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https://www.readbyqxmd.com/read/28933843/cspb0-9sn0-1ibr2-based-all-inorganic-perovskite-solar-cells-with-exceptional-efficiency-and-stability
#1
Jia Liang, Peiyang Zhao, Caixing Wang, Yanrong Wang, Yi Hu, Guoyin Zhu, Lianbo Ma, Jie Liu, Zhong Jin
The emergence of perovskite solar cells (PSCs) has generated enormous interests in the photovoltaic research community. Recently, cesium metal halides (CsMX3, M = Pb or Sn; X = I, Br, Cl or mixed halides) as a class of inorganic perovskites showed great promise for PSCs and other optoelectronic devices. However, CsMX3-based PSCs usually exhibit lower power conversion efficiencies (PCEs) than organic-inorganic hybrid PSCs, due to the unfavorable bandgaps. Herein, a novel mixed-Pb/Sn mixed-halide inorganic perovskite, CsPb0...
September 21, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28933745/effects-of-six-week-ginkgo-biloba-supplementation-on-aerobic-performance-blood-pro-antioxidant-balance-and-serum-brain-derived-neurotrophic-factor-in-physically-active-men
#2
Ewa Sadowska-Krępa, Barbara Kłapcińska, Ilona Pokora, Przemysław Domaszewski, Katarzyna Kempa, Tomasz Podgórski
Extracts of Ginkgo biloba leaves, a natural source of flavonoids and polyphenolic compounds, are commonly used as therapeutic agents for the improvement of both cognitive and physiological performance. The present study was aimed to test the effects of a six-week supplementation with 160 mg/day of a standardized extract of Ginkgo biloba or a matching placebo on aerobic performance, blood antioxidant capacity, and brain-derived neurotrophic factor (BDNF) level in healthy, physically active young men, randomly allocated to two groups (n = 9 each)...
July 26, 2017: Nutrients
https://www.readbyqxmd.com/read/28931996/a-modified-seated-side-tapping-test-in-which-the-arms-are-crossed-also-reflects-gait-function-in-community-dwelling-elderly
#3
Satoshi Fuchioka, Akira Iwata, Yumi Higuchi, Mari Miyake, Seiji Kanda, Toshimasa Nishiyama
[Purpose] Seated side tapping test (SST) performance is associated with mobility impairment in the elderly. Although this test was developed to assess trunk function, interpretation of its results may be confounded by the upper-limb movements in its protocol. Here, this study aimed to validate the association between trunk function and gait function by means of the Arms Crossed SST (AC-SST), a modified version of the SST in which the arms are crossed over the chest, to exclude the effects of the upper limbs...
September 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28931784/mobilized-muse-cells-after-acute-myocardial-infarction-predict-cardiac-function-and-remodeling-in-the-chronic-phase
#4
Toshiki Tanaka, Kazuhiko Nishigaki, Shingo Minatoguchi, Takahide Nawa, Yoshihisa Yamada, Hiromitsu Kanamori, Atsushi Mikami, Hiroaki Ushikoshi, Masanori Kawasaki, Mari Dezawa, Shinya Minatoguchi
BACKGROUND: Multilineage differentiating stress-enduring (Muse) cells are SSEA3(+)and CD105(+)double-positive pluripotent-like stem cells. We aimed to examine the mobilization of Muse cells into peripheral blood after acute myocardial infarction (AMI) and their effects on left ventricular (LV) function and remodeling.Methods and Results:In 79 patients with AMI, 44 patients with coronary artery disease (CAD), and 64 normal subjects (Control), we measured the number of Muse cells in the peripheral blood by fluorescence-activated cell sorting...
September 20, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28930640/age-related-decline-in-endurance-running-performance-an-example-of-a-multiple-world-records-holder
#5
Romuald Lepers, Thomas Cattagni
This study examined the age-related decline in endurance running performance of one of the greatest master runners ever, Ed Whitlock. His running performances from 1500 m to marathon were analyzed for five periods of 5 years from 65-69 years to 85-89 years. Despite exceptional running performances for his advanced age, the rate of decline in his performances increased after 80 years and was drastically amplified after 85 years.
September 20, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28930627/fitness-body-composition-and-vascular-health-in-adolescent-and-young-adult-survivors-of-paediatric-brain-cancer-and-cranial-radiotherapy
#6
Treya M Long, Shoshana R Rath, Tessa D Maroni, Karen E Wallman, Helen C Atkinson, Nicholas G Gottardo, Catherine H Cole, Catherine S Choong, Louise H Naylor
Background Survivors of paediatric brain cancer and/or cranial radiotherapy (CRT) are at an increased risk of developing serious comorbidities. Established risk factors for chronic disease include central obesity, endothelial abnormalities and diminished fitness. Objectives Here we characterised anthropometry, body composition, bone mineral density (BMD), heart rate (HR), blood pressure (BP), endothelial function, muscular strength and endurance and aerobic fitness in adolescent and young adult (AYA) survivors...
September 20, 2017: International Journal of Adolescent Medicine and Health
https://www.readbyqxmd.com/read/28925963/on-the-role-of-processing-parameters-in-producing-recycled-aluminum-aa6061-based-metal-matrix-composite-mmc-alr-prepared-using-hot-press-forging-hpf-process
#7
Azlan Ahmad, Mohd Amri Lajis, Nur Kamilah Yusuf
Solid-state recycling, which involves the direct recycling of scrap metal into bulk material using severe plastic deformation, has emerged as a potential alternative to the conventional remelting and recycling techniques. Hot press forging has been identified as a sustainable direct recycling technique that has fewer steps and maintains excellent material performance. An experimental investigation was conducted to explore the hardness and density of a recycled aluminum-based metal matrix composite by varying operating temperature and holding time...
September 19, 2017: Materials
https://www.readbyqxmd.com/read/28923947/tpc2-polymorphisms-associated-with-a-hair-pigmentation-phenotype-in-humans-result-in-gain-of-channel-function-by-independent-mechanisms
#8
Yu-Kai Chao, Verena Schludi, Cheng-Chang Chen, Elisabeth Butz, O N Phuong Nguyen, Martin Müller, Jens Krüger, Claudia Kammerbauer, Manu Ben-Johny, Angelika M Vollmar, Carola Berking, Martin Biel, Christian A Wahl-Schott, Christian Grimm
Two-pore channels (TPCs) are endolysosomal cation channels. Two members exist in humans, TPC1 and TPC2. Functional roles associated with the ubiquitously expressed TPCs include VEGF-induced neoangiogenesis, LDL-cholesterol trafficking and degradation, physical endurance under fasting conditions, autophagy regulation, the acrosome reaction in sperm, cancer cell migration, and intracellular trafficking of pathogens such as Ebola virus or bacterial toxins (e.g., cholera toxin). In a genome-wide association study for variants associated with human pigmentation characteristics two coding variants of TPC2, rs35264875 (encoding M484L) and rs3829241 (encoding G734E), have been found to be associated with a shift from brown to blond hair color...
September 18, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28922212/equity-of-physical-characteristics-between-adolescent-males-and-females-participating-in-single-or-mixed-gender-sport
#9
L M Krause, G A Naughton, A C Benson, S Tibbert
PURPOSE: Policies on single or mixed sex junior sports participation continue to be challenged publically and legally. Often challenges relate to perceptions of size and performance variability between adolescent males and females, yet the evidence base behind these challenges lacks recent review and rigor. METHODS: Physical performance was compared between males and females from two groups of younger (<13 years, n = 109, 67% females, 33% males) and older (>13 years, n = 108, 43% females, 57% males) adolescents...
September 12, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28919930/effects-of-12-weeks-of-nordic-walking-and-xco-walking-training-on-the-endurance-capacity-of-older-adults
#10
Tobias Morat, Jenny Krueger, Angus Gaedtke, Manuela Preuss, Joachim Latsch, Hans-Georg Predel
BACKGROUND: Several studies have already examined the positive effects of various forms of endurance training in patient groups and in healthy adults up to 60 years old. The aim of this study was to analyse the effects of Nordic Walking (NW) and XCO Walking (XCO) training on endurance capacity in healthy older adults, aged 60 years and older. METHODS: Twenty-three older participants (mean age: 69.9 ± 5.4 years) were randomly assigned to either the NW group or the XCO group...
2017: European Review of Aging and Physical Activity
https://www.readbyqxmd.com/read/28917232/compressed-food-with-added-functional-oligopeptides-improves-performance-during-military-endurance-training
#11
Zhi-Qiang Zheng, Zhan-Hui Geng, Jia-Xi Liu, Shun-Tang Guo
BACKGROUND AND OBJECTIVES: Oligosaccharide or oligopeptide supplementation may have a significant impact on endurance performance. This study evaluated the effects of adding maltooligosaccharides (MO) or soy oligopeptides (SO) to compressed food (CF) on the physical response of soldiers to daily military training. METHODS AND STUDY DESIGN: Twelve soldiers were randomized to four diet groups: regular meals, CF, CFMO, and CFSO (crossover design). They participated in exercise tests including 90 minutes running at 55-65% VO2max and exhaustive running...
2017: Asia Pacific Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28917030/the-role-of-intra-session-exercise-sequence-in-the-interference-effect-a-systematic-review-with-meta-analysis
#12
REVIEW
Lee Eddens, Ken van Someren, Glyn Howatson
BACKGROUND: There is a necessity for numerous sports to develop strength and aerobic capacity simultaneously, placing a significant demand upon the practice of effective concurrent training methods. Concurrent training requires the athlete to perform both resistance and endurance exercise within a training plan. This training paradigm has been associated with an 'interference effect', with attenuated strength adaptation in comparison to that following isolated resistance training. The effectiveness of the training programme rests on the intricacies of manipulating acute training variables, such as exercise sequence...
September 15, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28914562/the-effect-of-regular-aquatic-exercise-on-blood-pressure-a-meta-analysis-of-randomized-controlled-trials
#13
Yutaka Igarashi, Yoshie Nogami
Background No meta-analysis has examined the effect of regular aquatic exercise on blood pressure. The purpose of this study was to perform a meta-analysis to evaluate the effects of regular aquatic exercise on blood pressure. Design A meta-analysis of randomized controlled trials. Methods Databases were searched for literature published up to April 2017. The randomized controlled trials analysed involved healthy adults, an intervention group that only performed aquatic exercise and a control group that did not exercise, no other intervention, and trials indicated mean systolic blood pressure or diastolic blood pressure...
January 1, 2017: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/28912731/long-term-athletic-development-in-youth-alpine-ski-racing-the-effect-of-physical-fitness-ski-racing-technique-anthropometrics-and-biological-maturity-status-on-injuries
#14
Lisa Müller, Carolin Hildebrandt, Erich Müller, Christian Fink, Christian Raschner
Alpine ski racing is known to be a sport with a high risk of injuries. Because most studies have focused mainly on top-level athletes and on traumatic injuries, limited research exists about injury risk factors among youth ski racers. The aim of this study was to determine the intrinsic risk factors (anthropometrics, biological maturity, physical fitness, racing technique) for injury among youth alpine ski racers. Study participants were 81 youth ski racers attending a ski boarding school (50 males, 31 females; 9-14 years)...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28912726/cardiovascular-and-muscular-consequences-of-work-matched-interval-type-of-concentric-and-eccentric-pedaling-exercise-on-a-soft-robot
#15
Martin Flück, Rebekka Bosshard, Max Lungarella
Eccentric types of endurance exercise are an acknowledged alternative to conventional concentric types of exercise rehabilitation for the cardiac patient, because they reduce cardiorespiratory strain due to a lower metabolic cost of producing an equivalent mechanical output. The former contention has not been tested in a power- and work-matched situation of interval-type exercise under identical conditions because concentric and eccentric types of exercise pose specific demands on the exercise machinery, which are not fulfilled in current practice...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28912657/moderate-intensity-cycling-exercise-after-upper-extremity-resistance-training-interferes-response-to-muscle-hypertrophy-but-not-strength-gains
#16
Shigeto Tomiya, Naoki Kikuchi, Koichi Nakazato
The purpose of the present study was to examine the effect of 30-min moderate intensity cycling exercise immediately after upper-body resistance training on the muscle hypertrophy and strength gain. Fourteen subjects were randomly divided between two groups. One group performed moderate intensity (55% of maximum oxygen consumption [VO2max], 30 min) cycle training immediately after arm resistance training as concurrent training (CT; n = 7, age: 21.8 ± 0.7 years, height: 1.68 ± 0.06 m, weight: 60.3 ± 7.4 kg); the second group performed the same endurance and arm RT on separate days as control group (SEP; n=7, age: 22...
September 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/28912651/manual-resistance-versus-conventional-resistance-training-impact-on-strength-and-muscular-endurance-in-recreationally-trained-men
#17
Iván Chulvi-Medrano, Tamara Rial, Juan M Cortell-Tormo, Yasser Alakhdar, Caue V La Scala Teixeira, Laura Masiá-Tortosa, Sandor Dorgo
Manual resistance training (MRT) has been widely used in the field of physical therapy. It has also been used as a strength training method due to the accommodating resistance nature of this modality. The aim of the present study was to compare the effects of an 8-week MRT program on maximum strength and muscular endurance in comparison to conventional resistance training in recreationally trained men. Twenty healthy recreationally trained male subjects were recruited and divided into a MRT training group and a conventional training (CT) group...
September 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/28911978/effect-of-12-month-resistance-and-endurance-training-on-quality-quantity-and-function-of-skeletal-muscle-in-older-adults-requiring-long-term-care
#18
Akito Yoshiko, Takashi Kaji, Hiroki Sugiyama, Teruhiko Koike, Yoshiharu Oshida, Hiroshi Akima
Older adults requiring long-term care will experience age-associated deterioration of the quality and quantity of skeletal muscle if no interventions are performed. Long-term training is considered a typical intervention method and is effective for improvement of both muscle quantity and physical function. However, how such training affects muscle quality [i.e., fat-to-muscle ratio as determined by echo intensity (EI)] in older adults requiring long-term care remains unclear. The purpose of this study was to investigate the effects of a 12-month physical training intervention on the quality and quantity of skeletal muscle, physical function, and blood chemistry in older adults requiring long-term care...
September 11, 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/28911611/antifatigue-and-increasing-exercise-performance-of-actinidia-arguta-crude-alkaloids-in-mice
#19
Yangyang Liu, Changjiang Liu
Actinidia arguta (Siebold et Zucc.) Planch. ex. Miq. is one of the most recently domesticated fruit species with increasing commercial production worldwide. It is a well-known traditional Chinese medicine and is used to reduce blood glucose and treat atopic dermatitis. In addition, it possesses antioxidant, anticancer, and antiallergic properties. In this study, we investigated the physical antifatigue and exercise performance effects of A. arguta crude alkaloids (AACA) extracted with 70% ethanol. Four groups of male Kunming mice (n = 16) were orally administered AACA at doses of 0 mg/kg/d (vehicle), 50 mg/kg/d (AACA-50), 100 mg/kg/d (AACA-100), or 200 mg/kg/d (AACA-200) for 28 days...
October 2016: Journal of Food and Drug Analysis
https://www.readbyqxmd.com/read/28905640/neurobiological-mechanisms-of-exercise-and-psychotherapy-in-depression-the-speed-study-rationale-design-and-methodological-issues
#20
Stephan Heinzel, Michael A Rapp, Thomas Fydrich, Andreas Ströhle, Christina Terán, Gunnar Kallies, Melanie Schwefel, Andreas Heissel
BACKGROUND/AIMS: Even though cognitive behavioral therapy has become a relatively effective treatment for major depressive disorder and cognitive behavioral therapy-related changes of dysfunctional neural activations were shown in recent studies, remission rates still remain at an insufficient level. Therefore, the implementation of effective augmentation strategies is needed. In recent meta-analyses, exercise therapy (especially endurance exercise) was reported to be an effective intervention in major depressive disorder...
September 1, 2017: Clinical Trials: Journal of the Society for Clinical Trials
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