Search results for " state"
showing 10 items of 5973 documents
Parietal Cortex Connectivity as a Marker of Shift in Spatial Attention Following Continuous Theta Burst Stimulation
2021
Non-invasive brain stimulation is a useful tool to probe brain function and provide therapeutic treatments in disease. When applied to the right posterior parietal cortex (PPC) of healthy participants, it is possible to temporarily shift spatial attention and mimic symptoms of spatial neglect. However, the field of brain stimulation is plagued by issues of high response variability. The aim of this study was to investigate baseline functional connectivity as a predictor of response to an inhibitory brain stimulation paradigm applied to the right PPC. In fourteen healthy adults (9 female, aged 24.8 ± 4.0 years) we applied continuous theta burst stimulation (cTBS) to suppress activity in the …
Direct measurement of the mass difference of $^{72}$As-$^{72}$Ge rules out $^{72}$As as a promising $\beta$-decay candidate to determine the neutrino…
2021
We report the first direct determination of the ground-state to ground-state electron-capture $Q$-value for the $^{72}$As to $^{72}$Ge decay by measuring their atomic mass difference utilizing the double Penning trap mass spectrometer, JYFLTRAP. The $Q$-value was measured to be 4343.596(75)~keV, which is more than a 50-fold improvement in precision compared to the value in the most recent Atomic Mass Evaluation 2020. Furthermore, the new $Q$-value was found to be 12.4(40)~keV (3.1 $\sigma$) lower. With the significant reduction of the uncertainty of the ground-state to ground-state $Q$-value value combined with the level scheme of $^{72}$Ge from $\gamma$-ray spectroscopy, we confirm that th…
On a nonlinear Schrödinger equation for nucleons in one space dimension
2021
We study a 1D nonlinear Schrödinger equation appearing in the description of a particle inside an atomic nucleus. For various nonlinearities, the ground states are discussed and given in explicit form. Their stability is studied numerically via the time evolution of perturbed ground states. In the time evolution of general localized initial data, they are shown to appear in the long time behaviour of certain cases.
Pattern of interpersonal problems and mood states in the assessment of treatment-seeking-obese individuals
2008
Terroryzm islamski a bezpieczeństwo globalne
2016
Gwałtowny wzrost liczby zamachów terrorystycznych na przełomie XX i XXI w. w wymiarze międzynarodowych wyraźnie wskazuje na zwiększenie aktywności ugrupowań terrorystycznych o charakterze religijnym, który kojarzony był z ugrupowaniami terrorystycznymi o rodowodzie islamskim. Aktywność tych ugrupowań była ukierunkowana na przeprowadzanie różnego typu ataków w wielu częściach świata, co w naturalny sposób odczytane było jako prowadzenie działań terrorystycznych w skali globalnej. Z jednej strony ataki terrorystyczne powodowały liczne ofiary wśród ludności cywilnej oraz ogromne straty materialne, z drugiej fundamentaliści islamscy osiągnęli inny bardzo ważny dla nich cel propagandowy – wywoła…
Prezidenta Džo Baidena inugurācijas dienas tiešsaistes ziņu multimodālā analīze
2022
Amerikas Savienoto Valstu prezidenta inaugurācija ir viens no visvairāk dokumentētajiem notikumiem pasaulē, kuru plaši apraksta tiešsaistes mediju avoti. Ņemot vērā notikuma nozīmi un tiešsaistes ziņu lomu informācijas nodošanā mūsdienās, šī pētījuma mērķis bija parādīt lingvistisko un vizuālo līdzekļu integratīvo lomu nozīmes veidošanā, attēlojot Amerikas Savienoto Valstu prezidenta Džo Baidena inaugurāciju kā svarīgu notikumu tiešsaistes ziņās. Lai sasniegtu izvirzīto mērķi, tika apkopots un analizēts ziņu rakstu korpuss, kas publicēts dažādās starptautiskās ziņu vietnēs, izmantojot lingvistisko un vizuālo līdzekļu modeli un multimodālo diskursa analīzi. Rezultāti atklāja, ka izmantotie v…
Joke’s on You : So-called undocumented students in the US
2018
This chapter focuses on the experience of undocumented college students in the USA. While K‐12 education has been opened to undocumented students, at least on paper, since the landmark case Plyler vs. Doe, college education remains a highly precarious terrain for undocumented students, which offers little to no legal protection. Within the United States, the situation of undocumented college students differs greatly among individual states. This chapter provides an overview of national‐level policies or nationally relevant work in the area, as well as insights into some successful local initiatives. peerReviewed
Photoluminescence time decay of surface oxygen deficient centers in un‐doped and Ge‐doped silica
2005
We report a study of the emission decay from the singlet excited state of two fold coordinated Si and Ge centers stabilized on the surface of silica and Ge-doped silica. The PL lifetimes are of the order of nanoseconds and increase on decreasing the temperature. The results suggest that, for the surface centers, the phonon assisted intersystem-crossing process linking the excited states affects the decay rates, is effective down to low temperatures and is distributed because of the inhomogeneity of the defects. (© 2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
Internal conversion from excited electronic states of 229Th ions
2017
The process of internal conversion from excited electronic states is investigated theoretically for the case of the vacuum-ultraviolet nuclear transition of 229 Th . Due to the very low transition energy, the 229 Th nucleus offers the unique possibility to open the otherwise forbidden internal conversion nuclear decay channel for thorium ions via optical laser excitation of the electronic shell. We show that this feature can be exploited to investigate the isomeric state properties via observation of internal conversion from excited electronic configurations of Th + and Th 2 + ions. A possible experimental realization of the proposed scenario at the nuclear laser spectroscopy facility IGISO…
The Recovery of the Optimal Damping Constant by the MRF Damper
2009
In this paper was studied a method to analyze the recovering of optimal damping constant because of temperature increasing in a shock absorber. The increasing on temperature leads to decreasing that constant by mean dynamic viscosity such to modify the dynamic behavior of a 2DOF system built-up by sprung and unsprung mass. A MagnetoRheological damper was designed according with the desired optimal damping constant once fixed temperature design. It was seen that the increasing of temperature this constant is lost. As MagnetoRheological-Fluids allows us to increase the viscosity, we use a control signal by a state feedback of reduced order to create a such magnetic induction field to recover …