Results 21 to 30 of about 74,723 (348)

Transmission and group delay of microring coupled-resonator optical waveguides [PDF]

open access: yes, 2006
We measured the transmission and group delay of microring coupled-resonator optical waveguides (CROWs). The CROWs consisted of 12 weakly coupled, microring resonators fabricated in optical polymers (PMMA on Cytop).
DeRose, Guy A.   +3 more
core   +1 more source

Polymer Microring Coupled-Resonator Optical Waveguides [PDF]

open access: yes, 2006
We present measurements of the transmission and dispersion properties of coupled-resonator optical waveguides (CROWs) consisting of weakly coupled polymer microring resonators.
DeRose, Guy A.   +3 more
core   +1 more source

Experience with Treating Lentigo Maligna with Definitive Radiotherapy

open access: yesDermatology Research and Practice, 2018
Lentigo maligna (LM) is a form of melanoma in situ that occurs on exposed, sun-damaged skin; LM can progress to invasive melanoma. Conventional surgical treatment is the preferred management option as it is usually a one-treatment episode and generates a
Gerald B. Fogarty   +3 more
doaj   +1 more source

Pomen in vplivi vran, s poudarkom na sivi vrani (Corvus cornix), v (sub)urbanem okolju

open access: yesActa Silvae et Ligni, 2014
In recent decades, the increase in number of crows, particularly the hooded crow (Corvus cornix), in the (sub)urban environment has resulted in the ever-increasing conflicts with humans.
Boštjan Pokorny   +2 more
doaj   +1 more source

Population genetic structure and colonisation history of the tool-using New Caledonian crow. [PDF]

open access: yesPLoS ONE, 2012
New Caledonian crows exhibit considerable variation in tool making between populations. Here, we present the first study of the species' genetic structure over its geographical distribution.
Jawad Abdelkrim   +3 more
doaj   +1 more source

Neurons in the Hippocampus of Crows Lack Responses to Non-spatial Abstract Categories

open access: yesFrontiers in Systems Neuroscience, 2018
Lesion studies suggest a role of the avian hippocampus in spatial and episodic memory. However, whether the avian hippocampus is also involved in processing categorical information and non-spatial working memory contents remains unknown.
Helen M. Ditz   +2 more
doaj   +1 more source

Intracellular Diversity of WNV within Circulating Avian Peripheral Blood Mononuclear Cells Reveals Host-Dependent Patterns of Polyinfection

open access: yesPathogens, 2023
Arthropod-borne virus (arbovirus) populations exist as mutant swarms that are maintained between arthropods and vertebrates. West Nile virus (WNV) population dynamics are host-dependent.
Dalit Talmi-Frank   +12 more
doaj   +1 more source

Designing coupled-resonator optical waveguides based on high-Q tapered grating-defect resonators [PDF]

open access: yes, 2012
We present a systematic design of coupled-resonator optical waveguides (CROWs) based on high-Q tapered grating-defect resonators. The formalism is based on coupled-mode theory where forward and backward waveguide modes are coupled by the grating ...
Liu, Hsi-Chun, Yariv, Amnon
core   +1 more source

Crows control working memory before and after stimulus encoding

open access: yesScientific Reports, 2020
The capacity of working memory is limited and this limit is comparable in crows and primates. To maximize this resource, humans use attention to select only relevant information for maintenance. Interestingly, attention-cues are effective not only before
Erica Fongaro, Jonas Rose
doaj   +1 more source

Active coupled-resonator optical waveguides. II. Current injection InP-InGaAsP Fabry-Perot resonator arrays [PDF]

open access: yes, 2007
We investigate active, electrically pumped coupled-resonator optical waveguides (CROWs) in the form of InP-InGaAsP Fabry-Perot resonator arrays. We discuss the fabrication of these devices and present measurements of the transmission spectra.
Choi, John M.   +5 more
core   +1 more source

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