Georgii Aleksandrovich Zavarzin,January 28, 1933–September 6, 2011

In Memorium

Georgii Aleksandrovich Zavarzin, January 28, 1933–September 6, 2011     

Vladimir Ivanovich Korogodin (January 4, 1929–October 31, 2005)

Chronicle

Vladimir Ivanovich Korogodin (January 4, 1929–October 31, 2005)     

Keystone Symposia on Epigenomics and Chromatin Dynamics: Keystone resort,CO, January 17–22, 2012

Keystone Symposia kicked off the start of 2012 with two joint meetings on Epigenomics and Chromatin Dynamics and a star-studded list of speakers. Held in Keystone, CO, January 17–22, and organized by Steven Jacobsen and Steven Henikoff and by Bradley Cairns and Geneviève Almouzni, respectively, there was plenty happening in these sessions that it did not seem to matter that the ski-slope conditions were not ideal.     

In memory of Aleksandr Sergeevich Kingsep (February 18, 1944–January 29, 2010)

Obituary

In memory of Aleksandr Sergeevich Kingsep (February 18, 1944–January 29, 2010)     

Proceedings of the XVIII Congress of the International Primatological Society Adelaide,Australia, January 7–12, 2001

International Journal of Primatology -     

AACR-ISREC joint symposium ‘Cancer and the cell cycle’ January 17–20, 1996, Laussnne,Switzerland

It has become apparent in the recent years that defects in regulatory systems of the eukaryotic cell cycle contribute, in a major way, to the evolution of a neoplastic phenotype in mammalian cells. The American Association of Cancer Research (AACR) and the Swiss Institute for Experimental Cancer Research (ISREC) jointly organized a meeting, held last January in Lausanne/Switzerland, to discuss recent results in cell cycle research and their implications for cancer.     

Occurrence of cyclopoid copepods and faecal material in the Halley Bay region,Antarctica, during January–February 1991

Faecal material and cyclopoid copepods were collected during the expedition ANT IX/3, in the Halley Bay area (Weddell Sea, Antarctica), between January and February 1991. Faecal material comprised pellets produced by krill, copepods, ostracods and appendicularians. Cyclopoid copepods were represented by two genera, Oithona and Oncaea. In the Halley Bay area, higher concentrations of krill faecal material (420.9 mm³ m^–2) and chl.-a (39.3 mg m^–2) were found within the upper 200 m of the water column of the polynya than in ice-covered open-ocean areas (58.2 mm³m^–2 and 25.5 mg m^–2, respectively). At an ice-drift station, high concentrations of krill faecal strings under fest-ice were found. In addition, similarities between diatom assemblages in the pack-ice algae and krill faecal strings contents suggest an active utilization of ice-algae by krill populations. Sedimented material collected at 50 m depth by a sediment trap was dominated by krill faecal strings. Contents of small oval pellets (of probable cyclopoid copepod origin) resemble those of krill faecal pellets suggesting that coprophagy was involved. This suggestion is supported by: (1) The small quantity of food particles (other than krill faecal matter) available in the water column (< 0.3 g chl.-al^–1). (2) The negative in situ correlation between krill faecal strings and cyclopoid copepods. (3) The structure of cyclopoid copepod buccal appendages, which are more adapted for raptorial feeding.