Strain-based room-temperature non-volatile MoTe ferroelectric phase change transistor.

The primary mechanism of operation of almost all transistors today relies on the electric-field effect in a semiconducting channel to tune its conductivity from the conducting 'on' state to a non-conducting 'off' state. As transistors continue to scale down to increase computational performance, physical limitations from nanoscale field-effect operation begin to cause undesirable current leakage, which is detrimental to the continued advancement of computing. Using a fundamentally different mechanism of operation, we show that through nanoscale strain engineering with thin films and ferroelectrics the transition metal dichalcogenide MoTe can be reversibly switched with electric-field-induced strain between the 1T'-MoTe (semimetallic) phase to a semiconducting MoTe phase in a field-effect transistor geometry.

Fabrication and 3D tomographic characterization of nanowire arrays and meshes with tunable dimensions from shear-aligned block copolymers.

We demonstrate a scalable method to create metallic nanowire arrays and meshes over square-centimeter-areas with tunable sub-100 nm dimensions and geometries using the shear alignment of block copolymers. We use the block copolymer poly(styrene)-b-poly(2-vinyl pyridine) (PS-P2VP) since the P2VP block complexes with metal salts like Na2PtCl4, thereby enabling us to directly pattern nanoscale platinum features. We investigate what shear alignment processing parameters are necessary to attain high quality and well-ordered nanowire arrays and quantify how the block copolymer's molecular weight affects the resulting Pt nanowires' dimensions and defect densities.

Functional Neurologic Symptom Disorder in Children: Clinical Features, Diagnostic Investigations, and Outcomes at a Tertiary Care Children's Hospital.

Objective: To describe the presenting symptoms and short-term outcomes of children diagnosed with functional neurologic symptom disorder and to compare the demographic and clinical characteristics of children who received neurodiagnostic testing to those who did not.

Study Design: Single center, retrospective review of 222 children who presented to the emergency department of a children's hospital, and diagnosed with functional neurologic symptom disorder, between 2010 and 2015.

Results: Out of 222 visits (females = 156, African Americans = 130, mean age = 13.

Acute Onset Dystonia after Infarction of Premotor and Supplementary Motor Cortex.

Objective: Poststroke dystonia is the second most common movement disorder after chorea and often has a delayed manifestation. Lesions of the contralateral lenticular nucleus, particularly the putamen, have been implicated in the pathogenesis of dystonia. We present an unusual case of rapid onset of focal dystonia of the left upper extremity, which developed after infarction of the right premotor cortex (PMC) and the supplementary motor area (SMA).

Inflammatory response in preterm infants is induced early in life by oxygen and modulated by total parenteral nutrition.

The i.v. lipid emulsion (LIP) is a source of oxidants, which may stimulate inflammation.