5%. Symptoms were prevelent enough to require the same kinds of injections one would get in high mountain climbing. The CO2, however, fluctuated daily probably because of a different manner in which drawdown during sunlight interacted with night respiration. The crew had to constantly monitor and tweak these levels, often by manipulating irrigation, cutting and storing biomass, and increasing or decreasing photosynthesis. Some thought that this unplanned fuxuation came about because of a series of microbial growth spurts in the soil (Marino and Odum, 1999).
The second stage of the experiment is what brought it to a close. It was scheduled to last from March 1994 to January 1995, but, because of a series of disputes between management, problems within the second crews dynamics, and members of the first crew violating the clsure rule, it was dissolved on September 6, 1994. Experts came into the facility and found that one ant species had almost dominated the ecosystem; wiping out the fertilizers, preying on birds, and more (Broad, 1996). Columbia University took over the project from 1995 to 2003, using it as a working lab for research on space flight research, planetary dynamics, and the effects of global warming (Arenson, 2003).
The question remains, however: was Biosphere 2 a failure? Certainly, it was a failed managerial attempt externally; certainly the second mission collapsing was a failure, but the project a failure -- hardly. In fact so much data has come out of the techniques used in Biosphere 2 that it can hardly be termed a scientific failure. First, we learned that, like chaos theory predicts, a system cannot be closed and not be expected to adapt in some way or another. Like trying to accurately predict the weather, predicting every single aspect of the moisture levels, the amount of sunlight (and who would know how many sunny days and at what intensity), or the way that minute soil bacteria would remove oxygen from the air, was practically impossible. This is an important lesson -- biomes are inordinately...
Gift giving creates a bond between the giver and the receiver. Mauss felt that to reject a gift, was to reject the social bond attached to it. Likewise, to fail to reciprocate is viewed as a dishonorable act in some cultures. Gift giving is a means to create social cohesion among the group. What Distinctive contributions did Weber make to social theory? Weber used his work to attempt to understand the
Jerry Coyne's Why Evolution is True I understand it contradicts the account in the Bible and other holy texts, if one takes a literalist interpretive stance, but given that most texts have more significant internal conflicts, I did not see why this particular theory would cause people to have such visceral emotional responses. I understand, intellectually, that evolution is not the first scientific advance to be met with tremendous hostility;
Ezra Pound's Meditatio Meditatio When I carefully consider the curious habits of Dogs I am compelled to conclude That man is the superior animal. When I consider the curious habits of man I confess, my friend, I am puzzled. As one of the fathers of literary modernism, Ezra Pound reacted to classicism and romanticism and, in the poem, Meditatio, expresses the conflict between individual identity and the bestial nature of humankind. In fact, it is the social
Museum Methods museum is usually a non-profit organization with intent to provide education and enlightenment by the organized collection, preservation, interpretation and exhibit of items deemed to be of interest to the public or community. Historically, museums have evolved as collaborative projects to house collected works gathered for the appreciation of the current and future generations in our society. However, such definitions cannot be regarded as the last word on
Even though users of light therapy are often advised not to look directly at the light source, the mechanisms of the eye focus incoming light onto the macula, the small region of the retina where vision takes place, and where age-related macular degeneration occurs. Since blue light wavelength make up only a small percentage of the light in white light, any form of light therapy using a high proportion
Mammals of Michigan There are many mammal species in Michigan, and this paper will discuss some of them, in terms of how they have evolved to live in the Michigan area, and how they have evolved to live off the land in the Michigan area. Something of the geological history of Michigan will also be discussed. We will start with the extinct mammals of the Michigan area: about 12,500 to 11,800 years
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