Search Results - "Cegarra, M."

Whale‐watching trips in Peru lead to increases in tourist knowledge, pro‐conservation intentions and tourist concern for the impacts of whale‐watching on humpback whales by García‐Cegarra, Ana M., Pacheco, Aldo S.

“…Since the implementation of the commercial whaling ban in the 1980s, whale‐watching has become the most important economic activity involving whales worldwide…”
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Bycatch and pollution are the main threats for Burmeister's porpoises inhabiting a high-industrialized bay in the Humboldt Current System by García-Cegarra, Ana M., Hall, Anna, Martínez-López, Emma

“…Pollution and bycatch are two of the main threats for cetaceans worldwide. These threats are exacerbated for nearshore species particularly for those in…”
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Metal concentrations in feathers of red-legged cormorants (Phalacrocorax gaimardi) and sources of plastic in a nesting colony from northern Chile by García-Cegarra, Ana M., Martínez-López, Emma

“…Mining industry is increasing the concentrations of heavy metals in coastal ecosystems of northern Chile. The presence of plastic in the nests of red-legged…”
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Observations of coastal aggregations of the broadnose sevengill shark (Notorynchus cepedianus) in Chilean waters by Bustamante, Carlos, García‐Cegarra, Ana M., Vargas‐Caro, Carolina

“…The presence of four sharks was documented in coastal waters of Antofagasta (Chile) using an unmanned aerial video camera. Fishers took advantage of this…”
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Multiple stable isotopes (C, N & S) provide evidence for fin whale (Balaenoptera physalus) trophic ecology and movements in the Humboldt Current System of northern Chile by Andrade, Diego, García-Cegarra, Ana M., Docmac, Felipe, Ñacari, Luis A., Harrod, Chris

“…Reflecting the intense coastal upwelling and high primary productivity characteristic of the Humboldt Current System (HCS), the northern coast of Chile…”
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New northernmost distribution records of the Eastern South Pacific southern right whale (Eubalaena australis), including the first cases from Ecuador and northern Peru by Castro Ayala, Cristina, García-Cegarra, Ana M, Uceda-Vega, Piero, Aguilar, Luis, Kelez, Shaleyla, Buchan, Susannah J, Félix, Fernando, Stack, Stephanie H, Van Waerebeek, Koen

“…The Eastern South Pacific Right Whale (SRW) ( Eubalaena australis ) population has gained interest due to its Critically Endangered conservation status. So…”
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Statistical Dependence for Detecting Whale-Watching Effects on Humpback Whales by GARCIA-CEGARRA, ANA M., VILLAGRA, DAMIAN, GALLARDO, DIEGO I., PACHECO, ALDO S.

“…Whale-watching is one of the fastest growing ecotourism industries and involves the observation of endangered wild cetacean species. However, this growth has…”
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New records of odontocete and mysticete predation by orcas in the Humboldt current system, South Pacific Ocean by García-Cegarra, Ana M., Oña, Javier, Arancibia, Camilo, Aguilar, Luis, Toro, Frederick

“…Orcas ( Orcinus orca ) are the top marine predators of the ocean, targeting multiple taxa including teleost fishes, elasmobranchs, seabirds, sea turtles,…”
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Cohomology of Homotopy Colimits of Simplicial Sets and Small Categories by Cegarra, Antonio M.

“…This paper deals with well-known weak homotopy equivalences that relate homotopy colimits of small categories and simplicial sets. We show that these weak…”
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Kin relationships in cultural species of the marine realm: case study of a matrilineal social group of sperm whales off Mauritius island, Indian Ocean by Sarano, Francois, Girardet, Justine, Sarano, Véronique, Vitry, Hugues, Preud'homme, Axel, Heuzey, René, Garcia-Cegarra, Ana M, Madon, Bénédicte, Delfour, Fabienne, Glotin, Hervé, Adam, Olivier, Jung, Jean-Luc

“…Understanding the organization and dynamics of social groups of marine mammals through the study of kin relationships is particularly challenging Here, we…”
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Cohomology of Presheaves of Monoids by Carrasco, Pilar, Cegarra, Antonio M.

“…The purpose of this work is to extend Leech cohomology for monoids (and so Eilenberg-Mac Lane cohomology of groups) to presheaves of monoids on an arbitrary…”
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Red-legged cormorant uses plastic as nest material in an artificial breeding colony of Atacama Desert coast by Garcia-Cegarra, Ana M., Ramirez, Roberto, Orrego, Rodrigo

“…Plastic debris affects the survival of numerous marine species such as seabirds. Several studies have report ingestion and entanglement of seabird species in…”
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Cohomology of monoids with operators by Cegarra, A. M.

“…This paper is dedicated to introducing and studying a cohomology theory for monoids enriched with the action by endomorphisms of a fixed monoid of operators…”
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Collision risk areas between fin and humpback whales with large cargo vessels in Mejillones Bay (23°S), northern Chile by García-Cegarra, Ana M., Pacheco, Aldo S.

“…Enclosed areas such as embayments with high levels of marine traffic may put at co-occurring cetaceans at risk due to collisions with vessels. The distribution…”
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Cognitive impairment and risk factor prevalence in a population over 60 in Argentina by Arizaga, Raul L, Gogorza, Roxana E, Allegri, Ricardo F, Baumann, Patricia D, Morales, María C, Harris, Paula, Pallo, Vicente, Cegarra, María M

“…Epidemiological data on dementia and cognitive impairment are scarce in South America. In Argentina, no dementia/cognitive impairment population-based…”
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Persistence, bioaccumulation and vertical transfer of pollutants in long-finned pilot whales stranded in Chilean Patagonia by Garcia-Cegarra, Ana M., Jung, Jean-Luc, Orrego, Rodrigo, Padilha, Janeide de A., Malm, Olaf, Ferreira-Braz, Bernardo, Santelli, Ricardo E., Pozo, Karla, Pribylova, Petra, Alvarado-Rybak, Mario, Azat, Claudio, Kidd, Karen A., Espejo, Winfred, Chiang, Gustavo, Bahamonde, Paulina

“…Long-finned pilot whales (LFPW) are cetaceans with strong social groups often involved in mass strandings worldwide. However, these beachings occur for reasons…”
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Higher cohomologies for presheaves of commutative monoids by CARRASCO, Pilar, CEGARRA, Antonio M.

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Application of a micromechanical model of three phases to estimating the porosity of mortar by ultrasound by Hernández, M.G., Anaya, J.J., Ullate, L.G., Cegarra, M., Sanchez, T.

“…Among the factors that affect the durability of cement-based materials, porosity is important due to its role in transporting substances inside the material…”
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Concentration of trace elements in long-finned pilot whales stranded in northern Patagonia, Chile by Garcia-Cegarra, Ana M., de A. Padilha, Janeide, Braz, Bernardo Ferreira, Ricciardi, Rocío, Espejo, Winfred, Chiang, Gustavo, Bahamonde, Paulina

“…The use of trace metals and rare-earth elements (REEs) is increasing in the mining, metallurgic, electronic, and automobile industries due to their magnetic,…”
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A Cohomology Theory for Commutative Monoids by Calvo-Cervera, María, Cegarra, Antonio

“…Extending Eilenberg–Mac Lane’s cohomology of abelian groups, a cohomology theory is introduced for commutative monoids. The cohomology groups in this theory…”
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