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Start Over Coverage 87-95

1. Approximations to mild solutions of stochastic semilinear equations with non-Lipschitz coefficients

Creator:
Barbu, Dorel and Bocsan, Gheorghe
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
mild solution and Picard approximations
Language:
English
Description:
In the present paper, using a Picard type method of approximation, we investigate the global existence of mild solutions for a class of Ito type stochastic differential equations whose coefficients satisfy conditions more general than the Lipschitz and linear growth ones.
Rights:
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3. Mikromorfologie v archeologickém kontextu jako nástroj pro interpretace vzniku výplní pravěkých objektů: případová studie z Tvrdonic, okr. Břeclav

Creator:
Lisá, Lenka and Trampota, František
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
La Tène Culture, Early Bronze Age, formation processes, floor horizons, and microstratigraphy
Language:
Czech
Description:
Micromorphology in the archaeological context is a methodological tool of modern multidisciplinary archeology. It is basically a microscopic characterization of sediments in a direct context of archaeological situations with the aim of detecting formation processes, the knowledge of which is essential for further interpretations. This method was applied to the sediment fill of two features in a stratigraphic relationship from the locality Tvrdonice – “Pole od Týnecka”. Samples were taken from a La Tène recessed structure fill and an earlier Bronze Age pit that is superimposed below the La Tène feature. From a macroscopic and micromorphological point of view, it is evident that the fill of an Early Bronze Age feature consists of wind-blown sands in superposition with in situ or slightly displaced soil material. Micro-layers detected macroscopically are only related to object leveling. The layer of soil beneath the “floor” of the La Tène recessed building displays signs of long-term bioturbated soil, i.e. the La Tène building was founded in an existing depression. The active floor layer of the La Tène building is represented by alternating layers of lighter and darker laminae. While the darker laminae represent the trampled layer, the lighter laminae consist of recrystallized ash, which impregnates the trampled layer. On a social level, this finding can be interpreted as the creators of the La Tène recessed building choosing to minimize labour costs by using the recessed terrain and thus avoiding the excavation of the building floor. The utility area possessed a purposefully modified surface, which is related to ergonomic efficiency, but its function is unknown. The uppermost part of the fill is formed by backfill that does not show any signs of pedogenic influences, which indicates that the object was intentionally filled (leveled).
Rights:
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4. Photosynthetic characteristics of diploid honeysuckle (Lonicera japonica Thunb.) and its autotetraploid cultivar subjected to elevated ozone exposure

Creator:
Zhang, L., Xu, H., Yang, J.-C., Li, W.-D., Jiang, G.-M., and Li, Y.-G.
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
botanika, botany, air pollution, chlorophyll a fluorescence, chromosome doubling, gas exchange, Lonicera japonica, and ozone sensitivity
Language:
Multiple languages
Description:
In order to investigate the effect of chromosome doubling on ozone tolerance, we compared the physiological responses of a diploid honeysuckle (Lonicera japonica Thunb.) and its autotetraploid cultivar to elevated ozone (O3) exposure (70 ng g-1, 7 h d-1 for 31 d). Net photosynthetic rate (PN) of both cultivars were drastically (P<0.01) impaired by O3. Although there were significantly positive correlation between PN and stomatal conductance (gs) in both cultivars under each treatment, the decreased gs in O3 might be the result rather than the cause of decreased P N as indicated by stable or increasing the ratio of intercellular to ambient CO2 concentration(Ci/Ca). PN under saturating CO2 concentration (PNsat) and carboxylation efficiency (CE) significantly decreased under O3 fumigation, which indicated the Calvin cycle was impaired. O3 also inhibited the maximum efficiency of photosystem II (PSII) photochemistry in the dark-adapted state (Fv/Fm), actual quantum yield of PSII photochemistry (ΦPSII), electron transport rate (ETR), photochemical quenching coefficient (qP), non-photochemical quenching (NPQ), the maximum in vivo rate of Rubisco carboxylation (Vcmax) and the maximal photosynthetic electron transport rate (Jmax) which demonstrated that the decrease in PN of the honeysuckle exposed to elevated O3 was probably not only due to impairment of Calvin cycle but also with respect to the light-harvesting and electron transport processes. Compared to the diploid, the tetraploid had higher relative loss in transpiration rate (E), (gs), (PNsat), Vcmax and Jmax. This result indicated that the Calvin cycle and electron transport in tetraploid was damaged more seriously than in diploid. A barely nonsignificant (P=0.086) interaction between O3 and cultivar on PN suggested a higher photosynthetic sensitivity of the tetraploid cultivar. and L. Zhang ... [et al.].
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

7. Relative Gorenstein injective covers with respect to a semidualizing module

Creator:
Tavasoli, Elham and Salimi, Maryam
Format:
print, bez média, and svazek
Type:
model:article and TEXT
Subject:
matematika, mathematics, semidualizing module, Gc-flat module, Gc-injective module, cover, envelope, 13, and 51
Language:
English
Description:
Let R be a commutative Noetherian ring and let C be a semidualizing R-module. We prove a result about the covering properties of the class of relative Gorenstein injective modules with respect to C which is a generalization of Theorem 1 by Enochs and Iacob (2015). Specifically, we prove that if for every Gc-injective module G, the character module G+ is Gc-flat, then the class GIc(R) Ac(R) is closed under direct sums and direct limits. Also, it is proved that under the above hypotheses the class GIc(R) Ac(R) is covering., Elham Tavasoli, Maryam Salimi., and Obsahuje bibliografii
Rights:
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