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101.
基于赛博空间的图书馆员隐性知识共享 总被引:1,自引:0,他引:1
图书馆员的隐性知识是图书馆持续发展的动力,然而由于隐性知识本身特质导致其难以共享,其自身作用的发挥有所抑制。通过比较图书馆员隐性知识与赛博空间在文化特征方面的协调一致性,描述赛博空间对图书馆员隐性知识共享的拓展,凸显赛博空间是馆员隐性知识共享的有效方法。 相似文献
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介绍了基于森林防火专家系统的知识表示、知识获取和知识库组织的基本原理和方法,阐述了一种基于网络的知识库构建的一种新方案,使推理机的设计实现容易、知识库的维护更加灵活,实现了知识的获取功能以及网络多用户访问时的并发控制功能,克服了传统专家系统的弊端。 相似文献
104.
In the Yucatan peninsula of Mexico, Maya natives have been propagating important species for centuries. However, little documentation exists of these methods, and traditional knowledge is fading as younger generations seek work in urban centers. With growing interest in using some of these species for plantation-scale production, this knowledge should be captured to aid in propagation and cultural methods of selected species. One such species, Ramón (Brosimum alicastrum Sw.), is grown in Mayan homegardens primarily as a source of dry season forage. We conducted a survey of Mayan families in several municipalities to determine basic propagation habits and procedures for cultivating Ramón, and used this information to conduct some controlled-environment studies of reproductive ecology of the species. Our survey showed that all or most Maya grow the Ramón tree in homegardens for forage and that the tree is both cultivated from wild seedlings as well as planted on a small scale. Propagation is by seed and young seedlings are irrigated until they are established. We examined the effects of temperature on seed germination and found that maximum germination occurred between 27° and 38 °C, with best germination and growth of healthy seedlings at 33 °C. No germination occurred below 21° or above 44 °C. Simulated Maya irrigation gave a four-fold increase in growth rate of seedlings, aiding early establishment. Watering gave seedlings of greater biomass, greater stem and root length, and greater numbers and size of leaves. This magnitude of response may provide an economic return for plantation culture of Ramón for forage production. 相似文献
105.
This study of the pruning of néré (Parking biglobosa) trees in central Burkina Faso included detailed surveys of 83 trees and their owners in 21 villages. Pruning is not widespread, but appears to be a practice with various motives and techniques. The motives are mainly aimed at deliberate management of the trees, in order to enhance their fruit production, and are rarely aimed at reducing tree impact on crop productivity. The characteristics of tree pruning techniques (e.g., frequency, intensity and seasonality) and their corresponding motives appear to change as an adaptation to land degradation processes and the deterioration of tree condition. The results demonstrate that indigenous silvicultural management techniques contribute to a sustainable use of tree resources.
Résumé Cette étude sur la taille du néré (Parkia biglobosa) a été faite par des observations détaillées de 80 nérés et les entretiens avec leurs propriétaires dans 21 villages au Plateau Central du Burkina Faso. La taille du néré n'est pas générale, mais révèle diverses motivations et techniques. La plupart des motivations est orientée vers une gestion consciente de l'arbre en vue d'une amélioration de la production furitière, et rerament en vue d'une reduction de l'influence de l'arbre sur les cultures. Les caracteristiques des techniques de taille (fréquence, intensité, période de taille) et les motivations impliquées paraissent s'adapter à la dégradation de l'environnement et al détérioration de la viabilité des arbres. Les résultats montrent la durabilité des pratiques concernant la gestion des arbres.相似文献
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A. Rodriguez‐Ledesma M.J. Cobo C. Lopez‐Pujalte E. Herrera‐Viedma 《Zeitschrift für Tierzüchtung und Züchtungsbiologie》2015,132(6):475-497
The conceptual structure of the field of Animal Science (AS) research is examined by means of a longitudinal science mapping analysis. The whole of the AS research field is analysed, revealing its conceptual evolution. To this end, an automatic approach to detecting and visualizing hidden themes or topics and their evolution across a consecutive span of years was applied to AS publications of the JCR category ‘Agriculture, Dairy & Animal Science’ during the period 1945–2011. This automatic approach was based on a coword analysis and combines performance analysis and science mapping. To observe the conceptual evolution of AS, six consecutive periods were defined: 1945–1969, 1970–1979, 1980–1989, 1990–1999, 2000–2005 and 2006–2011. Research in AS was identified as having focused on ten main thematic areas: ANIMAL‐FEEDING, SMALL‐RUMINANTS, ANIMAL‐REPRODUCTION, DAIRY‐PRODUCTION, MEAT‐QUALITY, SWINE‐PRODUCTION, GENETICS‐AND‐ANIMAL‐BREEDING, POULTRY, ANIMAL‐WELFARE and GROWTH‐FACTORS‐AND‐FATTY‐ACIDS. The results show how genomic studies gain in weight and integrate with other thematic areas. The whole of AS research has become oriented towards an overall framework in which animal welfare, sustainable management and human health play a major role. All this would affect the future structure and management of livestock farming. 相似文献
108.
思想政治理论课实践教学是形塑学生思想的重要教学环节与手段。本文以Y大学多年运行模式以及近三年的网络调查和同行评价为基础,分析高校思想政治理论课实践教学的可行路径。分析结果表明:该模式解决了长期困扰思想政治理论课实践教学的难题;开设得好的思想政治理论课实践教学是比较受学生欢迎的,绝大部分学生都积极参与了该教学模块,是因为他们从中获得了知识与能力。实践证明,该模式找到了通往“彼岸”的基本路径。 相似文献
109.
Janne Rothmann Ole F. Christensen Eva Søndergaard Jan Ladewig 《Journal of Equine Veterinary Science》2014
Reactivity in horses, defined as a state of high arousal, has an impact on the daily handling and welfare of horses and can have an impact on the risk of causing human injuries. Behavior tests have been developed to assess reactivity, but these tests are difficult to apply in practice. The objectives of this study were to investigate how reactivity measured in a practical situation associates with rideability and performance and to explore the association between the measured reactivity and reactivity assessed by the horse's owner. A total of 234 Danish Warmblood females, 3 years of age, were videotaped and scored for reactivity during the evaluation of their conformation, and a questionnaire was completed by the owners. Associations between reactivity and performance traits were investigated by computing partial correlations (Pearson, rp). A low negative correlation was found between rideability and reactivity (rp = −0.16, P = .02) and between reactivity and free jumping (rp = −0.14, P = .03). These results suggest that highly reactive horses received lower grades in rideability and free jumping. However, no association with performance traits in dressage was found. Likewise, low but significant association was found between reactivity and ratings from owners (rp = 0.15, P = .02), indicating that horses considered to be nervous by their owners also were scored as reactive. In conclusion, it appears possible to measure reactivity in a practical situation. This study also concluded low negative associations between reactivity and the two performance traits rideability and free jumping. 相似文献
110.
指出了林业行政执法复杂且专业性要求强,林业业务知识对林业行政执法特别是林业行政处罚极为重要,通过专门人员或专业机构出具的林业勘验、检查或鉴定报告对案件性质或行政处罚裁量权起到了关键作用。结合实践探讨了林业行政执法人员掌握并依法运用林业业务知识,对林业行政执法水平、执法能力和执法效率、效果以及社会的影响。 相似文献