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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 ...
Food and Agriculture Organization; consumer protection; food composition; food industry; foods; funding; human resources; international trade; nutrient databanks; nutrition; Argentina; Chile; Paraguay
Abstract:
... Food composition data play a key role in areas such as nutrition, agriculture, food industry, and trade. Therefore it is still essential to have recent and reliable data on the composition of the main foodstuffs that a country produces and consumes. In Argentina the objective is to form a national network of institutions to provide information and data to a national food composition database (NFCD ...
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 ...
United Nations; governance; issues and policy; politics; risk; sustainable development; trade; Caribbean; Chile; China; Latin America
Abstract:
... During the initial implementation of the 2030 Agenda for Sustainable Development (the 2030 Agenda), the Second Ministerial Meeting of the Forum of China and the Community of Latin American and Caribbean States (CELAC) was held in Santiago, Chile, in January 2018. During this forum, China officially invited 33 countries in Latin America and the Caribbean (LAC) to join the Belt and Road Initiative ( ...
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 ...
1-aminocyclopropane-1-carboxylate deaminase; Klebsiella; Serratia; auxins; biomass; ecosystems; indigenous species; plant growth-promoting rhizobacteria; rhizosphere bacteria; roots; salt stress; salt tolerance; seedlings; siderophores; sodium chloride; superoxide dismutase; wheat; Andes region; Chile
Abstract:
... 1-Aminocyclopropane-1-carboxylate deaminase (ACCD)-producing rhizobacteria are widely studied as plant growth-promoting rhizobacteria (PGPR) to alleviate a variety of stresses in plants. However, the presence of ACCD-producing rhizobacteria in plants that naturally occur in stressful ecosystems as well as the potential PGPR activity in agriculturally relevant plants has been poorly explored thus f ...
... 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 ...
... The neurotoxic complex saxitoxin, is a group of marine toxins that historically has significantly impacted human health and the ability to utilize marine resources. A steady increase in the distribution and intensity of Alexandrium catenella blooms in Chile, and around the world, has caused major ecological and socioeconomic impacts, putting this type of dinoflagellate, and its toxicity, in the sp ...
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 ...
... The Crop Environment Resource Synthesis (CERES) models have been developed and utilized for the last 30 years at the field scale to optimize current management, estimate crop yield potential, and study input-use efficiency. Despite a large number of simulated variables, little work has been devoted to modeling the effect of plant population density on the behavior of individual plants. Our objecti ...
basins; case studies; climate; climate change; ecosystem services; energy; farming systems; hydrologic models; lakes; landscaping; population growth; uncertainty; water allocation; watersheds; Chile
Abstract:
... Due to population growth and expansion in the agricultural and industrial sectors, the demand for water has increased. However, water availability in some regions has decreased due to climate change trends and variability, necessitating innovative strategies and adaptation in water allocation to avoid conflicts among users in a hydrological system. This paper presents a resilience analysis and a c ...
... Indoor environments provide important protective habitats for humans, who live or work in them most of the time. Many of these environments lack ventilation, which affects the composition of microbial communities, especially that of the fungal community. The aim of this study is to report the isolation of Aspergillus section Candidi from indoor environments of the School of Medicine at Universidad ...
alpine plants; alpine vegetation; climate; data collection; ecosystems; soil; topography; treeline; Andes region; Chile; Spain
Abstract:
... Vegetation above treeline constitutes one of the most vulnerable ecosystems to climate warming and other drivers of Global Change. Given the panorama of such an uncertain future facing these plant communities, it is critical to know how they respond to environmental changes and improve the knowledge on the potential impacts of climate change on their distribution. Recently, with the impressive dev ...
... We report the presence of Alsodes verrucosus (Philippi, 1902) in Cayutué, Los Lagos Region, Chile, extending this species’ geographic distribution 65 km south of the previously southernmost record. An updated distribution map is provided for A. verrucosus and previous records in the literature are discussed. ...
... Apple (Malus domestica Borkh) is a major fruit crop in Chile. Among apple diseases, moldy core (MC) in the fruit has a high prevalence (16 to 46%) in susceptible cultivars. Apparently healthy flowers and fruit were sampled at six growth stages, from the pink bud to the mature fruit, from the susceptible ‘Oregon Spur’ and from the resistant ‘Granny Smith’ apples during two growing seasons. At least ...
... Microorganisms harbored by Chilean autochthonous ticks have been scarcely studied and current knowledge is restricted to three species of hard ticks only. The current study aimed to assess the presence of Anaplasmataceae, Borrelia and Hepatozoon agents in ticks collected directly from the environment, on reptiles, birds and mammals in twelve localities from northern, central and southern regions o ...
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 ...
... Antarctophthirus microchir is a sucking louse species belonging to the family Echinophthiriidae and has been reported to parasitize all species of the subfamily Otariinae, the sea lions. Former studies on this ectoparasite mainly required fixation, immobilization, or death of host species and especially examinations of adult male sea lions are still very rare. Between March and May 2018, adult ind ...
... Point sources such as wastewater treatment plants, terrestrial agriculture, and aquaculture may release antibiotic residues, antibiotic resistant bacteria, and antibiotic resistance genes (ARGs) into aquatic ecosystems. However, there is a lack of quantitative studies attributing environmental ARG abundance to specific sources. The goal of this study was to evaluate the role of freshwater trout fa ...
Terry Nolan; Maria Elena Santolaya; Ferdinandus de Looze; Helen Marshall; Peter Richmond; Sam Henein; Paul Rheault; Ken Heaton; Kirsten P. Perrett; Hartley Garfield; Anil Gupta; Murdo Ferguson; Diego D'Agostino; Daniela Toneatto; Miguel O'Ryan
... Data on duration of protection against invasive meningococcal disease post-vaccination with the recombinant, 4-component, meningococcal serogroup B vaccine (4CMenB) are limited. We evaluated bactericidal activity persistence in adolescents/young adults up to 7.5 years post-primary vaccination with 4CMenB, and response to a booster dose compared with vaccine-naïve controls.This open-label, multicen ...
advertising; beverages; energy; food labeling; industry; longitudinal studies; nutrient content; nutrients; nutrients of public health concern; saturated fats; sodium; sugars; supermarkets; Chile
Abstract:
... This study evaluated the anticipated food and beverage product reformulation by industry before the Chilean Law of Food Labeling and Advertising (Law 20.606) was implemented in June 2016 requiring a front‐of‐package (FOP) warning label for products high in sodium, total sugars, saturated fats, and/or total energy. Fieldworkers photographed a purposive sample of packaged food and beverage products ...
... Increased pollution and degradation of water resources and their associated ecosystems has stimulated the development of tools and methodologies to characterize, estimate, predict, and reverse the environmental impact of anthropic effects on water bodies. The Secondary Water Quality Standards (NSCA) adopted in Chile have incorporated the use of bioindicators complementary to physicochemical analys ...
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 ...
... Argylia radiata (L.) D. Don (family Bignoniaceae) is a perennial plant, native to the north of Chile. It is considered as a potential candidate as an ornamental crop. Micropropagation was evaluated as part of the domestication process. A multiplication trial was performed using MS medium supplemented with three cytokinins, 6-benzylaminopurine (BAP), kinetin, and zeatin, at four different concentra ...
Loa; algae; anthropogenic activities; arsenic; beaches; coastal water; coasts; fish; fish consumption; gold; health effects assessments; iron; marine sediments; mining; neoplasms; phosphorus fertilizers; risk; Argentina; Chile; Colombia; North Sea
Abstract:
... High concentrations of total arsenic (As), even above the Brazilian legislative threshold for marine sediments of 70 mg kg⁻¹, were found in beach sands and near-shore surface sediments. Two mechanisms (anthropogenic activities and sedimentary processes in the coastal waters) are responsible for this contamination. The anthropogenic impact includes releases from metallurgical plants, phosphate fert ...
Cristian Duarte; Diego Quintanilla-Ahumada; Cristobal Anguita; Patricio H. Manríquez; Stephen Widdicombe; José Pulgar; Eduardo A. Silva-Rodríguez; Cristian Miranda; Karen Manríquez; Pedro A. Quijón
... Coastal habitats, in particular sandy beaches, are becoming increasingly exposed to artificial light pollution at night (ALAN). Yet, only a few studies have this far assessed the effects of ALAN on the species inhabiting these ecosystems. In this study we assessed the effects of ALAN on Tylos spinulosus, a prominent wrack-consumer isopod living in sandy beaches of north-central Chile. This species ...
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 ...
... Lagtimes and times of concentration are frequently determined parameters in hydrological design and greatly aid in understanding natural watershed dynamics. In unmonitored catchments, they are usually calculated using empirical or semiempirical equations developed in other studies, without critically considering where those equations were obtained and what basic assumptions they entailed. In this ...
Fagus; Nothofagus betuloides; climate; forests; growth rings; latitude; sea level; summer; surface water temperature; time series analysis; tree growth; trees; Argentina; Chile
Abstract:
... KEY MESSAGE: Tree growth of Nothofagus betuloides forests south of 50°S is affected by local temperature and precipitation together with large-scale high-latitude climate patterns, but also significant influences from the Tropical Pacific were found. The characterization of past climate dynamics in southern South America is difficult due to the shortness of instrumental data. However, abundant for ...
... BACKGROUND: For the first time, a model was applied at the global scale to investigate the effects of climate change on Dalbulus maidis. D. maidis is the main vector of three plant pathogens of maize crops and has been reported as one of the most important maize pests in Latin America. We modelled the effects of climate change on this pest using three Global Climate Models under two Representative ...
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 ...
... In this study, beverage wastewater (BW) and extended aeration sewage sludge were assessed as co-substrates with both mixed sludge and thermally hydrolyzed sludge as substrates in an anaerobic codigestion (AcoD) process. The methodology is an integrated methodology that comprises a batch test (BMP) and semicontinuous reactor along with microbial diversity analysis. The results showed that in batch ...
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 ...
body mass index; chronic diseases; cross-sectional studies; death; food intake; food recalls; health policy; healthy eating habits; nutritional adequacy; nutritional status; questionnaires; sodium; sugar sweetened beverages; trans fatty acids; urban population; whole grain foods; women; Chile
Abstract:
... Most worldwide causes of disease and death are strongly associated with dietary factors and the application of eating indexes has proved to be a useful tool to determine diet quality in populations. The aim of this study was to evaluate the diet quality in Chile through the application of the Alternate Healthy Eating Index 2010 (AHEI-2010). A representative sample (n = 879) of Chilean urban popula ...
... 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 ...
... Seawater desalination represents an alternative solution to face the challenge of water scarcity in Chile. However, the uncertainty toward potential environmental impacts of desalination plants represent a barrier to achieving water sustainability and socioeconomic development in Chile. This study aimed to assess the quality of environmental monitoring plans (EMP) and determine the aspects to be i ...
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 ...
Aphanizomenon; Aphanocapsa; Aphanothece; Bacillariophyta; Microcystis; Ochrophyta; autumn; climate change; community structure; euphotic zone; eutrophication; forests; lakes; land use; lentic systems; plankton; plantations; temperature; total nitrogen; total phosphorus; watersheds; winter; Chile
Abstract:
... An increase in the distribution and frequency of cyanobacterial blooms has been reported for many regions worldwide. Due to this fact, we studied the variables that influence the abundance of natural populations of planktonic cyanobacteria in temperate lakes of central and southern Chile. These lakes differed in trophic state and watershed use. Cyanobacteria dominated in meso- and eutrophic system ...
... Biotic interactions are central to the development of theory and concepts in community ecology; experimental evidence has shown their strong effects on patterns of population and community organization and dynamics over local spatial scales. The role of competition in determining range limits and preventing invasions at biogeographic scales is more controversial, partly because of the complexity o ...
... Research Highlights: The invasive species Pinus contorta, has become a new component of the vegetation in the Patagonian Steppe, invading the complex matrix of bare ground, tussock grasses and cushion plants. At a microsite scale, the type of native vegetation is one of the multiple factors determining the establishment of P. contorta and in some cases, increasing its survival, and as a result, th ...
... 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 ...
... Chilean boldo (Peumus boldus Molina) is a native plant of the central and southern regions of Chile. This plant belongs to the Monimiaceae family and it is widely consumed, majority as a tea, in Brazil and in several other countries of the world. This high consumption can be explained mainly by the broad spectrum of pharmacological effects associated to this herb: colagogue, antioxidant, anti-infl ...
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 ...
... Biosecurity regulations and standards govern international agricultural inter-firm transactions. Drawing mainly on new institutional economics, our study offers insights into the institutional factors, at both the macro and meso levels, that influence the choice of inter-firm contracts for Chilean apple exports. First and foremost, it examines the influence of the Sanitary and Phytosanitary (SPS) ...
... Markham's Storm-Petrel Oceanodroma markhami is one of the least known seabirds in the world. Between 2013 and 2017, we conducted an extensive ground based survey to locate nests, confirm nesting colonies and, whenever possible, characterize Markham's Storm-Petrel breeding phenology. The survey was conducted in the Atacama Desert, northern Chile, covering the area between Arica (18.240°S, 70.509°W) ...
... 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 ...
... BACKGROUND: There is limited knowledge about the breeding strategies of birds inhabiting in South American temperate forests. This is particularly true for open-cup forest passerines breeding at high latitudes (> 42°). To better understand the ecology of these species, in this study we described and compared the breeding strategies (i.e., nest dimensions, nest height from the ground, egg laying rh ...
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 ...
... Leaf area index (LAI) is one of the most important parameters in physiological and functional plant models to estimate tree canopy vigor and photosynthesis. However, LAI requires either destructive or indirect methods for accurate assessment, which can be time consuming, costly, and requires specialized instrumentation. Cover photography to estimate canopy architectural parameters has shown to be ...
... The compound hazard effects of multiple process cascades severely affect Chilean river systems and result in a large variety of disturbances on their ecosystems and alterations of their hydromorphologic regimes leading to extreme impacts on society, environment and infrastructure. The acute, neo-tectonically pre-determined susceptibility to seismic hazards, the widespread volcanic activity, the in ...
... 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 ...
Sphagnum; bogs; disease diagnosis; electron microscopy; freshwater; habitats; species diversity; streams; surface water; Argentina; Chile
Abstract:
... The species composition of centrohelid heliozoans from freshwater habitats of different types (sphagnum bog, temporary and permanent water bodies and streams) of Southern Chile has been studied. Fourteen species (Acanthocystis nichollsi, A. pectinata, A. penardi, Pseudoraphidiophrys discoidea, P. formosa, P. veliformis, Raphidiophrys ovalis, Choanocystis perpusilla, Pterocystisfoliaceatruncata, P. ...
... 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 ...
children; cross-sectional studies; descriptive statistics; economic recession; elderly; food security; hunger; low educational status; politics; poverty; public policy; regression analysis; social support; sustainable development; women; Chile; El Salvador; Honduras; Latin America; Uruguay
Abstract:
... Ending hunger and achieving food security is Goal 2 of the Sustainable Development Goals but will be difficult to achieve as many countries experience financial and political shocks. This study assesses changes in the status of food security in Latin America (LA) during the region’s recent economic recession (2014 to 2017). This cross-sectional study used Gallup World Poll data from 18 LA countrie ...
adolescence; adolescents; capital; childhood; factor analysis; health effects assessments; high density lipoprotein cholesterol; infancy; iron deficiency anemia; linear models; longitudinal studies; low density lipoprotein cholesterol; nutrient deficiencies; social capital; socioeconomic status; Chile
Abstract:
... The present longitudinal study assessed whether changes in socio-economic status (SES) from infancy to adolescence were associated with plasma lipoprotein concentrations in adolescence, of which low HDL-cholesterol (HDL-C) and high LDL-cholesterol (LDL-C), TAG and total cholesterol (TC) concentrations are associated with higher cardiovascular risk. SES, assessed using the modified Graffar Index, w ...
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 ...
... Vaccinium corymbosum L. (Ericaceae) is a highly valued fruit crop and the most common type of blueberry grown in Chile. Plant growth and yield crop production are affected by agricultural practices and different soil parameters including chemical and biological properties. We performed a field assay to assess the effect of the inoculation with a mixture of 10 microorganisms and the addition of hum ...
... 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 ...
... Groundwater storage and discharge are important processes that have not yet been sufficiently studied in some parts of Chile. Additionally, in watersheds without snow cover or glaciers, groundwater storage and release are the main sources of minimum flow generation; therefore, improvements are required to characterize this process. This study aimed to use recession flow analysis to link groundwate ...
... Jumbo squid (Dosidicus gigas) is one of the largest cephalopods, and represents an important economic fishery in several regions of the Pacific Ocean, from southern California in the United States to southern Chile. Large and considerable discards of this species, such as skin, have been reported to constitute an important source of potential by-products. In this paper, a shotgun proteomics approa ...
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. ...
... Currently there is a growing market for high quality solid wood products in Chile made from Eucalyptus nitens. Thermal modifications have been used to obtain such products out of fast growing species. The chemical and crystallinity changes in the modified wood were investigated using diffuse reflectance FTIR spectroscopy and crystalline analysis by X-ray diffraction to analyze the difference betwe ...
Aloysia; Artemisia copa; antibacterial properties; chemical composition; enzyme activity; essential oils; traditional medicine; xanthine oxidase; Chile
Abstract:
... Two aromatic species from the Atacama people traditional medicine, Aloysia deserticola (Phil.) Lu-Irving & O’Leary and Artemisia copa Phil. var. copa, from Antofagasta area (North of Chile) were investigated for their essential oils (EO) chemical composition, antioxidant and antimicrobial activity. EO of A deserticola collected in four different spots unexpectedly contained α-thujone as the major ...
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 ...
... Clubroot caused by Plasmodiophora brassicae is an important disease of cruciferous crops worldwide. In Latin America (from Mexico to Chile, including the Caribbean), most of the area in cruciferous crops is devoted to oilseed rape (Brassica napus; c. 230 600 ha) in Brazil, Chile, Paraguay, Uruguay and Argentina, while cruciferous vegetables such as cabbage, cauliflower, broccoli and Brussels sprou ...
... 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 ...
... The population of Rapa Nui (Easter Island) in pre-historic time is believed to have numbered in the thousands although typical perennial sources of drinking water (streams, springs) are nearly absent from the island. From the accounts of early European explorers, it is known that the people of Rapa Nui utilized brackish drinking water. Beyond this, almost nothing is known of the water resources in ...
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 ( ...
... Choosing an alternative species of mussel for the aquaculture industries, will be possible if it has equal or greater yield than the mussel cultivated. This study compares the growth of the chilean native mussel Mytilus chilensis with the non-native Mediterranean mussel Mytilus galloprovincialis and evaluate if environmental variables and cultivation depth affects mussels growth. Mussel were seede ...
business enterprises; carbon footprint; case studies; decision making; eco-efficiency; emissions; environmental impact; environmental performance; issues and policy; life cycle assessment; models; raspberries; stakeholders; Chile
Abstract:
... Nowadays, sustainability has become of increasing concern in policy and the decision making of stakeholders. Companies have been increasing their attention to their environmental performance. In order to measure sustainability performance, different approaches have been proposed. The joint application of Life Cycle Assessment (LCA) and Data Envelopment Analysis (DEA), called LCA+DEA, is used to as ...
... Chagas disease is a vector-borne disease caused by the parasite Trypanosoma cruzi, and transmitted by triatomine insects to several mammal species. In Chile, the wild triatomine species are the endemic Mepraia species, and the only domestic vector of Chagas disease is Triatoma infestans. The aim of this study was to determine the competence of M. gajardoi compared to T. infestans as a T. cruzi vec ...
... Fats and oils are the most common pollutants in wastewater, and are usually eliminated through physical processes in wastewater treatment plants, generating large amounts of fats and residual oils that are difficult to dispose of and handle. The degradation of fatty wastewater was studied in a real wastewater treatment plant and a laboratory scale treatment unit. The wastewater treatment plant, lo ...
case studies; drought; issues and policy; livelihood; markets; Alberta; Argentina; Chile
Abstract:
... Institutional analysis is used to assess macro (in)formal policy approaches while livelihoods analyses takes a micro bottom up approach to analyse how livelihoods can be improved. The two approaches are rarely linked and scarcely applied to the understudied problem of drought. Hence this paper addresses the question: How can the livelihoods approach be combined with institutional analysis and how ...
Kate Brintrup; Cecilia Amigo; José Fernández; Amparo Hernández; Felipe Pérez; Jorge Félez-Bernal; Andrea Butturini; Katia Saez-Carrillo; Mariela A. Yevenes; Ricardo Figueroa
... BACKGROUND: Although intermittent rivers account for over half of the global fluvial network and could increase in length and quantity in Mediterranean climates (in response to climate changes), there is little documentation of organic matter input to them. This study was made possible by the cooperation of the Concepción Chiguayante School community and the Explora project (Chile), with the suppo ...