A Method to Evaluate Orientation-Dependent Errors in the Center of Contrast Targets Used with Terrestrial Laser Scanners.

Terrestrial laser scanners (TLS) are portable dimensional measurement instruments used to obtain 3D point clouds of objects in a scene. While TLSs do not require the use of cooperative targets, they are sometimes placed in a scene to fuse or compare data from different instruments or data from the same instrument but from different positions. A contrast target is an example of such a target; it consists of alternating black/white squares that can be printed using a laser printer.

Robust discrimination between closely related species of salmon based on DNA fragments.

Closely related species of Salmonidae, including Pacific and Atlantic salmon, can be distinguished from one another based on nucleotide sequences from the cytochrome c oxidase sub-unit 1 mitochondrial gene (COI), using ensembles of fragments aligned to genetic barcodes that serve as digital proxies for the relevant species. This is accomplished by exploiting both the nucleotide sequences and their quality scores recorded in a FASTQ file obtained via Next Generation (NextGen) Sequencing of mitochondrial DNA extracted from Coho salmon caught with hook and line in the Gulf of Alaska. The alignment is done using MUSCLE (Muscle 5.

Dynamic vapor microextraction of ignitable liquid from casework containers.

Dynamic vapor microextraction (DVME) is a headspace concentration method that can be used to collect ignitable liquid (IL) from fire debris onto chilled adsorbent capillaries. Unlike passive headspace concentration onto activated carbon strips (ACSs) that must be eluted with a toxic solvent (carbon disulfide), DVME employs a relatively benign solvent (acetone) to recover the adsorbed IL residue, and each headspace collection is monitored for breakthrough. Here, for the first time, we extend DVME to casework containers while exploring a realistic range of oven temperatures and collection volumes.

Children's Hospital Transfers From Referring Emergency Departments: Which Patients Bypassed the Pediatric Emergency Department?

Objectives: Children are increasingly transferred from emergency departments (EDs) to children's hospitals for inpatient care. The existing literature on the use of direct admission (DA) specifically among pediatric patients transferred from referring EDs remains sparse.The objective of this study was to identify demographic, clinical, and contextual factors associated with the use of direct-to-inpatient versus ED-to-inpatient admission among patients transferred to children's hospitals from EDs.

Generative Adversarial Network Performance in Low-Dimensional Settings.

A generative adversarial network (GAN) is an artifcial neural network with a distinctive training architecture, designed to create examples that faithfully reproduce a target distribution. GANs have recently had particular success in applications involving high-dimensional distributions in areas such as image processing. Little work has been reported for low dimensions, where properties of GANs may be better identifed and understood.

Variance estimation in tests of clustered categorical data with informative cluster size.

In the analysis of clustered data, inverse cluster size weighting has been shown to be resistant to the potentially biasing effects of informative cluster size, where the number of observations within a cluster is associated with the outcome variable of interest. The method of inverse cluster size reweighting has been implemented to establish clustered data analogues of common tests for independent data, but the method has yet to be extended to tests of categorical data. Many variance estimators have been implemented across established cluster-weighted tests, but potential effects of differing methods on test performance has not previously been explored.

Interrater Reliability of the Pediatric Neuromuscular Recovery Scale for Spinal Cord Injury.

In synergy with the mounting scientific evidence for the capacity of recovery after spinal cord injury (SCI) and training, new evidence-based therapies advancing neuromuscular recovery are emerging. There is a parallel need for outcome instruments that specifically address recovery. The Pediatric Neuromuscular Recovery Scale (Pediatric NRS) is one example with established content validity to assess neuromuscular capacity within task performance.

Characteristics of accidental versus abusive pediatric burn injuries in an urban burn center over a 14-year period.

The aim of this study was to determine the demographic and associated characteristics of abusive burn injuries in children. Understanding the characteristics of burn injuries may help clinicians differentiate and recognize abusive injuries. We conducted a retrospective study of patients less than 5 years old admitted to an urban burn center from March 1999 to July 2013.

A log rank test for clustered data with informative within-cluster group size.

The log rank test is a popular nonparametric test for comparing survival distributions among groups. When data are organized in clusters of potentially correlated observations, adjustments can be made to account for within-cluster dependencies among observations, eg, tests derived from frailty models. Tests for clustered data can be further biased when the number of observations within each cluster and the distribution of groups within cluster are correlated with survival times, phenomena known as informative cluster size and informative within-cluster group size.

Comparison of Blood Viscoelasticity in Pediatric and Adult Cardiac Patients.

Evidence is accumulating that blood flow patterns in the cardiovascular system and in cardiovascular devices do, in some instances, depend on blood viscoelasticity. Thus, to better understand the challenges to providing circulatory support and surgical therapies for pediatric and adult patients, viscous and elastic components of complex blood viscoelasticity of 31 pediatric patients were compared to those of 29 adult patients with a Vilastic-3 rheometer. A random effects model with categorical age covariates found statistically significant differences between pediatric and adult patients for log viscosity (p = 0.

Poor ED lab tracking and reporting system results in sepsis treatment delay.

This case underscores the need to have reliable systems in place to ensure that EDs have: policies in place fore re-assessing patients at discharge, a procedure for describing how vital signs are assessed prior to disposition and how abnormal findings are addressed, a requirement to document the review of vital signs prior to disposition; a requirement for documenting the rationale for continuing with the planned course of action if the vital signs and lab reports that are subsequently reported show anything that is abnormal. Patient re-evaluation is central to high-quality care and to strengthen the physician's ability to make an accurate and timely diagnosis in the ED setting. It is important to understand the significance of ongoing patient monitoring and reassessment, maintaining reliable diagnostic tracking and reporting systems, managing timely call-back systems, and ensuring that the ED team of staff and physicians are well-trained and oriented to hospital policies, procedures, and technology.

The role of out-of-hospital cardiac arrest in predicting hospital mortality for percutaneous coronary interventions in the Clinical Outcomes Assessment Program.

Published mortality models for percutaneous coronary intervention (PCI), including the Clinical Outcomes Assessment Program (COAP) model, have not considered the effect of out-ofhospital cardiac arrest. The primary objective of this study was to determine if the inclusion of out-of-hospital cardiac arrest altered the COAP mortality model for PCI. The COAP PCI database contains extensive demographic, clinical, procedural and outcome information, including out-of-hospital cardiac arrest, which was added to the data collection form in 2006.