1,721,380 research outputs found
Yu Tang Chun 玉堂春
No full textIn the artist\u27s own claims on her work: In 1994, I made a sound installation \u27Yu Tang Chun\u27. It consisted of more than one hundred drying racks. On each of the racks, clothes were not placed but instead was rice paper. There were more than 600 speakers hidden between the rice paper. The output sounds from the speakers were a digitally processed excerpt from The Peking Opera \u27Yu Tang Chun\u27. The installation, according to Qin, forms a poetic connection between the East and the West, by an acute juxtaposition of their cultural emblems respectively -- rice paper vs. speaker, soundtracks from Yu Tang Chun vs. the soundtracks\u27 electronic reproductions. (秦玉芬 建造一座“珊瑚岛”, 2019, 99 Artnet 99艺术网, available on https://collection.sina.cn/yejie/2019-04-15/detail-ihvhiqax2717879.d.html?vt=4. The quotes cited were translated from Chinese) (Jerry Wu\u2723).https://digital.kenyon.edu/zhou/1207/thumbnail.jp
A central clearing system for capital market instruments in Hong Kong.
Full text linkby Li Kwing-hong, Alvin, Tang Chun-sing, Roger.Thesis (M.B.A.)--Chinese University of Hong Kong, 1988.Bibliography: leaf 71
Some Existence Results for Periodic Solutions of Non autonomous Second Order Systems
No full textTang Chun-Lei. Some Existence Results for Periodic Solutions of Non autonomous Second Order Systems. In: Bulletin de la Classe des sciences, tome 8, n°1-6, 1997. pp. 13-19
Rational formulation of Octopirox® for targeted delivery to the skin
No full textScalp conditions like dandruff affect many people globally, impacting their well-being. While antifungal agents such as Octopirox® (OPX) are common, their effectiveness can be limited by an
incomplete understanding of their properties and skin delivery. This thesis introduces a rational,
data-based approach to optimise OPX's topical delivery, addressing critical knowledge gaps to
improve its performance in treating common topical scalp issues.
The academic contributions are significant, advancing understanding of OPX and its skin
penetration behaviour. This work offers the first comprehensive physicochemical characterisation
of OPX, detailing key properties vital for skin delivery, alongside a validated analytical
quantification method. Such fundamental data, previously unknown, is crucial for future OPX
formulation development. The research identifies and validates the superior performance of
specific multi-component solvent systems. In vitro studies showed that these complex systems
significantly enhance OPX skin retention and permeation compared to simpler vehicles and a
commercially available product. These findings were confirmed by the first in vivo human studies
of OPX penetration using advanced spectroscopic and traditional skin sampling techniques,
demonstrating enhanced delivery from optimised systems. Methodologically, this thesis confirms
Confocal Raman Spectroscopy (CRS) as a powerful, non-invasive tool for investigating OPX uptake
in human subjects, correlating strongly with traditional methods. This provides a robust
assessment tool and supports wider adoption of non-invasive in vivo techniques, promoting more
ethical research practices. These insights facilitate future research on penetration mechanisms and
the application of these design principles to other topical actives.
For individuals with dandruff, enhanced OPX delivery from rationally designed formulations
promises more effective symptom management, better scalp health, and improved quality of life.
The demonstration of more efficient OPX delivery into the skin creates a pathway to more
efficacious treatments. For personal care and pharmaceutical industries, this research provides a
scientific basis for next-generation, high-efficacy anti-dandruff products. The finding that rationally
designed formulations can outperform existing commercial products highlights the potential for
significant product improvement and competitive advantage, while streamlining R&D. Formulation scientists and personal care companies will benefit from this new knowledge, enabling more
effective OPX products and better commercial options.
The widespread impact will be realised through ongoing dissemination via peer-reviewed
publications. The non-invasive analytical methods and rational formulation design principles will
inform future product development and educate future scientists, fostering an innovative,
evidence-based culture in topical product design
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
The Study of Rate of Return Guarantees under Defined Contribution Pension Plans
No full text本論文包含兩篇文章，皆是以附收益率保證確定提撥制退休金計畫為研究主軸。第一篇文章推導附收益率保證之評價公式，此收益率保證乃是連結至Delta-年期定存利率，並且兼具互換選擇權、路徑相依選擇權、遠期生效選擇權之性質。本文同時考慮兩種保證型態：到期日保證與多期保證，運用平賭訂價理論以及Margrabe (1978)的方法，在一因子HJM利率模型下推導這兩種保證的價格公式解，並且分析重要參數對價格的影響。第二篇文章延續第一篇的保證型態，分析投資策略與行為是否會影響保證成本與退休金收益。本文假設利率動態遵循CIR模型，並設定買進持有策略與多種更換投資組合策略，以模擬方式得到保證成本與退休金收益的數值結果。在本文的保證型態與參數設定下，計畫參與者可以買進具有高報酬率與高波動率的投資組合並持有至退休日，以獲得高預期退休金收益；此外，在考慮更換投資組合的行為後，保證成本可能會上升，這反應出：附收益率保證退休金計畫發行者在評估保證成本時，必須將參與者可能的投資行為納入考慮，以免低估成本。This doctoral dissertation contains two essays to study the minimum rate of return guarantees embedded in defined contribution pension plans. The first essay derives the explicit formulae to value these guarantees. Different from previous studies, we analyze the guarantees linked to the delta-year spot rates. Two types of guarantees are considered: maturity guarantee and multi-period guarantee. These guarantees have mixed features of exchange options, path-dependent options and forward start options. We adopt the one-factor HJM model to describe the evolution of interest rates. The closed-form formulae are derived by the martingale pricing theory and Margrabe’s (1978) approach. We also present numerical results and analyze how the values change with the parameter estimates.
The second essay investigates how investment strategies and behaviors affect guarantee costs and retirement benefits in defined contribution plans that provide interest rate guarantees. Several investment strategies are considered, including both a buy-and-hold strategy without portfolio modifications and those that allow frequent modifications of the portfolio during the accumulation phase. According to the numerical results offered by simulation techniques, a participant chasing the highest expected retirement benefits should adopt the buy-and-hold strategy and distribute all contributions in the portfolio with high expected rate of return and high volatility in our guarantee designs. After incorporating frequent modification behaviors, averages and risk measures of guarantee costs may be higher than when the participant always holds the portfolio with high expected rate of return and volatility. Therefore, when the pension plan provides rate of return guarantees, the plan provider cannot ignore the impact of the participant’s frequent modification behaviors.口試委員會審定書 i
謝 辭 ii
中文摘要 iii
Abstract iv
The First Essay: Valuation of Interest Rate Guarantees Embedded
in Defined Contribution Pension Plans 1
1. Introduction 2
2. Structures of Guarantees and Financial Model Settings 6
3. Valuation of Interest Rate Guarantees 11
3.1 Type-I Guarantee (Maturity Guarantee) 11
3.2 Type-II Guarantee (Multi-Period Guarantee) 19
4. Numerical Results and Sensitivity Analysis 23
5. Extension Research under the Setting of Exponentially Decaying Volatility 30
6. Conclusions 39
References 41
Appendix 44
The Second Essay: Impacts of Investment Strategies and
Participants’ Behaviors on Guarantee Costs and Retirement
Benefits in Defined Contribution Pension Plans 51
1. Introduction 52
2. Structures of Guarantees, Financial Models, and Strategies 58
2.1 Structures of Guarantees 58
2.2 Interest Rate and Portfolio Price Dynamics 59
2.3 Investment Strategies and Participants’ Behaviors 61
2.4 Actual Rate of Return and Income Replacement Ratio 65
3. Numerical Results 66
3.1 Results for S1 (Buy-and-Hold Strategy) 67
3.2 Results for Strategies S2-S7 (with Modification) 81
4. Conclusions 92
References 94
Appendix 10
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
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