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https://www.readbyqxmd.com/read/27911018/sperm-competition-and-the-evolution-of-precopulatory-weapons-testis-size-and-amplexus-position-but-not-arm-strength-affect-fertilization-success-in-a-chorusing-frog
#1
Bruno A Buzatto, Evan M Thyer, J Dale Roberts, Leigh W Simmons
Trade-offs between pre- and postcopulatory traits influence their evolution, and male expenditure on such traits is predicted to depend on the number of competitors, the benefits from investing in weapons, and the risk and intensity of sperm competition. Males of the chorusing frog Crinia georgiana use their arms as weapons in contest competition. Previously, we showed that increased numbers of rivals elevated the risk and intensity of sperm competition due to multimale amplexus, and caused a reversal in the direction of precopulatory selection on arm girth...
December 2, 2016: Evolution; International Journal of Organic Evolution
https://www.readbyqxmd.com/read/27907900/insulin-resistance-in-polycystic-ovary-syndrome-a-systematic-review-and-meta-analysis-of-euglycaemic-hyperinsulinaemic-clamp-studies
#2
Samantha Cassar, Marie L Misso, William G Hopkins, Christopher S Shaw, Helena J Teede, Nigel K Stepto
STUDY QUESTION: What is the degree of intrinsic insulin resistance (IR) in women with polycystic ovary syndrome (PCOS) and the relative contribution of BMI to overall IR based on meta-analysis of gold standard insulin clamp studies? SUMMARY ANSWER: We report an inherent reduction (-27%) of insulin sensitivity (IS) in PCOS patients, which was independent of BMI. WHAT IS ALREADY KNOWN: PCOS is prevalent, complex and underpinned by IR but controversies surround the degree of intrinsic IR in PCOS, the effect of BMI and the impact of the different diagnostic criteria (NIH versus Rotterdam) in PCOS...
November 2016: Human Reproduction
https://www.readbyqxmd.com/read/27904451/the-ratio-of-weight-loss-to-planning-target-volume-significantly-impacts-setup-errors-in-nasopharyngeal-cancer-patients-undergoing-helical-tomotherapy-with-daily-megavoltage-computed-tomography
#3
Wei-Hsien Hou, Chun-Wei Wang, Chiao-Ling Tsai, Feng-Ming Hsu, Jason Chia-Hsien Cheng
BACKGROUND: Changes in head and neck anatomy during radiation therapy (RT) produce setup uncertainties of nasopharyngeal cancer (NPC) irradiation. We retrospectively analyzed image guidance data to identify clinical predictors of setup errors. PATIENTS AND METHODS: The data of 217 NPC patients undergoing definitive RT on a helical tomotherapy (HT) unit were analyzed. Factors including tumor stage, body mass index, weight loss, and planning target volume (PTV) were assessed as predictors of daily megavoltage computed tomography (MVCT) setup displacements, which were automatically registered using software...
December 1, 2016: Radiology and Oncology
https://www.readbyqxmd.com/read/27898826/quantitative-trait-loci-mapping-for-tillering-related-traits-in-two-switchgrass-populations
#4
Dan Chang, Yanqi Wu, Linglong Liu, Shuiyi Lu-Thames, Hongxu Dong, Carla Goad, Shiqie Bai, Shiva Makaju, Tilin Fang
Plant tillering and related traits are morphologically important components contributing to switchgrass ( L.) biomass yield. The objectives of this study were to estimate broad-sense heritabilities for tillering-related traits, to analyze correlations between biomass yield and the traits, and to identify quantitative trait loci (QTL) for them. A first-generation selfed population of NL94 plant and a hybrid population between NL94 and SL93 plants were field established in a randomized complete block design with three replications in Stillwater and Perkins, OK...
July 2016: Plant Genome
https://www.readbyqxmd.com/read/27894677/factors-affecting-the-results-of-the-functional-dexterity-test
#5
Füsun Şahin, Nilgün Şimşir Atalay, Nuray Akkaya, Sibel Aksoy
STUDY DESIGN: Cross-sectional study. PURPOSE OF THE STUDY: The purpose of this study was to identify which demographic and anthropometric features affect performance (time) on the functional dexterity test (FDT). METHODS: One hundred fifty-two healthy subjects between the ages of 20 and 80 years were included in this cross-sectional study. Demographic characteristics (age, gender, height, weight, and dominant hand) and anthropometric (the girths of the first 3 fingers) variables were recorded, and the FDT (net time and total score) was performed...
November 25, 2016: Journal of Hand Therapy: Official Journal of the American Society of Hand Therapists
https://www.readbyqxmd.com/read/27890095/an-unexpected-death-due-to-massive-ascites-and-a-giant-mucinous-ovarian-cystadenoma
#6
Masayuki Kashiwagi, Mio Takayama, Tomoko Sugimura, Aya Matsusue, Kenji Hara, Brian Waters, Shin-Ichi Kubo
A female in her thirties fell face down in her room. She was motionless when her sister found her. She was transported to the hospital by ambulance and was in a state of cardiopulmonary arrest on admission. She did not respond to resuscitation. Her abdomen had started to swell 3years before her death. An autopsy was performed to clarify the decedent's cause of death. She was 172cm tall and weighed 146kg. Her maximum abdominal girth was 172.1cm. A subcutaneous hemorrhage measuring 4.5cm in diameter was observed in the epigastric region...
November 2016: Legal Medicine
https://www.readbyqxmd.com/read/27875321/the-impact-of-selected-environmental-behavioral-and-psychosocial-factors-on-schoolchildren-s-somatic-and-mental-health
#7
Diana Vondrova, Daniela Kapsdorfer, Lubica Argalasova, Katarina Hirosova, Martin Samohyl, Ludmila Sevcikova
Children develop rapidly and many exogenous determinants of health significantly affect their somatic and mental development. There is a subjective perception of cognitive load associated with the educational process. The aim of the study is to assess individual environmental, behavioral and psychosocial factors influencing physical health and to investigate the amount of mental load in children. We investigated 87 schoolchildren (47 girls and 40 boys) aged 10-12 years, who were attending primary school in Bratislava...
November 22, 2016: Reviews on Environmental Health
https://www.readbyqxmd.com/read/27869982/characteristics-of-the-first-cases-of-microcephaly-possibly-related-to-zika-virus-reported-in-the-metropolitan-region-of-recife-pernambuco-state-brazil
#8
Alexander Vargas, Eduardo Saad, George Santiago Dimech, Roselene Hans Santos, Maria Auxiliadora Vieira Caldas Sivini, Luciana Carolina Albuquerque, Patricia Michelly Santos Lima, Idalacy de Carvalho Barreto, Michelly Evangelista de Andrade, Nathalie Mendes Estima, Patrícia Ismael de Carvalho, Rayane Souza de Andrade Azevedo, Rita de Cássia de Oliveira Vasconcelos, Romildo Siqueira Assunção, Lívia Carla Vinhal Frutuoso, Greice Madeleine Ikeda do Carmo, Priscila Bochi de Souza, Marcelo Yoshito Wada, Wanderson Kleber de Oliveira, Cláudio Maierovitch Pessanha Henriques, Jadher Percio
OBJECTIVE: to describe the first cases of microcephaly possibly related to Zika virus in live born babies reported in the Metropolitan Region of Recife, Pernambuco State, Brazil. METHODS: this was a descriptive case series study (cases reported between August 1st and October 31st 2015), using medical record data and data from a questionnaire answered by the mothers of the babies. RESULTS: 40 microcephaly cases were confirmed, distributed in eight municipalities within the Metropolitan Region, with Recife itself having the highest concentration of cases (n=12); median head circumference was 29 cm, median chest girth was 31 cm and median weight was 2,628 grams; 21/25 cases had brain calcification, ventriculomegaly or lissencephaly; 27 of the 40 mothers reported rash during pregnancy, 20 in the first trimester and 7 in the second trimester, as well as itching, headache, myalgia and absence of fever...
October 2016: Epidemiologia e Servicos de Saude: Revista do Sistema Unico de Saude do Brasil
https://www.readbyqxmd.com/read/27869491/penile-self-injection-with-foreign-materials
#9
U Ahmed, A Freeman, A Kirkham, D J Ralph, S Minhas, A Muneer
Injection of the subcutaneous tissues of the penis for enlargement of penile girth has been practised for many years by laypeople and medical practitioners alike. However, with recognition of the complications, the practice has died out. We report a series of five patients who presented having injected foreign materials into the subcutaneous tissues of their penises, including paraffin and mineral oils. Our patients had a variable time course of presentation ranging from 1 day following injection to over 26 years...
November 21, 2016: Annals of the Royal College of Surgeons of England
https://www.readbyqxmd.com/read/27865507/plasma-protein-and-supplemental-isoleucine-in-milk-replacers-for-dairy-calves
#10
K M Vasquez, S Y Morrison, J M Campbell, J K Drackley
We measured the effects of milk replacers containing 0, 33, 66, or 100% of the total replaceable whey protein as bovine plasma protein (PP), without or with Ile supplementation, on the intake, growth, and health of 124 male Holstein calves for 35 d. Milk replacers were formulated to contain 18% crude protein and 20% fat, with contents of Lys and Met equalized. When fed to calves at 1.5% of body weight (dry matter basis) under thermoneutral conditions, diets were predicted to allow average daily gains of 0.55 kg/d based on metabolizable energy or 0...
November 16, 2016: Journal of Dairy Science
https://www.readbyqxmd.com/read/27865488/the-influence-of-3-different-navel-dips-on-calf-health-growth-performance-and-umbilical-infection-assessed-by-clinical-and-ultrasonographic-examination
#11
M Wieland, S Mann, C L Guard, D V Nydam
The objectives were to investigate the effect of 3 navel dips on (1) umbilical infection, (2) health events (pneumonia, diarrhea, and arthritis), and (3) average daily gain (ADG) in newborn dairy calves. A secondary aim was to compare the agreement of standardized ultrasonographic examination with clinical examination for the diagnosis of umbilical infection. In a randomized block design, newborn calves were assigned by birth order to 3 treatment groups: Navel Guard (NG; SCG-Solutions Inc., McDonough, GA), 7% iodine tincture (SI), and 2% chlorhexidine gluconate (CH)...
November 16, 2016: Journal of Dairy Science
https://www.readbyqxmd.com/read/27865154/a-narrow-bimalleolar-width-is-a-risk-factor-for-ankle-inversion-injury-in-male-military-recruits-a-prospective-study
#12
Hannah Rice, Michael Nunns, Carol House, Joanne Fallowfield, Adrian Allsopp, Sharon Dixon
BACKGROUND: Ankle inversion injuries are one of the most common and burdensome injuries in athletic populations. Research that prospectively identifies characteristics associated with this injury is lacking. This prospective study compared baseline anthropometric and biomechanical gait characteristics of military recruits who sustained an ankle inversion injury during training, with those who remained injury-free. METHODS: Bilateral plantar pressure and three-dimensional lower limb kinematics were recorded in 1065 male, injury-free military recruits, during barefoot running...
November 10, 2016: Clinical Biomechanics
https://www.readbyqxmd.com/read/27858688/characteristics-of-foot-morphology-and-their-relationship-to-gender-age-body-mass-index-and-bilateral-asymmetry-in-japanese-adults
#13
Xiaoguang Zhao, Takehiko Tsujimoto, Bokun Kim, Yasutomi Katayama, Kiyoji Tanaka
BACKGROUND: Different characteristics of foot morphology are commonly accompanied by altering lower extremity biomechanical characteristics and foot function. Clarifying what factors affect foot morphology is helpful in understanding the basis of foot deformity and foot dysfunction. OBJECTIVE: The aim of this study was to investigate characteristics of foot morphology and whether related factors such as gender, age, body mass index (BMI) and bilateral asymmetry have an impact on foot morphology...
November 11, 2016: Journal of Back and Musculoskeletal Rehabilitation
https://www.readbyqxmd.com/read/27853556/relations-between-morphology-buoyancy-and-energetics-of-requiem-sharks
#14
Gil Iosilevskii, Yannis P Papastamatiou
Sharks have a distinctive shape that remained practically unchanged through hundreds of millions of years of evolution. Nonetheless, there are variations of this shape that vary between and within species. We attempt to explain these variations by examining the partial derivatives of the cost of transport of a generic shark with respect to buoyancy, span and chord of its pectoral fins, length, girth and body temperature. Our analysis predicts an intricate relation between these parameters, suggesting that ectothermic species residing in cooler temperatures must either have longer pectoral fins and/or be more buoyant in order to maintain swimming performance...
October 2016: Royal Society Open Science
https://www.readbyqxmd.com/read/27853540/persistent-homology-in-graph-power-filtrations
#15
Allen D Parks, David J Marchette
The persistence of homological features in simplicial complex representations of big datasets in R (n) resulting from Vietoris-Rips or Čech filtrations is commonly used to probe the topological structure of such datasets. In this paper, the notion of homological persistence in simplicial complexes obtained from power filtrations of graphs is introduced. Specifically, the rth complex, r ≥ 1, in such a power filtration is the clique complex of the rth power G(r) of a simple graph G. Because the graph distance in G is the relevant proximity parameter, unlike a Euclidean filtration of a dataset where regional scale differences can be an issue, persistence in power filtrations provides a scale-free insight into the topology of G...
October 2016: Royal Society Open Science
https://www.readbyqxmd.com/read/27821967/physical-and-balance-performance-following-exercise-induced-muscle-damage-in-male-soccer-players
#16
Muzaffar Ahmad Khan, Jamal Ali Moiz, Shahid Raza, Shalini Verma, M Y Shareef, Shahnawaz Anwer, Ahmad Alghadir
[Purpose] The present study aimed to determine the changes in physical and balance performance following exercise-induced muscle damage using a sport-specific protocol. [Subjects and Methods] Fifteen collegiate soccer players were asked to perform a sport-specific sprint protocol to induce muscle damage. The markers of muscle damage (soreness, range of motion, limb girth, muscle strength, creatine kinase and lactate dehydrogenase), physical performance (speed, agility and power) and balance (static and dynamic balance) were assessed at baseline and 24, 48 and 72 hours following the sprint protocol...
October 2016: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/27821946/relation-between-muscle-fiber-conduction-velocity-and-exerted-dynamic-characteristics-of-muscular-tension-in-patients-with-hemiplegia-caused-by-stroke
#17
Kenichi Murakami, Hiroyuki Fujisawa, Makoto Suzuki, Yoichiro Sato, Kentaro Sakurai, Chie Abe
[Purpose] The aim of this study was to clarify the relationships among muscle fiber conduction velocity, time-force characteristics of muscle force production, and voluntary movement in patients with hemiplegia. [Subjects and Methods] The participants in the present study were 13 patients with hemiplegia. Muscle fiber conduction velocity, deep temperature of muscles and muscle thickness were measured for the tibialis anterior, and a time force curve was obtained from dorsiflexion of the ankle and lower thigh girth (maximum, minimum) for both sides...
October 2016: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/27816246/clinical-trial-on-the-effects-of-a-free-access-acidified-milk-replacer-feeding-program-on-the-health-and-growth-of-dairy-replacement-heifers-and-veal-calves
#18
C G Todd, K E Leslie, S T Millman, V Bielmann, N G Anderson, J M Sargeant, T J DeVries
The objectives of this study were to evaluate the effects of free-access acidified milk replacer feeding on the pre- and postweaning health of dairy and veal calves. Individually housed calves were systematically assigned at birth to 1 of 2 feeding programs: free-access feeding (ad libitum) of acidified milk replacer (ACD, n = 249) or traditional restricted feeding (3 L fed twice daily) of milk replacer (RES, n = 249). Calves were fed milk replacer containing 24% crude protein and 18% fat. Acidified milk replacer was prepared to a target pH between 4...
November 2, 2016: Journal of Dairy Science
https://www.readbyqxmd.com/read/27801546/defying-geometric-similarity-shape-centralization-in-male-uk-offshore-workers
#19
Arthur D Stewart, Robert J Ledingham, Graham Furnace, Hector Williams, Alan M Nevill
OBJECTIVES: Applying geometric similarity predictions of body dimensions to specific occupational groups has the potential to reveal useful ergonomic and health implications. This study assessed a representative sample of the male UK offshore workforce, and examined how body dimensions from sites typifying musculoskeletal development or fat accumulation, differed from predicted values. METHODS: A cross sectional sample was obtained across seven weight categories using quota sampling, to match the wider workforce...
November 1, 2016: American Journal of Human Biology: the Official Journal of the Human Biology Council
https://www.readbyqxmd.com/read/27766968/body-condition-score-morphometric-measurements-and-estimation-of-body-weight-in-mature-icelandic-horses-in-denmark
#20
Rasmus B Jensen, Signe H Danielsen, Anne-Helene Tauson
BACKGROUND: Obesity is related to the development of several diseases like insulin resistance and laminitis in horses. The prevalence of obesity among mature Icelandic horses in Denmark has not been investigated previously. This study aimed to find the prevalence of obesity, to compare body condition score (BCS) based on owner perception with that of an experienced person and to correlate the BCS to body weight (BW) and morphometric measures in a group of mature Icelandic horses in Denmark...
October 20, 2016: Acta Veterinaria Scandinavica
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