A5044989245- Nuclear physics research studies
- Quantum Chromodynamics and Particle Interactions
- Quantum, superfluid, helium dynamics
- Advanced Chemical Physics Studies
- Atmospheric chemistry and aerosols
- Climate Change Policy and Economics
- Climate variability and models
- Climate Change and Health Impacts
- Atomic and Molecular Physics
- Coastal and Marine Dynamics
- Climate Change, Adaptation, Migration
- Flood Risk Assessment and Management
- Advanced NMR Techniques and Applications
- Astrophysics and Star Formation Studies
- Atmospheric Ozone and Climate
- Coastal and Marine Management
- Particle physics theoretical and experimental studies
- Space Science and Extraterrestrial Life
- Stellar, planetary, and galactic studies
- Atmospheric aerosols and clouds
- Nuclear Physics and Applications
- Climate Change and Geoengineering
- Atomic and Subatomic Physics Research
- Atmospheric and Environmental Gas Dynamics
- Air Quality and Health Impacts
University of Lisbon
2015-2024
Sustainability Institute
2024
Fundação Minerva - Cultura - Ensino e Investigação Científica
2023
National Statistical Institute of Portugal
2022
State University of Norte Fluminense
2022
Universidade Nova de Lisboa
2006-2021
University of Helsinki
2020
University of Beira Interior
2006-2016
Universidade de Taubaté
2015
Universidade de Vigo
2011-2012
We present a new compilation of Type Ia supernovae (SNe Ia), dataset low-redshift nearby-Hubble-flow SNe and analysis procedures to work with these heterogeneous compilations. This ``Union'' 414 SN Ia, which reduces 307 after selection cuts, includes the recent large samples from Supernova Legacy Survey ESSENCE Survey, older datasets, as well recently extended distant observed HST. A single, consistent blind procedure is used for all various subsamples, implemented that consistently weights...
Nucleation of aerosol particles from trace atmospheric vapours is thought to provide up half global cloud condensation nuclei. Aerosols can cause a net cooling climate by scattering sunlight and leading smaller but more numerous droplets, which makes clouds brighter extends their lifetimes. Atmospheric aerosols derived human activities are have compensated for large fraction the warming caused greenhouse gases. However, despite its importance climate, nucleation poorly understood. Recently,...
Atmospheric new-particle formation affects climate and is one of the least understood atmospheric aerosol processes. The complexity variability atmosphere has hindered elucidation fundamental mechanism from gaseous precursors. We show, in experiments performed with CLOUD (Cosmics Leaving Outdoor Droplets) chamber at CERN, that sulfuric acid oxidized organic vapors concentrations reproduce particle nucleation rates observed lower atmosphere. reveal a involving clusters containing molecules...
Significance The formation of nanoparticles by condensable vapors in the atmosphere influences radiative forcing and therefore climate. We explored detailed mechanism particle formation, particular role oxidized organic molecules that arise from oxidation monoterpenes, a class volatile compounds emitted plants. mimicked atmospheric conditions well-controlled laboratory setup found these organics form initial clusters directly with single sulfuric acid molecules. then grow further addition...
The genomes of four Lactobacillus reuteri strains isolated from human breast milk and the gastrointestinal tract have been recently sequenced as part Human Microbiome Project. Preliminary genome comparisons suggested that these belong to two different clades, previously shown differ with respect antimicrobial production, biofilm formation, immunomodulation. To explain possible mechanisms survival in host probiosis, we completed a detailed genomic comparison milk–derived isolates...
Abstract The growth of freshly formed aerosol particles can be the bottleneck in their survival to cloud condensation nuclei. It is therefore crucial understand how grow atmosphere. Insufficient experimental data has impeded a profound understanding nano-particle under atmospheric conditions. Here we study CLOUD (Cosmics Leaving OUtdoors Droplets) chamber, starting from formation molecular clusters. We present measured rates at sub-3 nm sizes with different atmospherically relevant...
Young massive clusters (YMCs) with stellar masses of 104–105 M☉ and core densities stars per cubic pc are thought to be the "missing link" between open extreme extragalactic super star globular clusters. As such, studying initial conditions YMCs offers an opportunity test cluster formation models across full mass range. G0.253 + 0.016 is excellent candidate YMC progenitor. We make use existing multi-wavelength data including recently available far-IR continuum (Herschel/Herschel Infrared...
Abstract. The formation of particles from precursor vapors is an important source atmospheric aerosol. Research at the Cosmics Leaving OUtdoor Droplets (CLOUD) facility CERN tries to elucidate which are responsible for this new-particle formation, and how in detail it proceeds. Initial measurement campaigns CLOUD stainless-steel aerosol chamber focused on investigating particle ammonia (NH3) sulfuric acid (H2SO4). Experiments were conducted presence water, ozone sulfur dioxide. Contaminant...
Abstract In recent years, the production of pellets derived from forestry biomass to replace coal for electricity generation has been increasing, with over 10 million tonnes traded internationally—primarily between United States and Europe but an increasing trend Asia. Critical this trade is classification woody as ‘renewable energy’ thus eligible public subsidies. However, much scientific study on net effect suggests that it having opposite expected renewable energy, by atmospheric levels...
Long-term global emission scenarios enable the analysis of future climate change, impacts, and response strategies by providing insight into possible developments linking these different research elements. Such play a crucial role in change literature informing Intergovernmental Panel on Climate Change's (IPCC) Assessment Reports (ARs) support policymakers. This article reviews evolution scenarios, since 1990, focusing scenario critiques responses as published literature. We focus issues...
This article offers a review of research and policy on climate change in Portugal is organized into three main themes: scientific knowledge assessment change; analysis evaluation; public engagement. Modern meteorology climatology started the 1950s strong community researchers science, vulnerabilities, impacts, adaptation has since developed, particularly last decade. Nevertheless, there are still many gaps research, especially regarding economic costs benefits adaptation. Governmental...
The southwestern coastal regions of Bangladesh (SWCRB) are highly exposed to saltwater intrusions brought about through cyclones and storm surges. These salinity contributing soil water in the areas. This study aimed determine impact these on quality three vulnerable In this investigation, samples were collected analysed for pH, electrical conductivity (EC) other trace elements. analysis found many parameters be higher than recommended values. that there was a significant correlation between...
In this study we investigated the potential impact of climate change in Portugal on heat-related mortality, air pollution-related health effects, and selected vectorborne diseases. The assessment used scenarios from two regional models for a range future time periods. annual death rates Lisbon may increase between 5.4 6 per 100,000 1980-1998 to 8.5 12.1 by 2020s maximum 29.5 2050s, if no adaptations occur. projected warmer more variable weather result better dispersion nitrogen dioxide...
This article describes a climate change adaptation planning process triggered by group of researchers and stakeholders in context where no collective responses or long-term plans for protecting vulnerable coastal system had been initiated, despite local perceptions vulnerability risk. The case study shows the application two methods: scenario workshops pathways participatory action research methodological design. Participatory qualitative methods are highlighted as accelerators processes...
Abstract Long-term developments in carbon dioxide emissions have tracked the middle of projected emission scenario ranges over past three decades. If this tendency continues, it seems increasingly less likely that future will follow current high-emission scenarios. However, past, periods slow and fast global growth was observed, which led to previous critiques scenarios being too low or high. In light such unpredictability since are meant explore plausible futures, we here argue a broad...
Knowledge of how the activity enzymes is affected under in vivo conditions essential for analyzing their regulation and constructing models that yield an integrated understanding cell behavior. Current kinetic parameters Lactococcus lactis are scattered through different studies performed assay conditions. Furthermore, often diverge from prevailing intracellular environment. To establish uniform resemble conditions, we analyzed composition anaerobic glucose-limited chemostat cultures L....