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https://www.readbyqxmd.com/read/28813112/what-do-cochrane-systematic-reviews-say-about-the-clinical-effectiveness-of-screening-and-diagnostic-tests-for-cancer
#1
André Tito Pereira Bueno, Vladimir Lisboa Capelasso, Rafael Leite Pacheco, Carolina de Oliveira Cruz Latorraca, Tiago Biachi de Castria, Daniela Vianna Pachito, Rachel Riera
CONTEXT AND OBJECTIVE: The purpose of screening tests for cancer is to detect it at an early stage in order to increase the chances of treatment. However, their unrestrained use may lead to unnecessary examinations, overdiagnosis and higher costs. It is thus necessary to evaluate their clinical effects in terms of benefits and harm. DESIGN AND SETTING: Review of Cochrane systematic reviews, carried out in the Discipline of Evidence-Based Medicine, Escola Paulista de Medicina, Universidade Federal de São Paulo...
July 2017: São Paulo Medical Journal, Revista Paulista de Medicina
https://www.readbyqxmd.com/read/28813018/biophysical-and-computational-studies-of-the-vcci-vmip-ii-complex
#2
Anna F Nguyen, Nai-Wei Kuo, Laura J Showalter, Ricardo Ramos, Cynthia M Dupureur, Michael E Colvin, Patricia J LiWang
Certain viruses have the ability to subvert the mammalian immune response, including interference in the chemokine system. Poxviruses produce the chemokine binding protein vCCI (viral CC chemokine inhibitor; also called 35K), which tightly binds to CC chemokines. To facilitate the study of vCCI, we first provide a protocol to produce folded vCCI from Escherichia coli (E. coli.) It is shown here that vCCI binds with unusually high affinity to viral Macrophage Inflammatory Protein-II (vMIP-II), a chemokine analog produced by the virus, human herpesvirus 8 (HHV-8)...
August 16, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28812992/endolysosomal-degradation-of-allergenic-ole-e-1-like-proteins-analysis-of-proteolytic-cleavage-sites-revealing-t-cell-epitope-containing-peptides
#3
Sabrina Wildner, Brigitta Elsässer, Teresa Stemeseder, Peter Briza, Wai Tuck Soh, Mayte Villalba, Jonas Lidholm, Hans Brandstetter, Gabriele Gadermaier
Knowledge of the susceptibility of proteins to endolysosomal proteases provides valuable information on immunogenicity. Though Ole e 1-like proteins are considered relevant allergens, little is known about their immunogenic properties and T cell epitopes. Thus, six representative molecules, i.e., Ole e 1, Fra e 1, Sal k 5, Che a 1, Phl p 11 and Pla l 1, were investigated. Endolysosomal degradation and peptide generation were simulated using microsomal fractions of JAWS II dendritic cells. Kinetics and peptide patterns were evaluated by gel electrophoresis and mass spectrometry...
August 16, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28812871/high-performance-porous-molybdenum-oxynitride-based-fiber-supercapacitors
#4
Dan Ruan, Rui Lin, Kui Jiang, Xiang Yu, Yaofeng Zhu, Yaqin Fu, Zilong Wang, He Yan, Wenjie Mai
Scalable manufacturing of flexible, fiber-shaped energy storage devices has enabled great technological advances in wearable and portable technology. Replacing inefficient oxides with inexpensive and high-performance oxynitrides with more favourable 3D structures is critical if the practical applications of these technologies are to be realised. Here we developed a facile and controllable approach for the synthesis of 3D porous micropillars of molybdenum oxynitride, which exhibit high conductivity, robust stability and excellent energy storage properties...
August 16, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28812866/directly-coating-multifunctional-interlayer-on-the-cathode-via-electrospinning-for-advanced-lithium-sulfur-batteries
#5
Yueying Peng, Yiyong Zhang, Yunhui Wang, Xiu Shen, Feng Wang, He Li, Bing-Joe Hwang, Jinbao Zhao
Lithium sulfur battery is considered as a prospective candidate for high-energy-storage system as its high theoretical specific capacity and energy. However, the dissolution and shutter of polysulfides lead to low active material utilization and fast capacity fading. Electrospinning technology is employed to directly coat an interlayer composed of polyacrylonitrile (PAN) and nitrogen-doped carbon black (NC) fibers on the cathode. Benefited from electrospinning technology, the PAN-NC fibers possess good electrolyte infiltration for fast lithium-ion transport and great flexibility for adhering on the cathode...
August 16, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28812844/clinician-perspectives-of-barriers-to-effective-implementation-of-a-rapid-response-system-in-an-academic-health-centre-a-focus-group-study
#6
John Rihari-Thomas, Michelle DiGiacomo, Jane Phillips, Phillip Newton, Patricia M Davidson
BACKGROUND: Systemic and structural issues of rapid response system (RRS) models can hinder implementation. This study sought to understand the ways in which acute care clinicians (physicians and nurses) experience and negotiate care for deteriorating patients within the RRS. METHODS: Physicians and nurses working within an Australian academic health centre within a jurisdictional-based model of clinical governance participated in focus group interviews. Verbatim transcripts were analysed using thematic content analysis...
January 1, 2017: International Journal of Health Policy and Management
https://www.readbyqxmd.com/read/28812827/-seeing-the-difference-the-importance-of-visibility-and-action-as-a-mark-of-authenticity-in-co-production-comment-on-collaboration-and-co-production-of-knowledge-in-healthcare-opportunities-and-challenges
#7
Jo Cooke, Joe Langley, Dan Wolstenholme, Susan Hampshaw
The Rycroft-Malone paper states that co-production relies on 'authentic' collaboration as a context for action. Our commentary supports and extends this assertion. We suggest that 'authentic' co-production involves processes where participants can 'see' the difference that they have made within the project and beyond. We provide examples including: the use of design in health projects which seek to address power issues and make contributions visible through iteration and prototyping; and the development of 'actionable outputs' from research that are the physical embodiment of co-production...
October 17, 2016: International Journal of Health Policy and Management
https://www.readbyqxmd.com/read/28812729/complex-modular-architecture-around-a-simple-toolkit-of-wing-pattern-genes
#8
Steven M Van Belleghem, Pasi Rastas, Alexie Papanicolaou, Simon H Martin, Carlos F Arias, Megan A Supple, Joseph J Hanly, James Mallet, James J Lewis, Heather M Hines, Mayte Ruiz, Camilo Salazar, Mauricio Linares, Gilson R P Moreira, Chris D Jiggins, Brian A Counterman, W Owen McMillan, Riccardo Papa
Identifying the genomic changes that control morphological variation and understanding how they generate diversity is a major goal of evolutionary biology. In Heliconius butterflies, a small number of genes control the development of diverse wing colour patterns. Here, we used full-genome sequencing of individuals across the Heliconius erato radiation and closely related species to characterize genomic variation associated with wing pattern diversity. We show that variation around colour pattern genes is highly modular, with narrow genomic intervals associated with specific differences in colour and pattern...
January 30, 2017: Nature ecology & evolution
https://www.readbyqxmd.com/read/28812713/female-plasticity-tends-to-reduce-sexual-conflict
#9
David V McLeod, Troy Day
Sexual conflict is the divergence of evolutionary interests between the sexes. A neglected aspect of sexual conflict theory is that the conflict often occurs within the female's body, which can lead to a power asymmetry between the sexes. In particular, the female may often be able to respond flexibly to the actions of the male, and so exhibits plasticity. Here, we consider the implications of female plasticity, and find that it tends to result in lower levels of sexual conflict. We then relate our results to a comparison of pre- versus post-copulatory sexual conflict, and we also show that this asymmetry between males and females reduces the likelihood of runaway selection, preventing co-evolutionary arms races...
February 13, 2017: Nature ecology & evolution
https://www.readbyqxmd.com/read/28812570/independent-evolution-of-shape-and-motility-allows-evolutionary-flexibility-in-firmicutes-bacteria
#10
Fouad El Baidouri, Chris Venditti, Stuart Humphries
Functional morphological adaptation is an implicit assumption across many ecological studies. However, despite a few pioneering attempts to link bacterial form and function, functional morphology is largely unstudied in prokaryotes. One intriguing candidate for analysis is bacterial shape, as multiple lines of theory indicate that cell shape and motility should be strongly correlated. Here we present a large-scale use of modern phylogenetic comparative methods to explore this relationship across 325 species of the phylum Firmicutes...
November 21, 2016: Nature ecology & evolution
https://www.readbyqxmd.com/read/28812356/single-molecule-nanopore-spectrometry-for-peptide-detection
#11
Amy E Chavis, Kyle T Brady, Grace A Hatmaker, Christopher E Angevine, Nuwan Kothalawala, Amala Dass, Joseph W F Robertson, Joseph E Reiner
Sensing and characterization of water-soluble peptides is of critical importance in a wide variety of bioapplications. Single molecule nanopore spectrometry (SMNS) is based on the idea that one can use biological protein nanopores to resolve different sized molecules down to limits set by the blockade duration and noise. Previous work has shown that this enables discrimination between polyethylene glycol (PEG) molecules that differ by a single monomer unit. This paper describes efforts to extend SMNS to a variety of biologically relevant, water-soluble peptides...
August 16, 2017: ACS Sensors
https://www.readbyqxmd.com/read/28812354/3d-moldable-nanofiber-reinforced-transparent-composites-with-hierarchically-self-assembled-reverse-nacre-like-architecture
#12
Subir Kumar Biswas, Hironari Sano, Md Iftekhar Shams, Hiroyuki Yano
Achieving structural hierarchy and a uniform nanofiller dispersion simultaneously remains highly challenging for obtaining a robust polymer nanocomposite of immiscible components. In this study, a remarkably facile Pickering emulsification approach is developed to fabricate hierarchical composites of immiscible acrylic polymer and native cellulose nanofibers by taking advantage of the dual role of the nanofibers as both the emulsion stabilizer and polymer reinforcement. The composites feature a unique "reverse" nacre-like microstructure reinforced with well-dispersed two-tier hierarchical nanofiber network, leading to a synergistic high strength, modulus, and toughness (20, 50, and 53 times that of neat polymer, respectively), high optical transparency (89%), high flexibility and a drastically low thermal expansion (13 ppm/K, 1/15th of the neat polymer)...
August 16, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28812318/the-development-and-flexibility-of-gaze-alternations-in-bonobos-and-chimpanzees
#13
Kelsey Lucca, Evan L MacLean, Brian Hare
Infants' early gaze alternations are one of their first steps towards a sophisticated understanding of the social world. This ability, to gaze alternate between an object of interest and another individual also attending to that object, has been considered foundational to the development of many complex social-cognitive abilities, such as theory of mind and language. However, to understand the evolution of these abilities, it is important to identify whether and how gaze alternations are used and develop in our closest living relatives, bonobos (Pan paniscus) and chimpanzees (Pan troglodytes)...
August 15, 2017: Developmental Science
https://www.readbyqxmd.com/read/28812161/a-proficiency-based-virtual-reality-endoscopy-curriculum-improves-performance-on-the-fundamentals-of-endoscopic-surgery-examination
#14
Daniel A Hashimoto, Emil Petrusa, Roy Phitayakorn, Christina Valle, Brenna Casey, Denise Gee
INTRODUCTION: The fundamentals of endoscopic surgery (FES) examination is a national test of knowledge and skill in flexible gastrointestinal endoscopy. The skill portion of the examination involves five tasks that assesses the following skills: scope navigation, loop reduction, mucosal inspection, retroflexion, and targeting. This project aimed to assess the efficacy of a proficiency-based virtual reality (VR) curriculum in preparing residents for the FES skills exam. METHODS: Experienced (>100 career colonoscopies) and inexperienced endoscopists (<50 career colonoscopies) were recruited to participate...
August 15, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28812118/-long-term-results-of-colorectal-cancer-screening-using-sigmoidoscopy-uk-flexible-sigmoidoscopy-screening-trial-ukfsst
#15
M Ebert, S Nitschmann
No abstract text is available yet for this article.
August 15, 2017: Der Internist
https://www.readbyqxmd.com/read/28812089/large-scale-all-polycrystalline-diamond-structures-transferred-onto-flexible-parylene-c-films-for-neurotransmitter-sensing
#16
Bin Fan, Yan Zhu, Robert Rechenberg, Cory A Rusinek, Michael F Becker, Wen Li
Boron-doped diamond (BDD) has superior electrochemical properties for bioelectronic systems. However, due to its high synthesis temperature, traditional microfabrication methods have limits to integrating BDD with emerging classes of flexible, polymer-based bioelectronic systems. This paper introduces a novel fabrication solution to this challenge, which features (i) a wafer-scale substrate transfer process with all diamond structures transferred onto a flexible Parylene-C substrate and (ii) Parylene anchors introduced to strengthen the bonding between BDD and Parylene substrates, as demonstrated by a peeling test...
August 16, 2017: Lab on a Chip
https://www.readbyqxmd.com/read/28811912/flexible-assertive-community-treatment-fact-model-in-specialist-psychosis-teams-an-evaluation
#17
Loopinder Sood, Andy Owen, Richard Onyon, Aarohi Sharma, Jessica Nigriello, Dominic Markham, Hannah Seabrook
Aims and method The impact of flexible assertive community treatment (FACT) has been observed in people previously supported by assertive community treatment (ACT) teams, but its effect on those previously with a community mental health team (CMHT) has not been studied in the UK. An observational study was conducted of 380 people from 3 CMHTs and 95 people from an ACT team, all with a history of psychosis, following service reconfiguration to 3 FACT teams. Results People previously with a CMHT required less time in hospital when the FACT model was introduced...
August 2017: BJPsych Bulletin
https://www.readbyqxmd.com/read/28811884/factors-contributing-to-the-accumulation-of-reproductive-isolation-a-mixed-model-approach
#18
Dean M Castillo
The analysis of large datasets describing reproductive isolation between species has been extremely influential in the study of speciation. However, the statistical methods currently used for these data limit the ability to make direct inferences about the factors predicting the evolution of reproductive isolation. As a result, our understanding of iconic patterns and rules of speciation rely on indirect analyses that have clear statistical limitations. Phylogenetic mixed models are commonly used in ecology and evolution, but have not been applied to studies of reproductive isolation...
August 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28811786/examining-the-postural-awareness-and-flexibility-changes-in-physical-therapy-students-who-took-clinical-pilates-class
#19
Esra Atilgan, Devrim Tarakci, Fatma Mutluay
OBJECTIVE: This study aimed to evaluate postural awareness and changes in posture and flexibility of students who took Clinical Pilates class as an elective course at the undergraduate level. METHODS: The study conducted from 2013-2016 included 98 students who took Clinical Pilates class at the Department of Physical Therapy and Rehabilitation, School of Health Sciences, Istanbul Medipol University, Turkey. The flexibility levels of the study participants were measured before and after the Clinical Pilates education using finger-to-floor test and modified Schober's test...
May 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/28811754/comparative-genome-analysis-of-rathayibacter-tritici-ncppb-1953-with-rathayibacter-toxicus-strains-can-facilitate-studies-on-mechanisms-of-nematode-association-and-host-infection
#20
Jungwook Park, Pyeong An Lee, Hyun-Hee Lee, Kihyuck Choi, Seon-Woo Lee, Young-Su Seo
Rathayibacter tritici, which is a Gram positive, plant pathogenic, non-motile, and rod-shaped bacterium, causes spike blight in wheat and barley. For successful pathogenesis, R. tritici is associated with Anguina tritici, a nematode, which produces seed galls (ear cockles) in certain plant varieties and facilitates spread of infection. Despite significant efforts, little research is available on the mechanism of disease or bacteria-nematode association of this bacterium due to lack of genomic information. Here, we report the first complete genome sequence of R...
August 2017: Plant Pathology Journal
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