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Richard Kozoll Margery Osborne Georgia Earnest GarcÍA 《International journal of qualitative studies in education》2013,26(4):567-585
In this paper the authors draw from interviews with young migrant workers to problematize the question "What is a home?" The argument is made that once we acknowledge alternative images of "home" and the values and priorities that follow, policies and services for migrant workers and their children might take different forms than are currently configured. Migrating, or becoming "homeless," is a choice these families make to maintain their family structure. For these people homed-homeless is not a dichotomy. Rather, the operative word is family. The structure of the family is analyzed as a lifeworld (Habermas, 1984, 1987), or system of values and experiences that defines choices and ways of acting. Importantly, migrant workers travel as families and often as extended families. The unit of the family is assumed. Tensions arise when an individual member of the family questions the assumption of everyone working together for the family unit. When the family decides to break the unit, for example by sending a child away so he/she can attend school, the unit suffers as well as the individual. The sense of power that many assume is located in the home - a particular physical space - is also located in the family and the relationships among persons the word family implies. Social policies and institutions often disregard this distinction. 1 相似文献
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This study compared the physiological responses (oxygen consumption and energy expenditure) of Nordic Walking to regular walking under field-testing conditions. Eleven women (M age = 27.1 years, SD = 6.4) and 11 men (M age = 33.8 years, SD = 9.0) walked 1,600 m with and without walking poles on a level, 200-m track. For women, Nordic Walking resulted in increased oxygen consumption (M = 14.9 ml x kg(-1) x min(-1), SD = 3.2 vs. M = 1 7.9 ml x kg(-1) min(-1), SD = 3.5; p < .001), caloric expenditure (M = 4.6 kcal x min(-1), SD = 1.2 vs. M = 5.4 kcal x min(-1), SD = 1.2; p < .001), and heart rate (M = 113.7 bpm, SD = 12.0 vs. M = 118.7 bpm, SD = 14.8; p < .05) compared to regular walking. For men, Nordic Walking resulted in increased oxygen consumption (M = 12.8 ml x kg(-1) min(-1), SD = 1.8 vs. M = 15.5, SD =3.4 ml x kg(-1) min(-1); p < .01), caloric expenditure (M = 5.7 kcal x min(-1), SD = 1.3 vs. M = 6.9 kcal x min(-1), SD = 1.8; p < .001), and heart rate (M = 101.6 bpm, SD = 12.0 bpm vs. M = 109.8 bpm, SD = 14.7; p < .01) compared to regular walking. Nordic Walking, examined in the field, results in a significant increase in oxygen use and caloric expenditure compared to regular walking, without significantly increasing perceived exertion. 相似文献
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This article evaluates the relationship between social-economic factors, students’ factors, student academic goals and performance of students. The study adopts a cross-sectional survey, with largely quantitative approaches. A sample of 950 students was randomly and proportionately drawn from undergraduates in four institutions of higher learning. A response rate of 61% was recorded. We observed significant positive relationships between student factors (except competence in quantitative subjects and grades earned in high school) and student performance, as well as student learning goals and student academic performance. We did not observe a significant relationship between socio-economic factors and student performance at higher institutions. The model was significant, and explained 47% of the variation in student performance. The study recommends that higher institutions should place considerable emphasis on inculcating a reading/preparation culture among students, enforce attendance at lectures and encourage students to set learning goals, if they are to improve the performance of their students. 相似文献
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Sodium bicarbonate ingestion does not alter the slow component of oxygen uptake kinetics in professional cyclists 总被引：3，自引：0，他引：3
Santalla A Pérez M Montilla M Vicente L Davison R Earnest C Lucía A 《Journal of sports sciences》2003,21(1):39-47
We examined the effects of pre-exercise sodium bicarbonate (NaHCO3) ingestion on the slow component of oxygen uptake (VO2) kinetics in seven professional road cyclists during intense exercise. One hour after ingesting either a placebo or NaHCO3 (0.3 g x kg body mass(-1)), each cyclist (age, 25 +/- 2 years; VO2max, 74.7 +/- 5.9 ml x kg(-1) x min(-1); mean +/- s) performed two bouts of 6 min duration at an intensity of 90% VO2max interspersed by 8 min of active recovery. Gas exchange and blood data (pH, blood lactate concentration and [HCO3-]) were collected during the tests. In both bouts, the slow component of VO2 was defined as the difference between end-exercise VO2 and the VO2 at the end of the third minute. No significant difference was found in the slow component of VO2 between conditions in the first (NaHCO3, 210 +/- 69 ml; placebo, 239 +/- 105 ml) or second trial (NaHCO3, 123 +/- 88 ml; placebo, 197 +/- 101 ml). In conclusion, pre-exercise NaHCO3 ingestion did not significantly attenuate the VO2 slow component of professional road cyclists during high-intensity exercise. 相似文献
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