2,781 research outputs found
Salinity tolerance and fishery of mud shrimp Solenocera crassicornis (H. Milne Edwards) in the coastal waters of Mumbai
Salinity tolerance of mud shrimp Solenocera crassicornis investigated at different salinities ranging
from 15‰ to 55‰ showed that shrimps in the salinity range 30‰ - 42‰ survived but those in lower and
higher salinities died soon after the transfer. Ionic concentration in the hemolymph and free amino acids
in the body muscle in response to different salinity ranges showed hypo-regulation initially but later
became hyposmotic to the medium and died eventually when the salinity decreased. The abundance of
shrimp showed inverse relationship with rainfall and consequent lowering of salinity in the inshore
waters. The study showed that S. crassicornis can regulate osmotic and ionic concentrations of body
fluids efficiently in the salinity range of 30 - 42‰ but unlike euryhaline penaeid shrimps it is a poor
regulator at lower salinities and therefore it migrates offshore during monsoon months
Wild Edible Plants Used By the Tribes of Akole Tahasil of Ahmednagar District (Ms), India
The present communication deals with the ethnobotanical exploration,identification,concerns and future potentialities of the wild edible plant species consumed by the tribal communities inhabiting in the hilly areas of akole tahasil of Ahmednagar district fall in Maharashtra state-India. A total of 31 plant species belonging to 23 families were reported from the study area. Amaranthaceae was the dominant family with 4 taxa,while Papilionaceae followed with 3 taxa. Ascplepidaceae and Bignoniaceae represented by 2 taxa each. The four major life forms were climbers, herbs, shrubs and trees. Herb makes up the highest proportion of the edible species followed by trees, shrubs and climbers. The plant species are divided into two class-vegetables and raw. Also the present finding support further investigation into nutritional profits, pharmacological prospects and conservational studies
Privacy Preserving Public Auditing and Data Integrity for Secure Cloud Storage Using Third Party Auditor
Using cloud services, anyone can remotely store their data and can have the on-demand high quality applications and services from a shared pool of computing resources, without the burden of local data storage and maintenance. Cloud is a commonplace for storing data as well as sharing of that data. However, preserving the privacy and maintaining integrity of data during public auditing remains to be an open challenge. In this paper, we introducing a third party auditor (TPA), which will keep track of all the files along with their integrity. The task of TPA is to verify the data, so that the user will be worry-free. Verification of data is done on the aggregate authenticators sent by the user and Cloud Service Provider (CSP). For this, we propose a secure cloud storage system which supports privacy-preserving public auditing and blockless data verification over the cloud
An Ant Colony Optimization based Routing Techniques for VANET
With number of moving vehicles, vehicular Ad Hoc Network (VANET) is formed. These are provided with the wireless connections. Among various challenges in the VANET such as security and privacy of the messages, data forwarding is also considered as a major challenge. The effective communication is mainly depends on the how safely and fast the data is being forwarded among the vehicles. Data forwarding using Greedy mechanism suitable for routing in the VANETs, it depends only on the position of nodes and also data forwarding is done with minimum number of hops. In this paper, Position based GPCR and topology based DYMO routing protocol are adapted to make the use of Ant Colony Optimization (ACO) procedures. The resulting bio-inspired protocols, ACO_GPCR and ACO_DYMO had its performance evaluated and compared against existing GPCR and DYMO routing protocols. The obtained results suggest that making the use of ACO algorithm make these protocols more efficient in terms of Delay, Jitter, Packet Delivery Ratio and energy consumption
Coastal management to protect the fisheries resources of Gujarat coast - a case study
Gujarat, a unique maritime state has the longest coastline of 1 ,663 km length and
characterized by presence of two gulfs namely the Gulf of Kachchh and the Gulf of Khambhat.
The four major rivers of Gujarat (Sabarmati, Mahi, Narmada and Tapti) discharged 70387
Mm3IYear to the Gulf of Khambhat as of 1975. Since then several dams have been
constructed on these rivers and their tributaries reducing the volumes of the outflow. It
can, safely be assumed that the outflow of nutrient-laden silt from these rivers has, also
reduced proportionately/ significantly changing the hydrological cycles
Morphometric studies in the genus Clerodendrum L.
Six Clerodendrum L. species from Kolhapur district were morphometrically analyzed with the help of PCA, cluster analysis and CD. It was observed that the quantitative characters viz. petiole length, leaf length and leaf width have great significance in delimitation of all the species and corolla tube length, leaf width, gynoecium length and leaf length have great contribution in separation of the taxa. Clerodendrum multiflorum (Burm.f.) O. Ktze.- Clerodendrum inerme (L.) Gaertn., Clerodendrum paniculatum L. - Clerodendrum viscosum Vent. and Clerodendrum inerme (L.) Gaertn. - Clerodendrum serratum (L.) Moon. are very closely related with each other and Clerodendrum multiflorum (Burm.f.) O.Ktze.- Clerodendrum paniculatum L. and Clerodendrum multiflorum (Burm.f.) O. Ktze. - Clerodendrum viscosum Vent. are significantly different from each other
Facile fabrication of lateral nanowire wrap-gate devices with improved performance
We present a simple fabrication technique for lateral nanowire wrap-gate
devices with high capacitive coupling and field-effect mobility. Our process
uses e-beam lithography with a single resist-spinning step, and does not
require chemical etching. We measure, in the temperature range 1.5-250 K, a
subthreshold slope of 5-54 mV/decade and mobility of 2800-2500 --
significantly larger than previously reported lateral wrap-gate devices. At
depletion, the barrier height due to the gated region is proportional to
applied wrap-gate voltage.Comment: 3 pages, 3 figure
Great Inequality of Jupiter and Saturn I: The Planetary Three Body Problem, Heliocentric development by Lagrange multipliers, Perturbation Theory Formulation
In this paper, we undertake to present a self-contained and thorough analysis
of the gravitational three body problem, with anticipated application to the
Great Inequality of Jupiter and Saturn. The analysis of the three body
Lagrangian is very convenient in heliocentric coordinates with Lagrange
multipliers, the coordinates being the vector-sides of
the triangle that the bodies form. In two dimensions to begin with, the
equations of motion are formulated into a dynamical system for the polar angles
, angular momenta and eccentricity vectors . The
dynamical system is simplified considerably by change of variables to certain
auxiliary vector . We then begin to formulate
the Hamiltonian perturbation theory of the problem, now in three dimensions. We
first give the geometric definitions for the Delaunay action-angle variables of
the two body problem. We express the three body Hamiltonian in terms of
Delaunay variables in each sector , revealing that it is a nearly
integrable Hamiltonian. We then present the KAM theory perturbative approach
that will be followed in future work, including the modification that will be
required because the Hamiltonian is degenerate
Study of rationality and utilization pattern of antimicrobials in ear, nose, throat outpatient department of Tertiary Care Hospital, Nanded
Background: Antimicrobials are most commonly prescribed drugs worldwide. Around 50% of the prescriptions of antimicrobial drugs are either not needed, inappropriate or in wrong doses. With the widespread use of antimicrobial agents (AMAs), the prevalence of resistance has increased. To evaluate the prescription pattern and utilization of AMA in ear, nose, throat (ENT) outpatient department (OPD) of Tertiary Care Hospital, Nanded.Methods: This prospective study was conducted in ENT OPD of Dr. Shankarrao Chavan Government Medical College, Nanded over a period of 3 months. During this period, approximately 1100 patients visited ENT OPD and 600 prescriptions were evaluated. The excluded patients were of post-operative follow-up and of patients undergoing medical examination for fitness and handicap certificate. Data were collected by using specially designed case report form. Appropriateness of AMA was assessed by Kunin’s modified criteria.Results: Total 600 prescriptions were analyzed out of which (91%) consist of AMA. Most of them reported with upper respiratory tract infections (URTI) (30.4%), chronic suppurative otitis media (21.4%), acute suppurative otitis media (10.4%), tonsillitis (3.3%), sinusitis (2.7%), and others (15%). Amoxicillin (43.9%) was preferred AMA followed by ciprofloxacin (30.6%), cotrimoxazole (5.8%), azithromycin (3.2%), doxycycline (3.2%) cefixime + clavulanate (3.2%), and amoxicillin + clavulanate (1.8%). Single antibiotic was preferred in all prescriptions. In the concomitant medications, antihistaminics were prescribed in 97.22% of patients, non-steroidal anti-inflammatory drugs in 94.96% of patients, and antacids in 87.76% of patients. Fixed-dose combinations were used in 10% of prescriptions. Brand names of AMA were used in 10% of prescriptions. As per the Kunin’s modified criteria, 83% of patients received AMA therapy appropriately, while 17% patients inappropriately.Conclusions: Amoxicillin is the most common AMA prescribed and URTI is the most common diagnosis made. All AMAs should be prescribed only when needed and should be used in proper dose and for proper duration. Institution wise antibiotic policy should be used to contain resistance. Proper training and regular orientation programs of the juniors’ doctors for judicial use of AMAs will foster the habit of rational prescribing of AMA
An Enhanced Multi-layered Cryptosystem Based Secure and Authorized De-duplicaton Model in Cloud Storage System
Data de-duplication is one of the essential data compression techniques for eliminating duplicate copies of repeating data, and it has been widely used in cloud storage to reduce the amount of storage space and save bandwidth. To protect the privacy of sensitive data while supporting de-duplication, the salt encryption technique has been proposed to encrypt the data before its outsourcing. To protect the data security in a better way, this paper makes the first attempt to formally address the problem of authorized data de-duplication. Different from traditional de-duplication systems, the derivative privileges of users are further considered in duplicate check besides the data itself. We also present various new de-duplication constructions which supports the authorized duplicate check in hybrid cloud architecture. Security analysis demonstrates that the scheme which we used is secure in terms of the definitions specified in the proposed security model. We enhance our system in security. Specially, we present a forward-looking scheme to support a stronger security by encrypting file with differential privilege keys. We show that our proposed authorized duplicate check scheme incurs minimal overhead compared to normal operations
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