Stability and individual variability of social attachment in imprinting

Filial imprinting has become a model for understanding memory, learning and social behaviour in neonate animals. This mechanism allows the youngs of precocial bird species to learn the characteristics of conspicuous visual stimuli and display affiliative response to them. Although longer exposures to an object produce stronger preferences for it afterwards, this relation is not linear. Sometimes, chicks even prefer to approach novel rather than familiar objects. To date, little is known about how filial preferences develop across time. This study aimed to investigate filial preferences for familiar and novel imprinting objects over time. After hatching, chicks were individually placed in an arena where stimuli were displayed on two opposite screens. Using an automated setup, the duration of exposure and the type of stimuli were manipulated while the time spent at the imprinting stimulus was monitored across 6 days. We showed that prolonged exposure (3 days vs 1 day) to a stimulus produced robust filial imprinting preferences. Interestingly, with a shorter exposure (1 day), animals re-evaluated their filial preferences in functions of their spontaneous preferences and past experiences. Our study suggests that predispositions influence learning when the imprinting memories are not fully consolidated, driving animal preferences toward more predisposed stimuli

Structural stigma and bisexual + people: Effects of the rejection of the Zan Bill in Italy on minority stress and mental health

Bisexual + people experience severe forms of structural stigma that are associated to negative mental health outcomes. In order to eradicate hate crimes against LGBTQIAPK + people, on the 4th of November 2020, the Italian deputy Alessandro Zan proposed a Bill entitled “Measures to prevent and combat discrimination and violence on grounds of sex, gender, sexual orientation, gender identity and disability” (also known as “Zan Bill”). On October 27, 2021, the Italian Senate silenced the Bill. This study aimed to explore whether a worsening in mental health before and after the Zan Bill’s rejection occurred among bisexual + people. Data from 299 Italian bisexual + people after the Zan Bill’s rejection were compared with data on the same measures from 381 Italian bisexual + people before the Zan Bill’s rejection. We observed a worsening in the levels of discrimination, anticipated and internalized binegativity, resilience, anxiety, and depression after the rejection of the Zan Bill. Outness remained unchanged in the two groups. Results suggested that the rejection of the Zan Bill has had a strong effect on the well-being of Italian bisexual + people

Towards Emotion Recognition: A Persistent Entropy Application

Emotion recognition and classification is a very active area of research. In this paper, we present a first approach to emotion classification using persistent entropy and support vector machines. A topology-based model is applied to obtain a single real number from each raw signal. These data are used as input of a support vector machine to classify signals into 8 different emotions (calm, happy, sad, angry, fearful, disgust and surprised)

The clinical features of the piriformis syndrome: a systematic review

Piriformis syndrome, sciatica caused by compression of the sciatic nerve by the piriformis muscle, has been described for over 70 years; yet, it remains controversial. The literature consists mainly of case series and narrative reviews. The objectives of the study were: first, to make the best use of existing evidence to estimate the frequencies of clinical features in patients reported to have PS; second, to identify future research questions. A systematic review was conducted of any study type that reported extractable data relevant to diagnosis. The search included all studies up to 1 March 2008 in four databases: AMED, CINAHL, Embase and Medline. Screening, data extraction and analysis were all performed independently by two reviewers. A total of 55 studies were included: 51 individual and 3 aggregated data studies, and 1 combined study. The most common features found were: buttock pain, external tenderness over the greater sciatic notch, aggravation of the pain through sitting and augmentation of the pain with manoeuvres that increase piriformis muscle tension. Future research could start with comparing the frequencies of these features in sciatica patients with and without disc herniation or spinal stenosis

Motion analysis in sport training: the link between technology and pedagogy

Sport is an increasingly popular phenomenon among people probably due to the parallel evolution of the methods of development of physiological, technical and strategic capacities. People who play sports have learned to pay more and more attention to the loads they put on their bodies. This is because it is know that excessive loads during workouts can increase the risk of injuries. As the benefits of sport activity manifest themselves in many fields like in disability, in the presence of clinical pathologies, for recovery prison and especially in schools, it cannot be considered as simple gymnastics, since it involves physical, psychological, and cultural aspects and for these reasons we now increasingly speak of sport pedagogy. Many definitions have been proposed for the word training but all of them are almost always incomplete. This because training is to be understood as a complex pedagogical process in which various factors come into play such as, for example, motor, physical, technical, tactical but above all psychological, neurobiological and social factors. The aim of training is to describe, quantify and evaluate human movement. The analysis of human movement provide information about different aspects of a specific motor task (such as walking, jumping and running), through measuring instruments like cameras or sensors. These allow to obtain quantitative and qualitative descriptions of the observed sport gesture. The purpose of this review is to analyse how the motion analysis, through its different technologies, can help in the description and characterization of sport and training intended as pedagogical processes

Towards Energy-Efficient Functional Configuration in WSNs

The growing maturity in WSNs technology is increasingly demanding for further effort to jointly consider functional effectiveness and non-functional constraints on the available energy and memory resources. A non-optimal configuration of the applicative layer, in fact, can neutralize the effort spent in enhancing the efficiency of the lower layers. This paper proposes an ILP model and a very fast and accurate heuristic for configuring the applicative domain of a WSN in order to maximize the lifetime of the network under both functional and non-functional constraints

Match Activities in Basketball Games: Comparison Between Different Competitive Levels.

Ferioli, D, Schelling, X, Bosio, A, La Torre, A, Rucco, D, and Rampinini, E. Match activities in basketball games: comparison between different competitive levels. J Strength Cond Res 34(1): 172-182, 2020-This study examined the (a) differences in the activity demands of official basketball games between different competitive levels (from elite to amateur levels) among a large cohort of adult male players and (b) match-to-match variations of basketball physical demands. Video-based time-motion analysis (TMA) was performed to assess the players' physical activity among 136 players. Match-to-match variations were determined analyzing 2 consecutive matches of the same level on 35 players. The frequency of occurrence (n per minutes) and the duration in percentage of playing time were calculated for high-intensity activity (HIA), moderate-intensity activity (MIA), low-intensity activity (LIA), and recovery (REC). Division I performed an almost certain greater number of HIA, MIA, and total actions per minutes of playing time compared with Division II that performed similarly to Division III. Division VI performed a likely-to-very likely lower number of LIA, MIA, and total actions per minute compared with Division III. Division I spent almost certain greater playing time competing in HIA and MIA compared with lower divisions. Time spent at REC was very likely greater in Division VI compared with all other Divisions. The frequency of occurrence was less reliable than percentage duration of game activities. Matches of different competitive levels are characterized by different physical activities. The ability to sustain greater intermittent workloads and HIA, and the ability to quickly recover from high-intensity phases during competitions should be considered as key components of basketball. The match-to-match variations values observed in this study might be useful to correctly interpret individual TMA data

Combined Effect of Number of Players and Dribbling on Game-Based-Drill Demands in Basketball.

PURPOSE:To examine the physiological, physical, and technical demands of game-based drills (GBDs) with regular dribble (RD) or no dribble (ND) involving a different number of players (3 vs 3, 4 vs 4, and 5 vs 5). METHODS:Ten regional-level male basketball players performed 6 full-court GBD formats (each consisting of 3 bouts of 4 min and 2 min rest) on multiple occasions. The physiological and perceptual responses were measured through heart rate and rating of perceived exertion. Video-based time-motion analysis was performed to assess the GBD physical demands. The frequencies of occurrence and the duration were calculated for high-intensity, moderate-intensity, low-intensity, and recovery activities. Technical demands were assessed with a notional-analysis technique. A 2-way repeated-measures analysis of variance was used to assess statistical differences between GBD formats. RESULTS:A greater perceptual response (rating of perceived exertion) was recorded during 3 versus 3 than 5 versus 5 formats (P = .005). Significant interactions were observed for the number of recovery (P = .021), low-intensity activity (P = .007), and all movements (P = .001) completed. Greater time was spent performing low-intensity and high-intensity activities during RD than ND format. Greater technical demands were observed for several variables during 3 versus 3 than 4 versus 4 or 5 versus 5. A greater number of turnovers (P = .027), total (P ≤ .001), and correct passes (P ≤ .001) were recorded during ND than RD format. CONCLUSIONS:The number of players predominantly affected the perceptual response to GBD, while both the number of players and rule modification (RD vs ND) affected activities performed during GBD. Reducing the number of players increases the GBD technical elements, while ND format promotes a greater number of turnovers and passes