Dental Fillings and Mercury Poison essays

Dental Fillings and Mercury Poison essays When you go to the dentist to get a cavity filled, the dentist will usually use an amalgam filling. The reason most dentists use this and do not give you an option is because they are very much cheaper than your other choices. Theses amalgam fillings may be cheaper but they can really cause you some health problems. In most, but not all cases the mercury in the fillings will leach into your body and cause major problems. In my case, they were causing me to have seizures. After the mercury was removed from my body, my seizures ended, and my overall health was better. I was not tired or moody as I was before. I feel like a whole new person. Many of people have come to me and said that they could tell on my face and the way I talk that I have changed. Many studies are being done to see what all health problems the amalgam fillings are causing. A study done in Canada states that "the dental mercury released by amalgam dental fillings did, in fact, present a health risk, and a tolerable daily intake (TDI) was recommended to be .014 micrograms of mercury per kilogram of body weight per day." The report also recommended limits to the number of fillings a person should have; 1 filling in toddlers, one filling in children, three fillings in teens and four fillings in adults and seniors. The mercury that is swallowed with saliva can be as much as hundreds of micrograms per day for individuals with a large number of amalgam fillings. A study was done on sheep, pregnant ewes, and their unborn babies, by the University Of Calgary School Of Medicine. They placed amalgam fillings in the chewing surface of molar teeth and traced into body tissue. They found within two days that mercury was found in the maternal blood, amniotic fluid, and fetal blood. Mercury was also found in the tissues of the mothers and babies. The levels of mercury in the tissue continued to rise throughout the study. A study done on pregnant monkeys found to have the ea...

Analogy vs. Homology - Theory of Evolution

Analogy vs. Homology - Theory of Evolution There are many types of evidence that support the Theory of Evolution. These pieces of evidence range from the minute molecular level of DNA similarities all the way up through similarities within the anatomical structure of organisms. When Charles Darwin first proposed his idea of natural selection, he used mostly evidence based on anatomical features of organisms he studied. Two different ways these similarities in anatomical structures can be classified is as either analogous structures or homologous structures. While both of these categories have to do with how similar body parts of different organisms are used and structured, only one is actually an indication of a common ancestor somewhere in the past. Analogy Analogy, or analogous structures, is actually the one that does not indicate there is a recent common ancestor between two organisms. Even though the anatomical structures being studied look similar and maybe even perform the same functions, they are actually a product of convergent evolution. Just because they look and act alike does not mean they are related closely on the tree of life. Convergent evolution is when two unrelated species undergo several changes and adaptations to become more similar. Usually, these two species live in similar climates and environments in different parts of the world that favor the same adaptations. The analogous features then help that species survive in the environment. One example of analogous structures is the wings of bats, flying insects, and birds. All three organisms use their wings to fly, but bats are actually mammals and not related to birds or flying insects. In fact, birds are more closely related to dinosaurs than they are to bats or flying insects. Birds, flying insects, and bats all adapted to their niches in their environments by developing wings. However, their wings are not indicative of a close evolutionary relationship. Another example is the fins on a shark and a dolphin. Sharks are classified within the fish family while dolphins are mammals. However, both live in similar environments in the ocean where fins are favorable adaptations for animals that need to swim and move in the water. If they are traced back far enough on the tree of life, eventually there will be a common ancestor for the two, but it would not be considered a recent common ancestor and therefore the fins of a shark and a dolphin are considered to be analogous structures. Homology The other classification of similar anatomical structures is called homology. In homology, the homologous structures did, in fact, evolve from a recent common ancestor. Organisms with homologous structures are more closely related to each other on the tree of life than those with analogous structures. However, they are still closely related to a recent common ancestor and have most likely undergone divergent evolution. Divergent evolution is where closely related species become less similar in structure and function due to the adaptations they acquire during the natural selection process. Migration to new climates, competition for niches with other species, and even microevolutionary changes like DNA mutations can contribute to divergent evolution. An example of homology is the tailbone in humans with the tails of cats and dogs. While our coccyx or tailbone has become a vestigial structure, cats and dogs still have their tails intact. We may no longer have a visible tail, but the structure of the coccyx and the supporting bones are very similar to the tailbones of our household pets. Plants can also have homology. The prickly spines on a cactus and the leaves on an oak tree look very dissimilar, but they are actually homologous structures. They even have very different functions. While cactus spines are primarily for protection and to prevent water loss in its hot and dry environment, the oak tree does not have those adaptations. Both structures do contribute to photosynthesis of their respective plants, however, so not all of the most recent common ancestor’s functions have been lost. Oftentimes, organisms with homologous structures actually look very different from each other when compared to how close some species with analogous structures look to each other.

Growth Hormone in Psychological Processes Research Paper - 6

Growth Hormone in Psychological Processes - Research Paper Example Excessive production of growth hormone gets caused by the growth of a benign tumor in the somatotroph cells. This condition gets referred to an adenoma. A tumor of the islets of Langerhans or the lung which produce Growth hormone-releasing hormone can also stimulate excessive production of growth hormone. The growth hormone interacts with insulin through the IGF axis. The liver secretes insulin like growth factor 1- IGF-1, in response to secretion of the growth hormone (Juul & Jens, 2000). The IGF axis interaction is vital in the inhibition of cell death and promoting cell proliferation. IGF-1 is necessary for achieving maximal growth. Gigantism can get more complicated to treat than dwarfism. This is so because some forms of dwarfism get caused by insufficient production of growth hormone. These forms of dwarfism can become rectified by providing the patient with growth hormone (Artwelle & Vislon, 2008). Gigantism, however, results from the overproduction of growth hormone. This can become hard to correct as it is more difficult to place the excess growth hormone in the required normal range. The metabolic rates in a giant also become hyper abnormal, this contributes to a less life expectancy for giants. The pituitary gland gets located in the brain. It is divided into the anterior and posterior lobe. The pituitary gland secretes prolactin hormone, which stimulates the production of breast milk and the control of menstrual periods (Ho, 2011). Prolactin activates the mammary glands to generate milk. During pregnancy, prolactin concentrations rise causing enlargement of the mammary glands. Also produced in the pituitary gland is the hormone vasopressin. Vasopressin also gets referred to as anti-diuretic hormone. This hormone encourages water retention by the kidneys. This hormone works in the kidney’s collecting ducts to stimulate reabsorption of water by the body.

Reflection on conjoint family therapy Essay Example | Topics and Well Written Essays - 500 words

Reflection on conjoint family therapy - Essay Example Indeed some of the purist therapists cannot acquiescence to commence with a session unless the whole family is present. This therapy exists on the premises that the whole family is the client hence anything less than that is underrepresentation. For the family to heal, it is hence essential that the ailing relationships must be present in the room while therapy is conducted, necessitating the presence of the whole family (Satir 1983, p.66). The symptoms of family pain manifest themselves in one member of the family; these then affect the other members in different forms causing the ultimate breakdown. This has been used with considerable success, to deal with problems such as alcoholism where one member’s addiction affects the entire family (Piercy, Sprenkle, Wetchler 1996, p.320,). One of the major advantages of conjoint family therapy is that it helps create a natural environment for children to express themselves in therapy. Young children often appear to have psychological problems, but these are normally reactions to a troubled environment. Bearing in mind that the child’s primary environment is the family, often family problems Cause his /her discomfiture. As such, the family as a unit will have to heal so the child’s problems can be solved Since children are often not very articulate, individual therapy can be intimidating, and they may be overwhelmed by therapy whose cause they may not even comprehend. This will devalue the therapy, creates the impression that there may be something wrong with him/her hence, and as a result create psychological new problem (Kafka, 2012). Besides, it is crucial that the parents support therapists’ work, and if they are not aware of what the child has learnt through therapy, they might reverse the improvements. This can occur inadvertently through their behavior especially if it is the course of the child requiring therapy in the first place. Conjoint

Studying Language Essay Example | Topics and Well Written Essays - 750 words

Studying Language - Essay Example In addition, social variations in the use of dialects exist, the linguistic levels to which these can be applied include vocabulary, idiomacity, grammar and pronunciation. In simple terms, this is the words used, the special meanings and forms they are used in, the way they are place within sentences and how they are spoken. How dialect, or its social variation 'sociolect' is used, depends on the situation a person is in elements of which are described as who, what and where, all of which will impact on the style of language usage. For example, people will often use what they describe as their 'posh' or 'telephone' voice when answering a call. So somebody from Northern Ireland, speaking in a 'casual style' of dialect, may greet a friend or acquaintance with adda boutcha(How are you), will change this to ow're ya doin- still dialectic, but in the 'careful' style when meeting someone new or who they consider superior. There is more attention paid to the use of speech, with the changes in vocabulary, idiom and pronunciation, bearing out the contention that situations influence how speech is monitored. In sociolinguistic terms, shared knowledge of a language by a sufficient number of people creates a dialect. As with many languages, dialects have their own peculiar sounding of words, particularly where vowe ls are concerned. An illustration which shows how this works comes from the East Yorkshire coast. Received pronunciation, or indeed other parts of Britain, will fully round out the vowel sounds in the words 'bonny bairn'. With the flattened vowel sounds of Hull and the East Coast, this becomes something like 'bernie bern' - which takes 2. the issue into the realms of the use of words in dialect. 'Bonny' could be 'beautiful' elsewhere, and of course 'bairn' is 'baby'. The Scots and Irish would sound the 'r', but it is virtually silent in the Hull example. Other examples of different lexical terms demonstrate dialectic differences where one part of the country talks about having dinner, another calls it supper. In American English, a lift becomes an elevator and the police station is the precinct, and so on. The precinct is where shopping takes place in large British cities, but the Americans go to the mall. So it can safely be said that everybody talks in a dialect of some sort, or at least incorporates linguistic elements of regional or social variations into verbal communication, true about all languages, worldwide. One amazing example of Ulster dialectic mystery concerns the sedum plant of the dark, ruby red flowered variety. In Northern Ireland, this is a 'Mullingar Heifer' and it is difficult to imagine what a nat ive of Bristol would make of it. Coupled with dialect, the regional accent is found, which may account for confusion as to differences in definition. Accent is defined (COD, p.6) as . Prominence given to syllable by stress or in some languages, by pitch[...]2. Individual, local or national mode of pronunciation;An accent refers to a more general pronunciation of English and (indeed other languages) and is not specifically applied to traditional dialect words. The different linguistic levels involved with accents are described as Segmental phonemic (units of significant sounds) and Suprasegmental stress, rhythm and intonation. Speaking with a regional accent determines a person's geographical origins,

Marx’s Theory of Alienation Essay Example for Free

Marx’s Theory of Alienation Essay Marx used the ‘theory of alienation† to expose what he claimed as a highly exploitative, unfair social relationship existing in a capitalist system which effectively divides society into two opposing groups. He argued that this unfair social relationship came into being because of the â€Å"concept of private property† which, according to him, refers to a situation where the means of production (such as factories and plants) are owned by private persons. This private ownership of the means of production gave birth to the two antagonistic social classes: â€Å"the property owners [or the capitalists] and the propertyless workers. † (Alienation, n.d.)   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   According to Marx, here lies the first alienation of the workers in a capitalist society. The capitalists own the means of production and the workers have only their labor to sell so that they could survive. Using the plants and factories at their disposal, the capitalists utilize the labor of the workers to enrich themselves by producing â€Å"surplus value† or profit. What worsens the situation for the workers is the fact that capitalists, in order to increase their profit or maximize their surplus value, are disposed to keep wages to the minimum, often barely enough for workers to live a humanely comfortable life. Needless to say, the lower the wages paid to workers, the greater the profit for the capitalists. (Alienation, n.d.) This led Marx to assert that under the capitalist system, the only way to go is for the workers to become poorer and for the capitalists to grow richer. He cited the fact that in capitalist societies, there is an ever increasing number â€Å"in the ‘working poor’ families who remain mired in poverty although every family member works, often more than one job †¦ [because] the wealth of the few depends on the poverty of the many.† (Introduction, n.d.) In other words, capitalism, according to Marx, was tailored so that capitalists who control the means of production should get rich and the workers, whose labor produce the coveted surplus value are shamelessly exploited.   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Then the workers are alienated â€Å"from the activity of working† itself.   Marx claimed that workers in a capitalist society do not work because they want to, or enjoy what they do. Neither do they work to improve their lot nor to create a happier, more humane society. Rather, they work simply because they have to earn in order to live. In other words, Marx said that they are â€Å"forced† to work – implying that workers in a capitalist society are far from being happy individuals who have no control even over the course or objective of their labor. The decision rests solely on the capitalists who have already acquired control over their labor after paying for it. Since the only goal of capitalists is more profits, their only objective, therefore, is to utilize labor to gainful undertaking regardless of whether their enterprise benefits society or endangers it. Marx declared that â€Å"If greater profits can be made with weapons than with hula hoops, then that is where they will invest their capital.† In this context, workers who are anti-war are compelled to produce war materials. (Alienation, n.d.) Marx also suggested that in a capitalist society, people are alienated from one another. He argued that workers are not only â€Å"forced† to work under any conditions and for whatever purpose in order to survive they are also kept separate from one another, pitted against each other. This is because in their desire to live, they have to compete for work. In their craving for a comfortable life, they have to practically elbow each other out for better-paying jobs. It is not only workers who are being alienated from their fellow workers. Capitalists also turn against other capitalists in their quest for profit and power. Marx said that this never-ending competition for jobs and profits â€Å"favors the most ruthless, at other times the most opportunistic or well-connected.† In fact, Marx insinuated that this rat race which characterizes life in a capitalistic society is the start of the process of the dehumanization of man. Their failure to shape society according to their needs, their desires, and their concept of civilization, completes the process because this ability to create the kind of society that they want is what distinguishes man from the lower forms of animal.   (Introduction, n.d.) References Alienation. (n.d.). Order #32797436 attachment. Introduction. (n.d.). Order #32797436 attachment.

Othellos Loss for Words Essay -- Othello William Shakespeare Essays

Othello’s Loss for Words Othello’s character throughout the play demonstrates a skill and confidence in the art of language. From the beginning we see long, eloquent speeches that dazzle his audience – eloquently mixing complex words that help portray him as not only a strong warrior but also a fighter with a sound mind. However when Iago pressures him about the possible relationship between his wife Desdemona and Cassio, Othello’s passion for his beloved wife breaks down his self-control. In the next few pages I will demonstrate how Othello’s speech during the beginning of the play helps to strengthen his character, and by his death, he’s but a stuttering empty shell of a man. In addition, we’ll compare the language of the moor with that of Iago and see how anti-heroic words shape the way we see this self-interested character. During the third scene of the first act, Othello speaks eloquently about how he’s won and married Desdemona. This is a beautiful forty-line speech that really shows his capacity to articulate and communicate effectively before the higher court. The language that he uses helps us see Othello as a true, confident leader. Shakespeare writes: Hath this extent, no more, Rude am I in my speech, And little blessed with the soft phrase of peace, For since these arms of mine had seven years pith Till now some nine moons wasted, they have used Their dearest action in the tented field And little of this great world can I speak More than pertains to feats of broils and battle. (I.iii.81-87) Here Othello uses irony to subtly demonstrate his grasp of the English language. His claim that he is â€Å"rude† in speech is particularly revealing because he knows all too well that no one in that room would believe that he has rudimentary abilities. Similarly, the remaining line of this example shows us his poise with regard to physical strength and the leading of armies. Ultimately, use of this kind of language reflects Othello’s lofty ideals. From the onset, we are given words that mirror powerful, dramatic images that know no bounds – and with that, we see his strength and passion for being both an idealized military general and a devoted, loving husband. In contrast, if we look at the language of Iago we see long soliloqui... ...use of animal imagery continuing as before. In the final act of the play we see Iago’s language shift from long lines filled with evil thoughts to shorter sentences – much like Othello in act four. However, Iago’s slyness remains. Shakespeare writes: I have rubbed this young quat almost to the sense, And he grows angry. Now, whether he kill Cassio Or Cassio him, or each do kill each other, Every way makes my gain. (V.i.11-14) It isn’t until Othello begins to understand what has happened that we see a shift in each characters word selections. Once Othello slowly comes to realize Iago was behind the scandal, his confidence in speech begins to come back – and we start to notice more coherent thought. It’s interesting to think about how words play the most crucial role in creating imagery for an audience. In the case of these two characters, particularly Othello, the emotional wave he rode was only represented by his ever-changing use of words. In the beginning, we cheered for him – and by the end of play we weren’t sure what to think. Had he become as evil as Iago? Iago on the other hand, well, he’s just Iago.