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Annadurai Hemalatha, Syed Abdul Rahman Mohammed Esa, Murugan Suresh, Nooruddin Thajuddin, Perumal Anantharaman
The antibacterial potential of centric marine diatoms has been compared against the clinical pathogens and identified the potential diatom by rbcL gene sequencing. Totally, five diatoms namely Odontella aurita, Thalassiosira subtilis, Chaetoceros curvisetus, Skeletonema costatum and Coscinodiscus centralis were isolated from Cuddalore coastal waters. The diatoms were morphologically identified and isolated using micro capillary-pipette and serial dilution method. The isolated diatoms were cultured in Guillard's f/2 medium to get biomass for the antibacterial study...
April 6, 2016: Mitochondrial DNA. Part A. DNA Mapping, Sequencing, and Analysis
Srinivasan Radhakrishnan, Mohan Varadharajan
Soil is a complex and dynamic biological system. Agroforestry systems are considered to be an alternative land use option to help and prevent soil degradation, improve soil fertility, microbial diversity, and organic matter status. An increasing interest has emerged with respect to the importance of microbial diversity in soil habitats. The present study deals with the status of microbial diversity in agroforestry systems in Tamil Nadu. Eight soil samples were collected from different fields in agroforestry systems in Cuddalore, Villupuram, Tiruvanamalai, and Erode districts, Tamil Nadu...
June 2016: Journal of Basic Microbiology
D Ramesh, M Muniaraj, P Philip Samuel, V Thenmozhi, A Venkatesh, J Nagaraj, B K Tyagi
BACKGROUND & OBJECTIVES: Japanese encephalitis (JE) is the leading cause of viral encephalitis in Asia. The first major JE outbreak occurred in 1978 and since 1981 several outbreaks had been reported in the Cuddalore district (erstwhile South Arcot), Tamil Nadu, India. Entomological monitoring was carried out during January 2010 - March 2013, to determine the seasonal abundance and transmission dynamics of the vectors of JE virus, with emphasis on the role of Culex tritaeniorhynchus and Cx...
December 2015: Indian Journal of Medical Research
Aswin Amalavathy Viswanathan, Nilesh Chandrakant Gawde
CONTEXT: There is conflicting evidence of effect of diabetes on treatment of tuberculosis (TB). There is a need to investigate effect of diabetes on outcomes of TB treatment under field conditions in India. AIMS: To compare treatment outcomes among TB patients with diabetes with those without diabetes. SETTING AND DESIGN: Study was conducted in Cuddalore, Tamil Nadu, among patients registered with Revised National TB Control Programme. Prospective observational study design was used...
July 2014: Lung India: Official Organ of Indian Chest Society
G Nirmala, G Viruthagiri
Production of ceramic bricks from mixtures of ceramic industry wastes (up to 50 wt%) from the area of Vriddhachalam, Cuddalore district, Tamilnadu, India and kaolinitic clay from Thiruvananthapuram district, Kerala were investigated. The firing behavior of the ceramic mixtures was studied by determining their changes in mineralogy and basic ceramic properties such as water absorption, porosity, compressive strength and firing shrinkage at temperatures ranging from 900 to 1200 °C in short firing cycles. The effect of the rejects addition gradually up to 50 wt% was analyzed with the variation of temperature on the mechanical properties and microstructure of the bricks...
January 25, 2015: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
Anand Prabhu, Arun P Rao, Venugopal Reddy, Kaliyamoorthy Sugumaran, Govindharajan Mohan, Syed Ahamed
The objective of this study was to assess the prevalence of needlestick injury (NSI) and the awareness and attitudes of dental nurses in Cuddalore district, India, toward needle safety. Responses were gathered from 102 dental nurses via a questionnaire that included demographic data, the prevalence of NSIs in the past 6 months, their causes, responses of dental nurses to such injuries, and dental nurses' awareness of injection safety practices. Altogether, 33.3% (n = 34 of 102) of the respondents had sustained at least one NSI in the past 6 months...
June 2014: Workplace Health & Safety
Parasuraman Basker, Pichai Kannan, Karumana Gounder Kolandaswamy
OBJECTIVES: To know the prevalence of leptospirosis cases reported in private clinics among fever cases in Villupuram District, Tamil Nadu, India to know its real magnitude of the problem and to diagnose Leptospirosis among fever cases from differential diagnosis. METHODS: 1502 Blood serum samples collected from three urban towns namely Kallakurichi (Latitude: 11° 73' N; Longitude: 78° 97' E), Villupuram (Latitude: 11° 75' N; Longitude: 79° 92' E) and Thindivanam (Latitude: 12° 25' N; Longitude: 79° 65' E) in fifteen clinics based on case definition of leptospirosis delineated by the National Vector Borne Disease Control Programme (NVBDCP), Government of India...
February 2014: Osong Public Health and Research Perspectives
Cuddalore Subramanian Arulparithi, Thirunavukkarasu Arun Babu, C Ravichandran, Indumathy Santhanam, B Sathyamurthi, S Parivathini, J Hemachitra
OBJECTIVE: To compare the efficacy of nebulised budesonide with that of oral prednisone in the treatment of acute severe asthma in children. METHODS: Children aged 5-12 y with acute exacerbation of bronchial asthma were included. The study (budesonide) group received budesonide respirator solution (800 μg) at intervals of 20 min and a single dose of placebo tablets. The control (prednisolone) group received placebo solution at intervals of 20 min and a single dose of oral prednisolone (2 mg/kg)...
April 2015: Indian Journal of Pediatrics
K Raja, R Vijayakumar, V Karthikeyan, A Saravanakumar, K Sindhuja, A Gopalakrishnan
The present study reported the first observation of isopod parasite, Nerocila phaiopleura infestation on Chirocentrus nudus an economically important fish from Cuddalore coast, Southeast coast of India. The maximum prevalence of 6.3 % and mean intensity of 3.2 were observed during pre-monsoon 2010 and monsoon 2010 respectively. The highest intensity 7 was observed in the single host during monsoon. The site of attachment leads to wound and offer the secondary infection. Two pathogenic bacteria Streptococcus aureus and E...
June 2014: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
R Vijayakumar, A Gopalakrishnan, K Raja, K Sinduja
We examined the occurrence of odontoma in the marine fish Sphyraena jello sourced from 3 different landing centers (Cuddalore, Parangipettai and Nagapattinam) in Tamil Nadu (southeast India). A total of 19783 fishes were examined for odontoma presence, of which 2393 were affected with odontoma. The overall prevalence was 12.1% among the 3 stations. Fish landed at Parangipettai showed the highest peak prevalence of odontoma (16.8%) during the pre-monsoon, followed by Nagapatinam (9.1%) during summer 2011. The tumour lengths in premaxilla, supermaxilla and dentary bone were 1...
February 4, 2014: Diseases of Aquatic Organisms
Sahebrao Sonkamble, Subash Chandra, Shakeel Ahmed, R Rangarajan
There is a growing concern of seawater intrusion to freshwater aquifers due to groundwater overexploitation in the eastern coastal belt of Southern India. The problem becomes complex in the regions where industrial effluents are also contaminating the freshwater aquifers. In order to understand the hydrochemical complexity of the system, topographic elevation, static water level measurements, major ion chemistry, ionic cross plots, water type contours and factor analysis were applied for 144 groundwater samples of shallow and deep sources from Quaternary and Tertiary coastal aquifers, located within the industrial zone of 25 km(2) area near Cuddalore, Southern India...
January 15, 2014: Marine Pollution Bulletin
Parasuraman Basker, Radhakrishnan Ezhil
CONCLUSIONS: It is concluded that this study helps in conducting rapid survey to identify the presence of Aedes larvae with a minimum number of staff for both inspection and treatment of Aedes larvae during the epidemic situation. OBJECTIVES: To predict dwellings for the presence of Aedes larvae rapidly based on Premises Condition Index (PCI) factors, we studied the possible presence of Aedes species mosquitoes larvae among houses in the Chidambaram urban of Cuddalore District in Tamil Nadu, India based on the scores of variables in PCI, namely House, Yard and degree of shadow...
March 2012: Osong Public Health and Research Perspectives
S Nalini, R Parthasarathi
The aim of the study was to characterize and optimize the growth media for biosurfactant production from Serratia rubidaea SNAU02 isolated from hydrocarbon-contaminated soil from Cuddalore district, Tamilnadu, India. The biosurfactant produced by S. rubidaea SNAU02, was able to reduce the surface tension to 34.4 mN m(-1) in MSM medium. The biosurfactant was characterized by FT-IR and GC-MS analysis. The GC-MS analysis shows that dirhamnolipid was detected in abundance as predominant congener than monorhamnolipid...
November 2013: Bioresource Technology
Panchanathan Manivasagan, Jayachandran Venkatesan, Kannan Sivakumar, Se-Kwon Kim
Poultry waste is an abundant renewable source for the recovery of several value-added metabolites with potential industrial applications. This study describes the production of protease on poultry waste, with the subsequent use of the same poultry waste for the extraction of antioxidants. An extracellular protease-producing strain was isolated from Cuddalore coast, India, and identified as Streptomyces sp. MAB18. Its protease was purified 17.13-fold with 21.62% yield with a specific activity of 2398.36 U/mg and the molecular weight was estimated as 43 kDa...
2013: BioMed Research International
B Rajamannan, G Viruthagiri, K Suresh Jawahar
The activity concentrations of radium, thorium and potassium can vary from material to material and they should be measured as the radiation is hazardous for human health. Thus, studies have been planned to obtain the radioactivity of ceramic building materials used in Cuddalore District, Tamilnadu, India. The radioactivity of some ceramic materials used in this region has been measured using a gamma-ray spectrometry, which contains an NaI(Tl) detector connected to multichannel analyzer. The specific activities of (226)Ra, (232)Th and (40)K, from the selected ceramic building materials, were in the range of 9...
October 2013: Radiation Protection Dosimetry
P Murugesan, K Revathi, S Elayaraja, S Vijayalakshmi, T Balasubramanian
Distribution of major groups of enteric bacteria viz., Escherichia coli, Shigella spp., Salmonella spp., Vibrio parahaemolyticus and Vibrio cholerae was studied in the sediment samples collected from different depths of 5, 15, 25 and 35 m in Parangipettai and Cuddalore coast during March, 2009 to February, 2010. Among the bacterial population in Parangipettai, V parahaemolyticus was found to be maximum with an occurrence of 55% followed by Shigella spp. (15%), V cholerae (12%), Salmonella spp. (12%) and E. coli (6%)...
July 2012: Journal of Environmental Biology
N Annamalai, R Thavasi, S Vijayalakshmi, T Balasubramanian
Thermostable alkaline α-amylase producing bacterium Bacilluscereus strain isolated from Cuddalore harbour waters grew maximally in both shake flask and fermentor, and produced α-amylase at 35°C, pH 7.5 and 1.0% of substrate concentrations. α-Amylase activity was maximum at 65°C, pH 8.0, 89% of its activity was sustained even at pH 11.0. Added with MnCl(2,) α-amylase activity showed 4% increase but it was inhibited by EDTA. The molecular weight of the purified α-amylase is 42 kDa.
October 2011: Indian Journal of Microbiology
Duraisamy Thiyagarajan, Kottila Veettil Dhaneesh, Thipramalai Thankappan Ajith Kumar, Saravanan Kumaresan, Thangavel Balasubramanian
Metal concentrations (cadmium, chromium, iron, lead, copper, manganese, zinc and mercury) in the muscle of five fish species (Epinephelus chlorostigma, Lutjanus russelli, Terapon jarbua, Cynoglossus arel and Lagocephalus lunaris) from the six fish landing centres along southeast coast of India were measured. In Cuddalore and Mudasalodai, the level of toxic metals cadmium, chromium and manganese were well above the permissible limits. Concentrations of cadmium, chromium, manganese and mercury in C. arel were above the permissible limit and it is consistent with their habitat and diet...
April 2012: Bulletin of Environmental Contamination and Toxicology
S Sankaran, S Sonkamble, K Krishnakumar, N C Mondal
This paper deals with a systematic hydrogeological, geophysical, and hydrochemical investigations carried out in SIPCOT area in Southern India to demarcate groundwater pollution and saline intrusion through Uppanar River, which flows parallel to sea coast with high salinity (average TDS 28, 870 mg/l) due to back waters as well as discharge of industrial and domestic effluents. Hydrogeological and geophysical investigations comprising topographic survey, self-potential, multi-electrode resistivity imaging, and water quality monitoring were found the extent of saline water intrusion in the south and pockets of subsurface pollution in the north of the study area...
August 2012: Environmental Monitoring and Assessment
V Mathivanan, R Prabavathi, C Prithabai, Selvisabhanayakam
Phytoremediation is a promising area of new research, both for its low cost and great benefit to society in the clean retrieval of contaminated sites. Phytoremediation is the use of living green plants for in situ risk reduction and/or removal of contaminants from contaminated soil, water, sediments, and air. Specially selected or engineered plants are used in the process. The soil samples were taken from Cuddalore Old Town (OT) and the samples from SIPCOT industrial complex, which was the study area and analyzed for various metals concentrations...
July 2010: Toxicology International
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