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https://www.readbyqxmd.com/read/28231594/-conception-and-preliminary-evaluation-of-a-rehabilitation-attending-counseling-service-for-caregivers-of-stroke-patients
#1
J Jungbauer, T Krieger, M Floren
This paper presents the pilot project "The Caregivers' Guide", which is financed by the German Federal Ministry of Education and Research (BMBF). The project's concept is outreach-oriented and personal, giving constant support to relatives of stroke patients throughout rehabilitation. Its effects were reviewed in an accompanying study. A combination of qualitative and quantitative methods was chosen to gather data on the experiences and assessments of the caregivers, as well as changes during the counselling process...
February 23, 2017: Die Rehabilitation
https://www.readbyqxmd.com/read/28231498/bone-specific-poly-ethylene-sodium-phosphate-bearing-biodegradable-nanoparticles
#2
Yuya Hirano, Yasuhiko Iwasaki
Chemotherapy is the most reliable treatment for osteoporosis and osseous metastases. To facilitate better drug delivery for bone treatments, a novel preparation of polymeric nanoparticles with high affinity to bone has been prepared. Two-step synthesis of cholesteryl-functionalized poly(ethylene sodium phosphate) (Ch-PEPn·Na) was performed via ring-opening polymerization of cyclic phosphoesters and the demethylation. The molecular weight of Ch-PEPn·Na could be well controlled by changing the ratio of cholesterol and cyclic phosphoesters...
February 16, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28230993/ground-state-properties-of-the-polar-alkali-metal-ytterbium-and-alkaline-earth-metal-ytterbium-molecules-a-comparative-study
#3
Qinqin Shao, Lijuan Deng, Xiao Dong Xing, Dezhi Gou, Xiaoyu Kuang, Hui Li
The accurate knowledge of electronic properties is important for creating and manufacturing ultracold molecules. We report here the ab initio quantum chemistry calculations on the properties of alkali-metal-ytterbium AM-Yb (AM = Li, Na, K, Rb, Cs) and alkaline-earth-metal-ytterbium AEM-Yb (AEM = Be, Mg, Ca, Sr, Ba) molecules for their electronic ground state. The potential energy curves (PECs) and permanent dipole moments (PDMs) are calculated based on the multi-reference configuration interaction (MRCI) level of theory, where the core-valence correlations and scalar relativistic effects are included...
February 23, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/28230867/ultrafast-electron-and-hole-transfer-dynamics-of-a-solar-cell-dye-containing-hole-acceptors-on-mesoporous-tio2-and-al2o3
#4
Mirko Scholz, Oliver Flender, Gerrit Boschloo, Kawon Oum, Thomas Lenzer
The stability of dye cations against recombination with conduction band electrons in mesoporous TiO2 electrodes is a key property for improving light harvesting in dye-sensitised solar cells. Using ultrafast transient broadband absorption spectroscopy, we monitor efficient intramolecular hole transfer in the solar cell dye E6 having two peripheral triarylamine acceptors. After photoexcitation, two hole transfer mechanisms are identified: a concerted mechanism for electron injection and hole transfer (2.4 ps) and a sequential mechanism with time constants of 3...
February 23, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28229229/management-of-unstable-distal-third-clavicle-fractures-clinical-and-radiological-outcomes-of-the-arthroscopy-assisted-conoid-ligament-reconstruction-and-fracture-cerclage-with-sutures
#5
Luis Natera Cisneros, Juan Sarasquete Reiriz
INTRODUCTION: Surgical treatment is indicated for the management of Neer type IIB fractures of the distal third of the clavicle. The aim of this study was to assess the clinical and radiological outcomes, in cases of unstable distal third clavicle fractures managed by means of an arthroscopy-assisted conoid ligament reconstruction and fracture cerclage with sutures. METHODS: Nine patients with unstable distal third clavicle fractures (Neer type IIB) managed arthroscopically by means of a conoid ligament reconstruction and fracture cerclage with sutures, between 2008 and 2012, were included...
February 22, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28229145/oxidation-potentials-of-phenols-and-anilines-correlation-analysis-of-electrochemical-and-theoretical-values
#6
Ania S Pavitt, Eric J Bylaska, Paul G Tratnyek
Phenols and anilines have been studied extensively as reductants of environmental oxidants (such as manganese dioxide) and as reductates (e.g., model contaminants) that are transformed by environmental oxidants (ozone, triple organic matter, etc.). The thermodynamics and kinetics of these reactions have been interpreted using oxidation potentials for substituted phenols and anilines, often using a legacy experimental dataset that is of uncertain quality. Although there are many alternative oxidation potential data, there has been little systematic analysis of the relevance, reliability, and consistency of the data obtained by different methods...
February 23, 2017: Environmental Science. Processes & Impacts
https://www.readbyqxmd.com/read/28228353/isochoric-and-isobaric-freezing-of-fish-muscle
#7
Gabriel Năstase, Chenang Lyu, Gideon Ukpai, Alexandru Șerban, Boris Rubinsky
We have recently shown that, a living organism, which succumbs to freezing to -4 °C in an isobaric thermodynamic system (constant atmospheric pressure), can survive freezing to -4 °C in an isochoric thermodynamic system (constant volume). It is known that the mechanism of cell damage in an isobaric system is the freezing caused increase in extracellular osmolality, and, the consequent cell dehydration. An explanation for the observed survival during isochoric freezing is the thermodynamic modeling supported hypothesis that, in the isochoric frozen solution the extracellular osmolality is comparable to the cell intracellular osmolality...
February 19, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28228296/morphometry-of-the-triangle-of-koch-and-position-of-the-coronary-sinus-opening-in-cadaveric-fetal-hearts
#8
Sharan Shanubhogue, Thuslima Mohamed, Nachiket Shankar
AIMS: The aim of the present study was to determine the variations in the position of the coronary sinus (CS) ostium in normal cadaveric fetal (28 weeks or more) hearts and to assess the impact that these variations had on the dimensions of the triangle of Koch (TK). METHODS: This cross-sectional analytical study was conducted on 28 fetal hearts. The dimensions and area of the TK were calculated by two methods, M1 (anatomical) and M2 (clinical). The position of the CS was defined with respect to the tendon of Todaro...
January 2017: Indian Heart Journal
https://www.readbyqxmd.com/read/28228027/ab-initio-state-specific-n2-o-dissociation-and-exchange-modeling-for-molecular-simulations
#9
Han Luo, Marat Kulakhmetov, Alina Alexeenko
Quasi-classical trajectory (QCT) calculations are used in this work to calculate state-specific N2(X(1)Σ)+O((3)P)→2N((4)S)+O((3)P) dissociation and N2(X(1)Σ)+O((3)P)→NO(X(2)Π)+N((4)S) exchange cross sections and rates based on the 1(3)A″ and 1(3)A' ab initio potential energy surface by Gamallo et al. [J. Chem. Phys. 119, 2545-2556 (2003)]. The calculations consider translational energies up to 23 eV and temperatures between 1000 K and 20 000 K. Vibrational favoring is observed for dissociation reaction at the whole range of collision energies and for exchange reaction around the dissociation limit...
February 21, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28226863/synaptic-depression-depends-on-charge-delivered-to-network
#10
Robert D Graham, Sharon Jose, Alex Kaiser, Nathalia Peixoto, Robert D Graham, Sharon Jose, Alex Kaiser, Nathalia Peixoto, Sharon Jose, Alex Kaiser, Robert D Graham, Nathalia Peixoto
In vitro neuronal networks cultured on microelectrode arrays enable the study of network electrophysiology on a fundamental level. Neuronal response to electrical stimulation is an area of interest at the laboratory bench and in the clinic, given its wide application for remedying neurological disorders. Here we investigated the change in cortical network response over time to varied amounts of charge used for stimulation, which may lead to a phenomenon known as selective adaptation. There is a charge threshold that invokes a reverberating network response; when stimulating at 900 mV, five stimulation electrodes were required to elicit a response across the entire network...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226787/exploring-the-possibilities-and-limitations-of-multitarget-ssvep-based-bci-applications
#11
Felix Gembler, Piotr Stawicki, Ivan Volosyak, Felix Gembler, Piotr Stawicki, Ivan Volosyak, Piotr Stawicki, Ivan Volosyak, Felix Gembler
Steady state visual evoked potentials (SSVEPs) are the brain signals induced by gazing at a constantly flickering target. Frame-based frequency approximation methods can be implemented in order to realize a high number of visual stimuli for SSVEP-based Brain-Computer Interfaces (BCIs) on ordinary computer screens. In this paper, we investigate the possibilities and limitations regarding the number of targets in SSVEP-based BCIs. The BCI-performance of seven healthy subjects was evaluated in an online experiment with six differently sized target matrices...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226051/discourses-on-short-coursetherapy-for-tuberculosis-control
#12
Fernando Mitano, Amélia Nunes Sicsú, Mônica Cristina Ribeiro Alexandre D Auria de Lima, Rarianne Carvalho Peruhype, Simone Terezinha Protti, Pedro Fredemir Palha
Objective: to analyze the meanings produced through the experiences and perceptions of healthcare professionals on the implementation of the strategy of directly observed treatment short course for tuberculosis control. Method: qualitative study carried out in Mozambique with 15 healthcare professionals. Inclusion criteriawerehaving acted in the Tuberculosis Control Program for more than one year, and exercising professional activity at the time of interview. A semi-structured script was used for data collection, and individual interviews were recorded...
January 2017: Revista Brasileira de Enfermagem
https://www.readbyqxmd.com/read/28225620/solvent-independent-anharmonicity-for-carbonyl-oscillators
#13
Samuel Hayes Schneider, Huong T Kratochvil, Martin T Zanni, Steven G Boxer
The physical origins of vibrational frequency shifts have been extensively studied in order to understand non-covalent intermolecular interactions in the condensed phase. In the case of carbonyls, vibrational solvatochromism, MD simulations, and vibrational Stark spectroscopy suggest that the frequency shifts observed in simple solvents arises predominately from the environment's electric field due to the vibrational Stark effect. This is contrary to many previously invoked descriptions of vibrational frequency shifts, such as bond polarization, whereby the bond's force constant and/or partial nuclear charges are altered due to the environment, often illustrated in terms of favored resonance structures...
February 22, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28225079/multiple-sodium-channel-isoforms-mediate-the-pathological-effects-of-pacific-ciguatoxin-1
#14
Marco C Inserra, Mathilde R Israel, Ashlee Caldwell, Joel Castro, Jennifer R Deuis, Andrea M Harrington, Angelo Keramidas, Sonia Garcia-Caraballo, Jessica Maddern, Andelain Erickson, Luke Grundy, Grigori Y Rychkov, Katharina Zimmermann, Richard J Lewis, Stuart M Brierley, Irina Vetter
Human intoxication with the seafood poison ciguatoxin, a dinoflagellate polyether that activates voltage-gated sodium channels (NaV), causes ciguatera, a disease characterised by gastrointestinal and neurological disturbances. We assessed the activity of the most potent congener, Pacific ciguatoxin-1 (P-CTX-1), on NaV1.1-1.9 using imaging and electrophysiological approaches. Although P-CTX-1 is essentially a non-selective NaV toxin and shifted the voltage-dependence of activation to more hyperpolarising potentials at all NaV subtypes, an increase in the inactivation time constant was observed only at NaV1...
February 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28224261/determination-of-glucose-exchange-rates-and-permeability-of-erythrocyte-membrane-in-preeclampsia-and-subsequent-oxidative-stress-related-protein-damage-using-dynamic-19-f-nmr
#15
Elizabeth Dickinson, John R P Arnold, Julie Fisher
The cause of the pregnancy condition preeclampsia (PE) is thought to be endothelial dysfunction caused by oxidative stress. As abnormal glucose tolerance has also been associated with PE, we use a fluorinated-mimic of this metabolite to establish whether any oxidative damage to lipids and proteins in the erythrocyte membrane has increased cell membrane permeability. Data were acquired using (19)F Dynamic-NMR (DNMR) to measure exchange of 3-fluoro-3-deoxyglucose (3-FDG) across the membrane of erythrocytes from 10 pregnant women (5 healthy control women, and 5 from women suffering from PE)...
February 21, 2017: Journal of Biomolecular NMR
https://www.readbyqxmd.com/read/28224158/chaotic-variations-of-electrical-conductance-in-powdered-pd-correlating-with-oscillatory-sorption-of-d2
#16
E Lalik, G Mordarski, R P Socha, A Drelinkiewicz
A microcalorimetric method has been combined with a potentiostatic method to measure simultaneously the rate of heat evolution and the electrical current in a powdered sample of palladium during thermokinetic oscillations accompanying the sorption of deuterium in the metal. Deterministic chaos has been confirmed in the temporal variations in current (of ca. 1-4 mA) on the onset of both the sorption and the desorption of deuterium from Pd. It has been found that the first derivative of the current in time, dI/dt, turns out to be correlated precisely with the periodicity of thermokinetic oscillations...
February 22, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28223171/how-tumour-induced-vascular-changes-alter-angiogenesis-insights-from-a-computational-model
#17
A Stéphanou, A C Lesart, J Deverchère, A Juhem, A Popov, F Estève
A computational model was developed to describe experimentally observed vascular changes induced by the introduction of a tumour on a mouse equipped with a dorsal skinfold chamber. The vascular structure of the host tissue was segmented from in vivo images and transposed into the computational framework. Simulations of tumour-induced vascular changes were performed and include the destabilizing effects of the growth factor VEGF on the integrity of the vessels walls. The integration of those effects, that include alteration of the vessel wall elasticity and wall breaching, were required to realistically reproduce the experimental observations...
February 20, 2017: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/28223164/exploring-sensitivity-throughput-of-a-parallel-flow-spri-biosensor-for-characterization-of-antibody-antigen-interaction
#18
Vishal Kamat, Ashique Rafique
Rapid growth in the field of biotherapeutics has led to an increased demand for high-throughput, label-free biosensors exhibiting high sensitivity. To support the current needs, Sierra Sensors introduced a surface plasmon resonance imaging (SPRi) based biosensor, Molecular Affinity Screening System (MASS-1). We assessed the potential utility of MASS-1 to support Regeneron's therapeutic antibody discovery. A large panel of antibody-antigen interactions was characterized using MASS-1 and the kinetic data were compared with the Biacore 4000 biosensor...
February 18, 2017: Analytical Biochemistry
https://www.readbyqxmd.com/read/28222391/a-clinically-applicable-non-invasive-method-to-quantitatively-assess-the-visco-hyperelastic-properties-of-human-heel-pad-implications-for-assessing-the-risk-of-mechanical-trauma
#19
Sara Behforootan, Panagiotis E Chatzistergos, Nachiappan Chockalingam, Roozbeh Naemi
INTRODUCTION: Pathological conditions such as diabetic foot and plantar heel pain are associated with changes in the mechanical properties of plantar soft tissue. However, the causes and implications of these changes are not yet fully understood. This is mainly because accurate assessment of the mechanical properties of plantar soft tissue in the clinic remains extremely challenging. PURPOSE: To develop a clinically viable non-invasive method of assessing the mechanical properties of the heel pad...
February 9, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28222373/phytochelatins-play-key-roles-for-the-difference-in-root-arsenic-accumulation-of-different-triticum-aestivum-cultivars-in-comparison-with-arsenate-uptake-kinetics-and-reduction
#20
Gao Ling Shi, Lai Qing Lou, Dao Jun Li, Zhu Bing Hu, Qing Sheng Cai
In the previous studies, we have found that arsenic (As) accumulation in roots of bread wheat (Triticum aestivum L.) seedlings were significantly different among different wheat cultivars, and As(V) tolerant wheat cultivars have much higher capacities of root As accumulation. However, the reason for the difference remains unclear. Four wheat cultivars with high (MM45 and FM8) or low (QF1 and HM29) levels of arsenic (As) accumulation were selected to investigate the relationship between root As(V) uptake kinetics and root As accumulation...
February 4, 2017: Chemosphere
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