W. Chen

Publication List Details

Period

1973 - 2008

Number

303

Co-Authors

Raman spectroscopy of epitaxial graphene on a SiC substrate (2008)

Ni, Z. H., Chen, W., Fan, X. F., Kuo, J. L., Yu, T., Wee, A. T. S., ...

The fabrication of epitaxial graphene (EG) on SiC substrate by annealing has attracted a lot of interest as it may speed up the application of graphene for future electronic devices. The interaction...

Linkage to chromosome 1p36 for Attention Deficit Hyperactivity Disorder traits in school and home settings (2008)

Zhou, K., Asherson, P., Sham, P., Franke, B., Anney, R.J., Buitelaar, J., ...

Background Limited success has been achieved through previous attention-deficit/hyperactivity disorder (ADHD) linkage scans, which were all designed to map genes underlying the dichotomous phenotype....

Co-transmission of conduct problems with attention-deficit/hyperactivity disorder: familial evidence for a distinct disorder (2008)

Christiansen, H., Chen, W., Oades, R.D., Asherson, P., Taylor, E.A., Lasky-Su, J., ...

Common disorders of childhood and adolescence are attention-deficit/hyperactivity disorder (ADHD), oppositional defiant disorder (ODD) and conduct disorder (CD). For one to two cases in three...

A high-density SNP linkage scan with 142 combined subtype ADHD sib pairs identifies linkage regions on chromosomes 9 and 16 (2008)

Asherson, P., Zhou, K., Anney, R.J.L., Franke, B., Buitelaar, J., Ebstein, R., ...

As part of the International Multi-centre ADHD Genetics project we completed an affected sibling pair study of 142 narrowly defined Diagnostic and Statistical Manual of Mental Disorders, fourth...

Differential dopamine receptor D4 allele association with ADHD dependent of proband season of birth (2008)

Brookes, K.J., Neale, B., Xu, X., Thapar, A., Gill, M., Langley, K., ...

Season of birth (SOB) has been associated with attention deficit hyperactivity disorder (ADHD) in two existing studies. One further study reported an interaction between SOB and genotypes of the...

DSM-IV combined type ADHD shows familial association with sibling trait scores: A sampling strategy for QTL linkage (2008)

Chen, W., Zhou, K., Sham, P., Franke, B., Kuntsi, J., Campbell, D., ...

Attention deficit hyperactivity disorder (ADHD) is a discrete clinical syndrome characterized by the triad of inattention, hyperactivity, and impulsivity in the context of marked impairments....

No association between two polymorphisms of the serotonin transporter gene and combined type attention deficit hyperactivity disorder (2008)

Xu, X., Aysimi, E., Anney, R., Brookes, K., Franke, B., Zhou, K., ...

Several independent studies have reported association between serotonin transporter gene (SLC6A4) polymorphisms and attention deficit hyperactivity disorder (ADHD). Five studies found evidence for...

Genetic heterogeneity in ADHD: DAT1 gene only affects probands without CD (2007)

Zhou, K., Chen, W., Buitelaar, J., Banaschewski, T., Oades, R.D., Franke, B., ...

Previous studies have found heterogeneous association between DAT1-3-UTR-VNTR and attention deficit hyperactivity disorder (ADHD). Various proportions of conduct disorder (CD) comorbidity in their...

Finite size effects on spin-torque driven ferromagnetic resonance in spin-valves with a Co/Ni synthetic free layer (2007)

Chen, W., De Loubens, G., Beaujour, J-M. L., Kent, A. D., Sun, J. Z.

Spin-torque driven ferromagnetic resonance (ST-FMR) is used to study magnetic excitations in Co/Ni synthetic layers confined in nanojunctions. Field swept ST-FMR measurements were conducted with a...

Spin-torque driven ferromagnetic resonance of Co/Ni synthetic layers in spin valves (2007)

Chen, W., Beaujour, J-M. L., De Loubens, G., Kent, A. D., Sun, J. Z.

Spin-torque driven ferromagnetic resonance (ST-FMR) is used to study thin Co/Ni synthetic layers with perpendicular anisotropy confined in spin-valve based nanojunctions. Field swept ST-FMR...

Search for the \phi-N bound state from \phi meson subthreshold production (2007)

Liska, S., Gao, H., Chen, W., Qian, X.

The subthreshold photoproduction of \phi mesons from heavy nuclear targets has been suggested as a candidate to search for the \phi-N bound state, a quantum chromodynamics molecular state. In this...

Radiation- and Phonon-Bottleneck-Induced Tunneling in the Fe8 Single-Molecule Magnet (2007)

Bal, M., Friedman, Jonathan R., Chen, W., Tuominen, M. T., Beedle, C. C., Rumberger, E. M., ...

We measure magnetization changes in a single crystal of the single-molecule magnet Fe8 when exposed to intense, short (

Kerr-Schild Structure and Harmonic 2-forms on (A)dS-Kerr-NUT Metrics (2007)

Chen, W., Lu, H.

We demonstrate that the general (A)dS-Kerr-NUT solutions in D dimensions with ([D/2], [(D+1)/2]) signature admit [D/2] linearly-independent, mutually-orthogonal and affinely-parameterised null...

Resolved Calabi-Yau Cones and Flows from L^{abc} Superconformal Field Theories (2007)

Chen, W., Cvetic, M., Lu, H., Pope, C. N., Vazquez-Poritz, J. F.

We discuss D3-branes on cohomogeneity-three resolved Calabi-Yau cones over L^{abc} spaces, for which a 2-cycle or 4-cycle has been blown up. In terms of the dual quiver gauge theory, this corresponds...

Nonintrusive fiber monitoring of TDM optical networks (2007)

De Mulder, B, Chen, W, Bauwelinck, J, Vandewege, J, Qiu, X

This paper introduces a new embedded nonintrusive fiber-monitoring technique for time-division-multiplexing optical networks. It allows an optical transmitter to characterize the fiber plant from...

Rb is critical in a mammalian tissue stem cell population (2007)

Wenzel, P.L., Wu, L.L., Bruin, A. De, Chong, J., Chen, W., Dureska, G., ...

The inactivation of the retinoblastoma (Rb) tumor suppressor gene in mice results in ectopic proliferation, apoptosis, and impaired differentiation in extraembryonic, neural, and erythroid lineages,...

A novel technique for low-cost embedded non-intrusive fiber monitoring of P2MP optical access networks (2007)

Chen, W, De Mulder, B, Vandewege, J, Qiu, X, Bauwelinck, J, Baekelandt, B

A low cost embedded OTDR method is presented for monitoring the fiber plant of TDM optical networks without extra optical components nor performance penalty. It localizes abrupt changes in link...

Hydrological impacts of deforestation on the southeast Tibetian plateau (2007)

Cui, X. F., Graf, H. F., Langmann, B., Chen, W., Huang, R. H.

The hydrological impact of forest removal on the southeast Tibetan Plateau during the second half of the last century is investigated in this study using an atmospheric general circulation model. The...

Testing the 8-syndrome structure of the child behavior checklist in 30 societies (2007)

Ivanova, Masha Y., Achenbach, Thomas M., Dumenci, Levent, Rescorla, Leslie, Almqvist, Fredrik, Weintraub, Sheila, ...

There is a growing need for multicultural collaboration in child mental health services, training, and research. To facilitate such collaboration, this study tested the 8-syndrome structure of the...

Testing the 8-syndrome structure of the child behavior checklist in 30 societies (2007)

Ivanova, Masha Y., Achenbach, Thomas M., Dumenci, Levent, Rescorla, Leslie, Almqvist, Fredrik, Weintraub, Sheila, ...

There is a growing need for multicultural collaboration in child mental health services, training, and research. To facilitate such collaboration, this study tested the 8-syndrome structure of the...

Multiple primary melanomas in a CDKN2A mutation carrier exposed to ionizing radiation (2007)

Eliason, MJ, Hansen, CB, Hart, M, Porter-Gill, P, Chen, W, Sturm, RA, ...

Background: Recent research has shown a possible causal relationship between ionizing radiation exposure and melanoma. Individuals with mutations in CDKN2A (cyclin-dependent kinase inhibitor 2A), the...

A three-single-nucleotide polymorphism haplotype in intron 1 of OCA2 explains most human eye-color variation (2007)

Duffy, D. L., Montgomery, G. W., Chen, W., Zhao, Z. Z., Le, L., James, M. R., ...

We have previously shown that a quantitative-trait locus linked to the OCA2 region of 15q accounts for 74% of variation in human eye color. We conducted additional genotyping to clarify the role of...

Ferromagnetic resonance study of sputtered Co|Ni multilayers (2006)

Beaujour, J-M. L., Chen, W., Krycka, K., Kao, C-C., Sun, J. Z., Kent, A. D.

We report on room temperature ferromagnetic resonance (FMR) studies of [$t$ Co$|2t$ Ni]$\times$N sputtered films, where $0.1 \leq t \leq 0.6$ nm. Two series of films were investigated: films with...

The analysis of 51 genes in DSM-IV combined type attention deficit hyperactivity disorder: association signals in DRD4, DAT1 and 16 other genes (2006)

Brookes, K, Xu, X, Chen, W, Zhou, K, Neale, B, Lowe, N, ...

Attention deficit hyperactivity disorder (ADHD) is a common neurodevelopmental disorder, starting in early childhood and persisting into adulthood in the majority of cases. Family and twin studies...

Spin-transfer in bilayer magnetic nanopillars at high fields as a function of free layer thickness (2006)

Chen, W., Kent, A. D., Rooks, M. J., Ruiz, N., Sun, J. Z.

Spin transfer in asymmetric Co/Cu/Co bilayer magnetic nanopillars junctions has been studied at low temperature as a function of free-layer thickness. The phase diagram for current-induced magnetic...

A digitally controlled on-chip monotonic reference current generator with low LSB current for fast and accurate optical level monitoring (2006)

Chen, W, Bauwelinck, J, Ossieur, P, Qiu, X, Vandewege, J

This paper describes a digitally controlled on-chip monotonic reference current generator with 8-bit resolution and a LSB (Least Significant Bit) current as low as 100 nA. It was designed as a...

High performance burst-mode upstream transmission for next generation PONs (invited paper) (2006)

Qiu, X, Yi, Y, Ossieur, P, Verschuere, S, Verhulst, D, De Mulder, B, ...

This paper presents the effective optical gain achieved with FEC in 1.25 Gbit/s GPON uplink yielding - 36 dBm burst-mode receiver sensitivity and 25 dB dynamic range. A low cost embedded fiber...

Embedded OTDR monitoring of the fiber plant behind the PON power splitter (2006)

Chen, W, De Mulder, B, Vandewege, J, Qiu, X

We present a laboratory prototype which verifies a novel embedded optical time-domain reflectometry 5OTSDR) approach. It integrates inexpensive fiber monitoring functionality into an optical network...

The role of nitrogen and in-crop lucerne suppression for increasing cereal performance in companion cropping systems (2006)

Harris, R., Clune, T., Peoples, M., Swan, A., Bellotti, William Douglas, Chen, W.

Five field experiments located at four sites (Burraja, Grogan, North Boorhaman and Roseworthy) across south eastern Australia compared cereal grain yields in the presence of lucerne (companion...

The analysis of 51 genes in DSM-IV combined type attention deficit hyperactivity disorder: association signals in DRD4, DAT1 and 16 other genes (2006)

Brookes, K., Xu, X., Chen, W., Zhou, K., Neale, B., Lowe, N., ...

Attention deficit hyperactivity disorder (ADHD) is a common neurodevelopmental disorder, starting in early childhood and persisting into adulthood in the majority of cases. Family and twin studies...

A Study of Heat Transfer in a Composite Wall Collector System with Porous Absorber (2006)

Chen, W.

In this paper, heat transfer and flow in a composite solar wall with porous absorber has been studied. The unsteady numerical simulation is employed to analyze the performance of the flow and...

The role of nitrogen and in-crop lucerne suppression for increasing cereal performance in companion cropping systems (2006)

Harris, R., Clune, T., Peoples, M., Swan, A., Bellotti, William Douglas, Chen, W.

Five field experiments located at four sites (Burraja, Grogan, North Boorhaman and Roseworthy) across south eastern Australia compared cereal grain yields in the presence of lucerne (companion...

Ferromagnetic resonance study of polycrystalline Cobalt ultrathin films (2005)

Beaujour, J-M. L., Chen, W., Kent, A. D., Sun, J. Z.

We present room temperature ferromagnetic resonance (FMR) studies of polycrystalline ||Pt/10 nm Cu/t Co/10 nm Cu/Pt|| films as a function of Co layer thickness (1 < t < 10 nm) grown by evaporation...

Microstructure and dielectric properties of dysprosium-doped barium titanate ceramics (2005)

Pu,Y., Chen,W., Chen,S., Langhammer,Hans T.

The substitution behavior and lattice parameter of barium titanate between solid_solubility with a dopant concentration in the range of 0.25 to 1.5 mol% are studied. The influences of...

A high-resolution burst-mode laser transmitter with fast and accurate level monitoring for 1.25 Gb/s upstream GPONs (2005)

Bauwelinck, J, Chen, W, Verhulst, D, Martens, Y, Ossieur, P, Qiu, X, ...

An innovative burst-mode laser transmitter (BM-TX) is presented for gigabit-capable passive optical network (GPON) upstream transmission at 1.25 Gb/s. The laser bias and modulation current each can...

A 1.25-Gb/s burst-mode receiver for GPON applications (2005)

Ossieur, P, Verhulst, D, Martens, Y, Chen, W, Bauwelinck, J, Qiu, X, ...

This paper presents a 1.25-Gb/s burst-mode receiver (BMRx) for upstream transmission over gigabit passive optical networks (G-PONs). The dc-coupled receiver uses a unique arrangement of three...

First results from NA60 on low mass muon pair production in In-In collisions at 158 GeV/nucleon (2005)

Damjanovic, S, Arnaldi, R, Averbeck, R, Banicz, K, Borer, K, Buytaert, J, ...

The NA60 experiment at the CERN SPS studies dimuon production in proton-nucleus and nucleus-nucleus collisions. The combined information from a novel vertex telescope made of radiation-tolerant...

An experimental set-up for the feasibility study of embedded optical fiber monitoring (2005)

Chen, W, De Mulder, B, Vandewege, J, Qiu, X, Bauwelinck, J, Van Renterghem, K

This paper introduces a new embedded optical fiber monitoring (OFM) technique to characterize the channel response of a passive optical network (PON). Embedded OFM aims to integrate a cost-effective...

A method for germinating perennial Cicer species (2005)

CJ Coyne, T Sharp-Vincent, MJ Cashman, CA Watt, W Chen, FJ Muehlbauer, ...

An in vitro germination method was examined as an alternative method to provide uniform germination of 28 accessions of Cicer anatolicum, C. canariense, C. macracanthum, C.microphyllum, C....