Fumagillin, an efficacious drug against renal sphaerosporosis of the common carp Cyprinus carpio

At present no reliable and efficacious drugs are available for treating fish diseases caused by myxosporeans. By feeding Fumagillin DCH salt in the diet, the authors achieved very promising results in controlling renal sphaerosporosis, one of the commonest myxosporean parasitoses of common carp Cyprinus carpio. Intraperitoneal injection of Sphaerospora renicola stages developing in the swimbladder produced sphaerosporosis only in control groups, whereas in fish consuming 0.1 % fumagillin no infection developed. Farm-pond experiments also gave promising results: in fumagillintreated common carp fry a much milder sphaerosporosis developed, both in prevalence and intensity, than in control fish

Prometheus, Daedalus or Jesus? Remembrance of an elementary school teacher in the 19th century in Hungary

In Hungary, the second half of the 19th century was the time for the wide spread of public education and the initiation of compulsory school attendance. This led to the emergence of a new role in the society, that of elementary school teacher. In my research, I was keen to examine the characteristics of the teacher figure formed in the minds of the contemporaries,as well as the traditional idea about being a teacher, and the traces of the new conceptualframework in this modernising and professionalized occupation. I conducted a metaphor analysis on texts of 1898 and 1906 – the years of the 25-year jubilee and the death of a particular teacher – and found that instead of modernising, they depicted the well-known heroes of ancient myths. Eulogizing people portrayed the teacher in various sacrale roles, such as ’the apostle of Christ’, ’an evangelistic man’ who ’was building the realm of God’and a mourning person even stated that ’He is not here. He was resurrected!’.In Hungary, the second half of the 19th century was the time for the wide spread of public education and the initiation of compulsory school attendance. This led to the emergence of a new role in the society, that of elementary school teacher. In my research, I was keen to examine the characteristics of the teacher figure formed in the minds of the contemporaries,as well as the traditional idea about being a teacher, and the traces of the new conceptualframework in this modernising and professionalized occupation. I conducted a metaphor analysis on texts of 1898 and 1906 – the years of the 25-year jubilee and the death of a particular teacher – and found that instead of modernising, they depicted the well-known heroes of ancient myths. Eulogizing people portrayed the teacher in various sacrale roles, such as ’the apostle of Christ’, ’an evangelistic man’ who ’was building the realm of God’and a mourning person even stated that ’He is not here. He was resurrected!’

Development of Myxobolus dispar (Myxosporea : Myxobolidae) in an oligochaete alternate host, Tubifex tubifex

The development of Myxobolus dispar Thelohan, 1895, a myxosporean parasite of the gills of common carp (Cyprinus carpio L.) was studied in experimentally infected oligochaetes Tubifex tubifex Muller. After infection of uninfected tubificids with mature spores of M. dispar development of actinosporean stages was first observed light microscopically 21 days after initial exposure. In histological sections, early pansporocysts were located in the gut epithelium of experimental oligochaetes, while advanced stages occupied mostly the outer layers of the gut and the coelozoic space. Mature pansporocysts, each containing 8 raabeia spores, appeared 199 days after initial exposure. Following damage of the intestinal wall and rupture of the pansporocysts, free actinosporean stages were found in the gut lumen of the oligochaetes. Actinospores of M. dispar emerged from the worms after 217 days of intra-oligochaete development. They were floating in the water and showed a unique raabeia form. Each raabeia sport had three pyriform polar capsules and a cylindrical-shaped sporoplasm with approximately 32 secondary cells. The spore body joined the three caudal projections without a style. Caudal projections were bifurcated at the end and the two main branches had further small bifurcations. The total length of the raabeia sport was approximately 158 mu m. The prevalence of infection in 240 experimentally infected Tubifex specimens was 99.2%. No infection was found in the control oligochaetes

Pathological and histopatnotogical studies of the swimbladder of eels Anguilla anguitla infected by Angutlticpta crassus (Nemafoda: Dracuncuioidea)

The swimbladder lesions produced by Anguillicola crassus (Nematoda) infection, causing mass mortality among eels in Lake Balaton (Hungary) were studied by histological methods. In the initial phase of infection, no severe changes developed in the swimbladder wall despite the presence and intensive blood-sucking activity of worms that filled the lumen of the swimbladder. After disruption of the worms and primarily because of repeated reinfection by larvae, however, the wall of the swimblaader markedly thickened and showed degenerative, inflammatory and proliferative changes. Acute processes were characterized by epithelial hyperplasia and hyperaemia of the swimbladder wall. In cases of chronic swimbladder inflammation, oedema and hyperplasia of tissues of the tunica propria, submucosa and serosa could be observed, as well as granulomatoid infiltration by mononuclear cells and fibrinoid degeneration around the larvae

Discourse on Peace and War Beetween 1948-1950 in Hungarian Educational Journals

Az előadás során a háborúról és a békéről való diskurzust elemeztük a magyar pedagógiai sajtóban. A vizsgálat időintervalluma: 1948-1950