Measurement of the Charged Splash and Re-entrant Albedo of the Cosmic Radiation

Proton and electron balloon measurements of splash and re-entrant cosmic ray albed

High energy electrons and emission of the omnidirectional synchrotron radiation in radio frequency and X-ray regions

High energy electrons and emission of galactic, omnidirectional synchrotron radiation in radio frequency and X rays region

Strain specific effects of low level lead exposure on associative learning and memory in rats.

Exposure to lead (Pb) remains a significant public health concern. Lead exposure in early life impairs the normal development of numerous cognitive and neurobehavioral processes. Previous work has shown that the effects of developmental Pb exposure on gene expression patterns in the brain are modulated by various factors including the developmental timing of the exposure, level of exposure, sex, and genetic background. Using gene microarray profiling, we previously reported a significant strain-specific effect of Pb exposure on the hippocampal transcriptome, with the greatest number of differentially expressed transcripts in Long Evans (LE) rats and the fewest in Sprague Dawley (SD) rats. The present study examined the extent to which this differential effect of Pb on hippocampal gene expression might influence behavior. Animals (males and females) were tested in a trace fear conditioning paradigm to evaluate effects of Pb exposures (perinatal (PERI; gestation to postnatal day 21) or early postnatal (EPN; postnatal day 1 to day 21)) on associative learning and memory. All animals (Pb-exposed and non-Pb-exposed controls) showed normal acquisition of the conditioned stimulus (tone)-unconditioned stimulus (footshock) association. Long Evans rats showed a significant deficit in short- and long-term recall, influenced by sex and the timing of Pb exposure (PERI or EPN). In contrast, Pb exposure had no significant effect on memory consolidation or recall in any SD rats. These results further demonstrate the important influence of genetic background to the functional outcomes from developmental Pb exposure

Proton albedo spectrum observation in low latitude region at Hyderabad, India

The flux and the energy spectrum of low energy (30-100 MeV) proton albedos, have been observed for the first time in a low latitude region, over Hyderabad, India. The preliminary results, based on the quick look data acquisition and display system are presented. A charged particle telescope, capable of distinguishing singly charged particles such as electrons, muons, protons in low energy region, records the data of both upward as well as downward moving particles. Thus spectra of splash and re-entrant albedo protons have been recorded simultaneously in a high altitude Balloon flight carried out on 8th December, 1985, over Hyderabad, India. Balloon floated at an latitude of approx. 37 km (4 mb)

CP-odd weak basis invariants and texture zeros

We construct the CP-odd weak basis invariants from the neutrino mass matrix in a weak basis in which the charged lepton mass matrix is diagonal and find the necessary and sufficient conditions for CP conservation. We study the interrelationships between different CP-odd weak basis invariants to examine their implications for the Dirac and Majorana type CP violating phases for the phenomenologically allowed Frampton-Glashow-Marfatia texture zero structures of the neutrino mass matrix.Comment: 9 pages, three tables, Phys. Rev. D (to appear

The establishment of the Institute of Chartered Accountants of India (ICAI): the first step in the development of an accounting profession in post-independence India

This paper analyses the influence of culture and politics on the establishment of the Institute of Chartered Accountants of India (ICAI) using a theoretical framework, extending the work of Gray (1988) and McKinnon (1986) in which accounting change is analysed into three phases, a source phase, a diffusion phase and a reaction phase. The ICAI is established in a way which is in line with the cultural and social context of India with the ICAI set up under parliamentary charter promulgated through the parliamentary system and with government involvement in the council of the ICAI. In particular, the analysis shows the importance of the relationship between the state and the accounting profession in determining the outcome of accounting change, with in this case, the balance of power being in the hands of the Government

Development of company law in India : the case of the Companies Act 1956

The influence of culture and politics on the promulgation of accounting regulations in the Companies Act 1956 in India immediately post independence is analysed using an exploratory framework based on the work of McKinnon (1986) and Gray (1988). Within the framework, the process of change is analysed into three phases, a source phase, diffusion phase and reaction phase with all phases of change being influenced by intra-system activity, trans-system activity and the social and cultural context of India. In particular, the importance of the role of the Government within the process of accounting change is seen and the social context is seen to influence both the need for change and the process of change