Larval diapause in Dendroctonus obesus (Mannerhaim)(Coloeoptera: Scolytidae)

i>Dendroctonus obesus (Mannerheim) larvae diapaused in the last instar during laboratory rearing with warm thermoperiods reduced to 12 bours or less, mean temperatures of 50∞-56∞F. (10∞-13.3∞C) and at least one minimum subcortical temperature near or below the larval development threshold during the third and fourth instars. Larvae reared at a constant temperature of 70∞F (21.1∞C) did not diapause. Prediction of beetle populations and forest damage is dependent on a knowledge of the seasonal meteorological conditions that affect larval dispause and subsequently the numbers of mature beetles capable of initiating attacks. Further investigation is required to determine the separate effects of brood age, temperatures and thermoperiods on diapause

Sulphur-bearing molecules in diffuse molecular clouds: new results from SOFIA/GREAT and the IRAM 30 m telescope

We have observed five sulphur-bearing molecules in foreground diffuse molecular clouds lying along the sight-lines to five bright continuum sources. We have used the GREAT instrument on SOFIA to observe the 1383 GHz $^2\Pi_{3/2} J=5/2-3/2$ transitions of SH towards the star-forming regions W31C, G29.96-0.02, G34.3+0.1, W49N and W51, detecting foreground absorption towards all five sources; and the EMIR receivers on the IRAM 30m telescope at Pico Veleta to detect the H$_2$S 1(10)-1(01), CS J=2-1 and SO 3(2)-2(1) transitions. In nine foreground absorption components detected towards these sources, the inferred column densities of the four detected molecules showed relatively constant ratios, with N(SH)/N(H$_2$S) in the range 1.1 - 3.0, N(CS)/N(H$_2$S) in the range 0.32 - 0.61, and N(SO)/N(H$_2$S) in the range 0.08 - 0.30. The observed SH/H$_2$ ratios - in the range (0.5-2.6) $\times 10^{-8}$ - indicate that SH (and other sulphur-bearing molecules) account for << 1% of the gas-phase sulphur nuclei. The observed abundances of sulphur-bearing molecules, however, greatly exceed those predicted by standard models of cold diffuse molecular clouds, providing further evidence for the enhancement of endothermic reaction rates by elevated temperatures or ion-neutral drift. We have considered the observed abundance ratios in the context of shock and turbulent dissipation region (TDR) models. Using the TDR model, we find that the turbulent energy available at large scale in the diffuse ISM is sufficient to explain the observed column densities of SH and CS. Standard shock and TDR models, however, fail to reproduce the column densities of H$_2$S and SO by a factor of about 10; more elaborate shock models - in which account is taken of the velocity drift, relative to H$_2$, of SH molecules produced by the dissociative recombination of H$_3$S$^+$ - reduce this discrepancy to a factor ~ 3.Comment: 30 pages, accepted for publication in A&

The United Testimony on Faith and Life

The Lutheran Church bodies making up the American Lutheran Conference have now walked and worked together for a period of more than twenty years. They have learned to know one another both as to doctrine and as to manner of life. They have been associated as brethren serving the Lord. Coming out of varying backgrounds as to national origin and as to distinctive trends in church life and practice, they have learned to cherish one another\u27s contributions to the fulness of the Church\u27s life in Christ. Through closer acquaintance and deepening fellowship they have found that the common roots of their faith, in the Holy Scriptures and in the Lutheran Confessions, have given them a common life in communion with the One Lord and Savior

A method of classifying shortleaf pine sites in Missouri

This bulletin reports on a portion of School of Forestry Project 346, 'Forest site Evaluation'--P. [3].Digitized 2007 AES.Includes bibliographical references (pages 44-46)

Forest soil areas in the Ozark region of Missouri

Also available online.Digitized 2007 AES

Serum proteins as an indication of species specificity in Larval Curculio

This bulletin reports on Department of Entomology research project, 294, Acorn Insects. It is based on a thesis submitted by the author in partial fulfillment of the requirements for the degree, Doctor of Philosophy, June, 1959--P. [2].Digitized 2007 AES.Includes bibliographical references (pages [24]-27)

Visual preferences for interior egg quality

This publication is a report on Department of Agricultural Economics research Project 382, 'The relation of Egg Quality Criteria to Consumer Acceptability of Eggs'--P. [2].Digitized 2007 AES.Includes bibliographical references (pages 23-25)

Genetic aspects of reproduction in swine

This bulletin reports on Department of Animal Husbandry Research Project 222, 'Swine improvement' and Department of Agricultural Chemistry, 223, 'Reproductive Physiology'--P. [2].Digitized 2007 AES.Includes bibliographical references (pages 33-35)

A New approach to measuring consumer acceptability of beef

This bulletin is a report on Department of Agricultural Economics Research Project 86, 'Meat Preferences,' Animal Husbandry Project 5, and Home Economics Project 109--P. [3].Digitized 2007 AES.Includes bibliographical references (page 26)

The Effect of continued testing upon consumer evaluation of beef loin steaks

The bulletin is a report on Department of Agricultural Economics Research Project 86, 'Meat Preferences,' Animal Husbandry Project 5, and Home Economics Project 109--P. [3]."Portions of this analysis are reported in a Master's thesis submitted to the University of Missouri by Max F. Jordan"'--P. [3].Digitized 2007 AES.Includes bibliographical references (page 38)