BACKGROUND Walled-off pancreatic necrosis (WOPN) is an important complication of acute pancreatitis that is diagnosed by imaging modalities such as endoscopic ultrasound (EUS) or magnetic resonance imaging (MRI), which can clearly visualize necrotic debris. The effectiveness of abdominal ultrasound (USG) in detecting solid debris in WOPN is not clear. METHODS A total of 52 patients (37 males,...

The objective of this paper is to provide a general overview of the influence of wildland fires on the erosional processes common to the forested landscapes of the western United States. Wildfire can accelerate erosion rates because vegetation is an important factor controlling erosion. There can be great local and regional differences, however, in the relative importance of different erosional...

Robust prediction of the motion of debris from explosions is critical to the estimation of separation distances, fragment density, and debris lethality in explosive safety hazard analysis. Debris dispersion models have been developed and applied to many specific types of hazardous debris (ranging from masonry, concrete, structural steel elements, soil and rock ejecta, to bomb fragments). These ...

A retrospective review was done to evaluate the importance of degenerative endometrial debris accompanied with benign-looking endometrial cells in Papanicolaou (Pap) smears. In total, 306 patients were divided into 2 groups according to the absence (group 1) or presence (group 2) of endometrial debris. Eighty-one (26.5%) patients received histologic follow-up. The biopsy rate for premenopausal ...

In 1996 typhoon Herb struck the central Taiwan area, causing severe debris flow in many subwatersheds of the Chen-You-Lan river watershed. More severe cases of debris flow occurred following Chi-Chi earthquake, 1999. In order to identify the potentially affected area and its severity, the ability to simulate the flow route of debris is desirable. In this research numerical simulation of debris ...

AIM The aim of this in vitro study was to assess the amount of apically extruded debris and irrigant using Reciproc vs self-adjusting fle (SAF) and to investigate the effect, if any, of gravitational force via mandibular and maxillary positioning of the teeth. MATERIALS AND METHODS Forty human mandibular premolars were randomly assigned to four groups of 10 teeth each. The root canals were in...

Anthropogenic debris contaminates marine habitats globally, leading to several perceived ecological impacts. Here, we critically and systematically review the literature regarding impacts of debris from several scientific fields to understand the weight of evidence regarding the ecological impacts of marine debris. We quantified perceived and demonstrated impacts across several levels of biolog...

– 3 – We observed 34 comets using the 24 µm camera on the Spitzer Space Telescope. Each image contains the nucleus and covers at least 10 6 km of each comet's orbit. Debris trails due to mm-sized or larger particles were found along the orbits of 27 comets; 4 comets had small-particle dust tails and a viewing geometry that made debris trails impossible to distinguish; and only 3 had no debris t...