Consumer Awareness and Willingness to Pay for High-Pressure Processing of Ready-to-Eat Food     

Doris T. Hicks  Lori F. Pivarnik  Ryan McDermott  Nicole Richard  Dallas G. Hoover  Kalmia E. Kniel  Correction added after online publication May : Author's name corrected from Kalima E. Kniel to Kalmia E. Kniel 《Journal of Food Science Education》2009,8(2):32-38

ABSTRACT:  Commercial, nonthermal processing of food, such as high hydrostatic-pressure processing (HPP), has increased. The safety and quality of foods produced by HPP has not been well communicated to the public. An online, nationwide consumer survey was implemented to assess awareness of alternative food processing technologies, consumer food safety attitudes and knowledge, and willingness to pay (WTP) for HPP products. The consumer survey was administered by Zoomerang™, an online survey clearinghouse. The survey was completed by 1204 adults. Frequencies and crosstabs were calculated on Zoomerang and SPSS used for one-way ANOVA and chi-square analyses. The survey assessed knowledge of HPP, attitudes about new food processing techniques, WTP for HPP foods and demographics. Overall, many demographic characteristics reflected U.S. census population. While traditional methods, that is, canning, freezing, and microwaving were all well recognized by over 80% of respondents, only 8% recognized HPP. Trends indicated an increase in age, education, and income reflected greater food safety knowledge. Regardless of demographics, no survey respondent exhibited knowledge mastery (80%). Given an explanation of HPP and its benefits, 39% of respondents indicated they would be WTP an additional cost, with higher income and education having the most impact. Majority of respondents indicated a WTP of $0.25 to $0.50 regardless of the value of the food product. More respondents were WTP slightly more for a more expensive product. New technologies often encounter a stumbling block in consumer acceptance and processing costs. A consumer's WTP, once they were informed, could encourage industry to look favorably on this technology.  相似文献   

Prediction of maximal lactate steady state in runners with an incremental test on the field     

Leti T  Mendelson M  Laplaud D  Flore P 《Journal of sports sciences》2012,30(6):609-616

During a maximal incremental ergocycle test, the power output associated with Respiratory Exchange Ratio equal to 1.00 (RER = 1.00) predicts maximal lactate steady state (MLSS). We hypothesised that these results are transferable for runners on the field. Fourteen runners performed a maximal progressive test, to assess the speed associated with RER = 1.00, and several 30 minutes constant velocity tests to determine the speed at MLSS. We observed that the speeds at RER = 1.00, at the second ventilatory threshold (VT2) and at MLSS did not differ (15.7 ± 1.1 km · h?1, 16.2 ± 1.4 km · h?1, 15.5 ± 1.1 km · h?1 respectively). The speed associated with RER = 1.00 was better correlated with that at MLSS (r = 0.79; p = 0.0008) than that at VT2 (r = 0.73; p = 0.002). Neither the concentration of blood lactate nor the heart rate differed between the speed at RER = 1.00 and that at MLSS from the 10th and the 30th minute of the constant velocity test. Bland and Altman analysis showed a fair agreement between the speed at MLSS and that at RER (0.2 ± 1.4 km · h?1). This study demonstrated that the speed associated with RER = 1.00 determined during maximal progressive track running allows a fair estimation of the speed associated with MLSS, markedly decreasing the burden of numerous invasive tests required to assess it.  相似文献   

Handwriting evaluation for developmental dysgraphia: Process versus product     

Rosenblum  Sara  Weiss  Patrice L.  Parush  Shula 《Reading and writing》2004,17(5):433-458

The act of writing presents difficulties for10–30% of elementary school children. Thisstudy's objectives were to compare theabilities of digitizer-based evaluation of thehandwriting process and conventional evaluationof the handwriting product to discriminatebetween children with proficient and dysgraphichandwriting. Copied and dictated writingsamples were collected from 3rd grade students,50 with proficient and 50 with dysgraphichandwriting. Results indicated that bothdigitizer-based and conventional evaluationsdifferentiated between children with proficientand dysgraphic handwriting, and that togetherthey provided an improved understanding ofwriting difficulties. Moreover, copying anddictated writing task results differed significantly.The results demonstrate theadvantages of combining both handwritingprocess and product testing, and utilizing bothcopying and dictation tasks, in order toachieve a more comprehensive understanding andsuperior evaluation of developmentaldysgraphia.  相似文献   

Late Entry into Primary School in Developing Societies: Findings from Cross-National Household Surveys     

Yuko Nonoyama-Tarumi  Edilberto Loaiza  Patrice L. Engle 《International Review of Education/Internationale Zeitschrift für Erziehungswissenschaft/Revue internationale l'éducation》2010,20(1):103-125

Late entry into primary school is a widespread phenomenon in developing countries. Students who enter school late are more likely to repeat grades, drop out and perform more poorly. Yet the phenomenon has received little scholarly attention, and there is a dearth of cross-national data. In this paper, we draw on data from the Multiple Indicator Cluster Survey (MICS2), a cross-national household survey conducted in developing countries. We first estimate the percentage of students entering primary school late across 38 countries in order to identify the countries in which the issue of late entry is most common. Secondly, we describe the background characteristics of students who are more likely to enter school late. We then employ multinominal logistic regression equations to predict the probability of late entry. Our findings highlight the need for policies to reduce late entry for children from disadvantaged backgrounds.  相似文献   

A secondary reanalysis of student perceptions of non‐traditional writing tasks over a ten year period     

Mark A. McDermott  Brian Hand 《科学教学研究杂志》2010,47(5):518-539

This study aims to add to the growing research related to the implementation of non‐traditional writing tasks in classrooms to encourage science literacy. A secondary reanalysis methodology was employed to review student interviews collected as a part of several individual studies during a ten year research program. This method established an interpretive framework different than the particular frameworks guiding the individual studies. In doing so, a greater ability to generalize findings was sought. Main assertions emerging from the student responses analyzed include recognition of benefits of non‐traditional writing, recognition of the need for particular task characteristics to encourage these benefits, and recognition of greater cognitive activity than is present in typical science classroom writing. © 2009 Wiley Periodicals, Inc. J Res Sci Teach 47: 518–539, 2010  相似文献   

Building open government     

Patrice McDermott 《Government Information Quarterly》2010

On his first full day in office, President Obama issued a Memorandum on Transparency and Open Government calling on his administration to develop recommendations that would “establish a system of transparency, public participation, and collaboration.” Together, the recommendations would be used to create an “Open Government Directive” instructing agencies to transform themselves to become more transparent, collaborative, and participatory. The President also issued a Memorandum on the Freedom of Information Act (FOIA). These statements did not spring ex nihilo from President Obama and his aides (or even from the army of organizations and individuals who advised them or submitted recommendations during the transition). They have a basis in extant law and regulation, and it this basis at which this article looks.  相似文献   

Effects of a phase change cooling garment during exercise in the heat     

Cory L. Butts  Madeline L. Torretta  Cody R. Smith  Adam J. Petway  Brendon P. McDermott 《European Journal of Sport Science》2017,17(8):1065-1073

The purpose of our study was to examine the physiological, perceptual, and performance effects of wearing a phase change cooling garment (CG) during an interval exercise routine in the heat. Sixteen male participants (age 23?±?3 years, ht 1.76?±?0.11?m; wt 78.5?±?11.2?kg; body fat 15.2?±?5.8%) completed two trials (one with phase change inserts, CG, and one control without inserts) consisting of two submaximal exercise portions separated by 5-minute seated rest, and a final maximal effort performance bout. Each submaximal bout involved 30?seconds or 1?minute of muscular endurance and agility exercises and 5?minutes of treadmill jogging and step-ups. The performance bout included 30?seconds or 1?minute of muscular endurance and agility exercises, with participants completing as many repetitions as possible, followed by a 15-minute recovery (active and passive). Rectal temperature (T_re) and heart rate were not different between trials, however change in T_re from baseline was improved during 10 and 15 minutes of recovery with the CG (P?<?.05). Mean skin temperature was lower using the CG vs control throughout the trial (P?<?.05). Thermal sensation was lower when using the CG compared to control (P?<?.001). There were no differences in any outcomes of the performance exercises (P?>?.05). These findings indicate that the continuous use of a CG during an interval style workout in the heat provides improvements in thermal sensation, however, only minimal thermophysiological benefits, and no performance augmentation.  相似文献   

Portrayals of Bullying: A Content Analysis of Picture Books for Preschoolers     

Patrice A. Oppliger  Ashley Davis 《Early Childhood Education Journal》2016,44(5):515-526

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Designing ionic channels in novel carbons for electrochemical energy storage     

Jianglin Ye  Patrice Simon  Yanwu Zhu 《国家科学评论(英文版)》2020,7(1):191

Tremendous efforts have been dedicated to developing high-performance energy storage devices based on the micro- or nano-manipulation of novel carbon electrodes, as certain nanocarbons are perceived to have advantages such as high specific surface areas, superior electric conductivities, excellent mechanical properties and so on. In typical electrochemical electrodes, ions are intercalated/deintercalated into/from the bulk (for batteries) or adsorbed/desorbed on/from the surface (for electrochemical capacitors). Fast ionic transport, significantly determined by ionic channels in active electrodes or supporting materials, is a prerequisite for the efficient energy storage with carbons. In this report, we summarize recent design strategies for ionic channels in novel carbons and give comments on the promising features based on those carbons towards tailorable ionic channels.  相似文献   

PERSISTENCE OF THE INTUITIVE CONCEPTION THAT HEAVIER OBJECTS SINK MORE: A REACTION TIME STUDY WITH DIFFERENT LEVELS OF INTERFERENCE     

Patrice Potvin  Steve Masson  Stéphanie Lafortune  Guillaume Cyr 《International Journal of Science and Mathematics Education》2015,13(1):21-43

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