Nowe stanowiska dlugosza krolewskiego [Osmunda regalis L.] we wschodniej Wielkopolsce

In the present paper two new localities of the royal fern (Osmunda regalis L.) from Ciświca Nowa and Łomów near Stawisko (Forest District Grodziec) are described. The occurrence of this species in different forest communities is shortly characterized

Nowe stanowisko kwitnacego i owocujacego bluszczu pospolitego [Hedera helix L.] w Polsce

In the present paper one of the biggest locality of generative specimens of ivy (Hedera helix L.) from Ryczeń near Leszno is described

Szata roslinna projektowanego rezerwatu Ciswickie Bagna kolo Grodzca we wschodniej Wielkopolsce

The paper presents results of geobotanical investigations carried out in the projected “Ciswickie Bagna” nature reserve near Grodziec (eastern Wielkopolska). Rich flora of vascular plants consists of 274 taxons, including 10 species protected by law, e.g. Osmunda regalis L. In 41 plant communities found, 24 are endangered in the Wielkopolska including the E category (dying out, directly threatened with extinction) represented by as many as 7 associations with the most valuable forest community of the reserve Vaccinio uliginosi–Pinetum Kleist 1929 nom. inv

Interesujace stanowisko kruszczyka blotnego Epipactis palustris [L.] Crantz w Kozieglowach kolo Poznania

In the present paper a new locality of marsh helleborine (Epipactis palustris (L.) Crantz) on the administrative boundary of Poznan city and Koziegłowy village is described. It is on an artificially constructed railway enbankment, hence being a highly antropogenic location. The occurrence of this species on such untypical locality is shortly characterized

Combined Funnel, Concentrator, and Particle Valve Functional Element for Magnetophoretic Bead Transport Based on Engineered Magnetic Domain Patterns

Controlled actuation of superparamagnetic beads SPBs within a microfluidic environment using tailored dynamic magnetic field landscapes MFLs is a potent approach for the realization of point of care diagnostics within Lab on a chip LOC systems. Making use of an engineered magnetic domain pattern as the MFL source, a functional LOC element with combined magnetophoretic funnel , concentrator, and valve functions for micron sized SPBs is presented. A parallel stripe domain pattern design with periodically decreasing increasing stripe lengths is fabricated in a topographically flat continuous exchange biased EB thin film system by ion bombardment induced magnetic patterning IBMP . It is demonstrated that, upon application of external magnetic field pulses, a fully reversible concentration of SPBs at the domain pattern s focal point occurs. In addition, it is shown that this functionality may be used as an SPB funnel , allowing only a maximum number of particles to pass through the focal point. Adjusting the pulse time length, the focal point can be clogged up for incoming SPBs, resembling an on off switchable particle valve . The observations are supported by quantitative theoretical force consideration

Tunable magnetic properties of monoatomic metal-oxide Fe/MgO multilayers

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