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1.
P. K. Rai D. Jaiswal S. Mehta D. K. Rai B. Sharma Geeta Watal 《Indian journal of clinical biochemistry : IJCB》2010,25(2):175-181
This study deals with the effects of freeze dried rhizome powder of Curcuma longa (C. longa) dissolved in milk on normal as
well as diabetic models. Diabetes of type II and type I was within 3 days of a single administration of doses of 45 and 65
mg kg−1 of streptozotocin respectively. Various parameters such as blood glucose levels, triglycerides, total cholesterol, high density
lipoprotein, very low density lipoprotein, low density lipoprotein, serum glutamic oxaloacetic transaminase, serum glutamic
pyruvate transaminase, alkaline phosphatase, creatinine, hemoglobin, urine protein and urine sugar in addition to body weight
were taken in to consideration and were analyzed after administration of variable doses of rhizome powder. The dose of 200
mg kg−1 was identified as the most effective dose as it increased HDL, Hb and bw (P<0.05) with significant decrease in the levels
of blood glucose, lipid profile and hepatoprotective enzymes (P<0.001). 相似文献
2.
Geeta Verma 《Journal of Science Teacher Education》2009,20(4):313-332
The study explored the influence of university-based teacher education courses on pre-service middle and high school teachers’
experiences with multicultural themes in a secondary science alternative certification program. Eight participants (N = 8), six women and two men, volunteered to be a part of the study that took place over a period of four semesters. Qualitative
data was collected, coded and analyzed to make meaning of the participants’ experiences. Data comprised of participants’ reflective
journals, personal and group interviews, and classroom observations done in middle school practicum and high school student
teaching placements. The findings indicated that while the participants became more familiar with the themes of multicultural
education, many did not demonstrate fluency with these themes and struggled with balancing their responsibilities as a science
teacher and a culturally competent teacher. 相似文献
3.
Santosh Kumar Singh Achyut Narayan Kesari Prashant Kumar Rai Geeta Watal 《Indian journal of clinical biochemistry : IJCB》2007,22(2):48-52
The present study reveals the effect of Musa paradisiaca stem juice on blood glucose level (BGL) of normal & diabetic rats.
The dose of 500 mg/kg bodyweight produces a significant rise of 28.3% in blood glucose level after 6h of oral administration
in normal rats. Whereas, in sub diabetic rats the same dose produces a rise of 16.4% in blood glucose levels within 1h during
glucose tolerance test (GTT) and a rise of 16% after 4 h in fasting blood glucose levels of severe diabetic cases. These results
were unexpected and important to report as other species of Musa like Musa sapientum has been reported for its hypoglycemic
effect. 相似文献
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Improving weak teaching may be one of the most effective means of raising pupil achievement. However, teachers’ classroom practices and the teaching ‘process’ may matter more to student learning than teachers’ observed résumé characteristics (such as certification and experience). There may also be important differences in teacher characteristics across government and private schools which may help explain the large documented public-private achievement differences often found in studies. This paper delves into the black-box representing ‘teaching’ to uncover the teacher characteristics and teaching practices that matter most to pupil achievement. This is done using unique school-based data, collected in 2002-2003 from government and private schools from one district in Punjab province in Pakistan. The data allow exploitation of an identification strategy that permits the matching of students’ test scores in language and mathematics to the characteristics of teachers that teach those subjects. Within pupil (across subject rather than across time) variation is used to examine whether the characteristics of different subject teachers are related to a students’ mark across subjects. The data are also unique in asking all subject teachers questions pertaining to their teaching practices and these, often unobserved, ‘process’ variables are included in achievement function estimates. Our pupil fixed-effects findings reveal that the standard résumé characteristics of teachers do not significantly matter to pupil achievement. Perversely, however, teachers are found to be rewarded with higher pay for possessing these characteristics, highlighting the highly inefficient nature of teacher pay schedules. Our findings also show that teaching ‘process’ variables matter significantly to student achievement. There are important differences across school-types. 相似文献
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Angela R. Dixon Shrinidhi Rajan Chuan-Hsien Kuo Tom Bersano Rachel Wold Nobuyuki Futai Shuichi Takayama Geeta Mehta 《Biomicrofluidics》2014,8(1)
We present a microfluidic device designed for maintenance and culture of non-adherent mammalian cells, which enables both recirculation and refreshing of medium, as well as easy harvesting of cells from the device. We demonstrate fabrication of a novel microfluidic device utilizing Braille perfusion for peristaltic fluid flow to enable switching between recirculation and refresh flow modes. Utilizing fluid flow simulations and the human promyelocytic leukemia cell line, HL-60, non-adherent cells, we demonstrate the utility of this RECIR-REFRESH device. With computer simulations, we profiled fluid flow and concentration gradients of autocrine factors and found that the geometry of the cell culture well plays a key role in cell entrapping and retaining autocrine and soluble factors. We subjected HL-60 cells, in the device, to a treatment regimen of 1.25% dimethylsulfoxide, every other day, to provoke differentiation and measured subsequent expression of CD11b on day 2 and day 4 and tumor necrosis factor-alpha (TNF-α) on day 4. Our findings display perfusion sensitive CD11b expression, but not TNF-α build-up, by day 4 of culture, with a 1:1 ratio of recirculation to refresh flow yielding the greatest increase in CD11b levels. RECIR-REFRESH facilitates programmable levels of cell differentiation in a HL-60 non-adherent cell population and can be expanded to other types of non-adherent cells such as hematopoietic stem cells. 相似文献
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Santosh Kumar Singh Prashant Kumar Rai Shikha Mehta Rakesh Kumar Singh Geeta Watal 《Indian journal of clinical biochemistry : IJCB》2009,24(4):410-413
The aim of the study was to ascertain the role of ethanolic extract of Cynodon dactylon against hepatic complications in streptozotocin
(STZ) induced type 2 diabetic models. Effect of the pre identified most effective dose of 500 mg/kg body weight was studied
on hepatic injury caused by chemically induced diabetes by 55 mg/kg body weight i.p. injection of STZ in male Wistar rats.
The dose of 500mg/kg body weight given once daily for 14 days reduced the levels of serum glutamate oxaloacetate transaminase,
serum glutamate pyruvate transaminase, alkaline phosphatase, creatinine and urine sugar significantly (P<0.05) with increase
in total protein, haemoglobin and body weight was increased. High LD50 validates its high margin of safety. 相似文献
10.
Dolly Jaiswal Prashant Kumar Rai Geeta Watal 《Indian journal of clinical biochemistry : IJCB》2009,24(1):88-93
The present study defines the systematic evaluation and the role of minerals in glycemic potential of aqueous extract of Withania
coagulans fruits in order to develop an effective and safe alternative treatment for diabetes mellitus. Laser Induced Breakdown
Spectroscopy was used for glycemic element detection. The study is based on the results of lowering in blood glucose levels
of normal, sub, mild and severely diabetic rats assessed during fasting blood glucose, glucose tolerance test and post prandial
glucose studies. The dose of 1000mg/ kg was identified as the most effective dose, which reduces the Fasting Blood Glucose
level maximum by 33.2% at 4h in normal rats during fasting blood glucose studies. Glucose tolerance test studies of normal,
sub and mild diabetic rats showed the maximum reduction of 15.7, 28.9 and 37.8% at 3h respectively. Long-term study in case
of severely diabetic rats showed reduction of 52.9 and 54.1% in Fasting Blood Glucose and Post Prandial Glucose levels respectively
after 30 days of treatment. The present study, besides confirming hypoglycemic and antidiabetic activities of aqueous extract
of W. coagulans, helps in identifying the role of trace minerals like Mg & Ca responsible for antidiabetic potential of this
potent indigenous shrub. 相似文献