Two human hepatoma cell lines, Hep G2 and Hep 3B, were screened for vitamin D3-25-hydroxylase enzyme activity by incubation with radioactive vitamin D3. A compound co-chromatographing with 25-OH-D3 was synthesized in both cell lines but its rate of synthesis was tenfold greater in Hep 3B than in Hep G2 cells. The identity of the compound was confirmed by comparing its chromatographic properties...

in this study, we synthesized herceptin conjugated magnetic nanoparticles (hmns) as an alternative probe to discover the levels of her2 (human epidermal growth factor receptor-2) in the surface of cells. these nanoparticles can be used by magnetic resonance imaging (mri) (non-invasive methods) for screening the patients with her2 positive or negative tumors. dextran coated iron oxide nanopartic...

This paper proposes a method based on key parameter monitoring and backpropagation neural network to standardize LIBS spectra, named KPBP. By the laser output energy plasma flame morphology using algorithm fit spectral intensity, KPBP standardizes segments containing characteristic lines. study first conducted experiments spectra of pure aluminium, monocrystalline silicon, zinc optimize model t...

Semen cryopreservation is necessary for banking germplasm from critical poultry stocks. To date, glycerol is the most effective cryoprotectant for poultry sperm; however, the contraceptive effects of glycerol require a significant reduction of the cryoprotectant from thawed semen before artificial insemination (AI). The effectiveness of glycerol reduction by dialysis, Percoll density gradient c...

In this paper‎, ‎we introduce the notion of $(m,n)$-‎algebr‎aically compact modules as an analogue of algebraically‎ ‎compact modules and then we show that $(m,n)$-algebraically‎ ‎compactness‎ ‎and $(m,n)$-pure injectivity for modules coincide‎. ‎Moreover‎, ‎further characterizations of a‎ ‎$(m,n)$-pure injective module over a commutative ring are given‎.

We discuss the detection of 14 rovibrational lines CH+, obtained toward planetary nebula NGC 7027 with iSHELL spectrograph on NASA's Infrared Telescope Facility (IRTF) Maunakea. Our observations in 3.49–4.13 μm spectral region, a 0375 slit width that provided resolving power λ/Δλ ∼ 80,000, have resulted unequivocal R(0)−R(3) and P(1)−P(10) transitions within v = 1−0 band CH+. The R-branch are a...

Because of their high stability, the presence diamond-type molecules has long been suspected in interstellar medium, a hypothesis supported by extraction diamond nanocrystal from some meteorites. We report rotational and vibrational investigation two polar derivatives adamantane (C10H16), 1-cyanoadamantane (C10H15–CN) 1-isocyanoadamantane (C10H15–NC), using room temperature gas phase absorption...