Results 21 to 30 of about 109,317 (301)
Estudios Geologicos, 1988 En el presente trabajo se analiza el contenido de las distintas tipologías de cuarzo, definidas por Basu et al. (1975) para análisis de procedencia, en depósitos arenosos actuales, generados a partir de macizos del Sistema Central con distintas ...
A. Tortosa, M. Palomares, J. Arribas
doaj +1 more source
The importance of local settings: within-year variability in seawater temperature at South Bay, Western Antarctic Peninsula [PDF]
PeerJ, 2018 The Western Antarctic Peninsula (WAP) has undergone significant changes in air and seawater temperatures during the last 50 years. Although highly stenotherm Antarctic organisms are expected to be severely affected by the increase of seawater temperature,
César A. Cárdenas +2 more
doaj +2 more sources
Frontiers in Public Health, 2023 The ongoing COVID-19 pandemic is arguably one of the most challenging health crises in modern times. The development of effective strategies to control the spread of SARS-CoV-2 were major goals for governments and policy makers. Mathematical modeling and
Lindybeth Sarmiento Varón +9 more
doaj +1 more source
IMPORTANCE OF REMOTE SENSING FOR THE STUDY OF SPATIAL DYNAMICS OF ESTUARINE NEUSTON FROM SOUTHERN CHILE [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020 Zooplankton aggregation, hydrographic and remote sensing data were employed to relate the spatial dynamics of neustonic communities with chlorophyll a (Chl a) and suspended organic matter (SOM) at a spatial mesoscale (10 to 1000 km) in the southern ...
J. I. Cañete +4 more
doaj +1 more source
, 2020 El siguiente trabajo permite describir los procesos realizados en las áreas funcionales de recursos humanos, financiera y de mercadeo de la empresa Ríos & Arenas S.A.S.The following text job allows describing the processes carried out in the human ...
Gómez Cardona, Laura María +1 more
core +2 more sources
Molecules, 2004 After comparing our previous and newer results for numerous oxidativearomatic iodination experiments using various brands of active MnO2 as the oxidants,we recommend the use of a Chemical Manganese Dioxide (Aldrich CMD; 90 %MnO2) as the oxidant of choice,
Lech Skulski +2 more
doaj +1 more source
Composición modal de las arenas de la Cuenca del Guadalquivir: evaluación de su procedencia
Estudios Geologicos, 1990 La sedimentación de la cuenca neógena del Guadalquivir entre las provincias de Córdoba y Sevilla está formada por una potente sucesión margosa en la que se intercalan varias unidades arenosas que, de base a techo, se denominan: Arenas Basales, Arenas de ...
M. Palomares
doaj +1 more source
Investigaciones Geográficas, 2013 In the main channel and floodplain of Portuguesa River were studied the mineralogical characteristics of sand and clay minerals respectively. The methodology consisted of X-ray diffraction (XRD) analysis, for both mineral fractions. The results indicated
Orlando José González Clemente +3 more
doaj +1 more source
A new record of kelp Lessonia spicata (Suhr) Santelices in the Sub-Antarctic Channels: implications for the conservation of the “huiro negro” in the Chilean coast [PDF]
PeerJ, 2019 The Katalalixar National Reserve (KNR) lies in an isolated marine protected area of Magellan Sub-Antarctic channels, which represent an important area for marine biodiversity and macroalgal conservation.
Sebastián Rosenfeld +8 more
doaj +2 more sources
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background PIK3CA‐related overgrowth spectrum (PROS) includes several rare overgrowth disorders resulting from somatic gain‐of‐function mutations in PIK3CA. Despite treatment advances, including the recent approval of alpelisib for PROS in the United States, literature detailing the patient experience with PROS is limited.
Vamsi Bollu +8 more
wiley +1 more source