Results 31 to 40 of about 1,382,662 (294)

Retrospective Analysis of Wood Anatomical Traits Reveals a Recent Extension in Tree Cambial Activity in Two High-Elevation Conifers [PDF]

open access: yes, 2017
The study of xylogenesis or wood formation is a powerful, yet labor intensive monitoring approach to investigate intra-annual tree growth responses to environmental factors.
Angela L. Prendin   +5 more
core   +2 more sources

Critical Phenomena in Light–Matter Systems with Collective Matter Interactions

open access: yesEntropy, 2022
We study the quantum phase diagram and the onset of quantum critical phenomena in a generalized Dicke model that includes collective qubit–qubit interactions.
Ricardo Herrera Romero   +2 more
doaj   +1 more source

Long-term rearrangement of retinal structures in a novel mutation of X-linked retinoschisis [PDF]

open access: yes, 2017
The aim of the present study was to report a novel mutation in the retinoschisin 1 (RS1) gene in a Caucasian family affected by X-linked juvenile retinoschisis (XLRS) and to describe the long-term modification of retinal structure.
Colavito, Davide   +7 more
core   +1 more source

Migraine aura-like headache in occipital lobe brain tumors [PDF]

open access: yesRomanian Journal of Neurology, 2019
Background. Headache is a common symptom in brain tumors. In agreement with the International Headache Society, tumor headache belongs to the headache attributed to neoplasia. It has nonspecific characteristics regarding the type of pain that is diffused
Domenico Chirchiglia   +2 more
doaj   +1 more source

Dual characterization of critical fluctuations: Density functional theory & nonlinear dynamics close to a tangent bifurcation

open access: yes, 2017
We improve on the description of the relationship that exists between critical clusters in thermal systems and intermittency near the onset of chaos in low-dimensional systems.
Riquelme-Galvan, M., Robledo, A.
core   +1 more source

Limit cycles in the presence of convection, a first order analysis [PDF]

open access: yes, 2006
We consider a diffusion model with limit cycle reaction functions. In an unbounded domain, diffusion spreads pattern outwards from the source. Convection adds instability to the reaction-diffusion system.
Flach, E. H., Norbury, John, Schnell, S.
core   +1 more source

Spin-gap effect on resistivity in the t-J model

open access: yes, 1999
We calculate the spin-gap effect on dc resistivity in the t-J model of high-$T_{\rm c}$ cuprates by using the Ginzburg-Landau theory coupled with a gauge field as its effective field theory to get $\rho(T) \propto T \{1-c\:(T^* -T)^d \}$, where $T^*$ is ...
Anderson P. W.   +30 more
core   +1 more source

Total neoadjuvant therapy in early-onset versus average-onset locally advanced rectal cancer: patient characteristics and tolerance of therapy☆

open access: yesESMO Gastrointestinal Oncology
Background: Patients with early-onset (EO, age
M.L. Conces   +23 more
doaj   +1 more source

Charge distribution and electroluminescence in cross-linked polyethylene under dc field [PDF]

open access: yes, 2001
The intent of this paper is to cross-correlate the information obtained by space charge distribution analysis and electroluminescence (EL) detection in cross-linked polyethylene samples submitted to dc fields, with the objective to make a link between ...
A See   +22 more
core   +1 more source

More Than Spikes: On the Added Value of Non-linear Intracranial EEG Analysis for Surgery Planning in Temporal Lobe Epilepsy

open access: yesFrontiers in Neurology, 2022
Epilepsy surgery can be a very effective therapy in medication refractory patients. During patient evaluation intracranial EEG is analyzed by clinical experts to identify the brain tissue generating epileptiform events.
Michael Müller   +4 more
doaj   +1 more source

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