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過去50年,香港媒體有關藥物成癮的主要概念主要來自對海洛因(俗稱「白粉」)吸毒者的想像。「吸毒者」通常被視為「對工作和家庭不負責任」,並且被描繪成「以犯罪獲得金錢購買毒品來紓緩嚴重的斷癮症狀。」然而,近年來,大部份青少年吸毒者吸食軟性毒品如氯胺酮和搖頭丸,而非海洛因。對青少年吸毒者而言,在道德和醫學概念上的「吸毒」定義並不符合他們的毒品經驗,原因是他們在使用藥物後並無嚴重的斷癮症狀。這種傳統毒品觀念與青少年吸毒者經驗之間的「矛盾」對戒毒和預防教育產生很大障礙。 ; 本研究旨在找出現有主流媒體、戒毒機構及青少年吸毒者對「吸毒」的詮釋。本研究首先對禁毒政策進行歷史分析,以找出禁毒政策和現有的道德和醫學毒品論述之間的關係。另外,本研究對1978年至2008年的100個禁毒廣告及由1979年至2009年的26部禁毒電視新聞紀錄片進行文本及論述分析,以整合過去30年來本地媒體所運用的毒品論述。再者,本研究在一所福音戒毒中心(基督教得生團契)及一間社區戒毒輔導中心(香港路德會青欣中心)分別進行14個月及10個月民族誌考察,以檢視社工及青少年吸毒者如何運用主流媒體流行的毒品論述。 ; 本研究發現主流媒體經常使用一種包含道德及醫學論述的「過來人」敘事法(go through narrative)。這種敘事法主要以吸毒「過來人」作為關鍵主體,去描述吸毒者最「真實」的「浪子回頭」故事,並且組成了主流的「浪子回頭」論述(Prodigal Son Returns Home Discourse),為吸毒者建立了一個「浪子」身份。另外,本研究亦發現媒體中常見的「過來人」敘事法亦常被社工及戒毒過來人應用,並將吸毒定性為生活方式問題。青少年吸毒者對主流論述的「浪子」身份表現出不同程度的適應,但這種敘述自我身份的靈活性仍被局限於「過來人」敘事法及其容許的論述原素(discursive components)當中。 ; 在理論層面上,本研究歸納出形成社會異類身份的主流論述所涉及的社會、組織、及互動層面的因素。而且,本研究亦歸納出在主流論述控制下,社會異類者體現自我身份自主性的策略,包括:「漠不關心」(Indifference)、「完整接受」(Adoption)、「自我適應」(Adaptation)及「自我肯定」(Affirmation)。透過靈活表述社會異類行為的性質,他們肯定個人身份及對抗主流論述。然而這種敘述自我身份的靈活性仍被局限於主流論述原素當中。 ; For over 50 years, the major conception of drug addiction in Hong Kong media comes from the imaginations of heroin addiction. Drug addicts are usually presented as irresponsible for job and family, and they commit crimes to get money to buy drugs in order to relieve serious withdrawal symptoms. However, in recent years, most youth addicts use 'recreational drugs' like ketamine and ecstasy rather than heroin. The moral and disease conceptions of drug addiction are not applicable in their drug-taking experiences because many youth psychotropic drug addicts find no severe withdrawal and tolerance symptom. The 'gap' between the conventional drug discourses and the experience of youth drug users produces dissonance among addicts, drug rehabilitation and preventive education. ; This study aims at figure out the existing meanings of drug addiction in the mass media and drug rehabilitation. Firstly, a historical analysis on the government anti-drug policy was conducted to figure out the relationship between ...

Wong, Ngan Yuk. ; Thesis (M.Phil.)--Chinese University of Hong Kong, 2010. ; Includes bibliographical references (leaves 114-128). ; Abstracts in English and Chinese. ; Thesis/Assessment Committee --- p.i ; Declaration --- p.ii ; Abstract (in English) --- p.iii ; Abstract (in Chinese) --- p.v ; Acknowledgments --- p.vi ; Table of Contents --- p.vii ; List of Abbreviations --- p.xi ; List of Figures --- p.xiv ; List of Tables --- p.xvi ; Chapter 1. --- Literature review --- p.1 ; Chapter 1.1. --- Introduction to Cordyceps --- p.1 ; Chapter 1.2. --- Ingredients of Cordyceps and their related biological activities --- p.4 ; Chapter 1.2.1. --- "Amino acids, peptides, proteins and polyamines" --- p.4 ; Chapter 1.2.1.1. --- Proteins --- p.4 ; Chapter 1.2.2. --- Saccharides and sugar derivatives --- p.7 ; Chapter 1.2.2.1. --- Polysaccharides --- p.7 ; Chapter 1.2.3. --- Nucleosides --- p.9 ; Chapter 1.2.3.1. --- Cordycepin --- p.9 ; Chapter 1.2.3.2. --- Adenosine --- p.12 ; Chapter 1.2.4. --- Fatty acids and sterols --- p.14 ; Chapter 1.2.5. --- Vitamins and inorganics --- p.15 ; Chapter 1.3. --- Cordyceps and their related biological activities --- p.15 ; Chapter 1.3.1. --- Cordyceps militaris --- p.15 ; Chapter 1.3.2. --- Cordyceps sinensis --- p.17 ; Chapter 1.4. --- Proteomic tools used to study the change in protein expression profiles --- p.21 ; Chapter 1.4.1. --- Proteomic tools in studies of the change in protein expression --- p.21 ; Chapter 1.4.2. --- Two-dimensional gel electrophoresis --- p.22 ; Chapter 1.4.3. --- Mass spectrometry --- p.22 ; Chapter 1.4.4. --- Current challenges --- p.23 ; Chapter 2. --- Methodology --- p.25 ; Chapter 2.1. --- Cultivation of Cordyceps militaris --- p.25 ; Chapter 2.2. --- Preparation of Cordyceps extracts for anti-proliferation assay on cell lines --- p.26 ; Chapter 2.2.1. --- Types of the extracts of Cordyceps --- p.26 ; Chapter 2.2.2. --- Preparation of the Cordyceps extracts --- p.26 ; Chapter 2.3. --- Anti-proliferation assay on cell lines for extract screening --- ...