High-Statistics Measurement of the Cosmic-Ray Electron Spectrum with H.E.S.S.

Owing to their rapid cooling rate and hence loss-limited propagation distance, cosmic-ray electrons and positrons (CRe) at very high energies probe local cosmic-ray accelerators and provide constraints on exotic production mechanisms such as annihilation of dark matter particles. We present a high-statistics measurement of the spectrum of CRe candidate events from 0.3 to 40 TeV with the High Energy Stereoscopic System, covering 2 orders of magnitude in energy and reaching a proton rejection power of better than 10^{4}.

Career Impact of Palliative Care Fellowship Training for Nurse Practitioners.

Postgraduate fellowship training for nurse practitioners (NP) in palliative care can ameliorate workforce shortages; however, currently there are few NP fellowships and little evidence about outcomes, such as retention in hospice and palliative nursing, job satisfaction, or professional contributions. To describe the impact of palliative care fellowship training on the careers of NP alumni. A survey was electronically distributed to all NP alumni of an interprofessional palliative care fellowship since adult and pediatric nursing cohorts were added (2009-2022).

Laboratory realization of relativistic pair-plasma beams.

Relativistic electron-positron plasmas are ubiquitous in extreme astrophysical environments such as black-hole and neutron-star magnetospheres, where accretion-powered jets and pulsar winds are expected to be enriched with electron-positron pairs. Their role in the dynamics of such environments is in many cases believed to be fundamental, but their behavior differs significantly from typical electron-ion plasmas due to the matter-antimatter symmetry of the charged components. So far, our experimental inability to produce large yields of positrons in quasi-neutral beams has restricted the understanding of electron-positron pair plasmas to simple numerical and analytical studies, which are rather limited.

Acceleration and transport of relativistic electrons in the jets of the microquasar SS 433.

SS 433 is a microquasar, a stellar binary system that launches collimated relativistic jets. We observed SS 433 in gamma rays using the High Energy Stereoscopic System (H.E.

Development of Objectives to Inform a National Standardized Primary Palliative Care Curriculum for Health Professions Students.

Despite recent educational advances, the need for a national standardized primary palliative care curriculum for health professions students remains evident. An interprofessional leadership team developed a set of core learning objectives built on previously published competencies. A survey was then sent to palliative care experts for feedback and consensus.