Search results for: R.J. Young

Items from 1 to 20 out of 81 results

article

Influence of the chemical functionalization of graphene on the properties of polypropylene-based nanocomposites

S. Quiles-Díaz, P. Enrique-Jimenez, D.G. Papageorgiou, F. Ania, more

Composites Part A: Applied Science and Manufacturing > 2017 > 100 > C > 31-39

Nanocomposites of polypropylene were prepared with different loadings of both commercially-available graphene and graphene that had been modified with low molecular weight polypropylene brushes. The dependence of the thermal stability, electrical conductivity and mechanical properties of the composites on the type and loading of graphene have been investigated. The mechanical properties were studied...

article

The impact of noise from open-cast mining on Atlantic forest biophony

M.H.L. Duarte, R.S. Sousa-Lima, R.J. Young, A. Farina, more

Biological Conservation > 2015 > 191 > C > 623-631

The sound produced by human-made machinery (technophony) is known to exert negative effects on animal communication and well-being. Mining is an important economic activity in Brazil, which is often conducted close to forested areas and produces a diffuse noise. In this study, the impact of such noise on biophony (biological sounds) was investigated by characterizing and comparing the soundscapes...

article

3401 Absence of progression, not extent of remission defines prognosis in soft tissue sarcoma - an analysis of the EORTC 62012 study

V. Grünwald, S. Litiere, R.J. Young, C. Messiou, more

European Journal of Cancer > 2015 > 51 > S3 > S688

article

First-line anthracycline-based chemotherapy for angiosarcoma and other soft tissue sarcoma subtypes: Pooled analysis of eleven European Organisation for Research and Treatment of Cancer Soft Tissue and Bone Sarcoma Group trials

R.J. Young, A. Natukunda, S. Litière, P.J. Woll, more

European Journal of Cancer > 2014 > 50 > 18 > 3178-3186

Angiosarcoma is a rare subtype of soft tissue sarcoma (STS). Doxorubicin is the standard first-line chemotherapy for advanced STS. It is not known whether angiosarcoma response to anthracycline-based chemotherapy is different to other STS subtypes.Pooled data were analysed from 11 prospective randomised and non-randomised European Organisation for Research and Treatment of Cancer (EORTC) clinical...

article

Radiographic Features, Patterns of Treatment Failure, and Clinical Outcomes in 56 Cases of Molecularly Subtyped Glioblastoma Multiforme Patients

Q. LaPlant, K. Pitter, R.J. Young, Y. Yamada, more

International Journal of Radiation Oncology, Biology, Physics > 2014 > 90 > 1 Supplement > S281

article

Controlling and mapping interfacial stress transfer in fragmented hybrid carbon fibre–carbon nanotube composites

S.-Y. Jin, R.J. Young, S.J. Eichhorn

Composites Science and Technology > 2014 > 100 > Complete > 121-127

Raman spectroscopy was used to map the stress transfer at the interface between high and low modulus carbon fibres in model composites when undergoing fragmentation. Both fibre surfaces were coated with two types of single wall carbon nanotubes (HiPCO and carboxylated nanotubes) in order to enhance the interfacial shear strength with an epoxy resin. For the low modulus carbon fibre this coating also...

article

Hybrid carbon fibre–carbon nanotube composite interfaces

S.-Y. Jin, R.J. Young, S.J. Eichhorn

Composites Science and Technology > 2014 > 95 > Complete > 114-120

Both low and high modulus carbon fibres are coated with carboxylated single wall carbon nanotubes (SWNTs). It is shown that it is then possible to follow, for the first time, the local deformation of low modulus carbon fibres and composite interfaces using Raman spectroscopy. By deforming coated single carbon fibre filaments in tension, and following the shift in the position of a band located at...

article

Dynamic microstructural evolution of graphite under displacing irradiation

J.A. Hinks, S.J. Haigh, G. Greaves, F. Sweeney, more

Carbon > 2014 > 68 > C > 273-284

Graphitic materials and graphite composites experience dimensional change when exposed to radiation-induced atomic displacements. This has major implications for current and future technological ranging from nuclear fission reactors to the processing of graphene–silicon hybrid devices. Dimensional change in nuclear graphites is a complex problem involving the filler, binder, porosity, cracks and atomic-level...

article

Molecular Biology and Therapeutics

A.M. Lim, H. Do, R.J. Young, S.Q. Wong, more

International Journal of Radiation Oncology, Biology, Physics > 2014 > 88 > 2 > 512

article

Phase IIa randomized, placebo‐controlled study of antimicrobial photodynamic therapy in bacterially colonized, chronic leg ulcers and diabetic foot ulcers: a new approach to antimicrobial therapy

S. Morley, J. Griffiths, G. Philips, H. Moseley, more

British Journal of Dermatology > 168 > 3 > 617 - 624

Background With increasing problems of antibiotic resistance, photodynamic therapy (PDT) is being developed as a novel antimicrobial treatment. Following light activation, cationic photosensitizer PPA904 [3,7‐bis(N,N‐dibutylamino) phenothiazin‐5‐ium bromide] kills a broad spectrum of bacteria in vitro and this has a variety of potential clinical applications. Objectives To determine if PDT in bacterially...

article

Correlation of Planned Dose to Area Postrema and Dorsal Vagal Complex With Clinical Symptoms of Nausea and Vomiting in a Series of Oropharyngeal Cancer (OPC) Patients Treated With Radiation Alone Using IMRT

T.J. Wang, S. Fontenla, P. McCann, R.J. Young, more

International Journal of Radiation Oncology*Biology*Physics > 2012 > 84 > 3(S) > S467

article

Quantification of Tumor Growth Kinetics in Patients Showing Progression From Low-grade to High-grade Gliomas

R. Munbodh, R.J. Young, H. Tagare, N.T. Nguyen, more

International Journal of Radiation Oncology*Biology*Physics > 2012 > 84 > 3(S) > S273-S274

article

Correlation of the Dose Delivered to the Nausea Center With Acute Onset of Nausea and Vomiting in Oropharynx Cancer Patients Treated With Chemoradiation

A. Jackson, T.J. Wang, N. Riaz, J. Chang, more

International Journal of Radiation Oncology*Biology*Physics > 2012 > 84 > 3(S) > S752-S753

article

Autophagy in cancer: Having your cake and eating it

Matthew Hoare, Andrew R.J. Young, Masashi Narita

Seminars in Cancer Biology > 2011 > 21 > 6 > 397-404

Autophagy, one of two major intracellular degradation pathways, plays a critical role in energy homeostasis and the quality control of macromolecules and intracellular organelles. Previous work has demonstrated the importance of autophagy in maintaining cellular fitness, both in healthy and stressful conditions, revealing the complex interplay between autophagy and other stress-responsive phenotypes...

article

Structure of and stress transfer in fibres spun from carbon nanotubes produced by chemical vapour deposition

J.J. Vilatela, L. Deng, I.A. Kinloch, R.J. Young, more

Carbon > 2011 > 49 > 13 > 4149-4158

One of the most promising routes for exploiting the axial properties of carbon nanotubes (CNTs) is in a macroscopic fibre consisting of CNTs aligned parallel to each other and to the fibre axis. In this work, we study the structure of and stress transfer in CNT fibres produced by direct spinning from the gas-phase during CNT growth. Using Raman spectroscopy, X-ray diffraction (XRD) and high-resolution...

article

Simultaneous global and local strain sensing in SWCNT–epoxy composites by Raman and impedance spectroscopy

A. de la Vega, I.A. Kinloch, R.J. Young, W. Bauhofer, more

Composites Science and Technology > 2011 > 71 > 2 > 160-166

Polymer composites can be benefited in many ways through the addition of carbon nanotubes (CNT). For instance, CNT can build up a percolated network within the polymer matrix, which results in a composite material with electrical conductivity and piezoresistive characteristics. This has very important implications for the realization of self-stress sensing structural composites. Moreover, the remarkable...

article

Relevance of the purity level in a MetalOrganic Vapour Phase Epitaxy reactor environment for the growth of high quality pyramidal site-controlled Quantum Dots

V. Dimastrodonato, L.O. Mereni, R.J. Young, E. Pelucchi

Journal of Crystal Growth > 2011 > 315 > 1 > 119-122

We report in this work on the spectral purity of pyramidal site-controlled InGaAs/AlGaAs Quantum Dots grown by metal-organic vapour phase epitaxy on (111)B oriented GaAs substrates. Extremely sharp emission peaks were found, showing linewidths surprisingly narrow (∼27μeV) and comparable to those that can be obtained by Molecular Beam Epitaxy in an ultra-high vacuum environment. A careful reactor handling...

article

AlGaAs/GaAs/AlGaAs quantum wells as a sensitive tool for the MOVPE reactor environment

V. Dimastrodonato, L.O. Mereni, R.J. Young, E. Pelucchi

Journal of Crystal Growth > 2010 > 312 > 21 > 3057-3062

We present in this work a simple quantum well (QW) structure consisting of GaAs wells with AlGaAs barriers as a probe for measuring the performance of arsine purifiers within a metalorganic vapour phase epitaxy system. Comparisons between two different commercially available purifiers are based on the analysis of low-temperature photoluminescence emission spectra from thick QWs, grown on GaAs substrates...

article

Micromechanical analysis of the kink‐band performance at the interface of a thermoplastic composite under tensile deformation

P.I. Gonzalez‐Chi, E.A. Flores‐Johnson, J.G. Carrillo‐Baeza, R.J. Young

Polymer Composites > 31 > 10 > 1817 - 1821

The manufacture of thermoplastic composites normally involves compression molding that generates fiber dislocations known as kink‐bands, which create stress concentrations able to cause the premature compression failure of a composite; nevertheless, the kink‐band influence over the interfacial performance or failure of a composite tested under tension is not fully understood. This work uses Raman...

article

Physics of novel site controlled InGaAs quantum dots on (111) oriented substrates

S.B. Healy, R.J. Young, L.O. Mereni, V. Dimastrodonato, more

Physica E: Low-dimensional Systems and Nanostructures > 2010 > 42 > 10 > 2761-2764

Recent work has shown that site-controlled dots (QD) grown on (111)B GaAs substrates, pre-patterned with tetrahedral pyramidal recesses (Baier et al., 2006) [1], (Pelucchi et al., 2007) [2], (Zhu et al., 2007) [3] are suitable for the generation of single and entangled photons (Young et al., 2009) [4]. We recently introduced InGaAs/GaAs site controlled QD structures which demonstrated record breaking...

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INFONA - science communication portal

Search results for: R.J. Young

Influence of the chemical functionalization of graphene on the properties of polypropylene-based nanocomposites

The impact of noise from open-cast mining on Atlantic forest biophony

3401 Absence of progression, not extent of remission defines prognosis in soft tissue sarcoma - an analysis of the EORTC 62012 study

First-line anthracycline-based chemotherapy for angiosarcoma and other soft tissue sarcoma subtypes: Pooled analysis of eleven European Organisation for Research and Treatment of Cancer Soft Tissue and Bone Sarcoma Group trials

Radiographic Features, Patterns of Treatment Failure, and Clinical Outcomes in 56 Cases of Molecularly Subtyped Glioblastoma Multiforme Patients

Controlling and mapping interfacial stress transfer in fragmented hybrid carbon fibre–carbon nanotube composites

Hybrid carbon fibre–carbon nanotube composite interfaces

Dynamic microstructural evolution of graphite under displacing irradiation

Molecular Biology and Therapeutics

Phase IIa randomized, placebo‐controlled study of antimicrobial photodynamic therapy in bacterially colonized, chronic leg ulcers and diabetic foot ulcers: a new approach to antimicrobial therapy

Correlation of Planned Dose to Area Postrema and Dorsal Vagal Complex With Clinical Symptoms of Nausea and Vomiting in a Series of Oropharyngeal Cancer (OPC) Patients Treated With Radiation Alone Using IMRT

Quantification of Tumor Growth Kinetics in Patients Showing Progression From Low-grade to High-grade Gliomas

Correlation of the Dose Delivered to the Nausea Center With Acute Onset of Nausea and Vomiting in Oropharynx Cancer Patients Treated With Chemoradiation

Autophagy in cancer: Having your cake and eating it

Structure of and stress transfer in fibres spun from carbon nanotubes produced by chemical vapour deposition

Simultaneous global and local strain sensing in SWCNT–epoxy composites by Raman and impedance spectroscopy

Relevance of the purity level in a MetalOrganic Vapour Phase Epitaxy reactor environment for the growth of high quality pyramidal site-controlled Quantum Dots

AlGaAs/GaAs/AlGaAs quantum wells as a sensitive tool for the MOVPE reactor environment

Micromechanical analysis of the kink‐band performance at the interface of a thermoplastic composite under tensile deformation

Physics of novel site controlled InGaAs quantum dots on (111) oriented substrates

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