Paulose,C S; Kanungo, M S(Department of Biotecnology, April 21, 1982)
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Abstract:
The binding of (-)[ 3H ]dihydroalprenolol , an antagonist of norepinephrine , to $-adrenergic receptors
in different regions of the brain of male and female rats of various ages was measured . The binding to the
synaptosomal fraction of corpus striatum , hypothalamus, cerebral cortex, cerebellum and the brainstems
shows a significant decrease in the binding in old rats of both sexes . Only in the female corpus striatal
region, the binding in the adult and the old is the same . In the case of females, the highest binding is seen
in the young. In the male, an increase in binding occurs up to adulthood , after which it declines,
suggesting a definite sex-related difference in the Q-adrenergic receptor.
Lekha,P V; Dr.Ram Mohan,H S(Cochin University of Science And Technology, May , 1992)
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Abstract:
Usually, under rainfed conditions the growing period exists
in the humid months. Hence, for agricultural planning knowledge
about the variabilities of the duration of the humid seasons are
very much needed. The crucial problem affecting agriculture is
the persistency in receiving a specific amount of rainfall during a short period. Agricultural operations and decision making are highly dependent on the probability of receiving given amounts of rainfall; such periods should match the water requirements of different phenological phases of the crops. While prolonged dry periods during sensitive phases are detrimental to their growth and lower the yields, excess of rainfall causes soil erosion and loss of soil nutrients. These factors point to the importance of evaluation of wet and dry spells. In this study the weekly rainfall data have been analysed to estimate the probability of wet and dry periods at all selected stations of each agroclimatic zone and the crop growth potentials of the growing seasons have been analysed. The thesis consists of six Chapters.
Description:
School of marine sciences, Cochin University of Science And Technology
Botha, E C; Odendaal, J W; Geggus, K M(Microwave and Optical Technology Letters, February 20, 1998)
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Abstract:
Compact-range radar backscatter measurements are taken
of aircraft scale models. In addition, computer software is used to predict
the RCS of the aircraft. Synthetic down-range profiles formed from the
two sources of backscatter data are compared and visualized in an
innovative manner. Similar discrimination rates between the two aircraft
are obtained on data from both source
Valsamma, Joseph; Dr.Ammini, Joseph(Cochin University of Science And Technology, April , 1998)
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Abstract:
The present research is based on two broader aspects of pollution assessment ,and
treatability of petroleum and petrochemical effluents by algae. The objectives of the investigation are to study the algal ecology and trophic status of an oil refinery effluent holding pond , isolate and identify pure cultures of algae, study the role of algae in petroleum and petrochemical effluent treatment, develop strains of algae tolerant to toxic effluents, study the biotreatment potential of the tolerant algal strains developed The thesis comprises of six chapters. The first chapter gives the significance and objectives of the present study. The second chapter describes the methodology, and results of studies on the algal ecology, and trophic status of the effluent holding pond of Cochin Refineries Ltd., Ambalamugal, Kochi. The third chapter deals with the isolation, and development of pure cultures of algae, the algal bioassay of the refinery effluent, and the analyses of Chitrapuzha river water. The analysis, and assessment of the algal growth potential of the petrochemical effluent of Hindustan Organic Chemicals Ltd., Ambalamugal, Kochi.
are summarised in the fourth chapter The fifth chapter deals with the algal growth potential in phenol and phenolic effluent, and subsequent absorption of phenol and total dissolved solids. The summary and conclusion of the present study are given in the sixth chapter.
Description:
Department of environmental studies, Cochin University of Science And Technology
Anit, Thomas M; Dr.Saramma, A V(Cochin University of Science And Technology, April , 2014)
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Abstract:
It is essential to understand how the distribution and composition of
microalgae as well as dynamics of HABs in economically important shelf seas
relate to the particular physico-chemical and biological properties of the water
column in which they live. In view of the importance of southwest coast of
India, which is considered as one of the most biologically productive areas in
the world, regular monitoring of distribution and abundance of microalgae
is important. The present work is concentrated on the estuarine and coastal
open sea stations along the southwest coast of India. In order to get further
insights into the abiotic factors governing bloom dynamics, the physicochemical
parameters that regulated three particular bloom events during
this period were studied. Bearing in mind the role of bacterial fauna
associated with algal blooms as a biological factor in regulating its
dynamics, isolation of bacteria associated with the algal blooms, their
identification, enumeration, and ability to produce extracellular enzymes
have been duly incorporated into this study
Description:
Department of Marine Biology, Microbiology and Biochemistry
School of Marine Sciences
Cochin University of Science and Technology
Manju, C; Dr.Pramod, K V(Cochin University of Science and Technology, April 19, 2010)
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Abstract:
Communication is the process of transmitting data across channel.
Whenever data is transmitted across a channel, errors are likely to occur.
Coding theory is a stream of science that deals with finding efficient ways to
encode and decode data, so that any likely errors can be detected and corrected.
There are many methods to achieve coding and decoding. One among them is
Algebraic Geometric Codes that can be constructed from curves.
Cryptography is the science ol‘ security of transmitting messages from
a sender to a receiver. The objective is to encrypt message in such a way that
an eavesdropper would not be able to read it. A eryptosystem is a set of
algorithms for encrypting and decrypting for the purpose of the process of
encryption and decryption. Public key eryptosystem such as RSA and DSS are
traditionally being prel‘en‘ec| for the purpose of secure communication through
the channel. llowever Elliptic Curve eryptosystem have become a viable
altemative since they provide greater security and also because of their usage
of key of smaller length compared to other existing crypto systems. Elliptic
curve cryptography is based on group of points on an elliptic curve over a finite
field.
This thesis deals with Algebraic Geometric codes and their relation to
Cryptography using elliptic curves. Here Goppa codes are used and the curves
used are elliptic curve over a finite field. We are relating Algebraic Geometric
code to Cryptography by developing a cryptographic algorithm, which includes
the process of encryption and decryption of messages. We are making use of
fundamental properties of Elliptic curve cryptography for generating the
algorithm and is used here to relate both.
Description:
Department ofComputer Application, Cochin University of Science and Technology
This paper investigates certain methods of training adopted in the
Statistical Machine Translator (SMT) from English to Malayalam. In English
Malayalam SMT, the word to word translation is determined by training the
parallel corpus. Our primary goal is to improve the alignment model by
reducing the number of possible alignments of all sentence pairs present in the
bilingual corpus. Incorporating morphological information into the parallel
corpus with the help of the parts of speech tagger has brought around better
training results with improved accuracy
Bright Singh, I S; Rosamma, Philip; Anas, A; Somnath Pai, S; Douglas, W Lowman; David, L Williams; Stewart, Millen(Blackwell Publishing, July 1, 2009)
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Abstract:
E¡ect of an extraction method on the structure of
glucan and its immunostimulatory response in Fenneropenaeus
indicus was investigated. Here we extracted
alkali insoluble glucan (AIG) and alkali
soluble glucan (ASG) from a ¢lamentous fungi Acremonium
diospyri following alkali^acid hydrolysis and
the sodium hypochlorite oxidation and dimethyl
sulphoxide extraction method respectively. Structural
analysis showed that 85% of glucan in AIG was a
(1 !3)-b-D-glucan and it increased the prophenoloxidase
and reactive oxygen intermediate activity
when administered to F. indicus. On the other hand,
ASG, which contained 93% (1 !3)-a-glucan, did
not induce signi¢cant immune response in shrimp.
Here we report that the di¡erence in immunostimulatory
potential between AIG and ASG is due to the
di¡erence in the percentage of (1 !3)-b-D-glucans
present in each preparation, which varies with the
method of extraction employed. Also our observations
suggest that glucan can be used as a potential
immunostimulant to shrimp, provided it contains
(1 !3)-b-D-glucan as the major fraction.
Lailaja, V P; Dr.Chandrasekaran,M(Cochin University of Science And Technology, July 27, 2007)
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Abstract:
Considering the potential of marine environment present study was
designed for the screening and isolation of a potential salt tolerant.
alkaline and thennotolerant lipase producing bacteria from the costal
belts of South India and consequent development of ideal bioprocess for
industrial production, purification characterisation and evaluation of the
potential of the lipase enzyme for various industrial applications 1. Screening and isolation of a potential lipase producing bacteria.
2. Optimization of various physicochemical factors in Submerged fennentation
for the production of alkaline lipase
3. Purification ofthe lipase enzyme
4. Characterisation of the enzyme
5. Evaluation of the enzyme for various industrial applications
Description:
Microbial Technology Laboratory
Department of Biotechnology
Cochin University of Science and Technology
Bright Singh, I S; Saramma, A V; Jayesh, P; Manjusha, K; Prem, Gopinath; Priyaja, P; Divya, Jose; Sreelakshmi, B(Springer, June 21, 2012)
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Abstract:
Vibrio sp. V26 isolated from mangrove
sediment showed 98 % similarity to 16S rRNA gene
of Vibrio cholerae, V. mimicus, V. albensis and uncultured
clones of Vibrio. Phenotypically also it resembled
both V. cholerae and V. mimicus.Serogrouping, virulence
associated gene profiling, hydrophobicity, and adherence
pattern clearly pointed towards the non—toxigenic
nature of Vibrio sp. V26. Purification and characterization
of the enzyme revealed that it was moderately
thermoactive, nonhemagglutinating alkaline metalloprotease
with a molecular mass of 32 kDa. The application
of alkaline protease from Vibrio sp. V26 (APV26) in sub
culturing cell lines (HEp-2, HeLa and RTG-2) and
dissociation of animal tissue (chick embryo) for primary
cell culture were investigated. The time required for
dissociation of cells as well as the viable cell yield
obtained by while administeringAPV26 and trypsin were
compared. Investigations revealed that the alkaline
protease of Vibrio sp. V26 has the potential to be used
in animal cell culture for subculturing cell lines and
dissociation of animal tissue for the development of
primary cell cultures, which has not been reported earlier
among metalloproteases of Vibrios.
Description:
Cytotechnology (2013) 65:199–212
DOI 10.1007/s10616-012-9472-z
Manjusha, K; Dr.Saramma, A V(Cochin University of Science and Technology, July , 2011)
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Abstract:
The thesis presents a detailed account of the alkaline protease produced by Vibrio sp.(V26) a mangrove isolate,and the application of this enzyme in different fields.The protease producer strain was identified on the basis of biochemical characteristice,putative virulence traits and 16S rRNA gene sequencing.The purification and characterization of the protease has been carried out. Along with this, an attempt has been made to identifiy the protease gene. The physical parameters as well as the media components influencing protease production were optimized using Response Surfce Methodology(RSM).The scale up of the application of the protease from Vibrio sp.(V26) in the dissociation of cells in animal cell culture,in the recovery of silver from used X-ray films as well as an ingredient in commercial detergents were investigated.
Description:
Dept.of Marine Biology,Microbiology and Biochemistry,Cochin University of Science and Technology
Sreeja, Chellappan; Chandrasekaran, M(Cochin University of Science and Technology, October , 2005)
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Abstract:
The thesis entitled “Alkaline Protease Production by Marine Fungus Engyodontium BTMFS 10”.Proteases are the single class of enzymes, which occupy a pivotal position with respect to their application in both physiological and commercial filed. Protease in the industrial market is expected to increase further in the coming year. The current trend is to use microbial enzymes since they provide a greater diversity of catalytic activities and can be produced more economically. Main objective of theses studies are the optimization of various physicochemical factors in the solid state fermentation for the production of alkaline protease enzyme, characterization of the enzyme, evaluation of the enzyme for various industrial application. The result obtained the during the course of theses study indicate the scope for the utilization of this study Marine Fungus E. Album for extra cellular protease production employing solid state fermentation
Meera, Venugopal; Dr.Saramma, A V(Cochin University Of Science And Technology, August 9, 2004)
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Abstract:
Microorganisms distributed in the marine and brackish environments
play an important role in the decomposition of organic matter and
mineralisation in the system (Seshadri and lgnacimuthu, 2002). Estuary is
one of the most productive ecosystems, at the same time one among the
least explored ecosystems on earth, which has immense potential as a
source of potent microorganisms that produce valuable compounds
particularly, enzymes such as proteases. In this scenario, it is very
appropriate to embark on finding novel alkaline protease producers from the
estuarine system. The area where the present investigation was carried out
is a part of the extensive estuarine system of South India viz. Cochin Estuary.
There is meagre knowledge regarding the microbial composition, particularly
the protease producers of Cochin Estuary. Hence, the present study has
been undertaken with the objective of finding novel alkaline protease
producing bacteria from Cochin Estuary
Description:
Department of Marine Biology, Microbiology and
Biochemistry, Cochin University of science and Technology
Bejoy, Thomas; Dr.Sugunan, S(Cochin University Of Science And Technology, September 22, 2004)
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Abstract:
The objective of the present work is to improve the textural and structural
properties of zeolite-Y through ion exchange with rare earth metals. We meant to
obtain a comparative evaluation of the physicochemical properties and catalytic
activity of rare earth modified H-Y, Na-Y, K-Y, and Mg-Y zeolites. Friedel-Crafts
alkylations of benzene with higher 1- olefins such as 1-octene, 1-decene, and 1dodecene
for the synthesis of linear alkylbenzene (LAB) have been selected for the
present study. An attempt has also been directed towards the correlation of the
enhancement in 2-phenylalkane formation to the improvement in the textural and
structural properties upon rare earth modification for the zeolite-Y. The present
method for LAB synthesis stands as an effective Green alternative for the existing
hydrofluoric acid technology
Description:
Department of Applied Chemistry
Cochin University of Science and Technology
Sugunan, Sankaran; Binitha, N N(React Kinet.Catal.Lett.& Akademiai Kiado, March 27, 2008)
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Abstract:
Linear alkylbenzene sulfonic acid, the largest-volume synthetic surfactant, in addition to its excellent performance , is important due to its biodegradable environmental friendliness, as it has a straight chain and is prepared by the sulphonation of linear alkylbenzenes (LAB). To ensure environmental protection, the commercial benzene alkylation catalysts HF or AICI3 are replaced and we have developed a clean LAB production process using a pillared clay catalyst capable of not only replacing the conventional homogeneous catalyst, but also having high selectivity for the best biodegradable 2-phenyl LAB isomer .Pillared clay catalysts having high Bronsted acidity show efficient conversion in gas phase alkylation of benzene with 1-octene with a good 2-phenyl octane selectivity.