Synthesis of High Sn Content GeSiSn (0.1 < < 0.22) Semiconductors on Si for MWIR Direct Band Gap Applications.

A systematic effort has been described to grow ternary GeSiSn semiconductors on silicon with high Sn concentrations spanning the 9.5-21.2% range.

A Rare Pelvic "Mass-Querader": Acute Urinary Retention Secondary to Hematocolpos in a Preadolescent Patient.

We report a case of acute urinary retention in an adolescent female secondary to hematocolpos. A 13-year-old female presented to the emergency department with acute urinary retention and suprapubic abdominal pain for 24 hours. She denied menstruation or sexual history.

Rare External Jugular Vein Pseudoaneurysm.

External jugular vein pseudoaneurysm is a very rare cause of a neck mass due to the low pressure venous system. This case demonstrates a 27-year-old female who presented to the emergency department with a non-tender, compressible, left-sided neck mass that enlarged with valsalva and talking, and intermittent paresthesias. Upon workup, she was diagnosed with an external jugular vein pseudoaneurysm.

Top 10 evidence-based countermeasures for night shift workers.

Emergency edicine providers are responsible for ensuring the emergency department is staffed 24 hours a day. As such, providers must efficiently transition between day, swing and night shift on an almost weekly basis. There is no formal education in medical school or residency on how to approach the transition to and from night shift, remain alert and productive and maximise sleep during the day.

Effectiveness of Ultrasound-Guided Platelet-Rich Plasma Injections in Relieving Sacroiliac Joint Dysfunction.

Objective: The aim of the study was to investigate the efficacy of ultrasound-guided platelet-rich plasma in reducing sacroiliac joint disability and pain.

Design: Prospective nonrandomized interventional study analyzing 50 patients with low back pain secondary to sacroiliac joint dysfunction. Platelet-rich plasma was injected into the sacroiliac joint under ultrasound guidance.

Use of Ultrasound-Guided Platelet-Rich Plasma Injection of the Sacroiliac Joint as a Treatment for Chronic Low Back Pain.

Back pain and its associated complications are of increasing importance among military members. The sacroiliac joint (SIJ) is a common source of chronic low back pain (LBP) and functional disability. Many patients suffering from chronic LBP utilize opioids to help control their symptoms.

Fabrication of Ge:Ga Hyperdoped Materials and Devices Using CMOS-Compatible Ga and Ge Hydride Chemistries.

We report a versatile chemical vapor deposition (CVD) method to dope Ge films with Ga atoms in situ over a wide concentration range spanning from 3 × 10 to 2.7 × 10 cm. The method introduces a stable and volatile Ga hydride [DGaN(CH)] that reacts readily with GeH to deliver Ga dopants controllably and systematically at complementary metal-oxide-semiconductor compatible ultralow temperatures of ∼360 °C.

Synthesis and Structural and Optical Properties of Ga(AsP)Ge and (GaP)Ge Semiconductors Using Interface-Engineered Group IV Platforms.

Epitaxial synthesis of Ga(AsP)Ge alloys on Si(100) substrates is demonstrated using chemical vapor deposition reactions of [DGaN(CH)] with P(GeH) and As(GeH) precursors. These compounds are chosen to promote the formation of GaAsGe and GaPGe building blocks which interlink to produce the desired crystalline product. Ge-rich (GaP)Ge analogues have also been grown with tunable Ge contents up to 90% by reactions of P(GeH) with [DGaN(CH)] under similar deposition protocols.

Natural history and histology in a rat model of laser-induced photothrombotic retinal vein occlusion.

Purpose: To observe temporal changes in retinal physiology and histology in a rat model of laser-induced retinal vein occlusion (RVO).

Methods: Ophthalmoscopy, fundus photography, and fluorescein angiography (FA) were performed following laser-induced central retinal vein occlusion (CRVO) and branch retinal vein occlusion (BRVO) immediately after laser treatment and at 3 and 6 hr and 2, 4, 7, 14, and 21 days. Retinal histology was examined at 4, 7, 14, and 21 days.