Feng Xu

Publication List Details

Period

1987 - 2009

Number

129

Co-Authors

In vivo99mTc-HYNIC-annexin V imaging of early tumor apoptosis in mice after single dose irradiation (2009)

Guo, Ming-fang, Zhao, Yaqing, Tian, Rong, Li, Lin, Guo, Leiming, Xu, Feng, ...

Abstract Background Apoptosis is a major mode of hematological tumor death after radiation. Early detection of apoptosis may be beneficial for cancer adaptive treatment. 99m Tc-HYNIC-annexinV has...

Tris(2,2′-bipyridyl-κ2N,N′)copper(II) sulfate 7.5-hydrate (2009)

Feng Xu, Wei You, Wei Huang

The title compound, [Cu(C10H8N2)3]SO4·7.5H2O, is a six-coordinate copper(II) complex with a slightly elongated octahedral coordination geometry. The pyridyl rings of the three bipyridyl ligands...

Bis(μ-2,2′-bi-1H-imidazole-1,1′-diacetato)bis[diaquacobalt(II)] hexahydrate (2009)

Tingting Zhang, Tao Zhang, Feng Xu, Hongze Liang

The dinuclear title compound, [Co2(C10H8N4O4)2(H2O)4]·6H2O, lies about an inversion centre. Each CoII atom is six-coordinated by two water molecules, two carboxylate O atoms and two N atoms of...

Longitudinal progression of Alzheimer's-like patterns of atrophy in normal older adults: the SPARE-AD index (2009)

Davatzikos, Christos, Xu, Feng, An, Yang, Fan, Yong, Resnick, Susan M.

A challenge in developing informative neuroimaging biomarkers for early diagnosis of Alzheimer's disease is the need to identify biomarkers that are evident before the onset of clinical symptoms, and...

Bayesian mortgage default models (2009)

Xu, Feng

Bayesian mortgage default models

Bayesian mortgage default models (2009)

Xu, Feng

Bayesian mortgage default models

Microwave-Assisted Solvent-Free Acetylation of Cellulose with Acetic Anhydride in the Presence of Iodine as a Catalyst (2009)

Jing Li, Li-Ping Zhang, Feng Peng, Jing Bian, Tong-Qi Yuan, Feng Xu, ...

In this work an optimization of the solvent-free acetylation of cellulose with acetic anhydride under microwave heating with iodine as a catalyst was performed. The optimized parameters included the...

Fitting the Galaxy Rotation Curves: Strings versus NFW profile (2008)

Cheung, Yeuk-Kwan E., Xu, Feng

Remarkable fit of galaxy rotation curves is achieved using a simple model from string theory. The rotation curves of the same group of galaxies are also fit using dark matter model with the...

Molecular cloning, characterization and expression of phenylalanine ammonia-lyase gene from Ginkgo biloba   (2008)

Xu, Feng, Cai, Rong, Cheng, Shuiyuan, Du, Hewei, Wang, Yan, Cheng, Shuhan

A full-length cDNA and genomic DNA of phenylalanine ammonia-lyase gene, which catalyzes the first step in the flavonoid biosynthetic pathway, were isolated from Ginkgo biloba   for the first time...

Feature Selection for Image Categorization (2008)

Feng Xu, Yu-jin Zhang

Abstract. Image classification could be treated as an effective solution to enable keyword-based semantic image retrieval, while feature selection is a key issue in categorization. In this paper, we...

Conventionally-fractionated image-guided intensity modulated radiotherapy (IG-IMRT): a safe and effective treatment for cancer spinal metastasis (2008)

Gong, Youling, Wang, Jin, Bai, Sen, Jiang, Xiaoqin, Xu, Feng

Abstract Background Treatments for cancer spinal metastasis were always palliative. This study was conducted to investigate the safety and effectiveness of IG-IMRT for these patients. Methods 10...

Distribution of the Ibex (Capra ibex   ) in Tomur National Nature Reserve of Xinjiang, China (2008)

XU, Feng, YANG, Gui-bo, MA, Ming, WU, Yi-qun, Chundawat, Raghunandan Singh

Ibex (Capra ibex   ), a first grade protected animal, has not been well studied in China. Surveys were conducted to investigate the distribution of the ibex in the Tomur National Nature Reserve...

Nontypeable Haemophilus influenzaeinduces COX-2 and PGE2 expression in lung epithelial cells via activation of p38 MAPK and NF-kappa B (2008)

Xu, Feng, Xu, Zhihao, Zhang, Rong, Wu, Zuqun, Lim, Jae-Hyang, Koga, Tomoaki, ...

Abstract Background Nontypeable Haemophilus influenzae (NTHi) is an important respiratory pathogen implicated as an infectious trigger in chronic obstructive pulmonary disease, but its molecular...

Electronic Conductivity Upturn of HOPG Contrast to Transport Properties of Polycrystal Graphite (2008)

Wang, Zhiming, Xu, Feng, Lu, Chao, Zhang, He, Xu, Qingyu, Zhu, Jinan

The transport properties of highly oriented pyrolitic graphite (HOPG) and polycrystal graphite have been studied. The electric conductivity of HOPG is several times larger than that of the...

Multiple positive solutions for nonlinear second-order m-point boundary-value problems with sign changing nonlinearities (2008)

Fuyi Xu, Zhenbo Chen, Feng Xu

In this paper, we study the nonlinear second-order m-point boundary value problem $$displaylines{ u''(t)+f(t,u)=0,quad 0leq t leq 1, cr eta u(0)-gamma u'(0)=0,quad u(1)=sum _{i=1}^{m-2}alpha_{i}...

Expression of RhoE in lung and breast cancer and its clinical significance (2008)

Yajie ZHU, Feng XU, Jitao ZHOU, Surui LIU, Juan HUANG, Deyun LUO, ...

Background and Objective Rho family is closely related with the growth , differentiation and metastasis of tumer cells. The objective of this work is to investigate the expression of RhoE in lung and...

A Simplistic Individualization Method for 6-Mercaptopurine in Acute Lymphoblastic Leukemia Children (2008)

Ganping Zhou, Zuofu Cai, Shedian Zhou, Zhichun Feng, Feng Xu

The aim of this study was set up a simplistic but low-cost method for 6-mercaptopurine (6-MP) individualization chemotherapy for Acute Lymphoblastic Leukemia (ALL) children in developing China. The...

6-Methyl-N-(2-methylphenyl)-3-phenyl-1,6-dihydro-1,2,4,5-tetrazine-1-carboxamide (2008)

Feng Xu, Weixiao Hu

In the title compound, C17H16N5O, the central tetrazine ring adopts an unsymmetrical boat conformation with the two C atoms as flagpoles. This compound can be considered as having homoaromaticity....

Novel Architecture of Feedforward Second-Order Multibit {Delta}{Sigma}AD Modulator (2008)

SAN, Hao, KONAGAYA, Hajime, XU, Feng, MOTOZAWA, Atsushi, KOBAYASHI, Haruo, ANDO, Kazumasa, ...

This paper proposes novel feedforward architecture of the second-order multibit ΔΣAD modulator with single DAC-feedback topology. The ΔΣAD modulator realizes high resolution by oversampling and...

AtPID: Arabidopsis thaliana protein interactome database an integrative platform for plant systems biology (2008)

Cui, Jian, Li, Peng, Li, Guang, Xu, Feng, Zhao, Chen, Li, Yuhua, ...

Arabidopsis thaliana Protein Interactome Database (AtPID) is an object database that integrates data from several bioinformatics prediction methods and manually collected information from the...

Structure-activity correlations in pentachlorobenzene oxidation by engineered cytochrome P450cam (2007)

Xu, Feng, Bell, Stephen G., Rao, Zihe, Wong, Luet-Lok

We had reported engineering of the heme monooxygenase cytochrome P450cam from Pseudomonas putida with the F87W/Y96F/L244A/V247L mutations for the oxidation of pentachlorobenzene (PeCB), a...

An application of Mirror extensions (2007)

Xu, Feng

In this paper we apply our previous results of mirror extensions to obtain realizations of three modular invariants constructed by A. N. Schellekens by holomorphic conformal nets with central charge...

Breeding Ecology of the Saker Falcon at the Eastern Fringe of Junggar Basin, Xinjiang (2007)

WU, Yi-qun, MA, Ming, LIU, Nai-fa, XU, Feng, TIAN, Lei-lei, MEI, Yu

The Saker Falcon(Falco cherrug   ) is listed as a second class state protected wild animal, mainly distributed in the western provinces of China. From March to July in 2005, the breeding ecology...

On representing some lattices as lattices of intermediate subfactors of finite index (2007)

Xu, Feng

We prove that the very simple lattices which consist of a largest, a smallest and $2n$ pairwise incomparable elements where $n$ is a positive integer can be realized as the lattices of intermediate...

LATTICE STRAIN AND TEXTURE EVOLUTION DURING ROOM-TEMPERATURE DEFORMATION IN ZIRCALOY-2 (2007)

Xu, FENG

Thesis (Ph.D, Mechanical and Materials Engineering) -- Queen's University, 2007-12-21 11:56:23.743

LATTICE STRAIN AND TEXTURE EVOLUTION DURING ROOM-TEMPERATURE DEFORMATION IN ZIRCALOY-2 (2007)

Xu, FENG

Thesis (Ph.D, Mechanical and Materials Engineering) -- Queen's University, 2007-12-21 11:56:23.743

LATTICE STRAIN AND TEXTURE EVOLUTION DURING ROOM-TEMPERATURE DEFORMATION IN ZIRCALOY-2 (2007)

Xu, FENG

Thesis (Ph.D, Mechanical and Materials Engineering) -- Queen's University, 2007-12-21 11:56:23.743

SU(3)-structures and Special Lagrangian Geometries (2006)

Xu, Feng

We generalize Calabi-Yau 3-folds from the special Lagrangian perspective. More precisely, we study SU(3)-structures which admit as "nice" a local special Lagrangian geometry as the flat...

Pseudoholomorphic Curves in Nearly Kahler $\mathbf{CP}^3$ (2006)

Xu, Feng

We study pseudoholomorphic curves in the nearly Kalher $\mathbf{CP}^3$. It is shown that a class of curves called null-torsion are in one to one correspondence with the integrals of a holomorphic...

Development and validation of vectors containing multiple siRNA expression cassettes for maximizing the efficiency of gene silencing (2006)

Wang Shunqing, Shi Zhenqi, Liu Wei, Jules Joel, Feng Xu

Abstract Background RNA interference (RNAi) was originally identified as a biological process in which short double-stranded RNA (dsRNA) suppress the expression of genes complimentary to the dsRNA....

Associations Between Hospital and Surgeon Procedure Volumes and Patient Outcomes After Ovarian Cancer Resection (2006)

Schrag, Deborah, Earle, Craig, Xu, Feng, Panageas, Katherine S., Yabroff, K. Robin, Bristow, Robert E., ...

Background: Strong associations between provider (i.e., hospital or surgeon) procedure volumes and patient outcomes have been demonstrated for many types of cancer operation. We performed a...

Acetylation of H2AZ Lys 14 is associated with genome-wide gene activity in yeast (2006)

Millar, Catherine B., Xu, Feng, Zhang, Kangling, Grunstein, Michael

Histone variants and their post-translational modifications help regulate chromosomal functions. Htz1 is an evolutionarily conserved H2A variant found at several promoters in the yeast Saccharomyces...

Experimental observations of the thermal flow around a square obstruction on a vertical wall in a differentially heated cavity (2006)

Xu, Feng, Patterson, John C., Lei, Chengwang

The transient thermal boundary layer flow around a square obstruction placed at the middle of the hot wall in a differentially heated cavity is visualized using a shadowgraph technique. The results...

Some computations in the cyclic permutations of completely rational nets (2005)

Xu, Feng

In this paper we calculate certain chiral quantities from the cyclic permutation orbifold of a general completely rational net. We determine the fusion of a fundamental soliton, and by suitably...

Mirror extensions of local nets (2005)

Xu, Feng

In this paper we prove a general theorem on the extensions of local nets which was inspired by recent examples of exotic extensions for Virasoro nets with central charge less than one and earlier...

Greenberger-Horne-Zeilinger correlation and Bell-type inequality seen from moving frame (2005)

You, Hao, Wang, An Min, Yang, Xiaodong, Niu, Wanqing, Ma, Xiaosan, Xu, Feng

The relativistic version of the Greenberger-Horne-Zeilinger experiment with massive particles is proposed. We point out that, in the moving frame, GHZ correlations of spins in original directions...

Abstract Evaluation and comparison of texture descriptors proposed in MPEG-7 (2005)

Feng Xu, Yu-jin Zhang

Texture description contributes as one of the most important low-level features in content-based image retrieval. In MPEG-7, homogeneous texture descriptor (HTD), texture browsing descriptor (TBD),...

Conformal Nets Associated With Lattices And Their Orbifolds (2005)

The Erwin, Schrödinger International Boltzmanngasse, Chongying Dong, Feng Xu, Chongying Dong, Feng Xu

In this paper we study representations of conformal nets associated with positive definite even lattices and their orbifolds with respect to isometries of the lattices. Using previous general results...

Conformal Nets Associated with Lattices and Their Orbifolds (2004)

Dong, Chongying, Xu, Feng

In this paper we study representations of conformal nets associated with positive definite even lattices and their orbifolds with respect to isometries of the lattices. Using previous general results...

Experimental creation of entanglement using separable state (2004)

Yang, Xiaodong, Wang, An Min, Ma, Xiaosan, Xu, Feng, You, Hao, Niu, Wanqing

We experimentally demonstrate the entanglement can be created on two distant particles using separate state. We show that two data particles can share some entanglement while one ancilla particle...

Experimental Simulation of a Pairing Hamiltonian on an NMR Quantum Computer (2004)

Yang, Xiao-Dong, Wang, An Min, Xu, Feng, Du, Jiangfeng

We have developed a concrete quantum simulation scheme and experimentally simulated a pairing model on an NMR quantum computer. The design of our experiment includes choosing an appropriate initial...

A way to solve BCS-type pairing model (2004)

Wang, An Min, Xu, Feng

We propose a way to solve BCS-type pairing model by to exactly solve its spin-analogy in the subspace. The advantages of our method are to avoid to directly deal with the approximate procedure and to...

Exact Numerical Solution of the BCS Pairing Problem (2004)

Xu, Feng, Wang, An Min, Yang, Xiaodong, You, Hao, Ma, Xiaosan

We propose a new simulation computational method to solve the reduced BCS Hamiltonian based on spin analogy and submatrix diagonalization. Then we further apply this method to solve superconducting...

Intersections of finite families of finite index subfactors (2004)

Jones, Vaughan F. R., Xu, Feng

We prove that finiteness of the index of the intersection of a finite set of finite index subalgebras in a von Neumann algebra (with small centre) is equivalent to the finite dimensionality of the...

Solitons in Affine and Permutation Orbifolds (2003)

Kac, Victor G., Longo, Roberto, Xu, Feng

We consider properties of solitons in general orbifolds in the algebraic quantum field theory framework and constructions of solitons in affine and permutation orbifolds. Under general conditions we...

Topological Sectors and a Dichotomy in Conformal Field Theory (2003)

Longo, Roberto, Xu, Feng

Let A be a local conformal net of factors on the circle with the split property. We provide a topological construction of soliton representations of the tensor product of n copies of A, that restrict...

Strong additivity and conformal nets (2003)

Xu, Feng

We show that the fixed point subnet of a strongly additive conformal net under the action of a compact group is strongly additive. Using the idea of the proof we define the notion of strong...

On the equivalence of certain coset conformal field theories (2001)

Xu, Feng

We demonstrate the equivalence of Kazama-Suzuki cosets $G(m,n,k)$ and $G(k,n,m)$ based on complex Grassmannians by proving that the corresponding conformal precosheaves are isomorphic. We also...

On a conjecture of Kac-Wakimoto (2001)

Xu, Feng

We prove a conjecture about mininmal index of certain representations of Coset Algebraic Conformal Field Theories under certain conditions as formulated previously by us. As a by-product, the...

Using Java/XML to implement web based applications / (2001)

Xu, Feng.

Thesis (M.S.)--California State University, Northridge, 2001.

Species-specific differences in the operational RNA code for aminoacylation of tRNATrp (2001)

Xu, Feng, Chen, Xianglong, Xin, Li, Chen, Li, Jin, Youxin, Wang, Debao

Identity elements play essential roles in the recognition of tRNAs by their cognate aminoacyl-tRNA synthetase. An operational RNA code relates amino acids to specific sequences and structural...

Algebraic orbifold conformal field theories (2000)

Xu, Feng

We formulate the unitary rational orbifold conformal field theories in the algebraic quantum field theory framework. Under general conditions, we show that the orbifold of a given unitary rational...

3-manifold invariants from cosets (1999)

Xu, Feng

We construct unitary modular categories for a general class of coset conformal field theories based on our previous study of these theories in the algebraic quantum field theory framework using...

On a Conjecture of Kac-Wakimoto (1999)

Xu, Feng

We prove a conjecture about mininmal index of certain representations of Coset Algebraic Conformal Field Theories under general conditions as formulated previously by us. As a by-product, the...

Algebraic Conformal Field Theories II (1999)

Xu, Feng

Some mathematical questions relating to Coset Conformal Field Theories (CFT) are considered in the framework of Algebraic Quantum Field Theory as developed previously by us. We consider the issue of...

Abstraction and reinterpretation in architecture (1999)

Xu, Feng, Xu, Feng

Design is a process of abstraction and reinterpretation of the world. Not only the physical world, but also the mental world. They are being abstracted, processed, transformed and reinterpreted in...

Algebraic Coset Conformal field theories (1998)

Xu, Feng

All unitary Rational Conformal Field Theories (RCFT) are conjectured to be related to unitary coset Conformal Field Theories, i.e., gauged Wess-Zumino-Witten (WZW) models with compact gauge groups....

On the signature of certain intersection forms (1998)

Xu, Feng

We prove a conjecture of Zuber on the signature of intersection froms associated with affine algebras of type A.

Applications of braided endomorphisms from conformal inclusions (1998)

Xu, Feng

Correction to: Applications of braided endomorphisms from conformal inclusions dx.doi.org/10.1155/S1073792898000294

Applications of braided endomorphisms from conformal inclusions (1997)

Xu, Feng

We give three applications of general theory about braided endomorphisms from conformal inclusions developed previously by us. The first is an example of subfactors associated with conformal...

A note on quivers with symmetries (1997)

Xu, Feng

We show that the bases of irreducible integrable highest weight module of a non-symmetric Kac-Moody algebra, which is associated to a quiver with a nontrivial admissible automorphism, can be...

Jones-Wassermann Subfactors for Disconnected Intervals (1997)

Xu, Feng

We show that the Jones-Wassermann subfactors for disconnected intervals, which are constructed from the representations of loop groups of type $A$, are finite-depth subfactors. The index value and...

Evidence that the protein components of bovine erythrocyte green heme binding protein and flavin reductase are identical (1991)

Quandt, Kim S., Xu, Feng, Chen, Ping, Hultquist, Donald E.

Bovine erythrocyte green heme binding protein and bovine erythrocyte flavin reductase have been isolated in highly purified forms and subjected to amino acid analysis and N-terminal amino acid...

Application of a H 2 + -like model to helium atom. Solution of the wave equation at the ground state (1989)

Xu, Feng

The wave equation of helium atom is solved based on a “H 2 + -like” model. A good agreement between the theoretical and experimental ionization energies is obtained.

Estimating the Costs of Revenue Assurance

Feng Xu, Chad E. Hart, Darnell B. Smith, William H. Meyers

Using a formula to estimate per acre costs at 70, 75, and 80 percent levels of coverage, this study provides estimates of the government cost of the revenue assurance plan, one of the alternative...

The surface coordination chemistry of cuprate high-temperature superconductors.

Xu, Feng.

Thesis (Ph. D., Chemistry)--Northwestern University, 1999.

Algebraic orbifold conformal field theories

Xu, Feng

The unitary rational orbifold conformal field theories in the algebraic quantum field theory and subfactor theory framework are formulated. Under general conditions, it is shown that the orbifold of...

Species-specific differences in the operational RNA code for aminoacylation of tRNATrp

Xu, Feng, Chen, Xianglong, Xin, Li, Chen, Li, Jin, Youxin, Wang, Debao

Identity elements play essential roles in the recognition of tRNAs by their cognate aminoacyl-tRNA synthetase. An operational RNA code relates amino acids to specific sequences and structural...

Comparison of Fungal Laccases and Redox Mediators in Oxidation of a Nonphenolic Lignin Model Compound

Li, Kaichang, Xu, Feng, Eriksson, Karl-Erik L.

Several fungal laccases have been compared for the oxidation of a nonphenolic lignin dimer, 1-(3,4-dimethoxyphenyl)-2-(2-methoxyphenoxy)propan-1,3-diol (I), and a phenolic lignin model compound,...

Molecular Characterization of Laccase Genes from the Basidiomycete Coprinus cinereus and Heterologous Expression of the Laccase Lcc1

Yaver, Debbie S., Overjero, Maria Del Carmen, Xu, Feng, Nelson, Beth A., Brown, Kim M., Halkier, Torben, ...

A laccase from Coprinus cinereus is active at alkaline pH, an essential property for some potential applications. We cloned and sequenced three laccase genes (lcc1, lcc2, and lcc3) from the ink cap...

Redox Chemistry in Laccase-Catalyzed Oxidation of N-Hydroxy Compounds

Xu, Feng, Kulys, Juozas J., Duke, Kyle, Li, Kaichang, Krikstopaitis, Kastis, Deussen, Heinz-Josef W., ...

1-Hydroxybenzotriazole, violuric acid, and N-hydroxyacetanilide are three N-OH compounds capable of mediating a range of laccase-catalyzed biotransformations, such as paper pulp delignification and...

AML1-ETO and C-KIT mutation/overexpression in t(8;21) leukemia: Implication in stepwise leukemogenesis and response to Gleevec

Wang, Yue-Ying, Zhou, Guang-Biao, Yin, Tong, Chen, Bing, Shi, Jing-Yi, Liang, Wen-Xue, ...

To explore the genetic abnormalities that cooperate with AML1-ETO (AE) fusion gene to cause acute myeloid leukemia (AML) with t(8;21), we screened a number of candidate genes and identified 11 types...

Two essential regions for tRNA recognition in Bacillus subtilis tryptophanyl-tRNA synthetase.

Jia, Jie, Xu, Feng, Chen, Xianglong, Chen, Li, Jin, Youxin, Wang, Debao T P

Bacillus subtilis tryptophanyl-tRNA synthetase (TrpRS) is a homodimeric enzyme. A model for its ability to recognize tRNA(Trp) in B. subtilis was proposed by using computer modelling. This was based...

The diagnostic significance of the detection of cytokeratin 19 mRNA by quantitative RT-PCR in benign and malignant pleural effusions

Xu, Feng, Chen, Jie, Shen, Hua-hao, Wang, Xuan-ding, Shan, Jiang

Objective: To evaluate the diagnostic significance of detecting cytokeratin 19 (CK19) mRNA by quantitative reverse transcription polymerase chain reaction (RT-PCR) in benign and malignant pleural...

Modulation of Expression of Rat Mitochondrial 2-Oxoglutarate Carrier in NRK-52E Cells Alters Mitochondrial Transport and Accumulation of Glutathione and Susceptibility to Chemically Induced Apoptosis

Xu, Feng, Putt, David A., Matherly, Larry H., Lash, Lawrence H.

We previously showed that two anion carriers of the mitochondrial inner membrane, the dicarboxylate carrier (DIC; Slc25a10) and oxoglutarate carrier (OGC; Slc25a11), transport glutathione (GSH) from...

Protease nexin-2/amyloid β-protein precursor limits cerebral thrombosis

Xu, Feng, Davis, Judianne, Miao, Jianting, Previti, Mary Lou, Romanov, Galina, Ziegler, Kelly, ...

The amyloid β-protein precursor (AβPP) is best known as the parent molecule to the amyloid β-peptide that accumulates in the brains of patients with Alzheimer's disease. Secreted isoforms of AβPP...

Acetylation of H2AZ Lys 14 is associated with genome-wide gene activity in yeast

Millar, Catherine B., Xu, Feng, Zhang, Kangling, Grunstein, Michael

Histone variants and their post-translational modifications help regulate chromosomal functions. Htz1 is an evolutionarily conserved H2A variant found at several promoters in the yeast Saccharomyces...

Algebraic orbifold conformal field theories

Xu, Feng

The unitary rational orbifold conformal field theories in the algebraic quantum field theory and subfactor theory framework are formulated. Under general conditions, it is shown that the orbifold of...

Species-specific differences in the operational RNA code for aminoacylation of tRNATrp

Xu, Feng, Chen, Xianglong, Xin, Li, Chen, Li, Jin, Youxin, Wang, Debao

Identity elements play essential roles in the recognition of tRNAs by their cognate aminoacyl-tRNA synthetase. An operational RNA code relates amino acids to specific sequences and structural...

Comparison of Fungal Laccases and Redox Mediators in Oxidation of a Nonphenolic Lignin Model Compound

Li, Kaichang, Xu, Feng, Eriksson, Karl-Erik L.

Several fungal laccases have been compared for the oxidation of a nonphenolic lignin dimer, 1-(3,4-dimethoxyphenyl)-2-(2-methoxyphenoxy)propan-1,3-diol (I), and a phenolic lignin model compound,...

Molecular Characterization of Laccase Genes from the Basidiomycete Coprinus cinereus and Heterologous Expression of the Laccase Lcc1

Yaver, Debbie S., Overjero, Maria Del Carmen, Xu, Feng, Nelson, Beth A., Brown, Kim M., Halkier, Torben, ...

A laccase from Coprinus cinereus is active at alkaline pH, an essential property for some potential applications. We cloned and sequenced three laccase genes (lcc1, lcc2, and lcc3) from the ink cap...

Redox Chemistry in Laccase-Catalyzed Oxidation of N-Hydroxy Compounds

Xu, Feng, Kulys, Juozas J., Duke, Kyle, Li, Kaichang, Krikstopaitis, Kastis, Deussen, Heinz-Josef W., ...

1-Hydroxybenzotriazole, violuric acid, and N-hydroxyacetanilide are three N-OH compounds capable of mediating a range of laccase-catalyzed biotransformations, such as paper pulp delignification and...

AML1-ETO and C-KIT mutation/overexpression in t(8;21) leukemia: Implication in stepwise leukemogenesis and response to Gleevec

Wang, Yue-Ying, Zhou, Guang-Biao, Yin, Tong, Chen, Bing, Shi, Jing-Yi, Liang, Wen-Xue, ...

To explore the genetic abnormalities that cooperate with AML1-ETO (AE) fusion gene to cause acute myeloid leukemia (AML) with t(8;21), we screened a number of candidate genes and identified 11 types...

Two essential regions for tRNA recognition in Bacillus subtilis tryptophanyl-tRNA synthetase.

Jia, Jie, Xu, Feng, Chen, Xianglong, Chen, Li, Jin, Youxin, Wang, Debao T P

Bacillus subtilis tryptophanyl-tRNA synthetase (TrpRS) is a homodimeric enzyme. A model for its ability to recognize tRNA(Trp) in B. subtilis was proposed by using computer modelling. This was based...

Protease nexin-2/amyloid β-protein precursor limits cerebral thrombosis

Xu, Feng, Davis, Judianne, Miao, Jianting, Previti, Mary Lou, Romanov, Galina, Ziegler, Kelly, ...

The amyloid β-protein precursor (AβPP) is best known as the parent molecule to the amyloid β-peptide that accumulates in the brains of patients with Alzheimer's disease. Secreted isoforms of AβPP...

The diagnostic significance of the detection of cytokeratin 19 mRNA by quantitative RT-PCR in benign and malignant pleural effusions

Xu, Feng, Chen, Jie, Shen, Hua-hao, Wang, Xuan-ding, Shan, Jiang

Objective: To evaluate the diagnostic significance of detecting cytokeratin 19 (CK19) mRNA by quantitative reverse transcription polymerase chain reaction (RT-PCR) in benign and malignant pleural...

Acetylation of H2AZ Lys 14 is associated with genome-wide gene activity in yeast

Millar, Catherine B., Xu, Feng, Zhang, Kangling, Grunstein, Michael

Histone variants and their post-translational modifications help regulate chromosomal functions. Htz1 is an evolutionarily conserved H2A variant found at several promoters in the yeast Saccharomyces...

Cerebral Microvascular Amyloid β Protein Deposition Induces Vascular Degeneration and Neuroinflammation in Transgenic Mice Expressing Human Vasculotropic Mutant Amyloid β Precursor Protein

Miao, Jianting, Xu, Feng, Davis, Judianne, Otte-Höller, Irene, Verbeek, Marcel M., Van Nostrand, William E.

Cerebral vascular amyloid β-protein (Aβ) deposition, also known as cerebral amyloid angiopathy, is a common pathological feature of Alzheimer’s disease. Additionally, several familial forms of...

Assembly and Reorientation of Stress Fibers Drives Morphological Changes to Endothelial Cells Exposed to Shear Stress

Noria, Sabrena, Xu, Feng, McCue, Shannon, Jones, Mara, Gotlieb, Avrum I., Langille, B. Lowell

Fluid shear stress greatly influences the biology of vascular endothelial cells and the pathogenesis of atherosclerosis. Endothelial cells undergo profound shape change and reorientation in response...

Protein kinase C-mediated Ca2+ entry in HEK 293 cells transiently expressing human TRPV4

Xu, Feng, Satoh, Eisaku, Iijima, Toshihiko

We investigated whether protein kinase C (PKC) activation stimulates Ca2+ entry in HEK 293 cells transfected with human TRPV4 cDNA and loaded with fura-2.Phorbol 12-myristate 13-acetate (PMA), a...

A case of chylothorax treated curatively with Sapylin, a streptococcus preparation*

Xu, Zhi-hao, Wang, Chun-fu, Zhang, Yue-qin, Shen, Hua-hao, Xu, Feng

Chylothorax is an uncommon disease where fatty fluid accumulates within the chest cavity. Conservative management, including repeated thoracentesis or pleurodesis, seems to be suitable to most cases....

AtPID: Arabidopsis thaliana protein interactome database—an integrative platform for plant systems biology

Cui, Jian, Li, Peng, Li, Guang, Xu, Feng, Zhao, Chen, Li, Yuhua, ...

Arabidopsis thaliana Protein Interactome Database (AtPID) is an object database that integrates data from several bioinformatics prediction methods and manually collected information from the...

MANAGING EXPECTED RETURN OF INVESTORS: CONVERTIBLE BONDS IN CHINA

RUYAN YANG, HUI MENG, FENG XU

This article studies the market reaction surrounding the announcement of the convertible bonds issuance in Chinese market, and partly explains the difference of influence on underlying securities in...

Estimating the Costs of Revenue Assurance

Feng Xu, Chad E. Hart, Darnell B. Smith, William H. Meyers

Using a formula to estimate per acre costs at 70, 75, and 80 percent levels of coverage, this study provides estimates of the government cost of the revenue assurance plan, one of the alternative...

Three-dimensional polymeric systems for cancer cell studies

Xu, Feng, Burg, Karen J.L.

Three-dimensional (3-D) culture of cancer cells and of normal mammalian cells in a polymeric matrix is generally a better alternate model for understanding the regulation of cancer cell proliferation...

The distribution of the product of two triangular random variables

Glickman, Theodore S., Xu, Feng

Although computer simulation can be used to determine the distribution of the product of two triangularly distributed variables for a specific application, a closed-form expression is preferable in...

MODELING NONNEGATIVITY VIA TRUNCATED LOGISTIC AND NORMAL DISTRIBUTIONS: AN APPLICATION TO RANCH LAND PRICE ANALYSIS

Xu, Feng, Mittelhammer, Ron C., Torell, L. Allen

This study presents an empirical method of modeling the nonnegativity of dependent variables using truncated logistic and normal disturbance distributions. The method is applied in estimating a ranch...

Purification, crystallization and preliminary crystallographic analysis of cytochrome P450 203A1 from Rhodopseudomonas palustris

Pang, Xiaoyun, Xu, Feng, Bell, Stephen G., Guo, Delin, Wong, Luet-Lok, Rao, Zihe

The cytochrome P450 enzyme CYP203A1 from Rhodopseudomonas palustris binds a wide range of highly substituted aromatic compounds and may play an important role in the astonishing metabolic diversity...

Crystallization and preliminary X-ray diffraction studies of a ferredoxin reductase from Rhodopseudomonas palustris CGA009

Peng, Ying, Xu, Feng, Bell, Stephen G., Wong, Luet-Lok, Rao, Zihe

Palustrisredoxin reductase (RPA3782, PuR), a flavin-dependent ferredoxin reductase, is an essential component of the Class I cytochrome P450 systems in Rhodopseudomonas palustris CGA009. Crystals of...

Risk factors for intrahepatic cholangiocarcinoma: A case-control study in China

Zhou, Yan-Ming, Yin, Zheng-Feng, Yang, Jia-Mei, Li, Bin, Shao, Wen-Yu, Xu, Feng, ...

AIM: To carry out a hospital-based case-control study to investigate risk factors for intrahepatic cholangiocarcinoma (ICC) in China.

Clinicopathologic characteristics of intrahepatic cholangiocarcinoma in patients with positive serum a-fetoprotein

Zhou, Yan-Ming, Yang, Jia-Mei, Li, Bin, Yin, Zheng-Feng, Xu, Feng, Wang, Bin, ...

AIM: To explore clinicopathologic characteristics of intrahepatic cholangiocarcinoma (ICC) in patients with positive serum a-fetoprotein (AFP).

Measuring the Contributions of Site Characteristics to the Value of Agricultural Land

Feng Xu, Ron C. Mittelhammer, Paul W. Barkley

This study examines the effects of different combinations and qualities of selected site characteristics on the value of agricultural land in six substate regions in Washington State. The analysis...