824 research outputs found
Web based learning on KBSM chemical formulae incorporating selected multiple intelligences
Vision 2020 aspires our nation to establish a progressive and resourceful society that is able to contribute to the scientific and technological civilisation of the future. One of the strategies to achieve this aspiration would be through the system of education whereby web based learning would be a good platform to begin with. The aim of this project is to develop a website for KBSM Chemistry Form Four for the subtopic Chemical Formulae, which is under the topic Chemical Formulae and Equations, Chapter 3. The aim of this website is to provide a web based learning platform for students to learn Chemical Formulae. The theory of Multiple Intelligences has been incorporated in the development of this website. However, only four multiple intelligences are selected in delivering the learning contents. The four intelligences selected are Verbal Linguistics, Logical Mathematical, Visual Spatial and Interpersonal. The Hannafin & Peck Model was adapted throughout the development process, which includes Needs Assessment, Design and Development/ Implementation Phase. Evaluation was carried out simultaneously during all three phases of development. The primary software used in developing this website is Microsoft Office Frontpage. Integration of multimedia elements such as graphics, video and animation are used to enhance the process of learning. It is hoped that this website would benefit students with the selected four intelligences at an optimum level in learning Chemical Formulae
An Effective Private Data storage and Retrieval System using Secret sharing scheme based on Secure Multi-party Computation
Privacy of the outsourced data is one of the major challenge.Insecurity of
the network environment and untrustworthiness of the service providers are
obstacles of making the database as a service.Collection and storage of
personally identifiable information is a major privacy concern.On-line public
databases and resources pose a significant risk to user privacy, since a
malicious database owner may monitor user queries and infer useful information
about the customer.The challenge in data privacy is to share data with
third-party and at the same time securing the valuable information from
unauthorized access and use by third party.A Private Information Retrieval(PIR)
scheme allows a user to query database while hiding the identity of the data
retrieved.The naive solution for confidentiality is to encrypt data before
outsourcing.Query execution,key management and statistical inference are major
challenges in this case.The proposed system suggests a mechanism for secure
storage and retrieval of private data using the secret sharing technique.The
idea is to develop a mechanism to store private information with a highly
available storage provider which could be accessed from anywhere using queries
while hiding the actual data values from the storage provider.The private
information retrieval system is implemented using Secure Multi-party
Computation(SMC) technique which is based on secret sharing. Multi-party
Computation enable parties to compute some joint function over their private
inputs.The query results are obtained by performing a secure computation on the
shares owned by the different servers.Comment: Data Science & Engineering (ICDSE), 2014 International Conference,
CUSA
Recent trends in the mobulid fishery in Indian waters
Mobulidae are zooplanktivorous elasmobranchs, found circumglobally in tropical, subtropical and temperate coastal
waters. It comprises of two recognized species of manta rays (Manta spp.) and nine recognized species of devil rays
(Mobula spp.). Although the reports of mobulid fishery in India were only from 1960s, however it was commercially
exploited only after 2007 for their valuable gillrakers. Mobula diabolus, M. tarpacana, M. japonica, M. kuhlii, M.
thurstoni, Manta birostris and M. alfredi are the seven species which contributes to mobulid fishery. White gilled Mobula
tarpacana is highly targeted for its high priced gill raker which fetches upto Rs. 8,000 kg-1 in dry weight. Few mobulid
species has already reached the IUCN Red List status. Thorough monitoring of mobulid fish exploitation level is essential
in India. It is necessary to ensure standardized sampling and modelling methodologies to estimate the stock position of
these fishes from Indian waters
Unusual landing of the whitetip reef shark Triaenodon obesus at Cochin Fisheries Harbour
T. obesus, the only member of its genus, is a small
shark usually not exceeding 1.6 m in length. This
species is easily recognisable by its slender body
and short but broad head, tubular skin flaps beside
the nostrils, and white-tipped dorsal and caudal fins
Unusual landing of the spotted ocean triggerfish Canthidermis maculata at Cochin Fisheries Harbour
Unusual landing of the ocean triggerfish
Canthidermis maculata (Family: Balistidae) was
observed at Cochin Fisheries Harbour (CFH) on
11th January 2013 (Fig 1a & b). About 300 kg of
fishes were landed in gillnet operated off Cochin
at a depth of 20- 30 m. The species is occasionally
seen in stray numbers in trawl landings at CFH
and this is for the first time a landing of this
magnitude is observed at CFH. The fishes were
sold at the landing centre @ ` 30 тАУ 40/- per kg for
local consumption
Heavy landings of the shortfin mako shark, Isurus oxyrinchus at Cochin Fisheries Harbour
During January - February 2013, heavy landings
of the shortfin mako shark Isurus oxyrinchus (Family:
Lamnidae) by multiday gillnet-hooks and line units
were observed at Cochin Fisheries harbour (CFH)
(Fig. 1a & b). I. oxyrinchus is generally seen in the
landings by gillnet-hooks and line units (operated off
the west coast of India extending from Kerala to
Gujarat coasts) at CFH, but in small numbers of larger
specimens. The start of 2013 fishing season
witnessed heavy landings of this species, of a wide
size range (100 тАУ 220 cm total length; 7 тАУ 75 kg
weight), dominating the shark landings at CFH
second to Carcharhinus falciformis on certain days.
The length-frequency distribution as well as detailed
biological aspects of this species is currently being
studied as part of the Institute research project on
тАЬAssessment of elasmobranch resources of Indian
Seas
National Marine Debris Management Strategy to conserve marine ecosystems
Marine debris which is defined as any persistent,manufactured or processed solid material discarded,disposed of or abandoned in the marine and coastalenvironment is one of the most pervasive, yetpotentially solvable, pollution affecting the worldтАЩsoceans, coastal ecosystems and rivers. Whereasimpacts of most anthropogenic activities are usuallyfound near the point source, marine debris has beenfound to impact even distant locations, oftenaffecting uninhabited areas also. According toUnited Nations Joint Group of Experts on theScientific Aspects of Marine EnvironmentalProtection (GESAMP), 60 to 80%, of the global litterfound in the coastal and marine ecosystems hasoriginated from land and only the rest from seabased activities. The slow degradable nature ofmarine litter and the potential to pollute all spheresof oceans irrespective of point source has raisedthe alarm bells
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