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Hamidreza Majidiani, Sahar Dalvand, Ahmad Daryani, Ma de la Luz Galvan-Ramirez, Masoud Foroutan-Rad
INTRODUCTION: The global protozoan parasite, Toxoplasma gondii, infects many warm-blooded animals and humans by employing different transmission routes. There have been some recent studies on the probable relevance of infectious agents and diabetes. Therefore, we conducted a systematic review and meta-analysis to identify the possible association between chronic toxoplasmosis and diabetes mellitus. METHODS: This study was conducted following the general methodology recommended for systematic reviews and meta-analysis...
October 18, 2016: Brazilian Journal of Infectious Diseases
Tobias Dornheim, Simon Groth, Travis Sjostrom, Fionn D Malone, W M C Foulkes, Michael Bonitz
We perform ab initio quantum Monte Carlo (QMC) simulations of the warm dense uniform electron gas in the thermodynamic limit. By combining QMC data with the linear response theory, we are able to remove finite-size errors from the potential energy over the substantial parts of the warm dense regime, overcoming the deficiencies of the existing finite-size corrections by Brown et al. [Phys. Rev. Lett. 110, 146405 (2013)]. Extensive new QMC results for up to N=1000 electrons enable us to compute the potential energy V and the exchange-correlation free energy F_{xc} of the macroscopic electron gas with an unprecedented accuracy of |ΔV|/|V|,|ΔF_{xc}|/|F|_{xc}∼10^{-3}...
October 7, 2016: Physical Review Letters
Hui Zhang, Enli Wang, Daowei Zhou, Zhongkui Luo, Zhengxiang Zhang
Global warming influences a series of ecological processes and ecosystems' stability. Although comprehensive studies have been done to investigate responses of various ecosystem processes to rising air temperatures, less is known about changes in soil temperatures and their impact on below-ground processes, particularly in deep layers. Herein, we used 50 y of temperature data (1962-2011) from 360 sites in China to assess spatio-temporal changes in soil temperatures from the surface to a depth of 3.20 m. We determined, apparently for the first time, that soil surface temperature increased 31% more than air temperature, potentially leading to more carbon release to the atmosphere than predicted...
October 21, 2016: Scientific Reports
Stephen F Poropat, Philip D Mannion, Paul Upchurch, Scott A Hocknull, Benjamin P Kear, Martin Kundrát, Travis R Tischler, Trish Sloan, George H K Sinapius, Judy A Elliott, David A Elliott
Australian dinosaurs have played a rare but controversial role in the debate surrounding the effect of Gondwanan break-up on Cretaceous dinosaur distribution. Major spatiotemporal gaps in the Gondwanan Cretaceous fossil record, coupled with taxon incompleteness, have hindered research on this effect, especially in Australia. Here we report on two new sauropod specimens from the early Late Cretaceous of Queensland, Australia, that have important implications for Cretaceous dinosaur palaeobiogeography. Savannasaurus elliottorum gen...
October 20, 2016: Scientific Reports
Simon Steib, Peter Zahn, Christine Zu Eulenburg, Klaus Pfeifer, Astrid Zech
BACKGROUND: Female handball athletes are at a particular risk of sustaining lower extremity injuries. The study examines time-dependent adaptations of static and dynamic balance as potential injury risk factors to a specific warm-up program focusing on neuromuscular control. METHODS: Fourty one (24.0 ± 5.9 years) female handball athletes were randomized to an intervention or control group. The intervention group implemented a 15-min specific neuromuscular warm-up program, three times per week for eleven weeks, whereas the control group continued with their regular warm-up...
2016: BMC Sports Science, Medicine and Rehabilitation
Andreas M Fichter, Lucas M Ritschl, Andrea Rau, Claudia Schwarzer, Achim von Bomhard, Stefan Wagenpfeil, Klaus-Dietrich Wolff, Thomas Mücke
The warm ischaemia time of microvascular free flaps is limited. Incalculable events, such as lack of adequate recipient vessels or intraoperative medical emergencies, can lead to prolonged ischaemia and potentially to flap loss. In this study, critically perfused ischaemic or congested flaps were temporarily perfused with an extracorporeal perfusion system until anastomosis could be commenced. Temporary extracorporeal perfusion was performed in 8 radial forearm flaps for 147 ± 52 (range 77-237) minutes. Flap perfusion was assessed using Indocyanine Green fluorescence angiography and combined laser Doppler flowmetry and remission spectroscopy...
September 23, 2016: Journal of Cranio-maxillo-facial Surgery
Hongpeng Lai, Shuyong Wang, Yongli Xie
In the New Qidaoliang Tunnel (China), a rear-end collision of two tanker trunks caused a fire. To understand the damage characteristics of the tunnel lining structure, in situ investigation was performed. The results show that the fire in the tunnel induced spallation of tunnel lining concrete covering 856 m³; the length of road surface damage reached 650 m; the sectional area had a maximum 4% increase, and the mechanical and electrical facilities were severely damaged. The maximum area loss happened at the fire spot with maximum observed concrete spallation up to a thickness of 35...
October 15, 2016: International Journal of Environmental Research and Public Health
Urtzi Leibar, Inmaculada Pascual, Fermín Morales, Ana Aizpurua, Olatz Unamunzaga
BACKGROUND: Global warming influence on grape quality is a great concern among grapegrowers and enologists. The effects of simulated year 2100 expected CO2 , T and RH conditions (FCC; 700 µmol CO2 /mol air, 28/18 °C day/night and 33/53% RH, day/night) vs. the current condition situation (Curr; 390 µmol CO2 /mol air, 24/14 °C and 45/65% RH); well-irrigated vs. expected future water deficits and three soils with different clay contents (41, 19 and 8%) on yield and berry quality of grapevine cv...
October 17, 2016: Journal of the Science of Food and Agriculture
Dennis Baldocchi, Youngryel Ryu, Trevor Keenan
A growing literature is reporting on how the terrestrial carbon cycle is experiencing year-to-year variability because of climate anomalies and trends caused by global change. As CO 2 concentration records in the atmosphere exceed 50 years and as satellite records reach over 30 years in length, we are becoming better able to address carbon cycle variability and trends. Here we review how variable the carbon cycle is, how large the trends in its gross and net fluxes are, and how well the signal can be separated from noise...
2016: F1000Research
Rohit Tejwani, Hsin-Hsiao S Wang, Jessica C Lloyd, Paul J Kokorowski, Caleb P Nelson, Jonathan C Routh
BACKGROUND: The advent of online task-distribution has opened a new avenue to efficiently gather community perspectives needed for utility estimation. Methodological consensus for estimating pediatric utilities is lacking, with disagreement over whom to sample, what perspective (patient vs. parent), and whether instrument-induced anchoring bias is significant. We sought to determine what methodological factors potentially impact utility estimates for vesicoureteral reflux (VUR). DESIGN: Cross-sectional surveys using a time-trade-off (TTO) instrument were conducted via Amazon's Mechanical Turk online interface; respondents were randomized to answer questions from child, parent, or dyad perspectives on the utility of a VUR health state and one of three "warm-up" scenarios (paralysis, common cold, none) prior to a VUR scenario...
October 13, 2016: Journal of Urology
L Meng, N Matsuno, K Watanabe, M Furukori, H Obara, H Bochimoto, T Watanabe, H Fukukawa
BACKGROUND: The shortage of organ donors is a universal problem. Use of grafts from donors after cardiac death would greatly contribute to the expansion of the donor organ pool. The two major methods of preservation are cold storage and machine perfusion (MP) preservation, and each has its own advantages. Several studies have reported the relative merits of MP for the preservation for grafts from donors after cardiac death. In this study, we used scanning electron microscopy (SEM) to assess the damage to the liver between hypothermic and rewarming preservation conditions...
September 2016: Transplantation Proceedings
Pierluca Vitale, Noemi Arena, Fabrizio Di Gregorio, Umberto Arena
The study investigates the potential environmental impacts related to the end-of-life phase of a residential building, identified in a multifamily dwelling of three levels, constructed in the South of Italy by utilizing conventional materials and up-to-date procedures. An attributional life cycle assessment has been utilised to quantify the contributions of each stage of the end-of-life phase, with a particular attention to the management of the demolition waste. The investigation takes into account the selective demolition, preliminary sorting and collection of main components of the building, together with the processes of sorting, recycling and/or disposal of main fractions of the demolition waste...
October 11, 2016: Waste Management
Austyn L Nealer, Dustin D Dunnick, Kylie K Malyszek, Megan A Wong, Pablo B Costa, Jared W Coburn, Lee E Brown
Speed is a crucial element an athlete must possess to be successful. In soccer, the ability to accelerate faster than your opponent can result in being first to reach a ball on a breakaway or stopping a counter attack. A unique way to train explosive movements is to evoke postactivation potentiation (PAP) in the working muscles. Traditionally, an overload stimulus with a long rest period is used, but a model utilizing an overspeed stimulus with shorter rest periods is less understood. Therefore, the purpose of this study was to determine the acute effects of varied rest intervals following assisted sprinting on bodyweight sprint time...
October 6, 2016: Journal of Strength and Conditioning Research
A Ng, P Sterne, S Hansen, V Recoules, Z Chen, Y Y Tsui, B Wilson
Using recently obtained ac conductivity data we have derived dc conductivity together with free electron density and electron momentum relaxation time in two-temperature warm dense gold with energy density up to 4.1 MJ/kg (0.8×10^{11}J/m^{3}). The derivation is based on a Drude interpretation of the dielectric function that takes into account contributions of intraband and interband transitions as well as atomic polarizability. The results provide valuable benchmarks for assessing the extended Ziman formula for electrical resistivity and an accompanying average atom model...
September 2016: Physical Review. E
A Denoeud, S Mazevet, F Guyot, F Dorchies, J Gaudin, A Ravasio, E Brambrink, A Benuzzi-Mounaix
The structural properties of liquid silica at high pressure and moderate temperature conditions, also referred to as the warm dense matter regime, were investigated using time-resolved K-edge x-ray absorption spectroscopy and ab initio calculations. We used a nanosecond laser beam to compress uniformly a solid SiO_{2} target and a picosecond laser beam to generate a broadband x-ray source. We obtained x-ray absorption spectra at the Si K edge over a large pressure-temperature domain to probe the liquid phase up to 3...
September 2016: Physical Review. E
Cassiano Moro Piekarski, Antonio Carlos de Francisco, Leila Mendes da Luz, João Luiz Kovaleski, Diogo Aparecido Lopes Silva
Brazil is one of the largest producers of medium-density fibreboard (MDF) in the world, and also the MDF has the highest domestic consumption and production rate in the country. MDF applications are highlighted into residential and commercial furniture design and also a wide participation in the building sector. This study aimed to propose ways of improving the environmental cradle-to-gate life-cycle of one cubic meter MDF panel by means of a life-cycle assessment (LCA) study. Complying with requirements of ISO 14040 and 14,044 standards, different MDF manufacturing scenarios were modelled using Umberto® v...
October 10, 2016: Science of the Total Environment
Hsuan Su, Nai-Jen Chang, Wen-Lan Wu, Lan-Yuen Guo, I-Hua Chu
CONTEXT: Foam rolling has been proposed to improve muscle function, performance, and joint range of motion (ROM). However, whether a foam rolling protocol can be adopted as a warm-up to improve flexibility and muscle strength is unclear. OBJECTIVE: To examine and compare the acute effects of foam rolling, static stretching, and dynamic stretching used as part of warm-up on flexibility and muscle strength of knee flexion and extension. DESIGN: Crossover study...
October 13, 2016: Journal of Sport Rehabilitation
Gert Ulrich, Mario Parstorfer
PURPOSE: There is limited data on postactivation potentiation (PAP) effects following plyometric conditioning contractions (CC), especially in the upper body. Therefore, the study compared plyometric CC with concentric-eccentric and eccentric CC aiming to improve upper body power performance due to a PAP-effect. METHODS: Sixteen resistance-trained males completed three experimental trials in a randomized order which composed of either a plyometric (PLY), a concentric-eccentric (CON) or an eccentric-only (ECC) CC...
October 13, 2016: International Journal of Sports Physiology and Performance
Sander P M Ganzevles, Arnold de Haan, Peter J Beek, Hein A M Daanen, Martin J Truijens
For training to be optimal, daily training load has to be adapted to the momentary status of the individual athlete, which is often difficult to establish. Therefore, the present study was performed to investigate the predictive value of heart rate recovery (HRR) during a standardized warm-up for training load. Training load was quantified by the variation in heart rate during standardized training in competitive swimmers. Eight female and five male swimmers of Dutch national level participated in the study...
October 13, 2016: International Journal of Sports Physiology and Performance
Yuhei Hamaguchi, Akira Mori, Yasuhiro Fujimoto, Takashi Ito, Taku Iida, Shintaro Yagi, Hideaki Okajima, Toshimi Kaido, Shinji Uemoto
BACKGROUND: The present study aimed to investigate the impact of the duration of hepatic pedicle clamping (HPC) on tumor growth after major hepatectomy in a rat model. METHODS: Rats were divided into 4 groups according to the length of HPC during 70% partial hepatectomy followed by N1S1 tumor cell implantation: group 1, without HPC; group 2, with 5-min HPC; group 3, 10-min HPC; and group 4, 15-min HPC. At three weeks after tumor cell implantation, liver tumor growth and its possible mechanisms were investigated...
October 13, 2016: Journal of Hepato-biliary-pancreatic Sciences
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