Results 81 to 90 of about 33,425 (198)

A New X-Ray Analysis of the Open Cluster Blanco 1 Using Wide-Field BVIc Photometric and Proper Motion Surveys

open access: yes, 2009
We perform a new analysis of the extant ROSAT and XMM-Newton X-ray surveys of the southern open cluster Blanco 1, utilizing new BVIc photometric and proper motion data sets.
Appenzeller   +32 more
core   +1 more source

Influence of catchment lithology on debris‐flow fan morphology, sedimentology and evolution—Field evidence from the White Mountains, southern California, USA

open access: yesEarth Surface Processes and Landforms, Volume 50, Issue 13, October 2025.
Morphology of the (a) Sacramento Canyon fan (with a catchment dominated by batholitic bedrock) and (b) Gunter Creek fan (with a catchment dominated by sedimentary bedrock) at the foot of the White Mountains, California, highlighting the differences between fans fed by contrasting lithologies.
Tjalling de Haas   +3 more
wiley   +1 more source

Challenges in Detecting High‐Arctic Shrub Expansion From Optical Remote Sensing: Implications for Albedo and Climate Forcing

open access: yesJournal of Geophysical Research: Biogeosciences, Volume 130, Issue 10, October 2025.
Abstract Climate change‐induced shrub expansion in the Arctic feeds back on climate by reducing surface albedo. Vegetation dynamics are typically monitored by tracking the evolution of vegetation indices, such as normalized difference vegetation index (NDVI), derived from satellite imagery in processes known as greening or browning.
Florent Domine   +5 more
wiley   +1 more source

Evaluation du modèle numérique d'élévation d'un petit glacier de montagne généré à partir d'images stéréoscopiques Pléiades : cas du glacier d'Ossoue, Pyrénées françaises.

open access: yesRevue Française de Photogrammétrie et de Télédétection, 2014
Les bilans de masse des glaciers de montagne constituent des indicateurs climatiques régionaux reconnus. Moyennant une hypothèse sur la densité de la surface glaciaire, on peut établir le bilan de masse d'un glacier par différence entre deux modèles ...
Renaud Marti   +4 more
doaj   +1 more source

On the universal outcome of star-formation: Is there a link between stars and brown-dwarfs?

open access: yes, 2003
(abridged) The recent evidence obtained by Briceno et al. that star-formation in Taurus-Auriga (TA) may be producing significantly fewer brown dwarfs (BDs) per star than the ONC is investigated by setting up a realistic model stellar plus BD population ...
Aarseth   +82 more
core   +1 more source

Rupture of the 1949 Khait Earthquake on a Cryptic Fault: Implications for Earthquake Hazard

open access: yesTectonics, Volume 44, Issue 10, October 2025.
Abstract The 1949 Mw 7.6 Khait earthquake, Tajikistan, was one of the most destructive of the Pamir—Tien Shan region, killing over 7,000 people by building collapse and landsliding. It occurred at the transition between the Pamir and Tien Shan mountain ranges, which converge along the narrow Vashkh river valley.
B. W. W. Johnson   +6 more
wiley   +1 more source

Fecal Microbiota Transplantation: Expanding Horizons for Clostridium difficile Infections and Beyond

open access: yesAntibiotics, 2015
Fecal Microbiota Transplantation (FMT) methodology has been progressively refined over the past several years. The procedure has an extensive track record of success curing Clostridium difficile infection (CDI) with remarkably few adverse effects.
Thomas J. Borody   +2 more
doaj   +1 more source

A multidisciplinary study on the location of Roman sites in the southern sub‐plateau of the Iberian Peninsula

open access: yesArchaeometry, Volume 67, Issue 5, Page 1373-1390, October 2025.
Abstract Architectural and engineering elements of the Roman civilization constitute an important cultural heritage. Nevertheless, not all ancient Roman cities and the roads connecting them have been found, mainly because classical geographical sources show a significant lack of precision.
Jesús M. Romera   +2 more
wiley   +1 more source

Practical Attacks Against Graph-based Clustering

open access: yes, 2017
Graph modeling allows numerous security problems to be tackled in a general way, however, little work has been done to understand their ability to withstand adversarial attacks.
Bayer Ulrich   +19 more
core   +1 more source

Semi‐Automated Detection of Right Whales (Eubalaena spp.) in Very High‐Resolution Satellite Imagery

open access: yesMarine Mammal Science, Volume 41, Issue 4, October 2025.
ABSTRACT Space‐based detection of whales is proliferating because it shows promise as a monitoring tool, yet tests of its application across taxa and environments are rare. The objective of this study was to develop an end‐to‐end, semi‐automated procedure for detecting two right whale species ( Eubalaena glacialis and E.
Kimberley T. A. Davies   +7 more
wiley   +1 more source

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