In laboratory medicine, several studies have described the most frequent errors in the different phases of the total testing process, and a large proportion of these errors occur in the pre-analytical phase. Schemes for registration of errors and subsequent feedback to the participants have been conducted for decades concerning the analytical phase by External Quality Assessment (EQA) organizations operating in most countries. The aim of the paper is to present an overview of different types of EQA schemes for the pre-analytical phase, and give examples of some existing schemes. So far, very few EQA organizations have focused on the pre-analytical phase, and most EQA organizations do not offer pre-analytical EQA schemes (EQAS). It is more difficult to perform and standardize pre-analytical EQAS and also, accreditation bodies do not ask the laboratories for results from such schemes. However, some ongoing EQA programs for the pre-analytical phase do exist, and some examples are given in this paper. The methods used can be divided into three different types; collecting information about pre-analytical laboratory procedures, circulating real samples to collect information about interferences that might affect the measurement procedure, or register actual laboratory errors and relate these to quality indicators. These three types have different focus and different challenges regarding implementation, and a combination of the three is probably necessary to be able to detect and monitor the wide range of errors occurring in the pre-analytical phase. 相似文献
Administrators need intense support in their early years in their jobs to master the demands of the position and to emerge as effective leaders for their schools. This article reports on a leadership coaching program offered by a university to support graduates as they transition to new school leadership roles. First year research results of the Program for New Principals indicate that all of the program participants felt that the coaching program was a positive addition to the induction experience for new administrators. New principals viewed coaching positively and emphasized that it is both a valuable and unique form of professional development. Both coaches and new principals cited personalized support as one of the coaching model's most significant assets. The results should inform the development of a model of leadership coaching for new administrators. 相似文献
The primary goal of this research was to extend our understanding of the strengths and weaknesses inherent in online and offline early literacy software programs designed for young learners. A taxonomy of reading skills was used to contrast online software with offline closed system (compact disc) based programs with respect to number of skills taught, quality of instruction and scaffolding during instruction. Overall, online programs were more comprehensive and provided instruction for more skills than offline software at either the Kindergarten or Grade 1 level. However, offline programs demonstrated some developmentally appropriate selectivity in skills trained. Quality of instruction was variable within and across all programs. Scaffolding of instruction was also variable and surprisingly few programs, either online or offline, provided automatic movement across levels of difficulty. These outcomes have important implications for the selection of instructional materials by parents and educators involved in early literacy instruction and also for future software design. 相似文献
Purpose: This paper reports the results of survey research conducted with tribal producers between 2011 and 2012 on 19 of the largest American Indian reservations in Idaho, Nevada, North Dakota, Oregon, South Dakota, and Washington. The purpose of the research was to identify potential barriers to sustainable agriculture on reservation lands. This article reports the results of this research in an effort to promote Extension professionals' understanding of these barriers, which may help to improve outreach programs on American Indian reservations. Understanding the obstacles to sustaining agriculture that American Indian tribes face may inform international agricultural outreach efforts to increase food security targeting indigenous and tribal peoples worldwide.
Design/Methodology/Approach: American Indian agricultural producers comprised the study group. Study objectives included: (1) identify agricultural and natural resource issues of greatest concern to a self-selected sample of tribal agricultural producers on reservation lands; (2) evaluate access to Extension and other US Department of Agriculture outreach and assistance programs; and (3) evaluate the quality of these programs in terms of their relativity to tribal needs.
Findings: Study results indicate that tribal agricultural producers surveyed ranked 29 of 39 agricultural and natural resource issues as a concern. Similarly, they rated access to and quality of outreach programs as fair. Further, tribal producers operating on reservation trust land rated issues more severely than did tribal producers operating on fee simple lands.
Practical Implications: Results of this research will help Extension and other outreach professionals to understand the barriers indigenous and tribal peoples face in sustaining agricultural operations, particularly tribal groups living on federally reserved trust lands, such as American Indians. An increased understanding can inform agricultural policy-makers and outreach professionals in improving programs designed to increase agricultural sustainability, improve food security, enhance economic well-being and improve quality of life of indigenous and tribal peoples worldwide.
Originality/Value: This research provides important information to agricultural policy-makers and Extension professionals striving to sustain agricultural productivity and enhance food security with indigenous and tribal peoples. 相似文献
Readers' advisory databases are used by public librarians to assist patrons in finding books based on the facts of the plot, the factors used to describe the appeal of the book, or read titles similar to another book they have read. Librarians depend on these databases to give a complete view of the titles available given these limiters, and may assume that identical searches in each database would give similar results. This study compares search results from four databases to see the extent of crossover within those results, using fact-based searches, appeal factor searches, and read-alike searches. 相似文献
The present study examined possible changes in the computer experience and attitudes of 11-12-year-old and 15-16-year-old students following a period in which ICT has become much more widely used in the school curriculum. In comparison with findings from a similar study undertaken in the early 1990s, there was some evidence of a reduced gender gap, particularly in the use of computers for applications such as word-processing, graphics, programming and maths. In addition, more recently introduced applications such as e-mail, accessing the internet and using CD-ROMs showed no overall gender difference in frequency of use. However, some gender differences remained, particularly in attitudes. Boys still liked computers more, were more self-confident in their use and, unlike previously, sex-typed them less than girls. They also used computers more frequently out of school, particularly for playing games. There was some evidence that, as found previously, older girls held the least positive attitudes, and it is suggested that their approach to computers may be influenced by the cultural pressures of gender stereotyping. More general age differences in use and attitudes were also found, and these may result from the different computing applications used by Year 7 and Year 11 pupils at school. In summary, although we found evidence of some change since the early 1990s, increased exposure to computes has not closed the gender gap. 相似文献
The collection, organization, and long-term preservation of resources are the raison d??être of archives and archivists. The archival community, however, has largely neglected science data, assuming they were outside the bounds of their professional concerns. Scientists, on the other hand, increasingly recognize that they lack the skills and expertise needed to meet the demands being placed on them with regard to data curation and are seeking the help of ??data archivists?? and ??data curators.?? This represents a significant opportunity for archivists and archival scholars but one that can only be realized if they better understand the scientific context. 相似文献
In this paper, Professor Ann Lewis, of the School of Education, University of Birmingham, reviews the literature and current research on pupils' perceptions of others' difficulties in learning. She focuses, in particular, on three strands: children's perceptions about other people and their traits; children as 'naïve' biologists, attempting to explain growth and development in others; and children's responses to and use of cues based on achievement and ideas about ability. In a wide-ranging discussion, this article explores work on theory of mind and notes the different ways in which children explain learning difficulties in others at various ages. In her conclusion, Professor Lewis makes three key points: there is a need to supplement experimental work in this area with good quality, classroom-based studies; more effort should be devoted to finding ways of accessing children's views and perceptions in authentic and reliable ways; and staff working in inclusive classrooms are ideally placed to contribute to the development of research in this area. 相似文献