Stem Cells: What How and Why? Essay -- essays research papers

Stem Cells: What, How and Why? Stem cells are infinitely valuable when considering their potential applications in the medical profession. While current legislative restrictions have halted the development of new ?stem cell lines? to any agency or company that receives any form of governmental grants, there is no question that the medical profession is standing at the brink of a new era of technological advancements in healthcare and research. Stem cells are valuable due to the fact that they are ?non-designated,? (have no specifically assigned task in the body, i.e. liver cells, brain cells, skin cells, etc.) and they also have the ability to divide indefinitely. Thus, theoretically stem cells could replace any damaged or lost specifically designated cells within the body. However, this is just a brief mention of the potential applications of stem cell research, which will be discussed at a later point in this essay. Stem cells are categorized into three genres based upon their potential developmental capability, total to limited. (NIH PRIMER http://www.nih.gov/news/stemcell/primer.htm) Totipotent stem cells are stem cells whose potential is total, thus totipotent. Totipotent stem cells are derived from embryonic tissue and fertilized ovarian eggs. This type of stem cell is of particular importance to researchers due to its ability to ?specialize into extraembryonic membranes and tissues, the embryo, and all postembryonic tissues and organs? (NIH Primer). However these type of cells are extremely difficult to come by and only occur in certain places at certain developmental times. Pluripotent stem cells are stem cells in which their potential is large but not total as in Totipotent stem cells. These cells lead to the development of many cells, but cannot derive certain types of fetal cells necessary for the development of a fetus as do Totipotent stem cells. These cells undergo further assigment into cells that are designed to derive specifically assigned cells. Pluripotent stem cells are somewhat easier to come by comparatively speaking to totipotent stem cells. The final genre of stem cells is that of multipotent stem cells. These cells are more specialized than the other two categories and thus are more restricted in their capability. Multipotent stem cells are derived from pluripotent stem cells. While pluripotent stem cells are least in their po... ...if a republican president is elected following Bush. Some might say these restrictions are necessary as technology and knowledge expand. However, by allowing the government to limit was scientist can and can?t do; we?re only doing one thing. Making the most brilliant minds our country has to offer leave. It seems as though America is one of the last overly conservative strongholds left in the modern world. If we allow our government to restrict what scientist can research in the United States, the scientist will simply move somewhere where the research isn?t illegal. I regard science as a passion. I can say with absolute certainty it is not my passion, however to many who make it their career choice, it is. I offer you this example. My passion is writing, if the government made it illegal to write about what I desired, I would do whatever necessary to allow myself to follow my passion. Moving across that big pond we call the Pacific Ocean would be a small price to pay to follow my passion and practice it freely. It should be noted that by restricting research of nearly any kind (yes I do have some morals) would simply result in the loss of America?s greatest thinkers.

Charles Lamb “Thoughtless Cruelty” Essay

Most people, at some point of their lives, have tortured inferior insects whether it be pulling the wings off a fly or crushing an ant. In the poem â€Å"Thoughtless Cruelty† by Charles Lamb the reader can see that the author is indeed angry about such a thing. The author uses the poetic devices such as diction, rhyme, and detail to describe his attitude toward those who perform such â€Å"Thoughtless Cruelty†. The author first directs his attention to â€Å"Robert† that has â€Å"kill’d that fly†. The author then says the man was â€Å"devoid Of thought and sense† to have killed the fly. Here, the author is implying that â€Å"Robert† must have been stupid for killing the innocent creature. The author goes on talking about natural death as a bird â€Å"devours† it or a â€Å"cold blast in the night† will take its life. By describing the natural causes of the insect’s death, Lamb sympathizes for the creature because of its unnatural death. Lamb continues discussing that pain exists in even â€Å"The greatest being†, and even the â€Å"smallest ones possess† the feeling of death and pain experienced before. The author goes on with more detail in the piece about the crude humor in the creature’s horrible death. Lamb explains, â€Å"The life you’ve taken to supply, You could not do it† that the life â€Å"Robert† has taken cannot be restored, no matter how hard he tries. The author tries to make â€Å"Robert† feel guilty by enlightening him, â€Å"A thing which no way you annoy’d – You’ll one day rue it†, suggesting that one day he will realize his cruelty and morn the death of the fly. â€Å"The bird but seeks his proper food†¦ May just take [its life]†. Here Lamb goes into more detail about the natural death the fly may have experienced. â€Å"A life by Nature made so short, Less reason is that you for sport Should shorter make it.† Lamb again tries to weigh more guilt upon â€Å"Robert†. â€Å"Although their frame and structure less Escape our seeing,† they still experience pain and its horrors. Though the rhyme scheme of AAAB, Charles Lamb starts to use the poetic device of rhyme to also express his attitude. In the first stanza, he talks about how â€Å"Robert, killed that â€Å"fly†, but not matter how hard he may â€Å"try† to â€Å"supply† the life he has taken, he could never â€Å"do it†. In the second  stanza Lamb writes that â€Å"Robert† must have been â€Å"devoid† of thinking to have â€Å"destroy’d† the fly that he never â€Å"annoy’d†, and will one day â€Å"rue it†, expressing negativity by sympathizing for the innocent creature. The author then goes into the natural death by illustrating the bird seeking its â€Å"food†, that fate whose power â€Å"endu’d† the fly thinks the time is â€Å"good† will take â€Å"it†. Finally, the author fully expresses himself when he explains the pain â€Å"The greatest being† can have with its â€Å"flesh † that even the fly may â€Å"possess†, small and structure â€Å"less† may escape our â€Å"seeing†. All in all, the author uses many poetic devices such as diction, detail, and rhyme to express his attitude toward, what seems tragic to the author, event. Even the title â€Å"Thoughtless Cruelty† expresses the authors feelings. Things may be different now, when you see a fly, pulling the wings off a fly may not seem the same.

Using Spanish to Say Look and Watch

Although the Spanish verbs ver and mirar can both mean to see, to look, or to watch, they usually arent interchangeable. Their differences also dont always correspond directly to the differences among the English verbs that have similar meanings. Using Ver and A Ver is commonly used in the following situations: To indicate the simple act of seeing something or someone. Vi el coche de tu madre. I saw your mothers car. No puedo ver las imà ¡genes. I cant see the pictures. To refer to the watching of television, a play, or a movie. Queremos ver Survivor esta noche. We want to watch Survivor tonight.  ¿Vas a ver la nueva pelà ­cula de Almodà ³var? Are you going to see the new Almodà ³var film? To refer to watching a sporting event. Me gustà ³ ver el segundo partido del torneo. I enjoyed watching the second game of the tournament. To refer to the anticipation of an outcome. A very common example of this is the idiom a ver, which typically is translated as lets see or well see. A ver si podà ©is ayudarme. Lets see if you can help me. Voy a ver quà © pasa. Im going to see what happens. To indicate understanding. No veo por que hay un doble està ¡ndar. I dont see why theres a double standard. To refer to a visit with someone. Es la tercera vez que voy a verlo. Its the third time Im going to see him. Using Mirar Mirar is commonly used in the following situations: To indicate deliberate looking, rather than mere seeing. Yo te miraba de afuera. I gazed at you from afar. Miraron a la derecha y a la izquierda. They looked right and left. To indicate the orientation of something. El hotel mira al mar. The hotel faces the sea. Note that ver is conjugated irregularly. Sample Sentences Showing Uses of Ver and Mirar El hotel mira todo el movimiento en la plaza. The hotel looks over all the action in the plaza. Hay cosas que no quiero ver. There are things I dont want to see. El nià ±o habà ­a visto a uno de ellos golpear a otros compaà ±eros de escuela y lo reportà ³ a la policà ­a. The boy had seen one of them strike other classmates and reported it to the police. Cuando Galileo miraba directamente al cielo, veà ­a al brillante Venus. When Galileo looked directly at the sky, he saw the brilliant Venus. Se miraron uno a otro con admiracià ³n. They admiringly looked at each other. Cuando se vieron uno a otro ella dijo, Hola. When they saw each other, she said, Hello. No quiero ver cuando me miras.   I dont want to see when youre looking at me. Miraron hacia los cerros y vieron una zona verde iluminada por los rayos del Sol. They looked toward the hills and saw a green area illuminated by the suns rays. Other Verbs That Can Be Used for Looking or Watching Buscar usually means to look for or to seek something. Note that it is not followed by a preposition meaning for. Se dice que Juan Ponce de Leà ³n siempre buscaba la fuente de la juventud. It is said that Juan Ponce de Leà ³n was always looking for the fountain of youth. Busquemos la verdad y la hallaremos. Lets look for the truth and we will find it. Revisar is often used to refer to examining or looking over something carefully. Revisamos todos los historiales mà ©dicos. We looked over all the medical histories. En cada una de las puertas, los miembros de seguridad revisaron los papeles requeridos para el ingreso de los estudiantes. At each of the entry points, the members of the security team looked over the papers required for the students admission. Observar can be used much like observe. No pude observar nada, dado que yo me quedà © fuera en la calle. I couldnt observe anything because I was left outside on the street. Quisieron observar la ciudad de noche. They wanted to observe the city at night. Fijarse sometimes means to focus visually on something.  ¡Fà ­jate en el camino! Keep your eyes on the road! Los viajeros se fijaron en los relojes y aretes de diamantes. The travelers keep their eyes on their watches and diamond earrings.