Breeding Soundness of Bulls.

4 p

Breeding Soundness of Bulls.

4 p

Hay Ammoniation.

4 p

Sensory Aids Research

Contains reports on two research projects

22 April 1939 BERNALILLO County Specimen Collection Data

Specimen collected 22 April 1939. Original Locality: Conservancy ditch 5 miles N of Albuquerque on north Second Street. Locality: Conservancy ditch 5 miles N of Albuquerque on north Second Street.Catalog number: MSB108; Taxa: Lepomis cyanellus; Common name: green sunfish; Count of specimens: 1; Standard length:Catalog number: MSB442; Taxa: Ameiurus melas; Common name: black bullhead; Count of specimens: 1; Standard length:Catalog number: MSB640; Taxa: Pimephales promelas; Common name: fathead minnow; Count of specimens: 2; Standard length:Catalog number: MSB687; Taxa: Pimephales promelas; Common name: fathead minnow; Count of specimens: 8; Standard length:Catalog number: MSB1086; Taxa: Gambusia affinis; Common name: western mosquitofish; Count of specimens: 250; Standard length:Catalog number: MSB1091; Taxa: Gambusia affinis; Common name: western mosquitofish; Count of specimens: 71; Standard length:Catalog number: MSB1634; Taxa: Gila pandora; Common name: Rio Grande chub; Count of specimens: 2; Standard length:Catalog number: MSB1685; Taxa: Gila pandora; Common name: Rio Grande chub; Count of specimens: 1; Standard length:Catalog number: MSB2075; Taxa: Oncorhynchus mykiss; Common name: rainbow trout; Count of specimens: 3; Standard length

Cognitive Information Processing

Contains reports on two research project.National Institutes of Health (Grant 1 PO1 GM-14940-02)National Institutes of Health (Grant 1 P01 GM-15006-01)Joint Services Electronics Programs (U. S. Army, U. S. Navy, and U. S. Air Force) under Contract DA 28-043-AMC-02536(E

Balancing Forage Demand with Forage Supply

8 pp., 2 tablesRanchers must achieve a balance between stocking rate and forage supply for effective conversion of range forage to animal production. This publication can help ranchers evaluate current forage conditions, make timely forage inventories, plan stock flow, and calculate forage quantity. Available in Spanish as E-96S

Comparative Direct Analysis of Type Ia Supernova Spectra. IV. Postmaximum

A comparative study of optical spectra of Type Ia supernovae (SNe Ia) obtained near 1 week, 3 weeks, and 3 months after maximum light is presented. Most members of the four groups that were defined on the basis of maximum light spectra in Paper II (core normal, broad line, cool, and shallow silicon) develop highly homogeneous postmaximum spectra, although there are interesting exceptions. Comparisons with SYNOW synthetic spectra show that most of the spectral features can be accounted for in a plausible way. The fits show that 3 months after maximum light, when SN Ia spectra are often said to be in the nebular phase and to consist of forbidden emission lines, the spectra actually remain dominated by resonance scattering features of permitted lines, primarily those of Fe II. Even in SN 1991bg, which is said to have made a very early transition to the nebular phase, there is no need to appeal to forbidden lines at 3 weeks postmaximum, and at 3 months postmaximum the only clear identification of a forbidden line is [Ca II] 7291, 7324. Recent studies of SN Ia rates indicate that most of the SNe Ia that have ever occurred have been "prompt" SNe Ia, produced by young (100,000,000 yr) stellar populations, while most of the SNe Ia that occur at low redshift today are "tardy", produced by an older (several Gyrs) population. We suggest that the shallow silicon SNe Ia tend to be the prompt ones.Comment: Accepted by PAS

Internal alignments of red versus blue discs in dark matter haloes

Large surveys have shown that red galaxies are preferentially aligned with their haloes, while blue galaxies have a more isotropic distribution. Since haloes generally align with their filaments, this introduces a bias in the measurement of the cosmic shear from weak lensing. It is therefore vitally important to understand why this difference arises. We explore the stability of different disc orientations within triaxial haloes. We show that, in the absence of gas, the disc orientation is most stable when its spin is along the minor axis of the halo. Instead when gas cools on to a disc, it is able to form in almost arbitrary orientation, including off the main planes of the halo (but avoiding an orientation perpendicular to the halo's intermediate axis). Substructure helps gasless galaxies reach alignment with the halo faster, but has less effect on galaxies when gas is cooling on to the disc. Our results provide a novel and natural interpretation for why red, gas poor galaxies are preferentially aligned with their halo, while blue, star-forming, galaxies have nearly random orientations, without requiring a connection between galaxies' current star formation rate and their merger history