Science essays

Discuss the key methods of species detection and identification and how/why new emerging molecular techniques are beginning to replace some of these approaches.

Nucleotide excision repair (NER) is a damage repair mechanism that overhauls damage to one strand of the DNA through distorting the DNA helix.  A single-stranded gap is generated by cleaving the damaged site, while the undamaged strand is copied to restore the intact helix for repair (nature.com, 2018).  Typically, the cause of damage to the … Read more

Phase variation is an adaptive process by which bacteria undergo frequent and reversible phenotypic changes resulting from genetic alterations in specific loci of their genomes. This helps in colonization of the host, adaptation to host environments, and evasion of immune responses. The main mechanism of phase variation involves insertion or deletion of polyG or polyC … Read more

Question 1 There are many useful benefits that we can gain from the development of MRI imaging technology. An argument for continuing the research of atomic structure is basically due to the greater understanding of the universe. As we study the interaction of very small particles, we can gain a better understanding to how they work together … Read more

Have you ever thought about thermochromic technology? Well now you will learn about some heat sensitive technology what the benefits are and what it consists of that makes it work.  Thermochromic products have a variety of  uses and may be found in places that may surprise you. First – what is thermochromic pigment is made … Read more

What is the most important organic compound found in Fragrance, and is it better, for our health and the environment, to use natural resources to obtain these compounds, as an alternative to synthetic processes used to manufacture these compounds? Abstract Perfume is composed of a variety of organic compounds, or are derived from them, most … Read more

Discontinuous variation and continuous variation can both be measured, but in different formats. Discontinuous variation normally applies to variations that beings either have or do not have. It can be things such as blood type or being able to roll your tongue. They are hard to measure in a complete range and are often placed … Read more

Theoretically develop a new sampling technique and a new analytical method for the analysis of triclosan on human skin capable of detecting 5 ppb Abstract In this experiment, a novel method of detecting trace amounts of the organic compound triclosan is explored, ideally at a five parts-per-billion (ppb) range. In order to achieve this, triclosan … Read more

Introduction What is professional practice and how does it differ between patient facing versus laboratory based clinical scientists? Is there in fact a difference?  Professional practice is one of the 5 domains of good scientific practice which define the standards and values all healthcare professionals should strive towards. Additionally, professional practice can be further divided … Read more

Abstract In this paper we report the complete mitochondrial genome of Chitala chitala which belongs to the order osteoglossiformes. The complete mitochondrial genome sequence (mtDNA) was determined by Next Generation Sequencing platform Illumina HiSeq 2500.  The genome is 16,381 bp in length, with a standard set of 22 transfer RNAs (tRNAs), two ribosomal RNAs (rRNAs), … Read more

Aims of the study 1) Examination and quantification of environmental samples from piggeries for the presence of hmycobacteria. To develop and apply DNA and rRNA-based methods for the detection of potentially hazardous mycobacteria in the piggery environment. 2) Sequencing (16S rDNA) and typing (RFLP, MIRU-VNTR) of the mycobacterial isolates from porcine origin and compared them … Read more

Joseph Louis Gay-Lussac was born on December 6th, 1778 in Saint-Leonard-de-Noblat. He was the eldest of five children born to a well respected lawyer, Antoine Gay, and his wife Leonarde Bourigner. Antoine Gay, who began the habit of calling his family the “Gay-Lussac’s” to attract care to their family estate neighboring St. Leonard. Since a … Read more

Background Vitamin D3, a fat-soluble steroid hormone known as cholecalciferol, is critical for calcium homeostasis and bone metabolism [1]. Vitamin D3 acts by enhancing calcium absorption and mobilizing calcium from bone, thus helping to build and maintain strong bones and teeth. Endogenous vitamin D is not biologically active, and instead must be metabolized within the … Read more

ABSTRACT The purpose of the study is to investigate Turkish elementary school students’ misconceptions and errors in circle and circle theorems . It is necessary to design specific study to determine and examine Turkish elementary school students’ misconceptions and errors in circle and circle theorems. In this research, elementary students’ misconceptions and errors in circle … Read more