Friday, May 22, 2020

Values and its impact on leadership theory and practices Free Essay Example, 4000 words

This will help in critically analysing the impact of values on leadership in terms of theories and practices in the business environment. Avolio (2007) stated that in today’s time, leadership is not only focused on leaders but also on followers, societies and individuals having different mindsets and understanding of the society and leadership. However, one thing that drives leaders and followers is the authenticity in the approach while leading. Harter, et al (2002) stated that authentic leadership is a process that draws positive psychological impact resulting in self awareness and self regulated positive behaviours on the part of leaders and followers. On the other hand Cooper, et al (2005) contradicted the views and opinions of Avolio by stating that authentic leadership is dependent on balanced processing, internal moral perspective, relational transparency and high degree of self-awareness. Sparrowe (2005) believed that values are approaches to understanding of how, when and why people value things that can be related to human psychology and philosophy. Walumbwa, et al (2008) stated that previously, value s were mainly based on the understanding of good and bad often driven by ethics and the notion has changed drastically. We will write a custom essay sample on Values and its impact on leadership theory and practices or any topic specifically for you Only $17.96 $11.86/pageorder now However, in today’s world values are mainly driven by psychology, sociology and economics. Avolio (2007) believed that values are mainly driven by moral principles forming certain degree of assumptions that often get strengthened with the notion of right and wrong. Sparrowe (2005) believed that the notion of right and wrong cannot be ascertained considering the fact that what may be right for some can be wrong for others and vice versa. In terms of leadership, it becomes important to discuss different theories and relating them with the perception of people in terms of values. Every leadership theory is different in terms of impact and acceptance and with different set of values, it is but obvious that values impact and influence leadership style in terms of theories and practices. The next part of the discussion presents a number of leadership theories along with relating them with the concepts of values to identify the relationship between values and leadership. An Overview of Leadership Theories Avolio, et al (2003) stated that values are based on personal understanding of phenomenon and societies that are often driven and affected by situations. In the context of leadership, it was assumed that leadership is based on personal attributes and characteristics differentiating between the leaders and followers.

Saturday, May 9, 2020

Superstition in The Adventures of Huckleberry Finn by Mark...

In the novel The Adventures of Huckleberry Finn by Mark Twain, the theme of superstition is obviously portrayed in both views of Jim and Huck. Huck shows his beliefs in superstition throughout the entire novel, but especially in the beginning. Between Huck And Jim, Jim is by far the most superstitious. Huckleberry Finn is superstitious out of terror, while Jim is superstitious out of beliefs and his education. Huck and Jim have different point of views on how they see superstition. Jim, is Huck’s best friend on the long journey down the Mississippi, who seems to be more superstitious. Though Huck seems to believe things out of horror, Jim is superstitious because of his beliefs and experiences over time. This may be because of his†¦show more content†¦Huck began to believe in this superstition when the snake bit Jim in the heel and things began to go down hill. Jim is superstitious to the point where it is almost ridiculous where as Huck is more rational and trusts w hat he knows. Through out this novel, Huck and Jim show there ways of superstition. They both have different beliefs. Huck only believes that when he uses his superstition it is only for a good reason. However, Jims superstition is very strong and cant live without it. In chapter 1, Huck shows he is superstitious when he flicks the spider off his shoulder, it ends up falling in a candle and lighting it. Huck then stood up and went back in his tracks three times and crossed his breast every time. Huck then tied up a little piece of his hair with a thread to keep the witches away, â€Å"Pretty soon a spider went crawling up my shoulder, and I flipped it off and it lit in the candle; and before I could budge it was all shriveled up†(3). This makes Huck’s view of superstition very visible. Huck tends to believe things out of fear when something awful is about to happen. Like for instance, in chapter 4, Huck wants to throw salt over his shoulder because he thinks that some of the bad Luck will stop following them. During this, Miss Watson, his owner, was there to stop him and tell him that it wont help him one bit, â€Å"One morning I happened to turn over the salt-cellar at breakfast.Show MoreRelatedSuperstitions in The Adventures of Huckleberry Finn by Mark Twain851 Words   |  3 PagesSuperstition In Huckleberry Finn multiple instances of superstitions arise and seem to be engraved in the culture, even the most utmost examples being rarely questioned and continually passed on from generation to generation like a hand-me-down. In modern society, superstition is one big mind game. Eventually, enough people are affected by these notions that they become evidence for others. In both modern day and in the late 1800s when the story of Huck Finn took place, superstition has been usedRead MoreMorality in The Adventures of Huckleberry Finn Essay717 Words   |  3 PagesAmerican author Mark Twain was one of the most influential people of his time. Twain is perhaps best known for his traditional classic, The Adventures of Huckleberry Finn, a novel about an adventurous boy named Huck Finn as he traverses about on the Mississippi. Under first impressions, Huckleberry Finn would be considered nothing but a children’s tale at heart written by the highly creative Mark Twain. However o ne interprets it, one can undoubtedly presume that Twain included personal accounts withinRead MoreThe Main Themes of The Adventures of Huckleberry Finn by Mark Twain796 Words   |  4 Pagesattempting to find a plot in it will be shot.† This quote is from Mark Twain at the beginning of The Adventures of Huckleberry Finn and it shows Mark Twain’s humor, while also setting the tone for the book. This book was published in the 1880’s, which was around twenty years after the civil war, but it showed there were still signs of discrimination against the African Americans. 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There are themes of racism and slavery, civilized society, survival, water imagery, and the one I will be discussing, superstition ( SparkNotes Editors). Superstition is a belief or practice resulting from ignorance, fear of the unknown, trust in magic or chance, or a false conception of causation (â€Å"Merriam-Webster†). Superstition was a very popular theme in Huckleberry Finn that you sawRead MoreThe Adventures Of Huckleberry Finn By Mark Twain1648 Words   |  7 Pagesfeel that you, too, can become great.† (Mark Twain ). Mark Twain rejected romanticism by saturating it with his superstition. By rejecting romanticism, Twain was establishing himself as a writer of the realism movement. Mark Twain was a skeptic about religion, and had especially harsh criticism of extreme evangelical Christians. Adventures of Huckleberry Finn is one of the most prominent representations of Mark Twain s Realism. Adventure s of Huckleberry Finn is about a neglected 13-year old, whoseRead MoreHuck Finn: Racist or Not Racist?760 Words   |  4 PagesMark Twain went against endless amounts of criticism about his racist’s comments in his novel The Adventures of Huckleberry Finn. The character of Jim is demeaning to African-Americans as he is portrayed as a foolish, uneducated, black slave. The â€Å"n† word is also used in the book describing him and many other African-American characters in the story. However, some see this book as anti-racist and believe that the use of racist’s comments is not racist at all. Those who think that are mistakenRead MoreA Brief Note On Book The Adventures Of Huckleberry Finn 1310 Words   |  6 PagesSarah Jane Reshetiloff Mr. O’Hearn Honors British Literature 26 September 2015 Social Satire in The Adventures of Huckleberry Finn Mark Twain’s novel The Adventures of Huckleberry Finn is a masterful social satire that demonstrates the awakening of a young, adventurous boy living in a culture of slavery. He uses humor and an unreliable narrator to convey social satire in the novel to reflect the flaws of society toward in the antebellum south. The novel was published in 1884, just after slaveryRead MoreThe Adventures Of Huckleberry Finn Is, Indeed, A Magnificent1154 Words   |  5 PagesThe Adventures of Huckleberry Finn is, indeed, a magnificent piece of work. Having said that, Mark Twain wrote this book with qualities that, without a doubt, classify it as a regional text. Twain illustrates specific features of the South such as geography, culture, dialect and characters, which, in turn, aid in adding flare to this notable style of writing. Twain captures the South remarkably through his depiction of the geography in a specific region, which in this case is the Mississippi RiverRead MoreMark TwainS The Adventures Of Huckleberry Finn Is More1915 Words   |  8 PagesMark Twain s the Adventures of Huckleberry Finn is more than just a condemnation of pre-civil war society and its justification of slavery. Twain also uses the novel to challenge the validity of superstition. The main characters, Huckleberry and Jim, are mere marionettes for Twain to express his censure through; he mocks them with their own fears and distortion of superstition. Twain’s representation of superstition throughout the book is indicative of his own thoughts towards the subject. The

Wednesday, May 6, 2020

Cell Biology Meiosis and Mitosis Free Essays

Cell Biology (CP8121) Experiment 2: Observing Mitosis and Meiosis on cell specimens (Formal report) Name: Wong Chung An Class: DMLS/FT/1B/02 Admin number: P1138687 Summary This experiment aims to observe mitosis and meiosis on cell specimens. It involves the modelling of the stages of meiosis and also the staining procedures to identify mitosis in onion root tip. There are two parts to the procedure of the experiment whereby the first is staining and observing mitosis in onion root tips and the second being observing and comparing mitosis between whitefish blastula and onion root tip. We will write a custom essay sample on Cell Biology Meiosis and Mitosis or any similar topic only for you Order Now The results are that the five stages of mitosis have been observed and sketched, together with a comparison of telophase in plant and animal cells. The difference between the two types of cell division mitosis and meiosis has also been recorded. The conclusion is that all the objectives of the experiment have been met and it is recommended that the mitotic spindle be stained for a more complete picture of the various stages of mitosis. 1) Introduction It is important that the experiment is carried out so as to differentiate between the two types of nuclear division, mitosis and meiosis. Mitosis is a process mainly for the growth and replacement of somatic cells and it involves the replication of chromosomes which results in having two daughter cells each same as the parent nucleus. On the contrary, meiosis is for the production of gametes which is essential for an organism’s reproduction and it comprises of two successive nuclear divisions which results in the production of four haploid cells. Mitosis: A process which replicates chromosomes exactly so that each of the daughter cells contains identical information. The process of mitosis involves five stages. The five stages are: Interphase, Prophase, Metaphase, Anaphase and Telophase respectively. Meiosis: A process whereby two successive nuclear divisions will produce four haploid cells. There are two rounds of cell division in meiosis, mainly meiosis I and meiosis II. Meiosis I is identical to that of mitosis whereas meiosis II is a round of reductional division. The process of meiosis has allowed for an escalation of genetic variations because of the crossing over of the genes. This process is crucial as it produces half the number of chromosomes as per the human sex cells. For humans, every gamete contains 23 chromosomes and fertilisation of an egg by a sperm will restitute the diploid number of 46 chromosomes 2) Objectives * Learn a staining procedure to identify mitosis using onion root tip. * Compare and contrast mitosis in plants and animals. * Compare and contrast stages of mitosis and meiosis * Model stages of meiosis. 3) Procedures (a) Preparation and observation of onion root tip slide ) An onion root tip was obtained and the first 1-3mm of its root tip was cut off using a scalpel. The root tip was then placed at the centre of a clean slide using a forceps. 2) Then, the root tip was covered with 2-3 drops of 1N HCL solution and then placed over the hot plate for 3-5 seconds using a slide holder. 3) Without touching the root tip, the excess acid was then blotted off using a paper towel. 4) After which, the root tip was then covered once again, this time in 3-4 drops of 0. 5% Toluidine Blue solution. 5) The excess stain was blotted off and a cover slip was added. ) To spread out the stained root tip for visualisation, the slide was placed in the middle of a folded paper towel and applied pressure upon by placing the thumb directly above the cover slip and having it gently pressed on against a lab bench. 7) The slide was examined on low power on the microscope and embryonic cells which are square-like were looked for. 8) Once the mitotic figures were found, the microscope was switched to a higher power. 9) The phases that were seen were sketched on the datasheet. (b) Observation of prepared slides: Mitosis in Onion root tip Whitefish blastula ) The prepared slides provided were reviewed by using a low power (10x) to locate the cells and high power (40x) to change the focus. 2) This time, instead of sketching the different phases of mitosis in onion root tip, the differences in mitosis between the plant and animal cells were rec orded. 4) Results and Discussion *For the results, refer to the datasheet archived under appendix at the end of the report. 5. 1 Explanation and reasons for results The results of the datasheet have shown that all the five main phases of mitosis can be observed. This can because of several reasons such as the choice of use of onion root tips, flattening of the onion root tips, addition of hydrochloric acid and 0. 5% Toluidine Blue solution. Onion root tips are easy to grow in large numbers and the cells at its tips are actively dividing, thus many of its cells will be in different stages of mitosis. The reason for using the last 1-3mm of the root tip is because it is where the region of cell division (meristem) is located. This is the region whereby cells are dividing but not significantly increasing in size. The flattening of the onion root tips allows the chromosomes of each individual cell to be observed. The hydrochloric acid added, plays a part in fragmenting the root tissues by weakening and removing the bonds between cells so that each cell will not be attached to the other cell, obstructing the observation. Toluidine Blue solution acts as a colorant, giving a blue colour to the chromosomes and so that it is more easily spotted and examined. 5. 2 Evaluation of the results achieved Interphase: The interphase is the phase in which the cell is involved in metabolic activity and fulfilling its role as part of a tissue in the body. During this phase, the DNA duplicates as it is preparing for mitosis and the chromosomes are cannot be easily distinguished. However, the nucleolus, a dark spot may be visible instead. Prophase: During the prophase, the chromatin within the nucleus will begin to condense and become visible in the microscope as chromosomes. Then the nuclear membrane will dissolve, signalling the start of Prometaphase. After which, proteins would then attach to the centromeres, creating kinetochores in which the microtubules will attached to. The chromosomes would then start moving. Metaphase: The chromosomes would then be aligned by the spindle fibres at the equator of the spindle. This alignment helps to ensure that in the anaphase, when the chromosomes are separated, each of the new nucleuses will receive a copy of each of the chromosomes. Anaphase: In the anaphase, the two sister chromatids of each chromosome at the centromeres would start to separate. This movement is due to the shortening of the kinetochore microtubules. Telophase: The two sets of daughter chromosomes would arrive at the two poles and the mitotic spindle would disappear. A nuclear envelope would start to form around each set of daughter chromosomes at both ends of the poles. Cytokinesis may have also begun during this phase depending on each individual cell. 5. 3 Descriptions of problems encountered The problem that we have encountered during this experiment was during the preparation of the first slide of onion root tip. The amount of toluidine blue solution may not be enough as only a few of the cell nucleus have been stained. This makes it difficult for us trace the various stages of mitosis. This problem is resolved however by making a new set of the onion root tip slide. 5) Conclusions and Recommendations In conclusion, the experiment was a success and all of the objectives of the experiments were met. All five stages of mitosis have been observed and a comparison of mitosis between plant and animal cells has been made. Although we did not get to observe the stages of meiosis, we have modelled the stages of meiosis and acquired knowledge of it. In my opinion, I would recommend that the mitotic spindles of the onion root tip cells be stained as well. This would allow a more in depth observation of mitosis and instead of solely looking at the movement of the chromosomes and the nucleus, we could observe the reason behind the movement of the chromosomes. 6) Appendix http://www. marietta. edu/~biol/introlab/Onion%20root%20mitosis. pdf Clark, D. C. and P. M. Mathis. (2000). Modeling mitosis and meiosis: a problem-solving activity. The American Biology Teacher Mickle, J. E. 1990. A model for teaching mitosis and meiosis. The American Biology Teacher Carmen Chan Yuen Man (2011). Cell Biology lecture notes (CP8121). Singapore Polytechnic. How to cite Cell Biology Meiosis and Mitosis, Papers