Carnicaproefstand De Welle

De Carnicavereniging Oost-Nederland spant zich in voor de verspreiding van de 'zachtaardige' carnicabij in Nederland door koninginnenteelt, selectie en testen van volken, op basis van raszuiver Duits uitgangsmateriaal. In een tabel de honingproductie in 2000 en waardering van de eigenschappen van de stamvolken van vier Duitse moere

Estimating Herbaceous Biomass of Grassland Vegetation Using the Reference Unit Method

Aboveground net primary production provides valuable information on wildlife habitat, fire fuel loads, and forage availability. Aboveground net primary production in herbaceous plant communities is typically measured by clipping aboveground biomass. However, the high costs associated with physically harvesting plant biomass may prevent collecting sufficient data to account for natural spatial and temporal variability of vegetation at a landscape scale. Various double-sampling techniques have been developed to increase sample size while reducing cost. We applied a biomass estimation technique previously developed for estimating shrub biomass using representative samples or “reference units” to estimate herbaceous grassland biomass. Our reference units consisted of major grass species and functional groups that involved combining species with similar origin (native vs. introduced) and life-form characteristics. This study was conducted in 2010 on and around prairie dog colonies on the Buffalo Gap National Grassland in southwestern South Dakota, which provided a range of plant communities for testing the method. Results of the study demonstrate that reference units can provide accurate and precise estimates of herbaceous plant biomass on grasslands, including multi-species functional groups. Twenty-five of 26 double sampling calibrations were validated by time with no changes in observer estimation trends over the sampling season. Use of the reference unit method was consistent among observers and is a viable option for estimating and monitoring herbaceous grassland aboveground biomass

Pass Me Not, O Gentle Saviour

Title Onlyhttps://scholarsjunction.msstate.edu/cht-sheet-music/7866/thumbnail.jp

Intracranial Stents Past, Present and the Future Trend: Stents Made with Nano-particle or Nanocomposite Biomaterials

Stroke or cerebral vascular accidents are among the leading causes of death in the world. With the availability of Digital Subtraction Angiography, transluminal angioplasty has become feasible in many situations and the role of intracranial stents is becoming ever more important in the management of cerebral vascular diseases. In current review, we outline the chronological development of various stents namely; balloon expandable stent, self-expandable open cell stent, self-expandable close cell stent and the flow diverting stent. Further we discuss their advantages and limitations in terms of stent migration, thromboemboli, damage to vessels during procedure, in-stent stenosis and hyper-perfusion damage. We also discuss the importance of in-situ endothelialization, controlled expandability and hemodynamic manipulation in stent design. Further, we summarized the role and need for further development in the areas of bio-compatible materials, endothelial progenitor cell capture technique, bio-functionalized-magnetic-nano-particles and nanotechnology which are significant in intracranial stent development

Determining the profitablity of multiple species livestock enterprise budgets within West Texas

For several decades, multiple species stocking has been accepted as an effective and efficient practice in the ranching industry of west Texas. Benefits include exploitation of multiple markets, flexibility to adjust to those markets, maximum utilization of forage diversity, and sustained productive health of the improved pasture. This investigation was designed to assess the potential profit represented in different combinations, while accounting for extensive variability through the analysis of a series of enterprise budgets. Results indicate that a multiple species cow-calf and commercial range sheep combination enterprise generates the highest profitability. Sensitivity analysis was also conducted to show how volatile an enterprise can be to market fluctuations both low and high