Selenium Essays

Selenium - The Element In 1817, Jöns Jacob Berzelius found out an unknown substance with properties similar to that of tellurium and named it as Selenium, from the Greek word Selene, which denotes goddess of the moon1. Selenium is one of the rarest elements that are found naturally in the earth’s crust. It occupies group 16 (chalcogens) of the periodic table of elements with atomic number 34 and symbol Se. Selenium exists in multiple allotropic forms but only three are recognised. The most stable

The aim of this study is to evaluate the effect of different levels of selenium (Se, Sodium Selenite) on carcass characteristics of Karadi ram lambs. Fifteen individual lambs were randomly allocated to three treatments (5 lambs for each treatment), control group T1 (0 mg Se /kg BW), low level T2 (0.15 mg Se /kg BW) and high level T3 (0.25 mg Se /kg BW) which were put in an empty gelatin capsules and was orally given to the lambs weekly. The results showed that the effect of the different amount

Since the creation of the vegan society in 1944, the population of people who identify as vegan has skyrocketed. Social media apps such as Instagram and YouTube, provide younger generations with the ability to learn more about the vegan lifestyle than ever before. Due to these resources, we can only expect for the vegan diet to become more relevant over time. We also expect that Veganism will make a bigger appearance in the world of politics as the years continue due to the fact that many political

NEED FOR THE PROJECT Selenium (Se) is a chemical element with atomic number 34. It is a nonmetal with properties that are intermediate between the elements above and below in the periodic table. It is an important microelement, exists in small quantity in microorganisms, plants, animals and humans. It is an essential trace nutrient important to humans and most other animals and act as anti-aging, repairing cells, improving human immunity and preventing carcinogenesis but toxicity occurs when taken

Selenium(Se) is a toxic heavy metal ion of environmental significance that is 78.96 g.mol -1 in atomic weight. According to National Institute for Occupational Safety and Health (NIOSH)[1] , recommended exposure limit (REL) for selenium is 0.2 mg/m3.Compared to acetone, selenium is more toxic because RELs of selenium is lower than that of acetone which is 2.38 mg/m3.However,as a heavy metal, selenium is less toxic than its similar which is lead. RELs of lead is 0.050 mg/m3 which means humans are

Introduction Selenium is an essential mineral that can be found as number 34 in the periodic table. Selenium does not only contribute to human body but also in the electricity industry. Humans require and acquire selenium in their daily diets. For some may not know that selenium contributes greatly to the human body. The human body has a recommended dietary allowance and also a tolerable upper intake level of selenium needs. Selenium has significant functions and can be found at different potency

hypothyroidism. We will also see their nutrient content and how they benefit in supporting the health of our thyroid gland. Let us first start with meats, poultry, fish and eggs. 1) Turkey: It is a low fat and high protein meat with excellent source of selenium. Selenium plays a crucial role in regulating thyroid hormone function. Other than this, turkey contains thyroid friendly nutrients like riboflavin (vitamin B2), pyridoxine (vitamin B6), zinc and niacin. These nutrients are required for thyroid hormone

Mercury Is Threatening Grand Canyon High levels of mercury and selenium have been discovered in the Grand Canyon 's fish, algae and bugs, according to NZA Today. The chemical levels were discovered in a study by the U.S. Geological Survey (USGS), and were published in a report in the Environmental Toxicity and Chemistry journal. HOW THE MERCURY IS GETTING THERE Researchers have said that the mercury, aside from being partially the product of air pollution in the region, originates from Lake

that can provide valuable nutrients. Brazil Nuts When it comes to nutrients and minerals that are good for you, Brazil nuts top the list of heart-healthy nuts. They have niacin, copper, vitamin E as well as an important antioxidant called selenium. Selenium improves the absorption and function of vitamins like C that decrease aging of the skin. It boosts testosterone levels in men and helps protect women against breast cancer. It fortifies the immune system, too. While nuts can be high in fat

at 4%. As for inorganic contaminants like Selenium or Arsenic, both were at levels less than average. Studies show that the Arsenic was considered low in this water supply, surely a relief to those drinking the water. I would be terrified if I had found higher doses within the tap. The Arsenic levels were at an average of 1.4ppb and a maximum of 4.4pbb, where the Maximum Contaminant Level Goal (MCGL) was an average of 0pbb to a maximum of 10pbb. The Selenium levels were at an average of 1.0pbb and

calcium and protein. Green Vegetables: Leafy green vegetables, such as collard greens, spinach and kale; tend to be moderately high in calcium and high in vitamin C and selenium. Vitamin C is an essential vitamin for the protection and function of cartilage in the body because it provides cushioning and support for major joints. Selenium, too, is thought to support bone and joint health, because it has antioxidant properties that protect against damage and play a critical role in producing new cells

1.4 EFFECTS OF METALS IN HUMAN 1.4.1 Antimony Overexposure to antimony (Sb) and its compounds can adversely affect the skin, lungs, cardiovascular system and liver. The more significant antimony compound is sulphides and, to a lesser extent, oxides of Sb(III), and combinations with lead, copper, and silver (5). Because antimony is found naturally in the environment, the general population is exposed to low levels, primarily in food, drinking water, and air (most individuals consume about 5 micrograms

linoleic acid(CLA) and 57% higher Omega-3 fatty acids.” Equally important to consider is the iodine and selenium levels. Other studies observed by Kresser shows that Organic meat has “slightly lower iodine and selenium levels, but higher iron and vitamin E levels.” Iodine is given to those with “elevated anti-thyroid antibody levels and hashimoto’s thyroiditis” before they can be given selenium supplements” according to Jeffrey Dach MD. The study being looked at says that “the iodine concentrations

precipitation technique, adding hydrazine hydrate as the precipitating agent at room temperature. Freshly prepared aqueous solution and analytical grade lead nitrate (Pb(NO3)2), neodymium oxide (Nd2O3) and selenium dioxide (SeO2) were used as precursor materials. Initially, 2 g of lead nitrate and 0.555 g selenium dioxide were separately dissolved in 60 ml of double distilled water in three neck flask and stirred for 30 min. Conversion of neodymium oxide into nitrate by adding 2N nitric acid in a water bath

A few situations can trigger the thirst mechanisms, such as consuming high amounts of salty products and low amounts of water. An overconsumption of salty products increase the blood sodium level which eventually signals the body to drink water. Also, inadequate levels of body fluid can cause the mouth to experience a dry sensation because its tissues’ are only exposed to a limited supply of fluid. Lastly, blood loss, sweating, and diarrhea can also signal the body to increase fluid intake through

manganese and copper are essential for bacterial metabolism (3), their intracellular concentrations must be carefully regulated as their imbalances will be detrimental to cellular integrity. Metals like iron, arsenic, copper, chromium, cadmium, selenium, uranium and several other heavy metals pose significant toxicity to bacteria. For example, they promote oxidative stress and produce reactive oxygen species (ROS) that damage DNA causing mutations and maybe cell death, even in smaller concentrations

3 The Salton Sea is the largest lake in California. It covers approximately 343 square miles and has a maximum depth of only 43 feet. The Salton Sea is a salt water lake that was created by accident, when the salt flat known as the Salton Sink was flooded. In the year 1905, heavy rainfall caused several canals off of the Colorado River to swell, which caused water to flood into the Salton Sink, creating the Salton Sea. For a time, the Salton Sea was a popular tourist attraction with many resort towns

Top 10 health benefits of Echinacea Echinacea is a great and useful herb, used by people all over the world to keep a good health condition. From the roots to flower petals, each part of this plant is full of essential nutrients. If you are suffering from cold, flu or coughing, you can use the raw plant or Echinacea tea as a natural home remedy. Here, we will reveal 10 best health benefits of Echinacea at home those can support your health. What Is Echinacea? Echinacea is a flowering plant, local

Alternative milk such as coconut milk don’t have these issues. Coconut milk is rich in vitamins C, B1, B3, B5, B6, E, and minerals such as calcium, iron, selenium, magnesium, sodium, and phosphorus. It has many health benefits including helping to control blood sugar levels and diabetes. Coconut milk also improves digestion and relieves constipation, enhance heart function by lowering blood pressure, supplies

Solar energy is a natural renewable resource that has a huge potential because it can easily supply energy for the whole Earth and will never run out. The sun produces a huge amount of energy in light and heat form. It can be used by humans in several ways, for example in solar heating, photovoltaics, solar thermal energy, molten salt power plants and concentrator solar power technologies. Solar energy can either be used directly or indirectly by first turning it into electricity. Potential The amount