Generation Y consumers’ selection attributes and behavioral intentions concerning green restaurants

The objectives of this study are to examine the Generation Y consumer segments’ selection attributes and behavioral intentions toward green restaurants. A survey was administered to college students between the ages of 17 and 30 at a university in a Southeastern United States city. This study identified four different consumer segments of Generation Y college students according to their food-related lifestyles. Across the four segments, there were significant differences in selection attributes. In addition, significant differences were identified between the four segments regarding their behavioral intentions toward green restaurants. Finally, the marketing implications for the target groups are discussed.     

Four Mexican dreams: What will drive the Mexican millennial to invest?

The American Dream is a well-researched concept, but what would be its equivalent for Mexico? We investigate the Mexican Dream for young adults (25 to 35 year old Mexicans). The aim of the study is to develop an understanding of the core values of young Mexican adults reflected in their consumer behavior in the financial sector. We implement a cross-cultural consumer behavior framework by David Luna, in order to consider factors like culture, and value systems to uncover the Mexican Dream for young Mexican adults. In order to gather data for this study, six focus group discussions of key informants were carried out in specific areas, such as consumer behavior, futures images and Mexican culture among others. The results suggest that the core drivers of the Mexican Young adults, known as Generation Y, differ from the traditional cultural values in several ways. The results are used to create four images of the future in order to understand the young Mexican adults core drivers for the future: 1) Following the North Americans image describes a future based on the traditional Mexican values updated with a modern twist; 2) The Muddling Through image describes a future where the most important aspects of life go wrong; 3) the Telenovela combines positive and negative aspects in an image of the future; and 4) the Going European image strives for a civilized individualism within a welfare state.     

The increasing internationalization of the international business classroom: Cultural and generational considerations

This article reviews the dynamic demographics of the international business classroom across five Anglo countries: the U.S.A., the UK, Australia, New Zealand, and Canada. Figures indicate that business education is becoming increasingly international, and that the countries of origin of international business students are changing. Cultural impacts of this increasing internationalization upon international business pedagogy—as well as issues of generational expectations of the classroom experience—are considered, benefits and challenges of the increased cultural diversity in the classroom are discussed, and practical suggestions for instructors teaching in future international business classrooms are detailed.     

HOW LARGE IS THE PRIVATE SECTOR IN AFRICA? EVIDENCE FROM NATIONAL ACCOUNTS AND LABOUR MARKETS

In recent years, the private sector has been recognised as a key engine of Africa's economic development. Yet, very little is known about its size and characteristics. We present novel estimates for 50 African countries and show that the private sector accounts for about two thirds of total investments, four fifths of total consumption and three fourths of total credit. Countries with small private sectors include a sample of oil exporters and some of the poorest countries in the continent. Surprisingly, the size of the private sector does not appear to be significantly correlated with growth performance. Labour market data reinforce the idea of a large private sector, which provides about 90% of total employment opportunities. However, most of this labour is informal and characterised by low productivity: permanent wage jobs in the private sector account on average for only 10% of total employment. South Africa is the notable exception, with formal wage employment in the private sector representing 46% of total employment. Finally, we find evidence of negative private sector earning premiums (?13% on the average), suggesting that market distortions abound. These are likely to prevent the efficient allocation of human resources and to reduce the overall productivity of the African economies.     

缓倾斜薄煤层下行风及矸沙填充沿空留巷集成技术研究

沿空留巷技术和Y型通风技术是近年来煤矿生产中应用的新技术,然而上述技术还存在成本越来越高,瓦斯治理困难的问题。本文在三汇一矿倾角20°采煤工作面中实施下行式Y型通风及沿空留巷技术,并用矸沙充填。结果表明该技术能明显降低瓦斯浓度,同时,既能保持巷道稳定而不需再次维修,又能明显降低漏风率和采煤工作面粉尘浓度,改善采煤工作面环境,降低成本,提高效率。     

Some Economics of Public Statistics

Public statistics are an important part of the information needed for efficient and effective agricultural and rural policy. Experience of several decades of work at the interface of statistics and policy, in particular on income measurement in agriculture, suggests that there are systematic failures in the process by which statistics are fed into policy decisions, although their nature and extent can be expected to vary across types of policy. These failures include poor recognition of the need for information and conceptual obsolescence in methodologies. The explanations for these failures are likely to include the unwillingness of policy‐makers to articulate their objectives clearly, various interests in not having better statistics, the limited independence of agricultural statisticians from departments responsible for policy, and the low level of engagement by academics. Ways of improving the situation are explored.     

基于遗传算法的网络入侵检测技术分析与研究

随着互联网规模的日益扩大,网络安全问题也变得越来越尖锐。如何提高网络入侵检测技术也变为一个业界重点课题。本文主要分析了遗传算法在网络入侵检测中的应用。     

The role of time preference and credit card usage in compulsive buying behaviour

College students represent a lucrative market for businesses selling a wide array of goods and services, including credit. One area of concern regarding credit debt is its association with compulsive buying behaviour. This study analysed compulsive buying behaviour within an economic framework using a college student sample. Data were collected from 7342 students enrolled in a major Midwestern university. Regression analysis revealed that income, rate of time preference, money attitudes, credit card usage and gender were significantly related to compulsive buying. This study provides useful information for developing, or revising, university policies regarding financial education and counselling, as well as curriculum considerations.     

巢式-多重RT-Realtime PCR检测马铃薯Y病毒脉坏死株系的方法

马铃薯Y病毒脉坏死株系（Potato virus Yvein necrosis strain,PVY^n）是马铃薯中一个非常重要的病毒病害。本研究根据PVYn基因组中RNA依赖的RNA聚合酶（RNA dependentRNA polymerase,RDRP）基因序列保守区域,设计合成了两对巢式PCR引物和一条TaqMAN荧光探针,建立了巢式-多重RT-Real-time PCR检测PVY^n的新方法。该方法采用E.Z.N.ATM快速提取植物总RNA,并有机地结合了巢式PCR、多重PCR和探针检测技术。实验结果表明,本方法检测的准确性、灵敏度比巢式PCR、单重Real time PCR等方法高。该方法检测灵敏度可达3 fg/μL植物总RNA。利用四对引物和一条TaqMAN探针对PCR阳性产物进行确认,检测的准确性比其它方法高。     

改性Y沸石和ASA载体负载Ni-W金属组分催化剂的重油加氢性能研究

通过化学脱铝＋水热处理的方法制备改性高硅DAY沸石,并用XRD、NH3-TPD、IR、XRF等方法对其表面性质进行了表征.以改性高硅DAY沸石和ASA为载体,采用浸渍法负载Ni-W金属组分制成催化剂.在1 00ml固定床小型加氢装置上,以大庆VGO为原料,在P（H2）=15.0MPa,V（H2）/V（oil）=800,WHSV=1.0h-1,和T=380～410℃的工艺条件下,对催化剂的重油加氢性能进行了评价.研究结果表明,催化剂具有优异的重油加氢性能,在反应温度390℃的条件下,催化剂的加氢脱硫率96.7%、加氢脱氮率99.1%,中油选择性高达80.7%.