(a) Photosynthesis with protoplasm isolated from Chara or Nitella as measured by C(14) fixation has been obtained at a rate 12 to 15 per cent of that of the whole cells. (b) Photosynthesis by cut cells of Chara or Nitella with the vacuolar sap removed was at a rate comparable to that of the whole cells. (c) Both the protoplasm and the cut cells reduced CO(2) in the light to sucrose and hexose p...

We present the modification of the orbits of χ Draconis and HD 184467, and a completely new orbit for HD 198084, including data taken at the Center for High Angular Resolution Astronomy (CHARA) Array. These data were obtained using a modification of the technique of separated fringe packets (SFPs). The accuracy of the SFP data surpasses that of data taken by speckle, but the technique is much m...

Antoni Ferragut, a) Jaume Llibre, b) and Chara Pantazi c) Departament de Matemàtica Aplicada I, Universitat Politècnica de Catalunya, ETSEIB, Av. Diagonal, 647, 08028, Barcelona, Catalonia, Spain Departament de Matemàtiques, Universitat Autònoma de Barcelona, Edifici C, 08193 Bellaterra, Barcelona, Catalonia, Spain Departament de Matemàtica Aplicada I, Universitat Politècnica de Catalunya, (EPS...

This paper presents new records and noteworthy data on the following taxa in SE Europe adjacent regions: cyanobacteria Anagnostidinema amphibium, mycorrhizal fungus Tricholoma frondosae, stonewort Chara connivens, mosses Dicranum polysetum Ulota intermedia, dicots Eclipta prostrata, Paeonia daurica subsp. daurica, Ruta graveolens Sorbus bosniaca.

Context. One of the main challenges of optical stellar interferometers is to increase the number of telescopes in the recombining unit to provide a larger number of measurements and an improved imaging capability. At the same time there is a need to preserve the spectroscopic capabilities, which leads to complex recombining schemes that may inhibit development. Aims. We describe the possibiliti...

Cytoplasmic streaming in characean algae is thought to be generated by interaction between subcortical actin bundles and endoplasmic myosin . Most of the existing evidence supporting this hypothesis is of a structural rather than functional nature . To obtain evidence bearing on the possible function of actin and myosin in streaming, we used perfusion techniques to introduce a number of contrac...

as accompanying the use of this drug arc due to stronger drugs mixed with Indian hemp. He regards liyoscyamus, opium and datura among others as the probable cause of the intoxicating effects. Anyone living in India acquainted with the legal restrictions under which Indian hemp is sold, both"wholesale and retail, will understand that large quantities of these drugs are purchased and consumed in ...