keyword
MENU ▼
Read by QxMD icon Read
search

Rate of force production

keyword
https://www.readbyqxmd.com/read/28640772/the-effect-of-a-carbohydrate-mouth-rinse-on-upper-body-muscular-strength-and-endurance
#1
James E Dunkin, Shaun M Phillips
Dunkin, JE and Phillips, SM. The effect of a carbohydrate mouth rinse on upper-body muscular strength and endurance. J Strength Cond Res 31(7): 1948-1953, 2017-Carbohydrate (CHO) mouth rinsing rapidly increases corticomotor output and maximal muscle force production, which could enhance muscular strength and endurance during resistance exercise. However, previous research has found no effect of CHO rinsing on muscular strength or endurance. The current study altered the CHO rinse composition and frequency and the muscular endurance test to further investigate the effects of a CHO mouth rinse on upper-body muscular strength and endurance...
July 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28637284/descriptive-texture-analyses-of-cooked-patties-made-of-chicken-breast-with-the-woody-breast-condition1
#2
G Sanchez Brambila, Debolina Chatterjee, B Bowker, H Zhuang
The woody breast (WB) condition negatively influences the texture characteristics and quality of intact broiler breast fillets (Pectoralis major). But the impact of WB on ground meat is unknown. The objective of this study was to evaluate the effects of WB on the texture and cook loss of ground meat made of broiler breast fillets. Broiler breasts (deboned 3 h postmortem) were collected on 3 separate trial d from the commercial deboning line and classified into normal and severe WB fillet categories. Individual fillets were either ground and formed into patties or left intact prior to being stored for 7 d at -20°C...
June 16, 2017: Poultry Science
https://www.readbyqxmd.com/read/28631312/the-flow-and-fate-of-digestive-enzymes-in-the-field-cricket-gryllus-bimaculatus
#3
Joseph Woodring
The flow of enzymes, the ratio of bound to unbound enzymes, and their inactivation in the cricket Gryllus bimaculatus was studied. The digestive enzymes are forced forward into the crop by caecal contraction and then they are mixed with freshly chewed food and saliva, forming a crop-chyme. This chyme is blended by crop peristalsis, and periodic opening of the preproventricular valve (PPV) allows posterior movement into the proventriculus and further into the midgut. The contraction of the crop is modulated by Grybi-AST and Grybi-SK peptides, which are partially secreted by the caecal endocrine cells...
June 20, 2017: Archives of Insect Biochemistry and Physiology
https://www.readbyqxmd.com/read/28627562/a-novel-combined-chemical-kinetic-and-trapping-method-for-probing-the-relationships-between-chemical-reactivity-and-interfacial-h2o-br-and-h-ion-molarities-in-ctab-c12e6-mixed-micelles
#4
Aijaz Ahmad Dar, Laurence S Romsted, Nighat Nazir, Yongliang Zhang, Xiang Gao, Qing Gu, Changyao Liu
A delicate balance-of-forces governs the interactions responsible for surfactant self-assembly and chemical reactivity within them. Chemical reactions in micellar media generally occur in the interfacial region of micelles that is a complex mixture of: water, headgroups, counterions, co-ions, acids or bases, organic solvents, and the reactants themselves. We have carried out a detailed study of a complex chemical reaction in mixed CTAB/C12E6 micelles by using the chemical kinetic (CK) and chemical trapping (CT) methods...
June 19, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28626133/simple-synthesis-hydrogenated-castor-oil-fatty-amide-wax-and-its-coating-characterization
#5
Xiuzhu Yu, Ning Wang, Rui Zhang, Zhong Zhao
A simple method for incorporating amine groups in hydrogenated castor oil (HCO) to produce wax for beeswax or carnauba wax substitution in packaging and coating was developed. From the conversion rate of the products, HCO was reacted with ethanolamine at 150°C for 5 h, and the molar ratio of HCO and ethanolamine was 1:4. The hardness of the final product was seven times higher than that of beeswax, the cohesiveness of the final product was 1.3 times higher than that of beeswax and approximately one half of that of carnauba wax, and the melting point of the final product is 98°C...
June 13, 2017: Journal of Oleo Science
https://www.readbyqxmd.com/read/28624442/loss-of-fructose-1-6-bisphosphatase-induces-glycolysis-and-promotes-apoptosis-resistance-of-cancer-stem-like-cells-an-important-role-in-hexavalent-chromium-induced-carcinogenesis
#6
Jin Dai, Yanli Ji, Wei Wang, Donghern Kim, Leonard Yenwong Fai, Lei Wang, Jia Luo, Zhuo Zhang
Hexavalent chromium (Cr(VI)) compounds are confirmed human carcinogens for lung cancer. Our previous studies has demonstrated that chronic exposure of human bronchial epithelial BEAS-2B cells to low dose of Cr(VI) causes malignant cell transformation. The acquisition of cancer stem cell-like properties is involved in the initiation of cancers. The present study has observed that a small population of cancer stem-like cells (BEAS-2B-Cr-CSC) exists in the Cr(VI)-transformed cells (BEAS-2B-Cr). Those BEAS-2B-Cr-CSC exhibit extremely reduced capability of generating reactive oxygen species (ROS) and apoptosis resistance...
June 14, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28623713/indirect-sinusoidal-vibrations-induces-an-acute-increase-in-explosive-strength
#7
Leandro V de Paula, Pedro V S Moreira, Rudolf Huebner, Leszek A Szmuchrowski
The purpose of this study was to examine the acute effect of indirect vibration on neuromuscular responses and fatigue resistance (electromyographic activity - EMG and force) during isometric exercise. Nineteen healthy men (age=22.4±2.7years; body mass=76.4±12.9kg, height=175±6.7cm) performed isometric elbow flexion exercises in three experimental treatments: only isometric exercise (control - CON); isometric exercise with the addition of sinusoidal vibrations (SVE1; frequency=20Hz, displacement=3.55±0...
June 14, 2017: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/28621384/stability-indicating-uhplc-pda-assay-for-simultaneous-determination-of-antazoline-hydrochloride-and-naphazoline-hydrochloride-in-ophthalmic-formulations
#8
Amir Ali, Umar Farooq, Mahmood Ahmed, Muhammad Athar, Kashif Nadeem, Ghulam Murtaza
In the present study, a newly developed method based on ultrahigh performance liquid chromatography (UHPLC) was optimized for the simultaneous determination of antazoline hydrochloride (ANZ) and naphazoline hydrochloride (NFZ) in ophthalmic formulations. Isocratic separation of ANZ and NFZ was performed at 40 °C with an ACE Excel 2 C18-PFP column (2 μm, 2.1 × 100 mm) at a flow rate of 0.6 mL min-1 whereas the mobile phase consisted of acetonitrile/phosphate buffer (60:40, v/v, pH 3.0) containing 0.5% triethylamine...
June 2017: Acta Chimica Slovenica
https://www.readbyqxmd.com/read/28620409/real-time-determination-of-photosynthesis-transpiration-water-use-efficiency-and-gene-expression-of-two-sorghum-bicolor-moench-genotypes-subjected-to-dry-down
#9
Alessandra Fracasso, Eugenio Magnanini, Adriano Marocco, Stefano Amaducci
Plant growth and productivity are strongly affected by limited water availability in drought prone environments. The current climate change scenario, characterized by long periods without precipitations followed by short but intense rainfall, forces plants to implement different strategies to cope with drought stress. Understanding how plants use water during periods of limited water availability is of primary importance to identify and select the best adapted genotypes to a certain environment. Two sorghum genotypes IS22330 and IS20351, previously characterized as drought tolerant and drought sensitive genotypes, were subjected to progressive drought stress through a dry-down experiment...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28611042/competition-between-dna-methylation-nucleotide-synthesis-and-anti-oxidation-in-cancer-versus-normal-tissues
#10
Sha Cao, Xiwen Zhu, Chi Zhang, Hong Qian, Heinz-Bernd Schuttler, Jian-Ping Gong, Ying Xu
Global DNA hypomethylation occurs in many cancer types but there is no explanation for its differential occurance or possible impact on cancer cell physiology. Here we address these issues with a computational study of genome-scale DNA methylation in 16 cancer types. Specifically, we identified (1) a possible determinant for global DNA methylation in cancer cells, and (2) a relationship between levels of DNA methylation, nucleotide synthesis and intracellular oxidative stress in cells. We developed a system of kinetic equations to capture the metabolic relations among DNA methylation, nucleotide synthesis, and anti-oxidative stress response, including their competitions for methyl and sulfur groups, based on known information about one-carbon metabolism and trans-sulfuration pathways...
June 13, 2017: Cancer Research
https://www.readbyqxmd.com/read/28604707/ultracoherent-nanomechanical-resonators-via-soft-clamping-and-dissipation-dilution
#11
Y Tsaturyan, A Barg, E S Polzik, A Schliesser
The small mass and high coherence of nanomechanical resonators render them the ultimate mechanical probe, with applications that range from protein mass spectrometry and magnetic resonance force microscopy to quantum optomechanics. A notorious challenge in these experiments is the thermomechanical noise related to the dissipation through internal or external loss channels. Here we introduce a novel approach to define the nanomechanical modes, which simultaneously provides a strong spatial confinement, full isolation from the substrate and dilution of the resonator material's intrinsic dissipation by five orders of magnitude...
June 12, 2017: Nature Nanotechnology
https://www.readbyqxmd.com/read/28599041/quikclot%C3%A2-combat-gauze%C3%A2-use-by-ground-forces-in-afghanistan-the-prehospital-trauma-registry-experience
#12
Steven G Schauer, Michael D April, Jason F Naylor, Andrew D Fisher, Cord W Cunningham, Kathy L Ryan, Krista C Thomas, Daniel B Brillhart, Jessie Renee D Fernandez, Mark A Antonacci
BACKGROUND: QuikClot® Combat Gauze® (QCCG) was fielded in 2008 to replace previous generations of hemostatic products. To the best of our knowledge, despite nearly a decade of use, there are no published data on use among US combatant forces. We describe the use of QCCG by ground forces in Afghanistan and compare patients who received QCCG compared with the remaining population in the database who did not receive QCCG. METHODS: Data were obtained from the Prehospital Trauma Registry (PHTR)...
2017: Journal of Special Operations Medicine: a Peer Reviewed Journal for SOF Medical Professionals
https://www.readbyqxmd.com/read/28596267/adaptations-of-motoneuron-properties-after-weight-lifting-training-in-rats
#13
Piotr Krutki, Włodzimierz Mrówczyński, Marcin Bączyk, Dawid Łochyński, Jan Celichowski
Resistance training, with repeated short-term and high-intensity exercises, is responsible for an increase in muscle mass and force. The aim of this study was to determine whether such training induces adaptations in the electrophysiological properties of motoneurons innervating the trained muscles and to relate these adaptive changes to previous observations made on motor unit contractile properties. The study was performed on adult male Wistar rats. Animals from the training group were subjected to a five-week voluntary progressive weight-lifting program, while control rats were restricted to standard cage activity...
June 8, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28595156/self-assembly-of-exfoliated-molybdenum-disulfide-mos2-nanosheets-and-layered-double-hydroxide-ldh-towards-reducing-fire-hazards-of-epoxy
#14
Keqing Zhou, Rui Gao, Xiaodong Qian
In present study, LDH/MoS2 hybrids were facilely prepared by self-assembly of exfoliated MoS2 nanosheets and LDH via electrostatic force. The structure and morphology of the LDH/MoS2 hybrids were characterized and then introduced into epoxy for reducing its fire hazards. Compared with single MoS2, LDH/MoS2 hybrids showed a more homogeneous dispersion in the epoxy matrix and no obvious agglomerates were observed. Compared with MoS2, the addition of LDH/MoS2 hybrids endowed more excellent fire resistance to epoxy matrix, which was reflected by the significantly reduced peak heat release rate, total heat release and total smoke production...
May 27, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28595134/fatigue-induced-dissociation-between-rate-of-force-development-and-maximal-force-across-repeated-rapid-contractions
#15
Gennaro Boccia, Davide Dardanello, Cantor Tarperi, Luca Festa, Antonio La Torre, Barbara Pellegrini, Federico Schena, Alberto Rainoldi
We examined whether the presence of fatigue induced by prolonged running influenced the time courses of force generating capacities throughout a series of intermittent rapid contractions. Thirteen male amateur runners performed a set of 15 intermittent isometric rapid contractions of the knee extensor muscles, (3s/5s on/off) the day before (PRE) and immediately after (POST) a half marathon. The maximal voluntary contraction force, rate of force development (RFDpeak), and their ratio (relative RFDpeak) were calculated...
June 5, 2017: Human Movement Science
https://www.readbyqxmd.com/read/28586734/sorption-of-cu-by-humic-acid-from-the-decomposition-of-rice-straw-in-the-absence-and-presence-of-clay-minerals
#16
Yongbo Qi, Jun Zhu, Qingling Fu, Hongqing Hu, Qiaoyun Huang
The sorption of Cu on humic acid (HA) from the decomposition of rice straw in the absence (Ck-HA) and presence of montmorillonite (M-HA), kaolinite (K-HA), gibbsite (Gi-HA) and goethite (Go-HA) was investigated at pH 5.0 by using batch studies combined with isothermal titration calorimetry (ITC) and atomic force microscopy (AFM). Characterization by elemental analysis and potentiometric titration showed the composition difference among these five HA. The sorption capacity and rate increased in the order: M-HA < K-HA < Gi-HA < Ck-HA < Go-HA...
June 3, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28585214/the-interactions-between-kynurenine-folate-methionine-and-pteridine-pathways-in-obesity
#17
Ayse Basak Engin, Atilla Engin
Obesity activates both innate and adaptive immune responses in adipose tissue. Elevated levels of eosinophils with depression of monocyte and neutrophil indicate the deficiencies in the immune system of morbidly obese individuals. Actually, adipose tissue macrophages are functional antigen-presenting cells that promote the proliferation of interferon-gamma (IFN-gamma)-producing CD4+ T cells in adipose tissue of obese subjects. Eventually, diet-induced obesity is associated with the loss of tissue homeostasis and development of type 1 inflammatory responses in visceral adipose tissue...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28573723/extruded-snacks-from-whole-wheat-supplemented-with-textured-soy-flour-effect-on-instrumental-and-sensory-textural-characteristics
#18
Arturo Rodríguez-Vidal, Héctor Eduardo Martínez-Flores, Eva González Jasso, Gonzalo Velázquez de la Cruz, Aurea K Ramírez-Jiménez, Eduardo Morales-Sánchez
The quality of extruded snacks can be affected not only by processing conditions, but also by some factors like the concentration and type of ingredients incorporated in their formulation and the working conditions used. Although the process conditions have been established with measurable textural properties, sensory qualities have not been correlated with these responses in expanded extruded snacks made with added functional ingredients. Therefore, in this study the effect of adding textured soy flour (TSF) and whole wheat flour (WWF) to refined wheat flour in the production of extruded snacks and expanded with hot air was evaluated...
June 2017: Journal of Texture Studies
https://www.readbyqxmd.com/read/28572499/effect-of-calf-raise-training-on-rapid-force-production-and-balance-ability-in-elderly-men
#19
Ryoichi Ema, Shunsuke Ohki, Hirokazu Takayama, Yuji Kobayashi, Ryota Akagi
This study examined whether home-based, high-speed calf-raise training changes the rate of torque development during plantar flexion contractions and balance performance in elderly men. Thirty-four healthy elderly men (73 ± 5 yr) were randomly assigned to a training or control group (n = 17 in each group). The subjects in the training group completed 8 weeks (3 times/week) of home-based bilateral calf-raise training using body mass. Before and after the intervention, rate of torque development during plantar flexion contractions and center of pressure displacement during single-leg standing were measured...
June 1, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28570062/impact-of-photooxidation-and-biodegradation-on-the-fate-of-oil-spilled-during-the-deepwater-horizon-incident-advanced-stages-of-weathering
#20
Brian H Harriman, Phoebe Zito, David C Podgorski, Matthew A Tarr, Joseph M Suflita
While the biogeochemical forces influencing the weathering of spilled oil have been investigated for decades, the environmental fate and effects of "oxyhydrocarbons" in sand patties deposited on beaches are not well-known. We collected sand patties deposited in the swash zone on Gulf of Mexico beaches following the Deepwater Horizon oil spill. When sand patties were exposed to simulated sunlight, a larger concentration of dissolved organic carbon was leached into seawater than the corresponding dark controls...
June 21, 2017: Environmental Science & Technology
keyword
keyword
114867
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"