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https://www.readbyqxmd.com/read/28449018/accuracy-of-ethnicity-data-recorded-in-hospital-based-patient-clinical-records-and-the-australia-and-new-zealand-dialysis-and-transplant-registry
#1
Matthew Page, Emma H Wyeth, Ari Samaranayaka, Bronwen McNoe, Rachael Walker, John Schollum, Mark Marshall, Robert Walker, Sarah Derrett
AIM: Sustained health inequities are experienced by indigenous and minority populations. Accurate ethnicity data are fundamental to healthcare planning and provision and monitoring of health outcomes to address such inequities. This study investigated the accuracy of ethnicity data in a large clinical registry of end-stage kidney disease patients (the Australia and New Zealand Dialysis and Transplant Registry; ANZDATA) and hospital-based patient clinical records compared with self-reported ethnicity data collected in the 'Dialysis Outcomes in those aged ≥65 years' (DOS65+) study...
April 28, 2017: New Zealand Medical Journal
https://www.readbyqxmd.com/read/28448922/affine-and-non-affine-deformations-quantified-in-cytoskeletal-networks-through-three-dimensional-form-finding-model
#2
Yifan Wang, Jinghai Gong, Denis Wirtz, Benjamin W Schafer
Actin filaments and cross-linkers are main components of cytoskeletal networks in eukaryotic cells, and they support bending moments and axial forces respectively. A three-dimensional form-finding model is proposed in this work to investigate affine and non-affine deformations in cytoskeletal networks. In recent studies, modeling of cytoskeletal networks turns out to be a key piece in the cell mechanics puzzle. We used form-finding analysis to compute and analyze cytoskeletal models. A three-dimensional model is much more flexible and contains more elements than a two-dimensional model, and non-linear finite element analysis is difficult to converge...
April 20, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28448610/characterization-and-expression-analysis-of-galnts-in-developing-strongylocentrotus-purpuratus-embryos
#3
Amber L Famiglietti, Zheng Wei, Thomas M Beres, Adina L Milac, Duy T Tran, Divya Patel, Robert C Angerer, Lynne M Angerer, Lawrence A Tabak
Mucin-type O-glycosylation is a ubiquitous posttranslational modification in which N-Acetylgalactosamine (GalNAc) is added to the hydroxyl group of select serine or threonine residues of a protein by the family of UDP-GalNAc:Polypeptide N-Acetylgalactosaminyltransferases (GalNAc-Ts; EC 2.4.1.41). Previous studies demonstrate that O-glycosylation plays essential roles in protein function, cell-cell interactions, cell polarity and differentiation in developing mouse and Drosophila embryos. Although this type of protein modification is highly conserved among higher eukaryotes, little is known about this family of enzymes in echinoderms, basal deuterostome relatives of the chordates...
2017: PloS One
https://www.readbyqxmd.com/read/28448386/barriers-to-goal-concordant-care-for-older-patients-with-acute-surgical-illness-communication-patterns-extrinsic-to-decision-aids
#4
Lauren J Taylor, Sara K Johnson, Michael J Nabozny, Jennifer L Tucholka, Nicole M Steffens, Kristine L Kwekkeboom, Karen J Brasel, Toby C Campbell, Margaret L Schwarze
OBJECTIVE: We sought to characterize patterns of communication extrinsic to a decision aid that may impede goal-concordant care. BACKGROUND: Decision aids are designed to facilitate difficult clinical decisions by providing better treatment information. However, these interventions may not be sufficient to effectively reveal patient values and promote preference-aligned decisions for seriously ill, older adults. METHODS: We conducted a secondary analysis of 31 decision-making conversations between surgeons and frail, older inpatients with acute surgical problems at a single tertiary care hospital...
April 26, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28448273/magnetic-induction-spectroscopy-mis-probe-design-for-cervical-tissue-measurements
#5
Jau-Yi Wang, Timothy Healey, Anthony Barker, Brian Brown, Chris Monk, Dilly Anumba
OBJECTIVE: Gradiometers have the advantage of increasing measuring sensitivity, which is particularly useful in magnetic induction spectroscopy (MIS) for bio-impedance measurements. Traditional gradiometers use a pair of field sensing coils equally distant and on opposite sides of a drive coil, which provides high immunity to interference. In this paper, a ferrite-cored coaxial gradiometer probe of 29 mm diameter has been developed for measuring the impedance spectra of cervical tissues in vivo...
April 27, 2017: Physiological Measurement
https://www.readbyqxmd.com/read/28448178/what-is-being-measured-a-comparison-of-two-depressive-symptom-severity-instruments-with-a-depression-diagnosis-in-low-income-high-risk-mothers
#6
Jenny Yang, Maria Martinez, Todd A Schwartz, Linda Beeber
BACKGROUND: Adequate assessment of depressive symptomatology is a necessary step toward decreasing income-related mental health treatment inequity. No studies have focused on comparing instruments used to detect depression in women from low-income backgrounds who are mothers of young children-a period of increased risk for depressive symptoms. METHODS: To address this gap, two commonly used instruments (Center for Epidemiologic Studies Depression Scale [CES-D] and Hamilton Rating Scale for Depression [Hamilton]) were compared with a depression diagnosis (Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition [DSM-V]) in a sample (n = 251) of mothers from low-income backgrounds with children ranging from 1 to 54 months old...
April 27, 2017: Journal of Women's Health
https://www.readbyqxmd.com/read/28448031/transcriptomic-analysis-of-c-elegans-rna-sequencing-data-through-the-tuxedo-suite-on-the-galaxy-project
#7
Francis R G Amrit, Arjumand Ghazi
Next generation sequencing (NGS) technologies have revolutionized the nature of biological investigation. Of these, RNA Sequencing (RNA-Seq) has emerged as a powerful tool for gene-expression analysis and transcriptome mapping. However, handling RNA-Seq datasets requires sophisticated computational expertise and poses inherent challenges for biology researchers. This bottleneck has been mitigated by the open access Galaxy project that allows users without bioinformatics skills to analyze RNA-Seq data, and the Database for Annotation, Visualization, and Integrated Discovery (DAVID), a Gene Ontology (GO) term analysis suite that helps derive biological meaning from large data sets...
April 8, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28447562/dosimetric-advantages-of-a-clinical-daily-adaptive-plan-selection-strategy-compared-with-a-non-adaptive-strategy-in-cervical-cancer-radiation-therapy
#8
Agustinus J A J van de Schoot, Peter de Boer, Jorrit Visser, Lukas J A Stalpers, Coen R N Rasch, Arjan Bel
BACKGROUND: Radiation therapy (RT) using a daily plan selection adaptive strategy can be applied to account for interfraction organ motion while limiting organ at risk dose. The aim of this study was to quantify the dosimetric consequences of daily plan selection compared with non-adaptive RT in cervical cancer. MATERIAL AND METHODS: Ten consecutive patients who received pelvic irradiation, planning CTs (full and empty bladder), weekly post-fraction CTs and pre-fraction CBCTs were included...
May 2017: Acta Oncologica
https://www.readbyqxmd.com/read/28447543/human-egf-derived-direct-and-reverse-short-linear-motifs-conformational-dynamics-insight-into-the-receptor-binding-residues
#9
Nurbubu T Moldogazieva, Konstantin V Shaitan, Mikhail Yu Antonov, Innokenty M Mokhosoev, Olga V Levtsova, Аlexander A Terentiev
Short linear motifs (SLiMs) have been recognized to perform diverse functions in a variety of regulatory proteins through the involvement in protein-protein interactions, signal transduction, cell cycle regulation, protein secretion, etc. However, detailed molecular mechanisms underlying their functions including roles of definite amino acid residues remain obscure. In our previous studies, we demonstrated that conformational dynamics of amino acid residues in oligopeptides derived from regulatory proteins such as alpha-fetoprotein (AFP), carcino-embryonic antigen (CEA) and pregnancy specific β1-glycoproteins (PSGs) contributes greatly to their biological activities...
April 27, 2017: Journal of Biomolecular Structure & Dynamics
https://www.readbyqxmd.com/read/28447450/band-bending-of-ga-polar-gan-interfaced-with-al2o3-through-ultraviolet-ozone-treatment
#10
Kwangeun Kim, Jae Ha Ryu, Jisoo Kim, Sang June Cho, Dong Liu, Jeongpil Park, In-Kyu Lee, Baxter Moody, Weidong Zhou, John Albrecht, Zhenqiang Ma
Understanding the band bending at the interface of GaN/dielectric under different surface treatment conditions is critically important for device design, device performance, and device reliability. The effects of ultraviolet/ozone (UV/O3) treatment of the GaN surface on the energy band bending of atomic-layer-deposition (ALD) Al2O3 coated Ga-polar GaN were studied. The UV/O3 treatment and post-ALD anneal can be used to effectively vary the band bending, valence band offset, conduction band offset, and interface dipole at the Al2O3/GaN interfaces...
April 27, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28447401/valgus-malalignment-and-prevalence-of-lateral-compartmental-radiographic-knee-osteoarthritis-oa-the-wuchuan-oa-study
#11
Bin Wang, Qiang Liu, Barton L Wise, Yan Ke, Dan Xing, Yuankun Xu, Yuqing Zhang, Jianhao Lin
AIM: To evaluate whether knee alignment explains the higher prevalence of lateral compartment tibiofemoral radiographic osteoarthritis (TFROA) among rural Chinese compared with that among Whites. METHODS: The Wuchuan OA Study is a population-based longitudinal study of risk factors for knee OA. At baseline 1030 participants had home interviews, clinical examinations and weight-bearing posteroanterior semi-flexed radiographs of the tibiofemoral joints. Anatomic knee alignment was measured using an e-film workstation and divided into three categories: normal (182°-184°), valgus (> 184°), and varus (< 182°) alignment...
April 26, 2017: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/28447016/deriving-meaningful-insights-from-clinical-trial-and-postmarketing-safety-data-perspectives-from-india
#12
REVIEW
Anand Harugeri, Vineet Shastri, Chanakya Patel
Today, drug safety data collection in India is both manual and electronic with reporting of potential overlapping and duplicate data, which is likely incomplete for further review and analysis. Furthermore, standardized data collection and timelines are not aligned with international standards. Complete coverage of safety data from all sources throughout the life of the drug cannot be ensured. There is no requirement to submit periodic safety data in clinical trials to regulatory authority. There is clearly a lack of emphasis on deriving meaningful safety data insights for ensuring patient safety...
April 2017: Perspectives in Clinical Research
https://www.readbyqxmd.com/read/28446920/two-highly-similar-poplar-paleo-subgenomes-suggest-an-autotetraploid-ancestor-of-salicaceae-plants
#13
Yinzhe Liu, Jinpeng Wang, Weina Ge, Zhenyi Wang, Yuxian Li, Nanshan Yang, Sangrong Sun, Liwei Zhang, Xiyin Wang
As a model plant to study perennial trees in the Salicaceae family, the poplar (Populus trichocarpa) genome was sequenced, revealing recurrent paleo-polyploidizations during its evolution. A comparative and hierarchical alignment of its genome to a well-selected reference genome would help us better understand poplar's genome structure and gene family evolution. Here, by adopting the relatively simpler grape (Vitis vinifera) genome as reference, and by inferring both intra- and inter-genomic gene collinearity, we produced a united alignment of these two genomes and hierarchically distinguished the layers of paralogous and orthologous genes, as related to recursive polyploidizations and speciation...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28446580/entrainment-of-visual-steady-state-responses-is-modulated-by-global-spatial-statistics
#14
Thomas Nguyen, Karl Kuntzelman, Vladimir Miskovic
The rhythmic delivery of visual stimuli evokes large-scale neuronal entrainment in the form of steady-state oscillatory field responses. The spatio-temporal properties of stimulus drive appear to constrain the relative degrees of neuronal entrainment. Specific frequency ranges, for example, are uniquely suited for enhancing the strength of stimulus-driven brain oscillations. When it comes to the nature of the visual stimulus itself, studies have used a plethora of inputs ranging from spatially unstructured empty fields to simple contrast patterns (checkerboards, gratings, stripes) and complex arrays (human faces, houses, natural scenes)...
April 26, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/28446164/core-information-sets-for-informed-consent-to-surgical-interventions-baseline-information-of-importance-to-patients-and-clinicians
#15
Barry G Main, Angus G K McNair, Richard Huxtable, Jenny L Donovan, Steven J Thomas, Paul Kinnersley, Jane M Blazeby
BACKGROUND: Consent remains a crucial, yet challenging, cornerstone of clinical practice. The ethical, legal and professional understandings of this construct have evolved away from a doctor-centred act to a patient-centred process that encompasses the patient's values, beliefs and goals. This alignment of consent with the philosophy of shared decision-making was affirmed in a recent high-profile Supreme Court ruling in England. The communication of information is central to this model of health care delivery but it can be difficult for doctors to gauge the information needs of the individual patient...
April 26, 2017: BMC Medical Ethics
https://www.readbyqxmd.com/read/28445889/genetic-polymorphisms-in-aromatase-cyp19a1-are-not-associated-with-gonadal-phenotypes-in-red-eared-slider-turtle-hatchlings-developed-at-a-pivotal-temperature
#16
Yuiko Matsumoto, David Crews
Embryonic gonad sex in many reptilian species is determined by the incubation temperature of the egg, a differentiation process known as temperature-dependent sex determination (TSD). Incubation at the pivotal temperature (PvT) results in approximately an equal number of offspring of both sexes. We investigated the potential contribution of genetic variations that drives the gonadal differentiation into testes or ovaries under this temperature in the red-eared slider turtle (Trachemys scripta). Four male and 4 female hatchlings of eggs that had been incubated at the PvT were examined for polymorphisms at an approximately 23-kb region of the aromatase (cyp19a1) gene...
April 27, 2017: Sexual Development: Genetics, Molecular Biology, Evolution, Endocrinology, Embryology, and Pathology of Sex Determination and Differentiation
https://www.readbyqxmd.com/read/28445646/spinning-hierarchical-gold-nanowire-microfibers-by-shear-alignment-and-intermolecular-self-assembly
#17
Beate Reiser, Dominik Gerstner, Lola Gonzalez-Garcia, Johannes H M Maurer, Ioannis Kanelidis, Tobias Kraus
Hierarchical structures lend strength to natural fibers made of soft nanoscale building blocks. Intermolecular interactions connect the components at different levels of hierarchy, distribute stresses, and guarantee structural integrity under load. Here, we show that synthetic ultrathin gold nanowires with interacting ligand shells can be spun into biomimetic, free-standing microfibers. A solution spinning process first aligns the wires, then lets their ligand shells interact, and finally converts them into a hierarchical superstructure...
April 26, 2017: ACS Nano
https://www.readbyqxmd.com/read/28445502/role-of-kif15-and-its-novel-mitotic-partner-kbp-in-k-fiber-dynamics-and-chromosome-alignment
#18
Nathalie Brouwers, Nuria Mallol Martinez, Isabelle Vernos
Faithful segregation of the genetic material during the cell cycle is key for the continuation of life. Central to this process is the assembly of a bipolar spindle that aligns the chromosomes and segregates them to the two daughter cells. Spindle bipolarity is strongly dependent on the activity of the homotetrameric kinesin Eg5. However, another kinesin, Kif15, also provides forces needed to separate the spindle poles during prometaphase and to maintain spindle bipolarity at metaphase. Here we identify KBP as a specific interaction partner of Kif15 in mitosis...
2017: PloS One
https://www.readbyqxmd.com/read/28445219/canadian-national-guidelines-and-recommendations-for-integrating-career-advising-into-medical-school-curricula
#19
Kelly Howse, June Harris, Nancy Dalgarno
Career planning, decision making about specialty choice, and preparation for residency matching are significant sources of stress for medical students. Attempts have been made to structure and formalize career advising by including it in accreditation standards. There is an expressed need for national guidelines on career advising for medical students. The Future of Medical Education in Canada Postgraduate (FMEC PG) Implementation Project was created to ensure Canadian medical trainees receive the best education possible...
April 25, 2017: Academic Medicine: Journal of the Association of American Medical Colleges
https://www.readbyqxmd.com/read/28445164/simple-and-scalable-preparation-of-master-mold-for-nanoimprint-lithography
#20
Yuri Yamada, Kota Ito, Atsushi Miura, Hideo Iizuka, Hiroaki Wakayama
Nanoimprint lithography (NIL) is one of the most prominent bottom-up techniques for duplicating nanostructures with a high throughput. However, fabrication of starting master mold commonly requires expensive equipment of top-down techniques, or additional steps to transfer the fabricated patterns from bottom-up methods. Here we demonstrate that a SiO2 nanostructure manufactured from a self-assembled block copolymer, polystyrene-b-polydimethylsiloxane (PS-b-PDMS), directly serves as a master mold for NIL without further modification...
May 19, 2017: Nanotechnology
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