Search results for "SFE"
showing 10 items of 6127 documents
Population transfer, light storage, and superluminal propagation by bright-state adiabatic passage.
2008
E-supply Chain for International Technology Transfer
2001
This research (a review of current literature and empirical research) suggests that in order to make the e-supply chain for technology transfer of a Western country company (i.e., technology supplier) more efficient and effective than the conventional technology development and delivery approach, it should be considered as a process whose phases include planning, implementation and evaluation. This paper focuses only on the e-supply chain for technology package development for international technology transfer, and does not deal with all the aspects of IT-supported technology transfer process. peerReviewed
Engelska – resurs eller hot mot svenska språket på finska högstadiet? : lärarnas synpunkter på engelskans roll i svenskundervisning
2016
Tämän tutkielman tarkoitus on selvittää ruotsinopettajien mielipiteitä englannin kielen vaikutuksesta ja asemasta yläkoulun ruotsinopetuksessa. Tutkielmassa keskitytään erityisesti siihen voiko ruotsinopettajien mielestä englantia hyödyntää myös ruotsin opettamisessa ja jos voi, niin miten. Lisäksi tutkielmassa selvitetään kokevatko ruotsinopettajat englannin resurssina vai uhkana ruotsin kielelle. Tutkielma on toteutettu kyselytutkimuksena keväällä 2015 ja siihen osallistui 30 ruotsinopettajaa. Sähköinen kyselylomake sisälsi yhdeksän kysymystä, jotka olivat sekä avoimia kysymyksiä että monivalintoja. Materiaali on analysoitu pääasiassa kvantitatiivisin menetelmin, sillä tulokset esitetään …
Das ritual der unterwerfung Stefan Nemanjas unter Maunel I. Komnenos (1172)
2013
This article investigates the ceremonial of the subjection of the Serbian zupan Stefan Nemanja to the Byzantine emperor Manuel I Komnenos (1172) and compares it with similar events of the period in question. It argues for a strong influence of western forms of conflict resolution (?deditio?) in the ceremonial.
Assessing Transfer Entropy in cardiovascular and respiratory time series: A VARFI approach
2021
In the study of complex biomedical systems represented by multivariate stochastic processes, such as the cardiovascular and respiratory systems, an issue of great relevance is the description of the system dynamics spanning multiple temporal scales. Recently, the quantification of multiscale complexity based on linear parametric models, incorporating autoregressive coefficients and fractional integration, encompassing short term dynamics and long-range correlations, was extended to multivariate time series. Within this Vector AutoRegressive Fractionally Integrated (VARFI) framework formalized for Gaussian processes, in this work we propose to estimate the Transfer Entropy, or equivalently G…
Second harmonic ac polarography of strongly adsorbed electroactive species
1981
Abstract The second harmonic ac current is calculated for the case of a quasi-reversible surface redox system: both species are strongly adsorbed according to a Langmuir isotherm and the kinetics of the process are controlled by the electron transfer. The current is measured with a phase-sensitive detector and the variation of the in-phase and quadrature components vs. the frequency leads to the surface rate constant ks. The experimental results obtained for benzo-(c)cinnoline are in good agreement with the theoretical predictions and with the results of impedance measurements. The advantages of the two methods are compared.
Poliolefiny a środowisko
2002
Przedstawiono znaczenie, rozwój metod otrzymywania, kierunki zastosowania i perspektywy rozwoju poliolefin (polietylenu i polipropylenu), materiałów dominujących w światowej produkcji i zużyciu tworzyw sztucznych. Scharakteryzowano oddziaływania tych polimerów na środowisko, kolejno w etapie ich wytwarzania, wykorzystywania i utylizacji odpadów poużytkowych. Scharakteryzowano także kierunki badań prowadzonych w Instytucie Chemii Uniwersytetu Opolskiego w zakresie syntezy, charakterystyki, a przede wszystkim temo- i fotooksydacyjnej degradacji oraz starzenia atmosferycznego poliolefin.
Unifying Concepts for Ion-Induced Leakage Current Degradation in Silicon Carbide Schottky Power Diodes
2020
The onset of ion-induced reverse leakage current in SiC Schottky diodes is shown to depend on material properties, ion LET, and bias during irradiation, but not the voltage rating of the parts. This is demonstrated experimentally for devices from multiple manufacturers with voltage ratings from 600 V to 1700 V. Using a device with a higher breakdown voltage than required in the application does not provide increased robustness related to leakage current degradation, compared to using a device with a lower voltage rating. peerReviewed
Functional characterization of the human tRNA methyltransferases TRMT10A and TRMT10B
2020
Abstract The TRM10 family of methyltransferases is responsible for the N1-methylation of purines at position 9 of tRNAs in Archaea and Eukarya. The human genome encodes three TRM10-type enzymes, of which only the mitochondrial TRMT10C was previously characterized in detail, whereas the functional significance of the two presumably nuclear enzymes TRMT10A and TRMT10B remained unexplained. Here we show that TRMT10A is m1G9-specific and methylates a subset of nuclear-encoded tRNAs, whilst TRMT10B is the first m1A9-specific tRNA methyltransferase found in eukaryotes and is responsible for the modification of a single nuclear-encoded tRNA. Furthermore, we show that the lack of G9 methylation cau…
Eukaryotic rRNA Modification by Yeast 5-Methylcytosine-Methyltransferases and Human Proliferation-Associated Antigen p120.
2015
International audience; Modified nucleotide 5-methylcytosine (m(5)C) is frequently present in various eukaryotic RNAs, including tRNAs, rRNAs and in other non-coding RNAs, as well as in mRNAs. RNA: m(5)C-methyltranferases (MTases) Nop2 from S. cerevisiae and human proliferation-associated nucleolar antigen p120 are both members of a protein family called Nop2/NSUN/NOL1. Protein p120 is well-known as a tumor marker which is over-expressed in various cancer tissues. Using a combination of RNA bisulfite sequencing and HPLC-MS/MS analysis, we demonstrated here that p120 displays an RNA:m(5)C-MTase activity, which restores m(5)C formation at position 2870 in domain V of 25S rRNA in a nop2 Delta …