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1 Ｉｎｔｒｏｄｕｃｔｉｏｎ Ｉｎｒｅｃｅｎｔｙｅａｒｓ ,ｈｉｇｈ ｐｏｗｅｒｌａｓｅｒｄｉｏｄｅｓｈａｖｅｂｅｅｎｅｍｐｌｏｙｅｄａｓｐｕｍｐｉｎｇｓｏｕｒｃｅｓｗｉｔｈａｖｉｅｗｔｏｄｅｖｅｌｏｐｃｏｍｐａｃｔｕｐ ｃｏｎｖｅｒｓｉｏｎｖｉｓｉｂｌｅ ｌａｓｅｒｓｙｓｔｅｍｓ .Ｔｈｅｆｒｅ ｑｕｅｎｃｙｃｏｎｖｅｒｓｉｏｎｏｆｉｎｆｒａｒｅｄｌｉｇｈｔｔｏｖｉｓｉｂｌｅｌｉｇｈｔｈａｓｂｅｅｎｅｘｔｅｎｓｉｖｅｌｙｉｎｖｅｓｔｉｇａｔｅｄｆｏｒｒａｒｅ ｅａｒｔｈｄｏｐｅｄｃｒｙｓｔａｌｓａｎｄｇ… 相似文献
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Peter M. Fowler Darren J. Paul Gustavo Tomazoli Abdulaziz Farooq Richard Akenhead Lee Taylor 《European Journal of Sport Science》2017,17(9):1110-1118
The purpose was to assess sleep patterns, quantity and quality in adolescent (16.2?±?1.2 yr) Middle Eastern academy soccer players (n?=?20) and the influence of an intermission upon these characteristics. On a 17-day training camp (located one time zone west of home) including three discrete matches, sleep was assessed pre- (PRE) and post-match (POST) via wrist actigraphy. Retrospective actigraphy analysis identified sleep characteristics, including if players experienced a sleep intermission (YES) or not (NO) proximal to dawn, and bedtime (hh:mm), get-up time (hh:mm), time in bed (h), sleep duration (h) and sleep efficiency (%). Within YES two bouts were identified (BOUT1 and BOUT2). No differences were seen between PRE and POST, nor between BOUT1 and BOUT2 (p?>?.05). Overall players did not meet National Sleep Foundation (NSF) guidelines (7:04?±?1:16?h vs. recommended 8–10?h for 14–17 yr). Sleep duration was significantly reduced (～ ?13% or ?1:06) in YES compared to NO (6:33?±?1:05 vs. 7:29?±?1:17, p?<?.01). Despite players in YES waking earlier due to an intermission, they did not compensate for this with a later wake time, rising significantly earlier compared to NO (09:40?±?00:38 vs. 10:13?±?00:40, p?<?.05). These players on average do not obtain sufficient sleep durations relative to NSF guidelines, with decrements increased by an intermission proximal to dawn. High inter- and intra-individual variance in the players sleep characteristics indicates the need for individualized sleep education strategies and interventions to promote appropriate sleep. 相似文献
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Jeremy R. Schultz Steven Simpson Abdulaziz M. Elfessi 《The Journal of environmental education》2013,44(2):98-108
This study is a comparative analysis of the environmental philosophies of college undergraduates enrolled in a Midwestern university. Two courses were used for the research, one from a recreation management curriculum and the other from environmental studies. The study utilized a survey instrument called the Environmental Action and Philosophy Matrix to determine the extent to which students’ environmental attitudes are based on scientific or religious rationale, as well as anthropocentric or biocentric perspectives. Findings show students to possess scientific underpinnings for their viewpoints, regardless of anthropocentric or biocentric tendencies. In addition, the environmental studies students displayed more biocentric attitudes than the recreation management students. 相似文献
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Alabdulaziz Mansour Saleh Aldossary Sarah Mubarak Alyahya Sahar Abdulaziz Althubiti Hind Muhareb 《Education and Information Technologies》2021,26(3):2685-2713
Education and Information Technologies - The objective of this research is to identify the effectiveness of the GeoGebra program in developing academic achievement and ensuring survival of the... 相似文献
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The effect of pressure on the hydrolysis rates and the degradation kinetics of environmentally persistent omethoate pesticide was studied. The results showed that the values of kobs increased and the values of activation volume (AV) decreased with increasing pressure. Among pH conditions (3.58, 6.01 and 8.5), pH 8.5 was found to be the unstable condition and its half-life was reduced from 263 min at 1 atm to 19.37 min at 10 atm. These results describe that high-pressure hydrolysis is a useful technique for the conversion of toxic organic phosphorus into inorganic phosphorus. 相似文献
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1 Ｉｎｔｒｏｄｕｃｔｉｏｎ Ｈｅａｖｙｍｅｔａｌｆｌｕｏｒｉｄｅｓｇｌａｓｓｅｓａｒｅｏｆｐｒｉｍａｒｙｉｎｔｅｒ ｅｓｔｆｏｒｉｍｐｏｒｔａｎｔａｐｐｌｉｃａｔｉｏｎｓｉｎｔｈｅｏｐｔｉｃａｌｃｏｍｍｕｎｉ ｃａｔｉｏｎｆｉｅｌｄ ,ｄｕｅｔｏｔｈｅｉｒｔｒａｎｓｐａｒｅｎｃｙｔｏｌｉｇｈｔｓｒａｎｇ ｉｎｇｆｒｏｍＵＶｔｏｉｎｆｒａｒｅｄｒｅｇｉｏｎｓ.Ｍｏｒｅｏｖｅｒ ,ｔｈｅｉｒｍｅ ｃｈａｎｉｃａｌｓｔｒｅｎｇｔｈｍａｋｅｓｔｈｅｍｇｏｏｄｃａｎｄｉｄａｔｅｓｆｏｒｗｉｎ ｄｏｗｓ,ｌａｓｅｒｈ… 相似文献
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Andrew Parker Haydn Morgan Samaya Farooq Ben Moreland Andy Pitchford 《Sport, Education and Society》2019,24(3):298-310
Numerous sport-based interventions exist which target marginalised or ‘at-risk’ young people with the intention of enabling some form of social change for programme participants. Very often, the objective of such interventions is the acquisition and development of qualities associated with ‘good citizenship’. However, critical scholars have noted how sport-based initiatives are frequently used as a form of social control, focusing on the development of personal responsibility. As such, these initiatives accentuate more passive forms of citizenship, as opposed to more active forms of citizenship towards which many educational policies and programmes are aimed. Nevertheless, there is a limited amount literature which explores the connection between sport-based interventions and citizenship development within marginalised or ‘at-risk’ youth populations. This paper presents findings from a small-scale, qualitative study of one such (football-based) intervention located in a number of inner-city boroughs of London, UK. Placing the accounts of programme participants and staff at the centre of the analysis, the paper: (i) uncovers the practicalities and nuances of football being utilised as a tool for social engagement, and (ii) explores broader notions of personal and behavioural development in relation to the acquisition of citizenship qualities. The paper concludes by suggesting that sporting activity may confer citizenship benefits for young people, but only when integrated into wider programmes of social support and community engagement. 相似文献
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Alhubaishy Abdulaziz Aljuhani Abdulmajeed 《Education and Information Technologies》2021,26(4):4647-4662
Education and Information Technologies - Digital Transformation (DT) has become the core motivator for almost all organizations worldwide. In order to cope up with the new demands, Higher Education... 相似文献
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M. Farooq Wahab 《Resonance》2009,14(10):996-1002
A functional monochromator model in a cardboard box, made from rotatable grating using a digital versatile disk is described
to highlight the working principles of a UV-Vis monochromator. The light source is a bright white LED and the colored bands
from the exit are displayed on the screen. The concept of absorption, complementary color, excitation and fluorescence, flame
emission spectrum, and wavelength dependence of light scattering can be visually shown in this model. With a minor modification,
one can use the same box to monitor flame emission spectrum of sodium and different light sources. As an optional activity,
the same properties are observed on a scanning spectrophotometer. 相似文献