71 research outputs found
Curriculum for informatics agricultural engineers and economists. Is this a good way to train agri-informatics experts?
The Council of the University of Debrecen accepted the proposal to establish a five -year degree course in agri- infor matics, in October 2001. This proposal had been accepted by the Ministry of Education, and we forwarded it to the Hungarian Accreditation Committee, which also accepted it.
The course is run by the Agricultural Economics and Rural Development Faculty, the Agriculture Agronomy Faculty and the Institute of Mathematics and Informatics, from the Faculty of Arts and Sciences. This course was created to meet demand from the Hungarian agri-food sector, governmental offices and institutes, which all need a wide range of computerized tools and systems. Actual teaching will begin in the 2003/2004 school year. The percentage of computer sciences knowledge offered in this program is approximately 40 percent
Munkapiaci rugalmatlanság és a munkanélküliségi idősorok egységgyök-tulajdonsága: problémafelvetés
The article is a review of the literature concerning the time series of the unemployment rate, and of the economic explanations behind the tests of these time series. We seek to identify the theoretical explanations behind a possible unit root in unemployment time series. We argue that the main difficulty faced by these unit root tests is the change in labor market institutions. The ffects of institutional changes make the traditional tests rather weak, while the panel unit root tests oversimplify the economics of the question. Our conclusion is that the possible application of the tests developed theoretically for nearly unit root processes seems to offer a way out of this dilemma.
Journal of Economic Literature (JEL) classifications: C22, E24A cikk a munkanĂ©lkĂĽlisĂ©g idĹ‘sorainak vizsgálatára vonatkozĂł irodalmat, illetve az e tesztek mögött meghĂşzĂłdĂł közgazdasági magyarázatokat tekinti át. Választ keresĂĽnk arra, hogy mi az elmĂ©leti alapja a munkanĂ©lkĂĽlisĂ©g idĹ‘soraiban az egysĂ©ggyök lĂ©tezĂ©sĂ©t kutatĂł teszteknek. Amellett Ă©rvelĂĽnk, hogy az e tesztek elĹ‘tt állĂł egyik fĹ‘ nehĂ©zsĂ©get a munkapiaci intĂ©zmĂ©nyrendszer megváltozása jelenti. A hagyományos egysĂ©ggyöktesztek emiatt meglehetĹ‘sen gyengĂ©vĂ© válnak, mĂg a panel egysĂ©ggyöktesztek a kĂ©rdĂ©s közgazdasági oldalát egyszerűsĂtik le. KövetkeztetĂ©sĂĽnk, hogy az Ăşgynevezett közel egysĂ©ggyök-folyamatokra vonatkozĂł tesztek egyfajta kiutat jelenthetnek.
Journal of Economic Literature (JEL) kĂłd: C22, E2
IdĹ‘sorok analĂzise Ă©s sztochasztikus fraktál modellek tanulmányozása alkalmazásokkal = Time series analysis and fractal models with applications
Frakcionális Ornstein-Uhlenbeck lepedĹ‘ tulajdonságait vizsgáltuk abbĂłl a szempontbĂłl, hogy olyan modellt konstruáljunk, aminek spektruma az origĂł környezetĂ©ben nem izotrĂłp mĂłdon viselkedik. A LĂ©vy-Flight-ok (közel stabilis LĂ©vy-folyamtok) fontos szerepet játszanak a nem Gauss jelensĂ©gek vizsgálatában. Egzakt eredmĂ©nyeket bizonyĂtottunk a LĂ©vy-Flight-ok aszimptotikus egĂ©sz Ă©s tört rendű momentumaira, ezzel összefĂĽggĂ©sben sikerĂĽlt kimutatni ezek multi-fraktál tulajdonságát. A nemlineáris vektor Ă©rtĂ©kű regressziĂł problĂ©májával foglalkoztunk, amikor a megfigyelĂ©sek hibája stacionárius eloszlásĂş. Egzakt formulát adtunk meg a paramĂ©ter becslĂ©sek aszimptotikus szĂłrásmátrixára, Ă©s alkalmaztuk eredmĂ©nyĂĽnket valĂłdi adatokra is. A magfĂĽggvĂ©nyes sűrűsĂ©gfĂĽggvĂ©ny becslĂ©s aszimptotikus normalitását bizonyĂtottuk Ăşgy, hogy a mezĹ‘t egyre nagyobb tartományon figyeljĂĽk meg, de közben megfigyelĂ©si helyeket is sűrĂtjĂĽk. KiderĂĽl, hogy az aszimptotikus kovariancia fĂĽgg a sávszĂ©lessĂ©g Ă©s az osztĂłpontok távolságának arányátĂłl. | The Fractional Ornstein-Uhlenbeck sheet is investigated, non-isotropic stationary model is constructed and applied for real data. We showed that LĂ©vy-Flights are fractals and proved asymptotical formulae for moments and cumulants.with integer and fractal order. Functional limit theorems are proved for a sequence of Galton-Watson processes with immigration, where the offspring mean tends to its critical value 1 under weak conditions for the variances of offspring and immigration processes. Int he limit theorems the norming factors depend on these variances. We proved the asymptotic normality of the kernel density estimates in 2D. The asymptotic covariance is shown to be dependent of the ratio of the window size and distance between point on the lattice. The nonlinear multiple regression with stationary errors is investigated. A clear formula is given for the asymptotic variance of the parameter estimator and it is applied for the identification of fitting models to real data
EvangĂ©likus TemplomĂ©pĂtĂ©szeti Ă©s EgyházművĂ©szeti Kutatások - Kelet - Magyarország = Researches on the History of Art and Architecture of Hungary's Lutheran Churches - Eastern Hungary
A kutatás Kelet-Magyarország evangĂ©likus templomainak felmĂ©rĂ©sĂ©t tűzte ki cĂ©lul. 2004-ben szervezĂ©si okok miatt elĹ‘ször Budapest nĂ©hány evangĂ©likus templomával (12 emlĂ©k) kezdtĂĽk, majd 2005-ben a bĂ©kĂ©si, illetve egyes csongrádi Ă©s szolnok megyei templomok felmĂ©rĂ©sĂ©vel folytattuk (összesen 38 Ă©pĂĽlet). 2006-ban Borsod-AbaĂşj-ZemplĂ©n Ă©s Szabolcs-Szatmár-Bereg megye összesen 30 templomát dolgoztuk fel. A felmĂ©rĂ©s eredmĂ©nyeit adattárban rögzĂtettĂĽk. Az elĹ‘zetes elemzĂ©s során megállapĂthatĂł, hogy a terĂĽlet evangĂ©likus templomĂ©pĂtĂ©szete karakterĂ©ben heterogĂ©n: jelentĹ‘s Ă©s művĂ©szi Ă©rtĂ©kekben gazdag egyedi városi templomok (BĂ©kĂ©scsaba, Miskolc, NyĂregyháza, Orosháza, Szarvas Ă“- Ă©s Ăšjtemplom) mellett az egykori mezĹ‘városok, falvak templomĂ©pĂtĂ©szete is rendkĂvĂĽl formagazdag. A városi templomok tĂ©rszervezĂ©si sajátosságai az eurĂłpai protestáns hagyományokat, a hugenotta templomĂ©pĂtĂ©szetbĹ‘l származtatott elveket követik. A keleti rĂ©giĂł templomai között számos XIX. századi Ă©s XX. század eleji alkotás találhatĂł, amelyek a historizálĂł Ă©s modern hazai evangĂ©likus templomĂ©pĂtĂ©szet jelentĹ‘s pĂ©ldái. Az egykori ipar- Ă©s bányatelepek számára is jelentĹ‘s emlĂ©kek Ă©pĂĽltek. A felmĂ©rĂ©sek során közel 500 felmĂ©rĂ©si vázlat, 300 tervrajz Ă©s 6000 fotĂł kĂ©szĂĽlt. A felmĂ©rĂ©sek teljes mĂ©lysĂ©gű feldolgozását a hamarosan befejezĹ‘dĹ‘ program lezárásával, az ország összes templomának felmĂ©rĂ©se után tervezzĂĽk. A kutatás befejezĂ©sĂ©hez a központi rĂ©giĂł (a fĹ‘város Ă©s Pest megye) felmĂ©rĂ©sĂ©t kell elvĂ©gezni. | The research aimed to record and analyse the Lutheran churches of Eastern Hungary. The project first focused on some of the Lutheran churches of Budapest (12 churches) in 2004, then in the following year 38 churches of BĂ©kĂ©s, Csongrád and Heves county and in 2006 30 churches of Borsod-AbaĂşj-ZemplĂ©n and Szabolcs-Szatmár-Bereg counties have been recorded and analysed. The results are collected in a database manuscript. By the preliminary analysis it can be ascertained that the Lutheran churches of the researched area are quite heterogenous in character: there are important and unique town churches rich in artistis values (BĂ©kĂ©scsaba, Miskolc, NyĂregyháza, Orosháza, Szarvas) but the churches of the former market-towns and villages have also a rich variety of architectural forms. The spatial layout of the town churches follow the protestant traditions in Europe, especially the principles derived from Huguenot church architecture. There are also important lutheran churches of the 19. and 20. centuries representing Historicism and the Modern Movement. The churches built for the former industrial and mining villages are also of big importance. The surveys resulted about 500 measuring skethes, 300 architectural plans and about 6000 photos. The full analysis will be elaborated after the coming end of the programme by recording and measuring all the Lutheran churches of Hungary
The effect of preoperative suggestions on perioperative dreams and dream recalls after administration of different general anesthetic combinations: a randomized trial in maxillofacial surgery
Background
Images evoked immediately before the induction of anesthesia with the help of suggestions may influence dreaming during anesthesia.The aim of the study was to assess the incidence of evoked dreams and dream recalls by employing suggestions before induction of anesthesia while administering different general anesthetic combinations.
Methods
This is a single center, prospective randomized including 270 adult patients scheduled for maxillofacial surgical interventions.Patients were assigned to control, suggestion and dreamfilm groups according to the psychological method used. According to the anesthetic protocol there were also three subgroups: etomidate & sevoflurane, propofol & sevoflurane, propofol & propofol groups. Primary outcome measure was the incidence of postoperative dreams in the non-intervention group and in the three groups receiving different psychological interventions. Secondary endpoint was to test the effect of perioperative suggestions and dreamfilm-formation training on the occurrance of dreams and recallable dreams in different general anesthesiological techniques.
Results
Dream incidence rates measured in the control group did not differ significantly (etomidate & sevoflurane: 40%, propofol & sevoflurane: 26%, propofol & propofol: 39%). A significant increase could be observed in the incidence rate of dreams between the control and suggestion groups in the propofol & sevoflurane (26%-52%) group (p = 0.023). There was a significant difference in the incidence of dreams between the control and dreamfilm subgroup in the propofol & sevoflurane (26% vs. 57%), and in the propofol & propofol group (39% vs.70%) (p = 0.010, and p = 0.009, respectively). Similar to this, there was a significant difference in dream incidence between the dreamfilm and the suggestion subgroups (44% vs. 70%) in the propofol & propofol group (p = 0.019). Propofol as an induction agent contributed most to dream formation and recalls (chi2-test p value: 0.005). The content of images and dreams evoked using suggestions showed great agreement using all three anesthetic protocols.
Conclusion
The psychological method influenced dreaming during anesthesia. The increase of the incidence rate of dreams was dependent on the anesthetic agent used, especially the induction agent.
The study was registered in ClinicalTrials.gov. Identifier: NCT01839201
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