A comparison of biochemical and genetic classification of Propionibacterium acnes strains isolated from skin lesions of patients with acne

Przeprowadzono analizę 66 szczepów Propionibacterium acnes. Szczepy podzielono na typy biochemiczne i genetyczne; oceniano także występowa­nie β-hemolizy. Biochemiczny typ I sorbitolo-dodatni dominował u 79%, a hemolizę typu β zaobserwowano u 36% badanych szczepów. Wszystkie szczepy typu biochemicznego I reprezentowały genotyp A. Typ II charak­teryzował się wysoką zmiennością genotypową obejmując genotypy A, A’, B i C. Uzyskane wyniki uzupełnią wiedzę o różnorodności biochemicznej i genetycznej P. acnes

Społeczne, gospodarcze i polityczne relacje we współczesnych stosunkach międzynarodowych

Publikacja recenzowana / Peer-reviewed publicatio

Dry and Humid Periods Reconstructed from Tree Rings in the Former Territory of Sogdiana (Central Asia) and Their Socio-economic Consequences over the Last Millennium

One of the richest societies along the Silk Road developed in Sogdiana, located in present-day Tajikistan, Uzbekistan, and Kyrgyzstan. This urban civilisation reached its greatest prosperity during the golden age of the Silk Road (sixth to ninth century ce). Rapid political and economic changes, accelerated by climatic variations, were observed during last millennium in this region. The newly developed tree-ring-based reconstruction of precipitation for the pastmillennium revealed a series of dry and wet stages. During the Medieval Climate Anomaly (MCA), two dry periods occurred (900–1000 and 1200–1250), interrupted by a phase of wetter conditions. Distinct dry periods occurred around 1510–1650, 1750–1850, and 1920–1970, respectively. The juniper tree-ring record of moisture changes revealed that major dry and pluvial episodes were consistent with those indicated by hydroclimatic proxy data from adjacent areas. These climate fluctuations have had longand short term consequences for human history in the territory of former Sogdiana

The 42nd Symposium Chromatographic Methods of Investigating Organic Compounds : Book of abstracts

The 42nd Symposium Chromatographic Methods of Investigating Organic Compounds : Book of abstracts. June 4-7, 2019, Szczyrk, Polan