124 research outputs found

    A multi-scale study of infrared and radio emission from Scd galaxy M33

    Get PDF
    We investigate the energy sources of the infrared (IR) emission and their relation to the radio continuum emission at various spatial scales within the Scd galaxy M33. We use the wavelet transform to analyze IR data at the Spitzer wavelengths of 24, 70, and 160μ\mum, as well as recent radio continuum data at 3.6cm and 20cm. An Hα\alpha map serves as a tracer of the star forming regions and as an indicator of the thermal radio emission. We find that the dominant scale of the 70μ\mum emission is larger than that of the 24μ\mum emission, while the 160μ\mum emission shows a smooth wavelet spectrum. The radio and Hα\alpha maps are well correlated with all 3 MIPS maps, although their correlations with the 160μ\mum map are weaker. After subtracting the bright HII regions, the 24 and 70μ\mum maps show weaker correlations with the 20cm map than with the 3.6cm map at most scales. We also find a strong correlation between the 3.6cm and Hα\alpha emission at all scales. Comparing the results with and without the bright HII regions, we conclude that the IR emission is influenced by young, massive stars increasingly with decreasing wavelength from 160 to 24μ\mum. The radio-IR correlations indicate that the warm dust-thermal radio correlation is stronger than the cold dust-nonthermal radio correlation at scales smaller than 4kpc. A perfect 3.6cm-Hα\alpha correlation implies that extinction has no significant effect on Hα\alpha emitting structures.Comment: 15 pages, 10 figures, accepted for publication in the Astronomy and Astrophysics Journa

    Single Nucleotide Polymorphism Effects on Lamb Fecal Egg Count Estimated Breeding Values in Progeny-Tested Katahdin Sires

    Get PDF
    Publication history: Accepted - 14 April 2022; Published - 3 May 2022.Estimated breeding values (EBV) for fecal egg counts (FEC) at 42–90 days of age (WFEC) and 91–150 days of age (PFEC) for 84 progeny-tested Katahdin sires were used to identify associations of deregressed EBV with single-nucleotide polymorphisms (SNP) using 388,000 SNP with minor-allele frequencies ≥0.10 on an Illumina high-density ovine array. Associations betweenmarkers and FEC EBVwere initially quantified by single-SNP linear regression. Effects of linkage disequilibrium (LD) were minimized by assigning SNP to 2,535 consecutive 1-Mb bins and focusing on the effect of the most significant SNP in each bin. Bonferroni correction was used to define bin-based (BB) genome- and chromosome-wide significance. Six bins on chromosome 5 achieved BB genome-wide significance for PFEC EBV, and three of those SNP achieved chromosome-wide significance after Bonferroni correction based on the 14,530 total SNP on chromosome 5. These bins were nested within 12 consecutive bins between 59 and 71 Mb on chromosome 5 that reached BB chromosome-wide significance. The largest SNP effects were at 63, 67, and 70Mb, with LD among these SNP of r2 ≤ 0.2. Regional heritability mapping (RHM) was then used to evaluate the ability of different genomic regions to account for additive variance in FEC EBV. Chromosome-level RHM indicated that one 500-SNP window between 65.9 and 69.9Mb accounted for significant variation in PFEC EBV. Five additional 500-SNP windows between 59.3 and 71.6 Mb reached suggestive (p < 0.10) significance for PFEC EBV. Although previous studies rarely identified markers for parasite resistance on chromosome 5, the IL12B gene at 68.5 Mbcodes for the p40 subunit of both interleukins 12 and 23. Other immunoregulatory genes are also located in this region of chromosome 5, providing opportunity for additive or associative effects.This research was funded by the USDA NIFA Organic Agriculture Research and Extension Initiative grants no. 2016- 51300-25723 and 2010-51300-21641, and USDA Southern SARE grant no. LS08-204

    Descriptions Of The Larvae Of Some Predaceous Water Beetles Coleoptera Dytiscidae

    No full text
    Volume: 86Start Page: 261End Page: 27

    The effects of the changing textile technology on detergent formulations

    No full text

    Shell Egg Processing Plant Design

    No full text
    Excerpt from the report Summary: Materials-handling systems and associated equipment are suggested, for various production rates, for egg grading and packing plants that handle a volume ranging from 1,000 to 5,000 cases per week. Nomograms designed to determine exact storage space requirements for various inventory situations are illustrated, and their use, under a specific situation, is discussed. Equipment layouts for the processing area, involving equipment designed for specified production rates, are illustrated with appropriate flow lines for product and materials. Placement of areas auxiliary to the processing and storage areas to provide for economic operation, space utilization, plant construction, and expandability are explained and illustrated. Construction detail of an example design is illustrated by detailed plan drawings that are explained
    • …
    corecore