Foreign Scientists and Their Contribution in Chemistry Free Essays

Antoine Lavoisier was born in the year 1743 to a wealthy family and inherited a huge fortune at the age of five after the demise of his mother. A noble man by profession has contributed a lot in both chemical and biological science. Antoine Lavoisier is the first person to term Oxygen and Hydrogen and also was the first one to establish that sulphur is not a compound but an element. We will write a custom essay sample on Foreign Scientists and Their Contribution in Chemistry or any similar topic only for you Order Now He was the first person to determine that air is a mixture of nitrogen and oxygen. His other contribution includes researches in the field of quantitative chemistry. Amedeo Carlo Avogadro† Amedeo Carlo Avogardro was born in Italy in 1776 and his main contribution was in the field of relative molecular mass. He established the relationship between the masses of different gasses at the same volume and their corresponding molecular weights. His more noted contribution was the Avogadro law where he established the molar particle number to be exactly equal to 6. 022 x 1023. â€Å"Niels Henrik Bohr† Niels Henrik Bohr was born in the year 1885 in Copenhagen to a professor of physiology Christian Bohr. Niels Bohr grew up in an atmosphere conducive for academic brilliance. He contributed in the understanding of the atomic structure and the quantum mechanics related to it. â€Å"Robert Millikan† Robert Millikan the American Physicist was born in 1868 has contributed in the field of photoelectric effect and is more famous for his work on the mass of electron and its charge by the charge oil droplet in an electric field method. This contribution played a vital role in the foundation of chemical studies in later years. â€Å"Ernest Rutherford† Read this Practice Test Chem 105 Ernest Rutherford, the New Zealand born (1871) British scientist contributed a lot in chemical studies by discovering the three radioactive particles alpha (positive), beta (negative) and gamma (neutral) rays by passing a radioactive ray through a magnetic field and then categorizing these according to the deflection by positive plate, negative plate and the ones which went through without deflections. â€Å"J J Thomson† J J Thomson the British scientist born in 1856 is attributed for the discovery of electron and its properties. This atomic particle was discovered when he placed the cathode tube in a magnetic field and found that these particles are negatively charged and that each of these had a mass ratio of 1. 759 E8 coulombs per gram. â€Å"Willam Crookes† William Crookes the British chemist born in 1832 used the vacuum tube made by Heinrich Geisslar to discover cathode rays and hypothesized that there are rays which emanated from the cathode and caused the zinc sulphide to fluoresce which he had used as a coating on one end of the tube. Wilhelm Roentgen the German scientist born in 1895 was the pioneer in producing and detecting the electromagnetic radiation within a range of wavelength better known as X rays. These rays were discovered while he was researching the glow produced by cathode ray tube. â€Å"Marie Curie† Marie Curie the French Polish Chemist – physicists was born in 1867 is the pioneer in radioactivity research. She discovered the radioactive particles Uranium and Thorium and later another couple of elements Polonium and Radium and all within the same Pitchblend. â€Å"Enrico Fermi â€Å" Enrico Fermi the Italian born American scientist in the year 1901 is remembered for his contribution to nuclear fission. This was accomplished when he bombarded the Uranium with neutrons. â€Å"James Chadwick† James Chadwick the British scientist born in 1891is attributed for the discovery of neutron. How to cite Foreign Scientists and Their Contribution in Chemistry, Papers

Experiencing Poetry Essay Example For Students

Experiencing Poetry Essay What does this poem seem to be about? This poem seems to be about a break up many years ago. Words: Were the words in this poem difficult or easy to understand? Was there any word or phrase that was powerful to you? Most words were familiar, but for the ones I didnt know I looked them up in the dictionary and got a better understanding of the sentence. Images: Did the poet create strong images? What could you see, hear, smell, taste, or feel? Yes, when we was describing the dew on the window I could see myself looking out the window to cold gloomy morning. I could always feel his pain, the way he describes his heart ache with so much pain. Figurative Language: What poetic devices were used in this poem? What did these poetic devices do for the poem? Did these devices help create imagery or communicate the authors feelings? Every other sentence in the poem had rhyming words at the end. Emotion: What emotion was the author trying to express? The Author was expressing hurt and sorrow, heartbreak Structure: How Is the poem organized (lines, stanzas, etc. )? What Is unique or Interesting about the structure of the poem? Does the poem rhyme? Most of the poem is rhyming, theres only about one stanza. The structure of this poem made me feel his sadness. I not only had a good understand of his emotion but the situation that took place. Meaning: What is the poem saying about life or love? Do you agree or disagree with this message? Explain. Are there any other reasonable ways to interpret this poem? In this poem he Is expressing love as cold, and dark. I agree with his message In the poem he was In love and torn out with heartbreak something happen which ended the relationship. Publication: What kind of magazine or other publication would be the best place for this type of poem is about an ended relationship and someone hurting in the after math. The way the Author describes his broken heart and his look onto love now as cold and shilling. At the end he claims If I should meet thee After long years, How should I greet thee? With silence and tears. His love for her is still there, but hidden deep under sorrow.

Assessments for English Language Learners

Assessing is an influential tool in determining the learning outcome in students. Therefore, it is the responsibility of teachers to utilize the various assessment ways in order to determine the progress of their students. This paper seeks to explain the value of diagnostic, formative and summative assessments for English Language Learners (ELL). It also goes further to summarize the five alternative assessment formats and the importance of each feature.Advertising We will write a custom essay sample on Assessments for English Language Learners specifically for you for only $16.05 $11/page Learn More Diagnostic assessment involves evaluating the individual current knowledge and skills in order to distinguish the appropriate learning program for him. This is particularly important to the English Language Learners since it helps them in assessing of their own self. Another form of diagnostic assessment includes forward looking assessment which helps in ass essment of the individual future events. It is worthy to mention that diagnostic assessment is a form of formative assessment. Formative assessment is done throughout the learning process. Formative assessment involves the activities that are performed by the students and the teachers which results in information that is used as a feed back to improve the learning and teaching process. This type of assessment is usually used by teachers to review their approaches in teaching and also determine the next step of the learner. Formative assessment does not necessarily involve grading of the students but its main aim is to help in learning of the subject (English) (Chappuis, 2005). The formative assessment is characterized by; improved quality interactions in the classroom, students are involved in the learning process, feedback is issued between the students and teachers in order for them to improve on their work and sharing criteria between the students and the teachers. Summative asse ssment involves analyzing the learning outcomes and consequently reporting the outcomes to the parties concerned (Chappuis, 2005). This is usually done at the end of the class, term, course, semester or the end of the year in order to summarize the achievements of the student. Students are normally graded according to their respective performance in the subject undertaken. The most used English language proficiency (EPL) test in the school is ACCESS for ELLs (Stiggins, 2007). ACCESS test is used for assessing communication and understanding of English language among the people who use the language. It has an aim of developing the standards of English language through the test and instructions issued to the learner. The standard of this test is graded according to the performance indicator that has five clusters of grades.Advertising Looking for essay on languages? Let's see if we can help you! Get your first paper with 15% OFF Learn More ACCESS tests have got advantage s in that it is more secure as compared to other shelf tests, ACCESS tests are based on the standards of each country and ACCESS tests emphasizes on English as a social language. However the main drawback of ACCESS tests is that it fails to recognize the knowledge of the student i.e. it fails to assess if the student has comprehended the use of English language. Assessment in classroom can take various different forms (Stiggin Chappuis, 2005). Alternative assessment formats in English Language Learners include; selected response, written response that are extended, performance assessment, personal communication which are direct and portfolios (Freeman Lewis, 2002). Selected response allows the teacher to assess enough information about the learner. This is also helpful to the student since it is easier to use and gives the student an opportunity to choose from the options that are given. Questions that require the selected response form the student are objective. The likely questi ons that need selected response include; questions with multiple choice, matching questions and true or false questions. Written response compels the student learning English to answer the question in writing rather than orally. The student is expected to come up with sentences which try to explain or answer the question that has been asked. Therefore the students need to have sufficient skills in English in order for a good performance. As a result of this, written response which is extended assesses the reasoning capacity of the student and also learning difficulties in students. Performance assessment entails the student capability to handle a given task without the assistance of the instructor or the teacher. The teacher will then assess the efforts of the students and then judge according to the observations. Personal communication which is direct involves both formal and informal interaction between the student and the teacher in an academic setting. This form of assessment is crucial since it helps the teacher to share opinions with the students, helps to find out how much the students have learnt and also boost the morale of the learners through encouragement.Advertising We will write a custom essay sample on Assessments for English Language Learners specifically for you for only $16.05 $11/page Learn More Last but not least there is portfolio as an alternative to assessment formats. Portfolio concerns the various works which has been done by the student which illustrates an improvement in learning. Therefore portfolio is made up of the reflection in the learning process that give the student ability t be responsible of their own learning. It follows that the schools should use the alternative assessment format instead of ELP tests. This is because the alternative assessment format will assess the individual understanding of the English. On the contrary, the EPL tests fail in doing so. The above evidence is sufficient enou gh that standardized testing and language proficiency is not proper in monitoring the progress of the student. It is recommended that schools should use alternative assessment format in recording the advancement in their learning. Reference List Chappuis, J. (2005). Helping Students Understand Assessment. Educational  Leadership, 63(3), 39–43. Freeman, R., Lewis, R. (2002). Planning and Implementing Assessment.  London: Routledge. Stiggins, R. (2007). Assessment Through the Student’s Eyes. Educational  Leadership, 64(8), 22–26. Stiggins, R., Chappuis, J. (2005). Using Student-Involved Classroom Assessment to Close Achievement Gaps. Theory Into Practice, 44(1), 11–18.Advertising Looking for essay on languages? Let's see if we can help you! Get your first paper with 15% OFF Learn More This essay on Assessments for English Language Learners was written and submitted by user Titania to help you with your own studies. You are free to use it for research and reference purposes in order to write your own paper; however, you must cite it accordingly. You can donate your paper here.

My Personal Leadership Vision Example

My Personal Leadership Vision Example My Personal Leadership Vision – Coursework Example Introduction I have a vision of becoming the best person possible when it comes to friendship, team player, a friend, colleague, or citizen. I am passionate to become a leader, and this motivating factor directs my goals towards achieving the dream. The vision has made me choose the following characteristics as the ones for the leader I want to be.My Leadership VisionI would wish to be enthusiastic. I want to be a good leader in future by showing interest and great excitement towards my work or course. Enthusiasm will enable people to respond openly and freely with dedication and passion to me as their leader. I will remain to collaborate closely with my staff team towards achieving the stipulated goals.I anticipate being confident and inspirational. To be able to lead and provide direction as a leader, I will need to appear confident as an individual and in my role as a leader (Adair, 5). Confidence will enable me to inspire others in order to draw out confidence, best efforts and t rust in them to complete tasks however challenging it is.In addition, I aspire to be a trustworthy leader. I will be a leader with exemplary character with utmost importance to others. I would wish, to be honest, trusted, and practice integrity by walking my talks (Adair, 5). Through trustworthiness, I will gain actual authority from respect for my good character as a person who leads my team.In addition, I would also wish to be committed to excellence. In discharging my duties as a leader, I at no time would aspire to be second because that does not lead to success. I will remain proactive to raise the bar as well as maintaining high standards to achieve all round excellence.ConclusionThe leadership vision I have will therefore cover the above features to become not only popular that is admirable to the society. I will, therefore, work tirelessly to develop and strengthen a leadership role.Adair, John E. Develop Your Leadership Skills. 2013. Print.

My Personal Leadership Vision Example

My Personal Leadership Vision Example My Personal Leadership Vision – Coursework Example Introduction I have a vision of becoming the best person possible when it comes to friendship, team player, a friend, colleague, or citizen. I am passionate to become a leader, and this motivating factor directs my goals towards achieving the dream. The vision has made me choose the following characteristics as the ones for the leader I want to be.My Leadership VisionI would wish to be enthusiastic. I want to be a good leader in future by showing interest and great excitement towards my work or course. Enthusiasm will enable people to respond openly and freely with dedication and passion to me as their leader. I will remain to collaborate closely with my staff team towards achieving the stipulated goals.I anticipate being confident and inspirational. To be able to lead and provide direction as a leader, I will need to appear confident as an individual and in my role as a leader (Adair, 5). Confidence will enable me to inspire others in order to draw out confidence, best efforts and t rust in them to complete tasks however challenging it is.In addition, I aspire to be a trustworthy leader. I will be a leader with exemplary character with utmost importance to others. I would wish, to be honest, trusted, and practice integrity by walking my talks (Adair, 5). Through trustworthiness, I will gain actual authority from respect for my good character as a person who leads my team.In addition, I would also wish to be committed to excellence. In discharging my duties as a leader, I at no time would aspire to be second because that does not lead to success. I will remain proactive to raise the bar as well as maintaining high standards to achieve all round excellence.ConclusionThe leadership vision I have will therefore cover the above features to become not only popular that is admirable to the society. I will, therefore, work tirelessly to develop and strengthen a leadership role.Adair, John E. Develop Your Leadership Skills. 2013. Print.

Sport and the Media Essay Example | Topics and Well Written Essays - 250 words

Sport and the Media - Essay Example Furthermore, because of the evolution of the mass media, there is an emergence of sports stars (Raney, 2006). Examples include Tiger Woods, Christiano Ronaldo, David Beckham, etc. These people normally occupy the front pages of newspaper organizations, and other forms of mass media. They are popular because of the media, and as a result, they are able to earn a lot of money from sponsorship deals and agreements. Without such kind of reporting, these sports personalities cannot get the popularity that they have. Furthermore, sports organizations normally get a lot of money, by charging media rights. These are fees that the media pay to sports organizations, for airing their matches. Billings (2011) explains that this money is usually huge, when compared to the gate collections that these sports organizations are able to collect. Based on this fact, sports heavily rely on the media, as sources of revenues, and for advertisements. Without the media, it is impossible for sports to become a multi-billion dollar industry. In as much as sports rely heavily on the media, the media also relies on sports. This is because they are able to attract male viewers, who love sports. Furthermore, newspaper organizations have sports sections, and this helps them to increase circulation, hence revenues (Raney, 2006). Despite the importance of the media, in the industry, there are numerous issues that have arisen. Some of these issues include the quality of reporting by journalists, and their professionalism. Furthermore, controversy exists, on whether journalists are serious about their reporting, or they are motivated by the fun, of being sportsmen. In conclusion therefore, the media plays an influential role in sports management, and it is a source of revenue for sports team. On the other hand, the media also benefits from sports, and this is because it relies on it, for increased sales, and circulation. It is therefore prudent to

Things They carried Essay Example | Topics and Well Written Essays - 500 words

Things They carried - Essay Example Each soldier has personal items that reminded him of life at home. This shows that the war was brutal and death was imminent. The author recounts how he was called to service. He explains how he tried to elope to Canada due to personal conviction that the war was not justified. However, fear of criticism and alienation made him adhere to the call. According to him the war was wasteful and he considers himself a coward for engaging in a war that was not justified, in his own sense. In the war, the deaths of comrades keep reminding survivors of the imminent danger. However, the soldiers are psyched up by their obligation to the country. They try to keep their dead friends alive in their minds by engaging in stories about them. The narrator uses fictional characters to represent real aspects of the war. The main characters are used to perpetrate the themes that the author wants to express. The characters include; Tim O’Brien, Mitchell Sanders, Kiowa, Bob â€Å"Rat† Kiley, Norman Bowker, Henry Dobbins, Curt , Bobby Jorgenson, Lemoned Lavender, Jimmy Cross,   Lee Strunk, Dave Jensen, Azar,. The named characters were members of the Alpha Company. He takes on a narrative format to express various themes that were pertinent in the war. It shows the suffering and hard decisions that soldiers had to make. The soldiers suffer physical and emotional burdens while at war. The theme is manifested symbolically through the heavy loads that they carry. They are perturbed by the status of their family, love relationships, fear and responsibility. For example, Dobbins carries his girlfriend pantyhose, an indication for longing of love. Jimmy carries a map which is a show of responsibility, just to name a few. Death claimed most of his of colleagues and was damaging to the emotions of the soldiers. Truth is another theme that is manifest in the novel. Though the