Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 22 for “"productive life"”.
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Relationships among heifer traits, early-life productive traits, and lifetime productivity within Angus and Simmental female cattle
… relationships between calfhood and early-life traits of females with fertility in the first two breeding seasons, and with calf production in the first, in three and in eleven years of life. These traits were used to develop prediction equations for fertility using logistic regression …
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Does a Positive Male Role Model Affect the Achievement of Adolescent African-American Males? A Case Study
… a diploma is no guarantee of a successful and productive life; however, a high school graduate is more likely to avoid unemployment, poverty, and possible incarceration.</p>
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The Effect of Inbreeding on Lifetime Performance of Dairy Cattle
… scores on all cows scored between 1980 and 1993. Lifetime production information on these cows and their herdmates was used to calculate Relative Net Income adjusted for opportunity cost (RNIOC) for the 2,249,835 cows with an 84 month herdlife opportunity. The effect of inbreeding was analyzed …
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Evaluation of optimum and near optimum pair selection methods for increasing predicted relative net income in Jersey cattle
… between Relative net income per day of productive life (RNI/DPL) and individual traits, 921,915 potential offspring were simulated from all possible matings of 20,487 Jersey cows and 45 active AI sires. Predicted milk yield, fat yield, and 13 linear type traits of potential progeny were …
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The time(s) of our lives: Exploring and opening up alternative temporalities through the experience of disability
… time and fundamentally the neoliberal ethos of a productive life. This study strove to disrupt the domination of linear time and opposingly argued that these alternative relationships with time may be more well suited to the precarious nature of our lives. Guided by Rosemarie Garland-Thomson’s …
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Importance of body conformation in predicting longevity and wearability of dairy cows
… 80.1, predicted difference milk (PDM) -136, lifetime production 55,919 lb., production per day of productive life (PDL) 44A lb/day, age at last calving (AGE) 60. 1 mo., and percentage completing four lactations, 48.4%. Correlations between PDT and scorecard and descriptive traits were …
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An economic evaluation of the optimal ewe replacement policy for typical Canterbury light land and irrigated properties
… works. This is the result of the breeding ewe's productive life being traditionally determined by the state of its incisor teeth. The basis for this culling policy is that ewes with worn or missing teeth are considered unable to graze and therefore to produce satisfactorily. The study takes the …
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Relationships among estimated net income, herdlife and linear type traits in dairy cattle
… factors were developed for RNI and days of productive life (DPL) so that OC could be estimated from cows with shorter herd life opportunities. Within-herd correlations of RNI estimated from 84 month herdlife opportunity with that predicted from cows still alive at 36, 48, 60 and 72 months …
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Comparison of relative net income with and without the application of opportunity cost
… 60 month, 72 month, and all lactations herdlife period. Application of opportunity cost caused a decreased value for length of herdlife. Number of lactations initiated prior to the various herdlife periods was the criteria for deciding how much information was included in each of the …
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Nietzsche and Comedy: Provocative Laughter Amidst a Tragic Philosophy
… known as the philosopher of the tragic view of life. Because we are part of the world of becoming the tragic view maintains that human beings are given over to certain limits that we cannot transcend. These include ourselves as finite beings, the recognition that noumenal knowledge is not …
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Teachers’ and pupils’ views on teaching of comprehensive sexuality education in selected secondary schools in Chingola district, Zambia.
… health problems, preparing learners to live a productive life in the society, methods of preventive measures, how to live with people with HIV and AIDS, reduce rates of unwanted pregnancies, reduces rates of contracting sexual transmitted infections. As for challenges faced by the teachers and …
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Financially Optimal Culling Strategies for Western Canadian Cow-Calf Producers
… the depreciation of breeding females over their productive life, assessing the cash flow and ROA impact of different culling decision rules. When evaluating the ROA, depreciation is considered when calculating the accrual net income. Depreciation is a significant cost when looking at …
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Metabolic, reproductive, and performance evaluation in primiparous Nellore beef cows under grazing with different ages at breeding
… of this study was to evaluate the metabolic, reproductive and performance differences of primiparous Nellore cows, which became pregnant at 14 or 24 months. Thirty- eight primiparous Nellore cows with 200 ± 30 days of gestation were used, divided into two treatments: 14 - animals that became …
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Characteristics and allocation outcomes of patients assessed for the renal replacement therapy at Groote Schuur Hospital (2008-2012)
… in view of the loss of young and potential productive life. Advanced presentation of patients with ESRD represents challenges in early diagnosis and referral in the current system. Community screening programs and improved access to knowledgeable clinicians at the primary level is advocated. …
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GOOD WIVES: A STUDY IN ROLE DEFINITION IN NORTHERN NEW ENGLAND, 1650-1750
<p>This dissertation describes the productive, sexual, and public roles of married women living in the province of New Hampshire and the two Massachusetts counties which bordered it, Essex County to the south and York County (now Maine) to the north and east. Because there are no female diaries for …
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NMR Studies of Enhanced Oil Recovery Core Floods and Core Analysis Protocols
… oil recovery (EOR) processes to extend the productive life of oilfield wells. Laboratory-scale core floods, in which one fluid displaces another from the pore space of a rock core, are widely used in petroleum research for oilfield evaluation and screening EOR processes. Achieving both …
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Reasons Why Cows Were Removed From the SDSU Fairy Herd 1. Discriminant Analysis to Classify Cows with or without Reproductive Problems
… culling cows. It is well known that the average productive life of the dairy cow is less than 4 yr, which is short compared with her potential life. Involuntary removal of cows causes economic loss directly as a result of its effect on yearly milk production, increased replacement cost, and …
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Digital Rock: Understanding the mechanism of Enhanced Oil Recovery (EOR) Core Floods
… their return on investment by extending the productive life of their existing oilfields. For that purpose, a better understanding of the physical phenomena which occur during waterflooding and enhanced oil recovery (EOR) is needed to optimise the oil recovery. In this thesis, Nuclear Magnetic …
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Soy isoflavones and swine health
… challenges a pig may face throughout its productive life, with immediately post-weaning being a particularly vulnerable phase. A series of three experiments was conducted in order to investigate the effect of dietary soy isoflavones on the growth and immune responses of weaned pigs to a …
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Transitions out of crime: intentions, changes and obstacles on the road towards desistance
… uses mixed methods to explore the criminal and life trajectories within a sample panel of young male and female offenders in Chile. The present thesis contributes to the ways in which we understand, explain and research the process of moving away from crime. Perhaps the most crucial finding is …
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