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https://www.readbyqxmd.com/read/27906477/blood-pressure-measurements-in-780-apparently-healthy-cats
#1
J R Payne, D C Brodbelt, V Luis Fuentes
BACKGROUND: Mean systolic blood pressure in apparently healthy cats has been reported as approximately 125 mmHg using direct assessment, but there is greater variability in reported values using indirect assessment. Increasing age and the white-coat effect are associated with increased systolic blood pressure. HYPOTHESIS/OBJECTIVES: To report Doppler-derived blood pressure measurements from a large population of apparently healthy cats and to assess epidemiologic factors associated with recorded blood pressures...
December 1, 2016: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/27906308/linear-and-nonlinear-optical-characterization-of-self-assembled-large-area-gold-nanosphere-metasurfaces-with-sub-nanometer-gaps
#2
Jake Fontana, Melissa Maldonado, Nicholas Charipar, Scott A Trammell, Rafaela Nita, Jawad Naciri, Alberto Pique, Banahalli Ratna, Anderson S L Gomes
We created centimeter-scale area metasurfaces consisting of a quasi-hexagonally close packed monolayer of gold nanospheres capped with alkanethiol ligands on glass substrates using a directed self-assembly approach. We experimentally characterized the morphology and the linear and nonlinear optical properties of metasurfaces. We show these metasurfaces, with interparticle gaps of 0.6 nm, are modeled well using a classical (without charge transfer) description. We find a large dispersion of linear refractive index, ranging from values less than vacuum, 0...
November 28, 2016: Optics Express
https://www.readbyqxmd.com/read/27906290/polarization-variable-emitter-for-terahertz-time-domain-spectroscopy
#3
Dmitry S Bulgarevich, Makoto Watanabe, Mitsuharu Shiwa, Gudrun Niehues, Hideaki Kitahara, Masahiko Tani
We report on the progress in the development of linear polarization-variable multi-electrode emitters for terahertz time-domain spectroscopy. The results on its microfabrication, the finite element method modeling of appropriate bias distribution between electrodes, the finite-difference time-domain simulated spectral output, and actual experimental testing are presented. The rotation of the emitted terahertz field with linear polarization on an angle multiple of 45° can be achieved by synchronized bias and single polarizer rotations...
November 28, 2016: Optics Express
https://www.readbyqxmd.com/read/27906267/stochastic-model-for-the-differential-mueller-matrix-of-stationary-and-nonstationary-turbid-media
#4
J M Charbois, V Devlaminck
We show the existence of different regimes in spatial evolution of depolarization in turbid media characterized by a diagonal Mueller matrix (pure depolarizer). Experimental results previously published already established the existence of a first regime, where the depolarization follows a parabolic law with the thickness of stationary medium traveled by light. New experiments first confirm the existence of a second regime, which we have previously demonstrated, where the depolarization follows a linear law on a large scale...
December 1, 2016: Journal of the Optical Society of America. A, Optics, Image Science, and Vision
https://www.readbyqxmd.com/read/27906084/quasi-poisson-versus-negative-binomial-regression-models-in-identifying-factors-affecting-initial-cd4-cell-count-change-due-to-antiretroviral-therapy-administered-to-hiv-positive-adults-in-north-west-ethiopia-amhara-region
#5
Awoke Seyoum, Principal Ndlovu, Temesgen Zewotir
BACKGROUND: CD4 cells are a type of white blood cells that plays a significant role in protecting humans from infectious diseases. Lack of information on associated factors on CD4 cell count reduction is an obstacle for improvement of cells in HIV positive adults. Therefore, the main objective of this study was to investigate baseline factors that could affect initial CD4 cell count change after highly active antiretroviral therapy had been given to adult patients in North West Ethiopia...
November 9, 2016: AIDS Research and Therapy
https://www.readbyqxmd.com/read/27906057/the-hiv-treatment-cascade-and-care-continuum-updates-goals-and-recommendations-for-the-future
#6
REVIEW
Emma Sophia Kay, D Scott Batey, Michael J Mugavero
The HIV care continuum is a framework that models the dynamic stages of HIV care. The continuum consists of five main steps, which, at the population level, are depicted cross-sectionally as the HIV treatment cascade. These steps include diagnosis, linkage to care (LTC), retention in care (RiC), adherence to antiretroviral therapy (ART), and viral suppression. Although the HIV treatment cascade is represented as a linear, unidirectional framework, persons living with HIV (PLWH) often experience the care continuum in a less streamlined fashion, skip steps altogether, or even exit the continuum for a period of time and regress to an earlier stage...
November 8, 2016: AIDS Research and Therapy
https://www.readbyqxmd.com/read/27906025/nutritional-status-and-its-effect-on-treatment-outcome-among-hiv-infected-clients-receiving-haart-in-ethiopia-a-cohort-study
#7
Sadikalmahdi Hussen, Tefera Belachew, Nezif Hussien
PURPOSES: The aim of this study was to determine the effects of nutritional status at the start of highly active anti-retroviral therapy on treatment outcomes among HIV/AIDS patients taking HAART at Jimma University Specialized Hospital. METHODS: We performed a retrospective cohort study involving 340 adults who started highly active anti-retroviral therapy. The patients have been clinically followed for 2 years. Data were extracted from paper based medical charts by trained data collectors from January 30 to February 28, 2014 using data collection format...
September 22, 2016: AIDS Research and Therapy
https://www.readbyqxmd.com/read/27906019/patterns-of-motor-activity-in-spontaneously-hypertensive-rats-compared-to-wistar-kyoto-rats
#8
Ole Bernt Fasmer, Espen Borgå Johansen
BACKGROUND: Increased motor activity is a defining characteristic of patients with ADHD, and spontaneously hypertensive rats have been suggested to be an animal model of this disorder. In the present study, we wanted to use linear and non-linear methods to explore differences in motor activity patterns in SHR/NCrl rats compared to Wistar Kyoto (WKY/NHsd) rats. METHODS: A total number of 42 rats (23 SHR/NCrl and 19 WKY/NHsd, male and female) were tested. At PND 51, the animals' movements were video-recorded during an operant test procedure that lasted 90 min...
December 1, 2016: Behavioral and Brain Functions: BBF
https://www.readbyqxmd.com/read/27905868/short-term-effects-of-low-let-radiation-on-the-endothelial-barrier-uncoupling-of-pecam-1-and-the-production-of-endothelial-microparticles
#9
Thomas Templin, Preety Sharma, Peter Guida, Peter Grabham
A significant target for radiation-induced effects is the microvascular system, which is critical to healthy tissue function and its pathology is linked to disrupted endothelial barrier function. Low-linear energy transfer (LET) ionizing radiation is a source of noncancer pathologies in humans and little is known about the early events that could initiate subsequent diseases. However, it is well known that gamma radiation causes a very early disruption of the endothelial barrier at doses below those required for cytotoxic effects...
December 1, 2016: Radiation Research
https://www.readbyqxmd.com/read/27905607/a-heat-capacity-model-of-t-3-2-dependence-for-quantum-dots
#10
Amirul Edham Roslee, Saifful Kamaluddin Muzakir, Jamil Ismail, Mashitah M Yusoff, Rajan Jose
This article addresses the heat capacity of quantum dots (QDs) using density functional theory (DFT). By analyzing the evolution of phonon density of states and heat capacity as CdSe clusters grow from a molecular cluster into larger quantum confined solids, we have shown that their heat capacity does not fit very well with the Debye T(3) model. We observed that the number of phonon modes, which is discrete, increases as the particles grow, and the dispersion relation shows a quadratic behavior in contrast to the bulk solids whose dispersion relation is linear and equal to the sound velocity...
December 1, 2016: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/27905504/anomalous-light-scattering-by-topological-pt-symmetric-particle-arrays
#11
C W Ling, Ka Hei Choi, T C Mok, Zhao-Qing Zhang, Kin Hung Fung
Robust topological edge modes may evolve into complex-frequency modes when a physical system becomes non-Hermitian. We show that, while having negligible forward optical extinction cross section, a conjugate pair of such complex topological edge modes in a non-Hermitian -symmetric system can give rise to an anomalous sideway scattering when they are simultaneously excited by a plane wave. We propose a realization of such scattering state in a linear array of subwavelength resonators coated with gain media. The prediction is based on an analytical two-band model and verified by rigorous numerical simulation using multiple-multipole scattering theory...
December 1, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27905270/gastrointestinal-helminth-fauna-of-rodents-from-cambodia-emphasizing-the-community-ecology-of-host-parasite-associations
#12
K Chaisiri, M Chou, C C Siew, S Morand, A Ribas
Extensive field surveys of rodents were conducted in Cambodia from 2008 to 2014 to study the diversity and ecology of helminth infection in wild rodent populations. Gastrointestinal helminths were isolated from 14 species of rodents (569 individuals) trapped from different habitats (forest, dry land, rain-fed land and human settlements) in four provinces of Cambodia (Krong Preah Sihanouk, Mondolkiri, Pursat and Steung Treng). The average prevalence of parasitic infection was 58.5% (range, 16.0-64.7%), and 19 helminth taxa were identified in total...
December 1, 2016: Journal of Helminthology
https://www.readbyqxmd.com/read/27905150/genetic-parameter-estimates-for-prenatal-and-postnatal-mortality-in-nellore-cattle
#13
L C Magalhães Silva, F Baldi, C Aboujaoude, G C Venturini, L G Albuquerque, M J R Paranhos da Costa
The aim of this study was to estimate genetic parameters for prenatal (PRE) and postnatal (POS) mortality in Nellore cattle. A total of 13 141 (PRE) and 17 818 (POS) records from Nellore females were used. PRE and POS were recorded using binary scale scores: a score of '1' was given to calves that were born alive (PRE) and those that were alive at weaning (POS), and a score of '0' was given to calves that were not alive at or around birth (PRE), as well as to those weighed at birth but not at weaning (POS)...
December 1, 2016: Journal of Animal Breeding and Genetics, Zeitschrift Für Tierzüchtung und Züchtungsbiologie
https://www.readbyqxmd.com/read/27905073/critical-comments-on-eeg-sensor-space-dynamical-connectivity-analysis
#14
Frederik Van de Steen, Luca Faes, Esin Karahan, Jitkomut Songsiri, Pedro A Valdes-Sosa, Daniele Marinazzo
Many different analysis techniques have been developed and applied to EEG recordings that allow one to investigate how different brain areas interact. One particular class of methods, based on the linear parametric representation of multiple interacting time series, is widely used to study causal connectivity in the brain. However, the results obtained by these methods should be interpreted with great care. The goal of this paper is to show, both theoretically and using simulations, that results obtained by applying causal connectivity measures on the sensor (scalp) time series do not allow interpretation in terms of interacting brain sources...
November 30, 2016: Brain Topography
https://www.readbyqxmd.com/read/27904990/computer-modeling-in-predicting-the-bioactivity-of-human-5-lipoxygenase-inhibitors
#15
Mengdi Zhang, Zhonghua Xia, Aixia Yan
5-Lipoxygenase (5-LOX) is a key enzyme in the inflammatory path. Inhibitors of 5-LOX are useful for the treatment of diseases like arthritis, cancer, and asthma. We have collected a dataset including 220 human 5-LOX inhibitors for classification. A self-organizing map (SOM), a support vector machine (SVM), and a multilayer perceptron (MLP) algorithm were used to build models with selected descriptors for classifying 5-LOX inhibitors into active and weakly active ones. MACCS fingerprints were used in this model building process...
November 30, 2016: Molecular Diversity
https://www.readbyqxmd.com/read/27904985/effectiveness-of-an-intervention-to-enhance-occupational-physicians-guideline-adherence-on-sickness-absence-duration-in-workers-with-common-mental-disorders-a-cluster-randomized-controlled-trial
#16
Karlijn M van Beurden, Evelien P M Brouwers, Margot C W Joosen, Michiel R de Boer, Jaap van Weeghel, Berend Terluin, Jac J L van der Klink
Purpose Evidence-based guidelines in occupational health care improve the quality of care and may reduce sickness absence duration. Notwithstanding that, guideline adherence of occupational physicians (OPs) is limited. Based on the literature on guideline implementation, an intervention was developed that was shown to effectively improve self-reported adherence in OPs. The aim of present study was to evaluate whether this intervention leads to earlier return to work (RTW) in workers with common mental disorders (CMD)...
November 30, 2016: Journal of Occupational Rehabilitation
https://www.readbyqxmd.com/read/27904979/experimental-and-theoretical-studies-of-the-spectroscopic-properties-of-chalcone-derivatives
#17
Marek Pietrzak, Marek Józefowicz, Agnieszka Bajorek, Janina R Heldt
Newly synthesized, differently substituted chalcones (1,3-diaryl-2-propen-1-ones) have been studied using steady-state and time-resolved techniques combined with quantum-chemical modelling. To explore spectroscopic structure - property relationships the substituent (acceptor moiety) was chosen according to systematic variation in the Hammett parameter. It was shown that photophysical properties of the studied donor-acceptor (D-A) molecules can be predicted in terms of a simple model from the properties of individual chromophores (composite-model of decoupled moieties: donor (D) and acceptor (A))...
November 30, 2016: Journal of Fluorescence
https://www.readbyqxmd.com/read/27904934/part-2-analytical-expressions-of-concentrations-of-glucose-oxygen-and-gluconic-acid-in-a-composite-membrane-for-closed-loop-insulin-delivery-for-the-non-steady-state-conditions
#18
N Mehala, L Rajendran, V Meena
A mathematical model developed by Abdekhodaie and Wu (J Membr Sci 335:21-31, 2009), which describes a dynamic process involving an enzymatic reaction and diffusion of reactants and product inside glucose-sensitive composite membrane has been discussed. This theoretical model depicts a system of non-linear non-steady state reaction diffusion equations. These equations have been solved using new approach of homotopy perturbation method and analytical solutions pertaining to the concentrations of glucose, oxygen, and gluconic acid are derived...
November 30, 2016: Journal of Membrane Biology
https://www.readbyqxmd.com/read/27903954/gender-policing-during-childhood-and-the-psychological-well-being-of-young-adult-sexual-minority-men-in-the-united-states
#19
José A Bauermeister, Daniel Connochie, Laura Jadwin-Cakmak, Steven Meanley
Hegemonic masculinities (i.e., sets of socially accepted masculine behaviors and beliefs within a given time and culture) may affect the well-being of sexual minority men, yet quantitative relationships between these masculinities and well-being remain largely unexplored. Using data from a national cross-sectional survey of young sexual minority men (N = 1,484; ages 18-24 years), the current study examined the relationship between parental gender policing during childhood and adolescence and subsequent substance use and psychological distress...
November 29, 2016: American Journal of Men's Health
https://www.readbyqxmd.com/read/27903832/predictors-of-the-size-of-the-exchangeable-zinc-pool-differ-between-children-and-adults
#20
Leland V Miller, K Michael Hambidge, Janet C King, Jamie E Westcott, Nancy F Krebs
BACKGROUND: The size of the rapidly exchanging pool of body zinc has been suggested as having potential utility as a biomarker of zinc status. Knowledge of the relations of exchangeable zinc pool (EZP) size to relevant variables is necessary to adequately evaluate its use as a biomarker. OBJECTIVE: We used regression analysis to investigate associations of EZP with age, sex, body size, and zinc nutrition variables. METHODS: Data were compiled from 18 isotope tracer studies of zinc absorption in 247 children and adults (248 observations) in which EZP and relevant variables (e...
November 30, 2016: Journal of Nutrition
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