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[PMID]:29216244
[Au] Autor:Khan SM; Bain RES; Lunze K; Unalan T; Beshanski-Pedersen B; Slaymaker T; Johnston R; Hancioglu A
[Ad] Endereço:Division of Data, Research and Policy, UNICEF, New York City, New York, United States of America.
[Ti] Título:Optimizing household survey methods to monitor the Sustainable Development Goals targets 6.1 and 6.2 on drinking water, sanitation and hygiene: A mixed-methods field-test in Belize.
[So] Source:PLoS One;12(12):e0189089, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: The Sustainable Development Goals (SDGs) require household survey programmes such as the UNICEF-supported Multiple Indicator Cluster Surveys (MICS) to enhance data collection to cover new indicators. This study aims to evaluated methods for assessing water quality, water availability, emptying of sanitation facilities, menstrual hygiene management and the acceptability of water quality testing in households which are key to monitoring SDG targets 6.1 and 6.2 on drinking Water, Sanitation and Hygiene (WASH) and emerging issues. METHODS: As part of a MICS field test, we interviewed 429 households and 267 women age 15-49 in Stann Creek, Belize in a split-sample experiment. In a concurrent qualitative component, we conducted focus groups with interviewers and cognitive interviews with respondents during and immediately following questionnaire administration in the field to explore their question comprehension and response processes. FINDINGS: About 88% of respondents agreed to water quality testing but also desired test results, given the potential implications for their own health. Escherichia coli was present in 36% of drinking water collected at the source, and in 47% of samples consumed in the household. Both questions on water availability necessitated probing by interviewers. About one quarter of households reported emptying of pit latrines and septic tanks, though one-quarter could not provide an answer to the question. Asking questions on menstrual hygiene was acceptable to respondents, but required some clarification and probing. CONCLUSIONS: In the context of Belize, this study confirmed the feasibility of collecting information on the availability and quality of drinking water, emptying of sanitation facilities and menstrual hygiene in a multi-purpose household survey, indicating specific areas to improve question formulation and field protocols. Improvements have been incorporated into the latest round of MICS surveys which will be a major source of national data for monitoring of SDG targets for drinking water, sanitation and hygiene and emerging issues for WASH sector programming.
[Mh] Termos MeSH primário: Conservação dos Recursos Naturais
Água Potável
Saneamento/estatística & dados numéricos
[Mh] Termos MeSH secundário: Belize
Escherichia coli/isolamento & purificação
Feminino
Seres Humanos
Menstruação
Inquéritos e Questionários
Microbiologia da Água
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Drinking Water)
[Em] Mês de entrada:1712
[Cu] Atualização por classe:171226
[Lr] Data última revisão:
171226
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171208
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0189089


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[PMID]:29188688
[Au] Autor:Williams SJ; Jones JPG; Annewandter R; Gibbons JM
[Ti] Título:Cultivation can increase harvesting pressure on overexploited plant populations.
[So] Source:Ecol Appl;24(8):2050-62, 2014.
[Is] ISSN:1051-0761
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Captive breeding and cultivation of overharvested species is frequently proposed as a conservation strategy, yet there is little evidence under what conditions, if at all, the strategy is effective. We created a bioeconomic model to investigate the socioeconomic conditions favoring cultivation over wild harvesting and likely impacts on the wild population. We parameterize the model with the case study of illegal xaté palm (Chamaedorea ernesti-augusti) harvesting in Belize and Guatemala. We examine how changes in law enforcement, a price premium for cultivated leaf, land ownership, and alternative income might affect decisions to cultivate and the impact of cultivation on wild populations. We show that those switching to cultivation are largely not wild harvesters because of barriers such as land ownership. We also find that if harvesters do switch to cultivation, they may have a negative effect on the wild population through harvesting of material to set up plantations. We found increasing alternative income reduces harvesting pressure and suggests the provision of alternative livelihoods would more directly reduce pressure on the wild population. Although schemes to encourage cultivation seem an appealing conservation intervention, we urge caution in assuming that people will readily adopt cultivation of wild harvested species or that this would necessarily reduce impacts on wild populations.
[Mh] Termos MeSH primário: Agricultura
Arecaceae/fisiologia
Conservação dos Recursos Naturais/métodos
[Mh] Termos MeSH secundário: Belize
Simulação por Computador
Monitoramento Ambiental
Guatemala
Modelos Biológicos
Dinâmica Populacional
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1712
[Cu] Atualização por classe:171221
[Lr] Data última revisão:
171221
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171201
[St] Status:MEDLINE


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[PMID]:28658274
[Au] Autor:Harmsen BJ; Foster RJ; Sanchez E; Gutierrez-González CE; Silver SC; Ostro LET; Kelly MJ; Kay E; Quigley H
[Ad] Endereço:Environmental Research Institute, University of Belize, Belmopan, Belize.
[Ti] Título:Long term monitoring of jaguars in the Cockscomb Basin Wildlife Sanctuary, Belize; Implications for camera trap studies of carnivores.
[So] Source:PLoS One;12(6):e0179505, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:In this study, we estimate life history parameters and abundance for a protected jaguar population using camera-trap data from a 14-year monitoring program (2002-2015) in Belize, Central America. We investigated the dynamics of this jaguar population using 3,075 detection events of 105 individual adult jaguars. Using robust design open population models, we estimated apparent survival and temporary emigration and investigated individual heterogeneity in detection rates across years. Survival probability was high and constant among the years for both sexes (φ = 0.78), and the maximum (conservative) age recorded was 14 years. Temporary emigration rate for the population was random, but constant through time at 0.20 per year. Detection probability varied between sexes, and among years and individuals. Heterogeneity in detection took the form of a dichotomy for males: those with consistently high detection rates, and those with low, sporadic detection rates, suggesting a relatively stable population of 'residents' consistently present and a fluctuating layer of 'transients'. Female detection was always low and sporadic. On average, twice as many males than females were detected per survey, and individual detection rates were significantly higher for males. We attribute sex-based differences in detection to biases resulting from social variation in trail-walking behaviour. The number of individual females detected increased when the survey period was extended from 3 months to a full year. Due to the low detection rates of females and the variable 'transient' male subpopulation, annual abundance estimates based on 3-month surveys had low precision. To estimate survival and monitor population changes in elusive, wide-ranging, low-density species, we recommend repeated surveys over multiple years; and suggest that continuous monitoring over multiple years yields even further insight into population dynamics of elusive predator populations.
[Mh] Termos MeSH primário: Distribuição Animal
Animais Selvagens
Panthera
[Mh] Termos MeSH secundário: Animais
Comportamento Animal
Belize
Feminino
Masculino
Dinâmica Populacional
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170920
[Lr] Data última revisão:
170920
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170629
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0179505


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[PMID]:28610300
[Au] Autor:Stonis JR; Remeikis A; Diskus A; Megoran N
[Ad] Endereço:Lithuanian University of Educational Sciences and Baltic-American Biotaxonomy Institute, Studentu St. 39, Vilnius LT-08106, Lithuania.. stonis@leu.lt.
[Ti] Título:New species of leaf-mining Nepticulidae (Lepidoptera) from the Neotropical and Ando-Patagonian regions, with new data on host plants.
[So] Source:Zootaxa;4272(1):1-39, 2017 05 26.
[Is] ISSN:1175-5334
[Cp] País de publicação:New Zealand
[La] Idioma:eng
[Ab] Resumo:The paper treats fifteen species of leaf-mining pygmy moths (Insecta, Lepidoptera, Nepticulidae) discovered in the Neotropics (British Virgin Islands, Belize, Costa Rica, Venezuela, and Ecuador), and Ando-Patagonian region (Argentina and Chile). Except for two species, all belong to Stigmella Schrank. Twelve species are new, and are named and described in the current paper: Stigmella apicibrunella Diskus & Stonis, sp. nov.; S. decora Diskus & Stonis, sp. nov.; S. unicaudata Remeikis & Stonis, sp. nov.; S. sanmartini Remeikis & Stonis, sp. nov.; S. patula Remeikis & Stonis, sp. nov.; S. torosa Remeikis & Stonis, sp. nov.; S. monstrata Remeikis & Stonis, sp. nov.; S. huahumi Remeikis & Stonis, sp. nov.; S. venezuelica Remeikis & Stonis, sp. nov.; S. virginica Remeikis & Stonis, sp. nov.; Fomoria miranda Diskus & Stonis, sp. nov.; and Hesperolyra robinsoni Stonis, sp. n. Newly discovered variation of male genitalia of the Andean Stigmella rudis Puplesis & Robinson, 2000 is briefly discussed, and the formerly poorly understood Stigmella hylomaga (Meyrick, 1931) is redescribed and documented with photographs for the first time. We also present more photographs and add some addtional information on Stigmella gallicola van Nieukerken & Nishida, a recently described gall-maker from Costa Rica.The paper also provides new host-plant data: some of the described (or redescribed) species are reported for the first time as leaf-miners on plants belonging to Euphorbiaceae (Acalypha padifolia Kunth), Salicaceae (Azara microphylla Hook. f.), Fabaceae (Inga spectabilis (Vahl) Willd. or I. edulis Mart.), Rhamnaceae (Colletia spinosissima J. F. Gmel.), Geraniaceae or Vivianiaceae (Rhynchotheca spinosa Ruiz & Pav.), and Asteraceae (Mutisia decurrens Cav.). All species treated in the paper are illustrated with photographs of the adults and genitalia, a distribution map, and also photographs of the leaf-mines and host plants when available.
[Mh] Termos MeSH primário: Lepidópteros
[Mh] Termos MeSH secundário: Animais
Argentina
Belize
Chile
Costa Rica
Equador
Masculino
Plantas
Venezuela
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170809
[Lr] Data última revisão:
170809
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170615
[St] Status:MEDLINE
[do] DOI:10.11646/zootaxa.4272.1.1


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[PMID]:28404832
[Au] Autor:Rosenthal J; Largaespada N; Bailey LB; Cannon M; Alverson CJ; Ortiz D; Kauwell GP; Sniezek J; Figueroa R; Daly R; Allen P
[Ad] Endereço:National Center on Birth Defects and Developmental Disabilities, Centers for Disease Control and Prevention, Atlanta, GA; jyr4@cdc.gov.
[Ti] Título:Folate Deficiency Is Prevalent in Women of Childbearing Age in Belize and Is Negatively Affected by Coexisting Vitamin B-12 Deficiency: Belize National Micronutrient Survey 2011.
[So] Source:J Nutr;147(6):1183-1193, 2017 Jun.
[Is] ISSN:1541-6100
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Folate deficiency, vitamin B-12 deficiency, and anemia can have adverse effects on birth outcomes. Also, low vitamin B-12 reduces the formation of metabolically active folate. We sought to establish the baseline prevalence of and factors associated with folate deficiency and insufficiency, vitamin B-12 deficiency, and anemia among women of childbearing age (WCBA) in Belize. In 2011, a national probability-based survey was completed among Belizean nonpregnant WCBA aged 15-49 y. Blood samples for determination of hemoglobin, folate (RBC and serum), and vitamin B-12 (plasma) and sociodemographic and health information were collected from 937 women. RBC and serum folate concentrations were measured by microbiologic assay (MBA). Folate status was defined based on both the WHO-recommended radioproteinbinding assay and the assay adjusted for the MBA. The national prevalence estimates for folate deficiency in WCBA, based on serum and RBC folate concentrations by using the assay-matched cutoffs, were 11.0% (95% CI: 8.6%, 14.0%) and 35.1% (95% CI: 31.3%, 39.2%), respectively. By using the assay-matched compared with the WHO-recommended cutoffs, a substantially higher prevalence of folate deficiency was observed based on serum (6.9% absolute difference) and RBC folate (28.9% absolute difference) concentrations. The prevalence for RBC folate insufficiency was 48.9% (95% CI: 44.8%, 53.1%). Prevalence estimates for vitamin B-12 deficiency and marginal deficiency and anemia were 17.2% (95% CI: 14.2%, 20.6%), 33.2% (95% CI: 29.6%, 37.1%), and 22.7% (95% CI: 19.5%, 26.2%), respectively. The adjusted geometric means of the RBC folate concentration increased significantly ( -trend < 0.001) in WCBA who had normal vitamin B-12 status relative to WCBA who were vitamin B-12 deficient. In Belize, the prevalence of folate and vitamin B-12 deficiencies continues to be a public health concern among WCBA. Furthermore, low folate status co-occurred with low vitamin B-12 status, underlining the importance of providing adequate vitamin B-12 and folic acid intake through approaches such as mandatory food fortification.
[Mh] Termos MeSH primário: Deficiência de Ácido Fólico/epidemiologia
Ácido Fólico/sangue
Estado Nutricional
Deficiência de Vitamina B 12/epidemiologia
Vitamina B 12/sangue
Complexo Vitamínico B/sangue
[Mh] Termos MeSH secundário: Adolescente
Adulto
Anemia/sangue
Anemia/epidemiologia
Belize/epidemiologia
Eritrócitos/metabolismo
Feminino
Deficiência de Ácido Fólico/sangue
Deficiência de Ácido Fólico/complicações
Hemoglobinas/metabolismo
Seres Humanos
Meia-Idade
Inquéritos Nutricionais
Prevalência
Fatores de Risco
Deficiência de Vitamina B 12/sangue
Deficiência de Vitamina B 12/complicações
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Hemoglobins); 12001-76-2 (Vitamin B Complex); 935E97BOY8 (Folic Acid); P6YC3EG204 (Vitamin B 12)
[Em] Mês de entrada:1707
[Cu] Atualização por classe:170809
[Lr] Data última revisão:
170809
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170414
[St] Status:MEDLINE
[do] DOI:10.3945/jn.116.242628


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[PMID]:28371910
[Au] Autor:Magnusson DM; Cal F; Boissonnault JS
[Ti] Título:Influence of a Short-Term Disability Awareness Program on Knowledge and Attitudes of School-Aged Children in Southern Belize: Results of a Community-University Partnership.
[So] Source:Phys Ther;97(4):408-416, 2017 Apr 01.
[Is] ISSN:1538-6724
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Background: Little is known about the attitudes of children living in Central America toward people with disabilities or the effectiveness of a disability awareness program in influencing their knowledge and attitudes. Objective: The study objectives were to evaluate the effectiveness of a disability awareness program in influencing Belizean children's knowledge of and attitudes toward people with disabilities in the immediate short term and to describe the development of a university-community partnership that resulted in the development of a culturally appropriate disability awareness program. Design: This was a single-group pretest-posttest quasi-experimental study with cluster sampling. Methods: Study participants included 247 children (11-14 years old) from 8 primary schools in Toledo District, Belize. A paper-based disability awareness survey measuring knowledge of and attitudes toward people with disabilities was administered before and after an intervention. The intervention was a 90-minute multimodal disability awareness program. Hierarchical linear modeling was used to model the influence of the intervention on knowledge of and attitudes toward people with disabilities. Results: Significant improvements in knowledge of and attitudes toward people with disabilities were evident immediately after the intervention. Limitations: Children were not randomized to a control group. Although this feature was a limitation in terms of study design, the researchers believed that respecting the wishes of the school principals by providing the disability awareness intervention to all students was important. Conclusions: This study provided an example of how a university-community partnership can positively influence community outcomes. Further research is needed to assess long-term changes in Belizean children's knowledge of, attitudes toward, and behaviors toward people with disabilities, as well as the social inclusion and participation of children with disabilities.
[Mh] Termos MeSH primário: Pessoas com Deficiência
Educação em Saúde
Conhecimentos, Atitudes e Prática em Saúde
Estudantes
[Mh] Termos MeSH secundário: Adolescente
Belize
Criança
Relações Comunidade-Instituição
Feminino
Seres Humanos
Masculino
Avaliação de Programas e Projetos de Saúde
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170814
[Lr] Data última revisão:
170814
[Sb] Subgrupo de revista:AIM; IM
[Da] Data de entrada para processamento:170404
[St] Status:MEDLINE
[do] DOI:10.2522/ptj.20160139


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[PMID]:28245810
[Au] Autor:Dekker AM; Amick AE; Scholcoff C; Doobay-Persaud A
[Ad] Endereço:Feinberg School of Medicine, Northwestern University, 420 East Superior Street, Chicago, IL, 60611, USA. dekker.m.annette@gmail.com.
[Ti] Título:A mixed-methods needs assessment of adult diabetes mellitus (type II) and hypertension care in Toledo, Belize.
[So] Source:BMC Health Serv Res;17(1):171, 2017 Feb 28.
[Is] ISSN:1472-6963
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: Non-communicable diseases, including diabetes mellitus and hypertension, continue to disproportionately burden low- and middle-income countries. However, little research has been done to establish current practices and management of chronic disease in these settings. The objective of this study was to examine current clinical management and identify potential gaps in care of patients with diabetes mellitus and hypertension in the district of Toledo, Belize. METHODS: The study used a mixed methodology to assess current practices and identify gaps in diabetes mellitus and hypertension care. One hundred and twenty charts of the general clinic population were reviewed to establish disease epidemiology. One hundred and seventy-eight diabetic and hypertensive charts were reviewed to assess current practices. Twenty providers completed questionnaires regarding diabetes mellitus and hypertension management. Twenty-five individuals with diabetes mellitus and/or hypertension answered a questionnaire and in-depth interview. RESULTS: The prevalence of diabetes mellitus and hypertension was 12%. Approximately 51% (n = 43) of patients with hypertension were at blood pressure goal and 26% (n = 21) diabetic patients were at glycemic goal based on current guidelines. Of the patients with uncontrolled diabetes, 49% (n = 29) were on two oral agents and only 10% (n = 6) were on insulin. Providers stated that barriers to appropriate management include concerns prescribing insulin and patient health literacy. Patients demonstrated a general understanding of the concept of chronic illness, however lacked specific knowledge regarding disease processes and self-management strategies. CONCLUSIONS: This study provides an initial overview of diabetes mellitus and hypertension management in a diverse patient population in rural Belize. Results indicate areas for future investigation and possible intervention, including barriers to insulin use and opportunities for lifestyle-specific disease education for patients.
[Mh] Termos MeSH primário: Diabetes Mellitus Tipo 2/terapia
Hipertensão/terapia
Determinação de Necessidades de Cuidados de Saúde
[Mh] Termos MeSH secundário: Adulto
Idoso
Belize/epidemiologia
Diabetes Mellitus Tipo 2/etnologia
Feminino
Acesso aos Serviços de Saúde
Seres Humanos
Hipertensão/etnologia
Masculino
Meia-Idade
Prevalência
População Rural
Autocuidado
Inquéritos e Questionários
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170918
[Lr] Data última revisão:
170918
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170302
[St] Status:MEDLINE
[do] DOI:10.1186/s12913-017-2075-9


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[PMID]:27915182
[Au] Autor:Chicas SD; Omine K; Ford JB; Sugimura K; Yoshida K
[Ad] Endereço:Graduate School of Engineering, Nagasaki University, 1-14 Bunkyo, Nagasaki, 852-8521, Japan; Faculty of Sciences and Technology, University of Belize, Belmopan, Cayo District, Belize. Electronic address: dan_z767@yahoo.com.
[Ti] Título:Using spatial metrics and surveys for the assessment of trans-boundary deforestation in protected areas of the Maya Mountain Massif: Belize-Guatemala border.
[So] Source:J Environ Manage;187:320-329, 2017 Feb 01.
[Is] ISSN:1095-8630
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Understanding the trans-boundary deforestation history and patterns in protected areas along the Belize-Guatemala border is of regional and global importance. To assess deforestation history and patterns in our study area along a section of the Belize-Guatemala border, we incorporated multi-temporal deforestation rate analysis and spatial metrics with survey results. This multi-faceted approach provides spatial analysis with relevant insights from local stakeholders to better understand historic deforestation dynamics, spatial characteristics and human perspectives regarding the underlying causes thereof. During the study period 1991-2014, forest cover declined in Belize's protected areas: Vaca Forest Reserve 97.88%-87.62%, Chiquibul National Park 99.36%-92.12%, Caracol Archeological Reserve 99.47%-78.10% and Colombia River Forest Reserve 89.22%-78.38% respectively. A comparison of deforestation rates and spatial metrics indices indicated that between time periods 1991-1995 and 2012-2014 deforestation and fragmentation increased in protected areas. The major underlying causes, drivers, impacts, and barriers to bi-national collaboration and solutions of deforestation along the Belize-Guatemala border were identified by community leaders and stakeholders. The Mann-Whitney U test identified significant differences between leaders and stakeholders regarding the ranking of challenges faced by management organizations in the Maya Mountain Massif, except for the lack of assessment and quantification of deforestation (LD, SH: 18.67, 23.25, U = 148, p > 0.05). The survey results indicated that failure to integrate buffer communities, coordinate among managing organizations and establish strong bi-national collaboration has resulted in continued ecological and environmental degradation. The information provided by this research should aid managing organizations in their continued aim to implement effective deforestation mitigation strategies.
[Mh] Termos MeSH primário: Conservação dos Recursos Naturais
Monitoramento Ambiental
Agricultura Florestal/estatística & dados numéricos
Sistemas de Informação Geográfica
[Mh] Termos MeSH secundário: Belize
Ecologia
Guatemala
Seres Humanos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1703
[Cu] Atualização por classe:170817
[Lr] Data última revisão:
170817
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161205
[St] Status:MEDLINE


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[PMID]:27145211
[Au] Autor:Hatala AR; Waldram JB
[Ad] Endereço:a Department of Community Health Sciences , University of Manitoba , Winnipeg , Canada.
[Ti] Título:Diagnostic Emplotment in Q'eqchi' Maya Medicine.
[So] Source:Med Anthropol;36(3):273-286, 2017 Apr.
[Is] ISSN:1545-5882
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Medical diagnosis is a process of illness discrimination, categorization, and identification on the basis of careful observation and is central in biomedicine and many traditional medical systems around the world. Through a detailed analysis of several illness episodes and healer interviews among Maya communities in southern Belize, we observe that the diagnostic processes of traditional Q'eqchi' healers reflect patterns of narrative 'emplotment' that engage not simply the individual patient but also significant spiritual and cosmological forces. Three diagnostic techniques of the Q'eqchi' Maya healers are described and their connections to Maya concepts of personhood and cosmovision are presented. This research fosters an appreciation of how Indigenous knowledge systems shape clinical encounters and healing dramas, widening the spheres of clinical narrative co-construction and dialogue beyond the material and physical contexts implicit within Western clinical encounters.
[Mh] Termos MeSH primário: Medicina Tradicional
Terapias Espirituais
[Mh] Termos MeSH secundário: Antropologia Médica
Belize/etnologia
Seres Humanos
Religião
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170828
[Lr] Data última revisão:
170828
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160505
[St] Status:MEDLINE
[do] DOI:10.1080/01459740.2016.1183200


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[PMID]:27806065
[Au] Autor:Sharpe AE; Kamenov GD; Gilli A; Hodell DA; Emery KF; Brenner M; Krigbaum J
[Ad] Endereço:Department of Anthropology, University of Florida, Gainesville, Florida, United States of America.
[Ti] Título:Lead (Pb) Isotope Baselines for Studies of Ancient Human Migration and Trade in the Maya Region.
[So] Source:PLoS One;11(11):e0164871, 2016.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:We examined the potential use of lead (Pb) isotopes to source archaeological materials from the Maya region of Mesoamerica. The main objectives were to determine if: 1) geologic terrains throughout the Maya area exhibit distinct lead isotope ratios (206Pb/204Pb, 207Pb/204Pb, and 208Pb/204Pb), and 2) a combination of lead and strontium ratios can enhance sourcing procedures in the Mesoamerica region. We analyzed 60 rock samples for lead isotope ratios and a representative subset of samples for lead, uranium, and thorium concentrations across the Maya region, including the Northern Lowlands of the Mexican Yucatan Peninsula, the Southern Lowlands of Guatemala and Belize, the Volcanic Highlands, the Belizean Maya Mountains, and the Metamorphic Province/Motagua Valley. Although there is some overlap within certain sub-regions, particularly the geologically diverse Metamorphic Province, lead isotopes can be used to distinguish between the Northern Lowlands, the Southern Lowlands, and the Volcanic Highlands. The distinct lead isotope ratios in the sub-regions are related to the geology of the Maya area, exhibiting a general trend in the lowlands of geologically younger rocks in the north to older rocks in the south, and Cenozoic volcanic rocks in the southern highlands. Combined with other sourcing techniques such as strontium (87Sr/86Sr) and oxygen (δ18O), a regional baseline for lead isotope ratios can contribute to the development of lead isoscapes in the Maya area, and may help to distinguish among geographic sub-regions at a finer scale than has been previously possible. These isotope baselines will provide archaeologists with an additional tool to track the origin and movement of ancient humans and artifacts across this important region.
[Mh] Termos MeSH primário: Migração Humana
Isótopos
Chumbo
[Mh] Termos MeSH secundário: Belize
Geografia
Guatemala
História Antiga
Seres Humanos
México
Solo/química
[Pt] Tipo de publicação:HISTORICAL ARTICLE; JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Isotopes); 0 (Soil); 2P299V784P (Lead)
[Em] Mês de entrada:1706
[Cu] Atualização por classe:171116
[Lr] Data última revisão:
171116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161103
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0164871



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