Adoption of O2O food delivery services in South Korea: The moderating role of moral obligation in meal preparation     

《International Journal of Information Management》2019

Most studies on O2O services have focused solely on the technological merits of mobile applications, overlooking the role of the value systems that underlie people’s lifestyles.In contrast, this research sheds light on how people’s value systems influence their decision to adopt food delivery applications. Particularly, it proposes that people’s moral obligation in meal preparation can change the mode of thinking that guides their adoption decision. Namely, moral obligation is assumed to restrict people from acting on their basic convenience orientation in meal preparation. Empirical results have supported this assumption by showing that people with a high moral obligation (or married people) are more reluctant to convert their basic convenience-seeking tendencies into actual adoption intention than those with a low moral obligation (or single people). The important theoretical and managerial implications of these results are also discussed.  相似文献   

Food (in)security communication: a Journal of Applied Communication Research forum addressing current challenges and future possibilities     

Megan K. Schraedley  Hamilton Bean  Sarah E. Dempsey  Mohan J. Dutta  Kathleen P. Hunt  Sonia R. Ivancic 《Journal of Applied Communication Research》2020,48(2):166-185

ABSTRACT

This forum brings together food, (in)security, and communication. The authors participating in this forum center communication as both process and tool for understanding, mitigating, and making meaning of food (in)security. The nine authors together discuss the role of communication in food (in)security, the central challenges for scholars and practitioners working on food (in)security, and the creative possibilities and impacts influencing the future of food (in)security. The forum produces a call for applied scholars to re-imagine communication frameworks in order to make meaningful differences in their communities.  相似文献   

关于食品工业文献分类的研究(上)     

白国应 《江西图书馆学刊》2005,35(2):4-7,43

研究了食品工业文献分类的三个问题：食品工业文献的分类标准；食品工业文献的分类体系；食品工业文献的分类方法。  相似文献   

食物浓度及低浓度镉对水螅种群动态的影响     

鲍官柢  胡好远 《安徽教育学院学报》2005,23(3):91-93

在温度为20士1℃、自然光照(光照强度约为301x,L : D=14 : 10)条件下,分别以浓度为0.25ind/ml、0.5ind/ml、1.0ind/ml、2.0ind/ml枝角类(Cladocemans)为食物及在1.0ind/ml食物浓度下,应用单个体培养法及群体累积培养法研究了食物浓度及低浓度镉离子(0mg/l(对照组)、0.01mg/l、0.05mg/1)对水螅种群动态的影响.实验表明,食物浓度对水螅种群增长有一定影响,在较高食物浓度下水螅的种群增长率、净增长率普遍提高,而镉子浓度对水螅种群增长有显著影响.在较高离子浓度下,水螅种群增长率、净增长率较大,而世代时间相对缩短.  相似文献   

The Russian avant-garde painting palette: Documentary and physicochemical codification of organic colorants     

Elli Kampasakali  Evangelia A. Varella   《Journal of Cultural Heritage》2008,9(1):77-88

In the present article an attempt is made to elucidate the organic colorants commonly encountered in the Russian avant-garde painting palette by a combined art historical, documentary and physicochemical investigation, and to examine the influence of environmental factors on the chromatic profile originally sought by the artist. The overall approach based on written sources is confirmed by measurements on relevant paintings. The documentary research deals with the influences of Orthodox iconography, folkloric art, and occidental modernist tendencies on the Russian avant-garde palette, and studies the effects of contradictory historical processes in the chromatic profile of individual paintings. In the experimental section a series of colorants are investigated concerning the effects of accelerated ageing on experimental painting tables, prepared as watercolor and gouache layers on paper ground. The resulting samples are subjected to colorimetric and spectroscopic measurements, and analogous analytical procedures are applied on samples taken from selected paintings. A systematic comparative study of all data permits evaluation of the materials used in terms of their stability towards extrinsic factors, and proposal of degradation routes in order to assist museum curators and conservators in every concrete case related to the broad spectrum of pigments examined.  相似文献   

高校食品分析实验教学改革与创新     

吕丽爽 《科教文汇》2015,(8)

怎样提高食品分析实验课教学效果,培养学生的创新精神和实践能力,全面提高学生的综合素质,是食品分析实验课程改革的首要问题。本文主要从实验教学理念创新、实验教学内容创新、实验教学手段创新和实验教学考核制度的改革等方面阐述了食品分析实验课的教学改革。  相似文献   

探究式教学模式在食品免疫学课程中应用之管见     

杨万根  余佶 《科教文汇》2015,(12)

食品免疫学课程内容繁杂抽象,学生难学,教师难教。本文介绍了食品免疫学教学方法的现状及存在的问题,提出了在食品免疫学教学中引入探究式教学的观点,并分析了需要重点关注的内容,为食品免疫学探究式教学抛砖引玉。  相似文献   

《食品质量与安全专业导论》课程设置及实施效果分析     

刘浩宇 《北京城市学院学报》2015,(3)

以北京城市学院2014级食品质量与安全专业学生为样本,进行两次关于《食品质量与安全专业导论》课程设置及实施情况的调查,包括学生基本情况、课程期望、课程收获三个方面。结果显示本课程的教学内容和教学形式与学生的课程期望吻合,学生学有所获。针对本次调查集中反应出的问题,建议继续优化教学内容的课时比例,继续探索灵活的教学形式,将有利于进一步提高教学效果。  相似文献   

Red pigment production by Penicillium purpurogenum GH2 is influenced by pH and temperature     

Méndez A  Pérez C  Montañéz JC  Martínez G  Aguilar CN 《Journal of Zhejiang University. Science. B》2011,12(12):961-968

The combined effects of pH and temperature on red pigment production and fungal morphology were evaluated in a submerged culture of Penicillium purpurogenum GH2, using Czapek-Dox media with d-xylose as a carbon source. An experimental design with a factorial fix was used: three pH values (5, 7, and 9) and two temperature levels (24 and 34 °C) were evaluated. The highest production of red pigment (2.46 g/L) was reached with a pH value of 5 and a temperature of 24 °C. Biomass and red pigment production were not directly associated. This study demonstrates that P. purpurogenum GH2 produces a pigment of potential interest to the food industry. It also shows the feasibility of producing and obtaining natural water-soluble pigments for potential use in food industries. A strong combined effect (p<0.05) of pH and temperature was associated with maximal red pigment production (2.46 g/L).  相似文献   

Modeling of Light-Induced Changes in Reflectance Spectra: A Predictive Tool for the Effect of an Arbitrary Spectral Irradiance     

Beate Villmann  Gregor Peltri 《文物保护研究》2019,64(1):54-61

Optical radiation is capable of altering the spectral reflectance of layers of colorants. Light damage is of particular importance in respect to unique historical objects in exhibitions. The major parameter governing this process is the spectral irradiance applied to the surface. As this may vary significantly for different light sources, an experimental investigation of the damage potential of the numerous illuminants available is a cumbersome task. In this work a numerical algorithm for the prediction of modifications of the spectral reflectance of colorants subject to a given arbitrary spectral irradiance over a given time is presented. It uses the temporal evolution of the spectral reflectance of the dye or pigment at issue when irradiated by a set of narrowband light sources as input data. The predicted reflectance spectra and the resulting color changes are compared to those measured for samples irradiated with common polychromatic light sources. The concept described in this work aims at the implementation of a standardized procedure and database for the prediction of radiative damage for a comprehensive range of pigments and dyes.  相似文献