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https://www.readbyqxmd.com/read/28738668/study-of-effects-of-multimodal-exercise-programme-on-physical-fitness-and-health-perception-in-community-living-hungarian-older-adults
#1
Anikó Virág, Izabella Harkányi, Csilla K Karóczi, Zsolt Vass, Éva Kovács
AIM: The aim of this study was to investigate the effects on fitness indicators and subjective health-perception of a multimodal exercise programme provided by a district in Budapest among community-living seniors. METHODS: Sixty community-living older adults aged over 60 years formed beginner group (who were at the beginning of the exercise programme), advanced group (who had been in the programme for 3-6 months), active group (who had been participating in the exercise programme for at least 6 months, in addition to Nordic Walking programme) and a physically inactive control group...
July 24, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28738664/bomb-swab-can-trace-explosive-particle-sampling-and-detection-be-improved
#2
Danny Fisher, Raya Zach, Yossef Matana, Paz Elia, Shiran Shustack, Yarden Sharon, Yehuda Zeiri
The marked increase in international terror in recent years requires the development of highly efficient methods to detect trace amounts of explosives at airports, border crossings and check points. The preferred analytical method worldwide is the ion mobility spectrometry (IMS) that is capable of detecting most explosives at the nano-gram level. Sample collection for the IMS analysis is based on swabbing of a passenger's belongings to collect possible explosive residues. The present study examines a wide range of issues related to swab-based particle collection and analysis, in the hope of gaining deeper understanding into this technique that will serve to improve the detection process...
November 1, 2017: Talanta
https://www.readbyqxmd.com/read/28738654/development-of-a-sensitive-and-quantitative-uhplc-ms-ms-method-to-study-the-whole-body-uptake-of-pharmaceuticals-in-zebrafish
#3
Stanislav Kislyuk, Jerome Kroonen, Erwin Adams, Patrick Augustijns, Peter de Witte, Deirdre Cabooter
An analytical procedure to measure the whole-body uptake of pharmaceuticals in zebrafish has been developed using state-of-the-art methodologies. A sample preparation procedure for 9 pharmaceuticals displaying a variety in physicochemical properties was developed using 10-day old zebrafish (TG898). For an efficient homogenization of the samples and subsequent recovery of the compounds of interest, different amounts of organic solvents in combination with acidic modifiers were added to zebrafish samples. Samples were subsequently processed using a powerful bath sonicator and centrifuged...
November 1, 2017: Talanta
https://www.readbyqxmd.com/read/28738647/development-of-an-analytical-methodology-for-obtaining-quantitative-mass-concentrations-from-laap-tof-ms-measurements
#4
Rachel Gemayel, Brice Temime-Roussel, Nathalie Hayeck, Adrien Gandolfo, Stig Hellebust, Sasho Gligorovski, Henri Wortham
Laser ablation aerosol particle-time of flight mass spectrometer (LAAP-ToF-MS) measures the size number of particles, and chemical composition of individual particles in real-time. LAAP-ToF-MS measurements of chemical composition are difficult to quantify, mostly because the instrument sensitivities to various chemical species in the multicomponent atmospheric aerosol particles are unknown. In this study, we investigate a field-based approach for quantitative measurements of ammonium, nitrate, sulfate, OC, and EC, in size-segregated atmospheric aerosols, by LAAP-ToF-MS using concurrent measurements from high-resolution time-of-flight aerosol mass spectrometer (HR-ToF-AMS), and multi-angle absorption photometer (MAAP)...
November 1, 2017: Talanta
https://www.readbyqxmd.com/read/28738646/synthesis-characterization-and-application-of-a-novel-multifunctional-stationary-phase-for-hydrophilic-interaction-reversed-phase-mixed-mode-chromatography
#5
Hayriye Aral, K Serdar Çelik, Ramazan Altındağ, Tarık Aral
A novel multifunctional stationary phase based on silica gel was synthesised starting from L- isoleucine and 4-phenylbutylamine and evaluated as a hydrophilic interaction/reversed-phase mixed-mode stationary phase for high-performance liquid chromatography (HPLC). The prepared stationary phase was characterized by elemental analysis, infrared spectroscopy (IR), scanning electron microscopy (SEM), Brunauer, Emmett and Teller (BET) and solid-state (13)C nuclear magnetic resonance (NMR). The mechanisms involved in the chromatographic separation are multi-interaction, including hydrophobic, π-π, hydrogen-bonding, dipole-dipole and ion-dipole interactions...
November 1, 2017: Talanta
https://www.readbyqxmd.com/read/28738603/vortex-assisted-liquid-liquid-liquid-microextraction-followed-by-high-performance-liquid-chromatography-for-the-simultaneous-determination-of-fourteen-phenolic-acids-in-honey-iced-tea-and-canned-coffee-drinks
#6
Marwan Shalash, Ahmad Makahleh, Salizawati Muhamad Salhimi, Bahruddin Saad
A vortex-assisted liquid-liquid-liquid microextraction method followed by high performance liquid chromatography-diode array detection for the determination of fourteen phenolic acids (cinnamic, m-coumaric, chlorogenic, syringic, ferulic, o-coumaric, p-coumaric, vanillic, p-hydroxybenzoic, caffeic, 2, 4-dihydroxybenzoic, sinapic, gentisic and gallic acids) in honey, iced tea and canned coffee drink samples has been developed. The separation was achieved using a Poroshell 120-EC-C18 column under a gradient elution at a flow rate of 0...
November 1, 2017: Talanta
https://www.readbyqxmd.com/read/28738566/preparation-and-evaluation-of-a-novel-n-benzyl-phenethylamino-%C3%AE-cyclodextrin-bonded-chiral-stationary-phase-for-hplc
#7
Liang Li, Biaoping Cheng, Rendan Zhou, Zhigang Cao, Chun Zeng, Laisheng Li
A novel N-benzyl-phenethylamino-β-cyclodextrin-bonded ordered mesoporous SBA-15 chiral stationary phase (BZCDP) for high-performance liquid chromatography (HPLC) was prepared. The structure and morphology of the ligand and the stationary phase were characterized by mass spectrometry, elemental analysis, infrared spectroscopy, scanning electron microscopy, transmission electron microscopy and thermogravimetric analysis. The enantiomers of chiral compounds including nine common β-adrenergic blocker drugs (β-blockers), eight dansyl amino acids (DNS-AA) and six flavanones were successfully separated by polar organic solvent and reversed-phase chromatography, respectively...
November 1, 2017: Talanta
https://www.readbyqxmd.com/read/28738554/amperometric-detector-for-gas-chromatography-based-on-a-silica-sol-gel-solid-electrolyte
#8
William H Steinecker, Krzysztof Miecznikowski, Pawel J Kulesza, Zechariah D Sandlin, James A Cox
An electrochemical cell comprising a silica sol-gel solid electrolyte, a working electrode that protrudes into a gas phase, and reference and counter electrodes that contact the solid electrolyte comprises an amperometric detector for gas chromatography. Under potentiostatic conditions, a current related to the concentration of an analyte in the gas phase is produced by its oxidation at the three-phase boundary among the sol-gel, working electrode, and the gas phase. The sol-gel is processed to contain an electrolyte that also serves as a humidistat to maintain a constant water activity even in the presence the gas chromatographic mobile phase...
November 1, 2017: Talanta
https://www.readbyqxmd.com/read/28738527/evaluation-of-heavy-metal-mobilization-in-creek-sediment-influence-of-rac-values-and-ambient-environmental-factors
#9
Guannan Liang, Bo Zhang, Mao Lin, Simiao Wu, Hao Hou, Jia Zhang, Guangren Qian, Xin Huang, Jizhi Zhou
The risk assessment code (RAC) is a common method for assessing heavy metal (HM) mobility and their potential health risks, based on HM total concentration and chemical speciation. In this study, both the RAC and the influence of ambient environmental factors were investigated in a river sediment system. Sixty-eight sediment samples were collected from the main river system in Shanghai, China. The total concentration and chemical speciation of Cu, Zn, Ni, Pb, Cd, Cr, As, and Hg were determined in the samples...
July 19, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28738221/self-efficacy-of-physical-education-teachers-in-including-students-with-cerebral-palsy-in-their-classes
#10
Yeshayahu Hutzler, Sharon Barak
Children with cerebral palsy (CP) are often mainstreamed into the general education system, but are likely to be excluded from physical education (PE) classes. A questionnaire was constructed and utilized to measure PE teachers' self-efficacy (SE) toward inclusion of students with CP in each of three mobility categories (independent, using assistive devices, using wheelchair mobility) and the impact of experience and training on teachers' SE. Participants in the study were 121 PE teachers from different parts of Israel (mean age: 41...
July 21, 2017: Research in Developmental Disabilities
https://www.readbyqxmd.com/read/28738199/acute-ecotoxicity-of-coated-colloidal-goethite-nanoparticles-on-daphnia-magna-evaluating-the-influence-of-exposure-approaches
#11
V González-Andrés, M Diez-Ortiz, C Delpivo, G Janer, A Fritzsche, S Vázquez-Campos
Synthesized iron oxide nanoparticles have been proposed as an alternative to non-dispersed iron oxides for in situ environmental remediation. Their colloidal properties enable their injection into porous media, i.e. soils and aquifers, and offer a higher efficiency in removing contaminants. However, this dispersed state is also the cause of concerns over their environmental fate and toxicity, e.g., by increasing the exposure time to aquatic organisms in groundwater remediation activities. Therefore, the objective of in situ groundwater remediation is to establish local reactive barriers in the subsurface by injection by means of reactive colloids with a controllable mobility under in situ conditions and present as colloids as shortly as possible...
July 21, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28738030/delivery-of-%C3%A2-clinical-services-mobilizing-advanced-practice-providers-to-enhance-patient-care
#12
Kimberly Tripp, LaKeisha Day, Alexandra Blake, Ivy Bertram
Advanced practice providers (APPs) are increasingly being used in a variety of healthcare settings to provide care, treatment, and services to patients with cancer. They are also being deployed to acute oncologic settings to enhance patient care delivery and address the ever-evolving needs of patients in academic medicine. In response, the University of Texas MD Anderson Cancer Center developed a series of innovative clinical programs staffed by acute care APPs. These provide an opportunity to rapidly adapt to the acute care needs of patients with cancer while fostering the professional development of APPs within the full scope of their oncologic clinical practice...
August 1, 2017: Clinical Journal of Oncology Nursing
https://www.readbyqxmd.com/read/28738022/werner-syndrome-a-model-for-sarcopenia-due-to-accelerated-aging
#13
Masaya Yamaga, Minoru Takemoto, Mayumi Shoji, Kenichi Sakamoto, Masashi Yamamoto, Takahiro Ishikawa, Masaya Koshizaka, Yoshiro Maezawa, Kazuki Kobayashi, Koutaro Yokote
Werner syndrome (WS) is a rare inheritable progeroid syndrome caused by a mutation in the WRN gene. Although WS has been described as a characteristic appearance of very slender extremities with a stocky trunk, few studies have investigated the loss of muscle mass, fat mass distribution (body composition), and mobility according to age and sex. Therefore, the aim of this study was to precisely describe the body composition in WS. Nine Japanese patients with WS (four males and five females; mean age 48±8.8 years) were recruited...
July 19, 2017: Aging
https://www.readbyqxmd.com/read/28737964/laparoscopic-duhamel-procedure-with-ex-anal-rectal-transection-for-right-sided-hirschsprung-s-disease
#14
Xi Zhang, Li Yang, Shao-Tao Tang, Guo-Qing Cao, Shuai Li, Meng Jiang, Meng Xiong, De-Hua Yang, Xiao-Pan Chang, Kang Li, Ya-Zhen Ma
BACKGROUND: Increased defecation frequency and soiling are common complications of surgery for right-sided Hirschsprung's disease (HD). Though the laparoscopic Duhamel procedure is a favorable option in right-sided HD, the conventional laparoscopic technique is time consuming and has complications that are associated with the reservoir. In this study, we described a modified laparoscopic Duhamel technique with ex-anal rectal transection combined with the Deloyer's procedure for right-sided HD...
July 24, 2017: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/28737888/discovery-of-novel-proline-based-neuropeptide-ff-receptor-antagonists
#15
Thuy Nguyen, Ann M Decker, Tiffany L Langston, Kelly M Mathews, Justin N Siemian, Jun-Xu Li, Danni L Harris, Scott P Runyon, Yanan Zhang
The neuropeptide FF (NPFF) system has been implicated in a number of physiological processes including modulating the pharmacological activity of opioid analgesics and several other classes of drugs of abuse. In this study, we report the discovery of a novel proline scaffold with antagonistic activity at the NPFF receptors through a high throughput screening campaign using a functional calcium mobilization assay. Focused structure-activity relationship studies on the initial hit 1 have resulted in several analogs with calcium mobilization potencies in the submicromolar range and modest selectivity for the NPFF1 receptor...
July 24, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/28737810/ionic-diffusion-and-proton-transfer-in-aqueous-solutions-of-alkali-metal-salts
#16
Giuseppe Cassone, Fabrizio Creazzo, Paolo V Giaquinta, Jiri Sponer, Franz Saija
We report on a series of ab initio molecular dynamics investigations on LiCl, NaCl, and KCl aqueous solutions under the effect of static electric fields. We have found that although in low-to-moderate field intensity regimes the well-known sequence of cationic mobilities μ(K(+)) > μ(Na(+)) > μ(Li(+)) (i.e., the bigger the cation the higher the mobility) is recovered, from intense field strengths this intuitive rule is no longer verified. In fact, field-induced water molecular dissociations lead to more complex phenomena regulating the standard migration properties of the simplest monovalent cations...
July 24, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28737790/tuning-the-gap-of-lead-based-halide-perovskites-by-introducing-superalkali-species-at-the-cationic-sites-of-abx3-type-structure
#17
C Paduani, Andrew M Rappe
We study with scalar relativistic density functional theory (DFT) calculations the effect of changes in the ionicity of the bonding mechanism and charge donation on the structure and electronic properties of new lead halide perovskites which show promising performance in optoelectronic applications as long-wave infrared detectors and thermoelectrics. Our results provide evidence that the band gap of these compounds can be tuned upon the introduction of appropriate superalkali moieties at the cationic A-sites in the CsPbI3-type structure...
July 24, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28737780/ultra-low-lattice-thermal-conductivity-and-high-carrier-mobility-of-monolayer-sns2-and-snse2-a-first-principles-study
#18
Aamir Shafique, Abdus Samad, Young-Han Shin
Using density functional theory, we systematically investigate the lattice thermal conductivity and carrier mobility of monolayer SnX2 (X = S, Se). The room-temperature ultra low lattice thermal conductivities found in monolayer SnS2 (6.41 W m(-1) K(-1)) and SnSe2 (3.82 W m(-1) K(-1)) are attributed to the low phonon velocity, low Debye temperature, weak bonding interactions, and strong anharmonicity in monolayer SnX2. The predicted values of lattice thermal conductivity are lower than those of other two-dimensional materials such as stanene, phosphorene, monolayer MoS2, and bulk SnX2...
July 24, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28737732/the-role-of-heart-rate-variability-parameters-in-activity-recognition-and-energy-expenditure-estimation-using-wearable-sensors
#19
Heesu Park, Suh-Yeon Dong, Miran Lee, Inchan Youn
Human-activity recognition (HAR) and energy-expenditure (EE) estimation are major functions in the mobile healthcare system. Both functions have been investigated for a long time; however, several challenges remain unsolved, such as the confusion between activities and the recognition of energy-consuming activities involving little or no movement. To solve these problems, we propose a novel approach using an accelerometer and electrocardiogram (ECG). First, we collected a database of six activities (sitting, standing, walking, ascending, resting and running) of 13 voluntary participants...
July 24, 2017: Sensors
https://www.readbyqxmd.com/read/28737670/motor-control-training-for-the-shoulder-with-smart-garments
#20
Qi Wang, Liesbet De Baets, Annick Timmermans, Wei Chen, Luca Giacolini, Thomas Matheve, Panos Markopoulos
Wearable technologies for posture monitoring and posture correction are emerging as a way to support and enhance physical therapy treatment, e.g., for motor control training in neurological disorders or for treating musculoskeletal disorders, such as shoulder, neck, or lower back pain. Among the various technological options for posture monitoring, wearable systems offer potential advantages regarding mobility, use in different contexts and sustained tracking in daily life. We describe the design of a smart garment named Zishi to monitor compensatory movements and evaluate its applicability for shoulder motor control training in a clinical setting...
July 22, 2017: Sensors
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