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Manjapra, Kris. "The impossible intimacies of M N Roy." Postcolonial Studies 16, no. 2 (June 2013): 169–84. http://dx.doi.org/10.1080/13688790.2013.823261.
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Mukhkerjee, Subrata. "Book Review: Political Philosophy of M. N. Roy." India Quarterly: A Journal of International Affairs 43, no. 2 (April 1987): 180. http://dx.doi.org/10.1177/097492848704300214.
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Brennan, Timothy. "Future Interrupted: The Subjunctive Nationalism of M. N. Roy." South Atlantic Quarterly 122, no. 2 (April 1, 2023): 299–316. http://dx.doi.org/10.1215/00382876-10405077.
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Despite today’s routine denunciations of Eurocentrism and the rise of critical schools that consider imperialism to be the exclusive outgrowth of “European epistemologies,” Europe has always been a much more internally mixed entity than is usually supposed as a result of foreign occupations, unassimilated indigenous peoples, contested borders, and a massive cultural and intellectual influx from its present and former colonies. Especially interwar Europe saw this unevenness come to the fore with the residency in Europe of intellectuals and activists from the global South who joined Europeans of like mind in the wake of the Russian Revolution to forge a new international order. The Bengali revolutionary M. N. Roy was one of the most exceptional figures of this type, a promoter equally of science and humanism who dedicated the latter part of his life, in fact, to promoting a “radical and integral humanism” fashioned in part on the work of European thinkers of earlier centuries. In doing so, he was establishing the unevenness of Europe, and making a case for Europe as a joint creation. He was pointing out that these ostensibly European ideas derived from an Enlightenment infused with the more worldly and cosmopolitan philosophies of medieval Arabic, Persian, and Jewish thought.
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Pozza, Nicola. "Le monde en révolutions ou le parcours désorientant de M. N. Roy." Études de lettres, no. 2-3 (September 15, 2014): 343–66. http://dx.doi.org/10.4000/edl.785.
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Fuchs, Christian. "M. N. Roy and the Frankfurt School: Socialist Humanism and the Critical Analysis of Communication, Culture, Technology, Fascism and Nationalism." tripleC: Communication, Capitalism & Critique. Open Access Journal for a Global Sustainable Information Society 17, no. 2 (October 9, 2019): 249–86. http://dx.doi.org/10.31269/triplec.v17i2.1118.
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Manabendra Nath Roy (1887-1954) was the founder of the Communist Parties of Mexico and India and a socialist-humanist philosopher. In the Western world, his works are today widely ignored and forgotten. This article introduces some philosophical aspects of Roy’s thought. It engages with foundations of his theory and shows its relevance for the study of communication, culture, technology, the human being, fascism, and nationalism. Frankfurt School thinkers such as Theodor W. Adorno, Max Horkheimer, Herbert Marcuse, and Erich Fromm were interested in similar topics to Roy. This article also compares the approach of Roy and the Frankfurt School. It shows parallels between Roy and the first generation of the Frankfurt School with respect to themes such as the dialectic of technology and society, the dialectic of the Enlightenment, fascism, nationalism, and authoritarianism. In the age of new nationalisms and authoritarian capitalism, global environmental crises, capitalist crisis, and the digital crisis, socialist-humanist theories such as M. N. Roy’s can inspire struggles for a humanist and socialist society as antidotes to the acceleration and deepening of the three crises.
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Frasin, Basem Aref, and Luminiţa-Ioana Cotîrlă. "Partial Sums of the Normalized Le Roy-Type Mittag-Leffler Function." Axioms 12, no. 5 (April 29, 2023): 441. http://dx.doi.org/10.3390/axioms12050441.
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Recently, some researchers determined lower bounds for the normalized version of some special functions to its sequence of partial sums, e.g., Struve and Dini functions, Wright functions and Miller–Ross functions. In this paper, we determine lower bounds for the normalized Le Roy-type Mittag-Leffler function Fα,βγ(z)=z+∑n=1∞Anzn+1, where An=ΓβΓα(n−1)+βγ and its sequence of partial sums (Fα,βγ(z))m(z)=z+∑n=1mAnzn+1. Several examples of the main results are also considered.
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Patil, V. T. "Book Review: Political Philosophy: Leftism In India—M. N. Roy and Indian Politics 1920–1948." India Quarterly: A Journal of International Affairs 43, no. 2 (April 1987): 178–79. http://dx.doi.org/10.1177/097492848704300213.
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BAUMONT, R. "Table des matières." INRA Productions Animales 28, no. 5 (January 14, 2020): 429–31. http://dx.doi.org/10.20870/productions-animales.2015.28.5.3044.
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La Rédaction de la Revue tient à remercier vivement les 55 lecteurs-arbitres qui ont assuré l’analyse critique des articles publiés en 2015 :J. Agabriel, T. Astruc, E. Baéza, N. Bareille, C. Bayourthe, C. Berri, E. Blesbois, R. Botreau, I. Bouvarel, L. Casteilla, E. Chaillou, S. Clerjon, M. Coppa, B. Coudurier, S. Couvreur, L. Delaby, R. Delagarde, A. De La Torre, J.-Y. Dourmad, F. Dreyfus, M. Duclos, A. Ducos, C. Dumat, C. Duvaux-Ponter, B. Fauconneau, J.-P. Farrié, A. Farruggia, X. Fernandez, P. Fleury, L. Fortun-Lamothe, F. Gondret, N. Hagen-Picard, J.-F. Hocquette, N. Hostiou, G. Laferté, H. Lapierre, C. Larzul, V. Laudet, M. Lefrançois, P. Le Roy, P. Lescoat, D. Maes, M. Meisser, F. Meurens, C. Molette, M. Pech, E. Pottier, A. Priolo, A. Prunier, E. Quillet, C. Saegerman, M.-C. Salaün, L. Saulnier, D.A. Thewis, P. Veysset, A. Waret.
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Seth, Sanjay. "Kris Manjapra . M. N. Roy: Marxism and Colonial Cosmopolitanism . (Pathfinders.) New York: Routledge. 2010. Pp. xxiv, 201. Rs295." American Historical Review 116, no. 4 (October 2011): 1110. http://dx.doi.org/10.1086/ahr.116.4.1110.
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Cristiani, S., F. Sabbadin, and S. Ortolani. "High and Low Resolution Spectra of Selected Planetary Nebulae." Symposium - International Astronomical Union 131 (1989): 191. http://dx.doi.org/10.1017/s0074180900138008.
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High (CES spectrograph + RETICON at the CAT telescope) and low (B&C spectrograph + CCD at the 2.2-m telescope) resolution spectra of selected, southern planetary nebulae allowed to obtain the Hα and [NII] emission line profiles and the nebular emission line intensities in the spectral range λλ3650-9400 A. The Hα and [N II] emission line parameters were derived following the procedure used by Sabbadin (Monthly Not. Roy. Astron. Soc., 209, 889, 1984) and Ortolani and Sabbadin (Astron. Astrophys. Suppl. Series, 62, 17, 1985). Table 1 contains the relevant data for eight nebulae of the sample.
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Roy, Avijit, M. G. León, A. L. Stone, J. S. Hartung, and R. H. Brlansky. "First Report of Citrus leprosis virus Nuclear Type in Sweet Orange in Colombia." Plant Disease 98, no. 8 (August 2014): 1162. http://dx.doi.org/10.1094/pdis-02-14-0117-pdn.
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Colombia is ranked 18th in the world in citrus production and contributed 0.9% of the total world share. Among four important citrus-producing regions of Colombia, the Orinoco region (3 to 6°N, 68 to 74°W) consists of two citrus-producing states, Meta and Casanare. Citrus leprosis is the most important viral disease of citrus in Colombia (1,3). Three types of Citrus leprosis virus (CiLV) infect citrus, producing leprosis-like lesion symptoms. Two of the three CiLV species, Citrus leprosis virus cytoplasmic type (CiLV-C) and cytoplasmic type 2 (CiLV-C2), produce particles only in the cytoplasm (3). The other species, Citrus leprosis virus nuclear type (CiLV-N), produces particles in both the cytoplasm and nucleus (4). CiLV-C is more prevalent and destructive while CiLV-N has been reported only in Brazil, Panama, and Mexico (4). Interestingly, both CiLV-C and -C2 were reported from the same regions of Meta and Casanare States in Colombia in 2004 and 2012 (1,3). CiLV-C lesions are usually rounded (initially 2 to 3 mm in diameter and extending up to 30 mm), have dark-brown or greenish central chlorotic spots, and are surrounded by yellow halos. CiLV-N lesions have been described as smaller in size and form three well-defined regions including a necrotic center with an intermediate orange color halo and an outer chlorotic halo (2). In 2013, ‘Valencia’ sweet orange (Citrus sinensis L.) leaves with suspected CiLV-N symptoms were collected from 8 plants in Casanare State and shipped under permit to the USDA-APHIS-PPQ-CPHST, Beltsville, MD. Total RNA from symptomatic and healthy sweet orange leaves were extracted using the RNeasy Plant Mini Kit (Qiagen, Valencia, CA). RT-PCR primers specific to CiLV-C, CiLV-C2 (3), and CiLV-N nucleocapsid (N) (CiLV-N-NPF: 5′-ATGGCTAACCCAAGTGAGATCGATTA-3′; CiLV-N-NPR: 5′-AGTTGCCTTGAGATCATCACATTGGT-3′) and putative matrix protein (M) genes (CiLV-N-MF: 5′-ATGTCTAAACAGATTAATATGTGCACTGTG-3′; CiLV-N-MR: 5′-CTAACCACTGGGTCCCGC-3′) were utilized to identify the CiLV associated with the leprosis-affected leaf samples from Casanare. RT-PCR with CiLV-C primers failed to produce any amplicon, but CiLV-N primers successfully amplified the partial N gene (681 bp) and entire M gene (552 nt) amplicons from multiple leaves of all leprosis samples. In addition, a 795-bp amplicon specific to CiLV-C2 also was amplified from the CiLV-N suspected samples. Similar results were obtained when the vector, flat spider mite (Brevipalpus spp.) total RNA was used as template for RT-PCR. For further confirmation, each amplicon was cloned and sequenced. Sequencing of the N and M gene amplicons of CiLV-N (accession nos. KJ195893 and KJ195894) and coat protein gene of CiLV-C2 showed 97 to 99% nucleotide sequence identity with the CiLV-N M2345 isolate sequence (KF209275) from Mexico (4) and CiLV-C2 L147V1 isolate sequence (JX000024) from Colombia (3), respectively. Phylogenetic analyses of these N and M protein gene sequences confirmed a mixed infection of the same plant with two viruses, one from an unassigned new genus Dichorhavirus (CiLV-N) and another from genus Cilevirus (CiLV-C2). This is the first report of CiLV-N in Colombia, and also the first report of an occurrence of CiLV-N in mixed infection with CiLV-C2. All three known species of CiLV occur in the Orinoco region of Colombia. References: (1) M. G. León et al. Plant Dis. 90: 682, 2006. (2) J. P. R. Marques et al. Anais da Academia Brasileira de Ciências 82:501, 2010. (3) A. Roy et al. Phytopathology 103:488, 2013. (4) A. Roy et al. Genome Announc. 1(4): e00519-13, 2013.
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Canner, Claire, Christopher Hayes, Robin Huang, Michael Orwin, and Luke G. Rogers. "Resistance scaling on 4N-carpets." Forum Mathematicum 34, no. 1 (December 1, 2021): 61–75. http://dx.doi.org/10.1515/forum-2020-0330.
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Abstract The 4 N {4N} -carpets are a class of infinitely ramified self-similar fractals with a large group of symmetries. For a 4 N {4N} -carpet F, let { F n } n ≥ 0 {\{F_{n}\}_{n\geq 0}} be the natural decreasing sequence of compact pre-fractal approximations with ⋂ n F n = F {\bigcap_{n}F_{n}=F} . On each F n {F_{n}} , let ℰ ( u , v ) = ∫ F N ∇ u ⋅ ∇ v d x {\mathcal{E}(u,v)=\int_{F_{N}}\nabla u\cdot\nabla v\,dx} be the classical Dirichlet form and u n {u_{n}} be the unique harmonic function on F n {F_{n}} satisfying a mixed boundary value problem corresponding to assigning a constant potential between two specific subsets of the boundary. Using a method introduced by [M. T. Barlow and R. F. Bass, On the resistance of the Sierpiński carpet, Proc. Roy. Soc. Lond. Ser. A 431 (1990), no. 1882, 345–360], we prove a resistance estimate of the following form: there is ρ = ρ ( N ) > 1 {\rho=\rho(N)>1} such that ℰ ( u n , u n ) ρ n {\mathcal{E}(u_{n},u_{n})\rho^{n}} is bounded above and below by constants independent of n. Such estimates have implications for the existence and scaling properties of Brownian motion on F.
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Roy, Sudipta. "Perspectives and Impact of Green Electrodeposition." ECS Meeting Abstracts MA2022-02, no. 24 (October 9, 2022): 1002. http://dx.doi.org/10.1149/ma2022-02241002mtgabs.
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Green electrodeposition is a concept where electrodeposition is carried out sustainably; with safety, society, and environmental aspects playing a significant role in decision-making. ECS and electrochemists have seen large changes in the use of materials and chemicals over the last 50 years: for example, the slow phase out of mercury in labs and industry due to its toxicity [1]. On the other hand, the development of DSA and Boron-doped Diamond (BDD) electrodes have provided strategies for effluent control [2]. The Electrodeposition and Electroless Division (EDLP) members also would have faced challenges over the last 40 years. This could have involved replacing Cr(VI) electrolytes [3], Cd-based coatings, or developing cyanide-free processes [4]. In many cases EDLP has led the exploration of a new set of functional materials: an exemplar being “Get the Lead Out” Symposia Series focused on the development of Pb-free solders. Green Electrodeposition is a marriage of Green Chemical Principles and Electrodeposition. Green Chemical Principles [5], urges one to focus on the reduction of waste, atom economy, energy efficiency, benign solvents, etc. These guidelines are useful for the development of any process, including electrodeposition processes. To adopt these principles, one has to understand and consider the stability of chemical formulations [6], surface electrochemistry that enables electrodeposition [7] and energy and atom efficiency of the process [8]. Electrochemistry, in particular, is a low temperature, low pressure process using electrons to drive reactions which reduces waste. It should therefore follow, that electrochemistry has a significant advantage in offering “Green” processes if developed, implemented and monitored carefully. The talk will focus on how the concept started which simply focused on “prevention of generating” of waste. In particular it examined the notion of development of alternative formulations, the thermodynamics of stable electrolytes and associated issues. The application of this approach towards the development of gold deposition using non-cyanide baths for opto-electronic devices [9] will serve as an exemplar. Following this, the talk will focus effluent remediation of waste from printed circuit board manufacturing [10] and its extension to clean up of galvanic sludge from plating companies [11]. If time permits the use of engineering methodologies using current pulsing, novel agitation schemes and monitoring methods for energy efficiency and metal recycling and recovery will also be discussed. References: Castner-Kellner process as described in https://en.wikipedia.org/wiki/Castner%E2%80%93Kellner_process; Mercury poisoning – https://en.wikipedia.org/wiki/Mercury_poisoning. Accessed 07/04/2022. Panniza, E. Brillas, C. Comninellis, J. Environ. Eng. Manage., 18(3), 139 (2008). Liang, L. Ni, Q. Liu, J. Zhang, Surf. Coatings Tech., 218, 23 (2013). Okinaka, M. Hoshino, Gold Bull, 31, 3 (1980); T. A. Green, Gold Bull. 40, 105 (2007). https://www.acs.org/content/acs/en/greenchemistry/principles/12-principles-of-green-chemistry.html. Accessed 07/04/2022. Green, A. E. Russell, S. Roy, J. Electrochem. Soc, 145, 875(1998). Mattsson and J. M. Bockris, Trans. Faraday Soc., 55, 1586 (1959). E. G. Hansal and M. Halmdienst, “Energy and Material Considerations”, Pulse Plating, 1st Ed., pp. 184-188. Eds. W. Hansal and S. Roy, Leuze Verlag (2012). J. Liew, S. Roy, K. Scott, Green Chemistry 5, 376 (2003). Buckle and S. Roy, Separation and Purification Tech., 62, 86(2008); R. Buckle & S. Roy, 2006, ECS Transactions: Green Electrodeposition, 1, 13, pp. 53-58. T. Huyen, T. D. Dang, M. T. Tung, N. T. T. Huyen, T. A. Green and S. Roy, Hydrometallurgy,164, 295 (2016).
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Jiao, Li, Moulay-Tahar Sougrati, and Frederic Jaouen. "Structure and Activity-Durability Tradeoff of Coated Fe-N-C Catalysts for the Oxygen Reduction Reaction." ECS Meeting Abstracts MA2023-02, no. 40 (December 22, 2023): 1946. http://dx.doi.org/10.1149/ma2023-02401946mtgabs.
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Fe-based catalysts stand out for oxygen reduction reactions among the platinum group metal (PGM)-free catalysts for reducing the reliance on expensive and scarce platinum. With the endeavor of a PGM-free community, the state-of-the-art Fe-N-C catalysts have demonstrated encouraging initial activity in Proton Exchange Membrane Fuel Cell (PEMFC) 1-2. However, their long-term stability and durability remain a challenge, both in acidic liquid electrolyte cells and in single-cell PEMFCs3. Recently, a novel approach has demonstrated improved durability of Fe-N-C catalysts during ORR, which consisted of coating a pre-existing Fe-N-C with a thin carbon overlayer obtained via chemical vapor deposition of a metal-organic framework (ZIF-8), at 1100 °C4. However, the underlying mechanism for enhanced durability remains unclear. One of the keys to improved stability lies in the specific structure of the catalysts, including the coordination of the ORR-active iron atoms and the structure of the nitrogen-doped carbon matrix, especially the structure located at the top surface of catalysts. The CVD conditions that affect the structure of FeNC must be optimized, to achieve the optimal activity-durability trade-off. This presentation will report on the structure, activity, and durability trends of a suite of FeNC catalysts coated at different CVD conditions. The key parameters have been investigated, such as deposition temperature, overlayer thickness, and iron speciation on their ORR activity and durability. The coated Fe-N-C catalysts have been evaluated for their activity/durability (in oxygenated environments) both in liquid electrolyte cells and PEMFCs. The coated Fe-N-C demonstrated inferior initial activity and improved durability (Figure 1). The correlation between the structural information derived from multiple techniques (XRD, Mossbauer spectroscopy, TEM, Raman spectroscopy, N2 sorption, etc) and their electrochemical behaviors will be discussed. References Jiao, L.; Li, J.; Richard, L. L.; Sun, Q.; Stracensky, T.; Liu, E.; Sougrati, M. T.; Zhao, Z.; Yang, F.; Zhong, S.; Xu, H.; Mukerjee, S.; Huang, Y.; Cullen, D. A.; Park, J. H.; Ferrandon, M.; Myers, D. J.; Jaouen, F.; Jia, Q., Nature Materials 2021, 20 (10), 1385-1391. Mehmood, A.; Gong, M.; Jaouen, F.; Roy, A.; Zitolo, A.; Khan, A.; Sougrati, M.-T.; Primbs, M.; Bonastre, A. M.; Fongalland, D.; Drazic, G.; Strasser, P.; Kucernak, A., Nature Catalysis 2022, 5 (4), 311-323. Martinez, U.; Komini Babu, S.; Holby, E. F.; Zelenay, P., Current Opinion in Electrochemistry 2018, 9, 224-232. Liu, S.; Li, C.; Zachman, M. J.; Zeng, Y.; Yu, H.; Li, B.; Wang, M.; Braaten, J.; Liu, J.; Meyer, H. M.; Lucero, M.; Kropf, A. J.; Alp, E. E.; Gong, Q.; Shi, Q.; Feng, Z.; Xu, H.; Wang, G.; Myers, D. J.; Xie, J.; Cullen, D. A.; Litster, S.; Wu, G., Nature Energy 2022, 7 (7), 652-663. Figure 1
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Manna, Bibek. "Swami Vivekananda: His Humanism." RESEARCH REVIEW International Journal of Multidisciplinary 8, no. 6 (June 15, 2023): 161–65. http://dx.doi.org/10.31305/rrijm.2023.v08.n06.022.
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The concept of humanism is a core concept. Human being has social as well as moral values. The concept of humanism had elaborately been discussed by many contemporary Philosophers like Rabindranath Tagore, M. N Roy, M.K Gandhi. Vivekananda is one of them. He is one of the important social reformers like Raja Rammohan Roy in the Bengal Renaissance. We have gained many concepts related to humanism from the ancient scriptures like-’Bahujan hitaya, Bahujana sukhaya’ (For the welfare, peace and happiness of many), ‘Vasudhaiva Kutumbakam’ (The whole universe is one family), ‘Sarva Bhutahita’ (For the welfare of all beings) etc. these are all vividly enumerated in our ancient scriptures, are also the source of humanism in modern India. Vivekananda was emphasized on seva to the poor people. Vivekananda believed that God not only exists in a mandira or girza or a mosque but that God always exists everywhere. Vivekananda believed that all type of social welfare is for the sake of human. He coins the word Daridranarayana, God in the poor, and asked us to serve them. So this paper is highlighted to show the different angles or points of humanism.
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Larose, François. "L’approche interculturelle auprès de réfugiés et de nouveaux immigrants, par M. Chiasson-Lavoie, N. Théorêt, M. Gagnon, M. Cantin, J.J. Doricent, G. Azevedo et G. Roy, Montréal, Centre de services sociaux du Montréal métropolitain, 1992." Service social 42, no. 1 (1993): 154. http://dx.doi.org/10.7202/706606ar.
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Shumilova, Viktoriia. "The Virsky Ukrainian National Dance Company in the scope of the art research (between 2010–2020 years)." National Academy of Managerial Staff of Culture and Arts Herald, no. 2 (September 17, 2021): 211–16. http://dx.doi.org/10.32461/2226-3209.2.2021.240067.
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The purpose of the article has been to learn new historical, cultural and art sources have been posted between 2010–2020 years, related to the Virsky Ukrainian National Dance Company occupation that. The methodology includes the researching methods usage such as: overall historical, comparative-historical, dialectical, analytical, systemic, etc. The scientific novelty implies the novice in the researched historiographical sources made up between 2010–2020 years that have significantly boosted the scientific projection to learn the historical and art facts related to the Virsky Ukrainian National Dance Company occupation. Conclusions. The historical timeline between 2010–2020 years related to the Virsky Ukrainian National Dance Company art outcomes is presented by modern domestic researcher’s monographs and publications such as: T. Blagova, O. Burkovsky, N. Vadiasova, D. Vernygor, Y. Vernygor, E. Dosenko, M. Kurinna, V. Lytvynenko, E. Roy, R. Savchenko, N. Semenova, V. Chernets, V. Shulgina, V. Shumilova etc. Due to inquire the life and creative path the choreographers who have served for the USSR State Dance Ensemble (P. Virsky, M. Vantukh), the researchers analyzed the main phases to come up with their art approaches, determined to search the chiefs regarding to the extraordinary compositional consistency, observed the dynamic to develop the musical-choreographic drama by the Virsky Ukrainian National Dance Company modern dance performances etc.
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Goda, Yoshimi, Masanobu Kudaka, and Hiroyasu Kawai. "INCORPORATION OF WEIBULL DISTRIBUTION IN L-MOMENTS METHOD FOR." Coastal Engineering Proceedings 1, no. 32 (January 21, 2011): 62. http://dx.doi.org/10.9753/icce.v32.waves.62.
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The L-moments of the Weibull distribution are derived and incorporated in the regional frequency analysis of peaksover-threshold significant wave heights at eleven stations along the eastern coast of Japan Sea. The effective duration of wave measurements varies from 18.0 to 37.2 years with the mean rate of 10.4 to 15.1 events per year. The eleven stations are divided into three regions to assure homogeneity of the data. Both the Weibull and Generalized Pareto (GPA) distributions fit well to the observed data. The 100-year wave height varied from 8.2 to 11.2 m by the Weibull and 7.6 to 10.3 m by the GPA. The GPA distribution is not recommended for determination of design waves for these stations because it has an inherent upper limit and a tendency of under-prediction.
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Szczepanek, Jan, Tomasz M. Kardas, and Yuriy Stepanenko. "Group Delay measurements of ultrabroadband pulses generated in highly nonlinear fibers." Photonics Letters of Poland 8, no. 4 (December 31, 2016): 107. http://dx.doi.org/10.4302/plp.2016.4.06.
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Ultra broadband supercontinuum pulses are commonly used as a source of different wavelengths from a wide spectral bandwidth or as a source of very short pulses. However the processes responsible for wide spectral broadening are still under investigation. In this paper we examine the temporal and spectral characteristics of the pulses broadened upon propagation in the highly nonlinear photonics crystal fibers with different dispersion profiles. Generated supercontinuum pulses were experimentally characterized using cross-correlation frequency resolved optical gating technique. Full Text: PDF ReferencesM. Bradler, P. Baum, and E. Riedle, "Femtosecond continuum generation in bulk laser host materials with sub-?J pump pulses", Appl. Phys. B 97, 561 (2009). CrossRef T. M. Kardas, B. Ratajska-Gadomska, W. Gadomski, A. Lapini, and R. Righini, "The role of stimulated Raman scattering in supercontinuum generation in bulk diamond", Opt. Express 21, 24201 (2013). CrossRef A. Brodeur and S. L. Chin, "Band-Gap Dependence of the Ultrafast White-Light Continuum", Phys. Rev. Lett. 80, 4406 (1998). CrossRef R. R. Alfano, ed., The Supercontinuum Laser Source: Fundamentals with Updated References, 2nd ed (Springer, 2006). DirectLink A. L. Gaeta, Phys. "Catastrophic Collapse of Ultrashort Pulses", Rev. Lett. 84, 3582 (2000). CrossRef J. M. Dudley, G. Genty, and S. Coen, "Supercontinuum generation in photonic crystal fiber", Rev. Mod. Phys. 78, 1135 (2006). CrossRef M. Klimczak, B. Siwicki, P. Skibinski, D. Pysz, R. Stepien, A. Heidt, C. Radzewicz, and R. Buczynski, "Coherent supercontinuum generation up to 2.3 ?m in all-solid soft-glass photonic crystal fibers with flat all-normal dispersion", Opt. Express 22, 18824 (2014). CrossRef D. J. Kane and R. Trebino, "Characterization of arbitrary femtosecond pulses using frequency-resolved optical gating", IEEE J. Quantum Electron. 29, 571 (1993). CrossRef J. Dudley, X. Gu, L. Xu, M. Kimmel, E. Zeek, P. O'Shea, R. Trebino, S. Coen, and R. Windeler, "Cross-correlation frequency resolved optical gating analysis of broadband continuum generation in photonic crystal fiber: simulations and experiments", Opt. Express 10, 1215 (2002). CrossRef N. Nishizawa and T. Goto, "Experimental analysis of ultrashort pulse propagation in optical fibers around zero-dispersion region using cross-correlation frequency resolved optical gating", Opt. Express 8, 328 (2001). CrossRef X. Gu, L. Xu, M. Kimmel, E. Zeek, P. O'Shea, A. P. Shreenath, R. Trebino, and R. S. Windeler, "Frequency-resolved optical gating and single-shot spectral measurements reveal fine structure in microstructure-fiber continuum", Opt. Lett. 27, 1174 (2002). CrossRef S. Roy, S. K. Bhadra, and G. P. Agrawal, "Effects of higher-order dispersion on resonant dispersive waves emitted by solitons", Opt. Lett. 34, 2072?2074 (2009). CrossRef S. Bose, S. Roy, R. Chattopadhyay, M. Pal, and S. K. Bhadra, "Experimental and theoretical study of red-shifted solitonic resonant radiation in photonic crystal fibers and generation of radiation seeded Raman soliton", J. Opt. 17, 105506 (2015). CrossRef T. Roger, M. F. Saleh, S. Roy, F. Biancalana, C. Li, and D. Faccio, "High-energy, shock-front-assisted resonant radiation in the normal dispersion regime", Phys. Rev. A 88, (2013). CrossRef G. P. Agrawal, Nonlinear Fiber Optics, Fifth edition (Elsevier/Academic Press, 2013). DirectLink J. Szczepanek, T. Kardas, M. Nejbauer, C. Radzewicz, and Y. Stepanenko, "Simple all-PM-fiber laser system seeded by an all-normal-dispersion oscillator mode-locked with a nonlinear optical loop mirror", Proc. SPIE 9728, 972827 (2016). CrossRef C. Iaconis and I. A. Walmsley, "Self-referencing spectral interferometry for measuring ultrashort optical pulses", IEEE J. Quantum Electron. 35, 501 (1999). CrossRef L. E. Hooper, P. J. Mosley, A. C. Muir, W. J. Wadsworth, and J. C. Knight, "Coherent supercontinuum generation in photonic crystal fiber with all-normal group velocity dispersion", Opt. Express 19, 4902 (2011). CrossRef J. Szczepanek, T. M. Kardas, and Y. Stepanenko, "Sub-160-fs pulses dechriped to its Fourier transform limit generated from the all-normal dispersion fiber oscillator", Optical Society of America Frontiers in Optics conference, FTu3C?2 (2016). CrossRef G. Genty, M. Lehtonen, and H. Ludvigsen, "Effect of cross-phase modulation on supercontinuum generated in microstructured fibers with sub-30 fs pulses", Opt. Express 12, 4614 (2004). CrossRef S. Roy, S. K. Bhadra, K. Saitoh, M. Koshiba, and G. P. Agrawal, "Dynamics of Raman soliton during supercontinuum generation near the zero-dispersion wavelength of optical fibers", Opt. Express 19, 10443 (2011). CrossRef Y. Liu, Y. Zhao, J. Lyngso, S. You, W. L. Wilson, H. Tu, and S. A. Boppart, "Suppressing Short-Term Polarization Noise and Related Spectral Decoherence in All-Normal Dispersion Fiber Supercontinuum Generation", J. Light. Technol. 33, 1814 (2015). CrossRef
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Bose, Neilesh. "Muslim Modernism and Trans-regional Consciousness in Bengal, 1911–1925." South Asia Research 31, no. 3 (November 2011): 231–48. http://dx.doi.org/10.1177/026272801103100303.
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Histories of Marxism in South Asia often focus on the great men of colonial Indian politics, such as M. N. Roy, who imagined political futures away from nation or identity, or narrowly on activists like Muzaffar Ahmad, the founder of the Communist Party of India, without consideration of the regional-historical and intellectual contexts out of which such activism and imaginations sprang. Using the Bengali Muslim context of the early twentieth century, this article examines how Muslim activists imagined their identity outside of and beyond normative frameworks such as nation or religious community. This article specifically analyses Samyabadi, a left-oriented journal published in Calcutta from 1922 to 1925, in the larger context of communist developments in Bengal and throughout India. The findings offer exciting support for new research approaches to regional and religious identity in late colonial South Asia.
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Suduwella, Thilini Malsha, Vikram Singh, Mark Aloisio, Ahmadreza Nezamzadeh Ezhieh, Cathleen Crudden, Janine Mauzeroll, and Yuanjiao Li. "Electrochemical Deposition of N-Heterocyclic Carbene on Steels As a Corrosion Protective Layer." ECS Meeting Abstracts MA2023-02, no. 13 (December 22, 2023): 1133. http://dx.doi.org/10.1149/ma2023-02131133mtgabs.
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Steels play a vital role in every aspect of day-to-day life. They are major components in construction, transportation, medicine, and etc. Despite their larger usability, steels are suffering from inevitable corrosion. Hence, finding a sustainable solution for corrosion has been a hot topic in the research field for centuries. One extensively studied strategy is applying a protective layer on top of metals. The recent findings show that N-heterocyclic carbene (NHC) has the potency to form a carbon-metal bond through self-assembling1 or electrochemical deposition2 on different metals such as Au, Pt, Pd, and Ag. Herein, we are trying to coat NHC on mild steel (MS) through electrochemical deposition to act as a corrosion protective layer. Deposition conditions will be optimized by varying the material concentrations, applied voltages, time durations, and substrate roughness. The NHC-coated surface is characterized by X-ray Photoelectron Spectroscopy (XPS), Matrix-Assisted Laser Desorption/Ionization (MALDI), and Atomic Force Microscope-Infrared Spectroscopy (AFM-IR). In addition, the contact angle measurements can be attributed to visualizing the differences in coatings under different conditions. The corrosion studies are utilized to understand the corrosion-resistant properties of the NHC coating. Moreover, the NHC moiety can be modified to perform better to inhibit corrosion and improve the properties of mild steel on their applications. Ultimately, this benchtop approach will be utilized and tested on a large scale and industrial level. (1) Crudden, C. M.; Horton, J. H.; Ebralidze, I. I.; Zenkina, O. V.; McLean, A. B.; Drevniok, B.; She, Z.; Kraatz, H.-B.; Mosey, N. J.; Seki, T. Ultra stable self-assembled monolayers of N-heterocyclic carbenes on gold. Nat. Chem. 2014, 6 (5), 409-414. (2) Amit, E.; Dery, L.; Dery, S.; Kim, S.; Roy, A.; Hu, Q.; Gutkin, V.; Eisenberg, H.; Stein, T.; Mandler, D. Electrochemical deposition of N-heterocyclic carbene monolayers on metal surfaces. Nat. Commun. 2020, 11 (1), 1-10.
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Kellner, Simon, Mengnan WANG, Sandrine Heutz, Ifan E. L. Stephens, and Magda Titirici. "Macroporous Carbon Films Support Vs. Conventional Carbon Particles with FeN4 Sites for Oxygen Reduction in Gas-Diffusion-Electrodes." ECS Meeting Abstracts MA2023-01, no. 8 (August 28, 2023): 1083. http://dx.doi.org/10.1149/ma2023-0181083mtgabs.
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Novel synthetic approaches have been developed to maximize the active site density of atomically dispersed Fe sites coordinated to nitrogen in carbon matrix. (Fe-N-C) (1,2) Nevertheless, the realistic maximum for single iron sites in these catalysts is deduced to be limited to 1021 sites per gram. (3) Therefore, for the application these Fe-N-C catalysts at the cathode for the oxygen reduction reaction in fuel cells, the catalyst material loading has to be increased to be able compete with the performance of Pt/C catalysts. Due to the resulting increased thickness of Fe-N-C catalyst layers, the oxygen available for the ORR at high current densities is dependent on the insufficient transport of oxygen across the catalyst layer. Freestanding catalyst nanostructured films, whose porosity is controlled across the entire thickness of the catalyst layer are expected to improve the mass transport at high current densities. Carbon nanostructures could provide the support substrate for such freestanding catalyst films. For instance, mesophase pitch-based films have been templated by silica (SiO2) nanoparticles have favourable morphologies for supporting Pt. (4) However, harsh conditions and long reaction times are required to etch away the SiO2. In our work, SiO2 nanoparticles are substituted by polystyrene nanoparticles, which decompose and tracelessly evaporate during the carbonization process. We have fabricated carbonized films of multiple thicknesses. We found 100 µm to be optimal, substantially thicker than Pt based electrodes to accommodate the lower density of sites and cheaper catalyst material. which is a usual thickness for Fe-N-C-based cathodes. Iron phthalocyanine (FePc) as a model active site is adsorbed on the freestanding carbon film. Gas-Diffusion-Electrodes (GDE) enable us to investigate the performance of such freestanding thin film catalysts at high current densities relevant for fuel cells. (5) A comparison of the ORR performance of catalyst layers, based on carbon films support (A) and conventional carbon particle support (B) are presented. We discuss the effect of adjusting the thickness of the two types of catalyst layers on the performance. 1 Barrio J, Pedersen A, Feng J, Sarma S. C., Wang M, Li A. Y. , Luo, H. Ryan M. P., Titirici M.-M., Stephens I. E. L. J. Mater. Chem. A, 2022;10: 6023-30 2 Mehmood A, Pampel J, Ali G, Ha H Y, Ruiz-Zepeda F, Fellinger T P Adv. Energy Mater., 2018; 8: 11649-55 3 Mehmood A, Gong M, Jaouen F, Roy A, Zitolo A, Khan A, Sougrati M.-T., Primbs M., Martinez Bonastre A, Fongalland D, Drazic G, Strasser P, Kucernak A Nat. Cat., 2022;5, 311-23 4 Atwa M, Li X, Wang Z, Dull S, Xu S, Tong X, Tang R, Nishihara H, Prinz F, Birss V 2021;8: 2451-62 5 Inaba M, Jesen A W, Sievers G W, Escudero-Escribano M, Zana A, Arenz M Energy Environ. Sci,2018;11: 988-94
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Tarnopolsky, M. A., M. Bosman, J. R. Macdonald, D. Vandeputte, J. Martin, and B. D. Roy. "Postexercise protein-carbohydrate and carbohydrate supplements increase muscle glycogen in men and women." Journal of Applied Physiology 83, no. 6 (December 1, 1997): 1877–83. http://dx.doi.org/10.1152/jappl.1997.83.6.1877.
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Tarnopolsky, M. A., M. Bosman, J. R. MacDonald, D. Vandeputte, J. Martin, and B. D. Roy. Postexercise protein-carbohydrate and carbohydrate supplements increase muscle glycogen in men and women. J. Appl. Physiol. 83(6): 1877–1883, 1997.—We have previously demonstrated that women did not increase intramuscular glycogen in response to an increased percent of dietary carbohydrate (CHO) (from 60 to 75% of energy intake) (M. A. Tarnopolsky, S. A. Atkinson, S. M. Phillips, and J. D. MacDougall. J. Appl. Physiol. 78: 1360–1368, 1995). CHO and CHO-protein (Pro) supplementation postexercise can potentiate glycogen resynthesis compared with placebo (K. M. Zawadzki, B. B. Yaspelkis, and J. L. Ivy. J. Appl. Physiol. 72: 1854–1859, 1992). We studied the effect of isoenergetic CHO and CHO-Pro-Fat supplements on muscle glycogen resynthesis in the first 4 h after endurance exercise (90 min at 65% peak O2 consumption) in trained endurance athletes (men, n= 8; women, tested in midfollicular phase, n = 8). Each subject completed three sequential trials separated by 3 wk; a supplement was provided immediately and 1-h postexercise: 1) CHO (0.75 g/kg) + Pro (0.1 g/kg) + Fat (0.02 g/kg), 2) CHO (1 g/kg), and 3) placebo (Pl; artificial sweetener). Subjects were given prepackaged, isoenergetic, isonitrogenous diets, individualized to their habitual diet, for the day before and during the exercise trial. During exercise, women oxidized more lipid than did men ( P< 0.05). Both of the supplement trials resulted in greater postexercise glucose and insulin compared with Pl ( P < 0.01), with no gender differences. Similarly, both of these trials resulted in increased glycogen resynthesis (37.2 vs. 24.6 mmol ⋅ kg dry muscle−1 ⋅ h−1, CHO vs. CHO-Pro-Fat, respectively) compared with Pl (7.5 mmol ⋅ kg dry muscle−1 ⋅ h−1; P < 0.001) with no gender differences. We conclude that postexercise CHO and CHO-Pro-Fat nutritional supplements can increase glycogen resynthesis to a greater extent than Pl for both men and women.
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Stephens, Ifan Erfyl Lester. "(Invited) Correlative Spectroscopy to Elucidate the Factors Controlling the Kinetics of Oxygen Evolution." ECS Meeting Abstracts MA2023-01, no. 47 (August 28, 2023): 2513. http://dx.doi.org/10.1149/ma2023-01472513mtgabs.
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It is particularly challenging to catalyse oxygen evolution under the acidic conditions of polymer electrolyte membrane (PEM) electrolysers. All compounds, apart from IrOx and RuO x , are catalytically inactive or unstable. In alkaline electrolysers, a wider range of materials are available, including non precious metal oxides based on Co and Ni. Herein, I will discuss our recent mechanistic studies on model oxygen evolution catalysts, including RuOx, IrOx, doped CoOxHy and NiOxHy.1-6 I will correlate operando spectroscopy to X-ray absorption spectroscopy, to reveal the factors controlling the factors controlling the kinetics for water oxidation. Density functional theory measurements provide a molecular scale explanation for the observed phenomena. 1 Rao, R. R., Corby, S., Bucci, A., Garcia-Tecedor, M., Mesa, C. A., Rossmeisl, J., Gimenez, S., Lloret-Fillol, J., Stephens, I. E. L. & Durrant, J. R. J. Am. Chem. Soc. 144, 7622, (2022). 2 Bozal-Ginesta, C., Rao, R. R., Mesa, C. A., Wang, Y. X., Zhao, Y. Y., Hu, G. F., Anton-Garcia, D., Stephens, I. E. L., Reisner, E., Brudvig, G. W., Wang, D. W. & Durrant, J. R. J. Am. Chem. Soc. 144, 8454, (2022). 3 Rao, R. R., Stephens, I. E. L. & Durrant, J. R. Joule 5, 16, (2021). 4 Bozal-Ginesta, C., Rao, R. R., Mesa, C. A., Xinyi, L., Hillman, S. A. J., Stephens, I. E. L. & Durrant, J. R. ACS Catalysis , (2021). 5 Rao, R. R., Kolb, M. J., Giordano, L., Pedersen, A. F., Katayama, Y., Hwang, J., Mehta, A., You, H., Lunger, J. R., Zhou, H., Halck, N. B., Vegge, T., Chorkendorff, I., Stephens, I. E. L. & Shao-Horn, Y. Nature Catalysis 3, 516, (2020). 6 Roy, C., Rao, R. R., Stoerzinger, K. A., Hwang, J., Rossmeisl, J., Chorkendorff, I., Shao-Horn, Y. & Stephens, I. E. L. Acs Energy Letters 3, 2045, (2018).
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Угольников, В., and V. Ugolnikov. "INNOVATIVE ENTERPRISES AS A WAY TO STABLE ECONOMY IN SINGLE-INDUSTRY TOWNS (MEDICAL EQUIPMENT PRODUCTION CASE STUDY)." Bulletin of Kemerovo State University. Series: Political, Sociological and Economic sciences 2018, no. 2 (March 25, 2018): 146–51. http://dx.doi.org/10.21603/2500-3372-2018-2-146-151.
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<p>The current research features various models of social and economic development in single-industry towns in the sphere of medical innovations. Methodological basis of the article are the works by A. I. Tatarkin, V. N. Bobkov, I. V. Makarova, P.S. Mstislavsky, A. N. Oleinik, V. I. Perkhov, O. V. Pushkarev, O. M. Roy The study results can be used in scientific and practical research in the fields of innovations, healthcare, high-tech medical care, innovative development of territories, and project activities. In general, the study can assist single-industry cities with a complex socioeconomic situation. Research results. We have established a connection between the life quality in problemplagued single-industry towns and public health. The population of such single-profile settlements decreases due to social-economic policies of local and regional authorities, since programs for their development do not presuppose innovative production.<br />In conclusion, the authors recommend starting enterprises that would produce innovative<br />products. These enterprises are associated with providing the population with hightech medical care and services. The recommendations will lead to an improvement of the quality of life, population growth and density, changes in the age structure, and an increase in the life expectancy. This measure will help to stabilize a pre-crisis situation / crisis situation and facilitate the development of socio-economic processes</p>
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Keating, Blane, Ian McPherson, Dimitrious Valavanis, Aaron-Jerome Agyei, and Patrick Unwin. "Seccm-IRM: A New Tool for Quantitative in Situ Studies of Crystal Growth." ECS Meeting Abstracts MA2022-01, no. 24 (July 7, 2022): 2498. http://dx.doi.org/10.1149/ma2022-01242498mtgabs.
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Scanning electrochemical cell microscopy (SECCM) is a versatile scanning probe imaging technique that allows for simultaneous elucidation of structure activity relationships at the nanoscale in defined electrolyte volumes and provides high resolution (nm length scale) information on the topography of surfaces and interfaces1. Since its inception in 2010 SECCM has improved understanding of model systems such as graphene, graphite, carbon nanotubes, nanoparticles and conductive diamond and provided electrochemists with a tool for true single entity measurements. Electrodeposition of microscale thin films has previously been reported2 but not of crystalline species, which is the focus of this work. SECCM can also be used as a tool for the precise delivery of nano to microscale solution droplets to surfaces. By using optically transparent yet conductive substrates (such as indium tin oxide (ITO), gold or graphene ) we can couple SECCM to highly surface-sensitive imaging modes such as interference reflectance microscopy (IRM)3 or traditional brightfield microscopy, allowing the evaporation and consequent precipitation of solutes to be monitored. The SECCM apparatus allows the deposition of large arrays, under well-defined conditions (deposition time, surface potential), with each droplet representing an individual and independent crystallisation experiment and provides statistical data based on single particle level. The emergence of precipitates within these arrays is tracked to investigate the effect of additives and also surface potential on crystallisation. SECCM can use capacitative response to examine minimally ionised systems, non-aqueous solvents etc allowing organic crystals to be studied. This work focuses on the precipitation of two such model organic systems: l-cystine and 5-methyl-2-[(2-nitrophenyl)amino]thiophene-3-carbonitrile (ROY). l-Cystine is of biological relevance due to its role in the formation of kidney stone’s which are resistant to traditional therapies4. The need therefore arises for l-cystine crystallisation inhibitors making it a prime candidate for testing additive screening procedures. ROY is investigated as a model system5 to identify the merits of SECCM-IRM as a polymorph screen method. We show how sensitive precipitation is to substrate, applied potential and solvent system. References Ebejer, N.; Güell, A. G.; Lai, S. C. S.; McKelvey, K.; Snowden, M. E.; Unwin, P. R., Scanning Electrochemical Cell Microscopy: A Versatile Technique for Nanoscale Electrochemistry and Functional Imaging. Annual Review of Analytical Chemistry 2013, 6 (1), 329-351. Aaronson, B. D. B.; Garoz-Ruiz, J.; Byers, J. C.; Colina, A.; Unwin, P. R., Electrodeposition and Screening of Photoelectrochemical Activity in Conjugated Polymers Using Scanning Electrochemical Cell Microscopy. Langmuir 2015, 31 (46), 12814-12822. Valavanis, D.; Ciocci, P.; Gabriel; Morris, P.; Lemineur, J.-F.; McPherson, I. J.; Kanoufi, F.; Unwin, P. R., Hybrid scanning electrochemical cell microscopy-interference reflection microscopy (SECCM-IRM): tracking phase formation on surfaces in small volumes. Faraday Discussions 2022. Rimer, J. D.; An, Z.; Zhu, Z.; Lee, M. H.; Goldfarb, D. S.; Wesson, J. A.; Ward, M. D., Crystal Growth Inhibitors for the Prevention of l -Cystine Kidney Stones Through Molecular Design. Science 2010, 330 (6002), 337-341. Lévesque, A.; Maris, T.; Wuest, J. D., ROY Reclaims Its Crown: New Ways To Increase Polymorphic Diversity. Journal of the American Chemical Society 2020, 142 (27), 11873-11883.
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Parkin, D. W. "Cosmic Spherules, Asteroid Collisions and the Solar Constant." International Astronomical Union Colloquium 85 (1985): 183. http://dx.doi.org/10.1017/s0252921100084608.
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AbstractIn 1980 (Phil. Trans. Roy. Soc. 297, 495) and in 1983 (Geophys. Jour. Roy. Astr. Soc. 75, 473) it was proposed that cosmic spherules are formed as splash ejecta in asteroidal collisions. The Poynting-Robertson effect size-sorts the spherules as they spiral to Earth in circular orbits. The time taken in My is given byΔt = 3.5 × 10−7 Dδ (a2 − 1)where a (in AU) is the collision distance from the Sun, D (in um) is the diameter of the spherules and δ (in kg/m−3) its density. In the 1983 paper, we tested the hypothesis by plotting the size of all the iron spherules (≥ 43 μm diam.) against time for two dated N. Pacific cores. Sloping lines, giving a ~ 2.1 AU, could be discerned; but their existence could be disputed - see figure 6.In current work, all the spherules from core V21-65 have been cracked open to find δ. Out of 220 spherules, 65 have rusted metal globules and these (Dδ) points give a confused plot, because of inaccurate δ-values. However, 66 spherules have their metal globules well preserved. Since globule diameter and %Ni can be accurately measured, δ can be calculated. These (Dδ) points show two sloping lines with some clarity, giving a ~ 3.4 AU; also, there are vague lines, giving a-values well within the main asteroid belt.To establish the hypothesis, wide cores are needed, giving an abundance of undamaged spherules. To obtain accurate a-values, the Robertson formula requires correction because of the spherule’s “hummocky” oxide surface. Also, any waviness in the sloping lines could be a measure of a variable solar constant.A new kind of iron spherule was found because of the cracking; 13 enclose opaque beads of true glass (rich in Fe, Ni and Si, no Mg) instead of metal globules. Crushed bits are deep ruby-red and nonmagnetic.
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Pinilla, Sergio, Jesús Inocente Medina-Santos, Enrique Garcia - Quismondo, Rebeca Marcilla, and Jesus Palma. "Modified Chronoamperometry as an Evaluation Method for Li-Ion Batteries." ECS Meeting Abstracts MA2023-02, no. 2 (December 22, 2023): 435. http://dx.doi.org/10.1149/ma2023-022435mtgabs.
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In the framework of new materials and next-generation batteries, the acceleration and quantification of the improvements that these advances pose, have become a priority in the field. In this regard, rate performance sits in an interesting spot. It is gaining more and more importance due to the electrification of transportation but its quantitative analysis is usually overlooked. In this regard, recently, new methodologies have been developed to allow the quantification of the rate performance. [1] It has been shown that the parameters used for this quantification, can be linked to intrinsic properties of the electrodes and materials, becoming a tool to further improve their understanding and optimization.[2] However, the usefulness of this methodology is damped by the slow acquisition of the rate data by galvanostatic cycling, which at very low rates can take even weeks. This limitation leads to reduced data density hampering the building of solid statistics to feed models. To mitigate this problem, chronoamperometry has been proposed as an accelerated method to acquire rate-performance data.[3] It has been proved that the low current/rate section of the chronoamperometry indeed matches the data of the galvanostatic equivalent, and it has been used as a way to characterize materials and electrodes.[4, 5] However, the high current/rate section has proved much more challenging, showing inconsistent results across references and a not well-understood dependence on materials that manifest as another contribution that difficult the data interpretation. [6] In this work, we focus on the high-rate behavior of the chronoamperometric response of the electrodes. We show how this abnormal contribution can distort the fitting of the capacity-rate curves highly affecting the quantification of the rate performance parameters. To avoid this distortion, we have investigated the origin of the contribution by electrochemical impedance spectroscopy and simulations, and developed a methodology to isolate and mitigate it. This leads to more reliable datasets that permit very accurate fittings that match the galvanostatic data and works for all the common LIBs materials tested.[7] These advances will surely boost the usefulness and reliability of the technique as a way to characterize batteries. (1) Heubner, C.; L¨ammel, C.; Nickol, A.; Liebmann, T.; Schneider, M.; Michaelis, A. Journal of Power Sources 2018, 397, Publisher: Elsevier, 11–15. (2) Tian, R.; Park, S.-H. H.; King, P. J.; Cunningham, G.; Coelho, J.; Nicolosi, V.; Coleman, J. N. Nature Communications 2019, 10, Publisher: Nature Publishing Group, 1933. (3) Heubner, C.; Seeba, J.; Liebmann, T.; Nickol, A.; B¨ orner, S.; Fritsch, M.; Nikolowski, K.; Wolter, M.; Schneider, M.; Michaelis, A. Journal of Power Sources 2018, 380, 83–91. (4) Pinilla, S.; Ryan, S.; McKeon, L.; Lian, M.; Vaesen, S.; Roy, A.; Schmitt, W.; Coleman, J. N.; Nicolosi, V. Advanced Energy Materials 2023, 2203747. (5) Tian, R.; Alcala, N.; O’Neill, S. J.; Horvath, D.; Coelho, J.; Griffin, A.; Zhang, Y.; Nicolosi, V.; O’Dwyer, C.; Coleman, J. N. ACS Applied Energy Materials 2020, DOI: 10.1021/acsaem. 0c00034. (6) Tian, R.; King, P. J.; Coelho, J.; Park, S. H.; Horvath, D. V.; Nicolosi, V.; O’Dwyer, C.; Coleman, J. N. Journal of Power Sources 2020, 468, DOI: 10.1016/j.jpowsour.2020.228220. (7) Manuscript under preparation.
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Opilski, Zbigniew, Marcin Procek, Salvador Aznar-Cervantes, Jose Cenis, and Xavier Munoz. "Fiber optic humidity sensor based on silk fibroin interference films." Photonics Letters of Poland 12, no. 2 (July 1, 2020): 49. http://dx.doi.org/10.4302/plp.v12i2.1018.
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The article presents an inexpensive and simple method of fiber optic interference relative humidity (RH) sensors based on silk fibroin (SF) films. The sensors were made on standard multimode telecommunications optical fibers using dip-coating method and examined using broadband light sources. The measuring stand at which the basic sensor parameters were measured and the measured parameters were presented. Full Text: PDF ReferencesY.-G. Han, "Relative Humidity Sensors Based on Microfiber Knot Resonators—A Review", Sensors, 19(23), 5196 (2019) CrossRef L.D. Koh, Y. Cheng, C. P. Teng, Y. W. Khin, X. J. Loh, S. Y. Tee, et al., "Structures, mechanical properties and applications of silk fibroin materials", Prog. Polim. Sci. 46, 86-110 (2015) CrossRef H. Tao, D. L. Kaplan, F. G. Omenetto, "Silk Materials – A Road to Sustainable High Technology", Adv. Mater., 24, 2824-2837 (2012), CrossRef Q. Li, N. Qi, Y. Peng, Y. Zhang, L. Shi, X. Zhang, et al., "Sub-micron silk fibroin film with high humidity sensibility through color changing", RSC Adv. 7(29), 17889-17897 (2017) CrossRef S.K. Hwan, H.C. Sung, B. Roy, S. Kim, Y.H. Ahn, "Humidity sensing using THz metamaterial with silk protein fibroin", Opt. Express 26(26), 33575-33581 (2018) CrossRef M. Procek, Z. Opilski, A. M. Maqueda, X. M. Berbel, S. D. Aznar-Cervantes, J. L. Cenis, C. D. Horna, "Silk fibroin thin films for optical humidity sensing", Proc. SPIE , 11204, 0277-786X, (2019). CrossRef Y. Luo, Y. Pei, X. Feng, B. Lu, L. Wang, "Silk fibroin based transparent and wearable humidity sensor for ultra-sensitive respiration monitoring", Mater. Lett., 260, 126945 (2020) CrossRef E. Maciak, "Low-Coherence Interferometric Fiber Optic Sensor for Humidity Monitoring Based on Nafion® Thin Film†", Sensors 19(3), 629 (2019) CrossRef
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Dorner, Peter. "Prosterman, Roy L., Mary N. Temple, and Timothy M. Hanstad, eds. Agrarian Reform and Grassroots Development: Ten Case Studies . Boulder CO: Lynne Rienner Publishers, 1990, x + 339 pp., price unknown." American Journal of Agricultural Economics 73, no. 4 (November 1991): 1295–96. http://dx.doi.org/10.2307/1242467.
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Paquette-Côté, Karine. "Bélair, L. M., Lebel, C., Sorin, N., Roy, A. et Lafortune, L. (2010). Régulation et évaluation des compétences en enseignement : vers la professionnalisation. Québec, Québec : Presses de l’Université du Québec." Revue des sciences de l'éducation 38, no. 3 (2012): 654. http://dx.doi.org/10.7202/1022719ar.
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Handley, Lori Lawson. "A Natural History of Ladybird Beetles. By M. E. N. Majerus; edited by H. E. Roy and P. M. J. Brown. Cambridge and New York: Cambridge University Press. $59.99. xi + 397 p.; ill.; index. ISBN: 978-1-107-11607-8. 2016." Quarterly Review of Biology 94, no. 2 (June 2019): 213–14. http://dx.doi.org/10.1086/703591.
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Cariñena, J. F., X. Gràcia, G. Marmo, E. Martínez, M. C. Muñoz-Lecanda, and N. Román-Roy. "Structural aspects of Hamilton–Jacobi theory." International Journal of Geometric Methods in Modern Physics 13, no. 02 (January 26, 2016): 1650017. http://dx.doi.org/10.1142/s0219887816500171.
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In our previous papers [J. F. Cariñena, X. Gràcia, G. Marmo, E. Martínez, M. C. Muñoz-Lecanda and N. Román-Roy, Geometric Hamilton–Jacobi theory, Int. J. Geom. Meth. Mod. Phys. 3 (2006) 1417–1458; Geometric Hamilton–Jacobi theory for nonholonomic dynamical systems, Int. J. Geom. Meth. Mod. Phys. 7 (2010) 431–454] we showed that the Hamilton–Jacobi problem can be regarded as a way to describe a given dynamics on a phase space manifold in terms of a family of dynamics on a lower-dimensional manifold. We also showed how constants of the motion help to solve the Hamilton–Jacobi equation. Here we want to delve into this interpretation by considering the most general case: a dynamical system on a manifold that is described in terms of a family of dynamics (slicing vector fields) on lower-dimensional manifolds. We identify the relevant geometric structures that lead from this decomposition of the dynamics to the classical Hamilton–Jacobi theory, by considering special cases like fibered manifolds and Hamiltonian dynamics, in the symplectic framework and the Poisson one. We also show how a set of functions on a tangent bundle can determine a second-order dynamics for which they are constants of the motion.
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Ayadi, H., E. Mihaesco, N. Congy, J. P. Roy, M. C. Gendron, J. Laperriere, F. Prelli, B. Frangione, and J. C. Brouet. "H chain V region sequences of three human monoclonal IgM with anti-myelin-associated glycoprotein activity." Journal of Immunology 148, no. 9 (May 1, 1992): 2812–16. http://dx.doi.org/10.4049/jimmunol.148.9.2812.
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Abstract The amino acid sequence corresponding to the V region H chain gene used by three monoclonal IgM directed to the myelin-associated glycoprotein (MAG) is presented. They all belonged to the VHIII variability subgroup, but each may well represent a new member of this family inasmuch as their homology with previously sequenced VHIII genes was less than 80%. Strikingly, there was no greater homology between the H chain V regions of the anti-MAG IgM. Partial amino acid sequence data indicated that these V regions were joined to as yet unidentified DH segments; however, two H chains used very similar DH, possibly indicating that this sequence was involved in the fine specificity of the IgM for MAG. All H chains included a JHIV region. These data, together with results obtained from the sequence of the three kappa L chains of the same IgM molecules (Mihaesco, E., H. Ayadi, N. Congy, M. C. Gendron, J. P. Roy, H. Heyermann, B. Frangione, and J. C. Brouet. 1989. J. Biol. Chem. 264:21481), indicate that the repertoire of VL and VH gene segments used by anti-MAG IgM is quite diverse, in contrast to previous structural data obtained for other human monoclonal IgM autoantibodies. Possibly, these differences reflect distinct pathogenesis.
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Roy, Indrani, and Jordi Cabana. "Evaluate the Limits of F Covalent Bonding with Transition Metals at High Valent States in Li2MO2f ( M = Mn, Co, Ni ) Oxyfluoride." ECS Meeting Abstracts MA2023-02, no. 2 (December 22, 2023): 346. http://dx.doi.org/10.1149/ma2023-022346mtgabs.
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The capacity of transition metal oxides as Li-ion battery cathodes are limited by instabilities that arise when high states of charge are achieved1. Oxyfluorides with a disordered rock-salt structure have emerged as attractive alternatives2, but the role of F in their electrochemical function, particularly when metals reach high formal oxidation states, remains to be ascertained so far. In our recent study3, using X-ray Absorption Spectroscopy (XAS) measurements of Mn, O and F, we revealed the existence of Mn-F covalent interactions in Li2MnO2F. The results challenged the assumption of F as largely a spectator ion, providing instead a nuanced picture of redox compensation in oxyfluorides. They suggested the existence of unique knobs of design of battery cathodes in these chemical spaces, by manipulating the covalent interactions between transition metals and two different anions. To further expand the understanding of F participation in the covalent bonding and its electrochemical effect on oxyfluoride materials, we synthesized Li2CoO2F and Li2NiO2F4. Solid fluorides of ions like Co(IV) and Ni(IV) are known to be aggressive oxidizers5. Analysis of the transition metal fluoride literature reveals that oxidation states of IV and higher could lead to unstable phases for late transition metals, particularly Co or Ni5. Unlike oxides, rather than reductively releasing F2, they have a strong propensity to act as highly oxidizing F- donors6,7, being able to oxidize even other halogen cations to their VII state. Yet the oxidation of Ni(II) features prominently in oxyfluoride cathodes that were recently discovered. This puzzle and the exact role of F in modulating the formal redox chemistry of a late metal like Ni and Co in the presence of O remains to be elucidated. To address this question and determine a periodic trend on the role of a mixture of anions in improving the energy density in such cathode materials, we conducted a deep dive into Li2CoO2F and Li2NiO2F. We interrogated the covalent interaction between the oxygen 2p states, fluorine 2p states, and the transition metal 3d orbitals, and their respective contribution to the charge compensation mechanism using XAS. These two oxyfluorides data were compared with the previous Li2MnO2F data to understand the effect of varying the transition metal and how that affects the overall electrochemistry of these materials. We also have estimated the M-O and M-F hybridization and provided a periodic trend. This study allowed us to define a rule to manipulate each element in a oxyfluoride that determines the electrochemical properties of these cathode materials. References: Bak, S. M.; Hu, E.; Zhou, Y.; Yu, X.; Senanayake, S. D.; Cho, S. J.; Kim, K. B.; Chung, K. Y.; Yang, X. Q.; Nam, K. W. ACS Appl. Mater. Interfaces 2014, 6 (24), 22594–22601. Lee, J.; Kitchaev, D. A.; Kwon, D. H.; Lee, C. W.; Papp, J. K.; Liu, Y. S.; Lun, Z.; Clément, R. J.; Shi, T.; McCloskey, B. D.; Guo, J.; Balasubramanian, M.; Ceder, G. Nature 2018, 5567700 2018, 556 (7700), 185–190. Roy, I.; Kumar, K.; Li, H.; Sunariwal, N.; Alexander, G.C.B.; Freeland, J.W.; rodolakis, F.; Cabana, J. Chem. Mater. 2023, 35, 5, 2107–2113. Xu, X.; Pi, L.; Marie, J.-J.; Rees, G. J.; Gong, C.; Pu, S.; House, R. A.; Robertson, A. W.; Bruce, P. G. J. Electrochem. Soc. 2021, 168 (8), 080521. Riedel, S.; Kaupp, M. Coord. Chem. Rev. 2009, 253 (5–6), 606–624. Bartlett, N.; Chambers, R. D.; Roche, A. J.; Spink, R. C. H.; Chacón, L.; Whalen, J. M. Chem. Comm. 1996, No. 9, 1049–1050. Lucier, G.; Shen, C.; Casteel, W. J.; Chacón, L.; Barlett, N. J. Fluor. Chem. 1995, 72 (2), 157–163.
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Wang, Zhongyang, Ge Sun, Mrinmay Mandal, Paul Kohl, Juan de Pablo, Shrayesh N. Patel, and Paul F. Nealey. "Role of Water Molecules in Enabling Site Hopping and Vehicular Transport Mechanisms in Polynorbornene-Based Anion Exchange Membrane." ECS Meeting Abstracts MA2022-02, no. 41 (October 9, 2022): 1536. http://dx.doi.org/10.1149/ma2022-02411536mtgabs.
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Role of Water Molecules in Enabling Site Hopping and Vehicular Transport Mechanisms in Polynorbornene-based Anion Exchange Membrane Zhongyang Wang, ⸹ Ge Sun ， ⸹ Mrinmay Mandal, ‡, Paul A. Kohl, ‡, Juan de Pablo, ⸹ Shrayesh N. Patel, ⸹ and Paul F. Nealey ⸹ ‡ School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia, 30332-0100, United States ⸹ Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, USA Ion exchange membranes are at the heart of electrochemical conversion and storage devices such as fuel cells 1, water electrolyzers 2, CO2 electrolyzers 3. redox flow batteries 4, and reverse electrodialysis 5. Anion exchange membrane fuel cells (AEMFCs) have attracted enormous attention as alternatives to replace perfluorinated, sulfonic acid-based proton exchange membrane fuel cells (PEMFCs) 6 because alkaline membrane electrode assemblies (MEAs) composed of anion exchange ionomers (AEIs) and AEMs that allow the use of Ni 7, 8, Fe 9, and Ag 10 based precious-group-metal (PGM) free catalysts in alkaline environments for hydrogen oxidation reactions (HORs) and oxygen reduction reactions (ORRs). However, the lack of understanding of ion transport mechanisms at different hydration levels of an anion exchange membrane hinders the rational design of the MEAs in an AEMFC. Here we investigate site hopping and vehicular transport mechanisms using anion exchange thin films, interdigitated electrodes, and atomistic molecular dynamics simulations. Halide ion (Br-, Cl- and I-) conductivities in polynorbornene-based thin films are measured as a function of temperature and relative humidity using electrochemical impedance spectroscopy. Halide ions show Arrhenius behaviors, and activation energy (Ea) is for the first time used as an indicator for detecting the transition of site hopping and vehicular transport mechanisms. Using atomistic molecular dynamics simulation, we quantitatively demonstrate that the transition of site hopping and vehicular mechanisms is aided by better solvation environments of anions and more percolated water pathways. References Z. Wang, J. Parrondo, C. He, S. Sankarasubramanian and V. Ramani, Nature Energy, 2019, 4, 281-289. S. Z. Oener, M. J. Foster and S. W. Boettcher, Science, 2020, 369, 1099-1103. D. A. Salvatore, C. M. Gabardo, A. Reyes, C. P. O’Brien, S. Holdcroft, P. Pintauro, B. Bahar, M. Hickner, C. Bae, D. Sinton, E. H. Sargent and C. P. Berlinguette, Nature Energy, 2021, 6, 339-348. K. Lin, Q. Chen, M. R. Gerhardt, L. Tong, S. B. Kim, L. Eisenach, A. W. Valle, D. Hardee, R. G. Gordon, M. J. Aziz and M. P. Marshak, Science, 2015, 349, 1529-1532. R. D. Cusick, Y. Kim and B. E. Logan, Science, 2012, 335, 1474-1477. J. Wang, Y. Zhao, B. P. Setzler, S. Rojas-Carbonell, C. Ben Yehuda, A. Amel, M. Page, L. Wang, K. Hu, L. Shi, S. Gottesfeld, B. Xu and Y. Yan, Nature Energy, 2019, 4, 392-398. G. Braesch, Z. Wang, S. Sankarasubramanian, A. G. Oshchepkov, A. Bonnefont, E. R. Savinova, V. Ramani and M. Chatenet, Journal of Materials Chemistry A, 2020, 8, 20543-20552. S. Kabir, K. Lemire, K. Artyushkova, A. Roy, M. Odgaard, D. Schlueter, A. Oshchepkov, A. Bonnefont, E. Savinova, D. C. Sabarirajan, P. Mandal, E. J. Crumlin, Iryna V. Zenyuk, P. Atanassov and A. Serov, Journal of Materials Chemistry A, 2017, 5, 24433-24443. H. Adabi, A. Shakouri, N. Ul Hassan, J. R. Varcoe, B. Zulevi, A. Serov, J. R. Regalbuto and W. E. Mustain, Nature Energy, 2021, 6, 834-843. H. Erikson, A. Sarapuu and K. Tammeveski, ChemElectroChem, 2019, 6, 73-86.
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Sree, G. Sindhu, Mamatha Shivanagappa, and Nandish Manoli. "Successful Percutaneous Mitral Valve Balloon Valvuloplasty during Third Trimester." Journal of South Asian Federation of Obstetrics and Gynaecology 9, no. 2 (2017): 182–84. http://dx.doi.org/10.5005/jp-journals-10006-1488.
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ABSTRACT Rheumatic mitral stenosis is the most common acquired valvular lesion in pregnant women. The overall mortality is 1%, but can go up to 5% in those patients with New York Heart Association class III and IV symptoms. Percutaneous mitral balloon valvuloplasty (PMBV) is the procedure of choice in the treatment of rheumatic mitral stenosis. The PMBV is usually done in the first or second trimester, but in the third trimester, PMBV is a less common procedure. A 24-year-old gravida 2 para 1 living 1 with 35 weeks of gestation with previous lower segment cesarean section (LSCS) presented with breathlessness and swelling of lower limbs. Evaluation revealed rheumatic mitral stenosis of moderate severity with moderate mitral regurgitation with cardiac failure. Hence, PMBV was done, which resulted in increase of mitral valve area from 0.6 to 1.7 cm2. She had marked symptomatic improvement, and cesarean section was done at 36 weeks 5 days for previous LSCS with preterm premature rupture of membranes. The postoperative period was uneventful. Our report reinforces the fact that third trimester PMBV is safe and effective during pregnancy with no untoward effect on the fetus. How to cite this article Shivanagappa M, Sree GS, Roy P, Manoli N. Successful Percutaneous Mitral Valve Balloon Valvuloplasty during Third Trimester. J South Asian Feder Obst Gynae 2017;9(2):182-184.
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Chari, Sharad, and Katherine Verdery. "Thinking between the Posts: Postcolonialism, Postsocialism, and Ethnography after the Cold War." Comparative Studies in Society and History 51, no. 1 (December 16, 2008): 6–34. http://dx.doi.org/10.1017/s0010417509000024.
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Lenin spoke at the Second Congress of 1920 to multiple audiences. In continuity with the First International, he spoke in the utopian language of Bolshevism, of the successful revolutionary proletariat that had taken the state and was making its place in history without the intercession of bourgeois class rule. Recognizing the limits of socialism in one country surrounded by the military and economic might of “World imperialism,” however, Lenin also pressed for a broader, ongoing world-historic anti-imperialism in alliance with the oppressed of the East, who, it seemed, were neither sufficiently proletarianized, nor, as yet, subjects of history. There are many ways to situate this particular moment in Lenin's thought. One can see the budding conceits of Marxist social history, or “history from below,” in which millions in the East could become historical subjects under the sign of “anti-imperialism.” One can also see this gesture to those outside the pale as a flourish of the emergent Soviet empire, and as a projection of anxieties about Bolshevik control over a vast and varied Russian countryside with its own internal enemies. But Lenin also spoke to audiences who would make up the next, Third International, like the Indian Marxist M. N. Roy, who saw imperialism dividing the world into oppressed and oppressor nations. For this Third Worldist audience, looking increasingly to the new Soviet Union for material and military support for “national self-determination,” Lenin extends the historic mission of a future world socialism.
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Coca Clemente, José Antonio, Maria Retuerto, Pilar Ocón, and Sergio Rojas. "The Influence of Doping in the Electrocatalytic Properties of NiFe2O4-Derived Nitrides." ECS Meeting Abstracts MA2023-02, no. 42 (December 22, 2023): 2139. http://dx.doi.org/10.1149/ma2023-02422139mtgabs.
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Transition metal nitrides (TMNs) have been widely studied in the last years due to their extraordinary properties such as high electrical conductivity and versatile physical and chemical properties. They can be easily synthesize from metal oxide precursors and, in addition, they display electrocatalytic activities similar to Pt and other conventional noble metal electrocatalysts.1 Among them, several Ni-, Co- and Fe-based nitrides have been studied as electrocatalysts for the hydrogen evolution reaction (HER), oxygen reduction reaction (ORR) and oxygen evolution reaction (OER).2–4 The combination of these metals in different proportions (stoichiometric and non-stoichiometric) can give place to a wide range of electrocatalysts with better electrochemical performance than the single metal nitrides. Apart from them, 2nd and 3rd row TMNs like Mo- and W-based nitrides can display high HER activity, surpassing those 1st row TMNs above-mentioned, therefore doping 1st row TMNs with Mo or W, even in very small amounts, can increase significantly the electrocatalytic performance of these materials.5 In this work, NiFe2O4-derived nitrides and their Mo- and W-doped versions were synthesized via the resorcinol-formaldehyde sol-gel polymerization method, followed by nitridation in ammonia atmosphere. The influence of doping for the HER, ORR and OER reactions in alkaline electrolyte has been studied. As observed, W-doping results in improved ORR and OER activities. Characterization techniques, such as XRD, TEM and XPS, are being performed in the initial and used catalysts, observing a structural change from the initial oxide (NiFe2O4) to the final nitride (NiFe2N), including the doped versions, which can help to understand their electrocatalytic properties. References: C. Das, N. Sinha, and P. Roy, Small, 18 (2022). S. H. Gage, B. G. Trewyn, C. V. Ciobanu, S. Pylypenko, and R. M. Richards, Catal Sci Technol, 6, 4059–4076 (2016). Y. Yang, R. Zeng, Y. Xiong, F. J. Disalvo, and H. D. Abruña, J Am Chem Soc, 141, 19241–19245 (2019). T. Yamaguchi, M. Sakita, M. Nakamura, and T. Kobira, J Magn Magn Mater, 215–216, 529–531 (2000). Z. Chen et al., Angewandte Chemie, 130, 5170–5174 (2018). Figure 1
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Bordonsky, Georgy S., and Alexander A. Gurulev. "О физико-химических превращениях с участием воды вблизи температуры –45 °C." Kondensirovannye sredy i mezhfaznye granitsy = Condensed Matter and Interphases 21, no. 4 (December 19, 2019): 478–89. http://dx.doi.org/10.17308/kcmf.2019.21/2359.
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Представлена гипотеза о новом механизме ускорения химических реакцийс участием переохлажденной воды вблизи –45 °C. Гипотеза основана на свойствах второйкритической точки воды. Предполагается, что возрастание флуктуации энергии молекулводы приводит к ускорению протекания химических превращений. В эксперименте сиспользованием нанопористых увлажненных силикатных сорбентов удалось наблюдатьреакцию взаимодействия водорода с поверхностью пор при –45 °C. Химические реакциис участием воды по предполагаемому механизму могут ускоренно протекать на линииВидома при температурах от –45 °C до –53 °C и в области давлений от 0 до 100 MPa.
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Luo, Fang, Aaron Roy, Moulay-Tahar Sougrati, Anastassiya Khan, David A. Cullen, Xingli Wang, Mathias Primbs, Andrea Zitolo, Frederic Jaouen, and Peter Strasser. "Operando x-Ray Absorption Spectroscopy Investigation of Secondary Metal Doping into Iron-Nitrogen-Carbon Catalysts for Oxygen Electroreduction." ECS Meeting Abstracts MA2023-02, no. 55 (December 22, 2023): 2676. http://dx.doi.org/10.1149/ma2023-02552676mtgabs.
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Oxygen reduction reaction (ORR) plays a key role in the development of fuel cell technology, and great efforts have been made to reduce the amount of platinum, required to speed up this sluggish reaction, or, even more desirable, to use efficient electrocatalysts based on earth-abundant metals. To date, numerous single-atom catalysts in the form of metal-doped carbon-nitrogen materials (MNC) have proved to be a promising alternative to ORR Pt-based materials. [1-3] In this study we employed advanced spectroscopic techniques, namely Mössbauer spectroscopy and operando X-ray absorption (XAS) spectroscopy, to understand the structural and electronic factors underlying an increase in the catalytic turn over frequency (TOF) of bimetallic FeSnNC and FeCoNC catalysts, relative to the parent FeNC materials. In particular, 57Fe Mössbauer spectroscopy identified a larger ratio of D1/D2 species in both bimetallic catalysts, supporting a larger ratio of Fe(III)-Nx/Fe(II)-Nx sites. The combination of extended X-ray absorption fine structure (EXAFS) modeling, and the analysis of operando X-ray absorption near-edge spectroscopy (XANES) spectra revealed a disordered carbon structure around FeNx active sites, and variations in the iron oxidation state that can be linked to the enhanced intrinsic catalytic reactivity (TOF). This talk is therefore intended to draw attention to the potential of the XAS technique, especially when applied to in-situ/operando studies in the field of electrocatalysis. References F. Luo, A. Roy, L. Silvioli, D.A. Cullen, A. Zitolo, M.T. Sougrati, I.C. Oguz, T. Mineva, D. Teschner, S. Wagner, J. Wen, F. Dionigi, U.I. Kramm, J. Rossmeisl, F. Jaouen and P. Strasser. P-block single-metal-site tin/nitrogen-doped carbon fuel cell cathode catalyst for oxygen reduction reaction. Nature Materials 2020, 19, 1215-1223 A. Zitolo, N. Ranjbar, T. Mineva, J. Li, Q. Jia, S. Stamatin, G.F. Harrington, S.M. Lyth, P. Krtil, S. Mukerjee, E. Fonda, F. Jaouen. Identification of catalytic sites in cobalt-nitrogen-carbon materials for the oxygen reduction reaction. Nature Communications 2017, 8(1), 957 A. Zitolo, V. Goellner, V. Armel, M. T. Sougrati, T. Mineva, L. Stievano, E. Fonda, F. Jaouen. Identification of catalytic sites for oxygen reduction in iron and nitrogen doped graphene materials. Nature Materials 2015, 14, 937-942
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Ladanyi, Marc, Sinchita Roy-Chowdhuri, Lauren Ritterhouse, Felix Sahm, Ricarda Norenberg, Kui Shen, Chi Chen, et al. "Abstract CT545: Variability in NTRK gene fusions does not appear to impact response to larotrectinib." Cancer Research 82, no. 12_Supplement (June 15, 2022): CT545. http://dx.doi.org/10.1158/1538-7445.am2022-ct545.
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Abstract Introduction: Neurotrophic tyrosine receptor kinase (NTRK) gene fusions are oncogenic drivers in various tumor types. Gene fusions arise from inter- and intrachromosomal rearrangements involving the 3’ region of the NTRK gene and the 5’ end of a fusion partner gene, leading to the expression of a constitutively active tropomyosin receptor kinase (TRK) fusion protein. Larotrectinib is a highly selective and central nervous system (CNS)-active TRK inhibitor approved for the treatment of adult and pediatric patients with TRK fusion cancer. Larotrectinib has previously demonstrated an objective response rate (ORR) of 75% in 206 patients with non-primary CNS solid tumors (Hong et al, ASCO 2021). Here, we report on the TRK fusion exon junction organization in patients with TRK fusion cancer receiving larotrectinib. Methods: Patients with non-primary CNS TRK fusion cancer treated with larotrectinib were identified from three clinical trials (NCT02122913, NCT02576431, and NCT02637687). NTRK gene fusion data were determined by local molecular testing. The testing method, NTRK gene fusions, and exon structure were extracted from the molecular pathology reports from 212 patients. The data cut-off was July 20, 2020. Results: TRK fusion exon junction data were available for 80 patients from 14 different tumor types. Median age was 47 years (range 0.5-84 years). The ORR for these patients was 82.5% (95% confidence interval [CI] 72.4-90.1). Patients had gene fusions involving NTRK1 (40%), NTRK2 (4%), or NTRK3 (56%), a pattern similar to that seen in the larger dataset. We detected 20 different NTRK gene fusions; the most common were ETV6-NTRK3, TPM3-NTRK1, and LMNA-NTRK1 detected in 39 (49%), ten (13%), and seven (9%) patients, respectively. There were 12, three, and five different fusion partners associated with NTRK1, NTRK2, and NTRK3, respectively. The majority (12/20; 60%) of fusions were intrachromosomal rearrangement events: 8/12 (67%) related to NTRK1, 2/3 (67%) related to NTRK2, and 2/5 (40%) related to NTRK3. There were 35 different 5’/3’ gene breakpoint combinations: 3’ fusion points were located at NTRK1 exon 8 (n = 2), NTRK1 exon 9 (n = 5), NTRK1 exon 10 (n = 15), NTRK1 exon 11 (n = 6), NTRK1 exon 12 (n = 3), NTRK1 exon 13 (n = 1), NTRK2 exon 15 (n = 2), NTRK2 exon 16 (n = 1), NTRK3 exon 14 (n = 21), and NTRK3 exon 15 (n = 24). For ETV6-NTRK3 fusions, the NTRK3 fusion point was at exon 14 in ten of 11 thyroid carcinomas, but in only three of 13 salivary gland tumors. Conclusions: Among 80 patients with TRK fusion cancer, we detected 20 different NTRK gene fusions, of which 55% occurred in only one patient each. There were 36 different fusion variants. Despite the variability of the fusion structure, larotrectinib was equally efficacious. The large number of potential different fusion partners and involvement of various breakpoints highlight the need for validated and appropriate testing methodologies that are agnostic of 5’ partners and breakpoints. Citation Format: Marc Ladanyi, Sinchita Roy-Chowdhuri, Lauren Ritterhouse, Felix Sahm, Ricarda Norenberg, Kui Shen, Chi Chen, Marc Fellous, Nicoletta Brega, Cornelis M. van Tilburg, Jessica J. Lin, Marcia S. Brose, Ulrik N. Lassen, Ray McDermott, Theodore W. Laetsch, David S. Hong, Alexander Drilon, Erin R. Rudzinski. Variability in NTRK gene fusions does not appear to impact response to larotrectinib [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2022; 2022 Apr 8-13. Philadelphia (PA): AACR; Cancer Res 2022;82(12_Suppl):Abstract nr CT545.
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Olyaee, Saeed. "Ultra-fast and compact all-optical encoder based on photonic crystal nano-resonator without using nonlinear materials." Photonics Letters of Poland 11, no. 1 (April 3, 2019): 10. http://dx.doi.org/10.4302/plp.v11i1.890.
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In this paper an ultra-compact all-optical encoder is presented by using a two-dimensional photonic crystal. The designed logic gate is based on the interference effect. The proposed structure consists of several photonic crystal waveguides connected by 2 nano-resonators. The nano-resonators are designed to reduce the size of the radius of the dielectric rods. The contrast ratios and delay time for the proposed all-optical encoder are respectively 6 dB and 125 fs. The size of the structure is equal to 132 µm2. Equality of the output power in the logic states “one”, the small dimensions, the low delay time, compact and simple structure have shown that the logic gate is suitable for the using in optical integrated circuits. Full Text: PDF ReferencesA. Salmanpour, Sh. Mohammadnejad, A. Bahrami, "Photonic crystal logic gates: an overview", Optical and Quantum Electronics. 47, 2249 (2015). CrossRef S. C. Xavier, B. E. Carolin, A. p. Kabilan, W. Johnson, "Compact photonic crystal integrated circuit for all-optical logic operation", IET Optoelectronics. 10, 142 (2016). CrossRef Y. Miyoshi, K. Ikeda, H. Tobioka, T. Inoue, S. Namiki, K. Kitayama, "Ultrafast all-optical logic gate using a nonlinear optical loop mirror based multi-periodic transfer function", Optics Express. 16, 2570 (2008). CrossRef D. K. Gayen, A. Bhattachryya, T. Chattopadhyay, J. N. Roy, "Ultrafast All-Optical Half Adder Using Quantum-Dot Semiconductor Optical Amplifier-Based Mach-Zehnder Interferometer", Journal of Lightwave Technology. 30, 3387 (2012). CrossRef A. Mohebzadeh-Bahabady, S. Olyaee, "All-optical NOT and XOR logic gates using photonic crystal nano-resonator and based on an interference effect", IET Optoelectronics. 12, 191 (2018). CrossRef Z. Mohebbi, N. Nozhat, F. Emami, "High contrast all-optical logic gates based on 2D nonlinear photonic crystal", Optics Communications. 355, 130 (2015). CrossRef M. Mansouri-Birjandi, M. Ghadrdan, "Full-optical tunable add/drop filter based on nonlinear photonic crystal ring resonators", Photonics and Nanostructures-Fundamentals and Applications. 21, 44 (2016). CrossRef H. Alipour-Banaei, S. Serajmohammadi, F. Mehdizadeh, "Effect of scattering rods in the frequency response of photonic crystal demultiplexers", Journal of Optoelectronics and Advanced Materials. 17, 259 (2015). DirectLink A. Mohebzadeh-Bahabady, S. Olyaee, H. Arman, "Optical Biochemical Sensor Using Photonic Crystal Nano-ring Resonators for the Detection of Protein Concentration", Current Nanoscience. 13, 421 (2017). CrossRef S. Olyaee, A. Mohebzadeh-Bahabady, "Designing a novel photonic crystal nano-ring resonator for biosensor application", Optical and Quantum Electronics. 47, 1881 (2015). CrossRef F. Parandin, R. Malmir, M. Naseri, A. Zahedi, "Reconfigurable all-optical NOT, XOR, and NOR logic gates based on two dimensional photonic crystals", Superlattices and Microstructures. 113, 737 (2018). CrossRef F. Mehdizadeh, M. Soroosh, H. Alipour-Banaei, "Proposal for 4-to-2 optical encoder based on photonic crystals", IET Optoelectronics. 11, 29 (2017). CrossRef M. Hassangholizadeh-Kashtiban, R. Sabbaghi-Nadooshan, H. Alipour-Banaei, "A novel all optical reversible 4 × 2 encoder based on photonic crystals", Optik. 126, 2368 (2015). CrossRef T. A. Moniem, "All-optical digital 4 × 2 encoder based on 2D photonic crystal ring resonators", Journal of Modern Optics. 63, 735 (2016). CrossRef S. Gholamnejad, M. Zavvari, "Design and analysis of all-optical 4–2 binary encoder based on photonic crystal", Optical and Quantum Electronics. 49, 302 (2017). CrossRef H. Seif-Dargahi, "Ultra-fast all-optical encoder using photonic crystal-based ring resonators", Photonic Network Communications. 36, 272 (2018). CrossRef S. Olyaee, M. Seifouri, A. Mohebzadeh-Bahabady, and M. Sardari, "Realization of all-optical NOT and XOR logic gates based on interference effect with high contrast ratio and ultra-compacted size", Optical and Quantum Electronics. 50, 12 (2018). CrossRef C. J. Wu, C. P. Liu, Z. Ouyang, "Compact and low-power optical logic NOT gate based on photonic crystal waveguides without optical amplifiers and nonlinear materials", Applied Optics.51, 680 (2012). CrossRef Y. C. Jiang, S. B. Liu, H. F. Zhang, X. K. Kong. "Realization of all optical half-adder based on self-collimated beams by two-dimensional photonic crystals", Optics Communications. 348, 90 (2015). CrossRef A. Salmanpour, S. Mohammadnejad, P. T. Omran, "All-optical photonic crystal NOT and OR logic gates using nonlinear Kerr effect and ring resonators", Optical and Quantum Electronics. 47, 3689 (2015). CrossRef E. H. Shaik, N. Rangaswamy, "Single photonic crystal structure for realization of NAND and NOR logic functions by cascading basic gates", Journal of Computational Electronics. 17, 337 (2018). CrossRef
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Kaushal, Akhilesh, Pritam Biswas, Jason Farrar, and Samrat Roy Choudhury. "Abstract P16: CBFA2T3-GLIS2 fusion leads to a distinct DNA methylation enhancer landscape in pediatric acute myeloid leukemia." Blood Cancer Discovery 5, no. 2_Supplement (March 4, 2024): P16. http://dx.doi.org/10.1158/2643-3249.bcdsymp24-p16.
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Abstract Pediatric acute myeloid leukemia (pAML) patients with CBFA2T3-GLIS2 fusions (C/G) have one of the worst clinical outcomes among all pAML subtypes, with poor responses to induction therapy, a high rate of relapse (around 90%), and 5-year survival rates of less than 20%. Although C/G is known to disrupt the balance of ERG-GATA1 transcription factors and de novo super-enhancer (SE) activities, the specific mechanisms by which this fusion protein rearranges DNA methylation (DNAm) to alter enhancer-transcriptional programs are still unknown. In this study, we analyzed the expression of C/G-specific SE-associated genes (n=829, Thirant et al., 2017) in C/G pAML (n=40) compared to normal bone marrow samples (n=71) and other major fusion subgroups of pAML (n=1476) using a published RNA sequencing dataset (Smith et al., 2020). The C/G-SE-associated genes with significantly different (log2FC, ≥±1) expression levels in patient specimens were analyzed for altered DNAm using the Infinium Methylation EPIC v2.0 BeadChip array in C/G+ M-07e cells, compared to CD34+ hematopoietic stem progenitor cells. We observed two groups of SE-associated genes that were differentially upregulated (n=27) or downregulated (n=15) in primary C/G-pAML samples. The C/G-SE-associated genes include BMP2, MED12L, GATA2, and ERG, which have previously been shown to play critical roles in the disease. The differentially expressed genes were primarily enriched for the TGF-β signaling, allograft rejection, and IL6-JAK-STAT3 signaling pathways as predicted by the hallmark MSigDB. The majority of the differentially methylated CpGs (mC) were hypermethylated (~82%) at the promoter region, while the ratio of hypermethylated to hypomethylated mC was nearly equal at the body (0.9) and intergenic regions (0.85). Of the 27 differentially upregulated C/G-SE-associated genes, 18 were hypermethylated, and 3 were hypomethylated at the promoters. Conversely, out of the 15 differentially downregulated C/G-SE-associated genes, 7 were hypermethylated, and 2 were hypomethylated at the promoters. To further investigate the propensity of hypermethylation at these promoters, we evaluated the expression of DNA methyltransferases (DNMT) and found that the C/G binds to the proximal promoters of DNMT1 and DNMT3B, which is consistent with the overexpression of these genes in primary C/G pAML samples. Finally, we generated a CRISPR knockout of DNMT3B in M-07e cells, which led to a decrease in the expression of DNMT3B target genes, including 2 C/G-SE-associated genes (TIMP3, TPSAB1) and reduced cell viability. Our findings demonstrate that the C/G fusion upregulates DNMT1 and DNMT3B to establish a hypermethylated landscape supporting leukemic enhancer-transcriptional programs. Future studies will provide deeper insights into the role of these methylated enhancers in maintaining leukemic phenotype, which could be targeted by combining inhibitors of DNA-methyltransferases and histone acetyltransferases. Citation Format: Akhilesh Kaushal, Pritam Biswas, Jason Farrar, Samrat Roy Choudhury. CBFA2T3-GLIS2 fusion leads to a distinct DNA methylation enhancer landscape in pediatric acute myeloid leukemia [abstract]. In: Proceedings of the Blood Cancer Discovery Symposium; 2024 Mar 4-6; Boston, MA. Philadelphia (PA): AACR; Blood Cancer Discov 2024;5(2_Suppl):Abstract nr P16.
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Miranda, Kátia Aparecida da Silva Nunes, Solange Maria de Barros, and Juliano Cláudio Alves. "Ações socioeducativas em tempos de pandemia (Socio-educational actions in times of pandemic)." Revista Eletrônica de Educação 15 (March 24, 2021): e4725039. http://dx.doi.org/10.14244/198271994725.
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e4725039In this article, we propose to critically reflect on public policies aimed at socio-education in times of pandemic caused by the coronavirus (Covid-19). We also propose to show what measures are being taken by the federal and state governments to mitigate the socio-educational problem. The work is anchored in Paulo Freire's critical and humanistic pedagogy, in Roy Bhaskar's critical realism and in the conception of socio-education coined by Antônio Carlos Gomes da Costa, as a way of understanding and, consequently, finding ways to act in favor of groups that are socially in situation of deprivation of liberty. It concludes by the need to seek (re) construction of public policies that guarantee the effective socio-educational assistance to these young people, which is seen to be possible through joint actions involving various political and social actors, based on the principle of institutional incompleteness.ResumoNeste artigo, propomos refletir criticamente acerca das políticas públicas destinadas à socioeducação em tempos de pandemia causada pelo coronavírus (Covid-19). Propomos ainda mostrar quais são as medidas que estão sendo tomadas pelos governos federal e estadual para mitigar o problema socioeducativo. O trabalho está ancorado na pedagogia crítica e humanística de Paulo Freire, no realismo crítico de Roy Bhaskar e na concepção de socioeducação cunhada por Antônio Carlos Gomes da Costa, como forma de compreender e, consequentemente, de encontrar meios de agir em favor de grupos que estão socialmente em situação de privação de liberdade. Conclui-se pela necessidade de buscar a (re)construção de políticas públicas que garantam o efetivo atendimento socioeducativo a esses jovens, o que se vislumbra ser possível a partir de ações conjuntas envolvendo diversos atores políticos e sociais, a partir do princípio da incompletude institucional.Palavras-chave: Socioeducação de jovens, Situação de privação de liberdade, Políticas Públicas, Transformação social.Keywords: Youth socio-education, Restriction and deprivation of liberty, Public policy, Social transformation.ReferencesBARROS, Solange Maria de. Análise crítica do discurso e realismo crítico: reflexões interdisciplinares. Polifonia, vol. 17, p. 141-157. Cuiabá-MT: EdUFMT, 2009.BARROS, Solange Maria de. Realismo crítico e emancipação humana: contribuições ontológicas e epistemológicas para os estudos críticos do discurso. Campinas: Pontes Editora, 2015.BARROS, Solange Maria de; MATTOS, Norma Gisele de. Formação crítico-reflexiva de uma educadora de escola pública: entre o pensar e o fazer. Revista ECOS, v. 15, p. 295-324, 2013.BARROS, S. M. Formação Crítica do educador de línguas: por uma política emancipatória e de transformação social. In: BARROS, S. M. ASSIS PETERSON, A. A. (org.) Formação de professores de línguas: desejos e possibilidades. São Carlos, SP: Pedro e João Editores, 2010.BHASKAR, Roy. Critical Realism. Essential Readings. In: ARCHER, M.; BHASKAR, R.; COLLIER, A.; LAWSON, T. e NORRIE, A. Centre for Critical Realism. London: Routledge, 1998.BHASKAR, Roy. From Science to Emancipation. Alienation and the Actuality of Enlightenment. New Delhi/London: Sage Publications, 2002.BHASKAR, Roy. The Philosophy of metaReality: creativity, love, and freedom. Reprint. London: Routledge, 2012.BRASIL. Congresso Nacional. Estatuto da Criança e do Adolescente (ECA). Lei Federal 8.069, de 13 de julho de 1990. Brasília, 1990. Disponível em: http://www.planalto.gov.br/ccivil_03/leis/l8069.htm. Acesso em: 21 out. 2019.BRASIL. Lei n. 12.594, de 18 de janeiro de 2012. Institui o Sistema Nacional de Atendimento Socioeducativo – SINASE, Brasília, 18/01/2012. Disponível em: http://www.planalto.gov.br/ccivil_03/_Ato2011-2014/2012/Lei/L12594.htm. Acesso em: 21 out. 2019.BRASIL. Cadastro Nacional de Adolescentes em Conflito com a Lei – CNACL. Conselho Nacional de Justiça. Poder Judiciário. Brasília: CNJ/2019. Disponível em: https://www.cnj.jus.br/cnaclnovo/publico/. Acesso em: 20 out. 2019.BRASIL. CNJ. Conselho Nacional de Justiça. Orientação técnica para inspeção pelo Poder Judiciário dos espaços de privação de liberdade no contexto da pandemia. 2020a.BRASIL. CONANDA. Conselho Nacional dos Direitos da Criança e do Adolescente. Recomendações do CONANDA para a proteção integral a crianças e adolescentes durante a pandemia do covid-19. 2020b.COSTA, Antônio Carlos Gomes da. Pedagogia da Presença: da Solidão ao Encontro. Belo Horizonte: Modus Faciendi, 1999.COSTA, Antônio Carlos Gomes da. Socioeducação: estrutura e funcionamento da comunidade educativa. Secretaria Especial de Direitos humanos. Subsecretaria dos Direitos da Criança e do Adolescente, abr. 2004.FREIRE, Paulo. Extensão ou comunicação. Rio de Janeiro: Paz e Terra, 1985.FREIRE, Paulo. Pedagogia da autonomia: saberes necessários à prática educativa. São Paulo: Paz e Terra, 1992.FREIRE, Paulo. Pedagogia do Oprimido. Rio de Janeiro: Paz e Terra, 2005.GADOTTI, Moacir. Educação Popular, Educação social, Educação Comunitária: conceitos e práticas diversas, cimentadas por uma causa comum. Revista Diálogos: pesquisa em extensão universitária. IV Congresso Internacional de Pedagogia Social: domínio epistemológico, 18 (1), 10-32, 2012.JULIÃO, E.F. Educação de Jovens e Adultos em situação de restrição e privação de liberdade: Questões, Avanços e Perspectivas. Jundiaí-SP: Paco Editorial, 2013.MAKARENKO, Anton Semyonovich. Poema Pedagógico. 3 vols. Brasília: Ed. Brasiliense, 1983 (disponível apenas em bibliotecas Conferências sobre Educação Infantil, Anton Makarenko, E. Moraes, 1981).MARASCHIN, Cleci; RANIERE, Édio. Socioeducação e Identidade: onde se utiliza Foucault e Varela para pensar o Sinase. Revista Katálysis. Florianópolis, v. 14, n. 1, p. 95-103, jan/jun, 2011.MATO GROSSO. Governo do Estado de Mato Grosso. Plano Decenal de Atendimento Socioeducativo do Estado de Mato Grosso: 2014-2024. Cuiabá-MT: Governo do Estado de Mato Grosso, 2014NUÑES, Violeta. Pedagogia social: cartas para navegar em el novo milenio. Buenos Aires: Ediciones Santillana S.A, 1999.OUTHWAITE, William. Toward a Realist Perspective. In: G. Morgan (ed.). Beyond Method: Strategies for Social Research. London: Sage, 1983.PAES, Paulo. O socioeducador. In: PAES, P. AMORIM, S. PEDROSSINA, D. (orgs.). Formação continuada de socioeducadores. Campo Grande: Programa Escola de Conselhos, 2008. p. 81-97.PNUD. Programa das Nações Unidas para o Desenvolvimento 2018. Disponível em: https://www.br.undp.org/content/brazil/pt/home/library/idh/relatorios-de-desenvolvimento-humano/relatorio-do-desenvolvimento-humano-2018.html. Acesso em: 21 out. 2019.RANIERE, Édio. A invenção das medidas socioeducativa. 2014. 196 f. Tese (Doutorado em Psicologia Social e Institucional). Universidade Federal do Rio Grande do Sul. Porto Alegre: Biblioteca Setorial do Instituto de Psicologia, 2014.RIBEIRO, Paulo Rennes Marçal. Educação Escolar no Brasil: Problemas, Reflexões e Propostas. Coleção Textos, Vol. 4. Araraquara-SP: UNESP, 1990.SANTOS, Antônio Raimundo dos. Metodologia Científica: a construção do conhecimento. Rio de Janeiro: DPA, 2000.VANDENBERGHE, Frédéric. Teoria Social Realista. Um diálogo franco-britânico. Belo Horizonte: Ed. UFMG, 2010.ZANELLA, Maria Nilvane. 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Romanova, Natalia G., and Keemya V. Orlova. "PRESENTATION OF THE COLLECTIVE MONOGRAPH “COMINTERN AND THE EAST: TO THE 100TH ANNIVERSARY OF THE FOUNDATION OF THE COMINTERN” IN THE INSTITUTE OF ORIENTAL STUDIES, RAS." Journal of the Institute of Oriental Studies RAS, no. 1 (19) (2022): 245–51. http://dx.doi.org/10.31696/2618-7302-2022-1-245-251.
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The collective monograph “Comintern and the East: To the 100th Anniversary of the Foundation of the Comintern” focuses on the activities of the Comintern in the Eastern countries. Based on the newly discovered documents and materials from Russian and foreign archives, the collective of authors proposes to look at the events of the early 20th century from the perspective of the 21st century, and to expand the understanding of the place and role of the Communist International in the context of internal political, geopolitical, economic, national liberation processes as well as the main directions of its policy. Presented monograph is based on the talks of the international academic conference “The Comintern and the East: To the 100th Anniversary of the Foundation of the Comintern”, organized by the Institute of Oriental Studies of the Russian Academy of Sciences. The book consists of five sections. The first section opens with the studies on the relationship of the Comintern and the first Middle Eastern Communist Parties in Egypt, Palestine, Lebanon, Syria, and Iran. The second section researches the relationship of the Comintern with the countries of the Far East: Japan, China, and Korea. The third section analyzes the role of the Comintern in the history of Russian / Soviet-Mongolian relations in the 1920s — early 1930s. The fourth section extensively covers materials on the liberation movement in India, where M. N. Roy, Mahatma Gandhi, Jawaharlal Nehru and others played prominent roles. The fifth section contains studies about the relationship between the leaders of the Comintern and the Communist Party of Great Britain in 1920–1924.
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Rudzinski, Erin R., Marc Ladanyi, Lauren L. Ritterhouse, Felix Sahm, Ricarda Norenberg, Hong Zheng, Chi Chen, et al. "Abstract CT228: Concordance between tissue and circulating tumor DNA (ctDNA) testing for neurotrophic tyrosine receptor kinase (NTRK) gene fusions in larotrectinib (laro) clinical trials." Cancer Research 83, no. 8_Supplement (April 14, 2023): CT228. http://dx.doi.org/10.1158/1538-7445.am2023-ct228.
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Abstract Background: NTRK gene fusions are oncogenic drivers in various tumor types. Laro, a highly selective and central nervous system (CNS)-active tropomyosin receptor kinase (TRK) inhibitor, is approved for the treatment of patients (pts) with TRK fusion cancer. Laro demonstrated an objective response rate (ORR) of 69% in 244 pts with solid (non-primary CNS) tumors (Drilon et al. ASCO 2022). Here, we report on the concordance between baseline local tissue-based testing with central tissue-based and liquid biopsy-based ctDNA testing to identify NTRK gene fusions. Methods: Pts with non-primary CNS TRK fusion cancer who underwent independent review committee assessments by July 15, 2019, in three laro clinical trials (NCT02122913, NCT02576431, and NCT02637687) were included. Tumor NTRK gene fusion status was determined locally by a variety of methods, and centrally by next-generation sequencing in both tissue (using Illumina TruSight™ Oncology Comprehensive) and ctDNA (using Guardant360® or GuardantOMNI®) at baseline. Data cut-off: July 20, 2021. Results: Of the 164 pts with NTRK fusions identified by local testing, 117 had evaluable tissue samples for central testing, and 99 had evaluable liquid biopsy samples. In total, 81.2% (95/117) of tumors had the fusion confirmed by central tissue testing. ctDNA testing detected NTRK gene fusions in 33.3% (33/99) of patients. Positive predictive values for each NTRK gene fusion are shown in the Table. The ORR for pts with NTRK gene fusions determined by local and central testing will be presented. Conclusions: A high proportion of tumors with locally identified NTRK gene fusions were confirmed centrally. At present, analysis of ctDNA is significantly less sensitive at detecting NTRK gene fusions. A negative ctDNA result requires next-generation sequencing testing of a tissue biopsy. Further research is needed to improve the sensitivity of ctDNA gene fusion detection. Table NTRK gene fusion Tissue-based LT Tissue-based CT ctDNA-based CT with LB Fusion confirmed, n Fusion confirmed, n Fusion not detected, n Unavailable samples, n† PPV‡: CT vs tissue-based LT, % Fusion confirmed, n Fusion not detected, n Unavailable samples, n† PPV‡: LB vs tissue-based LT, % NTRK1 68 35 14 19 71.4 20 34 14 37.0 NTRK2 4 3 1 0 75.0 0 4 0 0 NTRK3 92§ 57 7 28 89.1 13 28 51 31.7 †Includes no sample available and sample QC failed. ‡Calculated as a percentage of the number of confirmed fusions over the number of available samples. §Includes 9 inferred NTRK3 fusions. CT, central testing; ctDNA, circulating tumor DNA; LB, liquid biopsy; LT, local testing; NTRK, neurotrophic tyrosine receptor kinase; PPV, positive predictive value; QC, quality control. Citation Format: Erin R. Rudzinski, Marc Ladanyi, Lauren L. Ritterhouse, Felix Sahm, Ricarda Norenberg, Hong Zheng, Chi Chen, Vadim Bernard-Gauthier, Nicoletta Brega, Cornelis M. van Tilburg, Jessica J. Lin, Marcia S. Brose, Ulrik N. Lassen, Ray McDermott, Theodore W. Laetsch, David S. Hong, Alexander Drilon, Sinchita Roy-Chowdhuri. Concordance between tissue and circulating tumor DNA (ctDNA) testing for neurotrophic tyrosine receptor kinase (NTRK) gene fusions in larotrectinib (laro) clinical trials [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2023; Part 2 (Clinical Trials and Late-Breaking Research); 2023 Apr 14-19; Orlando, FL. Philadelphia (PA): AACR; Cancer Res 2023;83(8_Suppl):Abstract nr CT228.
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Wang, Y. J., Y. Y. He, Z. Xie, and L. Q. Zhang. "First Report of Crown Gall, Caused by Agrobacterium tumefaciens on Soapberry (Sapindus delavayi) in China." Plant Disease 97, no. 5 (May 2013): 685. http://dx.doi.org/10.1094/pdis-10-12-0988-pdn.
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Soapberry (Sapindus delavayi (Franch.) Radlk.,) plants are widely grown as shade trees in the subtropical to tropical regions of China. In July 2011, large, aerial galls were observed on the above-ground trunks of 5-year-old soapberry plants in two commercial nursery gardens located in Zhejiang Province. Disease incidence was estimated to be 75%. The galls varied in weight from 2 to 24 g and in texture from soft and spongy to hard, and in some cases, the galls completely girdled the trunk. The trees with galls exhibited poor growth compared with healthy trees. Isolations from the grinded and macerated galls yielded nearly pure white, circular, and glistening bacterial colonies on Roy Sauer medium (2). Six random colonies from different galls were selected for bacterial identification, and showed the same morphological, physiological, and biochemical characters and 16S rDNA sequences. All six isolates (isolate SD01 to SD06) were gram negative, rod-shaped bacteria. Carbon source utilization testing with the Biolog GN Bacterial Identification System (version 3.50) confirmed the bacteria as Agrobacterium tumefaciens with a similarity of 0.90. The most-parsimonious tree from the maximum parsimony analysis (PHYLIP package, version 3.68, 500 replicates) of bacterial 16S rDNA gene sequences showed that A. tumefaciens SD01 (GenBank Accession No. JX997939) clustered phylogenetically most closely (99.5% similarity) with A. tumefaciens C58 (AE007870.2). Pathogenicity was confirmed by injecting 3- to 5-week old tomato and sunflower plants and 2-year-old soapberry with approximately 5 μl of the bacterial suspension (108 CFU/ml) in sterile, distilled water. Sterile distilled water was used as a negative control. Ten plants of each treatment were inoculated. Inoculated plants were then transferred to a greenhouse at 25°C. Typical tumors developed at the inoculation sites on tomatoes and sunflower plants 3 weeks after inoculation and on soapberry 6 weeks after inoculation. No symptoms were observed on the control plants. The bacteria that were readily reisolated from the inoculated plants exhibited the same morphological, physiological characters and 16S rDNA sequence as the original culture and were confirmed as A. tumefaciens, fulfilling Koch's postulates. A. tumefaciens is endemic to China and has a very wide host range (1). However, crown gall of soapberry has never been found in China and other countries. To our knowledge, this is the first report of A. tumefaciens on soapberry plants in China. References: (1) M. A. Escobar and A. M. Dandekar. Trends Plant Sci. 8:380, 2003. (2) L. W. Moore et al. Page 17 in: Laboratory Guide for Identification of Plant Pathogenic Bacteria. 3rd ed. N. W. Schaad et al., eds. The American Phytopathological Society, St. Paul, MN, 2001.
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Stephen, Samuel, Barbara Johnston, and Peter Johnston. "Comparing lattice Boltzmann simulations of periodic fluid flow in repeated micropore structures with longitudinal symmetry and asymmetry." ANZIAM Journal 63 (June 21, 2022): C69—C83. http://dx.doi.org/10.21914/anziamj.v63.17158.
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Pumping of a particulate suspension back and forth through a membrane of periodic axisymmetric pores results in no net flow of the fluid; however, the particles are transported along the pores from one side of the membrane to the other. The movement of the particles is dependent on the geometry of the pore walls. Current simulations for this problem utilise standard computational fluid dynamics techniques (e.g. finite element method, boundary element method). However, there are difficulties associated with applying these techniques to this problem, such as the requirement of many spatial periods. The lattice Boltzmann method overcomes these disadvantages by utilising periodic boundary conditions, which are straightforward to implement. Flow simulations in longitudinally symmetric and asymmetric pores with various Reynolds numbers are compared. The importance of pore shape and viscous effects is showcased through streamline plots. References P. L. Bhatnagar, E. P. Gross, and M. Krook. A model for collision processes in gases. I. Small amplitude processes in charged and neutral one-component systems. Phys. Rev. 94.3 (1954), p. 511. doi: 10.1103/PhysRev.94.511 W. R. Bowen and F. Jenner. Theoretical descriptions of membrane filtration of colloids and fine particles: An assessment and review. Adv. Colloid Interface Sci. 56 (1995), pp. 141–200. doi: 10.1016/0001-8686(94)00232-2 S. Chen and G. D. Doolen. Lattice Boltzmann method for fluid flows. Ann. Rev. Fluid Mech. 30 (1998), pp. 329–364. doi: 10.1146/annurev.fluid.30.1.329 R. L. C. Cisne, T. F. Vasconcelos, E. J. R. Parteli, and J. S. Andrade. Particle transport in flow through a ratchet-like channel. Microfluid. Nanofluid. 10 (2011), pp. 543–550. doi: 10.1007/s10404-010-0688-y J. A. Deiber and W. R. Schowalter. Flow through tubes with sinusoidal axial variations in diameter. AIChE J. 25.4 (1979), pp. 638–645. doi: 10.1002/aic.690250410 N. Islam. Fluid flow and particle transport through periodic capillaries. Bull. Aust. Math. Soc. 96.3 (2017), pp. 521–522. doi: 10.1017/S0004972717000739 C. Kettner, P. Reimann, P. Hänggi, and F. Müller. Drift ratchet. Phys. Rev. E 61.1 (2000), p. 312. doi: 10.1103/PhysRevE.61.312 S. H. Kim and H. Pitsch. A generalized periodic boundary condition for lattice Boltzmann method simulation of a pressure driven flow in a periodic geometry. Phys. Fluids 19.10 (2007), p. 108101. doi: 10.1063/1.2780194 T. Krüger, H. Kusumaatmaja, A. Kuzmin, O. Shardt, G. Silva, and E. M. Viggen. The lattice Boltzmann method: Principles and practice. Vol. 10. Graduate Texts in Physics. Springer International Publishing, 2017, pp. 978–3. doi: 10.1007/978-3-319-44649-3. G. Leneweit and D. Auerbach. Detachment phenomena in low Reynolds number flows through sinusoidally constricted tubes. J. Fluid Mech. 387 (1999), 129–150. doi: 10.1017/S0022112099004619 M. Sakthivel and K. Anupindi. An off-lattice Boltzmann method for blood flow simulation through a model irregular arterial stenosis: The effects of amplitude and frequency of the irregularity. Phys. Fluids 33.3 (2021), p. 031912. doi: 10.1063/5.0044948 T. Sikdar, N. J. Pinky, A. Roy, S. S. Hossain, and N. Islam. Oscillating flow of viscous incompressible fluid through sinusoidal periodic tube at low Reynolds number. Int. J. Fluid Mech. Therm. Sci. 6.1 (2020), pp. 9–18. doi: 10.11648/j.ijfmts.20200601.12 J. G. Zhou. Axisymmetric lattice Boltzmann method revised. Phys. Rev. E 84.3 (2011), p. 036704. doi: 10.1103/PhysRevE.84.036704
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Dharmawati, I. Gusti Agung Ayu, Nur Habibah, I. Gusti Agung Ayu Putu Swastini, and Heri Setiyo Bekti. "Antibacterial Potential of Spondias pinnata (L.f) kurz Leaf Ethanol Extract against Streptococcus mutans Bacterial Growth." Biomedical and Pharmacology Journal 15, no. 3 (September 29, 2022): 1647–51. http://dx.doi.org/10.13005/bpj/2502.
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