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https://www.readbyqxmd.com/read/28528442/herpesvirus-capsid-assembly-and-dna-packaging
#1
Jason D Heming, James F Conway, Fred L Homa
Herpes simplex virus type I (HSV-1) is the causative agent of several pathologies ranging in severity from the common cold sore to life-threatening encephalitic infection. During productive lytic infection, over 80 viral proteins are expressed in a highly regulated manner, resulting in the replication of viral genomes and assembly of progeny virions. The virion of all herpesviruses consists of an external membrane envelope, a proteinaceous layer called the tegument, and an icosahedral capsid containing the double-stranded linear DNA genome...
2017: Advances in Anatomy, Embryology, and Cell Biology
https://www.readbyqxmd.com/read/28528351/the-influence-of-critical-shoulder-angle-on-secondary-rotator-cuff-insufficiency-following-shoulder-arthroplasty
#2
Simone Cerciello, Andrew Paul Monk, Enrico Visonà, Stefano Carbone, Thomas Bradley Edwards, Nicola Maffulli, Gilles Walch
INTRODUCTION: Secondary cuff failure after shoulder replacement is disabling and often requires additional surgery. Increased critical shoulder angle (CSA) has been found in patients with cuff tear compared to normal subjects. The interobserver reliability of the CSA and the relationship between CSA and symptomatic secondary cuff failure after shoulder replacement were investigated. MATERIALS AND METHODS: Nineteen patients with symptomatic cuff failure after anatomic shoulder replacement (mean FU 45 months) were compared to a control group of 29 patients showing no signs of symptomatic cuff failure (mean FU 105...
May 20, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28528323/c-graph-a-validated-scoring-system-for-early-stratification-of-neurologic-outcome-after-out-of-hospital-cardiac-arrest-treated-with-targeted-temperature-management
#3
Erich L Kiehl, Alex M Parker, Ralph M Matar, Matthew F Gottbrecht, Michelle C Johansen, Mark P Adams, Lori A Griffiths, Steven P Dunn, Katherine L Bidwell, Venu Menon, Kyle B Enfield, Lawrence W Gimple
BACKGROUND: Out-of-hospital cardiac arrest (OHCA) results in significant morbidity and mortality, primarily from neurologic injury. Predicting neurologic outcome early post-OHCA remains difficult in patients receiving targeted temperature management. METHODS AND RESULTS: Retrospective analysis was performed on consecutive OHCA patients receiving targeted temperature management (32-34°C) for 24 hours at a tertiary-care center from 2008 to 2012 (development cohort, n=122)...
May 20, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28528260/hexavalent-chromium-induced-oxidative-stress-and-apoptosis-in-pycnoporus-sanguineus
#4
Mi Feng, Hua Yin, Hui Peng, Zehua Liu, Guining Lu, Zhi Dang
White rot fungi have been proved to be a promising option for the removal of heavy metals, understanding their toxic response to heavy metals is conducive to developing and popularizing fungi-based remediation technologies so as to lessen the hazard of heavy metals. In this study, Cr(VI)-induced oxidative stress and apoptosis in Pycnoporus sanguineus, a species of white rot fungi were investigated. The results suggested that high level of Cr(VI) promoted the formation of ROS, including H2O2, O2(•-) and ·OH...
May 18, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28528253/pressure-induced-transformations-in-sorbic-acid
#5
G D Saraiva, J R Maia, J A Lima, C E S Nogueira, P T C Freire, F F de Sousa, A M R Teixeira, J Mendes Filho
This research reports a pressure dependent Raman study of the sorbic acid between 0.0 and 10.0GPa. The unpolarized Raman spectra were measured in the spectral range of 20-3000cm(-1). The high-pressure Raman scattering study of the sorbic acid showed that it underwent a gradual, disordering process. At the room temperature and at the ambient pressure conditions, the crystal structure of the sorbic acid belongs to the monoclinic system with a C2/c (C2h(6)) space group. The pressure increase induced a higher disorder in the monoclinic unit cell, since a single bending mode, and only very broad stretching Raman modes are present at pressure of ~10GPa...
May 10, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28528235/mapping-natural-radioactivity-of-soil-samples-in-different-regions-of-punjab-india
#6
Komal Saini, B S Bajwa
Thallium activated sodium iodide (NaI(Tl)) detector and multi channel analyzer has been utilized to measure gamma rays emitted by radio nuclides found in soil samples of south-west (SW) region of Punjab state, India where elevated level of uranium of around value of 700µg/l in groundwater has been reported. For comparative study, soil samples were also collected and analyzed from west (W) and north east (NE) regions of the state. Uranium and potassium has been found to be comparatively higher in SW region whereas thorium level is higher in W and NE part of Punjab state...
May 13, 2017: Applied Radiation and Isotopes
https://www.readbyqxmd.com/read/28528052/three-cases-of-aneurysmatic-coronary-fistulas-associated-with-mitral-valve-insufficiency
#7
Luca Sandrelli, Giuseppe Petrone, Giancarlo Sportelli, Mario Fabbrocini
We report three cases of coronary fistula aneurysm associated with mitral valve insufficiency. The patients were referred to our cardiovascular department because of exertional dyspnea. Echocardiography showed severe mitral valve insufficiency resulting from leaflet flail or prolapse and normal left ventricular function. In all three cases, preoperative coronary angiography showed coronary-to-pulmonary artery fistula associated with significant aneurysm of the fistulous tract. All patients underwent uneventful mitral valve repair and external ligation of the fistulas...
June 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28528016/the-influence-of-humeral-neck-shaft-angle-and-glenoid-lateralization-on-range-of-motion-in-reverse-shoulder-arthroplasty
#8
Birgit S Werner, Jean Chaoui, Gilles Walch
BACKGROUND: Recent developments in reverse shoulder arthroplasty (RSA) have focused on changes in several design-related parameters, including humeral component design, to allow for easier convertibility. Alterations in humeral inclination and offset on shoulder kinematics may have a relevant influence on postoperative outcome. This study used a virtual computer simulation to evaluate the influence of humeral neck shaft angle and glenoid lateralization on range of motion in onlay design RSA...
May 17, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28527997/zinc-oxide-nanoparticles-mediated-cytotoxicity-mitochondrial-membrane-potential-and-level-of-antioxidants-in-presence-of-melatonin
#9
Sruthi S, N Millot, Mohanan Pv
Zinc oxide nanoparticles (ZnO NPs) are widely used in a variety of products and are currently being investigated for biomedical applications. However, they have the potential to interact with macromolecules like proteins, lipids and DNA within the cells which makes the safe biomedical application difficult. The toxicity of the ZnO NP is mainly attributed reactive oxygen species (ROS) generation. Different strategies like iron doping, polymer coating and external supply of antioxidants have been evaluated to minimize the toxic potential of ZnO NPs...
May 17, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28527763/aluminium-resistant-plant-growth-promoting-bacteria-induce-overexpression-of-aluminium-stress-related-genes-in-arabidopsis-thaliana-and-increase-the-ginseng-tolerance-against-aluminium-stress
#10
Mohamed El-Agamy Farh, Yeon-Ju Kim, Johan Sukweenadhi, Priyanka Singh, Deok-Chun Yang
Panax ginseng is an important cash crop in the Asian countries due to its pharmaceutical effects, however the plant is exposed to various abiotic stresses, lead to reduction of its quality. One of them is the Aluminum (Al) accumulation. Plant growth promoting bacteria which able to tolerate heavy metals has been considered as a new trend for supporting the growth of many crops in heavy metal occupied areas. In this study, twelve bacteria strains were isolated from rhizosphere of diseased Korean ginseng roots located in Gochang province, Republic of Korea and tested for their ability to grow in Al-embedded broth media...
July 2017: Microbiological Research
https://www.readbyqxmd.com/read/28527749/visual-and-proprioceptive-feedback-differently-modulate-the-spatial-representation-of-number-and-time-in-children
#11
Elena Nava, Luca Rinaldi, Hermann Bulf, Viola Macchi Cassia
There has been compelling evidence favoring the idea that human adults similarly represent number and time along a horizontal mental number line (MNL) and mental time line (MTL), respectively. Yet, analogies drawn between the MNL and MTL have been challenged by recent studies suggesting that adults' representations of number and time arise from different spatial frames of reference; whereas the MNL relies on both hand-centered and object-centered coordinates, the MTL appears to be exclusively anchored on object-centered coordinates...
May 18, 2017: Journal of Experimental Child Psychology
https://www.readbyqxmd.com/read/28527590/phosphate-scouting-by-root-tips
#12
REVIEW
Steffen Abel
Chemistry assigns phosphate (Pi) dominant roles in metabolism; however, it also renders the macronutrient a genuinely limiting factor of plant productivity. Pi bioavailability is restricted by low Pi mobility in soil and antagonized by metallic toxicities, which force roots to actively seek and selectively acquire the vital element. During the past few years, a first conceptual outline has emerged of the sensory mechanisms at root tips, which monitor external Pi and transmit the edaphic cue to inform root development...
May 17, 2017: Current Opinion in Plant Biology
https://www.readbyqxmd.com/read/28527525/age-related-white-matter-integrity-differences-in-oldest-old-without-dementia
#13
Ilana J Bennett, Dana E Greenia, Pauline Maillard, S Ahmad Sajjadi, Charles DeCarli, Maria M Corrada, Claudia H Kawas
Aging is known to have deleterious effects on cerebral white matter, yet little is known about these white matter alterations in advanced age. In this study, 94 oldest-old adults without dementia (90-103 years) underwent diffusion tensor imaging to assess relationships between chronological age and multiple measures of integrity in 18 white matter regions across the brain. Results revealed significant age-related declines in integrity in regions previously identified as being sensitive to aging in younger-old adults (corpus callosum, fornix, cingulum, external capsule)...
April 26, 2017: Neurobiology of Aging
https://www.readbyqxmd.com/read/28527498/electronic-health-record-transition-considerations
#14
REVIEW
Louis E Penrod
After an initial phase of electronic health record (EHR) solutions for both independent practices and larger health care organizations, we are now entering a period in which transitioning between EHRs is becoming more common. Many of the decisions and implementation processes for an EHR transition are similar to those encountered during the transition from paper records to an EHR. Detailed project planning and management are essential to keep the effort on track and within budget to a successful conclusion...
May 2017: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/28527468/insight-into-electric-field-induced-rupture-mechanism-of-water-in-toluene-emulsion-films-from-a-model-system
#15
Desislava Dimova, Stoyan Pisov, Nikolay Panchev, Miroslava Nedyalkova, Sergio Madurga, Ana Proykova
This paper presents a model, which we have designed to get insight into the development of electro-induced instability of a thin toluene emulsion film in contact with the saline aqueous phase. Molecular dynamics (MD) simulations demonstrate the role of charge accumulation in the toluene-film rupture induced by a DC electric field. Two ensembles-NVT and NPT-are used to determine the critical value of the external field at which the film ruptures, the charge distribution and capacitance of the thin film, number densities, and the film structure...
May 21, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28527451/resonance-tunneling-electron-vibrational-spectroscopy-of-polyoxometalates
#16
F I Dalidchik, S A Kovalevskii, E M Balashov
The tunneling spectra of the ordered monolayer films of decamolybdodicobaltate (DMDC) compounds deposited from aqueous solutions on HOPG were measured by scanning tunnel microscopy in air. The DMDC spectra, as well as the tunneling spectra of other polyoxometalates (POMs), exhibit well-defined negative differential resistances (NDRs). The mechanism of formation of these spectral features was established from the collection of revealed NDR dependences on the external varying parameters and found to be common to all systems exhibiting Wannier-Stark localization...
May 21, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28527448/estimating-thermodynamic-expectations-and-free-energies-in-expanded-ensemble-simulations-systematic-variance-reduction-through-conditioning
#17
Manuel Athènes, Pierre Terrier
Markov chain Monte Carlo methods are primarily used for sampling from a given probability distribution and estimating multi-dimensional integrals based on the information contained in the generated samples. Whenever it is possible, more accurate estimates are obtained by combining Monte Carlo integration and integration by numerical quadrature along particular coordinates. We show that this variance reduction technique, referred to as conditioning in probability theory, can be advantageously implemented in expanded ensemble simulations...
May 21, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28527431/osmotic-and-diffusio-osmotic-flow-generation-at-high-solute-concentration-ii-molecular-dynamics-simulations
#18
Hiroaki Yoshida, Sophie Marbach, Lydéric Bocquet
In this paper, we explore osmotic transport by means of molecular dynamics (MD) simulations. We first consider osmosis through a membrane and investigate the reflection coefficient of an imperfectly semi-permeable membrane, in the dilute and high concentration regimes. We then explore the diffusio-osmotic flow of a solute-solvent fluid adjacent to a solid surface, driven by a chemical potential gradient parallel to the surface. We propose a novel non-equilibrium MD (NEMD) methodology to simulate diffusio-osmosis, by imposing an external force on every particle, which properly mimics the chemical potential gradient on the solute in spite of the periodic boundary conditions...
May 21, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28527386/gait-patterns-of-children-and-adolescents-with-charcot-marie-tooth-disease
#19
Elizabeth Wojciechowski, Amy Sman, Kayla Cornett, Jacqueline Raymond, Kathryn Refshauge, Manoj P Menezes, Joshua Burns
Gait abnormalities reported in childhood Charcot-Marie-Tooth disease (CMT) include foot-drop, reduced ankle power at push-off and increased knee and hip flexion for swing clearance ('steppage-gait'). The purpose of this study was to describe the gait patterns of 60 children aged 6-17 years with CMT (CMTall) and distinguish differences based on functional weakness using the CMT Pediatric Scale (CMTPedS). Data were captured using Vicon Nexus system and compared to 50 healthy norms. Data were subdivided into three groups denoting increasing severity of dorsiflexion and plantarflexion weakness from the CMTPedS: no difficulty heel or toe walking (CMTND), difficulty heel walking (CMTDH), difficulty toe and heel walking (CMTDTH)...
May 8, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28527339/selective-removal-of-toxic-cr-vi-from-aqueous-solution-by-adsorption-combined-with-reduction-at-a-magnetic-nanocomposite-surface
#20
Nazia H Kera, Madhumita Bhaumik, Kriveshini Pillay, Suprakas Sinha Ray, Arjun Maity
The adsorption of toxic hexavalent chromium (Cr(VI)) and its reduction to trivalent chromium (Cr(III)) are important processes for the treatment of industrial wastewater. Conducting polymers can adsorb and reduce Cr(VI) to less toxic Cr(III) but have low adsorption capacities due to agglomeration of particles and are difficult to separate from treated water. In this study, magnetic polypyrrole (PPy)-polyaniline (PANI)/iron oxide (Fe3O4) nanocomposite was synthesized for the selective removal of Cr(VI) in aqueous solution...
May 10, 2017: Journal of Colloid and Interface Science
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