keyword
MENU ▼
Read by QxMD icon Read
search

debate

keyword
https://www.readbyqxmd.com/read/28231637/preen-oil-and-bird-fitness-a-critical-review-of-the-evidence
#1
Gregorio Moreno-Rueda
The uropygial gland is a holocrine complex exclusive to birds that produces an oleaginous secretion (preen oil) whose function is still debated. Herein, I examine critically the evidence for the many hypotheses of potential functions of this gland. The main conclusion is that our understanding of this gland is still in its infancy. Even for functions that are considered valid by most researchers, real evidence is scarce. Although it seems clear that preen oil contributes to plumage maintenance, we do not know whether this is due to a role in reducing mechanical abrasion or in reducing feather degradation by keratinophilic organisms...
February 23, 2017: Biological Reviews of the Cambridge Philosophical Society
https://www.readbyqxmd.com/read/28231466/leaky-gate-model-intensity-dependent-coding-of-pain-and-itch-in-the-spinal-cord
#2
Shuohao Sun, Qian Xu, Changxiong Guo, Yun Guan, Qin Liu, Xinzhong Dong
Coding of itch versus pain has been heatedly debated for decades. However, the current coding theories (labeled line, intensity, and selectivity theory) cannot accommodate all experimental observations. Here we identified a subset of spinal interneurons, labeled by gastrin-releasing peptide (Grp), that receive direct synaptic input from both pain and itch primary sensory neurons. When activated, these Grp(+) neurons generated rarely seen, simultaneous robust pain and itch responses that were intensity dependent...
February 22, 2017: Neuron
https://www.readbyqxmd.com/read/28231462/the-complicated-relationship-between-gaucher-disease-and-parkinsonism-insights-from-a-rare-disease
#3
REVIEW
Elma Aflaki, Wendy Westbroek, Ellen Sidransky
The discovery of a link between mutations in GBA1, encoding the lysosomal enzyme glucocerebrosidase, and the synucleinopathies directly resulted from the clinical recognition of patients with Gaucher disease with parkinsonism. Mutations in GBA1 are now the most common known genetic risk factor for several Lewy body disorders, and an inverse relationship exists between levels of glucocerebrosidase and oligomeric α-synuclein. While the underlying mechanisms are still debated, this complicated association is shedding light on the role of lysosomes in neurodegenerative disorders, demonstrating how insights from a rare disorder can direct research into the pathogenesis and therapy of seemingly unrelated common diseases...
February 22, 2017: Neuron
https://www.readbyqxmd.com/read/28230661/predicting-progression-in-barrett-s-esophagus-development-and-validation-of-the-barrett-s-esophagus-assessment-of-risk-score-bear-score
#4
Craig S Brown, Brittany Lapin, Jay L Goldstein, John G Linn, Mark S Talamonti, Joann Carbray, Michael B Ujiki
OBJECTIVE: To develop and validate a scoring tool capable of accurately predicting which patients with Barrett's esophagus (BE) will progress to dysplasia and/or esophageal adenocarcinoma. BACKGROUND: Endoscopic therapies have emerged capable of eradicating BE with high efficacy and low complication rates, but which patients should receive treatment is still debated. Current knowledge of risk factors is insufficient to allow for the accurate prediction of which patients will progress to dysplasia or adenocarcinoma...
February 22, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28230395/contextual-cueing-improves-attentional-guidance-even-when-guidance-is-supposedly-optimal
#5
Anthony M Harris, Roger W Remington
Visual search through previously encountered contexts typically produces reduced reaction times compared with search through novel contexts. This contextual cueing benefit is well established, but there is debate regarding its underlying mechanisms. Eye-tracking studies have consistently shown reduced number of fixations with repetition, supporting improvements in attentional guidance as the source of contextual cueing. However, contextual cueing benefits have been shown in conditions in which attentional guidance should already be optimal-namely, when attention is captured to the target location by an abrupt onset, or under pop-out conditions...
February 23, 2017: Journal of Experimental Psychology. Human Perception and Performance
https://www.readbyqxmd.com/read/28230297/spectroscopic-observation-of-a-hydrogenated-co-dimer-intermediate-during-co-reduction-on-cu-100-electrodes
#6
Elena Pérez-Gallent, Marta C Figueiredo, Federico Calle-Vallejo, Marc T M Koper
Carbon dioxide and carbon monoxide can be electrochemically reduced to useful products such as ethylene and ethanol on copper electrocatalysts. The process is yet to be optimized and the exact mechanism and the corresponding reaction intermediates are under debate or unknown. In particular, it has been hypothesized that the C-C bond formation proceeds via CO dimerization and further hydrogenation. Although computational support for this hypothesis exists, direct experimental evidence has been elusive. In this work, we detect a hydrogenated dimer intermediate (OCCOH) using Fourier transform infrared spectroscopy at low overpotentials in LiOH solutions...
February 23, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28230194/biaxial-strain-effect-induced-electronic-structure-alternation-and-trimeron-recombination-in-fe3o4
#7
Xiang Liu, Li Yin, Wenbo Mi
The Verwey transition in Fe3O4 is the first metal-insulator transition caused by charge ordering. However, the physical mechanism and influence factors of Verwey transition are still debated. Herewith, the strain effects on the electronic structure of low-temperature phase (LTP) Fe3O4 with P2/c and Cc symmetries are investigated by first-principles calculations. LTP Fe3O4 with each space group has a critical strain. With P2/c, Fe3O4 is sensitive to the compressive strain, but it is sensitive to tensile strain for Cc...
February 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28229848/-the-extraction-non-extraction-dilemma-a-case-in-the-border
#8
José Chaqués-Asensi
INTRODUCTION: The extraction-non extraction dilemma is a classic one in the history of orthodontics [2, 19, 30]. In some cases the decision seems to be very clear whereas in some others discrepancies among clinicians can easily be found. Different authors propose different protocols in order to decide whether extractions are necessary in a particular clinical situation. In the last 25 years, the debate has been reframed with new non-extractionists trends based on new treatment philosophies or mechanics...
March 2017: L' Orthodontie Française
https://www.readbyqxmd.com/read/28229811/patient-phenotypes-in-fibromyalgia-comorbid-with-systemic-sclerosis-or-rheumatoid-arthritis-influence-of-diagnostic-and-screening-tests-screening-with-the-first-questionnaire-diagnosis-with-the-acr1990-and-revised-acr-2010-criteria
#9
Serge Perrot, Mariana Peixoto, Philippe Dieudé, Eric Hachulla, Jerome Avouac, Sebastien Ottaviani, Yannick Allanore
OBJECTIVES: Fibromyalgia (FM) may occur with rheumatoid arthritis (RA) and systemic sclerosis (SSc), and debate remains about its diagnosis. We aimed to use three FM tools (a screening tool (FiRST), diagnostic criteria (ACR 1990 and revised 2010), to compare FM prevalence between RA and SSc patients, to describe the phenotypes of patients with comorbid FM, and to analyze links between FM and secondary Sjögren's syndrome (SS). METHODS: Consecutive adult patients with confirmed RA or SSc from four university hospitals were tested with the three FM tools...
February 8, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28228944/semi-closed-surgical-technique-for-treatment-of-pilonidal-sinus-disease
#10
Georgios Sahsamanis, Stavros Samaras, Georgios Mitsopoulos, Titos Deverakis, Georgios Dimitrakopoulos, Dionysios Pinialidis
INTRODUCTION: Pilonidal sinus disease (PSD) is a highly debatable disorder regarding its surgical management, despite an assortment of surgical techniques described in the medical literature. The aim of this report is to provide an alternate semi-closed surgical method for treatment of PSD, with early recovery and a satisfactory cosmetic result. METHODS: In this retrospective study, 34 patients underwent surgical treatment for primary PSD; 32 male and 2 female. Patients were suffering from primary PSD, with the cyst located in the gluteal midline...
March 2017: Annals of Medicine and Surgery
https://www.readbyqxmd.com/read/28228288/fda-ce-mark-or-something-else-thinking-fast-and-slow
#11
EDITORIAL
Sundeep Mishra
There is a robust debate going on among the Medical Device stake-holders whether FDA is better or CE mark or something else. Currently process of obtaining an FDA approval is bogged down by ever-increasing unpredictability, inconsistency, prolonged time, and huge expense but CE mark has its own problems. Historically, the Japanese review process has tended to be the slowest among the big three but recently with the introduction of accelerated review process there has been a significant progress. While the goal of an innovator/manufacturer is to develop, manufacture and market a medical device that addresses an unmet clinical need, the requisite regulatory approval process can be very confusing...
January 2017: Indian Heart Journal
https://www.readbyqxmd.com/read/28228230/expanding-professional-pharmacy-services-in-european-community-setting-is-it-cost-effective-a-systematic-review-for-health-policy-considerations
#12
REVIEW
Clémence Perraudin, Olivier Bugnon, Nathalie Pelletier-Fleury
OBJECTIVE: To synthesize cost-effectiveness analyses on professional pharmacy services (PPS) performed in Europe in order to contribute to current debates on their funding and reimbursement. METHODS: Systematic review in PubMed, Embase and the Centre for Reviews and Dissemination databases to identify full economic evaluation studies of PPS in community setting from 2004. FINDINGS: Twenty-one studies were included, conducted in the United-Kingdom (n=13), the Netherlands (n=3), Spain (n=2), Belgium (n=1), France (n=1) and Denmark (n=1)...
December 2016: Health Policy
https://www.readbyqxmd.com/read/28228200/complex-ventral-hernia-repair-with-acellular-dermal-matrices-clinical-and-quality-of-life-outcomes
#13
John Scott Roth, Amanda Zachem, Margaret A Plymale, Daniel L Davenport
Acellular dermal matrices (ADMs) are used in conjunction with complex hernia repair, but their efficacy is often debated. This study assesses clinical and quality of life (QOL) outcomes in multiply comorbid patients undergoing complex ventral hernia repair using ADMs. After obtaining institutional review board approval, a prospective study was conducted evaluating patients undergoing complex ventral incisional hernia repair with abdominal wall reconstruction (AWR) using either human (Flex HD) or porcine ADM (Strattice)...
February 1, 2017: American Surgeon
https://www.readbyqxmd.com/read/28227769/identifying-the-effects-of-visceral-interoception-on-human-brain-connectome-a-multivariate-analysis-of-covariance-of-fmri-data
#14
Behnaz Jarrahi, Dante Mantini, Behnaz Jarrahi, Dante Mantini, Behnaz Jarrahi, Dante Mantini
Sources of variations in the neural circuitry of the human brain and interrelationship between intrinsic connectivity networks (ICNs) are still a matter of debate and ongoing research. Here, we applied a multivariate analysis of covariance (MANCOVA) based on high-dimensional independent component analysis (ICA) to identify the effects of interoception and related variables on human brain connectome. Fifteen healthy right-handed subjects (all females, age range 21 - 48 years; mean age = 30.3, SD = 8.7 years) underwent a blood-oxygen-level-dependent (BOLD) functional magnetic resonance imaging (fMRI) that included continuous intravesical saline infusion and drainage...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226384/-the-use-of-nudging-for-primary-prevention-a-review-and-perspectives-for-germany
#15
Mathias Krisam, Peter von Philipsborn, Björn Meder
Nudging as a means of influencing human behaviour has received increasing attention by policy makers, including those in the field of public health. Nudges are generally understood as specific aspects of a choice architecture that make certain behaviours more likely to occur without mandating them through binding rules, and without relying on economic incentives. Following the example of the United States and Great Britain, the German government has established a working group tasked with advising the federal government on the use of nudging and other behavioural interventions in policy making...
February 2017: Das Gesundheitswesen
https://www.readbyqxmd.com/read/28226244/molecularly-organic-inorganic-hybrid-hollow-mesoporous-organosilica-nanocapsules-with-tumor-specific-biodegradability-and-enhanced-chemotherapeutic-functionality
#16
Ping Huang, Yu Chen, Han Lin, Luodan Yu, Linlin Zhang, Liying Wang, Yufang Zhu, Jianlin Shi
Based on the intrinsic features of high stability and unique multifunctionality, inorganic nanoparticles have shown remarkable potentials in combating cancer, but their biodegradability and biocompatibility are still under debate. As a paradigm, this work successfully demonstrates that framework organic-inorganic hybridization can endow the inorganic mesoporous silica nanocarriers with unique tumor-sensitive biodegradability and high biocompatibility. Based on a "chemical homology" mechanism, molecularly organic-inorganic hybridized hollow mesoporous organosilica nanocapsules (HMONs) with high dispersity and sub-50 nm particle dimension were constructed in mass production...
February 15, 2017: Biomaterials
https://www.readbyqxmd.com/read/28225839/-conceptual-and-methodological-issues-involved-in-the-research-field-of-diagnostic-reasoning
#17
Francisco N Di Persia
The psychopathological field is crossed by dilemmas that put in question its methodological, conceptual and philosophical filiations. Since the early works of Ey and Jaspers until recent work of Berrios it has been in question the position psychopathology has in the field of medicine in general, and in the field of psychiatry in particular, especially if it should follow the principles of natural science or if it has an autonomous position between them. This debate has led to two opposing positions facing two different models of psychopathology: the biomedical model and the socio-constructionist model...
May 2016: Vertex: Revista Argentina de Psiquiatriá
https://www.readbyqxmd.com/read/28225699/what-is-the-relevance-of-procedural-fairness-to-making-determinations-about-medical-evidence
#18
Govind Persad
Approaches relying on fair procedures rather than substantive principles have been proposed for answering dilemmas in medical ethics and health policy. These dilemmas generally involve two questions: the epistemological (factual) question of which benefits an intervention will have, and the ethical (value) question of how to distribute those benefits. This article focuses on the potential of fair procedures to help address epistemological and factual questions in medicine, using the debate over antidepressant efficacy as a test case...
February 1, 2017: AMA Journal of Ethics
https://www.readbyqxmd.com/read/28225651/robotic-surgery-a-solution-in-search-of-a-problem-a-bayesian-analysis-of-343-robotic-procedures-performed-by-a-single-surgical-team
#19
Simona Manciu, Mihnea Dragomir, Fabiana Curea, Catalin Vasilescu
BACKGROUND: Despite the obvious technical advantages, the value of robotic surgery is highly debated and its cost-effectiveness has been questioned. The aim of this article is to provide an evaluation of the outcomes of robotic surgery in comparison to conventional laparoscopy. METHODS: A decision analysis based on the Bayes' theorem and the decision tree was used. The robotic approach was compared with the laparoscopic approach for each of the pathologies discussed in this study...
February 22, 2017: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/28225545/enhancing-political-will-for-universal-health-coverage-in-nigeria
#20
Bolaji S Aregbeshola
Universal health coverage aims to increase equity in access to quality health care services and to reduce financial risk due to health care costs. It is a key component of international health agenda and has been a subject of worldwide debate. Despite differing views on its scope and pathways to reach it, there is a global consensus that all countries should work toward universal health coverage. The goal remains distant for many African countries, including Nigeria. This is mostly due to lack of political will and commitment among political actors and policymakers...
January 2017: MEDICC Review
keyword
keyword
117724
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"