Results 41 to 50 of about 2,499 (182)
Ebstein's anomaly in children: A single-center study in Angola
Revista Portuguesa de Cardiologia, 2015 Introduction and Objective: Ebstein's anomaly is a rare complex congenital heart defect of the tricuspid valve. We aimed to describe the frequency, clinical profile, and early and short-term post-operative results in patients under the age of 18 years ...
Valdano Manuel +6 more
doaj +1 more source
Finding Stars: Mapping the Geography of the World's Scientific Elites
Transactions of the Institute of British Geographers, Volume 51, Issue 2, June 2026.Short Abstract Scientific excellence is clustering ever more tightly in a few ‘superstar’ cities. Four—New York, Boston, London and the San Francisco Bay Area—now host 12% of the world's top scientists. In contrast, the Global South remains largely absent, with the notable exception of Beijing's dramatic rise.
Andrés Rodríguez‐Pose +2 more
wiley +1 more source
Revista Portuguesa de Cardiologia, 2014 Resumo: Introdução e objetivos: A incidência e prevalência da emergência hipertensiva têm sido pouco abordadas na literatura. No entanto, tem-se observado ao longo da última década um aumento da chegada aos centros de urgências de pacientes jovens com ...
Geovedy Martínez García +4 more
doaj +1 more source
Giant left myxoma with mitral valve obstruction
Clinical Case Reports, 2022 We present a case of a patient admitted with acute pulmonary edema. An echocardiogram showed a giant myxoma of the left atrium causing mitral valve obstruction. The patient underwent urgent cardiac surgery for tumor resection. There were no postoperative
Valdano Manuel +7 more
doaj +1 more source
Systematic Reviews in the Age of AI: Are We Sacrificing Rigor for Volume?
Cochrane Evidence Synthesis and Methods, Volume 4, Issue 3, May 2026.ABSTRACT Introduction Systematic reviews occupy a central position in evidence hierarchies, providing structured syntheses intended to inform clinical decision‐making and health policy. However, the rapid expansion of artificial intelligence (AI) tools in literature searching, screening, data extraction, and manuscript drafting is transforming how ...
Howard Lopes Ribeiro Junior +3 more
wiley +1 more source
The Pan African Medical Journal, 2014 INTRODUCTION: As the polio eradication effort enters the end game stage, surveillance for Acute Flaccid Paralysis in children becomes a pivotal tool. Thus given the gaps in AFP surveillance as identified in the cases of late notification, this study was ...
Arciolanda Macama +9 more
doaj +1 more source
Huge interparietal posterior fontanel meningohydroencephalocele
Autopsy and Case Reports, 2015 Congenital encephalocele is a neural tube defect characterized by a sac-like protrusion of the brain, meninges, and other intracranial structures through the skull, which is caused by an embryonic development abnormality.
Jorge Félix Companioni Rosildo +2 more
doaj +1 more source
American Journal of Hematology, Volume 101, Issue S1, Page 5-16, April 2026.What are the available data on incidence & prevalence prognosis risk factors of severity of sickle cell disease in sub‐Saharan Africa? ABSTRACT Sickle Cell Disease (SCD) is highly prevalent in sub‐Saharan Africa. Epidemiological data remain sparse, but regional screening and research initiatives are expanding.
Brigitte Ranque +2 more
wiley +1 more source
Purification of residual glycerol recovered from biodiesel production
South African Journal of Chemical Engineering, 2019 Transesterification is the most widely used reaction in the production of biodiesel. It involves the breaking of the triglyceride structure and the exchange of alkyl groups with the hydroxide groups of the alcohol to obtain the new ester (biodiesel).
Fernando D. Pitt +2 more
doaj +1 more source
Luanda Leaks – A Conceptual Approach
, 2020 The international Media in the last days is giving news about a possible appropriation of money belonging to Angola State in advantage of a misconduct of the PR of Angola, favouring a familiar. I believe necessary to make a framework of the conceptual definitions about the facts announced by the media in order to make an opinion about what it is ...
openaire +1 more source