Results 21 to 30 of about 1,402,177 (192)

Apuntes sobre "Esa vez del huaico" de Vargas Vicuña

open access: yesLexis, 1981
El artículo no presenta resumen.
Antonio Cornejo Polar
doaj   +2 more sources

Postures langagières chez Janis Otsiemi et Mongo Beti

open access: yesConvergences Francophones, 2022
Cet article examine la posture langagière dans le roman d’Afrique francophone à partir des polars de Janis Otsiemi et Mongo Beti. Il pose l’hypothèse que la posture langagière chez ces deux écrivains traduit une réalité sociale, complexifiée par la ...
Adama Togola
doaj   +1 more source

Solar Activity Studies using Microwave Imaging Observations [PDF]

open access: yes, 2016
We report on the status of solar cycle 24 based on polar prominence eruptions (PEs) and microwave brightness enhancement (MBE) information obtained by the Nobeyama radioheliograph.
Gopalswamy, Nat
core   +3 more sources

Time‐lapse cameras reveal latitude and season influence breeding phenology durations in penguins

open access: yesEcology and Evolution, 2018
Variation in the phenology of avian taxa has long been studied to understand how a species reacts to environmental changes over both space and time. Penguins (Sphenicidae) serve as an important example of how biotic and abiotic factors influence certain ...
Caitlin Black   +5 more
doaj   +1 more source

Evidence of temperature control on mesopelagic fish and zooplankton communities at high latitudes

open access: yesFrontiers in Marine Science, 2022
Across temperate and equatorial oceans, a diverse community of fish and zooplankton occupies the mesopelagic zone, where they are detectable as sound-scattering layers. At high latitudes, extreme day-night light cycles may limit the range of some species,
Julek Chawarski   +4 more
doaj   +1 more source

Aurora, What Causes the Northern Lights? [PDF]

open access: yes, 2002
This color brochure answers common questions about the aurora, including its cause and explanations of its colors, shapes, and location. It lists resources for further study.

core  

Outcomes and Surgical Management of Malignant Rhabdoid Tumor of the Kidney: A Report From the Pediatric Surgical Oncology Research Collaborative

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Purpose Malignant rhabdoid tumor of the kidney (MRTK) is a rare, aggressive tumor seen in young children. The optimal timing of resection for locally advanced tumors is not well‐defined. The purpose of this study is to evaluate modern oncologic outcomes and the impact of surgical timing. Methods A multicenter retrospective review was performed
Hannah N. Rinehardt   +76 more
wiley   +1 more source

Gaps Analysis and Requirements Specification for the Evolution of Copernicus System for Polar Regions Monitoring: Addressing the Challenges in the Horizon 2020–2030

open access: yesRemote Sensing, 2018
This work was developed as part of the European H2020 ONION (Operational Network of Individual Observation Nodes) project, aiming at identifying the technological opportunity areas to complement the Copernicus space infrastructure in the horizon 2020 ...
Estefany Lancheros   +6 more
doaj   +1 more source

Polar orbitopes

open access: yes, 2013
We study polar orbitopes, i.e. convex hulls of orbits of a polar representation of a compact Lie group. The face structure is studied by means of the gradient momentum map and it is shown that every face is exposed and is again a polar orbitope.
Biliotti, Leonardo   +2 more
core   +1 more source

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