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Number of results: 5
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Abstract

Równiny zalewowe są bardzo cennymi i zarazem zagrożonymi ekosystemami głównie w wyniku działalności człowieka, przez co wymagają ochrony lub działań renaturyzacyjnych. Dunaj posłuży za przykład, jak różne metody renaturyzacji wpływają na rzekę i jej bezpośrednie otoczenie.

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Authors and Affiliations

Andrea Funk
Thomas Hein
Keywords RNA egzosom
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Abstract

The Bulletin of the Polish Academy of Sciences: Technical Sciences (Bull.Pol. Ac.: Tech.) is published bimonthly by the Division IV Engineering Sciences of the Polish Academy of Sciences, since the beginning of the existence of the PAS in 1952. The journal is peer‐reviewed and is published both in printed and electronic form. It is established for the publication of original high quality papers from multidisciplinary Engineering sciences with the following topics preferred: Artificial and Computational Intelligence, Biomedical Engineering and Biotechnology, Civil Engineering, Control, Informatics and Robotics, Electronics, Telecommunication and Optoelectronics, Mechanical and Aeronautical Engineering, Thermodynamics, Material Science and Nanotechnology, Power Systems and Power Electronics.

Journal Metrics: JCR Impact Factor 2018: 1.361, 5 Year Impact Factor: 1.323, SCImago Journal Rank (SJR) 2017: 0.319, Source Normalized Impact per Paper (SNIP) 2017: 1.005, CiteScore 2017: 1.27, The Polish Ministry of Science and Higher Education 2017: 25 points.

Abbreviations/Acronym: Journal citation: Bull. Pol. Ac.: Tech., ISO: Bull. Pol. Acad. Sci.-Tech. Sci., JCR Abbrev: B POL ACAD SCI-TECH Acronym in the Editorial System: BPASTS.

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Authors and Affiliations

Andrzej Dziembowski
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Abstract

Floodplains are highly valuable, but highly endangered ecosystems. Restoration programs need to carefully consider their multifunctionality, ecological value and the provision of ecosystem services. The example of the Danube River illustrates the impacts of various restoration measures.

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Authors and Affiliations

Andrea Funk
Thomas Hein
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Abstract

Prof. Andrzej Dziembowski of the PAS Institute of Biochemistry and Biophysics, laureate of this year’s Prize of the Foundation for Polish Science (FNP), talks about RNA-degrading enzymes, the role of yeast in studies that help humans, and two different types of scientists.

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Authors and Affiliations

Andrzej Dziembowski
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Abstract

Non-intentionally doped GaSb epilayers were grown by molecular beam epitaxy (MBE) on highly mismatched semi-insulating GaAs substrate (001) with 2 offcut towards (110). The effects of substrate temperature and the Sb/Ga flux ratio on the crystalline quality, surface morphology and electrical properties were investigated by Nomarski optical microscopy, X-ray diffraction (XRD) and Hall measurements, respectively. Besides, differential Hall was used to investigate the hole concentration behaviour along the GaSb epilayer. It is found that the crystal quality, electrical properties and surface morphology are markedly dependent on the growth temperature and the group V/III flux ratio. Under the optimized parameters, we demonstrate a low hole concentration at very low growth temperature. Unfortunately, the layers grown at low temperature are characterized by wide FWHM and low Hall mobility.

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Authors and Affiliations

D. Benyahia
Łukasz Kubiszyn
ORCID: ORCID
Krystian Michalczewski
ORCID: ORCID
A. Kębłowski
Piotr Martyniuk
ORCID: ORCID
J. Piotrowski
A. Rogalski

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