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Since carbon nanotubes (CNTs) were discovered by Iijima in 1991, they have gained more and more attention by people because of their unique physical and chemical properties. The CNTs have one-dimensional nanostructure, high surface adsorption capacity, good conductivity and electronic ballistic transmission characteristics and therefore have excellent mechanical, electrical, physical and chemical properties. CNTs are ideal basic materials to make nanometer gas sensors. Nanometallic materials function as to enhance electrode activity and promote the electron transfer, so if composite nanometallic materials M (such as Au, Pt, Cu and Pd) and CNTs are used, all kinds of their characters of components would have coeffect. Electrochemical sensors by use of such composite as electrode would have a higher detection sensitivity.

CNTs were synthesized via chemical vapor deposition technique and were purified afterward. CNTs-M(Pt,Au) suspension was prepared by chemical deposition using spinning disc processor (SDP) and was coated on gold electrode. The modified electrodes were constructed, based on immobilization of glucose oxidase on an Au electrode by electrostatic effect. CNTs-Pt/ glassy carbon electrodes (GCE) electrodes were made by electrochemically deposition of platinum particles on GCE modified by CNTs. The microstructures of the harvested CNTs, CNTs-M (M = Au, Pt) were analyzed under scanning electron microscopy and transmission electron microscopy. The application of the sensor in medical detection has been evaluated.

The results shown that CNTs-Au biosensors exhibit good reproducibility, stability and fast response to glucose detection, it can be used in the clinic detection of glucose concentration in human serum. Using CNTs-Pt/GCE for formaldehyde detection exhibited high sensitivity and good reproducibility.

This study modified CNTs by using self-assembled techniques through SDP with nano Pt and Au by electrodeposition for the first time. CNTs-Pt/GCE electrode was prepared by depositing platinum particles electrochemically on GCE modified by CNTs. CNTs-Au-modified electrode was prepared by immobilization of glucose oxidase on an Au electrode first by electrostatic effect. Electrochemical behaviors of glucose at CNTs-Au and formaldehyde at CNTs-Pt/GCE were investigated by cyclic voltammetry.

Nowadays children from immigrant families are the fastest growing group of youth in the United States. Despite the fact that emerging research has highlighted the significance of strong partnerships between families and high-quality early childcare/education programs, many immigrant families face numerous barriers in accessing high-quality childcare/early education as well as establishing strong partnerships with centers. The purpose of this chapter is to explore the emerging challenges that immigrant families face in navigating the U.S. early childhood education system. This chapter first briefly reviews the literature on the role of family involvement in early childhood education within the general U.S. population. This is followed by a review of the unique funds of knowledge that immigrant parents engage in while interacting with their children at home. Then this chapter explores the barriers of immigrant families in developing strong partnerships with early childcare/education programs such as, communication, limited parental English proficiency, lack of public funding, acculturation, education, and cultural perceptions of involvement. Furthermore, this is followed by a focus on two distinct rising immigrant populations within the United States, Hispanic (specifically non-refugee) and refugee populations, and their unique sets of obstacles. Lastly, recommendations are provided for future practitioners and policymakers to support the establishment of stronger immigrant family and professional partnerships within early education and childcare settings.

Thin coatings are of great importance to minimize corrosion attack of steel in different environments. A review of recent work on electrodeposition and corrosion performance of Zn-Ni-based alloys for sacrificial corrosion protection of ferrous substrates is presented. The purpose of this study is to provide a systematic comparison of the corrosion resistances of Zn-Ni alloy coatings. The review contains key and outstanding comparisons of references for the period from 2007 to 2017. Binary and ternary Zn-Ni-based alloys were compared and contrasted to provide a good knowledge basis for selection of best coating system to steel substrates.

This article is a review article.

Zn-Ni-(X) alloys show great potential for replacing Cd metal in corrosion protection of steel substrates.

The research on plating of binary Zn-Ni alloys from aqueous electrolytes is now well advanced and these alloys show improved corrosion resistance compared to pure Zn. Pulse plated and compositionally modulated multilayer Zn-Ni alloy coatings showed enhanced corrosion properties compared to direct plated Zn-Ni coatings of similar composition.

The work on electrodeposition of Zn-Ni based alloys from ionic liquids is still scarce, yet these liquids show great promise in improving corrosion resistance and reducing coating thickness when compared to aqueous electrolytes. Advanced plating techniques in ionic liquids such as electromagnetic, compositionally modulated multilayer, pulse plating, ternary alloys and composites should be considered as these electrolytes avoid water chemistry and associated defects.

Deepor Beel is one of the Ramsar Site and a wetland of great biodiversity, situated in the south-western part of Guwahati, Assam. With urban development at its forefront city of Guwahati, Deepor Beel is under constant threat. The study aims to calculate the lake water volume from the water surface area and the underwater terrain data using a triangulated irregular network (TIN) volume model.

The lake water surface boundaries for each year were combined with field-observed water level data to generate a description of the underwater terrain. Time series LANDSAT images of 2001, 2011 and 2019 were used to extract the modified normalized difference water index (MNDWI) in GIS domain.

The MNDWI was 0.462 in 2001 which reduced to 0.240 in 2019. This shows that the lake water storage capacity shrank in the last 2 decades. This leads to a major problem, i.e. the storage capacity of the lake has been declining gradually from 20.95 million m³ in 2001 to 16.73 million m³ in 2011 and further declined to 15.35 million m³ in 2019. The fast decline in lake water volume is a serious concern in the age of rapid urbanization of big cities like Guwahati.

None of the studies have been done previously to analyze the decline in the volume of Deepor Beel lake. Therefore, this study will provide useful insights in the water resource management and the conservation of Deepor Beel lake.

At the end of the exercise, students will be able to identify the type of entrepreneur, apply Big Five Personality Traits characteristics of the successful entrepreneur, use the Porter five forces to define the company’s attractiveness, describe David’s three-stage framework, use David’s (2015) strategy formulation framework to propose appropriate strategies for a company, explain the interdependencies of the nine key elements of a business model and create the business model canvas.

The case focuses on Posh Nail Beauty (POSH), one of the leading manicure and pedicure companies in Malaysia. The case concentrates on the discussion of business development, business strategies and challenges of POSH.

The case study is suitable to be used by undergraduate students who are taking the courses such as entrepreneurship, business strategy and marketing related courses.

Teaching Notes are available for educators only. Please contact your library to gain login details or email support@emeraldinsight.com to request teaching notes. Pearce and Robinson (2013). Strategic management: Planning for domestic & global competition, (13th ed.). McGraw-Hill/Irwin, New York. • Posh Nail Spa. (2017), available at www.poshnailspa.my/ • Posh! Nail Spa Presents The First Nail Art Fashion Show in Malaysia. (2016), available at http://femalemag.com.my/beauty/posh-nail-spa-presents-first-nail-art-fashion-show-malaysia/ • Scarborough and Cornwall (2015). Entrepreneurship and effective small business management, (11th ed.). Pearson, England. • Siaw (2015). “How to nail it: Plus the do’s and don’ts,” The Star, Malaysia. • This Local Nail Salon Is Going Beyond Mere Manicures. (2017), available at http://marieclaire.com.my/beauty/local-nail-salon-posh-nail-spa/ • Torlak and Şanal (2007). David’s strategy formulation framework in action: the example of Turkish Airlines on domestic air transportation. İstanbul Ticaret Üniversitesi Fen Bilimleri Dergisi, 6(12), 81-114. • David (2011). Strategic management (Concepts and cases)(Global Edition 13e). Pearson, Upper Saddle River, New Jersey.

CSS 3: Entrepreneurship.

Among developing countries, the Republic of China in Taiwan (hereinafter Taiwan) has been experiencing economic growth accompanied by improving income distribution. Between 1964 and 1980, the average annual growth rate of the real gross national product was 9.92 per cent (Council for Economic Planning and Development (CEPD), 1982, p. 23). In the same period, the income ratio between the top 20 per cent and the bottom 20 per cent of families dropped from 5.33 to 4.17 and the Gini coefficient decreased from 0.36 to 0.30 (CEPD, 1982, p. 54; Directorate‐General of Budget Accounting and Statistics, 1980, (DGBAS), p. 44). To put it somewhat dif‐ferently, in 1964 the lowest fifth of households received 7.71 per cent of total personal income, and the highest fifth 41.07 per cent. But in 1980, the income share of the lowest fifth increased to 8.82 per cent while that of the highest fifth decreased to 36.80 per cent. The condition of greater equality in income distribution appears more obvious in the capital city of Taipei. In 1981, for instance, its Gini coefficient was estimated to be only 0.28 (Taipei Bureau of Budget, Accounting and Statistics, 1981, (TBBAS), P. 24).

Previous studies showed that the unconscious-intuitive strategy resulted in a better choice for it is more predictive of actual interest. This benefit may be influenced by occupational engagement, for the dual process of career decisions takes it as a tool for multidevelopment and optimal adjustment. Thus, we replicated (and extended) the study of Motl et al. (2018) through two experiments to identify the role of three pre-decisional strategies and then explore the combined effects of occupational engagement and these strategies. The purpose of this paper is to address these issues.

The authors replicated (and extended) the study of Motl et al. (2018) through two experiments. First, both studies adopted generalized linear mixed-effects models for statistical analyses to distinguish random and fixed effects. Second, Study 2 used a computer-based process-tracing program called “Mouselab” to explore the effect of the pre-decisional strategy self-generated on participants' interest appraisals over time.

Study 1 found that engagement helped promote participants' interest experience when decisions as usual and the intuitive strategy did not produce optimal choices. Further, people with more prior knowledge about situations no longer achieved as many benefits from their allocated strategy (i.e. rational strategy) as those with less. Study 2 failed to find adequate advantages of the intuitive strategy. Specifically, people with less search depth (the heuristic-intuitive strategy) were more interested in their choices. Nevertheless, when the strategy was manipulated as variability of search (VS), it only found the promotion of engagement, but it neither found the interaction between engagement and strategy nor did strategy itself.

The present paper provides mixed support for adaptive career decision-making. Career counselors can use occupational engagement levels as a reference for pre-decisional strategy selection and coach clients to adopt a proper decision-making process/method to make interest forecasts.

The organic food sold in China can bear organic labels from different countries/regions. The purpose of this paper is to assess the trust and preferences of consumers for tomatoes carrying these different labels.

The data came from real choice experiments conducted in Shandong Province, China. A mixed logit model was used to analyze consumer willingness to pay (WTP).

Results indicated that, among the four organic labels considered in this study, the highest WTP was expressed for organic label from the European Union, followed by Hong Kong’s organic label, Japanese organic label and, lastly, by the Chinese mainland organic label. Consumer trust has a positive effect on their WTPs for the four organic labels. Providing consumers with information on organic can significantly lift their WTPs, and reduce the gaps between WTPs for different organic labels.

This research is of academic value and of value to food suppliers. International food marketers are recommended to equip their products with proper organic labels and initiate additional consumer education.

The purpose of this paper is to explore two dimensions of leadership practices (i.e. teaching and learning and sources of power) used by two exemplary principals in mainland China against a background of education reform and to identify how broader contextual factors have shaped these two dimensions of their leadership.

An exploratory case study was used that drew upon semi‐structured interviews, observations and document analysis. Interviews were conducted with two principals, six teachers from each of the two schools and a superintendent who was the supervisor of the two principals.

The findings reveal that there are some common elements in both of the leaders' practices but also some subtle differences. Both leaders emphasise teaching and learning. One sees herself as curriculum expert; the other delegate teaching responsibilities. While both uses a top down approach, one principal uses an adversarial approach and the other a more facilitative approach.

The study used a small sample size. It explored the leaders' practices in the light of broader contextual factors rather than personal factors or gender‐based factors

Given the limited empirical research conducted on female principals in mainland China, this qualitative study provides insights into two dimensions of leadership used by two exemplary principals and explains their practices in the light of critical contextual factors such as contemporary and traditional Chinese culture and the school's organisational context.

The purpose of this paper is to examine challenges in the front end of innovation (FEI) and to propose a scenario‐based approach to alleviate some of these problems, particularly as regards uncertainty in opportunity recognition.

The paper answers the main research question through a literature review and a case study. The paper employs the design‐oriented approach to propose an artifact which solves the underlined problem, and validate the artifact through the case study.

According to the literature review, scenarios should offer a viable method for opportunity recognition. The case study supports the theoretical proposition, and suggests that scenarios can be used to alleviate the effect of uncertainty in the FEI.

The empirical results are limited to the level of proof‐of‐concept. The scenario process as such was rated positively, which corresponds to the theory and previous similar experiments, but the benefits of the scenario approach have yet to be verified. Practical implications are a novel method for finding and assessing new business concepts.

The main contribution of this paper is the formed process artifact to alleviate the challenges in the FEI. The scenario approach can be used to probe the near future for business development purposes.