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Start Over Coverage 91-98

2. An ordered structure of pseudo-BCI-algebras

Creator:
Chajda, Ivan and Länger, Helmut
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
pseudo-BCI-algebra, directoid, antitone mapping, and pseudo-BCI-structure
Language:
English
Description:
In Chajda's paper (2014), to an arbitrary BCI-algebra the author assigned an ordered structure with one binary operation which possesses certain antitone mappings. In the present paper, we show that a similar construction can be done also for pseudo-BCI-algebras, but the resulting structure should have two binary operations and a set of couples of antitone mappings which are in a certain sense mutually inverse. The motivation for this approach is the well-known fact that every commutative BCK-algebra is in fact a join-semilattice and we try to obtain a similar result also for the non-commutative case and for pseudo-BCI-algebras which generalize BCK-algebras, see e.g. Imai and Iséki (1966) and Iséki (1966).
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public

3. Antika a středověk o čase

Creator:
Macků, Pavel and Novotný, Jan
Format:
print, bez média, and svazek
Type:
model:article and TEXT
Subject:
Platón, 427 př. Kr.-347 př. Kr., Aristotelés, 384 př. Kr.-322 př. Kr., svatý, Augustin, 354-430, Tomáš Akvinský, 1225-1274, dějiny fyziky, metafyzika, středověk, čas, history of physics, metaphysics, middle ages, time, 6, and 53
Language:
Czech
Description:
Uvádíme a porovnáváme názory největších myslitelů antiky a středověku - Platóna, Aristotela, Augustina a Tomáše Akvinského - na povahu a vlastnosti času. Všímáme si, jak se jimi formulované názory a problémy odrážejí v současné fyzice., Pavel Macků, Jan Novotný., and Obsahuje seznam literatury
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

4. Development of sporozoites of the piscine coccidium Eimeria (sensu lato) vanasi in gut intraepithelial lymphocyte-like cells

Creator:
Vilenkin, Margarita and Paperna, Ilan
Format:
print
Type:
model:internalpart and TEXT
Subject:
Eimeria vanasi, sporozoites, fine structure, intraepithelial lymphocytes, leucocytes, crystalline body, and endodyogeny
Language:
English
Description:
Fifty-day-old fry of tilapia hybrids (Oreochromis aureus x niloticus) were placed in aquaria containing sediment with oocysts of Eimeria (sensu lato) vanasi Landsberg et Paperna. In the first 29 h after exposure sporulated oocysts in the stomach and free sporozoites in the gut could be found in examined fish. By 7 to 56 h after exposure, sporozoites, with their characteristic crystalloid body, were detected in intraepithélial lymphocyte-like and other leucocyte-like cells, but never in the epithelial cells. Infected cells were confined to the epithelial layer and did not enter the lamina propria. Within this time, some of the sporo-zoitcs divided by endodyogeny, once or twice in succession, to form daughter sporozoites. The parent’s sporozoite crystalline body was divided between the offspring of the primary and secondary divisions.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

5. Kudoa inornata sp. n. (Myxosporea: Multivalvulida) from the skeletal muscles of Cynoscion nebulosus (Teleostei: Sciaenidae)

Creator:
Dyková, Iva, Buron, Isaure de, Fiala, Ivan, and Roumillat, William A.
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
Myxozoa, Myxosporea, Kudoa inornata, muscle infections, and Cynoscion nebulosus
Language:
English
Description:
A new myxosporean species, Kudoa inornata sp. n. (Myxosporea: Multivalvulida), is described from skeletal muscles of the spotted seatrout Cynoscion nebulosus (Cuvier), collected in estuarine waters along the coast of South Carolina, USA. Light microscopic and ultrastructural characters rank this species to the group of Kudoa species with simple-shaped spores. The uniqueness of the SSU and LSU rDNA sequences justifies its status of a new species with sister relationship to Kudoa paniformis. The 100% prevalence in seatrout from four out of five localities sampled and pathogenicity of K. inornata recognized in this study should motivate further screening for infections in its host, which is considered a commercially important game fish with a wide distribution in the Western North Atlantic.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

6. Leaf development and photosynthetic properties of three tropical tree species with delayed greening

Creator:
Cai, Z.-Q., Slot, M., and Fan, Z.-X.
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
Anthocephalus, ascorbate peroxidase, chlorophyll fluorescence, intercellular CO2 content, leaf dry mass per area, Litsea, net photosynthetic rate, stomatal conductance, and superoxide dismutase
Language:
Multiple languages
Description:
Leaf developmental patterns were characterized for three tropical tree species with delayed greening. Changes in the pigment contents, photosynthetic capacity, stomata development, photosystem 2 efficiency, rate of energy dissipation, and the activity of partial protective enzymes were followed in developing leaves in an attempt to elucidate the relative importance of various photoprotective mechanisms during leaf ontogeny. Big leaves of Anthocephalus chinensis, a fast-growing light demanding species, expanded following an exponential pattern, while relatively small leaves of two shade-tolerant species Litsea pierrei and Litsea dilleniifolia followed a sigmoidal pattern. The juvenile leaves of A. chinensis and L. pierrei contained anthocyanin located below the upper epidermis, while L. dilleniifolia did not contain anthocyanin. Leaves of A. chinensis required about 12 d for full leaf expansion (FLE) and photosynthetic development was delayed 4 d, while L. pierrei and L. dilleniifolia required 18 or 25 d for FLE and photosynthetic development was delayed 10 or 15 d, respectively. During the leaf development the increase in maximum net photosynthetic rate was significantly related to changes in stomatal conductance and the leaf maturation period was positively related to the steady-state leaf dry mass per area for the three studied species. Dark respiration rate of leaves at developing stages was greater, and pre-dawn initial photochemical efficiency was lower than that of mature leaves. Young leaves displayed greater energy dissipation than mature leaves, but nevertheless, the diurnal photoinhibition of young L. dilleniifolia leaves was higher than that of mature leaves. The young red leaves of A. chinensis and L. pierrei with high anthocyanin contents and similar diurnal photoinhibition contained more protective enzymes (superoxide dismutase, ascorbate peroxidase) than mature leaves. Consequently, red leaves may have higher antioxidant ability. and Z. Q. Cai, M. Slot, Z. X. Fan.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

7. Occurrence of ribosome-containing structures in Phormiďmm laminosum photosynthetic membranes

Creator:
Filippovich, I.I., Zabalueva, K.T., Zvereva, M.G., and Shatilov, V.R.
Format:
print
Type:
model:internalpart and TEXT
Language:
Multiple languages
Description:
Cell membranes of the cyanobacterium Phormidium lamino.sum were separated into two fractions by centrifugation in a stepwise sucrose gradient. One fraction contained mature thylakoid membranes and the other one contained membranes morphologically similar to primary membranes of pea etiochloroplasts. The latter ones represented an electron-transparent base with numerous electron-dense inclusions. The predominant type of the inclusions was rod-like structures containing presumably ribosomes.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public