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https://www.readbyqxmd.com/read/29785230/refractive-indices-of-layers-and-optical-simulations-of-cu-in-ga-se-2-solar-cells
#1
Romain Carron, Enrico Avancini, Thomas Feurer, Benjamin Bissig, Paolo A Losio, Renato Figi, Claudia Schreiner, Melanie Bürki, Emilie Bourgeois, Zdenek Remes, Milos Nesladek, Stephan Buecheler, Ayodhya N Tiwari
Cu(In,Ga)Se2 based solar cells have reached efficiencies close to 23%. Further knowledge-driven improvements require accurate determination of the material properties. Here, we present refractive indices for all layers in Cu(In,Ga)Se2 solar cells with high efficiency. The optical bandgap of Cu(In,Ga)Se2 does not depend on the Cu content in the explored composition range, while the absorption coefficient value is primarily determined by the Cu content. An expression for the absorption spectrum is proposed, with Ga and Cu compositions as parameters...
2018: Science and Technology of Advanced Materials
https://www.readbyqxmd.com/read/29784000/the-homing-of-bone-marrow-stem-cells-is-differentially-activated-in-ischemic-and-valvular-heart-diseases-and-influenced-by-beta-blockers
#2
Melissa Kristocheck, Lucinara D Dias, Carine Ghem, Bruna Eibel, Renato A K Kalil, Melissa M Markoski
BACKGROUND: Cell homing is the mechanism by which an injury releases signaling molecules that cause recruitment, proliferation, migration and differentiation of progenitor cells. Stromal derived factor-1 (SDF-1) and its receptor CXCR4 are key molecules involved in homing and little is known about their activation in cardiopathies. Here, we assessed the homing activation status of bone marrow cells (BMC) concerning the SDF-1 and CXCR4 expression in ischemic (IHD) and valvular (VHD) heart diseases...
May 21, 2018: Journal of Translational Medicine
https://www.readbyqxmd.com/read/29782551/structural-insights-on-the-efficient-catalysis-of-hydroperoxide-reduction-by-ohr-crystallographic-and-molecular-dynamics-approaches
#3
Erika Piccirillo, Thiago G P Alegria, Karen F Discola, José R R Cussiol, Renato M Domingos, Marcos A de Oliveira, Leandro de Rezende, Luis E S Netto, Antonia T-do Amaral
Organic hydroperoxide resistance (Ohr) enzymes are highly efficient Cys-based peroxidases that play central roles in bacterial response to fatty acid hydroperoxides and peroxynitrite, two oxidants that are generated during host-pathogen interactions. In the active site of Ohr proteins, the conserved Arg (Arg19 in Ohr from Xylella fastidiosa) and Glu (Glu51 in Ohr from Xylella fastidiosa) residues, among other factors, are involved in the extremely high reactivity of the peroxidatic Cys (Cp) toward hydroperoxides...
2018: PloS One
https://www.readbyqxmd.com/read/29782245/biparametric-prostate-mr-imaging-protocol-time-to-revise-pi-rads-version-2
#4
Arnaldo Stanzione, Sirio Cocozza, Renato Cuocolo, Massimo Imbriaco
No abstract text is available yet for this article.
June 2018: Radiology
https://www.readbyqxmd.com/read/29781553/effects-of-melatonin-on-thymic-and-oxidative-stress-dysfunctions-during-trypanosoma-cruzi-infection
#5
Vânia Brazão, Rafaela Pravato Colato, Fabricia Helena Santello, Gabriel Tavares do Vale, Natália de Almeida Gonzaga, Carlos Renato Tirapelli, José Clóvis do Prado
Although the exact etiology of Chagas' disease is not completely elucidated, thymic atrophy and oxidative stress are believed to be important contributors to the pathogenesis during acute Trypanosoma cruzi (T. cruzi) infection. We hypothethized that exogenous melatonin, administered by gavage (5 mg/kg, p.o., gavage) to young (5 weeks old) and middle-aged (18 months old) male Wistar rats would modulate thymic oxidative damage and reverse the age-related thymus regression during T. cruzi acute infection. Increased levels of superoxide anion (O2 - ) were detected in the thymus of infected animals and treatment with melatonin reverted this response...
May 21, 2018: Journal of Pineal Research
https://www.readbyqxmd.com/read/29780037/past-and-present-work-practices-of-european-interventional-cardiologists-in-the-context-of-radiation-protection-of-the-eye-lens-results-of-the-euraloc-study
#6
Joanna Karolina Domienik-Andrzejewska, Olivera Ciraj-Bjelac, Panagiotis Askounis, Peter Covens, Octavian Dragusin, Sophie Jacob, Jad Farah, Emilio Gianicolo, Renato Padovani, Pedro Manuel Peixoto Teles, Anders Widmark, Lara Struelens
This paper investigates over five decades of work practices in interventional cardiology with special emphasis on radiation protection. The analysis is based on the data from more than 400 cardiologists from different European countries recruited for EURALOC study collected in the period from 2014 to 2016. Information on the types of procedures performed and their annual mean number, fluoroscopy time, access site choice, X-ray units and radiation protection means used was collected using an occupational questionnaire...
May 21, 2018: Journal of Radiological Protection: Official Journal of the Society for Radiological Protection
https://www.readbyqxmd.com/read/29778028/functional-lignocellulosic-material-for-the-remediation-of-copper-ii-ions-from-water-towards-the-design-of-a-wood-filter
#7
Selin Vitas, Tobias Keplinger, Nico Reichholf, Renato Figi, Etienne Cabane
In this study, the chemical modification of bulk beech wood is described along with its utilization as biosorbent for the remediation of copper from water. The material was prepared by esterification using anhydrides, and reaction conditions were optimized to propose a greener process, in particular by reducing the amount of solvent. This modification yields a lignocellulosic material whose native structure is preserved, with an increased amount of carboxylic groups (up to 3 mmol/g). We demonstrate that the material can remove up to 95% of copper from low concentration solutions (100- 500 ppm)...
May 9, 2018: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/29777993/toenail-selenium-genetic-variation-in-selenoenzymes-and-risk-and-outcome-in-glioma
#8
Noah C Peeri, Jordan H Creed, Gabriella M Anic, Reid C Thompson, Jeffrey J Olson, Renato V LaRocca, Sajeel A Chowdhary, John D Brockman, Travis A Gerke, L Burton Nabors, Kathleen M Egan
BACKGROUND: Selenium is an essential trace element obtained through diet that plays a critical role in DNA synthesis and protection from oxidative damage. Selenium intake and polymorphisms in selenoproteins have been linked to the risk of certain cancers though data for glioma are sparse. METHODS: In a case-control study of glioma, we examined the associations of selenium in toenails and genetic variants in the selenoenzyme pathway with the risk of glioma and patient survival...
May 16, 2018: Cancer Epidemiology
https://www.readbyqxmd.com/read/29777623/complement-factor-h-as-a-potential-atherogenic-marker-in-chronic-chagas-disease
#9
Kárita Cláudia Freitas Lidani, Thaisa Lucas Sandri, Fabiana Antunes Andrade, Lorena Bavia, Renato Nisihara, Iara J Messias Reason
AIMS: We aimed to investigate the association between plasma levels of complement Factor H (FH) with cardiac involvement, inflammatory and cardiometabolic parameters in patients with chronic Chagas disease (CD). METHODS: FH plasmatic levels were determined in 80 chronic CD patients. Glycemic index, lipidogram (high-density lipoprotein cholesterol HDL-C, low-density lipoprotein cholesterol LDL-C, triglycerides and total cholesterol), and Ultrasensitive C-Reactive Protein (uCRP) values were obtained from medical records...
May 19, 2018: Parasite Immunology
https://www.readbyqxmd.com/read/29775973/safety-model-for-the-introduction-of-robotic-surgery-in-gynecology
#10
Mariano Tamura Vieira Gomes, Beatriz Taliberti da Costa Porto, Jose Pedro Parise Filho, Ana Luiz Vasconcelos, Bruna Fernanda Bottura, Renato Moretti Marques
OBJECTIVE:  To analyze the perioperative results and safety of performing gynecological surgeries using robot-assisted laparoscopy during implementation of the technique in a community hospital over a 6-year period. METHODS:  This was a retrospective observational study in which the medical records of 274 patients who underwent robotic surgery from September 2008 to December 2014 were analyzed. We evaluated age, body mass index (BMI), diagnosis, procedures performed, American Society of Anesthesiologists (ASA) classification, the presence of a proctor (experienced surgeon with at least 20 robotic cases), operative time, transfusion rate, perioperative complications, conversion rate, length of stay, referral to the intensive care unit (ICU), and mortality...
May 18, 2018: Revista Brasileira de Ginecologia e Obstetrícia
https://www.readbyqxmd.com/read/29775567/characterization-of-the-gonadotropin-releasing-hormone-system-in-the-neotropical-teleost-steindachneridion-parahybae-during-the-annual-reproductive-cycle-in-captivity
#11
Renato Massaaki Honji, Danilo Caneppele, Matias Pandolfi, Fabiana Laura Lo Nostro, Renata Guimarães Moreira
This study evaluated by immunohistochemical and western blot methods, the distribution of two distinct gonadotropin-releasing hormones (GnRHs), corresponding to catfish GnRH (cfGnRH or GnRH1) and chicken-II GnRH (cGnRH-II or GnRH2), in Steindachneridion parahybae females in captivity, focusing these analyses on the reproductive cycle by semi-quantification of optical density (OD). Further, we found that the GnRH neuronal systems co-localized with their respective GnRH-associated peptides (GAPs). A group of neurons immunoreactive (ir) to GnRH1 were identified along the ventral region of the olfactory bulb (vOB) in the telencephalon (vTel) and in the main areas of the diencephalon (especially the medial basal hypothalamus, HBM), including fibers extending into the pituitary gland...
May 15, 2018: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/29773228/changes-in-mucins-and-matrix-metalloproteases-in-the-endometrium-of-early-pregnant-alpacas-vicugna-pacos
#12
Daniela E Barraza, Renato Zampini, Silvana A Apichela, Joel I Pacheco, Martin E Argañaraz
South American Camelids (SAC) have unique reproductive features, one of which is that 98% of the pregnancies develop in the left uterine horn. Furthermore, early pregnancy is an uncharacterized process in these species, especially in regard to the ultrastructural, biochemical and genetic changes that the uterine epithelial surface undergoes to allow embryo implantation. The present study describes the uterine horn luminal surface and the characteristics of the mucinous glycocalyx in non-pregnant and early pregnant (15 days) female alpacas...
May 14, 2018: Acta Histochemica
https://www.readbyqxmd.com/read/29773145/pathological-and-molecular-characterization-of-systemic-isosporosis-atoxoplasmosis-in-captive-green-winged-saltator-saltator-similis
#13
Ayisa Rodrigues de Oliveira, Tayse Domingues de Souza, Juliana P S Mol, Mayra Cunha Flecher, Emy Hiura, Renato Lima Santos
Systemic isosporosis, also called atoxoplasmosis or visceral coccidiosis, is a disease that affects birds in general. Pathogenesis of systemic isosporosis and its etiologic agent have not been well characterized, but taxonomically Atoxoplasma is currently considered a junior objective synonym of Isospora. The present report aimed to describe pathological and molecular findings of systemic isosporosis in captive green-winged saltators (Saltator similis) from the State of Espírito Santo, Brazil. In a commercial breeding facility eleven birds with two to nine months of age died from 2015 to 2016...
May 15, 2018: Veterinary Parasitology
https://www.readbyqxmd.com/read/29772435/aliskiren-preclinical-evidence-for-the-treatment-of-hyperproliferative-skin-disorders
#14
Priscila Lúcia Pawloski, Camila Guimarães Moreira, Cintia Delai Silva Horinouchi, Daniel Fernandes, Luiz Renato Olchanheski, Willian Machado, Daniela Almeida Cabrini, Michele Dietrich, Kátia Paludo, Michel Fleith Otuki
Psoriasis is a complex inflammatory and hyperproliferative skin disease. The pathogenesis and mechanisms involved are not completely understood, which makes treatment a difficult issue. Angiotensin II, the most active peptide of the renin-angiotensin system, seems to be involved in processes related to psoriasis pathogenesis, such as inflammation and cell proliferation. The aim of this study was to investigate the influence of renin inhibition on inflammation parameters and keratinocyte proliferation in a mouse model of chronic skin inflammation induced by croton oil...
May 14, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29769155/fostering-career-awareness-in-elementary-schools-evaluation-of-an-intervention-proposal
#15
Renato Gomes Carvalho, Margarida Pocinho, Débora Fernandes
Research literature has been increasingly focusing on children's career development, especially when school contexts are considered. In the present study, we evaluate the efficacy of a short-term intervention program designed to foster career awareness in elementary school. The sample consisted of 155 Portuguese fifth- and sixth-grade students, aged nine to fifteen years old (M = 11, SD = 1). With a quasi-experimental design, the sample was divided into two groups, namely, the participants in the program and the controls...
May 17, 2018: Spanish Journal of Psychology
https://www.readbyqxmd.com/read/29768929/current-concepts-in-revision-hip-arthroscopy
#16
Renato Locks, Ioanna Bolia, Hajime Utsunomiya, Karen Briggs, Marc J Philippon
Hip arthroscopy is an evolving procedure and its indications have expanded. The number of patients undergoing this procedure has increased significantly as well as the number of surgeons being trained. This has resulted in a notable increase in post-operative complication rates creating the need to develop advanced hip arthroscopic techniques. Revision hip arthroscopy is often complex and many factors should be considered to achieve a satisfactory clinical outcome. Careful pre-operative planning and agreement of expectations between the physician and patient regarding the procedure are important...
May 1, 2018: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/29768598/influence-of-environmental-conditions-on-the-prevalence-of-systemic-hypertension-in-two-riverine-communities-in-the-amazon-brazil
#17
Duarcides Ferreira Mariosa, Renato Ribeiro Nogueira Ferraz, Edinaldo Nelson Dos Santos-Silva
This article discusses the influence of environmental conditions on the prevalence of systemic hypertension in two riverine communities in the Sustainable Development Reserve of Tupé, Manaus, Amazonas, Brazil, through an ecological study of multiple groups and contextual analysis carried out with the local inhabitants. To identify the environmental etiology describing the risk of disease development, the study compares demographics, incidence rates and common daily practices in these communities, using data collected in the field, between 2012 and 2014, as well as values provided by IBGE, originally from National Health Survey, 2013...
May 2018: Ciência & Saúde Coletiva
https://www.readbyqxmd.com/read/29768545/hcmv-ul97-phosphotransferase-gene-mutations-may-be-associated-with-antiviral-resistance-in-immunocompromised-patients-in-bel%C3%A3-m-pa-northern-brazil
#18
Dorotéa de Fátima Lobato da Silva, Jedson Ferreira Cardoso, Sandro Patroca da Silva, Leda Mani França Arruda, Renato Lopes Fernandes de Medeiros, Marluce Matos Moraes, Rita Catarina Medeiros Sousa
INTRODUCTION: Human cytomegalovirus is one of the causes of opportunist infections in immunocompromised patients, and is triggered by factors such as state of viral latency, weakened immune responses, and development of antiviral resistance to ganciclovir, the only drug offered by the public health system in Brazil to treat the infection. The goal of this study was to identify mutations that may be associated with antiviral resistance in immunocompromised patients. METHODS: Molecular analysis was performed in 82 blood samples and subjected to genomic DNA extraction by a silica-based method...
March 2018: Revista da Sociedade Brasileira de Medicina Tropical
https://www.readbyqxmd.com/read/29768541/vascular-endothelial-growth-factor-association-with-angiopoietin-1-promotes-improvement-in-ventricular-function-after-ischemic-cardiomyopathy-induced-in-mini-pigs
#19
André Lacerda de Abreu Oliveira, Jussara Peters Scheffer, Melissa Markoski, Andreia Koche, Alexsandra Balbinot, Fernanda Antunes, Renato Kalil
PURPOSE: To investigate the safety and clinical, hemodynamic and tissue improvement ability in mini pigs undergoing cell and gene therapy for the treatment of acute myocardial infarction. METHODS: Thirty-two mini pigs Br1 lineage, 12 months old, undergoing induction of acute myocardial infarction by occlusion of the diagonal branch of the paraconal coronary. They were divided into 4 groups: one control group and 3 treatment groups (cell therapy and gene cell therapy)...
April 2018: Acta Cirúrgica Brasileira
https://www.readbyqxmd.com/read/29767961/real-time-monitoring-of-tricarboxylic-acid-metabolites-in-exhaled-breath
#20
Alberto Tejero Rioseras, Kapil Dev Singh, Nora Nowak, Martin T Gaugg, Tobias Bruderer, Renato Zenobi, Pablo M-L Sinues
The tricarboxylic acid (TCA) cycle is one of the most important metabolic pathway for cellular respiration in aerobic organisms. It provides and collects intermediates for many other interconnecting pathways and acts as a hub connecting metabolism of carbohydrates, fatty acids, and amino acids. Alteration in intracellular levels of its intermediates has been linked with a wide range of illnesses ranging from cancer to cellular necrosis or liver cirrhosis. Therefore, there exists an intrinsic interest in monitoring such metabolites...
May 16, 2018: Analytical Chemistry
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