Results 51 to 60 of about 3,145 (174)

Zebra stripes: the questions raised by the answers

Biological Reviews, Volume 100, Issue 6, Page 2660-2680, December 2025.
ABSTRACT Multiple hypotheses have been suggested to explain why the three zebra species (Equus quagga, E. grevyi and E. zebra) are striped. We review how well these theories explain the nature (rather than simply the existence) of the stripes. Specifically, we explore how well different theories explain (i) the form of zebra stripes (especially on ...
Hamish M. Ireland, Graeme D. Ruxton
wiley   +1 more source

Aspectos da atividade de "notificação de barbeiros" pela população no controle de Panstrongylus megistus em 12 municípios da região noroeste do Estado de São Paulo, Brasil, 1974 a 1983 Aspects of "bug reporting" by the local population relating to Panstrongylys megistus surveillance in 12 counties of northeastern S. Paulo State, Brazil, 1974 to 1983

Revista de Saúde Pública, 1990
É mostrada a importância atual da atividade de "notificação de barbeiros" pela população, na vigilância epidemiológica da doença de Chagas no Estado de São Paulo.
Virgília Luna Castor de Lima, Mariko Kato Yaguchi, Zulimar Catarina P. V. Telles Alves   +2 more
doaj   +1 more source

The impacts of woody encroachment on nature's contributions to people in North America and Africa: A systematic review

People and Nature, Volume 7, Issue 11, Page 2585-2601, November 2025.
Abstract Woody encroachment is affecting nature's contributions to people (NCP) in grassy ecosystems around the world, but these impacts have not yet been well summarised. Moreover, the impacts of encroachment are likely to vary depending on the historical ecosystem dynamics, climatic conditions, encroacher species, and the temporal, spatial, cultural ...
Felix Vusumuzi Skhosana, Nicola Stevens, Malebajoa Anicia Maoela, Sally Archibald, Guy Franklin Midgley   +4 more
wiley   +1 more source

Digestive symptoms in patients with Chagas' disease

Acta Médica del Centro, 2014
In order to characterize the gastrointestinal manifestations in patients with American trypanosomiasis a descriptive cross-sectional study was conducted in a population consisting of 130 patients with positive IgG antibodies to Trypanosoma cruzi treated ...
Juan Mario Reyes Vera, Manuel Lara Martín, Sara Esther Díaz Oliva, Ignacio Morales Martínez, Esther Lidia González González   +4 more
doaj  

Epidemiological assessment and outbreak report of Trypanosoma vivax in dairy cattle from the Brazilian Semiarid region

Frontiers in Animal Science
This study aimed to estimate the prevalence and identify risk factors associated with Trypanosoma vivax infection in dairy cattle herds in the Brazilian Semiarid region, as well as report an outbreak of trypanosomiasis.
Basílio Felizardo Lima Neto, Jordania Oliveira Silva, Felipe Boniedj Ventura Alvares, Samira Pereira Batista, Geraldo Moreira Silva Filho, Gláucia Diojânia Azevedo Medeiros, Carla Monadeli Filgueira Rodrigues, Bruno Rafael Fermino, Vinícius Longo Ribeiro Vilela, Vinícius Longo Ribeiro Vilela, Thais Ferreira Feitosa, Thais Ferreira Feitosa   +11 more
doaj   +1 more source

A doença de Chagas e seu controle na América Latina: uma análise de possibilidades Chagas' disease and its control in Latin America: an analysis of possibilities

Cadernos de Saúde Pública, 1993
A doença de Chagas segue como importante agravo à saúde na maior parte da América Latina, afetando 16 milhões de pessoas e colocando sob risco outras dezenas de milhões de indivíduos, geralmente de origem rural, pobres e socialmente marginalizados.
João Carlos P. Dias
doaj   +1 more source

Natural Products from Mexican Medicinal Plants as Promising Trypanocidal Drugs

ChemistrySelect, Volume 10, Issue 37, October 6, 2025.
Chagas disease (American Trypanosomiasis) is caused by the protozoan Trypanosoma cruzi. Worldwide it is one of the seventeen neglected tropical diseases. There is a need of new drugs. This review assesses the literature (2012‐2024) of secondary metabolites isolated from Mexican plants active against this parasite.
Karla Daniela Rodríguez‐Hernández, Elia Guadalupe Jaimes‐Castelán, Ricardo Reyes‐Chilpa   +2 more
wiley   +1 more source

Epidemiological overview of chagas disease in the state of Amazonas, from 2004 to 2014

Revista de Epidemiologia e Controle de Infecção, 2019
Background and Objectives:Chagas disease (CD), caused by Trypanosoma cruzi,a flagellate protozoan, was discovered over 100 years ago, spread throughout the Americas, mainly in South America, affecting millions of people around the world.
André Luiz Rodrigues Menezes, Gerlandes Fernandes de Oliveira, Mariane Albuquerque Lima Ribeiro, Gabriela Vieira de Souza Castro, Renato Abreu Lima, Dionatas Ulises de Oliveira Meneguetti   +5 more
doaj   +1 more source

Infecção chagásica transfusional detectada no programa de controle da doença de Chagas no Estado de São Paulo (Brasil)

Revista de Saúde Pública
O sistema de vigilância da doença de Chagas no Estado de São Paulo propõe investigação minuciosa da presença de triatomíneos nos domicílios, que inclui o controle sorológico de populações moradoras em unidades domiciliares associadas a focos potenciais ...
Dalva Marli Valério Wandertey, Maria Esther de Carvalho, Ézio Mantegazza, Sueli Yasumaru, Luiz Carlos Barradas Barata   +4 more
doaj  

Aspectos ecológicos da tripanossomíase americana: XX - Desenvolvimento e ciclos anuais de colônias de Panstrongylus megistus em ecótopos artificiais, no ambiente peri e extradomiciliar Ecological aspects of South American trypanosomiasis: XX - Development and annual cycles of Panstrongylus megistus colonies in artificial ecotopes in the peri and extradomiciliary environment

Revista de Saúde Pública, 1984
Em colônias de Panstrongylus megistus, espontaneamente desenvolvidas em galinheiros experimentais, pôde-se observar as condições de desenvolvimento, variação e permanência de seus componentes.
Oswaldo Paulo Forattini, Octávio Alves Ferreira, Ernesto Xavier Rabello, José Maria Soares Barata, Jair Lício Ferreira Santos   +4 more
doaj   +1 more source