Czy przed wejściem do puszczy powinina wisieć tabliczka z napisem: „Nie przeszkadzać”?
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.
Aktualnym wyzwaniem dla leśników jest znalezienie sposobów na przebudowę polskich lasów, by dostosować ich skład gatunkowy do zmieniających się warunków siedliskowych.
O tym, dlaczego Puszcza Białowieska powinna odnawiać się sama, mówi prof. dr hab. Krzysztof Spalik, przewodniczący Komitetu Biologii Środowiskowej i Ewolucyjnej PAN.
Jaki charakter ma toczący się od dwóch lat spór o sposób postępowania gospodarczego i ochronnego w lasach gospodarczych Puszczy Białowieskiej?
Jak pogłębić swoją relację z przyrodą podczas następnego spaceru do lasu, a także o tym, czym jest ekohipokryzja, opowiada prof. Dariusz J. Gwiazdowicz.
Lasy są dynamicznym tworem przyrody (i człowieka). Odpowiedzialność za nie spoczywa na całym społeczeństwie.
Thin films of crystallized LaCoO3 were grown on Si substrate by Pulsed Laser Deposition at different temperatures (750°C, 850°C and 1000°C). The structural characterization of the LaCoO3 thin films was done by combining several techniques: Scanning Electron Microscopy (SEM), Atomic Force Microscope (AFM), Transmission Electron Microscopy (TEM) and Grazing Incidence X-Ray Diffraction (GIXRD). The thin films crystallized in the expected rhombohedral phase whatever the deposition temperature, with an increase of crystallite size from 70 nm at 750°C to 100 nm at 1000°C, and an average thickness of the thin films of less than 200 nm. At 850°C and 1000°C, the thin films are crack-free, and with a lower number of droplets than the film deposited at 750°C. The grains of LaCoO3 film deposited at 850°C are columnar, with a triangular termination. At 1000°C, an intermediate layer of La2Si2O7 was observed, indicating diffusion of Si into the deposited film.
Jednym z większych wyzwań, przed jakimi stoi polskie leśnictwo, jest opracowanie nowych strategii hodowli lasów w obliczu postępujących zmian klimatu.
Zola's novel world can be seen as a play of forces that takes place in a strictly defined spatial configuration between aspirational characters striving to realize their desires; the body in motion becomes their expressive medium. Always semantically marked, movement is not only understood as the hero's movement between points in space. In this analytical perspective, based on the body of La Curée et L`Argent, the movement becomes the embodiment of the will / desire, the transformation of thought into action, what is potential into real.
A few specimens of a macroporid bryozoan were collected, from the Eocene La Meseta Formation from Seymour (Marambio) Island, Antarctic Peninsula. Based on the morphology of the studied specimens Macropora antarctica sp.n. has been erected. This is the stratigraphically oldest species of the genus which exhibits a number of similarities with the Tertiary fossils and some Recent macroporids reported from the Southern Hemisphere i.e., Australia, New Zealand and South America.
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