The isolation of clonal lines of murine sarcoma virus-transformed, non-producer BALB/3T3 cells has provided a model system for determining whether RNA tumor virus-transformed cells possess virus-specific transplantation antigens. MSV nonproducer cells (K-234) were clonally derived from an inbred mouse cell line, BALB/3T3. A parallel virus-producing cell line was obtained by infection of the MSV...

Four double-monoclonal time-resolved immunofluorometric assays (TrIFMAs) have been developed for the specific determination of pregnancy-associated plasma protein A/proeosinophil major basic protein (PAPP-A/ proMBP) complex in first-trimester maternal serum samples. The assays have a functional sensitivity of < 4 mIU/L and a working range from 4 to 1000 mIU/L. These 4 assays, together with a po...

برخی از گونه ‏های زنبور تریکوگراما، دارای نوعی همزیستی با باکتری Wolbachia هستندکه باعث القاء بکرماده ‏زایی در آنها می‏شود. جمعیت‌هایی این پارازیتوئید تخم آفات که نتاج ماده بیشتری تولید می‌کنند، می‌توانند بالقوه توان بالاتری برخوردار باشند. پس شناسایی یک جمعیت بومی آلوده به ولباکیا Trichogramma brassicae، بررسی‏ هایی منظور ارزیابی توانایی‌های تک‏جنسی (A) قیاس جمعیت‌‏های دوجنسی طبیعی (B) و تغذیه...

The atomic structure of the InP~001! reconstructions has been identified by scanning tunneling microscopy and infrared spectroscopy of adsorbed hydrogen. The four phases, in order of decreasing phosphorous coverage, are c(232)/p(232), uP52.0 ML; (231), uP51.0 ML; s(234), uP50.25 ML, and d(234), uP 50.125 ML. The (232) consists of phosphorous dimers adsorbed onto a layer of P atoms. Removal of t...

From a phenomenological view, the motivation for supersymmetry(SUSY) is that it provides us with an elegant method of dealing with the hierarchy problem. Supersymmetry solves the hierarchy problem because |λf | = λs, where λf and λs are higgs’ coupling to the Standard Model(SM) fermions and their scalar superpartners(SP) respectively. Due to this relationship between the two coupling constants ...