Science essays

A study by geneticist Dean Hamer proposed that Xq28, a region of the X Sex Chromosome, might play a role in determining whether a man was gay. This idea was suggested more than 20 years ago, the study first being published in 1993.“When you first find something out of the entire genome, you’re always wondering … Read more

***About stimuli-responsive polymers in general Stimuli-responsive polymers, commonly referred to as smart polymers, are materials that undergo significant and abrupt changes to their physical and chemical properties in response to external stimuli. The defining factor in stimuli-responsive polymers is a characteristically non-linear response to external related stimuli, allowing highly specific functionality even with very small … Read more

The art of firework production has been around for many hundreds of years originating from China. There is no definite date but it is generally assumed that what is now referred to as black powder was discovered in an accidental circumstance. (https://www.fireworks.com/fireworks-university/history-fireworks/ accessed on 20th September 2017)  this is believed to be during the song … Read more

Abstract The aim of the study is to determine the effect of clipping on diurnal variation in ureide concentration of xylem sap of pigeon pea plants. Legumes help the poor farmers rise out of poverty as it is the most important source of protein. Field can be fertilized with nitrogen by rotating planting every year … Read more

Introduction Native to many third world countries, specifically concentrated in Africa and Asia, grain legumes, specifically black-eyed peas (Vigna unguiculata) are a large source of protein and oil. As a very valuable food, they yield high value nutrients that are critical to the third world nations’ welfares (Fery, 2002). The presence of pests in these … Read more

In 1961, the scientist Osamu Shimomura was hard at work in Puget Sound, catching sea jellies. During his time in the San Juan Islands, he would catch more than 1 million sea jellies. Little did he know that he was to spark/ignite a revolution in science, that would benefit biological research forever. Shimomura had come … Read more

A.A is the first species. They are more ape than we are today. A.A actually means Southern ape from Afar, which is located in Eastern Africa. There have been over 300 individual discoveries from paleoanthropologists – they have been around for 3.3 – 2.1 million years. All the discoveries were found throughout Ethiopia, Tanzania, and … Read more

Despite how accurate facts can be, experts in any discipline can have problems when it comes to agreeing and possessing the same interpretation. Human beings possess the capacity to analyze facts and interpret them the way they believe it is best for further investigation to achieve results they are striving for. Usually facts consist in … Read more

Chlorine is a common element that people use almost every day in their lives, even if they do not know it. The molecular formula for chlorine is Cl2, however elemental chlorine is not what people actually use on a day to day basis because that would be a greenish-yellow gas that’s extremely toxic to inhale … Read more

Nanotechnology offers the capability to engineer the properties of materials by controlling their size, and this has determined research toward a mass of possible uses for nanomaterials. Metallic nanoparticles exhibition of uncommon optical, thermal, chemical, and physical properties. The reduction of materials’ dimension has noticeable effects on the physical properties that may be suggestively different … Read more

Bipolar Disorder (BD) is a psychiatric disorder that is characterized by mood episodes: mania, depression, and mixed episodes that cycle with vary bouts of euthymia between them (Gold and Einat, 2007). Bipolar I disorder (BD1) is characterized by the onset of manic episodes whereas bipolar II disorder (BD2) is characterized with depressive and hypomania episodes. … Read more

Models of the atom Neils Bohr’s model of the hydrogen atom was developed by correcting the errors in Rutherford’s model. Ernest Rutherford’s atomic model was an scientific advance in terms of understanding the nucleus, however it did not explain the electrons very well, as a charged particle which is accelerating around the nucleus will emit … Read more

Abstract: Sorghum bicolour is one of the most important cereal crops around the world, particularly in Africa which is highly cultivated for dietary staple. For this reason, a good knowledge and usage of this genetic resource in sorghum accessions are very vital for improving the crop quality. Analysis of genetic variability among the accessions will … Read more

Curcumin, a natural yellow-orange polyphenol with low molecular weight is extracted from the rhizome of the herb Curcuma longa (turmeric). In addition to food consumption such as stabilizer in jellies and a natural colorant, this compound has been attracted a lot of attention in the pharmaceutical industry, due to its wide pharmacological application including antioxidant, … Read more