New search for the neutron electric dipole moment

We report on a new experiment to search for the neutron electric dipole moment which has the potential ta lower the current limit by a factor of 50 to 100. A unique approach to this measurement is described including the results of recent measurements at LANSCE of the mass diffusion coefficient for 3He in superfluid 4He

Prospectus, April 27, 2016

Course changes lined up for coming semester; Teenager receives degree at Parkland before graduating high school, How America\u27s Electoral College works, McDonnell case at high court will test reach of bribery laws (AP), Illinois bills would limit mentally ill from owning guns (AP), Ex-NFL QB Johnny Manziel indicted in Texas (AP), Saudi prince unveils plans to welcome tourists (AP), Tourist in yoga airplane altercation allowed to fly to Korea (AP), Club Latino hosts bubble soccer (photo essay);https://spark.parkland.edu/prospectus_2016/1013/thumbnail.jp

Noise suppression using symmetric exchange gates in spin qubits

We demonstrate a substantial improvement in the spin-exchange gate using symmetric control instead of conventional detuning in GaAs spin qubits, up to a factor-of-six increase in the quality factor of the gate. For symmetric operation, nanosecond voltage pulses are applied to the barrier that controls the interdot potential between quantum dots, modulating the exchange interaction while maintaining symmetry between the dots. Excellent agreement is found with a model that separately includes electrical and nuclear noise sources for both detuning and symmetric gating schemes. Unlike exchange control via detuning, the decoherence of symmetric exchange rotations is dominated by rotation-axis fluctuations due to nuclear field noise rather than direct exchange noise.Comment: 5 pages main text (4 figures) plus 5 pages supplemental information (3 figures

Compositional variation of laurite at Union Section in the Western Bushveld Complex

One hundred and forty five grains of laurite in polished sections of samples from one borehole through the major chromitite layers and some chromite-bearing silicate rocks of the Lower and Critical Zones of the western Bushveld Complex at Union Section have been located and analysed by scanning electron microscope. Ninety per cent by number of laurite grains are included within chromite, with the remainder being located on chromite-silicate grain boundaries, and in interstitial silicates and sulphides. The composition of laurite shows considerable variation within individual samples. Furthermore, there is no apparent correlation between whole-rock Ru and Cr contents in our samples, arguing against a model whereby laurite exsolved from the chromite lattice. Based on a well-defined correlation between whole-rock S, PPGE (Rh+Pt+Pd), and IPGE (Os+Ir+Ru) contents, we favour a mechanism whereby laurite crystallized from segregating sulphide melt and was subsequently entrapped by growing chromite grains

Prospectus, October 14, 2015

New RN bridge program for paramedics the first of its kind in the state, Parkland working to head off campus violence, Many students want more options in the cafeteria, Monument to honor King planned for Georgia’s Stone Mountain(AP), Students return to Oregon college after shooting(AP), Interstate 95 reopening in South Carolina after record flood(AP), In Review: A Photographer\u27s life of Love and War, Obama: Clinton made mistake; security not endangered(AP), That New York twang: Nashville calls on Big apple schools(AP), Obama gives Kanye West some tips for his presidential run(AP), Injuries just another challenge for Cobra baseball team, Records: Illini athletics part of $1.5M vehicle program(AP),https://spark.parkland.edu/prospectus_2015/1020/thumbnail.jp

Can Electronic Health Records Systems Support New Payment Methods for Health Centers?

This study assessed the feasibility and usefulness of combining electronic health record (EHR) data with federal cost report data for the purposes of: 1) quantifying the provision of enabling services; and 2) for use as the basis of community health center payment rate-setting. The study used EHR data derived from the Center for Primary Care Informatics to isolate enabling services and perform the end-to-end analysis that might be required to develop or evaluate reimbursement rates. The study revealed that data extracted from federal cost reports combined with data from the EHR fall short of providing the information required to reasonably develop new rate setting approaches or evaluate existing rates as they might be applied to community health centers. Specifically, key findings include: Use of internal, center-specific codes (for example, in CPT fields) complicates the translation into relative value units (RVUs) and the aggregation of comparable data across health centers. Enabling services are difficult to quantify. Vague and inconsistent position titles lead to potential inaccuracies in the allocation of expenses. The current funding environment deters capture of new information. This study raises fundamental questions about how to quantify (let alone how to reimburse) the true value associated with the community health center model of care. The study recommends tailoring EHR products to better capture the unique services provided by health centers and their effective management of high-risk patients. Fully moving to value-based reimbursement models will likely require that health centers adapt workflow to ensure that additional critical information (e.g., social determinants of health) is properly entered as structured data and not merely as scanned notes and other documentatio

Discovery of Large-Scale Gravitational Infall in a Massive Protostellar Cluster

We report Mopra (ATNF), Anglo-Australian Telescope, and Atacama Submillimeter Telescope Experiment observations of a molecular clump in Carina, BYF73 = G286.21+0.17, which give evidence of large-scale gravitational infall in the dense gas. From the millimetre and far-infrared data, the clump has mass ~ 2 x 10^4 Msun, luminosity ~ 2-3 x 10^4 Lsun, and diameter ~ 0.9 pc. From radiative transfer modelling, we derive a mass infall rate ~ 3.4 x 10^-2 Msun yr-1. If confirmed, this rate for gravitational infall in a molecular core or clump may be the highest yet seen. The near-infrared K-band imaging shows an adjacent compact HII region and IR cluster surrounded by a shell-like photodissociation region showing H2 emission. At the molecular infall peak, the K imaging also reveals a deeply embedded group of stars with associated H2 emission. The combination of these features is very unusual and we suggest they indicate the ongoing formation of a massive star cluster. We discuss the implications of these data for competing theories of massive star formation.Comment: v1: 23 pages single-column, 6 figures (some multipart) at end v2: 14 pages 2-column, 6 figures interspersed v3: edited to referee's comments with new sections and new figures; accepted to MNRAS, 20 pages 2-column, 8 figures (some multipart) intersperse