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Kompleksy metali przejściowych z zasadami Lewisa jako prekursory katalizatorów polimeryzacji olefin. Cz. I. Postęp w komputerowym modelowaniu procesu…

2001

A review with 35 references covering molecular modeling in coordination polymerization over homogeneous and heterogeneous Ziegler-Natta catalysts. The study includes supports, cocatalysts, Lewis bases and solvents. Recent progress in elucidating the mechanisrn of elementary polymerization steps is presented against the background of rapidly deveIoping computational methods and available computational power. Theoretical studies on polymerization mcchanisms and structure of active centers are described (egns. 1-4). Authors own calculations are used to compare [MtC14(THF)2] complex-based (Mt = Ti, Hf or Zr) heterogeneous catalysts. The geometrical characteristics of precursors is presented (Ta…

Rôle de la mitochondrie dans le glucose sensing cérébral

2014

Compartint visions sobre l’educació: Un projecte intergeneracional amb sèniors de la Universitat dels Majors y estudiants de Magisteri

2021

Memoria y patrimonio vivo es un proyecto de innovación educativa centrado en el diálogo intergeneracional de las experiencias de vida y de vida educativa entre estudiantes séniors (Universitat dels Majors) y juniors (estudiantes de Magisterio Infantil), que se ha desarrollado en la Universitat de València (Campus d’Ontinyent) con sesiones quincenales a lo largo de seis meses de trabajo. Durante el proyecto se estableció un diálogo intergeneracional sobre la educación a lo largo de la vida que permitió obtener diferentes visiones y superar estereotipos mutuos entre personas de distintas generaciones al aprender unas de otras a través de la interacción directa. El hecho de utilizar metodologí…

Sub-milliarcsecond imaging of a bright flare and ejection event in the extragalactic jet 3C 111

2020

Context. Flares in radio-loud active galactic nuclei are thought to be associated with the injection of fresh plasma into the compact jet base. Such flares are usually strongest and appear earlier at shorter radio wavelengths. Hence, very long baseline interferometry (VLBI) at millimeter(mm)-wavelengths is the best-suited technique for studying the earliest structural changes of compact jets associated with emission flares. Aims. We study the morphological changes of the parsec-scale jet in the nearby (z = 0.049) γ-ray bright radio galaxy 3C 111 following a flare that developed into a major radio outburst in 2007. Methods. We analyse three successive observations of 3C 111 at 86 GHz with th…

ChemInform Abstract: Base-Catalyzed Isomerization of 2-Isoxazolines Enables a Two-Step Enantioselective Synthesis of β-Hydroxynitriles from Enals.

2011

Treatment of chiral isoxazoles with catalytic amounts of DBU results in efficient formation of optically active β-hydroxynitriles.

A Preliminary Analysis of the Importance of Distance, Angle, and Insight When Soccer Referees Make Penalty Decisions

2021

Soccer referees move freely on the pitch to place themselves in the best location for making decisions. While Football Association UK (FA) highlights that a referee should never be more than 20 m away from the playing situation, previous studies have been inconsistent in indicating appropriate distance to a situation for increasing the likelihood of a correct decision. Further, appropriate angle and insight are also likely to influence the correctness of referees' decisions. The aim of this study was to provide an initial investigation of elite referees' positioning in the field (distance, angle, and insight) when making correct and erroneous decisions in potential penalty situations. An ex…

The Influence of Fatigue on Throwing and YBT-UQ Performance in Male Adolescent Handball Players

2020

Purpose: The goal of the present study was to assess the effects of fatigue on throwing and Upper Quarter Y Balance Test (YBT-UQ) performance in male adolescent handball players. We hypothesized that throwing and YBT-UQ performance will be decreased in response to an upper-body fatigue-protocol.Method: All male participants (N = 24, age: 14.8 ± 0.7 yrs) were handball players of a regional youth selection team. A radar gun was used for the assessment of throwing velocity. The YBT-UQ was executed assessing medial, inferolateral and superolateral reach directions normalized to the upper limb length together with a composite score. Immediately following a fatigue protocol of different sets of p…

A Group-Based 8-Week Functional Interval-Type Outdoor Training Program Improves Physical Performance in Recreationally Active Adults

2022

Even though physical activity is an important aspect of health, lack of time or motivation impede people from working out regularly. One type of training program that is both efficient and motivating is functional interval-type outdoor training. To evaluate this, our study had 81 participants complete a battery of physical performance tests (incremental treadmill test, core stability test and functional fitness test) before and after an 8-week outdoor interval-type training intervention. Training procedures included multimodal and high-intensity exercises performed in consistent, small groups. Results showed that the interval training program produced significant increases in the interventi…

Children’s outdoor movement education: position statement

2021

This position statement follows to the thematic round table organized by S.I.E.M.eS. (Italian Society of Movement and Sport Education) as final event of the international congress on "Outdoor movement education" held in Bozen, Italy, december 3-5, 2020. Today’s lifestyle with interesting electronic devices attracts young children to spend time inside instead going out to play in a physically active manner. At the same time, recent research evidence has shown that outdoor active play (outdoor play) offers multiple advantages to children’s development and health. In December 2020, the University of Bozen organized an international congress on the relevance of outdoor movement education and ou…

Structural Discrimination in Physical Education. The “Encounter” Between the (White) Norwegian Teaching Content in Physical Education Lessons and Fem…

2021

Background: Throughout society, including in the field of sports and physical education (PE), there are extensive debates on racism and structural racism. Researchers have found that students of color experience racial stereotyping and discrimination in PE. Studies also show that PE teaching practices reflect a masculine culture, emphasizing traditional (Western) competitive male sports and physical fitness practices, while marginalizing female students of color. Simultaneously these students also negotiate, resist, and operate as visible agents within these practices. While previous research has tended toward focusing on the experiences (of discrimination) from the perspective of students …