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2096篇 您的检索式:作者名="HOUGHTON"
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1Temporal patterns of land-use change and carbon storage in China and tropical Asia显示文摘Evaluating the annual sources and sinks of carbon from land-use changehelps constrain other terms in the global carbon cycle and may help countries choose how to comply with commitments for reduced emissions. This paper presents the results of recent analyses of land-use change in China and tropical Asia. The original forest areas are estimated to have covered 546×106 ha in tropical Asia and 425×106 ha in China. By 1850, 44% of China's forests had been cleared, and another 27% was lost between 1850 and 1980, leaving China with 13% forest cover (29% of the initial forest area). Tropical Asia is estimated to have lost 26%of its initial forest cover before 1850 and another 33% after 1850. The annual emissions of carbon from the two regions reflect the different histories over the last 150 years, with China's emissions peaking in the late 1950s (at 0.2-0.5 Pg C@a-1) and tropical Asia's emissions peaking in 1990s (at 1.0 Pg C@a-1). Despite the fact that most deforestation has been for new agricultural land, the majority of the lands cleared from forests in China are no longer croplands, but fallow or degraded shrublands. Unlike croplands, the origins of these other lands are poorly documented, and thus add considerable uncertainty to estimates of flux before the 1980s. Nevertheless, carbon emissions from China seem to have decreased since the 1960s to nearly zero at present. In contrast, emissions of carbon from tropical Asia were higher in the 1990s than that at any time in the past.R. A. Houghton 2002Science China(Life Sciences)2002,45,z1:40
2Stem cells and cancer:Evidence for bone marrow stem cells in epithelial cancers显示文摘癌症通常在慢性炎和感染的地点产生。尽管这个协会长被认出了,原因仍然保持不清楚。在胃肠道以内,有与癌症联系的煽动性的条件的许多例子,并且这些包括食管, Helicobacter 感染和胃的癌症的倒流疾病和 Barrettos 腺癌,煽动性的肠疾病和颜色表面的癌症和病毒的肝炎导致肝细胞癌。有由哪个慢性炎被要求了导致在一次无穷的尝试包括提高的增长愈合的癌症的几机制损坏,最近创造 pro-carcinogenic 环境和更多的坚持的煽动性的环境的存在为可以象肿瘤一样贡献肿瘤的基质部件的传播导出髓的干细胞的嫁接的一个角色自己集中。这里,我们在我们在动物模型以及在人理解导出髓的干细胞传播骨头的贡献到肿瘤的形成考察最近的进展。Han-Chen Li Calin Stoicov Arlin B Rogers JeanMarie Houghton 2006World Journal of Gastroenterology2006,12,3:16
3Carcinogenesis of Helicobacter pylori显示文摘Pelayo Correa JeanMarie Houghton 2007Gastroenterology2007,,2:6
4Leads from Indian medicinal plants with hypoglycemic potentials显示文摘Pulok K. Mukherjee Kuntal Maiti Kakali Mukherjee Peter J. Houghton 2006Journal of Ethnopharmacology2006,,1:4
5Analysis of a Successful Immune Response against Hepatitis C Virus显示文摘Stewart Cooper Ann L Erickson Erin J Adams Joe Kansopon Amy J Weiner David Y Chien Michael Houghton Peter Parham Christopher M Walker 1999Immunity1999,,4:3
6α-Amylase inhibitory activity of some Malaysian plants used to treat diabetes; with particular reference to Phyllanthus amarus显示文摘Hasenah Ali P.J. Houghton Amala Soumyanath 2006Journal of Ethnopharmacology2006,,3:3
7Helicobacter pylori and Gastric Cancer: A New Paradigm For Inflammation-Associated Epithelial Cancers显示文摘JeanMarie Houghton Timothy C. Wang 2005Gastroenterology2005,,6:3
8α-Amylase inhibitory activity of some Malaysian plants used to treat diabetes; with particular reference to Phyllanthus amarus显示文摘Hasenah Ali P.J. Houghton Amala Soumyanath 2006Journal of Ethnopharmacology2006,,3:2
9The relationship among biases, mispereeptions, and the introduction of pioneering products: Examining differences in venture decision Contexts 显示文摘Simon M Houghton S M 2002Entrepreneurship Theory and Practice2002,,:1
10Transcriptional complementarity in breast cancer:application to detection of circulating tumor cells显示文摘Houghton R L Dillon D C Molesh D A 2001Mol Diagn2001,6,2:1
11Molecular and immunological characterization of Mycobacterium tuberculosis CFP-10, an immunodiagnostic antigen missing in Mycobacterium boris BCG显示文摘Dillon DC Alderson MR Day CH Bement T Campos Neto A Skeiky YA Vedvick T Badaro R Reed SG Houghton R 2000J Clin Microbiol2000,38,9:1
12Benefit from adjuvant tamoxifen therapy in primary breast cancer patients according oestrogen receptor,progesterone receptor,EGF receptor and HER2 status显示文摘Dowsett M Houghton J Iden C 2006Ann Oncol2006,17,5:1
13Effect of influent organic content on digested sludge extracellular polymer content and dew waterability 显示文摘HOUGHTON J I STEPHENSON T 2002Water Research2002,36,:1
14Apoptosis in helicobacter pylori-associated gastric and duodenal ulcer disease is mediated via the Fas antigen pathway显示文摘Houghton T Korah RM Condon R 1999Dig Dis Sci1999,44,3:1
15Effect of influent organic content on digested sludge extracellular polymer content and dewaterability 显示文摘Houghton J I Stephenson T 2002Water Research2002,36,14:1
16lmmune function in patients undergoing opBn VS laparopic cholecutectomy显示文摘Redmoud HP Watson RW Houghton T et ai 2007Arch Surg2007,129,12:1
17Carbon pools and flux of global forest ecosystems 显示文摘Dixon R K Brown S Houghton R A 1994Science1994,263,:1
18Pancreaticobiliary and duode- nal perforations after periampullary endoscopic proce- dures : diagnosis and management显示文摘Fatima J Baron T H Topazian M D Houghton S G Iqbal C W Ott B J 2007Arch Surg2007,142,:1
19Carbon pools and flux of global forest ecosystems显示文摘Dixon R K Brown S Houghton R A 1994Science1994,262,:1
20Popliteal entrapment syndrome显示文摘Sinha S Houghton J Holt P J 2012J Vasc Surg2012,55,1:1
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