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https://www.readbyqxmd.com/read/29149796/effectiveness-of-treatment-in-wards-for-patients-with-dementia-and-issues-associated-with-this-treatment-a-prospective-analysis
#1
Shogo Taniguchi, Teruyuki Matsuoka, Takeshi Hikawa, Atsushi Machihara, Keisuke Shibata, Hideki Miki, Hiroshi Shimizu, Jin Narumoto
In order to optimize the treatment in wards for patients with dementia, we investigated predictors of the length of stay in the ward for patients with dementia. A prospective analysis of 72 patients with dementia was conducted in two wards for patients with dementia. Severity of dementia was assessed by the Clinical Dementia Rating, basic activities of daily living were evaluated using the Physical Self-Maintenance Scale, and severity of behavioral and psychological symptoms of dementia and caregiver distress were determined with the Nursing Home version of the Neuropsychiatric Inventory...
January 1, 2017: Dementia
https://www.readbyqxmd.com/read/29149775/lentiviral-vectors-and-adeno-associated-virus-vectors-useful-tools-for-gene-transfer-in-pain-research
#2
REVIEW
Zheng Chen-Xi, Wang Sheng-Ming, Bai Yun-Hu, Luo Ting-Ting, Wang Jia-Qi, Dai Chun-Qiu, Guo Bao-Lin, Luo Shi-Cheng, Wang Dong-Hui, Yang Yan-Ling, Wang Ya-Yun
Pain, especially chronic pain, has always been a heated point in both basic and clinical researches since it puts heavy burdens on both individuals and the whole society. A better understanding of the role of biological molecules and various ionic channels involved in pain can shed light on the mechanism under pain and advocate the development of pain management. Using viral vectors to transfer specific genes at targeted sites is a promising method for both research and clinical applications. Lentiviral vectors and adeno-associated virus (AAV) vectors which allow stable and long-term expression of transgene in non-dividing cells are widely applied in pain research...
November 17, 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/29149748/in-situ-long-term-modeling-of-phenanthrene-dynamics-in-an-aged-contaminated-soil-using-the-vsoil-platform
#3
Khaled Brimo, Patricia Garnier, François Lafolie, Geoffroy Séré, Stéphanie Ouvrard
Management and remediation actions of polycyclic aromatic hydrocarbons (PAH) contaminated sites require an accurate knowledge of the dynamics of these chemicals in situ under real conditions. Here we developed, under the Virtual Soil Platform, a global model for PAH that describes the principal physical and biological processes controlling the dynamics of PAH in soil under real climatic conditions. The model was applied first to simulate the observed dynamics of phenanthrene in situ field experimental plots of industrial contaminated soil...
November 14, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29149736/graphene-oxide-reinforced-ionic-liquid-functionalized-adsorbent-for-solid-phase-extraction-of-phenolic-acids
#4
Xiudan Hou, Xiaofeng Lu, Sheng Tang, Licheng Wang, Yong Guo
An environmental friendly sorbent of polymeric ionic liquids modified graphene oxide-grafted silica (PILs@GO@Sil) was synthesized for solid-phase extraction (SPE) of phenolic acids. The sorbent was prepared via a chemical layer-to-layer fabrication including amidation reaction, surface radical chain-transfer polymerization and in situ anion exchange. After modification with PILs, the silica surface had higher positive potential so that it would exhibit stronger electrostatic interaction for acidic compounds compared with GO@Sil...
November 12, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/29149722/effects-of-middle-ear-quasi-static-stiffness-on-sound-transmission-quantified-by-a-novel-3-axis-optical-force-sensor
#5
Ivo Dobrev, Jae Hoon Sim, Baktash Aqtashi, Alexander M Huber, Thomas Linder, Christof Röösli
BACKGROUND: Intra-operative quantification of the ossicle mobility could provide valuable feedback for the current status of the patient's conductive hearing. However, current methods for evaluation of middle ear mobility are mostly limited to the surgeon's subjective impression through manual palpation of the ossicles. This study investigates how middle ear transfer function is affected by stapes quasi-static stiffness of the ossicular chain. The stiffness of the middle ear is induced by a) using a novel fiber-optic 3-axis force sensor to quantify the quasi-static stiffness of the middle ear, and b) by artificial reduction of stapes mobility due to drying of the middle ear...
November 10, 2017: Hearing Research
https://www.readbyqxmd.com/read/29149694/a-high-brightness-probe-of-polymer-nanoparticles-for-biological-imaging
#6
Sirong Zhou, Jiarong Zhu, Yaping Li, Liheng Feng
Conjugated polymer nanoparticles (CPNs) with high brightness in long wavelength region were prepared by the nano-precipitation method. Based on fluorescence resonance energy transfer (FRET) mechanism, the high brightness property of the CPNs was realized by four different emission polymers. Dynamic light scattering (DLS) and scanning electron microscopy (SEM) displayed that the CPNs possessed a spherical structure and an average diameter of ~75nm. Analysis assays showed that the CPNs had excellent biocompatibility, good photostability and low cytotoxicity...
November 11, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/29149664/copper-phospholipid-interaction-at-cell-membrane-model-hydrophobic-surfaces
#7
Marina Mlakar, Vlado Cuculić, Sanja Frka, Blaženka Gašparović
Detailed investigation of Cu (II) binding with natural lipid phosphatidylglycerol (PG) in aqueous solution was carried out by voltammetric measurements at the mercury drop electrode, complemented by monolayer studies in a Langmuir trough and electrophoretic measurements, all used as models for hydrophobic cell membranes. Penetration of copper ions into the PG layer was facilitated by the formation of hydrophilic Cu-Phenanthroline (Phen) complex in the subphase, followed by the mixed ligand Cu-Phen-PG complex formation at the hydrophobic interface...
November 11, 2017: Bioelectrochemistry
https://www.readbyqxmd.com/read/29149602/specification-of-physiologic-and-disease-states-by-distinct-proteins-and-protein-conformations
#8
REVIEW
Daniel F Jarosz, Vikram Khurana
Protein conformational states-from intrinsically disordered ensembles to amyloids that underlie the self-templating, infectious properties of prion-like proteins-have attracted much attention. Here, we highlight the diversity, including differences in biophysical properties, that drive distinct biological functions and pathologies among self-templating proteins. Advances in chemical genomics, gene editing, and model systems now permit deconstruction of the complex interplay between these protein states and the host factors that react to them...
November 16, 2017: Cell
https://www.readbyqxmd.com/read/29149569/blue-thermally-activated-delayed-fluorescence-polymers-with-nonconjugated-backbone-and-through-space-charge-transfer-effect
#9
Shiyang Shao, Jun Hu, Xingdong Wang, Lixiang Wang, Xiabin Jing, Fosong Wang
We demonstrate a novel molecular design concept for thermally activated delayed fluorescence (TADF) polymers based on a nonconjugated polyethylene backbone with through-space charge transfer effect between pendant electron donor (D) and electron acceptor (A) units. Different from conventional conjugated D-A polymers with through-bond charge transfer effect, the nonconjugated architecture avoids the direct conjugation between D and A units, enabling us to realize blue emission. Meanwhile, the spatial π-π interaction between the physically separated D and A units results in both small singlet-triplet energy splitting (0...
November 17, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/29149558/quantification-of-humic-substances-in-natural-water-using-nitrogen-doped-carbon-dots
#10
Yan-Fang Guan, Bao-Cheng Huang, Chen Qian, Han-Qing Yu
Dissolved organic matter (DOM) is ubiquitous in aqueous environments and plays a significant role in pollutant mitigation, transformation and organic geochemical circulation. DOM is also capable of forming carcinogenic by-products in the disinfection treatment processes of drinking water. Thus, efficient methods for DOM quantification are highly desired. In this work, a novel sensor for rapid and selective detection of humic substances (HS), a key component of DOM, based on fluorescence quenching of nitrogen-doped carbon quantum dots was developed...
November 17, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/29149468/pneumoparotitis-as-a-complication-of-long-term-oronasal-positive-airway-pressure-for-sleep-apnea
#11
Andrew J Goates, Daniel J Lee, Joan E Maley, Phillip C Lee, Henry T Hoffman
BACKGROUND: Parotid swelling is rarely caused by pneumoparotitis from retrograde insufflation of air into Stensen's duct. Previous reports have identified occupational exposures, self-induced habits, exercise, spirometry, and short-term positive pressure airway ventilation as causes of salivary duct insufflation. METHODS: We present 2 cases of pneumoparotitis in patients on long-term oronasal continuous positive airway pressure (CPAP) for obstructive sleep apnea...
November 17, 2017: Head & Neck
https://www.readbyqxmd.com/read/29149466/microsecond-timescale-protein-dynamics-a-combined-solid-state-nmr-approach
#12
Petra Rovó, Rasmus Linser
Conformational exchange in proteins is a major determinant in protein functionality. In particular, the μs-ms timescale is associated with enzymatic activity and interactions between biological molecules. We show here that a comprehensive data set of R1ρ relaxation dispersion profiles employing multiple effective fields and tilt angles can be easily obtained in perdeuterated, partly back-exchanged proteins at fast magic-angle spinning and further complemented with chemical-exchange saturation transfer NMR experiments...
November 17, 2017: Chemphyschem: a European Journal of Chemical Physics and Physical Chemistry
https://www.readbyqxmd.com/read/29149445/the-influences-of-separators-on-capacitive-deionization-systems-in-the-cycle-of-adsorption-and-desorption
#13
Qihan Yao, Zhou Shi, Qingqing Liu, Zhengyang Gu, Ruihuan Ning
This research focused on the influence of different separator compartments on the performance of capacitive deionization (CDI) cells in terms of brackish water treatment. For comparison, different separators including filter paper(FP), carbon nanotube (CNT), and stainless steel fiber (SSF) on deionization and desorption rate of salt were examined. The best performance was obtained when the CNT separator was packed, followed by SSF and FP. Reducing the cell voltage from 1.2 to 0.4 V decreased the salt removal and electrode regeneration rate of SSF-CDI...
November 17, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29149242/long-term-carriage-of-extended-spectrum-%C3%AE-lactamase-producing-escherichia-coli-and-klebsiella-pneumoniae-in-the-general-population-in-the-netherlands
#14
Engeline van Duijkeren, Cornelia C H Wielders, Cindy M Dierikx, Angela H A M van Hoek, Paul Hengeveld, Christiaan Veenman, Alice Florijn, Aniek Lotterman, Lidwien A M Smit, Jaap T van Dissel, Catharina B M Maassen, Sabine C de Greeff
Background: This longitudinal study aimed to investigate (risk factors for) persistence of carriage and molecular characteristics of extended-spectrum and pAmpC β-lactamase-producing (ESBL/pAmpC) Escherichia coli and Klebsiella pneumoniae (ESBL-E/K) in adults in the Dutch community. Methods: Following a cross-sectional study (ESBL-E/K prevalence 4.5%), a subset of ESBL-E/K positive (n=76) and negative (n=249) individuals volunteered to provide five monthly faecal samples and questionnaires...
November 15, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29149235/isolated-complexes-of-the-amino-acid-arginine-with-polyether-and-polyamine-macrocycles-the-role-of-proton-transfer
#15
Juan Ramón Avilés-Moreno, Giel Berden, Jos Oomens, Bruno Martínez-Haya
The distinct basicity of the guanidinium side-group of arginine (Arg) sustains specific interactions involved in essential biochemical processes. The sensing of arginine is therefore key in modern biotechnology and bioanalysis. In this context, the development of molecular receptors based on crown ether building blocks has demonstrated great potential. We investigate the complexes formed by arginine with two benchmark macrocycles, 12-crown-4 (1,4,7,10-tetraoxacyclododecane) and its N-substituted analog cyclen (1,4,7,10-tetraazacyclododecane)...
November 17, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/29149233/lighting-up-long-range-charge-transfer-states-by-a-localized-plasmonic-field
#16
Zhen Xie, Sai Duan, Chuan-Kui Wang, Yi Luo
The long-range charge-transfer states in a donor-acceptor system exhibit well separated electron-hole pairs, but are often difficult to achieve by optical means owing to a very small overlap between the wave functions of the donor and acceptor. We have found that the introduction of a spatially confined plasmon can enhance the transition probability to the long-range charge-transfer states as it can effectively break the intrinsic symmetry selection rule imposed on the system. Meanwhile, the intensity borrowed from local excitations could also be selectively promoted, allowing the manipulation of the excited quantum states...
November 17, 2017: Nanoscale
https://www.readbyqxmd.com/read/29149213/optimal-design-and-control-of-an-electromechanical-transfemoral-prosthesis-with-energy-regeneration
#17
Farbod Rohani, Hanz Richter, Antonie J van den Bogert
In this paper, we present the design of an electromechanical above-knee active prosthesis with energy storage and regeneration. The system consists of geared knee and ankle motors, parallel springs for each motor, an ultracapacitor, and controllable four-quadrant power converters. The goal is to maximize the performance of the system by finding optimal controls and design parameters. A model of the system dynamics was developed, and used to solve a combined trajectory and design optimization problem. The objectives of the optimization were to minimize tracking error relative to human joint motions, as well as energy use...
2017: PloS One
https://www.readbyqxmd.com/read/29149201/the-influence-of-filtering-and-downsampling-on-the-estimation-of-transfer-entropy
#18
Immo Weber, Esther Florin, Michael von Papen, Lars Timmermann
Transfer entropy (TE) provides a generalized and model-free framework to study Wiener-Granger causality between brain regions. Because of its nonparametric character, TE can infer directed information flow also from nonlinear systems. Despite its increasing number of applications in neuroscience, not much is known regarding the influence of common electrophysiological preprocessing on its estimation. We test the influence of filtering and downsampling on a recently proposed nearest neighborhood based TE estimator...
2017: PloS One
https://www.readbyqxmd.com/read/29149178/drivers-of-genetic-diversity-in-secondary-metabolic-gene-clusters-within-a-fungal-species
#19
Abigail L Lind, Jennifer H Wisecaver, Catarina Lameiras, Philipp Wiemann, Jonathan M Palmer, Nancy P Keller, Fernando Rodrigues, Gustavo H Goldman, Antonis Rokas
Filamentous fungi produce a diverse array of secondary metabolites (SMs) critical for defense, virulence, and communication. The metabolic pathways that produce SMs are found in contiguous gene clusters in fungal genomes, an atypical arrangement for metabolic pathways in other eukaryotes. Comparative studies of filamentous fungal species have shown that SM gene clusters are often either highly divergent or uniquely present in one or a handful of species, hampering efforts to determine the genetic basis and evolutionary drivers of SM gene cluster divergence...
November 17, 2017: PLoS Biology
https://www.readbyqxmd.com/read/29149114/-calls-due-to-suicidal-behaviour-made-to-the-prehospital-emergency-department-in-m%C3%A3-laga-characteristics-and-associated-factors
#20
M Jiménez-Hernández, S Castro-Zamudio, J Guzmán Parra, A I Martínez-García, C Guillén-Benítez, B Moreno-Küstner
BACKGROUND: Suicidal behaviour (fatal and non-fatal) has become a serious public health problem in many countries. The aim of the study was to describe the differential characteristics of emergency calls due to suicidal behaviour made to the Emergency Coordinating Centre (CCUE) in the province of Málaga, in comparison with calls due to physical or psychiatric problems. METHODS: Retrospective observational study of the calls recorded in the database of the Public Company for Emergency Health during one year...
November 17, 2017: Anales del Sistema Sanitario de Navarra
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