Browsing by Author "Zhou, Wei"

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    Data Related to Association studies of up to 1.2 million individuals yield new insights into the genetic etiology of tobacco and alcohol use
    (2019-01-16) Liu, Mengzhen; Jiang, Yu; Wedow, Robbee; Li, Yue; Brazel, David M; Chen, Fang; Datta, Gargi; Davila-Velderrain, Jose; McGuire, Daniel; Tian, Chao; Zhan, Xiaowei; 23andMe Research Team; HUNT All-In Psychiatry; Choquet, Hélène; Docherty, Anna R; Faul, Jessica D; Foerster, Johanna R; Fritsche, Lars G; Gabrielsen, Maiken Elvestad; Gordon, Scott D; Haessler, Jeffrey; Hottenga, Jouke-Jan; Huang, Hongyan; Jang, Seon-Kyeong; Jansen, Philip R; Ling, Yueh; Mägi, Reedik; Matoba, Nana; McMahon, George; Mulas, Antonella; Orrù, Valeria; Palviainen, Teemu; Pandit, Anita; Reginsson, Gunnar W, Skogholt, Anne Heidi; Smith, Jennifer A; Taylor, Amy E; Turman, Constance; Willemsen, Gonneke; Young, Hannah; Young, Kendra A; Zajac, Gregory J M; Zhao, Wei; Zhou, Wei; Bjornsdottir, Gyda; Boardman, Jason D; Boehnke, Michael; Boomsma, Dorret I; Chen, Chu; Cucca, Francesco; Davies, Gareth E; Eaton, Charles B; Ehringer, Marissa A; Esko, Tõnu; Fiorillo, Edoardo; Gillespie, Nathan A; Gudbjartsson, Daniel F; Haller, Toomas; Harris, Kathleen Mullan; Heath, Andrew C; Hewitt, John K; Hickie, Ian B; Hokanson, John E; Hopfer, Christian J; Hunter, David J; Iacono, William G; Johnson, Eric O; Kamatani, Yoichiro; Kardia, Sharon L. R; Keller, Matthew C; Kellis, Manolis; Kooperberg, Charles; Kraft, Peter; Krauter, Kenneth S; Laakso, Markku; Lind, Penelope A; Loukola, Anu; Lutz, Sharon M; Madden, Pamela A F; Martin, Nicholas G; McGue, Matt; McQueen, Matthew B; Medland, Sarah E; Metspalu, Andres; Mohlke, Karen L; Nielsen, Jonas B; Okada, Yukinori; Peters, Ulrike; Polderman, Tinca J C; Posthuma, Danielle; Reiner, Alexander P; Rice, John P; Rimm, Eric; Rose, Richard J; Runarsdottir, Valgerdur; Stallings, Michael C; Stančáková, Alena; Stefansson, Hreinn; Thai, Khanh K; Tindle, Hilary A; Tyrfingsson, Thorarinn; Wall, Tamara L; Weir, David R; Weisner, Constance; Whitfield, John B; Winsvold, Bendik Slagsvold; Yin, Jie; Zuccolo, Luisa; Bierut, Laura J; Hveem, Kristian; Lee, James J; Munafò, Marcus R; Saccone, Nancy L; Willer, Cristen J; Cornelis, Marilyn C; David, Sean P; Hinds, David A; Jorgenson, Eric; Kaprio, Jaakko; Stitzel, Jerry A; Stefansson, Kari; Thorgeirsson, Thorgeir E; Abecasis, Gonçalo; Liu Dajiang J; Vrieze Scott; liu00282@umn.edu; Liu, Mengzhen
    We conducted a meta-analysis of over 30 genome wide association studies (GWAS) in over 1.2 million participants with European ancestry on nicotine and substance use. Specifically, we targeted different stages and kinds of substance use from initiation (smoking initiation and age of regular smoking initiation) to regular use (drinks per week and cigarettes per day) to cessation (smoking cessation). The GWAS included have all been imputed to Haplotype Reference Consortium, 1000 Genomes or a combination including more specific reference panels. The studies are then meta-analyzed using sample size, allele frequencies and the imputation quality score as weight. Here we present the final set of filtered meta-analysis summary statistics as presented in the paper (https://doi.org/10.1038/s41588-018-0307-5) excluding 23andMe. As per requirement and to ease dissemination of our results for other scientific endeavors, we are sharing our results here to facilitate downloading.
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    On the interior regularity for degenerate elliptic equations.
    (2012-08) Zhou, Wei
    We discuss the concept and motivations of quasiderivatives and give an example constructed by random time change, Girsanov's theorem and Levy's theorem. Then we use this probabilistic technique to investigate the regularity of the probabilistic solution of the Dirichlet problem for degenerate elliptic equations, from linear cases to fully nonlinear cases. In each Dirichlet problem we consider, the probabilistic solution is the unique solution in our setting.