Results 91 to 100 of about 1,117,135 (403)
Histological evaluation of the root apices of failed endodontic cases
Saudi Endodontic Journal, 2015 Aim: The aim of this histological study was to evaluate the different causes of the failures of the endodontic treatment. Materials and Methods: Adult patients who were referred for endodontic surgery and for whom root-end resection was considered ...
Camilla Nicole Pecora +6 more
doaj +1 more source
Space Debris -- Optical Measurements [PDF]
, 2020 Space debris is a major threat to the satellite infrastructure. A collision with even small particle, e.g. 1 cm of size, can cause a catastrophic event when the parent body, spacecraft or upper stage, will break up into hundreds of trackable fragments.
arxiv +1 more source
Field evidence for transfer of plastic debris along a terrestrial food chain
Scientific Reports, 2017 Although plastic pollution happens globally, the micro- (
E. Huerta Lwanga +11 more
semanticscholar +1 more source
Atmospheric circulation patterns, cloud-to-ground lightning, and locally intense convective rainfall associated with debris flow initiation in the Dolomite Alps of northeastern Italy [PDF]
, 2015 The Dolomite Alps of northeastern Italy experience debris flows with great frequency during the summer months. An ample supply of unconsolidated material on steep slopes and a summer season climate regime characterized by recurrent thunderstorms combine ...
Berti, Metteo +6 more
core +2 more sources
Molecular Oncology, EarlyView.Large multidimensional digital images of cancer tissue are becoming prolific, but many challenges exist to automatically extract relevant information from them using computational tools. We describe publicly available resources that have been developed jointly by expert and non‐expert computational biologists working together during a virtual hackathon
Sandhya Prabhakaran +16 more
wiley +1 more source
The deep sea is a major sink for microplastic debris
Royal Society Open Science, 2014 Marine debris, mostly consisting of plastic, is a global problem, negatively impacting wildlife, tourism and shipping. However, despite the durability of plastic, and the exponential increase in its production, monitoring data show limited evidence of ...
L. Woodall +9 more
semanticscholar +1 more source
A survey of debris trails from short-period comets
, 2007 We observed 34 comets using the 24 micron 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;
Kelley, Michael S. +2 more
core +1 more source
Delineation of risk area in Log pod Mangartom due to debris flows from the Stoze landslide [PDF]
, 2007 The paper shows in detail the case of delineation of risk area in the village of Log pod Mangartom in the Koritnica River valley due to possible debris flows that might in future be triggered on the Stoze slope above the Mangart Mountain pasture.
Fazarinc, Rok +2 more
core +2 more sources
Molecular Oncology, EarlyView.NAD+ regeneration by mitochondrial complex I NADH dehydrogenase is important for cancer cell proliferation. Specifically, NAD+ is necessary for the activities of NAD+‐dependent deacetylases SIRT3 and SIRT7, which suppress the expression of p21Cip1 cyclin‐dependent kinase inhibitor, an antiproliferative molecule, at the translational and transcriptional
Masato Higurashi +5 more
wiley +1 more source
Bayesian Adaptive Extended Kalman-Based Orbit Determination for Optical Observation Satellites
SensorsAs the number of satellites and amount of space debris in Low-Earth orbit (LEO) increase, high-precision orbit determination is crucial for ensuring the safe operation of spacecraft and maintaining space situational awareness.
Yang Guo +6 more
doaj +1 more source