Preimplantation Genetic Diagnosis Essay example -- Fertility Chemistry

Preimplantation Genetic Diagnosis In the United States, an estimated 2.3 million couples are considered infertile [Wekesser, 1996]. This creates a large need for infertility specialists and clinics specializing in fertility treatments. With the quickly advancing field of rep roductive services and the quest for creating better, healthier babies, a new service called Preimplantation Genetic Diagnosis (PGD) is being offered in conjunction with In vitro fertilization. PGD is a procedure that combines In vitro fertilization and genetic screening. In vitro fertilization is a procedure that requires a large time commitment; the entire procedure lasts about four weeks. The woman receives daily injections for seven to twelve days to stimulate the release of her eggs. After she begins to ovulate, the eggs are retrieved by inserting a needle through her vaginal wall. The eggs are then fertilized in a petri dish. After fertilization, the resulting embryos are allowed to mature to the six or eight cell stage. Then with the use of micromanipulation, a technician extracts one cell from each embryo. Polymerase Chain Reaction is then used to produce multiple copies of the cell’s DNA. [Wekesser,1996] Scientists are then able to test for specific disorders once they know the location of the gene that causes the disorder and have developed a test for its presence [Jaroff,1996]. The healthy embryos are implanted or frozen for future use, and the unhealthy e mbryos are d iscarded [Kenen,1994]. This procedure is still being perfected and clinics that perform this procedure are scarce. According to Denise Grady [1995], in the United States there are only seven clinics that perform PGD. Development/History PGD was developed to increase the ... ...se In vitro f ertilization and PGD to eliminate people such as these. Everyone deserves the chance to live and experience all that our world has to offer—good and bad. Life is a beautiful experience References: Grady, Denise. Unnatural Selection. Vogue. October 1995. Holme, Howard. Choose Better Human Genes. Obtained from the WWW: HOLME Jaroff, Leon. Keys to the Kingdom. Time. Fall 1996. V148. N14. Kenen, Regina H. Pregnancy in the Genetic Age. The Network News. July-August 1994. V19. N4. Macer Darryl R.J. Shaping Genes: Ethics, Law and Science of Using New Genetic Technology in Medicine and Agriculture. Obtained from the WWW: MACER Maranto, Gina. Quest for Perfection: The Drive to Breed Better Human Beings. Simon and Schuster: New York, NY. 1996. Wekesser, Carol ed. Reproductive Technologies. Greenhaven Press, Inc: San Diego, CA. 1996.

Poetry Essay

Poetry is a form of literary art and uses particular forms and conventions to suggest alternative meaning in the words and to evoke some emotional responses. There are sound patterns in poetry which create further meaning, such as assonance, alliteration and onomatopoeia. These sound effects have a particular function in a poem. Poems often make heavy use of imagery and word association to quickly convey emotions. [1] Poetry is distinguished from prose because are used some techniques such as rhyme, meter and repetition. The same sounds can convey different meanings and it depends on the context of a poem. Sound patterns can be also discovered in some advertising slogans. In advertisement we have the freedom to change the natural order of the language. It depends on the product and the target group of consumers. The advertising text has to capture the reader’s or listener’s attention. Therefore the natural order of the language is modified, shaped and stylized. One of the most frequently used devices in slogans, catchphrases and article titles is alliteration: Don’t Live a Little, Live a Lotto! 2] The advertising slogans are the most effective means of drawing attention to one or more aspects of the product. In this text we can spot an example of foregrounding. ‘Deviation, which is a linguistic phenomenon, has an important psychological effect on readers (and hearers). If a part of a poem is deviant, it becomes especially noticeable, or perceptually prominent. We call this psychological effect foregrounding’. [3] Most of the writers use the sound of words in such a way that the readers’ attention is immediately engaged. The most common mean which is involved by the writers is repetition. Our attention is captivated and we start analysing the reasons why the writers use it. We can recognise play of sounds : little/lotto. There is also alliteration- the repetition of ‘l’ and ‘t’ sounds. Alliteration refers to tbe repetition of the same or similar consonants. /t/ is a voiceless, alveolar, plosive sound. It is produced without vibrations of the vocal cords, by obstructing the airflow in the vocal tract. /l/ is a voiced, bilateral, retroflex and approximant sound. The vocal cords are vibrating during the articulation and the airstream flows over the both sides of the tongue. When poets construct a poem they carefully choose words for their meanings, connotation and sounds. According to Paul Simpson ‘we make connections between, on the one hand, the physical properties of the sound represented within a text and, on the other, the non- linguistic phenomena situated outside a text to which these sounds relate’[4]. The sound effects of the poetic text are basic to the interpretation of poetry. When a relationship between sound and meaning is obvious, then it can reinforce the significance of a word for speaker and hearer. ‘The way people ‘sound’ their language can, certainly, be an indication of their individual or cultural personalities†¦ Speakers of a different language, from a different culture, might associate different implications with such sounds’. [5] The most critics are interested in the form of the poem and its meaning, and the poet’s message. According to Paul Fussell ‘Poetic forms are like that: they tend to say things even if words are not at the moment fitted to their patterns. As Louis MacNeice has said, â€Å"In any poet’s poem the shape is half the meaning. †Ã¢â‚¬â„¢. [6] Poetic forms refer to different sets of rules followed by poems. The rules describe such ascpects as the meter or rhythm of the poem, the rhyme scheme or the use of alliteration. One of the basic ways in which poetry can be distinguished from prose is the possession of metre. Some critics maintain the idea that the rhythm and metre are the same thing. The difference between both is in the way in which they relate to the whole. The metre is ‘an extra layer of rhythmic structuring’. 7] The rhythm is ‘the apprehension of a series of events as a regularly repeated pulse of energy, an experience which has a muscular as well as a mental dimension’. [8] The following lines aim to discuss the relationship between sound patterns, their function and their contribution towards the meaning a certain poem generates. Attention will be paid to the poem ‘My Last Duchess’, written by Robert Browning. He was an English poet and playwright whose verses of dramatic monologues made him one of the most renowned Victorian poets today. The poem is anthologised as an example of the dramatic monologue, ‘in which an identified character, or person, is the sole speaker: that is, the voice in the poem is ‘playing’ a role as in drama’. [9] The structure and the style of this poem play a significant role. It contains three formal elements – an occasion, a speaker, and a hearer. The words in dramatic monologues not only convey setting and action but also reveal the speaker’s character. The comments which he makes reveal information about his personality and psyche, knowingly or unknowingly. The main focus of a dramatic monologue is the personal information, not the topic which the speaker happens to be discussing. ‘We can see the personality of both poet and speaker in dramatic monologue, and can be aware of them operating as a reflex in the elements of action which is constant picture and vice versa’. [10] Browning defined the poem as a dramatic lyric. It is dramatic because there is an actor in it and performs a scene. However, at the same time it can’t be said that it is a typical lyric poem. The poem appears as one half of a conversation. He is not speaking his thoughts aloud to himself while he is alone. In general poems are written with the ‘full body’ of words and have their own meaning. ‘Meaning is something the reader intuits through the distorting influence of ‘form’, something the writer may choose, but does not necessarily control. ’[11] The goal of Browning is to illustrate a scene. There is a relation between sounds and meanings, the reality which language may represent. In his piece of work Robert Browning uses many techniques – enjambment, a simple rhyme scheme and caesura to convey various characteristics and qualities about the speaker and the situation. Mick Short claims that ‘The basic idea was that poems should enact what they described: ‘the sound must seem an echo to the sense’ (Alexander Pope, ‘An Essay on Criticism’, line 365). Musicality revolves around phonetic and rhythmic effects in particular, and it is thus necessary to be able to do metrical analysis in order to be able to explain important effects in many poems’. [12] ‘My last Duchess’ is written in iambic pentameter in order to imitate natural speech so that the poet is not confused with the persona. Browning’s intention is to imitate natural speech could be to distance himself from the Duke, who is the speaker in the poem.

Jean Piaget s Theory Of Education - 1672 Words

Psychologists Jean Piaget’s and Lev Vygotsky’s contributions to our knowledge about cognitive development and learning, forms the foundations of modern education. Both men’s work was revolutionary for their times, underpinning the transformative shift to a constructivist way of thinking, which emerged as the most significant influence on education of the 21st Century (James Bader, 2002). Piaget, was the first psychologist to investigate the world from the perspective of the child, determining that children and adults had different cognitive processes, while Vygotsky, formed the influential Social-cultural Development Theory. As evident in the example of Mr Gina and Miss Van, despite criticisms, both men’s work and the extensive research†¦show more content†¦Wood et al (1976) found it to be the most effective method of teaching for children when observing mother-child interaction. Furthermore, Palincsar and Brown (1984,1989) in their adoption and application of Vygotsky’s scaffolding, social interaction and use of language in their reciprocal teaching approach, provide support for the theory. Analysis Both Piaget and Vygotsky’s theories are evident within the modern classroom. Mr Gina within his high school classroom, has adopted various practices of Mrs Van primary classroom to engage and improve the learning of his students. These practices are heavily influenced by Piaget and Vygotsky’s theories and their foundations in constructivism, which emphasises the active role of the learner in development. Piaget’s proposed process of cognitive development ‘adaptation’, through equilibrium is evident within the classroom. Adaptation is the process by which we adjusting our ideas and knowledge to new situations through the modification of pre-existing or new schemas (Duchesne and McMaugh, 2016). Mr Gina uses groups of 1-4 students and encourages them to talk, engage and share their opinions even if they are unsure, as well as utilising an independent learning centres on class topics, a reading corner and knowledge space. Within her classroom Miss Van would be employing aShow MoreRelatedJean Piaget s Theory Of Education Essay1248 Words   |  5 Pagesâ€Å"The principle goal of education in schools should be creating men and women who are capable of doing new things, not simply repeating what other generations have done,† (â€Å"Jean Piaget†¦Ã¢â‚¬ ) a wise man once stated. In this paper we are going to go more in-depth into Jean Piaget’s life and how the work of Jean Piaget greatly influenced the field of early childhood education. This paper will include a brief summary of Jean Piaget’s life, a description of his/her major theories or ideas, and how thoseRead MoreJean Piaget s Theory Of Knowing921 Words   |  4 PagesJean Piaget was a developmental psychologist and philosopher from Switzerland. He is known for his epistemological studies with children. He was the first to make a systematic study of cognitive development. Piaget was also the Director of the International Bureau of Education. He was â€Å"the great pioneer of the constructivist theory of knowing.† He was known as the second best psychologist after Skinner by the end of the 20th century. 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According to Jean Piaget â€Å"cognitive development was a repetitive reorganization of mental processes that derived from biological maturation in addition to environmental experiences’’ (McLeod, S. A. (2015). The childRead MoreEducational Methods Influenced By Jean Piaget And Lev Vygotsky800 Words   |  4 Pagesresearch of Jean Piaget and Lev Vygotsky. Both of these men provided influential theories, which had a significant impact on evaluating children’s learning styles and abilities. After years of research and observation, Piaget determined that intellectual development is the result of the interaction of individual and environmental factors. He felt that as a child develops and always interacts with the world around him, knowledge was established. Thr ough his observations of his children, Piaget developedRead Morejean piaget1284 Words   |  6 Pagesï » ¿Jean Piaget Jean Piaget (1896 - 1980) was employed at the Binet Institute in the 1920s, where his job was to develop French versions of questions on English intelligence tests. He became intrigued with the reasons children gave for their wrong answers on the questions that required logical thinking. He believed that these incorrect answers revealed important differences between the thinking of adults and children. Piaget (1936) was the first psychologist to make a systematic study of cognitiveRead MoreInfluential Theorist And Child Development : Who Are Capable Of Inventing New Things? Essay1214 Words   |  5 PagesMrs. Slinger HPC 3OR September 17th, 2016 Influential Theorists In Child Development: Intellect, Jean Piaget (1896-1980) The goal of education is not to increase the amount of knowledge, but to create the possibilities for a child to invent and discover, to create men who are capable of inventing new things. Jean Piaget is an influential theorist in child intellect development. Piaget insights society on the importance of not learning, but thinking, his thoughts/studies give a further