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https://www.readbyqxmd.com/read/28229474/residents-engagement-in-everyday-activities-and-its-association-with-thriving-in-nursing-homes-a-cross-sectional-study
#1
Sabine Björk, Marie Lindkvist, Anders Wimo, Christina Juthberg, Ådel Bergland, David Edvardsson
AIM: To describe the prevalence of everyday activity engagement for older people in nursing homes and the extent to which engagement in everyday activities is associated with thriving. BACKGROUND: Research into residents' engagement in everyday activities in nursing homes has focused primarily on associations with quality of life and prevention and management of neuropsychiatric symptoms. However, the mere absence of symptoms do not necessarily guarantee experiences of well-being...
February 23, 2017: Journal of Advanced Nursing
https://www.readbyqxmd.com/read/28222817/livestock-and-feed-water-productivity-in-the-mixed-crop-livestock-system
#2
M Bekele, A Mengistu, B Tamir
Recently with limited information from intensified grain-based farming systems in developed countries, livestock production is challenged as being huge consumer of freshwater. The smallholder mixed crop-livestock (MCL) system which is predominant in developing countries like Ethiopia, is maintained with considerable contributions of crop residues (CR) to livestock feeding. Inclusion of CR is expected to reduce the water requirement for feed production resulting improvement in livestock water productivity (LWP)...
February 22, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/28222514/one-year-evolution-of-behavioral-and%C3%A2-psychological-symptoms-of-dementia-in-patients-initially-hospitalized-in%C3%A2-cognitive-behavioral-units-the-evital-prospective-cohort
#3
Isabelle Rouch, Elodie Pongan, Béatrice Trombert, Florence Fabre, Nicolas Auguste, Claire Sellier, Magalie Freulon, Sophie Jacqueline, Denis Federico, Christelle Mouchoux, Géraldine Martin-Gaujard, Pierre Krolak-Salmon, Bernard Laurent, Jean-Michel Dorey
BACKGROUND: The 2008-2012 French Alzheimer's Plan has provided hospital Cognitive and Behavioral Units (CBU) to improve the management of patients with productive behavioral and psychological symptoms of dementia (BPSD). Little is known concerning the behavioral outcome of these patients after discharge. OBJECTIVE: The present study investigated the long-term evolution of BPSD over one year after CBU discharge. METHODS: The EVITAL cohort included 221 participants admitted to the CBUs of 3 French hospitals...
February 10, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28217410/design-and-analysis-of-a-field-modulated-magnetic-screw-for-artificial-heart
#4
Zhijian Ling, Jinghua Ji, Fangqun Wang, Fangfang Bian
This paper proposes a new electromechanical energy conversion system, called Field Modulated Magnetic Screw (FMMS) as a high force density linear actuator for artificial heart. This device is based on the concept of magnetic screw and linear magnetic gear. The proposed FMMS consists of three parts with the outer and inner carrying the radially magnetized helically permanent-magnet (PM), and the intermediate having a set of helically ferromagnetic pole pieces, which modulate the magnetic fields produced by the PMs...
May 2017: AIP Advances
https://www.readbyqxmd.com/read/28217088/a-non-parametric-approach-to-the-overall-estimate-of-cognitive-load-using-nirs-time-series
#5
Soheil Keshmiri, Hidenobu Sumioka, Ryuji Yamazaki, Hiroshi Ishiguro
We present a non-parametric approach to prediction of the n-back n ∈ {1, 2} task as a proxy measure of mental workload using Near Infrared Spectroscopy (NIRS) data. In particular, we focus on measuring the mental workload through hemodynamic responses in the brain induced by these tasks, thereby realizing the potential that they can offer for their detection in real world scenarios (e.g., difficulty of a conversation). Our approach takes advantage of intrinsic linearity that is inherent in the components of the NIRS time series to adopt a one-step regression strategy...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28215800/the-effects-of-coexisting-na2so4-on-heterogeneous-uptake-of-no2-on-caco3-particles-at-various-rhs
#6
Fang Tan, Bo Jing, Shengrui Tong, Maofa Ge
Atmospheric particles can undergo nucleation, coagulation, chemical-aging, dissolution-precipitation or other atmospheric processes, resulting in complex multicomponent aerosols. The coexisting species have potentially important consequences in the heterogeneous reactions of multicomponent aerosol particles with polluted gases, which are still poorly understood. The effect of coexisting Na2SO4 on heterogeneous uptake of NO2 on CaCO3 particles is investigated in a broad RH range. The combination of DRIFTS, Raman, SEM and IC provides qualitative and quantitative information about the formation of nitrate and other surface species...
February 16, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28214169/protective-misperception-prospective-study-of-weight-self-perception-and-blood-pressure-in-adolescents-with-overweight-and-obesity
#7
Emily S Unger, Ichiro Kawachi, Carly E Milliren, Kendrin R Sonneville, Idia B Thurston, Holly C Gooding, Tracy K Richmond
PURPOSE: Underestimating one's weight is often seen as a barrier to weight loss. However, recent research has shown that weight underperception may be beneficial, with lower future weight gain and fewer depressive symptoms. Here, we examine the relationship between adolescent weight underperception and future blood pressure. METHODS: Using data from the National Longitudinal Study of Adolescent to Adult Health, we obtained a nationally representative sample of 2,463 adolescents with overweight and obesity (students in grades 8-12 in 1996)...
February 14, 2017: Journal of Adolescent Health: Official Publication of the Society for Adolescent Medicine
https://www.readbyqxmd.com/read/28212282/collagen-gold-nanoparticle-conjugates-for-versatile-biosensing
#8
Sarah Unser, Samuel Holcomb, ReJeana Cary, Laura Sagle
Integration of noble metal nanoparticles with proteins offers promising potential to create a wide variety of biosensors that possess both improved selectivity and versatility. The multitude of functionalities that proteins offer coupled with the unique optical properties of noble metal nanoparticles can allow for the realization of simple, colorimetric sensors for a significantly larger range of targets. Herein, we integrate the structural protein collagen with 10 nm gold nanoparticles to develop a protein-nanoparticle conjugate which possess the functionality of the protein with the desired colorimetric properties of the nanoparticles...
February 15, 2017: Sensors
https://www.readbyqxmd.com/read/28205215/multicenter-validation-of-an-mmse-moca-conversion-table
#9
David Bergeron, Kelsey Flynn, Louis Verret, Stéphane Poulin, Rémi W Bouchard, Christian Bocti, Tamàs Fülöp, Guy Lacombe, Serge Gauthier, Ziad Nasreddine, Robert Jr Laforce
BACKGROUND: Accumulating evidence points to the superiority of the MoCA over the MMSE as a cognitive screening tool. To facilitate the transition from the MMSE to the MoCA in clinical and research settings, authors have developed MMSE-MoCA conversion tables. However, it is unknown whether a conversion table generated from Alzheimer's disease (AD) patients would apply to patients with other dementia subtypes like vascular dementia or frontotemporal dementia. Furthermore, the reliability and accuracy of MMSE-MoCA conversion tables has not been properly evaluated...
February 15, 2017: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/28195273/light-transmission-of-novel-cad-cam-materials-and-their-influence-on-the-degree-of-conversion-of-a-dualcuring-resin-cement
#10
Ferhan Egilmez, Gulfem Ergun, Isil Cekic-Nagas, Pekka K Vallittu, Lippo V J Lassila
PURPOSE: To evaluate the light transmission characteristics of different types, shades, and thicknesses of novel CAD/CAM materials and their effect on the degree of conversion (DC) of a dual-curing resin cement. MATERIALS AND METHODS: Square specimens (12 × 12 mm2) of three CAD/CAM materials - GC Cerasmart, Lava Ultimate, Vita Enamic - of different thicknesses (1.00, 1.50, and 2.00 mm, n = 5 per thickness) were irradiated with an LED unit. The amount of transmitted light was quantified...
February 10, 2017: Journal of Adhesive Dentistry
https://www.readbyqxmd.com/read/28194424/a-mathematical-model-of-neutral-lipid-content-in-terms-of-initial-nitrogen-concentration-and-validation-in-coelastrum-sp-ha-1-and-application-in-chlorella-sorokiniana
#11
Zhenhua Yang, Yue Zhao, Zhiyong Liu, Chenfeng Liu, Zhipeng Hu, Yuyong Hou
Microalgae are considered to be a potential major biomass feedstock for biofuel due to their high lipid content. However, no correlation equations as a function of initial nitrogen concentration for lipid accumulation have been developed for simplicity to predict lipid production and optimize the lipid production process. In this study, a lipid accumulation model was developed with simple parameters based on the assumption protein synthesis shift to lipid synthesis by a linear function of nitrogen quota. The model predictions fitted well for the growth, lipid content, and nitrogen consumption of Coelastrum sp...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28186956/uterine-artery-doppler-pulsatility-index-at-11-38-weeks-in-icsi-pregnancies-with-egg-donation
#12
Annalisa Inversetti, Luca Mandia, Massimo Candiani, Irene Cetin, Alessandro Larcher, Valeria Savasi, Enrico Papaleo, Paolo Cavoretto
BACKGROUND: Uterine artery Doppler pulsatility index (UtA-PI) may be different in pregnancies with egg donation (ICSI-ED) as compared to conceptions with autologous intra-cytoplasmatic sperm injection (autologous ICSI) and to spontaneous conceptions (SC). METHODS: One hundred and ninety-four pregnant women with different modes of conception (MC) were prospectively evaluated: 53 ICSI-ED, 36 autologous ICSI and 105 SC. To evaluate the effects of different MC on PI, multivariable linear regression (MLR) models predicting UtA-PI were fitted after adjustment for maternal age, body mass index, race, parity, smoking status and gestational age...
February 10, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28186820/phase-matching-using-the-linear-electro-optic-effect
#13
Zijian Cui, Dean Liu, Jie Miao, Aihua Yang, Jianqiang Zhu
Phase matching is a necessary condition for achieving high-efficiency optical-frequency conversion. To date, practical means of accomplishing phase matching in homogeneous crystals remain limited, despite considerable efforts. Herein, we report a new class of methods aimed at achieving quasiperfect phase matching, based on controllable birefringence produced via the linear electro-optic effect, termed "voltage-tuning phase matching." The wave vectors of the induced polarization and the generated fields can be matched and maintained along the direction of propagation by introducing an external electric field...
January 27, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28179487/supplemental-citrulline-is-more-efficient-than-arginine-in-increasing-systemic-arginine-availability-in-mice
#14
Umang Agarwal, Inka C Didelija, Yang Yuan, Xiaoying Wang, Juan C Marini
Background: Arginine is considered to be an essential amino acid in various (patho)physiologic conditions of high demand. However, dietary arginine supplementation suffers from various drawbacks, including extensive first-pass extraction. Citrulline supplementation may be a better alternative than arginine, because its only fate in vivo is conversion into arginine.Objective: The goal of the present research was to determine the relative efficiency of arginine and citrulline supplementation to improve arginine availability...
February 8, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28177346/how-to-improve-breeding-value-prediction-for-feed-conversion-ratio-in-the-case-of-incomplete-longitudinal-body-weights
#15
V H Huynh Tran, H Gilbert, I David
With the development of automatic self-feeders, repeated measurements of feed intake are becoming easier in an increasing number of species. However, the corresponding BW are not always recorded, and these missing values complicate the longitudinal analysis of the feed conversion ratio (FCR). Our aim was to evaluate the impact of missing BW data on estimations of the genetic parameters of FCR and ways to improve the estimations. On the basis of the missing BW profile in French Large White pigs (male pigs weighed weekly, females and castrated males weighed monthly), we compared 2 different ways of predicting missing BW, 1 using a Gompertz model and 1 using a linear interpolation...
January 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28169331/nanosecond-time-resolved-characterization-of-a-pentacene-based-room-temperature-maser
#16
Enrico Salvadori, Jonathan D Breeze, Ke-Jie Tan, Juna Sathian, Benjamin Richards, Mei Wai Fung, Gary Wolfowicz, Mark Oxborrow, Neil McN Alford, Christopher W M Kay
The performance of a room temperature, zero-field MASER operating at 1.45 GHz has been examined. Nanosecond laser pulses, which are essentially instantaneous on the timescale of the spin dynamics, allow the visible-to-microwave conversion efficiency and temporal response of the MASER to be measured as a function of excitation energy. It is observed that the timing and amplitude of the MASER output pulse are correlated with the laser excitation energy: at higher laser energy, the microwave pulses have larger amplitude and appear after shorter delay than those recorded at lower laser energy...
February 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28169327/polarization-conversion-in-cubic-raman-crystals
#17
Aaron McKay, Alexander Sabella, Richard P Mildren
Nonlinear conversion of unpolarized beams to lower frequencies is generally inefficient in c((2)) materials, as it is challenging to achieve phase-matching for input ordinary and extraordinary beams simultaneously in the normal dispersion regime. Here, we show that cubic Raman crystals having doubly and triply degenerate (E and F type) modes provide a method for efficient nonlinear frequency downconversion of an unpolarized beam and yield a linearly polarized output state. Using Mueller calculus, optimal crystal directions for such polarization conversion are determined...
February 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28168550/validation-of-gc-irms-techniques-for-%C3%AE-13-c-and-%C3%AE-2-h-csia-of-organophosphorus-compounds-and-their-potential-for-studying-the-mode-of-hydrolysis-in-the-environment
#18
Langping Wu, Steffen Kümmel, Hans H Richnow
Compound-specific stable isotope analysis (CSIA) is among the most promising tools for studying the fate of organic pollutants in the environment. However, the feasibility of multidimensional CSIA was limited by the availability of a robust method for precise isotope analysis of heteroatom-bearing organic compounds. We developed a method for δ (13)C and δ (2)H analysis of eight organophosphorus compounds (OPs) with different chemical properties. In particular, we aimed to compare high-temperature conversion (HTC) and chromium-based HTC (Cr/HTC) units to explore the limitations of hydrogen isotope analysis of heteroatom-bearing compounds...
February 6, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28168021/refuge-or-predation-risk-alternate-ways-to-perceive-hiker-disturbance-based-on-maternal-state-of-female-caribou
#19
Frédéric Lesmerises, Chris J Johnson, Martin-Hugues St-Laurent
Human presence in natural environments is often a source of stress that is perceived by large ungulates as an increased risk of predation. Alternatively, disturbance induced by hikers creates a relatively predator-free space that may serve as a refuge. We measured the behavioral responses of female caribou to disturbance associated with the presence of hikers during summer in the Gaspésie National Park. We used those data to determine whether caribou responded negatively to human activity (i.e., the predation risk hypothesis) or whether human activity resulted in a decrease in the magnitude of perceived risk (i...
February 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28167445/neutron-dose-in-and-out-of-18mv-photon-fields
#20
A O Ezzati, M T Studenski
In radiation therapy, neutron contamination is an undesirable side effect of using high energy photons to treat patients. Neutron contamination requires adjustments to the shielding requirements of the linear accelerator vault and contributes to the risk of secondary malignancies in patients by delivering dose outside of the primary treatment field. Using MCNPX, an established Monte Carlo code, manufacturer blueprints, and the most up to date ICRP neutron dose conversion factors, the neutron spectra, neutron/photon dose ratio, and the neutron capture gamma ray dose were calculated at different depths and off axis distances in a tissue equivalent phantom...
February 1, 2017: Applied Radiation and Isotopes
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