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https://www.readbyqxmd.com/read/29240818/genetic-dissection-of-main-and-epistatic-effects-of-qtl-based-on-augmented-triple-test-cross-design
#1
Xueli Zhang, Congwei Sun, Zheng Zhang, Zhijun Dai, Yuan Chen, Xiong Yuan, Zheming Yuan, Wenbang Tang, Lanzhi Li, Zhongli Hu
The use of heterosis has considerably increased the productivity of many crops; however, the biological mechanism underpinning the technique remains elusive. The North Carolina design III (NCIII) and the triple test cross (TTC) are powerful and popular genetic mating design that can be used to decipher the genetic basis of heterosis. However, when using the NCIII design with the present quantitative trait locus (QTL) mapping method, if epistasis exists, the estimated additive or dominant effects are confounded with epistatic effects...
2017: PloS One
https://www.readbyqxmd.com/read/29240631/in-vivo-5-day-animal-studies-of-a-compact-wearable-pumping-artificial-lung
#2
Shalv P Madhani, Brian J Frankowski, Sang-Ho Ye, Greg W Burgreen, William R Wagner, Robert Kormos, Jonathan D'Cunha, William J Federspiel
Recent studies show improved outcomes in ambulated lung failure patients. Ambulation still remains a challenge in these patients. This necessitates development of more compact and less cumbersome respiratory support specifically designed to be wearable. The Paracorporeal Ambulatory Assist Lung (PAAL) is being designed for providing ambulatory support in lung failure patients during bridge to transplant or recovery. We previously published in vitro and acute in vivo results of the PAAL. This study further evaluates the PAAL for 5 days...
December 11, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/29240544/expected-time-to-return-to-athletic-participation-after-stress-fracture-in-division-i-collegiate-athletes
#3
Timothy L Miller, Marissa Jamieson, Sonsecharae Everson, Courtney Siegel
BACKGROUND: Few studies have documented expected time to return to athletic participation after stress fractures in elite athletes. HYPOTHESIS: Time to return to athletic participation after stress fractures would vary by site and severity of stress fracture. STUDY DESIGN: Retrospective cohort study. LEVEL OF EVIDENCE: Level 3. METHODS: All stress fractures diagnosed in a single Division I collegiate men's and women's track and field/cross-country team were recorded over a 3-year period...
December 1, 2017: Sports Health
https://www.readbyqxmd.com/read/29240004/synchronizing-gait-with-cardiac-cycle-phase-alters-heart-rate-response-during-running
#4
Keren Constantini, Abigail S L Stickford, Jeffery L Bleich, Paul D Mannheimer, Benjamin D Levine, Robert F Chapman
Timing foot strike to occur in synchrony with cardiac diastole may reduce left ventricular afterload and promote coronary and skeletal muscle perfusion. PURPOSE: To assess heart rate (HR) and metabolic responses to running when foot strikes are timed to occur exclusively during 1) the systolic phase of the cardiac cycle, or 2) the diastolic phase. METHODS: Ten elite male distance runners performed a testing session on a treadmill at 4.72 m[BULLET OPERATOR]s while matching their steps to an auditory tone and wearing a chest strap that transmitted accelerometer and ECG signals...
December 12, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29239994/effects-of-judo-training-on-bones-a-systematic-literature-review
#5
Simone Ciaccioni, Giancarlo Condello, Flavia Guidotti, Laura Capranica
The aim of this study was to provide a systematic literature review on the osteogenic effects of judo (PROSPERO: CRD42016041803). The online search was conducted according to the inclusion criteria: observational studies and clinical/interventional trials in English from inception to June 2016; bone health, mineral density (BMD), diameters, impact force and turnover markers (BTM) outcomes. Thirty-four studies were included and graded for their methodological quality ("fair" quality: 79.4%). The most used assessment method (44...
December 11, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29239991/a-multiple-repeated-sprint-ability-test-with-four-changes-of-direction-for-badminton-players-part-2-predicting-skill-level-with-anthropometry-strength-shuttlecock-and-displacement-velocity
#6
Michael Phomsoupha, Guillaume Laffaye
The goal of this study was: (i) to assess general and specific lower and upper limb force, shuttlecock velocity, displacement ability and the anthropometric characteristics of badminton players at five skill levels, and (ii) to predict individual players' number of points. We divided 83 participants into groups of novice (n=15), intermediate (n=16), skilled (n=23), highly skilled (n=14) and elite (n=15) players. The number of points scored for each player performing tournaments (excluding novices) during the entire season was used as a continuous and dependent variable after logarithmic transformation for correlational study...
December 11, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29239990/changes-in-player-activity-profiles-following-the-2015-fih-rule-changes-in-elite-women-s-hockey
#7
Gerard E McMahon, Rodney A Kennedy
The aim of this study was to compare the player activity profiles of elite international women hockey players pre (2014) and post (2015) the 2015 FIH match rule changes at team and positional levels. The match activity profiles (n=400) of 19 female hockey players (Age 23±4 years, mass 63.6±5.5 kg, VO2max 57±6 ml·kg·min in 2014, 58±6 ml·kg·min in 2015) were recorded during competitive international matches in 2014 (match n=12) and 2015 (match n=13) using 10Hz GPS units. The practical utility of an effect was only classified as substantial when there was a >75% likelihood that the ±90% CI of the ES was equal to or greater than the small (ES ± 0...
December 11, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29239987/body-composition-of-women-s-ice-hockey-players-comparison-of-estimates-using-skinfolds-and-idxa
#8
Kajsa Gilenstam, Christina A Geithner
The purpose of this study was to compare percent fat (% Fat) estimates from anthropometric equations using skinfolds (SKF) in women's ice hockey players to estimates obtained from Lunar iDXA. Data were collected on 19 elite female Swedish hockey players (mean age ± SD = 18.4 ± 2.4 y). Four skinfolds (SKF) (triceps, abdominal, suprailiac, and thigh) were measured within two hours of iDXA assessments. The % Fat estimates from iDXA and four anthropometric equations were compared using paired t-tests, and a one-way ANOVA was used to compare % Fat estimates from the anthropometric equations...
December 11, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29239985/training-load-physical-performance-biochemical-markers-and-psychological-stress-during-a-short-preparatory-period-in-brazilian-elite-male-volleyball-players
#9
Thiago A G Horta, Maurício G Bara Filho, Danilo R Coimbra, R Miranda, Francisco Z Werneck
The aim of this study was to assess the relationship between training load (TL) and physical performance, biochemical markers, and psychological stress during a short preparatory period (PP) in Brazilian elite male volleyball players. Twelve volleyball players from a team competing in the Brazilian Men's Volleyball Super League were enrolled (26.9 ± 4.6 years). Countermovement Jump (CMJ), Creatine Kinase (CK), Testosterone (T), Cortisol (Cr), T/Cr ratio, and Recovery and Stress Questionnaire for Athletes (RESTQ-Sport) were collected at baseline, after 2, 4, and 6 week...
December 11, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29239030/neuromuscular-training-reduces-lower-limb-injuries-in-elite-female-basketball-players-a-cluster-randomized-controlled-trial
#10
Matteo Bonato, Roberto Benis, Antonio La Torre
The study was a two-armed, parallel group, cluster randomized controlled trial in which 15 teams (160 players) were assigned to either an experimental group (EG, 8 teams n=86), which warmed-up with bodyweight neuromuscular exercises, or a control group (CG, 7 teams, n=74) that performed standard tactical-technical exercises before training. All injuries during the 2015-2016 regular season were counted. Epidemiologic incidence proportion and incidence rate, were also calculated. Counter movement jump (CMJ) and composite Y-Excursion balance test (YBT) were used to assess lower limb strength, and postural control...
December 14, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/29238597/effects-of-nine-weeks-isokinetic-training-on-power-golf-kinematics-and-driver-performance-in-pre-elite-golfers
#11
James Parker, Charlie Lagerhem, John Hellström, M Charlotte Olsson
Background: It has previously been shown that isotonic strength training can improve driver performance among golfers, though few studies have investigated effects of strength training on swing kinematics together with driver performance. In this study we investigated whether isokinetic rotational training could improve driver performance and swing kinematic variables amongst elite golfers. Methods: Twenty competitive pre-elite golfers (handicap better than -3.0), 13 men and 7 women, were split into two groups, one group received the isokinetic power training (IK) alongside their normal isotonic pre-season strength-training and the other group continued with their normal isotonic pre-season strength-training regime (IT)...
2017: BMC Sports Science, Medicine and Rehabilitation
https://www.readbyqxmd.com/read/29238358/characterization-of-the-wheat-leaf-metabolome-during-grain-filling-and-under-varied-n-supply
#12
Elmien Heyneke, Mutsumi Watanabe, Alexander Erban, Guangyou Duan, Peter Buchner, Dirk Walther, Joachim Kopka, Malcolm J Hawkesford, Rainer Hoefgen
Progress in improving crop growth is an absolute goal despite the influence multifactorial components have on crop yield and quality. An Avalon × Cadenza doubled-haploid wheat mapping population was used to study the leaf metabolome of field grown wheat at weekly intervals during the time in which the canopy contributes to grain filling, i.e., from anthesis to 5 weeks post-anthesis. Wheat was grown under four different nitrogen supplies reaching from residual soil N to a luxury over-fertilization (0, 100, 200, and 350 kg N ha-1)...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29238263/sleep-wake-behaviours-in-elite-athletes-from-three-different-football-codes
#13
Dean J Miller, Charli Sargent, Grace E Vincent, Gregory D Roach, Shona L Halson, Michele Lastella
No abstract text is available yet for this article.
December 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/29238245/explaining-match-outcome-during-the-men-s-basketball-tournament-at-the-olympic-games
#14
Anthony S Leicht, Miguel A Gómez, Carl T Woods
In preparation for the Olympics, there is a limited opportunity for coaches and athletes to interact regularly with team performance indicators providing important guidance to coaches for enhanced match success at the elite level. This study examined the relationship between match outcome and team performance indicators during men's basketball tournaments at the Olympic Games. Twelve team performance indicators were collated from all men's teams and matches during the basketball tournament of the 2004-2016 Olympic Games (n = 156)...
December 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/29238243/analysis-of-time-motion-and-heart-rate-in-elite-male-and-female-beach-handball
#15
Basilio Pueo, Jose M Jimenez-Olmedo, Alfonso Penichet-Tomas, Manuel Ortega Becerra, Jose J Espina Agullo
Beach handball is a spectacular new team sport; however, scientific knowledge about the demands in beach handball is very low. Consequently, the aim of this study was to analyze the physical demands of elite beach handball players by means of time-motion analysis with GPS technology and physiological response with Heart Rate (HR). Both male (n = 12) and female (n = 12) players from the Spanish Beach Handball National Team were recruited for this study. The sample consisted in four matches of two 10-min periods each...
December 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/29237079/fine-tuning-of-the-setting-of-critical-day-length-by-two-casein-kinases-in-rice-photoperiodic-flowering
#16
Yasue Nemoto, Kiyosumi Hori, Takeshi Izawa
Many short-day plants have a critical day length that fixes the schedule for flowering time, limiting the range of natural growth habitats (or growth and cultivation areas). Thus, fine-tuning of the critical day-length setting in photoperiodic flowering determines ecological niches within latitudinal clines; however, little is known about the molecular mechanisms controlling the fine-tuning of the critical day-length setting in plants. Previously, we determined that florigen genes are regulated by day length, and identified several key genes involved in setting the critical day length in rice...
December 10, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/29236947/earliness-traits-in-rapeseed-brassica-napus-snp-loci-and-candidate-genes-identified-by-genome-wide-association-analysis
#17
Qinghong Zhou, Depeng Han, Annaliese S Mason, Can Zhou, Wei Zheng, Yazhen Li, Caijun Wu, Donghui Fu, Yingjin Huang
Life cycle timing is critical for yield and productivity of Brassica napus (rapeseed) cultivars grown in different environments. To facilitate breeding for earliness traits in rapeseed, SNP loci and underlying candidate genes associated with the timing of initial flowering, maturity and final flowering, as well as flowering period (FP) were investigated in two environments in a diversity panel comprising 300 B. napus inbred lines. Genome-wide association studies (GWAS) using 201,817 SNP markers previously developed from SLAF-seq (specific locus amplified fragment sequencing) revealed a total of 131 SNPs strongly linked (P < 4...
December 11, 2017: DNA Research: An International Journal for Rapid Publication of Reports on Genes and Genomes
https://www.readbyqxmd.com/read/29236812/-freud-for-all-psychoanalysis-and-mass-culture-in-chile-1920-1950
#18
Mariano Ruperthuz Honorato
This article deals with the circulation and early spread of Freudianism in mass culture in Chilean society at the turn of the twentieth century. It documents the first references to Sigmund Freud in the Chilean media, the announcement of Freudian-style self-help classes, the appearance of psychoanalysts as characters in some fantasy novels, and the open lectures on psychoanalysis given by the first juvenile court judge in Santiago, the lawyer Samuel Gajardo Contreras. It explores the expectations projected onto Freudianism by the Chilean elite, and how Freud's theories contributed to a rethinking of childhood, the family and emotional life in Chile from 1920-1950...
November 2017: História, Ciências, Saúde—Manguinhos
https://www.readbyqxmd.com/read/29236738/genetic-relatedness-of-previously-plant-variety-protected-commercial-maize-inbreds
#19
Travis J Beckett, A Jason Morales, Klaus L Koehler, Torbert R Rocheford
The emergence of high-throughput, high-density genotyping methods combined with increasingly powerful computing systems has created opportunities to further discover and exploit the genes controlling agronomic performance in elite maize breeding populations. Understanding the genetic basis of population structure in an elite set of materials is an essential step in this genetic discovery process. This paper presents a genotype-based population analysis of all maize inbreds whose Plant Variety Protection certificates had expired as of the end of 2013 (283 inbreds) as well as 66 public founder inbreds...
2017: PloS One
https://www.readbyqxmd.com/read/29235939/are-shoulder-counter-rotation-and-hip-shoulder-separation-angle-representative-metrics-of-three-dimensional-spinal-kinematics-in-cricket-fast-bowling
#20
Billy Senington, Raymond Y Lee, Jonathan Mark Williams
This study aimed to investigate the relationship between shoulder counter-rotation (SCR), hip shoulder separation (HSS) and three-dimensional spinal kinematics during fast bowling in cricket. Thirty five elite male fast bowlers were analysed using three-dimensional inertial sensors on the spine. Lumbar, thoracic and thoracolumbar kinematics were determined during the delivery stride. Spearman's pairwise correlations displayed significant associations between SCR, thoracic and thoracolumbar lateral flexion between the back foot impact and max contralateral rotation phase of the delivery stride (rs = -...
December 13, 2017: Journal of Sports Sciences
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