Informatics Publishing Limited

Pramod Kumar Singh

Abstract

Indicator plants have been used to survey the effects of air pollution from a single source or cluster of sources on horticultural, agricultural and forestry crops or on natural vegetation. However there are many tree species for which studies are not available in the literature. Tree species are exposed to a variety of pollutants in field conditions varying in either high or low concentrations. Most of the studies ignored the possible impact of pollutants in low concentrations. Trees are continuously exposed to air pollution in the field, but in experimental studies, plants are exposed to single air pollutant for shorter duration, so the responses observed during experimental studies are difficult to extrapolate to field conditions. Air Pollution Tolerance Index (APTI) is normally used for the relative susceptibility of trees species toward air pollutants. APTI uses only four parameters: ascorbic acid, total chlorophyll, leaf extract PH and relative water content. APTI gives a broad idea of pollution tolerance of plants. However based on the APTI, some of the plants are identified in decreasing order of the air pollution tolerance which is as follows: Mangifera indica > Dalbergia sissoo > Cassia fistula > Azadirachta indica > Polyalthia longifolia > Ficus religiosa> Ficus benghalensis.

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Amar Nath Prasad ¹, Pramod Kumar Singh ²

Affiliations
1 Dept. of English, Jagadam College, J.P. University, Chapra, IN
2 S.P.G. Inter College, Daudpur, Saran (Bihar), IN

Abstract

A true art is not meant for teaching and preaching. Its primary function is to give delight;its purpose is chiefly aesthetic. Only a writer, who maintains a perfect blending of both feeling and form, can push upward the art at its zenith. In the works of Mahesh Dattani, we find a very fine example of true art.

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Pramod Kumar Singh ¹, Sangita Gupta ¹

Affiliations
1 DLIS, University of Jammu, Jammu & Kashmir, IN

Abstract

The present study tries to highlight the current status of open access journals listed in DOAJ (Directory of Open Access Journals) in the field of Library and Information Science. A total of 132 journals were consulted for the study. The article analyses country wise, year wise and language wise distribution of the journals. The paper also discusses the periodicity of the journals and index coverage area, etc. The paper reveals that open access publications is worthwhile as maximum numbers of journals belong to peer, blind and double-blind peer-reviewed categories. The present paper also helps to measure the publication pattern of various open access journals.

Keywords

Open Access Journals, DOAJ, Open Access Publication, Publication Pattern.

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