[爆卦]mechanism化學是什麼?優點缺點精華區懶人包

雖然這篇mechanism化學鄉民發文沒有被收入到精華區:在mechanism化學這個話題中,我們另外找到其它相關的精選爆讚文章

在 mechanism化學產品中有13篇Facebook貼文,粉絲數超過16萬的網紅中央研究院 Academia Sinica,也在其Facebook貼文中提到, 🔔#你的肝包太多油了嗎❗❗ 🎯#脂肪肝 是國人常見的肝臟疾病,早期沒有明顯症狀,長期下來卻可能演變為肝炎、肝硬化或肝癌,迄今仍缺乏有效治療藥物💊。本院生物化學研究所 #陳瑞華 特聘研究員團隊發現一種操控細胞自噬(autophagy)的新機制,✅經動物實驗證明能 #抑制脂肪肝形成。 #什麼是細胞自...

mechanism化學 在 Beacon College (Official) Instagram 的精選貼文

2020-08-10 10:26:51

昨日的黎巴嫩爆炸時事實在非常可怕。今日 @dr.kelvin.lau 會同大家講下Ammonium nitrate(硝酸銨)呢種化合物。 植物需要靠氮元素製造蛋白、DNA和葉綠素。硝酸銨含有35 %質量比的氮,係一種常用的氮肥。全球平均每年生產約2千多萬噸的硝酸銨。 硝酸銨可以受熱分解,產生一氧化二...

mechanism化學 在 Dr. Kelvin Lau Instagram 的最佳解答

2020-08-11 12:19:43

昨日的黎巴嫩爆炸時事實在非常可怕。今日我會同大家講下Ammonium nitrate(硝酸銨)呢種化合物。 植物需要靠氮元素製造蛋白、DNA和葉綠素。硝酸銨含有35 %質量比的氮,係一種常用的氮肥。全球平均每年生產約2千多萬噸的硝酸銨。 硝酸銨可以受熱分解,產生一氧化二氮(dinitrogen mo...

  • mechanism化學 在 中央研究院 Academia Sinica Facebook 的最佳解答

    2021-03-30 21:05:43
    有 904 人按讚

    🔔#你的肝包太多油了嗎❗❗

    🎯#脂肪肝 是國人常見的肝臟疾病,早期沒有明顯症狀,長期下來卻可能演變為肝炎、肝硬化或肝癌,迄今仍缺乏有效治療藥物💊。本院生物化學研究所 #陳瑞華 特聘研究員團隊發現一種操控細胞自噬(autophagy)的新機制,✅經動物實驗證明能 #抑制脂肪肝形成。

    #什麼是細胞自噬

    細胞自噬是細胞的主要資源回收機制,可消除細胞內的老舊廢物,或選擇性地清除細胞內的過多脂肪。

    👨‍🔬👩‍🔬研究團隊發現一個名為UBE3C的泛素接合酶與一個名為TRABID的去泛素酶,共同調控細胞自噬因子VPS34,以達到細胞內的恆定狀態 👇

    1⃣UBE3C藉分枝型泛素化修飾VPS34蛋白質,導致VPS34降解(degradation),被分解為小片段,#抑制 細胞自噬功能。
    2⃣TRABID去除VPS34的泛素化修飾,使其不被降解,#促進 細胞自噬。

    團隊以高脂飼料餵食小鼠誘發產生脂肪肝後,發現小鼠肝細胞內 #TRABID表現量下降,#無法啟動肝臟細胞的自噬作用。當這些小鼠被注射以腺病毒載體攜帶的TRABID基因,四週後從細胞切片觀察,✅肝臟油脂含量明顯減少,✅能抑制脂肪肝形成。  

    陳瑞華表示,「🎉本研究對於脂肪肝的治療提供新契機,若能研發出提高TRABID表現或其活性的 #藥物,則可能阻斷脂肪肝的形成,進而預防肝功能異常、肝臟發炎等相關疾病。」

    🌏研究成果於本(110)年2月發表在國際期刊《自然通訊》(Nature Communications)。

    Fatty liver is a prevalent liver disease in Taiwan and worldwide and is associated with obesity, diabetes and cardiovascular diseases. Although fatty liver is normally asymptomatic, its progression can lead to hepatitis, cirrhosis, and even liver cancer. The research team of Dr. Ruey-Hwa Chen at Institute of Biological Chemistry identifies a novel autophagy regulatory mechanism and a potential of preventing fatty liver progression by manipulating this mechanism. The study has recently been published on February 26 in Nature Communications.

    📌論文全文:https://www.nature.com/articles/s41467-021-21715-1
    📌新聞稿:https://www.sinica.edu.tw/ch/news/6826
    📌Press Release: https://www.sinica.edu.tw/en/news/6826

    #生物化學研究所 #中研院研究 #細胞自噬 #Fattyliver
      
    ▾▿▾▿▾▿▾▿▾▿▾▿▾▿▾▿▾▿
    ✨想多跟我們互動?追蹤官方IG✨
    https://www.instagram.com/academiasinica_official/?hl=zh-tw
    ✨中研大小事,訂閱《中研院訊》✨
    我要訂閱👉https://newsletter.sinica.edu.tw/

  • mechanism化學 在 VOP Facebook 的最佳解答

    2020-02-05 20:38:15
    有 81 人按讚

    新刊預覽~~✨👀

    Voices of Photography 攝影之聲
    Issue 27 : 歷史與書寫專題
    Histories and Writings Issue

    自創刊以來,《攝影之聲》持續關注影像書寫、歷史與文化樣態,隨著2019年我們在台北「空總台灣當代文化實驗場」策劃一系列攝影史敘事工作坊並舉辦戰後東亞攝影史論壇,邀請攝影史研究者共同參與,推進攝影史研究與影像歷史意識的討論契機。本期特別刊載主講者文稿,在日本、韓國與台灣研究者對東亞攝影歷程不同的關注面向中,作為攝影與歷史論述的反思與參照。

    其中,金子隆一重新定位1970年代攝影家自主藝廊在日本攝影發展中的位置,揭示非主流的創作脈動,何以是日本攝影史論中需要補遺的重要章節;陳佳琦探討1960年代台灣業餘攝影者參與日本攝影比賽的風潮,以及以日本攝影雜誌作為平台的競賽文化的可能影響,呈現出戰後台、日攝影界另類的民間交流場域;朴平鍾細述自日本殖民統治結束後,韓國攝影在現實主義與現代主義之間引發的論爭,疏理戰後韓國對於攝影認知的辯證與反省;戶田昌子析論1950年代的日本攝影表現,在脫離戰時的壓抑並逐漸獲得解放之後,受國際「主觀主義攝影」潮流影響所開展出日本攝影美學進程的時代軌印;張世倫從冷戰年代深埋於台灣社會的檔案線索與政治意識,檢視戰後台灣的影像操縱、治理機制,以及國族攝影史本身的建構和詮釋問題。

    攝影,在與光學、化學、政治社會學、文化研究,乃至符號學與精神分析等學科譜系的結合中,已不斷延展、流動、重構,打開了攝影本體論的探索空間。謝佩君縷析自上世紀以來的攝影書寫歷程與跨領域的視覺理論,勾勒攝影理路的發展形貌,本期將開啟系列討論的首章。顧錚分享於德國海德堡大學客座期間開設攝影史課程的自身經驗,並提出攝影史學門研究邊界的批判思索。黎健強剖析攝影術初登香港的歷史推論系列來到末篇,為濕版法在1850年代於香港興起的考據,展現不同的史料論證。

    此外,本期我們特別專訪陳傳興,刊載他於上世紀七〇年代末拍攝、四十年間未曾公開的照片及底片,一探銀鹽與光交集而生的影像喻意,以及他不停思辨的攝影本質論題。同時,我們也介紹高重黎的聲音與投影裝置新作,析解視聽機器現成物及獨特的一鏡到底、史上最長的「放影機電影」中的技術哲學。「攝影書製作現場」連載則進入「設計」單元,本期專訪日本設計師森大志郎,分享他細膩的平面設計語彙。

    儘管維持出版的路途艱辛,這些年我們仍努力在有限的資源下,持續進行資料考掘整理、訪談記錄等基礎工作,緩緩開展以台灣及亞洲地緣為核心的攝影文化與歷史論述。感謝親愛的讀者與朋友的支持,讓我們在新的一年裡,繼續探索未知的影像星河。

    ▍購買本期 BUY | http://bit.ly/vop-27

    Since its inception, Voices of Photography has always focused on the aspects of image writing, history and cultural forms. In 2019, we held a series of workshops on photography history narratives and a forum on history of post-war East Asian photography, at the Taiwan Contemporary Culture Lab in Taipei, Taiwan. We invited researchers in this field to join us, creating the opportunity to advance discussions on photography history research and awareness of imagery history. This issue features the manuscripts of our speakers at the event, which will serve as a reflection and reference for the photography and historical discourse in the eyes of our counterparts in Japan, South Korea and Taiwan.

    Among them, Kaneko Ryuchi has redefined the position of independent photography galleries in the development of Japanese photography in the 1970s, revealing the creative pulses that transcended the mainstream and why it became an important chapter in the history of Japanese photography, waiting to be filled. Chen Chia-Chi takes a look at the trend of Taiwanese amateur photographers participating in photography contests in Japan in the 1960s, and the possible influence that Japanese photography magazines had on the culture of photo competition, thereby shedding light on an alternative platform through which folk exchanges happened between the Taiwanese and Japanese photography fields. Park Pyungjong details the controversy between realism and modernism in Korean photography following the end of colonial rule by the Japanese, and evaluates the dialectics and reflections surrounding Korea’s understanding of photography after the war. Toda Masako analyzes Japanese photography in the 1950s, the era of Japanese photographic aesthetics that was influenced by the trend of “subjectivism” in the international arena as the oppression of war gradually faded in time. Through archives and political consciousness buried deep in the core of the Taiwanese society since the Cold War era, Chang Shih-Lun examines the manipulation and governance mechanism of images, and issues with the construction and interpretation of the nationality in photography history.

    When analyzed in combination with other disciplines such as optics, chemistry, political sociology, cultural studies, and even semiotics and psychoanalysis, the space for exploration of the ontology of photography is constantly stretched, moved, and reconstructed. Hsieh Pei-Chun analyzes the photographic writing process and the cross-domain visual theory since the last century while outlining the development of photography theories. This issue is the first in a series of discussions. Gu Zheng shares his own experience as a visiting professor on photography history at the University of Heidelberg, Germany, where he put forward a critical reflection on the boundaries of research in the field of photography history. Edwin K. Lai's analysis of the series of historical inferences from when photography first came to Hong Kong comes to an end, presenting historical evidence of the rise of the “wet-plate method” in Hong Kong in the 1850s.

    In addition, we have a special interview with Cheng Tsun-Shing, featuring never-before-published photographs and negatives that he had taken in the late 1970s. We explore the imagery metaphors that are born when silver salt and light meet, and the issue of the essence of photography that he constantly philosophizes. At the same time, we feature Kao Chung-Li’s new works of sound and projection installations, analyzing the ready-made audio-visual equipment and the technical philosophy behind the unique one-take "projector movie", that is also the longest ever such film in history. The "Photobook Making Case Study" series also enters the "Design" chapter. In this issue, we interview Japanese designer Mori Daishiro and he shares his experiences in the area of graphic design.

    Although the journey of publication is difficult, we have been striving to continue with the basics of data exploration, collation, and interviews with limited resources, as we slowly expand the photography culture and historical discourses of Taiwan and Asia and showcase them to the world. We would like t✨o thank all our dear readers and friends for your utmost support. Let us continue to explore the unknown universe of images in the new year.

    ---
    Voices of Photography 攝影之聲
    www.vopmagazine.com

  • mechanism化學 在 VOP Facebook 的最佳解答

    2020-02-04 22:43:54
    有 208 人按讚

    Voices of Photography 攝影之聲
    Issue 27 : 歷史與書寫專題
    Histories and Writings Issue

    自創刊以來,《攝影之聲》持續關注影像書寫、歷史與文化樣態,隨著2019年我們在台北「空總台灣當代文化實驗場」策劃一系列攝影史敘事工作坊並舉辦戰後東亞攝影史論壇,邀請攝影史研究者共同參與,推進攝影史研究與影像歷史意識的討論契機。本期特別刊載主講者文稿,在日本、韓國與台灣研究者對東亞攝影歷程不同的關注面向中,作為攝影與歷史論述的反思與參照。

    其中,金子隆一重新定位1970年代攝影家自主藝廊在日本攝影發展中的位置,揭示非主流的創作脈動,何以是日本攝影史論中需要補遺的重要章節;陳佳琦探討1960年代台灣業餘攝影者參與日本攝影比賽的風潮,以及以日本攝影雜誌作為平台的競賽文化的可能影響,呈現出戰後台、日攝影界另類的民間交流場域;朴平鍾細述自日本殖民統治結束後,韓國攝影在現實主義與現代主義之間引發的論爭,疏理戰後韓國對於攝影認知的辯證與反省;戶田昌子析論1950年代的日本攝影表現,在脫離戰時的壓抑並逐漸獲得解放之後,受國際「主觀主義攝影」潮流影響所開展出日本攝影美學進程的時代軌印;張世倫從冷戰年代深埋於台灣社會的檔案線索與政治意識,檢視戰後台灣的影像操縱、治理機制,以及國族攝影史本身的建構和詮釋問題。

    攝影,在與光學、化學、政治社會學、文化研究,乃至符號學與精神分析等學科譜系的結合中,已不斷延展、流動、重構,打開了攝影本體論的探索空間。謝佩君縷析自上世紀以來的攝影書寫歷程與跨領域的視覺理論,勾勒攝影理路的發展形貌,本期將開啟系列討論的首章。顧錚分享於德國海德堡大學客座期間開設攝影史課程的自身經驗,並提出攝影史學門研究邊界的批判思索。黎健強剖析攝影術初登香港的歷史推論系列來到末篇,為濕版法在1850年代於香港興起的考據,展現不同的史料論證。

    此外,本期我們特別專訪陳傳興,刊載他於上世紀七〇年代末拍攝、四十年間未曾公開的照片及底片,一探銀鹽與光交集而生的影像喻意,以及他不停思辨的攝影本質論題。同時,我們也介紹高重黎的聲音與投影裝置新作,析解視聽機器現成物及獨特的一鏡到底、史上最長的「放影機電影」中的技術哲學。「攝影書製作現場」連載則進入「設計」單元,本期專訪日本設計師森大志郎,分享他細膩的平面設計語彙。

    儘管維持出版的路途艱辛,這些年我們仍努力在有限的資源下,持續進行資料考掘整理、訪談記錄等基礎工作,緩緩開展以台灣及亞洲地緣為核心的攝影文化與歷史論述。感謝親愛的讀者與朋友的支持,讓我們在新的一年裡,繼續探索未知的影像星河。

    ▍購買本期 BUY | http://bit.ly/vop-27

    Since its inception, Voices of Photography has always focused on the aspects of image writing, history and cultural forms. In 2019, we held a series of workshops on photography history narratives and a forum on history of post-war East Asian photography, at the Taiwan Contemporary Culture Lab in Taipei, Taiwan. We invited researchers in this field to join us, creating the opportunity to advance discussions on photography history research and awareness of imagery history. This issue features the manuscripts of our speakers at the event, which will serve as a reflection and reference for the photography and historical discourse in the eyes of our counterparts in Japan, South Korea and Taiwan.

    Among them, Kaneko Ryuchi has redefined the position of independent photography galleries in the development of Japanese photography in the 1970s, revealing the creative pulses that transcended the mainstream and why it became an important chapter in the history of Japanese photography, waiting to be filled. Chen Chia-Chi takes a look at the trend of Taiwanese amateur photographers participating in photography contests in Japan in the 1960s, and the possible influence that Japanese photography magazines had on the culture of photo competition, thereby shedding light on an alternative platform through which folk exchanges happened between the Taiwanese and Japanese photography fields. Park Pyungjong details the controversy between realism and modernism in Korean photography following the end of colonial rule by the Japanese, and evaluates the dialectics and reflections surrounding Korea’s understanding of photography after the war. Toda Masako analyzes Japanese photography in the 1950s, the era of Japanese photographic aesthetics that was influenced by the trend of “subjectivism” in the international arena as the oppression of war gradually faded in time. Through archives and political consciousness buried deep in the core of the Taiwanese society since the Cold War era, Chang Shih-Lun examines the manipulation and governance mechanism of images, and issues with the construction and interpretation of the nationality in photography history.

    When analyzed in combination with other disciplines such as optics, chemistry, political sociology, cultural studies, and even semiotics and psychoanalysis, the space for exploration of the ontology of photography is constantly stretched, moved, and reconstructed. Hsieh Pei-Chun analyzes the photographic writing process and the cross-domain visual theory since the last century while outlining the development of photography theories. This issue is the first in a series of discussions. Gu Zheng shares his own experience as a visiting professor on photography history at the University of Heidelberg, Germany, where he put forward a critical reflection on the boundaries of research in the field of photography history. Edwin K. Lai's analysis of the series of historical inferences from when photography first came to Hong Kong comes to an end, presenting historical evidence of the rise of the “wet-plate method” in Hong Kong in the 1850s.

    In addition, we have a special interview with Cheng Tsun-Shing, featuring never-before-published photographs and negatives that he had taken in the late 1970s. We explore the imagery metaphors that are born when silver salt and light meet, and the issue of the essence of photography that he constantly philosophizes. At the same time, we feature Kao Chung-Li’s new works of sound and projection installations, analyzing the ready-made audio-visual equipment and the technical philosophy behind the unique one-take "projector movie", that is also the longest ever such film in history. The "Photobook Making Case Study" series also enters the "Design" chapter. In this issue, we interview Japanese designer Mori Daishiro and he shares his experiences in the area of graphic design.

    Although the journey of publication is difficult, we have been striving to continue with the basics of data exploration, collation, and interviews with limited resources, as we slowly expand the photography culture and historical discourses of Taiwan and Asia and showcase them to the world. We would like to thank all our dear readers and friends for your utmost support. Let us continue to explore the unknown universe of images in the new year.

    ---
    Voices of Photography 攝影之聲
    www.vopmagazine.com

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