5,160 research outputs found
Normative Single Joint Isometric Hamstring Strength Scores From Professional Soccer Players During Preseason.
No full textRipley, NJ, Fahey, JT, Comfort, P, McMahon, JJ, Jones, PA, and Bramah, C. Normative single joint isometric hamstring strength scores from professional soccer players during pre-season. J Strength Cond Res XX(X): 000-000, 2025-Monitoring changes in isometric force production from the hamstrings has become increasingly common in team sports. With an increase in force plate availability in soccer, isometric hamstring assessments have become popular, yet normative benchmarks do not currently exist. The purpose of this study was to provide normative force production benchmarks for professional soccer players obtained during isometric hamstring assessments. One hundred forty-two senior professional men's soccer players (age, 24.56 ± 5.09 years; height, 183.63 ± 5.84 cm; mass, 82.12 ± 8.35 kg) performed 2 isometric assessments with 30° and 90° of hip flexion and similar knee joint angles. Mean and standard deviation were determined across 3 trials, differences between soccer positions (goalkeeper, defender, midfielder, and strikers) and differences between limbs were determined through one-way ANOVA. p value was set at <0.05, and effect size was calculated using Cohens d. Benchmarks were developed using T-scores. Trivial-moderate positional differences (d = 0.09-0.95) were observed for absolute peak force, whereas only trivial positional differences (d = 0.00-0.01) were observed for relative peak force (i.e., peak force/body mass). Trivial between limb differences (d = 0.12-0.13) were observed for assessment performed at 90°; however, small differences were observed in the 30° test (d = 0.27-0.29). Benchmark values are provided for relative peak force due to no meaningful difference between positions. Practitioners could use the normative benchmarks provided to determine training needs and establish specific goals. The isometric hamstring assessment positioned at 30° of knee and hip flexion may be more sensitive to determine interlimb differences. [Abstract copyright: Copyright © 2025 National Strength and Conditioning Association.
Chronicle (Paterson, NJ) Vol. 34, No.47, Nov. 18, 1962
No full textLocal information pertaining to Paterson, N.J. and surrounding Passaic County. Issues may include events, government, business, political cartoons, engagement and marriage announcements, and birth announcements. This publication was also known as the Paterson Chronicle (1952) and the Paterson Sunday Chronicle (1951-1952)
Resilience of NJ Transit assets to climate impacts
No full textFirst Environment developed this report under the guidance of New Jersey Transit to determine the potential risks of weather related events and impacts on its stationary assets. This research includes a survey of current reports and research on the topic; identifies and maps specific impacts to New Jersey Transit assets - commuter rail, light rail and bus; compiles national and international agency efforts underway regarding Transit strategies to protect assets; determines appropriate resilience strategies for the impacts identified; provides a summary level costs and benefits for each of the resilience strategies identified; and summarizes and highlights cost effective strategies to maintain NJ TRANSIT current and planned future services. This report provides a regional overview and can be used to identify critical impacts on assets and take appropriate measures to reduce its vulnerability to extreme weather
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Molecular cloning and functional analyses of glutathione peroxidase homologous genes from Chlorella sp NJ-18
No full textPhotosynthetic organisms often encounter oxidative stresses due to changes of environmental conditions. In this study, two glutathione peroxidase (GPX) homologous genes, namely NJ-18Gpx1 and NJ-18Gpx2, were identified in Chlorella sp. NJ-18, a single-celled green alga. The two NJ-18Gpx genes can produce 2 or 3 transcript variants by alternative splicing, predicted to encode 4 non-selenium GPX proteins (NS-GPX). Expression of the two genes was analyzed by quantitative RT-PCR in Chlorella sp. NJ-18 exposed to various treatments known to generate reactive oxygen species. Neutral red, a singlet oxygen-generating photosensitizer, significantly increased the expression of NJ-18Gpx1 within 5 h. Exposure of algal culture to UV-B for 3 h caused up-regulation of mRNA levels of NJ-18Gpx1 and NJ-18Gpx2 by 4- and 50-folds, respectively. Similar to CrGPX5 and CrGPX3 in Chlamydomonas reinhardtii, purified recombinant NJ-18GPXs showed activities of thioredoxin-dependent peroxidases that catalyze the reduction of hydrogen peroxide and organic hydroperoxides. The V-max values for NJ-18GPX1 toward different peroxides were approximately 10-fold higher than those for NJ-18GPX2. In addition, overexpression of NJ-18Gpx1 in Synechocystis sp. PCC 6803, a cyanobacterium, enhanced its tolerance to neutral red and H2O2. These results indicate that NJ-18GPXs can act as efficient peroxide scavengers protecting cells from oxidative damages in Chlorella. (C) 2012 Elsevier B.V. All rights reserved.Photosynthetic organisms often encounter oxidative stresses due to changes of environmental conditions. In this study, two glutathione peroxidase (GPX) homologous genes, namely NJ-18Gpx1 and NJ-18Gpx2, were identified in Chlorella sp. NJ-18, a single-celled green alga. The two NJ-18Gpx genes can produce 2 or 3 transcript variants by alternative splicing, predicted to encode 4 non-selenium GPX proteins (NS-GPX). Expression of the two genes was analyzed by quantitative RT-PCR in Chlorella sp. NJ-18 exposed to various treatments known to generate reactive oxygen species. Neutral red, a singlet oxygen-generating photosensitizer, significantly increased the expression of NJ-18Gpx1 within 5 h. Exposure of algal culture to UV-B for 3 h caused up-regulation of mRNA levels of NJ-18Gpx1 and NJ-18Gpx2 by 4- and 50-folds, respectively. Similar to CrGPX5 and CrGPX3 in Chlamydomonas reinhardtii, purified recombinant NJ-18GPXs showed activities of thioredoxin-dependent peroxidases that catalyze the reduction of hydrogen peroxide and organic hydroperoxides. The V-max values for NJ-18GPX1 toward different peroxides were approximately 10-fold higher than those for NJ-18GPX2. In addition, overexpression of NJ-18Gpx1 in Synechocystis sp. PCC 6803, a cyanobacterium, enhanced its tolerance to neutral red and H2O2. These results indicate that NJ-18GPXs can act as efficient peroxide scavengers protecting cells from oxidative damages in Chlorella. (C) 2012 Elsevier B.V. All rights reserved
Variations on the Author
No full text“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Chronicle (Paterson, NJ) Vol. 33, No. 22, May 28, 1961
No full textLocal information pertaining to Paterson, N.J. and surrounding Passaic County. Issues may include events, government, business, political cartoons, engagement and marriage announcements, and birth announcements. This publication was also known as the Paterson Chronicle (1952) and the Paterson Sunday Chronicle (1951-1952)
Chronicle (Paterson, NJ) Vol. 33, No. 27, Jul. 2, 1961
No full textLocal information pertaining to Paterson, N.J. and surrounding Passaic County. Issues may include events, government, business, political cartoons, engagement and marriage announcements, and birth announcements. This publication was also known as the Paterson Chronicle (1952) and the Paterson Sunday Chronicle (1951-1952)
Chronicle (Paterson, NJ) Vol. 33, No. 28, Jul. 9, 1961
No full textLocal information pertaining to Paterson, N.J. and surrounding Passaic County. Issues may include events, government, business, political cartoons, engagement and marriage announcements, and birth announcements. This publication was also known as the Paterson Chronicle (1952) and the Paterson Sunday Chronicle (1951-1952)
Chronicle (Paterson, NJ) Vol. 31, No. 30, Jul. 26, 1959
No full textLocal information pertaining to Paterson, N.J. and surrounding Passaic County. Issues may include events, government, business, political cartoons, engagement and marriage announcements, and birth announcements. This publication was also known as the Paterson Chronicle (1952) and the Paterson Sunday Chronicle (1951-1952)
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