Results 71 to 80 of about 771,472 (335)

A weak El Niño/Southern Oscillation with delayed seasonal growth around 4,300 years ago

open access: yesNature Geoscience, 2013
Palaeoclimate records indicate lower El Nino/Southern Oscillation (ENSO) variance during the middle Holocene compared with today, but the mechanisms leading to this muted variability are not clear. A 175-year oxygen isotope record from a Porites coral microatoll in the NINO3.4 region records persistently reduced ENSO variance about 4,300 years ago, and
H. V. McGregor   +6 more
openaire   +4 more sources

Bartonella henselae en niños con adenitis regional atendidos en un hospital nacional del Perú, 2012

open access: yesRevista Peruana de Medicina Experimental y Salud Pública
Con el objetivo de determinar la frecuencia de casos seropositivos a Bartonella henselae en niños con adenitis regional atendidos en un hospital nacional del Perú, se realizó un estudio trasversal en 106 niños con adenitis regional mayor de 1 cm de ...
Edwin Miranda-Choque   +7 more
doaj   +2 more sources

Factores predictivos de la microalbuminuria en pacientes pediátricos con diabetes mellitus tipo 1 (DMt1)

open access: yesAnales de la Facultad de Medicina, 2012
La nefropatía constituye la complicación más grave de la diabetes mellitus tipo 1 (DMt1) siendo una de las manifestaciones iniciales la microalbuminuria.
Paola Marianella Pinto Ibárcena   +7 more
doaj  

On the Interpretation of Climate Change in the Tropical Pacific [PDF]

open access: yes, 2000
Analysis of sea surface temperature (SST) observations of the last 150 years reveals strong changes in the tropical Pacific climate system during the most recent decades.
Latif, Mojib
core  

Policy and Land Degradation Are Neglected in the Desertification, Land Degradation, and Drought Research Landscape in South Africa: Evidence From a Systematic Review and Bibliometric Analysis

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT Globally, issues related to desertification, land degradation, and drought (DLDD) are increasing, with a multitude of negative socioeconomic and ecological impacts reported. In particular, Africa is recognized as one of the regions that are most vulnerable to these negative impacts.
Bopaki Phogole   +2 more
wiley   +1 more source

Variation in yellowfin tuna (Thunnus albacares) catches related to El Niño-Southern Oscillation events at the entrance to the Gulf of California [PDF]

open access: yes, 2006
Fishery catch data on yellowfin tuna (Thunnus albacares) were examined to study the effects of El Niño events between 1990 and 1999 for an area in the northeastern tropical Pacific (18−24°N, 112−104°W).
Muhlia-Melo, Arturo   +3 more
core  

Nutrient limitation dampens the response of a harmful algae to a marine heatwave in an upwelling system

open access: yesLimnology and Oceanography, EarlyView.
Abstract Harmful algal blooms caused by toxin‐producing species of the diatom genus Pseudo‐nitzschia have been linked to anomalously warm ocean conditions in the Northern California Current System. This study compares summertime concentrations of Pseudo‐nitzschia spp.
Alexis D. Fischer   +7 more
wiley   +1 more source

Reconstrucción mandibular con colgajo microquigúrgico de peroné en el Instituto Especializado de Salud del Niño, Lima, Perú

open access: yesActa Médica Peruana, 2009
Introducción: la reconstrucción mandibular enmarcada en la cirugía de cabeza y cuello, constituye un tema de constante innovación alimentado por el intenso debate e innovación científica que permiten el tratamiento de procesos morbido tumorales muchas ...
Juan Francisco Oré Acevedo   +4 more
doaj  

Efficacy of Stiripentol Beyond Dravet Syndrome: A Retrospective Medical Record Review of Patients with Drug-Resistant Epilepsies

open access: yesNeurology and Therapy
Introduction Stiripentol is approved as an add-on therapy with clobazam and/or valproate for seizures associated with Dravet syndrome (DS). Evidence of stiripentol efficacy in other drug-resistant epilepsies is limited.
Víctor Soto-Insuga   +7 more
doaj   +1 more source

Bloom compression alongside marine heatwaves contemporary with the Oregon upwelling season

open access: yesLimnology and Oceanography, EarlyView.
Abstract Marine heatwave (MHW) events have led to acute decreases in primary production and phytoplankton biomass in the surface ocean, particularly at the mid latitudes. In the Northeast Pacific, these anomalous events have occasionally encroached onto the Oregon shelf during the ecologically important summer upwelling season.
Ian T. Black   +2 more
wiley   +1 more source

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