Results 21 to 30 of about 20,593 (224)

Late metastasis of renal cell carcinoma cloaked in a non-healing foot ulcer: A very rare presentation

open access: yesUrology Case Reports, 2021
A 67-year-old male who underwent right radical nephrectomy 15 years prior to current diagnosis for pT2bN0M0 ccRCC presented with an isolated purulent ulcer on left foot. Data was collected from records, radiological scans and histological reviews.
G. Harika, G. Bou Kheir
doaj   +1 more source

On bound states of Dirac particles in gravitational fields [PDF]

open access: yes, 2006
We investigate the quantum motion of a neutral Dirac particle bouncing on a mirror in curved spacetime. We consider different geometries: Rindler, Kasner-Taub and Schwarzschild, and show how to solve the Dirac equation by using geometrical methods.
Boulanger, Nicolas   +2 more
core   +2 more sources

The 100 most cited papers about medulloblastomas

open access: yesInterdisciplinary Neurosurgery, 2021
Background: A large number of published articlesexists, centered on pediatric and adult medulloblastomas. Objective: To accomplish a systematic review and meta-analysis concerningmedulloblastoma, focusing on the clinical features, diagnostic and ...
Dimitrios Panagopoulos   +3 more
doaj   +1 more source

La politique de la langue française en Fédération Wallonie-Bruxelles, une politique pour le citoyen [PDF]

open access: yesSynergies Pays Germanophones, 2018
L’article se centre sur l’action des pouvoirs publics en matière de langue française de 1970 à aujourd’hui et sur la sensibilisation à une politique construite à partir de l’action menée par ses deux organismes linguistiques : le Conseil de la Langue ...
Martine Garsou , Nathalie Marchal
doaj  

La restauration des tourbières en Wallonie : bilan du projet LIFE nature « plateau des Tailles »

open access: yesSciences, Eaux & Territoires, 2011
Le projet LIFE Nature « plateau des Tailles » est un ambitieux projet visant à restaurer plusieurs habitats naturels de grand intérêt biologique, dont les tourbières de Wallonie, un milieu rare et fragile abritant une grande biodiversité.
D. PARKINSON
doaj   +1 more source

Influence of the "second gap" on the transparency-conductivity compromise in transparent conducting oxides: an ab initio study

open access: yes, 2016
Transparent conducting oxides (TCOs) are essential to many technologies. These materials are doped (\emph{n}- or \emph{p}-type) oxides with a large enough band gap (ideally $>$3~eV) to ensure transparency.
Ha, Viet-Anh   +3 more
core   +1 more source

Advancing Machine Learning Optimization of Chiral Photonic Metasurface: Comparative Study of Neural Network and Genetic Algorithm Approaches

open access: yesAdvanced Physics Research, EarlyView.
Two methods for the optimization of chiral reflection by a metamaterial made of either GaP/Air or PMMA/Air interfaces are compared, showing approaches towards fast design exploration and high‐performance results: a neural‐network pipeline and a genetic algorithm. The structures considered are characterized by a periodic, chiral texturation with a shape
Davide Filippozzi   +4 more
wiley   +1 more source

Naomi Brigell, mezzo soprano and Michelle Beaton, piano, March 28, 2015 [PDF]

open access: yes, 2015
This is the concert program of the Naomi Brigell, mezzo soprano and Michelle Beaton, piano performance on Saturday, March 28, 2015 at 4:30 p.m., at the Concert Hall, 855 Commonwealth Avenue.
School of Music, Boston University
core  

Status and future of seed conservation of threatened plants in the post‐2020 era

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Ambitious targets have been set to backup seeds of threatened plants by the global strategy for plant conservation (GSPC), but it is unclear in how far these targets have been met and how seed collection should be organized to meet future challenges. Here, we provide an overview of the status of 44 countries in achieving seed conservation targets.
Andreas Ensslin   +130 more
wiley   +1 more source

La politique linguistique et culturelle des langues régionales en Belgique francophone de 1990 à 2018 [PDF]

open access: yesSynergies Pays Germanophones, 2018
En Belgique, le Service des langues régionales endogènes de la Fédération WallonieBruxelles est en charge de la promotion et de la protection des langues régionales sur son territoire depuis plus de 25 ans.
Alix Dassargues
doaj  

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