Search results for "TAU"
showing 10 items of 4585 documents
L’antica tradizione produttiva, il restauro e la manutenzione delle campane della Fonderia Virgadamo a Burgio, in Sicilia
2015
La percezione della città storica è sempre stata segnata dalla presenza dei campanili, uno dei segni architettonici più rilevanti nell’identificazione di un edificio sacro. Oltre a segnare il paesaggio, il campanile, attraverso il suono delle campane, scandisce lo scorrere del tempo, annuncia gli accadimenti e richiama le comunità di fedeli alla preghiera. La campane fanno parte del patrimonio culturale locale ed il loro suono è un bene che appartiene alla collettività. A Burgio, in Sicilia, l’antica tradizione produttiva delle campane di bronzo sopravvive da oltre cinque secoli, preservata e tramandata da generazione in generazione nella fonderia della famiglia Virgadamo. Le realizzazioni …
Isotopic Effect on the Kinetics of the Belousov-Zhabotinsky Reaction
2007
In this work we present results about the deuterium isotope effect on the global kinetics of a Belousov-Zhabotinsky reaction in batch conditions. A nonlinear dependence of the Induction Period upon the percentage of deuterated reactants was found. The isotopic effect on the bromination reaction of malonic acid was evaluated.
Theoretical absorption and emission spectra of 1H- and 2H-benzotriazole
2003
Excitation energies, dipole moments, and transition properties for the lowest-lying 1(π, π*) and 1(n, π*) electronic states of two benzotriazole tautomers have been studied at the complete active space (CAS) SCF and multiconfigurational second-order perturbation (CASPT2) levels. With these results, the UV absorption spectra of 1H- and 2H-benzotriazole were first described individually, and then they were considered simultaneously in order to better understand the experimental, observed spectrum of benzotriazole. Aspects of the fluorescence of the compound have been also analyzed. The spectrum of benzotriazole is finally related to those of other azo-compounds.
LU Bibliotēkas Fizikas un matemātikas fakultātes bibliotēkas novērtējums tās lietotāju skatījumā: aptaujas rezultāti
2011
Latvijas Universitātes (LU) Bibliotēkas Fizikas un matemātikas fakultātes bibliotēkas attīstības nolūkos studenti, pasniedzēji un visi interesenti 2010. gadā no maija līdz jūlijam tika aicināti piedalīties aptaujā par bibliotēkas pakalpojumiem, pieejamību un apkalpošanas kultūru. Aptauja piedalījās 104 respondenti, tā sastāvēja no 14 jautājumiem un bija aizpildāma elektroniski LU portālā. Aptaujas mērķis bija uzzināt LU Bibliotēkas Fizikas un matemātikas fakultātes bibliotēkas lietotāju viedokli par bibliotēkas darbību pakalpojumu kvalitātes uzlabošanas nolūkā. LU Bibliotēkas Fizikas un matemātikas fakultātes bibliotēkas krājumu veido mācību un zinātniskā literatūra: fizikā, matemātikā, ast…
LU abonēto e-resursu izmantošana un vajadzības: 2012. gada statistikas datu un aptaujas "Elektroniskie resursi LU Bibliotēkā" rezultātu analīze
2013
Ziņojums sniegts LU 71. konferences Bibliotēkzinātnes un informācijas zinātnes sekcijas sēdē, 31.01.2013.
Profesors Kārlis Počs: biobibliogrāfiskais rādītājs
1997
Saturs: Priekšvārds. Profesors Kārlis Počs./ A. Straume. Dr.hist., LU Vēstures un filozofijas fakultātes docents/ Profesora Kārļa Poča publicētie darbi. (1965.-1996.) Profesora Kārļa Poča rediģētie darbi un izdevumi, par kuriem atbildīgs profesors. Raksti par profesoru Kārli Poču. Profesora K. Poča darbu alfabētiskais rādītājs. Personu rādītājs.
Mammal assemblage composition predicts global patterns in emerging infectious disease risk
2021
Abstract As a source of emerging infectious diseases, wildlife assemblages (and related spatial patterns) must be quantitatively assessed to help identify high‐risk locations. Previous assessments have largely focussed on the distributions of individual species; however, transmission dynamics are expected to depend on assemblage composition. Moreover, disease–diversity relationships have mainly been studied in the context of species loss, but assemblage composition and disease risk (e.g. infection prevalence in wildlife assemblages) can change without extinction. Based on the predicted distributions and abundances of 4466 mammal species, we estimated global patterns of disease risk through …
Design and validation of a wireless Body Sensor Network for integrated EEG and HD-sEMG acquisitions
2022
Sensorimotor integration is the process through which the human brain plans the motor program execution according to external sources. Within this context, corticomuscular and corticokinematic coherence analyses are common methods to investigate the mechanism underlying the central control of muscle activation. This requires the synchronous acquisition of several physiological signals, including EEG and sEMG. Nevertheless, physical constraints of the current, mostly wired, technologies limit their application in dynamic and naturalistic contexts. In fact, although many efforts were made in the development of biomedical instrumentation for EEG and High Density-surface EMG (HD-sEMG) signal ac…
H7, a protein kinase C inhibitor, increases the glutathione content of neuroblastoma cells
1992
AbstractIt is shown that the intracellular glutathione (GSH) concentration of neuroblastoma-2a cells in culture increases with a maximum at 24 h after starting treatment with 1-(5-isoquinolinylsulfonyl)-2-methylpiperazine (H7), an inhibitor of protein kinase C (PKC). Other inhibitors of this and other protein kinases, e.g. sphingosine, staurosporine, and HA 1004, at the concentrations tested, had a less marked or negligible effect on intracellular GSH concentration. 12-O-Tetradecanoylphorbol-13-acetate (TPA) was also tested and showed no significant effect 24 h after addition.
Structure-activity relationship of staurosporine analogs in regulating expression of endothelial nitric-oxide synthase gene.
2000
In human umbilical vein endothelial cells and in human umbilical vein endothelial cell-derived EA.hy 926 cells, staurosporine (Stsp) and its glycosidic indolocarbazole analogs 7-hydroxystaurosporine (UCN-01) and 4'-N-benzoyl staurosporine (CGP 41251) enhanced nitric-oxide synthase (NOS) III mRNA expression (analyzed by RNase protection assay), protein expression (determined by Western blot), and activity [measured by rat fetal lung fibroblast (RFL-6) reporter cell assay] in a concentration- and time-dependent manner. In contrast, the bisindolylmaleimide analogs GF 109203X, Ro 31-8220 and Go 6983 had no effect on NOS III expression, and Go 6976, a methyl- and cyanoalkyl-substituted nonglycos…