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https://www.readbyqxmd.com/read/28902109/validity-and-reliability-of-the-stages-cycling-power-meter
#1
Cyril Granier, Christophe Hausswirth, Sylvain Dorel, Le Meur Yann
PURPOSE: This study aimed to determine the validity and the reliability of the Stages power meter crank system (Boulder, United States) during several laboratory cycling tasks. METHODS: Eleven trained participants completed laboratory cycling trials on an indoor cycle fitted with SRM Professional and Stages systems. The trials consisted of an incremental test at 100W, 200W, 300W, 400W and four 7s sprints. The level of pedaling asymmetry was determined for each cycling intensity during a similar protocol completed on a Lode Excalibur Sport ergometer...
September 6, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28874722/ameliorative-effects-of-melatonin-on-dark-induced-leaf-senescence-in-gardenia-gardenia-jasminoides-ellis-leaf-morphology-anatomy-physiology-and-transcriptome
#2
Daqiu Zhao, Rong Wang, Jiasong Meng, Zhiyuan Li, Yanqing Wu, Jun Tao
Cut gardenia (Gardenia jasminoides Ellis) foliage is widely used as a vase material or flower bouquet indoors; however, insufficient indoor light accelerates its senescence, which shortens its viewing time. In this study, applying melatonin to delay gardenia leaf senescence when exposed to extremely low light condition (darkness), and the results showed that 1.0 mM was the effective concentration. At this concentration, chlorophyll contents and chlorophyll fluorescence parameters (Fv/Fm, Fv/F0 and Y(II)) increased, while the carotenoid and flavonoid contents decreased...
September 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28872380/optimizing-heat-acclimation-for-endurance-athletes-high-vs-low-intensity-training
#3
Cyril Schmit, Rob Duffield, Christophe Hausswirth, Jeanick Brisswalter, Yann Le Meur
PURPOSE: We sought to determine the effect of high- vs. low-intensity training in the heat and ensuing taper period in the heat on endurance performance. METHODS: Nineteen well-trained triathletes undertook 5 days of normal training and a 1-week taper, including either low- (HA-L, n=10) or high-intensity (HA-H, n=9) training sessions in the heat (30°C, 50% of relative humidity). A control group (n=10) reproduced their usual training in thermoneutral conditions...
September 5, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28836752/highly-flexible-multipixelated-thermosensitive-smart-windows-made-of-tough-hydrogels
#4
Thanh-Giang La, Xinda Li, Amit Kumar, Yiyang Fu, Shu Yang, Hyun-Joong Chung
In a cold night, a clear window that will become opaque while retaining the indoor heat is highly desirable for both privacy and energy efficiency. A thermally responsive material that controls both the transmittance of solar radiance (predominantly in the visible and near-infrared wavelengths) and blackbody radiation (mainly in the mid-infrared) can realize such windows with minimal energy consumption. Here, we report a smart coating made from polyampholyte hydrogel (PAH) that transforms from a transparency state to opacity to visible radiation and strengthens opacity to mid-infrared when lowering the temperature as a result of phase separation between the water-rich and polymer-rich phases...
September 27, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28810512/co-digestion-of-rice-straw-and-cow-dung-to-supply-cooking-fuel-and-fertilizers-in-rural-india-impact-on-human-health-resource-flows-and-climate-change
#5
Sophie Sfez, Steven De Meester, Jo Dewulf
Anaerobic digestion of cow dung with new feedstock such as crop residues to increase the biogas potential is an option to help overcoming several issues faced by India. Anaerobic digestion provides biogas that can replace biomass cooking fuels and reduce indoor air pollution. It also provides digestate, a fertilizer that can contribute to compensate nutrient shortage on agricultural land. Moreover, it avoids the burning of rice straw in the fields which contributes to air pollution in India and climate change globally...
December 31, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28809104/large-scale-multifunctional-electrochromic-energy-storage-device-based-on-tungsten-trioxide-monohydrate-nanosheets-and-prussian-white
#6
Zhijie Bi, Xiaomin Li, Yongbo Chen, Xiaoli He, Xiaoke Xu, Xiangdong Gao
A high-performance electrochromic-energy storage device (EESD) is developed, which successfully realizes the multifunctional combination of electrochromism and energy storage by constructing tungsten trioxide monohydrate (WO3·H2O) nanosheets and Prussian white (PW) film as asymmetric electrodes. The EESD presents excellent electrochromic properties of broad optical modulation (61.7%), ultrafast response speed (1.84/1.95 s), and great coloration efficiency (139.4 cm(2) C(-1)). In particular, remarkable cyclic stability (sustaining 82...
August 23, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28807299/seasonality-and-circadian-variation-of-microfilaremia-in-dogs-experimentally-infected-with-dirofilaria-immitis
#7
Léonore Lovis, Mélanie Grandjean, Laurence Overney, Wolfgang Seewald, Heinz Sager
Periodicity, the cyclical rise and fall in microfilaria (mff) numbers in the peripheral blood over time, is observed in many filarial infections. It is correlated with the necessity for these larval stages to be ingested by the blood feeding vector before they can be transmitted to a new vertebrate host. Microfilariae of the dog heartworm Dirofilaria immitis have been described to show periodicity, but the circadian pattern does not seem to be consistent. Most publications describe the lowest mff-concentrations in the peripheral blood in the early morning, while the highest counts occurred either in the afternoon, in the late evening or shortly after midnight...
August 30, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28717626/muscle-fatigue-in-participants-of-indoor-cycling
#8
Ricardo de Melo Dos Santos, Flavio Costa E Costa, Thais Sepeda Saraiva, Bianca Callegari
BACKGROUND: Indoor Cycling (IC) has been gaining recognition and popularity within recent years and few studies have investigated its benefits for sedentary participants. OBJECTIVE: The aim of this study was to evaluate differences in the surface electromyography (sEMG) variables, heart rate (HR), and subjective effort in sedentary participants while they performed an IC session and to compare their results with the trained subjects, to answer the question: Are trained cyclists less susceptible to muscle fatigue, since it is expected that they make less effort? DESIGN: Twenty-six volunteers were split into two groups according to their fitness status and weekly training load...
January 2017: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/28704880/left-ventricular-adaptation-to-12-weeks-of-indoor-cycling-at-the-gym-in-untrained-females
#9
Kristofer Hedman, Niclas Bjarnegård, Toste Länne
Cross-sectional studies provide evidence of larger cardiac dimensions and mass in endurance trained than in untrained females. Much less is known regarding adaptations in cardiac function following training in untrained subjects. We aimed to study left ventricular (LV) adaptation to indoor cycling in previously untrained females, in regard of LV dimensions, mass and function. 42 sedentary females were divided into 2 equally sized groups, either training indoor cycling at regular classes at a local gym for 12 weeks, in average 2...
September 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/28695834/sand-flies-and-their-control-methods
#10
Hüseyin Çetin, Yusuf Özbel
The main aim of managing arthropod vectors that carry the disease agents is interrupting the infection cycle. Therefore, the management of the disease implies that all precautions related to all elements (i.e., human, arthropod vector, and reservoir) in the infection cycle need to be taken. There are important points that need to be considered while dealing with sand flies (Diptera: Psychodidae: Phlebotominae), which in many regions worldwide, particularly in tropical and subtropical areas, are vectors of diseases such as leishmaniasis and sand fly fever and are the arthropods of the infection cycle...
June 2017: Türkiye Parazitolojii Dergisi
https://www.readbyqxmd.com/read/28689280/analysis-of-toxicity-effects-of-di-2-ethylhexyl-phthalate-exposure-on-human-bronchial-epithelial-16hbe-cells
#11
Yue Ma, Yinsheng Guo, Shuang Wu, Ziquan Lv, Qian Zhang, Xing Xie, Yuebin Ke
Recent studies have indicated that Di-(2-ethylhexyl) phthalate (DEHP), the most commonly used plasticizer in daily-life products, could be dispersed in indoor air and induce human exposure via inhalation. DEHP has been reported to have effects on the respiratory system in both animal and human researches. The toxicity effects of DEHP exposure on cell proliferation, cell cycle progression, apoptosis, global DNA methylation and the expression levels of DNA methyltransferases (DNMTs) were investigated in this study, using human epithelial cell line 16HBE as an in vitro model...
July 8, 2017: Cytotechnology
https://www.readbyqxmd.com/read/28682605/characterizing-aggregated-exposure-to-primary-particulate-matter-recommended-intake-fractions-for-indoor-and-outdoor-sources
#12
Peter Fantke, Olivier Jolliet, Joshua S Apte, Natasha Hodas, John Evans, Charles J Weschler, Katerina S Stylianou, Matti Jantunen, Thomas E McKone
Exposure to fine particulate matter (PM2.5) from indoor and outdoor sources is a leading environmental contributor to global disease burden. In response, we established under the auspices of the UNEP/SETAC Life Cycle Initiative a coupled indoor-outdoor emission-to-exposure framework to provide a set of consistent primary PM2.5 aggregated exposure factors. We followed a matrix-based mass balance approach for quantifying exposure from indoor and ground-level urban and rural outdoor sources using an effective indoor-outdoor population intake fraction and a system of archetypes to represent different levels of spatial detail...
July 19, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28678622/carbohydrate-mouth-rinse-does-not-affect-performance-during-a-60-min-running-race-in-women
#13
Costas Chryssanthopoulos, Christos Ziaras, Tanja Oosthuyse, Ioannis Lambropoulos, Paradisis Giorgios P, Elias Zacharogiannis, Anastassios Philippou, Maria Maridaki
This study examined the effect of carbohydrate mouth rinsing on endurance running performance in women. Fifteen female recreational endurance runners, who used no oral contraceptives, ran two races of 1-h duration on an indoor track (216-m length) at 18:00 h after an 8-h fast with a 7-days interval between races, corresponding to the 3(rd)-10th day of each premenopausal runner's menstrual cycle, or any day for the postmenopausal runners. In a double-blind random order, participants rinsed their mouth with 25 ml of either a 6...
July 5, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28661666/a-fine-tuned-metal-organic-framework-for-autonomous-indoor-moisture-control
#14
Rasha G AbdulHalim, Prashant M Bhatt, Youssef Belmabkhout, Aleksander Shkurenko, Karim Adil, Leonard J Barbour, Mohamed Eddaoudi
Conventional adsorbents, namely zeolites and silica gel, are often used to control humidity by adsorbing water; however, adsorbents capable of the dual functionality of humidification and dehumidification, offering the desired control of the moisture level at room temperature, have yet to be explored. Here we report Y-shp-MOF-5, a hybrid microporous highly connected rare-earth-based metal-organic framework (MOF), with dual functionality for moisture control within the recommended range of relative humidity (45%-65% RH) set by the American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE)...
July 28, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28659561/detection-of-fungi-from-an-indoor-environment-using-loop-mediated-isothermal-amplification-lamp-method
#15
Takako Nakayama, Takashi Yamazaki, Ayaka Yo, Kazuya Tone, Mohamed Mahdi Alshahni, Ryuichi Fujisaki, Koichi Makimura
 Loop-mediated isothermal amplification (LAMP) is a useful DNA detection method with high specificity and sensitivity. The LAMP reaction is carried out within a short time at a constant temperature without the need for thermal cycling. We developed a LAMP primer set for detecting a wide range of fungi by aligning the sequences of the large subunit ribosomal RNA gene of Candida albicans (Ascomycota), Cryptococcus neoformans (Basidiomycota), and Mucor racemosus (Mucorales). The threshold of C. albicans rDNA as template with our LAMP primer set was in the range of 10-100 copies per a reaction...
2017: Biocontrol Science
https://www.readbyqxmd.com/read/28642231/secondhand-smoke-exposure-among-community-dwelling-adult-cancer-survivors-in-the-united-states-1999-2012
#16
Oladimeji Akinboro, Odunayo Olorunfemi, Prasanta Basak, Elizabeth Phillips, Daniel Pomerantz, Bernard Bernhardt, Rasim Gucalp, Stephen Jesmajian, Jamie S Ostroff
Background: Little is known about the prevalence of secondhand smoke exposure (SHSe) among cancer survivors. We sought to determine the prevalence, trends, and correlates of SHSe among nonsmoking adult cancer survivors in the United States.Methods: Interview and serum cotinine data for nonsmoking adults, age 20 years and older, with a history of cancer (N = 686) were obtained from consecutive two-year cross-sectional cycles of the National Health and Nutrition Examination Survey from 1999 to 2012. SHSe was defined as serum cotinine 0...
August 2017: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/28632054/middle-finger-and-ball-movements-around-ball-release-during-baseball-fastball-pitching
#17
Tomoyuki Matsuo, Tsutomu Jinji, Daisaku Hirayama, Daiki Nasu, Hiroki Ozaki, Daisuke Kumagawa
The objectives of this study were to investigate middle finger movements and dynamics of ball movements around the instant of ball release during baseball pitching. Baseball pitching from an indoor mound among 14 semi-professional pitchers was captured using a motion capture system with 16 high-speed cameras (1,000 Hz). Kinematics of middle finger joints, ball rotation, and force applied to the ball were calculated. The proximal and distal interphalangeal joints continued to extend until the instant of ball release, then abruptly flexed...
February 28, 2017: Sports Biomechanics
https://www.readbyqxmd.com/read/28618783/pulsed-light-emitting-diodes-for-a-higher-phytochemical-level-in-microgreens
#18
Viktorija Vaštakaitė, Akvilė Viršilė, Aušra Brazaitytė, Giedrė Samuolienė, Julė Jankauskienė, Algirdas Novičkovas, Pavelas Duchovskis
A novel research of pulsed light-emitting diode (LED) lighting versus continuous lighting was conducted by analyzing phytochemical levels in microgreens. Red pak choi (Brassica rapa var. chinensis), mustard (Brassica juncea L.), and tatsoi (Brassica rapa var. rosularis) were grown indoors under HPS lamps supplemented with monochromatic (455, 470, 505, 590, and 627 nm) LEDs [total photosynthetic photon flux density (PPFD) of 200 ± 10 μmol m(-2) s(-1), for 16 h day(-1)]. For pulsed light treatments, the frequencies at 2, 32, 256, and 1024 Hz with a duty cycle of 50% monochromatic LEDs were applied...
August 9, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28574076/bushy-sphere-dendrites-with-husk-shaped-branches-axially-spreading-out-from-the-core-for-photo-catalytic-oxidation-remediation-of-toxins
#19
Mohamed A Shenashen, Satoshi Kawada, Mahmoud M Selim, Wafaa M Morsy, Hitoshi Yamaguchi, Abdulaziz A Alhamid, Naoki Ohashi, Izumi Ichinose, Sherif A El-Safty
This work describes densely interlinked bushy "tree-like chains" characterized by neatly branched sphere dendrites (bushy sphere dendrites, BSD) with long fan-like, husk-shaped branching paths that extend longitudinally from the core axis of the {110}-exposed plane. We confirmed that the hierarchical dendrite surfaces created bowls of swirled caves along the tree-tube in the mat-like branches. These surfaces had high-index catalytic site facets associated with the formation of ridges/defects on the dominant {110}-top-cover surface...
June 2, 2017: Nanoscale
https://www.readbyqxmd.com/read/28545418/maternal-child-co-participation-in-physical-activity-related-behaviours-prevalence-and-cross-sectional-associations-with-mothers-and-children-s-objectively-assessed-physical-activity-levels
#20
Jill A Hnatiuk, Ellen DeDecker, Kylie D Hesketh, Greet Cardon
BACKGROUND: Co-participation in physical activity may be a useful strategy for increasing physical activity in mothers and their young children, yet little empirical evidence exists on this topic for young families. This study aimed to identify the prevalence of mother-child co-participation in physical activity and examine the association between co-participatory behaviours and objectively-assessed physical activity in young children and their mothers. METHODS: One-hundred twenty-three 4-6 year-old children and their mothers were recruited from preschools in Belgium between November 2010 and January 2011...
May 25, 2017: BMC Public Health
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