According to Darwin Essay Example for Free

According to Darwin Essay 1) Fossil fuels were formed a very long time ago from plants and animals that were buried and with time changes into oil, coal and natural gas. They are essentially not part of the carbon cycle. However when man burns fossil fuels, they upset the balance of CO2 concentration in the cycle as they released a lot of amount of CO2 in the atmosphere. With the abundance of CO2 in the atmosphere, all are not used for the photosynthesis and respiration sustained by the cycle. The excess CO2 contributes to the greenhouse effect, a condition where more heat is trap in the earth because of too many CO2 in the atmosphere. As a result, global warming occurs (Gautier, 2008, pp. 78-79). 2) All four species of lizards that are closely related can become separate species because of the process of active radiation. In an island, these four lizards may live and utilize in different microenvironments of different habitats. There is a rapid speciation of these lizards proceeding to the phenotypic adaptation to divergent environments. See more: Social process essay According to Darwin in 1842, phenotypes of species ‘fit’ the divergent environments that they inhabit, and hence that species have â€Å"been taken and modified for different ends† (qtd Schluter, 2000, pp. 10-12). 3). The DNA (chromatins) are not visible in the interphase because by then they are still uncoiled, diffused and disorganized in the nucleus. What happens at this time is that genetic information is transcribed to produce RNA. They appear as dots or grains or thin long strands. However to facilitate separation of DNA, chromosomes are duplicated in the S phase. To prepare for mitosis, the chromosomes condense; condensin (an elongated complex of several proteins) mediates then binds and circles DNA into a single chromatid at multiple spots, twisting the chromatin into a variety of shorter and thicker coils and loops. This made the DNA visible in the microscope (Hartl Jones, 2005, pp. 75-76). 4). The four daughter cells produced in meiosis are unique resulting from a variation of two processes known as independent segregation of the chromosomes and crossing-over. In the independent segregation at the end of Meiosis I, two very different intermediate cells are produced. Crossing-over then takes place in meiosis I which affords time and opportunity for the random exchange of information from homologous pairs of chromosomes resulting to the unique combination of alleles. These are the reasons why four daughter cells have completely different set of genetic information (Hartl Jones, 2005, p. 115).

Self Taught Guitarist :: Music Musician Instruments Essays

Self Taught Guitarist I believe that every person has the ability to learn how to play an instrument. With enough practice, dedication and the right information, which is easy to asses via the web, you can accomplish almost anything. There are many web sites dedicated to all guitar playing levels. It is just a matter of finding the right one (or ones) for your needs and areas of improvement. Out of most web sites that I researched, there are two that I choose to talk about. These are Guitartricks.com and Cyberfret.com. Both of these websites have very good and extensive information that could keep any guitarist of any level entertained for weeks. One of the websites is also very interactive, meaning that you can post your own music on the web site for others to see and play. The topics range from beginner’s lessons to scales and even reading music! Both websites use tablature to show their audience different compositions, practice exercises and other user postings. Tablature is a series of six lines which represent the six strings on the guitar. Each line has a specific note which are E, A, D, G, B, and E from the bottom up. Then, numbers are placed on the lines to represent when and where your fingers have to be on the frets. The numbers represent the frets (frets are like keys on a piano) on the guitar and range from one all the way to twenty-two or twenty-four, depending on the guitar that you use (some guitars have twenty two frets and some have twenty-four). A very good aspect of Cyberfret.com is that it uses the treble clef as well in many of its lessons. The treble clef is a more professional and sophisticated way to write music. It is how Beethoven and J.S. Bach kept their countless inventions and masterpieces alive over so many years. Nevertheless, both of the websites focus on tablature in their beginnerâ€⠄¢s section, as well as tuning and naming all the parts of the guitar. Their content for a beginning audience is excellent and would facilitate anyone’s first understandings of the mechanics of the guitar. Since every person has their own style of music, the first thing I took into consideration when evaluating Guitartricks.com and Cyberfret.com was their assortment of styles to research.

Health and Safety act 1974 Essay

The Health and Safety at Work etc Act 1974, also referred to as HASAW or HSW, is the primary piece of legislation covering occupational health and safety in the United Kingdom. The Health and Safety Executive is responsible for enforcing the Act and a number of other Acts and Statutory Instruments relevant to the working environment.Covers: †¢ safe plant and systems of work; †¢ safe methods for the use, handling, storage and transport of articles and substances; †¢ necessary information, instruction, training and supervision; †¢ a safe and well-maintained workplace, including safe access and egress; †¢ a safe working environment with adequate welfare facilities This legislation requires employers to prepare, and maintain up-to-date, a statement showing the policy on safety and the organisation and arrangements put in place to ensure the general policy is carried out. The employer must ensure that all employees are aware of the policy and any revision. Manufacturing organisation: Tasty Bake- Tasty Bake is one of the UK’s leading sausage manufacturers. Cardamon Pod- Cardamon Pod is a small business offering a wide range of delicious savoury and sweet samosas to both public and private clients throughout the UK and overseas. Service provider: Chef per Tutti – offering a private chef service. Planglow Ltd. – Planglow is a recognised market leader for the supply of branded paper-based products to the catering industry. Main causes of injury: †¢ Manual handling and lifting – especially lifting heavy and awkward loads and pushing wheeled racks †¢ Slips and trips – mostly due to wet or contaminated floors †¢ Falls from height – off ladders, stairs, work platforms, plant and vehicles †¢ Struck by an object (eg hand knife) or striking against an object (eg plant) †¢ Exposure to harmful substances and hot objects, eg splashes/vapour from cleaning chemicals, contact with hot equipment Electricity at work regulations 1989 This legislation places legal implications on employers to ensure the safety of electrical devices in the workplace. Covers: †¢ Ensure all persons working on or near electrical equipment are competent, to prevent danger and injury †¢ Maintain electrical systems in safe condition †¢ Carry out electrical work safely †¢ Ensure equipment is suitable and safe to use in terms:- – of strength and capability – of use in adverse or hazardous environments e.g. weather, dirt, dust, gases, mechanical hazards, flammable atmospheres, etc †¢ Ensure effective insulation of conductors in a system This legislation is requires precautions to be taken against the risk of death or personal injury from electricity during work activities. Manufacturing organisation: McKinlay Electrical Manufacturing Co. Ltd. Elkay Electrical Manufacturing Company Ltd Customer providers: Southern Electric E-on Main hazards: †¢ Electric shock †¢ Electric burns †¢ Fires of electrical origin †¢ Electric arcing causing â€Å"Arc Eye† †¢ Explosions initiated or caused by electricity Display screen equipment regulations 1992 The Health and Safety (Display Screen Equipment) Regulations 1992 aim to protect the health of people who work with DSE. The Regulations were introduced because DSE has become one of the most common kinds of work equipment. Covers: †¢ Assess display screen equipment workstations and reduce any risks which are discovered. †¢ Make sure that workstations satisfy the essential safety requirements which are set for the display screen, keyboard, desk and chair, working environment, task design and software †¢ Plan display screen equipment work so that there are breaks or changes of activity †¢ Provide information and training for display screen equipment users This legislation requires: †¢ Employers have to carry out a ‘suitable and sufficient analysis’ of all workstations provided for use by users or operators – in other words, a risk assessment. †¢ DSE workstations must meet the Schedule of Minimum Requirements. †¢ Employers have to ensure that users get periodic breaks or changes of activity away from the display screen equipment. †¢ Employers have to provide information to users and operators on risks identified by the assessment, steps taken to reduce the risks, and, where appropriate, the systems for breaks and for eyesight tests. Manufacturing organisation: Computer manufacturers: Dell, Asus. Customer providers: Shops – Asda, Tesco, Boots, they are using screen equipment. Accountant assistant job – working with computers. Risks: †¢ Upper Limb Disorders – aches and pains in the hands, wrists, arms, neck, shoulders, back etc. †¢ Visual Difficulties – eyes can become tired and existing conditions can become more noticeable.

Dorothea Dix Quotes

Dorothea Dix, an activist who served in the Civil War as Superintendent of Female Nurses, also worked for reform of treatment for the mentally ill. Selected Dorothea Dix Quotes †¢ I think even lying on my bed I can still do something. [attributed, possibly incorrectly] †¢ The tapestry of history has no point at which you can cut it and leave the design intelligible. †¢ In a world where there is so much to be done, I felt strongly impressed that there must be something for me to do. †¢Ã‚  I come to present the strong claims of suffering humanity. I come to place before the Legislature of Massachusetts the condition of the miserable, the desolate, the outcast. I come as the advocate of helpless, forgotten, insane men and women; of beings sunk to a condition from which the unconcerned world would start with real horror. †¢ Society, during the last hundred years, has been alternately perplexed and encouraged, respecting the two great questions — how shall the criminal and pauper be disposed of, in order to reduce crime and reform the criminal on the one hand, and, on the other, to diminish pauperism and restore the pauper to useful citizenship? [Remarks on Prisons and Prison Discipline in the United States] †¢Ã‚  Moderate employment, moderate exercise, as much freedom as is consistent with the safety of the patient, and as little apparent anxious watchfulness with cheerful society should be sought. †¢Ã‚  This sentiment of satisfaction in being useful, the guardian of the insane cannot too carefully watch over and foster since it conducts to self-control and self-respect. Incurables who are able and willing to work, are much more contented and enjoy better health when employed. †¢ If County Jails must be resorted to for security against the dangerous propensities of madmen, let such use of prison-rooms and dungeons be but temporary. †¢Ã‚  I admit that public peace and security are seriously endangered by the non-restraint of the maniacal insane. I consider it in the highest degree improper that they should be allowed to range the towns and country without care or guidance; but this does not justify the public in any State or community, under any circumstances or conditions, in committing the insane to prisons; in a majority of cases the rich may be, or are sent to Hospitals; the poor under the pressure of this calamity, have the same just claim upon the public treasury, as the rich have upon the private purse of their family as they have the need, so have they the right to share the benefits of Hospital treatment.   †¢ A man usually values that most for which he has labored; he uses that most frugally which he has toiled hour by hour and day by day to acquire. †¢ While we diminish the stimulant of fear, we must increase to prisoners the incitements of hope: in proportion as we extinguish the terrors of the law, we should awaken and strengthen the control of the conscience. [emphasis in original] †¢ Man is not made better by being degraded; he is seldom restrained from crime by harsh measures, except the principle of fear predominates in his character; and then he is never made radically better for its influence.