BACKGROUND AND PURPOSE The Peditrol is a novel hands-free irrigation device that delivers a bolus of irrigant through the ureteroscope when the foot pedal is deployed. The purpose of this study was to compare the flow and pressures created by the Peditrol with those of commonly used methods of irrigation. MATERIALS AND METHODS Flows through a flexible 6.9F Olympus ureteroscope (F-URS) and a 7...

This is the second part of our functional genomics course. This course will introduce you to common technologies in functional genomics studies, including microarrays and next generation sequencing (NGS), with a special focus on RNA-sequencing (RNA-seq). We will look at important considerations when designing your experiments, data analysis methods, and discuss when to use one technology over a...

In accordance with Article 6.2 of the Environmental Noise Directive 2002/49/EC (END), the European Commission developed Common NOiseaSSessment methOdS (CNOSSOS-EU) for road, railway, aircraft and industrial noise to be used after adoption by the Member States for the pur-pose of strategic noise mapping as required by Article 7 of the END. The development of CNOSSOS-EU was co-ordinated b...

When dosed appropriately on carefully chosen patients, methadone can be a very safe and effective choice in managing chronic pain. Many authors have discussed important issues surrounding patient selection, drug interactions, screening for QTc prolongation and monitoring. This article will focus on the dosing dilemma that exists after the patient is deemed an appropriate candidate for methadone...

Migration in the angle domain creates seismic images for different reflection angles. We present a method for computing angle-domain common-image gathers from seismic images obtained by depth migration using wavefield continuation. Our method operates on prestack migrated images and produces the output as a function of the reflection angle, not as a function of offset ray parameter as in other ...

This study investigates the relation between two common localisation methods in ensemble Kalman filter (EnKF) systems: covariance localisation and local analysis. Both methods are popular in large-scale applications with the EnKF. The case of local observations with non-correlated errors is considered. Both methods are formulated in terms of tapering of ensemble anomalies, which provides a fram...

We consider the problem of finding for a given N -tuple of polynomials (real or complex) the closest N -tuple that has a common divisor of degree at least d. Extended weighted Euclidean seminorm of the coefficients is used as a measure of closeness. Two equivalent representations of the problem are considered: (i) direct parameterization over the common divisors and quotients (image representat...

There are two dominant conceptual models of common property resource management: a capitalist model and a socialist model. The capitalist model argues that resources that are held commonly are subject to degradation. Hence, privatization of public resources is the only viable solution to the problem. The socialist model explains that economic poverty caused by inequitable distribution of resour...