scholarly journals Estudio de las temáticas y contenidos de las tesis doctorales realizadas en España sobre Biomecánica Deportiva (Study of the themes and contents of the doctoral theses carried out in Spain on Sports Biomechanics)

Retos ◽  
2021 ◽  
Vol 44 ◽  
pp. 525-533
Author(s):  
Jose Campos Granel ◽  
Marcos Gutiérrez-Dávila ◽  
José María Campos Coll

  El objeto del estudio es conocer y valorar la evolución de las temáticas y contenidos de las tesis doctorales que se han leído en España sobre Biomecánica Deportiva durante el periodo comprendido entre los años 1980 y 2019. La muestra está compuesta de 233 tesis después de un proceso de selección con el uso de criterios de inclusión/exclusión y términos de búsqueda específicos. Los resultados demuestran que existe un crecimiento progresivo en la producción de tesis doctorales a lo largo del tiempo con incrementos progresivos, especialmente en el tercer y cuarto periodo. Los campos temáticos con mayor número de tesis leídas son los de Biomecánica de Apoyo y de Biomecánica Aplicada. El campo de Biomecánica Básica resulta residual, con tres tesis leídas a lo largo del periodo investigado. En la Biomecánica de Apoyo, el subcampo más representado y con un crecimiento constante, es el del Área Médica, con 73 tesis leídas que representa el 68,2% del total del campo temático. En la Biomecánica Aplicada, los subcampos con más tesis leídas son los de Análisis de la Técnica Deportiva y de Análisis del Movimiento con 35 y 32 tesis leídas, respectivamente, sin que se observe un crecimiento constante a lo largo del tiempo. El campo de Biomecánica-Tecnologías es el tercero con un 10,7% de las tesis leídas. El término más utilizado en los títulos de las tesis es el de la “marcha” que se convierte en un tema transversal que ha sido abordado desde diferentes perspectivas científicas.  Abstract: The purpose of the study is to know and assess the evolution of the themes and contents of the doctoral theses that have been read in Spain on Sports Biomechanics during the period between 1980 and 2019. The sample is made up of 233 theses after a selection process with the use of inclusion / exclusion criteria and specific search terms. The results show that there is a progressive growth in the production of doctoral theses over time with progressive increases, especially in the third and fourth periods. The thematic fields with the highest number of theses read are Support Biomechanics and Applied Biomechanics. The Basic Biomechanics field is a residual field with 3 theses read over time. In Support Biomechanics, the most represented subfield with constant growth is the Medical Area with 73 theses read, representing 68.2% of the total thematic field. In Applied Biomechanics, the subfields with the most theses read are the Analysis of Sports Technique and Analysis of Movement with 35 and 32 theses read, with no constant growth observed over time. The Biomechanics-Technologies field is the third with 10.7% of the theses read. The term most used in the thesis titles is "walking", which becomes a cross-cutting theme that has been approached from different scientific perspectives.

Author(s):  
Ben Epstein

This chapter shifts the focus to the third and final stabilization phase of the political communication cycle (PCC). During the stabilization phase, a new political communication order (PCO) takes shape through the building of norms, institutions, and regulations that serve to fix the newly established status quo in place. This status quo occurs when formerly innovative political communication activities become mundane, yet remain powerful. Much of the chapter details the pattern of communication regulation and institution construction over time. In particular, this chapter explores the instructive similarities and key differences between the regulation of radio and the internet, which offers important perspectives on the significance of our current place in the PCC and the consequences of choices that will be made over the next few years.


2006 ◽  
Vol 30 (1) ◽  
pp. 20-25 ◽  
Author(s):  
David A. Cole

Many outcome variables in developmental psychopathology research are highly stable over time. In conventional longitudinal data analytic approaches such as multiple regression, controlling for prior levels of the outcome variable often yields little (if any) reliable variance in the dependent variable for putative predictors to explain. Three strategies for coping with this problem are described. One involves focusing on developmental periods of transition, in which the outcome of interest may be less stable. A second is to give careful consideration to the amount of time allowed to elapse between waves of data collection. The third is to consider trait-state-occasion models that partition the outcome variable into two dimensions: one entirely stable and trait-like, the other less stable and subject to occasion-specific fluctuations.


2021 ◽  
pp. 112067212110053
Author(s):  
Moustafa Salamah ◽  
Ashraf Mahrous Eid ◽  
Hani Albialy ◽  
Sherif Sharaf EL Deen

Purpose: To compare the efficacy of two different suture types in levator plication for correction of congenital ptosis. Subjects and methods: Prospective comparative interventional randomized study involving 42 eyes of 42 patients aged more than 6 years with congenital ptosis and good levator action. The exclusion criteria were as follows: bilateral ptosis, history of previous surgery, fair or poor levator action, and associated other ocular diseases. Patients were randomized into group A, in which double-armed 5/0 polyester Ethibond were used, and group B, in which double-armed 5/0 Coated Vicryl® (polyglactin 910) suture material we used. Outcomes including eyelid height and stability of eyelid height over time were compared with follow-up data. The MRD was 4.05 ± 0.36 mm and 3.95 ± 0.34 after 1 week for both groups A and B, respectively. At the end of study follow up period (24 weeks), the MRD was 3.60 ± 0.42 mm in group A, and 2.52 ± 0.85 mm in group B. Conclusion: No difference in eyelid height between two groups in early postoperative period, but the postoperative eyelid height was more stable over time in the 5/0 polyester Ethibond group (group A) than in the 5/0 Coated Vicryl® (polyglactin 910) group (group B).


Molecules ◽  
2021 ◽  
Vol 26 (9) ◽  
pp. 2573
Author(s):  
Yi-Hsiu Chung ◽  
Cheng-Kun Tsai ◽  
Ching-Fang Yu ◽  
Wan-Ling Wang ◽  
Chung-Lin Yang ◽  
...  

Purpose: By taking advantage of 18F-FDG PET imaging and tissue nuclear magnetic resonance (NMR) metabolomics, we examined the dynamic metabolic alterations induced by liver irradiation in a mouse model for hepatocellular carcinoma (HCC). Methods: After orthotopic implantation with the mouse liver cancer BNL cells in the right hepatic lobe, animals were divided into two experimental groups. The first received irradiation (RT) at 15 Gy, while the second (no-RT) did not. Intergroup comparisons over time were performed, in terms of 18F-FDG PET findings, NMR metabolomics results, and the expression of genes involved in inflammation and glucose metabolism. Results: As of day one post-irradiation, mice in the RT group showed an increased 18F-FDG uptake in the right liver parenchyma compared with the no-RT group. However, the difference reached statistical significance only on the third post-irradiation day. NMR metabolomics revealed that glucose concentrations peaked on day one post-irradiation both, in the right and left lobes—the latter reflecting a bystander effect. Increased pyruvate and glutamate levels were also evident in the right liver on the third post-irradiation day. The expression levels of the glucose-6-phosphatase (G6PC) and fructose-1, 6-bisphosphatase 1 (FBP1) genes were down-regulated on the first and third post-irradiation days, respectively. Therefore, liver irradiation was associated with a metabolic shift from an impaired gluconeogenesis to an enhanced glycolysis from the first to the third post-irradiation day. Conclusion: Radiation-induced metabolic alterations in the liver parenchyma occur as early as the first post-irradiation day and show dynamic changes over time.


2014 ◽  
Vol 2 (1) ◽  
Author(s):  
Adegoke Oloruntoba Adelufosi ◽  
Olukayode Abayomi

The Nigerian home video industry, popularly known as <em>Nollywood</em> is a booming industry, with increasing numbers of easily accessible online videos. The aim of this study was to analyse the contents of popular Nigerian online videos to determine the prevalence of smoking imageries and their public health implications. Using specific search terms, popular English language and indigenous Yoruba language, Nigerian home videos uploaded on <em>YouTube</em> in 2013 were identified and sorted based on their view counts. Data on smoking related scenes such as smoking incidents, context of tobacco use, depiction of cigarette brand, gender of smokers and film rating were collected. Of the 60 online videos whose contents were assessed in this study, 26 (43.3%) had scenes with cigarrete smoking imageries. The mean (SD) smoking incident was 2.7 (1.6), giving an average of one smoking incident for every 26 to 27 min of film. More than half (53.8%) of the films with tobacco use had high smoking imageries. An average of 2 characters per film smoked, mostly in association with acts of criminality or prostitution (57.7%) and alcohol use (57.7%). There were scenes of the main protagonists smoking in 73.1% of the films with scenes of female protagonists smoking (78.9%) more than the male protagonists (21.1%). Smoking imageries are common in popular Nigerian online movies. Given the wide reach of online videos, their potential to be viewed by people from different cultures and to negatively influence youngsters, it is important that smoking portrayals in online movies are controlled.


1990 ◽  
Vol 80 ◽  
pp. 74-96 ◽  
Author(s):  
Elizabeth A. Meyer

It is now notorious that the production of inscriptions in the Roman Empire was not constant over time, but rose over the first and second centuries A.D. and fell in the third. Ramsay MacMullen pointed this out more than five years ago, with conclusions more cautionary than explanatory: ‘history is not being written in the right way’, he said, for historians have deduced Rome's decline from evidence that–since it appears only epigraphically–has merely disappeared for its own reasons, or have sought general explanations of decline in theories political, economic, or even demographic in nature, none of which can, in turn, explain the disappearance of epigraphy itself. Why this epigraphic habit rose and fell MacMullen left open to question, although he did postulate control by a ‘sense of audience’. The purpose of this paper is to propose that this ‘sense of audience’ was not generalized or generic, but depended on a belief in the value of romanization, of which (as noted but not explained by MacMullen's article) the epigraphic habit is also a rough indicator. Epitaphs constitute the bulk of all provincial inscriptions and in form and number are (generally speaking) the consequence of a provincial imitation of characteristically Roman practices, an imitation that depended on the belief that Roman legal status and style were important, and that may indeed have ultimately depended, at least in North Africa, on the acquisition or prior possession of that status. Such status-based motivations for erecting an epitaph help to explain not only the chronological distribution of epitaphs but also the differences in the type and distribution of epitaphs in the western and eastern halves of the empire. They will be used here moreover to suggest an explanation for the epigraphic habit as a whole.


2017 ◽  
Vol 12 (3) ◽  
pp. 155-162 ◽  
Author(s):  
Raffaele Giusti ◽  
Paolo Bossi ◽  
Marco Mazzotta ◽  
Marco Filetti ◽  
Daniela Iacono ◽  
...  

Background: Head and neck (H&N) cancers account for about 5% of all malignant tumours. Pain is one of the most feared consequences of H&N neoplasms and is experienced by up to 80% of patients and worsens their quality of life inhibiting speaking, eating, drinking or swallowing. Nevertheless, pain is still often underestimated and undertreated. Objectives: The role of opioids in cancer pain has been well established but evidences about the role and the relative effectiveness of opioids such as fentanyl in the context of H&N cancer pain remains unclear. Methods: A literature review based on the guidance of the Centre for Reviews and Dissemination was conducted. An iterative approach was used starting with an electronic search in the MEDLINE database. The search terms ((‘Neoplasms’[Mesh]) AND ‘Head and Neck Neoplasms’[Mesh]) AND ‘Fentanyl’[Mesh] were used. Results: A total of 18 publications were found by the first performed search on PubMed. Other publications concordant with our aim were found by cross-reference. Considering inclusion and exclusion criteria for our review, eight papers resulted eligible for analysis. Conclusion: Fentanyl transdermal therapeutic system (TTS) seems to be an important option, thanks to the way of administration, the good safety and tolerability profiles to control baseline pain. For breakthrough cancer pain (BTcP), several formulations of transmucosal fentanyl are available. All the formulations seem to be active and safety but we lack head-to-head studies of fentanyl versus other strong opioids, as well as with different formulation of fentanyl, particularly for BTcP where H&N cancer population is very poorly represented.


Author(s):  
Daniela Loconsole ◽  
Francesca Centrone ◽  
Caterina Morcavallo ◽  
Silvia Campanella ◽  
Anna Sallustio ◽  
...  

Epidemiological and virological studies have revealed that SARS-CoV-2 variants of concern (VOCs) are emerging globally, including in Europe. The aim of this study was to evaluate the spread of B.1.1.7-lineage SARS-CoV-2 in southern Italy from December 2020–March 2021 through the detection of the S gene target failure (SGTF), which could be considered a robust proxy of VOC B.1.1.7. SGTF was assessed on 3075 samples from week 52/2020 to week 10/2021. A subset of positive samples identified in the Apulia region during the study period was subjected to whole-genome sequencing (WGS). A descriptive and statistical analysis of the demographic and clinical characteristics of cases according to SGTF status was performed. Overall, 20.2% of samples showed SGTF; 155 strains were confirmed as VOC 202012/01 by WGS. The proportion of SGTF-positive samples rapidly increased over time, reaching 69.2% in week 10/2021. SGTF-positive cases were more likely to be symptomatic and to result in hospitalization (p < 0.0001). Despite the implementation of large-scale non-pharmaceutical interventions (NPIs), such as the closure of schools and local lockdowns, a rapid spread of VOC 202012/01 was observed in southern Italy. Strengthened NPIs and rapid vaccine deployment, first among priority groups and then among the general population, are crucial both to contain the spread of VOC 202012/01 and to flatten the curve of the third wave.


2011 ◽  
Vol 57 (4) ◽  
pp. 449-452 ◽  
Author(s):  
Javier Delbarco-Trillo ◽  
Robert E. Johnston

Abstract In many species, agonistic interactions result in social relationships that are stable over time. In Syrian hamsters, two unfamiliar males that are placed together will fight vigorously and a clear winner/loser relationship is usually established. In subsequent interactions, the loser will flee soon after detecting the familiar winner. Here we tested the hypothesis that losing a fight with a conspecific will affect future agonistic interactions not only toward that individual (i.e., the familiar winner) but also toward unfamiliar conspecifics. To test this hypothesis we paired two Syrian hamster males in three trials on one day in which the loser had the opportunity to escape the winner. The next day the loser was paired with an unfamiliar male, also for three trials. If he lost again, he was tested on a third day with a third unfamiliar male. Subjects were those males that were losers on all three days. The latency to escape on the first trial on Days 2 and 3 was significantly shorter than on the first trial on Day 1, indicating that losing against the first male affected the response toward unfamiliar males. However, the latency to escape on the first trial on Days 2 and 3 was significantly longer than that on the third trial on the preceding day, indicating that a loser treats unfamiliar males differently than a familiar winner. These results suggest that a defeat during an interaction with one male affects later agonistic behavior towards other, unfamiliar males.


Author(s):  
Shusaku Sasaki ◽  
Hirofumi Kurokawa ◽  
Fumio Ohtake

AbstractNudge-based messages have been employed in various countries to encourage voluntary contact-avoidance and infection-prevention behaviors to control the spread of COVID-19. People have been repeatedly exposed to such messages; however, whether the messages keep exerting a significant impact over time remains unclear. From April to August 2020, we conducted a four-wave online survey experiment to examine how five types of nudge-based messages influence Japanese people’s self-reported preventive behaviors. In particular, we investigate how their behaviors are affected by repeated displays over time. The analysis with 4241 participants finds that only a gain-framed altruistic message, emphasizing their behavioral adherence would protect the lives of people close to them, reduces their frequency of going out and contacting others. We do not find similar behavioral changes in messages that contain an altruistic element but emphasize it in a loss-frame or describe their behavioral adherence as protecting both one’s own and others’ lives. Furthermore, the behavioral change effect of the gain-framed altruistic message disappears in the third and fourth waves, although its impact of reinforcing intentions remains. This message has even an adverse effect of worsening the compliance level of infection-prevention behaviors for the subgroup who went out less frequently before the experiment. The study’s results imply that when using nudge-based messages as a countermeasure for COVID-19, policymakers and practitioners need to carefully scrutinize the message elements and wording and examine to whom and how the messages should be delivered while considering their potential adverse and side effects.


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