NEW CONSERVATION PROGRAMS AND PARTNERSHIPS, HOW PRIVATE SECTOR TECHNICAL SERVICE PROVIDERS WILL PARTICIPATE

Land Economics/Use,

Mutants and linkage studies in Triticum monococcum and T. aegilopoides

Publication authorized April 7, 1939."Field crops Department, Missouri Agricultural Experiment Station, and the Division of Cereal Crops and Diseases, Bureau of Plant Industry, United States Department of Agriculture, cooperating."Digitized 2007 AES.Includes bibliographical references (page 26)

Cytogenetic studies in Triticum monococcum L. and T. aegilopoides Bal.

Publication authorized December 3, 1936.Digitized 2007 AES.Includes bibliographical references (pages 37-38)

Estrus and ovulation relationships in beef cattle

A study involving 8o cows and heifers of the Angus and Hereford breeds was conducted in two separate years at the Knoxville Experiment Station of the University of Tennessee. This study was conducted to determine the length of estrus and the time of ovulation in relationship to estrus and the effects certain environmental and genetic factors had on these phenomena. The mean duration of 136 estrous periods was 9.51 ± .83 hours. Although parous females has a longer estrus than non-parous cattle, the difference was not significant. It was also found that breed had no significant effect on the length of estrus. When both estrous periods of each trial were considered together, trial has no significant effect on length of estrus; but the length of the second estrous period was significantly (P \u3c .05) shorter in Trial III than in Trial I or II. The mean interval from beginning of estrus to time of ovulation was 24.8 ± 1.35 hours and the mean interval from end of estrus to time of ovulation was 15.5 ± 1.3 hours. Trial had a significant (P \u3c .05) effect of time of ovulation. Trial represents the combined effects of differences in cattle, observers, season, and the effects of estrus synchronization in Trial III. The effect of breed and parity were confounded by an interaction between the two factors. Angus heifers had a significantly (P \u3c .05) shorter interval from the end of estrus to time of ovulation than Hereford heifers or Angus cows, while Hereford cows had a significantly (P \u3c .05) shorter interval than Angus cows or Hereford heifers. Estrus occurred most frequently during the early morning and early afternoon hours, while ovulation occurred most frequently during the early afternoon and evening hours

IMPACT OF CFTA/NAFTA ON U.S. AND CANADIAN AGRICULTURE

CFTA/NAFTA is estimated annually to add $1,430 million of U.S. agricultural exports to Canada and$1,884 million of Canadian agricultural exports to the United States. Thus CFTA/NAFTA contributed an estimated 25 percent of the $5.8 billion of U.S. agricultural exports to Canada in 1995. Classical welfare analysis was used to estimate the implications of free trade in the dairy, poultry, sugar, and other industries that continue to be protected. In aggregate, consumers benefit from liberalization by nearly$1 billion per year in each country. Losses to Canadian producers are absolutely and relatively greater than to U.S. producers. Overall deadweight gains are positive to each country. The annual combined two-country addition to national income ($292 million) totals a present value of$5.8 billion when discounted in perpetuity at a 5 percent rate.International Relations/Trade,

The Soul is We

Engage the soul, and you engage history - the history of a person and the history of a people. This statement should help us to perceive the soul as both a personal and communal reality

Raman spectra of GexAsySe1−x−y glasses

Various Ge–As–Se glasses spanning a mean coordination number (MCN) from 2.2 to 2.94 have been investigated using differential scanning calorimetry and Raman spectroscopy. The glass transition temperature Tg was found to increase with increasing MCN, except for those glasses located within the nanoscale phase-separated region of the phase diagram. The evolution of Raman features at wavenumbers from 150 to 350 cm⁻¹ exhibits two transitionlike features. Merging of the 225 and 250 cm⁻¹ modes at MCN=2.5 is a symbol of the extinction of Se–Se bonds. Additionally, the appearance of two modes at 280–290 and 170 cm⁻¹ at MCN>2.7 come from the defect modes of ethanelike Ge₂Se₆/₂. The increase in the scattering from these defects is an important factor leading to enhanced optical loss in the glasses with high MCN.This research was partly supported by the Australian Research Council through its Centres of Excellence and Federation Fellow Programs

Q-switched laser damage of infrared nonlinear materials

Q-switched laser-damage thresholds have been determined for six materials (proustite – Ag3AsS3, pyrargyrite – Ag3SbS3, cinnabar – HgS, silver thiogallate – AgGaS2, tellurium – Te, and gallium arsenide – GaAs) of interest for nonlinear optics in the medium infrared. Four TEM00 mode lasers were employed with outputs at wavelengths of 694 nm, 1.06, 2.098, and 10.6 µm. Damage has been found to be confined to the surface of the crystals and occurs for radiation intensities between 3 and 75 MW/cm2. Particular care is needed in the cutting and polishing of tellurium crystals if a high-damage threshold is to be achieved