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https://www.readbyqxmd.com/read/28330186/a-comprehensive-study-of-one-step-selenization-process-for-cu-in1-x-ga-x-se2-thin-film-solar-cells
#1
Shih-Chen Chen, Sheng-Wen Wang, Shou-Yi Kuo, Jenh-Yih Juang, Po-Tsung Lee, Chih Wei Luo, Kaung-Hsiung Wu, Hao-Chung Kuo
In this work, aiming at developing a rapid and environmental-friendly process for fabricating CuIn1-x Ga x Se2 (CIGS) solar cells, we demonstrated the one-step selenization process by using selenium vapor as the atmospheric gas instead of the commonly used H2Se gas. The photoluminescence (PL) characteristics indicate that there exists an optimal location with superior crystalline quality in the CIGS thin films obtained by one-step selenization. The energy dispersive spectroscopy (EDS) reveals that the Ga lateral distribution in the one-step selenized CIGS thin film is intimately correlated to the blue-shifted PL spectra...
December 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28329947/-air-pollution-and-adverse-birth-outcome-in-china-a-comprehensive-review
#2
P F Zhu, Y Zhang, J Ban, T T Li, X M Shi
Objective: To summarize the progress in the research of the association between air pollution and adverse birth outcomes in China. Methods: A literature retrieval was conducted by using the databases of CNKI, Wanfang, Pubmed, Science Direct, and Web of Science to select relevant research papers published before 30(th), June 2016 in China according to inclusion criteria. Finally, 27 papers were included in analysis. Results: Exposure to particulate matter (PM(10)), sulfur dioxide (SO(2)), nitrogen dioxide (NO(2)), total suspended particles (TSP) during pregnancy might increase risk for low birth weight; exposure to PM(10), SO(2), NO(2) during pregnancy might increase risk for premature birth; and exposure to SO(2), NO(2), ozone (O(3)), and PM(10) during pregnancy might increase risk for congenital heart diseases and other birth defects...
March 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28329934/-hiv-infection-and-associated-factors-in-hiv-antibody-positive-clients-of-female-sex-workers-recently-reported-in-shaanxi-province
#3
T Hu, W H Chang, M Y Zhang
Objective: To investigate the current status of HIV infection and the related factors in HIV antibody positive clients of female sex workers (FSWs) recently reported in Shaanxi province. Methods: The HIV/AIDS cases newly diagnosed in males living in Shaanxi from January 1th of 2013 to June 30th of 2014 were selected and those infected through " commercial heterosexual behavior" were identified. The information about their demographic characteristics, previous unprotected heterosexual sex and the sample sources were collected, and serum or plasma samples were collected from them and tested with BED-CEIA...
March 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28329749/urethral-reconstruction-using-everted-saphenous-vein-graft-in-a-rabbit-model-one-year-outcomes
#4
Yujie Xu, Zhou Shen, Gang Liu, Bing Liu, Xiaoliang Hua, Yechen Xiang, Chuanjiang Dong, Bing Li
OBJECTIVE: To investigate the efficacy of using everted saphenous vein graft for urethral reconstruction. MATERIALS AND METHODS: Thirty-five adult male rabbits were divided into 7 groups randomly: experimental group A, B, C, D, E, stricture control group and normal control group (n = 5). In experimental groups and the stricture control group, a urethral mucosa defect (1.5 × 0.8 cm) was created in each rabbit. In experimental groups, a 2-cm long saphenous vein graft was harvested and incised longitudinally and urethral reconstruction was carried out using the everted saphenous vein patch...
March 23, 2017: Urologia Internationalis
https://www.readbyqxmd.com/read/28329726/folate-biofortification-in-food-crops
#5
REVIEW
Simon Strobbe, Dominique Van Der Straeten
Folates are essential vitamins in the human diet. Folate deficiency is still very common, provoking disorders such as birth defects and anemia. Biofortification via metabolic engineering is a proven powerful means to alleviate folate malnutrition. A variety of metabolic engineering approaches have been successfully implemented in different crops and tissues. Furthermore, ensuring folate stability is crucial for long-term storage of crop products. However, the current strategies, shown to be successful in rice and tomato, will need to be fine-tuned to enable adequate biofortification of other staples such as potato, wheat and cassava...
March 19, 2017: Current Opinion in Biotechnology
https://www.readbyqxmd.com/read/28329690/tissue-myeloid-progenitors-differentiate-into-pericytes-through-tgf-%C3%AE-signaling-in-developing-skin-vasculature
#6
Tomoko Yamazaki, Ani Nalbandian, Yutaka Uchida, Wenling Li, Thomas D Arnold, Yoshiaki Kubota, Seiji Yamamoto, Masatsugu Ema, Yoh-Suke Mukouyama
Mural cells (pericytes and vascular smooth muscle cells) are essential for the regulation of vascular networks and maintenance of vascular integrity, but their origins are diverse in different tissues and not known in the organs that arise from the ectoderm, such as skin. Here, we show that tissue-localized myeloid progenitors contribute to pericyte development in embryonic skin vasculature. A series of in vivo fate-mapping experiments indicates that tissue myeloid progenitors differentiate into pericytes...
March 21, 2017: Cell Reports
https://www.readbyqxmd.com/read/28329675/trimethylation-and-acetylation-of-%C3%AE-catenin-at-lysine-49-represent-key-elements-in-esc-pluripotency
#7
Katrin Hoffmeyer, Dirk Junghans, Benoit Kanzler, Rolf Kemler
Wnt/β-catenin signaling is required for embryonic stem cell (ESC) pluripotency by inducing mesodermal differentiation and inhibiting neuronal differentiation; however, how β-catenin counter-regulates these differentiation pathways is unknown. Here, we show that lysine 49 (K49) of β-catenin is trimethylated (β-catMe3) by Ezh2 or acetylated (β-catAc) by Cbp. Significantly, β-catMe3 acts as a transcriptional co-repressor of the neuronal differentiation genes sox1 and sox3, whereas β-catAc acts as a transcriptional co-activator of the key mesodermal differentiation gene t-brachyury (t-bra)...
March 21, 2017: Cell Reports
https://www.readbyqxmd.com/read/28329668/stevens-johnson-syndrome-and-toxic-epidermal-necrolysis-in-us-adults
#8
Derek Y Hsu
Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN) are life-threatening disorders. The incidences, mortality and cost of SJS and TEN in US adults are not well-characterized. We analyzed data from the 2009-2012 Nationwide Inpatient Sample, containing a representative 20% sample of all hospitalizations in the US. SJS, SJS/TEN and TEN were identified by a validated algorithm using ICD-9- CM codes. The mean incidences of SJS, SJS/TEN and TEN were 9.3, 1.6, and 1.9 per million people per year, respectively...
September 15, 2016: Dermatology Online Journal
https://www.readbyqxmd.com/read/28329464/left-ventricular-retraining-and-double-switch-in-patients-with-congenitally-corrected-transposition-of-the-great-arteries
#9
Ali N Ibrahimiye, Richard D Mainwaring, William L Patrick, Laura Downey, Vamsi Yarlagadda, Frank L Hanley
PURPOSE: Congenitally corrected transposition of the great arteries (CC-TGA) is a complex form of congenital heart defect with numerous anatomic subgroups. The majority of patients with CC-TGA are excellent candidates for a double-switch procedure. However, in the absence of an unrestrictive ventricular septal defect or subpulmonary stenosis, the left ventricle (LV) may undergo involution and require retraining prior to double switch. The purpose of this study was to review our experience with patients having CC-TGA who required LV retraining prior to a double-switch procedure...
March 2017: World Journal for Pediatric & Congenital Heart Surgery
https://www.readbyqxmd.com/read/28329461/cardiac-function-after-tetralogy-of-fallot-complete-atrioventricular-canal-repair
#10
Elizabeth H Stephens, Jennifer Tingo, Marc Najjar, Betul Yilmaz, Stéphanie Levasseur, Jeffrey D Dayton, Ralph S Mosca, Paul Chai, Jan M Quaegebeur, Emile A Bacha
BACKGROUND: Repair of complete atrioventricular canal (CAVC) with tetralogy of Fallot (TOF) is a challenging operation increasingly being performed as a complete, primary repair in infancy. Previous studies have focused on perioperative outcomes; however, midterm valve function, ventricular function, and residual obstruction have received little attention. METHODS: We retrospectively reviewed 20 patients who underwent CAVC/TOF repair (January 2005 to December 2014)...
March 2017: World Journal for Pediatric & Congenital Heart Surgery
https://www.readbyqxmd.com/read/28329457/hemolysis-during-open-heart-surgery-with-vacuum-assisted-venous-drainage-at-different-negative-pressures-in-pediatric-patients-weighing-less-than-10-kilograms
#11
Jae Gun Kwak, Jinkwon Lee, Minkyoung Park, Yu-Jin Seo, Chang-Ha Lee
BACKGROUND: This study examined the degree of hemolysis during vacuum-assisted venous drainage at different negative pressures to identify an adequate negative pressure that provides effective venous drainage without significant hemolysis in open-heart surgery in children weighing less than 10 kg. METHODS: Patients weighing less than 10 kg who underwent surgery for ventricular septal defect or atrial septal defect from 2011 to 2014 were enrolled. We used one of four negative pressures (20, 30, 40, or 60 mm Hg) for each patient...
March 2017: World Journal for Pediatric & Congenital Heart Surgery
https://www.readbyqxmd.com/read/28329310/immunologic-pathways-that-predict-mortality-in-hiv-infected-ugandans-initiating-art
#12
Sulggi Lee, Helen Byakwaga, Yap Boum, Tricia H Burdo, Kenneth C Williams, Michael M Lederman, Yong Huang, Russell P Tracy, Huyen Cao, Jessica E Haberer, Annet Kembabazi, David R Bangsberg, Jeffrey N Martin, Peter W Hunt
Plasma kynurenine/tryptophan (KT) ratio, a marker of adaptive immune defects, strongly predicts mortality during treated HIV disease in Ugandans compared to U.S.-based populations, Here, KT ratio, and T cell and plasma biomarkers of immune activation were measured among 535 HIV-infected Ugandans prior to ART initiation and at month 6 of viral suppression. Month 6 KT ratio (aHR=2.74), sCD14 (aHR=2.32), IL-6 (aHR=2.34), and D dimer (aHR=1.95) were associated with mortality occurring ≥6 months after ART initiation, KT ratio remained significantly predictive of mortality even after adjustment for the additional biomarkers, suggesting an independent contribution to clinical outcomes in resource-limited settings...
March 1, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28329266/hyperkalemic-arrest-and-the-aortic-no-touch-technique-in-minimally-invasive-atrial-septal-defect-closure-in-adults
#13
Tatsuya Tarui, Go Watanabe, Norihiko Ishikawa, Ryuta Kiuchi
To avoid aortic cross-clamping and cardioplegic ischaemia, we propose the induction of hyperkalemic arrest and using aortic no-touch technique in minimally invasive atrial septal defect (ASD) closure. Twenty-eight patients were included in this study. After establishment of cardiopulmonary bypass, potassium was administered to induce hyperkalemic arrest. The mean dose of injected potassium was 1.2 ± 0.45 mEq/kg. Following the direct closure of the ASD, potassium was filtered out using a hemodialyzer. At the end of the operation, serum potassium was normalized to 4...
February 17, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28329206/precise-moulded-autologous-pericardial-configurations-for-aortic-cusp-reconstruction
#14
Mohammad Bashar Izzat, Khaled Hamzeh, Farouk Almohammad
OBJECTIVES: In order to facilitate surgical repair of complex aortic cusp deformities and restoration of aortic valve competence, new moulds were developed to shape the glutaraldehyde-treated autologous pericardium into precise cusp-like configurations that can be used in aortic cusp reconstruction. METHODS: The new moulds embodied the natural geometry of single aortic cusps, and a series of moulds were made available to correspond with all potential aortic cusp sizes...
February 27, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28329178/intraoperative-coronary-revision-but-not-coronary-pattern-is-associated-with-mortality-after-arterial-switch-operation%C3%A2
#15
Matteo Trezzi, Angelo Polito, Antonio Albano, Sonia B Albanese, Enrico Cetrano, Adriano Carotti
OBJECTIVES: We sought to determine differences in baseline characteristics and clinical outcomes in a consecutive series of patients undergoing arterial switch operation (ASO), assessing the effect of coronary anatomy on postoperative mortality, both overall and adjusted for surgical era. METHODS: From January 2000 to May 2015, 283 consecutive patients underwent ASO for transposition of the great arteries. A total of 103 patients (36.4%) had an associated ventricular septal defect and 23 (8...
March 18, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28329049/surgical-treatment-of-pulmonary-atresia-with-major-aortopulmonary-collateral-arteries-in-83-consecutive-patients%C3%A2
#16
Oleksandr D Babliak, Yaroslav B Mykychak, Oleksandra O Motrechko, Illya M Yemets
OBJECTIVES: This article reports the safety and efficacy of a morphology-based algorithm for the surgical management of pulmonary atresia and ventricular septal defect with major aortopulmonary collateral arteries. METHODS: A total of 83 patients were operated from 2007 to 2014 using 3 surgical approaches: one-stage total repair, one-stage unifocalization with central shunt and delayed total repair and multistage unifocalization with subsequent total repair. Patients were divided into 2 groups depending on the surgical strategy used to choose the surgical approach...
March 2, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28328947/a-spontaneous-mutation-in-kdsd-a-biosynthesis-gene-for-3-deoxy-d-manno-octulosonic-acid-occurred-in-a-ciprofloxacin-resistant-strain-of-francisella-tularensis-and-caused-a-high-level-of-attenuation-in-murine-models-of-tularemia
#17
Taylor Chance, Jennifer Chua, Ronald G Toothman, Jason T Ladner, Jonathan E Nuss, Jo Lynne Raymond, Fabrice V Biot, Samandra Demons, Lynda Miller, Stephanie Halasohoris, Sherry Mou, Galina Koroleva, Sean Lovett, Gustavo Palacios, Nicholas J Vietri, Patricia L Worsham, Christopher K Cote, Todd M Kijek, Joel A Bozue
Francisella tularensis, a gram-negative facultative intracellular bacterial pathogen, is the causative agent of tularemia and able to infect many mammalian species, including humans. Because of its ability to cause a lethal infection, low infectious dose, and aerosolizable nature, F. tularensis subspecies tularensis is considered a potential biowarfare agent. Due to its in vitro efficacy, ciprofloxacin is one of the antibiotics recommended for post-exposure prophylaxis of tularemia. In order to identify therapeutics that will be efficacious against infections caused by drug resistant select-agents and to better understand the threat, we sought to characterize an existing ciprofloxacin resistant (CipR) mutant in the Schu S4 strain of F...
2017: PloS One
https://www.readbyqxmd.com/read/28328655/vascularized-composite-allotransplantation-an-emerging-concept-for-burn-reconstruction
#18
Zhi Yang Ng, Alexandre G Lellouch, Tessa Drijkoningen, Irene A Chang, David H Sachs, Curtis L Cetrulo
Vascularized composite allotransplantation (VCA) has demonstrated utility in the reconstruction of extensive soft-tissue defects following severe burns. However, pre-VCA events such as multiple transfusions, previous transplantation and pregnancies, the use of skin allografts, and mechanical support devices may result in sensitization and ultimately exclude a burn patient, who may benefit most through VCA, from a hand or face transplant. The authors sought to identify the immunologic challenges involved. All reported VCA cases up to July 2016 were reviewed...
March 15, 2017: Journal of Burn Care & Research: Official Publication of the American Burn Association
https://www.readbyqxmd.com/read/28328636/mercedes-flap-with-releasing-incisions-for-scalp-defects
#19
Francisco Russo
INTRODUCTION: The reconstruction of scalp defects is surgically challenging due to the limited distensibility in the area. OBJECTIVES: To describe a new variant of the Mercedes flap with releasing incisions for the reconstruction of medium-sized scalp defects. MATERIALS AND METHODS: Pigs' feet were used as the experimental model for the design of this new variant. Different designs were created, and the best result was achieved by measuring the tension of the edges using tensiometers...
March 21, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28328632/use-of-processed-nerve-allografts-to-repair-nerve-injuries-greater-than-25-mm-in-the-hand
#20
Brian Rinker, Jozef Zoldos, Renata V Weber, Jason Ko, Wesley Thayer, Jeffrey Greenberg, Fraser J Leversedge, Bauback Safa, Gregory Buncke
Processed nerve allografts (PNAs) have been demonstrated to have improved clinical results compared with hollow conduits for reconstruction of digital nerve gaps less than 25 mm; however, the use of PNAs for longer gaps warrants further clinical investigation. Long nerve gaps have been traditionally hard to study because of low incidence. The advent of the RANGER registry, a large, institutional review board-approved, active database for PNA (Avance Nerve Graft; AxoGen, Inc, Alachua, FL) has allowed evaluation of lower incidence subsets...
March 21, 2017: Annals of Plastic Surgery
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