منابع مشابه
Bioprospecting for Podophyllotoxin*
Podophyllotoxin is a natural lignan that is currently being used as a precursor to semi-synthetic anticancer drugs etoposide, teniposide, and etopophos. These compounds have been used for the treatment of lung and testicular cancers as well as certain leukemias (Stahelin and Wartburg 1991; Imbert 1998). The patent for the use of etoposide in such therapies expired in 1995 and since then, etopos...
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Visually capturing human hand motion requires estimating the 3D hand global pose as well as its local finger articulations. This is a challenging task that requires a search in a high dimensional space due to the high degrees of freedom that fingers exhibit and the self occlusions caused by global hand motion. In this paper we propose a divide and conquer approach to estimate both global and lo...
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This paper explores a new representation for text document by using an unsupervised learning mechanism – a hierarchical structure of Self-Organizing Feature Maps. This architecture is based on a code-book model. Through this architecture, a document can be encoded to a sequence of neurons while the temporal sequences of words as well as their frequencies are kept. Our results show that this arc...
متن کاملBioprospecting Marine Plankton
The ocean dominates the surface of our planet and plays a major role in regulating the biosphere. For example, the microscopic photosynthetic organisms living within provide 50% of the oxygen we breathe, and much of our food and mineral resources are extracted from the ocean. In a time of ecological crisis and major changes in our society, it is essential to turn our attention towards the sea t...
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Bioprospecting is the exploration of biological material for commercially valuable genetic and biochemical properties (Reid et al., 1993). This chapter will focus on the search for activities that could form the basis of new pharmaceuticals. Historically, most of the active ingredients in medicines have been natural products (Sneader, 1996), and natural products continue to form a productive so...
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ژورنال
عنوان ژورنال: Nature Methods
سال: 2012
ISSN: 1548-7091,1548-7105
DOI: 10.1038/nmeth.2061