1998 reports of the regional Associations.

Presents the reports of the regional Associations for 1998. The reports included here are: Eastern Psychological Association--Report of the Sixty-Ninth Annual Meeting; Midwestern Psychological Association--Report of the Seventieth Annual Meeting; New England Psychological Association--Report of the Thirty-Eighth Annual Meeting; Rocky Mountain Psychological Association--Report of the Sixty-Eighth Annual Meeting; Southeastern Psychological Association--Report of the Forty-Fourth Annual Meeting; Western Psychological Association--Report of the Seventy-Eighth Annual Meeting; Southwestern Psychological Association--Report of the Forty-Fourth Annual Meeting; and Southern Society for Philosophy and Psychology--Report of the Ninetieth Annual Meeting. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Fourier analysis of climatological data series in a tropical environment

Monthly-averaged 10-year climatological data series of global solar irradiation, average ambient temperature and mean relative humidity in Ibadan (lat. 7.43° N, long. 3.90° E), Nigeria, have been analysed using the Fourier series method. The pertinent amplitudes, phase angles, and harmonic angles have been obtained for each year of the series and for each variable. The study reveals that only the annual harmonic contributes in any significant way to explain the variance of the average temperature and the mean relative humitidy series, with percentages ranging between 57% and 91% for temperature and between 75% and 93% for the relative humidity. In the case of global solar irradiation, both the first and the second harmonics contribute almost equally to the total variance, with about 40% each. Typical annual time function parameters are provided for each of the three climatological variables.     

Proceedings of the seventy-third annual business meeting: Report of the Recording Secretary.

Presents the Report of the Recording Secretary regarding the Proceedings of the Seventy-Third Annual Business Meeting. The Secretary reports that it is particularly difficult this year to pick out a very few items for report because Council, for good reasons, completed only about 40% of its agenda. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

第四纪地质样品的ESR测年法

本文介绍了ESR测年法的发展、现状以及此方法的优越性。介绍了电子自旋共振的基本原理及ESR测年法的基本原理。并通过对周口店石笋样品年龄(6×10~4a)的测定具体介绍了此方法的实际运用过程。最后,就ESR测年法的一些有关问题进行了探讨。     

美国皮革化学家协会第101届年会介绍

介绍了美国皮革化学家协会第101届年会的情况,对会议交流的论文进行了综述。     

Proceedings of the Seventh Annual Meeting of the Southeastern Psychological Association.

"The program consisted of 10 symposia, 88 papers and 1 invited address." Titles of papers and their authors are listed. Names of new members for 1960-61, including affilitate members and student affiliates, are listed. From Psyc Abstracts 36:04:4AJ92G. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

A spreadsheet-based model demonstrating the nonuniform economic effects of varying reproductive performance in Ohio dairy herds

A spreadsheet-based model was developed to estimate the economic effect of varying reproductive performance in dairy herds. Scenarios were created to model an average cow with respect to production, herd lifetime, and reproductive events. Average milk yield per day of life as well as lifetime calf and replacement heifer production were examined. Additional inputs representing milk, feed, semen, calf, and salvage prices were used to calculate net cash flow for each day of herd life for the average cow in a scenario. Economic comparison of different scenarios was accomplished using an equivalent annual cash flow (annuity) methodology.Herd performance measures and prices representative of Ohio dairy herds were used to establish a baseline average cow that had a 160-d calving-to-conception interval [days open (DO)]. Alternative scenarios that differed from baseline in DO, annual culling rate, and feed and milk prices were created to characterize the effects of changes. Under scenario inputs representative of typical Ohio dairy herds, the model indicated that a lower annual culling rate (25%) was preferable to higher annual culling rates (34 or 45%). The model estimated maximum average milk yield per day of life to occur at 110 DO. At 34% annual culling rate, calves and replacement heifers produced per lifetime declined as DO increased; beyond 150 DO, the modeled cow produced less than 1 replacement heifer per lifetime. The model also estimated a loss of $1.37 per cow per year for a 1-d increase in DO beyond 160 d. At 20% higher feed and milk prices, the model estimated a loss of $1.52 per cow per year; at 20% lower feed and milk prices, the model estimated a loss of $1.23 per cow per year. Furthermore, the model suggested that the loss associated with a 1-d increase in DO changed as DO changed. Using baseline inputs, the model calculated losses for a 1-d increase of $0.44 per cow per year at 130 DO and $1.71 per cow per year at 190 DO. The nonuniform nature of the cost of additional DO is important to veterinarians and producers. The implication is that inefficient reproduction becomes marginally more costly to producers as performance declines and warrants increased attention. Conversely, marginal benefits of improved reproduction decrease as performance improves. Herds with strong reproductive performance have less opportunity to capture economic benefits of improvement.     

Program of the sixty-fifth annual convention.

Abstracts of papers and information concerning symposia of the 1957 APA convention are presented. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Société canadienne de psychologie: Rapports annuels.

Presents the committee reports of the Canadian Psychological Association, including a report on the annual convention held in Montreal on June 9-11, 1982. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

CPA-SCP Reports: 1972.

Annual reports for 1972 of the Canadian Psychological Association are provided. Various committee, federation, finance, budget, and publication reports are included. (PsycINFO Database Record (c) 2010 APA, all rights reserved)