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https://www.readbyqxmd.com/read/28098836/association-of-school-environment-and-after-school-physical-activity-with-health-related-physical-fitness-among-junior-high-school-students-in-taiwan
#1
Kai-Yang Lo, Min-Chen Wu, Shu-Chin Tung, City C Hsieh, Hsueh-Hua Yao, Chien-Chang Ho
The relationship between students' school environment and exercise habits is complex, and is affected by numerous factors. However, the few studies that have been conducted on this relationship have reported inconsistent results, especially regarding Taiwanese students. We conducted this cross-sectional study to investigate the association of school environment and after-school physical activity with health-related physical fitness in Taiwanese adolescents. Data were drawn from a national survey conducted by the Ministry of Education in Taiwan in 2008 of health-related physical fitness measurements among junior high school students (649,442 total) in grades seven to nine...
January 15, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28095322/competent-processing-techniques-for-scaffolds-in-tissue-engineering
#2
REVIEW
Ranjna C Dutta, Madhuri Dey, Aroop K Dutta, Bikramjit Basu
Engineering a functional tissue ex vivo requires a synchronized effort towards developing technologies for ECM mimicking scaffold and cultivating tissue-specific cells in an integrated and controlled manner. Cell-interactive scaffolds in three dimensions (3D), designed and processed appropriately with an apt biomaterial to yield optimal porosity and mechanical strength is the key in tissue engineering (TE). In order to accomplish these facets in a 3D scaffold, multiple techniques and processes have been explored by researchers all over the world...
January 14, 2017: Biotechnology Advances
https://www.readbyqxmd.com/read/28094506/superior-performance-of-artificial-nacre-based-on-graphene-oxide-nanosheets
#3
Yang Wang, Hao Yuan, Piming Ma, Huiyu Bai, Mingqing Chen, Weifu Dong, Yi Xie, Yogesh S Deshmukh
Natural nacre is well-known by its unique properties due to the well-recognized "brick and mortar" structure. Inspired by the natural nacre, graphene oxide (GO) was modified with dopamine in aqueous solution and then chemically reduced to yield polydopamine-capped reduce GO (PDG). The artificial nacre films of poly(vinyl alcohol) (PVA) and PDG presentating layered structure had been successfully constructed via vacuum-assisted assembly process, in which PDG and PVA acted as "bricks" and "mortar", respectively...
January 17, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28087891/physical-activity-and-exercise-for-chronic-pain-in-adults-an-overview-of-cochrane-reviews
#4
REVIEW
Louise J Geneen, R Andrew Moore, Clare Clarke, Denis Martin, Lesley A Colvin, Blair H Smith
BACKGROUND: Chronic pain is defined as pain lasting beyond normal tissue healing time, generally taken to be 12 weeks. It contributes to disability, anxiety, depression, sleep disturbances, poor quality of life, and healthcare costs. Chronic pain has a weighted mean prevalence in adults of 20%.For many years, the treatment choice for chronic pain included recommendations for rest and inactivity. However, exercise may have specific benefits in reducing the severity of chronic pain, as well as more general benefits associated with improved overall physical and mental health, and physical functioning...
January 14, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28080052/mechanochemical-tuning-of-pyrene-absorption-spectrum-using-force-probes
#5
Miguel Angel Fernández-González, Daniel Rivero, Cristina García-Iriepa, Diego Sampedro, Luis Manuel Frutos
Control of absorption spectra in chromophores is a fundamental aspect of many photochemical and photophysical processes as it constitutes the first step of the global photoinduced process. Here we explore the use of mechanical forces to modulate the light absorption process. Specifically, we develop a computational formalism for determining the type of mechanical forces permitting a global tuning of the absorption spectrum. This control extends to the excitation wavelength, absorption bands overlap and oscillator strength...
January 12, 2017: Journal of Chemical Theory and Computation
https://www.readbyqxmd.com/read/28079616/evaluation-of-an-outpatient-rehabilitative-program-to-address-mobility-limitations-among-older-adults
#6
Lorna G Brown, Meng Ni, Catherine T Schmidt, Jonathan F Bean
Live Long Walk Strong is a clinical demonstration program for community-dwelling older patients. It was designed to be consistent with current fall prevention guidelines and reimbursed under the Medicare model. Patients were screened within primary care and referred to a physiatrist followed by systematic assessment and treatment within an outpatient rehabilitative care setting. The treatment included behavioral modification, fall prevention education, community/home exercise integration, and exercise targeting strength, power, flexibility, balance, and endurance...
January 11, 2017: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/28071975/dynamics-of-fluoroquinolones-induced-resistance-in-dna-gyrase-of-mycobacterium-tuberculosis
#7
Bharati Pandey, Sonam Grover, Chetna Tyagi, Sukriti Goyal, Salma Jamal, Aditi Singh, Jagdeep Kaur, Abhinav Grover
DNA gyrase is a validated target of fluoroquinolones which are key components of multidrug resistance (MDR) TB treatment. Most frequent occurring mutations associated with high level of resistance to fluoroquinolone in clinical isolates of TB patients are A90V, D94G and A90V-D94G (double mutant), present in the larger subunit of DNA Gyrase. In order to explicate the molecular mechanism of drug resistance corresponding to these mutations, molecular dynamics and mechanics approach was applied. Structure based molecular docking of complex comprised of DNA bound with Gyrase A (large subunit) and Gyrase C (small subunit) with moxifloxacin revealed high binding affinity to wild type with considerably high Glide XP docking score of -7...
January 10, 2017: Journal of Biomolecular Structure & Dynamics
https://www.readbyqxmd.com/read/28068475/fabrication-of-stretchable-nanocomposites-with-high-energy-density-and-low-loss-from-cross-linked-pvdf-filled-with-poly-dopamine-encapsulated-batio3
#8
Yunchuan Xie, Yangyang Yu, Yefeng Feng, Wanrong Jiang, Zhicheng Zhang
In this report, a simple solution-cast method was employed to prepare poly(dopamine) (PDA) encapsulated BaTiO3 (BT) nanoparticle (PDA@BT) filled composites using PVDF matrix cross-linked by the free radical initiator. The effects of both the particle encapsulation and matrix cross-linking on the mechanical and dielectric properties of the composites were carefully investigated. The results suggested that the introduction of BT particles improved permittivity of the composites to ∼30 at 100 Hz when particle contents of only 7 wt % were utilized...
January 12, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28068471/high-energy-density-polymer-nanocomposites-composed-of-newly-structured-one-dimensional-batio3-al2o3-nanofibers
#9
Zhongbin Pan, Lingmin Yao, Jiwei Zhai, Dezhou Fu, Bo Shen, Haitao Wang
Flexible electrostatic capacitors are potentially applicable in modern electrical and electric power systems. In this study, flexible nanocomposites containing newly structured one-dimensional (1D) BaTiO3@Al2O3 nanofibers (BT@AO NFs) and the ferroelectric polymer poly(vinylidene fluoride) (PVDF) matrix were prepared and systematically studied. The 1D BT@AO NFs, where BaTiO3 nanoparticles (BT NPs) were embedded and homogeneously dispersed into the AO nanofibers, were successfully synthesized via an improved electrospinning technique...
January 18, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28066527/concurrent-validity-of-the-continuous-scale-physical-functional-peformance-10-cs-pfp-10-test-in-transfemoral-amputees
#10
M Jason Highsmith, Jason T Kahle, Rebecca M Miro, M Elaine Cress, William S Quillen, Stephanie L Carey, Rajiv V Dubey, Larry J Mengelkoch
The Continuous Scale-Physical Functional Performance-10 (CS-PFP-10) test consists of 10 standardized daily living tasks that evaluate overall physical functional performance and performance in five individual functional domains: upper body strength (UBS), upper body flexibility (UBF), lower body strength (LBS), balance and coordination (BAL), and endurance (END). This study sought to determine the concurrent validity of the CS-PFP-10 test and its functional domains that involve the lower extremities (LBS, BAL, or END) in comparison to measures that have established validity for use in persons with transfemoral amputation (TFA)...
September 2016: Technology and Innovation
https://www.readbyqxmd.com/read/28062204/impact-of-formulation-properties-and-process-parameters-on-the-dispensing-and-depositioning-of-drug-nanosuspensions-using-micro-valve-technology
#11
Bastian Bonhoeffer, Arno Kwade, Michael Juhnke
Flexible manufacturing processes with continuously adjustable dose strengths are considered particularly innovative and interesting for applications in personalized medicine, continuous manufacturing or early drug development. A piezo-actuated micro-valve has been investigated for the dispensing and depositioning of drug nanosuspensions onto substrates to facilitate the manufacturing of solid oral dosage forms. The investigated micro-valve has been characterized regarding dispensing behavior, mass flow, accuracy and robustness...
January 3, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28059495/ultrafast-self-healing-nanocomposites-via-infrared-laser-and-their-application-in-flexible-electronics
#12
Shuwen Wu, Jinhui Li, Guoping Zhang, Yimin Yao, Gang Li, Rong Sun, Chingping Wong
The continuous evolution toward flexible electronics with mechanical robust property and restoring structure simultaneously places high demand on a set of polymeric material substrate. Herein, we describe a composite material composed of a polyurethane based on Diels-Alder chemistry (PU-DA) covalently linked with functionalized graphene nanosheets (FGNS), which shows mechanical robust and infrared (IR) laser self-healing properties at ambient conditions and is therefore suitable for flexible substrate applications...
January 13, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28058792/metal-phenolic-carbon-nanocomposites-for-robust-and-flexible-energy-storage-devices
#13
Jun Young Oh, Yeonsu Jung, Young Shik Cho, Jaeyoo Choi, Ji Ho Youk, Nina Fechler, Seung Jae Yang, Chong Rae Park
Future electronic applications such as wearable electronics depend on the successful construction of energy storage devices with superior flexibility and high electrochemical performance. However, these prerequisites are challenging to combine: external forces often cause performance degradation while the trade-off between the required nanostructures for strength and electrochemical performance results only in energy storage. In this paper, we present a flexible supercapacitor design based on tannic acid (TA) and carbon nanotubes (CNTs) with a unique nanostructure...
January 5, 2017: ChemSusChem
https://www.readbyqxmd.com/read/28046765/su-f-t-49-dosimetry-parameters-and-tps-commissioning-for-the-civasheet-directional-pd-103-brachytherapy-source
#14
M J Rivard
PURPOSE: The CivaSheet is a new LDR Pd-103 brachytherapy device offering directional-radiation for preferentially irradiating malignancies with healthy-tissue sparing. Observations are presented on dosimetric characterization, TPS commissioning, and evaluation of the dosesuperposition- principle for summing individual elements comprising a planar CivaSheet METHODS: The CivaSheet comprises individual sources (CivaDots, 0.05cm thick and 0.25cm diam.) inside a flexible bioabsorbable substrate with a 0...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28045914/does-physical-self-concept-mediate-the-relationship-between-motor-abilities-and-physical-activity-in-adolescents-and-young-adults
#15
Darko Jekauc, Matthias Oliver Wagner, Christian Herrmann, Khaled Hegazy, Alexander Woll
The purpose of this study is to examine the reciprocal relationship between motor abilities and physical activity and the mediation effects of physical self-concept in this relationship using longitudinal data. We expect that the effects of motor abilities on physical activity are rather indirect via physical self-concept and that the effects of physical activity on motor abilities are rather direct without involvement of the motor ability self-concept. Data was obtained from the Motorik-Modul (MoMo) Longitudinal Study in which 335 boys and 363 girls aged 11-17 years old at Baseline were examined twice in a period of six years...
2017: PloS One
https://www.readbyqxmd.com/read/28045485/highly-anisotropic-thermal-conductivity-of-layer-by-layer-assembled-nanofibrillated-cellulose-graphene-nanosheets-hybrid-films-for-thermal-management
#16
Na Song, Dejin Jiao, Siqi Cui, Xingshuang Hou, Peng Ding, Liyi Shi
An anisotropic thermally conductive film with tailorable microstructures and macroproperties is fabricated using a layer-by-layer (LbL) assembly of graphene oxide (GO) and nanofibrillated cellulose (NFC) on a flexible NFC substrate driven by hydrogen bonding interactions, followed by chemical reduction process. The resulting NFC/reduced graphene oxide (RGO) hybrid film reveals an orderly hierarchical structure in which the RGO nanosheets exhibit a high degree of orientation along the in-plane direction. The assembly cycles dramatically increase the in-plane thermal conductivity (λX) of the hybrid film to 12...
January 10, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28045305/using-online-crowdsourcing-platforms-for-data-collection-in-personality-disorder-research-the-example-of-amazon-s-mechanical-turk
#17
Joshua D Miller, Michael Crowe, Brandon Weiss, Jessica L Maples-Keller, Donald R Lynam
The use of crowdsourcing platforms such as Amazon's Mechanical Turk (MTurk) for data collection in the behavioral sciences has increased substantially in the past several years due in large part to (a) the ability to recruit large samples, (b) the inexpensiveness of data collection, (c) the speed of data collection, and (d) evidence that the data collected are, for the most part, of equal or better quality to that collected in undergraduate research pools. In this review, we first evaluate the strengths and potential limitations of this approach to data collection...
January 2017: Personality Disorders
https://www.readbyqxmd.com/read/28040748/how-the-strengths-of-lisp-family-languages-facilitate-building-complex-and-flexible-bioinformatics-applications
#18
Bohdan B Khomtchouk, Edmund Weitz, Peter D Karp, Claes Wahlestedt
We present a rationale for expanding the presence of the Lisp family of programming languages in bioinformatics and computational biology research. Put simply, Lisp-family languages enable programmers to more quickly write programs that run faster than in other languages. Languages such as Common Lisp, Scheme and Clojure facilitate the creation of powerful and flexible software that is required for complex and rapidly evolving domains like biology. We will point out several important key features that distinguish languages of the Lisp family from other programming languages, and we will explain how these features can aid researchers in becoming more productive and creating better code...
December 31, 2016: Briefings in Bioinformatics
https://www.readbyqxmd.com/read/28039011/a-directional-103-pd-brachytherapy-device-dosimetric-characterization-and-practical-aspects-for-clinical-use
#19
Mark J Rivard
PURPOSE: A brachytherapy (BT) device has been developed with shielding to provide directional BT for preferentially irradiating malignancies while sparing healthy tissues. The CivaSheet is a flexible low-dose-rate BT device containing CivaDots with (103)Pd shielded by a thin Au disk. This is the first report of a clinical dosimetric characterization of the CivaSheet device. METHODS AND MATERIALS: Radiation dose distributions near a CivaDot were estimated using the MCNP6 radiation transport code...
December 27, 2016: Brachytherapy
https://www.readbyqxmd.com/read/28038870/real-time-forecasting-of-infectious-disease-dynamics-with-a-stochastic-semi-mechanistic-model
#20
Sebastian Funk, Anton Camacho, Adam J Kucharski, Rosalind M Eggo, W John Edmunds
Real-time forecasts of infectious diseases can help public health planning, especially during outbreaks. If forecasts are generated from mechanistic models, they can be further used to target resources or to compare the impact of possible interventions. However, paremeterising such models is often difficult in real time, when information on behavioural changes, interventions and routes of transmission are not readily available. Here, we present a semi-mechanistic model of infectious disease dynamics that was used in real time during the 2013-2016 West African Ebola epidemic, and show fits to a Ebola Forecasting Challenge conducted in late 2015 with simulated data mimicking the true epidemic...
December 16, 2016: Epidemics
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