Biological flora of Central europe: Baldellia ranunculoides (Alismataceae)

Baldellia ranunculoides (L.) Parl. (Alismataceae) is a taxonomically problematic aquatic plant with an historically ill-defined distribution and global conservation status. This paper finds morphological, ecological and molecular evidence for two distinct taxa, probably best described as subspecies: (1) B. ranunculoides subsp. ranunculoides and (2) B. ranunculoides subsp. repens and provides detailed distribution data on their overlapping range, in different habitats, across the cool, high rainfall areas of western Europe and west Mediterranean. The two subspecies are amongst the relatively large number of threatened European and north Africa aquatic plants and this paper provides a systematic review of their relative conservation pressures and management needs, with particular emphasis on the status of both taxa in central Europe. Other observations indicate probable evolutionary relationships within B. ranunculoides s.l. and its associated taxa and the review points out where these and other research topics could potentially be pursued

Hur skiljer sig avkastning och handelsvolym för aktier inom olika sektorer av räntebesked från Federal Reserve och svenska Riksbanken? : En studie som undersöker olika aktiers avkastning och handelsvolym inom sektorerna bank, fastighet och bygg, de dagar Federal Reserve och Riksbanken publicerar räntenyheter.

This study investigates how interest rate announcements from the Federal Reserve (FED) and the Swedish Riksbank affect stock returns and trading volumes in different sectors within the Swedish stock market. The study focuses on the banking, real estate, and construction sectors. By conducting a quantitative event study, the research aims to compare and examine the impact of interest rate announcements from both the FED and Riksbank on Swedish stocks, assessing which central bank has a more significant influence on the Swedish stock market. The study also explores the effects of interest rate shocks from the FED on trading volumes and how the magnitude of these shocks affects stock returns. The findings suggest that the response to interest rate announcements varies within different sectors and that the impact of these announcements is not consistent across all sectors. Additionally, the results indicate that real estate and construction sectors tend to react more strongly to Riksbank announcements compared to those from FED