Hatha, A A M; Abhirosh, C; Sherin, V; Thomas, A P; Abhilash, P C(Springer India, August 3, 2010)
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Abstract:
Prevalence of faecal coliform bacteria and the
survival of Escherichia coli, Vibrio parahaemolyticus and
Salmonella paratyphi were studied in the water and sediment
from Vembanadu Lake in the presence and absence
of protozoan predators. The density of faecal coliform bacteria
ranged between mean MPN value 5080–9000/100 ml
in water and 110,000–988,000/1 g in sediment (p <0.01),
which was 110 times greater than in overlying water. The
laboratory microcosm studies revealed that E. coli, V. parahaemolyticus
and S. paratyphi showed significantly higher
survival (p <0.05) potential in sediment than in overlying
water both in the presence and absence of protozoan predators.
The results indicate that Vembanadu Lake sediment
constitutes a reservoir of pathogenic bacteria and exhibits
potential health hazard from possible resuspension and subsequent
ingestion during recreational activities. Therefore,
assessment of bacterial concentration in freshwater lake sediments
used for contact and non-contact recreation is of considerable
significance for the proper assessment of microbial pollution of the overlying water and the management
and protection of related health risk at specific recreational
sites. In addition, assessment of the bacterial concentration
in sediments can be used as a relatively stable indicator of
long-term mean bacterial concentration in the water column
above.
Hatha, A A M; Abhirosh, C; Sherin, V; Thomas, A P; Mazumder, A(Elsevier, March 23, 2011)
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Abstract:
To assess the prevalence of faecal coliform bacteria and multiple drug resistance
among Escherichia coli and Salmonella serotypes from Vembanadu Lake.
Study design: Systematic microbiological testing.
Methods: Monthly collection of water samples were made from ten stations on the southern
and northern parts of a salt water regulator constructed in Vembanadu Lake in order to
prevent incursion of seawater during certain periods of the year. Density of faecal colifrom
bacteria was estimated. E. coli and Salmonella were isolated and their different serotypes
were identified. Antibiotic resistance analysis of E. coli and Salmonella serotypes was done
and the MAR index of individual isolates was calculated.
Results: Density of faecal coliform bacteria ranged from mean MPN value 2900 -7100/100ml.
Results showed multiple drug resistance pattern among the bacterial isolates. E. coli
showed more than 50% resistance to amickacin, oxytetracycline, streptomycin, tetracycline
and kanamycin while Salmonella showed high resistance to oxytetracycline, streptomycin,
tetracycline and ampicillin. The MAR indexing of the isolates showed that they
have originated from high risk source such as humans, poultry and dairy cows.
Conclusions: The high density of faecal coliform bacteria and prevalence of multi drug
resistant E. coli and Salmonella serotypes in the lake may pose severe public health risk
through related water borne and food borne outbreaks
Mahesh,R; Rajasenan, D(Department of Applied Economics, 2006)
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Abstract:
The present study is an attempt to understand the link between natural resource degradation and poverty among people dependent on these resources. This is done by examining the impact of depletion of marine resources on the livelihood and socio-economic condition of the small-scale marine fishery community in South Kerala. In Kerala, nearly ten lakh fisherfolk depend on the marine fishery resources for their livelihood. The overall level of education of the small-scale fishing community is lower than that of the State’s rural population. Almost all the households surveyed, is one way or other, depend on fishery resources for livelihood. Low levels percapita income and high levels of inequality imply the existence of a large proportion of poor people in the community who are vulnerable to external shocks. The study reveals that poverty was comparatively higher among households with no fishing assets, with only one earner, with more than two children, and depending entirely on pensions/remittances. The study has not provided any evidence to show that poverty in the community is the result of depletion of marine resources.
Choudhury, P K(Microwave and Optical Technology Letters, November 25, 2002)
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Abstract:
A fairly rigorous analytical treatment of the power characteristics
of dielectric optical waveguides with Piet Hein core-cross
sectional geometry is presented in this paper. This kind of wareguide
structure would be advantageous owing to the absence of corners,
which are found in rectangular guides, resulting in undesirable loss (hit
to the scattering of light. In order to simplify this theoretical approach.
em approximation of vanishing refractive index difference between the
guiding and the non-guiding sections is implemented. The variation eJ
logarithmic power is shown for different dimensions of the core, corresponding
to different azimuthal modal indices. It is found that the nutlet
with higher index values carry less logaritlunic power in the lower tail
of the propagation 's constant range, and this feature affects the higher
tail. A better kind of uniformity of the power distribution is observed
near the higher tail of the range of propagation Constants
Parameswaran, K; Markose,A T(Cochin University of Science and Technology, July , 1976)
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Abstract:
The Power Of Taxation Under The lndian Constitution, the subject of the present thesis has a
wide ambit covering the entire federal field end deep constitutional significance traversing many of the principles like pith and substance, colourability, severebility etc. However, considerations of time, space and areas already investigated have indicated that the present study may be confined to the fundamental constitutional limitations end the federal problem. Thus the effect of fundamental rights, the commerce clause, immunity of instrumentalitis and the principle limiting the power of legislative delegation on the power of taxation has been studied. The distribution of taxes between the Union and units of the Indian federation leans so much over to the former and that part of this study has been directed to discover what devices can help the units to gain economic viability
Description:
School of legal studies,Cochin University of Science And Technology
Sebastian, Rupert Mampilly; Dr.Sankaranarayanan, K C(Cochin University of Science and Technology, 1998)
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Abstract:
Managers are central to any fuction in a complex and developed society. Their talents are reckoned to be cardinal in developed economies and a basic yearning of all developing economies.In order to survive and produce results in a turbulent and transient environment, the task is to understand the nature of factors contributing to managerial effectiveness. This study is an attempt towards this core issue of the present from a different perspective. This study tries to focus attention on a group of managers functioning in the field of banking, a core sector in the country's economy. The gamut of economic activities in Kerala being predominantly service-oriented, importance of commercial banking is almost indisputable. Though economists would argue that the disproportionate development of service sector is anomalous when viewed against the hazy scenarios in the primary and secondary sectors of the state’s economy, the extent and pace of growth in the banking sector has had its dole meted out by ambitious and productive managers fiinctioning in the field. Researcher’s attempt here is to thresh the grain and chaff among bank managers in terms of their effectiveness and to account for the variations in the light of their ability to affect the thoughts and actions of their subordinates. To put it succinctly, the attempt herein is to explain the effectiveness of bank managers in the light of their ‘Power Profile’ taken to be comprising Power Differentials, Power Bases, their Visibility and Credibility in the organisation and, the Power Styles typically used by them for influencing subordinates.
Description:
of Management Studies,
Cochin University of Science and Technology
Sajeeve,V P; Dr.George, Varghese K(Cochin University Of Science And Technology, May 18, 2004)
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Abstract:
In spite of the far longed practices of technical analysis by many
participants in Indian stock market, none have arrived at the exact position of
technical analysis as a tool for foretelling share prices. There is no evidence
supporting that one has established its definite role in predicting the behaviour of
share price and also to see the extent of validity (how far reliable) of technical tools
in Indian stock market. The problem is the vacuum in the arena of securities market
analysis where an unrecognised tool is practised, i.e., whether to hold on to technical
analysis or to drop it. Again, as already stated in this chapter, its validity need not
continue forever. It may become futile as happened in developed markets.
Continuous practice of a tool, which is valid only during discontinuous times is also
an error. The efficacy of different market phenomena in terms of their ability to
foretell the extent and direction of the price movements and reliability thereof
remain as not yet proved in. This requires further study in this area so that this
controversy may be settled. A solution to the problem requires enquiring and
establishing the applicability of technical analysis, if any, there is in the Indian stock
market. The study has the following two broad objectives for the purpose of
confirming the applicability, if any, of technical analysis in the Indian stock market.
The first objective is to ascertain the current validity of ‘traditional holding with
respect to patterns’ and the second objective is to ascertain the ‘consistent
superiority’, if any, of technical indicators over non-signal strategies in return
generation. The study analyses the five patterns, which are widely known and
commonly found in publications. They are: (1) Symmetrical Triangles, (2) Rising
Wedges, (3) Falling Wedges, (4) Head and Shoulders Top and (5) Head and
Shoulders Bottom.
Description:
School Of Management Studies
Cochin University Of Science And Technology
Ramachandran, A; Saleem Khan, A; Usha, N; Punitha, S; Selvam, V(Elsevier, August 23, 2012)
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Abstract:
Low-lying coastal areas are more vulnerable to the impacts of climate change as they are highly prone for
inundation to SLR (Sea-Level Rise). This study presents an appraisal of the impacts of SLR on the coastal
natural resources and its dependent social communities in the low-lying area of VellareColeroon
estuarine region of the Tamil Nadu coast, India. Digital Elevation Model (DEM) derived from SRTM
90M (Shuttle Radar Topographic Mission) data, along with GIS (Geographic Information System) techniques
are used to identify an area of inundation in the study site. The vulnerability of coastal areas in
Vellar-Coleroon estuarine region of Tamil Nadu coast to inundation was calculated based on the projected
SLR scenarios of 0.5 m and 1 m. The results demonstrated that about 1570 ha of the LULC (Land use
and Land cover) of the study area would be permanently inundated to 0.5 m and 2407 ha for 1 m SLR and
has also resulted in the loss of three major coastal natural resources like coastal agriculture, mangroves
and aquaculture. It has been identified that six hamlets of the social communities who depend on these
resources are at high-risk and vulnerable to 0.5 m SLR and 12 hamlets for 1 m SLR. From the study, it has
been emphasized that mainstreaming adaptation options to SLR should be embedded within a coastal
zone management and planning effort, which includes all coastal natural resources (ecosystem-based
adaptation), and its dependent social communities (community-based adaptation) involved through
capacity building
Kannan, Balakrishnan; Julie, David M(IACSIT, February , 2011)
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Abstract:
This paper highlights the prediction of learning
disabilities (LD) in school-age children using rough set theory
(RST) with an emphasis on application of data mining. In
rough sets, data analysis start from a data table called an
information system, which contains data about objects of
interest, characterized in terms of attributes. These attributes
consist of the properties of learning disabilities. By finding the
relationship between these attributes, the redundant attributes
can be eliminated and core attributes determined. Also, rule
mining is performed in rough sets using the algorithm LEM1.
The prediction of LD is accurately done by using Rosetta, the
rough set tool kit for analysis of data. The result obtained from
this study is compared with the output of a similar study
conducted by us using Support Vector Machine (SVM) with
Sequential Minimal Optimisation (SMO) algorithm. It is found
that, using the concepts of reduct and global covering, we can
easily predict the learning disabilities in children
Description:
International Journal of Computer and Electrical Engineering, Vol.3, No.1, February, 2011
1793-8163
This paper highlights the prediction of Learning
Disabilities (LD) in school-age children using two classification
methods, Support Vector Machine (SVM) and Decision Tree (DT),
with an emphasis on applications of data mining. About 10% of
children enrolled in school have a learning disability. Learning
disability prediction in school age children is a very complicated
task because it tends to be identified in elementary school where
there is no one sign to be identified. By using any of the two
classification methods, SVM and DT, we can easily and accurately
predict LD in any child. Also, we can determine the merits and
demerits of these two classifiers and the best one can be selected for
the use in the relevant field. In this study, Sequential Minimal
Optimization (SMO) algorithm is used in performing SVM and J48
algorithm is used in constructing decision trees.
Description:
(IJCSIT) International Journal of Computer Science and Information Technologies, Vol. 2 (2) , 2011, 829-835
Anantharaman, M R; Reijne, S; Jacobs, J P; Brongersma, H H; Smits, R H H; Seshan, K(Kluwer Academic Publishers, 1999)
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Abstract:
Spinel ferrites are commercially important because of their excellent magnetic and catalytic
properties. The study by Low Energy Ion Scattering (LEIS) can reveal atomic scale
information on the surface. The surface of selected spinel ferrites was investigated by LEIS.
It has been found that it is the octahedral sites which are preferentially exposed on the
surface of the spinel ferrites. So the probable planes which are exposed on spinel ferrite
surfaces are D(110) or B(111). This prediction using LEIS gives scope for tailor-making
compounds with catalytically active ions on the surface for various catalytic reactions.
Description:
JOURNAL OF MATERIALS SCIENCE 34 (1999) 4279 – 4283