Search results for "Asma"
showing 10 items of 4204 documents
New composite materials made up of nanofibers and hydrogel as biomimetic scaffolds for human pluripotent stem cell culture
2014
Kakeksian mekanismit ja hoito
2022
Kakeksia on sairauden aiheuttama tila, jossa paino sekä luurankolihaksen ja rasvakudoksen määrä vähenevät ja toimintakyky heikkenee, eikä näitä oireita voida täysin kumota ravitsemuksen tuella. Kakeksiaa esiintyy erityisesti syöpäsairauksien yhteydessä. Se heikentää elämänlaatua, lisää kuolleisuutta ja hankaloittaa perustaudin hoitovasteen saavuttamista. Kakeksian patofysiologia tunnetaan vain osittain. Tärkeimpiä mekanismeja ovat yleistynyt tulehdusvaste, luurankolihaksen surkastuminen, rasvakudoksen aineenvaihdunnan muutokset ja hormonaalisen toiminnan häiriintyminen. Yksittäisiin tekijöihin vaikuttavat lääkitykset eivät tilan monitekijäisen patofysiologian vuoksi tehoa riittävästi, eikä …
Follow-up post natale in nati da madre con infezione certa da Toxoplasma gondii considerazioni sul management prenatale.
2005
The clinical management of perinatal toxoplasmosis involves a gynaecologist during pregnancy and a neonatologist after delivery. Then, in the absence of a uniform approach, early evaluation of infected infants requires a thorough long-term follow-up also in asymptomatic children, who have to be observed for at least one year due to unpredictable sequelae in later life. We retrospectively analyzed pregnancy management of 54 women with certain infection from Toxoplasma gondii (TG) and prospectively enrolled their infants to compare prenatal management with postnatal clinical outcome. All mothers with seroconversion for TG infection were from the Palermo area and were retrospectively analyzed,…
Vienšūnas parazīta Toxoplasma gondii sastopamība meža cūkās (Sus scrofa)
2021
Termiski nepietiekoši apstrādātas meža cūkas gaļas lietošana uzturā ir potenciāls Toxoplasma gondii invāzijas avots cilvēkiem. Zināšanas par T. gondii izplatību un sastopamību meža cūkās, dod iespēju apzināt riskus cilvēku veselībai un izstrādāt profilakses pasākumus stratēģijas. Pētījuma mērķis bija noteikt T. gondii sastopamību meža cūkās Latvijā un sakarības ciešumu starp T. gondii DNS un specifisko pret-T. gondii IgG antivielu klātbūtni meža cūkās. Pētījuma ietvaros tika izmantota seroloģiskā metode (ELISA) un divas T. gondii DNS izdalīšanas metodes – no hidrolīzes koncentrāta kopējā DNS izdalīšana un ar magnētiskām lodītēm specifiskā T. gondii DNS izdalīšana. Pēc sistemātiskās literatū…
Measurement of an Excess in the Yield of J/ψ at Very Low pT in Pb-Pb Collisions at √sNN = 2.76 TeV
2016
We report on the first measurement of an excess in the yield of J=ψ at very low transverse momentum (pT < 0.3 GeV=c) in peripheral hadronic Pb-Pb collisions at √sNN=2.76 TeV, performed by ALICE at the CERN LHC. Remarkably, the measured nuclear modification factor of J=ψ in the rapidity range 2.5 <y< 4 reaches about 7 (2) in the pT range 0–0.3 GeV=c in the 70%–90% (50%–70%) centrality class. The J=ψ production cross section associated with the observed excess is obtained under the hypothesis that coherent photoproduction of J=ψ is the underlying physics mechanism. If confirmed, the observation of J=ψ coherent photoproduction in Pb-Pb collisions at impact parameters smaller than twice the nu…
PROPAGATING INTERFACES IN A TWO-LAYER BISTABLE NEURAL NETWORK
2006
The dynamics of propagating interfaces in a bistable neural network is investigated. We consider the network composed of two coupled 1D lattices and assume that they interact in a local spatial point (pin contact). The network unit is modeled by the FitzHugh–Nagumo-like system in a bistable oscillator mode. The interfaces describe the transition of the network units from the rest (unexcited) state to the excited state where each unit exhibits periodic sequences of excitation pulses or action potentials. We show how the localized inter-layer interaction provides an "excitatory" or "inhibitory" action to the oscillatory activity. In particular, we describe the interface propagation failure a…
Pinning of a kink in a nonlinear diffusive medium with a geometrical bifurcation: Theory and experiments
2004
International audience; We study the dynamics of a kink propagating in a Nagumo chain presenting a geometrical bifurcation. In the case of weak couplings, we define analytically and numerically the coupling conditions leading to the pinning of the kink at the bifurcation site. Moreover, real experiments using a nonlinear electrical lattice confirm the theoretical and numerical predictions.
Interaction of mushroom tyrosinase with aromatic amines, o-diamines and o-aminophenols
2004
3-Amino-L-tyrosine was found to be a substrate of mushroom tyrosinase, contrary to what had previously been reported in the literature. A series of amino derivatives of benzoic acid were tested as substrates and inhibitors of the enzyme. 3-Amino-4-hydroxybenzoic acid, 4-amino-3-hydroxybenzoic acid and 3,4-diaminobenzoic acid were oxidized by this enzyme, as previously reported for Neurospora crassa tyrosinase, but 4-aminobenzoic acid and 3-aminobenzoic acid were not. Interestingly, 3-amino-4-hydroxybenzoic acid was oxidized five times faster than 4-amino-3-hydroxybenzoic acid, confirming the importance of proton transfer from the hydroxyl group at C-4 position. All compounds inhibited the m…
Review of proton and nuclear shape fluctuations at high energy
2020
Determining the inner structure of protons and nuclei in terms of their fundamental constituents has been one of the main tasks of high energy nuclear and particle physics experiments. This quest started as a mapping of the (average) parton densities as a function of longitudinal momentum fraction and resolution scale. Recently, the field has progressed to more differential imaging, where one important development is the description of the event-by-event quantum fluctuations in the wave function of the colliding hadron. In this Review, recent developments on the extraction of proton and nuclear transverse geometry with event-by-event fluctuations from collider experiments at high energy is …
Quantum Correlation Dynamics in Controlled Two-Coupled-Qubit Systems
2020
We study and compare the time evolutions of concurrence and quantum discord in a driven system of two interacting qubits prepared in a generic Werner state. The corresponding quantum dynamics is exactly treated and manifests the appearance and disappearance of entanglement. Our analytical treatment transparently unveils the physical reasons for the occurrence of such a phenomenon, relating it to the dynamical invariance of the X structure of the initial state. The quantum correlations which asymptotically emerge in the system are investigated in detail in terms of the time evolution of the fidelity of the initial Werner state.