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Auteur : Grafiati

Publié le 25 mai 2024

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1

Chapny, Ηelen V. « The Influence of Neurosciences on Understanding the Bodily Conditioning of Cognitive Processes : a Socio-Anthropological Aspect ». RUDN Journal of Philosophy 27, n^o 4 (15 décembre 2023) : 940–56. http://dx.doi.org/10.22363/2313-2302-2023-27-4-940-956.

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The study presents a conceptual analysis of the main approaches to the study of the human brain and consciousness from the standpoint of modern domestic and foreign neuroscience. Relevant interpretations of such problematic issues and concepts as “the boundary of the human body”, “embodied knowledge”, “general artificial intelligence”, “self”, etc. From the standpoint of a body-oriented approach, the problem of co-evolution of the body, consciousness, technology and social environment is considered. The idea of the body as an artifact is updated in the context of technological change in human nature, which entails the elimination of the living human body. On the example of the Homeric epic, it is shown that attempts to overcome vulnerability demonstrate one of the fundamental human needs. The realization of the need to expand and push the boundaries of the body in the anthropotechnological environment is presented in the form of a cyborg. It is suggested that, in terms of content, the idea of the “embodied mind”, as well as the project of creating a Hybrid reality and pan-communication, stem from the immanent human need for bodily involvement in the surrounding world. The features of the creation of Artificial Intelligence and Artificial General Intelligence at the present stage are revealed. The expediency of studying the results of neuroscientific comprehension of the organization of mental processes, first of all, in the field of visualization of brain processes and the mapping method, is noted. The main modern projects for the study of the brain, as well as the most effective methods for obtaining data on brain structures, are considered. The actual results of the research are described in such areas of neuroscience as: the study of mirror neurons and their systems; “reading the brain”, the study of neural correlates of consciousness. The results of studies of representatives of domestic neuroscience are presented. The human “I” is considered as a unique structure of the Ego-system of the brain (“self”). In conclusion, a conclusion is made about the significant influence of modern neuroscience on understanding the features of the functioning of the human brain, consciousness and cognitive processes; the effectiveness of applying the body-oriented approach to comprehending the integrity of “body-consciousness-technologies-social environment” is revealed.

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Essersi, Amel, Ridha Touati et Bechir Hassine. « Diastereoselective Synthesis of γ-Phthalimido-β-Hydroxy Esters and N-Protected 4-Amino-1,3-Diols Starting from Natural α-Amino Acids ». Letters in Organic Chemistry 7, n^o 1 (1 janvier 2010) : 69–72. http://dx.doi.org/10.2174/157017810790533869.

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Arroyo Chávez, Dayan, Maryori Riquez Julca et Cristian Adriano Rengifo. « Construcción y validación del Cuestionario de Violencia de Pareja en jóvenes de Lima Este ». Revista Científica de Ciencias de la Salud 13, n^o 1 (1 octobre 2020) : 49–58. http://dx.doi.org/10.17162/rccs.v13i1.1346.

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Objetivo: construir y evaluar de las propiedades psicométricas de un instrumento que evalúa ladinámica de pareja dentro de una relación de jóvenes entre las edades de 18 y 30 años. Metodología:Después de realizar una estricta revisión teórica y haber definido el constructo, se elaboró elCuestionario de Violencia de Parejas en Jóvenes, con 29 ítems, con sus 5 factores: factor 1 ViolenciaFísica (10 ítems), factor 2 Manipulación (5 ítems), factor 3 Violencia Verbal (6 ítems), factor 4 Coerción(3 ítems); por último, el factor 5 Prohibiciones (5 ítems); con un tipo de respuesta dicotómica y Likertde cinco puntos. Fue administrado a 355 jóvenes residentes de Lima- Este. Para evaluar la validez deconstructo se hizo mediante el Análisis Factorial Exploratorio, utilizando el método de componentesparalelos con rotación oblimin y la normalización Kaiser-Meyer-Olkin (KMO). Resultados: se obtuvoun KMO de .937, con una significancia de .001; la rotación indicó que cinco factores se ajustanadecuadamente, con pesos factoriales dentro del rango de .350 a .623, que representa el 53.5% dela varianza. Asimismo, se obtuvo un alfa de Cronbach de .943 y un omega de McDonald´s .947 en laescala global; así también, en los ítems se evidencia coeficientes de Cronbach que varían entre .940 a.942 y en el McDonald´s .944 a .946, lo que indica una elevada fiabilidad. Conclusión: el instrumentoevidencia una buena consistencia interna y validez de constructo.

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Sawada, Daisuke, Yuya Tsukuda, Kaori Yasuda, Toshiyuki Sakaki, Hiroshi Saito, Ken-ichiro Takagi, Kazuya Takenouchi, Tai C. Chen, G. Satyanarayana Reddy et Atsushi Kittaka. « Synthesis and Biological Activities of 1^|^#945;,4^|^#945;,25- and 1^|^#945;,4^|^#946;,25-Trihydroxyvitamin D3 and Their Metabolism by Human CYP24A1 and UDP-Glucuronosyltransferase ». Chemical and Pharmaceutical Bulletin 60, n^o 10 (2012) : 1343–46. http://dx.doi.org/10.1248/cpb.c12-00526.

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Korzycka-Zaborowska, B., JM Hopkin et P. Górski. « Genetic variants of FcεRIβand Il-4 and atopy in a Polish population ». Allergologia et Immunopathologia 32, n^o 2 (1 mars 2004) : 53–58. http://dx.doi.org/10.1157/13059844.

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H. Mahadeswaraswamy, Y., B. Manjula, S. Devaraja, K. S. Girish et K. Kemparaju. « Daboia russelli Venom Hyaluronidase : Purification, Characterization and Inhibition by β-3-(3-Hydroxy-4-Oxopyridyl) α-Amino-Propionic Acid ». Current Topics in Medicinal Chemistry 11, n^o 20 (1 octobre 2011) : 2556–65. http://dx.doi.org/10.2174/156802611797633410.

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Milen, Matyas, Peter Abranyi-Balogh, Andras Dancso, Gyula Simig et Gyorgy Keglevich. « Reaction of 3,4-Dihydro-β-Carbolines with 4-Fluorophenyl-Nitrile Oxide ». Letters in Organic Chemistry 7, n^o 5 (1 juillet 2010) : 377–82. http://dx.doi.org/10.2174/157017810791514913.

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Huang, G. « A Facile Synthesis of 4-Methylumbelliferyl (1-->3)-β-D-Pentaglucoside ». Letters in Drug Design & ; Discovery 5, n^o 6 (1 septembre 2008) : 362–63. http://dx.doi.org/10.2174/157018008785777298.

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Kamal, Ahmed, B. Kumar, M. Arifuddin et Sunanda Dastidar. « Synthesis and Biological Activity of New 4β-N-Heteroaryl Analogues of Podophyllotoxin ». Letters in Drug Design & ; Discovery 3, n^o 3 (1 avril 2006) : 205–9. http://dx.doi.org/10.2174/157018006776286907.

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Minor, Thomas X., Nadeem U. Rahman et Tom F. Lue. « 946 : Management of Penile Fracture in Men with Peyronie's Disease ». Journal of Urology 173, n^o 4S (avril 2005) : 256. http://dx.doi.org/10.1016/s0022-5347(18)35102-4.

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Xu, Li-Wen, Lei Yang, Wei Sun et Chun-Gu Xia. « Zr(OTf)4-Catalyzed Direct Three-Component Mannich-Type Reaction of Carbamates : An Efficient One-Step Synthesis of N-Protected β- Aryl-β ; -Amino Ketones ». Letters in Organic Chemistry 5, n^o 1 (1 janvier 2008) : 34–37. http://dx.doi.org/10.2174/157017808783330270.

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Uribe Uribe, Luis Javier. « Reseña Bibliografica ». Cuadernos Latinoamericanos de Administración 6, n^o 10 (6 février 2016) : 119–23. http://dx.doi.org/10.18270/cuaderlam.v6i10.1067.

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NUEVA HISTORIA ECONÓMICA DE COLOMBIA / SALOMÓN KALMANOVITZ, EDITOR. Con la colaboración de EDWIN LÓPEZ RIVERA, ENRIQUE LÓPEZ ENCISO, CARLOS BRANDO, CARLOS ALBERTO JAIMES, JOSÉ VIDAL CASTAÑO; TAURUS HISTORIA. 1ª Edición en Colombia, Marzo de 2010, 360 páginas. ISBN 978-958-704-940-4

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Dorababu, Atukuri, Ravindra Kamble, Pramod Kattimani, Mahadevappa Kariduraganavar et Atulkumar Kamble. « Ceric Ammonium Nitrate Catalysed Stereoselective Synthesis of β-Aminoketones Using 3-Aryl-4-Formylsydnones ». Letters in Organic Chemistry 11, n^o 4 (février 2014) : 244–49. http://dx.doi.org/10.2174/1570178611999140221163716.

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Yamamura, Masaomi, Takefumi Hattori, Shiro Suzuki, Daisuke Shibata et Toshiaki Umezawa. « Microscale thioacidolysis method for the rapid analysis of ^|^#946;-O-4 substructures in lignin ». Plant Biotechnology 29, n^o 4 (2012) : 419–23. http://dx.doi.org/10.5511/plantbiotechnology.12.0627a.

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Fiorentino, A., C. Chiumento, A. M. Mileo et V. Fusco. « 946 poster GLIOBLASTOMA IN ELDERLY : IS ADJUVANT RADIOCHEMOTHERAPY EFFECTIVE AND FEASIBLE ? » Radiotherapy and Oncology 99 (mai 2011) : S362. http://dx.doi.org/10.1016/s0167-8140(11)71068-4.

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Malhotra, Manav, Rajiv Sharma, Ravindra Rawal, Hemraj Heer et T. Bhardwaj. « Synthesis and Characterization of 3β.-Substituted Amides of 17a-Aza-Dhomo- 4-androsten-17-one as Potent 5.α-Reductase Inhibitors and Antimicrobial Agents ». Current Topics in Medicinal Chemistry 13, n^o 16 (1 septembre 2013) : 2047–61. http://dx.doi.org/10.2174/15680266113139990131.

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Zhao, Yuan, Bing Zhang, Guixin Qin, Tao Wang, Nan Bao et Xiaodong Zhang. « Gastrointestinal Tissue Distribution of β-Conglycinin in Pigs at Different Growth Stages ». Journal of Food and Nutrition Research 3, n^o 6 (26 juin 2015) : 379–83. http://dx.doi.org/10.12691/jfnr-3-6-4.

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Li, Jing, Zhidong Hu et Qiaojuan Hu. « Isolation of the first IMP-4 metallo-β-lactamase producing Klebsiella pneumoniae in Tianjin, China ». Brazilian Journal of Microbiology 43, n^o 3 (septembre 2012) : 917–22. http://dx.doi.org/10.1590/s1517-83822012000300010.

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Guo, Y., Y. Chen et H. Ma. « Inclusion Mechanism and Heat Stability of the Complex of 4'-Hydroxychalcone and Hydroxypropyl-β-Cyclodextrin ». Tropical Journal of Pharmaceutical Research 13, n^o 12 (9 janvier 2015) : 1971. http://dx.doi.org/10.4314/tjpr.v13i12.3.

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Parker, W. B., W. R. Waud et J. A. Secrist III. « Thiarabine, 1-(4-Thio-β-D-arabinofuranosyl)cytosine. A Deoxycytidine Analog With Excellent Anticancer Activity ». Current Medicinal Chemistry 22, n^o 34 (19 novembre 2015) : 3881–96. http://dx.doi.org/10.2174/092986732234151119153534.

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Journal, Baghdad Science. « Purification and Characterization β ; - lactamase produce from local isolate Klebsiella pneumonia ». Baghdad Science Journal 6, n^o 1 (1 mars 2009) : 50–60. http://dx.doi.org/10.21123/bsj.6.1.50-60.

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Beta-lactamase was purified from local isolate Klebsiella pneumonia by several steps included precipitation with ammonium sulphate at 20-40% saturation, DEAE- ion exchange chromatography and gel filtration on Sephacryl S-200 column. The obtained purification fold and recovery were 32.66; 47.04% respectively. The characterization of the purified beta-lactamase showed that the molecular weight was about 4000 daltons as determined by gel filtration.Purified enzyme had an optimal pH of 7 for activity and an optimal stability between pH 6.5-7.5, results shows that the optimal temperature appear to be 35 ? C .During storage the enzyme retained 72% at -20 ? C and retained 25% of the activity at the same period at 4 ? C.

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Krainz, Karin, Andreas Hofinger, Thomas Dietz, Hans-Ulrich Suss, Antje Potthast et Thomas Rosenau. « Synthesis of Methyl 4-O-methyl-β-D-ribo-hex-3-ulopyranoside-1-13C and Methyl 4-O-methyl-β-D-ribo-hex-3-ulopyranoside-3-13C as Fragment Analogues of Oxidized Cellulose Units ». Letters in Organic Chemistry 7, n^o 3 (1 avril 2010) : 186–90. http://dx.doi.org/10.2174/157017810791112478.

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De-Hua, Li, Wang Ling, Gao Chun-Qing, Zhang Zhi-Guo, Feng Bao-Hua, Volker Gaebler, Liu Bai-Ning et al. « Intracavity-Doubled Self-Q-Switched Nd,Cr:YAG 946/473 nm Microchip Laser ». Chinese Physics Letters 19, n^o 4 (26 mars 2002) : 504–6. http://dx.doi.org/10.1088/0256-307x/19/4/317.

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Lim, Young-Jae, Shinsuke Nanto, Tohru Masuyama, On Fukui, Hiroshi Asanuma, Kazuhisa Kodama et Masayoshi Mishima. « 946-106 Papillary Muscle Perfusion Assessed with Myocardial Contrast Echocardiography in Humans ». Journal of the American College of Cardiology 25, n^o 2 (février 1995) : 174A. http://dx.doi.org/10.1016/0735-1097(95)92181-4.

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Pastuszko, Marian. « Szafarstwo Najświętszej Eucharystii (kanony 897-911) ». Prawo Kanoniczne 37, n^o 1-2 (15 juin 1994) : 73–161. http://dx.doi.org/10.21697/pk.1994.37.1-2.04.

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Articulus proemio, parte principali et conclusione constant. In proemio fontes iuris canonici de Sanctissima Eucharistia tractantes exponunntur et canones 897-899 Codicis luris Canonici explicantur. Pars principalis articuli in decem puncta dividitur, quia hoc in loco decem canones (ex 900-911) inveniuntur. 1. Secundum can. 900 §§ 1-2 minister Sanctissimae Eucharistiae est solus sacerdos valide ordinatus et lege canonica non impeditus. 2. Can. 901 permittit sacerdoti Missam celebranti applicare pro quibusvis fidelibus etiam defunctis. 3. Ad normam can. 903 sacerdotes peregrini litteras commendatitias sui ordinarii vel superioris religiosi secum habere debent, si Missam celebrare velint extra suam dioecesim. 4. Sacerdotibus valde commendatur frequens, immo cotidiana celebratio Sanctissimi Sacrificii (can. 904). 5. Exceptis diebus 2 novembris et 25 decembris non licet sacerdoti plus quam semel in die celebrare. Ordinarius loci concedere potest sacerdotibus ut bis in die et ter die dominica vel festo de praecepto Missam celebrent (can. 905 §§ 1-2). 6. Non licet celebrare Sacrificium Eucharisticum sine participatione alicuius saltem fidelis (can. 906). In celebratione eucharistica diaconus et laicus non potest actionibus fungi, quae sacerdotis celebrantis sunt propriae (can. 907). 8. Can. 909 obligat sacerdotes ad se praeparandum ante Missam et ad gratias agendum post Missam. Idem admittitur in libro Liturgiae Horarum lingua latina edito. Aliter vero proponit, minus recte iudicio auctoris liber Liturgiae Horarum in lingua polonica publicatus. 9. Ad normam can. 910 § 2 et can. 230 § 3 laicus ad sacram Communionem distribuendam deputari potest. In Polonia viri, sed non mulieres, nostris diebus, facultatem communionem distribuendi ab ordinario obtinere possunt. 10. Officium et ius Viaticum ad infirmos deferendi habent parochus, vicarii paroeciales - in paroecia, cappellanus - in sua cappellania et superior in communitate religiosa clericali aut in societate vitae apostolicae versantibus in domo. In casu necessitatis hoc facere protest quilibet sacrae Communionis minister (can. 911 §§ 1-2). Sub fine auctor affirmat conclusionem esse brevem quia proemium longum videtur.

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Machado, M. V., J. Nunes, H. Cortez-Pinto, F. Ramalho et E. Monteiro. « 946 PREDICTION OF MORTALITY IN PATIENTS WITH ALCOHOLIC HEPATITIS : COMPARISON OF PROGNOSTIC SCORES ». Journal of Hepatology 48 (janvier 2008) : S354. http://dx.doi.org/10.1016/s0168-8278(08)60948-4.

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Lv, Lanbin, Ling Wang, Panming Fu, Xiaobo Chen, Zhiguo Zhang, Volker Gaebler, Dehua Li et al. « Diode-pumped self-Q-switched single-frequency 946-nm Nd^3+,Cr^4+:YAG microchip laser ». Optics Letters 26, n^o 2 (15 janvier 2001) : 72. http://dx.doi.org/10.1364/ol.26.000072.

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Lleo, A., W. Zhang, W. H. McDonald, D. Friedman, E. H. Seeley, P. S. Leung, P. Invernizzi et M. E. Gershwin. « 946 SHOTGUN PROTEOMICS IDENTIFIES SPECIFIC PROTEIN PROFILES IN APOPTOTIC BODIES FROM BILIARY EPITHELIAL CELLS ». Journal of Hepatology 58 (avril 2013) : S390. http://dx.doi.org/10.1016/s0168-8278(13)60948-4.

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R. Patil, Dipak, et Dipak S. Dalal. « One-Pot, Solvent Free Synthesis of Hantzsch 1, 4-Dihydropyridines Using β-Cyclodextrin as a Supramolecular Catalyst ». Letters in Organic Chemistry 8, n^o 7 (1 septembre 2011) : 477–83. http://dx.doi.org/10.2174/157017811796504891.

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Ab Rahman, Mohd Fariz, Mohamad Johari Abu, Rosyaini Afindi Zaman, Julie Juliewatty Mohamed, Mohd Fadzil Ain, Mohamad Kamarol Mohd Jamil et Zainal Arifin Ahmad. « Effect of Calcination Temperature on the Breakdown Strength and Energy Density of CaCu₃Ti₄O₁₂ Ceramic ». Materials Science Forum 888 (mars 2017) : 23–27. http://dx.doi.org/10.4028/www.scientific.net/msf.888.23.

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The effect of calcination temperature on the breakdown strength and energy density of CaCu3Ti4O12 (CCTO) ceramics was studied. CCTO ceramics were prepared via solid state reaction method. The raw materials of CCTO were wet mixed for 24 hours and then dried overnight in oven. CCTO mixtures were calcined at three different temperature which is at 900°C, 930°C and 950°C for 12 hours. The calcined powders were compacted at 250 MPa and then were sintered at 1040°C for 10 hours. X-Ray Diffractometer (XRD) analysis showed the formation of CCTO phase and secondary phases of CuO and CaTiO3 for C900 calcined powders but single phase of CCTO was obtained by C930 and C950 calcined powders. Single phase of CCTO also were seen for all sintered samples. Observation on Scanning Electron Microscopy (SEM) micrographs showed large grain size was seen in C900 sintered sample and finer grain size was observed for C930 and C950 sintered samples. C900 sintered sample obtained highest dielectric constant (8617), highest breakdown strength (7.92 kV/cm), highest energy density (2.392 J/cm3).

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Destefanis, P., A. Gonella, A. Battaglia, M. Allasia, E. Garzino, F. Soria, F. Pisano, P. Gontero et B. Frea. « 946 Hyaluronic acid for local bladder toxicity during intravesical immune-chemotherapy : A randomized prospective study ». European Urology Supplements 14, n^o 2 (avril 2015) : e946. http://dx.doi.org/10.1016/s1569-9056(15)60934-4.

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Artero, S. « 946 – Education modulates the effect of childhood adversity on lifetime suicidal behavior and major depression ». European Psychiatry 28 (janvier 2013) : 1. http://dx.doi.org/10.1016/s0924-9338(13)76095-4.

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Liao, Si-Ming, Ge Liang, Jing Zhu, Bo Lu, Li-Xin Peng, Qing-Yan Wang, Yu-Tuo Wei, Guo-Ping Zhou et Ri-Bo Huang. « Influence of Calcium Ions on the Thermal Characteristics of α-amylase from Thermophilic Anoxybacillus sp. GXS-BL ». Protein & ; Peptide Letters 26, n^o 2 (20 février 2019) : 148–57. http://dx.doi.org/10.2174/0929866526666190116162958.

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Background: α-Amylases are starch-degrading enzymes and used widely, the study on thermostability of α-amylase is a central requirement for its application in life science and biotechnology. </P><P> Objective: In this article, our motivation is to study how the effect of Ca2+ ions on the structure and thermal characterization of α-amylase (AGXA) from thermophilic Anoxybacillus sp.GXS-BL. </P><P> Methods: α-Amylase activity was assayed with soluble starch as the substrate, and the amount of sugar released was determined by DNS method. For AGXA with calcium ions and without calcium ions, optimum temperature (Topt), half-inactivation temperature (T50) and thermal inactivation (halflife, t1/2) was evaluated. The thermal denaturation of the enzymes was determined by DSC and CD methods. 3D structure of AGXA was homology modeled with α-amylase (5A2A) as the template. </P><P> Results: With calcium ions, the values of Topt, T50, t1/2, Tm and ΔH in AGXA were significantly higher than those of AGXA without calcium ions, showing calcium ions had stabilizing effects on α-amylase structure with the increased temperature. Based on DSC measurements AGXA underwent thermal denaturation by adopting two-state irreversible unfolding processes. Based on the CD spectra, AGXA without calcium ions exhibited two transition states upon unfolding, including α- helical contents increasing, and the transition from α-helices to β-sheet structures, which was obviously different in AGXA with Ca2+ ions, and up to 4 Ca2+ ions were located on the inter-domain or intra-domain regions according to the modeling structure. </P><P> Conclusion: These results reveal that Ca2+ ions have pronounced influences on the thermostability of AGXA structure.

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Aljawai, Yosra, Maureen Richards, Melanie Seaton, Srinivas Narasipura et Lena Al-Harthi. « β-Catenin/TCF-4 Signaling Regulates Susceptibility of Macrophages and Resistance of Monocytes to HIV-1 Productive Infection ». Current HIV Research 12, n^o 3 (31 août 2014) : 164–73. http://dx.doi.org/10.2174/1570162x12666140526122249.

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PARK*, Cha Gon, Han Tae CHOO et Gyu Ug KIM. « Output Characteristics of a Passively Q-Switched 946-nm Nd:YAG Laser with a Cr$^{4+}$:YAG Saturable Absorber ». New Physics : Sae Mulli 60, n^o 2 (27 février 2010) : 183–89. http://dx.doi.org/10.3938/npsm.60.183.

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Korotkyi, Oleksandr, Andrii Vovk, Oksana Blokhina, Kateryna Dvorshchenko, Tetyana Falalyeyeva, Ludovico Abenavoli et Liudmyla Ostapchenko. « Effect of Chondroitin Sulfate on Blood Serum Cytokine Profile during Carrageenan-induced Edema and Monoiodoacetate-induced Osteoarthritis in Rats ». Reviews on Recent Clinical Trials 14, n^o 1 (30 janvier 2019) : 50–55. http://dx.doi.org/10.2174/1574887113666181102111247.

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Background: Blood cytokines affect the development of inflammatory processes in both normal and pathological states. We have studied changes in the concentration of interleukins (ILs) - 1β, IL-4, IL-10, IL-12B p40, transforming growth factor β (TGF β), tumor necrosis factor (TNF-α) in acute carrageenan-induced inflammation and degenerative-dystrophic changes of knee joint caused by monoiodoacetate-induced Osteoarthritis (OA) in experimental models on rats. We also investigated the change in the cytokine profile during prophylactic and therapeutic administration of chondroitin sulfate to animals under experimental conditions. </P><P> Methods: The concentration of the cytokines was measured in blood serum by enzyme-linked immunosorbent assay. Results: The manifestation of articular lesions was characterized by a disturbance in the balance between proinflammatory (IL-1β, IL-12B p40, TNF-α) and anti-inflammatory (IL-4, IL-10, TGF -β) cytokines. Conclusion: A reduction in the concentration of proinflammatory cytokines in blood serum after prophylactic and therapeutic administration of chondroitin sulfate to the rat with experimental models of acute inflammation of the hind limb and degenerative-dystrophic changes in the knee joint with OA is associated with anti-inflammatory and regenerative properties of the drug.

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Astafurova, Elena, Valentina Moskvina, Marina Panchenko, Galina Maier, Eugene Melnikov, Kseniya Reunova, Nina Galchenko et Sergey Astafurov. « On the Superplastic Deformation in Vanadium-Alloyed High-Nitrogen Steel ». Metals 10, n^o 1 (23 décembre 2019) : 27. http://dx.doi.org/10.3390/met10010027.

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The experimental evidence for the realization of a superplastic behavior with 900% elongation in V-alloyed high-nitrogen austenitic Fe-19Cr-22Mn-1.5V-0.3C-0.6N steel was proposed. Using thermomechanical processing, a misoriented grain/subgrain austenitic microstructure with a high density of deformation-assisted defects and precipitates was developed in the steel. During high-temperature tensile deformation in a temperature interval from 850 to 1000 °C and strain-rate range from 4 × 10−4 s−1 to 6 × 10−3 s−1, this microstructure demonstrated the characteristics of superplastic flow: elongation in the interval 400–900%, strain-rate sensitivity exponent m = 0.40–0.49, grain boundary sliding mechanism. The maximum elongation to failure (900%) was reached at deformation temperature 950 °C and strain rate 4 × 10−4 s−1.

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Cho, C. Y., C. C. Chang et Y. F. Chen. « Efficient dual-wavelength laser at 946 and 1064 nm with compactly combined Nd:YAG and Nd:YVO4 crystals ». Laser Physics Letters 10, n^o 4 (14 février 2013) : 045805. http://dx.doi.org/10.1088/1612-2011/10/4/045805.

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El-Meligie, Salwa E. M., Nadia A. Khalil, Hala B. El-Nassan et Ahmed A. M. Ibraheem. « A Review on the Synthetic Routes to β-Keto Amides ». Current Organic Chemistry 23, n^o 19 (19 décembre 2019) : 2005–15. http://dx.doi.org/10.2174/1385272823666191021120336.

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This review summarizes the data published on the methods of preparation of β- keto amides as a versatile synthon for many heterocyclic rings and asymmetric urea derivatives. Based on the starting materials used for the synthesis of β-keto amides, eight methods were reported including β-keto acids and their derivatives, Meldrum’s acid and their derivatives, diketene, 2,6-dimethyl-1,3-dioxin-4-one derivatives (TMD), α-diazo ketones, enamines and enolates, acetamides and their derivatives and reduction of certain Passerini products.

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Yu, Shubei, Xixi Lin, Yi Zheng, Zheng Wu, Wei Zheng et Liman Qiao. « One New C21 Steroidal Glycosides from the Leaves of Cynanchum hancockianum ». Letters in Organic Chemistry 16, n^o 7 (30 mai 2019) : 556–59. http://dx.doi.org/10.2174/1570178615666181016113531.

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C21 steroids glycosides of various deoxysugars have been emerging from genus of Cynanchum. Besides classical C21 glycosides, many C21 glycosides with seco-ring aglycones attracted the extensive attention of many researchers. We conducted a systematic chemical investigation on Cynanchum hancockianum, which led to the isolation of one new seco-ring C21 steroidal glycosides. The new compound was identified as cynaascyriogenin 3-O-β-D-glucopyranosyl-(1-4)-α-L-cymaropyranosy-(1-4)- β-D-cymaropyranosyl-(1-4)-β-D-cymaropyranoside. The cytotoxic activities of the compound were evaluated using the A549 and MCF-7 cell lines, respectively. The IC50 values of the compound were 41.3 and 67.1µM, respectively. This is the first report on the isolation of seco-ring C21 steroidal glycosides from Cynanchum hancockianum.

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Odesskii, A. « Bihamiltonian Elliptic Structures ». Moscow Mathematical Journal 4, n^o 4 (2004) : 941–46. http://dx.doi.org/10.17323/1609-4514-2004-4-4-941-946.

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Wiggins, Charles E. « United States v. Dario Restrepo, 946 F.2d 654 (9th Cir. October 4, 1991) (1991 U.S. App. LEXIS 22996) ». Federal Sentencing Reporter 4, n^o 5 (1 mars 1992) : 251–70. http://dx.doi.org/10.2307/20639464.

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Айваз, Сафие Ипек. « Growth kinetics and microstructure of iron boride layers on AISI 1050 steel ». Металловедение и термическая обработка металлов, n^o 12 (4 janvier 2024) : 18–24. http://dx.doi.org/10.30906/mitom.2023.12.18-24.

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Исследована кинетика диффузии бора в стали AISI 1050 (сталь 50). Проведено борирование стали в течение 2, 4 и 6 ч при 850, 900 и 950 °C с использованием порошка Экабор-II (Ekabor-II) методом пакетного борирования. На поверхности образцов получены боридные слои FeB/Fe2B толщиной 25,4 – 118,9 мкм. Сформированные боридные слои имеют типичную зубчатую морфологию и твердость 1071 – 1460 HV0,1. Рассчитанные по результатам диффузионно-кинетических исследований константы скорости роста боридного слоя для стали AISI 1050 при температурах борирования 850, 900 и 950 °C составляют 1,522 ' 10 – 12; 2,964 ' 10 – 13 и 6,354 ' 10 – 12 м2 ' с – 1 соответственно. Определена энергия активации диффузии бора в стали AISI 1050, равная 162,93 кДж ' моль – 1.

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Chung, Tai-Shung, Kui Xiang Ma et Mike Jaffe. « Experimental and theoretical estimations of surface tensions for commercial liquid crystalline polymers, VectraTM A-950, B-950 and XydarTM SRT-900 ». Macromolecular Chemistry and Physics 199, n^o 6 (1 juin 1998) : 1013–17. http://dx.doi.org/10.1002/(sici)1521-3935(19980601)199:6<1013 ::aid-macp1013>3.0.co;2-4.

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Chaudhary, Mohammad Aslam, et Naved Ahmad. « Money Supply, Deficit, and Inflation in Pakistan ». Pakistan Development Review 34, n^o 4III (1 décembre 1995) : 945–56. http://dx.doi.org/10.30541/v34i4iiipp.945-956.

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Inflation is a burning issue in Pakistan. It is generally felt that for several years Pakistan has had a double-digit inflation. The public sector has used a mix of policies to control inflation, and it is also held responsible for its creation. The consumer price index (CPI) increased over 11 percent in 1981-82, and over 12 percent in 1990-91. Similarly, sensitive price index (SPI) increased over 15 percent in 1981-82, and over 12 percent in 1990-91. The GDP deflator was also double-digit for several years. Inflation not only affects sectoral allocation and distribution of income but also generates poverty. A prescription might not be appropriate until the roots of the disease are carefully investigated, which is the very reason for carrying out this study. Studies by Hossain (1990) several others concluded that inflation is a monetary phenomenon in Pakistan, while Bilquees (1988) showed that structural factors explained the inflationary process in Pakistan. It is widely disagreed whether money supply is exogenous or endogenous. Vogel (1974), criticising the monetarist approach, argued that further research is needed on the determination of money supply. Given this background, this study is intended to identify the variables leading to inflation; the nature of money supply, endogenous or exogenous, is also analysed. Section 2 of the study provides a brief review of the literature. A model is developed to study the relationship among fiscal deficit, money supply, and inflation. Section 3 contains a description of the empirical results. Section 4 provides the conclusion and policy implications.

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İpek Ayvaz, Safiye, et İbrahim Aydin. « Tribological and adhesion properties of microwave-assisted borided AISI 316L steel ». Materials Testing 64, n^o 2 (1 février 2022) : 249–59. http://dx.doi.org/10.1515/mt-2021-2031.

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Abstract In this study, AISI 316L stainless steel alloy samples were borided with powder-pack boriding method using Ekabor II powder with the support of a microwave furnace with a power of 2.9 KW and a frequency of 2.45 GHz. Boriding was carried out at 850, 900 and 950 °C temperatures for 2, 4 and 6 h of operation. A distinct diffusion barrier consisting of Fe–Ni–Si elements was detected in borided samples at 950 °C for 4 and 6 h. As a result of the Daimler Benz Rockwell-C adhesion tests, regions with insufficient adhesion strength were detected in these samples. In other samples, adhesion qualities between boride layers and substrate were in the range of HF1–HF3. The lowest specific wear rates were determined as 5.208 (mm3 Nm−1) × 10−6 and 5.210 (mm3 Nm−1) × 10−6 for the samples borided for 6 h at 850 °C and 4 h at 900 °C, respectively. It was determined that the increase in thickness of the brittle FeB compound increased the wear with the three-body abrasive wear mechanism.

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Chorney, Maureen P., Kunal Mondal, Jerome P. Downey et Prabhat K. Tripathy. « On the Sintering Behavior of Nb2O5 and Ta2O5 Mixed Oxide Powders ». Materials 15, n^o 14 (20 juillet 2022) : 5036. http://dx.doi.org/10.3390/ma15145036.

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A mixed oxide system consisting of Nb2O5 and Ta2O5, was subjected to annealing in air/hydrogen up to 950 °C for 1–4 h to study its sintering behavior. The thermogravimetric–differential scanning calorimetry (TGA–DSC) thermograms indicated the formation of multiple endothermic peaks at temperatures higher than 925 °C. Subsequently, a 30% Ta2O5 and 70% Nb2O5 (mol%) pellet resulted in good sintering behavior at both 900 and 950 °C. The scanning electron microscope (SEM) images corroborated these observations with necking and particle coarsening. The sintered pellets contained a 20.4 and 20.8% mixed oxide (Nb4Ta2O15) phase, along with Ta2O5 and Nb2O5, at both 900 and 950 °C, indicating the possibility of the formation of a solid solution phase. In situ high-temperature X-ray diffraction (XRD) scans also confirmed the formation of the ternary oxide phase at 6 and 19.8% at 890 and 950 °C, respectively. The Hume–Rothery rules could explain the good sintering behavior of the Ta2O5 and Nb2O5 mixed oxides. An oxide composition of 30% Ta2O5 and 70% Nb2O5 (mol%) and a sintering temperature of 950 °C appeared adequate for fabricating well-sintered oxide precursors for subsequent electrochemical polarization studies in fused salts.

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Guo, Dong Yun, Akihiko Ito, Rong Tu et Takashi Goto. « Ba₂TiO₄ and Ba₄Ti₁₃O₃₀ Thick Films Prepared by Laser Chemical Vapor Deposition and their Microstructure ». Key Engineering Materials 508 (mars 2012) : 199–202. http://dx.doi.org/10.4028/www.scientific.net/kem.508.199.

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Ba2TiO4 and Ba4Ti13O30 Thick Films Were Prepared by Laser Chemical Vapor Deposition Using Ba- and Ti-Dipivaloylmethanate Precursors. Single-Phase Ba2TiO4 Thick Films Were Obtained at 845–946 K and Ba/Ti Source Molar Ratio 2.4. Single-Phase Ba4Ti13O30 Films Were Obtained at 944–1011 K and Ba/Ti Source Molar Ratio 0.38. Ba2TiO4 Thick Films Consisted of Truncated Grains, while Ba4ti13o30 Thick Films Had Shellfish-Like Grains. Ba2TiO4 and Ba4Ti13O30 Thick Films Showed a Columnar Growth and their Deposition Rates Were 72 and 132 μm h−1, Respectively.

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Samanta, Tuhin, Athma E. Praveen et Venkataramanan Mahalingam. « Host sensitized intense infrared emissions from Ln3+ doped GdVO4 nanocrystals : ranging from 950 nm to 2000 nm ». Journal of Materials Chemistry C 6, n^o 18 (2018) : 4878–86. http://dx.doi.org/10.1039/c8tc00841h.

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In this communication we report the observation of intense near infrared (NIR) emissions in the 900 nm to 2000 nm range from colloidal water dispersible lanthanide (Ln³⁺) doped GdVO₄ nanocrystals (Ln = Sm³⁺, Nd³⁺, Dy³⁺, Tm³⁺, Er³⁺ and Ho³⁺).

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Koch, Wolfram. « Deciphering the Chemical Code. VonN. D. Epiotis. VCH Verlagsgesellschaft, Weinheim, 1996. 933 S., geb. 89.95 $.—ISBN 1-56081-946-4 ». Angewandte Chemie 109, n^o 11 (2 juin 1997) : 1271–72. http://dx.doi.org/10.1002/ange.19971091131.

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