Results 1 to 10 of about 412,394 (293)

Geographic distribution notes on Trimetopon barbouri Dunn 1930 from western Panama [PDF]

open access: yesCheck List, 2013
We document the first records of the small colubrid snake Trimetopon barbouri Dunn, 1930, from Coclé Province, Republic of Panama. Comparisons with the type description are presented for one specimen.
Julie Ray   +4 more
doaj   +3 more sources

Estimation of the net influx rate Ki and the cerebral metabolic rate of glucose MRglc using a single static [18F]FDG PET scan in rats

open access: yesNeuroImage, 2021
Since accurate quantification of 2-deoxy-2–18F-fluoro-D-glucose ([18F]FDG) positron emission tomography (PET) requires dynamic acquisition with arterial input function, more practical semi-quantitative (static) approaches are often preferred.
Daniele Bertoglio   +5 more
doaj   +1 more source

Pairwise-Covariance Multi-view Discriminant Analysis for Robust Cross-View Human Action Recognition

open access: yesIEEE Access, 2021
Human action recognition (HAR) under different camera viewpoints is the most critical requirement for practical deployment. In this paper, we propose a novel method that leverages successful deep learning-based features for action representation and ...
Hoang-Nhat Tran   +5 more
doaj   +1 more source

A New Miniaturized Gas Sensor Based on Zener Diode Network Covered by Metal Oxide

open access: yesMicromachines, 2021
The development of “portable, low cost and low consumption” gas microsensors is one of the strong needs for embedded portable devices in many fields such as public domain.
Vignesh Gunasekaran   +6 more
doaj   +1 more source

Accurate image derived input function in [18F]SynVesT-1 mouse studies using isoflurane and ketamine/xylazine anesthesia

open access: yesEJNMMI Physics, 2023
Background Kinetic modeling in positron emission tomography (PET) requires measurement of the tracer plasma activity in the absence of a suitable reference region.
Alan Miranda   +3 more
doaj   +1 more source

Sapap3 deletion causes dynamic synaptic density abnormalities: a longitudinal [11C]UCB-J PET study in a model of obsessive–compulsive disorder-like behaviour

open access: yesEJNMMI Research, 2020
Background Currently, the evidence on synaptic abnormalities in neuropsychiatric disorders—including obsessive–compulsive disorder (OCD)—is emerging. The newly established positron emission tomography (PET) ligand ((R)-1-((3-((11)C-methyl-(11)C)pyridin-4-
Dorien Glorie   +5 more
doaj   +1 more source

Encoding Capacity Enhancement for Chipless RFID Tag Using Resonant Frequency Placement

open access: yesIEEE Access, 2023
In this study, a novel encoding approach for chipless radio frequency identification (RFID) tags is proposed. This tag is designed with $N$ resonant elements, each of which can be parameterized to resonate at $M$ individual desired frequencies ...
Cong-Cuong Le   +3 more
doaj   +1 more source

Conceptualizing “Filter-ing”: Affordances, Context Collapse, and the Social Self Online

open access: yesInternational Journal of Communication, 2022
Our article advances filter-ing as a vital affordance to understand how and which aspects of social lives dynamically manifest (or are excluded) from online settings.
Saesha Kini   +2 more
doaj   +2 more sources

Range extension and natural history observations of a rare Panamanian snake, Geophis bellus Myers, 2003 (Colubridae: Dipsadinae) [PDF]

open access: yesCheck List, 2015
The fossorial snake Geophis bellus is a small Panamanian endemic previously known only from the holotype. Here we report additional specimens, which greatly expand the known range of the species ca.
Luis Elizondo Lara   +3 more
doaj   +3 more sources

Identification of pre-synaptic density networks using [11C]UCB-J PET imaging and ICA in mice

open access: yesNeuroImage, 2022
Background: Synaptic vesicle glycoprotein 2A (SV2A) is a vesicle glycoprotein involved in neurotransmitter release. SV2A is located on the pre-synaptic terminals of neurons and visualized using the radioligand [11C]UCB-J and positron emission tomography (
Jordy Akkermans   +4 more
doaj   +1 more source

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