573 research outputs found
Appraisal on the marine fishing craft and gear of the Indian coast
The use of fishing methods varying from simple traps to large trawlers
and from hand lines to sophisticated purse seines is a typical feature
of marine fisheries in India. The regional and seasonal variation is so
vast that the developmental agencies and administrative machinery are
often handicapped in deciding priorities on modernizing the traditional
tools. A document as attempted here, would form a piece of vital information
for the R&D agencies. The traditional gear operated in different regions
of the Indian coast are classified based on the mode of operation and an
exhaustive listing along with local names is attempted. Besides,
contributions to the marine fish production separately by traditional and
modern craft are brie flu noted
Catch trend of commercial trawl fisheries at Krishnapatnam Port. Nellore district, Andhra Pradesh
Of the five fisheries harbours in the Andhra
Pradesh, Visakhapatnam Fisheries Harbour has
been classified as major and the harbours at
Kakinada (East Godavari district), Bhavanapadu
{Srlkakulam district), Nizampatnam (Guntur
district) and Krishnapatnam Port (Nellore district)
as minor harbours
Appraisal of the Marine Fisheries of West Bengal
The state of West Bengal is situated between the latitudes 21.5CN
and 24.5°N and the longitudes 86CE and 89°E. Its location is in the northern
part of Bay of Bengal; between the state of Orissa in the south and
Bangladesh in the east.
West Bengal, with an area of 87,853 sq. km accounts for 2.6% of
the geographical area of India. For administrative purposes, the state is
divided into 3 Divisions : Burdwam Division, Presidency Division and
Jalpaiguri Division. Within each division the districts form administrative
units. There are 16 districts of which two are coastal. The coastal districts
are Midnapore and 24 Parganas. These together have a coastline of 65.0 km,
forming 1.0% of the coastline of India
Photometric Supernova Cosmology with BEAMS and SDSS-II
Supernova cosmology without spectroscopic confirmation is an exciting new
frontier which we address here with the Bayesian Estimation Applied to Multiple
Species (BEAMS) algorithm and the full three years of data from the Sloan
Digital Sky Survey II Supernova Survey (SDSS-II SN). BEAMS is a Bayesian
framework for using data from multiple species in statistical inference when
one has the probability that each data point belongs to a given species,
corresponding in this context to different types of supernovae with their
probabilities derived from their multi-band lightcurves. We run the BEAMS
algorithm on both Gaussian and more realistic SNANA simulations with of order
10^4 supernovae, testing the algorithm against various pitfalls one might
expect in the new and somewhat uncharted territory of photometric supernova
cosmology. We compare the performance of BEAMS to that of both mock
spectroscopic surveys and photometric samples which have been cut using typical
selection criteria. The latter typically are either biased due to contamination
or have significantly larger contours in the cosmological parameters due to
small data-sets. We then apply BEAMS to the 792 SDSS-II photometric supernovae
with host spectroscopic redshifts. In this case, BEAMS reduces the area of the
(\Omega_m,\Omega_\Lambda) contours by a factor of three relative to the case
where only spectroscopically confirmed data are used (297 supernovae). In the
case of flatness, the constraints obtained on the matter density applying BEAMS
to the photometric SDSS-II data are \Omega_m(BEAMS)=0.194\pm0.07. This
illustrates the potential power of BEAMS for future large photometric supernova
surveys such as LSST.Comment: 25 pages, 15 figures, submitted to Ap
Magnetic and transport properties of Mo substituted La0.67Ba0.33Mn1-xMoxO3 perovskite system
The effect of doping Mo for Mn on the magnetic and transport properties of
the colossal magnetoresistance material, La0.67Ba0.33MnO3, has been studied.
Compounds of the series La0.67Ba0.33Mn1-xMoxO3 (x=0.0 to 0.1) have been
prepared and found to crystallize in the orthorhombic structure (space group
Pbnm). Energy Dispersive X-ray Analysis (EDAX) measurements confirm the
stoichiometry of all the samples. Magnetotransport and magnetization
measurements reveal that the metal-insulator transition temperature (Tp)
decreases from 330K for x=0 to 255K for x=0.1. The change in Tp on Mo
substitution is relatively much smaller than the corresponding change observed
on substitution by other transition elements, such as Ti, Fe, Co, Ni, etc.
Further, the ferromagnetic transition temperature (TC) is nearly unchanged by
Mo substitution. This is in striking contrast to the large decrease in TC
observed with substitution of above-mentioned 3d elements. These unusual
magnetic and transport properties of La0.67Ba0.33Mn1-xMoxO3 may be either due
to the formation of magnetic pair between Mn and Mo or due to strong
Mo(4d)-O(2p) overlap, which in turn, may affect the Mn-Mn interaction via the
oxygen atomsComment: 25 pages, 5 figure
Astrophysical S_{17}(0) factor from a measurement of d(7Be,8B)n reaction at E_{c.m.} = 4.5 MeV
Angular distribution measurements of H(Be,Be)H and
H(Be,B) reactions at ~4.5 MeV were performed to
extract the astrophysical factor using the asymptotic normalization
coefficient (ANC) method. For this purpose a pure, low emittance Be beam
was separated from the primary Li beam by a recoil mass spectrometer
operated in a novel mode. A beam stopper at 0 allowed the use of a
higher Be beam intensity. Measurement of the elastic scattering in the
entrance channel using kinematic coincidence, facilitated the determination of
the optical model parameters needed for the analysis of the transfer data. The
present measurement significantly reduces errors in the extracted
Be(p,) cross section using the ANC method. We get
~(0)~=~20.7~~2.4 eV~b.Comment: 15 pages including 3 eps figures, one figure removed and discussions
updated. Version to appear in Physical Review
Appraisal of the Marine Fisheries in Orissa
The State Orissa is situated between latitudes 17.75°N and 22.5°N
and longitudes 81.5°E and 87.6°E, bordered by the Bay of Bengal in the
east, West Bengal in the north-east, Bihar in the north, Madhyapradesh in
the west and north-west, and Andhra Pradesh in the south.
Orissa, with an area of 1 55,842 sq. km. accounts for 4.7% of the
geographical area of India. The state has 13 districts, of which four are
coastal. The coastal districts are Balasore, Cuttack, Puri and Ganjam. These
together have a coastline of 480 km. forming 8% of the coastline of India
Rational design and characterization of bioplastics from Hermetia illucens prepupae proteins
In this study proteins extracted from prepupae of Hermetia illucens, also known as black soldier fly,are investigated as promising base for a new type of bioplastics for agricultural purposes. Designof experiments techniques are employed to perform a rational study on the effects of differentcombination of glycerol as plasticizer, citric acid as cross-linking agent and distilled water as solventon the capability of proteins to form a free-standing film through casting technique, keeping asfixed the quantity of proteins. Glycerol shows interesting properties as plasticizer contributing tothe formation of homogenous and free-standing film. Moreover, mechanical and thermalcharacterizations are performed to estimate the effect of increasing amounts of proteins on thefinal properties and thickness of the specimens. Proteins derived from H. illucens can be success-fully employed as base for bioplastics to be employed for agricultural purposes
Citostatsko i protuupalno djelovanje polisaharida biljke Ganoderma lucidum
In this study, polysaccharides were isolated from Ganoderma lucidum (Polyporaceae) and their antitumor and anti-inflammatory activities were investigated using in vivo models. Potential antitumor activity was shown by G. lucidum polysaccharides (GLP) against solid tumor induced by Ehrlich’s ascites carcinoma cells. GLP at 100 mg kg–1 body mass showed 80.8 and 77.6 % reduction in tumour volume and tumour mass, respectively, when administered 24 h after tumour implantation. Again, GLP at the same dose but when administered prior to tumour inoculation, showed 79.5 and 81.2 % inhibition of tumour volume and tumour mass, respectively. GLP showed significant dose-dependent activity in carrageenean-induced (acute) and formalin-induced (chronic) inflammation assays. At 100 mg kg–1, GLP exhibited 57.6 and 58.2 % inhibition in carrageenean-induced and formalin-induced assays, respectively.U radu je ispitano in vivo citostatsko i protuupalno djelovanje polisaharida (GLP) izoliranih iz biljke Ganoderma lucidum (Polyporaceae). Ispitivani polisaharidi pokazali su potencijalno antitumorsko djelovanje na Ehrlichov ascitesni tumor. GLP su u dozi od 100 mg kg1 tjelesne mase inhibirali volumen tumora za 80,8, a njegovu masu za 77,6 %, kada su primijenjeni 24 h nakon implantacije tumora. Ako se GLP daju u istoj dozi prije inokulacije tumora, inhibiraju volumen tumora za 79,5, a njegovu masu za 81,2 %. GLP pokazuju značajno, o dozi ovisno, protuupalno djelovanje u karagenan testu (akutna upala) i formalin testu (kronična upala). U dozi od 100 mg kg1, GLP inhibiraju upalne procese za 57,6 odnosno 58,2 % u testu s karagenanom, odnosno formalinom
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