نتایج جستجو برای: celled model
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Pregnancy offers a great strain on the body, for a two celled embryo becomes a two billion celled foetus. There is rapid proliferation of various maternal tissues and haemopoietic system, and the normal replacement of body tissue has to be continued. In consequence there is an exceptional demand for folic acid because of role of folates in cellular reproduction and tissue growth. In a country l...
The giant, single-celled organism Stentor coeruleus has a long history as a model system for studying pattern formation and regeneration in single cells. Stentor [1, 2] is a heterotrichous ciliate distantly related to familiar ciliate models, such as Tetrahymena or Paramecium. The primary distinguishing feature of Stentor is its incredible size: a single cell is 1 mm long. Early developmental b...
over the past decades a number of approaches have been applied for forecasting mortality. in 1992, a new method for long-run forecast of the level and age pattern of mortality was published by lee and carter. this method was welcomed by many authors so it was extended through a wider class of generalized, parametric and nonlinear model. this model represents one of the most influential recent d...
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