Rohon Beard (RB) cells are embryonic primary sensory neurons that are removed by programmed cell death during larval development in zebrafish. RB somatosensory functions are taken over by neurons of the dorsal root ganglia (DRG), suggesting that RB cell death may be triggered by the differentiation of these ganglia, as has been proposed to be the case in Xenopus. However, here we show that the ...

OBJECTIVE To discuss issues and concerns in the application of the theory of planned behavior (TPB) to the decision to have a child. METHOD We review the basic structure of the TPB, its principles, and its assumptions as they apply to fertility decisions. Among other issues we consider attitudes, subjective norms, and perceptions of control as antecedents to the decision to have a child; the ex...

The study of sympatric populations of closely related plant species often reveals evidence of hybridization. Mechanisms that reduce outcrossing (e.g., selfing, apomixis) may allow co-occurrence without gene flow. In this study, we describe patterns of genetic variation in two contact zones, each comprising three closely related morphological types, that key to three distinct species in the Nort...

The article presents for the first time results of a study preservation features explants 2 rare endemic species under conditions in vitro genebank 12 months. Microshoots Crepis purpurea (Willd.) M. Bieb (Asteraceae) and Scrophularia exilis Popl. (Scrophulariaceae), cultured were included research. Microshoots’ segments 0,5-1,0 cm long used as preservation. placed on an agarized culture medium ...

Rohon-Beard (RB) spinal neurons of Xenopus larvae are depolarized by GABA. To study the mechanisms underlying this distinctive response, intracellular and patch-clamp recordings were made from RB neurons in situ. The intracellularly recorded GABA reversal potential (EREV) was near -30 mV in normal saline and was approximately 25 mV more negative in Na(+)-free saline. Whole-cell recordings from ...

The paper investigates the role of labour flows in determining the growth of industrial clusters (defined as a combination of industries and spatial areas). Within an ecological approach the role of inter and intra industry as well as of inter and intra cluster interactions is theoretically modelled and empirically tested. This approach is enriched with other economic perspectives in order to t...

Crepis alpina acetylenase is a variant FAD2 desaturase that catalyses the insertion of a triple bond at the Delta12 position of linoleic acid, forming crepenynic acid in developing seeds. Seeds contain a high level of crepenynic acid but other tissues contain none. Using reverse transcriptase-coupled PCR (RT-PCR), acetylenase transcripts were identified in non-seed C. alpina tissues, which were...