Nonlinear force-free coronal magnetic stereoscopy

Getting insights into the 3D structure of the solar coronal magnetic field have been done in the past by two completely different approaches: (1.) Nonlinear force-free field (NLFFF) extrapolations, which use photospheric vector magnetograms as boundary condition. (2.) Stereoscopy of coronal magnetic loops observed in EUV coronal images from different vantage points. Both approaches have their strength and weaknesses. Extrapolation methods are sensitive to noise and inconsistencies in the boundary data and the accuracy of stereoscopy is affected by the ability of identifying the same structure in different images and by the separation angle between the view directions. As a consequence, for the same observational data, the computed 3D coronal magnetic field with the two methods do not necessarily coincide. In an earlier work (Paper I) we extended our NLFFF optimization code by the inclusion of stereoscopic constrains. The method was successfully tested with synthetic data and within this work we apply the newly developed code to a combined data-set from SDO/HMI, SDO/AIA and the two STEREO spacecraft. The extended method (called S-NLFFF) contains an additional term that monitors and minimizes the angle between the local magnetic field direction and the orientation of the 3D coronal loops reconstructed by stereoscopy. We find that prescribing the shape of the 3D stereoscopically reconstructed loops the S-NLFFF method leads to a much better agreement between the modeled field and the stereoscopically reconstructed loops. We also find an appreciable decrease by a factor of two in the angle between the current and the magnetic field which indicates the improved quality of the force-free solution obtained by S-NLFFF.Comment: 9 pages, 7 figure

The International Labor Rights Fund to File a Suit Against U.S. Agency for Failure to Enforce its Own Laws

This document is part of a digital collection provided by the Martin P. Catherwood Library, ILR School, Cornell University, pertaining to the effects of globalization on the workplace worldwide. Special emphasis is placed on labor rights, working conditions, labor market changes, and union organizing.ILRF_The_International_Labor_Rights_Fund_to_File_a_Suit_Against_U_S__Agency_for_Failure_to_Enforce_its_Own_Laws.pdf: 19 downloads, before Oct. 1, 2020

An MLSA-based online scheme for the rapid identification of Stenotrophomonas isolates

An online scheme to assign Stenotrophomonas isolates to genomic groups was developed using the multilocus sequence analysis (MLSA), which is based on the DNA sequencing of selected fragments of the housekeeping genes ATP synthase alpha subunit (atpA), the recombination repair protein (recA), the RNA polymerase alpha subunit (rpoA) and the excision repair beta subunit (uvrB). This MLSA-based scheme was validated using eight of the 10 Stenotrophomonas species that have been previously described. The environmental and nosocomial Stenotrophomonas strains were characterised using MLSA, 16S rRNA sequencing and DNA-DNA hybridisation (DDH) analyses. Strains of the same species were found to have greater than 95% concatenated sequence similarity and specific strains formed cohesive readily recognisable phylogenetic groups. Therefore, MLSA appeared to be an effective alternative methodology to amplified fragment length polymorphism fingerprint and DDH techniques. Strains of Stenotrophomonas can be readily assigned through the open database resource that was developed in the current study (www.steno.lncc.br/)

The Role of Control Cards in Shaping Students' Citizenship in Schools

The rapid development of the times today is a challenge in building the character of students. The challenges faced by all nations related to the nature of citizenship have become national issues that require a comprehensive study to take strategic steps to overcome the problem. The application of control cards is one of the flagship programs owned by SMA Negeri Bernas Binsus Provinsi Riau, in building the character of its students. This study aims to explore and analyze the role of control cards in shaping the civic disposition of students at SMA Negeri Bernas Binsus Provinsi Riau. This research uses qualitative design with case study method. Data research techniques use observation, interviews and documentation. The results of this study show that, with the control card plays a role in forming civic disposition including (1) discipline, obeying applicable rules, and orderly, (2) responsibility is shown from the facts found by researchers that they must be ready and accept sanctions or punishments for actions they violate, (3) honesty, very instrumental in educating and accustoming students to always tell the truth,  They are required to always be mandated to school rules

Hollow rolling element bearings

A low mass rolling element with a lightweight core and hollow center was developed for use in bearings. The core is plated so as to provide a hard surface and increase the life and reliability of the high speed ball bearings

How Has Hospital Consolidation Affected the Price and Quality of Hospital Care?

Provides an overview of the wave of hospital consolidation in the 1990s and reviews the literature on its effects on the prices, costs, and quality of inpatient care. Analyzes the studies' findings and discusses implications for policy makers

Action Plan Items Related to EII Site Scores - Fiscal Year 2005

The Environmental Integrity Index (EII) was used to identify sites with at least a 13% decrease in environmental health in recent years. City of Austin teams with the potential to reverse the recent degradation in five problem areas, aquatic life, habitat, nutrients plus bacteria, nutrients alone, and litter, through structural and non-structural BMPs were identified. Program areas or teams addressing these areas are the surface water evaluation team, masterplan committee, community education, Austin Clean Water Program, and Keep Austin Beautiful programs. Primary and secondary site lists are provided for each of the teams.Waller Creek Working Grou