263,934 research outputs found
Barbell Hip-Thrust Exercise: Test-Retest Reliability and Correlation With Isokinetic Performance
No full textDello Iacono, A, Padulo, J, Bešlija, T, and Halperin, I. Barbell hip-thrust exercise: Test-retest reliability and correlation with isokinetic performance. J Strength Cond Res XX(X): 000-000, 2018- The barbell hip-thrust (BHT) exercise is growing in popularity as evident by the large increase in research outputs investigating its utility as a training intervention and a testing tool. The aim of this study was to examine the test-retest reliability of the BHT and its correlation with isokinetic performance. Test-retest reliability was established by correlating the peak force and power outcomes measured with the BHT force-velocity profile test of 20 handball athletes on 2 separate days. The peak force and power measured with the BHT force-velocity profile test of 49 handball athletes were correlated with peak concentric force of the knee flexors and hip extensors measured with an isokinetic device at 2 different velocities (60-180°·s). The correlation between the isokinetic testing scores and the BHT force-velocity profile tests were moderate to large (Pearson r ranges: 0.45-0.86, all p values <0.001). Test-retest reliability of the BHT force-velocity profile was very high as shown with intraclass correlations of 0.94 and 0.99 for peak force and 0.97 and 0.99 for peak power measures. The BHT force-velocity profile can serve as a tentative substitute in cases that athletes do not have access to an isokinetic device, given the moderate to large correlations between them. Moreover, the BHT force-velocity profile was shown to be very reliable, thus providing coaches and scientists a range of day-to-day performance variability in this exercise
Los territorios latinoamericanos de Tulio Halperin Donghi
No full textIn this work I intend to ponder the impact of Tulio Halperin Donghi on Latin American historiography. I venture into the following topics that delineate my queries: How did Tulio Halperin Donghi become a historian of Latin America and what were his main features as a Latin-American historian? What were his major contributions in the field of Latin American history? How were his major contributions to Latin American historiography received by the practitioners of this field of history?En este trabajo propongo una interrogación sobre el impacto de la obra de Tulio Halperin Donghi sobre la historiografía latinoamericanista. Incursiono en los los siguientes temas que delinean esa interrogación: ¿Cómo se produjo la aproximación de Tulio Halperin Donghi a la historia latinoamericana y cuáles fueron sus características como latinoamericanista? ¿Cuáles fueron sus aportes principales en el campo de la historia latinoamericana? ¿Cómo fueron recibidas sus principales propuestas en el campo de la historia latinoamericana
The effects of positive and negative verbal feedback on repeated force production
No full textRaw dat
Tulio Halperin Donghi’s Latin American Territories
No full textEn este trabajo propongo una interrogación sobre el impacto de la obra de Tulio Halperin Donghi sobre la historiografía latinoamericanista. Incursiono en los los siguientes temas que delinean esa interrogación: ¿Cómo se produjo la aproximación de Tulio Halperin Donghi a la historia latinoamericana y cuáles fueron sus características como latinoamericanista? ¿Cuáles fueron sus aportes principales en el campo de la historia latinoamericana? ¿Cómo fueron recibidas sus principales propuestas en el campo de la historia latinoamericana?In this work I intend to ponder the impact of Tulio Halperin Donghi on Latin American historiography. I venture into the following topics that delineate my queries: How did Tulio Halperin Donghi become a historian of Latin America and what were his main features as a Latin-American historian? What were his major contributions in the field of Latin American history? How were his major contributions to Latin American historiography received by the practitioners of this field of history?Fil: Paz, Gustavo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Saavedra 15. Instituto de Historia Argentina y Americana "Dr. Emilio Ravignani". Universidad de Buenos Aires. Facultad de Filosofía y Letras. Instituto de Historia Argentina y Americana "Dr. Emilio Ravignani"; Argentin
Prediction and targeted prevention of Parkinson's and Alzheimer's diseases
No full textIl capitolo non dispone di abstrac
Biomarkers for prediction and targeted prevention of Alzheimer’s and Parkinson’s diseases: evaluation of drug clinical efficacy
No full textNeurodegenerative diseases like Parkinson’s disease
(PD) and Alzheimer’s disease (AD) are considered
disorders of multifactorial origin, inevitably progressive and
having a long preclinical period. Therefore, the availability
of biological markers or biomarkers (BMs) for early disease
diagnosis will impact the management of AD and PD in
several dimensions; it will 1) help to capture high-risk
individuals before symptoms develop, a stage where
prevention efforts might be expected to have their greatest
impact; 2) provide a measure of disease progression that
can be evaluated objectively, while clinical measures are
much less accurate; 3) help to discriminate between true
AD or PD and other causes of a similar clinical syndrome;
4) delineate pathophysiological processes responsible for
the disease; 5) determine the clinical efficacy of novel,
disease-modifying (neuroprotective) strategies. In the long
run the availability of reliable BMs will significantly
advance the research and therapeutics of AD and PD
Biomarkers for evaluation of clinical efficacy of multipotential neuroprotective drugs for Alzheimer's and Parkinson's diseases
No full textDuring the last century, the world population has shown a staggering increase in its proportion of elderly members and thus neurodegenerative diseases like Alzheimer's disease (AD) and Parkinson's disease (PD), respectively, are becoming an increasing burden on society. Among the diverse, significant challenges facing clinicians, is the improvement of diagnostic measures to detect early and subtle symptoms, a phase in which prevention efforts might be expected to have their greatest impact and provide a measure of disease progression that can be evaluated during the course of drug treatment. At present, clinical diagnosis of AD and PD is based on a constellation of symptoms and manifestations, although the disease originated several years earlier. Given the multiple etiological nature of AD and PD, it is reasonable to assume that the initial causative pathobiological processes may differ between the affected individuals. Therefore, the availability of biological markers or biomarkers will help not only early disease diagnosis, but also delineate the pathological mechanisms more definitively and reliably than the traditional cognitive and neurological phenotypes. In the current article, we review the literature on biochemical, genetic, and neuroimaging biomarkers and discuss their predictive value as indicative for disease vulnerability to detect individuals at risk for PD and AD, and to determine the clinical efficacy of novel, disease-modifying (neuroprotective) strategies
Perspectives of the River Plate around the time of Rosas : an analysis based upon the personal correspondence, private memoirs and published accounts of British settlers, as well as works by creole authors
No full textThis thesis draws inspiration from the emergence of cultural studies as an academic
pursuit, in addition to the current renewal of interest in the relationship between
literary works and their socio-cultural milieux, to bring together an assortment of
textual traces pertaining to the River Plate around the era of Juan Manuel de Rosas,
governor of Buenos Aires and de facto dictator of Argentina for most of the period
1829-1852. The main texts analysed range from private documents relating to two
Scottish settler families, through accounts published by British citizens with first-hand
knowledge of the region (Un inglés, Cinco años en Buenos Aires and
Beaumont, Travels in Buenos Ayres and the Adjacent Provinces), to three influential
pieces of early Argentinian literature (Echeverria's El matadero, Mármol's Amalia
and Sarmiento's Facundo). One justification of this apparently eclectic approach lies
in the prominence accorded to the incomer in the thought of liberal Platine
intellectuals, a concern evinced in their literary production.
The methodology involves examining the representation of certain
fundamental topics across this range of written artefacts, observing frequent points of
thematic convergence amongst the various texts. In this fashion, I construct an image
of the River Plate region around the Rosas period, whilst also appraising the degree
to which early British settlers matched the idealized notion of the immigrant present
in liberal creole writings.
The study is divided into four main chapters, supplemented by an
introduction, conclusion and appendix. The first chapter summarizes the historical
context of the young Platine republics; the second deals with the themes of society,
community and family, the third focuses upon religion; the fourth considers
perspectives of politics, dictatorship and civil war. The appendix consists of an
unpublished settler autobiography, a remarkable account of the tribulations faced on
a daily basis in the developing Argentina
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
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