Li Yu

Changes in health-related quality of life and clinical implications in Chinese patients with chronic cough (2009)

Ma, Wei, Yu, Li, Wang, Yu, Li, Xin, LÜ, Hanjing, Qiu, Zhongmin

Abstract Background Chronic cough has negative effects on quality of life. However, the changes in health-related quality of life and clinical implications remain unclear in Chinese patients with...

A property that characterizes Euler characteristic among invariants of combinatorial manifolds (2009)

Yu, Li

If a real value invariant of compact combinatorial manifolds (with or without boundary) depends only on the number of simplices in each dimension on the manifold, then the invariant is completely...

Localizable invariants of closed combinatorial manifolds and Euler characteristic (2009)

Yu, Li

If a real value invariant of closed combinatorial manifolds admits a local formula that depends only on the f-vector of the link of each vertex, then the invariant must be proportional to the Euler...

Optimal quantum repeaters with doubly entangled state purification (2009)

Wang, Chuan, Jiao, Rong-Zhen, Ma, Hai-Qiang, Zhang, Yong, Yu, Li

Recently, Briegel et al. present a quantum repeaters protocol using nest entanglement purification for long distance quantum communication(Physical Review Letters \textbf{81},5932). In this paper we...

FHL2 interacts with and acts as a functional repressor of Id2 in human neuroblastoma cells (2009)

Han, Weidong, Wu, Zhiqiang, Zhao, Yali, Meng, Yuanguang, Si, Yiling, Yang, Jie, ...

Inhibitor of differentiation 2 (Id2) is a natural inhibitor of the basic helix–loop–helix transcription factors. Although Id2 is well known to prevent differentiation and promote cell-cycle...

Computational identification of hepatitis C virus associated microRNA-mRNA regulatory modules in human livers (2009)

Peng Xinxia, Li Yu, Walters Kathie-Anne, Rosenzweig Elizabeth, Lederer Sharon, Aicher Lauri, ...

Abstract Background Hepatitis C virus (HCV) is a major cause of chronic liver disease by infecting over 170 million people worldwide. Recent studies have shown that microRNAs (miRNAs), a class of...

Ethyl pyruvate reduces mortality in an endotoxin-induced severe acute lung injury mouse model (2009)

Shang Guan-Hong, Lin Dian-Jie, Xiao Wei, Jia Chong-Qi, Li Yu, Wang Ai-Hua, ...

Abstract Background Ethyl pyruvate (EP) was recently identified as an experimental therapeutic agent in a wide variety of model systems for inflammation-mediated tissue and cellular injury. Objective...

WSSV ie1 promoter is more efficient than CMV promoter to express H5 hemagglutinin from influenza virus in baculovirus as a chicken vaccine (2008)

He, Fang, Ho, YuenFern, Yu, Li, Kwang, Jimmy

Abstract Background The worldwide outbreak of influenza A (H5N1) viruses among poultry species and humans highlighted the need to develop efficacious and safe vaccines based on efficient and...

Evidence for two separate energy gaps in underdoped high-temperature cuprate superconductors from broadband infrared ellipsometry (2008)

Yu, Li, Munzar, D., Boris, A. V., Yordanov, P., Chaloupka, J., Wolf, Th., ...

We present broadband infrared ellipsometry measurements of the c-axis conductivity of underdoped RBa₂Cu₃O₇₋δ (R=Y, Nd, and La) single crystals. Our data show that separate energy scales are...

Evidence for two separate energy gaps in underdoped high-temperature cuprate superconductors from broadband infrared ellipsometry (2008)

Yu, Li, Munzar, D., Boris, A. V., Yordanov, P., Chaloupka, J., Wolf, Th., ...

We present broadband infrared ellipsometry measurements of the c-axis conductivity of underdoped RBa₂Cu₃O₇₋δ (R=Y, Nd, and La) single crystals. Our data show that separate energy scales are...

On 3-manifolds with locally-standard (Z_2)^3-actions (2008)

Lü, Zhi, Yu, Li

As a generalization of Davis-Januszkiewicz theory, there is an essential link between locally standard $(\Z_2)^n$-actions (or $T^n$-actions) actions and nice manifolds with corners, so that a class...

New Insights into the Evolution of Intronic Sequences of the β-fibrinogen Gene and Their Application in Reconstructing Mustelid Phylogeny (2008)

Li Yu, Jiang Liu, Peng-tao Luan, Hang Lee, Muyeong Lee, Mi-sook Min, ...

Mustelidae is the largest and most diverse family in the order Carnivora. The phylogenetic relationships among the subfamilies have especially long been a focus of study. Herein we are among the...

Optical study of the free-carrier response of LaTiO₃/SrTiO₃ superlattices (2008)

Seo, S. S. A., Choi, W. S., Lee, H. N., Yu, Li, Kim, Kyungwan W., Bernhard, Christian, ...

We used infrared spectroscopic ellipsometry to investigate the electronic properties of LaTiO₃/SrTiO₃ superlattices (SLs). Our results indicated that, independent of the SL periodicity and...

Optical study of the free-carrier response of LaTiO₃/SrTiO₃ superlattices (2008)

Seo, S. S. A., Choi, W. S., Lee, H. N., Yu, Li, Kim, Kyungwan W., Bernhard, Christian, ...

We used infrared spectroscopic ellipsometry to investigate the electronic properties of LaTiO₃/SrTiO₃ superlattices (SLs). Our results indicated that, independent of the SL periodicity and...

Guidelines for the use and interpretation of assays for monitoring autophagy in higher eukaryotes (2008)

Spanel-Borowski, Katharina, Smith, Mark A., Simone, Cristiano, Simonsen, Anne, Simon, Hans-Uwe, ...

Research in autophagy continues to accelerate, and as a result many new scientists are entering the field. Accordingly, it is important to establish a standard set of criteria for monitoring...

Video Surveillance using a Multi-Camera Tracking and Fusion System (2008)

Zhang, Zhong, Scanlon, Andrew, Yin, Weihong, Yu, Li, Venetianer, Péter L.

Usage of intelligent video surveillance (IVS) systems is spreading rapidly. These systems are being utilized in a wide range of applications. In most cases, even in multi-camera installations, the...

Video Surveillance using a Multi-Camera Tracking and Fusion System (2008)

Zhang, Zhong, Scanlon, Andrew, Yin, Weihong, Yu, Li, Venetianer, Péter L.

Usage of intelligent video surveillance (IVS) systems is spreading rapidly. These systems are being utilized in a wide range of applications. In most cases, even in multi-camera installations, the...

Pep-3D-Search: a method for B-cell epitope prediction based on mimotope analysis (2008)

Huang Yan, Bao Yong, Guo Shu, Wang Yan, Zhou Chun, Li Yu

Abstract Background The prediction of conformational B-cell epitopes is one of the most important goals in immunoinformatics. The solution to this problem, even if approximate, would help in...

Quantum Error Correcting Codes Using Qudit Graph States (2007)

Looi, Shiang Yong, Yu, Li, Gheorghiu, Vlad, Griffiths, Robert B.

Graph states are generalized from qubits to collections of $n$ qudits of arbitrary dimension $D$, and simple graphical methods are used to construct both additive and nonadditive quantum error...

Understanding Images of Graphical User Interfaces: A (2007)

Li Yu

new approach to activity recognition for visual surveillance

Unifying Data, Behaviours, and Messages in Object-Oriented Databases (2007)

Sylvia L. Osborn, Li Yu

This paper introduces the Knowhow-Bearing Objects (KBO) model. KBO objects have both a data and a behavioural side. This allows us to treat behaviours as objects, so that a database approach can be...

Robust H Control of Discrete-Time Linear Systems with Delayed State and Frobenius Norm-Bounded Uncertainties (2007)

Li Yu, Furong Gao

ABSTRACT: The robust H control problem is considered in this paper for discrete-time linear systems with delayed state and subject to Frobenius norm-bounded parameter uncertainties, and attention is...

A Paradigm for virus-host coevolution: sequential counter-adaptations between endogenous and exogenous retroviruses (2007)

Arnaud, Frederick, Caporale, Marco, Varela, Mariana, Biek, Roman, Chessa, Bernardo, Alberti, Alberto, ...

Endogenous retroviruses (ERVs) are remnants of ancient retroviral infections of the host germline transmitted vertically from generation to generation. It is hypothesized that some ERVs are used by...

A Paradigm for Virus–Host Coevolution: Sequential Counter-Adaptations between Endogenous and Exogenous Retroviruses (2007)

Frederick Arnaud, Marco Caporale, Mariana Varela, Roman Biek, Bernardo Chessa, Alberto Alberti, ...

Endogenous retroviruses (ERVs) are remnants of ancient retroviral infections of the host germline transmitted vertically from generation to generation. It is hypothesized that some ERVs are used by...

Restriction landmark genome scanning identifies culture-induced DNA methylation instability in the human embryonic stem cell epigenome (2007)

Allegrucci, Cinzia, Wu, Yue-Zhong, Thurston, Alexandra, Denning, Chris N., Priddle, Helen, Mummery, Christine L., ...

Widespread provision of human embryonic stem cells (hESCs) for therapeutic use, drug screening and disease modelling will require cell lines sustainable over long periods in culture. Since the...

Protective effects of glycyrrhizin on adriamycin nephropathy in rats (2006)

Li-Na WANG, Li YU

Objective: To observe the effects of glycyrrhizin on laminin (LN) expression in kidney tissue and excretory quantity of urine protein of rats with adriamycin nephropathy, and to explore the...

The Unusual Adaptive Expansion of Pancreatic Ribonuclease Gene in Carnivora (2006)

Yu, Li, Zhang, Ya-ping

Pancreatic ribonuclease (RNASE1) is a digestive enzyme that has been recognized to be one of the most attractive model systems for molecular evolutionary studies. The contribution of RNASE1 gene...

The Unusual Adaptive Expansion of Pancreatic Ribonuclease Gene in Carnivora (2006)

Yu, Li, Zhang, Ya-ping

Pancreatic ribonuclease (RNASE1) is a digestive enzyme that has been recognized to be one of the most attractive model systems for molecular evolutionary studies. The contribution of RNASE1 gene...

Robust output feedback controller design with covariance and disc closed-loop pole constraints (2005)

Yu, Li.

This paper is concerned with the problem of robust output feedback controller design for a class of linear discrete-time systems with norm-bounded uncertainty. The objective is to design a controller...

Robust output feedback controller design with covariance and disc closed-loop pole constraints (2005)

Yu, Li., Han, Qing-Long.

This paper is concerned with the problem of robust output feedback controller design for a class of linear discrete-time systems with norm-bounded uncertainty. The objective is to design a controller...

Computer-aided control system design / (2004)

Yu, Li.

Thesis (M. Sc. (Comp. Contr. & Autom.))--Nanyang Technological University, School of Electrical and Electronic Engineering, 2004.

Robust stability analysis of linear systems with time-varying delay and nonlinear perturbations (2004)

Han, Qinglong., Yu, Li., Yue, Dong., Ma, X., Yu, Xing Huo

The robust stability of uncertain linear systems with a single time-varying delay is investigated by employing a descriptor model transformation and a decomposition technique of the delay term...

On robust stability of linear neutral systems with nonlinear parameter perturbations (2004)

Han, Qing-Long., Yu, Li.

The robust stability of uncertain linear neutral systems with time-varying discrete and neutral delays is investigated. The uncertainties under consideration are nonlinear time-varying parameter...

Optimal guaranteed cost control of singular systems with delayed state and parameter uncertainties (2004)

Yu, Li., Xu, Jian-Ming., Han, Qing-Long.

The guaranteed cost control problem via memoryless state feedback controllers is studied in this paper for a class of linear singular systems with delayed state and norm-bounded time-varying...

Robust stability of linear neutral systems with nonlinear parameter perturbations (2004)

Han, Qing-Long., Yu, Li.

The robust stability of uncertain linear neutral systems with time-varying discrete and neutral delays is investigated. The uncertainties under consideration are nonlinear time-varying parameter...

A history of reading in late Imperial China, 1000-1800 (2003)

Yu, Li

This dissertation is a historical ethnographic study on the act of reading in late imperial China. Focusing on the practice and representation of reading, I present a mosaic of how reading was...

Delay-dependent conditions for robust absolute stability of uncertain time-delay systems (2003)

Yu, Li., Yu, Shiming., Gao, Jinfeng.

This paper is concerned witb the robust absolute stability analysis problem for a class of uncertain time-delay systems with nonlinearities satisfying a given sector condition. Based on the Lyapuoov...

Delay-dependent conditions for robust absolute stability of uncertain time-delay systems (2003)

Yu, Li., Yu, Shiming., Gao, Jinfeng., Han, Qing-Long.

This paper is concerned witb the robust absolute stability analysis problem for a class of uncertain time-delay systems with nonlinearities satisfying a given sector condition. Based on the Lyapuoov...

The Eternal Storyteller: Oral Literature in Modern China (review) (2001)

Li Yu

Journal of American Folklore - Volume 114, Number 451, Winter 2001

Local Search Based on a Physical Model for Solving a Circle Packing Problem (2001)

Huang Wenqi Li, Li Yu, Xu Ruchu

this paper, we propose to solve this problem by a local search algorithm based on a physical model with a strategy to escape from local minimum inspired from a social behavior. The work is the...

Condition monitoring and fault diagnosis of fluid power system / (2000)

Yu, Li.

Thesis (M.Eng.)--Nanyang Technological University, School of Mechanical and Production Engineering, 2000.

Sorption of gases and vapors on coals / (1997)

Yu, Li.

Thesis (Ph. D.)--University of Cincinnati, 1997.

Toward a pedagogical model of learning to read Chinese as a foreign language (1997)

Yu, Li

This study seeks to construct a pedagogical model of learning to read in Chinese as a foreign language. Reading is defined as a goal-oriented social behavior in a given culture of viewing and...

Toward a pedagogical model of learning to read Chinese as a foreign language (1997)

Yu, Li

This study seeks to construct a pedagogical model of learning to read in Chinese as a foreign language. Reading is defined as a goal-oriented social behavior in a given culture of viewing and...

DAVI84]R.Davis "Diagnostic reasoning based on structure and behavior (1994)

Michael Eckmann, Li Yu, Terrance E. Boult, G. Drew Kessler

Search and rescue operations can greatly benefit from the training provided by familiarity with the situation area and from practice navigating the area. Often it is difficult, dangerous and...

DAVI84]R.Davis "Diagnostic reasoning based on structure and behavior (1994)

Michael Eckmann, Li Yu, Terrance E. Boult, G. Drew Kessler

Search and rescue operations can greatly benefit from the training provided by familiarity with the situation area and from practice navigating the area. Often it is difficult, dangerous and...

Collaborative Filtering Recommendation Based on Preference Order (1970)

Li Yu, Xiaoping Yang

Collaborative filtering is an important personalized method in recommender systems in E-commerce. It is infeasible that traditional collaborative filtering is based on absolute rating for items since...

An Estimating Method for IT Project Expected Duration Oriented to GERT (1970)

Li Yu, Meiyun Zuo

Reworking in developing software exists widely in IT project management. But the current estimating methods on project duration cannot deal well with this problem. In this paper, some key concepts,...

A history of reading in late Imperial China, 1000-1800

Yu, Li

This dissertation is a historical ethnographic study on the act of reading in late imperial China. Focusing on the practice and representation of reading, I present a mosaic of how reading was...

HUMAN CAPITAL, COMPLEX TECHNOLOGIES, FIRM SIZE AND WAGES: A TEST OF THE O-RING PRODUCTION HYPOTHESES

Yu, Li, Orazem, Peter

Kremer’s O-Ring production theory (QJE, 1993) describes a process in which a single mistake in any one of several tasks in firm’s production process can lead to catastrophic failure of the...

Human Capital, Complex Technologies, Firm size and Wages: A Test of the O-Ring Production Hypotheses

Yu, Li, Orazem, Peter

Kremer’s O-Ring production theory (QJE, 1993) describes a process in which a single mistake in any one of several tasks in firm’s production process can lead to catastrophic failure of the...

Testing for Complementarity and Substitutability among Multiple Technologies: The Case of U.S. Hog Farms

Yu, Li, Hurley, Terrance, Kliebenstein, James, Orazem, Peter

We propose a strategy to identify the complementarity or substitutability among technology bundles. Under the assumption that alternative technologies are independent, we develop a hypothetical...

A high-resolution anatomical rat atlas

Bai, Xueling, Yu, Li, Liu, Qian, Zhang, Jie, Li, Anan, Han, Dao, ...

This paper reports the availability of a high-resolution atlas of the adult rat. The atlas is composed of 9475 cryosectional images captured in 4600 × 2580 × 24-bit TIFF format, constructed using...

Firm Size, Technical Change and Wages: Evidence from the Pork Sector from 1990-2005

Yu, LI, Hurley, Terry M., Kliebenstein, James B., Orazem, Peter F.

A long-standing puzzle in labor economics has been the positive relationship between wages and firm size. Even after controlling for worker’s observed characteristics such as education, work...

Testing for Complementarity and Substitutability among Multiple Technologies: The Case of U.S. Hog Farms

Yu, LI, Hurley, Terrance M., Kliebenstein, James, Orazem, Peter F.

The hypothetical distribution of multiple technology adoptions under the assumption that technologies are mutually independent is compared against the actual observed distribution of technology...

Misunderstandings and Explanations of "Excessive Competition": "Incremental" Thought on Anti-Monopoly Legislation in China

Li Yu, Xuliang Wu

This article attempts to analyze the ambiguities of the concept of "excessive competition" from the perspectives of structure, behavior, performance, and policy. In view of the various...

Learning process of Chinese urban planning: the case of Xiamen’s City Comprehensive Plan

Li Yu

Devolution, globalisation, and marketisation have made Chinese municipalities key players in urban development and construction, policy makers for increasing competitiveness, and stakeholders in the...

Firm Entry and Exit in Iowa, 1992 - 2004

Yu, Li, Jolly, Robert W., Orazem, Peter

This paper uses the pattern of firm entry and exit to develop a classification system for industries. The classifications include urban-rural bias; long-term growth; and firm survival patterns. The...

Measuring the research performance of Chinese higher education institutions using data envelopment analysis

JOHNES, Jill, YU, Li

This study uses data envelopment analysis (DEA) to examine the relative efficiency in the production of research of 109 Chinese regular universities in 2003 and 2004. Output variables measure the...

Firm Size, Technical Change and Wages: Evidence from the Pork Sector from 1990-2005

Yu, LI, Hurley, Terry M., Kliebenstein, James B., Orazem, Peter F.

A long-standing puzzle in labor economics has been the positive relationship between wages and firm size. Even after controlling for workerÂ’s observed characteristics such as education, work...

Testing for Complementarity and Substitutability among Multiple Technologies: The Case of U.S. Hog Farms

Yu, LI, Hurley, Terrance M., Kliebenstein, James, Orazem, Peter F.

The hypothetical distribution of multiple technology adoptions under the assumption that technologies are mutually independent is compared against the actual observed distribution of technology...

After They Graduate: An Overview of the Iowa State University Alumni Survey

Jolly, Robert W., Yu, Li, Orazem, Peter

This report provides a descriptive overview of the Iowa State University Alumni Survey. In late 2007, 25,000 Iowa State University alumni who received bachelor's degree between 1982 and 2006 were...

Intraperitoneal administration of gonadotropin-releasing hormone-PE40 induces castration in male rats

Yu, Li, Zhang, Zhong-Fang, Jing, Chun-Xia, Wu, Feng-Lin

AIM: To evaluate the long-term effects of gonadotropin-releasing hormone (GnRH)-based vaccine on levels of GnRH antibody and testosterone, and vaccine-induced immunocastration on sexual behavior of...

STOPPING START-UPS: HOW THE BUSINESS CYCLE AFFECTS ENTREPRENEURSHIP

Yu, Li, Orazem, Peter, Jolly, Robert W.

This study analyzes whether economic conditions at the time of labor market entry affect entrepreneurship, using difference in business start-ups between cohorts of college students graduating in...

WHY DO RURAL FIRMS LIVE LONGER?

Yu, Li, Orazem, Peter, Jolly, Robert W.

Rural firms have a higher survival rate than urban firms. Over the first 13 years after firm entry, the hazard rate for firm exits is persistently higher for urban firms. While differences in firm...

Simvastatin Restores Down-Regulated GATA-6 Expression in Pulmonary Hypertensive Rats

Liu, Bin, Wang, Xiao-qin, Yu, Li, Zhou, Tong-fu, Wang, Xian-min, Liu, Han-min

Vascular smooth muscle cell proliferation has been known to be predominant in vascular remodeling of pulmonary hypertensive. The GATA family proteins, a group of zinc finger transcription factors,...

FHL2 interacts with and acts as a functional repressor of Id2 in human neuroblastoma cells

Han, Weidong, Wu, Zhiqiang, Zhao, Yali, Meng, Yuanguang, Si, Yiling, Yang, Jie, ...

Inhibitor of differentiation 2 (Id2) is a natural inhibitor of the basic helix–loop–helix transcription factors. Although Id2 is well known to prevent differentiation and promote cell-cycle...

How ya gonna keep ‘em down on the farm: Which Land Grant graduates live in rural areas?

Artz, Georgeanne M., Yu, Li

Out-migration of college-educated youth from rural areas of the United States is a persistent trend and a salient concern for rural development practitioners. Using a unique dataset compiled from a...

Migration and Rural Entrepreneurship

Yu, Li, Artz, Georgeanne M.

This paper investigates entrepreneurship of migrants and their location choice in attempt to draw connections between migration and economic development, especially the role of business formation in...

DNA hypermethylation and epigenetic silencing of the tumor suppressor gene, SLC5A8, in acute myeloid leukemia with the MLL partial tandem duplication

Whitman, Susan P., Hackanson, Björn, Liyanarachchi, Sandya, Liu, Shujun, Rush, Laura J., Maharry, Kati, ...

Posttranslationally modified histones and DNA hypermethylation frequently interplay to deregulate gene expression in cancer. We report that acute myeloid leukemia (AML) with an aberrant histone...

FIRM ENTRY, FIRM EXIT, AND URBAN-BIASED GROWTH

Yu, Li, Jolly, Robert W., Orazem, Peter

We introduce a taxonomy that classifies industries using three criteria: net growth in the number of firms; the interrelationship between firm entry and firm exit; and the degree of urban-bias in...

Inhibition of hepatitis B virus gene expression and replication by artificial microRNA

Gao, Yu-Feng, Yu, Li, Wei, Wei, Li, Jia-Bin, Luo, Qing-Li, Shen, Ji-Long

AIM: To investigate the inhibitory effects of hepatitis B virus (HBV) replication and expression by transfecting artificial microRNA (amiRNA) into HepG2.2.15 cells.