Observations of an Energetically Isolated Quiet Sun Transient: Evidence of Quasi-Steady Coronal Heating

Increasing evidence for coronal heating contributions from cooler solar atmospheric layers, notably quiet Sun (QS) conditions, challenges standard solar atmospheric descriptions of bright transition region (TR) emission. As such, questions to the role of dynamic QS transients in contributing to the total coronal energy budget are elevated. Using observations from the {\it Atmospheric Imaging Assembly} and {\it Heliosemic Magnetic Imager} on board the {\it Solar Dynamics Observatory}, and numerical model extrapolations of coronal magnetic fields, we investigate a dynamic QS transient energetically isolated to the TR and extruding from a common footpoint shared with two heated loop arcades. A non-casual relationship is established between episodic heating of the QS transient and wide-spread magnetic field re-organization events, while evidence is found favoring a magnetic topology typical of eruptive processes. Quasi-steady interchange reconnection events are implicated as a source of the transient's visibly bright radiative signature. We consider the QS transient's temporally stable ($\approx$\,35\,min) radiative nature occurs as a result of the large-scale magnetic field geometries of the QS and/or relatively quiet nature of the magnetic photosphere, which possibly act to inhibit energetic buildup processes required to initiate a catastrophic eruption phase. This work provides insight to the QS's thermodynamic and magnetic relation to eruptive processes quasi-steadily heating a small-scale dynamic and TR transient. This work elevates arguments of non-negligible coronal heating contributions from cool atmospheric layers in QS conditions, and increases evidence for solar wind mass feeding of dynamic transients therein.Comment: 13 pages, 9 figure

Acting without expectations.

This thesis examines my preparation for performing Leland Cunningham in Blues for an Alabama Sky by Pearl Cleage. Using the motif of personal expectations, I explore how my ideas of performance have become unbalanced. I evaluate the origin of these performance expectations and discuss how they influenced this particular process. After considering my early career, graduate school experience, and character preparation, I use the final chapter to explore the debilitating nature of these expectations. I consider how and why I can no longer accept this frame work of unrealistic performance expectations; and how through this process I have reconsidered pursuing acting as a primary career but as meaningful art

Statutory Claims under ERISA: Is Arbitration the Appropriate Forum

The Employment Retirement Income Security Act of 1974 (ERISA) 2 provides a regulatory scheme for the myriad of employee benefit plans that affect so many workers and their families today. 3 One ERISA issue is whether claims under the Act may be arbitrated or if they must be heard in a judicial forum. The Supreme Court has not yet spoken on this issue, but the district court in Southside Internists Group PC Money Purchase Pension Plan v. Janus Capital Corp. relied on the Supreme Court\u27s determinations of arbitrability in various other cases 4 to conclude that ERISA claims may be arbitrated

Carpal tunnel syndrome

This issue of eMedRef provides information to clinicians on the pathophysiology, diagnosis, and therapeutics of carpal tunnel syndrome

The use of email as a component of adult stammering therapy : a preliminary report

In West Glasgow email has evolved from a rapid means of arranging therapy appointments with adults who stammer into a medium for exchange of therapeutic messages with some clients. Since 2004, sixteen clients have used email to communicate as part of their therapy programme. The benefits include improving access to services, supporting speech change, facilitating lasting personal growth, improving clinical decision-making, equalizing the therapist-client relationship and enhancing caseload management. Although this experience suggests that email is appropriate for stammering therapy, the effectiveness and ethics of, and the rationale for, clinical practice that includes email need careful consideration. Further research is required to formally evaluate the client experience

Objectives and Progress on Integrated Vehicle Ground Vibration Testing for the Ares Launch Vehicles

As NASA begins design and development of the Ares launch vehicles to replace the Space Shuttle and explore beyond low Earth orbit, Integrated Vehicle Ground Vibration Testing (IVGVT) will be a vital component of ensuring that those vehicles can perform the missions assigned to them. A ground vibration test (GVT) is intended to measure by test the fundamental dynamic characteristics of launch vehicles during various phases of flight. During the series of tests, properties such as natural frequencies, mode shapes, and transfer functions are measured directly. This data is then used to calibrate loads and control systems analysis models for verifying analyses of the launch vehicle. The Ares Flight & Integrated Test Office (FITO) will be conducting IVGVT for the Ares I crew launch vehicle at Marshall Space Flight Center (MSFC) from 2011 to 2012 using the venerable Test Stand (TS) 4550, which supported similar tests for the Saturn V and Space Shuttle vehicle stacks

How best to treat UTIs in women who breastfeed?

It's unclear, as no studies have specifically evaluated therapies for uncomplicated urinary tract infections (UTIs) in breastfeeding women. However, trimethoprim/sulfamethoxazole (TMP/SMX), b-lactam antibiotics, nitrofurantoin, and fluoroquinolones all produce cure rates of 78% to 95% for uncomplicated UTIs in women who aren't breastfeeding, and all appear to be equivalent (strength of recommendation [SOR]: A, a systematic review). Women who take TMP/SMX develop drug concentrations in breast milk that are below recommended maximum safe levels for infants who don't have glucose-6-phosphate dehydrogenase (G6PD) deficiency (SOR: B, a small observational study and expert opinion); treatment with nitrofurantoin and ciprofloxacin also produces low levels in breast milk (SOR: C, extrapolations from small observational studies and expert opinion). (Though in the case of nitrofurantoin, this does not include patients with G6PD deficiency.) Some antibiotics taken by breastfeeding mothers may occasionally be associated with adverse effects in their infants: TMP/SMX may cause poor feeding; amoxicillin and cephalexin may cause diarrhea; nitrofurantoin may cause diarrhea or, in infants with G6PD deficiency, hemolytic anemia; and ciprofloxacin may cause pseudomembranous colitis in infants and green teeth in neonates (SOR: C, case reports and expert opinion)

Mid-infrared signatures of hydroxyl containing water clusters: Infrared laser Stark spectroscopy of OH–H2O and OH(D2O)n (n = 1-3)

Small water clusters containing a single hydroxyl radical are synthesized in liquid helium droplets. The OH–H2O and OH(D2O)n clusters (n = 1-3) are probed with infrared laser spectroscopy in the vicinity of the hydroxyl radical OH stretch vibration. Experimental band origins are qualitatively consistent with ab initio calculations of the global minimum structures; however, frequency shifts from isolated OH are significantly over-predicted by both B3LYP and MP2 methods. An effective Hamiltonian that accounts for partial quenching of electronic angular momentum is used to analyze Stark spectra of the OH–H2O and OH–D2O binary complexes, revealing a 3.70(5) D permanent electric dipole moment. Computations of the dipole moment are in good agreement with experiment when large-amplitude vibrational averaging is taken into account. Polarization spectroscopy is employed to characterize two vibrational bands assigned to OH(D2O)2, revealing two nearly isoenergetic cyclic isomers that differ in the orientation of the non-hydrogen-bonded deuterium atoms relative to the plane of the three oxygen atoms. The dipole moments for these clusters are determined to be approximately 2.5 and 1.8 D for “up-up” and “up-down” structures, respectively. Hydroxyl stretching bands of larger clusters containing three or more D2O molecules are observed shifted approximately 300 cm−1 to the red of the isolated OH radical. Pressure dependence studies and ab initio calculations imply the presence of multiple cyclic isomers of OH(D2O)3.Fil: Hernández, Federico Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina. University of Georgia; Estados UnidosFil: Brice, Joseph T.. University of Georgia; Estados UnidosFil: Leavitt, Christopher M.. University of Georgia; Estados UnidosFil: Liang, Tao. University of Georgia; Estados UnidosFil: Raston, Paul L.. James Madison University. Department of Chemistry and Biochemistry; Estados UnidosFil: Pino, Gustavo Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; ArgentinaFil: Douberly, Gary E.. University of Georgia; Estados Unido