Workflow Interruptions and Effect on Study Interpretation Efficiency.

Background: Interruptions have been shown to adversely impact efficiency, accuracy, and patient safety.

Objective: To analyze the frequency and types of interruptions and effect on report interpretation efficiency.

Materials And Methods: A business process improvement team was consulted to make detailed recordings of the activities of the radiologists.

Impact of COVID vaccination rollout on the use of computed tomography venography for the assessment of cerebral venous sinus thrombosis.

Introduction: Cerebral venous sinus thrombosis (CVST) is rare; however, it has been observed in patients with vaccine-induced immune thrombotic thrombocytopaenia syndrome (VITT) following the use of adenovirus vector vaccines against COVID-19. Adverse vaccine effects have been heavily addressed in mainstream media, likely contributing to vaccination anxiety. This study aimed to assess how the vaccine rollout and media coverage has influenced the use of computed tomography venography (CTV) in an acute care setting of a tertiary hospital.

The Highly Frustrated 5d Double Perovskite Doppelgängers, SrLaMgReO and SrLaLiOsO. A Comparison including Isostructural LaLiReO.

The synthesis and characterization of the double perovskite SrLaLiOsO is presented. It is isostructural (2/) and isoelectronic (5d) with SrLaMgReO, which has been reported previously. The cell volumes are the same to within 1.

Combined Spatially Resolved Characterization of Antireflection and Antisoiling Coatings for PV Module Glass.

Characterization of photovoltaic (PV) module materials throughout different stages of service life is crucial to understanding and improving the durability of these materials. Currently the large-scale of PV modules (>1 m) is imbalanced with the small-scale of most materials characterization tools (≤1 cm). Furthermore, understanding degradation mechanisms often requires a combination of multiple characterization techniques.

Computed Tomography Angiography in the Assessment of Great Saphenous Vein as Conduit for Infrainguinal Bypass Surgery.

Introduction: The great saphenous vein (GSV) is commonly used as a conduit during infrainguinal bypass (IIB) and is usually well seen on computed tomography angiography (CTA) which is frequently performed for preoperative planning. In this study, we asked whether CTA could replace ultrasonography (US) as the primary mode of conduit assessment, by comparing GSV measurements for patients who underwent both CTA and US vein mapping prior to IIB.

Methods: All IIB that were completed in the six-and-a-half-year period from January 1, 2012, to July 31, 2018, at the authors' institution were examined.

Neurosurgical Flexible Probe Microscopy with Enhanced Architectural and Cytological Detail.

Background: Microscopic delineation and clearance of tumor cells at neurosurgical excision margins potentially reduce tumor recurrence and increase patient survival. Probe-based in vivo fluorescence microscopy technologies are promising for neurosurgical in vivo microscopy.

Objective: We sought to demonstrate a flexible fiberoptic epifluorescence microscope capable of enhanced architectural and cytological imaging for in vivo microscopy during neurosurgical procedures.

Spin-Density Wave as a Superposition of Two Magnetic States of Opposite Chirality and Its Implications.

A magnetic solid with weak spin frustration tends to adopt a noncollinear magnetic structure such as a cycloidal structure below a certain temperature and a spin-density wave (SDW) slightly above this temperature. The causes for these observations were explored by studying the magnetic structure of BaYFeO, which undergoes a SDW and a cycloidal phase transition below 48 and 36 K, respectively, in terms of the density functional theory calculations. We show that a SDW structure arises from a superposition of two magnetic states of opposite chirality, an SDW state precedes a chiral magnetic state because of the lattice relaxation, and whether a SDW is transversal or longitudinal is governed by the magnetic anisotropy of magnetic ions.

Myo-inositol reduces β-catenin activation in colitis.

Aim: To assess dietary myo-inositol in reducing stem cell activation in colitis, and validate pβ-catenin as a biomarker of recurrent dysplasia.

Methods: We examined the effects of dietary myo-inositol treatment on inflammation, pβ-catenin and pAkt levels by histology and western blot in IL-10 and dextran sodium sulfate-treated colitic mice. Additionally, we assessed nuclear pβ-catenin in patients treated with myo-inositol in a clinical trial, and in patients with and without a history of colitis-induced dysplasia.

Identifying the local structural units in LaBaMnO and BaYFeO through the neutron pair distribution function.

Neutron pair distribution function data are used to investigate the local structures of two oxygen deficient perovskites with simple cubic crystal structures. LaBaMnO is found to have alternating layers of MnO octahedra and MnO tetrahedra, making it similar to other members of the LaBaMnO series with smaller x values which have brownmillerite crystal structures. Our fitting results suggest that LaBaMnO is not locally similar to any one brownmillerite structure type but instead has a variety of intra-layer and inter-layer relationships.

Cubic Re (5d) Double Perovskites, BaMgReO, BaZnReO, and BaYReO: Magnetism, Heat Capacity, μSR, and Neutron Scattering Studies and Comparison with Theory.

Double perovskites (DP) of the general formula BaMReO, where M = Mg, Zn, and Y, all based on Re (5d, t), were synthesized and studied using magnetization, heat capacity, muon spin relaxation, and neutron-scattering techniques. All are cubic, Fm3̅m, at ambient temperature to within the resolution of the X-ray and neutron diffraction data, although the muon data suggest the possibility of a local distortion for M = Mg. The M = Mg DP is a ferromagnet, T = 18 K, with a saturation moment ∼0.

Synthesis, structure, and magnetic properties of novel B-site ordered double perovskites, SrLaMReO6 (M = Mg, Mn, Co and Ni).

Four new double perovskites, SrLaMReO(6) (M = Mg, Mn, Co, Ni) in which Re(5+) (5d(2)) is present, were prepared via conventional solid state reactions and characterized by X-ray and neutron powder diffraction, XANES, SQUID magnetometry, and muon spin relaxation (μSR). Synchrotron X-ray and neutron diffraction experiments confirmed that all compounds crystallize in the monoclinic P2(1)/n structure type, which consists of alternately corner-shared octahedra of MO(6) and ReO(6). Rietveld refinement results indicated anti-site mixing of less than 7% on the M/Re sites.

Partial spin ordering and complex magnetic structure in BaYFeO4: a neutron diffraction and high temperature susceptibility study.

The novel iron-based compound, BaYFeO4, crystallizes in the Pnma space group with two distinct Fe(3+) sites, that are alternately corner-shared [FeO5](7-) square pyramids and [FeO6](9-) octahedra, forming into [Fe4O18](24-) rings, which propagate as columns along the b-axis. A recent report shows two discernible antiferromagnetic (AFM) transitions at 36 and 48 K in the susceptibility, yet heat capacity measurements reveal no magnetic phase transitions at these temperatures. An upturn in the magnetic susceptibility measurements up to 400 K suggests the presence of short-range magnetic behavior at higher temperatures.

Magnetocaloric effect in AlFe2B2: toward magnetic refrigerants from earth-abundant elements.

AlFe2B2 was prepared by two alternative synthetic routes, arc melting and synthesis from Ga flux. In the layered crystal structure, infinite chains of B atoms are connected by Fe atoms into two-dimensional [Fe2B2] slabs that alternate with layers of Al atoms. As expected from the theoretical analysis of electronic band structure, the compound exhibits itinerant ferromagnetism, with the ordering temperature of 307 K.

Spin-glass behavior in LaFe(x)Co(2-x)P2 solid solutions: interplay between magnetic properties and crystal and electronic structures.

To explore the evolution of magnetic properties from ferromagnetic LaCo(2)P(2) to paramagnetic LaFe(2)P(2) (both of ThCr(2)Si(2) structure type) a series of mixed composition LaFe(x)Co(2-x)P(2) (x ≤ 0.5) has been comprehensively investigated by means of single-crystal and powder X-ray and neutron diffraction, magnetization and heat capacity measurements, Mössbauer spectroscopy, and electronic band structure calculations. The Curie temperature decreases from 132 K in LaCo(2)P(2) to 91 K in LaFe(0.

Synthesis of ThCr2Si2-type arsenides from Bi flux.

LaCo(2)As(2) can be synthesized as pure crystalline material by annealing a mixture of elements in Bi flux. The reaction, however, is accompanied by the incorporation of a small quantity of Bi into the structure and the formation of vacancies in the Co sublattice, which lead to substantial changes in structural and magnetic properties of the material.

Effect of copper metal on the yield of Sc3N@C80 metallofullerenes.

The yield of Sc3N@C80 metallofullerene and fullerene extract is dramatically increased via filling cored graphite rods with copper and Sc2O3 only; when compared to 100% Sc2O3 packed rods, improvements of factors of approximately 3 and approximately 5 have been achieved for Sc3N@C80 and fullerene extract produced, respectively, with the weight percent of Cu added to the rod affecting the type and amount of fullerene produced.

Chemically adjusting plasma temperature, energy, and reactivity (CAPTEAR) method using NOx and combustion for selective synthesis of Sc3N@C80 metallic nitride fullerenes.

Goals are (1) to selectively synthesize metallic nitride fullerenes (MNFs) in lieu of empty-cage fullerenes (e.g., C60, C70) without compromising MNF yield and (2) to test our hypothesis that MNFs possess a different set of optimal formation parameters than empty-cage fullerenes.

Results of bilateral combined hip and knee arthroplasty in very young patients with juvenile rheumatoid arthritis.

Introduction: We evaluated the long-term outcomes for combined, bilateral total knee and hip arthroplasty performed on a group of very young patients with juvenile rheumatoid arthritis.

Materials And Methods: Six consecutive patients with a mean age of 14 years at the time of hip replacement and 16 years at knee replacement were analyzed. Five of the six patients were wheelchair dependent pre-operatively.

Total knee arthroplasty in juvenile rheumatoid arthritis.

Background: There is a paucity of reports regarding the long-term results of total knee arthroplasty in patients with juvenile rheumatoid arthritis. The purpose of this study was to evaluate the outcome of total knee arthroplasty in patients with juvenile rheumatoid arthritis who had been followed for a minimum of twelve years.

Methods: Eight consecutive patients (fifteen knees) with juvenile rheumatoid arthritis underwent total knee arthroplasty at an average age of 16.