A team-based approach to qualitative inquiry: the collaborative retreat

A team of researchers undertook a collaborative qualitative study to explore beginning dietitians' life experiences and the meaning ascribed to those experiences in the context of dietetic practice. Data were collected using Seidman's three-step in-depth phenomenological interviewing method with 12 beginning dietitians who were graduates of the three participating dietetic programs. We outline the collaborative research process and highlight a writing and data analysis technique described as the collaborative retreat, a face-to-face, two-day gathering that facilitated the researchers' collective decision-making and organization, discussion, and analysis of this complex qualitative data set. Use of a listening guide aided researchers' understanding and interpretation of participant voices. Researchers concluded that the overall collaborative qualitative research process was positive and self-fulfilling, and that it resulted in multiple benefits for them individually and the research project collectively. Researchers were able to work through methodological and theoretical issues as these arose, with the assistance of technology, writing, listening, and dialogue. Relationship building and relationship maintenance emerged as factors critical to the success of the research process. Collaborative research teams that are committed to listening, writing, and dialogue will find that the collaborative retreat can be a productive site of knowledge generation and mentorship.     

How uncertain are climate model projections of water availability indicators across the Middle East?

The projection of robust regional climate changes over the next 50 years presents a considerable challenge for the current generation of climate models. Water cycle changes are particularly difficult to model in this area because major uncertainties exist in the representation of processes such as large-scale and convective rainfall and their feedback with surface conditions. We present climate model projections and uncertainties in water availability indicators (precipitation, run-off and drought index) for the 1961-1990 and 2021-2050 periods. Ensembles from two global climate models (GCMs) and one regional climate model (RCM) are used to examine different elements of uncertainty. Although all three ensembles capture the general distribution of observed annual precipitation across the Middle East, the RCM is consistently wetter than observations, especially over the?mountainous areas. All future projections show decreasing precipitation (ensemble median between -5 and -25%) in coastal Turkey and parts of Lebanon, Syria and Israel and consistent run-off and drought index changes. The Intergovernmental Panel on Climate Change (IPCC) Fourth Assessment Report (AR4) GCM ensemble exhibits drying across the north of the region, whereas the Met Office Hadley Centre work Quantifying Uncertainties in Model ProjectionsAtmospheric (QUMP-A) GCM and RCM ensembles show slight drying in the north and significant wetting in the south. RCM projections also show greater sensitivity (both wetter and drier) and a wider uncertainty range than QUMP-A. The nature of these uncertainties suggests that both large-scale circulation patterns, which influence region-wide drying/wetting patterns, and regional-scale processes, which affect localized water availability, are important sources of uncertainty in these projections. To reduce large uncertainties in water availability projections, it is suggested that efforts would be well placed to focus on the understanding and modelling of both large-scale processes and their teleconnections with Middle East climate and localized processes involved in orographic precipitation.     

Fruit and vegetable consumption: benefits and barriers.

Few people on Prince Edward Island meet the goal of consuming five or more servings of vegetables and fruit a day. The main objective of this qualitative study was to explore the perceptions of the nutritional benefits and barriers to vegetable and fruit intake among adult women in Prince Edward Island. Participants were 40 women aged 20-49, with or without children at home, who were or were not currently meeting the objective of eating five or more fruit and vegetable servings a day. In-home, one-on-one interviews were used for data collection. Thematic analysis was conducted on the transcribed interviews. Data were examined for trustworthiness in the context of credibility, transferability, and dependability. Most participants identified one or more benefits of eating fruit and vegetables; however, comments tended to be non-specific. The main barriers that participants identified were effort, lack of knowledge, sociopsychological and socioenvironmental factors, and availability. Internal influences, life events, and food rules were identified as encouraging women to include vegetables and fruit in their diets. Given the challenges of effecting meaningful dietary change, dietitians must look for broader dietary behavioural interventions that are sensitive to women's perceptions of benefits and barriers to fruit and vegetable intake.     

高速A/D转换器的选择--在选择A/D变换器时,其应用场合是一条重要的依据

模数转换器是连接模拟和数字世界的一个重要接口.A/D转换器将现实世界的模拟信号变换成数字位流以进行处理、传输及其他操作.     

Physical activity and quality of life in multiple sclerosis: Possible roles of social support, self-efficacy, and functional limitations.

Objective: Quality of life (QOL) is compromised among individuals with multiple sclerosis (MS). Physical activity has been positively associated with QOL, but little is known about the factors that explain and/or confound the relationship in those with MS. On the basis of a social-cognitive perspective and previous research, the authors tested the hypothesis that physical activity would be indirectly associated with QOL through a mediated pathway that included self-efficacy and functional limitations, after controlling for perceived social support. Participants: Participants were 196 individuals with a definite diagnosis of MS living in the Midwest region of the United States who completed a battery of questionnaires and wore a pedometer and accelerometer for a 7-day period. Results: Covariance modeling analyses indicated that physical activity was indirectly associated with QOL through a pathway that included self-efficacy and functional limitations, and the pattern of relationships was independent of the perception of social support. Conclusions: The findings support physical activity as a possible modifiable behavior for mitigating reductions of QOL in those with MS and suggest that a social-cognitive model aids in the understanding of physical activity's relationships with QOL. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

A SiC MEMS Resonant Strain Sensor for Harsh Environment Applications

In this paper, we present a silicon carbide MEMS resonant strain sensor for harsh environment applications. The sensor is a balanced-mass double-ended tuning fork (BDETF) fabricated from 3C-SiC deposited on a silicon substrate. The SiC was etched in a plasma etch chamber using a silicon oxide mask, achieving a selectivity of 5:1 and etch rate of 2500 Aring/min. The device resonates at atmospheric pressure and operates from room temperature to above 300degC. The device was also subjected to 10 000 g shock (out-of-plane) without damage or shift in resonant frequency. The BDETF exhibits a strain sensitivity of 66 Hz/muepsiv and achieves a strain resolution of 0.11 muepsiv in a bandwidth from 10 to 20 kHz, comparable to state-of-the-art silicon sensors     

Characterization of vitrinite concentrates. 1. Fourier Transform infrared studies

A set of 21 vitrinite concentrates have been characterized by FTIR. Hydroxyl groups have been quantitatively determined by combining acetylation with FTIR procedures. Methods for the determination of extinction coefficients for various bands are discussed. Values are calculated by equating total hydrogen from elemental analysis to the fraction of hydrogen present as hydroxyl, aromatic CH and aliphatic CH groups. The variation in values of the extinction coefficients for aromatic and aliphatic CH bands are determined as a function of assumed values for the extinction coefficient of the OH bands. Large variations in the latter do not greatly affect calculated values of aliphatic and aromatic CH groups. The distribution of hydrogen between OH, aromatic CH and aliphatic CH groups is determined.     

Personal contact, individuation, and the better-than-average effect.

Research in which people compare themselves with an average peer has consistently shown that people evaluate themselves more favorably than they evaluate others. Seven studies were conducted to demonstrate that the magnitude of this better-than-average effect depends on the level of abstraction in the comparison. These studies showed that people were less biased when they compared themselves with an individuated target than when they compared themselves with a nonindividuated target, namely, the average college student. The better-than-average effect was reduced more when the observer had personal contact with the comparison target than when no personal contact was established. Differences in the magnitude of the better-than-average effect could not be attributed to the contemporaneous nature of the target's presentation, communication from the target, perceptual vividness, implied evaluation, or perceptions of similarity. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Preparation of polycrystalline films of NbO2 BY rf sputtering

Niobate films have been prepared by the radiofrequency sputtering of NbO₂ targets. Polycrystalline films have been deposited onto silicon substrates maintained at temperatures exceeding 620°C during preparation. Characterisation by X-ray diffraction indicates that the argon environment during sputtering must be doped with approximately 500 to 1000 ppm of hydrogen for the growth of films of niobium dioxide.     

Corrective Cultures: Romeo and Juliet, Jane Brown and the media

In this paper I offer a reading of the coverage in the popular press (tabloid and broadsheet) of the Jane Brown/Romeo and Juliet scandal, which hit the headlines in the United Kingdom (and was extensively reported in other Anglophone countries such as New Zealand, Australia and the USA) in January and February 1994. The paper traces the cultural and political contexts of the affair, arguing that the press coverage needs to be understood as part of a broader policing of the boundaries of sexuality, of education and of local authorities. As such, it is not an isolated incident, but one which contributes to the construction of lesbians and gays and of 'political correctness' as popular folk devils. Furthermore, it is argued that these constructions are intertwined with racist discourses through which lesbian and gay activism and antiracist activism are tied together, but often as conflicting in complex and contradictory ways.