排序方式： 共有116条查询结果，搜索用时 31 毫秒
111.
Giuseppe Lippi Mario Plebani 《Biochemia medica : ?asopis Hrvatskoga dru?tva medicinskih biokemi?ara / HDMB》2021,31(2)
At the down of the third millennium, it is rather misleading to consider the “whole population” as a conceptual entity, whereby the population is actually composed by single individuals, who differ broadly in terms of age, sex, ethnic origin, occupation, health, wellbeing, lifestyle and risk factors. While reaffirming strongly that laboratory medicine shall aim to provide data that could be translated into actionable information on “BOTH” an individual and universal level, we confute and refuse the naive and too simplistic approach that the common beneficence shall always be prioritized over the individual good, since the common good is just the sum of many individual beneficences. 相似文献
112.
Despite official government srt (in various jurisdictions around the world) for providing students with opportunities to construct
their own knowledge within the context of formal schooling, school science systems continue to place greatest priority on
teaching and learning of products of science (e.g., laws and theories), while compromising students’ opportunities to develop realistic conceptions about science and expertise for doing science. Based on qualitative data analyzed using constant comparative methods (based on constructivist grounded theory),
we found this also to be the case – paradoxically – in a school belonging to the Canadian Coalition for Self-directed Learning
(CCSDL). Schools in this coalition espouse, among various goals, enabling students to construct their own knowledge, in ways
and directions suiting their individual needs, interests, perspectives, and abilities, in addition to gaining access to knowledge
developed by society. The science department within the coalition school in this study experienced considerable difficulty
realizing this goal, despite school-level administrative support for a concerted effort to reinvent itself along these lines.
Factors that appeared to influence the science department’s efforts included those in each of Schwab’s (1969) educational
"commonplaces;” that is, the curriculum, teachers, students, and the milieu surrounding teaching and learning. Further analysis suggests that results can be explained through reference to a Kuhnian
(1962/1996) paradigm conflict – in which the school’s administrative and curricular committee and other members of the CCSDL
were unsuccessful in convincing members of the science department (who, in turn, appeared to be supported by the provincial
government, parents, and students) to make provisions for more student-directed, openended science inquiry. Assuming that
student-led scientific inquiry continues to be an important curricular goal, efforts must continue to be made, therefore,
to convince members of the mainstream paradigm that it is a worthy goal. 相似文献
113.
Silvio Ripamonti Laura Galuppo Andreina Bruno Silvia Ivaldi Giuseppe Scaratti 《Teaching in Higher Education》2018,23(6):751-768
Critical reflexivity has been acknowledged as fundamental in higher education. For facing complex situations in turbulent environments, students nowadays need not only to be taught technical knowledge, but also to be helped develop “relevant” learning for their future professional practice. In recent years, scholars have concentrated on what makes the internship experience a successful opportunity for the parties involved, and have also discussed the crucial role of a mentor/tutor in sustaining relevant and effective learning. However, the specific conditions that make tutorship successful in promoting critical reflexivity in such a boundary crossing experience need to be further explored. Aim of this paper is therefore to analyze what tutorship conditions sustain the development of critical reflexivity in internship. For this purpose, we will present the case study of an internship program run by one of the largest universities in northern Italy. 相似文献
114.
Giuseppe Coratella Sidney Grosprêtre Philippe Gimenez Laurent Mourot 《European Journal of Sport Science》2018,18(8):1110-1118
The present study aimed to investigate the effects of a standardized fatiguing protocol on central and peripheral fatigue in knee-flexors and knee-extensors. Thirteen healthy men (age: 23?±?3 years; height: 1.78?±?0.09 m; body-mass: 73.6?±?9.2?kg) volunteered for the present study. Maximal voluntary contraction (MVC), Electromyography (EMG) activity, voluntary activation level (VAL) as an index of central fatigue and twitch potentiation as an index of peripheral fatigue were measured before and after the fatiguing protocol. The fatiguing protocol consisted of a 0.6 duty-cycle to exhaustion (6?s isometric contraction, 4?s recovery) at 70% MVC. After the fatiguing protocol, MVC decreased in both (Effect-size (ES)?=?1.14) and knee-extensors (ES?=?1.14), and EMG activity increased in both knee-flexors (ES?=?2.33) and knee-extensors (ES?=?1.54). Decreases in VAL occurred in knee-flexors (ES?=?0.92) but not in knee-extensors (ES?=?0.04). Decreases in potentiation occurred in both knee-flexors (ES?=?0.84) and knee-extensors (ES?=?0.58). The greater central occurrence of fatigue in knee-flexors than in knee-extensors may depend on the different muscle morphology and coupled with a greater tolerance to fatigue in knee-extensors. The present data add further insight to the complicated knee-flexors-to-knee-extensors strength relationship and the mechanisms behind the different occurrence of fatigue. 相似文献
115.
Giuseppe Gibertini Donato Grassi Carlo Macchi Giuseppe De Bortoli 《Sports Engineering》2010,12(3):155-161
The present paper describes the activity carried out to investigate the aerodynamic effects of cycling shoes for time trial
competitions. This subject has not been widely studied but can be important for an accurate aerodynamic optimisation of a
time trial cyclist. The study was carried out by means of wind tunnel testing: an appropriate test setup and an appropriate
test procedure (based on “effective angle of attack approach”) were developed in order to produce realistic test conditions.
The developed testing procedure was applied to two different shoe models, differently fastened. Furthermore, an important
point was the investigation of the overshoe effect. The results showed that the power required to overcome the shoe’s drag
is almost a tenth of the total power and that differences between the shoes can affect the cyclist’s performance. 相似文献
116.
Giuseppe Grassi Author Vitae 《Journal of The Franklin Institute》2010,347(2):438-451
Projective synchronization is a type of chaos synchronization where the response system states are scaled replicas of the drive system states. This paper deals with the propagation of projective synchronization in a series connection of N chaotic discrete-time drive systems and N response systems. By exploiting an observer-based approach, the paper demonstrates that dead-beat projective synchronization (i.e., exact synchronization in finite time for any scaling factor) is achieved between the nth drive and nth response systems. In particular, it is shown that projective synchronization starts from the innermost (Nth) drive-response system pair and propagates toward the outermost (first) drive-response system pair. Only a single scalar synchronizing signal connects the cascaded drive and response systems. Finally, an example illustrates the propagation of different types of chaos synchronization in a series connection consisting of a Gingerbreadman map, a third order hyperchaotic Henon map and a Lozi map. 相似文献