Clinical Importance of Transthoracic Echocardiography with Direct Input from Treating Physicians.

Background: The recent report that appropriately performed echocardiographic examinations result in active changes in management in only one third of patients has challenged the validity of current appropriate use criteria. Limited information exists about the clinical importance of transthoracic echocardiography (TTE) to guide management and rule out important alternative pathology.

Methods: The clinical impact of inpatient TTE performed at the Mayo Clinic over a 20-week period between October 14, 2013, and March 3, 2014, was investigated.

Feasibility of Using Low-Cost Motion Capture for Automated Screening of Shoulder Motion Limitation after Breast Cancer Surgery.

Objective: To determine if a low-cost, automated motion analysis system using Microsoft Kinect could accurately measure shoulder motion and detect motion impairments in women following breast cancer surgery.

Design: Descriptive study of motion measured via 2 methods.

Setting: Academic cancer center oncology clinic.

Observation of hole accumulation in Ge/Si core/shell nanowires using off-axis electron holography.

Hole accumulation in Ge/Si core/shell nanowires (NWs) has been observed and quantified using off-axis electron holography and other electron microscopy techniques. The epitaxial [110]-oriented Ge/Si core/shell NWs were grown on Si (111) substrates by chemical vapor deposition through the vapor-liquid-solid growth mechanism. High-angle annular-dark-field scanning transmission electron microscopy images and off-axis electron holograms were obtained from specific NWs.

Spreading of liquid AuSi on vapor-liquid-solid-grown Si nanowires.

Vapor-liquid-solid growth of high-quality Si nanowires relies on the stability of the liquid metal seed. In situ transmission electron microscopy shows that liquid AuSi seed spreads along the sidewalls of Si nanowires for some growth conditions. This liquid thin film phase separates to form solid Au clusters as the nanowire is quenched below the solidus temperature.

Kinetically induced kinking of vapor-liquid-solid grown epitaxial si nanowires.

Epitaxial Si nanowires grown from Au seeds using the vapor-liquid-solid method begin growing normal to the Si(111) substrate atop a tapered base. After a kinetically determined length, the NWs may kink away from [111] to another crystallographic direction. The smallest NWs prefer growth along 110 while larger Si NWs choose either 111 or 112 based on whether growth conditions favor Au-free sidewalls.