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Abstract

Based on a conceptual framework, that describes the relationship between the effectiveness of up-scaling participation and implementing decentralisation, the objective of this paper is to analyse the effectiveness of decentralisation measures in the Agricultural Technology System (ATS) of Vietnam. It discusses whether the decentralisation efforts so far have enabled the rural population to express their options and take joint decisions in the sense of participation. The paper uses primary and secondary data, collected between November 2000 and June 2001. The paper first discusses the theoretical literature on up-scaling participation and decentralisation. Emphasis is given to highlight the links between the concepts of good governance in decentralisation and its effects on people's participation in the decision making process. Thereafter, the Vietnamese decentralisation measures are reviewed and it is assessed to which extent the agricultural sector and its relevant state agencies have benefited from these efforts. The experiences from the decentralisation activities is summarised. Whether decentralisation opened space for the rural people to express their opinions and to ensure that their preferences are incorporated in the ATS is specially considered. The paper closes with recommendations.  相似文献   
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Computer visualizations are increasingly common in education across a range of subject disciplines, including anatomy. Despite optimism about their educational potential, students sometime have difficulty learning from these visualizations. The purpose of this study was to explore a range of factors that influence spatial anatomy comprehension before and after instruction with different computer visualizations. Three major factors were considered: (1) visualization ability (VZ) of learners, (2) dynamism of the visual display, and (3) interactivity of the system. Participants (N = 60) of differing VZs (high, low) studied a group of anatomical structures in one of three visual conditions (control, static, dynamic) and one of two interactive conditions (interactive, non-interactive). Before and after the study phase, participants' comprehension of spatial anatomical information was assessed using a multiple-choice spatial anatomy task (SAT) involving the mental rotation of the anatomical structures, identification of the structures in 2D cross-sections, and localization of planes corresponding to given cross-sections. Results indicate that VZ had a positive influence on SAT performance but instruction with different computer visualizations could modulate the effect of VZ on task performance.  相似文献   
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Objective

A prevention form of the Incredible Years (IY) parenting program was offered to parents who had children enrolled in Head Start, regardless of whether they reported having a history of child maltreatment. This study compared whether parenting practices and child behavioral outcomes differed in families who self reported a history of child maltreatment relative to families who did not.

Methods

A site-randomized controlled trial of the IY parenting program was conducted in 64 classrooms in seven Head Start centers in Seattle, Washington. Families of 481 children took part in the study, with 335 in the IY condition and 146 in the control condition. Parenting practices and child behavior were measured by blinded raters through in-home observations and self-report questionnaires prior to the start of the IY program, in the spring after the IY program had concluded, and 12–18 months after study enrollment when children were in kindergarten. Analyses examine the impact of the IY program on parenting practices and children's behavior, exploring whether the program had differential impacts for parents with and without a self-reported history of child maltreatment.

Results

The IY program resulted in improvements along many parenting dimensions and on characteristics of observed child behavior. Program impacts were similar for parents who did and did not report a history of child maltreatment. However, parents with a reported history of prior maltreatment had greater initial room for improvement in areas such as harsh/critical parenting, nurturing/supportive parenting, and discipline competence than parents without such a history.

Conclusions

The IY parenting program has positive impacts for parents who self-reported a history of child maltreatment. While similar benefits were observed for both groups of parents in this study, results support delivering evidence-based parenting programs of longer duration and higher intensity than often used by agencies serving parents in contact with child welfare.

Practice

Agencies serving parents referred for child maltreatment should carefully examine the characteristics of the parenting programs they deliver. Use of a parenting program that has a sound base of empirical support, such as IY, and sufficient intensity and duration, is likely to make substantial changes in parents’ child-rearing practices.  相似文献   
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Measuring the similarity between the semantic relations that exist between words is an important step in numerous tasks in natural language processing such as answering word analogy questions, classifying compound nouns, and word sense disambiguation. Given two word pairs (AB) and (CD), we propose a method to measure the relational similarity between the semantic relations that exist between the two words in each word pair. Typically, a high degree of relational similarity can be observed between proportional analogies (i.e. analogies that exist among the four words, A is to B such as C is to D). We describe eight different types of relational symmetries that are frequently observed in proportional analogies and use those symmetries to robustly and accurately estimate the relational similarity between two given word pairs. We use automatically extracted lexical-syntactic patterns to represent the semantic relations that exist between two words and then match those patterns in Web search engine snippets to find candidate words that form proportional analogies with the original word pair. We define eight types of relational symmetries for proportional analogies and use those as features in a supervised learning approach. We evaluate the proposed method using the Scholastic Aptitude Test (SAT) word analogy benchmark dataset. Our experimental results show that the proposed method can accurately measure relational similarity between word pairs by exploiting the symmetries that exist in proportional analogies. The proposed method achieves an SAT score of 49.2% on the benchmark dataset, which is comparable to the best results reported on this dataset.  相似文献   
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The first exhibition in Vietnam to feature Vietnamese Catholics was held from December 10, 2008 to June 10, 2009 at the Vietnam Museum of Ethnology in Hanoi. The theme of this exhibition was “Catholic Culture as an Intrinsic Part of Vietnamese Culture.” The exhibition was organized by a State‐run museum against a background of difficult relations between the State and its Catholic communities. This article explores how the exhibition was conceived, and how the ideas of the curators were implemented by examining negotiations among different stakeholders involved in the exhibition.  相似文献   
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