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Hemmati, Saba, Lida Mehrazin, Hedieh Ghorban, Samira Hossein Garakani, Taha Hashemi Mobaraki, Pourya Mohammadi und Hojat Veisi. „Correction: Green synthesis of Pd nanoparticles supported on reduced graphene oxide, using the extract of Rosa canina fruit, and their use as recyclable and heterogeneous nanocatalysts for the degradation of dye pollutants in water“. RSC Advances 8, Nr. 44 (2018): 25182. http://dx.doi.org/10.1039/c8ra90060d.
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Correction for ‘Correction: Green synthesis of Pd nanoparticles supported on reduced graphene oxide, using the extract of Rosa canina fruit, and their use as recyclable and heterogeneous nanocatalysts for the degradation of dye pollutants in water’ by Saba Hemmati et al., RSC Adv., 2018, 8, 22763–22763.
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Hemmati, Saba, Lida Mehrazin, Hedieh Ghorban, Samira Hossein Garakani, Taha Hashemi Mobaraki, Pourya Mohammadi und Hojat Veisi. „Correction: Green synthesis of Pd nanoparticles supported on reduced graphene oxide, using the extract of Rosa canina fruit, and their use as recyclable and heterogeneous nanocatalysts for the degradation of dye pollutants in water“. RSC Advances 8, Nr. 40 (2018): 22763. http://dx.doi.org/10.1039/c8ra90053a.
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Correction for ‘Green synthesis of Pd nanoparticles supported on reduced graphene oxide, using the extract of Rosa canina fruit, and their use as recyclable and heterogeneous nanocatalysts for the degradation of dye pollutants in water’ by Saba Hemmati et al., RSC Adv., 2018, 8, 21020–21028.
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Grześ, Paweł, Maria Michalska und Jacek Świderski. „Gain-switched seed laser for Deep Space communication applications“. Photonics Letters of Poland 10, Nr. 2 (30.06.2018): 45. http://dx.doi.org/10.4302/plp.v10i2.818.
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Deep Space (DS) communication plays an important role in space exploration programs, especially in interplanetary flights projects. To resolve limitations of a well-known microwave link, an optical communication is considered. In the article a gain-switched seed laser for high power transmitter in a Master Oscillator Power Amplifier (MOPA) architecture is presented. This optical signal source is able to generate picosecond pulses on demand and is suitable for high speed data link over a long range. The laser is dedicated to the pulse position modulation (PPM) scheme for low power consuming, high capacity and energy efficient optical communication. Full Text: PDF ReferencesH. Hemmati, Deep Space Optical Communications (Jet Propulsion Laboratory 2005), John Wiley & Sons, 2006. CrossRef T. Tolker-Nielsen and G. Oppenhauser, “In-Orbit Test Result of an Operational Intersatellite Link between ARTEMIS and SPOT 4,” FreeSpace Laser Communication Technologies XIV, Proceedings of SPIE, vol. 4639, pp. 1–15, San Jose, California, January 2002. CrossRef D. M. Boroson, et al., "Overview and results of the Lunar Laser Communication Demonstration", Proc SPIE 8971, 89710S (2014). CrossRef D. M. Boroson, A. Biswas, B. L. Edwards, "MLCD: overview of NASA's Mars laser communications demonstration system", P. Soc. Photo-Opt. Ins. 5338 (2004). CrossRef H. Hemmati, A. Biswas, I. B. Djordjevic, "Deep-Space Optical Communications: Future Perspectives and Applications", Proc. of the IEEE 99.11, (2011). CrossRef H. Kaushal, G. Kaddoum, "Optical Communication in Space: Challenges and Mitigation Techniques", IEEE Commun Surv Tut. 19.1, 57 (2017). CrossRef B. Moision, J. Hamkins, M. Cheng, "Deep-space optical communications downlink budget: modulation and coding", IPN Prog. Rep. 42.154, 1 (2005). DirectLink
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REZAEI, Mehdi. „Mevlana Himmetî'nin Türkçe Divanı ve Bu Divanda Hz. Ali'nin Yeri“. Türk Kültürü ve HACI BEKTAŞ VELİ Araştırma Dergisi 96 (20.12.2020): 229–48. http://dx.doi.org/10.34189/hbv.96.010.
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Padmanabhan, Hamsa. „Constraining the evolution of [C ii] intensity through the end stages of reionization“. Monthly Notices of the Royal Astronomical Society 488, Nr. 3 (15.07.2019): 3014–23. http://dx.doi.org/10.1093/mnras/stz1878.
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ABSTRACT We combine available constraints on the local [C ii] 158 $\mu$m line luminosity function from galaxy observations (Hemmati et al. 2017), with the evolution of the star formation rate density and the recent [C ii] intensity mapping measurement in Pullen et al. (2018, assuming detection), to derive the evolution of the [C ii] luminosity–halo mass relation over z ∼ 0–6. We develop convenient fitting forms for the evolution of the [C ii] luminosity–halo mass relation and forecast constraints on the [C ii] intensity mapping power spectrum and its associated uncertainty across redshifts. We predict the sensitivities to detect the power spectrum for upcoming PIXIE-, STARFIRE-, EXCLAIM-, CONCERTO-, TIME-, and CCAT-p-like surveys, as well as possible future intensity mapping observations with the ALMA (Atacama Large Millimetre Array) facility.
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Malek, Amy. „Tehrangeles Dreaming: Intimacy and Imagination in Southern California's Iranian Pop Music. Farzaneh Hemmasi (Durham, NC: Duke University Press, 2020). Pp. 264. $26.95 paper. ISBN: 9781478008361“. International Journal of Middle East Studies 53, Nr. 1 (Februar 2021): 165–68. http://dx.doi.org/10.1017/s0020743820001142.
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Arvizu Mondragón, Arturo, Josué Aarón López Leyva, Juan Carlos Murrieta Lee, Luis Alberto Morán Medina, Ramón Muraoka Espíritu und Joel Santos Aguilar. „Desarrollo de un Sistema de Comunicaciones Ópticas Clásicas en Espacio Libre con Aplicación en Comunicaciones Cuánticas“. Nova Scientia 6, Nr. 12 (08.10.2014): 248. http://dx.doi.org/10.21640/ns.v6i12.52.
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Actualmente los enlaces ópticos en espacio libre tienen diversas aplicaciones (algunas comerciales y otras en desarrollo) tales como: a) enlaces horizontales de comunicaciones dentro de la misma capa de la atmósfera terrestre (denominados enlaces FSO por sus siglas en inglés “free space optics”) permanentes o temporales (para situaciones de emergencia) de corta distancia para comunicación entre edificios (Fsona, 2014) , y comunicación de alta velocidad en redes personales de área local óptica inalámbrica (Wang, K., et al, 2011), b) enlaces verticales (denominados generalmente sistemas LASERCOM) para comunicación entre aviones y satélites, entre satélites en diferentes órbitas (Chan, V., 2003), de satélites a estaciones terrenas y viceversa (operando en diversas capas de la atmósfera terrestre o en el espacio profundo (Hemmati, H., 2006)), c) conexión óptica inalámbrica de alta velocidad entre tarjetas de circuito impreso (por ejemplo para distribución de señales de reloj dentro de un satélite y/o para interconectar ductos y microprocesadores sin interferencia electromagnética (Savage, N., 2002)). El desarrollo de enlaces ópticos para comunicación de tierra hacia y desde el espacio ha sido y es de gran interés para diversas agencias espaciales alrededor del mundo (JAXA, 2009), en particular, el sistema satelital europeo SILEX es un ejemplo de su aplicación (ESA, 2014); además, la NASA puso en funcionamiento en septiembre de 2013 la misión “Lunar Laser Communication Demonstration”, cuyo objetivo principal es demostrar la confiabilidad de la comunicación óptica entre una estación situada en órbita lunar y estaciones terrenas en nuestro planeta (NASA,2014). Generalmente los enlaces arriba mencionados son “clásicos” (operando con un relativamente alto número de fotones por período de observación), pero, recientemente ha crecido el interés en desarrollar sistemas de comunicaciones “cuánticos” (con bajo número de fotones por período de observación) (Hemmati, H. et al, 2012). Para estos sistemas pueden emplearse diversos “estados cuánticos”, (cuyas propiedades han sido y son investigadas por diversos grupos de científicos alrededor del mundo (Becerra, F.E., et al, 2013)), entre otros, los “estados entrelazados” (Ma, X., et al, 2012), o los “estados débiles coherentes” (WCS). Nosotros elegimos los WCS por ser posible generarlos con fuentes ópticas de telecomunicaciones (López, J., et al, 2013, López, J., et al, 2012), y porque su empleo a través del espacio libre permite, entre otros, enlaces incondicionalmente seguros para distribución de llave cuántica (QKD) y enlaces satelitales, (tópicos actualmente de alto interés a nivel mundial). Es pertinente mencionar que ya hemos realizado algunos subsistemas con WCS operando en fibra óptica (López, J. et al, 2013), sin embargo, nos interesa desarrollar sistemas en espacio libre para aplicaciones satelitales (Gutiérrez, C., et al, 2013). Para la realización de un sistema FSO-WCS es conveniente primero desarrollar un enlace FSO-clásico cuyos subsistemas funcionen en enlaces cuánticos. Así, presentamos en primer lugar la metodología para diseño de enlaces ópticos en espacio libre, y una herramienta computacional desarrollada para esto. Entre los sistemas diseñados hay un esquema de sincronización espacial (ATP) usando un APD de cuatro cuadrantes y un subsistema de levitación magnética para seguimiento de un “faro óptico” clásico a 532 nm. Cabe mencionar que aunque existe una cantidad importante de trabajos dedicados al desarrollo de sistemas ATP con transmisión óptica clásica, a lo mejor de nuestro conocimiento no se ha reportado ningún sistema ATP basado en levitación magnética para enlaces empleando WCS, (desde nuestro punto de vista esta es una aportación importante del presente trabajo). Por otro lado, aunque aquí nos enfocamos en la implementación y caracterización de un enlace FSO- clásico, con los resultados obtenidos se continuará con el desarrollo de enlaces FSO-WCS con aplicación satelital.
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Alharthi, Thamer. „Implementation of Communication Strategies for Lexical Difficulties in Writing Production“. International Journal of Linguistics 12, Nr. 1 (19.02.2020): 179. http://dx.doi.org/10.5296/ijl.v12i1.16500.
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Learning vocabulary is undeniably a key requirement for being successful in language learning. The lexicon therefore is an integral part of writing successful compositions, without which they become rather meaningless. In spite of this dynamic link, research in this field seems rather lacking in many shapes and forms; partly because of the inextricable link between vocabulary and reading and partly because of the relationship between learners’ communication strategies and vocabulary use to the extent current research overshadows that in vocabulary use in writing. This paper aims to classify the problems writers of English as a Foreign Language face, adopting a model proposed by Hemmati (2001) which follows Chomsky’s distinction between performance and competence errors. A study was carried out with thirty-one final year English students who were asked to write an argumentative essay, followed by oral retrospective interviews on their writing of the essay. The frequency of certain lexical problems varied according to the writing output the students were assigned, e.g. lexical gaps, mastery of aspects of known words and retrieval of word aspect problems in L2 writing. With regard to communication strategy, the study participants reported the use of such a strategy by following an order of preferences, e.g. prioritizing paraphrase, followed by circumlocution, then message replacement, and then body language. Significant correlations were found between participants’ lexical proficiency and the frequency of types of lexical problem they experienced as well as their particular choice of communication strategies. The paper ends by discussing the pedagogical and research implications of the study.
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Lorico, Aurelio, und Germana Rappa. „Phenotypic Heterogeneity of Breast Cancer Stem Cells“. Journal of Oncology 2011 (2011): 1–6. http://dx.doi.org/10.1155/2011/135039.
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Many types of tumors are organized in a hierarchy of heterogeneous cell populations, with only a small proportion of cancer stem cells (CSCs) capable of sustaining tumor formation and growth, giving rise to differentiated cells, which form the bulk of the tumor. Proof of the existence of CSC comes from clinical experience with germ-cell cancers, where the elimination of a subset of undifferentiated cells can cure patients (Horwich et al., 2006), and from the study of leukemic cells (Bonnet and Dick, 1997; Lapidot et al., 1994; and Yilmaz et al., 2006). The discovery of CSC in leukemias as well as in many solid malignancies, including breast carcinoma (Al-Hajj et al. 2003; Fang et al., 2005; Hemmati et al., 2003; Kim et al., 2005; Lawson et al., 2007; Li et al., 2007; Ricci-Vitiani et al., 2007; Singh et al., 2003; and Xin et al., 2005), has suggested a unifying CSC theory of cancer development. The reported general insensitivity of CSC to chemotherapy and radiation treatment (Bao et al., 2006) has suggested that current anticancer drugs, which inhibit bulk replicating cancer cells, may not effectively inhibit CSC. The clinical relevance of targeting CSC-associated genes is supported by several recent studies, including CD44 targeting for treatment of acute myeloid leukemia (Jin et al., 2006), CD24 targeting for treatment of colon and pancreatic cancer (Sagiv et al., 2008), and CD133 targeting for hepatocellular and gastric cancer (Smith et al., 2008). One promising approach is to target CSC survival signaling pathways, where leukemia stem cell research has already made some progress (Mikkola et al., 2010).
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Tahmasbi, Soodeh, Tahereh Sheikh und Yasamin B. Hemmati. „Ion Release and Galvanic Corrosion of Different Orthodontic Brackets and Wires in Artificial Saliva“. Journal of Contemporary Dental Practice 18, Nr. 3 (2017): 222–27. http://dx.doi.org/10.5005/jp-journals-10024-2021.
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ABSTRACT Introduction To investigate the galvanic corrosion of brackets manufactured by four different companies coupled with stainless steel (SS) or nickel–titanium (NiTi) wires in an artificial saliva solution. Materials and methods A total of 24 mandibular central incisor Roth brackets of four different manufacturers (American Orthodontics, Dentaurum, Shinye, ORJ) were used in this experimental study. These brackets were immersed in artificial saliva along with SS or NiTi orthodontic wires (0.016”, round) for 28 days. The electric potential difference of each bracket/ wire coupled with a saturated calomel reference electrode was measured via a voltmeter and recorded constantly. Corrosion rate (CR) was calculated, and release of ions was measured with an atomic absorption spectrometer. Stereomicroscope was used to evaluate all samples. Then, samples with corrosion were further assessed by scanning electron microscope and energydispersive X-ray spectroscopy. Two-way analysis of variance was used to analyze data. Results Among ions evaluated, release of nickel ions from Shinye brackets was significantly higher than that of other brackets. The mean potential difference was significantly lower in specimens containing a couple of Shinye brackets and SS wire compared with other specimens. No significant difference was observed in the mean CR of various groups (p>0.05). Microscopic evaluation showed corrosion in two samples only: Shinye bracket coupled with SS wire and American Orthodontics bracket coupled with NiTi wire. Conclusion Shinye brackets coupled with SS wire showed more susceptibility to galvanic corrosion. There were no significant differences among specimens in terms of the CR or released ions except the release of Ni ions, which was higher in Shinye brackets. How to cite this article Tahmasbi S, Sheikh T, Hemmati YB. Ion Release and Galvanic Corrosion of Different Orthodontic Brackets and Wires in Artificial Saliva. J Contemp Dent Pract 2017;18(3):222-227.
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Hemmati-Dinarvand, Mohsen, Aliakbar Taheraghdam, Ali Mota, Sepideh Zununi Vahed und Nasser Samadi. „In response to a letter to Editor by Vivek Kumar Garg., et al. on our paper: “Dysregulation of serum NADPH oxidase1 and ferritin levels provides insights into diagnosis of Parkinson's disease”. Hemmati-Dinarvand, M., et al. 2017; 50 (18):1087–1092“. Clinical Biochemistry 56 (Juni 2018): 118–19. http://dx.doi.org/10.1016/j.clinbiochem.2018.04.023.
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Panitsas, Fotios P., Ioannis Baltathakis, Ioannis Kakkas, Stavros Gigantes, Anna Komitopoulou, Panagiotis Oikonomopoulos, Ifigeneia Tzannou et al. „Prognostic Significance of Detection of Minimal Residual Disease by Multiparametric Flow Cytometry Before Allogeneic Stem Cell Transplantation in Patients with Acute Myeloid Leukemia“,. Blood 118, Nr. 21 (18.11.2011): 4116. http://dx.doi.org/10.1182/blood.v118.21.4116.4116.
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Abstract Abstract 4116 The main prognostic determinant of the outcome of allogeneic stem cell transplantation (allo-SCT) for acute myeloid leukemia (AML) is disease phase at transplant while the relevance of the assessment of minimal residual disease (MRD) at transplant has not been elucidated. Although molecular markers are highly sensitive for the detection of MRD, they are available in only half of AML cases to date. On the other hand, multiparametric flow cytometry (MFC) offers the feasibility of MRD assessment in virtually all patients. We retrospectively studied the influence of pre-transplant MRD status by MFC on the outcomes of patients with AML in relation to other known prognostic factors. From 01/2003 to 12/2010, 102 AML patients (male/female; 58/44), aged 15–64 (median; 42) years, received allo-SCT in our center at first (CR1, N=69) or subsequent (CR≥2, N=33) morphologic complete remission. Donors were HLA-compatible siblings (N=45), matched unrelated (N=34) or alternative (haploidentical relatives or unrelated cord blood; N=6 and 17, respectively). The conditioning regimen was myeloablative in 85 (83.33%), and reduced-intensity in 17 (16.67%) cases. Data on MRD assessment by four- or five-color MFC before transplant were available in 92 patients. MRD was defined as any percentage of cells with an aberrant antigen expression pattern compared to normal or regenerating marrow. Transplant outcomes associated with MRD in univariate and multivariate analysis were overall (OS) and disease-free (DFS) survival, relapse incidence, and non-relapse-related mortality (NRM). Prognostic parameters included in the statistical model were the following: age and gender of recipient or donor, interval from diagnosis to transplant, de novo versus secondary AML, CR1 versus CR≥2 at transplant, cytogenetic risk group (according to Intergroup ECOG/SWOG definition), recipient and donor cytomegalovirus (CMV) serostatus, donor type, conditioning regimen (myeloablative versus reduced-intensity), degree of HLA match, method of graft-versus-host disease (GVHD) prophylaxis, and the modified European Blood and Marrow Transplantation Group (EBMT) risk score (Hemmati et al, 2011). With a median follow-up of 47 (range, 6–98) months, OS and DFS were 54.2% and 51.72%, respectively. The cumulative incidence of relapse was 24.45%, and of NRM 23.82%. Eighteen out of 92 (19.57%) patients had MRD by MFC before allo-SCT. According to univariate analysis, the presence of MRD showed a negative association with OS (29.63% versus 63.17% at 4 years in patients with or without MRD, respectively, P=0.053) and DFS (28.52% in MRD-positive versus 59.74% in MRD-negative cases at 4 years, P=0.025, Figure 1). Presence of MRD correlated with higher incidence of relapse compared to MRD negativity (52.7% versus 15.8%, respectively, P=0.001) (Figure 2), but did not influence NRM. In multivariate analysis (Cox proportional hazards, backward stepwise selection), the parameters that remained independent adverse risk factors in terms of specific outcomes were: a) For OS: age and male gender of patient, alternative donor, unfavorable karyotype, CR≥2, and secondary AML, b) For DFS: presence of MRD (HR=3.2, P=0.009), CR≥2 (ÇR=3.1, P=0.005), reduced-intensity conditioning (HR=2.6, P=0.034), and unfavorable karyotype (HR=2.06, P=0.074), c) For relapse: presence of MRD (ÇR=3.83, P=0.003), and unfavorable karyotype (HR=3.55, P=0.007), and d) For NRM: age of recipient, CR≥2, and alternative donor. In conclusion, the presence of MRD by MFC before allo-SCT for AML is associated with a significantly higher risk of relapse and an inferior DFS, despite morphologic complete remission at transplant. Moreover, pre-transplantation MRD status has independent prognostic significance in addition to the disease phase, cytogenetic risk group, and intensity of the conditioning regimen. Prospective studies are warranted to examine if the adverse impact of MRD on the outcomes of allo-SCT can be reversed by immunologic manipulations aiming at augmenting graft-versus-leukemia (GVL) effect. Disclosures: No relevant conflicts of interest to declare.
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Ritter, Malte U., Olga Klimenkova, Maksim Klimiankou, Amy E. Schmidt, Carol Stocking, Lothar Kanz, Cornelia Zeidler, Daniel C. Link, Karl Welte und Julia Skokowa. „Understanding the Role of CSF3R and Runx1 Runt Homology Domain Missense Mutations in Leukemic Transformation of Hematopoietic Stem Cells“. Blood 132, Supplement 1 (29.11.2018): 1101. http://dx.doi.org/10.1182/blood-2018-99-118644.
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Abstract Patients with pre-leukemic bone marrow failure syndrome, severe congenital neutropenia (CN) have ~ 20% risk of developing acute myeloid leukemia (AML) (CN-AML). More than 70 % of CN-AML patients co-acquire CSF3R and RUNX1 mutations as shown by our group (Skokowa et al 2014), indicating a cooperative role of the mutations in these two genes in the development of AML in CN patients. In order to investigate the interaction between these mutations we conducted in vitro experiments on lineage negative (lin-) bone marrow mononuclear cells (BMCs) from C57BL/6-d715csf3r mice (d715-mice). These mice carry homozygous d715G CSF3R mutations, but do not develop AML. We isolated lin- BMCs from d715 mice and transduced these cells with four different lentivirus vectors carrying BFP only (CTRL), RUNX1-Wild type BFP (RUNX1-WT), RUNX1-R139G BFP (RUNX1-MUT1) and RUNX1-R174L BFP (RUNX1-MUT2). These RUNX1 mutations where found in CN-AML patients. 72 hours after transduction, we sorted BFP+ cells and compared G-CSF triggered myeloid differentiation in vitro. We found that cells transduced with each RUNX1 mutants exhibited reduced percentages of myeloid CD11b+, Gr-1+ and double positive cells compared to RUNX1-WT. We also conducted CFU re-plating experiments with transduced cells and found that cell transduced with each of RUNX1 mutants showed 7- (RUNX1-MUT1) and 8- (RUNX1-MUT2) times higher re-plating capacity than RUNX1-WT and CTRL transduced cells. To identify signaling pathways that are deregulated in G-CSFR-mutated HSCs clones after co-acquisition of RUNX1 mutations, we performed microarray study. We starved transduced and sorted lin- BMCs for 24 hours and treated cells with G-CSF for 48 hours before mRNA was collected. Expression profiles where generated by microarray (GeneChip Mouse Gene 2.0 ST Array). Pathway Analysis was conducted using IPA Software and Motif activity response analysis (MARA) was performed using ISMARA web tool. Reported Transcription factors and targets have Z-value ≥ 2 or ≤-2 and p ≤ 0,05 and are thus considered statistically significant. Interestingly, ISMARA analysis showed, that the highest active motif in RUNX1-Mutants was Irf2_Irf1_Irf8_Irf9_Irf7 motif which is essential for the regulation of the interferon pathway genes. The corresponding transcription factors are amongst others regulated by Sp1 and Stat2 that were also active. Correspondingly, IPA Pathway analysis showed, that Interferon Signaling was highly upregulated in cells transduced with each of two RUNX1 mutants, compared to overexpressed RUNX1-WT (Z = 2). Additionally, pathway analysis showed the upregulation and activation of IL-6, IL-8-, Toll like Receptor- and TREM1 signaling pathways. This data suggests that the mutated RUNX1 may cause activation of the pro-inflammatory cell state propagating proliferation, which may be emerging as a cause of clonal hematopoiesis (CH) and consequently may lead to MDS/AML (Hemmati et al 2017). Another active motif is Spi1/PU.1 mainly known as an essential transcription factor for monocytic differentiation, but also as a maintenance factor of the pre-leukemia initiating cells (pre-LICs) or even leukemia initiating cells (LICs) (Staber et al 2014). Interestingly, we recently described elevated expression of PU.1 in hematopoietic cells of CN patients. These data together with our in vitro finding indicating that RUNX1 mutation causes differentiation block and clonal proliferation of HSCs, supporting the hypothesis, that the RUNX1 mutations are the driving factor in leukemic transformation in CN. Additionally, ISMARA revealed an upregulation of the Metyl-CpG Binding Protein 2 (Mecp2) motif. Mecp2 is a proto-oncogene that represses transcription through interaction with the corepressor SIN3A and histone deacetylases. Thus, remodeling the transcriptional profile and inhibiting differentiation. Taken together, our data shows that RUNX1 mutations in combination with CSF3R mutations may cause (1) increased proliferation through the induction of a proinflammatory cell state, (2) induce self-renewal through expression of essential proteins for LIC maintenance and (3) dimineshed myeloid differentiation through demethylation inhibition and down regulation of hematopoietic differentiation pathways. We are currently validating the model of the leukemogenic transformation in CN patients using functional studies in vitro and in vivo. Disclosures No relevant conflicts of interest to declare.
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Nanquette, Laetitia. „Farzaneh Hemmasi. Tehrangeles Dreaming: Intimacy and Imagination in Southern California's Iranian Pop Music“. Abstracta Iranica, Volume 42-43 (30.12.2020). http://dx.doi.org/10.4000/abstractairanica.52754.
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Rokni, Siavash. „Review of Tehrangeles Dreaming: Intimacy and Imagination in Southern California Iranian Pop Music by Farzaneh Hemmasi (Duke Press)“. Lateral 10, Nr. 1 (April 2021). http://dx.doi.org/10.25158/l10.1.28.
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Tehrangeles Dreaming is the first book about the Tehrangeles music industry, that is, the Iranian diaspora music industry brought to life by the expatriate Iranian artists and music producers who settled in Los Angeles and Southern California after the 1979 Iranian revolution. Farzaneh Hemmasi uses an ethnographic approach in combination with an analysis of diaspora media discourse in order to “examine expatriate imaginations of influence on, and intimacy with, their global Iranian audiences” (26). At its core, the book deals with the imagining and reimagining of Iranian identity by the artistic community that creates music and media content for Iranians in Iran and across the world.
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Hemmati, Hamidreza, Shahrzad Izadi, Setareh Soltani, Fatemeh Aghamohammadlou und Majid Mirmohammadkhani. „Prevalence and predictors of an out-of-range cuff pressure of endotracheal tube in mechanically ventilated patients in a teaching hospital in Iran“. Anaesthesia, Pain & Intensive Care 24, Nr. 5 (06.10.2020). http://dx.doi.org/10.35975/apic.v24i5.1357.
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Background: The study aimed to investigate the out-of-range cuff pressure of endotracheal tube in mechanically ventilated patients.
Methodology: This cross-sectional study was performed in Semnan, Iran in 2019. The cuff pressure was measured in patients aged over 18 years who were intubated for at least 24 hours. Out-of-range pressure was defined as a pressure of < 20 cmH2O or > 30 cmH2O. A multiple logistic regression model was used for analysis.
Results: Of 222 cases, 67 (30.2%) had cuff pressure in the normal range and 155 (69.8%) were not in the normal range; 41 (18.5%) and 114 (51.4%) had low and high pressures. The two groups were not significantly different in terms of age and gender. Longer mechanical ventilation (p = 0.004) and hospitalization place (p = 0.001) were the two factors that had a relationship with the out-of-range pressure. The probability of out-of-range pressure was significantly higher in the cardiac (p = 0.001, OR = 6.91) and internal medicine (p = 0.008, OR = 4.61), compared to the emergency intensive care unit.
Conclusion: The authorities should take into consideration some important factors, such as the lack of instructions in hospital units, lack of proficiency for correct measurement, deficient required facilities, and not using the facilities for regular monitoring.
Keywords: Mechanical Ventilation, Endotracheal Intubation, Airway Management, Pressure.
Citation: Hemmati H, Izadi S, Soltani S, Aghamohammadlou F, Mirmohammadkhani M. Prevalence and predictors of an out-of-range cuff pressure of endotracheal tube in mechanically ventilated patients in a teaching hospital in Iran. Anaesth. pain intensive care 2020;24(5):
Received: 20 June 2020, Reviewed: 24, 28 June 2020, Accepted: 1 July 2020
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de Oliveira, Felipe Franco, Gabriel Madoglio Favara, Camila Geovana Ferro, Heron Delgado Kraide, Eike Yudi Nishimura Carmo, Elliot W. Kitajima und Jorge Alberto Marques Rezende. „First report of groundnut ringspot virus infecting Zinnia sp. in Brazil“. Plant Disease, 07.07.2021. http://dx.doi.org/10.1094/pdis-05-21-1028-pdn.
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Zinnia sp. is a genus belonging to Asteraceae family, originated in Mexico and adapted to a warm-hot climate (Hemmati and Mehrnoosh, 2017). Several types of zinnias with different flower color and forms are cultivated in Brazil (Min et al., 2020 and Souza Jr. et al., 2020). Characteristic symptoms of infection caused by orthotospovirus, including chlorotic spots and concentric rings on the leaves, were observed in two plants of Zinnia sp. of a florist located in the city of Piracicaba, State of São Paulo, Brazil. Orthotospovirus-like particles were observed by transmission electron microscope in leaf extracts from both plants, stained negatively with 1% uranyl acetate. By analyzing ultrathin sections of infected leaf tissues, particles of 80-100 nm in diameter were found in the lumen of the endoplasmic reticulum and nucleocapsid aggregates in the cytoplasm. Total RNA extracted separately from the leaves of both samples, using the Purelink Viral DNA / RNA kit (Thermo Fisher Scientific), was used to detect the virus by reverse transcription polymerase chain reaction (RT-PCR), using the universal primers for orthotospovirus BR60, complementary to the 3’ end of the non-translated region of the S RNA (position 1 to 15 nt), and BR65, matching the nucleocapsid gene (N) (position 433 to 453 nt), generating and amplicon of 453 nt (Eiras et al., 2001). Amplicons of the expected size were obtained for the two samples. An amplicon was purified with the Wizard SV Gel and PCR Clean-Up System kit (Promega) and sequenced in both directions at Macrogen Inc (South Korea). The nucleotide sequence (GenBank MW629018) showed 99.29-99.76% identity with nucleotide sequences of the orthotospovirus groundnut ringspot virus (GRSV) isolates (GenBank MH686229 and KY400110). Leaf extracts from symptomatic plants were also analyzed by plate-trapped antigen-enzyme-linked immunosorbent assay (PTA-ELISA), using polyclonal antiserum produced against the GRSV nucleocapsid protein (Esquivel et al., 2019). The absorbance values obtained for the extracts of the two symptomatic plants of Zinnia sp. (1.3 and 1.7) were twice as high as the value obtained for the healthy plant extract (0.5). Leaf extract of symptomatic Zinnia sp. was inoculated mechanically onto leaves of healthy plants of Zinnia sp., Capsicum annuum cv. Dara, Cucumis sativus, Cucurbita pepo cv. Caserta, Chenopodium amaranticolor, Datura stramonium, Nicotiana tabacum cv. Turkish and Solanum lycopersicum cv. Compack. At 5 days post inoculation (dpi), inoculated leaves of D. stramonium reacted with local lesions, and at 9 dpi, newly developed leaves of inoculated S. lycopersicum plants showed necrotic spot and concentric ring symptoms, whereas C. annuum exhibited concentric rings at 10 dpi. Inoculated zinnia plants showed systemic chlorotic spot and concentric ring symptoms at 20 dpi, indistinguishable from those observed under natural infection. The other inoculated plant species were not symptomatic, nor the virus was detected. PTA-ELISA and RT-PCR confirmed infection with GRSV in symptomatic plants. The amplicons generated by RT-PCR of total RNA extracted from an experimentally infected plant of C. annuum and D. stramonium, and two plants of Zinnia sp. were sent for nucleotide sequencing. The obtained nucleotide sequences (MW629019, MW629020, MW629021, MW629022) shares 100% identity with the nucleotide sequence corresponding to the original GRSV isolate (MW629018) identified in Zinnia sp. This is the first report of the natural occurrence of GRSV in Zinnia sp. in Brazil. Studies on incidence and damage are needed to recommend alternatives for management.