Produção Nacional
Revisado por pares
Maria Stela Branquinho, Carmen Beatriz Taipe Lagos, Roraima M. Rocha, Délsio Natal, JoséMaria S. Barata, Alan H. Cochrane, Elizabeth Nardin, Ruth S. Nussenzweig, Judith Kardos Kloetzel,
... on: Oxford Academic PubMed Google Scholar Carmen Beatriz Taipe Lagos, Carmen Beatriz Taipe Lagos 2Instituto Nacional de Salud, Lima, Peru Search ...
Tópico(s): Mosquito-borne diseases and control
1993 - Oxford University Press | Transactions of the Royal Society of Tropical Medicine and Hygiene
Rebecca Nelson, Ricardo Orrego, Oscar Ortiz, J. L. Tenorio, Christopher C. Mundt, Marjon Fredrix, Ngo Vinh Vien,
... in Developing CountriesPeter Kromann, Willmer G. Pérez, Arturo Taipe, Elmar Schulte-Geldermann, Buddhi Prakash Sharma, Jorge L. ... Late Blight in Ecuador and PeruPeter Kromann, Arturo Taipe, Willmer G. Perez, and Gregory A. Forbes8 January ...
Tópico(s): Plant Virus Research Studies
2001 - American Phytopathological Society | Plant Disease
... cool to China's offer of organ donations. Taipe Times (Taipe City, Taiwan).http://www.taipeitimes.com/News/front/ ...
Tópico(s): Ethics and Legal Issues in Pediatric Healthcare
2015 - Elsevier BV | The Lancet
Diego Coppola, Sébastien Valade, Pablo Masías, Marco Laiolo, Francesco Massimetti, Adele Campus, Rigoberto Aguilar Contreras, Rosa Anccasi, Fredy Erlingtton Apaza Choquehuayta, Beto Ccallata, Corrado Cigolini, Luis Cruz, Anthony Finizola, Katherine Gonzales, Orlando Macedo, Rafael Miranda, Mayra Ortega, Rosario Paxi, Edú Taipe, D. Valdivia,
Abstract We used a large set of satellite- (visible, infrared, and radar images from Planetscope, MODIS, VIIRS, Sentinel2, Landsat 8, and Sentinel 1) and ground-based data (optical images, SO 2 flux, shallow seismicity) to describe and characterize the activity of the Sabancaya volcano during the unrest and eruption phases that occurred between 2012 and 2020. The unrest phase (2012–2016) was characterized by increasing gas and thermal flux, sourced by a convective magma column rising along with the ...
Tópico(s): High-pressure geophysics and materials
2022 - Springer Science+Business Media | Bulletin of Volcanology
Nathaly Maldonado‐Taipe, Federico Barbier, Karl Schmid, Christian Jung, Nazgol Emrani,
Quinoa is a pseudocereal originating from the Andean regions. Despite quinoa’s long cultivation history, genetic analysis of this crop is still in its infancy. We aimed to localize quantitative trait loci (QTL) contributing to the phenotypic variation of agronomically important traits. We crossed the Chilean accession PI-614889 and the Peruvian accession CHEN-109, which depicted significant differences in days to flowering, days to maturity, plant height, panicle length, and thousand kernel weight ( ...
Tópico(s): Microbial Metabolites in Food Biotechnology
2022 - Frontiers Media | Frontiers in Plant Science
Dilan S. R. Patiranage, Edward Asare, Nathaly Maldonado‐Taipe, Elodie Rey, Nazgol Emrani, Mark Tester, Christian Jung,
Response to photoperiod is of major importance in crop production. It defines the adaptation of plants to local environments. Quinoa is a short-day plant which had been domesticated in the Andeans regions. We wanted to understand the adaptation to long-day conditions by studying orthologues of two major flowering time regulators of Arabidopsis, FLOWERING LOCUS T (FT) and CONSTANS (CO) in quinoa accessions with contrasting photoperiod response. By searching the quinoa reference genome sequence, we ...
Tópico(s): Microbial Metabolites in Food Biotechnology
2021 - Wiley | Plant Cell & Environment
Produção Nacional
Revisado por pares
Karina Oliveira Lima, Ailén Alemán, M.E. López‐Caballero, M.C. Gómez‐Guillén, P. Montero, Carlos Prentice, Andy Joel Taipe Huisa, José María Monserrat,
This study aimed to microencapsulate protein hydrolysates from stripped weakfish (Cynoscion guatucupa) industrial byproducts produced by Alcalase (HA) and Protamex (HP) by spray drying, using maltodextrin as wall material. The physicochemical characteristics, and in vitro antioxidant and Angiotensin-I converting enzyme-inhibitory activities were evaluated during storage. Both microencapsulated hydrolysates showed spherical shape (~3.6 µm particle diameter), low water activity (<0.155) during storage and ...
Tópico(s): Bee Products Chemical Analysis
2021 - Elsevier BV | Food Chemistry
Produção Nacional
Revisado por pares
David Choque-Quispe, Sandro Froehner, Carlos A. Ligarda-Samanez, Betsy S. Ramos-Pacheco, Henry Palomino-Rincón, Yudith Choque-Quispe, Aydeé M. Solano-Reynoso, Fredy Taipe-Pardo, Lourdes Magaly Zamalloa-Puma, Miriam Calla-Florez, Mirian E. Obregón-Yupanqui, Miluska M. Zamalloa-Puma, Antonieta Mojo-Quisani,
Edible films prepared from biological materials are being massively used. This study aimed to prepare edible films from native potato starch of the Allcca sipas variety (Solanum tuberosum subsp. Andigena), nopal mucilage (Opuntia ficus indica), and glycerol. Twelve edible films were prepared with starch, mucilage, and glycerin in different proportions by thermosynthesis. It was observed that mucilage and glycerol have a significant direct effect on film solubility and an inverse effect on aw, while ...
Tópico(s): Polysaccharides Composition and Applications
2021 - Multidisciplinary Digital Publishing Institute | Polymers
Willmer Pérez, Rolando Arias, Arturo Taipe, Oscar Ortiz, G. A. Forbes, Jorge Andrade-Piedra, Peter Kromann,
Many decision support systems (DSS) have been developed to manage potato late blight caused by Phytophthora infestans, but most of these require sophisticated equipment and are not realistic alternatives for small-scale farmers in low-income countries. This research evaluates a simple, hand-held decision support tool (HH-DST) consisting of a disk with three concentric circles, two of which represent factors that drive late blight epidemics and the third providing a spray recommendation. Three disks ...
Tópico(s): Plant Pathogens and Fungal Diseases
2020 - Elsevier BV | Crop Protection
Noélie Bontemps, Pascal Lacroix, Éric Larose, Jorge Jara, Edú Taipe,
Abstract In tectonically active mountain belts, landslides contribute significantly to erosion. Statistical analysis of regional inventories of earthquake-triggered-landslides after large earthquakes (Mw > 5.5) reveal a complex interaction between seismic shaking, landslide material, and rainfall. However, the contributions of each component have never been quantified due to a lack of in-situ data for active landslides. We exploited a 3-year geodetic and seismic dataset for a slow-moving landslide ...
Tópico(s): earthquake and tectonic studies
2020 - Nature Portfolio | Nature Communications
Produção Nacional
Revisado por pares
Juan A. Ramos-Guivar, Katterine Taipe, Miguel A. Schettino, Eloi Alves da Silva Filho, Marco A. Morales, E. C. Passamani, F. J. Litterst,
Novel magnetic zeolite type 5A nanocomposites were synthesized by the co-precipitation method and applied to lead removal from aqueous ambient. Maghemite nanoparticles were mixed with zeolite and, by controlling its content, transmission electron microscopy results gave sizes of 5 to 15 nm and selected area electron diffraction patterns confirmed the presence of zeolite. The nanocomposites have high specific surface area with values up to 194 m2/g. Magnetization measurements proved superparamagnetic ...
Tópico(s): Environmental remediation with nanomaterials
2020 - Multidisciplinary Digital Publishing Institute | Nanomaterials
Produção Nacional
Revisado por pares
Golfer Muedas‐Taipe, Ily Marilú Maza Mejía, Fátima Santillán, Carlos J. Velásquez, Yvan Jesús Olortiga Asencios,
Azo dyes in wastewater coming from textile industry are detrimental, toxic, and affect the human health; therefore efficient wastewater treatments are needed. To contribute to the solution to this problem, in this paper materials based on chitosan beads are studied. Magnetized chitosan beads (MC), MC coated with tetraethyl orthosilicate TEOS (TMC) and MC modified with TEOS and ethylenediamine (ETMC) were synthesized and tested as adsorbents for the removal of two azo dyes: Cibacron Brilliant Yellow ...
Tópico(s): Recycling and Waste Management Techniques
2020 - Elsevier BV | Materials Chemistry and Physics
Pascal Lacroix, Gael Araújo, James Hollingsworth, Edú Taipe,
In mountainous environments, slow‐moving landslides (velocities <100 m/year) are a major concern for local populations. Rainfall is often the dominant forcing, and often result in major changes in kinematics which can mask smaller signals related to internal forcings. We focus here on a major (>40 Mm 3 ) slow‐moving landslide in the desert of southern Peru and take advantage of this arid environment to study the internal processes affecting landslide kinematics. We first estimate the ground displacement ...
Tópico(s): Tree Root and Stability Studies
2019 - Wiley | Journal of Geophysical Research Earth Surface
Pascal Lacroix, Amaury Dehecq, Edú Taipe,
Tópico(s): Cryospheric studies and observations
2019 - Nature Portfolio | Nature Geoscience
Christine Joyce, Cosme Taipe, Brittany Sobin, Marissa Spadaro, Batsheva Gutwirth, Larissa Elgin, Gabrielle Silver, Bruce M. Greenwald, Chani Traube,
Abstract Purpose Critically ill patients are at risk for short and long term morbidity. Early mobilization (EM) of critically ill adults is safe and feasible, with improvement in outcomes. There are limited studies evaluating EM in pediatric critical care patients. Provider beliefs and concerns must be evaluated prior to EM implementation in the pediatric intensive care unit (PICU). Design and Methods A survey was distributed to PICU providers assessing beliefs and concerns with regards to EM of PICU patients. ...
Tópico(s): Respiratory Support and Mechanisms
2017 - Elsevier BV | Journal of Pediatric Nursing
Peter Kromann, Franklin Valverde, Soraya Patricia Alvarado Ochoa, Rodrigo Vélez, José Pisuña, Byron Potosí, Arturo Taipe, David Caballero, Amalia Cabezas, A. Devaux,
The aim of this study was to investigate the proof-of-concept that Andean potato (Solanum tuberosum L., Andigenum Group) can be agronomically biofortified with iron (Fe) and zinc (Zn) fertilizers. Greenhouse and field experiments were conducted in the Ecuadorian Andes with varying rates of foliar and soil applied Fe and Zn fertilizers to investigate the potential resulting increase in tuber Fe and tuber Zn concentrations. The study showed that simple fertilizer practices enhancing Zn supply to potato ...
Tópico(s): Heavy metals in environment
2016 - Springer Science+Business Media | Plant and Soil
Swann Zérathe, Pascal Lacroix, Denis Jongmans, Jersy Mariño, Edú Taipe, Marc Wathelet, Walter Pari, Lionel Fídel Smoll, Edmundo Norabuena, Bertrand Guillier, Lucile Tatard,
Abstract The large slow‐moving landslide of Maca is located in the upper Colca valley (southern Peru), a region characterized by a well pronounced rainy period, and intense and recurrent sustained seismicity. The landslide, developed in deep lacustrine deposits, has recently accelerated, threatening the Maca village. This work aims at understanding the rupture mechanism and the causes of the recent landslide reactivation/acceleration. We present a multidisciplinary characterization of the Maca landslide ...
Tópico(s): Fire effects on ecosystems
2016 - Wiley | Earth Surface Processes and Landforms
Diego Coppola, Orlando Macedo, Domingo Ramos, Anthony Finizola, Dario Delle Donne, José Del Carpio, Randall White, Wendy McCausland, Riky Gustavo Centeno Quico, Marco Antonio Rivera Porras, Fredy Erlingtton Apaza Choquehuayta, Beto Ccallata, Wilmer Chilo, Corrado Cigolini, Marco Laiolo, Ivonne Lazarte, Roger Machaca, Pablo Masías, Mayra Ortega, Nino Puma, Edú Taipe,
After 3 years of mild gases emissions, the Ubinas volcano entered in a new eruptive phase on September 2nd, 2013. The MIROVA system (a space-based volcanic hot-spot detection system), allowed us to detect in near real time the thermal emissions associated with the eruption and provided early evidence of magma extrusion within the deep summit crater. By combining IR data with plume height, sulfur emissions, hot spring temperatures and seismic activity, we interpret the thermal output detected over ...
Tópico(s): High-pressure geophysics and materials
2015 - Elsevier BV | Journal of Volcanology and Geothermal Research
Kenichi Tatsumi, Yosuke Yamashiki, Miguel Angel Canales Torres, Cayo Leonidas Ramos Taipe,
Crop classification of homogeneous landscapes and phenology is a common requirement to estimate land cover mapping, monitoring, and land use categories accurately. In recent missions, classification methods using medium or high spatial resolution data, which are multi-temporal with multiple frequencies, have become more attractive. A new mode of incorporating spatial and temporal dependence in a homogeneous region was tried using the Random Forest (RF) classifier for crop classification. A time-series ...
Tópico(s): Soil Geostatistics and Mapping
2015 - Elsevier BV | Computers and Electronics in Agriculture
Pascal Lacroix, Étienne Berthier, Edú Taipe,
Major earthquakes in mountainous areas often trigger rapid landslides. Some observations also suggest that earthquakes can damage landslide prone areas or cause slow-moving landslides to accelerate, with a risk of evolution to rapid landslides in the following months after the earthquake. Here, we use optical images from the Pléiades satellites to detect slow-moving landslides and quantify the effect of earthquakes on the landslide motion. We process multi-temporal Pléiades images acquired in March, ...
Tópico(s): Fire effects on ecosystems
2015 - Elsevier BV | Remote Sensing of Environment
Stéphane Baize, Laurence Audin, Thierry Winter, Alexandra Alvarado, Luis Pilatasig Moreno, Mercedes Taipe, Pedro Reyes, Paul Kauffmann, Hugo Yépes,
The Pallatanga fault (PF) is a prominent NNE-SSW strike–slip fault crossing Central Ecuador. This structure is suspected to have hosted large earthquakes, including the 1797 Riobamba event which caused severe destructions to buildings and a heavy death toll (more than 12,000 people), as well as widespread secondary effects like landsliding, liquefaction and surface cracking. The scope of this study is to evaluate the seismic history of the fault through a paleoseismological approach. This work also ...
Tópico(s): Geological and Geochemical Analysis
2014 - Elsevier BV | Geomorphology
Pascal Lacroix, H. Perfettini, Edú Taipe, Bertrand Guillier,
Abstract We document the first time series of a landslide reactivation by an earthquake using continuous GPS measurements over the Maca landslide (Peru). Our survey shows a coseismic response of the landslide of about 2 cm, followed by a relaxation period of 5 weeks during which postseismic slip is 3 times greater than the coseismic displacement itself. Our results confirm the coseismic activation of landslides and provide the first observation of a postseismic displacement. These observations are ...
Tópico(s): Earthquake Detection and Analysis
2014 - American Geophysical Union | Geophysical Research Letters
Produção Nacional
Revisado por pares
Kita Macário, P.R.S. Gomes, R. M. Anjos, Carla Carvalho, R. Linares, Eduardo Queiroz Alves, Fabiana Oliveira, Maikel Diaz, Ingrid Chanca, M F M Silveira, Luiz Carlos Ruiz Pessenda, L M B Moraes, Taipe Campos, Alex Cherkinsky,
After 22 yr of the low-level liquid scintillation counting 14 C laboratory at the Center for Nuclear Energy in Agriculture (CENA) at São Paulo University (USP), Piracicaba, Brazil, and several collaborative projects with Brazilian and international researchers from distinct scientific areas, the first 14 C accelerator mass spectrometry (AMS) laboratory in Latin America was installed at the Physics Institute of the Universidade Federal Fluminense (UFF), Niterói, Brazil. A 250kV single stage accelerator ...
Tópico(s): Radioactivity and Radon Measurements
2013 - Cambridge University Press | Radiocarbon
Peter Kromann, Willmer G. Pérez, Arturo Taipe, Elmar Schulte‐Geldermann, Buddhi Prakash Sharma, Jorge Andrade-Piedra, G. A. Forbes,
Twenty phosphonate products found in the agrochemical market in Ecuador and Peru were evaluated in bioassays for the control of foliar potato late blight, caused by Phytophthora infestans. Eight phosphonate products were evaluated in 16 field experiments done in Peru, Ecuador, Kenya, and Nepal. A meta-analysis across locations involving 71 combinations of potato genotype by site and year demonstrated a significant relationship between phosphonate application rate and efficacy for controlling late ...
Tópico(s): Plant Disease Resistance and Genetics
2012 - American Phytopathological Society | Plant Disease
Juan Argüelles, Anne Lorrain, Yves Cherel, Michelle Graco, Ricardo Tafur, Ana Alegre, Pepe Espinoza, Anatolio Taipe, Patricia Ayón, Arnaud Bertrand,
Tópico(s): Marine Biology and Ecology Research
2012 - Springer Science+Business Media | Marine Biology
Paola Traversa, Olivier Lengliné, Orlando Macedo, J. P. Métaxian, Jean‐Robert Grasso, Adolfo Inza, Edú Taipe,
[1] Most seismic eruption forerunners are described using Volcano-Tectonic earthquakes, seismic energy release, deformation rates or seismic noise analyses. Using the seismic data recorded at Ubinas volcano (Perú) between 2006 and 2008, we explore the time evolution of the Long Period (LP) seismicity rate prior to 143 explosions. We resolve an average acceleration of the LP rate above the background level during the 2–3 hours preceding the explosion onset. Such an average pattern, which emerges when ...
Tópico(s): Earthquake Detection and Analysis
2011 - American Geophysical Union | Journal of Geophysical Research Atmospheres
Peter Kromann, Willy Pradel, Donald C. Cole, Arturo Taipe, G. A. Forbes,
Currently there is no effective mechanism for measuring the potential benefits of integrated pest and disease interven-tions in terms of reducing pesticide risks in potato production in developing countries. The environmental impact quotient (EIQ), a composite hazard indicator, was applied to data from potato field trials implemented in Ecuador to evaluate the practical boundaries of this metric related to potato production practices in the Andes. The EIQ was also applied to data from two independent ...
Tópico(s): Pesticide and Herbicide Environmental Studies
2011 - Scientific Research Publishing | Journal of Environmental Protection
Peter Kromann, Arturo Taipe, Willmer G. Pérez, G. A. Forbes,
Accumulated rainfall thresholds were studied in seven field experiments conducted in Ecuador and Peru for their value in timing applications of fungicide to control potato late blight, caused by Phytophthora infestans. Fungicide regimes based on accumulated rainfall thresholds ranging from 10 to 70 mm were compared with calendar spray schemes of every 5 or 7 days. Very low thresholds of 10 to 20 mm gave similar levels of control and resulted in similar number of sprays as did calendar spraying. ...
Tópico(s): Potato Plant Research
2009 - American Phytopathological Society | Plant Disease
Peter Kromann, Arturo Taipe, Jorge Andrade-Piedra, Lisa Munk, G. A. Forbes,
Experiments were conducted to determine whether preemergence infection of potato sprouts by Phytophthora infestans occurs in the highland tropics of Ecuador. In three separate experiments in the field, P. infestans was identified on the preemerged sprouts of 49, 5, and 43% of tubers, respectively, which had been removed from soil prior to emergence. Tubers had been planted within 10 m of approximately 300-m2 plots with mature potato plants severely infected with late blight. Infection potential ...
Tópico(s): Potato Plant Research
2008 - American Phytopathological Society | Plant Disease
Juan Argüelles, Ricardo Tafur, Anatolio Taipe, Piero Villegas, Friedeman Keyl, Noel Domínguez, Martín R. Salazar,
Changes in population structure of the jumbo flying squid Dosidicus gigas in Peruvian waters were studied based on size-at-maturity from 1989 to 2004. From 1989 to 1999, mature squid belonging to the medium-sized group prevailed, but from 2001 on, mature squids were larger. This change is not related to the changes in sea surface temperature and we hypothesized that it was caused by the population increase of mesopelagic fishes as prey.
Tópico(s): Coral and Marine Ecosystems Studies
2008 - Elsevier BV | Progress In Oceanography