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Start Over Coverage 463-468

1. Fyzik Helmar Frank - dielo nestora a priekopníka fyziky, techniky a technológie polovodičov

Creator:
Kinder, Rudolf
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
fyzikové, physicists, 6, and 53
Language:
Czech
Description:
Článok sa zaoberá vedeckou činnosťou významnej osobnosti Helmara Franka (1919-2015). Bola významná pri zvládnutí výroby prvých polovodičových diód a tranzistorov a ich zavedení do výrobného procesu krátko po vynájdení tranzistora. Významná bola aj jeho vedecko-pedagogická činnosť uplatňovaná na vysokých školách v rámci Československa, neskôr Čech a Moravy a Slovenska. and Rudolf Kinder.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

2. Physiological divergences between two rhizomatous grasses from a desertification steppe, North China

Creator:
Wang, R. Z.
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
adaption to drought, Calamagrostis epigeios, net photosynthetic rate, Psammochloa villosa, stomatal conductance, transpiration, and water relations
Language:
Multiple languages
Description:
The inter-and intra-specific physiological differences, e.g. rates of net photosynthesis (PN) and transpiration (E), stomatal conductance (gs), and water use efficiency (WUE), were compared between two grasses, Calamagrostis epigeios (L.) Roth. and Psammochloa villosa (Trin.) Bor., and between their leaf types in a desertification steppe in North China. The two species had a similar habitat, but differed in leaf area and rhizome depth. Leaf PN, E, and g s for P. villosa were significantly greater than those for C. epigeios in the growing season, but WUE for the former species was only 50 and 80 % of that for the latter one in dry and rainy seasons, respectively. In general, leaf PN, E, g s, and WUE for both vegetative and reproductive shoots of the two species exhibited little variations between leaf types or with leaf age, even though there were some remarkable differences between dry and rainy seasons. The mean leaf PN and E in reproductive shoots of P. villosa were significantly lower than those in its vegetative shoots in rainy season, while these differences were much smaller for those of C. epigeios. P. villosa with deeper rhizome roots has relative higher leaf PN, E, and g s, but a smaller WUE in the arid desertification steppe region.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

3. Ultra $LI$-ideals in lattice implication algebras

Creator:
Qin, Keyun, Xu, Yang, and Jun, Young Bae
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
lattice implication algebra, (ultra) $LI$-ideal, and finite additive property
Language:
English
Description:
We define an ultra $LI$-ideal of a lattice implication algebra and give equivalent conditions for an $LI$-ideal to be ultra. We show that every subset of a lattice implication algebra which has the finite additive property can be extended to an ultra $LI$-ideal.
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public