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https://www.readbyqxmd.com/read/28735455/examining-the-role-of-income-inequality-and-neighborhood-walkability-on-obesity-and-physical-activity-among-low-income-hispanic-adults
#1
Samuel D Towne, Michael L Lopez, Yajuan Li, Matthew Lee Smith, Judith L Warren, Alexandra E Evans, Marcia G Ory
Obesity is a major public health issue affecting rising medical costs and contributing to morbidity and premature mortality. We aimed to identify factors that may play a role in obesity and physical activity at the individual and environmental/neighborhood levels. We analyzed data from an adult sample who were parents of students enrolled in a school-based health and wellness program. The sample was restricted to those who were Hispanic and whose children were on free/reduced lunch (n = 377). Dependent variables: body mass index (BMI); neighborhood walkability...
July 22, 2017: Journal of Immigrant and Minority Health
https://www.readbyqxmd.com/read/28735427/biomechanical-evaluation-of-distal-biceps-tendon-repair-using-tension-slide-technique-and-knotless-fixation-technique
#2
David D Savin, Hristo Piponov, Jonathan N Watson, Ari R Youderian, Farid Amirouche, Giovanni F Solitro, Mark R Hutchinson, Benjamin A Goldberg
BACKGROUND: Acute distal biceps tendon ruptures are uncommon injuries that often affect young active males, typically resulting from an eccentric load on their dominant extremity. The purpose of this study was to compare pullout strength and tendon gapping in the tension slide technique (TST) versus a knotless fixation technique (KFT). METHODS: Two sets of experiments were performed using cadaveric elbow specimens. In the first experiment, eight elbows from different cadavers were tested to compare TST with a standard locking whipstitch with KFT, four elbows in each group, using a standard locking whipstitch...
July 22, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28735195/modified-carbon-fiber-magnetic-graphene-epoxy-composites-with-synergistic-effect-for-electromagnetic-interference-shielding-over-broad-frequency-band
#3
Jiaming Wu, Zhengmao Ye, Heyi Ge, Juan Chen, Wenxiu Liu, Zhifang Liu
The study on electromagnetic interference (EMI) shielding materials is a long-standing project in civil and military areas. In this work, a novel kind of shielding material was fabricated and the shielding effectiveness (SE) over broad frequency was investigated. The epoxy (EP) resin was reinforced by reduced graphene oxide coated carbon fiber (rGO-CF, GCF) and Fe3O4 nanoparticles deposited rGO nanohybrids (magnetic graphene, MG). With only 0.5wt% of GCF and 9wt% of MG, the GCF/MG3/EP exhibited excellent SE (>30dB over 8...
July 6, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28735007/lignocellulosic-micro-nanofibers-from-wood-sawdust-applied-to-recycled-fibers-for-the-production-of-paper-bags
#4
Quim Tarrés, Neus Pellicer, Ana Balea, Noemi Merayo, Carlos Negro, Angeles Blanco, Marc Delgado-Aguilar, Pere Mutjé
In the present work, lignocellulosic micro/nanofibers (LCMNF) were produced from pine sawdust. For that, pine sawdust was submitted to alkali treatment and subsequent bleaching stages, tailoring its chemical composition with the purpose of obtaining effective LCMNF. The obtained LCMNF were characterized and incorporated to recycled cardboard boxes with the purpose of producing recycled paper. The obtained results showed that it was possible to obtain LCMNF with the same reinforcing potential than those cellulose nanofibers (CNF) prepared by oxidative or other chemical methods In fact, the obtained papers increased the breaking length of recycled cardboard from 3338m to 5347m, being a value significantly higher than the requirements to produce paper bags...
July 19, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28734867/p-q-type-voltage-gated-calcium-channels-mediate-the-ethanol-and-crf-sensitivity-of-central-amygdala-gabaergic-synapses
#5
F P Varodayan, M L Logrip, M Roberto
The central amygdala (CeA) GABAergic system is hypothesized to drive the development of alcohol dependence, due to its pivotal roles in the reinforcing actions of alcohol and the expression of negative emotion, anxiety and stress. Recent work has also identified an important role for the CeA corticotropin-releasing factor (CRF) system in the interaction between anxiety/stress and alcohol dependence. We have previously shown that acute alcohol and CRF each increase action potential-independent GABA release in the CeA via their actions at presynaptic CRF type 1 receptors (CRF1s); however, the shared mechanism employed by these two compounds requires further investigation...
July 19, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28734745/why-are-some-people-who-have-received-overdose-education-and-naloxone-reticent-to-call-emergency-medical-services-in-the-event-of-overdose
#6
Stephen Koester, Shane R Mueller, Lisa Raville, Sig Langegger, Ingrid A Binswanger
BACKGROUND: Overdose Education and Naloxone Distribution (OEND) training for persons who inject drugs (PWID) underlines the importance of summoning emergency medical services (EMS). To encourage PWID to do so, Colorado enacted a Good Samaritan law providing limited immunity from prosecution for possession of a controlled substance and/or drug paraphernalia to the overdose victim and the witnesses who in good faith provide emergency assistance. This paper examines the law's influence by describing OEND trained PWIDs' experience reversing overdoses and their decision about calling for EMS support...
July 19, 2017: International Journal on Drug Policy
https://www.readbyqxmd.com/read/28734630/management-of-an-acinetobacter-baumannii-outbreak-in-an-intensive-care-unit
#7
M Tanguy, A Kouatchet, B Tanguy, É Pichard, S Fanello, M-L Joly-Guillou
INTRODUCTION: Acinetobacter baumannii is a ubiquitous pathogen resistant to desiccation and responsible for healthcare-associated infections (HAI), especially in intensive care units (ICU) where it is responsible for 5-10% of HAIs. An A. baumannii outbreak occurred in the ICU of the University Hospital of Angers, France. OBJECTIVES: To describe the A. baumannii outbreak and to evaluate the control measures taken. The secondary objective was to evaluate the impact of the electronic alert system on the incidence of multidrug resistance to antibiotics...
July 19, 2017: Médecine et Maladies Infectieuses
https://www.readbyqxmd.com/read/28734609/reinforcements-in-avian-wing-bones-experiments-analysis-and-modeling
#8
E Novitskaya, C J Ruestes, M M Porter, V A Lubarda, M A Meyers, J McKittrick
Almost all species of modern birds are capable of flight; the mechanical competency of their wings and the rigidity of their skeletal system evolved to enable this outstanding feat. One of the most interesting examples of structural adaptation in birds is the internal structure of their wing bones. In flying birds, bones need to be sufficiently strong and stiff to withstand forces during takeoff, flight, and landing, with a minimum of weight. The cross-sectional morphology and presence of reinforcing structures (struts and ridges) found within bird wing bones vary from species to species, depending on how the wings are utilized...
July 14, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28734553/dietary-inflammatory-index-and-liver-status-in-subjects-with-different-adiposity-levels-within-the-predimed-trial
#9
Irene Cantero, Itziar Abete, Nancy Babio, Fernando Arós, Dolores Corella, Ramón Estruch, Montse Fitó, James R Hebert, M Ángel Martínez-González, Xavier Pintó, M Puy Portillo, Miguel Ruiz-Canela, Nitin Shivappa, Julia Wärnberg, Enrique Gómez-Gracia, J Antoni Tur, Jordi Salas-Salvadó, M Angeles Zulet, J Alfredo Martínez
BACKGROUND & AIMS: To assess the possible association between a validated Dietary Inflammatory Index (DII) and specific dietary components with suitable non-invasive markers of liver status in overweight and obese subjects within the PREDIMED study. METHODS: A cross-sectional study encompassing 794 randomized overweight and obese participants (mean ± SD age: 67.0 ± 5.0 y, 55% females) from the PREDIMED (PREvención con DIeta MEDiterránea) trial was conducted...
July 6, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28734459/the-roles-of-phasic-and-tonic-dopamine-in-tic%C3%A2-learning-and-expression
#10
REVIEW
Tiago V Maia, Vasco A Conceição
Tourette syndrome (TS) prominently involves dopaminergic disturbances, but the precise nature of those disturbances has remained elusive. A substantial body of empirical work and recent computational models have characterized the specific roles of phasic and tonic dopamine (DA) in action learning and selection, respectively. Using insights from this work and models, we suggest that TS involves increases in both phasic and tonic DA, which produce increased propensities for tic learning and expression, respectively...
June 8, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/28734429/ascending-aorta-stenting-after-off-pump-aortic-wrapping-in-stanford-a-retrograde-aortic-dissection
#11
Dorian Verscheure, Ramzi Ramadan, Alexandre Azmoun, Julien Guihaire, Claude Angel, Philippe Brenot, Philippe Deleuze
We report 4 cases of off-pump ascending aorta wrapping combined with ascending aorta stenting in retrograde Stanford A acute aortic dissection (SAAD). Since 2008, 18 patients have undergone wrapping of the ascending aorta at our institution. Four patients had a persistent circulating false lumen in the ascending aorta after wrapping, with a threat to the aortic root. We chose an endovascular approach with ascending aorta stenting. Follow-up computed tomography showed a reapplication of the intimal flap in the reinforced aorta...
August 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28734109/the-cost-of-oropharyngeal-cancer-in-england-a-retrospective-hospital-data-analysis
#12
Sam T Keeping, Michael J Tempest, Stephanie J Stephens, Stuart M Carroll, Richard Simcock, Terence M Jones, Richard Shaw
OBJECTIVES: To estimate the total costs of treating head and neck cancers, specifically oropharyngeal, laryngeal and oral cavity cancer, in secondary care facilities in England during the period 2006/2007 to 2010/2011. DESIGN: Patient records were extracted from an English hospital database to estimate the number of patients treated for oropharyngeal, laryngeal and oral cavity cancer in England. Identified resource use was linked to published United Kingdom cost estimates to quantify the reimbursement of treatment through the Payment by Results system...
July 22, 2017: Clinical Otolaryngology
https://www.readbyqxmd.com/read/28733946/caretaker-awareness-of-health-care-provided-developmental-screening-increases-from-2007-to-2012
#13
Brian Barger, Andrew Roach, Gabriel Moreno
Objectives Developmental screening is considered critical to identifying children with developmental delays and disabilities so that they may receive early intervention. To date, only a handful of studies report data on the percentage of health care professionals (HCP) who provide developmental screening. These reports are limited by low participation rates and reporters being pediatricians who may be biased towards reporting higher rates of developmental screening. The purpose of this study is to verify reported increases by reporting on changes in caretakers' awareness of HCP provided developmental screening from 2007/2008 to 2011/2012...
July 21, 2017: Maternal and Child Health Journal
https://www.readbyqxmd.com/read/28733728/totally-extraperitoneal-approach-for-ventral-hernia
#14
Sante Capitano
BACKGROUND: In open surgery, extraperitoneal sublay mesh implantation is generally preferred to intraperitoneal placement, following the same principles as in "giant prosthetic reinforcement of the visceral sac" described for inguinal hernia repair [1, 2]. Miserez and Penninckx in 2002 described an endoscopic totally preperitoneal ventral hernia repair in a small cohort of 15 cases [3]. Unfortunately, this technique has not spread, probably because of the technical difficulties that require, but not for effectiveness...
July 21, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28733004/study-on-thermal-mechanical-and-adsorption-properties-of-amine-functionalized-mcm-41-pmma-and-mcm-41-ps-nanocomposites-prepared-by-ultrasonic-irradiation
#15
Gholamhossein Mohammadnezhad, Saeed Abad, Roozbeh Soltani, Mohammad Dinari
In this study, two common industrial polymers, poly(methyl methacrylate) (PMMA) and polystyrene (PS), were incorporated into amine-functionalized MCM-41 mesoporous silica as reinforcement agents via an ultrasonic assisted method as a facile, fast, eco-friendly, and versatile synthetic tool. Amino functionalization of MCM-41 were performed by 3-aminopropyl triethoxysilane as a coupling agent and it is denoted as APTS-MCM-41. The obtained nanocomposites (NCs), APTS-MCM-41/PMMA and APTS-MCM-41/PS, were characterized by Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), scanning and transmission electron microscopies (SEM and TEM), and thermogravimetric analysis (TGA)...
November 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28732934/enhanced-crack-suppression-ability-of-hybrid-glass-fiber-reinforced-laminated-composites-fabricated-using-gnp-epoxy-system-by-optimized-udm-parameters
#16
Pannalal Choudhury, Sudipta Halder, Nazrul Islam Khan, Jialai Wang, Krishna Murari Pandey
In this work, GFRPs with layer-up [+22/-22/90n]s were prepared and hybridized with 0.5wt% of GNPs to introduce in-situ crack suppression ability. Optimization of the processing parameters of ultrasonic dual mode mixing (UDM) process was adopted to disperse GNPs uniformly in the epoxy system and place them evenly at the interfacial zones of GFRPs. Test results show that 102% and 153% enhancement in tensile strength and Young's modulus has been achieved by the proposed method. Low stirring speed and low pulse-off time show significant effect on properties of the GFRPs...
November 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28732918/hydrophobic-structural-modification-of-chitosan-and-its-impact-on-nanoparticle-synthesis-a-physicochemical-study
#17
B Jothimani, S Sureshkumar, B Venkatachalapathy
Chitin is a naturally occurring fully N-acylated biopolymer which cannot be converted into nanomaterial easily due to its inherent rigidity and chemical inertness. These properties limit the utility of chitin in nanomaterial-based applications. Therefore, our aim in the present work was, to prepare chitin like fully N-acylated derivatives with a hydrophobic moiety and study the impact on nanoparticles synthesis. We report such a fully substituted derivative, N-(Thiophene-2-acetyl)chitosan, its characterization and physicochemical studies of the nanoparticles synthesized...
October 1, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28732317/cross-lagged-relations-between-motives-and-substance-use-can-use-strengthen-your-motivation-over-time
#18
Christine A Lee, Karen J Derefinko, Heather A Davis, Richard Milich, Donald R Lynam
Motives for substance use have garnered considerable attention due to the strong predictive utility of this construct, both in terms of use and problems associated with use. The current study examined the cross-lagged relations between alcohol use and motives, and marijuana use and motives over three yearly assessment periods in a large sample (N=526, 48% male) of college students. The relations between substance use and motives were assessed at each time point, allowing for the examination of these inter-relations over time...
June 28, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28732247/repairing-sciatic-nerve-injury-with-an-epo-loaded-nerve-conduit-and-sandwiched-in-strategy-of-transplanting-mesenchymal-stem-cells
#19
Wei Zhang, Lihai Zhang, Jianheng Liu, Licheng Zhang, Jian Zhang, Peifu Tang
Transplantation of a biosynthetic nerve conduit carrying neuro-protective cytokines is promising for treating peripheral nerve injury. Here we developed a novel strategy for repairing sciatic nerve injury by EPO-loaded Chitosan nerve conduit (EPO/Chi) and sandwiched-in transplantation of mesenchymal stem cells (MSCs). Then, the beneficial effect of EPO/Chi + MSCs on nerve regeneration was also further investigated by in vitro cellular experiments. In vivo experiment showed that combination of EPO-loaded Chitosan nerve conduit with MSCs could significantly accelerate nerve healing and improve morphological repair...
July 11, 2017: Biomaterials
https://www.readbyqxmd.com/read/28732231/kernel-dynamic-policy-programming-applicable-reinforcement-learning-to-robot-systems-with-high-dimensional-states
#20
Yunduan Cui, Takamitsu Matsubara, Kenji Sugimoto
We propose a new value function approach for model-free reinforcement learning in Markov decision processes involving high dimensional states that addresses the issues of brittleness and intractable computational complexity, therefore rendering the value function approach based reinforcement learning algorithms applicable to high dimensional systems. Our new algorithm, Kernel Dynamic Policy Programming (KDPP) smoothly updates the value function in accordance to the Kullback-Leibler divergence between current and updated policies...
June 29, 2017: Neural Networks: the Official Journal of the International Neural Network Society
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