Science essays

Multicellular organisms have a number of levels to the organism. The cells within the organism have their own functions and work as a team for the organism to benefit, this makes the cells become dependent on one another. The organisms are in 5 levels to its organisation starting simply and becoming complex. Each of these … Read more

Mathematical reasoning that to nowadays represent more essential to say that verbal reasoning, plays a fundamental role in the development of our life and the progress of humanity. Such area as, social science, physics, management and computer science. But in computing, we need more of a particular branch of the mathematics so called: discrete mathematics. … Read more

Abstract: A wide variety of both inorganic and organic pollutants are presented in the effluents from breweries, tanneries, dyeing, textiles, papers and pulp mills, steel industries and mining operations etc. The pollutants are including oils, greases, plastics, plasticizers, metallic wastes, suspended solids, phenols, toxins, acids, salts, dyes, cyanides and DDT etc., Those are not readily … Read more

The life cycle of a biofilm includes adhesion, aggregation, maturation and detachment or dispersion. The primary step involved in the initiation of biofilm formation is the attachment of small number of free bacterial cell known as planktonic cells, to an animate or inanimate surface with the help of pili and flagella. The attachment of cells … Read more

Pollination is a biological process in plants that involves transfer of pollen grains from the anther (male part) of a flower to the stigma (female part) either of the same flower or of a different flower of the same plant species. This movement of pollen grains from anthers to stigmas is influenced by vectors which … Read more

Estimation of Chlorophyll On 7th, 15th, 30th, 45th, and 60th day, 100 mg of leaves of the plants was weighed and homogenized with 2 ml of 80-% acetone. Then the volume was made up to 10 ml using distilled water. The contents were centrifuged at 5000 rpm for 15 minutes and the supernatants were taken … Read more

RESULT AND DISCUSSION This investigation has been discussed with dyeing industry effluent of various groundwater samples collected from surrounding areas of dyeing industry in and around chellandipalayam at karur district. The physico-chemical parameters such as colour,turbidity,TDS,alkalinity,electrical conductivity, total hardness, calcium, magnesium, chloride, nitrate, COD, iron, copper and chromium, were determined by using the standard procedures. … Read more

## 1.1 Covalent Organic Frameworks The development of porous materials has accompanied the demands of modern society. A large number of porous materials have been designed and synthesized in the past half century. Because of the intrinsic properties of large specific surface area, high chemical stability, and low skeleton density, porous organic polymers (POPs) have … Read more

The oxidative burst in plants is mainly caused by reactive oxygen species (ROS) that are established to have many cellular implications in the cell cycle, such as, programmed cell death, hormone signaling, biotic and abiotic responses, including fruit ripening. Excessive quantities result in stress due to altered redox homeostasis, aberrant cell signaling and massive disturbances … Read more

ABSTRACT Detailed knowledge of the hydraulic characteristics of an aquifer system is very essential for the management of groundwater resources. Conventionally these characteristics are determined through the conventional pumping test method often carried out in water wells. However, there is a dearth of accurate and reliable pumping test data in the study area as carrying … Read more

The mechanical properties of B2 structure (CsCl-type structure) intermetallic compounds, such as the transition-metal aluminides, have attracted much attention due to their high strength, stiffness, high melting temperature, low density and good corrosion resistance for elevated temperature engineering applications [1-5]. But their brittleness at room temperature sharply limits their usefulness. In 2003, a large family … Read more

Benzimidazole is heterocyclic aromatic organic compound formed by the fusion of benzene and imidazole ring. Benzimidazoles and its derivatives represent one of the most biologically active classes of compounds, possessing a wide scale of activities such as antioxidant,1,2 antimicrobial,3-8 antihelmintic,9-11 anticancer,12 antihypertensive,13 antineoplastic,14 anti-inflammatory,15,16 analgesic,17 antiprotozoal18,19 and anti-hepatitis B virus activity;20 and therefore, a number … Read more

Epigenetics are heritable changes in gene expression that are not occupied by changes in the DNA sequence itself. These changes are crucial for key eukaryotic processes of development and differentiation and may help to explain the mechanism by which one tissue is differentiated form another developmentally. Physiological these processes include: the control of gene expression, … Read more

In chapter 3 Studies on comparative growth analysis of different density in Litopenaeus vannamei shrimp culture with biosecure system was discussed . The present study was undertaken at a Queen shrimp farm in keelavaippar, Tuticorin district, Tamilnadu, India (Fig.2). The farm is situated at 9001’45.07’N, 78017’37.14’2 E and 20 KM away from Tuticorin dt. The … Read more

Natural selection causes heritable phenotypic traits to become either more or less common in a population. Individuals with characteristics most suited to the environment are more likely to reproduce and survive. In this base, the human nature always attempts to be perfect during entire life as well. From beginning of life, human enhancement is going … Read more