Messung der Strukturfunktion F 2 bei kleinen Bjorken-x und kleinen Impulsüberträgen mit dem VLQ-Spektrometer des H1-Detektors

First results on the proton structure function F2(x,Q2) in a kinematic domain between photoproduction and Deep Inelastic Scattering (DIS) at low Q2 and x measured with the H1 detector at HERA at a center-of-mass energy of s1/2 = 318 GeV are presented. The measurement was made possible by the VLQ (Very Low Q2) spectrometer, which was integrated in the H1-detector in 1998. The VLQ spectrometer which detects electrons at very small scattering angles consists of two identical modules each containing a tungsten-scintillator sandwich calorimeter and a silicon strip tracker. The calorimeter provides a trigger signal, which allows an independent measurement of the inclusive cross section. The analysis is based on events recorded in April 1999. This sample corresponds to an integrated luminosity of 235 nb-1. The proton structure function F2(x,Q2) was measured for Q2 values of 0.13 GeV2, 0.17 GeV2 and 0.22 GeV2 in dependence of x. With this measurement the VLQ opens a new kinematic domain for H1. Previous measurements were limited in Q2 to values greater than 0.35 GeV2

The “Minimum Information about an ENvironmental Sequence” (MIENS) specification

We present the Genomic Standards Consortium’s (GSC) “Minimum Information about an ENvironmental Sequence” (MIENS) standard for describing marker genes. Adoption of MIENS will enhance our ability to analyze natural genetic diversity across the Tree of Life as it is currently being documented by massive DNA sequencing efforts from myriad ecosystems in our ever-changing biospher

Minimum information about a marker gene sequence (MIMARKS) and minimum information about any (x) sequence (MIxS) specifications

Here we present a standard developed by the Genomic Standards Consortium (GSC) for reporting marker gene sequences—the minimum information about a marker gene sequence (MIMARKS). We also introduce a system for describing the environment from which a biological sample originates. The 'environmental packages' apply to any genome sequence of known origin and can be used in combination with MIMARKS and other GSC checklists. Finally, to establish a unified standard for describing sequence data and to provide a single point of entry for the scientific community to access and learn about GSC checklists, we present the minimum information about any (x) sequence (MIxS). Adoption of MIxS will enhance our ability to analyze natural genetic diversity documented by massive DNA sequencing efforts from myriad ecosystems in our ever-changing biosphere

Made to Fit: How Practices Vary As They Diffuse

We extend research on the diffusion of corporate practices by providing a framework for studying practice variation during diffusion processes. Specifically, we theorize about how population-level mechanisms of diffusion link with organization-level mechanisms of implementation that lead to the adaptation of practices. We also identify technical, cultural, and political elements of fit (or misfit) between diffusing practices and adopters and analyze how the process of attaining fit across these elements can trigger different patterns of adaptation