Search results for "Peak"

Viral replication modes in single-peak fitness landscapes: A dynamical systems analysis

2017

Positive-sense, single-stranded RNA viruses are important pathogens infecting almost all types of organisms. Experimental evidence from distributions of mutations and from viral RNA amplification suggest that these pathogens may follow different RNA replication modes, ranging from the stamping machine replication (SMR) to the geometric replication (GR) mode. Although previous theoretical work has focused on the evolutionary dynamics of RNA viruses amplifying their genomes with different strategies, little is known in terms of the bifurcations and transitions involving the so-called error threshold (mutation-induced dominance of mutants) and lethal mutagenesis (extinction of all sequences du…

Assessment of learning strategies with the ACRA and the Brief-ACRA scales: Competitive models, measurement invariance, and prediction of academic ach…

2021

Abstract Learning strategies have been widely studied, and they have been related to academic achievement in several studies. Among the measurement instruments developed, the 44-item version of the Learning Strategies Scale (ACRA) is, by far, one of the most widely used questionnaires in the Spanish speaking context. This instrument has been recently shortened to a 17-item version. Neither the 44-item nor the 17-item version have been tested in the Dominican Republic. The aim of this study is to study the psychometric properties of the 44-item and 17-item versions of the ACRA. Participants were 1712 Dominican secondary school students. Both structures of the ACRA were tested via CFA; alpha …

Examining the relationship between public speaking anxiety, distress tolerance and psychological flexibility

2020

Public speaking is an important skill for university students to learn and practice as they progress through education and into their careers. However, individuals often avoid facing public speaking, as they lack the skills to cope with the anxiety that arises when speaking in front of others. The current study aimed to investigate the relationship between public speaking anxiety, distress tolerance, and psychological flexibility. A sample of 95 college students completed psychological flexibility measures and self-ratings of public speaking anxiety before and after a public speaking challenge. A behavioral index of public speaking distress tolerance (i.e., speech duration) was also recorde…

Driver stress in five Spanish-speaking countries: Construct validity of the LatinSET

2020

Abstract Introduction Driver stress is a phenomenon many have studied in probably all five continents. It has been the focus of curiosity for all sorts of disciplines, and science has been unable to curb it, much less park it. Objectives This study aims to generate a unique scale that can be used in Spanish speaking countries regardless of culture or geography. Method and Materials A sample of 1954 drivers from Mexico, Guatemala, Costa Rica, Chile and Spain was comprised. Through this study, the original 21 items of the ISET (Stressful Situations in Transit Inventory, in Spanish) were used to carry out both an Exploratory Factorial Analysis as well as a Confirmatory Factorial Analysis. Resu…

Victim-Naming in the Murder Mystery Series Twin Peaks: A Corpus-Stylistic Study

2020

Corpus linguistics is advancing rapidly in the study of a wide variety of genres, but is still at its infancy in the study of TV series, a genre daily consumed by millions of viewers. Murder mystery series are one of the most popular and proliferous, but no studies, to date, have used corpus-stylistics methodologies in the analysis of the pivotal character of the victim in the whole narrative. This paper applied this methodology hoping to shed some light on the quantitative and qualitative relationship between the participation roles of the characters, and the frequency and distribution of victim-naming choices in the dialogue of the two first seasons of the acclaimed TV series Twin Peaks. …

¿Atenuación del compromiso del hablante?: el caso de los evidenciales "por lo visto" y "se ve que"

2018

espanolBuena parte de la bibliografia sobre marcadores evidenciales en espanol senala la atenuacion del compromiso (o responsabilidad) de lo dicho como uno de sus rasgos definitorios. Sin embargo, tanto la nocion de atenuacion como la de compromiso del hablante se han empleado con distintas acepciones, segun los trabajos. En primer lugar, se revisan estas acepciones y se propone, siguiendo a Cornillie/Delbecque, distinguir las nociones compromiso del hablante de implicacion del hablante, las cuales funcionan de manera inversa en algunos usos evidenciales: (i) de las evidencias reportativas a las inferenciales conjeturales hay una escala de menos a mas implicacion del hablante; (ii) en las e…

Master runners dominate 24-h ultramarathons worldwide—a retrospective data analysis from 1998 to 2011

2013

Abstract Background The aims of the present study were to examine (a) participation and performance trends and (b) the age of peak running performance in master athletes competing in 24-h ultra-marathons held worldwide between 1998 and 2011. Methods Changes in both running speed and the age of peak running speed in 24-h master ultra-marathoners (39,664 finishers, including 8,013 women and 31,651 men) were analyzed. Results The number of 24-h ultra-marathoners increased for both women and men across years (P < 0.01). The age of the annual fastest woman decreased from 48 years in 1998 to 35 years in 2011. The age of peaking running speed remained unchanged across time at 42.5 ± 5.2 years f…

Analysis of swimming performance in FINA World Cup long-distance open water races

2014

International audience; BACKGROUND: Age and peak performance in ultra-endurance athletes have been mainly investigated in long-distance runners and triathletes, but not for long-distance swimmers. The present study investigated the age and swimming performance of elite ultra-distance swimmers competing in the 5-, 10- and 25-km Fédération Internationale de Natation (FINA) World Cup swimming events. METHODS: The associations of age and swimming speed in elite male and female swimmers competing in World Cup events of 5-, 10- and 25-km events from 2000 to 2012 were analysed using single and multi-level regression analyses. RESULTS: During the studied period, the swimming speed of the annual top…

Kanoninen kumous : Pentti Saarikosken 1960-luvun lyriikan poliittinen runousoppi

2015

El consentimiento en el proceso penal : ¿un oxímoron?

2021

We are involved in a moment of deep changes in Criminal Procedure due, among other reasons, to the permanent expansion of Criminal Law. Legislative modifications have taken place one another over the world and they have led to a functional reformulation of the role played by the protagonists of Criminal Procedure. These changes have not finished yet and the future is still to come, but new elements are already emerging: the consent of the actors of the process and of the victims and the reinforcement of the principle of opportunity are undoubtedly some of them. Probation, diversion, compliance, criminal mediation are institutions that stand on the principle of consent for procedural purpose…