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https://www.readbyqxmd.com/read/28817153/a-comparative-study-on-the-cardiac-morphology-and-vertical-jump-height-of-adolescent-black-south-african-male-and-female-amateur-competitive-footballers
#1
Philippe Jean-Luc Gradidge, Demitri Constantinou
OBJECTIVE: The aim of this comparative study was to determine the gender differences in cardiac morphology and performance in adolescent black South African footballers. METHODS: Anthropometry, electrocardiography and echocardiography data were measured in 167 (85 males and 82 females) adolescent black South African footballers (mean age: 14.8 ± 1.3 years). Vertical jump height was used as a performance measure of explosive lower-limb power. RESULTS: The males had less body fat compared with the females (12...
August 15, 2017: Cardiovascular Journal of Africa
https://www.readbyqxmd.com/read/28816944/acute-changes-in-neuromuscular-activity-in-vertical-jump-and-flexibility-after-exposure-to-whole-body-vibration
#2
Giuseppe Annino, Ferdinando Iellamo, Francesco Palazzo, Augusto Fusco, Mauro Lombardo, Francesca Campoli, Elvira Padua
This study was aimed to investigate the neuromuscular activity after 10 minutes of exposure to a whole body vibration (WBV) session.Twenty male young adults (24.8 ± 2.5 year olds) were randomized and divided into 2 groups: the vibration group (VG) was exposed to 10 minutes of WBV at 35 Hz; performed 10 minutes of WBV at 35 Hz (displacement = 5 mm; magnitude = 5 g); the nonvibrated group (NVG) was the placebo group that maintained the same position on the plate but without exposure to any type of vibration...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28816433/syndiotactic-polystyrene-based-ionogel-membranes-for-high-temperature-electrochemical-applications
#3
Prasad Raut, Wenfeng Liang, Yu-Ming Chen, Yu Zhu, Sadhan C Jana
This work focuses on ionogel membranes for use in Li-ion batteries fabricated from syndiotactic polystyrene (sPS) gels filled with ionic liquids (ILs). The aim is to increase the operating temperature of Li-ion batteries. s. Thermal stability and safe operation of Li-ion batteries are two key attributes for their success in hybrid vehicles and other high temperature applications. The volatility of the liquid electrolytes in current lithium-ion battery technology causes thermal runaway leading to fire, explosion, and swelling of the cell...
August 17, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28815200/the-case-for-laboratory-developed-procedures-quality-and-positive-impact-on-patient-care
#4
Karen L Kaul, Linda M Sabatini, Gregory J Tsongalis, Angela M Caliendo, Randall J Olsen, Edward R Ashwood, Sherri Bale, Robert Benirschke, Dean Carlow, Birgit H Funke, Wayne W Grody, Randall T Hayden, Madhuri Hegde, Elaine Lyon, Kazunori Murata, Melissa Pessin, Richard D Press, Richard B Thomson
An explosion of knowledge and technology is revolutionizing medicine and patient care. Novel testing must be brought to the clinic with safety and accuracy, but also in a timely and cost-effective manner, so that patients can benefit and laboratories can offer testing consistent with current guidelines. Under the oversight provided by the Clinical Laboratory Improvement Amendments, laboratories have been able to develop and optimize laboratory procedures for use in-house. Quality improvement programs, interlaboratory comparisons, and the ability of laboratories to adjust assays as needed to improve results, utilize new sample types, or incorporate new mutations, information, or technologies are positive aspects of Clinical Laboratory Improvement Amendments oversight of laboratory-developed procedures...
January 2017: Acad Pathol
https://www.readbyqxmd.com/read/28815113/towards-generation-management-and-exploration-of-combined-radiomics-and-pathomics-datasets-for-cancer-research
#5
Joel Saltz, Jonas Almeida, Yi Gao, Ashish Sharma, Erich Bremer, Tammy DiPrima, Mary Saltz, Jayashree Kalpathy-Cramer, Tahsin Kurc
Cancer is a complex multifactorial disease state and the ability to anticipate and steer treatment results will require information synthesis across multiple scales from the host to the molecular level. Radiomics and Pathomics, where image features are extracted from routine diagnostic Radiology and Pathology studies, are also evolving as valuable diagnostic and prognostic indicators in cancer. This information explosion provides new opportunities for integrated, multi-scale investigation of cancer, but also mandates a need to build systematic and integrated approaches to manage, query and mine combined Radiomics and Pathomics data...
2017: AMIA Summits on Translational Science Proceedings
https://www.readbyqxmd.com/read/28814073/multi-electron-effects-in-the-strong-field-sequential-ionization-of-aligned-ch3i-molecules
#6
Sizuo Luo, Wenhui Hu, Jiaqi Yu, Xiaokai Li, Lanhai He, Chuncheng Wang, Fuchun Liu, Dajun Ding
Strong field sequential ionization of symmetric-top CH3I molecules is studied experimentally by using a combined method of femtosecond laser induced impulsive alignment and time-of-flight mass spectrometry. Both alignment and angular dependent ion yields have been measured and the sequential ionization of multi-electron has been discussed. It's find that the maximum ionization happens when the polarization of probe laser is perpendicular to the internuclear axis of molecules, and the signal of fragment ions peaks at the polarization of probe laser is parallel to the internuclear axis of molecules...
August 16, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/28810971/effect-of-mixed-basic-military-training-on-the-physical-fitness-of-male-and-female-soldiers
#7
Paola S Wood, Catharina C Grant, Peet J du Toit, Lizelle Fletcher
INTRODUCTION: Mixed gender basic military training (BMT) is adopted to integrate the female South African soldier into the military. This study aimed to assess gender differences before, during (12 weeks), and after a 20-week mixed BMT course and determine if BMT significantly reduced these differences. METHODS: A total of 186 soldiers (114 male: mean age = 21.0 ± 1.1 year; 72 female: mean age = 20.5 ± 1.2 year) completed the BMT course and all anthropometric, physical fitness, explosive power, and hand grip strength measurements...
July 2017: Military Medicine
https://www.readbyqxmd.com/read/28810732/tracking-radionuclide-fractionation-in-the-first-atomic-explosion-using-stable-elements
#8
Chloe E Bonamici, Richard L Hervig, William S Kinman
Compositional analysis of post-detonation fallout is a tool for forensic identification of nuclear devices. However, the relationship between device composition and fallout composition is difficult to interpret because of the complex combination of physical mixing, nuclear reactions, and chemical fractionations that occur in the chaotic nuclear fireball. Using a combination of in situ microanalytical techniques - electron microprobe analysis and secondary ion mass spectrometry - we show that some heavy stable elements (Rb, Sr, Zr, Ba, Cs, Ba, La, Ce, Nd, Sm, Dy, Lu, U, Th) in glassy fallout from the first nuclear test, Trinity, are reliable chemical proxies for radionuclides generated during the explosion...
August 16, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28809982/coordination-polymer-derived-nano-sized-zinc-ferrite-with-excellent-performance-in-nitro-explosive-detection
#9
Debal Kanti Singha, Partha Mahata
Herein, a mixed metal coordination polymer, {(H2pip)[Zn1/3Fe2/3(pydc-2,5)2(H2O)]·2H2O} 1 {where H2pip = piperazinediium and pydc-2,5 = pyridine-2,5-dicarboxylate}, was successfully synthesized using a hydrothermal technique. To confirm the structure and phase purity of 1, single crystals of an isomorphous pure Fe compound, {(H2pip)[Fe(pydc-2,5)2(H2O)]·2H2O} 1a, were synthesized based on similar synthetic conditions. Single crystal X-ray data of 1a confirmed the one-dimensional anionic metal-organic coordination polymer hydrogen bonded with protonated piprazine (piperazinediium) and lattice water molecules...
August 15, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28809479/natural-seminal-amyloids-as-targets-for-development-of-synthetic-inhibitors-of-hiv-transmission
#10
Daniel A Sheik, Stephen Dewhurst, Jerry Yang
Amyloids refer to a class of protein or peptide aggregates that are heterogeneous in size, morphology, and composition, and are implicated to play a central role in many neurodegenerative and systemic diseases. The strong correlation between biological activity and extent of aggregation of amyloidogenic proteins and peptides has led to an explosion of research efforts to target these materials with synthetic molecules or engineered antibodies to try to attenuate their function in disease pathology. Although many of these efforts to attenuate amyloid function have shown great promise in laboratory settings, the vast majority of work has been focused on targeting amyloids associated with neurologic diseases, which has been met with significant additional challenges that preclude clinical evaluation...
August 15, 2017: Accounts of Chemical Research
https://www.readbyqxmd.com/read/28802906/pathways-towards-indolent-b-cell-lymphoma-etiology-and-therapeutic-strategies
#11
REVIEW
Michiel van den Brand, Blanca Scheijen, Corine J Hess, J Han Jm van Krieken, Patricia J T A Groenen
Although patients with indolent B-cell lymphomas have a relatively good survival rate, conventional chemotherapy is not curative. Disease courses are typically characterized by multiple relapses and progressively shorter response duration with subsequent lines of therapy. There has been an explosion of innovative targeted agents in the past years. This review discusses current knowledge on the etiology of indolent B-cell lymphomas with respect to the role of micro-organisms, auto-immune diseases, and deregulated pathways caused by mutations...
August 5, 2017: Blood Reviews
https://www.readbyqxmd.com/read/28801886/effects-of-3-nitro-1-2-4-triazol-5-one-on-survival-growth-and-metamorphosis-in-the-northern-leopard-frog-lithobates-pipiens
#12
David A Pillard, William S Eck, Mark S Johnson, Stephanie Packard
New explosive formulations are being developed to be less sensitive to impact and inadvertent explosion, increasing safety for the warfighter. Since testing and training make environmental releases imminent, the toxicity of 3-nitro-1,2,4-triazol-5-one (NTO), a component of Insensitive Munitions eXplosive (IMX) formulations, was assessed in a one-generation study to the northern leopard frog (Lithobates ( = Rana) pipiens). Because NTO in water creates acidic conditions, acute studies were conducted with non-pH-adjusted NTO, while a long-term (70-d) study was conducted with neutralized NTO...
August 11, 2017: Ecotoxicology
https://www.readbyqxmd.com/read/28801875/nanoparticles-in-explosives-detection-the-state-of-the-art-and-future-directions
#13
William J Peveler, Sultan Ben Jaber, Ivan P Parkin
No abstract text is available yet for this article.
August 12, 2017: Forensic Science, Medicine, and Pathology
https://www.readbyqxmd.com/read/28801785/-treatment-strategies-for-mass-casualty-incidents-and-terrorist-attacks-in-trauma-and-vascular-surgery-presentation-of-a-treatment-concept
#14
REVIEW
B Friemert, A Franke, D Bieler, A Achatz, D Hinck, M Engelhardt
The treatment of patients in the context of mass casualty incidents (MCI) represents a great challenge for the participating rescue workers and clinics. Due to the increase in terrorist activities it is necessary to become familiar with this new kind of threat to civilization with respect to the medical treatment of victims of terrorist attacks. There are substantial differences between a "normal" MCI and a terrorist MCI with respect to injury patterns (blunt trauma vs. penetrating/perforating trauma), the type and form of the incident (MCI=static situation vs...
August 11, 2017: Der Chirurg; Zeitschrift Für Alle Gebiete der Operativen Medizen
https://www.readbyqxmd.com/read/28801562/explosive-death-induced-by-mean-field-diffusion-in-identical-oscillators
#15
Umesh Kumar Verma, Amit Sharma, Neeraj Kumar Kamal, Jürgen Kurths, Manish Dev Shrimali
We report the occurrence of an explosive death transition for the first time in an ensemble of identical limit cycle and chaotic oscillators coupled via mean-field diffusion. In both systems, the variation of the normalized amplitude with the coupling strength exhibits an abrupt and irreversible transition to death state from an oscillatory state and this first order phase transition to death state is independent of the size of the system. This transition is quite general and has been found in all the coupled systems where in-phase oscillations co-exist with a coupling dependent homogeneous steady state...
August 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28801135/pyrrolo-2-1-f-1-2-4-triazines-from-c-nucleosides-to-kinases-and-back-again-the-remarkable-journey-of-a-versatile-nitrogen-heterocycle
#16
REVIEW
Gregory R Ott, David A Favor
Pyrrolo[2,1-f][1,2,4]triazine, a unique NN bond-containing heterocycle with a bridgehead nitrogen, was first synthesized in the late 1970s but did not find utility until more than a decade later in the early 1990s when it was incorporated into C-nucleosides as a novel purine-like mimetic. This heterocycle remained at the fringes of medicinal chemistry until a confluence of events spurred by the explosion of the kinase inhibitor field in the early 2000s and the pressing need for novel, druggable scaffolds to occupy that exciting space led to numerous applications against diverse therapeutic targets...
July 30, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28798858/generation-of-subsurface-voids-incubation-effect-and-formation-of-nanoparticles-in-short-pulse-laser-interactions-with-bulk-metal-targets-in-liquid-molecular-dynamics-study
#17
Cheng-Yu Shih, Maxim V Shugaev, Chengping Wu, Leonid V Zhigilei
The ability of short pulse laser ablation in liquids to produce clean colloidal nanoparticles and unusual surface morphology has been employed in a broad range of practical applications. In this paper, we report the results of large-scale molecular dynamics simulations aimed at revealing the key processes that control the surface morphology and nanoparticle size distributions by pulsed laser ablation in liquids. The simulations of bulk Ag targets irradiated in water are performed with an advanced computational model combining a coarse-grained representation of liquid environment and an atomistic description of laser interaction with metal targets...
August 3, 2017: Journal of Physical Chemistry. C, Nanomaterials and Interfaces
https://www.readbyqxmd.com/read/28797796/low-134-cs-137-cs-ratio-anomaly-in-the-north-northwest-direction-from-the-fukushima-dai-ichi-nuclear-power-station
#18
Shingo Kobayashi, Takayuki Shinomiya, Takahiro Ishikawa, Hitoshi Imaseki, Kazuki Iwaoka, Hisashi Kitamura, Satoshi Kodaira, Keisuke Kobayashi, Masakazu Oikawa, Norihiro Miyaushiro, Yoshio Takashima, Yukio Uchihori
A low (134)Cs/(137)Cs ratio anomaly in the north-northwest (NNW) direction from the Fukushima Dai-ichi Nuclear Power Station (FDNPS) is identified by a new analysis of the (134)Cs/(137)Cs ratio dataset which we had obtained in 2011-2015 by a series of car-borne surveys that employed a germanium gamma-ray spectrometer. We found that the (134)Cs/(137)Cs ratio is slightly lower (0.95, decay-corrected to March 11, 2011) in an area with a length of about 15 km and a width of about 3 km in the NNW direction from the FDNPS than in other directions from the station...
August 7, 2017: Journal of Environmental Radioactivity
https://www.readbyqxmd.com/read/28797534/current-status-of-therapeutic-and-vaccine-approaches-against-zika-virus
#19
REVIEW
Braira Wahid, Amjad Ali, Shazia Rafique, Muhammad Idrees
Zika virus (ZIKV) is a global threat because it is spreading at an alarming rate because of its wider range of transmission routes. The neuroteratogenic nature of ZIKV infection is posing serious threats to unborn lives therefore, it is necessary to develop an ideal ZIKV prophylactic or therapeutic agent urgently. Researchers are having tough time finding a treatment for ZIKV in part because of serious consequences of vaccines and drugs to unborn lives and pregnant women. However, in vitro and in vivo evaluation of therapeutic efficacy of DNA vaccine, recombinant subunit vaccine, and ZIKV purified inactivated vaccine offers hope for human protection...
August 7, 2017: European Journal of Internal Medicine
https://www.readbyqxmd.com/read/28795879/influence-of-different-attentional-focus-on-emg-amplitude-and-contraction-duration-during-the-bench-press-at-different-speeds
#20
Joaquin Calatayud, Jonas Vinstrup, Markus D Jakobsen, Emil Sundstrup, Juan Carlos Colado, Lars L Andersen
The purpose of this study was to investigate whether using different focus affects electromyographic (EMG) amplitude and contraction duration during bench press performed at explosive and controlled speeds. Eighteen young male individuals were familiarized with the procedure and performed the one-maximum repetition (1RM) test in the first session. In the second session, participants performed the bench press exercise at 50% of the 1RM with 3 different attentional focuses (regular focus on moving the load vs contracting the pectoralis vs contracting the triceps) at 2 speed conditions (controlled vs maximal speed)...
August 10, 2017: Journal of Sports Sciences
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