bluuebunny/crossref_metadata_2025 huggingface dataset:
The Stressful, Hostile, and Toxic Workplace: An Advanced Understanding of a Common Clinical Complaint
Authors: Brown Andrew O. , Couser Greg P. , Morrison David Evan , Agarwal Gaurava
Published: February 2021

Patients frequently attribute symptoms and distress to their workplace. Such workplaces are characterized as “stressful,” “hostile,” or “toxic.” Such phrases cannot serve as a substitute for clinical assessment of the patient's work problem. Proper assessment entails understanding the situation at the workplace and the patient's reaction to the situation. This article discusses several ways in which legal and psychiatric frameworks used to assess workplace problems can be mutually incompatible. Poor clinical and functional outcomes, such as chronic anxiety or depressive symptoms, separation from the workplace facilitated by prolonged claims of work incapacity, long-term unemployment, and patient involvement in protracted litigation, can occur in the absence of informed and proactive clinical engagement. This article identifies steps to consider when a patient presents with work complaints. Active and skillful engagement with patients who present with a workplace problem not only mitigates negative clinical and functional outcomes but also promotes the psychological, social, and economic well-being of the patient.

[
Psychiatr Ann
. 2021;51(2):70–75.]
Analysis of nonlinear fractional diffusion equations with a Riemann-liouville derivative
Authors: Ngoc Tran Bao , Tuan Nguyen Huy , Sakthivel R. , O'Regan Donal
Published: February 2021

In this paper, we consider a nonlinear fractional diffusion equations with a Riemann-Liouville derivative. First, we establish the global existence and uniqueness of mild solutions under some assumptions on the input data. Some regularity results for the mild solution and its derivatives of fractional orders are also derived. Our key idea is to combine the theories of Mittag-Leffler functions, Banach fixed point theorem and some Sobolev embeddings.
On the identification of the nonlinearity parameter in the Westervelt equation from boundary measurements
Authors: Kaltenbacher Barbara , Rundell William
Published: February 2021

We consider an undetermined coefficient inverse problem for a nonlinear partial differential equation occurring in high intensity ultrasound propagation as used in acoustic tomography. In particular, we investigate the recovery of the nonlinearity coefficient commonly labeled as \begin{document}$ B/A $\end{document} in the literature which is part of a space dependent coefficient \begin{document}$ \kappa $\end{document} in the Westervelt equation governing nonlinear acoustics. Corresponding to the typical measurement setup, the overposed data consists of time trace measurements on some zero or one dimensional set \begin{document}$ \Sigma $\end{document} representing the receiving transducer array. After an analysis of the map from \begin{document}$ \kappa $\end{document} to the overposed data, we show injectivity of its linearisation and use this as motivation for several iterative schemes to recover \begin{document}$ \kappa $\end{document}. Numerical simulations will also be shown to illustrate the efficiency of the methods.
The finite-time ruin probability of a risk model with a general counting process and stochastic return
Authors: Xun Baoyin , Yuen Kam C. , Wang Kaiyong
Published: February 2021

This paper considers a general risk model with stochastic return and a Brownian perturbation, where the claim arrival process is a general counting process and the price process of the investment portfolio is expressed as a geometric Lévy process. When the claim sizes are pairwise strong quasi-asymptotically independent random variables with heavy-tailed distributions, the asymptotics of the finite-time ruin probability of this risk model have been obtained.
Sciences en danger, revues en lutte
Authors: des revues en lutte Collectif , Noûs Camille , rédaction Comité de
Published: February 2021

Depuis le début de l’année 2020, plus de 150 revues académiques, en grande majorité issues des sciences humaines et sociales françaises, se déclarent les unes « en lutte », les autres « en grève ». Prenant part au mouvement social en cours, leurs comités de rédaction protestent à la fois contre le projet visant les retraites, contre la réforme de l’assurance chômage adoptée à l’automne 2019 et contre les propositions contenues dans les rapports pour la loi de programmation pluriannuelle de la recherche (LPPR).
THE TRANSFORMATIVE MIND: EXPANDING VYGOTSKY’S APPROACH TO DEVELOPMENT AND EDUCATION
Authors: Selau Bento
Published: February 2021

Review (Stetsenko, A. (2017). The Transformative Mind: Expanding Vygotsky’s Approach to Development and Education. New York, NY: Cambridge University Press. 331 p.)
Asah2 Represses the p53–Hmox1 Axis to Protect Myeloid-Derived Suppressor Cells from Ferroptosis
Authors: Zhu Huabin , Klement John D. , Lu Chunwan , Redd Priscilla S. , Yang Dafeng , Smith Alyssa D. , Poschel Dakota B. , Zou Juan , Liu Ding , Wang Peng George , Ostrov David , Coant Nicolas , Hannun Yusuf A. , Colby Aaron H. , Grinstaff Mark W. , Liu Kebin
Published: February 2021

Myeloid-derived suppressor cells (MDSCs) are immune suppressive cells that massively accumulate under pathological conditions to suppress T cell immune response. Dysregulated cell death contributes to MDSC accumulation, but the molecular mechanism underlying this cell death dysregulation is not fully understood. In this study, we report that neutral ceramidase (N-acylsphingosine amidohydrolase [ASAH2]) is highly expressed in tumor-infiltrating MDSCs in colon carcinoma and acts as an MDSC survival factor. To target ASAH2, we performed molecular docking based on human ASAH2 protein structure. Enzymatic inhibition analysis of identified hits determined NC06 as an ASAH2 inhibitor. Chemical and nuclear magnetic resonance analysis determined NC06 as 7-chloro-2-(3-chloroanilino)pyrano[3,4-e][1,3]oxazine-4,5-dione. NC06 inhibits ceramidase activity with an IC50 of 10.16–25.91 μM for human ASAH2 and 18.6–30.2 μM for mouse Asah2 proteins. NC06 induces MDSC death in a dose-dependent manner, and inhibition of ferroptosis decreased NC06-induced MDSC death. NC06 increases glutathione synthesis and decreases lipid reactive oxygen species to suppress ferroptosis in MDSCs. Gene expression profiling identified the p53 pathway as the Asah2 target in MDSCs. Inhibition of Asah2 increased p53 protein stability to upregulate Hmox1 expression to suppress lipid reactive oxygen species production to suppress ferroptosis in MDSCs. NC06 therapy increases MDSC death and reduces MDSC accumulation in tumor-bearing mice, resulting in increased activation of tumor-infiltrating CTLs and suppression of tumor growth in vivo. Our data indicate that ASAH2 protects MDSCs from ferroptosis through destabilizing p53 protein to suppress the p53 pathway in MDSCs in the tumor microenvironment. Targeting ASAH2 with NC06 to induce MDSC ferroptosis is potentially an effective therapy to suppress MDSC accumulation in cancer immunotherapy.
Functional Analysis of Immune Signature Genes in Th1* Memory Cells Links ISOC1 and Pyrimidine Metabolism to IFN-γ and IL-17 Production
Authors: Kushnareva Yulia , Mathews Ian T. , Andreyev Alexander Y. , Altay Gokmen , Lindestam Arlehamn Cecilia S. , Pandurangan Vijayanand , Nilsson Roland , Jain Mohit , Sette Alessandro , Peters Bjoern , Sharma Sonia
Published: February 2021

CCR6+CXCR3+CCR4−CD4+ memory T cells, termed Th1*, are important for long-term immunity to Mycobacterium tuberculosis and the pathogenesis of autoimmune diseases. Th1* cells express a unique set of lineage-specific transcription factors characteristic of both Th1 and Th17 cells and display distinct gene expression profiles compared with other CD4+ T cell subsets. To examine molecules and signaling pathways important for the effector function of Th1* cells, we performed loss-of-function screening of genes selectively enriched in the Th1* subset. The genetic screen yielded candidates whose depletion significantly impaired TCR-induced IFN-γ production. These included genes previously linked to IFN-γ or M. tuberculosis susceptibility and novel candidates, such as ISOC1, encoding a metabolic enzyme of unknown function in mammalian cells. ISOC1-depleted T cells, which produced less IFN-γ and IL-17, displayed defects in oxidative phosphorylation and glycolysis and impairment of pyrimidine metabolic pathway. Supplementation with extracellular pyrimidines rescued both bioenergetics and IFN-γ production in ISOC1-deficient T cells, indicating that pyrimidine metabolism is a key driver of effector functions in CD4+ T cells and Th1* cells. Results provide new insights into the immune-stimulatory function of ISOC1 as well as the particular metabolic requirements of human memory T cells, providing a novel resource for understanding long-term T cell–driven responses.
Senior Interior Design Students’ Perceptions about Distance Learning in the Shadow of Covid-19
Authors: Fallatah Samaher A.
Published: February 2021

Background

Like many international universities and institutions of higher education that have shifted the entire educational system from the traditional face-to-face education model to distance learning during the COVID-19 pandemic, universities in Saudi Arabia have expended great effort to change the behavior of educators and students to accommodate the transition. This rapid shift has had a significant impact on students, especially in programs such as interior design, in which different practical courses are taught along with the theoretical ones. Therefore, this study aimed to investigate the benefits and challenges senior interior design students experienced while taking their classes online.

Design and Methods

The current paper has adopted a qualitative approach for assessing the data obtained. Semi-structured interview was used to collect all the needed information regarding participants’ opinions about distance learning.

Results

Increased time to spend on assignments, reduction of costs to the student, and improvement in achievement of learning outcomes were the three main benefits students reported in their experience of distance learning. On the other hand, technical issues, changes in grade distribution, and changes in project types were identified as student concerns. Although students found many advantages in communicating with others remotely, some issues arose.

Conclusions

Students expressed a preference for the hybrid learning method, or at least for having their exams, juries, and presentations on campus in person, not remotely.
Assessment of the Work Conditions of Small Slaughterhouses in the Thi-Qar Governorate in Iraq
Authors: Naser Abed Sameeha , Kadhim Rusul Abdulhameed , Abbas Dhakam Mohammed
Published: February 2021

Background

Working conditions have a vital role to play in determining health and disability. So, the objective of this study was to assess the work conditions of small slaughterhouses in the Thi-Qar governorate in Iraq.

Design and methods

This study is a cross-sectional field survey. A total of twenty-six (26) small slaughterhouses were included as a sample size from the Thi-Qar governorate. The data collection was done by observations of the authors using a questionnaire and specific questions were also directed to the slaughterhouse workers if needed. It was conducted between February and April 2018. The study was planned to demonstrate the current status of small slaughterhouses in terms of water supply facilities, quality of small slaughterhouses building, sanitation practices.

Results

All of the small slaughterhouses had a water supply and all they had hot and cold water. Most of the small slaughterhouses had water tanks and put water pipes away from slaughter sites. The proportions ranged from 76.9 to 96.0 for the quality of small slaughterhouses building. With regard to fire safety measures, 96.2% of buildings are supplied with mobile fire extinguishing equipment according to safety and security requirements. Concerning rodent and insects’ control, sixteen (61.5%) of small slaughterhouses use insecticides and pesticides and only six (23.1%) of them use traps for rodents. Most of the small slaughterhouses’ windows (88.5%) were covered with a thin net to prevent the insects from entering.

Conclusions

The finding of this study indicated that work conditions of small slaughterhouses were generally adequate in terms of water supply facilities, sanitation practices, ventilation, fire safety measures, and rodents and insects’ control.
Captain Fantastic
Authors: Zorzi Giovanni
Published: February 2021

Non disponibile
Michele Minolli: psicoanalista costruttivista?
Authors: Dodet Maurizio
Published: February 2021

Michele Minolli ha attraversato il suo tempo accogliendo a pieno il portato della formazione psicoanalitica e allo stesso tempo ha saputo coniugare le nuove acquisizioni delle scienze umane e mediche nel loro sviluppo attuale. Il progetto di ricerca descritto nell’articolo del 1990 si è sviluppato nei suoi scritti giungendo ad accogliere la visione dell’uomo come sistema autonomo e ponendo in primo piano l’Io-soggetto e la relazione, come centro del metodo terapeutico (Minolli, 1990). Tra gli autori in ambito cognitivista Vittorio Guidano ha percorso dei sentieri molto vicini abbracciando la visione costruttivista: l’autore descrive come l’incontro tra i due metodi sia stato generativo e di stimolo per ulteriori sviluppi di una prassi nell’intervento psicoterapeutico rispettoso della soggettività.
To Michele Minolli
Authors: Kaës René
Published: February 2021

The article presents a brief interview to describe who Maestro Michele Minolli was, as a person and as a therapist, and the contribution he brought to the profession and to the vision of the relationship among human beings.
Astragalus Protects PC12 Cells from 6-Hydroxydopamine-Induced Neuronal Damage
Authors: Guo Li-Ying , Shi Feng-Lei , Li Meng , Sun Jin-Hao , Li Chuan-Gang , Liu Zeng-Xun
Published: February 2021

Accumulating evidence has already indicated that traditional Chinese medicine (TCM) possesses tremendous potential for treating neurodegenerative diseases. Astragalus, also named Huangqi, is a famous traditional medical herb that can be applied to treat cerebral ischemia and prevent neuronal degeneration. Nevertheless, the underlying mechanisms remain largely unexplored. In the present study, Astragalus-containing serum (ASMES) was prepared and added into the culture medium of PC12 cells to explore its neuroprotective effect on 6-hydroxydopamine (6-OHDA)-caused neuronal toxicity. Our data showed that ASMES significantly ameliorated the cellular viability of cultured PC12 cells against the neurotoxicity induced by 6-OHDA (P < 0.05). Moreover, ASMES significantly decreased the cell apoptosis triggered by 6-OHDA (P < 0.01). Furthermore, 2′,7′-dichlorofluorescin diacetate assay was performed to detect the changes in oxidative stress, and we showed that 6-OHDA elevated the production of reactive oxygen species (ROS), whereas ASMES significantly reversed these changes (P < 0.01). Besides, mitochondrial membrane potential (MMP) assay showed that ASMES could restore 6-OHDA-damaged MMP in cultured PC12 cells (P < 0.05). In conclusion, Astragalus could protect PC12 cells from 6-OHDA-caused neuronal toxicity, and possibly, the ROS-mediated apoptotic pathway participated in this process. Collectively, our findings provided valuable insights into the potential in treatment of neurodegenerative diseases.
Identifying the Challenges and the Critical Areas for Mounting a Better Response Against the HIV Epidemic in Low- and Middle-Income Nations
Authors: Shrivastava Saurabh RamBihariLal , Shrivastava Prateek Saurabh
Published: February 2021

HIV continues to remain one of the major public health concerns for more than 3 decades and has accounted for the deaths of 35 million people till date. Despite making considerable progress in the response against the disease, it continues to pose major threats across all the regions. This is mainly because the reach of services is inadequate and that the scale up plan is also slow. Another major challenge is the rise in the incidence of a number of conflicts and other humanitarian emergencies, which not only jeopardize the health delivery system, but also forces the people to migrate to other regions, which might again pose a major pressure on the health system of the recipient nations. This is a high time to focus on the critical areas and further strengthen the existing momentum of the HIV response by the nations. In conclusion, HIV infection is a major public health concern and all the involved sectors and stakeholders have to work together to keep the infection under check and improve the quality of life of the infected people.
Solitary Extramedullary Plasmacytoma
Authors: Sawhney Anshul , Sawhney Megha Ralli
Published: February 2021

Plasma cell tumors consist of extramedullary plasmacytoma (EMP), multiple myeloma (MM), and solitary bone plasmacytoma (SBP). EMP is defined as neoplastic proliferation of plasma cells in soft tissues. It presents as a solitary discrete mass either in soft tissue as EMP or in bone as SBP or as disseminated MM. It is a very rare manifestation. It accounts for <1% of all head-and-neck malignancies with oral cavity being the rarest.
Refractory Hypercapnic Respiratory Failure in an Elderly Female
Authors: Moleyar Vishnu Sharma , Kollanur Janso
Published: February 2021

The most common cause of hypercapnic respiratory failure is acute exacerbations of chronic obstructive pulmonary disease (AECOPD). Many other factors can contribute to hypercapnia and may lead to refractory hypercapnia in AECOPD. One of the important causes is electrolyte imbalance. We report a case of refractory hypercapnic respiratory failure in an elderly female due to postthyroidectomy hypocalcemia. The patient responded well after the correction of hypocalcemia.
Charles Bonnet Syndrome
Authors: Mohd Khan Furqan Akram , Dave Dhaval , Nirhale Satish , Rohatgi Shalesh , Rao Prajwal , Naphade Pravin
Published: February 2021

Charles Bonnet Syndrome (CBS) or visual release hallucinations are a type of psychophysical visual disturbance and the experience of complex visual hallucinations (VHs) in a person with partial or severe blindness. We present a case of 73-year-old blind male, who lost his vision due to glaucoma, presented with a history of complex VHs. The investigations for alternative pathological causes of VHs were negative and therefore, the etiology of hallucinations was attributed to CBS. Excellent response to low-dose olanzapine was seen, with complete remission by the end of 5th week after starting olanzapine.
Desflurane Versus Sevoflurane in Laparoscopic Cholecystectomy
Authors: Gahlot Divya , Ahuja Sharmila , Yadav Neha , Choudhary Sujata
Published: February 2021

Context:

Laparoscopic cholecystectomy is one of the most commonly performed minimal access surgeries nationwide, safely done as a day care procedure. Anesthetic techniques facilitating early recovery and home discharge have become the need of the hour.

Aims:

To compare early, intermediate, late recovery characteristics and time to home readiness following use of sevoflurane or desflurane as maintenance anesthesia in laparoscopic cholecystectomy in Indian subpopulation. In addition, postoperative complications such as coughing and shivering and total antiemetic and analgesic requirements postoperatively were also noted.

Settings and Design:

This was a prospective randomized study, and randomization was done by computerized random number table into two groups (30 patients in each group). Group S received sevoflurane and Group D received desflurane as maintenance agent.

Subjects and Methods:

Sixty patients of age group 18–60 years belonging to the American Society of Anesthesiologists Grade I and II undergoing laparoscopic cholecystectomy were recruited. A standard anesthesia induction was done and airway was secured with a ProSeal laryngeal mask airway of appropriate size. The patients subsequently received either sevoflurane 1%–2% or desflurane 3%–6% with 60% N2 O in O2 as per group assigned. Inhalational agent was discontinued at the time of endoscope removal. Early, intermediate, and late recovery parameters were noted.

Statistical Analysis:

The tests of significance used were parametric test (unpaired t-test) and ANOVA. The outcome measures were compared statistically using unpaired t-test and ANOVA, and P < 0.05 was considered statistically significant.

Results:

Early recovery parameters were achieved faster in patients receiving desflurane as compared to sevoflurane with no difference in time to achieve intermediate recovery and home readiness.

Conclusion:

Despite a faster early recovery with desflurane, no additional benefit in terms of home discharge and patient satisfaction was found, thus making use of either of the agents suitable for laparoscopic cholecystectomy on a day care basis.
A method for continuous-range sequence analysis with Jensen-Shannon divergence
Authors: Ré Miguel Ángel , Aguirre Varela Guillermo Gabriel
Published: February 2021

Mutual Information (MI) is a useful Information Theory tool for the recognition of mutual dependence between data sets. Several methods have been developed fore estimation of MI when both data sets are of the discrete type or when both are of the continuous type. However, MI estimation between a discrete range data set and a continuous range data set has not received so much attention. We therefore present here a method for the estimation of MI for this case, based on the kernel density approximation. This calculation may be of interest in diverse contexts. Since MI is closely related to the Jensen Shannon divergence, the method developed here is of particular interest in the problems of sequence segmentation and set comparisons.
Parasitic Gapping in Bilingual Grammar: Evidence from Wisconsin Heritage German
Authors: Bousquette Joshua , Frey Benjamin , Nützel Daniel , Putnam Michael , Salmons Joseph
Published: February 2021

We report on work with German-English bilinguals, heritage speakers of German, and their
licensing of parasitic gaps (a type of multiple gap construction) in English-to-German translation tasks. English allows such constructions variably, while European German does not. While some recent work reports that some heritage speakers have difficulty licensing null elements generally, most of our speakers allow some gaps in German. Structurally, these gaps correspond closely to the more-accessible end of Engdahl’s accessibility hierarchy for parasitic gaps (p-gaps). We suggest that this pattern reflects structural influence from socially dominant English on heritage German.
THE DEVELOPMENT OF THEORY OF MIND IN PRE-SCHOOL CHILDREN
Authors: Papachristou Eirini
Published: February 2021

In the present work, an attempt is made, through the bibliographic review, to define and clarify the term "Theory of Mind", to determine the context in which this theory was originally developed, to briefly present the scientific theories that attempted to interpret its development and finally to describe the development of Theory of Mind in pre-school children, as evidenced by the international literature.

 Article visualizations:
The Hoge Raad judgment of 20 December 2019 in the Urgenda case: an overcautious policy for reducing GHG emissions breaches Articles 2 and 8 of the European Convention on Human Rights
Authors: de Sadeleer Nicolas
Published: February 2021

The judgment of the Hoge Raad (hereafter HR) given on 20 December 2019 in the Urgenda case upheld the Court of Appeal judgment of 9 October 2018 ruling on a collective interest action brought by the Urgenda Foundation on behalf of 886 Dutch citizens objecting to the inadequacy of measures to reduce greenhouse gas (GHG) emissions in the Netherlands. The HR largely endorsed the particularly detailed advisory opinions delivered on 13 September 2019 by Procurator General F.F. Langemeijer and Advocate General M.H. Wissink. The HR judgment is of particular interest in view of the personal, temporal and substantive scope of Articles 2 and 8 of the European Convention on Human Rights (hereafter ECHR).
In recent years there has been an increasing debate on the link between climate change and positive obligations of a preventive nature that are incumbent upon States under human rights law. In the landmark Urgenda case, the HR held that, given the severity of the impact of climate change, the Dutch State is subject to a duty of care in accordance with Articles 2 (right to life) and 8 (right to privacy and family life) ECHR, which have direct effect, and is required to adopt mitigating measures. These measures must involve a 25% reduction of GHG emissions by the end of 2020, instead of the government's projected reduction of 20%. This target is deemed to be necessary so as to limit the concentration of GHG in the atmosphere to 450 ppm in order to prevent the dangerous climate change that would be associated with any temperature rise in excess of 2°C.
Factors Influencing Patient Safety Culture in Saudi Arabia: A Systematic Review
Authors: Al abbas Anood M.
Published: February 2021

ABSTRACT

Context: Patient safety, which is concerned with preventing harm to patients, has already become a vital element of the global healthcare system. The evidence relating to the status of the patient safety culture in Arab countries suggests that it is at a sub-optimal level because of a punitive approach to errors and deficits in communications openness.

Aim: The given review aimed to identify the relevant evidence related to factors influencing patient safety culture in Saudi Arabia hospitals from patients and health care provider perspectives.

Methods: A systematic search was conducted in five electronic databases—MEDLINE, CINAHL, Embase, PsycINFO, and the Cochrane Database of Systematic Reviews. Related papers and reference lists of included studies were also hand-searched. One reviewer verified that the research met the inclusion criteria, assessed the research quality, and extracted their relevant features. The Yorkshire Contributory Factors Model (YCFF) was used to categorize factors influencing safety culture in the included documents.

Results: 14 documents were included, and most research was appraised as being satisfactory to high quality. Strength and weakness factors that are influencing patient safety culture have been identified. In Saudi Arabia, ineffective leadership, a blame culture, workload/inadequate staffing, and poor communication are key factors hindering a positive patient safety culture. Conversely, 'strength' factors influencing a positive patient safety culture included good teamwork within units, realistic manager expectations and supportive actions promoting patient safety, and organizational attitudes to learning/continuous improvement. There is an absence of patient perspectives about patient safety culture in Saudi Arabian studies.

Conclusion:  In the Saudi healthcare system, policymakers should pay attention to factors that may influence a positive patient safety culture, particularly the development of a blame-free culture, improving communications and leadership ability, learning from mistakes, and involving patient perspectives in safety initiatives. Further study must understand the barriers and facilitators in Saudi Arabia Hospitals to implement a positive patient safety culture.
Efecto relativo de la edad en el circuito profesional de Pádel (The relative age effect in the professional Padel circuit)
Authors: Muñoz Moreno Alejandro , Serrano Gonzalez Carla , Quintana-García Iñaki , Granado Peinado Miriam
Published: February 2021

El pádel ha pasado a ser a uno de los deportes más practicados en España. El propósito de este estudio fue evaluar el Efecto Relativo de la Edad (RAE) en los jugadores del circuito de World Pádel Tour (WPT) (n=395) teniendo en cuenta el mes de nacimiento, género, nacionalidad, edad y ranking. La distribución trimestral observada no fue significativamente diferente (χ2; p>.05) a la esperada para el grupo general o para cualquiera de las subcategorías analizadas. Por tanto, no parece confirmarse un efecto de la edad relativa en los jugadores profesionales de pádel analizados, considerando el ranking, género y nacionalidad, a diferencia de lo que ocurre en otros deportes de raqueta. En este sentido, esta investigación constata que la fecha de nacimiento no es un factor relevante en el circuito de WPT y confirma que llegar a la élite del pádel no se basa exclusivamente en factores físicos y antropométricos. 
Abstract: Padel has become one of the most practiced sports in Spain. The purpose of this study was to evaluate the Relative Effect of Age (RAE) in the World Padel Tour (WPT) circuit players (n = 395) taking into account the month of birth, gender, nationality, age and ranking. The quarterly distribution observed was not significantly different (χ2; p> .05) than expected for the general group or for any of the subcategories analyzed. Therefore, it does not seem to confirm an effect of relative age on professional padel players analyzed, considering the ranking, gender and nationality, unlike what happens in other racket sports. Thus, this investigation confirms that the date of birth is not a relevant factor in the WPT circuit and confirms that reaching the elite of the paddle that is not based exclusively on physical and anthropometric factors.
Motivación contextual desde la autodeterminación en las clases de Educación Física (Contextual motivation from self-determination in physical education classes)
Authors: Cádiz Chacón Pablo , Barrio Mateu Luis Antonio , León Valladares Dayneri , Hernández Sánchez Álvaro , Milla Palma María , Sotomayor Fernández Milenco
Published: February 2021

El objetivo propuesto en el presente estudio fue determinar el tipo de motivación, desde la perspectiva de la autodeterminación, en estudiantes de enseñanza media, hacia la clase de Educación Física del Liceo Antonio Varas de la Barra en Arica, Chile, y su relación entre nivel de estudios y sexo. Participaron 717 estudiantes de 1ro a 4to medio. El instrumento utilizado fue la Escala del Locus Percibido de Causalidad en Educación Física (adaptación española). Entre los resultados se hallaron resultados medios-altos (5.09 y 5.22) para las dimensiones de Motivación Intrínseca y Regulación Identificada, respectivamente; mientras que las dimensiones Regulación Introyectada y Regulación Externa presentaron valores medios, 4.49 para la Regulación Introyectada y 4.72 para la Regulación Externa. Por su parte, la no motivación alcanzó un valor medio-bajo (3.70). Genéricamente, los varones aparentaron valores más alto que las damas, en todas las dimensiones, excepto en no motivación, sin embargo, estas diferencias no resultaron ser significativas estadísticamente. Se arribó a la conclusión de que la Motivación Intrínseca, la Regulación Identificada caracterizan a la población estudiada, la no motivación mostró resultados bajos, por lo que los alumnos de enseñanza media, sobre todo, los hombres de niveles superiores, se hallan motivados por la clase de Educación Física.
Abstract. The objective proposed in the present study was to determine the type of motivation, from the perspective of self-determination, in high school students, towards the Physical Education class of the Antonio Varas de la Barra High School in Arica, Chile, and its relationship between level of studies and sex. 717 students from 1st to 4th grade participated. The instrument used was the Scale of the Perceived Locus of Causality in Physical Education (Spanish adaptation). Among the results, medium-high results (5.09 and 5.22) were found for the dimensions of Intrinsic Motivation and Identified Regulation, respectively; while the Introjected Regulation and External Regulation dimensions presented average values, 4.49 for Introjected Regulation and 4.72 for External Regulation. For its part, non-motivation reached a medium-low value (3.70). Generically, men appeared higher values ​​than women, in all dimensions, except non-motivation, however, these differences were not statistically significant. It was concluded that Intrinsic Motivation, Identified Regulation characterize the studied population, non-motivation showed low results, so that high school students, especially men of higher levels, are motivated by the P.E. Class.
Qualidade de vida de professores do ensino superior: uma revisão sistemática (Quality of life of higher education teachers: a systematic review)
Authors: Araldi Franciane Maria , Poulsen Fernanda Feijó , De Azevedo Guimarães Adriana Coutinho , Oliveira Farias Gelcemar , Folle Alexandra
Published: February 2021

Essa revisão sistemática teve como objetivo mapear os artigos publicados sobre qualidade de vida de professores atuantes em cursos de Ensino Superior. Buscou-se artigos originais nas seguintes bases de dados eletrônicas: Lilacs; Web of Science; Proquest; Scielo; e Science Direct, sem delimitação de abrangência temporal. Após a seleção dos estudos foi realizada a análise por meio de categorias e de frequência absoluta (QSR NVIVO). As informações obtidas revelaram que a investigação da qualidade de vida de professores do Ensino Superior é incipiente na literatura, apesar de estar em crescimento na última década (2009 a 2019) e os professores universitários das regiões Sul e Sudeste do Brasil têm sido os mais estudados. O Whoqol têm sido o instrumento preconizado para a investigação da temática e da população em destaque nessa revisão. A análise da percepção geral evidenciou que os docentes avaliam positivamente sua qualidade de vida e os domínios psicológico, relações sociais e meio ambiente, enquanto o domínio físico tem sido avaliado em algumas pesquisas de forma regular.
 
Abstract. This systematic review aimed to map the published articles on the quality of life of teachers working in higher education courses. Original articles were searched from the following electronic databases: Lilacs; Science web; Proquest; Scielo; and Science Direct, without delimitation of temporal scope. After the selection of the studies, the analysis was performed through categories and absolute frequency (QSR NVIVO). The information displayed reveals that research on the quality of life of higher education teachers is incipient in the literature, despite being growing in the last decade (2009 to 2019) and university teachers from the South and Southeast regions of Brazil were the most studied. Whoqol has been the recommended tool for research of the theme and the population highlighted in this review. A general perception analysis shows that the documents positively evaluate their quality of life and the psychological domains, social relations and environment, while the physical domain was evaluated in some regular research.
Estrategias didácticas de educación física para mejorar el rendimiento académico de estudiantes universitarios con base en gimnasia cerebral de Paul Dennison (Didactic physical education strategies to improve the academic performance of college students
Authors: Ramírez Ramírez Wildoro , Vasquez Ruiz Ledmy , Palacios Paredes Wendy Lilly
Published: February 2021

En el presente trabajo se estudia la influencia de estrategias didácticas de educación física basadas en ejercicios de gimnasia cerebral de Paul Dennison en el rendimiento académico de estudiantes universitarios del primer ciclo de la Facultad de Ciencias Económicas de la Universidad Nacional de San Martin en Perú. La muestra estuvo conformada por 120 estudiantes, y fue escogida de forma probabilística en muestreo estratificado y se formaron dos grupos, uno Control con 68 estudiantes y uno Experimental con 52 estudiantes. Originalmente se estudió la homogeneidad de las calificaciones de los estudiantes en 4to y 5to años de secundaria en Matemática y Comunicación mediante análisis de normalidad y prueba U de Mann-Whitney y luego al grupo Experimental se intervino mediante ejercicios de educación física basados en gimnasia cerebral durante todo el ciclo académico, dejando al grupo Control sin intervenir. Al final del ciclo se recolectaron las calificaciones de Matemática y Comunicación de ambos grupos y se analizaron estadísticamente mediante prueba U de Mann-Whitney para establecer las diferencias entre los grupos y la influencia de la intervención, con significancia α = 0,05. Se demostró que se produjo diferencia estadísticamente significativa entre las calificaciones de los dos grupos de estudio (Valor-p < 0,05) con nivel de confianza de 95%, con mayores notas en el grupo experimental, atribuidas a la intervención realizada. 
Abstract: This paper studies the influence of physical education teaching strategies based on Paul Dennison's brain gym exercises on the academic performance of university students in the first cycle of the Faculty of Economics at the National University of San Martin in Peru. The sample was made up of 120 students, and was chosen probabilistically in a stratified sample and two groups were formed, a Control group with 68 students and an Experimental group with 52 students. Originally, the homogeneity of the grades of students in 4th and 5th years of secondary school in Mathematics and Communication was studied by means of normality analysis and Mann-Whitney U test. Then, the Experimental group was intervened by means of physical education exercises based on brain gym during the whole academic cycle, leaving the Control group without intervention. At the end of the cycle the Math and Communication scores of both groups were collected and statistically analyzed by Mann-Whitney Utest to establish the differences between the groups and the influence of the intervention, with significance α = 0.05. It was demonstrated that there was a statistically significant difference between the scores of the two study groups (p-value < 0.05) with 95% confidence level, with higher scores in the experimental group, attributed to the intervention performed.
Actitudes hacia la Expresión Corporal en el ámbito de la asignatura de Educación Física: Un estudio con alumnado de Educación Secundaria Obligatoria (Attitudes towards Body Expression in the field of Physical Education subject: A study with Compulsory Se
Authors: Arias García José Roberto , Fernández Díez Beatriz , Valdés González Rodrigo
Published: February 2021

El objetivo de este estudio fue llevar a cabo una investigación en la que se analizaban las Actitudes hacia la Expresión Corporal de los alumnos de Educación Secundaria en el marco de la asignatura de Educación Física. Para realizar dicho estudio se contó con una muestra de 692 estudiantes de Educación Secundaria Obligatoria, con edades comprendidas entre los 12 y 18 años. Todos ellos pertenecientes a ocho institutos diferentes de la ciudad de Valladolid. El instrumento utilizado fue un cuestionario, fruto de un trabajo previo (Arias, Fernández & San Emeterio, 2020), compuesto por 32 ítems que atendían a diferentes factores (Valoración de la EC, Preferencia, Agrado o gusto y Actitud del profesor). Tras un análisis inferencial podemos destacar, como resultados importantes, que la actitud de los alumnos hacia la Expresión Corporal se ve influenciada por la actitud que perciban en el profesor hacia esta materia. También se analizó la influencia que pueden tener las variables sexo, edad, curso y tipo de centro con respecto al constructo Actitud del alumnado hacia la Expresión Corporal. Resultado del análisis destacamos la correlación existente entre las variables sexo y tipo de centro y dicho constructo.  
Abstract. The aim of this study was to carry out an investigation that analysed Attitudes towards Body Expression. To construct this study, there was a sample of 692 students belonging to the E.S.O, aged between 12 and 18 years. All of them belong to eight different high schools in the city of Valladolid. The instrument used was a questionnaire, the result of a previous work (Arias, Fernández & San Emeterio, 2020), made up by 32 items that addressed different factors (Assessment of the CE, Preference, Liking and Attitude of the teacher). After an inferential analysis we can highlight, as main results, the students’ attitude towards Corporal Expression, it will be influenced by the attitude they perceive in their teacher. The influence that the variables sex, age, grade and type of center may have with respect to the construct Attitude of students towards Body Expression was also analyzed. Result of the analysis, we highlight the correlation between the variables sex and type of center and said construct.
Influencia del perfil de los jóvenes en sus valores del cuerpo (Influence of the profile of young people on their body values)
Authors: Velasco-Santos Lorena , Pastor Pradillo José Luis , Blanco-Alcántara David , Jiménez Eguizábal Alfredo
Published: February 2021

El presente artículo analiza los valores del cuerpo de 536 estudiantes de 1º Bachillerato en Castilla y León en el curso 2017/18 en función de sus variables de perfil sexo, modalidad de bachillerato, naturaleza, titularidad y provincia de pertenencia del centro de estudios. El objetivo es describir tendencias generales asociadas a dichas variables de perfil. El instrumento de medida es el test elaborado por Casares y Collados (1998) que clasifica en 10 los valores del cuerpo en base a 250 ítems agrupados en bloques de 25. El tratamiento de datos se lleva a cabo mediante un análisis de valores medios. Los resultados obtenidos son mostrados en forma de tablas de puntuaciones, gráficos y representaciones jerárquicas. Se calculan estadísticos descriptivos y estadística inferencial. Se observan diferencias estadísticamente significativas asociadas a la variable de perfil sexo y, secundariamente, provincia de pertenencia del centro de estudios. Asimismo, destaca el valor placer como el más agradable en todas las clasificaciones y el valor religioso el menos, exceptuando lo ocurrido en Soria donde se torna incluso positivo. Todo ello describe la realidad en que los estudiantes de 1º bachillerato conciben su cuerpo y le conceden su valor, lo que abre nuevos flancos críticos en la educación a través de los valores del cuerpo. 
Abstract. This article analyzes the body values of 536 First Year Bachillerato students in the Castilla y León region of Spain during the academic year 2017/18 according to their special characteristics such as gender, Bachillerato option, personality, qualifications and province administering the educational establishment they attend. The aim is to describe general trends associated with these profile variables. The instrument of measurement is the test devised by Casares and Collados (1998), which divides body values into 10 categories. It is based on 250 items classified into 10 groups of 25 defining the body values. Data processing is carried out through an analysis of average values. The results obtained are shown in the form of score tables, graphs and hierarchical representations. Descriptive statistics and inferential statistics are calculated. Significant differences associated to the variable of gender profile and, secondarily, province of belonging to the study center are highlighted. Likewise, the pleasure value stands out as the most pleasant in all classifications and the religious value the least, except for what happened in Soria where it becomes even positive. The procedure of preferred values ratifies the pleasure value as the most pleasant, however the religious value is rarely the least preferred. All this describes the reality in which the students of the 1st baccalaureate conceive their body and give it their value, which opens new critical flanks in education through the values ​​of the body.
Implementación de un programa de ciclismo urbano en estudiantes universitarios chilenos (Implementation of an urban bicycling programme in Chilean university students)
Authors: Adaros Boye Milena , Duclos-Bastías Daniel , Espinoza Oteiza Luis , Giakoni Ramírez Frano
Published: February 2021

El uso de la bicicleta como medio de transporte activo es una forma de incrementar el tiempo de actividad física en las personas, por lo que se debe promover en los contextos educativos y laborales. El objetivo de la presente investigación fue evaluar la efectividad del programa de ciclismo urbano en una muestra 63 sujetos universitarios (n=63), 31 mujeres y 32 hombres, a partir de instrumentos estandarizados con medidas pre y post a una intervención de carácter teórico-práctica. Los instrumentos consideraron aspectos conceptuales, actitudinales, autopercepción de habilidades, y autoevaluación de la condición física. Los resultados evidenciaron diferencias estadísticamente significativas (p ≤0,05) en todas las mediciones realizadas. En el test 1 (normas de circulación y comportamiento ciclista; en el 2 (BPNES), 0,0057; y en el 3 (IFIS), 0,0113 lo que se traduce en que el programa de intervención urbano es un método efectivo para aumentar los conocimientos, las habilidades y mejorar la condición física en los estudiantes universitarios que participaron en la experiencia.
Abstract. The use of the bicycle as an active means of transport is a way of increasing people's time for physical activity and should therefore be promoted in educational and work contexts. The aim of this research was to evaluate the effectiveness of the urban cycling programme in a sample of 63 university subjects (n=63), 31 women and 32 men, using standardised instruments with pre- and post-intervention measures of a theoretical-practical nature. The instruments considered conceptual and attitudinal aspects, self-perception of skills, and self-assessment of physical condition. The results showed statistically significant differences (p ≤0,05) in all the measurements made. In test 1 (traffic rules and cycling behaviour; in test 2 (BPNES), 0.0057; and in test 3 (IFIS), 0.0113 which means that the urban intervention programme is an effective method to increase knowledge, skills and improve physical condition in the university students who participated in the experience.
Factores socio-demográficos, económicos y deportivos relacionados con la participación del equipo olímpico español en los JJ.OO. de Pekín 2008 a Rio 2016 (Socio-demographic, economic and sports factors related to the participation of the Spanish Olympic
Authors: Leiva-Arcas Alejandro , Vaquero-Cristóbal Raquel , Sánchez-Pato Antonio , Abenza-Cano Lucía , Martínez-Patiño María José
Published: February 2021

El objetivo del presente estudio fue analizar los factores socio-demográficos, económicos y deportivos relacionados con los resultados de participación del equipo olímpico español en los JJ.OO. de Pekín 2008, Londres 2012 y Rio de Janeiro 2016, analizando si el sexo del deportista provoca variaciones en el modelo. Se obtuvieron datos de 875 deportistas olímpicos pertenecientes al equipo español entre los años 2005 y 2016, así como de diferentes parámetros socio-demográficos, económicos, y deportivos. Se realizó un análisis de componentes principales que mostró que la población, el presupuesto deportivo, las licencias deportivas, los deportistas de alto nivel (DAN), los deportistas becados, la brecha de género y el PIB explicaban un 79,81% de la varianza total. Al realizar el modelo en función del sexo se encontró un modelo similar al general en mujeres y hombres. En conclusión, la participación de hombres y mujeres en el olimpismo español se debe a una gran amalgama de variables, no existiendo grandes diferencias en la influencia de las mismas en función sexo. 
Abstract. The aim of this study was to analyze the socio-demographic, economic and sports factors related to the results of the Spanish Olympic team's participation in the Olympic Games of Beijing 2008, London 2012 and Rio de Janeiro 2016, analyzing whether the sex of the athlete causes variations in the model. Data was obtained from 875 Olympic athletes belonging to the Spanish team between 2005 and 2016, as well as from different socio-demographic, economic and sports parameters. A main component analysis was carried out which showed that the population, sports budget, sports licenses, top level athletes (TLA), scholarship awarded athletes, gender gap and GDP explained 79.81% of the total variance. When the gender model was carried out, a similar pattern to the general one was found in women and men. In conclusion, the participation of men and women in the Spanish Olympics is due to a great amalgam of variables, and there are no great differences in the influence of these variables according to gender.