Scaling limit of a long-range random walk in time-correlated random environment

This paper concerns a long-range random walk in random environment in dimension $1+1$, where the environmental disorder is independent in space but has long-range correlations in time. We prove that two types of rescaled partition functions converge weakly to the Stratonovich solution and the It\^o-Skorohod solution respectively of a fractional stochastic heat equation with multiplicative Gaussian noise which is white in space and colored in time.Comment: 37 pages. In this version we added the Ito-Skorohod cas

The Chinese Poetess in an Australian Setting: Cultural Translation in Brian Castro’s The Garden Book

The Garden Book, a novel set in the Dandenongs between the 1920s and 1940s, tells of a love affair between Darcy Damon, Swan Hay and Jasper Zenlin, but in a deeper sense, it is perhaps a novel that shows a deeper penetration into the cultural history of Australia. The novel begins with Norman Shih, a rare book librarian, who tries to piece together the lives of the female protagonist, Swan Hay, through memory and recollection, but it is a difficult task. The very connection with Chinese at the beginning, and the subsequent association of Swan Hay with He Shuangqing, an 18th Century Chinese poetess, links Brian Castro with cultural transplantation and translation. This paper is an attempt to use Deleuze and Guattari’s theory of reterritorialization and Homi Bhabha’s theory of cultural translation to discuss Brian Castro’s translation efforts to call into attention the in-between status of diasporic Chinese in Australian culture. Through the appropriation of He Shuangqing, the forgotten poetess in China, Brian Castro presents a picture of the marginalized status of the ethnic Chinese in white Australian culture and how their lives are maintained through translation. Jasper Zenlin’s translation of He Shuangqing not only marks the stage of her continued life, but also serves as a trope of Brian Castro’s exploration of the hybrid identity of the diasporic Chinese writers and their survival after cultural translatio

Combination resonance analysis of a multi-DOF controllable close-chain linkage mechanism system

The two-DOF controllable close-chain linkage mechanism system is investigated in this paper. Based on the air-gap field of the non-uniform airspace of motors caused by the eccentricity of rotor, the electromechanical coupling relation in the real running state of motors is analyzed. The electromechanical coupling dynamic model of the system is established by means of the finite element method. The dynamic equation constitutes the basis on which the combination resonance characteristics of the system caused by electromagnetic parameter excitations of the two motors are analyzed by the multiple scales method. The first-order stationary solution is obtained under that condition, and the stability conditions of the stationary solution are also given. Finally, an experiment is presented. Results indicate that it is feasible and beneficial to explain some unexpected strong vibration phenomena in the high-speed operation of such multi-DOF controllable close-chain linkage mechanism using nonlinear combination resonance theories

The expression of RIPK3 is associated with cell turnover of gastric mucosa in the mouse and human stomach

publishedVersio

Cytokine-mediated crosstalk between cancer stem cells and their inflammatory niche from the colorectal precancerous adenoma stage to the cancerous stage: Mechanisms and clinical implications

publishedVersio

Infection-free rates and Sequelae predict factors in bone transportation for infected tibia: a systematic review and meta-analysis

Abstract Background Tibia infected nonunion and chronic osteomyelitis are challenging clinical presentations. Bone transportation with external or hybrid fixators (combined external and internal fixators) is versatile to solve these problems. However, the infection-free rates of these fixator systems are unknown. Additionally, the prognosis factors for results of bone transportation are obscure. Therefore, this systematic review and meta-analysis was conducted to answer these questions. Methods A systematic review was conducted following the PRISMA-IPD guidelines. Relevant publications from January 1995 to September 2018 were compiled from Medline, Embase, and Cochrane. The infection-free rates of external and hybrid fixators were achieved by synthesizing aggregate data and individual participant data (IPD). IPD was analyzed by two-stage method with logistical regression to identify prognosis factors of sequelae. Results Twenty-two studies with 518 patients were identified, including 11 studies with 167 patients’ IPD, and 11 studies with 351 patients’ aggregate data. The infection-free rate of hybrid fixator group was 86% (95%CI: 79–94%), lower than that of external fixator which was 97% (95%CI: 95–98%,). The number of previous surgeries was found predict factor of bone union sequelae (p = 0.04) and function sequelae(p < 0.01); The external fixation time was found predict factor of function sequelae (p = 0.015). Conclusions Hybrid fixators may be associated with a greater risk of infection-recurrence in the treatment of tibia infected nonunion and chronic osteomyelitis. The number of previous surgeries and external fixation time can be used as predictors of outcomes. Proper fixators and meticulously designed surgery are important to avoid unexpected operations and shorten external fixation time.https://deepblue.lib.umich.edu/bitstream/2027.42/146740/1/12891_2018_Article_2363.pd

A Game theory approach for the operators&apos; behavior analysis in the urban passenger transportation market

Abstract. Urban passenger transportation market in China now is composed by three public transportation modes, including the conventional bus, taxi and subway (or light rail). There are both cooperation and competitive behavior among these three different transportation modes. This paper aims to describe how these three operators make their operational decisions in the competitive environment. A bi-level programming operational model is proposed to model urban passenger transportation operators&apos; decision behavior, which is based on the game theory to describe the behavioral conjectures among the management authority, different operators and passengers. The upper-level model described the management authority&apos; regulation on the fares of each mode, which aimed to achieve the comprehensive social objectives, indexed by the travel time cost, air pollution cost and energy consumption cost. The lower-level model described the three operators&apos; aiming to maximize the profit by determining the service frequency, which can reflect the operators&apos; cooperation and completive behavior under the urban passenger transportation economic policy. A logit model is proposed to analyze passengers&apos; mode choice behavior with the maximization of their travel utilities, which considers the total travel time, waiting time and total travel fare of each mode. This research will provide more evidence for urban passenger transportation development and contribute to urban passenger transportation economic policy establishment and implementation

Contrastive Counterfactual Learning for Causality-aware Interpretable Recommender Systems

There has been a recent surge in the study of generating recommendations within the framework of causal inference, with the recommendation being treated as a treatment. This approach enhances our understanding of how recommendations influence user behaviour and allows for identification of the factors that contribute to this impact. Many researchers in the field of causal inference for recommender systems have focused on using propensity scores, which can reduce bias but may also introduce additional variance. Other studies have proposed the use of unbiased data from randomized controlled trials, though this approach requires certain assumptions that may be difficult to satisfy in practice. In this paper, we first explore the causality-aware interpretation of recommendations and show that the underlying exposure mechanism can bias the maximum likelihood estimation (MLE) of observational feedback. Given that confounders may be inaccessible for measurement, we propose using contrastive SSL to reduce exposure bias, specifically through the use of inverse propensity scores and the expansion of the positive sample set. Based on theoretical findings, we introduce a new contrastive counterfactual learning method (CCL) that integrates three novel positive sampling strategies based on estimated exposure probability or random counterfactual samples. Through extensive experiments on two real-world datasets, we demonstrate that our CCL outperforms the state-of-the-art methods.Comment: conferenc

Combination resonance analysis of a multi-DOF controllable close-chain linkage mechanism system

The two-DOF controllable close-chain linkage mechanism system is investigated in this paper. Based on the air-gap field of the non-uniform airspace of motors caused by the eccentricity of rotor, the electromechanical coupling relation in the real running state of motors is analyzed. The electromechanical coupling dynamic model of the system is established by means of the finite element method. The dynamic equation constitutes the basis on which the combination resonance characteristics of the system caused by electromagnetic parameter excitations of the two motors are analyzed by the multiple scales method. The first-order stationary solution is obtained under that condition, and the stability conditions of the stationary solution are also given. Finally, an experiment is presented. Results indicate that it is feasible and beneficial to explain some unexpected strong vibration phenomena in the high-speed operation of such multi-DOF controllable close-chain linkage mechanism using nonlinear combination resonance theories