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2792. Baltic sea level changes from satellite altimetry data based on the OptD metod

Creator:
Pajak , Katarzyna and Blaszczak-Bak , Wioleta
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
Optimum Dataset (OptD) method, satellite altimetry, and sea level changes
Language:
English
Description:
The present-day sea-level rise is a major indicator of climate change. The sea level in European seas has risen at a rate of 2.5 to 4 millimeters per year (von Schuckmann et al., 2018). The aim of this paper is to present the sea level variability in the Baltic Sea, as based on satellite altimetry. For this purpose, the paper presents a methodology of the investigation of the Baltic Sea level changes based on the Optimum Dataset (OptD) method. The OptD method was used to identify characteristic points from the analyzed data set. For detailed theoretical and empirical tests, the sea level anomaly was used. The time series were created from the data set after introducing the OptD method, in the period from January 1993 to December 2017. The time series are then used to characterize sea level trends, and inter-annual and semi-annual variability in the Baltic Sea region. The results prove that the linear change is higher at points which are located in the northern part of the Baltic Sea, while it is lower at points located in the western part of the Baltic Sea. The average trend is 4.1±0.2 mm/yr. However, the annual cycles in the sea level variations measured by altimetry reach maximum values in approximately the same months (November/December) in the whole Baltic Sea area. We find that there occur substantial regional deviations in sea level depending on the latitude and longitude. Our results confirm the need for research into the sea level variability in the Baltic Sea region.
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public

2793. Banach and statistical cores of bounded sequences

Creator:
Orhan, Cihan and Yardimci, Şeyhmus
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
almost convergent sequence, statistically convergent sequence, and core of a sequence
Language:
English
Description:
In this paper, we are mainly concerned with characterizing matrices that map every bounded sequence into one whose Banach core is a subset of the statistical core of the original sequence.
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public

2794. Banach spaces of homogeneous polynomials without the approximation property

Creator:
Dineen, Seán and Mujica, Jorge
Format:
print, bez média, and svazek
Type:
model:article and TEXT
Subject:
matematika, mathematics, Banach space, approximation property, linear operator, homogeneous polynomial, holomorphic function, 13, and 51
Language:
English
Description:
We present simple proofs that spaces of homogeneous polynomials on Lp[0, 1] and ℓp provide plenty of natural examples of Banach spaces without the approximation property. By giving necessary and sufficient conditions, our results bring to completion, at least for an important collection of Banach spaces, a circle of results begun in 1976 by R. Aron and M. Schottenloher (1976)., Seán Dineen, Jorge Mujica., and Obsahuje seznam literatury
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public

2795. Banach-valued Henstock-Kurzweil integrable functions are McShane integrable on a portion

Creator:
Lee, Tuo-Yeong
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
Henstock-Kurzweil integral and McShane integral
Language:
English
Description:
It is shown that a Banach-valued Henstock-Kurzweil integrable function on an m-dimensional compact interval is McShane integrable on a portion of the interval. As a consequence, there exist a non-Perron integrable function f : [0, 1]2 −→ R and a continuous function F : [0, 1]2 −→ R such that (P)∫ x0{ (P) ∫ y 0 f(u, v) dv } du = (P) ∫ y 0 { (P) ∫ x 0 f(u, v) du } dv = F(x, y) for all (x, y) ∈ [0, 1]2.
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public

2796. Banaschewski’s theorem for generalized $MV$-algebras

Creator:
Jakubík, Ján
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
generalized $MV$-algebra, representability, congruence relation, and unital lattice ordered group
Language:
English
Description:
A generalized $MV$-algebra $\mathcal A$ is called representable if it is a subdirect product of linearly ordered generalized $MV$-algebras. Let $S$ be the system of all congruence relations $\rho $ on $\mathcal A$ such that the quotient algebra $\mathcal A/\rho $ is representable. In the present paper we prove that the system $S$ has a least element.
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public

2797. Band 3 protein function in teleost fish erythrocytes: effects of oxygenation-deoxygenation

Creator:
Russo, A., Tellone, E., Ficarra, S., Giardina, B., Bellocco, E., Lagana, C., Leuzzi, U., Arnošt Kotyk, and Galtieri, A.
Format:
print, bez média, and svazek
Type:
article, články, model:article, and TEXT
Subject:
Biochemie. Molekulární biologie. Biofyzika, biochemie, fyziologie, erytrocyty, biochemistry, physiology, erythrocytes, hemoglobin, band 3 protein, anion transport, oxygenation-deoxygenation cycle, 2, and 577
Language:
English
Description:
During vertebrate evolution, structural changes in red blood cells (RBC) and hemoglobin (Hb), have probably resulted in the importance of blood carbon dioxide transport. The chloride/bicarbonate exchange across the RBC membrane, which is an integral part of the blood CO2 transport process in vertebrates, has been examined on two different species of teleost fish, Euthynnus alletteratus and Thunnus thynnus, at several oxygenation states of erythrocyte HOS (high-oxygenation state, about 90 % of saturation) and LOS (low-oxygenation state, about 15 % of saturation). The results were compared with those observed in human RBC under the same experimental conditions and with the chicken (Gallus gallus) erythrocytes, which have particular modifications at the N-terminus of the band 3 protein (B3). In fish the kinetic measurements have shown a different anion transport in several oxygenation states of erythrocytes, indicating that also at lower levels of vertebrate evolution there exists a modulation of the anionic flow affected by oxygen. The functional correlation of anion transport to changes of parts of the hemoglobin sequence responsible for alterations in the interactions with the cytoplasmic domain of band 3 protein (cdb3) allowed us to suggest a hypothesis about fish physiology. The highest values of kinetic measurements observed in fish have been attributed to the metabolic need of the RBC in response to the removal of CO2 that in teleosts is also of endogenous origin., A. Russo, E. Tellone, S. Ficarra, B. Giardina, E. Bellocco, G. Lagana, U. Leuzzi, A. Kotyk, A. Galtieri., and Obsahuje bibliografii a bibliografické odkazy
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

2798. Bank erosion - prognosis of the retreat of bank line of reservoirs

Creator:
Šlezingr, Miloslav
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
bank erosion, bank abrasion, dam, bank stability, břehová abraze, údolní nádrž, stabilita břehů, and sanace břehů
Language:
Slovak
Description:
The problematics of creation and development of bank erosion, follow-up repairs of abrasion damaged banks and development of abrasion progress prognostic methods is often discussed. One of the contributions to this discussion is presentation of ''Modificated Methods of Abrasion Terminal Line Determination''. The prognosis of bank erosion advance is determined also in areas, where original condition of bank is unknown. This method was successfully verified during years 1998-2001 at Brno Reservoir on the Svratka River and can be used at other dam reservoirs as well. and O problematice vzniku a rozvoje břehové abraze, o návrzích následné sanace abrazí poškozených břehů a vývoji prognostických metod postupu abraze se v posledních letech diskutuje stále častěji. Jedním z příspěvků k této diskusi je i prezentace ''modifikované metody určení abrazní terminanty''. Jedná se zde o stanovení prognózy postupu břehové abraze, a to i v oblastech, ve kterých neznáme původní stav pobřeží. Tato metoda byla úspěšně ověřována v letech 1998-2001 na údolní nádrži Brno na řece Svratce a je široce použitelná i na jiných vodních dílech.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

2799. Bank erosion of the Tŕstie stream: BANCS model predictions vs. real bank erosion

Creator:
Allmanová , Zuzana, Vlčková , Mária, Jankovský , Martin, Jakubis , Matúš, and Allman , Michal
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
BANCS model, bank erosion, and prediction curves
Language:
Slovak
Description:
This paper focused on predicting the bank erosion through the Bank Assessment for Non-point source Consequences of sediment (BANCS) model on the Tŕstie water stream, located in the western Slovakia. In 2014, 18 experimental sections were established on the stream. These were assessed through the Bank Erosion Hazard Index (BEHI) and the Near Bank Stress (NBS) index. Based on the data we gathered, we constructed two erosion prediction curves. One was for BEHI categories low and moderate, and one for high, very high, and extreme BEHI. Erosion predicted through the model correlated strongly with the real annual bank erosion – for low and moderate BEHI, the R2 was 0.51, and for high, very high and extreme BEHI, the R2 was 0.66. Our results confirmed that the bank erosion can be predicted with sufficient precision on said stream through the BANCS model.
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public

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