19 Interesting Selenium Facts

Selenium is a chemical element found in a wide variety of products. Here are some interesting facts about selenium: Selenium gets its name from the Greek word selene, which means moon. Selene was the Greek goddess of the moon.Selenium has atomic number 34,  meaning each atom has 34 protons. The element symbol of selenium is Se.Selenium was discovered jointly in 1817 by  Swedish chemists Jà ¶ns Jakob Berzelius (1779–1848) and Johan Gottlieb Gahn (1745–1818).Although it is uncommonly found, selenium does exist in relatively pure form, free in nature.Selenium is a nonmetal. Like many nonmetals, it exhibits different colors and structures (allotropes) depending on the conditions.Selenium is essential for proper nutrition in many organisms, including humans and other animals, but is toxic in larger amounts and in compounds.Brazil nuts are high in selenium, even if they are grown in soil that is not rich in the element.  A single nut provides enough selenium to meet the daily requirement for a human adult.English electrical engineer Willoughby Smith (1828–1891) discovered tha t selenium reacts to light (photoelectric effect), leading to its use as a light sensor in the 1870s. Scottish-born American inventor Alexander Graham Bell (1847–1922) made a selenium-based photophone in 1879.The primary use of selenium is to decolorize glass,  to color glass red, and to make the pigment China Red. Other uses are in photocells, in laser printers and photocopiers, in steels, in semiconductors, and in assorted medicinal preparations.There are six natural isotopes of selenium. One is radioactive, while the other five are stable. However, the half-life of the unstable isotope is so long that it is essentially stable. Another 23 unstable isotopes have been produced.Selenium salts are used to help control dandruff.Selenium is protective against mercury poisoning.Some plants require high levels of selenium to survive, so the presence of those plants means the soil is rich in the element.Liquid selenium exhibits extremely high surface tension.Selenium and its compo unds are anti-fungal.Selenium is important to several enzymes,  including  antioxidant enzymes  glutathione peroxidase  and  thioredoxin reductase and the  deiodinase  enzymes that convert thyroid hormones into other forms.Approximately 2,000 tons of selenium are extracted annually worldwide.Selenium is most commonly produced as a byproduct of copper refining.The element was featured in the films Ghostbusters and Evolution.

Leading Organizational Change Essay - 841 Words

This week’s assignment is about the application of leading organizational change. â€Å"Change is a process that makes something different, alters it, or transforms it.† (Howell and Costley 365 - 377) Changes within one’s organization can take a positive effect or a negative effect on that organization; therefore, it is extremely essential that the leaders within that organization take heed to virtually every aspect of the changes taking place in order to ensure quality assurance in one’s organization. â€Å"The leader’s role is tremendously important in guiding change efforts in organizations.† (Howell and Costley 365 - 377) In regards to changes within an organization, specifically within a public or a nonprofit organization, many examples can†¦show more content†¦Although, many positives were developing from Scarbrough’s leadership, several commissioners sought out to prevent every measure he took in his attempts to progress the Commission into the next frontier. The pattern of change Scarbrough exercised was â€Å"continuous or incremental change because it is steadily evolving and accumulates over time† (Howell and Costley 365 - 377) His approach was to plant a seed, nurture it, see to its growth and development, and then share the wonderful fruit it bears with the people. His administration was instrumental in reducing the size of the board of commissioners from 26 to 13 and reforming their roles more so as an advisory board rather than the bosses of the Executive Director, thus making the Governor of Arkansas the direct and only person for the Executive Director to answer to while the board of 13 commissioners’ main focus was to carry out the mission and vision of the Commission in their respective districts that their represent throughout the state. Using Kurt Lewin’s â€Å"Classic Model for Implementing Change†, Scarbrough successfully implemented changes at the King Commission. 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Areas Of Feasibility Free Essays

Also additional members of employee will be hired for the better arrive; trainings Of staff are necessity for the future tourist goers in Mat. Pico De Lord. To ensure the safety and wellness of each tourist Wanderlust Sojourners will help Mat. We will write a custom essay sample on Areas Of Feasibility or any similar topic only for you Order Now Pico De Core to recruit well-trained staff that are capable in giving better quality of services. Following are in line for refinement of service at Mat. Pico De Lord: Proposed Operational Hours: 6:00 AM- Opening hours 4:00 PM- Closing hours Overnight can be done as long as following restriction is being followed such as: 1. Potential hikers can climb the mountain for the allowable closing hours ND go down with the permitted opening hours 2. Weather is also to consider whenever potential hikers would like to do overnight. For the following restriction are to be followed well-trained staff should be hired. Security personnel, trained Tour Guides, and Registrars personnel. Wanderlust Sojourners can make a better Operational system in Mat. Pico De Lord such as; Improvement on accuracy and efficiency of sales, reservations, and accounting of revenues, Improvement of operational efficiency (elimination of repetitive tasks, current information readily accessible). Improvement of guest service (accurate and fast dissemination of guest information) Resources In order for the Mat. Pico De Lord to accommodate the changes it will need additional help to restructure. Since Mat. Pico De Core is a government owned the participation of National and Local Government unit will be a great factor, in need for the management and financing so the proposed project can be effectively executed. Most especially the local government, in the moment the project will gain its profits the Local will be the first hand to get the benefits of the project. Private sectors and Voluntary sponsored are also welcome. For the Government and private sectors to work together both must agreed upon through a variety of mechanisms including contracts and concessions. Marketing For the Mat. Pico De Lord to be well known, Wanderlust Sojourners will design a marketing Strategy that would help Mat. Pico De Core gained potential tourist. Wanderlust Sojourners Will make Mat. Pico De Lord as natural environment with a potential to build a recreational and adventurous experience to its potential tourist. Mat. Pico De Core would also endorse a rare opportunity to the community around it. It will revivalist the industry where in the community will benefit. Mat. Pico De Lord could facilitate coordination and make assistance to the community. While there is widespread public interest I preserving the area’s natural and cultural values. Wanderlust Sojourners will arrange a Marketing Strategy that will promote Mat. Pico De Lord. Wanderlust Sojourners will make Market Development wherein identifying and developing new market segment for current products (market expansion). Wanderlust Sojourners will also use Service Development treated for the modification of services offered. Diversification strategy will also likely to be use through acquiring business outside the site and Mat. Pico De Lord services offered. Use of Social Media (faceable, twitter, instating, and creating official weeping for Mat. Pico De Lord) and Prints Ads (newspaper and magazines) are to be done for the intense promotion of Mat. Pico De Lord to gain more potential tourist. With all of this Marketing Services Wanderlust Sojourners will help Mat. Pico De Lord to target and promote to the right tourists. Market Research The market areas would be defined based on distance from the site. Demographic characteristics for the resident market would be analyzed to provide an indication of support. How to cite Areas Of Feasibility, Papers