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1.
T. Padmanabhan 《Resonance》2011,16(10):950-955
Descartes discovered the link between algebra and geometry, which forms the cornerstone of applied geometry today. 相似文献
2.
T Padmanabhan 《Resonance》2007,12(2):4-16
The discovery of the cosmic microwave background radiation in 1965 was a defining moment in the history of cosmology — the
science that deals with the universe as a whole, its origin, evolution and future. This discovery was recognized with Nobel
Prizes to Penzias and Wilson in 1978. The Nobel Prize in Physics for 2006 further acknowledged the importance of the study
of this background radiation. The precise measurement of the spectrum of this radiation and its variation across the sky have
helped our understanding of the evolution of structures in the universe. This article explains these discoveries and their
importance.
T Padmanabhan is a professor at IUCAA, Pune. He is interested in all aspects of theoretical physics, and especially in those
in which gravity plays a role. 相似文献
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4.
T. Padmanabhan 《Resonance》2012,17(6):532-537
With the works of Cavendish, Priestley and Lavoisier, chemistry emerged as an exact science. 相似文献
5.
T. Padmanabhan 《Resonance》2011,16(7):663-669
What was remarkable about the most misunderstood medieval scientist’s discoveries was the way he arrived at them — by direct
observation. 相似文献
6.
T. Padmanabhan 《Resonance》2008,13(7):610-618
Thomas precession is a curious effect in special relativity which is purely kinematical in origin and illustrates some important
features of the Lorentz transformation. It also has a beautiful geometric interpretation. We will explore these in this and
the next installment.
T Padmanabhan works at IUCAA, Pune and is interested in all areas of theoretical physics, especially those which have something
to do with gravity. 相似文献
7.
T. Padmanabhan 《Resonance》2008,13(8):706-715
The Foucault pendulum is an elegant device that demonstrates the rotation of the Earth. After describing it, we will elaborate
on an interesting geometrical relationship between the dynamics of the Foucault pendulum and Thomas precession discussed in
the last installment1. This will help us to understand both phenomena better.
T Padmanabhan works at IUCAA, Pune and is interested in all areas of theoretical physics, especially those which have something
to do with gravity. 相似文献
8.
K. Poornima M. Cariappa K. Asha H. P. Kedilaya M. Nandini 《Indian journal of clinical biochemistry : IJCB》2003,18(2):197-205
An adequate antioxidant reserve which is usually present in a vegetarian diet is associated with higher life expectancy. On
the other hand habitual consumption of fish is associated with lower risk of cardiovascular diseases which is attributed to
the polyunsaturated fatty acids (PUFA) present in it. However the PUFA are readily susceptible to oxidation leading to the
formation of free radicals which is known to be involved in the causation of several diseases.
The oxidant-antioxidant status of 23 vegetarians and 22 fish eaters was studied by determining the plasma lipid peroxides
measured as malondialdehyde (MDA) and the antioxidants, viz. glutathione (GSH), ascorbic acid, ceruloplasmin and uric acid.
Results show that the ascorbic acid values were significantly higher in vegetarians. In addition, MDA correlated negatively
with ascorbic acid only in vegetarians. However, correlation of MDA with glutathione showed a significant negative correlation
only in fish eaters. There was no statistically significant difference in the MDA, GSH, ceruloplasmin and uric acid levels.
The mechanism behind these findings are not clear and needs to be explored. 相似文献
9.
Afzal Ahmad Rukmini Mysore Srikantiah Charu Yadav Ashish Agarwal Poornima Ajay Manjrekar Anupama Hegde 《Indian journal of clinical biochemistry : IJCB》2016,31(4):458-462
The cause of more insulin resistance in female than males are still unknown. To know the cause from early life, normal values of relevant parameters are required. So, aim of this study was to determine the reference levels of glucose and insulin in cord blood of term newborns and to examine their effects on gender, placental and birth weight of term newborns. In cross sectional study 60 consecutive term newborns were included from constituent hospitals. Placental and birth weights were measured and cord blood was collected for estimation of serum insulin and plasma glucose. Plasma glucose estimation was done by auto analyzer (GOD–POD method) and serum insulin analysis was done using Insulin ELISA Kit. After analysis, mean ± 2SD used for estimating cord blood insulin and glucose levels, which were 10.1 ± 7.8 μIU/mL and 67.8 ± 33.8 mg/dL respectively. Correlation of insulin with both birth weight and placental weight were r = 0.359 and 0.41 respectively; p < 0.001. Interestingly we found higher insulin levels in females as compared to male newborns in spite of having lower birth weight in them. In conclusion this study reported the levels of insulin and glucose in cord blood of term newborns. Incidentally, this is the first study as per our knowledge to report significant correlation between cord blood insulin, glucose with birth weight, placental weight and gender in south India. Female newborns had higher insulin levels than males, despite lesser birth weight can be attributed to intrinsic insulin resistance in them. 相似文献
10.
Diabetics showed significantly raised levels of total and LDL cholesterol, (257.0±68.88 mg% 173.5±67.7mg% respectively) compared
to controls matched with age, sex and socioeconomic status. No significant difference was observed in these parameters in
diabetics with and without retinopathy. 相似文献