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中學生也可做太空人?

2011-05-14 10:09 by Mr. KO
瀏覽:7,361

主題:成為中國太空人

目標:

  1. 讓香港學生深入學習和體驗中國太空人的訓練過程;
  2. 讓學生認識中國在航天科技上取得的偉大成就;
  3. 激勵學生學習天文和航天科技。

內容:

  1. 親身體驗真正太空人訓練;
  2. 會見知名中國太空人;
  3. 參觀主要航天機構,例如北京航天城、西昌衛星發射中心及其它重要航天設施;
  4. 學習基本的太空科學和航天科技知識。

參加者須知:

  1. 學生必須為年滿12歲的香港全日制中學學生;
  2. 身高1.4至1.75米,健康良好,無癲癎症、高血壓、哮喘及傳染病;
  3. 學員性格須獨立、外向、自信,並對航天科技有濃厚興趣;
  4. 由於體驗營活動均以普通話進行,能以流利普通話溝通的參加者將獲優先考慮。

名額:30人 (以問答比賽、營前集訓和面試甄選)    

費用:全免(包括參加甄選活動及內地體驗營的交通及食宿費用)

參加辦法:

  1. 學生可到太空館網頁下載提名表格;
  2. 將填妥的提名表格交回就讀學校;
  3. 由學校提名最多2位學生參加;
  4. 有關提名安排請向就讀學校查詢。

(下載提名表格)

學校提名日期:2011年5月1日至31日(以郵戳為準

此外,我們將去年到北京航天城及西昌衛星發射中心參加「少年太空人體驗營」時所拍攝的照片,以及學生們在體驗營的難忘經歷和心底話記錄下來,輯錄成一本紀念特刊,讓更多人有機會認識到這項極具意義的活動。

下載少年太空人體驗營2010紀念特刊

(以上資料轉載自香港太空館)

參考網站:

少年太空人體驗營




  

標籤: 科學活動, 少年太空人體驗營, 太空人 檢舉

Biology past and biology future: where have we been and where are we going?

2011-05-06 13:03 by Mr. KO
瀏覽:7,523

HKU Public lecture : Biology past and biology future: where have we been and where are we going?

Date: May 16, 2011
Time: 11 am (Refreshments from 10.30 am)
Venue: Theatre T3, Meng Wah Complex Building, HKU
Medium: English
Admission: Free
Speaker: Professor Bruce Alberts, Editor-in-chief of Science, President of National Academy of Sciences (1993-2005)

Public lecture : Biology past and biology future: where have we been and where are we going?

 

Abstract

Our view of the chemistry of life has changed dramatically over the course of the past 40 years.  At any moment of time, we have always vastly underestimated the sophistication of cellular mechanisms, and it is certain that we still have an enormous number of surprises ahead of us. This is therefore an exciting and challenging time to be a biological scientist, and there are enormous opportunities for discovery.

Professor Alberts’s role in writing or revising a cell biology textbook every five years since 1980 provides a useful perspective. From the work of his team on the 5th edition of The Molecular Biology of the Cell, he will discuss some of the challenges created by three quite recent surprises:

  1. The recognition of the enormous numbers of functional DNA sequences in the human genome that do not encode proteins.
  2. The recognition that positive and negative feedback loops underlie nearly all of cell chemistry.
  3. The recognition that extensive scaffold networks produce biochemical sub-compartments in the cell, without requiring a membrane.

Source:

HKU Publice Lecture

標籤: Bruce Alberts, Public Lecture, HKU 檢舉

Virus Killers and Killer T Cells

2011-04-28 10:05 by Mr. KO
瀏覽:7,006

HKU Centenary Distinguished Lecture
Laureate: Professor Peter Doherty
Lecture: Virus Killers and Killer T Cells

Date:      May 24, 2011 (Tuesday)
Time:     5:00 – 7:00pm
Venue:     Rayson Huang Theatre, The University of Hong Kong 

Speaker


Professor Peter Charles Doherty
Recipient of the Nobel Prize in Physiology or Medicine in 1996

Professor Peter Charles Doherty shared the Nobel Prize in Physiology or Medicine in 1996 with Swiss colleague Rolf Zinkernagel, for their discovery of how the immune system recognises virus-infected cells. He was Australian of the Year in 1997, and has since been commuting between St Jude Children’s Research Hospital in Memphis and the Department of Microbiology and Immunology at the University of Melbourne. His research is mainly in the area of defence against viruses. He regularly devotes time to delivering public lectures, writing articles for newspapers and magazines and participating in radio discussions.

Professor Doherty graduated in Veterinary Science from the University of Queensland and became a veterinary officer. Moving to Scotland, he received his PhD from the University of Edinburgh Medical School. He is the first person with a veterinary qualification to win a Nobel Prize.

Professor Doherty is also the author of several books, including "A Light History of Hot Air" and "The Beginners Guide to Winning the Nobel Prize".

Abstract - Virus Killers and Killer T Cells

Mammals like us are large, complex, slow-reproducing life forms that are subject to parasitism by simpler, rapidly dividing (and mutating) organisms. Through evolutionary time, this need to counter infection has led to the evolution of innate immune mechanisms that are common to many species, and to the extraordinarily specific, adaptive immune system that is characteristic of higher vertebrates.

Replicating only in living cells, the viruses are obligate intracellular parasites that throw up two types of challenges for immune control. In free form, the viruses must in some way transit via the air, through protective mucus layers (or in the blood) to access, then enter, the body cells that will support their growth. At that stage, they are vulnerable to attack by secreted antibodies that bind, in the main, to conformed (tertiary) structures on surface glycoproteins. Antibody immunity is the basis of all successful vaccines to date. Then, if a virus has succeeded in bypassing antibody control, there’s the need to eliminate the infected cells that serve as "factories" to produce new virus particles and propagate the disease process. That’s the role of the CD8+ or "killer" T cells (T Cells), that are targeted to modified (by virus peptide) transplantation or major histocompatibility complex (MHC) molecules on the surface of infected cells.

With potentially lethal pathogens, it is this interplay between the kinetics of virus spread on the one hand, and immunity on the other, that determines the fate of the infected individual.

Registration

Reference:

Centenary Distinguished Lecture
http://www.med.hku.hk/centenary_lecture2011/index.html

標籤: HKU, 科學講座 檢舉

愛因斯坦在香港?

2011-04-04 08:00 by Mr. KO
瀏覽:8,180

唔係「愛因斯坦在香港」應該係「愛因斯坦在香江」!

其實這是香港科學館為慶祝成立二十周年而舉行的主要項目,也是本年4月至8月間舉行的「愛因斯坦在香江」活動的重點項目之一。 

今次展覽將展出200多件物品及各類資料,生動而全面地反映愛因斯坦的生活和回顧他所處的時代背景。展品包括與愛因斯坦相關的原有館藏、他的文件和照片的複製品、具歷史價值的物件和影片、解釋有關理論的動畫和錄像,以及多件展示物理現象的互動展品。此外,展覽廳更設有宇宙劇場,展現遼闊無邊的宇宙,並帶領觀眾穿越時空,觀看宇宙誕生時的情況。希望觀眾了解愛因斯坦在物理學上的革命性見解之餘,亦可見證他光輝的生命歷程和認定他在世界歷史中的角色。

原來,愛因斯坦曾兩度踏足香港,首次是一九二二年十一月九日,愛因斯坦伉儷乘坐日本郵輪抵港,遊覽山頂及淺水灣酒店後前往日本,更指香港的景色令他想起瑞士。當時報章引述指,愛因斯坦認為當時香港大學應有美好將來,遺憾未能在那裏講課。其後,愛因斯坦由香港前往上海的航程中接到電報,得悉他獲得諾貝爾物理學獎。

至於愛因斯坦第二次到港,則在一九二三年一月五日從日本返回歐洲途中,他更到當時的猶太人康樂會接受祝賀。陳繁昌指,「愛因斯坦對科學有重大貢獻,若沒有他,很難想像現在的生活會變成怎樣,希望香港學生能從中得到啟發,多為社會做研究。」

另外,我十分欣賞香港科學館在是次專題展覽網站中加入「愛因斯坦語錄」,這是很值得同學們去看看,以下幾句我特別喜愛:

  • 如果A代表人生中的成功,那麼A=x+y+z。x代表勤奮工作,y代表玩樂,而z表示少說空話。
  • 每個困境當中都有機會。   
  • 科學的內容不過就是日常思考的提煉。
  • 教育就是當一個人把在學校所學全部忘光之後剩下的東西。

「愛因斯坦在香江」由香港科技大學、教育局、瑞士駐香港總領事館、瑞士聯邦政府科技文化中心及香港科學館聯合主辦,於2011年4月至8月間舉行。活動的目的是介紹愛因斯坦對科學及民生的貢獻,希望讓市民理解和欣賞他的理論和思想。除了舉行愛因斯坦專題展覽外,科學館於活動期內將舉辦一系列公開講座,講者包括諾貝爾獎得主瑞士科學家恩斯特教授以及瑞士和本港大學的傑出學者。其他活動項目包括由香港科技大學主辦的宇宙學學術會議及音樂研討會與音樂會,以及教育局舉辦的徵文比賽等。

(以上資料及圖片轉載自星島日報、香港科學館及「愛因斯坦在香江」網站)

參考資料:

星島日報 - 「逾200愛因斯坦展品訪港」

香港科學館專題展覽 -「愛因斯坦」

「愛因斯坦在香江」

標籤: 科學展覽, 愛因斯坦在香江, 香港科學館, 愛因斯坦 檢舉

HKU Public lecture: Biology past and biology future: where have we been and where are we going?

2011-04-03 14:54 by Mr. KO
瀏覽:7,157

Public lecture : Biology past and biology future: where have we been and where are we going?

Date: May 16, 2011
Time: 11 am (Refreshments from 10.30 am)
Venue: Theatre T3, Meng Wah Complex Building, HKU
Medium: English
Admission: Free
Speaker: Professor Bruce Alberts, Editor-in-chief of Science, President of National Academy of Sciences (1993-2005)

 

Abstract

Our view of the chemistry of life has changed dramatically over the course of the past 40 years.  At any moment of time, we have always vastly underestimated the sophistication of cellular mechanisms, and it is certain that we still have an enormous number of surprises ahead of us. This is therefore an exciting and challenging time to be a biological scientist, and there are enormous opportunities for discovery.

 Professor Alberts’s role in writing or revising a cell biology textbook every five years since 1980 provides a useful perspective. From the work of his team on the 5th edition of The Molecular Biology of the Cell, he will discuss some of the challenges created by three quite recent surprises:

  1. The recognition of the enormous numbers of functional DNA sequences in the human genome that do not encode proteins.
  2. The recognition that positive and negative feedback loops underlie nearly all of cell chemistry.
  3. The recognition that extensive scaffold networks produce biochemical sub-compartments in the cell, without requiring a membrane.

    Location Map

    Details:

    The Faculty of Sciecne, HKU

    標籤: 生物科, 香港大學理學院, 科學講座 檢舉