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https://www.readbyqxmd.com/read/28098431/synthesis-and-characterisation-of-reduced-graphene-oxide-bismuth-composite-for-electrodes-in-electrochemical-energy-storage-devices
#1
Jiabin Wang, Han Zhang, Michael R C Hunt, Alasdair Charles, Jie Tang, Oana Bretcanu, David Walker, Khalil T Hassan, Yige Sun, Lidija Šiller
A reduced graphene oxide/bismuth (rGO/Bi) composite was synthesized for the first time using a polyol process at a low reaction temperature and with a short reaction time (60 °C and 3 hours, respectively). The as-prepared sample is structured with 20-50 nm diameter bismuth particles distributed on the rGO sheets. The rGO/Bi composite displays a combination of capacitive and battery-like charge storage, achieving a specific capacity value of 773 C g(-1) at a current density of 0.2 A g(-1) when charged to 1 V...
January 18, 2017: ChemSusChem
https://www.readbyqxmd.com/read/28098427/emergence-of-mania-in-two-middle-aged-patients-with-a-history-of-unipolar-treatment-refractory-depression-receiving-vagus-nerve-stimulation
#2
Naji C Salloum, Marie C Walker, Sunil Gangwani, Charles R Conway
OBJECTIVES: We report on two patients who experienced emergence of full manic symptoms while receiving vagal nerve stimulation (VNS). METHODS: Two patients, both with a well-documented and verified history of longstanding unipolar depression, were initiated on VNS for treatment of their severe major depressive episodes. RESULTS: The two patients had emergence of full manic symptoms after 8 and 9 months of VNS, respectively. Manic symptoms were adequately managed with standard treatments (mood stabilizer and electroconvulsive therapy) and VNS was continued in the two subjects for up to 5 years without any further occurrences of manic/hypomanic episodes...
January 18, 2017: Bipolar Disorders
https://www.readbyqxmd.com/read/28097233/ectonucleotidase-cd39-driven-control-of-postinfarction-myocardial-repair-and-rupture
#3
Nadia R Sutton, Takanori Hayasaki, Matthew C Hyman, Anuli C Anyanwu, Hui Liao, Danica Petrovic-Djergovic, Linda Badri, Amy E Baek, Natalie Walker, Keigo Fukase, Yogendra Kanthi, Scott H Visovatti, Ellen L Horste, Jessica J Ray, Sascha N Goonewardena, David J Pinsky
Mechanical complications of myocardial infarction (MI) are often fatal. Little is known about endogenous factors that predispose to myocardial rupture after MI. Ectonucleoside triphosphate diphosphohydrolase (CD39) could be a critical mediator of propensity to myocardial rupture after MI due to its role in modulating inflammation and thrombosis. Using a model of permanent coronary artery ligation, rupture was virtually abrogated in cd39(-/-) mice versus cd39(+/+) controls, with elevated fibrin and collagen deposition and marked neutrophil and macrophage influx...
January 12, 2017: JCI Insight
https://www.readbyqxmd.com/read/28096758/effects-of-acute-ingestion-of-a-pre-workout-dietary-supplement-with-and-without-p-synephrine-on-resting-energy-expenditure-cognitive-function-and-exercise-performance
#4
Y Peter Jung, Conrad P Earnest, Majid Koozehchian, Elfego Galvan, Ryan Dalton, Dillon Walker, Christopher Rasmussen, Peter S Murano, Mike Greenwood, Richard B Kreider
BACKGROUND: The purpose of this study was to examine the effects of acute ingestion of a pre-workout dietary supplement (PWS) with and without p-synephrine (S) on perceptions of readiness to perform, cognitive function, exercise performance, and markers of safety. METHODS: In a randomized, double-blind, and counterbalanced manner; 25 healthy and recreationally active male and female participants ingested a flavored maltodextrin placebo (PLA), a PWS containing beta-alanine (3 g), creatine nitrate as a salt (2 g), arginine alpha-ketoglutarate (2 g), N-Acetyl-L-Tyrosine (300 mg), caffeine (284 mg), Mucuna pruiriens extract standardized for 15% L-Dopa (15 mg), Vitamin C as Ascorbic Acid (500 mg), niacin (60 mg), folate as folic acid (50 mg), and Vitamin B12 as Methylcobalamin (70 mg) with 2 g of maltodextrin and flavoring; or, the PWS with Citrus aurantium (PWS + S) extract standardized for 30% p-synephrine (20 mg)...
2017: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/28096757/effects-of-ingesting-a-pre-workout-dietary-supplement-with-and-without-synephrine-for-8%C3%A2-weeks-on-training-adaptations-in-resistance-trained-males
#5
Y Peter Jung, Conrad P Earnest, Majid Koozehchian, Minye Cho, Nick Barringer, Dillon Walker, Christopher Rasmussen, Mike Greenwood, Peter S Murano, Richard B Kreider
BACKGROUND: The purpose of this study was to examine whether ingesting a pre-workout dietary supplement (PWS) with and without synephrine (S) during training affects training responses in resistance-trained males. METHODS: Resistance-trained males (N = 80) were randomly assigned to supplement their diet in a double-blind manner with either a flavored placebo (PLA); a PWS containing beta-alanine (3 g), creatine nitrate as a salt (2 g), arginine alpha-ketoglutarate (2 g), N-Acetyl-L-Tyrosine (300 mg), caffeine (284 mg), Mucuna pruiriens extract standardized for 15% L-Dopa (15 mg), Vitamin C as Ascorbic Acid (500 mg), niacin (60 mg), folate as folic acid (50 mg), and Vitamin B12 as Methylcobalamin (70 mg); or, the PWS supplement with Citrus aurantium extract containing 20 mg of synephrine (PWS + S) once per day for 8-weeks during training...
2017: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/28096749/evidence-based-information-needs-of-public-health-workers-a-systematized-review
#6
REVIEW
Jill Barr-Walker
OBJECTIVE: This study assessed public health workers' evidence-based information needs, based on a review of the literature using a systematic search strategy. This study is based on a thesis project conducted as part of the author's master's in public health coursework and is considered a systematized review. METHODS: Four databases were searched for English-language articles published between 2005 and 2015: PubMed, Web of Science, Library Literature & Information Science Index, and Library, Information Science & Technology Abstracts (LISTA)...
January 2017: Journal of the Medical Library Association: JMLA
https://www.readbyqxmd.com/read/28096747/implementing-a-3d-printing-service-in-a-biomedical-library
#7
Verma Walker
Three-dimensional (3D) printing is opening new opportunities in biomedicine by enabling creative problem solving, faster prototyping of ideas, advances in tissue engineering, and customized patient solutions. The National Institutes of Health (NIH) Library purchased a Makerbot Replicator 2 3D printer to give scientists a chance to try out this technology. To launch the service, the library offered training, conducted a survey on service model preferences, and tracked usage and class attendance. 3D printing was very popular, with new lab equipment prototypes being the most common model type...
January 2017: Journal of the Medical Library Association: JMLA
https://www.readbyqxmd.com/read/28096705/situational-judgment-tests-reliably-measure-professional-attributes-important-for-clinical-practice
#8
EDITORIAL
Katie Petty-Saphon, Kim A Walker, Fiona Patterson, Vicki Ashworth, Helena Edwards
Over the course of more than 40 years, international research has consistently shown situational judgment tests (SJTs) to be a reliable and valid selection method for assessing a range of professional attributes. However, SJTs still represent a relatively new selection method within the medical profession, and as such it is to be expected that applicant reactions will vary. In this Expert Opinion piece, we respond to Najim et al's article "The situational judgement test: a student's worst nightmare" by highlighting three key clarifications...
2017: Advances in Medical Education and Practice
https://www.readbyqxmd.com/read/28096541/the-mucosal-immune-system-master-regulator-of-bidirectional-gut-brain-communications
#9
REVIEW
Nick Powell, Marjorie M Walker, Nicholas J Talley
Communication between the brain and gut is not one-way, but a bidirectional highway whereby reciprocal signals between the two organ systems are exchanged to coordinate function. The messengers of this complex dialogue include neural, metabolic, endocrine and immune mediators responsive to diverse environmental cues, including nutrients and components of the intestinal microbiota (microbiota-gut-brain axis). We are now starting to understand how perturbation of these systems affects transition between health and disease...
January 18, 2017: Nature Reviews. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28096162/impact-of-extended-artesunate-duration-on-parasitological-outcome-in-a-cytocidal-murine-malaria-model
#10
Leah A Walker, David J Sullivan
Artemisinin-based combination therapies are a key pillar in global malaria control and are recommended as a first-line Plasmodium falciparum treatment. They rely upon a rapid, 4-log reduction in parasitemia by artemisinin compounds with a short half-life and the killing of remaining parasites by a partner compound with a longer half-life. Current treatment guidelines stipulate giving three 24 hour interval doses or six 12 hour interval doses over a 3-day period. Due to the short half-life of artesunate and artemether, almost all of the resulting cytocidal activity is confined within a single 48 hour asexual P...
January 17, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28095969/body-fat-distribution-ratios-and-obstructive-sleep-apnea-severity-in-youth-with-obesity
#11
Amy Glicksman, Stasia Hadjiyannakis, Nicholas Barrowman, Scott Walker, Lynda Hoey, Sherri Lynne Katz
STUDY OBJECTIVES: Obesity and regional fat distribution, measured by neck fat mass percentage using dual-energy X-ray absorptiometry (DXA), correlate with obstructive sleep apnea (OSA) severity in adults. In obese children, neck-to-waist-circumference ratio predicts OSA. This study examined associations between body fat percentage and distribution and sleep-disordered breathing (SDB) severity in obese youth, measured with DXA. METHODS: Cross-sectional retrospective study conducted at a tertiary children's hospital...
January 11, 2017: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/28095759/living-with-end-stage-renal-disease
#12
Karen Schipper, Elleke Landeweer, Tineke A Abma
BACKGROUND: Living with a renal disease often reduces quality of life because of the stress it entails. No attention has been paid to the moral challenges of living with renal disease. OBJECTIVES: To explore the moral challenges of living with a renal disease. RESEARCH DESIGN: A case study based on qualitative research. We used Walker's ethical framework combined with narrative ethics to analyse how negotiating care responsibilities lead to a new perspective on moral issues...
January 1, 2017: Nursing Ethics
https://www.readbyqxmd.com/read/28095293/mapk-signaling-promotes-axonal-degeneration-by-speeding-the-turnover-of-the-axonal-maintenance-factor-nmnat2
#13
Lauren J Walker, Daniel W Summers, Yo Sasaki, E J Brace, Jeffrey Milbrandt, Aaron DiAntonio
Injury-induced (Wallerian) axonal degeneration is regulated via the opposing actions of pro-degenerative factors such as SARM1 and a MAPK signal and pro-survival factors, the most important of which is the NAD(+) biosynthetic enzyme NMNAT2 that inhibits activation of the SARM1 pathway. Here we investigate the mechanism by which MAPK signaling facilitates axonal degeneration. We show that MAPK signaling promotes the turnover of the axonal survival factor NMNAT2 in cultured mammalian neurons as well as the Drosophila ortholog dNMNAT in motoneurons...
January 17, 2017: ELife
https://www.readbyqxmd.com/read/28095142/epidemiology-of-national-collegiate-athletic-association-women-s-lacrosse-injuries-2009-10-through-2014-15
#14
Zachary Y Kerr, Andrew E Lincoln, Shane V Caswell, David A Klossner, Nina Walker, Thomas P Dompier
CONTEXT: Participation in collegiate women's lacrosse has increased dramatically, but little recent epidemiological data exists regarding injuries. OBJECTIVE: Describe the epidemiology of National Collegiate Athletic Association (NCAA) women's lacrosse injuries during the 2009-10 through 2014-15 academic years. SETTING: Aggregate injury and exposure data collected from 40 women's lacrosse programs providing 83 team-seasons of data. PATIENTS OR OTHER PARTICIPANTS: Collegiate women's lacrosse student-athletes...
January 17, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28095085/building-community-stakeholder-perspectives-on-walking-in-malls-and-other-venues
#15
Basia Belza, Christina E Miyawaki, Peg Allen, Diane K King, David X Marquez, Dina L Jones, Sarah Janicek, Dori Rosenberg, David R Brown
Mall walking has been a popular physical activity for decades. However, little is known about why mall managers support these programs or why adults choose to walk. Our study aim was to describe mall walking programs from the perspective of walkers, managers, and leaders. Twenty-eight walkers, 16 walking program managers, and six walking program leaders from five states participated in a telephone or in-person semi-structured interview (N=50). Interview guides were developed using a social-ecological model...
January 17, 2017: Journal of Aging and Physical Activity
https://www.readbyqxmd.com/read/28092971/literature-review-of-idiopathic-toe-walking
#16
David Pomarino, Juliana Ramírez Llamas, Stephan Martin, Andrea Pomarino
PURPOSE: The main objective of this review is to gather the information available about idiopathic toe walking (ITW), its prevalence and classification, and possible therapeutic approaches. In addition, this review aims to clarify the differences between idiopathic toe walkers and tiptoe walkers with underlying neurological or muscle deficiency as primary conditions. Understanding its causes and learning to make a differential diagnosis will help determine the adequate therapeutic approach...
January 1, 2017: Foot & Ankle Specialist
https://www.readbyqxmd.com/read/28092268/phenotypic-outcomes-in-mouse-and-human-foxc1-dependent-dandy-walker-cerebellar-malformation-suggest-shared-mechanisms
#17
Parthiv Haldipur, Derek Dang, Kimberly A Aldinger, Olivia K Janson, Fabien Guimiot, Homa Adle-Biasette, William B Dobyns, Joseph R Siebert, Rosa Russo, Kathleen J Millen
FOXC1 loss contributes to Dandy-Walker malformation (DWM), a common human cerebellar malformation.  Previously we found that complete Foxc1 loss leads to aberrations in proliferation, neuronal differentiation and migration in the embryonic mouse cerebellum (Haldipur et al., 2014). We now demonstrate that hypomorphic Foxc1 mutant mice have granule and Purkinje cell abnormalities causing subsequent disruptions in postnatal cerebellar foliation and lamination. Particularly striking is the presence of a partially formed posterior lobule echoing the posterior vermis DW "tail sign" observed in human imaging studies...
January 16, 2017: ELife
https://www.readbyqxmd.com/read/28091817/teratomas-of-the-cranial-vault-a-systematic-analysis-of-clinical-outcomes-stratified-by-histopathological-subtypes
#18
Carlito Lagman, Timothy T Bui, Brittany L Voth, Lawrance K Chung, David J Seo, Courtney Duong, Mark R Libowitz, Naomi E Walker, Daniel T Nagasawa, Isaac Yang
BACKGROUND: Teratomas of the cranial vault are divided into histopathological subtypes and grouped by prognoses: mature (good prognosis), mixed/malignant and immature teratomas (intermediate prognosis). This schema also includes non-teratomatous tumors. The authors of this study sought to elucidate histologically dependent predictors of survival and further clarify the classification system of intracranial teratomas. METHODS: We performed a systematic analysis of the published literature to identify studies describing patients with intracranial teratomas diagnosed with magnetic resonance imaging (MRI) and presenting definite information on histologies, therapies, and outcomes at a minimum follow-up of 2 years...
January 14, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28091804/baseline-results-from-the-uk-signify-study-a-whole-body-mri-screening-study-in-tp53-mutation-carriers-and-matched-controls
#19
Sibel Saya, Emma Killick, Sarah Thomas, Natalie Taylor, Elizabeth K Bancroft, Jeanette Rothwell, Sarah Benafif, Alexander Dias, Christos Mikropoulos, Jenny Pope, Anthony Chamberlain, Ranga Gunapala, Louise Izatt, Lucy Side, Lisa Walker, Susan Tomkins, Jackie Cook, Julian Barwell, Vicki Wiles, Lauren Limb, Diana Eccles, Martin O Leach, Susan Shanley, Fiona J Gilbert, Helen Hanson, David Gallagher, Bala Rajashanker, Richard W Whitehouse, Dow-Mu Koh, S Aslam Sohaib, D Gareth Evans, Rosalind A Eeles
In the United Kingdom, current screening guidelines for TP53 germline mutation carriers solely recommends annual breast MRI, despite the wide spectrum of malignancies typically seen in this group. This study sought to investigate the role of one-off non-contrast whole-body MRI (WB MRI) in the screening of asymptomatic TP53 mutation carriers. 44 TP53 mutation carriers and 44 population controls were recruited. Scans were read by radiologists blinded to participant carrier status. The incidence of malignancies diagnosed in TP53 mutation carriers against general population controls was calculated...
January 16, 2017: Familial Cancer
https://www.readbyqxmd.com/read/28089128/management-of-paget-s-disease-of-the-calcaneum
#20
Joel Humphrey, Anum Pervez, Roland Walker, Ali Abbasian, Sam Singh
The calcaneum is not the most common site for Paget's disease of bone, with only a few reports of monostotic involvement. We present 2 cases of Paget's disease of bone affecting the calcaneus, present an overview of the published data, and describe our management of these interesting cases.
January 6, 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
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