Occurrence of the rare genus Microcrocis P. Richter (Chroococcales, Cyanobacteria) in a coastal lagoon from southern Brazil

The paper records the first occurrence of the genus Microcrocis P. Richter (Chroococcales, Cyanobacteria), represented by M. pulchella (Buell) Geitler, in Brazil. The species was found in two zones, one with freshwater and the other with brackish water, of a coastal lagoon of Rio Grande do Sul State (31°15’-31°30’ S and 50°54’-51°09’ W). Comparison between M. pulchella and its most closely related species is presented. Up to now this species had occurrence records limited to freshwater systems in temperate regions. Its presence in a subtropical coastal lagoon from southernmost Brazil, either in fresh or in brackish water, broadened the knowledge of the distribution area of M. pulchella.

Johan Ludwig Runeberg

Tekijä lopusta: V. Ö.

Johan Ludwig Runeberg

Tekijä lopusta: A. O. W.

Geologisk kart over öerne ved Kristiania (etagen 4) : på grundlag af kart over Kristiania havnedistrikt optaget 1884 og 1885

Kartta kuuluu A. E. Nordenskiöldin kokoelmaan

Fick-tidtabell för bantågen å Statsjernvägarne i Finland : fr.o.m. den 1 okt. (19 sept.) 1884 tillsvidare : med karta = Tasku-aikataulu junille Valtionrautateillä Suomessa : 1 p:stä lokakuuta (19 p:stä syysk.) 1884 toistaiseksi : ynnä kartta

Kuuluu A. E. Nordenskiöldin kokoelmaan

Effect of high hydrostatic pressure on the barrier properties of polyamide-6 films

Little is known about the barrier properties of polymer films during high pressure processing of prepackaged foods. In order to learn more about this, we examined the influence of high hydrostatic pressure on the permeation of raspberry ketone (dissolved in ethanol/water) through polyamide-6 films at temperatures between 20 and 60ºC. Permeation was lowered by increasing pressure at all temperatures. At 23°C, the increasing pressure sequence 0.1, 50, 100, 150, and 200 MPa correlated with the decreasing permeation coefficients P/(10(9) cm² s-1) of 6.2, 3.8, 3.0, 2.2, and 1.6. Analysis of the permeation kinetics indicated that this effect was due to a reduced diffusion coefficient. Pressure and temperature acted antagonistically to each other. The decrease in permeation at 200 MPa was compensated for by a temperature increase of 20ºC. After release of pressure, the former permeation coefficients were recovered, which suggests that this `pressure effect' is reversible. Taken together, our data revealed no detrimental effects of high hydrostatic pressure on the barrier properties of polymer films.

Purje väylän kartta Pielis järvellä Läppäsynsaaresta Hattulanniemelle / valmistanut luutnantti G. Enqvist vuonna 1884.

Janamittakaava: Virsta.

Über die Bildung zur Poësie und Beredsamkeit auf Schulen. Nebst Probearbeiten der Gymnasiasten zu Wiburg. Bei Gelegenheit des öffentlichen Examens am Kaiserl. Gymnasium zu Wiburg 1807. Verfasst und herausgegeben von Ludwig Purgold, Oberlehrer am Kaiserlichen Gymnasium zu Wiburg

Imprimatur: Mit Bewilligung der Censur.

Ekonomisk karta över Bergö och Malax socknar på grundval av lantmäterikartor från åren 1884-1920 uppgjord av Helmer Smeds

0-meridiaani : Helsinki.

Über die Bildung zur Poësie und Beredsamkeit auf Schulen. Nebst Probearbeiten der Gymnasiasten zu Wiburg. Bei Gelegenheit des öffentlichen Examens am Kaiserl. Gymnasium zu Wiburg 1807. Verfasst und herausgegeben von Ludwig Purgold, Oberlehrer am Kaiserlichen Gymnasium zu Wiburg

Imprimatur: Mit Bewilligung der Censur.