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1.
Evolution ; 74(11): 2526-2538, 2020 11.
Artigo em Inglês | MEDLINE | ID: mdl-32696463

RESUMO

Brood parasites use the parental care of others to raise their young and sometimes employ mimicry to dupe their hosts. The brood-parasitic finches of the genus Vidua are a textbook example of the role of imprinting in sympatric speciation. Sympatric speciation is thought to occur in Vidua because their mating traits and host preferences are strongly influenced by their early host environment. However, this alone may not be sufficient to isolate parasite lineages, and divergent ecological adaptations may also be required to prevent hybridization collapsing incipient species. Using pattern recognition software and classification models, we provide quantitative evidence that Vidua exhibit specialist mimicry of their grassfinch hosts, matching the patterns, colors and sounds of their respective host's nestlings. We also provide qualitative evidence of mimicry in postural components of Vidua begging. Quantitative comparisons reveal small discrepancies between parasite and host phenotypes, with parasites sometimes exaggerating their host's traits. Our results support the hypothesis that behavioral imprinting on hosts has not only enabled the origin of new Vidua species, but also set the stage for the evolution of host-specific, ecological adaptations.


Assuntos
Mimetismo Biológico/genética , Tentilhões/genética , Especiação Genética , Comportamento de Nidação , Animais , Animais Recém-Nascidos , Fenótipo , Pigmentação/genética , Vocalização Animal , Zâmbia
2.
J Health Care Poor Underserved ; 29(1): 337-348, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29503304

RESUMO

The purpose of this study was to examine the health and well-being of women migrating from predominantly Muslim countries to the U.S. Women from predominantly Muslim countries completed a paper survey on the following topics from June to December in 2016 (N=102): depression; physical functioning; self-reported general health; experiences with health care; and demographic characteristics. There were several women's health-related issues: low rates for mammography and Pap smear screening, and preference for female physicians and/or physicians from the same culture. Only one-third of the participants had received a physical exam in the past year, and having done so was related to higher levels of depression and worse physical functioning. The participants who were not in a refugee camp reported higher levels of depression than those who were.


Assuntos
Depressão/epidemiologia , Nível de Saúde , Migrantes/psicologia , Adulto , Feminino , Inquéritos Epidemiológicos , Humanos , Iraque/etnologia , Pessoa de Meia-Idade , Somália/etnologia , Sudão/etnologia , Migrantes/estatística & dados numéricos , Estados Unidos/epidemiologia
3.
J Infect Public Health ; 11(1): 120-125, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-28668657

RESUMO

Any sexually active person has the possibility of contracting the human papillomavirus (HPV) sometime in their lifetime. HPV vaccines are effective in preventing HPV if obtained prior to viral exposure. Research on knowledge and beliefs of HPV and HPV vaccination among college students in Vietnam is significantly scarce. The purpose of this study is to examine the knowledge and beliefs about HPV among college students in Vietnam compared to college students in the US. This cross-cultural comparison will fill a void in current research on this subject. Over 900 college students (N=932: n=495 in Vietnam and n=437 in the US) participated in a self-administered survey on the knowledge and beliefs about HPV in September and October 2016. Vietnamese participants reported lower levels of knowledge and experiences with the HPV virus and vaccines (p<0.01). Additionally, Vietnamese participants also exhibited more barriers in obtaining the vaccination, as well as, HPV risk denial (p<0.01). The level of knowledge is an important predictor of barriers (p<0.01; ηp2=0.022) and risk denial (p<0.01; ηp2=0.116). On average, both Vietnamese and US participants could correctly answer less than half of the survey questions regarding HPV knowledge. Additionally, provider recommendations are potentially more important than informal connections (e.g. friends, family) to reduce barriers to HPV vaccination (p<0.01; ηp2=0.035) and denial of HPV risks (p<0.05; ηp2=0.008). The increase of knowledge about HPV prevention, including and vaccination, has the potential to be improved through provider interventions. Vietnam could take action toward promoting HPV vaccinations not only at an individual level but also at a national or local level. Further research may examine the effects of a lack of knowledge on HPV-related health outcomes.


Assuntos
Transmissão de Doença Infecciosa/prevenção & controle , Conhecimentos, Atitudes e Prática em Saúde , Infecções por Papillomavirus/epidemiologia , Infecções por Papillomavirus/prevenção & controle , Vacinas contra Papillomavirus/imunologia , Estudantes/psicologia , Adolescente , Adulto , Estudos Transversais , Feminino , Humanos , Masculino , Infecções por Papillomavirus/complicações , Estados Unidos , Vietnã , Adulto Jovem
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