introduction: the modis facility for the earth observing system is a key element that supports ambitious goals related to studying the earth as a system. one of the modis products is high quality land surface temperature data that product in terra and aqua platforms. knowledge of the lst provides information on the temporal and spatial variations of the surface equilibrium state and is of funda...

São discutidos nesse artigo alguns conceitos básicos relacionados ao clima espacial no ambiente próximo da Terra. Devido ao desenvolvimento tecnológico dos anos recentes, o clima espacial tornou-se um tema importante de pesquisa. Os avanços da área se devem principalmente à sua aplicabilidade nos sistemas tecnológicos tanto no espaço próximo quanto na superf́ıcie da Terra. Dentre os diversos tem...

Various factors affect spatial genetic structure in plant populations, including adult density and primary and secondary seed dispersal mechanisms. We evaluated pollen and seed dispersal distances and spatial genetic structure of Carapa guianensis Aublet. (Meliaceae) in occasionally inundated and terra firme forest environments that differed in tree densities and secondary seed dispersal agents...

Valley networks are some of the strongest lines of evidence for extensive fluvial activity on early (Noachian; >3.7 Ga) Mars. However, their purported absence on certain ancient terrains, such as Arabia Terra, is at variance with patterns of precipitation as predicted by “warm and wet” climate models. This disagreement has contributed to the development of an alternative “icy highlands” scenari...

In open quantum systems, entanglement can vanish faster than coherence. This phenomenon is usually called sudden death of entanglement. In [M. O. Terra Cunha, New J. Phys. 9, 237 (2007)] a geometrical explanation was offered and a classification of all possible scenarios was given. Some classes were exemplified, but it was still an open question whether there were examples for the other ones. T...

Traditional measurements of suspended sediment concentrations (SSC) through in-situ sampling in rivers are expensive and time-consuming to perform. Thus, these methods cannot provide continuous SSC records. Although remote sensing has been used for SSC estimation, little research has been undertaken on inland rivers, especially for highly turbid rivers like the Yangtze. Previous studies have pr...

ATMOSPHERIC SCIENCES, NORTH CAROLINA STATE UNIVERSITY, RALEIGH, NC 27695, USA, KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY, THUWAL 23955-6900, SAUDI ARABIA, SOUTHERN CALIFORNIA COASTAL WATER RESEARCH PROJECT, COSTA MESA, CA 92626, USA, 5 SCHOOL OF MARINE SCIENCES, UNIVERSITY OF MAINE, WALPOLE, ME 04573, USA AND CANADIAN CENTRE FOR DNA BARCODING, BIODIVERSITY INSTITUTE OF ONTARIO, UNIVERS...

We completed a shoreline survey of Phragmites occurrence and adjacent land use along more than 8,400 km of shoreline in the Maryland and Virginia portions of the Chesapeake Bay and its tidal tributaries. Phragmites occurred along 14.6% of Maryland estuarine shoreline in the mid-to-upper portion of Chesapeake Bay, but along only 2.0% of the surveyed Virginia shoreline in the mid-to-lower portion...

Ziel des Beitrags ist es, den Einsatz von IKT in der Nachhaltigkeitsberichterstattung von Hochschulen in Deutschland als Element der Digitalisierung zu untersuchen. Dazu zählen z.B. Einzelanalysen zu Distributionskanälen und zur medialen Verfügbarkeit der Nachhaltigkeitsberichte, zu den Formen der IKT-gestützten Online-Kommunikation, die die Vermittlung der Inhalte erleichtern können, der Einsa...