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Stefanie Vandevijvere; Simon Barquera; Gabriela Caceres; Camila Corvalan; Tilakavati Karupaiah; Maria Fernanda Kroker‐Lobos; Mary L'Abbé; See Hoe Ng; Sirinya Phulkerd; Manuel Ramirez‐Zea; Salome A. Rebello; Marcela Reyes; Gary Sacks; Carmen María Sánchez Nóchez; Karina Sanchez; David Sanders; Mark Spires; Rina Swart; Viroj Tangcharoensathien; Zoey Tay; Anna Taylor; Lizbeth Tolentino‐Mayo; Rob Van Dam; Lana Vanderlee; Fiona Watson; Clare Whitton; Boyd Swinburn
... The Healthy Food Environment Policy Index (Food‐EPI) aims to assess the extent of implementation of recommended food environment policies by governments compared with international best practices and prioritize actions to fill implementation gaps. The Food‐EPI was applied in 11 countries across six regions (2015‐2018). National public health nutrition panels (n = 11‐101 experts) rated the extent o ...
... Earlier we successfully isolated and characterised endometrial (eMSC) and adipose (aMSC) mesenchymal stem cells from the same donors. Mesenchymal stem cells share biological traits but display different surface marker phenotype and migration ability. Here we extended our research to their mRNA signature using next-generation sequencing. The RNA from cells (3 biological replicates from each cell ty ...
Fernando Torres-Pérez; R. Eduardo Palma; Dusan Boric-Bargetto; Cecilia Vial; Marcela Ferrés; Pablo A. Vial; Constanza Martínez-Valdebenito; Carlos Pavletic; Alonso Parra; Pablo A. Marquet; Gregory J. Mertz
Andes orthohantavirus; Oligoryzomys longicaudatus; animal viruses; antibodies; disease transmission; human population; immunoassays; probability; regression analysis; rodents; seroprevalence; small mammals; traps; zoonoses; Chile
Abstract:
... Small mammals present in areas where hantavirus cardiopulmonary syndrome (HCPS) cases had occurred in central and southern Chile were captured and analyzed to evaluate the abundance of rodents and seroprevalence rates of antibodies to Andes orthohantavirus (ANDV). Sampling areas ranged from the Coquimbo to Aysén regions (30–45° S approx.) regions. Ninety-two sites in peridomestic ...
Gloria Molina-Mercader; Andrés O. Angulo; Tania S. Olivares; Eugenio Sanfuentes; Miguel Castillo-Salazar; Eladio Rojas; Oscar Toro-Núñez; Hugo A. Benítez; Rodrigo Hasbún
... In 2003, a new gall-inducing wasp of the genus Ophelimus was detected in the Valparaíso Region (Chile), affecting tree plantations of Eucalyptus globulus Labill and Eucalyptus camaldulensis Dehnh. Since then Ophelimus has been frequently detected in different plantations in Chile, covering a widespread area. A preliminary collaborative study suggests that the micro-wasp detected should be classifi ...
... Abscisic acid (ABA) regulates the physiological and biochemical mechanisms required to tolerate drought stress, which is considered as an important abiotic stress. It has been postulated that ABA might be involved in regulation of plant phenolic compounds biosynthesis, especially anthocyanins that accumulate in plants subjected to drought stress; however, the evidence for this postulate remains el ...
... Limited knowledge exists about the sessile species found in wave exposed subtidal environments of southeastern Pacific shores, including the temporal patterns of colonization, growth, succession, and the potential problems they pose to human industries, including oceanic aquaculture and renewable wave energy. Filling this information gap is urgent considering the increased interest to exploit thes ...
Winfred Espejo; Janeide de A. Padilha; Rodrigo A. Gonçalves; Paulo R. Dorneles; Ricardo Barra; Douglas Oliveira; Olaf Malm; Gustavo Chiang; José E. Celis
anthropogenic activities; bioaccumulation; crabs; fish; isotopes; lead; limpets; marine ecosystems; normal values; shellfish; shrimp; water pollution; Antarctic region; Argentina; Chile
Abstract:
... Environmental concentrations of Pb have been increased due to anthropogenic activities, which have provoked the released of this element to the environment in large amounts. To understand how Pb behaves in remote southern marine ecosystems, we measured Pb concentrations and isotope ratios in biota from coastal marine ecosystems of the Chilean Patagonia and the Antarctic Peninsula area. Lead concen ...
Camelidae; ecological zones; farmers; highlands; littoral zone; llamas; lowlands; mass spectrometry; social behavior; trade; visual perception; Andes region; Chile
Abstract:
... Camelid caravans have played a key role in the complex systems of interregional social interaction that characterizes Andean history. In the northernmost region of Chile, the most frequent archaeological indicators of these caravan systems are trails and rock art images. Cruces de Molinos (LL-43), a rock art site in the Lluta valley, 1100 masl, 40 km from the Pacific littoral, expands the ceremoni ...
case studies; energy; greenhouse gas emissions; mining; operating costs; pipelines; topology; water shortages; water treatment; Chile
Abstract:
... This work presents a multi-objective optimization approach to designing integrated water supply systems for the mining industry. The main goal is to estimate the total operational costs and greenhouse gas emissions from water supply systems. Chilean mining industry has been selected as a case study because of acute problem of water scarcity that it experiences. The current strategy to face the pro ...
Engraulis ringens; additive effect; anchovies; fisheries; fisheries management; model validation; models; pelagic fish; seasonal variation; uncertainty; Chile; Peru
Abstract:
... A key factor in population models, the temporal scale, should both reflect intra-annual biological processes and avoid over-parameterization. We applied the separability assumption to model recruitment process error as additive effects of random annual deviates and quarterly fixed effects (QFEM) to improve our understanding of intra-annual recruitment patterns and, at the same time, minimize the i ...
climatic factors; climatic zones; energy efficiency; health services; interviews; Chile
Abstract:
... Primary care centers are establishments with elevated social relevance and high operational energy consumption. In Chile, there more than 628 family healthcare centers (CESFAM) have been built in the last two decades and with plans for hundreds more in the next few years. We revised the architecture, construction management and energy performance of five CESFAM centers to determine possible instan ...
analysis of variance; case studies; cholesterol; hot dogs; nutrients; prices; processed meat; sodium; willingness to pay; Chile
Abstract:
... The aim of the present work was to assess consumers' willingness to pay for reformulated frankfurters in the context of the implementation of nutritional warnings. Images of frankfurter packages were designed using a fractional factorial design with 5 2-level variables: brand type, sodium reduction, saturated fat reduction, fibre claim and cholesterol claim. An online study with 548 consumers was ...
assets; case studies; cost effectiveness; decision making; ecosystems; fire spread; forests; global positioning systems; models; moderate resolution imaging spectroradiometer; monitoring; remote sensing; satellites; unmanned aerial vehicles; wildfires; Chile; Spain; United States
Abstract:
... Large wildfires can cover millions of hectares of forest every year worldwide, causing losses in ecosystems and assets. Fire simulation and modeling provides an analytical scheme to characterize and predict fire behavior and spread in several and complex environments. Spatial dynamics of large wildfires can be analyzed using satellite active fire data, a cost-effective way to acquire information s ...
Salmo salar; aquaculture; carbon; commercialization; data collection; discriminant analysis; farmed fish; fatty acids; fish fillets; markets; mass spectrometry; multivariate analysis; oxidation; principal component analysis; provenance; salmon; seafood consumption; seafoods; Canada; Chile; Norway
Abstract:
... The constant increase in seafood consumption worldwide has led to a parallel growth of the incidence of products obtained by aquaculture on the market, but also of the fraudulent commercialization of farmed products as wild-type ones. A careful characterization of the lipid component of seafood products based on chromatography-mass spectrometry techniques has been reported as a promising approach ...
Monte Carlo method; decision making; drinking water; experts; infrastructure; stakeholders; water supply; Chile
Abstract:
... In rural settings, the presence of water supply infrastructure does not guarantee that people will have access to dependable and high-quality drinking water. To evaluate deficiencies, an assessment of quality of service of rural drinking water supply systems (RDWSS) should be examined from a multi-criteria perspective, one that integrates economic, technical, administrative, and operational compon ...
ammonia; carbon; carbon footprint; electricity; energy; greenhouse gas emissions; greenhouse gases; nitrogen; oxidation; Australia; Chile; Japan; Saudi Arabia
Abstract:
... Ammonia has been proposed as a promising energy carrier and is expected to play a resilient and sustainable role in future energy scenarios. Energy systems critically impact biogeological carbon and nitrogen cycles. Thus, carbon and nitrogen footprints are two important indicators of sustainability for energy systems. In the present study, we explored the optimal supply pathway and identified impa ...
aminoglycosides; antibiotic residues; beta-lactams; chemical pollutants; family farms; farming systems; honey; lamb meat; lettuce; macrolides; maximum residue limits; milk; monitoring; peasantry; permethrin; pesticide residues; raspberries; strawberries; sulfonamides; tetracyclines; tomatoes; Chile
Abstract:
... The presence of antimicrobial and pesticide residues in products sourced from peasant family farms selected from eight regions of Chile was determined. A total of 204 samples were analyzed from family farm products, including honey, lettuce, tomato, strawberry, raspberry, lamb meat, and cow's milk. Pesticide residues were found in 43 of 107 samples tested for them, but only 4 samples had concentra ...
... Chile has an immense renewable energy potential but its integration into the energy system constitutes a major challenge. The country has a complex topography that is expressed by a divided national grid with almost isolated subsystems and wide differences in the availability of renewable energy resources. The present study aims at evaluating the potentials of combining solar power, wind power and ...
Y. Concha-Cisternas; F. Lanuza; H. Waddell; Anne Sillars; A. M. Leiva; C. Troncoso; M. A. Martinez; M. Villagrán; L. Mardones; M. Martorell; G. Nazar; N. Ulloa; A. M. Labraña; X. Diaz-Martinez; K. Sadarangani; C. Alvarez; R. Ramirez-Campillo; Alex Garrido-Mendez; Cristian Luarte; Frederick Ho; Stuart R. Gray; F. Petermann-Rocha; C. Celis-Morales;
adiposity; body mass index; cognition; cognitive disorders; cross-sectional studies; elderly; health surveys; obesity; risk factors; underweight; waist circumference; Chile
Abstract:
... Although both obesity and ageing are risk factors for cognitive impairment, there is no evidence in Chile on how obesity levels are associated with cognitive function. Therefore, the aim of the present study was to investigate the association between adiposity levels and cognitive impairment in older Chilean adults. This cross-sectional study includes 1384 participants, over 60 years of age, from ...
... This work presents the preliminary results of the first field calibration campaign performed in the Atacama Desert, Chile, between the 18 and 22 August 2014, called the Atacama Field Campaign (ATAFIC 2014). In situ measurements were performed in order to spectrally characterize the surface reflectance spectra between 0.3 and 2.5 µm, radiometric temperature (8.0–14.0 µm) and atmospheric measurement ...
... The chemical characteristics of mine tailings, organic amendments (doses), and plants are the critical factors that must be evaluated and monitored to ensure the sustainability of phytostabilization. The aim of this study was to evaluate the mobility of copper (Cu) in mine tailings (MT) of the Zone Central of Chile to which commercial humic substances were added, examining their effect on the upta ...
Francisca Di Pillo; Gustavo Anríquez; Pablo Alarcón; Pedro Jimenez-Bluhm; Pablo Galdames; Vanesa Nieto; Stacey Schultz-Cherry; Christopher Hamilton-West
... Backyard production systems (BPS) that involve poultry are a good way to improve food security and poverty alleviation. Few studies have been carried out to quantify the contribution of poultry production to these households and the constraints they might face if a priority animal disease enters these systems. This study aims to characterize the poultry-rearing BPS in central Chile and to identify ...
Bayesian theory; alluvium; base flow; basins; bedrock; climate change; data collection; groundwater; hydrograph; isotopes; mixing; rain; rivers; snow; statistical models; subsurface flow; subwatersheds; temporal variation; water management; wet season; Chile
Abstract:
... This study examines the question of how much information one can extract from a tracer-based hydrograph separation in a remote and minimally gaged alpine catchment in Chile. We combine PCA-based endmember mixing analysis to identify the sources of flow contribution to the Diguillín River with a hierarchical Bayesian mixing model to integrate spatial and temporal variability in endmember concentrat ...
Campephilus; adults; global positioning systems; habitats; home range; memory; models; remote sensing; telemetry; trees; woodpeckers; Chile
Abstract:
... CONTEXT: The switching pattern between behavioral modes provides a mechanistic basis for understanding how animals perceive and memorize the habitat quality in their home ranges. OBJECTIVES: We assessed if Magellanic woodpeckers (Campephilus magellanicus) move based on habitat quality at local (neighboring trees) and home range scales. METHODS: We used state-space models to examine the relationshi ...
... By definition, intertidal organisms are exposed to fluctuations between submersion and exposure to air due to the variation in the sea level caused, primarily, by tides and waves. Such submersion regimes have great consequences on the evolution, physiology, behavior, and ecology of intertidal marine organisms, but, paradoxically, our quantitative knowledge about submersion regimes is extremely lim ...
Ramona E. Irimia; Susana M. M. Lopes; Gastón Sotes; Lohengrin A. Cavieres; Özkan Eren; Christopher J. Lortie; Kristine French; José L. Hierro; Christoph Rosche; Ragan M. Callaway; Teresa M. V. D. Pinho e Melo; Daniel Montesinos
... Allelopathy, the release of chemicals by plants that inhibit the germination and growth of competing species, can be an important trait for invasive success. However, little is known about potential biogeographical differences in allelopathy due to divergent regional eco-evolutionary histories. To test this, we examined the allelochemical potential of the highly invasive species Centaurea solstiti ...
... Previous ethnobotanical surveys from the north Andean part of Chile, where different ethnic groups are co-existing, with the preeminence of Aymara and Atacama traditions, revealed an extensive domestic use of the local flora. In these communities, traditional medicinal uses are mainly related to the treatment of respiratory, gastro-intestinal and urinary disorders, pain and inflammation, which is ...
Chlorella vulgaris; Scenedesmus; biomass; biorefining; cell walls; chlorophyll; copper; fluorescence; heavy metals; industry; lipid content; microalgae; mine tailings; molybdenum; protein content; scanning electron microscopy; Chile
Abstract:
... The copper industry generates large quantities of mine tailings water. Thus, this study aims to select a microalgae species that is both tolerant and capable of the bioremoval of heavy metals from metal mine tailings water as well as the potential biorefinery of this microalgae biomass. Chlorella vulgaris and Scenedesmus spinosus were tested for tolerance to metal mine tailings water (MTW) in nort ...
... An overview is given for an ongoing maize breeding program that improves populations, inbreds, and hybrids in the Midwestern USA. Breeding and selection occurred under biodynamic conditions in Wisconsin, on an organic winter nursery in Puerto Rico, a biodynamic winter nursery in Hawaii, and a conventional winter nursery in Chile. Emphasis is on improving protein quality, carotenoid content, compet ...
Caligus rogercresseyi; Oncorhynchus mykiss; Piscirickettsia salmonis; Salmo salar; adults; bacteria; control methods; ectoparasites; farming systems; fish diseases; fish farms; mortality; regression analysis; Chile
Abstract:
... Caligidosis and Piscirickettsiosis are currently the most important sanitary challenges for the Chilean salmon industry. Caligidosis is caused by the ectoparasite, Caligus rogercresseyi and Piscirickettsiosis is caused by the intracellular bacterium, Piscirickettsia salmonis. Both diseases are highly prevalent and widely distributed in farming areas in Chile. The co-occurrence of the two diseases ...
birds; body condition; cats; descriptive statistics; gardens; households; insects; microchip technology; pet ownership; pets; regression analysis; surveys; wildlife; Chile
Abstract:
... The domestic cat (Felis catus) has become a worldwide threat to wildlife. The potential impact of owned cats on wildlife in Chile has not been documented at a large scale. The purpose of this study was to investigate the number and type of prey that owned cats bring back in Chile and its relation with responsible ownership practices. An online survey was distributed to 5216 households that include ...
... Phalacroma rotundatum is a rare cosmopolitan heterotrophic dinoflagellate. This species, included in the IOC-UNESCO Taxonomic Reference List of Harmful Microalgae, may be a diarrhetic shellfish poisoning (DSP) toxin vector, but little is known about its ecophysiology and behavior. A vertical net haul collected during the austral summer of 2018 in Reloncaví Sound (Chilean Patagonia) revealed ...
... Cemeteries can help conserve biodiversity in urban landscapes, but their capacity to support native species is likely to be influenced by variables at different spatial scales. There is growing evidence on how landscape and patch-level attributes influence biodiversity in urban parks. However, there is limited evidence about cemeteries. Park cemeteries are dominated by vegetation because they are ...
... Climate change has profound environmental and socio-economic implications. To analyze climate change in relation to crops, a wide variety of agro-climatic indices has been proposed by the scientific community. In this study, changes in a set of 12 agro-climatic indices related to temperature were investigated in Central Chile over a 56-year period (1961–2016). The indices were computed based on da ...
Andisols; Fragaria ananassa; anthocyanins; antioxidant activity; ascorbic acid; fertilizer application; flavonols; fruits; high performance liquid chromatography; organic fertilizers; phosphorus; polyphenols; strawberries; tandem mass spectrometry; Chile
Abstract:
... BACKGROUND: Strawberries are consumed worldwide. In Chile, strawberry production has been established in Andisols, were phosphorus is scarce. Traditional fertilization (TF) and organic fertilization (OF) have both been established there. This study examined their impact on the polyphenolic content of strawberries. RESULTS: Two anthocyanins were identified by high performance liquid chromatography ...
... Several species of the Botryosphaeriaceae family have been associated with branch canker, dieback, and stem end rot in avocado (Persea americana Mill.). In Chile, the incidence of diseases affecting the avocado tree increased from 2011 to 2016, which coincided with a severe drought that affected avocado production. Moreover, distant countries importing avocados from Chile also reported an increase ...
... English (Persian) walnut (Juglans regia) trees affected by root and crown rot were surveyed in five regions of central Chile between 2015 and 2017. In each region, nine orchards, ranging from 1 to 21 years old, were randomly selected and inspected for incidence and severity of tree decline associated with crown and root rot. Soil and symptomatic crown and root tissues were collected and cultured i ...
... Chemical characteristics and the sources of submicron particles (<1 μm in diameter) were investigated in Valle Alegre, the coastal area of Central Chile. The chemical composition of particles was studied by using a Soot particle Aerosol Mass Spectrometer and Multi-Angle Absorption Photometer. Submicron particles were dominated by organics (42% of mass) and sulfate (39% of mass) while the mass frac ...
Daniel Gaitán-Cremaschi; Laurens Klerkx; Jessica Duncan; Jacques H. Trienekens; Carlos Huenchuleo; Santiago Dogliotti; María E. Contesse; Walter A. H. Rossing
... Dominant food systems are configured from the productivist paradigm, which focuses on producing large amounts of inexpensive and standardized foods. Although these food systems continue being supported worldwide, they are no longer considered fit-for-purpose as they have been proven unsustainable in environmental and social terms. A large body of scientific literature argues that a transition from ...
Lepechinia; aerial parts; chemical composition; essential oils; gas chromatography; hydrodistillation; indigenous species; medicinal plants; sesquiterpenoids; Chile
Abstract:
... Lepechinia salviae (Lindl.) Epling is an endemic species from northern Chile, where it is important medicinal plant. Essential oil from the aerial parts of L. salviae was extracted using hydro-distillation and analyzed using Gas Chromatography linked to a MS detector and a FID detector. Total thirty-four components (99.3 %) were identified; oxygenated sesquiterpenes τ-cadinol (12.84 %), ledol (10. ...
United States Environmental Protection Agency; World Health Organization; arsenic; bottled water; chemical composition; containers; drinking water; groundwater; human health; humans; ingestion; lifestyle; markets; nitrates; pH; risk; risk assessment; water quality; Chile
Abstract:
... The Chilean bottled water market has experienced continuous growth since 2000, surpassing 500 million liters sold in 2015. Generally, consumers tend to associate the consumption of bottled water with a healthy lifestyle, but current Chilean law does not require the product to be labelled with the chemical composition, thus preventing consumers from making informed choices.Our study focuses on dete ...
decision making; health policy; immunization; public policy; vaccines; Chile
Abstract:
... A National Immunization Technical Advisory Group (NITAG) provides independent, evidence–based recommendations to the Ministry of Health for immunization programmes and policy formulation. In this article, we describe the structure, functioning and work processes of Chile’s NITAG (CAVEI) and assess its functionality, quality of work processes and outputs, and integration of the committee into the M ...
... Warning labels (WLs) are the newest paradigm of nutrient-based, front-of-package labels (FOP) that have been consistently shown to be more effective at informing consumer purchases than other FOP labels. Their effectiveness may be attributed to their design and the consistency in the information they communicate. The present study assessed designs effects of WLs in improving understanding and perc ...
... It is not currently known which individuals with chronic Chagas disease (ChD) will develop cardiopathy in a determined period and which will be maintained asymptomatic with normal routine laboratory tests all their lives. The parasite burden is a factor that could explain this different evolution. The objective of this study was to quantify T. cruzi burden by real-time PCR in blood (qPCR-B) and de ...
Cleridae; ancestry; carnivores; ecosystems; forest communities; geographical distribution; lectotypes; monophyly; natural history; new combination; new genus; new species; species diversity; Argentina; Brazil; Chile
Abstract:
... The genera CorinthiscusFairmaire and Germain, 1861, Morulaptoma Opitz, new genus, and Petorca Opitz, new genus, are redescribed/described, and revised. The species composition of these genera involves: Corinthiscus insignicornisFairmaire and Germain, 1861, Morulaptoma canuta Opitz, new species, Morulaptoma nigra (Chevrolat, 1876), new combination, and Petorca denticolla (Spinola, 1849), new combin ...
Araucaria araucana; climate; conifers; dioecy; females; growing season; growth rings; males; models; nutrient uptake; resource allocation; seed dispersal; sexual dimorphism; snowpack; soil nutrients; spring; summer; tree age; tree growth; trees; vegetative growth; water stress; winter; Andes region; Chile
Abstract:
... Trees’ growth responses to climate may depend on tree age and site conditions. In dioecious species, sex adds an extra level of complexity due to differential reproductive effort between the sexes and potentially sex-related dimorphic growth. Araucaria araucana is a long-lived dioecious conifer with outstanding morphological and functional adaptations considered an excellent model to explore inter ...
... With ongoing climate change, aquaculture faces environmental challenges similar to those of natural ecosystems. These include increasing stress for calcifying species, e.g. macroalgae and shellfish. In this context, ocean acidification (OA) has the potential to affect important socioeconomic activities, including shellfish aquaculture, due to changes in the seawater carbonate system. However, coas ...
anthropogenic stressors; biodiversity; collaborative management; ecosystem services; fisheries; fisheries management; global change; governance; issues and policy; leadership; marine ecosystems; social capital; traditional technology; uncertainty; Chile
Abstract:
... Marine ecosystem services are in global decline, which requires new transformational changes in governance to cope with multiple anthropogenic stressors. We perform a systematic literature review of the biodiversity and ecosystem services outcomes of a governance transformation toward comanagement through the allocation of territorial user rights to artisanal fisher associations (TURFs) in Chile. ...
Didymosphenia geminata; anthropogenic activities; basins; community structure; freshwater; geographical distribution; homogenization; multivariate analysis; rivers; spatial variation; species diversity; Chile
Abstract:
... BACKGROUND: Didymosphenia geminata (Lyngbye) M. Schmidt is a freshwater invasive benthic diatom native to oligotrophic systems of the Northern Hemisphere. Since 2010, freshwater systems of south-austral Chile, have experienced a progressive invasion of this species between 37° 18′ S and 54° 30′ S. This invaded area is characterized by biogeographic heterogeneity, anthropic pressure and lack of kno ...
... Breeding status directly affects the at-sea behaviour of seabirds, resulting in marked differences between breeding and non-breeding birds. In this study, we report for the first time the foraging and diving behaviour of coexisting incubating, courting and non-breeding King Penguins (Aptenodytes patagonicus) at a recently established colony in Tierra del Fuego, Chile, to determine differences in ( ...