Improving Performance, Knowledge, and Methods to Provide Quality Service and Products

The objectives of this study were to educate staff about the impact of research in Alaska, enhance communication and coordination amongst stakeholders, and formulate a long-term research and implementation research plan for pavement and materials. Education begins with an overview of pavement design, construction and maintenance in Alaska since the 1900’s through a series of webinars. Interviews with five state materials engineers were used to explore best practices. Finally, a workshop focused on developing a coordinated research program and improve implementation activities. The workshop provided a series of recommendations to The Alaska Department of Transportation and Public Facilities which will enhance the value of the departments research program.Introduction ........................................................................................................................................................................ 1 Webinar 1: Overview Pavements at 30,000 ft, 10,000 ft, 10 ft. Big Number Value of Assets ....................... 3 Webinar 2: Research and Pavement Design, Construction, and Maintenance in Cold Regions (Roadway Embankments and Foundation) ...................................................................................................................................... 4 Webinar 3: Pavement Design, Construction and Maintenance in High Traffic Volume Urban Environments ...................................................................................................................................................................... 6 Webinar 4: Pavement Design, Construction and Maintenance Considerations in Rural Alaska .................... 8 Webinar 5: Pavement Best Practices in Alaska: Innovation and New and Emerging Technologies ............. 10 Webinar 6: Summary of Interviews with 5 State Materials Engineers and a History of the Alaska Statewide Materials Section .......................................................................................................................................... 14 Webinar Survey................................................................................................................................................................ 17 Workshop Summary ....................................................................................................................................................... 17 Recommendation 1: Webinars ................................................................................................................................ 18 Discussion ................................................................................................................................................................ 18 Recommendation 2: Selection of Materials-Related Research ......................................................................... 19 Recommendation 3: Literature Search .................................................................................................................. 19 Recommendation 4: Implementation ..................................................................................................................... 20 Open Discussion ......................................................................................................................................................... 21 Action Items ................................................................................................................................................................. 21 Appendix A: Webinar Series 1 - Overview of Pavement Design Appendix B: Webinar Series II - Construction and Maintenance in Cold Regions, Appendix C: Webinar Series III - Construction and Maintenance Considerations in Rural Alaska Appendix D: Webinar Series IV - Construction and Maintenance Considerations in Urban Areas Appendix E: Innovation: Webinar Series V - New and Emerging Technologies Appendix F: Webinar Series VI - Interviews with State Departments of Transportation Material Section Heads Appendix G: A Report on Interviews with State Departments of Transportation Material Section Head

AMSAHTS 1990: Advances in Materials Science and Applications of High Temperature Superconductors

This publication is comprised of abstracts for oral and poster presentations scheduled for AMSAHTS '90. The conference focused on understanding high temperature superconductivity with special emphasis on materials issues and applications. AMSAHTS 90, highlighted the state of the art in fundamental understanding of the nature of high-Tc superconductivity (HTSC) as well as the chemistry, structure, properties, processing and stability of HTSC oxides. As a special feature of the conference, space applications of HTSC were discussed by NASA and Navy specialists

Peer Sexual Harassment and Peer Violence Among Adolescents in Johanesburg and Chicago

In this comparison study of peer sexual harassment and peer violence in South African and US schools, the roles of gender and power in the experience, perpetration, and reaction to peer sexual harassment, physical violence and sexual violence are described for 208 South African students and 224 US students age 16-18

The George-Anne

Performance Medium: Piano, Voice and Chord

Genetic and Environmental Parameters for Ovulation Rate, Twinning Rate, and Weight Traits in a Cattle Population Selected for Twinning

A project was implemented in 1981 with the objective of increasing twinning rate in cattle. Daughters of foundation sires had twin calves at a frequency of from 8 to 13%, and foundation females had twin calves at an average frequency of 50%. Data were analyzed on twinning rate, ovulation rate, and weight traits. The h2 of ovulation rate increased from .11 to .38 for a single estrous cycle to the mean of eight estrous cycles. From all data, h2 for single observation of ovulation rate and twinning rate were .10 and .09, respectively. The rg between them was .75. The h2 of weight traits ranged from .42 to .54 when weight traits were analyzed pair-wise with ovulation rate and with twinning rate. The rg between weight traits with ovulation rate ranged from .15 to .30 and with twinning rate ranged from .24 to .39. Phenotypic mean twinning rate increased from 1.07 to 1.29 calves per parturition for females born 1981 through 1993, and adjusted mean predicted breeding value (PBV) increased from 1.07 to 1.33 calves per parturition. Phenotypic mean ovulation rate for fall of 1984 through fall 1994 birth groups increased from 1.11 to 1.26 per estrous cycle, and adjusted mean PBV for ovulation rate increased from 1.11 to 1.29 per estrous cycle. Because of the high rg (i.e., .75) between ovulation rate and twinning rate, and because of a h2 of .35 for ovulation rate for the mean of six estrous cycles, repeated records of ovulation rate in puberal heifers is an effective indirect selection criterion for twinning rate. The positive rg between growth traits and ovulation and twinning rate suggest the need for some compromise when the selection goal is increased twinning rate with no increase in growth and size

Genetic changes in beef cow traits following selection for calving ease

One approach to reducing calving difficulty is to select heifers with higher breeding value for calving ease. Calving ease is often associated with lower birth weight and that may result in other possible effects on lifetime productivity. Females from experimental select and control calving ease lines within each of the seven populations were compared. Random samples of 720 heifers from lines selected for better calving ease breeding values and 190 heifers from control lines selected for average birth weights were followed through four parities. Select and control lines within the same population were selected to achieve similar yearling weight breeding values. Weights of sampled heifers in select lines were 2.6 kg (P \u3c 0.01) lighter at birth but not different from control lines at weaning. Select lines had significantly shorter hip height, lighter mature weight, and greater calving success at second parity. Their calves were born significantly earlier with lighter weights and less assistance. Significant interactions with parity showed fewer calves assisted and greater calf survival to weaning as heifers but negligible differences with control lines in later parities. Steer progeny sampled from these dams in select lines (n = 204) were not different from steers in control lines (n = 91) for hot carcass weight but had significantly greater fat depth. Two production systems were compared considering the seven populations as replicates. The systems differed in selection history of females (select and control lines) and the use of bulls within their lines as young cows, but used the same bulls in both lines as older cows. Cows were culled after single unsuccessful breeding and kept for up to four parities. Select line cows tended (P ≤ 0.10) to wean more calves and stay in the herd longer. They were assisted significantly fewer times at calving and had greater calf weight gain to weaning when evaluated over their herd life. Mature weights were lighter in select lines, but marketable cow weight from the systems was nearly identical. Control lines did have more marketable young cow weight and select lines older cow weight. Weaned calf weight per heifer starting the system was significantly greater for the select heifer system due to greater survival of calves from heifers and greater calving success at second parity. No important unfavorable effects of genetic differences in calving ease were identified in this experiment