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Priscila Roney's picture

Teratoma: The monster that may lead to the cure?

The term "teratoma" originating from the Greek word teraton meaning monster, is used to describe a kind of tumor that forms from pluripotent germ cells. Pluripotent cells are unique in the way in which they demonstrate the ability to produce biological responses very similar to that of normal human tissue. Teratomata usually consist of a tumor that is very different compared to the issue of the area in which it is growing. What is most alarming and many times horrifying about teratomata is that it can grow hair and teeth very similar to real human tissue. These tumors have puzzled scientists, psychics, doctors and patients for centuries. Early beliefs blamed the individual suffering from the condition for swallowing hair or other body parts and that this growth was a punishment for cannibalism. Other beliefs include witchcraft and curses as well as a punishment for adultery with the devil. While it has not been proven, certain manuscripts state that due to their human-like characteristics, there was a time in which the Roman Catholic Church considered teratomata to be a forming embryo and required it to be baptized. The parthenogenic theory is now the one that is most widely accepted.

Cristiane de Oliveira's picture

Colored Hearing: Synesthesia as an Enhanced Reality


Every human being has a different perception of the world; these contrasting perceptions, including interactions with colors and sounds, have influenced many artists in producing remarkable works of art and literature. The great Russian writer Vladimir Nabokov describes in his autobiography the intriguing relationship he has with letters and colors, something he refers to as "colored hearing": "The color sensation seems to be produced by the very act of my orally forming a given letter while I imagine its outline. The long a of the English alphabet has for me the tint of weathered wood, but a French a evokes polished ebony. This black group also includes hard g (vulcanized rubber) and r (a sooty rag being ripped). Oatmeal n, noodle-limp l, and the ivory-backed hand mirror of o take care of the whites...Since a subtle interaction exists between sound and shape, I see q as browner than k, while s is not the light blue of c, but a curious mixture of azure and mother-of-pearl." (Nabokov, 34). Nabokov's colored hearing is in fact the phenomenon of synesthesia - where two or more of the physical senses evoke concomitant feelings or perceptions.

Student Contributor to Biology 103's picture

The Abortion Pill

For the past few years, the introduction of RU-486 has caused heavy debate throughout
the country. Also known as the ‘abortion pill’, the use of the drug has become an
alternative to having a surgical abortion. RU-486 made the access of having abortions
easier for women to obtain. However, there are some severe consequences to taking the
abortion pill. Part of the debate over this drug is because of the health factors that it
poses and the other parts are of outside reasons. While there are dangerous side effects,
the Food and Drug Administration has allowed for the continual use of the drug and
through this approval, has made the drug legally okay to use. However, the legality of a
drug does not always mean that the drug is acceptable in or for society as some would
argue. There are people who believe otherwise, and so, this debate still continues.

Simone Biow's picture

Does Adolescence Make Sense?

Serving as a transitional period between childhood and adulthood, adolescence is an integral stage in the human growth process. It is both a period of physical metamorphosis and of identity formation. However, sociologists have begun to place "emphasis on adolescence as a problematic stage in modern society" (4). In fact, some scientists have even asserted that adolescence has become obsolete. Today, it is undeniable that, if current trends continue, the prolongation of adolescence and postponement of adulthood will have increasingly detrimental effects on both youths and society (6). Nevertheless, history and biology have proven that when regarded as a period of physiological and intellectual maturation, adolescence makes sense.

Sarah Mellors's picture

Why Do Some People Develop Obsessive-Compulsive Disorder?

As the child of a man whose acute Obsessive-Compulsive Disorder is the dominant force in his life, and consequently, having grown up in a very unnatural, controlled environment, when deciding on a top for this paper, I dared to delve into the enigmatic world of mental illness. I thought writing on this disorder would be both interesting and would help unlock the secret behind my father’s abnormal behavior. It would also help me understand why, up until now, I have exhibited only mild symptoms of this condition, and if the disorder is in fact hereditary, what this means for me in the future. In order to answer these questions, an in depth examination of the disease is needed.

Cayla McNally's picture

The Power and Complexity of Human Memory

I can remember going to a zoo in Canada with my parents when I was 3 years old; I can remember certain things said, that my father bowed out on seeing the lions because his feet hurt, and I can most certainly remember thinking that an angry gorilla was going to escape and throttle me in its gargantuan hands. One thing I cannot remember for the life of me, no matter how hard I try, is what anything looked like during my week there. I have no recollection whatsoever of the surroundings, no matter how much time I spend thinking about it, no matter how many times I present the question to my parents. Why is it that I can remember certain words, certain feelings, but nothing else? Why do people remember certain things, but blank on other things?
Kelsey McMillen's picture

Evolutionists: Not the fathers of their ideas

Since the mid-nineteenth century, Evolution has been reformed and recreated to further the biological evidence of life’s creation. Yet the ideas were not created by Charles Darwin or Aleksandr Oparin; they originated from the ancient Greek philosophers. As the people of Greece did not have the modern methods that we have today, they had to use their own observations of the World and were able to hypothesize the creation of life without modern technology. Evolution is said to have begun with the creation of inorganic molecules such as methane, water vapor, ammonia, and hydrogen (1).
Meagan McDaniel's picture

Web Paper 1 - Lou Gehrig's Disease.

I wasn't sure what to think when my sociology teacher told our class last year that she had Lou Gehrig's disease and probably wouldn't be finishing the semester with us. She had been my teacher for World History during sophomore year, and I had been excited to have her again for another class because she was very passionate about her subjects. "Lou Gehrig's disease" meant nothing to me, and her nebulous explanation didn't help. Why did she have it? What was it? If she'd just found out that she had it, how did she know already that she wasn't going to finish the semester?

Annabella Wood's picture

What is a Belief

What is a belief, and why bother having any? After all, if nothing can be proven as true, why would we believe in anything anyway? But certainly, we believe things, even against all sensory input.

 

For instance, if you stand in the middle of train tracks and look at them going off in the distance, your sensory input tells you that they meet up yonder a ways. And yet, you don’t believe that. Why would you go against your perceptory input on this? Probably it is because you have prior experience with tracks, watching them while on a train or walking, and have had the experience of seeing them open up before you as you move. Or do they open up before you? Though your senses tell you they do, you don’t believe that either. You believe they are stationary, not moving. But if that is true, how come they come together at the horizon, but never where you are?

Hannah Mueller's picture

Already Seen, Already Lived: What is Déjà Vu?

"It's déjà vu all over again." Upon hearing this cliché, most people know that it refers to a repetitive, unoriginal situation. They might also be familiar with the meaning of the French phrase "déjà vu": "already seen." Yet only about two thirds of the American population has ever had a déjà vu experience (1), and no scientist in history has been able to definitively explain the phenomenon. What is this sudden, often eerie sensation of having already seen or lived through the present moment, and how does it happen? Recent research on déjà vu, which only a few decades ago was considered unworthy of scientific exploration, has more clearly defined how déjà vu occurs and what is meant by the phrase. "Déjà vu" may actually be a catch-all term for three or four different memory malfunctions, at least one of which can become chronic in people with brain damage.

Defining déjà vu has proved nearly as difficult as describing a déjà vu experience. In 1983, the psychiatrist Vernon Neppe explained the illusion as "any subjectively inappropriate impression of familiarity of a present experience with an undefined past" (3). The words "inappropriate" and "undefined" troubled later researchers in their search for a single cause, because sometimes a "déjà vu" experience actually can be traced back to an experience in the past. Other scientists have found that, in a déjà vu situation, there is a difference between a feeling of "familiarity" and one of "recollection" (4). These discrepancies have caused different categories of phenomena to be created, of which déjà vu is only one.

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