Practice and reflection of principals’ transformative curriculum leadership in a Taiwan KIST school

Huan‐Kan Tseng,Chuan‐Chung Hsieh,Robin Jung‐Cheng Chen 한국교육개발원 2021 KEDI Journal of Educational Policy Vol.18 No.2

This study adopts the framework of transformative curriculum leadership theory, focused on one privatized school, the KIST (KIPP Inspired Schools in Taiwan) school, as a case study. The authors mainly utilize interview methods to explore the practices of principals’ transformative curriculum leadership in the KIST school, and find that the case of school principal leadership successfully integrates the interactions from the school autonomy, the local educational authority, and the private foundation into a driving force to develop a new educational model. Such results not only restructure the subjectivity of school education, but also effectively provide the reference framework for policy correction and solutions to the contemporary problems of rural education.

Prediction of the Duration to Next Admission for an Acute Affective Episode in Patients with Bipolar I Disorder

Pao-Huan Chen(Pao-Huan Chen),Chun-Ming Shih(Chun-Ming Shih),Chi-Kang Chang(Chi-Kang Chang),Chia-Pei Lin(Chia-Pei Lin),Yung-Han Chang(Yung-Han Chang),Hsin-Chien Lee(Hsin-Chien Lee),El-Wui Loh(El-Wui Lo 대한정신약물학회 2023 CLINICAL PSYCHOPHARMACOLOGY AND NEUROSCIENCE Vol.21 No.2

Objective: Predicting disease relapse and early intervention could reduce symptom severity. We attempted to identify potential indicators that predict the duration to next admission for an acute affective episode in patients with bipolar I disorder. Methods: We mathematically defined the duration to next psychiatric admission and performed single-variate regressions using historical data of 101 patients with bipolar I disorder to screen for potential variables for further multivariate regressions. Results: Age of onset, total psychiatric admissions, length of lithium use, and carbamazepine use during the psychiatric hospitalization contributed to the next psychiatric admission duration positively. The all-in-one found that hyperlipidemia during the psychiatric hospitalization demonstrated a negative contribution to the duration to next psychiatric admission; the last duration to psychiatric admission, lithium and carbamazepine uses during the psychiatric hospitalization, and heart rate on the discharge day positively contributed to the duration to next admission. Conclusion: We identified essential variables that may predict the duration of bipolar I patients’ next psychiatric admission. The correlation of a faster heartbeat and a normal lipid profile in delaying the next onset highlights the importance of managing these parameters when treating bipolar I disorder.

CONNECTING OR DISCONNECTING: LUXURY BRANDS’ SOCIAL MEDIA STRATEGIES AND AFFLUENT CHINESE FEMALE CONSUMERS’ INTERPRETATIONS

Huan Chen,Ye Wang 글로벌지식마케팅경영학회 2016 Global Marketing Conference Vol.2016 No.7

With its fast growing economy and huge population, China has become one of the most lucrative markets for luxury brands (Zhan and He 2012). In fact, China has surpassed Japan and become the No.1 luxury products spender in the world, accounting more than one-quarter of the global luxury brand expenditure (Artsmon et al. 2012). Chinese middle-class consumers thus have become important targets of luxury brands (Zhan and He 2012). However, China’s culture is different from Western cultures (Li, Li and Kambelle 2012), and Chinese luxury consumers have their distinctive characteristics (Buchwald, 2015). Therefore, Chinese luxury consumption may not follow the trends of Western world (Li, Li and Kambelle 2012). Previous studies have explored Chinese luxury consumers’ perceptions and receptivity of luxury brands in different cultural contexts (Bian and Forsythe 2012; Wang, Sun and Song 2011; Zhan and He 2012; Wang, Sun and Song 2011; Li, Li and Kanbelle 2012; Oswald 2010, Li and Su 2007; Wang and Ahuvia 1998). However, all those studies have only investigated luxury brands’ marketing strategies in traditional offline worlds. With the emergence of digital technology, luxury brands have started building presence in online world through different digital marketing strategies (Okonkwo 2009). Among all the digital marketing tools, social media marketing has become an increasingly important marketing communication weapon (Kim and Ko, 2012). While the luxury brands have widely accepted social media marketing, the academic research largely lags behind, Only limited number of studies have examined luxury brands’ social media marketing strategies (Tynan, McKechnie, and Chhoun, 2010; Kim and Ko, 2012). No study, to the authors’ knowledge, has been conducted to investigate luxury brands’ social media marketing strategies in connecting with Chinese consumers. In addition, previous studies on luxury brands marketing have conducted either quantitatively (Bian and Forsythe 2012; Wang, Sun and Song 2011; Zhan and He 2012; Wang, Sun and Song 2011; Li, Li and Kanbelle 2012) or qualitatively (Oswald 2010, Li and Su 2007; Wang and Ahuvia 1998) from either consumers’ or marketer’s perspective. In order to fill the research gaps, the current study is designed to explore the phenomenon with a mixed method by integrating both marketers’ social media marketing strategies and consumers’ interpretation of those marketers’ social media marketing in the contextof China. Specifically, a quantitative content analysis was conducted to examine marketers’ social media marketing strategies on a Chinese social media platform: WeChat; in the meanwhile, a qualitative study was conducted to explore Chinese female affluent consumers’ interpretations of those social media strategies transmitted via WeChat. Based on the research purpose, two overarching research questions were proposed: R1: Do Western luxury brand use social media platform of WeChat to build social presence, create self-presentation or interact with consumers? R2: What are Chinese female affluent consumers’ perceptions and interpretations of luxury brands’ social media marketing communication strategies via WeChat? Methodology The current study used a mixed methodological approach (Creswell 2014). Specifically, a quantitative content analysis (Krippendorff 2012) and a phenomenological study (Creswell 2012) were conducted to investigate luxury brands’ social media marketing communication strategies via WeChat and Chinese female affluent consumers’ perception toward those marketing communication strategies. Initial Findings Study 1 So far, 50% (N = 60) of the sample was analyzed. RQ1 asked about the luxury brands’ marketing communication strategies. The initial frequencies of each coded variable are reported in Table 1. Table 1. Frequencies of Coded Variables The results showed that more than half of the coded messages had images, showed products/brands in images or videos, provided event, discount and other promotional information, described products’ physical features and attributes, contained celebrities, sought action-based participation, and applied hyperlinks. The initial data suggest that a major use of social media in luxury brand advertising is to build the brand’s social presence by extensively using visuals. Images were found in 44 messages, and 25 of them used 6 or more images. Most of these images showed products or brands. Video also appeared in 14 messages. The initial results also suggest consumer interaction and engagement is restricted to the lowest level. The two major ways of interaction were hyperlinks and action-based participation. A close examination showed that these two were often used together. A hyperlink used anchor text that contained a call for action-based participation, like “read more,” “get the coupon,” etc. A lot of these actions related to consuming content, like reading, downloading or sharing, which is the lowest level of brand related-activeness on branded social media sites (Muntinga, Moorman, and Smit 2011).Additionally, product/brand information and physical features and attributes were frequently mentioned, suggesting that luxury brands use social media for information dissemination. WeChat has a large size of active users, and self-disclosure of information on social media can create a sense of close relationship (Kaplan and Haelein, 2010). High product quality, especially in terms of design and craftsmanship were frequently addressed, suggesting that that social media are used to communicate the nuances of brand’s social meanings. For example, some messages described the conceptualization of the design, the processing of handcrafting, and the meaning of the design, etc. These deeper meaning of a brand is often left out of traditional methods of advertising because of limited space or time. Celebrity was one of the major methods to create social meaning, suggesting that luxury brands use social media to leverage parasocial interaction between celebrities and consumers. Parasocial interaction refers to consumers’ perception of personal relationship with media personalities (Men and Tsai 2013). Among the sample messages, there were interviews with famous designers, advices and recommendations from celebrities about luxury brand and fashion, etc. These messages offer an opportunity for consumers to connect with celebrities, and subsequently, associate luxury brands with these iconic figures (McCraken, 1989). All in all, Western luxury brands largely use social media to build social presence, disseminate information, and communicate brand’s social meanings. Luxury brands frequently interact with audiences on social media but the level of consumer engagement is restricted. Study 2 The participants’ interpretations of WeChat provide a unique context and form a crucial referential framework for them to interpret luxury brands’ marketing communications on this particular social media platform. Specifically, the themes that emerged regarding those Chinese female affluent consumers’ perceptions of the social medium are an intimate friend vs. an everyday assistant, simple vs. complicated, and stickiness vs. interactivity; and, the themes regarding the participants’ interpretation of luxury brands’ marketing communications include inactive, conservative, and distance. Based on their own experiences of social media marketing and from consumers’ perspectives, the participants also provided insightful suggestions for luxury brands to improve their social media marketing to better connect with their consumers. Interpretation of WeChat An Intimate Friend vs. An Everyday Assistant According to the participants, their usage and composition of friends on WeChat has kept changing and evolving. At the initial stage of their usage, all the friends on WeChat were family members and close friends. At that time, WeChat constructed a small, closed, and intimate social circle for them to communicate, socialize, and entertain themselves and their WeChat friends in a carefree and relaxing way. In this sense, WeChat is like a good friend, who can accompany them and chat with them whenever they need him/her. Later, with the number of WeChat friends increasing and expanding, the composition of theirWeChat friends has also become complicated: different social relationships have been added to their WeChat friend list. Accordingly, based on the closeness and remoteness, they categorize their WeChat friends and communicate and socialize with them in a more cautious and delicate way. In this sense, WeChat has also changed to an office assistant who helps them to manage and maintain their social relationships. Simple vs. Complicated With the change of WeChat and the revolution of participants’ usage and experiences, in the life-worlds of the participants, WeChat has transformed from a simple chatting app to a multi-functional personal service hub. At the initial usage of stage, according to the participants, the major function of WeChat is a chatting app to communicate with their friends conveniently. Later, with more functions to be added to WeChat, WeChat has evolved to a complicated personal service hub to serve various personal and commercial purposes for the participants. Stickiness vs. Interactivity According to the participants, WeChat is a unique social media platform with high stickiness but low interactivity. The participants indicated that they use WeChat all the time, and they have to check their WeChat numerous times during a day. In other words, WeChat is considered as a high frequency social media app. In the meantime, the participants felt that WeChat is lacking interactivity when comparing to other social media platforms such as microblogging. They stated that the possible interactive activities on WeChat are very limited. In other words, in the life-world of the participants, WeChat is perceived as a less reciprocative social media platform. Interpretation of Luxury Brands’ Marketing Communication on WeChat Inactive According to the participants, the luxury brands’ WeChat public accounts are less active than other brands’ public accounts. Those luxury brands’ WeChat public accounts post information less frequently and seldom interact with followers. This is actually put those luxury brands in a relatively negative marketing position on WeChat. The participants indicated that they follow many public accounts. Because the luxury brands’ public accounts are not very active, without constant reminder, the followers may gradually forget about those luxury brands’ public accounts and stop checking their accounts’ updates. Conservative In addition to be seen as inactive, the luxury brands’ WeChat public accounts are also perceived to be conservative. According to the participants, compared to other brands, luxury brands’ WeChat public accounts are too serious, less interesting, and lacking entertainment. The participants felt that the luxury brands are very cautious and careful regarding their WeChat presence. Therefore, their WeChat posts are generally too conservative and formal, lacking creativity and uniqueness. As a result, the participants couldn’t remember any impressive and unforgettable post from those luxury brands’ WeChat public accounts.Distance In the participants’ eyes, the luxury brands are perceived to intentionally keep a certain distance from WeChat users. The participants felt that on the one hand the luxury brands are trying hard to connect with their consumers on social media, on the other hand, they are also trying to preserve their luxury brand image on this media platform by alienating general WeChat users. However, the participants felt it is not easy for luxury brands to achieve those two purposes successfully on WeChat. Suggestion of Luxury Brands’ Marketing Communication on WeChat Based on their perceptions and experiences of luxury brands’ social media marketing, the participants offered several insightful suggestions for luxury brands to improve their social marketing endeavors to better connect with their consumers. According to the participants, the most important marketing communication strategy via social media that luxury brands could adopt is to collaborate with opinion leaders (Katz and Lazarsfeld 1957) on social media to humanize, personalize, and entertainize their marketing communications. As the participants indicated, there are many successful and popular personal fashion public accounts on WeChat which have millions of loyal followers. Those personal fashion public accounts usually have unique styles and characteristics that are attractive to and well-liked by their followers. Compared to luxury brands’ official public accounts, those personal public accounts are perceived more humanized, personal, and closer to consumers. In addition, those accounts also have more flexibility to be creative and entertaining thus providing a better social media experience for luxury brands’ consumers. For luxury brands’ own public accounts on social media, the participants suggested that those luxury brands should become more active on social media by posting messages more frequently and constantly reminding consumers of their social presence. In addition, the participants think those luxury brands should be more adventurous on social media by being more creative and expressing more entertaining spirit.

Dynamic response analysis for structures with interval parameters

Chen, Su Huan,Lian, Hua Dong,Yang, Xiao Wei Techno-Press 2002 Structural Engineering and Mechanics, An Int'l Jou Vol.13 No.3

In this paper, a new method to solve the dynamic response problem for structures with interval parameters is presented. It is difficult to obtain all possible solutions with sharp bounds even an optimum scheme is adopted when there are many interval structural parameters. With the interval algorithm, the expressions of the interval stiffness matrix, damping matrix and mass matrices are developed. Based on the matrix perturbation theory and interval extension of function, the upper and lower bounds of dynamic response are obtained, while the sharp bounds are guaranteed by the interval operations. A numerical example, dynamic response analysis of a box cantilever beam, is given to illustrate the validity of the present method.

Design procedure for modal controllers for defective and nearly defective systems

Chen, Yu Dong,Chen, Su Huan,Yang, Guang Techno-Press 2003 Structural Engineering and Mechanics, An Int'l Jou Vol.15 No.5

This paper presents a procedure for designing feedback controllers for defective systems with repeated eigenvalues, and also for a nearly defective system with close eigenvalues. For the nearly defective system, we first transform it into a defective one, and then apply the same method to deal with the nearly defective system. A method for computing the gain matrices is discussed here. The methodologies proposed are based on the modal coordinate equation to avoid the tedious mathematical manipulation. As an application of the present procedure, a numerical example is given.

Impact of selected fungi from an artificial diet on the growth and development of Drosophila suzukii (Diptera: Drosophilidae)

Huan-Huan Gao,Nan Xu,Hao Chen,Qian Liu,Qian-Yun Pu,Dong-Yun Qin,Yi-Fan Zhai,Yi Yu 한국응용곤충학회 2017 Journal of Asia-Pacific Entomology Vol.20 No.1

Drosophila suzukii (Diptera: Drosophilidae) is one of the very few Drosophila species which are able to lay eggs and feed on healthy ripening fruit. Adults and larvae are all able to obtain the nutrition in the decaying food, which will generate many microorganisms. However, the relationship between D. suzukii and microorganism is poorly understood. In this study, 13 species of fungi were identified in an artificial diet fed by D. suzukii. Short-term and continuously life table experiments were conducted to determine the impact of three of these fungus species including Geotrichum candidum, Talaromyces minioluteus and Actinomucor elegans on the growth and development of Drosophila suzukii. Results revealed that, compared to the control, G. candidum, T.minioluteus and A. elegans increased the mortality of D. suzukii adults in the short time, while extended the developmental time of pupal D. suzukii by 18.00%, 16.22% and 26.44%, respectively in the life table experiment. T. minioluteus reduced the total longevity of D. suzukii by 15.52%, while A. elegans enhanced the total longevity by 25.96%. G. candidum and A. elegans increased the fecundity bymore than two folds. T. minioluteus elongated the mean generation time (T) by 31.34%, whereas G. candidum shortened it by 15.26% but increased the net reproductive rate (R0) by 217.76%, intrinsic rate of increase (r) by 88.89% and finite rate of increase (λ) by 9.17%. It was concluded that G. candidumand A. elegans significantly had the beneficial effect on the growth and reproduction of D. suzukii, however, T. minioluteus had the negative effect on D. suzukii. Our results could provide a new integrated pest management strategy for D. suzukii which would be discussed in this study.

Robustness analysis of vibration control in structures with uncertain parameters using interval method

Chen, Su Huan,Song, Min,Chen, Yu Dong Techno-Press 2005 Structural Engineering and Mechanics, An Int'l Jou Vol.21 No.2

Variations in system parameters due to uncertainties may result in system performance deterioration. Uncertainties in modeling of structures are often considered to ensure that control system is robust with respect to response errors. Hence, the uncertain concept plays an important role in vibration control of the engineering structures. The paper discusses the robustness of the stability of vibration control systems with uncertain parameters. The vibration control problem of an uncertain system is approximated by a deterministic one. The uncertain parameters are described by interval variables. The uncertain state matrix is constructed directly using system physical parameters and avoided to use bounds in Euclidean norm. The feedback gain matrix is determined based on the deterministic systems, and then it is applied to the actual uncertain systems. A method to calculate the upper and lower bounds of eigenvalues of the close-loop system with uncertain parameters is presented. The lower bounds of eigenvalues can be used to estimate the robustness of the stability the controlled system with uncertain parameters. Two numerical examples are given to illustrate the applications of the present approach.

Lactoferrin Alleviates the Progression of Atherosclerosis in ApoE−/− Mice Fed with High-Fat/Cholesterol Diet Through Cholesterol Homeostasis

Chen-Jie Ling,Qing-Qing Min,Jin-Rong Yang,Zheng Zhang,Huan-Huan Yang,Jia-Ying Xu,Li-qiang Qin 한국식품영양과학회 2019 Journal of medicinal food Vol.22 No.10

Lactoferrin (LF) is a multifunctional glycoprotein and has beneficial effects on the regulation of lipid metabolism. However, whether LF supplementation alleviates the development of atherosclerosis (AS) remains unclear. In the present study, all of 48 male Apolipoprotein E−/− mice were fed with high-fat diet with 1.25% added cholesterol and divided to four treatment groups with either distilled water (HFCD), LF solutions at 2 mg/mL (low LF), 10 mg/mL (middle LF or MLF), or 20 mg/mL (high LF or HLF) for 12 weeks. Oral glucose tolerance tests (OGTT) were performed at weeks 0, 4, 8, and 12. At the end of the experiment, lipids in serum, liver, and feces were determined. The livers, whole aortas, and aortic sinuses were pathologically examined. The protein expression of factors related to cholesterol synthesis, absorption, and excretion were detected through western blot. No significant difference in body weight, food intake, and OGTT was observed among the four groups. Compared with the HFCD group, the MLF and HLF groups had significantly decreased serum and hepatic cholesterol levels and significantly increased fecal cholesterol contents. LF alleviated the hepatic steatosis and lipid droplet, especially in the MLF group. LF also significantly decreased the average lesion areas in the whole aorta, especially in the MLF group. On the other hand, LF downregulated hepatic protein expression of HMG-CoA reductase (the rate-limiting enzyme in cholesterol synthesis) and upregulated cholesterol 7-alpha hydroxylase (the rate-limiting enzyme in bile acid synthesis from cholesterol). LF also downregulated the intestinal expression of Niemann-Pick C1-like 1 protein, which is known to bind to a critical mediator of cholesterol absorption. In conclusion, LF supplementation alleviates the AS in mice on HFCD likely by reducing the synthesis and absorption of cholesterol and increasing cholesterol excretion.

Thyroid-Associated Orbitopathy: Evaluating Microstructural Changes of Extraocular Muscles and Optic Nerves Using Readout-Segmented Echo-Planar Imaging-Based Diffusion Tensor Imaging

Huan-Huan Chen,Hao Hu,Wen Chen,Dai Cui,Xiao-Quan Xu,Fei-Yun Wu,Tao Yang 대한영상의학회 2020 Korean Journal of Radiology Vol.21 No.3

Objective: We aimed to investigate the ability of readout-segmented echo-planar imaging (rs-EPI)-based diffusion tensor imaging (DTI) in assessing the microstructural change of extraocular muscles (EOMs) and optic nerves in patients with thyroidassociated orbitopathy (TAO) as well as in evaluating disease activity. Materials and Methods: We enrolled 35 TAO patients and 22 healthy controls (HCs) who underwent pre-treatment rs-EPIbased DTI. Mean, axial, and radial diffusivity (MD, AD, and RD) and fractional anisotropy (FA) of the medial and lateral EOMs and optic nerve for each orbit were calculated and compared between TAO and HC groups and between active and inactive TAO groups. Factors such as age, sex, disease duration, mediation, and smoking history between groups were also compared. Logistic regression analysis was used to evaluate the predictive value of significant variables for disease activity. Results: Disease duration was significantly shorter in active TAOs than in inactive ones (p < 0.001). TAO patients showed significantly lower FA and higher MD, AD, and RD than HCs for both medial and lateral EOMs (p < 0.001), but not the AD value of lateral EOMs (p = 0.619). Active patients had significantly higher FA, MD, and AD than inactive patients for medial EOMs (p < 0.005), whereas only FA differed significantly in the lateral EOMs (p = 0.018). The MD, AD, and RD of optic nerves were significantly lower in TAO patients than HCs (p < 0.05), except for FA (p = 0.129). Multivariate analysis showed that the MD of medial EOMs and disease duration were significant predictors for disease activity. The combination of these two parameters showed optimal diagnostic efficiency for disease activity (area under the curve, 0.855; sensitivity, 68.4%; specificity, 96.9%). Conclusion: rs-EPI-based DTI is promising in assessing microstructural changes of EOMs and optic nerves and can help to indicate the disease activity of TAO, especially through the MD of medial EOMs.

STRONGLY π-REGULAR MORITA CONTEXTS

Chen, Huan-Yin Korean Mathematical Society 2003 대한수학회보 Vol.40 No.1

In this paper, we show that if the ring of a Merits context (A, B, M, N, ${\psi},\;{\phi}$) with zero pairings is a strongly $\pi$-regular ring of bounded index if and only if so are A and B. Furthermore, we extend this result to the ring of a Merits context over quasi-duo strongly $\pi$-regular rings.