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Jun 2020 DOI 10.14302/issn.2643-2811.jmbr-20-3402
Stanley Raj A.Corresponding author
Department of Physics, Loyola College, Chennai, Tamilnadu- 600034, India.
This research paper focuses on rainfall variations in Tamil Nadu, India using Wavelet, Linear regression and Artificial Neural Networks model from 2004 to 2017. As the rainfall is the key factor in understanding climate change, the seasonal datasets from 2004-2017 of Tamil Nadu state has been taken for study. The salient feature of this study is the application of Neural Networks and wavelet analysis. It reveals that the rainfall variations are ambiguous that it does not maintain a constant pattern. Wavelet coefficients of multiresolution spectrogram reveals that the intensity of rainfall in each year. Linear regression model divulge the pattern of rainfall followed in every season and the results show that except winter season all other season suffers deficient rainfall. The deficiency of rainfall may be due to different parameters like ElNino or LaNina pattern or global warming. Results showed that all seasons except winter does not maintain consistency in the rainfall variability. Winter season provides the positive slope values of 4.7 and 0.6 for January and February respectively. Moreover Artificial Neural Networks training provides prominent results of Regression value 0.98 which is comparably high with other seasons taken for study.
Dec 2025 DOI 10.14302/issn.2694-2275.jzr-25-5595
S GopalakrishnanCorresponding author
Andipalayam Lake, a freshwater body located in Tiruppur, Tamil Nadu, plays a significant role in sustaining the local ecosystem, particularly through its diverse insect populations. This study aims to document and analyze the insect biodiversity present in and around Andipalayam Lake, focusing on the ecological roles these species play in maintaining the lake’s health. Insects are key components of aquatic ecosystems, contributing to processes such as pollination and nutrient cycling and serving as prey for higher trophic levels. Despite their ecological importance, studies on the insect biodiversity of Andipalayam Lake have been limited, prompting the need for an extensive survey. This research employed a combination of sweep nets, pitfall traps, and light traps to collect insect species over a year, covering various seasons to capture population dynamics and seasonal variations. Water quality parameters, such as temperature, pH, and dissolved oxygen, were monitored to assess their influence on insect diversity. The study identified over 38 species of insects from diverse orders, including Odonata (dragonflies), Diptera (flies), Coleoptera (beetles), and Hemiptera (true bugs). Seasonal variations were observed, with higher species richness during the monsoon period due to increased vegetation and moisture levels. The most abundant species were found to belong to Diptera and Coleoptera, indicating their adaptability to fluctuating water levels. Environmental factors such as pollution from nearby agricultural runoff and urban development were found to negatively affect insect diversity, with a notable decline in sensitive species during periods of increased contamination.
Aug 2021 DOI 10.14302/issn.2576-9383.jhhr-21-3864
Stanley Raj A.Corresponding author
Assistant Professor, Department of Physics, Loyola College, Chennai, Tamilnadu-600034, India.
This paper wishes to address the main concerns of food patterns and food consumption during the epidemic with quantitative analysis from various regions of Tamil Nadu. It was noted that it is more important than natural foods. The current epidemic had a profound effect on the humankind, recognizing the importance of staying healthy is the crucial aspect. In time, further research was conducted on the diet of the Indian subcontinent. Everyone should know about the importance of health and how nutrition contributes to the health and equality of people around the world. The main purpose of this study was to identify the importance of good nutrition and disease prevention.
May 2020 DOI 10.14302/issn.2637-6075.jpae-20-3305
A.J ThatheyusCorresponding author
PG & Research Department of Zoology, The American College, Madurai, Tamil Nadu, India.
Mosquitoes depend on blood meal for the development of their eggs into offsprings. By knowing the biting behaviour of mosquitoes, we may control mosquito-borne diseases and manage the mosquitoe menace successfully. The present study has been designed to study the biting behaviour of the filarial vector, Culex quinquefasciatus Say, in Madurai, Tamil Nadu, India from July to November 2006. This period was selected as mosquitoes are prevalent during this rainy season. Biting was more during September, October and November and the maximum of 28 caught/man/hour was recorded in November. It is predominantly an exophilic biter, but biting was also noticed as maximum inside the house during July in the study. The density of the biting population in the first floor was more than that of the second floor, which indicated the existence of vertical stratification in the biting behaviour of Cx quinquefasciatus.
Feb 2016 DOI 10.14302/issn.2379-7835.ijn-16-924
Arlappa NimmathotaCorresponding author
Division of Community Studies, National Institute of Nutrition (NIN), Hyderabad, Telangana, India.
Objectives: Vitamin A deficiency (VAD) among the rural pre-school children in India is continues to be a major nutritional problem of public health significance, even after the implementation of national vitamin A prophylaxis programme for more than four decades. The aim of the study was to assess the prevalence of vitamin A deficiency among rural pre-school children of South India. Methodology: A community based cross-section study; adopting multi-stage random sampling procedure was carried out by the National Nutrition Monitoring Bureau (NNMB) among rural pre-school children of four South Indian states viz. Kerala, Tamil Nadu, Andhra Pradesh and Karnataka during 2003-05. A total of 35,480 (Boys: 18,216; Girls: 17,264) rural children of 1-5 year age group was covered for this study. Key Results: The prevalence of Bitot’s spot, an objective ocular sign of VAD among the rural pre-school children of South Indian was 0.6% (95%CI:0.5-0.7). Similarly, the proportion of children with sub-clinical VAD was 59.3%, suggestive of a severe public health problem. In general, the prevalence of VAD was significantly higher (p<0.001) among the children of socio-economically marginalized sections of the communities, labourers, illiterate mothers and those residing in the households with no sanitary latrine. Conclusion: The prevalence of clinical and sub-clinical VAD among the rural pre-school children of south India is suggestive of a public health concern. Therefore, rural communities are encouraged to consume diets rich in pre-formed and pro-vitamin A and administer periodic massive dose vitamin A solution to the children of under five for the prevention and control of VAD.