The author reviews contribution of Gakushuin University group to the progress of the quantum transport in semiconductor two-dimensional electron systems (2DES) for forty years from the birth of the 2DES in middle of the 1960s till the finding of temperature dependent collapse of the quantized Hall resistance in the beginning of this century.

abstract the harvesting time and storage conditions of olive fruit are effective factors on the quality and quantity of oil. the harvesting time of olive is different in each area and it depends on climatic conditions.this investigation was carried out to assess the impact of harvesting time on olive oil quality and quantity frome two olive varieties cultivated in gorgan region. for this reason...

In two and almost a half years of writing this column my mum, Vesna Andrijević-Matovac, and I, Nika Matovac, shared with you a true and very intimate story of a woman with breast cancer and her daughter. In these columns, you have witnessed our great moments, sad moments, and devastating moments, you have been a part of our life. Now, as everything has its beginning and its end, it is time to s...

Hydrogen sulfide (H2S) has been shown to protect the gastric mucosa through several protective mechanisms but till now its effect on mRNA expression of sodium bicarbonate cotransporter 1 (NBC1), trefoil factor1 (TFF1) and trefoil factor2 (TFF2) was not investigated. This study was aimed to evaluate the effect of H2S on mRNA expression of NBC1, TFF1 and TFF2 in rat gastric mucosa in response to ...

yenr. I may here mention that since my appointment to civil employment, some twelve months a<;o, I liave had a fair quantity of time at my disposal, and this I liavo devoted to giving considerable attention to diseases of tlje eye. During that time it lias fallen to my lot to have operated for cataract in over 200 cases I regret, however, to have to state that till about the beginning of the pr...

There are already many projects try to tell us how to use NS-2 easily, while not as that difficult as its official manual says. However, how to easily use NS-2 to do performance evaluation is still lacking. Usually, a trace file which comes out from one time NS-2 simulation is larger than 600MB, to analysis this huge file definitely will cost great time. Till now, there are many evaluation meth...

Because of its varying requirements, special needs education provides computer-aided instruction with a particular challenge. Up till now, these challenges have been met with computerized one-purpose teaching tools, instead of versatile learning environments. Since special needs education covers a multidimensional spectrum of learning dif-culties, a computer-based learning environment can benee...