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  • Your search results: "C21"
Showing 1 - 20 results of 3,746 for search '"C21"', query time: 1.44s Narrow search
  • 1
    Cover Image Journal Article
    Linking collaborative R&D strategies with the research and innovation performance of SMEs in peripheral regions:Do spatial and organizational choices make a difference?
    by Mitze, Timo   Alecke, Björn   Reinkowski, Janina   Untiedt, Gerhard
    2015
    “...We examine the empirical link between collaborative R&D strategies and the research and innovation performance of small- and medium-sized enterprises in...”
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  • 2
    Cover Image Journal Article
    Linking collaborative R&D strategies with the research and innovation performance of SMEs in peripheral regions:Do spatial and organizational choices make a difference?
    by Mitze, Timo   Alecke, Björn   Reinkowski, Janina   Untiedt, Gerhard
    2015
    “...We examine the empirical link between collaborative R&D strategies and the research and innovation performance of small- and medium-sized enterprises in...”
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  • 3
    Cover Image Journal Article
    Applied Spatial Econometrics: Raising the Bar
    by Elhorst, J. Paul Published in Spatial economic analysis (01.03.2010)
    “...This paper places the key issues and implications of the new 'introductory' book on spatial econometrics by James LeSage & Kelley Pace (2009) in a broader...”
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  • 4
    Cover Image Journal Article
    ROBUST NONPARAMETRIC CONFIDENCE INTERVALS FOR REGRESSION-DISCONTINUITY DESIGNS
    by Sebastian Calonico   Matias D. Cattaneo   Rocio Titiunik Published in Econometrica (01.11.2014)
    “...In the regression-discontinuity (RD) design, units are assigned to treatment based on whether their value of an observed covariate exceeds a known cutoff. In...”
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  • 5
    Cover Image Journal Article
    Regression discontinuity designs: A guide to practice
    by Imbens, Guido W   Lemieux, Thomas Published in Journal of econometrics (2008)
    “...In regression discontinuity (RD) designs for evaluating causal effects of interventions, assignment to a treatment is determined at least partly by the value...”
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  • 6
    Cover Image Journal Article
    MATCHING ON THE ESTIMATED PROPENSITY SCORE
    by Alberto Abadie   Guido W. Imbens Published in Econometrica (01.03.2016)
    “...Propensity score matching estimators (Rosenbaum and Rubin (1983)) are widely used in evaluation research to estimate average treatment effects. In this...”
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  • 7
    Cover Image Journal Article
    C21 steroids from Streptocaulon juventas (Lour) Merr. induce apoptosis in HepG2
    by Zhu, Wanfang   Su, Shengzhi   Xu, Yunhui   Xie, Zijian   Bai, Yidan   Liu, Wenyuan   Abe, Masahiko   Akihisa, Toshihiro   Feng, Feng   Zhang, Jie Published in Steroids (01.12.2018)
    “...[Display omitted] •Isolation and identification three new and ten known C21 steroids from Streptocaulon juventas.•Cytotoxicity activities against HepG2 and LO2...”
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  • 8
    Cover Image Journal Article
    Manipulation of the running variable in the regression discontinuity design: A density test
    by McCrary, Justin Published in Journal of econometrics (2008)
    “...Standard sufficient conditions for identification in the regression discontinuity design are continuity of the conditional expectation of counterfactual...”
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  • 9
    Cover Image Journal Article
    SOME PRACTICAL GUIDANCE FOR THE IMPLEMENTATION OF PROPENSITY SCORE MATCHING
    by Caliendo, Marco   Kopeinig, Sabine Published in Journal of economic surveys (01.02.2008)
    “...Propensity score matching (PSM) has become a popular approach to estimate causal treatment effects. It is widely applied when evaluating labour market...”
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  • 10
    Cover Image Journal Article
    Large sample properties of the matrix exponential spatial specification with an application to FDI
    by Debarsy, Nicolas   Jin, Fei   Lee, Lung-fei Published in Journal of econometrics (01.09.2015)
    “...This paper studies large sample properties of the matrix exponential spatial specification (MESS). We find that the quasi-maximum likelihood estimator (QMLE)...”
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  • 11
    Cover Image Journal Article
    Regression Discontinuity Designs in Economics
    by Lee, David S   Lemieuxa, Thomas Published in Journal of economic literature (01.06.2010)
    “...This paper provides an introduction and "user guide" to Regression Discontinuity (RD) designs for empirical researchers. It presents the basic theory behind...”
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  • 12
    Cover Image Journal Article
    Saralasin and Sarile Are AT2 Receptor Agonists
    by Guimond, Marie-Odile   Hallberg, Mathias   Gallo-Payet, Nicole   Wallinder, Charlotta Published in ACS medicinal chemistry letters (09.10.2014)
    “...Saralasin and sarile, extensively studied over the past 40 years as angiotensin II (Ang II) receptor blockers, induce neurite outgrowth in a NG108-15 cell...”
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  • 13
    Cover Image Journal Article
    Dynamic spatial panels: models, methods, and inferences
    by Elhorst, J. Paul Published in Journal of geographical systems (01.01.2012)
    “...This paper provides a survey of the existing literature on the specification and estimation of dynamic spatial panel data models, a collection of models for...”
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  • 14
    Cover Image Journal Article
    Inference on Treatment Effects after Selection among High-Dimensional Controls
    by ALEXANDRE BELLONI   VICTOR CHERNOZHUKOV   CHRISTIAN HANSEN Published in The Review of economic studies (01.04.2014)
    “...We propose robust methods for inference about the effect of a treatment variable on a scalar outcome in the presence of very many regressors in a model with...”
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  • 15
    Cover Image Journal Article
    Interconversion of Functional Activity by Minor Structural Alterations in Nonpeptide AT2 Receptor Ligands
    by Wallinder, Charlotta   Sköld, Christian   Botros, Milad   Guimond, Marie-Odile   Hallberg, Mathias   Gallo-Payet, Nicole   Karlén, Anders   Alterman, Mathias Published in ACS medicinal chemistry letters (12.02.2015)
    “...Migration of the methylene imidazole side chain in the first reported selective drug-like AT2 receptor agonist C21/M024 (1) delivered the AT2 receptor...”
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  • 16
    Cover Image Journal Article
    Recent Developments in the Econometrics of Program Evaluation
    by Imbens, Guido W   Wooldridge, Jeffrey M Published in Journal of economic literature (01.03.2009)
    “...Many empirical questions in economics and other social sciences depend on causal effects of programs or policies. In the last two decades, much research has...”
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  • 17
    Cover Image Journal Article
    GENETIC MATCHING FOR ESTIMATING CAUSAL EFFECTS: A GENERAL MULTIVARIATE MATCHING METHOD FOR ACHIEVING BALANCE IN OBSERVATIONAL STUDIES
    by Alexis Diamond   Jasjeet S. Sekhon Published in The review of economics and statistics (01.07.2013)
    “...This paper presents genetic matching, a method of multivariate matching that uses an evolutionary search algorithm to determine the weight each covariate is...”
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  • 18
    Cover Image Journal Article
    New Sweet-Tasting C21 Pregnane Glycosides from the Roots of Myriopteron extensum
    by Sun, Guo   Zhang, Hong-Xia   Ma, Yong-Peng   Li, Ming-Xiang   Du, Zhi-Zhi Published in Journal of agricultural and food chemistry (25.07.2018)
    “...To investigate the sweet-tasting components in the roots of Myriopteron extensum, the phytochemical study of its roots was conducted, which led to the...”
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  • 19
    Cover Image Journal Article
    NEW EVIDENCE ON THE FINITE SAMPLE PROPERTIES OF PROPENSITY SCORE REWEIGHTING AND MATCHING ESTIMATORS
    by Matias Busso   John DiNardo   Justin McCrary Published in The review of economics and statistics (01.12.2014)
    “...Frölich (2004) compares the finite sample properties of reweighting and matching estimators of average treatment effects and concludes that reweighting...”
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  • 20
    Cover Image Journal Article
    C21 steroidal glycosides from Cynanchum auriculatum and their neuroprotective effects against H2O2-induced damage in PC12 cells
    by Qian, Xicheng   Li, Baocai   Li, Peng   Wang, Dong   Dai, Weifeng   Zhang, Mi Published in Phytochemistry (Oxford) (01.08.2017)
    “...Twenty-three undescribed previously C21 steroidal glycosides, named saccatols D–K and cynsaccatols I−W, together with six known analogs were isolated from the...”
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