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

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.     

Analyzing Food Science Research for Publishing Characteristics as a Model for Understanding the Needs of Researchers

Abstract

This paper provides a methodology to study the characteristics of the research output from a university department. The faculty publications and their cited references over a 10-year period were used as the basis for this study to identify their publishing patterns and the types of material they are publishing; a core set of journals and other resources they are publishing in and citing over this period; the characteristics of the journals in which they publish and cite; the degree of openness of their publications and their citation advantage; and the age of resources that are referenced.     

谈谈短跑训练的几点体会

根据少年短跑运动员生长发育和项目特点，探讨了以短跑技术为中心的全面身体训练，发展步长、步频、速度耐力，掌握跑的放松技能，心理训练，合理的营养等。     

利用现代高新技术整合潮汕美食文化资源--"潮汕美食多媒体数据库"研究开发与利用

以潮汕美食多媒体数据库为例，分析潮汕美食文化的内涵，阐述现代信息技术对潮汕美食文化的影响，介绍潮汕美食多媒体数据库的研究开发与利用，探讨利用现代高新技术，整合潮汕美食文化资源的新途径、新方法。     

DyCl3-KCl和DyCl3-CaCl2体系相图的热力学优化计算

1 Introduction Molten salts are considered to be used as fluid tar-gets in the nuclear incineration of transuranic elementswith proto accelerators .The molten salts are also usedas the media in high temperature chemical reprocess-ing of spent nuclear fuel of fast reactors .The phase di-agrams of rare earth metal halides in combination withalkali metal halide systems are of pri me i mportance inapplication. The thermodynamic properties and phase diagramsof the DyCl3-MClnsystems ( M =alkali or…     

Using a modified argument-driven inquiry to promote elementary school students’ engagement in learning science and argumentation

This study explored the effects of a modified argument-driven inquiry approach on Grade 4 students’ engagement in learning science and argumentation in Taiwan. The students were recruited as an experimental group (EG, n?=?36) to join a 12-week study, while another 36 Grade 4 students from the same schools were randomly selected to be the comparison group (CG). All participants completed a questionnaire at the beginning and end of this study. In addition, four target students with the highest and the other four students with the lowest pretest engagement in learning science or argumentation to be observed weekly and interviewed following the posttest. Initial results revealed that the EG students’ total engagement in learning science and argumentation and the claim and warrant components were significantly higher than the CG students. In addition, the EG students’ anxiety in learning science significantly decreased during the study; and their posttest total engagement in learning science scores were positively associated with their argumentation scores. Interview and observation results were consistent with the quantitative findings. Instructional implications and research recommendations are discussed.     

甲基纤维素修饰电极对H2O2电催化还原的研究

用甲基纤维素(MC)将过氧化氢酶(Cat)固载于热裂解石墨电极表面,制备了Cat-MC膜修饰电极.甲基纤维素膜中的过氧化氢酶与电极直接传递电子.在pH6.0的磷酸盐缓冲溶液中可得到一对可逆的过氧化氢酶辅基血红素Fe(III)/Fe(II)电对氧化还原峰,式电势为-0.331V(vsSCE).其式电势随溶液的pH值增加而负移且成线性关系,直线斜率为-38.0mV/pH,说明过氧化氢酶的电子传递过程伴随有质子的转移.并研究了过氧化氢酶修饰电极对H2O2的电催化性能.在H2O2一定浓度范围(15.6～110.1μmol/L)内,催化电流与H2O2浓度成线性关系.     

5-溴水杨醛甘氨酸修饰碳糊电极测定微量Cu2+的研究

在pH=9.0 H3BO3-Na2B4O7缓冲体系中,以5-溴水杨醛甘氨酸修饰碳糊电极为工作电极,Cu2 于 120mV(vs.SCE)处产生一灵敏的吸附波,其二阶导数峰电流与Cu2 浓度在4.0×10-9~8.0×10-7mol.dm-3范围内呈良好的线性关系,相关系数为0.9964,检出限为6.0×10-10mol.dm-3(3倍信噪比)。应用该法测定发样中Cu2 的含量,结果令人满意。     

纳米碳—PVC膜修饰电极测定镉

介绍了用纳米碳-PVC膜修饰电极测定痕量镉的新方法。优化了各种试验条件,如支持电解质的选择、pH值的影响、修饰剂的用量、富集电位及时间、扫描速率等。     

面点实践教学中工艺标准化探析

在当前面点教学中,大部分教师仍处于凭经验教学阶段,各类教学品种无定量的工艺参数和明确的质量标准,不同教师做法不一,且计量手段落后,概念模糊,制品质量不稳定,造成学生学习起来难度较大;实施面点工艺标准化教学,可使学生更快更好的掌握烹饪工艺和技能,同时增强了学生的标准化意识,为传统食品的工业化生产打好基础;工艺标准化是通过对教学品种的制作工艺进行定量研究,从它的原料性状、制作工艺、营养卫生、质量标准及饮食美学等几个方面着手,确定原料质量标准、制作工艺标准和产品质量标准来实现的。