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177篇 您的检索式:作者名="Ammerer"
    题名 作者 年代 出处 被引量
1Circulating micro RNA, mi R-122 and mi R-221 signature in Egyptian patients with chronic hepatitis C related hepatocellular carcinoma显示文摘AIM: To explore the potential usefulness of serum miR-122 and miR-221 as non-invasive diagnostic markers of hepatitis C virus(HCV)-related hepatocellular carcinoma(HCC).METHODS: This prospective study was conducted on 90 adult patients of both sex with HCV-related chronic liver disease and chronic hepatitis C related HCC. In addition to the 10 healthy control individuals, patients were stratified into; interferon-na?ve chronic hepatitis C(CH)(n = 30), post-hepatitis C compensated cirrhosis(LC)(n = 30) and treatment-naive HCC(n = 30). All patients and controls underwent full clinical assessment and laboratory investigations in addition to the evaluation of the level of serum miR NA expression by RT-PCR.RESULTS: There was a significant fold change in serum mi RNA expression in the different patient groups when compared to normal controls; mi R-122 showed significant fold increasing in both CH and HCC and significant fold decrease in LC. On the other hand, mi R-221 showed significant fold elevation in both CH and LC groups and significant fold decrease in HCC group(P = 0.01). Comparing fold changes in miR NAs in HCC group vs non HCC group(CH and Cirrhosis), there was non-significant fold elevation in miR-122(P = 0.21) and significant fold decreasing in miR-221 in HCC vs non-HCC(P = 0.03). ROC curve analysis for miR-221 yielded 87% sensitivity and 40% specificity for the differentiation of HCC patients from non-HCC at a cutoff 1.82. CONCLUSION: Serum miR-221 has a strong potential to serve as one of the novel non-invasive biomarkers of HCC.Hassan El-Garem Ayman Ammer Hany Shehab Olfat Shaker Mohammed Anwer Wafaa El-Akel Heba Omar 2014World Journal of Hepatology2014,6,11:18
2Corrosion Inhibition of Carbon Steel in Hot Hydrochloric Acid Solutions显示文摘T. Y. Soror(Chemistry Department, Faculty of Science, Cairo University, Cairo, Egypt)H. A.E1 Dahan(Department of Electrochemistry and Corrosion, National Research Centre, Dokki, Cairo, Egypt)N. G.E1 Sayed Ammer(Central Chemical Laboratories, Sabtia, Cairo 1999Journal of Materials Science & Technology1999,15,6:4
3National Forest Inventories capture the multifunctionality of managed forests in Germany显示文摘Background:Forests perform various important ecosystem functions that contribute to ecosystem services.In many parts of the world,forest management has shifted from a focus on timber production to multi-purpose forestry,combining timber production with the supply of other forest ecosystem services.However,it is unclear which forest types provide which ecosystem services and to what extent forests primarily managed for timber already supply multiple ecosystem services.Based on a comprehensive dataset collected across 150 forest plots in three regions differing in management intensity and species composition,we develop models to predict the potential supply of 13 ecosystem services.We use those models to assess the level of multifunctionality of managed forests at the national level using national forest inventory data.Results:Looking at the potential supply of ecosystem services,we found trade-offs(e.g.between both bark beetle control or dung decomposition and both productivity or soil carbon stocks)as well as synergies(e.g.for temperature regulation,carbon storage and culturally interesting plants)across the 53 most dominant forest types in Germany.No single forest type provided all ecosystem services equally.Some ecosystem services showed comparable levels across forest types(e.g.decomposition or richness of saprotrophs),while others varied strongly,depending on forest structural attributes(e.g.phosphorous availability or cover of edible plants)or tree species composition(e.g.potential nitrification activity).Variability in potential supply of ecosystem services was only to a lesser extent driven by environmental conditions.However,the geographic variation in ecosystem function supply across Germany was closely linked with the distribution of main tree species.Conclusions:Our results show that forest multifunctionality is limited to subsets of ecosystem services.The importance of tree species composition highlights that a lack of multifunctionality at the stand level can be compensated by managing forests at the landscape level,when stands of complementary forest types are combined.These results imply that multi-purpose forestry should be based on a variety of forest types requiring coordinated planning across larger spatial scales.Nadja K.Simons María R.Felipe-Lucia Peter Schall Christian Ammer Jürgen Bauhus Nico Blüthgen Steffen Boch François Buscot Markus Fischer Kezia Goldmann Martin M.Gossner Falk Hänsel Kirsten Jung Peter Manning Thomas Nauss Yvonne Oelmann Rodica Pena Andrea Polle Swen C.Renner Michael Schloter Ingo Schöning Ernst-Detlef Schulze Emily F.Solly Elisabeth Sorkau Barbara Stempfhuber Tesfaye Wubet Jörg Müller Sebastian Seibold Wolfgang W.Weisser 2021Forest Ecosystems2021,8,1:2
4Video multieast over the Internet显示文摘Xue Li Mastafa H Ammer 1999IEEE Network Magazine1999,,:1
5Tight gas sands development: How to dramatically improve recovery efficiency 显示文摘Kuuskraa V A Ammer J 2004Gas TIPS2004,,:1
6PicoRadio supports ad hoc ultra-low power wireless networking 显示文摘Rabaey J M Ammer M J da Silva J L Jr 2000Computer2000,33,7:1
7Pico radio supports Ad hoe ultra-low power wireless networking显示文摘Rabaey M J Ammer M Silva L J 2000IEEE Computer Magazine2000,33,7:1
8Chronic morphine treatment inhibits opioids receptor desensitization and internalization显示文摘Eisinger DA Ammer H Schulz R 2002J Neurosci2002,22,10:1
9What moves the stock and bond markets? A variance decomposition for long-term asset returns显示文摘Campbell John Y Ammer J 1993Journal of Finance1993,48,:1
10What moves the stock and bond markets?A variance decomposition for long-term asset returns显示文摘CAMPBELL J Y AMMER J 1993The Journal of Finance1993,48,1:1
11Application of different fragmentation techniques for the analysis of phosphopeptides using a hybrid linear ion trap-FTICR mass spectrometer 显示文摘STINGL C IHLING C AMMERER G 2006Bioch Biophy Acta (BBA) - Proteins Proteomics2006,1764,12:1
12Chronic morphine treatment inhibits opioid receptor desensitization and internalization显示文摘 Ammer H Schulz R 2002J Neurosci2002,22,10:1
13Problems and options inmodeling fine root biomass single mature Norway spruce trees at giver points from stand data显示文摘Ammer C Wagner S 2002Can J For Res2002,32,3:1
14On the Microwave Digestion of Soils and Sediments for Determination of Lanthanides and Some Toxic and Essential Elements by Inductively Coupled Plasma Source Mass Spectrometry显示文摘Ivanov A J Djingov A R Ammer S K 2001Talanta2001,,54:1
15Outcome in patients with intracerebralhemorrhage:predictors of survival显示文摘Karnik R Valentin A Ammerer HP 2000Wien Klin Wochenschr2000,112,4:1
16Isolation and amino-acid seq-uence analysis of human sperm protamines P1 and P2:occurrence of two forms of protamine P2 显示文摘Ammer H Henschen A 1986Biol Chem Hoppe Seyler1986,367,:1
17Retrospective study of a series of 26 carcinomatous meningitis secondary to lung cancer显示文摘H ammerer V Pau li G Quoix E 2005Bull Cancer2005,92,11:1
18A comparison between the ISODATA and the eCognition classification methods on basis of field data显示文摘MANAKOS I SCHNEIDER T AMMER U 2000IAPRS2000,33,:1
19Picorodio supports ad hoc ultra-low power wireless networking显示文摘Rabacy J J Ammer M J da Silva Jr J L 2000Computer2000,33,7:1
20Picorodio Supports Ad Hoe Ultra-low Power Wireless Networking 显示文摘Rabaey J J Ammer M J da Silva J r J L 2000Computer2000,33,7:1
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