â â â  in this study, ability and skill of the nesting version of the regcm3 regional climate model in simulation of monthly and seasonal amount of precipitation and temperature using four different cumulus parameterization of grell-as, grell-fc, emanuel and kuo have been studied over khorasan area including three provinces of north khorasan, khorasan razavi and south khorasan. in this regards,...

This paper qualifies the effect of different convection schemes and center-domains on the simulation of winter precipitation over Iran using RegCM3 numerical climate model. It is compressible, finite difference with hydrostatic equilibrium in sigma coordinate with a semi-implicit algorithm for reduction of horizontal diffusion. Iran experienced two dry and wet periods during winters of 1997 and...

HE distributive pairing model of meiosis for the female of Drosophila melanoTgastcr (R. F. GRELL 1962a) postulates a chronological series of events which includes exchange pairing, exchange, distributive pairing, and segregation, in the order given. The model was dictated by genetic data, derived from studies of nonhomologous pairing, which showed that the frequency with which nonhomo!oguos pai...

The effects of a female-specific meiotic mutation, altered disjunction (old: 361), are described. Although old females show normal levels of meiotic exchange, sexand 4th-chromosome nondisjunction occurs at an elevated level. A large proportion of the nondisjunction events is the result of nonhomologous disjunction of the sex and 4th chromosomes. These nonhomologous disjunction events, and proba...

HE segregational behavior of Drosophila chromosomes in the first meiotic Tdivision of the oocyte is quite different from that expected from the classical picture of the independent assortment of nonhomologous chromosomes and the regular segregation of homologous chromosomes. Under appropriate circumstances, nonhomologous chromosomes may segregate very regularly to opposite poles of the spindle ...

most of this is by German doctors idealizing Paracelsus as a forerunner of their own practices. Heinz Schott takes this further by arguing that the occult and religious content of Paracelsus's writings is reflected in modern psychosomatic medicine. By contrast, Herbert Breger focuses on leading "Paracelsians" of the seventeenth century and suggests that their willingness to identify with a Para...