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131.
132.
This study examined the relationship of self-concept, school belonging, school engagement to school performance of Caucasian-
and African-American students. The main purpose is to assess the ethnicity-based differences in these psycho-social constructs
and to explore their differential relationship to school achievement in high-school students from different ethnic background.
The data were collected through a survey questionnaire in three school divisions in the Southwest region of Virginia of the
United States. The results showed significant ethnicity-based difference in self-concept and in school engagement, but no
significant difference in school belonging. The achievement differences were also significant, Caucasian students being higher
on self-reported grades. In the regression model, self-concept was not a significant predictor of school outcomes, while school
belonging had a significant relationship to school achievement for African-American students. Both self-concept and school
engagement were significant for Caucasian students. The findings of the study provide better understanding of the relationship
of these variables to school achievement and point to some policy-relevant implications. 相似文献
133.
Goswami BK Pandey RK Rathour KS Bhattacharya C Singh L 《Journal of Zhejiang University. Science. B》2006,7(11):873-875
INTRODUCTION Tomato (Lycopersicon esculentum, Mill.), an important vegetable crop is heavily attacked by root knot nematode, Meloidogyne spp. For the manage-ment of root knot nematodes although chemical nematicides were used till 1982, due to their high cost, toxic effect on beneficial soil borne microorganism and carcinogenic effect on human beings alternative approaches are practiced mainly through eco-friendly means like biological control agents, organic amendments, etc. (Singh and … 相似文献
134.
135.
Vaneet Kaur Minni Verma Amandeep Kaur Shalini Gupta Kamaljit Singh 《Indian journal of clinical biochemistry : IJCB》2012,27(3):290-295
Overnight fasting samples of 1,031 apparently healthy people of Punjab visiting the hospital over a period of 3 years were tested for serum lipid profile. The mean ± SD of serum total cholesterol, triglycerides, high density lipoprotein cholesterol, low density lipoprotein cholesterol and very low density lipoprotein cholesterol in mg/dl were 182.2 ± 33.9, 122.4 ± 33.4, 44.1 ± 6.8, 113.9 ± 32.0, 24.6 ± 7.1 respectively. When these subjects were grouped according to age and sex, no appreciable difference was observed between most of the groups. Serum triglycerides were found to be low and HDL-C was high in females when compared with males of similar age and vice versa. With advancing age, total cholesterol and low density lipoprotein cholesterol levels were found to be higher in women. The present study suggests that the obtained lipid values should be taken into consideration during clinical evaluation. 相似文献
136.
Sanjana Bhagat Pradeep Kumar Patra Amar Singh Thakur 《Indian journal of clinical biochemistry : IJCB》2012,27(4):394-399
This study was undertaken to determine the association of inflammatory biomarker, oxidative stress and antioxidant capacity marker with fetal haemoglobin (HbF) level among sickle cell trait and sickle cell disease (SCD) patients in Chattisgarh. The study group consisted of 51 SCD (SS) patients with painful episode, 49 SCD (SS) patients with steady state, 50 sickle cell trait (AS) and 50 controls. Malondialdehyde (MDA), CRP, total antioxidant power (FARP), total thiol and HbF levels were quantified. We found a significant positive (p < 0.0001) association between CRP and MDA levels and its inverse association with HbF level in SS patients. We also observed that antioxidant capacity had significantly positively (p < 0.0001) associated with HbF level. The protective effect of HbF was found, because the increase in HbF levels resulted in decrease in lipid peroxidation and inflammation in SCD patients. A decrease in the HbF level and its antioxidant capacity has been associated with the pathogenesis of SCD. These finding may explain the high level of HbF is ameliorating oxidative stress and inflammation in SCD patients. 相似文献
137.
Ghizal Fatima Abbas Ali Mahdi Siddharth Kumar Das Baby Anjum Nar Singh Verma Puneet Kumar Ragini Shrivastava 《Indian journal of clinical biochemistry : IJCB》2012,27(4):340-343
The present study was designed to test the hypothesis of a circadian variation in circulating levels of tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) in women with fibromyalgia syndrome (FMS). Serum levels of IL-6 and TNF-α were measured at 4 h intervals of the day in 50 women with FMS satisfying American College of Rheumatology criteria for FMS (age 36.68 ± 9.89) as well as 50 healthy control women (age 32.82 ± 10.53). Serum TNF-α levels were substantially increased in patients with FMS but showed no circadian variation. In contrast, no difference in the levels of IL-6 was found. Moreover, there was also no circadian variation in both the groups of patients and controls. We conclude that no circadian pattern exists in the circulating levels of serum IL-6 and TNF-α in patients with FMS, although TNF-α levels are found raised in patients with FMS. 相似文献
138.
Purpose:This systematic review and meta-analysis aimed to evaluate the effect of wearable devices for improving physical activity and healthrelated outcomes in cancer survivors.Methods:CINAHL,Cochrane,Ebscohost,MEDLINE,Pubmed,ProQuest Health and Medical Complete,ProQuest Nursing and Allied Health Source,ScienceDirect,and SPORTDiscus databases were searched for randomized controlled trials published before September 1,2020,that evaluated interventions involving wearable devices in cancer survivors.Standardized mean differences(SMDs)were calculated to assess effects on physical activity and health-related outcomes.Subgroup analyses were conducted to assess whether the effects differed by interventions and cancer characteristics.Risk of bias was assessed using the Cochrane risk of bias tool.Results:Thirty-five trials were included(breast cancer,n=15,43%).Intervention durations ranged between 4 weeks and 1 year.Most trials(n=25,71%)involved pedometer-based physical activity interventions.Seven(20%)involved Fitbit-based interventions,and 3(9%)involved other wearable physical activity trackers(e.g.,Polar,Garmin).Compared to usual care,wearable devices had moderate-to-large effects(SMD range 0.54-0.87,p<0.001)on moderate-intensity physical activity,moderate-to-vigorous-intensity physical activity,total physical activity,and daily steps.Compared to usual care,those in the intervention had higher quality of life,aerobic fitness,physical function,and reduced fatigue(SMD range=0.18-0.66,all p<0.05).Conclusion:Wearable physical activity trackers and pedometers are effective tools that increase physical activity and improve health-related outcomes in individuals with cancer.Identifying how these devices can be implemented for longer-term use with other intervention components remains an area for future research. 相似文献
139.
Peer review,Bourdieu and honour: connecting Chinese and Australian intellectual projects 总被引:1,自引:0,他引:1
The reviews of papers for refereed journals are rarely a source of exhilaration, only occasionally a pleasure and frequently dispiriting. Using peer reviews of research containing Chinese concepts, this paper explores different ways of thinking about knowledge, its evaluation and transfer. Bourdieu’s concepts of fields of power, position taking, positioning and honour provide a framework whereby peer reviews are positioned as integral to scholarly argumentation. They are used to test efforts to connect Chinese ideas into the global dynamics of research‐based knowledge, and to teach early career researchers about how to engage in academic disputation. 相似文献
140.
In 1923, R.A. Millikan was awarded the Nobel Prize in Physics for his work on the elementary charge of electricity and on
the photoelectric effect. Recently, historical research had a focus on Millikan’s publication practice, as well as on the
role of his assistant, Harvey Fletcher. Several studies have raised doubts on whether Millikan can actually be taken as a
role model for scientific practice; however, what has not been discussed yet is the question of how the Nobel Committee came
to their decision to award Millikan’s work. Based on archival material from the Nobel Committee, this paper discusses the
nomination procedure, as well as the evaluation process of Millikan’s work. 相似文献