Reactions of Na/plus/, K/plus/, and Ba/plus/ ions with O2, NO, and H2O molecules

Investigating ion molecule reactions of sodium, potassium, and barium ions with oxygen, nitric oxide, and water in drift tube mass spectromete

Comparison of Reprocessed ASAR WM Ocean Wave Spectra with

A major upgrade of the processing of Envisat ASAR Wave Mode (WM) products has been done followed by an extensive geophysical validation. The calibration/validation of the products are conducted using collocated WAM model as provided by ECMWF as well as available buoy data. Validation shows a significant improvement in the geophysical quality of the both the Level 1 WVS and the Level 2 WVW product. Less RMS deviation and bias between WVW and WAM or buoy wave spectra parameters are observed. We observe that the RMS error of H and 12 T p of the WVW is similar to values of WAM, both compared to the buoys. For the bias, the WVW values are slightly higher than the WAM values, both compared to buoy. For H these are RMS=0.57m (0.52m) an

Both the apoptotic suicide pathway and phagocytosis are required for a programmed cell death in Caenorhabditis elegans

Background Programmed cell deaths in the nematode Caenorhabditis elegans are generally considered suicides. Dying cells are engulfed by neighboring cells in a process of phagocytosis. To better understand the interaction between the engulfment and death processes, we analyzed B.al/rapaav cell death, which has been previously described as engulfment-dependent and hence as a possible murder. Results We found that B.al/rapaav is resistant to caspase-pathway activation: the caspase-mediated suicide pathway initiates the cell-death process but is insufficient to cause B.al/rapaav death without the subsequent assistance of engulfment. When the engulfing cell P12.pa is absent, other typically non-phagocytic cells can display cryptic engulfment potential and facilitate this death. Conclusions We term this death an “assisted suicide” and propose that assisted suicides likely occur in other organisms. The study of assisted suicides might provide insight into non-cell autonomous influences on cell death. Understanding the mechanism that causes B.al/rapaav to be resistant to activation of the caspase pathway might reveal the basis of differences in the sensitivity to apoptotic stimuli of tumor and normal cells, a key issue in the field of cancer therapeutics.Howard Hughes Medical InstituteNational Institutes of Health (U.S.) (Pre-Doctoral Training Grant T32GM007287

Orchestrating Economic, Socio-Technical and Technical Validation Using Visual Modelling

The paper presents an approach for orchestrating validation of project results from different perspectives by using visual modelling techniques. The context for the paper is the FP6 project MAPPER. Validation in MAPPER covers economic, socio-technical and technical viewpoints. The economic viewpoint mainly focuses on business value and coherence with business drivers like reduced lifecycle time or increased flexibility. Sustainable collaboration for joint value creation of various units in a networked organisation is the main aspect of the socio-technical viewpoint. From a technical point of view, usability of IT-infrastructure and services is a key aspect. The MAPPER Validation Framework includes and orchestrates approaches and methodologies from these three viewpoints and defines the validation actions to be performed. The main contributions of the paper to research in the field are (1) the structure of the MAPPER Validation Framework integrating different validation perspectives, (2) experiences from using a visual modelling environment for framework development and (3) experiences from orchestrating different validation perspectives

Vertical migration, feeding and colouration in the mesopelagic shrimp Sergestes arcticus

Intraspecific variation in vertical distribution, timing of vertical migration, and colouration of the mesopelagic shrimp Sergestes arcticus were studied in the >400 m deep part of Masfjorden, Norway. Very few individuals were caught in the upper strata during daytime, and larger individuals occurred deeper during the day than smaller ones. Vertical migration was prominent and no overall trend of increasing length with depth was found at night. Small individuals arrived in the upper layers earlier than larger ones. Animal colouration assessed by digital photography revealed significant variance in individual redness. Depth of capture was the most important factor explaining colouration, with increasing degree of redness with depth. Assessing the gut fullness of the transparent shrimps provided a rapid way of estimating feeding activity and showed that feeding took place mainly at night

Principles to Guide the Office of Legal Counsel

Former members of Office of Legal Counsel ( OLC ) in the Department of Justice offer guidance for their successors. Among the document\u27s recommendations are suggestions that the OLC provide an accurate and honest appraisal of applicable law, even if that advice will constrain the administration’s pursuit of desired policies; and publicly disclose its written legal opinions in a timely manner, absent strong reasons for delay or nondisclosure

Management for Adaptation to Climate Change : mid-term review of a project implemented by Total Land Care, Malawi

This Noragric Report was commissioned by the Norwegian Agency for Development Cooperation (Norad) under the framework agreement with UMB which is administrated by Noragric