JAN A. HERMAN and ALEX. G. HARRISON. Can. J . Chem. 59,2133 (1981). A series of formate (methyl through butyl) and acetate (methyl through pentyl) esters have been protonated in the gas phase by the Brgnsted acids H3+, N2H+, C02H+, N20H+, and HCO+. Carbonyl oxygen protonation is 87-97 kcal mol-' exothermic for H,+ and 47-57 kcal mol-' exothermic for the weakest acid HCO+, permitting a study of ...

A spontaneous prostatic adenocarcinoma (R-3327) of a Copenhagen rat has been maintained for 14 generations by s.c. transplantations to Copenhagen and Fi hybrid hosts. The tumor remains histologically a well-differentiated ade nocarcinoma. In order to study the role of gonadal hor mones in this system, tumor expiants were inoculated to intact males, castrated males, and intact females, and the g...

The incidence of carcinoma of the breast in parabiosed female NEDH rats is 2.5%. When one member of such a pair is irradiated, the incidence rises to I 1% in the irradiated partner and 10% in the nonirradiated partner. If in such a pair of rats one kidney is removed from each partner, the incidence of breast carcinoma rises fivefold in the nonir radiated partner. The factors involved in such an...

The effect ofglucocorticoids on activation and replication of leukemia virus in AKR mouse embryo cells was ana lyzed. The number of cells detected as positive by fluores cent antibody techniques as well as the virus production in cells chronically producing virus was doubled at optimal concentrations of glucoconticoids. The effect of the hor mones in activated cells was found to be not on the p...

A spontaneous prostatic adenocarcinoma (R-3327) of a Copenhagen rat has been maintained for 14 generations by s.c. transplantations to Copenhagen and Fi hybrid hosts. The tumor remains histologically a well-differentiated ade nocarcinoma. In order to study the role of gonadal hor mones in this system, tumor expiants were inoculated to intact males, castrated males, and intact females, and the g...

An important aspect of planning for shallow tunneling under urban areas is the determination of likely surface movements and interaction with existing structures. Back analysis of built tunnels that their settlements magnitude is available, could aid the designers to have a more accuracy in future projects. In this paper, one single Tehran Metro Tunnel (at west of Hor square, Jang University St...

The administration of pituitary growth hor mone (STH) to C3H mice bearing transplanted mammary adenocarcinoma has been shown to cause an increase in the tumor and animal weights when the mice were sacrificed at the end of a 27day injection period (5). It was also observed that the animals receiving STH appeared generally healthier than did their respective controls at the time they were sacrifi...

As the stipulate for wireless communication has been mounting hurriedly, resourceful management of radio spectrum becomes very imperative. Channels are derisory and hence must be utilized inventively. In this paper, a evaluation of Fixed Channel allocation and Dynamic Channel Allocation is evaluated using analytical and simulation model in 25 cell system for GSM 1800. A suitable analytical mode...

Semakin ketatnya persaingan terutama dalam sektor industri, perusahaan dituntut untuk berkompetisi menjadi yang lebih unggul. Supply ChainManagement (SCM) merupakan suatu hal sangat penting diperhatikan karena melibatkan semua elemen berpartisipasi pergerakan usaha, mulai dari pemasok (supplier), manufaktur, hingga customer. Secara umum kegiatan terkait dengan aliran material, informasi, dan fi...

  Cellular estrogen receptors in cryostat sections of human glioma tissue were determined in 34 patients by a histochemical method with 17β-estradiol-6-carboxymethyl oxime-bovine serum albumin-fluorescein isothiocyanate conjugate. Estrogen receptor protein was found in all cases of glioblastoma multiforme (7), anaplastic astrocytoma (5), benign astrocytoma (7), pilocytic astrocytoma (...