Results 141 to 150 of about 68,002 (248)

[[alternative]]Stochastic Bifurcation in Genetic Regulation(I) [PDF]

計畫編號：NSC94-2112-M032-008研究期間：200508~200607研究經費：556,000[[abstract]]在基因調控的網絡中，基因活動的控制是藉由分子信號來決定該基因的轉錄與相應蛋白 質的合成之時機與頻繁程度。轉錄調控系統要發揮功能，就必須能夠在二個以上的表現 狀態間轉換，而且能夠"記得"由瞬時調控信號所設定的狀態。過去許多對轉錄調控所做 的數學模型是將基因產物的製造過程以確定性的方程式來描述(由定性的推理便可推斷 此系統至少有兩種穩定的不變態，所以演進的方程組不可能是線性的)，
曾文哲
core  

The coordination of dehydration tolerance and avoidance in oaks is mediated by leaf habit across a precipitation gradient

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Forests worldwide are increasingly impacted by drought due to climate change, prompting plants to adapt through dehydration tolerance (DT) and avoidance (DA), two distinct physiological strategies.
Xingyun Liang, Bo Cui, Xiaoyi Wang, Hui Liu, Pengcheng He, Deyi Yin, Weize Tang, Yangsiding Wang, Liangning Liao, Qiang Xia, Guilin Wu, Qing Ye   +11 more
wiley   +1 more source

雌激素受体基因多态性与绝经后女性代谢综合征的相关性研究

Zhongguo shiyan zhenduanxue, 2014
目的观察雌激素受体（ER）α和β基因多态与绝经后女性代谢综合征（MS）的关系。方法 311例无亲缘关系的绝经后MS患者和231例年龄相匹配的健康对照人群,采用聚合酶链反应-限制性片段长度多态性（PCRRFLP）技术,检测ERα（XbaⅠ、PvuⅡ）和β基因（RsaⅠ、AluⅠ）多态性,并采用SHEsis在线计算平台进行统计学分析。结果与对照组相比,MS患者体重、BMI、SBP、DBP以及血清FBS、GSP、TG水平显著高于对照组,而HDLC水平显著低于对照组（P0.05）;对照组和MS组RR、Rr ...
孙树凯, 翟玉娥, 赵鹏, 田清武, 彭依群, 翟木绪   +5 more
doaj  

Climate stability drives multidimensional nestedness of amphibian assemblages in a Chinese sky island system

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract The nested subset pattern (nestedness) has been widely used to explain species distributions in island and fragmented systems. Mountain sky islands serve as critical natural laboratories for understanding the evolutionary consequences of geographic isolation and climate
Caiwen Zhang, Shihang Xu, Chuanwu Chen, Chenxiu Zhan, Baowei Zhang, Yanping Wang   +5 more
wiley   +1 more source

Elevation, soil pH and calcium availability shape regional and local scale spatial patterns of PhoD gene abundance in tropical and subtropical forests

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Organic phosphorus mineralization is a critical process in the phosphorus cycle, governing phosphorus bioavailability for plants. The PhoD gene, which encodes the key enzyme alkaline phosphatase, serves as a valuable biomarker for this process.
Sandhya Mishra, Shangwen Xia, Wenting Wang, Xiaodong Yang   +3 more
wiley   +1 more source

ATP敏感性钾离子通道基因多态性与冠心病的相关分析

Zhongguo shiyan zhenduanxue, 2007
目的初步探讨中国汉族人群Kir6.2基因E23K多态性与冠心病（CHD）的关系。方法提取119例CHD患者和101例对照者的基因组DNA,采用PCR-限制性位点多态性（PCR-RSP）方法检测Kir6.2基因E23K多态性分布特点,同时检测各项血脂水平。结果湖北地区汉族人群中普遍存在该位点的基因多态性,在冠心病组中,G等位基因频率高于正常组（63.4%vs.56.9%,P>0.05）;A等位基因频率低于正常组（36.6%vs.43.1%,P>0.05）,两组间等位基因频率无显著性差异（P>0.05 ...
鲁敏翔
doaj  

Diagnosing scaling bottlenecks in 10 community conservation initiatives in southern and eastern Africa

Conservation Biology, EarlyView.
Scaling area‐based conservation, including initiatives led or comanaged by Indigenous Peoples and local communities, is a flagship goal of the Kunming‐Montreal Global Biodiversity Framework. Conservationists often aspire to scale initiatives, but this is rarely achieved in practice. Identifying and addressing factors that limit initiative adoption (i.e.
Thomas Pienkowski, Matt Clark, Arundhati Jagadish, Aklei Albert, Mohanjeet Brar, Tarn Breedveld, Linda Chinangwa, Deepali Gohil, Deziderius Irumba, Ramzy Kanaan, Rose Peter Kicheleri, Phillip Kihumuro, Wilhelm Andrew Kiwango, Mathew Bukhi Mabele, Paul Matiku, Gimbage Mbeyale, Musingo Tito E. Mbuvi, Arthur Mugisha, Stanley Mwango, Iddi Mwanyoka, Robson Nyirenda, Geoffrey Oula, Jón Geir Pétursson, Taddeo Rusoke, Nelson Turyahabwe, Moses Kazungu, Lessah Mandoloma, Charles Meshack, Kaala B. Moombe, Francis Moyo, Victor K. Muposhi, Amos Ochieng, Edwin Sabuhoro, Anna Spenceley, Emmanuel Sulle, David Mwesigye Tumusiime, Paulo Wilfred, Peadar Brehony, Elias Damtew Assef, Morena Mills   +39 more
wiley   +1 more source

吉林省地区汉族和朝鲜族健康人群ACE基因多态性分布的研究

Zhongguo shiyan zhenduanxue, 2007
目的分析我国吉林省地区朝鲜族和汉族人群血管紧张素转换酶（angiotensin converting enzyme,ACE）基因多态性的分布。方法应用聚合酶链反应（polymerase chain reaction,PCR）等技术检测81名健康汉族和96名朝鲜族ACE基因插入/缺失（I/D）多态性及其分布。结果汉族人群II型I、D型和DD型频率分别为34.38%,28.12%和37.50%;朝鲜族人群分别为38.27%,19.75%和41.98%,两组ACE基因基因型的分布差异无显著性（P=0.433）;
叶啸, 李其壮, 李忠民, 刘亚芳, 吴琼, 曲珊珊, 全成实   +6 more
doaj  

Representativeness of the Natura 2000 network for preserving plant biodiversity in the European Union

Conservation Biology, EarlyView.
Abstract The Natura 2000 (N2K) network of protected areas is one of the main tools for area‐based conservation in the European Union (EU), yet its role in preserving plant biodiversity requires better understanding. We examined data kept in the European Vegetation Archive from over 1.2 million vegetation plots and obtained over 14.2 million plant ...
Michele Di Musciano, Piero Zannini, Riccardo Testolin, Francesco Maria Sabatini, Diletta Santovito, Borja Jiménez‐Alfaro, Florian Jansen, Milan Chytrý, Lorenzo Ricci, Emiliano Agrillo, Fabio Attorre, Idoia Biurrun, Gianmaria Bonari, Hans Henrik Bruun, Luigi Cao Pinna, Andraž Čarni, Maria Laura Carranza, Roberto Cazzolla Gatti, Jürgen Dengler, Michele De Sanctis, Úna Fitzpatrick, Anna Rita Frattaroli, Emmanuel Garbolino, Stephan Hennekens, Ute Jandt, Jan Jansen, Zygmunt Kacki, Ilona Knollová, Jonathan Lenoir, Jesper Erenskjold Moeslund, Tomáš Peterka, Nataša Pipenbaher, Duccio Rocchini, Eszter Ruprecht, Solvita Rūsiņa, Urban Šilc, Sonja Škornik, Grzegorz Swacha, Milan Valachovič, Kiril Vassilev, Wolfgang Willner, Alessandro Chiarucci   +41 more
wiley   +1 more source

[Clinical features and variant spectrum of <i>FGFR3</i>-related disorders]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi
Gu SL, Ying LW, Chang GY, Li X, Li J, Ding Y, Yao RE, Yu TT, Wang XM.   +8 more
europepmc   +1 more source