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https://www.readbyqxmd.com/read/28806751/the-relative-age-effect-reversal-among-the-national-hockey-league-elite
#1
Luca Fumarco, Benjamin G Gibbs, Jonathan A Jarvis, Giambattista Rossi
Like many sports in adolescence, junior hockey is organized by age groups. Typically, players born after December 31st are placed in the subsequent age cohort and as a result, will have an age advantage over those players born closer to the end of the year. While this relative age effect (RAE) has been well-established in junior hockey and other professional sports, the long-term impact of this phenomenon is not well understood. Using roster data on North American National Hockey League (NHL) players from the 2008-2009 season to the 2015-2016 season, we document a RAE reversal-players born in the last quarter of the year (October-December) score more and command higher salaries than those born in the first quarter of the year...
2017: PloS One
https://www.readbyqxmd.com/read/28806693/persistence-of-urban-organic-aerosols-composition-decoding-their-structural-complexity-and-seasonal-variability
#2
João T V Matos, Regina M B O Duarte, Sónia P Lopes, Artur M S Silva, Armando C Duarte
Organic Aerosols (OAs) are typically defined as highly complex matrices whose composition changes in time and space. Focusing on time vector, this work uses two-dimensional nuclear magnetic resonance (2D NMR) techniques to examine the structural features of water-soluble (WSOM) and alkaline-soluble organic matter (ASOM) sequentially extracted from fine atmospheric aerosols collected in an urban setting during cold and warm seasons. This study reveals molecular signatures not previously decoded in NMR-related studies of OAs as meaningful source markers...
August 11, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28806551/effects-of-agricultural-land-use-on-fluvial-carbon-dioxide-methane-and-nitrous-oxide-concentrations-in-a-large-european-river-the-meuse-belgium
#3
A V Borges, F Darchambeau, T Lambert, S Bouillon, C Morana, S Brouyère, V Hakoun, A Jurado, H-C Tseng, J-P Descy, F A E Roland
We report a data-set of CO2, CH4, and N2O concentrations in the surface waters of the Meuse river network in Belgium, obtained during four surveys covering 50 stations (summer 2013 and late winter 2013, 2014 and 2015), from yearly cycles in four rivers of variable size and catchment land cover, and from 111 groundwater samples. Surface waters of the Meuse river network were over-saturated in CO2, CH4, N2O with respect to atmospheric equilibrium, acting as sources of these greenhouse gases to the atmosphere, although the dissolved gases also showed marked seasonal and spatial variations...
August 11, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28806548/seasonal-variation-characteristic-of-inhalable-microbial-communities-in-pm2-5-in-beijing-city-china
#4
Pengrui Du, Rui Du, Weishan Ren, Zedong Lu, Pingqing Fu
Bacteria and fungi are primary constituents of airborne microbes in fine particulate matter (PM2.5) and significantly impact human health. However, hitherto, seasonal variation and effect of air pollution on microbial community composition and structure are poorly understood. This study analyzed the bacterial and fungal composition of PM2.5 under different air pollution levels during different seasons in Beijing. We altogether collected 75PM2.5 samples during four seasons from April 2014 to January 2015, under different air pollution levels and employed high-throughput sequencing methods to analyze microbial composition...
August 11, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28806499/hibernating-little-pocket-mice-show-few-seasonal-changes-in-bone-properties
#5
Noellyn Pineda, Marjorie Owen, Claire Tucker, Sam Wojda, Stanley Kitchen, Hal Black, Seth Donahue
Periods of disuse or physical inactivity increase bone porosity and decrease bone mineral density, resulting in a loss of bone mechanical competence in many animals. Although large hibernators like bears and marmots prevent bone loss during hibernation, despite long periods of physical inactivity, some small hibernators do lose bone during hibernation. Little pocket mice (Perognathus longimembris) remain underground during winter hibernation and undergo bouts of torpor and interbout arousals, but the torpor bout duration is shorter than other rodent hibernators...
August 14, 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/28806418/seasonality-affects-dietary-diversity-of-school-age-children-in-northern-ghana
#6
Abdul-Razak Abizari, Fusta Azupogo, Miwako Nagasu, Noortje Creemers, Inge D Brouwer
BACKGROUND AND OBJECTIVES: Dietary diversity score (DDS) is relatively easy to measure and is shown to be a very useful indicator of the probability of adequate micronutrient intake. Dietary diversity, however, is usually assessed during a single period and little is known about the effect of seasonality on it. This study investigates whether dietary diversity is influenced by seasonality. METHODS: Two cross-sectional surveys were conducted in two different seasons-dry season (October 2010) and rainy season (May 2011) among the same school-age children (SAC) in two rural schools in northern Ghana...
2017: PloS One
https://www.readbyqxmd.com/read/28806410/the-influence-of-speed-abilities-and-technical-skills-in-early-adolescence-on-adult-success-in-soccer-a-long-term-prospective-analysis-using-anova-and-sem-approaches
#7
Oliver Höner, Daniel Leyhr, Augustin Kelava
Several talent development programs in youth soccer have implemented motor diagnostics measuring performance factors. However, the predictive value of such tests for adult success is a controversial topic in talent research. This prospective cohort study evaluated the long-term predictive value of 1) motor tests and 2) players' speed abilities (SA) and technical skills (TS) in early adolescence. The sample consisted of 14,178 U12 players from the German talent development program. Five tests (sprint, agility, dribbling, ball control, shooting) were conducted and players' height, weight as well as relative age were assessed at nationwide diagnostics between 2004 and 2006...
2017: PloS One
https://www.readbyqxmd.com/read/28805911/effects-of-post-weaning-growth-rate-and-puberty-induction-protocol-on-reproductive-performance-of-bos-indicus-influenced-beef-heifers
#8
P Moriel, P Lancaster, G C Lamb, J M B Vendramini, J D Arthington
A 3-yr study evaluated the effectiveness of puberty induction using exogenous reproductive hormones in beef heifers undergoing different post-weaning growth rates. On d 0 of each year, grazing Angus × Brahman heifers (60 heifers/yr) were stratified by initial BW and age (BW = 253 ± 30 kg; age = 310 ± 18 d), and randomly assigned, in a 3 × 2 factorial design, to achieve a low (LOW; 0.45 kg/d), medium (MED; 0.73 kg/d), or high (HIGH; 1.00 kg/d) growth rate from d 0 to 168 (5 heifers/pasture; 4 pastures/growth rate/yr)...
August 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28805904/higher-dominance-position-does-not-result-in-higher-reproductive-success-in-female-beef-cattle
#9
R Šárová, M Špinka, F Ceacero
The aim of this study was to investigate whether beef cows that achieve higher dominance status than their age-mates have prolonged reproductive life, increased number of offspring born and weaned, and/or heavier BW of the offspring. We also assessed whether maternal dominance rank affects the offspring sex ratio. We recorded data on 309 potential deliveries of female beef cows with known dominance status in a seasonally pastured herd over a 14-yr period and linked them with yearly records of dominance status of the cows assessed around feeding...
August 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28805901/effect-of-stocking-density-on-performance-diet-selection-total-tract-digestion-and-nitrogen-balance-among-heifers-grazing-cool-season-annual-forages
#10
B R Brunsvig, A J Smart, E A Bailey, C L Wright, E E Grings, D W Brake
Grazing annual cool-season forages after oat grain harvest in South Dakota may allow an opportunity to increase efficient use of tillable land. However, data are limited regarding effects of stocking density on diet selection, nutrient digestion, performance, and N retention by cattle grazing annual cool-season forage. Heifers were blocked by initial BW (261 ± 11.7 kg) and randomly assigned to 1 of 12 paddocks (1.1 ha) to graze a mixture of grass and brassica for 48 d. Each paddock contained 3, 4, or 5 heifers to achieve 4 replicates of each stocking density treatment...
August 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28805697/multiple-sclerosis-and-schizophrenia
#11
REVIEW
Borros M Arneth
The psychiatric and neurological aspects of health may present methodological challenges in the diagnosis and treatment of disease. This is especially true for patients whose symptoms indicate the coexistence of multiple sclerosis (MS) and schizophrenia (SCZ). These cases raise critical questions regarding the relationship between the mind and the brain. Studies have noted that patients with MS have an increased risk of developing SCZ or bipolar disorder (BD). It is suggested here that MS and a subgroup of SCZ have similar etiologies...
August 12, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28805597/the-climate-impact-on-female-acute-pyelonephritis-in-taiwan-a%C3%A2-population-based-study
#12
Jui-Ming Liu, Yu-Lung Chang, Ren-Jun Hsu, Her-Young Su, Sen-Wen Teng, Fung-Wei Chang
OBJECTIVE: Urinary tract infection (UTI) is the main reason of community-acquired infection which causes large losses in social economy. The individual as well as climate factors make changes on the incidence. Acute pyelonephritis (APN) is one of the most serious UTI in female. The object of our study is to analyze whether climate factors will have effect on the incidence of female APN in Taiwan. MATERIALS AND METHODS: This study consisted of 14,568 female patients with APN from 2001 to 2013 in Taiwan and patients with repeated APN were excluded...
August 2017: Taiwanese Journal of Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28805546/air-pollution-is-associated-to-the-multiple-sclerosis-inflammatory-activity-as-measured-by-brain-mri
#13
Roberto Bergamaschi, Andrea Cortese, Anna Pichiecchio, Francesca Gigli Berzolari, Paola Borrelli, Giulia Mallucci, Valentina Bollati, Alfredo Romani, Guido Nosari, Silvia Villa, Cristina Montomoli
BACKGROUND: Some environmental factors have been already associated to increased risk of multiple sclerosis (MS), but it is plausible that additional factors might play a role. OBJECTIVE: To investigate in MS patients the relationship between inflammatory activity, detected by brain magnetic resonance imaging (MRI) with gadolinium (Gd), and air pollution, namely, particulate matters with diameter less than 10 μm (PM10). METHODS: We analyzed from 52 remitting MS patients 226 brain MRIs, 34% with (Gd+MRI) and 66% without (Gd-MRI) T1-Gd-enhancing lesions...
August 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28805338/direct-and-indirect-effects-of-episodic-frost-on-plant-growth-and-reproduction-in-subalpine-wildflowers
#14
Gabriella L Pardee, David W Inouye, Rebecca E Irwin
Frost is an important episodic event that damages plant tissues through the formation of ice crystals at or below freezing temperatures. In montane regions, where climate change is expected to cause earlier snowmelt but may not change the last frost-free day of the year, plants that bud earlier might be directly impacted by frost through damage to flower buds and reproductive structures. However, the indirect effects of frost mediated through changes in plant-pollinator interactions have rarely been explored...
August 14, 2017: Global Change Biology
https://www.readbyqxmd.com/read/28805243/factors-associated-with-acceptance-of-pandemic-flu-vaccine-by-healthcare-professionals-in-spain-2009-2010
#15
Tania Fernández-Villa, Antonio J Molina, Nuria Torner, Jesus Castilla, Jenaro Astray, Susana García-Gutiérrez, José María Mayoral, Sonia Tamames, Ángela Domínguez, Vicente Martín
The A(H1N1)pdm09 influenza virus reached pandemic level in Spain in 2009, prompting a national vaccination campaign. To avoid transmission to patients, healthcare professionals' vaccination against pandemic influenza is crucial. The main objective of this study was to analyze factors associated with the failure by healthcare professionals to accept the pandemic vaccination in 2009. A cross-sectional survey was conducted of healthcare professionals in seven of Spain's autonomous regions. A questionnaire was used to collect information about personal and professional details, the respondents' flu vaccination status in the 2008-2009 and 2009-2010 seasons (seasonal and pandemic vaccines), and their knowledge and attitudes...
August 14, 2017: Research in Nursing & Health
https://www.readbyqxmd.com/read/28804860/temperature-drop-and-the-risk-of-asthma-a-systematic-review-and-meta-analysis
#16
Xiaowei Cong, Xijin Xu, Yuling Zhang, Qihua Wang, Long Xu, Xia Huo
The relationship between asthma and temperature changes remains controversial. The aim of this study was to investigate the association between temperature changes and the risk of asthma. A total of 26 studies (combined total number of subjects N > 26 million), covering 13 countries and Costa Rica, were identified by using a series of keywords in different combinations and searching the papers in PubMed, EMBSEA, Web of Science, MEDLINE, AIM, LILACS, and WPRIM before February 2016. Most of the papers were published in English...
August 13, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28804787/burden-of-paediatric-respiratory-syncytial-virus-disease-and-potential-effect-of-different-immunisation-strategies-a-modelling-and-cost-effectiveness-analysis-for-england
#17
Deborah Cromer, Albert Jan van Hoek, Anthony T Newall, Andrew J Pollard, Mark Jit
BACKGROUND: Vaccines and prophylactic antibodies against respiratory syncytial virus (RSV) are in development and likely to be available in the next 5-10 years. The most efficient way to use these products when they become available is an important consideration for public health decision makers. METHODS: We performed a multivariate regression analysis to estimate the burden of RSV in children younger than 5 years in England (UK), a representative high-income temperate country, and used these results to assess the potential effect of different RSV immunisation strategies (targeting vaccination for infants, or pregnant women, or prophylactic antibodies for neonates)...
August 2017: Lancet. Public Health
https://www.readbyqxmd.com/read/28804753/concussion-incidence-and-recurrence-in-professional-australian-football-match-play-a-14-year-analysis
#18
Nathan Gibbs, Mark Watsford
BACKGROUND: Concussion incidence rates in professional Australian football may be underreported due to the injury classification definition. A myriad of factors contribute to concussion risk; however, there is limited long-term surveillance in Australian football. This study analysed concussion in one Australian football team over an extended period. METHOD: Match-play concussion injuries in one team (n = 116 participants) were diagnosed and treated by the team physician over 14 years...
2017: Journal of Sports Medicine (Hindawi Publishing Corporation)
https://www.readbyqxmd.com/read/28804490/a-vision-for-incorporating-environmental-effects-into-nitrogen-management-decision-support-tools-for-u-s-maize-production
#19
Kamaljit Banger, Mingwei Yuan, Junming Wang, Emerson D Nafziger, Cameron M Pittelkow
Meeting crop nitrogen (N) demand while minimizing N losses to the environment has proven difficult despite significant field research and modeling efforts. To improve N management, several real-time N management tools have been developed with a primary focus on enhancing crop production. However, no coordinated effort exists to simultaneously address sustainability concerns related to N losses at field- and regional-scales. In this perspective, we highlight the opportunity for incorporating environmental effects into N management decision support tools for United States maize production systems by integrating publicly available crop models with grower-entered management information and gridded soil and climate data in a geospatial framework specifically designed to quantify environmental and crop production tradeoffs...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28803372/oxidation-of-winery-wastewater-by-sulphate-radicals-catalytic-and-solar-photocatalytic-activations
#20
Jorge Rodríguez-Chueca, Carlos Amor, Joana Mota, Marco S Lucas, José A Peres
The treatment of winery effluents through sulphate radical-based advanced oxidation processes (SR-AOPs) driven by solar radiation is reported in this study. Photolytic and catalytic activations of peroxymonosulphate (PMS) and persulphate (KPS and SPS) at different pH values (4.5 and 7) were studied in the degradation of organic matter. Portugal is one of the largest wine producers in Europe. The wine making activities generate huge volume of effluents characterized by a variable volume and organic load, being their seasonal nature one of the most important drawbacks...
August 12, 2017: Environmental Science and Pollution Research International
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