ABSTRACT We present a catalogue of 551 214 main-sequence stars in the local (d < 2 kpc) Galactic thick disc and halo, based on search with large proper motions ($\mu _{\rm tot} \gt 40.0~\rm mas\, yr^{-1}$) Gaia Early Data Release 3. derive photometric metallicity calibrated from colour–luminosity–metallicity distribution 20 047 spectroscopic metallicities, collected various surveys, incl...

ABSTRACT We investigate the temporal and colour variability of 897 blazars, comprising 455 BL Lacertae objects (BL Lacs) 442 Flat Spectrum Radio Quasars (FSRQs), selected from Roma-BZCAT catalogue, using multiband light curves Zwicky Transient Facility (ZTF DR6) survey. Assessing characteristics over ∼2 yr time-scales, we found that 18.5 per cent (84 out 455) Lacs showed a stronger bluer-when-b...

Polymorphic restriction endonuclease sites within the HLA-DR alpha gene have been defined, localized, and used as genetic markers in the analysis of susceptibility to insulin-dependent diabetes mellitus (IDDM). Hybridization of Bgl II-digested human genomic DNA with a cDNA clone for the HLA-DR alpha chain (pDR alpha-1) has revealed three allelic restriction fragment lengths: 3.8 kilobase pairs ...

We examine whether the gravitational shear–intrinsic ellipticity (GI) correlation function of the luminous red galaxies (LRGs) can be modeled with the distribution function of a misalignment angle advocated recently by Okumura et al. For this purpose, we have accurately measured the GI correlation for the LRGs in the Data Release 6 (DR6) of the Sloan Digital Sky Survey (SDSS), which confirms th...

We present an updated version of MegaZ-LRG (Collister et al. 2007) with photometric redshifts derived with the neural network method, ANNz as well as five other publicly available photo-z codes (HyperZ, SDSS, Le PHARE, BPZ and ZEBRA) for ∼1.5 million Luminous Red Galaxies (LRGs) in SDSS DR6. This allows us to identify how reliable codes are relative to each other if used as described in their p...

Introduction: The major histocompatibility complex (MHC) is a group of cell surface proteins that are essential for recognizing foreign molecules in human and other mammals. The physiologic function of MHC molecules is the presentation of peptides to T cells. In this study, we evaluated the purification of a class II MHC molecule (HLA-DR) from a human Burkitt′s lymphoma cell line; Daudi...

Processed antigen reacts selectively with lymphocytes bearing .appropriate surface immunoglobulin molecules resulting in the clonal proliferation of these cells, produc­ing circulating immunoglobulin (humoral immunity) or non-circulating immunoglobulins (cellular immunity).  High levels of circulating immunoglobulins (lgM & lgG) occur in protozoa and helminths infections. Reaginic antibodies a...

the holstein bulls (n=50) were genotyped for bovine lymphocyte antigen (bola-drb3.2) alleles by polymerase chain reaction and restriction fragment length polymorphism (pcr-rflp). genomic dna was extracted from bull semen using phenol-chloroform method. a two-step pcr was conducted in order to amplify a 284 base-pair fragment of the target gene. amplicons were digested by rsai, haeiii and bstyi ...

hydatid cyst fluid has been used as a source of antigen for the serodiagnosis of echinococcus granulosus infection. due to cross-reactions with antigens shared by other helminthes, the specific antigen from hydatid cyst fluid was purified by many workers. we used a relatively simple technique for purification of specific antigen from sheep hydatid cyst fluid. isopycnic ultracentrifugation with ...