707 research outputs found
A XIII-as vĂ©ralvadási faktor A Ă©s B alegysĂ©gĂ©nek kapcsolĂłdásáért felelĹ‘s struktĂşrális elemek azonosĂtása a B alegysĂ©gben = Identification of the binding domain(s) involved in the binding with FXIII-A on FXIII-B
1. rFXIII-B. Máj cDNS könyvtárbĂłl klĂłnoztam a teljes hosszĂşságĂş FXIII-B cDNS-t Ă©s előállĂtottam a 2, 4, 6, 8 Sushi domĂ©nt tartalmazĂł mutánsokat. Az optimalizált expressziĂłs rendszer a COS-7-DEAE-dextrán kombináciĂł volt. A mĂ©diumbĂłl a rFXIII-t Ă©s mutánsait Ni-kromatográfiával rĂ©szlegesen tisztĂtottam nem denaturálĂł körĂĽlmĂ©nyek között. A fehĂ©rjĂ©kben a diszulfid hidak kialakultak Ă©s a rekombinánsok molekulasĂşlya jĂłl korrelált a várttal. A stabilitás vizsgálat során degradáciĂł nem volt kimutathatĂł. 2. rFXIII-A. A FXIII-A cDNS-t klĂłnoztam Ă©s pET vektorba inzertáltam. A benne levĹ‘ Shine-Dalgarno szekvenciát megszĂĽntettem. Az expressziĂłs kĂsĂ©rletek nem sikerĂĽltek. Ezután maltĂłz-kötĹ‘ fehĂ©rjĂ©vel fĂşziĂłban prĂłbáltam meg a rFXIII-A-t expresszálni, de sem peri- sem citoplazmatikus esetben nem sikerĂĽlt a rFXIII-A előállĂtása. Ezután a rFXIII-A esetĂ©ben is pcDNA emslĹ‘ rendszert használtam az expressziĂłra. Ni-oszlopon a sejtlizátumbĂłl törtĂ©nĹ‘ tisztĂtás után a rFXIII-A kimutathatĂł volt. 3. Az alegysĂ©gek kötĹ‘dĂ©sĂ©nek vizsgálata. A mikrolemezre rögzĂtett rFXIII-A-hoz hozzáadva a rFXIII-B-t Ă©s delĂ©ciĂłs mutánsait, minden esetben kaptam a kötĹ‘dĂ©sre utalĂł jelet, mely a lekötött rFXIII-A mennyisĂ©gĂ©nek fĂĽggvĂ©nye volt. FordĂtott esetben is hasonlĂł eredmĂ©nyt kaptam, azaz a lerögzĂtett rFXIII-B Ă©s delĂ©ciĂłs mutánsai a rFXIII-A-t kötik. Ez a megfigyelĂ©s mĂ©g további megerĹ‘sĂtĂ©st igĂ©nyel, de az eredmĂ©nyek arra utalnak, hogy a FXIII-B N-terminálisa vesz rĂ©szt a FXIII-A kötĂ©sben. | 1. rFXIII-B. The cDNA of FXIII-B was cloned from liver cDNA library and the deletion mutants containing 2, 4, 6 and 8 Sushi domains were generated. The optimized expression system used COS-7 cells and DEAE-dextran for transfection. For partial purification of the recombinants Ni-chromatography was used under mild conditions. Disulphide bridges were formed and the molecular weight of the recombinants correlated well with the calculated ones. No degradation was observed after prolonged storage period at 4°C. 2. rFXIII-A. The cDNA of FXIII-A was cloned and inserted into pET vector. Although the Shine-Dalgarno sequence was abolished, no rFXIII-A could be detected. After subloning into maltose-binding fusion system, rFXIII-A production was unsuccessful both in the periplasm and in the cytoplasm. Final attempt was to clone cDNA into pcDNA vector and express it in mammalian cell line. rFXIII-A could be detected from the cell lysate after partial purification on Ni-column. 3. Testing the binding of the subunits. When rFXIII-A was coated into the microplate and the rFXIII-B and its mutants were added, rFXIII-B-specific signal could be detected, which was proportionate to the amount of coated rFXIII-A. The reversed setting, where rFXIII-B and its mutants were coated yielded similar results. These observations, though preliminary, suggest that the N-terminal region of FXIII-B is responsible for the binding of FXIII-A
DeliberatĂv igazságosság. Erkölcs Ă©s politika a globális világban. = Deliberative Justice. Morality and Politics in the Age of Globalization
A nĂ©gy Ă©ves kutatási program eredetileg jelzett cĂ©lkitűzĂ©sĂ©t messze meghaladĂł elmĂ©leti eredmĂ©nyeket a 2005 novemberĂ©ben elkĂ©szĂĽlt Ă©s a L'Harmattan könyvkiadĂłnak mĂ©g ugyanabban a hĂłnapban átadott - a tervezett tanulmánykötet műfajával ellentĂ©tben - szisztematikus monográfia foglalja össze. Az "Igazságosság Ă©s politika" cĂmmel 2006 márciusában megjelenĹ‘, körĂĽlbelĂĽl 400 oldalas monográfia egymáshoz kapcsolĂłdĂł fĹ‘bb Ăşj eredmĂ©nyei az alábbiak: 1. A modern társadalomelmĂ©let Ăşj szakaszának, a politikai társadalomelmĂ©let kialakulásának, jellemzĹ‘inek, törtĂ©neti feltĂ©teleinek bemutatása. 2. A kibontakozĂł politikai társadalomelmĂ©let meghatározĂł vonásának, az erkölcsi-normatĂv problĂ©ma központi fontosságának a kiemelĂ©se. 3. Az igazságosságnak, mint a politikai legitimáciĂł erkölcsi-normatĂv elveinek a meghatározása. 4. Az igazságosság elmĂ©leti tárgyalásának Ăşj - az eddigi igazoláselmĂ©leti megközelĂtĂ©ssel szemben - megalapozás-elmĂ©leti stratĂ©giája rĂ©szletes kidolgozása. 5. Az igazságosság elveinek eredetien Ăşj elmĂ©leti meghatározása, mely önbecsĂĽlĂ©si igazságosságkĂ©nt a kurrens elmĂ©letekkel szemben alternatĂv igĂ©nnyel lĂ©p fel. | The final outgrowths of the implementation of the research program goes far beyond its original aims. At the end of the year 2005 the theoretical achievements were summarized in a comprehensive monograph of 400 pages which was handed over to the L'Harmattan Publisher. The probable date of publication will be at the end of March, 2006.
The main accomplishments of the monograph can be summarized as follows: 1. The description of the process, peculiarities and historical conditions which lead to the formation of a new period of the general social theory, to the develpoment of the political social theory. 2. Making clear, that the determinant elements of the political social theory are its moral and normative components 3. The definition of justice, as a set of moral and normative principles for political legitimation. 4. A new approach to the study of justice, which focuses to the theoretical and metodological problems of the theoretical foundation. 5. The definition of the genuinely new principles of justice, which can be called as the justice of self-respect. This could be considered, as a new concept in the recent theoretical diskussion
THE FORMATION OF SPHERICAL PARTICLES UNDER ABRASIVE CONDITIONS
The formation of spherical wear debris was investigated by an analytical ferrograph in
different machines. It was stated that the abrasive contamination in gear boxes, I.C.
engines and hydraulic systems is a contributor to the generation of spherical
particles. According to examinations carried out so far the spherical third body
formation can be created through joint plastic deformation of delaminated particles or
as a result of forming to supercooled liquid due to the collective effects of state
variables
DLF control for high efficiency grid connected PV converters
Nowadays there are several grid connected converters in the grid system. These grid connected converters are generally the converters of renewable energy sources, industrial four quadrant drives and other converters with DC link. These converters are connected to the grid through a three phase bridge. The standards prescribe the maximal harmonic emission which could be easily limited with high switching frequency. The high switching losses can be reduced to the half with the utilization of the well-known Flat-top modulation. The suggested DC Link Floating (DLF) control method is an extension of the Flat-top modulation with which the switching losses could be further reduced
Elektroreológiai elasztomer korongok külső elektromos tér hatására történő deformációjának vizsgálata: Investigation of deformation of electrorheological elastomer discs by external electric fields
The aim of our research was to examine different concentrations of barium titanate based on electrorheological (ER) elastomeric discs and to investigate the extent of their deformation due to external electric field. A laser sensor measuring system was set up for more exact measurements. As a result, the discs contracted to the outer space, the extent of which depended on the concentration of ER elastomeric filler. Further examination of the samples revealed a relationship between the barium titanate content and the amount of dielectric permittivity.
Kivonat
Munkánk során kĂĽlönbözĹ‘ koncentráciĂłjĂş bárium-titanát alapĂş elektroreolĂłgiai (ER) elasztomer korongokat kĂ©szĂtettĂĽnk Ă©s vizsgáltuk ezek kĂĽlsĹ‘ elektromos tĂ©r hatására bekövetkezĹ‘ deformáciĂłjának nagyságát. A megfelelĹ‘ mĂ©rĂ©sekhez egy lĂ©zerszenzoros mĂ©rĹ‘rendszert állĂtottunk össze. MegállapĂtottuk, hogy a korongok a kĂĽlsĹ‘ tĂ©r irányában kontrakciĂłt szenvednek, amelynek mĂ©rtĂ©ke fĂĽgg az ER elasztomer töltĹ‘anyag koncentráciĂłjátĂłl. A minták további vizsgálata során összefĂĽggĂ©st állĂtottunk fel a bárium-titanát tartalom Ă©s a dielektromos permittivitás nagyságára vonatkozĂłlag
3SC Control for high efficiency grid connected photovoltaic converters
Nowadays there are several grid connected converters in the grid system. These grid connected converters are generally the converters of renewable energy sources, industrial four quadrant drives and other converters with DC link. These converters are connected to the grid typically through a three phase IGBT bridge. The standards prescribe the permissible maximal harmonic emission and the maximal reactive current for the grid connected converters. For a converter working at nominal power these two prescriptions together mean almost unity power factor. The harmonic emission could be easily limited with high switching frequency and/or with large harmonic filters. Further financial viewpoints are the efficiency, the small size and weight. Comparing to traditional control these requirements can be simultaneously satisfied much better with the 3SC (three state control) method. At 3SC we utilize all the three allowed state of one arm of the IGBT bridge, i.e. upper part conducting, lower part conducting, none of the
m conducting
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