Wszystkie pola: Singh, A. S. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Change in entropy of the spinning black holes
Autorzy:: Mahto, D.
Singh, A. S.
Vineeta, K.
Kumar, A.
Powiązania:: https://bibliotekanauki.pl/articles/411895.pdf
Data publikacji:: 2014
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Event-horizon
AGN
Entropy & Energy
Opis:: Aims: To derive an expression for change in entropy of spinning black holes on the basis of the model for the energy of spinning black holes E _BHs= K_BHs R'_s ( Mahto et al. 2011a) & the model for entropy change δS _bh = [wzór]δE ( Mahto et al. 2011b) and then calculate their values for different test spinning black holes. Study Design: Data for the mass of black holes have collected from the research paper entitled :Super massive Black Holes in Galactic Nuclei: Past Present & Future Research(2005), Space Science Reviews by L. Ferrarese & H. Ford and Black holes in Astrophysics(2005), New Journal Physics by R. Narayan. The data for black hole constant for spinning black holes (K_BHs = 1.214x10⁴⁴) is taken from the paper entitled: Study of Schwarzschild radius with reference to the spinning black holes. Bulletin of Pure and Applied Sciences (2011a). Place and Duration of Study: Department of Physics, Marwari College Bhagalpur and University Department of Physics, T.M.B.U. Bhagalpur, between December 2013 and March 2014. Methodology: A theoretical based work using Laptop to calculate the calculation for change in entropy of different test spinning black holes at Marwari College Bhagalpur and the residential research chamber of the first author. Results: The calculation shows that the change in entropy of spinning black holes of the rest masses for stellar – mass black holes (M ~ 5 – 20 Mʘ) in X-ray binaries is 2.483x10 ⁶³ to 39.731x10 ⁶³ J/K and for the super massive Black holes (M ~ 10⁶ – 10^9.5 Mʘ) in active galactic nuclei is 9.932x10 ⁷³ to 28.432x10 ⁸⁰ J/K. The nature of the graph for XRBs is the same to the Hawking entropy with the event horizon and straight line for AGN which confirms the validity of equations E_BHs=K_BHs R’_{s_{and δS _bh = [wzór]δE .Conclusion: The change in energy and entropy of black holes are mainly dependent on the mass and independent of their event horizons.}}
Źródło:: International Letters of Chemistry, Physics and Astronomy; 2014, 13, 2; 95-103
2299-3843
Pojawia się w:: International Letters of Chemistry, Physics and Astronomy
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: First report of the earthworm Pontoscolex corethrurus (Müller, 1857) from Punjab, India
Autorzy:: Singh, S.
Singh, J.
Sharma, A.
Pal Vig, A.
Shakoor, A.
Powiązania:: https://bibliotekanauki.pl/articles/11913.pdf
Data publikacji:: 2018
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Źródło:: International Letters of Natural Sciences; 2018, 68
2300-9675
Pojawia się w:: International Letters of Natural Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Management of sugar industrial wastes through vermitechnology
Autorzy:: Bhat, S.A.
Singh, J.
Vig, A.P.
Powiązania:: https://bibliotekanauki.pl/articles/11795.pdf
Data publikacji:: 2016
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Opis:: The present paper discusses the role of earthworms in recycling of sugar industrial wastes. The wastes generated from sugar industry are pressmud, bagasse, bagasse fly ash, sugar cane trash, sugar beet mud, sugar beet pulp, molasses etc. These wastes when mixed with other organic substrates become ideal mixtures for growth of earthworms. These wastes if stored in open field’s causes contamination in the environment and may cause several diseases in public health. But the governments have been unable to tackle the menace of solid waste pollution due to dearth of appropriate technologies, finance and space. Therefore, environment friendly and cost effective technologies for nutrient recycling or remediation of wastes are being advocated as an alternative means for conserving and replenishing natural resources of the ecosystems. Vermicomposting is one such technology that synergises microbial degradation with earthworm’s activity for reducing, reusing and recycling waste materials in a shorter span of time. Earthworm technology can convert sugar industrial wastes into valuable fertilizing material. The final product (vermicompost) produced during the process of vermicomposting is nutrient rich organic fertilizer with plant available nutrients such as nitrogen, potassium, calcium and phosphorus. In the present study an attempt has been made to document the role of earthworms in reuse of sugar industry waste.
Źródło:: International Letters of Natural Sciences; 2016, 55
2300-9675
Pojawia się w:: International Letters of Natural Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Quinoa (Chenopodium quinoa Willd), functional superfood for today’s world: A Review
Autorzy:: Singh, Kunwar Vikash
Singh, Rashmi
Powiązania:: https://bibliotekanauki.pl/articles/1193046.pdf
Data publikacji:: 2016
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Quinoa
Pseudo cereal
Healthy food
Antioxidants
Glycemic index
Opis:: Quinoa (Chenopodium quinoa Willd) was known to the Incas as “the mother of all grains” and was believed to be sacred. It has been consumed in the form of food as well as medicine for the last 5000 years. Quinoa, a pseudo cereal, is recognized as one of the world’s healthiest foods due to its high nutritional value along with its potential to cater various health benefits. Being a good source of complete protein (contains all the nine essential amino acids), unsaturated fatty acids, minerals, vitamins, fibre and antioxidants, it is considered as “superfood”. Quinoa also helps to reduce the risk of various diseases like cardiovascular diseases, type-2 diabetes, some cancer, high blood pressure, obesity and is also a good option for people who are allergic to certain food groups. Its biodiversity and ability to sustain in adverse climatic conditions makes it an ideal crop to cultivate worldwide especially in under developing countries of Asia and Africa, where food production is threatened by global climatic changes. Hence, it is a demand of present world to increase the awareness regarding the various functional benefits of quinoa to combat one of the world’s major crises, that is, hunger and malnutrition.
Źródło:: World Scientific News; 2016, 58; 84-96
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Characterization and biosynthesis of silver nanoparticles using a fungus Aspergillus niger
Autorzy:: Ninganagouda, S.
Rathod, V.
Singh, D.
Powiązania:: https://bibliotekanauki.pl/articles/10827.pdf
Data publikacji:: 2014
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: biosynthesis
silver nanoparticle
fungi
Aspergillus niger
nanotechnology
microorganism
Opis:: An attractive possibility of green nanotechnology is to use microorganisms in the synthesis of silver nanoparticles. Recently, the biosynthesis especially from fungi has emerged as a novel method for the synthesis of silver nanoparticles. Nanoparticles are considered as building blocks of Nanotechnology. In the present work we have screened fungi for the extracellular production of silver nanoparticles. Aspergillus sps, Rhizopus sps, Fusarium sp. and Penicillium sp. were the isolates screened and subjected to silver nanoparticles production. Of the tested isolates, the fungus Aspergillus sp. showed maximum absorbance at 416 nm which is an indication of Silver nanoparticles production. Further characterization was made by TEM which revealed the shape to be spherical and size ranged between 20-55 nm, EDS showed the presence of elemental silver at 3kev, FTIR spectrum showed the different functional groups, XRD spectrum showed the crystalline nature of the particles and AFM revealed three dimensional structures of the nanoparticles. Of all kinds of nanoparticles silver nanoparticles show great promise in terms of biomedical applications as they exhibit different biomedical activities.
Źródło:: International Letters of Natural Sciences; 2014, 10
2300-9675
Pojawia się w:: International Letters of Natural Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Customer’s perception towards Change Management in Insurance sector – A Case Study of LIC of India
Autorzy:: Singh, Shriti
Powiązania:: https://bibliotekanauki.pl/articles/1192689.pdf
Data publikacji:: 2016
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Change
Change Management
Privatization
Insurance
Services
Customers etc.
Opis:: After a Decade of privatization in insurance sector in India, Customers of LIC believes that LIC is still in leading position in insurance sector. LIC win the trust of majority of the customers LIC of India doesn’t charge any hidden charges and due to government organization LIC succeeds to provide feeling of security to their customer. A descriptive study is conducted among the customers of the LIC of India from different branches in Bhopal. The objective of this research is to study the perception of customers about the change management (Privatization) and impact of the change management on the services provided by LIC of India to their customers. Chi Square test is applied in this paper to check the authenticity of data given by the respondents. The findings suggests that the change management can be implemented through Planning and Implementation, Decision making, transparency in policies, by creating opportunities for development etc
Źródło:: World Scientific News; 2016, 46; 126-144
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: A comprehensive review on a less explored medicinally important plant Justicia betonica L.
Autorzy:: Manokari, M.
Latha, R.
Priyadharshini, S.
Cokul, Raj M.
Beniwal, Puneet
Manjunatha, Reddy Y.
Rajput, Bharat Singh
Shekhawat, Mahipal S.
Powiązania:: https://bibliotekanauki.pl/articles/1066209.pdf
Data publikacji:: 2019
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Biological activities
Chemical constituents
Folk medicine
Justicia betonica
White shrimp
Opis:: Justicia betonica L., family Acanthaceae is a widely used traditional folk medicinal herb. It is a unique source of jusbetonin and the leaves yield bluish purple dye. Traditionally, the plant is used to cure constipation, diarrhea, malaria, orchitis, pain, snake bite, stomach ache, vomiting etc. The whole plant possess significant biologically active principles like steroids, triterpenoids, alkaloids, saponins, glycosides, carbohydrates, gum and mucilage, proteins, fixed oils and fat, phenolics and tannins. It is reported to exhibit antiviral, antioxidant, anti-inflammatory, analgesic and antimalarial activities. The intention of the study was to endow an overview of the ethnomedicinal properties, phytochemistry and related pharmacological applications of J. betonica, and to make an authenticated evidence base for further research on this important medicinal plant.
Źródło:: World Scientific News; 2019, 131; 110-122
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Lura - indiogenous approach to biodiversity conservation by temporary community confinement of Mithuns (Bos frontalis) during growing season
Autorzy:: Jini, D.
Bhagawati, K.
Singh, R.
Bhagawati, R.
Alone, R.A.
Ngachan, S.V.
Powiązania:: https://bibliotekanauki.pl/articles/11397.pdf
Data publikacji:: 2015
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Opis:: The extraordinary knowledge of indigenous people about their immediate environment and natural resource base can be a great asset for conservation of biodiversity. The current study aims to investigate an indigenous method of grazing management through temporary confinement of Mithun (Bos frontalis) of whole village community in a well selected area in the forest during the cropping and growing season. The whole system is called Lura and practiced by Galo tribes of Eastern Himalayan region of India. Every year Lura management committee is formed that selects a new site based on number of Mithuns, forage availability, time period and several other key criteria without affecting flora-fauna diversity and rare medicinal plants. The practice checks continuous, free, random and selective grazing by Mithuns. It prevent continuous disturbance of soil surface due to treading, during growing and rainy seasons that avoid soil erosion and compaction, and facilitate seedling germination and the invasion by plants. Change of site, provide resting period to the forages in the previous Lura site especially during growth stage that allow them to renew and regenerate appreciably within 1-2 months. It also saves resources and time for construction of fencing in each Jhum and other agricultural site of each farmer. The confinement offers easy monitoring, protection and regular health assessment of the livestock. Thus, it is a multifaceted indigenous practice that ensures grazing management, biodiversity conservation, protection of standing agricultural crops and animal health management
Źródło:: International Letters of Natural Sciences; 2015, 44
2300-9675
Pojawia się w:: International Letters of Natural Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Oncology research output and its citation analysis at continental level: a study (2003-2012)
Autorzy:: Pandita, R.
Singh, S.
Powiązania:: https://bibliotekanauki.pl/articles/10898.pdf
Data publikacji:: 2014
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: oncological research
citation analysis
continental level
2003-2012 period
Africa
Asia
Europe
North America
South America
medical science
tumour
human disease
treatment
Opis:: The present study examines the research output and citation analysis in the field of Oncology, a branch of medical science which deals with the study and treatment of tumours, what we commonly know as cancer. Cancer as a disease is not confined to a particular region or a country, but is a global phenomenon and is still beyond the complete understanding and control of medicos. Research in the field of biomedical sciences in general and oncology is particular is undertaken at global level with almost each country contributing its bit in understating and control of disease. The study makes an empirical assessment of the research output and growth in the field of oncology at continental level for the period 2003-2012 and evaluates the aspects like research growth, citation analysis, h-Index etc. Data for the present study has been retrieved from the SCImago Journal and Country Ranking, which is totally based on the SCOPUS data source. Findings: - A total of 310593 research papers were published across six continents of the world during the period 2003-2012. Europe emerged the largest continent with its publication share of (124598, 40.11 %). Europe is followed by North America with its share percentage of (102897, 33.12 %) and Asia with (70555, 22.71 %). The contribution of Oceania, South America & Africa to the world oncology research is not that encouraging, as such there is greater need to promote oncology research in these continents. African contribution to global oncology research during the period remained (2215, 0.71 %), South American (3009, 0.96 %) and Oceania contributed (7319, 2.35 %). Oncology research publication on average during the period of study grew annually at 8.15 %, while as at continental level Africa registered highest annual publication growth of 19.08 %. North America and Europe are the only continents which recorded publication's growth below the average global growth.
Źródło:: International Letters of Natural Sciences; 2014, 12, 2
2300-9675
Pojawia się w:: International Letters of Natural Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Identifying overlapping phylogenetic and geographic roots of HIV - 1 evolution through computational analyses
Autorzy:: Singh, P.K.
Banik, R.
Chakraborty, H.J.
Das, S.G.
Ganguli, S.
Datta, A.
Powiązania:: https://bibliotekanauki.pl/articles/11359.pdf
Data publikacji:: 2014
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: phylogenetic root
geographic root
evolution
computational analysis
HIV-1
genome
recombinant strain
AIDS
human disease
acquired immunodeficiency syndrome zob.AIDS
acquired immune deficiency syndrome zob.AIDS
Opis:: HIV-1 or Human Immuno Deficiency Virus-1 is the main causative agent of Acquired Immuno Deficiency Syndrome (AIDS). Human host infected with HIV - 1 extensively harbours many viral variants but very little is known about the difference in pattern[17] of evolution of phylogenetic lineages of HIV-1 non recombinant, normal inter subtype recombinant and main two specific recombinant forms of HIV-1 i.e., Circulating Recombinant Forms (CRFs) and Unique Recombinant Forms (URFs). This study is mainly concerned with study of the difference in evolutionary lineages of non-recombinant and recombinant sequences of HIV-1 genome sequences and identification of geographically rich areas which has reported high degree of HIV-1 occurrence and variety. Total 1550 HIV-1 genome sequences were obtained from HIV Los Alamos Database. The sequences were aligned using MAFFT (Multiple Alignment using Fast Fourier Transform) web server tool. Alignment was carried out using 10 different set of alignment parameter values. After alignment the aligned file was used for constructing N-J phylogenetic tree using Clustal X2 tool. Phylogenetic analysis was performed keeping in mind the category to which the sequence belongs. Upon analysis it was observed that the clade containing the probable ancestor belongs remained constant in all cases of different alignment values. Non recombinant isolates, inter subtype recombinants, CRFs, URFs all followed different patterns of evolution. Non recombinant sequences were found geographically specific and subtype specific to some extent whereas, normal recombinants were subtype specific and less geographically specific. CRFs showed variation among the pattern of their evolution. At some instances the sequences occurred as sister taxa of non-recombinant or normal inter subtype recombinant sequences, while at some instances as sister taxa of other CRFs where they were geographically specific. Three CRFs existed as completely diverged sequences. URFs were four in number; two of them were Indian isolates of while other two were Japanese isolates. URFs were found to be totally geographically specific. Geography wise high rate of variation was observed in India and Japan as these two countries had sequences belonging to all of the above categories. Cameroon and South Africa have very large number isolates and a considerable amount of genetic variation among isolates but they lack URFs.
Źródło:: International Letters of Natural Sciences; 2014, 02
2300-9675
Pojawia się w:: International Letters of Natural Sciences
Dostawca treści:: Biblioteka Nauki

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