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3023篇 您的检索式:作者名="Morgan R"
    题名 作者 年代 出处 被引量
1甘肃大地湾遗址距今6万年来的考古记录与旱作农业起源显示文摘报道了中国北方早期旱作农业起源地之一的甘肃秦安大地湾遗址Dadiwan06探方的最新发掘成果,根据黄土-古土壤序列、绝对测年(AMS 14C和光释光测年)、气候事件年龄和考古分析,为Dadiwan06探方的地层沉积建立了6.5万年的年代框架.考古材料分析显示,Dadiwan06探方完整记录了石英打制技术制品、细石器技术制品、大地湾一期文化以及仰韶文化陶器制品等分别代表中国北方原始采集狩猎经济、先进采集狩猎经济、早期栽培经济与成熟农业经济的4个不同发展阶段,反映了大地湾遗址距今6.0万年以来由采集狩猎经济逐步向农业经济过渡的持续人类活动历史。张东菊 陈发度 BETTINGER R L BARTON L 吉笃学 MORGAN C 王辉 程晓钟 董广辉 GUILDERSON T P 赵晖 2010科学通报2010,55,10:42
2Archaeological records of Dadiwan in the past 60 ka and the origin of millet agriculture显示文摘This paper reports the recent excavation of Unit Dadiwan06 at the Dadiwan site in Qin’an County, Gansu.A 65 ka chronological framework is established for Dadiwan06 on the basis of absolute dating (AMS 14C and OSL), stratigraphy, climate change events and archaeology.Artifact distributions reveal patterns of human behavioral variation and adaptation over the past 60 ka, from primitive hunting and gathering to advanced hunting and gathering, to primitive Neolithic agriculture, and finally to advanced Neolithic agriculture.ZHANG DongJu CHEN FaHu BETTINGER R L BARTON L JI DuXue MORGAN C WANG Hui CHENG XiaoZhong DONG GuangHui GUILDERSON T P ZHAO Hui 2010Chinese Science Bulletin2010,55,16:6
3Helicobacter pylori recurrence after eradication in Latin America:Implications for gastric cancer prevention显示文摘AIM To estimate Helicobacter pylori(H. pylori) recurrence rate in Latin America, a region with a significant H. pylori prevalence and gastric cancer burden.METHODS Pub Med, LILACS, Sci ELO, Cochrane databases and abstracts from relevant meetings were reviewed. Information collected included: Participants' characteristics, recruitment strategy, diagnostic modality, treatment arms, follow-up and recurrence rates. Recurrence was calculated using 100-patients-year rates, and data were pooled using a random effects model. The I2 statistic assessed between study heterogeneity. Meta-regression analyses evaluated for effect modifying variables. RESULTS Literature search yielded 163 articles. Twelve studies involving 4848 patients from 9 countries met inclusion criteria. Four hundred and thirty-two reinfections were recorded in 5487 person-years of follow-up. Pooled analysis showed a recurrence rate of 7.9 cases per 100 person-years(95%CI: 5.3-10.5). Meta-regression revealed that neither the antibiotic schema, a second antibiotic course, nor the diagnostic modality had an impact on the observed risk of recurrence. The recurrence rate in the first year after treatment, predominantly recrudescence,was 11.2(6.1-16.4) per 100 patient years. Recurrence in subsequent years, was only 6.2(3.8-8.7).CONCLUSION H. pylori recurrence rates in Latin America are significant, and with geographic variability, yet are acceptable based upon the current literature for consideration of large scale intervention trials. Further research in Latin America is warranted to evaluate the efficacy, cost-effectiveness, and potential adverse outcomes of proposed eradication programs.Juan E Corral Robertino Mera Corey W Dye Douglas R Morgan 2017World Journal of Gastrointestinal Oncology2017,9,4:5
4基因对于儿童肥胖的影响在小于胎龄儿童中或不重要显示文摘小于胎龄儿在日后的生活中面临着更高的患肥胖症和代谢性疾病的风险,目前认为这种风险主要与小于胎龄儿出生后生长加速有关。研究人员对奥克兰出生体重协作研究项目中的小于胎龄儿和适于胎龄儿做了研究,测量并计算这些儿童的BMI-Z评分,研究与成人肥胖相关的常见基因变异是否会与小于胎龄儿出生后生长加速有关。研究者将547名欧洲儿童(228名小于胎龄儿和319名适于胎龄儿)进行基因分型,他们被分为共计37个单核苷酸多态性(SNPs)候选基因。重复测量儿童的BMI,并以Z评分法评估肥胖程度。Dug Yeo Han Rinki Murphy Angharad R Morgan 郭婧 张帆 2013营养健康新观察2013,0,1:2
5Fecal microbes, short chain fatty acids, and colorectal cancer across racial/ethnic groups显示文摘AIM:To investigate differences in microbes and short chain fatty acid(SCFA) levels in stool samples from Hispanic and non-Hispanic African American,American Indian,and White participants.METHODS:Stool samples from twenty participants were subjected to analysis for relative levels of viable bacteria and for SCFA levels.Additionally,the samples were subjected to 16 S r RNA gene pyrosequencing for identification of bacteria present in the stool.We used a metagenome functional prediction technique to analyze genome copy numbers and estimate the abundance of butyrate kinase in all samples.RESULTS:We found that African Americans had significantly lower levels of acetate,butyrate,and total SCFAs than all other racial/ethnic groups.We also found that participant microbial profiles differed by racial/ethnic group.African Americans had significantly more Firmicutes than Whites,with enriched Ruminococcaceae.The Firmicutes /Bacteroidetes ratio was also significantly higher for African Americans than for Whites(P =0.049).We found Clostridium levels to be significantly and inversely related to total SCFA levels(P =0.019) and we found Bacteroides to be positively associated(P =0.027) and Clostridium to be negatively associated(P =0.012) with levels of butyrate.We also identified a correlation between copy number for a butyrate kinase predicted from 16 S r RNA gene abundance and levels of butyrate in stool.CONCLUSION:The identified differences in gut flora and SCFA levels may relate to colorectal cancer mortality differentials and may be useful as targets for future clinical and behavioral interventions.Christina M Hester Venkatakrishna R Jala Morgan GI Langille Shahid Umar K Allen Greiner Bodduluri Haribabu 2015World Journal of Gastroenterology2015,21,9:2
614-day triple, 5-day concomitant, and 10-day sequential therapies for Helicobacter pylori infection in seven Latin American sites: a randomised trial显示文摘E Robert Greenberg Garnet L Anderson Douglas R Morgan Javier Torres William D Chey Luis Eduardo Bravo Ricardo L Dominguez Catterina Ferreccio Rolando Herrero Eduardo C Lazcano-Ponce María Mercedes Meza-Montenegro Rodolfo Pe?a Edgar M Pe?a Eduardo Salazar- 2011The Lancet2011,,9790:2
7Hematopoietic AMPK [Beta]1 reduces mouse adipose tissue macrophage inflammation and insulin resistance in obesity显示文摘Galic Sandra Fullerton Morgan D Schertzer Jonathan D Sikkema Sarah Marcinko Katarina Walkley Carl R Izon David Honeyman Jane Chen Zhi-Ping van Denderen Bryce J Kemp Bruce E Steinberg Gregory R 2011Journal of Clinical Investigation2011,,12:2
8Causes of encephalitis and differences in their clinical presentations in England: a multicentre, population-based prospective study显示文摘Julia Granerod Helen E Ambrose Nicholas WS Davies Jonathan P Clewley Amanda L Walsh Dilys Morgan Richard Cunningham Mark Zuckerman Ken J Mutton Tom Solomon Katherine N Ward Michael PT Lunn Sarosh R Irani Angela Vincent David WG Brown Natasha S Crowcroft 2010The Lancet Infectious Diseases2010,,12:2
9Increasing starter cell lysis in Cheddar cheese using a bacteriocin- producing adjunct显示文摘MORGAN S ROSS R P HILL C 1997J Dairy Sci1997,80,:2
10Genetic influences on beef longissimus palatability in Charolais-and Limousin-sired steers and heifers显示文摘Wulf D M Tatum J D Green R D Morgan J B Golden B L and Smith G C 1996J Anim Sci1996,74,:2
11Selective in vitro growth of T lymphocytes from normal human bone marrows显示文摘Morgan D A Ruscetti F W Gallo R 1976Science1976,193,4257:1
12The commitment-trust theory of relationship marketing 显示文摘MORGAN R M HUNT S D 1994Journal of Marketing1994,58,3:1
13The European soil erosion model (EUROSEM) : A dynamic approach for predicting sediment transport from fields and small catch ments 显示文摘Morgan R P C Quinton T N Smith R E 1998Earth Surface Processes and Land forms1998,23,:1
14Cardiac troponin I measurement with the ACCESS immunoassay system:analytical and clinical performance characteristics 显示文摘 Apple F S Morgan D L 1998Clin Chem1998,44,:1
15The Commitment-Trust Theory of Relationship Marketing显示文摘 HUNT D S 1994Journal of Marketing Research1994,58,:1
16Preservation and fermentation: Past, present and future显示文摘ROSS R P MORGAN S HILL C 2002International Journal of Food Microbiology2002,79,12:1
17Beneficial effect of micro- injected trehalose on the cryosurvival of human oocytes 显示文摘Erdag G Eroglu A Morgan J R 2002Fer- til Steril2002,44,:1
18Assessment of erosion haz- ard with the USLE and GIS A ease study of the Upper Ewaso Nglro North basin of Kenya显示文摘Bancy M Mati Royston P C Morgan Francis N Gichuki John N Quinton Tim R Brewer Hans P l iniger 2000lnternation Journal of Applied Earth Ob- servation and Geoinformation2000,2,2:1
19The european soil erosion model (EUROSEM):a dynamic approach for predicting sediment transport from fields and small catchments 显示文摘Morgan R P C Quinton J N Smith R E 1998Earth Surf Processed1998,23,:1
20Evaluation of the ergogenic properties of ginseng:an update显示文摘Bahrke M S Morgan W R 2000Sports Med2000,29,2:1
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