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https://www.readbyqxmd.com/read/28441607/toxicity-assessment-of-zno-decorated-au-nanoparticles-in-the-mediterranean-clam-ruditapes-decussatus
#1
Badreddine Sellami, Amine Mezni, Abdelhafidh Khazri, Imen Bouzidi, Wiem Saidani, David Sheehan, Hamouda Beyrem
The synthesis of hybrid nanomaterials has greatly increased in recent years due to their special physical and chemical properties. However, information regarding the environmental toxicity associated with these chemicals is limited, in particular in the aquatic environment. In the present study, an experiment was performed in which the marine bivalve (Ruditapes decussatus) was exposed for 14days to 2 concentrations of zinc oxide-decorated Au nanoparticles (Au-ZnONPs: Au-ZnONP50=50μg/L; Au-ZnONP100=100μg/L)...
April 15, 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/28441107/coping-with-sexual-orientation-related-minority-stress
#2
Russell B Toomey, Caitlin Ryan, Rafael M Diaz, Stephen T Russell
Little is known about how adolescents cope with minority stressors related to sexual orientation. This study examined 245 lesbian, gay, and bisexual (LGB) young adult's (ages 21-25) retrospective reports of coping in response to LGB minority stress during adolescence (ages 13-19) to test the reliability and validity of a measure of minority stress coping. Further, the study examined associations between LGB minority stress coping and young adult psychosocial adjustment and high school attainment. Validation and reliability was found for three minority stress coping strategies: LGB-specific strategies (e...
April 25, 2017: Journal of Homosexuality
https://www.readbyqxmd.com/read/28439626/reliability-and-validity-of-the-12-item-whodas-2-0-in-patients-with-kashin-beck-disease
#3
Mohammad Imran Younus, Di-Miao Wang, Fang-Fang Yu, Hua Fang, Xiong Guo
The purpose of this study was to check the reliability and validity of the 12-item Chinese version of the World Health Organization Disability Assessment Schedule 2.0 (WHODAS 2.0) for the assessment of disability in patients with Kashin-Beck disease (KBD). We recruited 219 patients with KBD from the high-risk KBD area in the Shaanxi province, using stratified multistage random sampling. We assessed each patient using the Chinese version of the 12-item WHODAS 2.0 and the Western Ontario and McMaster Universities Index of Osteoarthritis (WOMAC)...
April 24, 2017: Rheumatology International
https://www.readbyqxmd.com/read/28437640/the-woven-fiber-organic-electrochemical-transistors-based-on-polypyrrole-nanowires-reduced-graphene-oxide-composites-for-glucose-sensing
#4
Yuedan Wang, Xing Qing, Quan Zhou, Yang Zhang, Qiongzhen Liu, Ke Liu, Wenwen Wang, Mufang Li, Zhentan Lu, Yuanli Chen, Dong Wang
Novel woven fiber organic electrochemical transistors based on polypyrrole (PPy) nanowires and reduced graphene oxide (rGO) have been prepared. SEM revealed that the introduction of rGO nanosheets could induce the growth and increase the amount of PPy nanowires. Moreover, it could enhance the electrical performance of fiber transistors. The hybrid transistors showed high on/off ratio of 10(2), fast switch speed, and long cycling stability. The glucose sensors based on the fiber organic electrochemical transistors have also been investigated, which exhibited outstanding sensitivity, as high as 0...
April 14, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28436005/fast-and-reliable-strain-characterization-of-streptomyces-lividans-through-micro-scale-cultivation
#5
Joachim Koepff, Matthias Keller, C Konstantinos Tsolis, Tobias Busche, Christian Rückert, Mohamed B Hamed, Jozef Anné, Joern Kalinowski, Wolfgang Wiechert, Anastassios Economou, Marco Oldiges
Filamentous organisms of the genus Streptomyces play an important role in industrial production processes, due to their extensive secondary metabolism variability, as well as their ability to secrete efficiently large amounts of (heterologous) proteins. While genetic engineering tools are available to rapidly build up large strain libraries, the subsequent strain screening and bioprocess development still constitutes a bottleneck. This is due to the lack of reliable parallelized and accelerated cultivation techniques for morphologically challenging organisms...
April 24, 2017: Biotechnology and Bioengineering
https://www.readbyqxmd.com/read/28435344/development-of-performance-and-error-metrics-for-ultrasound-guided-axillary-brachial-plexus-block
#6
Osman M Ahmed, Brian D O'Donnell, Anthony G Gallagher, George D Shorten
PURPOSE: Change in the landscape of medical education coupled with a paradigm shift toward outcome-based training mandates the trainee to demonstrate specific predefined performance benchmarks in order to progress through training. A valid and reliable assessment tool is a prerequisite for this process. The objective of this study was to characterize ultrasound-guided axillary brachial plexus block to develop performance and error metrics and to verify face and content validity using a modified Delphi method...
2017: Advances in Medical Education and Practice
https://www.readbyqxmd.com/read/28424823/-coma-in-the-emergency-room
#7
M Braun, C J Ploner, T Lindner, M Möckel, W U Schmidt
Coma of unknown origin (CUO) is a frequent unspecific emergency symptom associated with a high mortality. A fast diagnostic work-up is essential given the wide spectrum of underlying diagnoses that are made up of approximately 50% primary central nervous system (CNS) pathologies and approximately 50% extracerebral, almost exclusively internal medical causes. Despite the high mortality associated with this symptom, there are currently no generally accepted management guidelines for adult patients presenting with CUO...
April 19, 2017: Der Nervenarzt
https://www.readbyqxmd.com/read/28423156/creation-of-an-internal-teledermatology-store-and-forward-system-in-an-existing-electronic-health-record-a-pilot-study-in-a-safety-net-public-health-and-hospital-system
#8
Zachary A Carter, Shauna Goldman, Kristen Anderson, Xiaxiao Li, Linda S Hynan, Benjamin F Chong, Arturo R Dominguez
Importance: External store-and-forward (SAF) teledermatology systems operate separately from the primary health record and have many limitations, including care fragmentation, inadequate communication among clinicians, and privacy and security concerns, among others. Development of internal SAF workflows within existing electronic health records (EHRs) should be the standard for large health care organizations for delivering high-quality dermatologic care, improving access, and capturing other telemedicine benchmark data...
April 19, 2017: JAMA Dermatology
https://www.readbyqxmd.com/read/28422966/taming-the-late-quaternary-phylogeography-of-the-eurasiatic-wild-ass-through-ancient-and-modern-dna
#9
E Andrew Bennett, Sophie Champlot, Joris Peters, Benjamin S Arbuckle, Silvia Guimaraes, Mélanie Pruvost, Shirli Bar-David, Simon J M Davis, Mathieu Gautier, Petra Kaczensky, Ralph Kuehn, Marjan Mashkour, Arturo Morales-Muñiz, Erich Pucher, Jean-François Tournepiche, Hans-Peter Uerpmann, Adrian Bălăşescu, Mietje Germonpré, Can Y Gündem, Mahmoud-Reza Hemami, Pierre-Elie Moullé, Aliye Ötzan, Margarete Uerpmann, Chris Walzer, Thierry Grange, Eva-Maria Geigl
Taxonomic over-splitting of extinct or endangered taxa, due to an incomplete knowledge of both skeletal morphological variability and the geographical ranges of past populations, continues to confuse the link between isolated extant populations and their ancestors. This is particularly problematic with the genus Equus. To more reliably determine the evolution and phylogeographic history of the endangered Asiatic wild ass, we studied the genetic diversity and inter-relationships of both extinct and extant populations over the last 100,000 years, including samples throughout its previous range from Western Europe to Southwest and East Asia...
2017: PloS One
https://www.readbyqxmd.com/read/28419100/validation-of-two-multiplex-platforms-to-quantify-circulating-markers-of-inflammation-and-endothelial-injury-in-severe-infection
#10
Aleksandra Leligdowicz, Andrea L Conroy, Michael Hawkes, Kathleen Zhong, Gerald Lebovic, Michael A Matthay, Kevin C Kain
Biomarkers can prognosticate outcome and enable risk-stratification. In severe infection, focusing on multiple markers reflecting pathophysiological mechanisms of organ injury could enhance management and pathway-directed therapeutics. Limited data exist on the performance of multiplex biomarker platforms. Our goal was to compare endothelial and immune activation biomarkers in severe pediatric infections using two multiplex platforms. Frozen plasma from 410 children presenting to the Jinja Regional Hospital in Uganda with suspected infection was used to measure biomarkers of endothelial (Angiopoietin-2, sFlt-1, sVCAM-1, sICAM-1) and immune (IL-6, IP-10, sTNFR-1, CHI3L1) activation...
2017: PloS One
https://www.readbyqxmd.com/read/28417888/general-concepts-of-patient-safety-for-the-oral-and-maxillofacial-surgeon
#11
REVIEW
David W Todd
Whether managing patients in private offices or as part of a care team at hospitals, oral and maxillofacial surgeons owe it to patients to understand medical error and take action to reduce its frequency and adverse effects. This article reviews general concepts of patient safety, including high-reliability organization, crew resource management, simulation training, root cause analysis, and just culture.
May 2017: Oral and Maxillofacial Surgery Clinics of North America
https://www.readbyqxmd.com/read/28417838/transferring-aviation-practices-into-clinical-medicine-for-the-promotion-of-high-reliability
#12
Nicole Powell-Dunford, Mark K McPherson, Joseph S Pina, Steven J Gaydos
BACKGROUND: Aviation is a classic example of a high reliability organization (HRO)-an organization in which catastrophic events are expected to occur without control measures. As health care systems transition toward high reliability, aviation practices are increasingly transferred for clinical implementation. METHODS: A PubMed search using the terms aviation, crew resource management, and patient safety was undertaken. Manuscripts authored by physician pilots and accident investigation regulations were analyzed...
May 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28417188/comparative-transcriptome-sequence-analysis-of-sporulation-related-genes-of-aspergillus-cristatus-in-response-to-low-and-high-osmolarity
#13
Yongyi Ge, Fengming Yu, Yumei Tan, Xiaoling Zhang, Zuoyi Liu
Aspergillus cristatus undergoes sexual and asexual development under conditions of low and high osmotic pressure, respectively. In this study, the expression levels of 107 genes associated with sexual and asexual development were analysed under conditions of low and high osmotic pressure by RNA sequencing. The results showed that 37 genes were up-regulated and other genes were down-regulated under conditions of high osmotic pressure, with most of the up-regulated genes associated with asexual development and most down-regulated genes associated with sexual development...
April 17, 2017: Current Microbiology
https://www.readbyqxmd.com/read/28410332/sepsis-3-on-the-block-what-does-it-mean-for-preclinical-sepsis-modeling
#14
Marcin F Osuchowski, Christoph Thiemermann, Daniel G Remick
To effectively improve outcomes of septic patients, we first need to elucidate the multifaceted pathogenesis of sepsis syndromes and related inflammatory conditions. In fulfillment of such needs, in February 2016, new definitions for sepsis and septic shock were published under the acronym Sepsis-3. Although aimed at the clinical area, Sepsis-3 will have an inevitable influence upon the field of translational research as well. Sepsis-3 brings a considerable shift regarding the experimental focal point: from inflammatory states (SIRS/CARS) to organ failure (single and multiple) as the decisive factor...
May 2017: Shock
https://www.readbyqxmd.com/read/28409353/assessment-of-spatial-distribution-of-soil-heavy-metals-using-ann-ga-mslr-and-satellite-imagery
#15
Arman Nadari, Mohmmad Amir Delavar, Babak Kaboudin, Mohammad Sagdegh Askari
This study aims to assess and compare heavy metal distribution models developed using stepwise multiple linear regression (MSLR) and neural network-genetic algorithm model (ANN-GA) based on satellite imagery. The source identification of heavy metals was also explored using local Moran index. Soil samples (n = 300) were collected based on a grid and pH, organic matter, clay, iron oxide contents cadmium (Cd), lead (Pb) and zinc (Zn) concentrations were determined for each sample. Visible/near-infrared reflectance (VNIR) within the electromagnetic ranges of satellite imagery was applied to estimate heavy metal concentrations in the soil using MSLR and ANN-GA models...
May 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28403817/homology-to-peptide-pattern-for-annotation-of-carbohydrate-active-enzymes-and-prediction-of-function
#16
P K Busk, B Pilgaard, M J Lezyk, A S Meyer, L Lange
BACKGROUND: Carbohydrate-active enzymes are found in all organisms and participate in key biological processes. These enzymes are classified in 274 families in the CAZy database but the sequence diversity within each family makes it a major task to identify new family members and to provide basis for prediction of enzyme function. A fast and reliable method for de novo annotation of genes encoding carbohydrate-active enzymes is to identify conserved peptides in the curated enzyme families followed by matching of the conserved peptides to the sequence of interest as demonstrated for the glycosyl hydrolase and the lytic polysaccharide monooxygenase families...
April 12, 2017: BMC Bioinformatics
https://www.readbyqxmd.com/read/28402429/a-high-quality-arabidopsis-transcriptome-for-accurate-transcript-level-analysis-of-alternative-splicing
#17
Runxuan Zhang, Cristiane P G Calixto, Yamile Marquez, Peter Venhuizen, Nikoleta A Tzioutziou, Wenbin Guo, Mark Spensley, Juan Carlos Entizne, Dominika Lewandowska, Sara Ten Have, Nicolas Frei Dit Frey, Heribert Hirt, Allan B James, Hugh G Nimmo, Andrea Barta, Maria Kalyna, John W S Brown
Alternative splicing generates multiple transcript and protein isoforms from the same gene and thus is important in gene expression regulation. To date, RNA-sequencing (RNA-seq) is the standard method for quantifying changes in alternative splicing on a genome-wide scale. Understanding the current limitations of RNA-seq is crucial for reliable analysis and the lack of high quality, comprehensive transcriptomes for most species, including model organisms such as Arabidopsis, is a major constraint in accurate quantification of transcript isoforms...
April 11, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28399904/separation-of-photoreceptor-cell-compartments-in-mouse-retina-for-protein-analysis
#18
Kasey Rose, Steven T Walston, Jeannie Chen
BACKGROUND: Light exposure triggers movement of certain signaling proteins within the cellular compartments of the highly polarized rod photoreceptor cell. This redistribution of proteins between the inner and outer segment compartments affects the performance and physiology of the rod cell. In addition, newly synthesized phototransduction proteins traverse from the site of their synthesis in the inner segment, through the thin connecting cilium, to reach their destination in the outer segment...
April 11, 2017: Molecular Neurodegeneration
https://www.readbyqxmd.com/read/28398839/foundational-and-translational-research-opportunities-to-improve-plant-health
#19
Richard W Michelmore, Gitta Coaker, Rebecca Bart, Gwyn A Beattie, Andrew Bent, Toby Bruce, Duncan Cameron, Jeff Dangl, Savithramma Dinesh-Kumar, Robert Edwards, Sebastian Eves-van den Akker, Walter Gassmann, Jean Greenberg, Richard Harrison, Ping He, Jagger Harvey, Alisa Huffaker, Scot Hulbert, Roger Innes, Jonathan D Jones, Isgouhi Kaloshian, Sophien Kamoun, Fumiaki Katagiri, Jan E Leach, Wenbo Ma, John M McDowell, June Medford, Blake Meyers, Rebecca Nelson, Richard Peter Oliver, Yiping Qi, Diane Saunders, Michael Shaw, Prasanta Subudhi, Leslie Torrance, Brett M Tyler, John Walsh
This whitepaper reports the deliberations of a workshop focused on biotic challenges to plant health held in Washington, D.C. in September 2016. Ensuring health of food plants is critical to maintaining the quality and productivity of crops and for sustenance of the rapidly growing human population. There is a close linkage between food security and societal stability; however, global food security is threatened by the vulnerability of our agricultural systems to numerous pests, pathogens, weeds, and environmental stresses...
April 11, 2017: Molecular Plant-microbe Interactions: MPMI
https://www.readbyqxmd.com/read/28398642/wga-alexa-conjugates-for-axonal-tracing
#20
Sabrina L Levy, Joshua J White, Elizabeth P Lackey, Lindsey Schwartz, Roy V Sillitoe
Anatomical labeling approaches are essential for understanding brain organization. Among these approaches are various methods of performing tract tracing. However, a major hurdle to overcome when marking neurons in vivo is visibility. Poor visibility makes it challenging to image a desired neuronal pathway so that it can be easily differentiated from a closely neighboring pathway. As a result, it becomes impossible to analyze individual projections or their connections. The tracer that is chosen for a given purpose has a major influence on the quality of the tracing...
April 10, 2017: Current Protocols in Neuroscience
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