1,721,071 research outputs found
Sports Performance and Breathing Rate: What Is the Connection? A Narrative Review on Breathing Strategies
No full textBreathing is a natural and necessary process for humans. At the same time, the respiratory
pace and frequency can vary so much, depending on the status of the subject. Specifically, in sports,
breathing can have the effect of limiting performance from a physiological point of view, or, on the
other hand, breathing can regulate the psychological status of the athletes. Therefore, the aim of this
narrative review is to focus on the literature about the physiological and psychological aspects of
breathing pace in sports performance, merging these two aspects because they are usually considered
split, in order to create a new integrated vision of breathing and sports performance. Voluntary
breathing can be divided into a slow or fast pace (VSB and VFB, respectively), and their effects on
both the physiological and psychological parameters are very different. VSB can benefit athletes
in a variety of ways, not just physically but mentally as well. It can help improve cardiovascular
fitness, reduce stress and anxiety, and improve overall health and well-being, allowing athletes to
maintain focus and concentration during training and competition. VFB is normal during physical
training and competition, but away from training, if it is not voluntary, it can cause feelings of
anxiety, panic, dizziness, and lightheadedness and trigger a stress response in the body, affecting the
athlete’s quality of life. In summary, the role of breathing in the performance of athletes should be
considered, although no definitive data are available. The connection between breathing and sports
performance is still unclear, but athletes can obtain benefits in focus and concentration using slow
breathing strategies
Considerazioni medicolegali in un caso di ingestione accidentale di un disgiuntore palatale
No full text
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
The Vinča culture: an overview
Full text linkThis chapter reviews the archaeological evidence for the Vinča culture, the broader archaeological context for the majority of the metal production and metal artefacts extensively explored in Chapter 3, as well as for the sites of Belovode and Pločnik, whose investigation forms the core of The Rise of Metallurgy in Eurasia project. The chapter will provide a lengthy introduction to the current data and interpretations of the Vinča culture that are subsequently developed in far greater detail in the thematic overviews by many of the leading specialists in later chapters (Chapters 39–52). This monograph seeks to address, at least in part, the absence of a dedicated synthesis of the Vinča culture since Chapman’s (1981) monograph (see Chapman 2020b for a critical reflection).
The concept of archaeological cultures remains problematic in European prehistory in terms of definition and interpretation, yet extremely resilient in the absence of comparable empirically orientated alternatives (Roberts and Vander Linden 2011). Due to competing national traditions of scholarship, the culture history groupings and terminologies are strikingly complex in the later prehistoric Balkans (Gori and Ivanova 2017; Tsirtsoni 2016a). As such, the chapter explores the historiography and complex debates that surround the archaeological and temporal definitions of the Vinča culture. The importance of the Vinča culture lies not only in the evidence of early metallurgy but also in the evidence for the expansion of material culture production and circulation, the intensification of agriculture and increase in sedentism and settlement growth, which are all subsequently reviewed. The chapter concludes by examining past and present interpretations of the communities who lived and died within what we now term the Vinča culture
Belovode excavation results
Full text linkThe Neolithic–Chalcolithic site of Belovode covers approximately 40 ha (Figure 1). In the two fieldwork campaigns of 2012 and 2013, only 31.5 m2 was excavated due to the archaeometallurgical focus of the project. The trench was positioned on the eastern platform of the settlement, where previous excavations had uncovered significant metallurgical evidence in Trenches 3 (Šljivar and Jacanović 1997c, Radivojević et al. 2010a) and 17, which are located to the north and the south of Trench 18 respectively. A 5 x 5 m area was opened in the 2012 season and then, based on the preliminary spatial analysis of metallurgical finds, in 2013 the trench was slightly expanded with a 2 x 3 m extension on the eastern side
Variations on the Author
Full text link“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
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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