1,720,971 research outputs found
Management Production Systems and Timing Strategies for Cull Cows
No full textRandomized complete block design with repeated measures was used to determine management production systems and timing strategies of cull cows, by comparing average daily gain, net returns, at feed cost per gain of grass and dry lot over 42, 78, 111, 134, and 164 days. Two management systems and five timing alternatives for cull cows were compared. Data were measured at intervals for cull cows on grass vs. in dry lot from October 2007 to April 2008. Cows in both treatments gained weight initially (42 days) but average daily gain declined following the first 42 days and cost of gain generally increased for longer feeding periods (78, 111, 134, and 164 days). Overall, net returns for grass-fed cows exceeded those for dry lot cows for each period. Regression results revealed average daily gain positively affected net returns while beginning weight and feed cost per gain were inversely related to net returns. Sensitivity analysis for grass fed cows indicated that net returns would be positive even at high feeding costs as long as prices adjusted to seasonal patterns. Net returns would be more positive when market prices were seasonally high and feed costs were low. Sensitivity analysis for dry lot showed that net returns would be positive when market price was unseasonally high, but net returns would be negative for nearly all others combinations of prices and feed costs.Department of Agricultural Economic
Analyse économétrique des déterminants de la consommation des produits alimentaires dans la commune de Tahoua au Niger
Get PDFThe non-diversification and poor quality diets have been identified as the main causes of disease in developing countries. The promotion of a balanced and varied diet offers promising alternatives for ensuring sustainable food and nutrition security. The objective of this study is to determine the perception of urban consumers on food products. Data was collected using an experimental setup while the best and worst method was used to analyze the data. Results suggest that value of plant based products is significantly higher than that animal based products. In addition, the results indicate that regardless of socioeconomic characteristics, grains, meat, spices, dairy products and vegetables are the food products most appreciated by consumers. However, men appreciate the more important category, while women prefer the less important. Young people opt for the choice of the most important and while the old go for the less important. For marital status, the choice of the least important among the married dominates, while the choice of the most important among the unmarried dominates. In education, the uneducated and the educated are indifferent between choosing the least important and the most important. When income is low, the choice of the least important outweighs that of the most important, while in the middle income category, the most important outweighs that of the least. Results of this study will make it possible to develop strategies aimed at promoting a healthy, balanced and diversified diet in order to significantly reduce hidden hunger, especially among children and pregnant women.
Keywords: Determinants, food and nutrition security, food products, consumersLa non diversification et la pauvre qualité des régimes alimentaires ont été identifiées comme les principales causes des maladies dans les pays en voie développement. La promotion d’un régime alimentaire équilibré et varié offre des alternatives prometteuses pour assurer une sécurité alimentaire et nutritionnelle durable. L’objectif de cette étude est d’évaluer la perception des consommateurs urbains sur les produits alimentaires. Les données ont été collectées à l’aide d’un dispositif expérimental tandis que la méthode du meilleur et du pire a permis d’analyser les données auprès de 160 consommateurs aléatoirement choisis. Les résultats suggèrent que la valeur des produits d’origine végétale est nettement supérieure à celle des produits d’origine animale. En plus, les résultats indiquent que quelles que soient les caractéristiques socioéconomiques, les céréales, la viande, les épices, les produits laitiers et les légumes sont les produits alimentaires les plus appréciés par les consommateurs. Les résultats de cette étude permettront de développer des stratégies visant à promouvoir une alimentation saine, équilibrée et diversifiée afin de réduire significativement la faim cachée surtout chez les enfants et les femmes enceintes.
Mots clés: Déterminants, sécurité alimentaire et nutritionnelle, produits alimentaires, consommateur
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Management Production Systems and Timing Strategies for Cull Cows
Get PDFReplaced with revised version of paper 06/04/09.Cattle, cull cows, management, marketing, production systems, timing, Farm Management, Marketing,
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Assessing newly introduced climate change adaptation strategy packages among rural households: Evidence from Kaou local government area, Tahoua State, Niger Republic
Get PDFThis research discusses new strategies developed and introduced by national and international partners to help farmers in building adaptative capacity against the negative externalities of climate change. The purpose of this study is to determine and to assess the most important adaptation strategies introduced by development partners. Based on the recognition interview with farmers and synthesis of previous research, 13 strategies were compiled and included in the study. Thus, an advance in the balanced incomplete block design was used to design the questionnaire served as data collection tools. For each question, respondents were asked to choose their best and their worst strategies. Thus, the difference between the best and worst strategies consistent with random utility theory was used for the modelling. Results show that herd rebuilding, human capacity building, introduction of fishing, water and soil conservation
activities, introduction of leafy vegetable such as Moringa oleifera, financial credit, forage seed marketing and introduction of agriculture inputs were the most important strategies, while the support to vegetable production, income-generating activities, the use of agricultural improved seed varieties, anti-fire band making and cereal bank introduction were the least important adaptation strategies for farmers. These results are therefore essential for the dissemination of adaptation strategies, thereby stimulating and maintaining sustainability development actions in the study area.http://dx.doi.org/10.4102/jamba.v9i1.38
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
- …
