Gokul Nair

Learn More
Different extracts of 1,000 ppm were prepared from the leaves of Parthenium hysterophorus using acetone, benzene, petroleum ether, diethyl ether and hexane as the solvents. The efficacy of each extract was assessed against dengue fever vector, Aedes aegypti by evaluating the variations in fecundity, fertility and behavioural response of the female adults.(More)
Risk assessment of the amnesic shellfish poison, domoic acid, a potent neurotoxin, is evaluated based on its current knowledge and its harmful effects, and is presented under four headings, viz., (1) hazard identification, (2) dose response assessment, (3) exposure assessment and (4) risk characterization. Domoic acid binds the glutamate receptor site of(More)
Chalcides ocellatus, a scincid lizard, sampled during October 1998 to December 1999 from Benina (farmland) and Al-Kueffia (a rocky area) in Benghazi, Libya, was found to harbour three intestinal nematodes, Pharyngodon mamillatus, Thelandros alatus and Parapharyngodon micipsae, and an intestinal cestode, Oochoristica tuberculata. Thelandros alatus, P.(More)
Non-lethal dose of 70% ethanol extract of the Nerium oleander dry leaves (1000 mg/kg body weight) was subcutaneously injected into male and female mice once a week for 9 weeks (total 10 doses). One day after the last injection, final body weight gain (relative percentage to the initial body weight) had a tendency, in both males and females, towards(More)
Since this project is a result of a class assignment, it has been graded and accepted as fulfillment of the course requirements. Acceptance does not imply technical accuracy or reliability. Any use of information in this report is done at the risk of the user. These risks may include catastrophic failure of the device or infringement of patent or copyright(More)
The quality of well waters, based on 23 parameters of water, at 12 stations of south-west coast of Kerala, India, was assessed during monsoon, 2009 and summer, 2010, to determine their suitability for drinking and other domestic purposes. The stations selected were grouped into four regions viz. least, slightly, moderately and severely affected ones based(More)
Studies were conducted during the period May 1993 to April 1994 on the density, biomass and vertical distribution ofAporrectodea caliginosa, a common species of earthworm found in the Benena farms in Benghazi, Libya. The soil of the farm was a clay loam, pH 7.3, and the organic matter averaged 4.2%. Maximum density and biomass ofA. caliginosa were recorded(More)
The quality of groundwater was assessed to their suitability for drinking at six places of north-east Libya viz. El-Marj, Albayda, Shahat, Susa, Ras al-Hilal and Derna, during November, 2003 to March, 2004, by determining their physicochemical parameters (17 parameters) and water quality index (15 parameters). The temperatures of water samples averaged 15.1(More)
This study presents the first survey of earthworm species (Oligochaeta) from Benghazi, a Mediterranean coastal city in Libya. A total of three peregrine species were recorded: Allolobophora caliginosa trapezoides, Allolobophora rosea (Family: Lumbricidae), Microscolex dubius (Family: Microscolecidae). Their distribution and density in six habitats(More)
The effects of four concentrations (25, 50, 75, 100%) of spinach homogenate filtrate over a period of 96 hours on the body mass and transpiration rates of the pulmonate slug Milax rusticus, a crop pest found in Benghazi, Libya, are reported. A decrease in body mass and transpiration rate in filtrate treated slug over time was evident and the differences in(More)
  • 1