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作者:Shen, Jincheng; Schwartz, Joel; Baccarelli, Andrea A.; Lin, Xihong
作者单位:Utah System of Higher Education; University of Utah; Harvard University; Harvard T.H. Chan School of Public Health; Columbia University; Columbia University; Harvard University; Harvard T.H. Chan School of Public Health
摘要:The rapid growth of high -throughput genomic and epigenomic data enables exploration of biological mechanisms underlying diseases causing processes beyond traditional association studies. Using the causal mediation analysis framework, we develop the kernel machine difference (KMD) method, which provides a testing procedure for detecting the mediation effects of a set of mediators, for example, the DNA methylation probes within a region or a gene. Our method extends the difference method in sin...
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作者:Xie, Xiulin; Qian, Nicole; Qiu, Peihua
作者单位:State University System of Florida; Florida State University; Northwestern University; State University System of Florida; University of Florida
摘要:Air pollution surveillance is critically important for public health. One air pollutant, ozone, is extremely challenging to analyze properly, as it is a secondary pollutant caused by complex chemical reactions in the air and does not emit directly into the atmosphere. Numerous environmental studies confirm that ozone concentration levels are associated with meteorological conditions, and long-term exposure to high ozone concentration levels is associated with the incidence of many diseases, in...
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作者:DE Silva, Dilishiya; Fisher, Rebecca; Radford, Ben; Hompson, Helen; Mcree, James
作者单位:Queensland University of Technology (QUT); University of Western Australia; Australian Institute of Marine Science
摘要:Optimal sampling strategies are critical for surveys of deeper coral reef and shoal systems due to the significant cost of accessing and field sampling these remote and poorly understood ecosystems. Additionally, wellestablished standard diver-based sampling techniques used in shallow reef systems are not feasible at greater depths. In this study, we develop a Bayesian design strategy to optimise sampling for a shoal deep reef system using three years of pilot data. Bayesian designs are typica...
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作者:Osephs, Athaniel; Eng, Ida; Rawford, Orrest w.
作者单位:North Carolina State University; Microsoft; Yale University
摘要:Most businesses impose a supervisory hierarchy on employees to faemployee communication patterns within workplaces tend to emerge more naturally as a consequence of both supervisory relationships and the needs of the organization. What then is the relationship between a formal organizational structure and the emergent communications between its employees? Understanding the nature of this relationship is critical for the successful management of an organization. While scholars of organizational...
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作者:Dai, Wei; Zhang, Heping
作者单位:Yale University
摘要:Functional connectivity of the brain, characterized by interconnected neural circuits across functional networks, is a cutting-edge feature in neuroimaging. It has the potential to mediate the effect of genetic variants on behavioral outcomes or diseases. Existing mediation analysis methods can evaluate the impact of genetics and brain structure/function on cognitive behavior or disorders, but they tend to be limited to single genetic variants or univariate mediators, without considering cumul...
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作者:Pavone, Federico; Legramanti, Sirio; Durante, Daniele
作者单位:Bocconi University; University of Bergamo
摘要:Although the analysis of human mortality has a well-established history, the attempt to accurately forecast future death-rate patterns for different age groups and time horizons still attracts active research. Such a predictive focus has motivated an increasing shift toward more flexible representations of age-specific period mortality trajectories at the cost of reduced interpretability. Although this perspective has led to successful predictive strategies, the inclusion of interpretable stru...
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作者:Shim, Heejung; Xing, Zhengrong; Pantaleo, Ester; Luca, Francesca; Pique-Regi, Roger; Stephens, Matthew
作者单位:University of Melbourne; University of Chicago; Wayne State University; Wayne State University; Wayne State University; University of Chicago
摘要:Estimating and testing for differences in molecular phenotypes (e.g., gene expression, chromatin accessibility, transcription factor binding) across conditions is an important part of understanding the molecular basis of gene regulation. These phenotypes are commonly measured using high-throughput high-resolution count data that reflect how the phenotypes vary along the genome. Multiple methods have been proposed to help exploit these highresolution measurements for differential expression ana...
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作者:Zhang, Zitong; Chen, Shizhe
作者单位:University of California System; University of California Davis
摘要:Neural circuits are of paramount importance in the nervous system, as they are the essential infrastructure in guiding animal behavior. However, modeling the development of neural circuits poses significant challenges due to inherent properties of the development process. First, the neural circuit development process is transient, where the course of development can only be observed once. Second, despite potentially sharing similar underlying mechanisms for development, neural circuits from di...
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作者:Li, Zehang Richard; Wu, Zhenke; Chen, Irena; Clark, Samuel J.
作者单位:University of California System; University of California Santa Cruz; University of Michigan System; University of Michigan; Max Planck Society; University System of Ohio; Ohio State University
摘要:Understanding cause-specific mortality rates is crucial for monitoring population health and designing public health interventions. Worldwide, twothirds of deaths do not have a cause assigned. Verbal autopsy (VA) is a wellestablished tool to collect information describing deaths outside of hospitals by conducting surveys to caregivers of a deceased person. It is routinely implemented in many low- and middle-income countries. Statistical algorithms to assign cause of death using VAs are typical...
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作者:Ma, Ting Fung; Cai, Yizhou; Shi, Peng; Zhu, Jun
作者单位:University of South Carolina System; University of South Carolina Columbia; University of Wisconsin System; University of Wisconsin Madison; University of Wisconsin System; University of Wisconsin Madison
摘要:Extreme weather events associated with climate change have caused significant damages. In particular, hail storms damage millions of properties in the U.S. and result in billion-dollar insured losses each year in the recent decade. To facilitate the insurance claims management operations in insurance companies, we construct a hierarchical dependence model, which accommodates the complex dependence within and between the outcomes of interests including the propensity of filing a claim, time to ...