Kailasnath, M; Nampoori, V P N; Radhakrishnan, P; Nishant, Kumar; Bikas, Ranjan(PHOTONICS-2008: International Conference on Fiber Optics and Photonics IIT Delhi, India, December , 2008)
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Abstract:
The direction dependant wavelength selective transmission mechanism in poly (methyl
methacrylate)(PMMA) rods doped with C 540 dye and C 540:Rh.B dye mixture as a combination has been
investigated. When a polished slice of pure C 540 doped polymer rod was used side by side with a C540:Rh B
doped rod with acceptor concentration [A] = 7x10-4 m/l , we could notice more than 100% change in the
transmitted intensity along opposite directions at the C 540, Rh B emission and the excitation wavelengths . A
blue high bright LED emitting at a peak wavelength 465nm was used as the excitation source.
Thresiamma,T K; Dr.Wazir, Hasan Abdi(Cochin University of Science and Technology, 1985)
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Abstract:
The object of this thesis is to formulate a basic commutative difference operator theory for
functions defined on a basic sequence, and a bibasic commutative difference operator theory for functions defined on a bibasic sequence of points, which can be applied to the solution of basic and bibasic difference equations. in this thesis a brief survey of the work done in this field in the classical case, as well as a review of the development of q~difference equations, q—analytic function theory, bibasic analytic function theory, bianalytic function theory, discrete pseudoanalytic function theory and finally a summary of results of this thesis
Description:
Department of Mathematics and
Statistics, Cochin University of Science & Technology
Deepthi, C P; Dr.Krishnamoorthy,A(Cochin University of Science and Technology, May 3, 2013)
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Abstract:
In everyday life different flows of customers to avail some service facility or other at some service station are experienced. In some of these situations, congestion of items arriving for service, because an item cannot be serviced Immediately on arrival, is unavoidable. A queuing system can be described as customers arriving for service, waiting for service if it is not immediate, and if having waited for service, leaving the system after being served. Examples Include shoppers waiting in front of checkout stands in a supermarket, Programs waiting to be processed by a digital computer, ships in the harbor Waiting to be unloaded, persons waiting at railway booking office etc. A queuing system is specified completely by the following characteristics: input or arrival pattern, service pattern, number of service channels, System capacity, queue discipline and number of service stages. The ultimate objective of solving queuing models is to determine the characteristics that measure the performance of the system
Description:
Department
of Mathematics, Cochin University of Science and Technology
Tessamma, Thomas; Tina, George P(BioMed Central Ltd, January 18, 2010)
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Abstract:
This paper compares the most common digital signal processing methods of exon
prediction in eukaryotes, and also proposes a technique for noise suppression in exon prediction.
The specimen used here which has relevance in medical research, has been taken from the public
genomic database - GenBank.Here exon prediction has been done using the digital signal processing methods viz.
binary method, EIIP (electron-ion interaction psuedopotential) method and filter methods. Under
filter method two filter designs, and two approaches using these two designs have been tried. The
discrete wavelet transform has been used for de-noising of the exon plots.Results of exon prediction based on the methods mentioned above, which give values
closest to the ones found in the NCBI database are given here. The exon plot de-noised using
discrete wavelet transform is also given.Alterations to the proven methods as done by the authors, improves performance
of exon prediction algorithms. Also it has been proven that the discrete wavelet transform is an
effective tool for de-noising which can be used with exon prediction algorithms
Chandrasekharan,N S; Dr.Leelakrishnan, P(Cochin University of Science And Technology, December , 1982)
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Abstract:
This is a study in labour law.. Dismissal of workmen in private lndustrial sector is the area of this study. Confined within the framework of the Industrial Disputes act 1947, the study is an analytical assessment of the decisions of the supreme Court of India. on dismissal in industrial
employment. Few attempts were made in the past to analyse on identical lines the problems in this area. Hence what is| written in this thesis is ones own. Dismissal carries a stigma. the dismissed employee may find it difficult to get alternative employment especially in a land of severe unemployment. The need for law with built in safeguards against arbitrary dismissal cannot be overemphasized. From this perspective the study examines to what extent the industrial disputes act 1947 provides protection and how far the protection is adequate.
Description:
School of legal studies, Cochin University of Science And Technology
Sujatha, C H; Naduvilaveettil, Sukumaran Kalesh; Muraleedharan, Nair S(The Oceanographic Society of Japan, September 1, 2000)
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Abstract:
Information on the distribution of dissolved Folin phenol active substances (FPAS)
such as tannin and lignin in the seawater along the west coast of India is provided.
Notable amounts of FPAS (surface concentrations: 80 f.1gll to 147 f.1gll and bottom
concentrations: 80 f.1gll to 116 f.1gll) were detected in the seawater along the coast. The
distribution pattern brings about a general depth-wise decrease. A seaward decrease
was observed in the southern stations whereas reverse was the case in northern stations.
A significant negative correlation was observed between FPAS concentration
and dissolved oxygen in sub-surface samples. The appreciable amounts of FPAS detected
in the coastal waters indicate the presence of organic matter principally originating
from terrestrial (upland and coastal marsh) ecosystems in the marine environment.
In this context, they may be used as tracers to determine the fate of coastalborn
dissolved organic matter in the ocean and to determine directly the relationship
between allochthonous and autochthonous organic matter
Description:
Journal of Oceanography, Vol. 57, pp. 29 to 36, 2001
Hatha, A A M; George, M; Anjumol, A; George, G(Academic Journals, March 16, 2012)
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Abstract:
Emergence of drug resistance among pathogenic bacteria to currently available antibiotics has intensified the search for novel bioactive compounds from unexplored habitats. In the present study actinomycetes were isolated from two relatively unexplored and widely differing habitats such as mountain and wetlands and their ability to produce antibacterial substances were analyzed. Pure cultures of actinomycetes were identified by morphological and biochemical tests. Various genera of actinomycetes encountered included Nocardia, Pseudonocardia, Streptomyces, Nocardiopsis, Streptosporangium, Micromonospora, Rhodococcus, Actinosynnema, Nocardiodes, Kitasatosporia, Gordona, Intrasporangium and Streptoalloteichus. The frequency of occurrence of each genus was found to vary with sample. About 47% of wetland isolates and 33% of mountain isolates were identified as various species of Nocardia. The isolated strains differed among themselves in their ability to decompose proteins and amino acids and also in enzyme production potential. Antibiotic activities of these actinomycetes were evaluated against 12 test pathogenic bacteria by well diffusion method using agar wells in glycerol-yeast extract agar. About 95% of actinomycete isolates from wetland ecosystem and 75% of highland isolates suppressed in different degrees the growth of test pathogens. Relatively high antibacterial activity among these isolates underlined their potential as a source of novel antibiotics.
Description:
African Journal of Microbiology Research Vol. 6(10), pp. 2265-2271, 16 March, 2012
Hashim, M; Dr.Pillai,N G K(Cochin University of Science and Technology, May , 2012)
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Abstract:
This thesis Entitled distribution ,diversity and biology of deep-sea fishes the indian Eez.Fishing rights and responsibilities it entails in the deep-sea sector has been a vexed issue since the mid-nineties and various stakeholders have different opinion on the modalities of harnessing the marine fisheries wealth, especially from the oceanic and deeper waters. The exploitation and utilization of these esources requires technology development and upgradation in harvest and post-harvest areas; besides shore infrastructure for berthing, handling, storing and processing facilities. At present, although deep-sea fishes don’t have any ready market in our country it can be converted into value added products.
Many problems have so far confronted the deep-sea fishing sector not allowing it to reach its full potential. Hence, there should be a sound deep-sea fishing policy revolving round the upgradation of the capabilities of small scale fishermen, who have the inherent skills but do not have adequate support to develop themselves and to acquire vessels having the capability to operate in farther and deeper waters. Prospects for the commercial exploitation and utilization of deep-sea fishes were analyzed using SWOL analysis.
Nifty, John; Dr. Mohamed Hatha, A.A(Cochin University of Science & Technology, April , 2014)
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Abstract:
The thesis deals with the prevalence and distribution of motile aeromonads in selected ornamental fishes. The presence of motile aeromonads in ornamental fishes and associated carriage water is well documented. Though aeromonads are a part of autochthonous flora of natural waters, disease outbreak occurs as a result of
environmental stress on the cultured species and virulence of the pathogens.
While ornamental aquaculture in many parts of the world is highly organized and
practiced scientifically, it is highly unorganized in India. The culture ponds/tanks
are often maintained in very poor manner and the fishes are subjected to high
degree of stress during transportation from the production facility to retail
vendors. The situation is no better at retail outlets, where fishes are maintained in
crowded condition without proper aeration or food. All these could result in high
prevalence of diseases caused by motile aeromonads. No systematic study has been carried out to understand the prevalence of motile aeromonads in ornamental fishes and carriage water . It also gives an account of the production of extracellular virulence factors and the antibiogram of the different species of motile aeromonads isolated. The growth characteristics and virulence potential of a representative strain of Aeromonas hydrophila is also studied. The nucleotide sequencing of the strain was carried out and sequences deposited in Genbank. Survival and immune response of Cyprinus carpio under different stress conditions and on probiotic treatment with Bacillus NL110, when challenged with A. hydrophila is also dealt within this thesis.
During last decades there has been a continuous growth of aquaculture industries all over the world and taking into
consideration the spurt in freshwater ornamental fish aquaculture and trade in Kerala, the present study was aimed to assess the
prevalence of various motile Aeromonas spp. in fresh water ornamental fishes and associated carriage water. The extracellular
virulence factors and the antibiogram of the isolates were also elucidated. Various species of motile aeromonads such as Aeromonas
caviae, A. hydrophila, A. jandaei, A. schubertii, A. sobria, A. trota and A. veronii were detected. Aeromonas sobria predominated
both fish and water samples. Extracellular enzymes and toxins produced by motile aeromonds are important elements of bacterial
virulence. The production of extracellular virulence factors - proteases, lipase, DNase and haemolysin by the isolates were studied.
All the isolates from both fish and water samples produced gelatinase and nuclease but the ability to produce lipase, caseinase and
haemolysins was found to vary among isolates from different sources. Among the 15 antibiotics to which the isolates were tested, all
the isolates were found to be sensitive to chloramphenicol, ciprofloxacin and gentamicin and resistant to amoxycillin. Local aquarists
maintain the fish in crowded stressful conditions, which could trigger infections by the obligate/ opportunistic pathogenic members
among motile aeromonads
Description:
International Journal of Aquaculture, 2013, Vol.3, No.17, 92-100
Sheeba,P; Sarala Devi,K(National Institute of Oceanography, 2000)
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Abstract:
The study revealed stress and localized impact of industrial waste on the biota, predominance of stress tolerant species and low diversity in the vicinity of the effluent discharge point. These studies on impact of environmental parameters on the distribution of macrobenthos thus indicate the quantum of endurance warranted by the infauna to tide over the wide range of environmental stress. Low diversity and lower number of benthic fauna near discharge site can be attributed to the stress caused by cumulative toxic effects of effluents. The results of the physico-chemical parameters highlight the effects of pollution. The results of the study indicated the changes due to the large-scale movements of the estuarine water under the influence of tide, monsoon and land runoff coupled with its heterogenous nature owing to the effluent discharge from the industries
Luckose, C K; Dr.Chandrasekharan Pillai, N(Cochin University of Science and Technology, September , 1992)
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Abstract:
When we consider Kerala and Karnataka States according
to their levels of decentralisation. Kerala is at the beginning
of the scale of decentralisation whereas Kamataka has moved far
ahead along this scale. Therefore I in order to conduct a comparative
study of the SUbject under analysis t Kamataka has been selected
owing to the fact that it is in an advanced stage in the experience
of district planning compared to Kerala , Karnataka could successfully
implement district planning and it is me of the pioneering states
in this regard. But Kerala has not gained much experience in
the field of decentralised district planning till now. Furthermore
Kerala and Kamataka states are selected for the present study
due to operational reasons I besides the author I s familiarity with
the socia-economic conditions of these states. Thus. an analysis
of the district planning experience of Kamataka will provide
constructive and valuable information. which will be of great
importance to Kerala State, which is now aspiring to introduce
ful.I-f'Iedge district planning by constituting elected District Coancils
in every district of Kerala. Moreover. the findings and policy
implications of the present study will be of immense help to
planners, politicians. administrators, academicians and people
at large.
Description:
School of Management Studies, Cochin University of Science & Technology