Search

Start Over Format bez média Rights http://creativecommons.org/licenses/by-nc-sa/4.0/

15282. Weketrema gen. n., a new genus for Weketrema hawaiiense (Yamaguti, 1970) comb. n. (Digenea: Lecithasteridae) recently found in Australian marine fishes

Creator:
Bray, Rodney A. and Cribb, Thomas H.
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
Digenea, Lecithasteridae, Weketrema, Scolopsis, Plectorhinchus, Cheilodactylus, Latridopsis, Great Barrier Reef, and Tasmania
Language:
English
Description:
A new genus, Weketrema, is erected in the family Lecithasteridae for the species hitherto known as Lecithophyllum hawaiiense. Weketrema hawaiiense (Yamaguti, 1970) comb. n. is redescribed from Scolopsis bilineatus (Bloch) (Perciformes: Nemipteridae) from Lizard Island and Heron Island, Queensland, Plectorhinchus gibbosus (Lacepède) (Perciformes: Haemulidae) from Heron Island and Cheilodactylus nigripes Richardson (Perciformes: Cheilodactylidae) and Latridopsis forsteri (Castelnau) (Perciformes: Latridae) from Stanley, northern Tasmania. The new genus is distinguished from related members of the family Lecithasteridae by its complete lack of a sinus-sac. Although placed in the subfamily Lecithasterinae pro tem, its true subfamily position is not entirely clear. Comment is made on its unusual distribution, both in terms of zoogeography and hosts.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

15283. Welmi Kratochwjlné Cžtenj, o schytralé Finettě, Ginák Popelce, nazwané

Creator:
Tureček, Václav Vojtěch and Aulnoy, Marie-Catherine Le Jumel de Barneville
Publisher:
Václav Tureček
Format:
print, bez média, svazek, and a8-d8 [=32] ff ; 8°.
Type:
model:monograph and TEXT
Subject:
století 18., Finetta (fiktivní postava), Popelka (fiktivní postava), próza, kramářské tisky, 82-3, 098:398.51, (0.05), 11, 12, 82, and 094
Language:
Czech and German
Description:
Přeloženo z němčiny.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

15285. Werner Heisenberg, Niels Bohr a příběh kodaňské interpretace

Creator:
Filip Grygar
Format:
print, bez média, and svazek
Type:
model:article and TEXT
Subject:
Bohr, Niels, 1885-1962, Heisenberg, Werner, 1901-1976, kvantová teorie, quantum theory, Copenhagen Interpretation, Complementarity, 12, and 00
Language:
Czech
Description:
Příspěvek se zaměřuje na zavádějící příběh o tzv. kodaňské interpretaci kvantové mechaniky, již jako údajně nerozpornou či jednotnou vytvořili a sdíleli na základě tzv. kodaňského ducha kvantové teorie její tvůrci v roce 1927. Článek bude vycházet z role, kterou v tomto příběhu sehráli především dva významní fyzikové N. Bohra W. Heisenberg. První část příspěvku seznamuje s variacemi toho, co se v literatuře považuje za kodaňskou interpretaci. Druhá část odhaluje, že zatímco kvantová mechanika vznikla ve dvacátých letech 20. století, kodaňská interpretace je veskrze problematickým a především Heisenbergovým produktem z let padesátých. Jednou z hlavních motivací, kvůli níž vystoupil s tzv. kodaňskou interpretací, byla obrana vůči množícím se kritikám obhájců kvantové teorie. Jelikož mezi členy tzv. kodaňské školy nepanovala žádná jednotná či nerozporná interpretace kvantové mechaniky, zaměřuje se poslední část příspěvku na několik vybraných rozdílů hlavně mezi Bohrovým a Heisenbergovým výkladem kvantové teorie., The article focuses on the misleading story of the so-called Copenhagen interpretation of quantum mechanics. The interpretation was allegedly created as unitary or consistent and shared by its founders in 1927 by virtue of the so-called Copenhagen spirit of quantum theory. The paper is based on the role which two leading figures, Niels Bohr and Werner Heisenberg, played in this story. The first part of the article introduces variations of what is considered to be Copenhagen interpretation. The second part reveals that while quantum mechanics had originated in the 1920s, the Copenhagen interpretation was mainly a problematic Heisenberg’s product of the 1950s. One of his main motivations for the introduction of Copenhagen interpretation was to set up a defence against increasing criticism of the supporters of quantum theory. Since there was no unitary or consistent interpretation of quantum mechanics among members of the so-called Copenhagen school, the last part of the paper focuses on several differences primarily between Bohr and Heisenberg’s interpretation., Filip Grygar., and Obsahuje bibliografii
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

15287. What drives conditional cooperation in public goods games?

Creator:
Katuščák, Peter and Miklánek, Tomáš
Publisher:
CERGE-EI
Format:
electronic, bez média, svazek, and 34 stran : ilustrace, tabulky.
Type:
model:monograph and TEXT
Subject:
Ekonomie, dobročinnost, fundraising, experimentální ekonomie, charity, fund raising, experimental economics, 177.72, 364-646.3, 33-028.77, (048.8), 4, and 33
Language:
English and Czech
Description:
Peter Katuščák, Tomáš Miklánek., Obsahuje bibliografii a bibliografické odkazy, and České a anglické resumé
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

15288. What form of existentialism is there in Havel’s concept of dissent?: Hejdánek’s critique of Havel

Creator:
Hejduk, Tomáš
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
Havel, Hejdánek, nonpolitical politics, and dissent
Language:
Czech
Description:
The Czech dissident movement included thinkers who searched for a morally pure, parallel polis, and who felt comfortable within its isolation. The philosophers of Charter 77 (Jan Patočka and Ladislav Hejdánek especially), by contrast, rejected the idea of being morally superior to their opponents. It is interesting to consider where Václav Havel stands at this crossroads. Havel very much cooperated with the above-mentioned philosophers and was inspired by them in his own writing and agency. On the other hand, Havel undoubtedly performed a certain moral-existential concept of dissent. In this paper I examine Havel’s existential concept. In particular, after distinguishing between two existential approaches in Havel’s writings, I analyse two fundamental philosophical critiques of Havel in the work of Ladislav Hejdánek. According to Hejdánek, Havel 1) identifies intellectuals with non-politicians, i.e. he is governed by the incorrect dualism of the political versus the non-political, and 2) is self-focused and moralising, i.e. he keeps too much within his own self (subjectivity) and “a given” (existent, objective) world. Given this critique, I will systematise Hejdánek’s objections and suggested solutions. In the first case, I see the solution in a more detailed distinction: we should distinguish between politics and non-politics (intellectuals) but also non-political politics. In the second case, we should look for the essence (focal point) of man not in his morality but outside it: man should orient himself “out of his self”.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

15289. What is the role of neurotransmitter systems in cortical seizures?

Creator:
Pavel Mareš and Hana Kubová
Format:
print, bez média, and svazek
Type:
article, články, model:article, and TEXT
Subject:
Fyziologie člověka a srovnávací fyziologie, neurofyziologie, epileptologie, farmakologie, neurophysiology, epileptology, pharmacology, cortical epileptic afterdischarges, GABA, glutamate, immature rats, 14, and 612
Language:
English
Description:
Epileptic afterdischarges (ADs) elicited by electrical stimulation of sensorimotor cortical area were used as a model to study the role of neurotransmitter systems in cortical seizures in three age groups of developing rats. Drugs augmenting inhibition mediated by GABAA receptors were found to suppress ADs in all age groups, their activity was usually more marked in younger than in 25-day-old rat pups. Drugs potentiating GABAB receptors exhibit lower efficacy and more complicated developmental profile than GABAA-ergic drugs. Effects of an antagonist of GABAB receptor – marked prolongation of ADs in all three age groups – suggest an important role of GABAB receptors in arrest of cortical seizures. Drugs affecting glutamate receptors exhibit variable effects, usually better expressed in older animals than in 12-day-old ones. No specific role for ionotropic as well as metabotropic glutamate receptors could be predicted. Activation of adenosinergic inhibitory modulatory system also exhibited anticonvulsant action in the present model. All three neurotransmitter systems probably participate in mechanisms of generation, maintenance and arrest of cortical seizures., P. Mareš, H. Kubová., and Obsahuje bibliografii a bibliografické odkazy
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

15290. What is the source of free radicals causing hemolysis in stored blood?

Creator:
Jaroslav Racek, Růžena Herynková, Václav Holeček, Faltysová, J., and Krejčová, I.
Format:
print, bez média, and svazek
Type:
article, články, model:article, and TEXT
Subject:
Fyziologie člověka a srovnávací fyziologie, volné radikály, leukocyty, hemolýza, free radicals, leucocytes, hemolysis, 14, and 612
Language:
English
Description:
The quality of stored blood can be deteriorated by hemolysis caused by free radicals. The purpose of this study was to elucidate whether neutrophile leukocytes are the source of free radicals in stored blood as in hemodialyzed patients. Resuspensions with low (LL) or high (HL) leukocyte concentrations were prepared from samples of twenty healthy volunteers. The samples were incubated for 10 days at 4 °C and then for one day at 37 °C. Markers of hemolysis and free radical metabolism were examined before and after incubation in LL and HL samples. In spite of the difference of leukocytes counts in LL and HL resuspensions (p<0.0001), the pre-incubation values of all laboratory parameters were practically identical. In post-storage samples, superoxide dismutase and glutathione peroxidase activities did not differ in either group. Reduced glutathione in erythrocytes and extracellular antioxidant capacity were insignificantly lower in HL resuspensions, but the increase of malondialdehyde was much more pronounced in the HL samples (p<0.0001). The degree of hemolysis, expressed as the extracellular increase of potassium (p<0.001), hemoglobin (p<0.05) and lactate dehydrogenase (p<0.05), was higher in the HL samples. Our results support the hypothesis that leukocytes participate in free radical production in stored blood., J. Racek, R. Herynková, V. Holeček, J. Faltysová, I. Krejčová., and Obsahuje bibliografii
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

Limit your search

Show values starting with
more »

Show values starting with
more »

Show values starting with
more »

Show values starting with
more »

Show values starting with
more »

Show values starting with
more »

View distribution

Current results range from 1925 to 2022

View larger »