Results 31 to 40 of about 217,698 (299)

Theory of photoinduced charge transfer in weakly coupled donor-acceptor conjugated polymers: application to an MEH-PPV:CN-PPV pair

, 1997
In a pair of coupled donor-acceptor conjugated polymer chains, it is possible for an exciton photoexcited on either polymer to decay into a hole in the donor polymer's valence band and an electron in the conduction band of the acceptor polymer.
Campbell, Conwell, E.M. Conwell, Fink, Halls, Kepler, Kraabel, Landau, M.W. Wu, Mizes, Morita, Morita, Morita, Rauscher, Rice, Samuel, Sariciftci, Sariciftci, Sariciftci, Wu, Yu, Yu   +21 more
core   +1 more source

Linear and nonlinear optical properties of the conjugated polymers PPV and MEH-PPV [PDF]

Physical Review B, 1999
We have used absorption and electroabsorption spectroscopy to investigate the electronic structure of poly(para-phenylene vinylene) (PPV) and poly (2-methoxy, 5-(2'-(ethyl)hexyloxy)-p-phenylene vinylene) (MEH-PPV). In particular we examine the often used assumption that the electronic structure of PPV and its dialkoxy substituted derivatives are ...
Martin, S. J., Bradley, D. D. C., Lane, P. A., Mellor, H., Burn, P. L.   +4 more
openaire   +2 more sources

Plum pox virus strains: Diversity and geographical distribution in Serbia [PDF]

Pesticidi i Fitomedicina, 2014
Plum pox virus (PPV) is the causal agent of Sharka disease. Since its discovery, Sharka has been considered as a calamity in plum orchards. PPV is present worldwide in many Prunus species, causing great economic losses.
Darko Jevremović, Svetlana Paunović
doaj   +1 more source

Evaluation of the Prunus interspecific progenies for resistance to Plum pox virus

Czech Journal of Genetics and Plant Breeding, 2013
Sharka disease caused by the infection with the Plum pox virus (PPV) in stone fruit trees is worldwide the most devastating for stone fruit production. Until now, good sources of resistance to PPV within the peach group have not been available. There are
Jaroslav SALAVA, Jaroslav POLÁK, Ivan OUKROPEC   +2 more
doaj   +1 more source

Contemporary outbreaks of different avipoxviruses in Humboldt penguins of wild animal park Planckendael and in chickens of commercial poultry farms in Belgium [PDF]

, 2017
In the present study, the first outbreak of a penguinpox virus (PPV) in Humboldt penguins (Spheniscus humboldd) and four outbreaks of fowlpox virus (FPV) in layer chickens are reported.
Avalakuppa Papi Reddy, Vishwanatha Reddy, Nauwynck, Hans, Trus, Ivan, Vercammen, Francis   +3 more
core  

Positive-, negative-, and orthogonal-phase-velocity propagation of electromagnetic plane waves in a simply moving medium

, 2005
Planewave propagation in a simply moving, dielectric-magnetic medium that is isotropic in the co-moving reference frame, is classified into three different categories: positive-, negative-, and orthogonal-phase-velocity (PPV, NPV, and OPV).
Akhlesh Lakhtakia, Chawla, Chen, Gersten, Lakhtakia, Mackay, Mackay, Paniou, Pappas, Rachford, Sandi Setiawan, Simovski, Tom G. Mackay, Weiglhofer   +13 more
core   +3 more sources

Diagnostic value of combined serum biomarkers for the evaluation of liver fibrosis in chronic hepatitis C infection: A multicenter, noninterventional, observational study [PDF]

, 2018
Background/Aims: The hepatitis C virus (HCV) infection is important cause of chronic hepatitis. Liver biopsy is considered the gold standard for assessment of fibrosis but this procedure is an invasive procedure.
Akhan, S., Aydoǧdu, Ö., Baykam, N., Beslen, N., Bostanci, F., Candan, M., Daǧli, Ö., Demirdal, T., Duyar, E., Erdoǧan, S., Gökal, A.A., Güner, R., Gürbüz, Y., Inan, D., Kaya, A., Kaya, S., Kiliç, S., Kinikli, S., Kuruüzüm, Z., Kökoǧlu, Ö.F., Köksal, I., Leblebicioǧlu, H., Namiduru, M., Parlak, M., Sehmen, E., Tabak, F., Tarakçi, H., Turgut, Hüseyin, Ural, O., Yamazhan, T., Yilmaz, G., Yuluǧkural, Z., Önlen, Y., Özdemir, D., Özdener, F.   +34 more
core   +1 more source

Development of a Prediction Model for Progression Risk in High‐Grade Gliomas Based on Habitat Radiomics and Pathomics

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To investigate the value of constructing models based on habitat radiomics and pathomics for predicting the risk of progression in high‐grade gliomas. Methods This study conducted a retrospective analysis of preoperative magnetic resonance (MR) images and pathological sections from 72 patients diagnosed with high‐grade gliomas (52 ...
Yuchen Zhu, Yuxi Gong, Weilin Xu, Xingjian Sun, Gefei Jiang, Lei Qiu, Kexin Shi, Mengxing Wu, Yinjiao Fei, Jinling Yuan, Jinyan Luo, Yurong Li, Yuandong Cao, Minhong Pan, Shu Zhou   +14 more
wiley   +1 more source

Perioperative anti-vascular endothelial growth factor treatment in diabetic vitrectomy: A narrative review

Indian Journal of Ophthalmology
With the rising prevalence of diabetes mellitus globally, vision-threatening diabetic retinopathy (DR) is also rapidly increasing. Due to the advent of newer instrumentation, the indications of pars plana vitrectomy (PPV) in such advanced DR patients ...
Ramanuj Samanta, Sabia Handa, Nitin Kumar Menia, Raghavendra Rao Kolavali   +3 more
doaj   +1 more source

Dementia Incidence in Individuals With Parkinson's Disease in the Framingham Heart Study

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Limited information exists on incident dementia in individuals with Parkinson's disease (PD) in US community‐based samples. We examined cognitive statuses and PD diagnoses of 183 individuals in the Framingham Heart Study (FHS) to establish incident dementia, mortality rates, associations with sex, age at PD onset, and education level.
Joshi Dookhy, Michael Cummings, Eden Price, Yulin Liu, Santiago Gutierrez‐Gomez, Sarah O'Shea, Samuel Frank, Rhoda Au, Ashita S. Gurnani, Ting Fang Alvin Ang, Jesse Mez, Ludy C. Shih   +11 more
wiley   +1 more source