ARTÍCULOS CIENTÍFICOS: Envíos recientes

Mostrando ítems 181-200 de 552

Brazilian Flora 2020: Leveraging the power of a collaborative scientific network

Gomes da Silva, Janaína; Nervo, Michelle Helena; Ranzato Filardi, Fabiana Luiza; Baumgratz, José Fernando; Taciana B., Cavalcanti; Marcus A.N., Coelho; Costa, Andrea F.; Bicudo, Carlos E.M.; Menezes, Mariângela; Carlos Wallace N., Moura; Lughadha, Eimear Nic; Freire Fierro, Alina (2021)

and fungal diversity of Brazil. Overall, a team of about 980 taxonomists joined efforts in a highly collaborative project that used cy-bertaxonomy to prepare an updated Flora of Brazil, showing the power of scientific ...
Report of the Special-purpose Committee on Virtual Participation in the Nomenclature Section

Landrum, Leslie; Fortunato, Renee; Barkworth, Mary; Demissew, Sebsebe; Dönmez, Ali; Freire Fierro, Alina; Dönmez, Ali; Dutta, Suchandra; Oh, Sang-Hun; Prado, Jefferson; Sennikov, Alexander; Parra O, Carlos; Rico Arce, Lourdes; Smith, Gideon F.; León, Blanca; Kim, Young Dong; Dutta, Suchandra (2021)

The Special-purpose Committee on Virtual Participation in the Nomenclature Section was established by the XIX International Botanical Congress (IBC) in Shenzhen, China in 2017, with the mandate "to investigate the possibility ...
An Analysis of EFL Textbooks in Public Secondary Schools of Ecuador

Espinosa Cevallos, Ligia F.; Soto, Sandy T. (2021)

This study analyzes three textbooks that were used to teach English to eighth graders in Ecuadorian public secondary schools from 1993 to midyear of 2019. The textbooks in question included Our World Through English (OWTE) ...
The synergistic effect of microplastic and malathion exposure on fiddler crab Minuca ecuadoriensis microplastic bioaccumulation and survival

Cabrera, Marcela; Vellosa Capparelli, Mariana; Massaine Moulatlet, Gabriel; Villegas, Lipsi (Scopus, 2022)

We assessed the combined effects of polyethylene microplastic (MP) and malathion (MLT) on the survival of the fiddler crab Minuca ecuadoriensis, and MP tissue bioaccumulation in four treatments following 120 h exposure: ...
Structural Design of the Base of an Internal Combustion Engine Using FEM

Cuenca Cabrera, Carlos; Gonzaga, Luis (2022)

This document aims to show a rational process to estimate the load generated by the vibratory torque of an Internal Combustion Engine (ICE). As consequence, being able to design the structure of the engine bed. In this ...
XPS characterization of Vanadium Carbide species formed during the atomization process in Electrothermal Atomic Absorption Spectroscopy

Ruiz, Frine; Brito Gonzalvez, Joaquin; Aguilera de Benzo, Zully; Salas, Janeth; Garaboto, Angel (2022)

Solid state surface phases formed on pyrolytic graphite platforms during the atomization of vanadium in ETAAS have been characterized by means of X-ray photoelectron spectroscopy. Vanadium carbide V 8 C 7 , usually described...
Experimental methods in chemical engineering: pH

Villasana, Yanet; Navas Cárdenas, Carlos; Scott Patience, Gregory (Scopus, 2022)

All chemical, biochemical, and biological processes depend on pH. Since the 1920s, when the first electrode was introduced to determine the concentration of hydrogen ions, pH measurement techniques have been evolving to ...
Combined sedimentation, electrocoagulation and ozone processes for the wastewater treatment in an Ecuadorian MDF industry

Navas Cárdenas, Carlos; Rajendran, S.; Ramírez, T.; Muñoz, F. (2022)

The combination of sedimentation, electrocoagulation (EC) and ozonation processes was investigated to treat wastewater from a medium-density fiberboard panel industry. The set-up of the EC process was composed of aluminum ...
Framing the future for taxonomic monography: Improving recognition, support, and access

Gorneau, Jacob A.; Demissew, Sebsebe; Donoso, David A.; Ghazanfar, Shahina; Freire Fierro, Alina; Kulkarni, Siddharth; Siniscalchi, Carolina; Zamani, Alireza; Lohmann, Lucia G; Tank, David C.; Siniscalchi, Carolina (2022)

Taxonomic monographs synthesize biodiversity knowledge and document biodiversity change through recent and geological time for a particular organismal group, sometimes also incorporating cultural and place based ...
Functional Feeding Groups of Macrofauna and Detritus Decomposition along a Gradient of Glacial Meltwater Influence in Tropical High-Andean Streams

Andino, Patricio; Espinosa, Rodrigo Eduardo; Crespo Pérez, Verónica; Cauvy Frauníe, Sophie; Olivier, Dangles; Jacobsen, Dean (Scopus, 2021)

Tropical Andean glaciers are retreating rapidly, with possible consequences for trophic structure and ecosystem processes in high Andean meltwater streams. Here, we measured the environmental characteristics, quantified ...
Edaphic heterogeneity and the evolutionary trajectory of Amazonian plant communities

Autor desconocido (2021)

We investigated how the phylogenetic structure of Amazonian plant communities varies along an edaphic gradient within the non-inundated forests. Forty localities were sampled on three terrain types representing two ...
(127-135) Proposals to add new Provisions and Recommendations to Division III of the International Code of Nomenclature for algae, fungi, and plants related to virtual participation in the Nomenclature Section.

Landrum, Leslie; Fortunato, Renee; Barkworth, Mary; Breitwieser, I.; Demissew, Sebsebe; Dönmez, Ali; Dutta, S.; Freire Fierro, Alina; León, Blanca; Moore, Gerry; Mosyakin, Sergei L.; Sennikov, Alexander; Rico Arse, Lourdes; Smith, Gideon F.; Parra O., Carlos (2021)

A Special-purpose Committee on Virtual Participation in theNomenclature Section (NS) was established at the XIX InternationalBotanical Congress in Shenzhen, China in 2017 (Wilson in Taxon68: 160–162. 2019). The mandate of ...
Deciphering the Limitations and Antibacterial Mechanism of Cruzioseptins

Valdivieso Rivera, Fernando; Bermúdez Puga, Sebastián Armando; Proaño Bolaños, Carolina; de Almeida, José R. (Scopus, 2022)

Antimicrobial peptides consist mainly of membrane-active sequences, which are potentially relevant to antibiotic resistance era. In this context, a novel family of peptides isolated from the skin secretion of Cruziohyla ...
A palaeoecological perspective on the transformation of the tropical Andes by early human activity

Bush, M.B.; Rozas Davila, R.; Raczka, M.; Nascimento, M.; Valencia, Bryan G.; Sales, R. K.; McMichael, C. N. H.; Gosling, W. D. (Scopus, 2022)

Palaeoecological records suggest that humans have been in the Andes since at least 14 000 years ago. Early human impacts on Andean ecosystems included an increase in fire activity and the extinction of the Pleistocene ...
An experimental protocol for molecular biology lab at an Amazonian University

Valdivieso Rivera, Fernando; de Almeida, José R.; Proaño Bolaños, Carolina (Scopus, 2022)

Laboratory-based practical classes are an essential component in teaching molecular biology for undergraduate students. Universidad Regional Amazonica Ikiam is a higher education institution located in the Ecuadorian Amazon ...
Forest Ecosystem Fragmentation in Ecuador: Challenges for Sustainable Land Use in the Tropical Andean

Kyoung Noh, Jin; Echeverria, Cristian; Gaona, Gabriel; Kleemann, Janina; Koo, Hongmi; Fürst, Christine; Cuenca, Pablo (Scopus, 2022)

Natural ecosystems are declining and fragmenting globally at unprecedented rates. Fragmentation of natural ecosystems leads to decline in functions and services with severe impact on people. In Ecuador, despite establishment ...
Deforestation in Continental Ecuador with a Focus on Protected Areas

Kleemann, Janina; Zamora, Camilo; Villacis Chiluisa, Alexandra Belen; Cuenca, Pablo; Koo, Hongmi; Kyoung Noh, Jin; Fürst, Christine; Thiel, Michael (Scopus, 2022)

Forest conservation is of particular concern in tropical regions where a large refuge of biodiversity is still existing. These areas are threatened by deforestation, forest degradation and fragmentation. Especially, pressures ...
Evaluation of the Circular Economy in a Pitahaya Agri-Food Chain

Diéguez Santana, Karel; Sarduy Pereira, Liliana B.; Sablón Cossío, Neyfe (Scopus, 2022)

Over the last decade, the circular economy (CE) has attracted attention due to the current unsustainable model of production and consumption, which involves an increased resource use and depletion. Agri-food is one of ...
Assessing the conservation of eastern Ecuadorian cloud forests in climate change scenarios

R.R.de Meyer, Alexander P.; Ortega Andrade, H. Mauricio; Massaine Moulatlet, Gabriel (Scopus, 2022)

The Tropical Montane Cloud Forests (TMCF) of South America are ecosystems facing rapid changes due to global warming. Herein, we used species climatic niche models to reconstruct the climatic boundaries of TMCF and to ...
Estimation of Current and Future Suitable Areas for Tapirus pinchaque in Ecuador

Pedro Ariel, Ordoñez Jiménez; Chicaiza Ortiz, Cristhian David; Herrera Feijoo, Robinson J.; Domínguez Gaibor, Isabel; Mateo, Rubén G. (2021)

At present, climate change is a direct threat to biodiversity and its effects are evidenced by an increasingly accelerated loss of biodiversity. This study identified the main threats presently facing the Tapirus pinchaque ...

Mostrando ítems 181-200 de 552

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