Részvétel A Magyarországi Középkori Latinság Szótára 6. kötetének szerkesztésében = Participation in the Editing of the Lexicon of Mediaeval Latin of Hungary

Pályázatom célja az MTA Ókortudományi Kutatócsoportjában készülő, ''A magyarországi középkori latinság szótárának'' munkálataiban való részvétel volt. Az összegyűjtött cédulaanyag egy részét lexikográfiailag értékeltem, értelmeztem, a különböző időszakokban, különböző kutatók által olykor eltérő koncepcióval egybegyűjtött anyagot összesítettem, majd az ily módon egyesített cédulákat az ''R'' betűig abc rendbe rakva elősegítettem a következő kötetek munkálatait. Az időközben felmerülő hiányosságok pótlásához Gregorius Gyöngyösi: Vitae c. műve kritikai kiadásának feldolgozásával, szóanyagának kicédulázásával járultam hozzá, amely ritka vagy egyedi jelentésben használt szavaival értékes forrásnak bizonyult. Az aktuálisan készülő ''M'' betűs kötetből elvégeztem a ''mediatrix'' főnévtől a ''memor'' főnévig terjedő szóanyag feldolgozását, a már betűrendbe szedett cédulákat jelentéstani kategóriák szerint csoportosítva, adataikat kronológiai sorrendbe téve és értelmezve, a cédulákon szereplő adatokat az eredeti forrásokkal összevetve. Végül az ily módon rendezett anyagot számítógépes formátumban rögzítettem, az elkészült szócikkek rögzítésénél a korábbi koncepciót követve, valamint gyakorlati javaslatokat téve esetleges további technikai fejlesztésekre is. Munkámmal hozzájárultam a magyarországi középkori latin nyelvhasználat értékes adatbázisának létrehozásához, segítve ezzel a rokon és társtudományok kutatóit is. | The purpose of the project was to participate in the work of the Dictionary of the Medieval Latin of Hungary in the Ókortudományi Kutatócsoport of MTA. The collected labels were lexicographywise evaluated and interpreted. I pooled the material aggregated at different times, by different researchers and sometimes according to different concepts. Afterwards I put the labels in alphabetic order up to ""r"", and promoted the work of the next volumes. The weaknesses emerging in the meantime were compensated by the annotation of the words of the critical edition of Gregorius Gyöngyösi: Vitae's, whose rare or unique words used in the report proved to be a valuable source. I processed the words from the noun 'mediatrix' to the noun 'memor' for the M-letter volume. Finally, I recorded this material in a systematic way in computer readable form, following the earlier concept. I proposed some additional technical developments too. My work contributed to the creation of a valuable database of the Hungarian medieval Latin language, helping the similar disciplines's researchers as well

TPB and the invasion of adaptive dynamics

Non peer reviewe

Construction of multiple trade-offs to obtain arbitrary singularities of adaptive dynamics

Evolutionary singularities are central to the adaptive dynamics of evolving traits. The evolutionary singularities are strongly affected by the shape of any trade-off functions a model assumes, yet the trade-off functions are often chosen in an ad hoc manner, which may unjustifiably constrain the evolutionary dynamics exhibited by the model. To avoid this problem, critical function analysis has been used to find a trade-off function that yields a certain evolutionary singularity such as an evolutionary branching point. Here I extend this method to multiple trade-offs parameterized with a scalar strategy. I show that the trade-off functions can be chosen such that an arbitrary point in the viability domain of the trait space is a singularity of an arbitrary type, provided (next to certain non-degeneracy conditions) that the model has at least two environmental feedback variables and at least as many trade-offs as feedback variables. The proof is constructive, i.e., it provides an algorithm to find trade-off functions that yield the desired singularity. I illustrate the construction of trade-offs with an example where the virulence of a pathogen evolves in a small ecosystem of a host, its pathogen, a predator that attacks the host and an alternative prey of the predator.Peer reviewe

Evolutionary suicide through a non-catastrophic bifurcation : adaptive dynamics of pathogens with frequency-dependent transmission

Evolutionary suicide is a riveting phenomenon in which adaptive evolution drives a viable population to extinction. Gyllenberg and Parvinen (Bull Math Biol 63(5):981-993, 2001) showed that, in a wide class of deterministic population models, a discontinuous transition to extinction is a necessary condition for evolutionary suicide. An implicit assumption of their proof is that the invasion fitness of a rare strategy is well-defined also in the extinction state of the population. Epidemic models with frequency-dependent incidence, which are often used to model the spread of sexually transmitted infections or the dynamics of infectious diseases within herds, violate this assumption. In these models, evolutionary suicide can occur through a non-catastrophic bifurcation whereby pathogen adaptation leads to a continuous decline of host (and consequently pathogen) population size to zero. Evolutionary suicide of pathogens with frequency-dependent transmission can occur in two ways, with pathogen strains evolving either higher or lower virulence.Peer reviewe

Joint evolution of dispersal and connectivity

Functional connectivity, the realized flow of individuals between the suitable sites of a heterogeneous landscape, is a prime determinant of the maintenance and evolution of populations in fragmented habitats. While a large body of literature examines the evolution of dispersal propensity, it is less known how evolution shapes functional connectivity via traits that influence the distribution of the dispersers. Here, we use a simple model to demonstrate that, in a heterogeneous environment with clustered and solitary sites (i.e., with variable structural connectivity), the evolutionarily stable population contains strains that are strongly differentiated in their pattern of connectivity (local vs. global dispersal), but not necessarily in the fraction of dispersed individuals. Also during evolutionary branching, selection is disruptive predominantly on the pattern of connectivity rather than on dispersal propensity itself. Our model predicts diversification along a hitherto neglected axis of dispersal strategies and highlights the role of the solitary sites-the more isolated and therefore seemingly less important patches of habitat-in maintaining global dispersal that keeps all sites connected.Peer reviewe