EvolutionEcology Essay Example | Topics and Well Written Essays - 500 words

EvolutionEcology - Essay Example Paper starts with the hypothesis demonstrating mitochondrial DNA as primary tool for investigation of evolutionary diversion among closely related species and development of new approach in terms of PCR-RFLP based rapid and inexpensive techniques to established phylogenitic correlation among different species. They also investigated correlation between two different approaches and indicated that data obtained by two different techniques may not be identical and hence caution must be taken to interpret them. For validation of hypothesis the authors selected four avian sp. found in North America, those having high rate of hybridization namely, Dendroica occidentalis, D. townsendi, D. virens, and D.nigrescens. To investigate above mention hypothesis the first experiment was based on classical RFLP based technique. The total mitochondrial DNA were Isolated and digested with 14 restriction enzymes to obtained band pattern which was subsequently analyzed by David L. Swofford's paup* 4.0d64 program for calculation of Nei-Li distances. Similarly, for sequences based analysis, three genes located on two sites on mtDNA were selected and sequenced, namely 681bp cytochrome oxidase I, and 1074bp ATP synthase8 and 6 genes from 30 representative warbler individuals.

Origanum Majorana Essential oil Research Paper Example | Topics and Well Written Essays - 2000 words

Origanum Majorana Essential oil - Research Paper Example Therefore some essential oils are used in order to fasten the overall recovery process of patients. Origanum Majorana Essential Oil is one of the them which is extracted from herbs; possessing relatively higher sedative, analgesic, anti-spasmodic, anti-fungal, anti-viral, expectorant, stimulant, disinfectant and calming effects (Marjoran, 2011). In this paper only one essential oil is discussed i.e. Origanum Majorana Oil with respect to the treatment of surgical ICU patients. Origanum Majorana is a Latin name for Marjoram which means ‘greater’ not because of some physical or chemical compositions but due to the ancient perception that the use of Origanum Majorana oil can increase lifespan of humans (Marjoram, 2012). This herb belongs to the family Lamiaceae. It has penetrating smell, slightly spicy taste and overall warm nature. Its chemical components include Thymol, Caryacrol, Pinenel, Camphor, Origanol, etc. The Origanum Majorana oil is extracted from its flowers. It is yellow in color and turns brown as it decomposes. It has some distinctive properties which makes it highly applicable for the treatment of surgical patients. These include (Marjoram, 2012): The oil has soothing and calming effect when consumed internally or when applied externally over the body. Its distinctive chemical composition helps in reducing stress. It provides relief to the muscle pain and throbbing. The oil has an ability to deal with the miseries of congestion and common cold. The warm and woody smell of the oil provides relaxation to human senses. Massage of Origanum Majorana releases pain during menstruation. It is also recommended for the treatment of insomnia as it regulates the functioning of nervous system. The oil is extensively used in body massage after sports. It provides warm effect to the body when used in hot bath. Description The Romans have categorized Origanum Majorana as the ‘herb of happiness’ and for the Greeks it was a key source of â⠂¬Ëœjoy to the mountains’ due to its sedative properties and an ability to reduce tension. Surgical patients experience tension before and after the surgery which is a natural phenomenon. However, the tension and emotional imbalance might lead to high blood pressure which can cause problems particularly during and after the surgery. Therefore it is the prime concern of medical professionals to reduce tension and mental stress of these patients. For this purpose several medicines and therapies are used. The application of Origanum Majorana essential oil