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https://www.readbyqxmd.com/read/28645167/-it-s-important-but%C3%A2-perceived-barriers-and-situational-dependencies-to-social-contact-preferences-of-nursing-home-residents
#1
Katherine M Abbott, Lauren R Bangerter, Sarah Humes, Rachel Klumpp, Kimberly Van Haitsma
Background and Objectives: U.S. Nursing homes (NH) are shifting toward a person-centered philosophy of care, where staff understand each residents preferences, goals and values, and seek to honor them throughout the care delivery process. Social interactions are a major component of life and while low rates of social interactions are typically found among NH residents, little research has examined resident preferences for specific types of social interactions. The purpose of this study is to explore, from the perspective of the NH resident, barriers to social contact preferences and situations when social preferences change...
June 22, 2017: Gerontologist
https://www.readbyqxmd.com/read/28644650/nature-of-the-spin-liquid-ground-state-in-a-breathing-kagome-compound-studied-by-nmr-and-series-expansion
#2
J-C Orain, B Bernu, P Mendels, L Clark, F H Aidoudi, P Lightfoot, R E Morris, F Bert
In the vanadium oxyfluoride compound (NH_{4})_{2}[C_{7}H_{14}N][V_{7}O_{6}F_{18}] (DQVOF), the V^{4+} (3d^{1}, S=1/2) ions realize a unique, highly frustrated breathing kagome lattice composed of alternately sized, corner-sharing equilateral triangles. Here we present an ^{17}O NMR study of DQVOF, which isolates the local susceptibility of the breathing kagome network. By a fit to series expansion, we extract the ratio of the interactions within the breathing kagome plane, J_{∇}/J_{Δ}=0.55(4), and the mean antiferromagnetic interaction J[over ¯]=60(7)  K...
June 9, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28642165/can-the-way-pigs-are-handled-alter-behavioural-and-physiological-measures-of-affective-state
#3
Ricard Carreras, Laura Arroyo, Eva Mainau, Daniel Valent, Anna Bassols, Antoni Dalmau, Luigi Faucitano, Xavier Manteca, Antonio Velarde
Research on human-animal relationship in animal production has been mainly focused on its effect on stress, productivity and meat quality. Only few studies have assessed its effects on the animals' affective state. In the present study, the influence of positive and negative handling (PH and NH, respectively) on affective state and fear as assessed by the cognitive bias test, the novel object test and the defence cascade test was studied in 56 pigs. Serum, saliva and hair were sampled during the study for the analysis of cortisol concentration...
June 19, 2017: Behavioural Processes
https://www.readbyqxmd.com/read/28641378/staff-perceptions-of-key-factors-guiding-nursing-home-search-and-selection-within-the-veterans-health-administration
#4
Edward Alan Miller, Stefanie Gidmark, Emily Gadbois, James L Rudolph, Orna Intrator
Background and Objectives: Veterans enter nursing homes (NHs) for short-term postacute, rehabilitation, respite, or end-of-life care. They also enter NHs on a long-term basis due to frailty, disability, functional deficits, and cognitive impairment. Little is known about how a particular NH is chosen once the decision to enter a NH has been made. This study identified VA staff perceptions of the key factors influencing the search and selection of NHs within the Veterans Health Administration (VHA)...
June 21, 2017: Gerontologist
https://www.readbyqxmd.com/read/28641237/tunable-excited-state-intramolecular-proton-transfer-reactions-with-nh-or-oh-as-a-proton-donor-a-theoretical-investigation
#5
Yuanyuan Li, Keke Wen, Songyan Feng, Huijuan Yuan, Beibei An, Qiuling Zhu, Xugeng Guo, Jinglai Zhang
Excited-state intramolecular proton transfer (ESIPT) reactions occurring in the S1 state for five molecules, which possess five/six-membered ring intramolecular NH···N or OH···N hydrogen bonds bearing quinoline or 2-phenylpyridine moiety, have been described in detail by the time-dependent density functional theory (TD-DFT) approach using the B3LYP hybrid functional. For the five molecules, the constrained potential energy profiles along the ESIPT reactions show that proton transfer is barrierless in molecules possessing six-membered ring intramolecular H-bonds, which is smoother than that with certain barriers in five-membered ring H-bonding systems...
June 15, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28640186/analysis-of-serotonin-molecules-on-silver-nanocolloids-a-raman-computational-and-experimental-study
#6
Felicia S Manciu, John D Ciubuc, Emma M Sundin, Chao Qiu, Kevin E Bennet
Combined theoretical and experimental analysis of serotonin by quantum chemical density functional calculations and surface-enhanced Raman spectroscopy, respectively, is presented in this work to better understand phenomena related to this neurotransmitter's detection and monitoring at very low concentrations specific to physiological levels. In addition to the successful ultrasensitive analyte detection on silver nanoparticles for concentrations as low as 10(-11) molar, the relatively good agreement between the simulated and experimentally determined results indicates the presence of all serotonin molecular forms, such as neutral, ionic, and those oxidized through redox reactions...
June 22, 2017: Sensors
https://www.readbyqxmd.com/read/28638658/different-intra-and-inter-molecular-hydrogen-bonding-patterns-in-3s-4as-8as-2-2r-3s-3-2-5-x2-benzamido-2-2-5-x2-benzo-yloxy-4-phenyl-butyl-n-tert-butyldeca-hydro-iso-quinoline-3-carboxamides-x-h-or-cl-compounds-with-moderate-aspartyl-protease-inhibition-activity
#7
Wilson Cunico, Maria de Lourdes G Ferreira, James L Wardell, William T A Harrison
The crystal structures of (3S,4aS,8aS)-2-[(2R,3S)-3-benzamido-2-benzo-yloxy-4-phenyl-but-yl]-N-tert-butyldeca-hydro-iso-quinoline-3-carboxamide, C38H47N3O4, (I), and (3S,4aS,8aS)-2-[(2R,3S)-3-(2,5-di-chloro-benzamido)-2-(2,5-di-chloro-benzo-yloxy)-4-phenyl-but-yl]-N-tert-butyldeca-hydro-iso-quinoline-3-carboxamide, C38H43Cl4N3O4, (II), are described. Despite their chemical similarity, they adopt different conformations in the solid state: (I) features a bifurcated intra-molecular N-H⋯(N,O) hydrogen bond from the tert-butylamide NH group to the piperidine N atom and the benzoate O atom, whereas (II) has an intra-molecular N-H⋯O link from the benzamide NH group to the tert-butyl-amide O atom...
June 1, 2017: Acta Crystallographica. Section E, Crystallographic Communications
https://www.readbyqxmd.com/read/28637215/managerial-ownership-in-nursing-homes-staffing-quality-and-financial-performance
#8
Sean Shenghsiu Huang, John R Bowblis
Purpose of the Study: Ownership of nursing homes (NHs) has primarily focused broadly on differences between for-profit (FP), nonprofit (NFP), and government-operated facilities. Yet, among FPs, the understanding of detailed ownership structures at individual NHs is rather limited. Particularly, NH administrators may hold significant equity interests in their facilities, leading to heterogeneous financial incentives and NH outcomes. Through the principal-agent theory, this article studies how managerial ownership of individual facilities affects NH outcomes...
June 20, 2017: Gerontologist
https://www.readbyqxmd.com/read/28636680/unifying-the-microscopic-picture-of-his-containing-turns-from-gas-phase-model-peptides-to-crystallized-proteins
#9
Woon Yong Sohn, Sana Habka, Eric Gloaguen, Michel Mons
The presence in crystallized proteins of a local anchoring between the side chain of a His residue, located in the central position of a γ- or β-turn, and its local main chain environment, was assessed by the comparison of protein structures with relevant isolated model peptides. Gas phase laser spectroscopy, combined with relevant quantum chemistry methods, was used to characterize the γ- and β-turn structures in these model peptides. A conformer-selective NH stretch infrared study provided evidence for the formation in vacuo of two types of short-range H-bonded motifs, labelled ε-6(δ) and δ-(δ)7/π(H), bridging the His side chain (in its gauche+ rotamer) to the neighbouring NH(i) and CO(i) sites of the backbone; each side chain-backbone motif was found to be specific of the tautomer (ε or δ) adopted by the His side chain in its neutral form...
June 21, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28636377/enthalpies-of-formation-of-hydrazine-and-its-derivatives
#10
Olga V Dorofeeva, Oxana N Ryzhova, Taisiya A Suchkova
Enthalpies of formation, ∆_f H_298^°, both in the gas and condensed phase, and enthalpies of sublimation or vaporization have been estimated for hydrazine, NH2NH2, and its 36 various derivatives using quantum chemical calculations. The composite G4 method has been used along with isodesmic reaction schemes to derive a set of self-consistent high accuracy gas-phase enthalpies of formation. To estimate the enthalpies of sublimation and vaporization with reasonable accuracy (5-20 kJ/mol), the method of molecular electrostatic potential (MEP) has been used...
June 21, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/28636060/developing-mobile-clinical-decision-support-for-nursing-home-staff-assessment-of-urinary-tract-infection-using-goal-directed-design
#11
Wallace Jones, Cynthia Drake, David Mack, Blaine Reeder, Barbara Trautner, Heidi Wald
BACKGROUND: Unique characteristics of nursing homes (NHs) contribute to high rates of inappropriate antibiotic use for asymptomatic bacteriuria (ASB), a benign condition. A mobile clinical decision support system (CDSS) may support NH staff in differentiating urinary tract infections (UTI) from ASB and reducing antibiotic days. OBJECTIVES: We used Goal-Directed Design to: 1) Characterize information needs for UTI identification and management in NHs; 2) Develop UTI Decide, a mobile CDSS prototype informed by personas and scenarios of use constructed from Aim 1 findings; 3) Evaluate the UTI Decide prototype with NH staff...
June 20, 2017: Applied Clinical Informatics
https://www.readbyqxmd.com/read/28635507/cochlear-implant-effectiveness-in-postlingual-single-sided-deaf-individuals-what-s-the-point
#12
Mareike Finke, Hanna Bönitz, Björn Lyxell, Angelika Illg
OBJECTIVES: By extending the indication criteria for cochlear implants (CI), the population of CI candidates increased in age, as well as range and type of hearing loss. This qualitative study identified factors that contributed to seek CI treatment in single-sided deaf individuals and gained insights how single-sided deafness (SSD) and hearing with a CI affect their lives. DESIGN: An open-ended questionnaire and a standardised inventory (IOI-HA) were used. Qualitative data reflecting the reasons to seek CI treatment and the individual experiences after CI switch-on were collected...
March 5, 2017: International Journal of Audiology
https://www.readbyqxmd.com/read/28635275/infrared-determination-of-the-protonation-state-of-a-key-histidine-residue-in-the-photosynthetic-water-oxidizing-center
#13
Shin Nakamura, Takumi Noguchi
Photosynthetic water oxidation is performed at the Mn4CaO5 cluster in photosystem II (PSII). The protonation structures of amino acid residues and water molecules around the Mn4CaO5 cluster are crucial in water oxidation reactions. In this study, we determined the protonation state of a key His residue in water oxidation, D1-H337, which is directly hydrogen bonded with the oxygen atom of the Mn4CaO5 cluster, using polarized attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy. Flash-induced polarized ATR-FTIR difference spectra upon the S1→S2 transition of oriented PSII membranes showed broad negative and positive features around 2600 and 2900 cm-1, respectively, with large dichroic ratios, accompanied with several minor peaks attributable to the Fermi resonance of a His NH vibration...
June 21, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28632743/in-silico-assessment-of-the-effects-of-quinidine-disopyramide-and-e-4031-on-short-qt-syndrome-variant-1-in-the-human-ventricles
#14
Cunjin Luo, Kuanquan Wang, Henggui Zhang
AIMS: Short QT syndrome (SQTS) is an inherited disorder associated with abnormally abbreviated QT intervals and an increased incidence of atrial and ventricular arrhythmias. SQT1 variant (linked to the rapid delayed rectifier potassium channel current, IKr) of SQTS, results from an inactivation-attenuated, gain-of-function mutation (N588K) in the KCNH2-encoded potassium channels. Pro-arrhythmogenic effects of SQT1 have been well characterized, but less is known about the possible pharmacological antiarrhythmic treatment of SQT1...
2017: PloS One
https://www.readbyqxmd.com/read/28632388/accelerating-dynamics-of-h-on-graphene-by-coadsorbates
#15
Manh-Thuong Nguyen, Phong Nam Pham
There are several factors that affect the dynamics of adsorbed hydrogen atoms on a carbon surface, here, using density-functional calculations we show that coadsorption can be a highly influential factor. The diffusion of hydrogen adsorbed on graphene is explored in the presence of H-containing molecules. Without coadsorbates the diffusion barrier of H on graphene is 0.94 eV while with water/ammonia it is 0.85/0.12 eV. The low barrier in the case of ammonia is attributed to the formation of a stable intermediate state NH$_4$ while such a stable state is not found in the case of water...
June 20, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/28632254/osteogenic-potential-of-gingival-mesenchymal-stem-cells-over-titanium-machined-surfaces
#16
Julio A Carrion, Junaid Rajani, Mohamed Al Bahrawy, Xiaojun Chan, Tae Jin Kim, Srinivas Myneni, Vincent J Iacono
PURPOSE: To evaluate the biochemical composition of bone nodules deposited by gingival mesenchymal stem cells (GMSCs) over titanium machined surfaces in vitro. MATERIALS AND METHODS: GMSCs were isolated from healthy gingival tissues of patients undergoing crown-lengthening surgical procedures. GMSCs were characterized following the International Society for Cellular Therapy guidelines. After incubation of the GMSCs with titanium discs, osteogenic differentiation was induced for 28 days...
June 20, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28632169/the-novel-mechanisms-concerning-the-inhibitions-of-palmitate-induced-proinflammatory-factor-releases-and-endogenous-cellular-stress-with-astaxanthin-on-min6-%C3%AE-cells
#17
Atsuko Kitahara, Kazuto Takahashi, Naru Morita, Toshitaka Murashima, Hirohisa Onuma, Yoshikazu Sumitani, Toshiaki Tanaka, Takuma Kondo, Toshio Hosaka, Hitoshi Ishida
Astaxanthin, an antioxidant agent, can protect pancreatic β-cells of db/db mice from glucotoxicity and resolve chronic inflammation in adipose tissue. Nonetheless, the effects of astaxanthin on free-fatty-acid-induced inflammation and cellular stress in β-cells remain to be demonstrated. Meanwhile, palmitate enhances the secretion of pro-inflammatory adipokines monocyte chemoattractant protein-1 (MCP-1) and VEGF120 (vascular endothelial growth factor). We therefore investigated the influence of astaxanthin on palmitate-stimulated MCP-1 and VEGF120 secretion in mouse insulinoma (MIN6) pancreatic β-cells...
June 20, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28630285/efficient-transport-of-tropospheric-aerosol-into-the-stratosphere-via-the-asian-summer-monsoon-anticyclone
#18
Pengfei Yu, Karen H Rosenlof, Shang Liu, Hagen Telg, Troy D Thornberry, Andrew W Rollins, Robert W Portmann, Zhixuan Bai, Eric A Ray, Yunjun Duan, Laura L Pan, Owen B Toon, Jianchun Bian, Ru-Shan Gao
An enhanced aerosol layer near the tropopause over Asia during the June-September period of the Asian summer monsoon (ASM) was recently identified using satellite observations. Its sources and climate impact are presently not well-characterized. To improve understanding of this phenomenon, we made in situ aerosol measurements during summer 2015 from Kunming, China, then followed with a modeling study to assess the global significance. The in situ measurements revealed a robust enhancement in aerosol concentration that extended up to 2 km above the tropopause...
June 19, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28629860/hydrogen-deuterium-exchange-kinetics-in-%C3%AE-lactoglobulin-epicatechin-complexes-studied-by-ftir-spectroscopy
#19
Francesca Caporaletti, Marina Carbonaro, Paola Maselli, Alessandro Nucara
Hydrogen-Deuterium exchange kinetics of of β-lactoglobulin and β-lactoglobulin (-)-epicatechin solutions has been investigated through the analysis of the amide I absorption band at 1650cm(-1) in the FTIR spectrum. H-D substitution in NH amides and residues of the protein results in a slight red-shift and in intensity changes of the amide I components: either these effects have been inspected in the framework of the Principal Components Analysis methods. The present analysis allowed to unveil three H-D kinetics at the timescale of the oligomeric fluctuations of the protein...
June 16, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28628182/prodigiosenes-conjugated-to-tamoxifen-and-estradiol
#20
Estelle Marchal, Carlotta Figliola, Alison Thompson
We report the synthesis of the first click-appended prodigiosene conjugates. Four prodigiosene conjugates of estradiol functionalised at the 7α-position were prepared, as were three prodigiosene conjugates of tamoxifen. The coupling between a prodigiosene and an 11-hydroxy estradiol derivative via an ether linkage was investigated, as was the 11- and 7-functionalisation of the estradiol core. The robustness of estradiol protecting groups was severely challenged by reactions typically used to equip such frameworks for 11- and 7-functionalisation...
June 19, 2017: Organic & Biomolecular Chemistry
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