Finite-amplitude vibration of orthotropic axisymmetric variable thickness annular plate

Call number: LD2668 .T4 1978 A94Master of Scienc

Giotto navigation support

Cooperative efforts between NASA and the European Space Agency (ESA) in supporting the flight of Giotto to Halley's Comet included prelaunch checks of ESA navigation software and delivery of validated DSN radio metric tracking data during the mission. Effects of drag from passing through the coma are seen in data received pre and post encounter. The post encounter Giotto trajectory provides a solar occultation in January 1988, prior to returning to the Earth in 1990 for possible retargeting to yet another comet

Studies on Hepatoprotective Properties of Leaf Extracts of Azadirachta indica A. Juss (Meliaceae)

The present study was carried out to evaluate the hepatoprotective role of leaf extracts of Azadirachta indica A. Juss. Hepatoprotective activities of ethanolic and aqueous extracts of A. indica were examined against carbon tetrachloride induced liver damage in mice using silymarin as control. Enzyme activities of Serum Glutamate Oxaloacetate Transaminase (SGOT), Serum Glutamate Pyruvate Transaminase (SGPT) and Alkaline Phosphatase (ALP) were analyzed. Phytochemical leaf extracts of A. indica exhibited significant hepatoprotective activity. Ethanolic and aqueous leaf extracts of A. indica exhibited moderate activity over carbon tetrachloride treated animals. Results confirm the traditional - ethnomedicinal use of A. indica as a potential source of hepatoprotective agent

Investigations on Hepatoprotective Activity of Leaf Extracts of Aegle marmelos (L.) Corr. (Rutaceae)

The present study was carried out to screen and evaluate the hepatoprotective activity of leaf extracts of Aegle marmelos (L.) Corr. Hepatoprotective activities of ethanolic and aqueous extracts of A. marmelos were examined against carbon tetrachloride induced liver damage in mice using silymarin as control. Enzyme activities of Serum Glutamate Oxaloacetate Transaminase (SGOT), Serum Glutamate Pyruvate Transaminase (SGPT) and Alkaline Phosphatase (ALP) were analyzed. Results indicate that ethanolic and aqueous leaf extracts of A. marmelos had moderate activity over carbon tetrachloride treatment as compared to control. Results of the present investigation confirm the traditional uses of this plant as a potential hepatoprotective agent

Imaging modalities in acute ischemic stroke

As "time is brain", acute ischemic stroke is considered a medical emergency. With the introduction of thrombolytic therapy and availability of modern neuroimaging modalities, timely diagnosis of an ischemic lesion, exclusion of intracerebral hemorrhage, assessing the degree of brain injury, and evaluation of cerebral vasculature is necessary in acute stroke management. In this review we will highlight the importance of available imaging modalities used to assess patients with acute ischemic stroke.Includes bibliographical reference

TRAPEZOIDAL NEUTROSOPHIC FUZZY GRAPHS

The concept of this research is introduced to interval-valued trapezoidal neutrosophic fuzzy graph which is combined to trapezoidal fuzzy numbers and interval-valued neutrosophic fuzzy graph. In this analysis, proposed algorithm finds source node and destination node because of the shortest path problem . In this research, we apply trapezoidal number with interval-valued neutrosophic fuzzy graph and finding their score function. Eventually an illustrative example to explain, to easy way of shortest path fuzzy graph

THE DOMINATION OF ZERO DIVISOR GRAPH ON THE LINE GRAPH

The directed Zero divisor graph is a graph constructed out of a non-Commutative ring R and its non-zero divisors. In this paper we find various domination parameter for the zero-divisor graph. For all commutative rings provides characterization with unity of total perfect codes. In this paper we study the characterization of eigenvaluesand adjacency matrix. We find the numerical example of non-zero divisor grap

KNOT THEORY-SOME BASIC CONCEPTS

A knot made out of a string are often deformed in space without cutting open the closed knot.The deformed knot is taken into account to be an equivalent because the original kno

Individual Theory of Tholkappiyam

There are many ancient language families in the world. Among them, the Dravidian language family is considered essential. The grammatical system and its trends have changed at various stages in the grammar composed in Tamil among the other languages. Grammar is about explaining those rules. The concept of individual theory develops by interpreting the structure of a language with structural order, using a specific grammatical theoretical concept for a given language over a period of time. Individualism does not operate in the context of any language, but it can construct the grammar of a language written over a period of time. The concepts of grammar are written under the categories such as, summation, type, extension, genealogy, etc., by using social, political, and academic problems to present individual theory. The interpretation of the structural order of language as a separate text without a linguistic background is consistent with the concept of individualism

Political and socio-economic instability: does it have a role in the HIV/AIDS epidemic in sub-Saharan Africa?

(Case studies from selected countries)Many sub-Saharan African countries are confronted by the HIV/AIDS epidemic. This article reviews academic literature in the social sciences and health to discover why HIV/AIDS has become an epidemic in sub-Saharan Africa and not in other parts of the world. This was studied by examining the social determinants of diminishment of tradition and social cohesion in terms of political, social and economic problems. Four countries in this region were selected for this case study, namely South Africa, Botswana, Uganda and Zimbabwe. The findings showed that instability in socio-economic and political aspects in these nations was responsible for creating a suitable environment for the spread of HIV/AIDS infection.  This paper concludes by using the theories of collective action/responsibility and social cohesion to hypothesise that the breakdown of social ties due to various kinds of conflicts and unrest is one of the main contributors to the HIV/AIDS epidemic.Keywords: HIV, violence, social cohesion, connectivity, Prem-Achilles hypothesis, sub-Saharan Africa.De nombreux pays sub-sahariens africains sont confrontés á l’épidémie du VIH/SIDA. Cet article des revues de la littérature académique des sciences sociales et de la santé á pour but de découvrir pourquoi le VIH/SIDA est devenu une épidémie en Afrique sub-saharienne par rapport aux autres parties du monde. Ceci a été étudié en examinant les déterminants sociaux de la diminution de la tradition et la cohésion sociale en termes de problèmes politiques, sociaux et économiques. Pour ce cas d’études 4 pays dans cette région ont été sélectionnés, à savoir l’Afrique du Sud, le Botswana, l’Ouganda, et le Zimbabwe. Les résultats ont montré que l’instabilité politique et socio-économique est responsable de la création d’un environnement favorable á la propagation de l’infection du VIH/SIDA. Ce document conclus en utilisant la théorie de l’action collective/responsabilité et la cohésion sociale l’hypothèse que la rupture des liens sociaux en raison de divers types de conflits et de troubles reste l’un des principaux contributeurs á la pandémie du VIH/SIDA