Rearing of prawn larvae for seed production

Rearing the newly hatched prawn larvae is the most demanding of the procedures in hatchery production of seeds. Freshly spawned eggs of the penaeid prawn hatch out into nauplii which pass through protozoea and mysis stages before metamorphosing into post larvae

Effects of algal and animal food combinations on surfacing activity and food utilization in the climbing perch Anabas scandens

A. scandens was fed on five different combinations of the alga Spirogyra maxima and goat-liver. With increasing liver supplementation, the following increases were noted: consumption of food from 31 to 152 cal/g live fish•day, assimilation efficiency from 88 to 98%, production rate from 1.5 to 45.5 cal/g. day and the ef'fu;:iency from 5 to 17%

Effects of algal and animal food combinations on surfacing activity and food utilization in the climbing perch Anabas scandens

A. scandens was fed on five different combinations of the alga Spirogyra maxima and goat-liver. With increasing liver supplementation, the following increases were noted: consumption of food from 31 to 152 cal/g live fish•day, assimilation efficiency from 88 to 98%, production rate from 1.5 to 45.5 cal/g. day and the ef'fu;:iency from 5 to 17%. For culturing A. scandens, supplementation of algal food up to 22% is recommended. To exchange atmospheric air, A. scandens surfaced 432 and 1296 times/day, when fed on 100% S. maxima and 1OO% liver, respectively. The period of elevated surfacing frequency observed in the fish following a meal wa liver-fed individuals

Serum TNF-α in psoriasis after treatment with propylthiouracil, an antithyroid thioureylene

BACKGROUND: Tumor necrosis factor-α (TNF-α) and its receptors play important roles in the development and persistence of psoriatic plaques. The antithyroid thioureylenes, propylthiouracil and methimazole, are effective in the treatment of patients with psoriasis with a significant number of patients showing clearing or near clearing of their lesions after a several weeks of treatment. METHODS: The present study examined the effect of treatment with propylthiouracil, given in a dose of 100 mg every 8 hours for 3 months, on the serum levels of TNF-α in 9 patients with plaque psoriasis. RESULTS: Propylthiouracil therapy did not result in a significant decline in serum TNF-α concentrations. CONCLUSIONS: The findings suggest that the therapeutic effect of propylthiouracil in psoriasis appears not to be related to any change in the concentration of TNF-α but occurs via an anti-proliferative mechanism as we have previously speculated

Woman Entrepreneurship Through SHGs in Tamil Nadu, India

Entrepreneurship development and income generating activities are a feasible solution for empowering women. It generates income and also provides flexible working hours according to the needs of home makers. Economic independence is the need of the hour. Participation in income generating activities helps in the overall empowerment of women. Empowering women through education, ideas, consciousness, mobilization and participatory approach can enable them to take their own decisions, make them selfreliant and self-confident. Although women are taking on important positions in the business sector, they continue to face barriers to their entrepreneurial activities, compared to their male counterparts. Women still have to struggle with their traditional role in order to balance career and household responsibilities. They have to endure negative social value and cultural bias that lead to unfair perceptions about their ability to operate a business and legal constraints also limit the pursuit of economic independence by women

Domination and power domination in a one-pentagonal carbon nanocone structure

Domination is an important factor in determining the robustness of a graph structure. A thorough examination of the graph’s topological structure is necessary for analyzing and examining it for various aspects. Understanding the stability of a chemical compound is a significant criterion in chemistry, which necessitates conducting numerous experimental tests. The domination number and power domination number are pivotal in defining a wide range of physical properties, which include physiochemical properties, thermodynamic properties, chemical activities, and biological activities. The one-pentagonal carbon nanocone (1-PCNC) is a member of the carbon nanocone family and has a structure similar to that of honeycomb networks, which are renowned for their robustness. In this paper, we find the domination number and power domination number of 1-PCNC by considering it as an (m-1)-layered infinite graph

Marine algal flora from some localities of South Tamil Nadu Coast

Marine algae were collected from six localities along south Tamil Nadu Coast namely Tuticorin, Manapad, Tiruchendur, Idinthakarai, Kovalam and Muttam. Maximum number of 56 algal species at Tuticorin and minimum number of 25 species at Muttam were recorded. Totally 98 algae belonging to the groups Chlorophyta, Phaeophyta, Rhodophyta and Cyanophyta were recorded from these six places. The red algae occurred more in number than other algae in all these places

Mitochondria and G-quadruplex evolution: an intertwined relationship

G-quadruplexes (G4s) are non-canonical structures formed in guanine (G)-rich sequences through stacked G tetrads by Hoogsteen hydrogen bonding. Several studies have demonstrated the existence of G4s in the genome of various organisms, including humans, and have proposed that G4s have a regulatory role in various cellular functions. However, little is known regarding the dissemination of G4s in mitochondria. In this review, we report the observation that the number of potential G4-forming sequences in the mitochondrial genome increases with the evolutionary complexity of different species, suggesting that G4s have a beneficial role in higher-order organisms. We also discuss the possible function of G4s in mitochondrial (mt)DNA and long noncoding (lnc)RNA and their role in various biological processes

ASSESSING THE IMPACT ON PEFR AMONG SMOKERS AND PASSIVE SMOKERS–A COMPARATIVE STUDY

Objective: The purpose of this study was to monitor the intensity and difference in Peak Expiratory Flow Rate (PEFR) between smokers and passive smokers. Methods: A total of 1000 participants were enrolled in two groups as smokers and passive smokers who are living closely with smokers. Their PEFR values were measured with Wright’s mini peak flow meter. The influence of smoking on the lung function among smokers and passive smokers were assessed with a suitable statistical test. Results: Among the study participants, most of the smokers were in the age group of 31 to 60 and 31 to 50 in passive smokers. Based on the lung function smokers (31%) and passive smokers (19.2%) were in the red zone, PEFR was decreased in both smokers as well as passive smokers, and the magnitude of decline was higher in passive smoking elderly individuals. The impact of passive smoking was significantly observed in all the categories of smoking history they are living with. Conclusion: Smokers and passive smokers have equally deleterious effects on PEFR. Where passive smoking emerged as the main variable to influence airway obstruction in smokers that caused a greater reduction in PEFR

Agricultural bio-waste recycling through efficient microbial consortia

In India and other countries, rice straw, a byproduct of rice production, is burned in enormous amounts, which contributes to environmental pollution and climate change by releasing greenhouse gases viz., CO2, N2O, CH4, into the atmosphere. This study aimed to accelerate the degradation of this enormous amount of agricultural biomass via microbial inoculants. Four treatments—rice straw (RS), rice straw plus water (RSW), rice straw plus water plus Pusa decomposer (RSWF), and rice straw plus water plus Tamil Nadu Agricultural University (TNAU) biomineralizer (RSWB) were used in the current investigation. The study's findings demonstrated that rice straw treated with microorganisms decomposed more quickly than RS and RSW treatments. According to EDAX spectra of elemental composition, the carbon content of rice straw in the RS, RSW, RSWF, and RSWB treatments was 33.66%, 29.75%, 13.33%, and 20.65% w/w, respectively. The RSWF treatment of rice straw was found to have the highest nitrogen concentration (0.64% w/w), followed by RSWB (0.61% w/w), RSW (0.45%) w/w, and RS (0.43% w/w). Treatments RSWF and RSWB had lower C/N ratios 20.83, and 33.85, respectively, than that RSW (66.11) and RS (78.28). The RSWF and RSWB treatments' porous, distorted, and rough surface structures provided further evidence that both microbial consortia could decompose rice straw more quickly than the RSW and RS treatments. Therefore, the results of this study imply that rice straw could be added to the soil to improve soil fertility for sustainable crop production rather than being burned