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Interação com a pesca: implicações na conservação da toninha, Pontoporia blainvillei (Cetacea, Pontoporiidae) no litoral do estado de São Paulo, SP; Fisheries interactions: implications on the conservation of franciscana, Pontoporia blainvillei (Cetacea, Pontoporiidae) in the coastal area of São Paulo state

Bertozzi, Carolina Pacheco
Fonte: Biblioteca Digitais de Teses e Dissertações da USP Publicador: Biblioteca Digitais de Teses e Dissertações da USP
Tipo: Tese de Doutorado Formato: application/pdf
Publicado em 14/12/2009 PT
Relevância na Pesquisa
37.171548%
Este trabalho tem por objetivo investigar a interação da pescaria de espera e as capturas acidentais de Pontoporia blainvillei, bem como a implicação da atividade na conservação da espécie. Para tanto, foram descritas e analisadas a atividade pesqueira, avaliadas as capturas acidentais, estimadas a mortalidade e estudados alguns aspectos da estrutura populacional, como a estimativa da idade, do crescimento e de parâmetros de algumas variáveis reprodutivas das toninhas acidentalmente capturadas no litoral do Estado de São Paulo. O monitoramento sistemático da frota pesqueira do município da Praia Grande durante o período de julho de 1999 a dezembro de 2008 permitiu uma avaliação temporal das capturas acidentais e dos índices de captura por unidade de esforço de pesca. Cinco tipos de redes de espera e um tipo de rede de arrastão de praia foram utilizados pela frota pesqueira da Praia Grande, sendo observadas capturas em quatro tipos de redes de espera. Um total de 91 toninhas foram acidentalmente capturadas e os valores de CPUE indicam que as redes de superfície boeira e a rede demersal fundo grossa são as responsáveis pelos maiores valores de captura nos meses de outono e inverno. Ao longo de todo o litoral paulista foi verificado o uso de redes de emalhe de espera em áreas costeiras...

Fluorescência dental: possível aplicação forense; Fluorescence dental: potential application in forensic science

Silva, Ricarda Duarte da
Fonte: Biblioteca Digitais de Teses e Dissertações da USP Publicador: Biblioteca Digitais de Teses e Dissertações da USP
Tipo: Tese de Doutorado Formato: application/pdf
Publicado em 02/08/2012 PT
Relevância na Pesquisa
46.911846%
Nos casos de identificação de ossadas, segmentos do esqueleto ou ossos isolados, buscar o diagnóstico dos dados biotipológicos, como a idade do indivíduo, proporciona a possibilidade de estabelecer uma conexão com suspeitos desaparecidos. Em dentes naturais a fluorescência ocorre em dentina e também em esmalte, embora este apresente menor índice de fluorescência. É sabido que o esmalte, a dentina e polpa sofrem mudanças notáveis durante a vida do indivíduo. O esmalte torna-se mais mineralizado, liso e fino, sofre desgaste fisiológico e patológico o que pode causar áreas de exposição da dentina que altera a expressão cromática do dente natural. A polpa diminui em volume devido à deposição de dentina secundária, assim a dentina torna-se espessa com o tempo. Sendo o esmalte e a dentina responsáveis pelo fenômeno de fluorescência dental e estes elementos dentários sofrem alteração significativa durante a vida, sugere-se avaliar tal fenômeno sob a luz da odontologia legal com vista a desenvolver um método para se estimar a idade de um indivíduo. O presente estudo tem por propósito verificar a existência de correlação entre idade e alteração da fluorescência em dentes in vivo. A amostra foi constituída por 66 brasileiros...

A cronologia de desenvolvimento do segundo molar e sua relação com a estimativa forense da idade

Castel-Branco, Ana Margarida Nunes F.
Fonte: Universidade Católica Portuguesa Publicador: Universidade Católica Portuguesa
Tipo: Dissertação de Mestrado
Publicado em 09/09/2014 POR
Relevância na Pesquisa
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Introdução: A estimativa da idade insere-se numa área de conhecimento científico que tem vindo a assumir especial importância no âmbito da Medicina Dentária Forense. Apresenta maior relevância em indivíduos vivos e o seu principal objeto de estudo são as crianças, constituindo uma ferramenta chave para o estabelecimento da sua identidade. O estudo da maturação dentária, através de radiografias panorâmicas, constitui um dos métodos mais credíveis para a estimativa da idade. Objetivos: Avaliar a aplicabilidade do método de Demirjian para a estimativa da idade em crianças e investigar a possível correlação entre o estadio de mineralização do dente 3.7 e a idade cronológica da criança, numa amostra populacional da Clínica Dentária da Universidade Católica Portuguesa de Viseu. Materiais e métodos: Para o efeito, serão examinadas as radiografias panorâmicas de todas as crianças constantes no ficheiro clínico da CDU – Viseu, entre os 5 e os 16 anos de idade. Este estudo foi baseado na escala de pontuações do segundo molar em ambos os sexos, para os diferentes estadios de desenvolvimento dentário, segundo o método de Demirjian. A diferença entre a idade dentária e a idade cronológica foi analisada e comparada através da utilização de modelos de regressão multilinear. Resultados: O desenvolvimento do dente 3.7 assente na metodologia desenvolvida por Demirjian é um indicador válido para prever a idade em crianças e adolescentes da população de Viseu...

Age and growth of the Atlantic chub mackerel Scomber colias Gmelin, 1789 off Madeira Island

Vasconcelos, Joana; Dias, Manuel A.; Faria, Graça
Fonte: Universidade dos Açores Publicador: Universidade dos Açores
Tipo: Artigo de Revista Científica
Publicado em //2011 ENG
Relevância na Pesquisa
37.07873%
The Atlantic chub mackerel, Scomber colias Gmelin, 1789, is one of the main fisheries resources of Madeira Island. It is caught by a small and coastal purse-seine fleet that traditionally operates around the island. From January 2002 to December 2003, monthly samples of chub mackerel were collected from landings by this commercial fishing fleet. A total of 2212 sagitta otoliths were extracted for age readings from 1068 males (17.4-41.7 cm total length, TL), 1066 females (18.0-41.2 cm TL) and 78 undetermined (13.0-26.8 cm TL). A single reader aged the fishes using surface-read whole otoliths aiming to build annual age-length keys. Age readings precision and reader consistency were assessed by using the average percentage error index (APE ≤ 1.52). Ages were validated up to 4 years using marginal analyses. Estimated mean lengths at age and length von Bertalanffy growth curve parameters, estimated by non-linear methods, showed no significant differences (p>0.05) between sexes (L∞=50.08 cm TL, k=0.252 yr-1 and t0=-1.339 yr; males and females combined). Length-weight relationships were estimated aiming to convert growth in length to growth in weight. No differences between sexes were found in length-weight parameters (P>0.05). For sexes combined...

Comparison of TW2 and TW3 skeletal age differences in a Brazilian population

Ortega,Ana Isabel; Haiter-Neto,Francisco; Ambrosano,Gláucia Maria Bovi; Bóscolo,Frab Norberto; Almeida,Solange Maria; Casanova,Marcia Spinelli
Fonte: Faculdade De Odontologia De Bauru - USP Publicador: Faculdade De Odontologia De Bauru - USP
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/04/2006 EN
Relevância na Pesquisa
36.938813%
OBJECTIVE: The aim of this study was to determine the differences between the skeletal ages estimated by TW2 and TW3 methods through their RUS and Carpal systems. MATERIAL AND METHODS: A sample of two hundred and forty hand and wrist radiographs of male and female Brazilian children aged 84-199 months was evaluated by five observers. The Dunnet test was performed for statistical analysis. RESULTS: Results showed higher skeletal ages estimated by TW2RUS than TW3RUS and Carpal for both genders. For girls a statistically significant difference (p<0.05) was observed between TW2RUS and TW3RUS over the entire age range. For boys this difference was observed from 108 months onwards. In general RUS skeletal ages were higher than the chronological age and Carpal skeletal ages for both genders. The overestimation of chronological age was smaller for TW3RUS than for TW2RUS, and this last system showed a statistically significant difference regarding chronological age over the entire age range for girls, whereas for boys this difference was seen from 132 months onwards. For girls TW3 RUS and Carpal showed a significant difference regarding chronological age in the oldest age groups; in boys TW3RUS did not show a significant difference regarding chronological age. For Carpal...

Re-Evaluating Neonatal-Age Models for Ungulates: Does Model Choice Affect Survival Estimates?

Grovenburg, Troy W.; Monteith, Kevin L.; Jacques, Christopher N.; Klaver, Robert W.; DePerno, Christopher S.; Brinkman, Todd J.; Monteith, Kyle B.; Gilbert, Sophie L.; Smith, Joshua B.; Bleich, Vernon C.; Swanson, Christopher C.; Jenks, Jonathan A.
Fonte: Public Library of Science Publicador: Public Library of Science
Tipo: Artigo de Revista Científica
Publicado em 29/09/2014 EN
Relevância na Pesquisa
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New-hoof growth is regarded as the most reliable metric for predicting age of newborn ungulates, but variation in estimated age among hoof-growth equations that have been developed may affect estimates of survival in staggered-entry models. We used known-age newborns to evaluate variation in age estimates among existing hoof-growth equations and to determine the consequences of that variation on survival estimates. During 2001–2009, we captured and radiocollared 174 newborn (≤24-hrs old) ungulates: 76 white-tailed deer (Odocoileus virginianus) in Minnesota and South Dakota, 61 mule deer (O. hemionus) in California, and 37 pronghorn (Antilocapra americana) in South Dakota. Estimated age of known-age newborns differed among hoof-growth models and varied by >15 days for white-tailed deer, >20 days for mule deer, and >10 days for pronghorn. Accuracy (i.e., the proportion of neonates assigned to the correct age) in aging newborns using published equations ranged from 0.0% to 39.4% in white-tailed deer, 0.0% to 3.3% in mule deer, and was 0.0% for pronghorns. Results of survival modeling indicated that variability in estimates of age-at-capture affected short-term estimates of survival (i.e., 30 days) for white-tailed deer and mule deer...

Estimated age and gender profile of individuals missed by a home-based HIV testing and counselling campaign in a Botswana community

Novitsky, Vlad; Bussmann, Hermann; Okui, Lillian; Logan, Andrew; Moyo, Sikhulile; van Widenfelt, Erik; Mmalane, Mompati; Lei, Quanhong; Holme, Molly P; Makhema, Joseph; Lockman, Shahin; Degruttola, Victor; Essex, M
Fonte: International AIDS Society Publicador: International AIDS Society
Tipo: Artigo de Revista Científica
EN_US
Relevância na Pesquisa
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Introduction: It would be useful to understand which populations are not reached by home-based HIV-1 testing and counselling (HTC) to improve strategies aimed at linking these individuals to care and reducing rates of onward HIV transmission. Methods: We present the results of a baseline home-based HTC (HBHTC) campaign aimed at counselling and testing residents aged 16 to 64 for HIV in the north-eastern sector of Mochudi, a community in Botswana with about 44,000 inhabitants. Collected data were compared with population references for Botswana, the United Nations (UN) estimates based on the National Census data and the Botswana AIDS Impact Survey IV (BAIS-IV). Analyzed data and references were stratified by age and gender. Results: A total of 6238 age-eligible residents were tested for HIV-1; 1247 (20.0%; 95% CI 19.0 to 21.0%) were found to be HIV positive (23.7% of women vs. 13.4% of men). HIV-1 prevalence peaked at 44% in 35- to 39-year-old women and 32% in 40- to 44-year-old men. A lower HIV prevalence rate, 10.9% (95% CI 9.5 to 12.5%), was found among individuals tested for the first time. A significant gender gap was evident in all analyzed subsets. The existing HIV transmission network was analyzed by combining phylogenetic mapping and household structure. Between 62.4 and 71.8% of all HIV-positive individuals had detectable virus. When compared with the UN and BAIS-IV estimates...

Patterns of telomere length change with age in aquatic vertebrates and the phylogenetic distribution of the pattern among jawed vertebrates.

Izzo, Christopher
Fonte: Universidade de Adelaide Publicador: Universidade de Adelaide
Tipo: Tese de Doutorado
Publicado em //2010
Relevância na Pesquisa
37.011792%
Telomeres, the protective caps at the ends of all vertebrate chromosomes, naturally undergo changes in length. These changes in telomere lengths may be a “molecular clock” by providing a counting mechanism of DNA replication events. In populations of jawed vertebrates (gnathostomes), telomere length has been shown to change with age; and thus measurements of telomere lengths may provide a novel means of determining the ages of free-living animals. Determinations of the age structure of populations of aquatic vertebrates (teleosts, chondrichthyans and marine mammals) are vital for sustainable management and conservation efforts. Yet, the commonly applied increment based ageing techniques are limited by the subjectivity of increment patterning and destructive sampling. I aimed to assess the application of telomere length as an age determinate for populations of aquatic vertebrates and to evaluate the biological implications and evolutionary origins of this trait amongst the gnathostomes. Telomere length change with age was investigated in an exemplar chondrichthyan, teleost and marine mammal species, to determine whether aquatic gnathostomes share the general pattern of declining telomeres with age, as found in terrestrial mammals. Chapter Two provides the first assessment of telomere length change with age in a chondrichthyan species...

Newer equations better predict lung age in smokers: A retrospective analysis using a cohort of randomly selected participants

Newbury, W.; Lorimer, M.; Crockett, A.
Fonte: Strategic Medical Publishing Publicador: Strategic Medical Publishing
Tipo: Artigo de Revista Científica
Publicado em //2012 EN
Relevância na Pesquisa
36.957612%
AIMS: To produce new lung age equations using four previously published predictive equations for forced expiratory volume in 1 second and to compare them with lung age equations published in 1985 and 2010. METHODS: Initial comparisons used phantom subjects of different ages and levels of lung function. Comparison of lung age equations by regression analysis used an independent dataset of 3,206 randomly selected community-dwelling adults aged >18 years in the North West Adelaide Health Study. RESULTS: The more recent equations estimated lung age as greater than chronological age as lung function decreased, whereas the oldest equations estimated lung age as less than chronological age until lung function was severely limited. Significant differences (p<0.001) were detected by regression analysis, with four newer lung age equations being significantly different from the 1985 equation and one being no different. CONCLUSIONS: Lung age estimates using six predictive equations spanning 50 years show differences attributable to cohort and period effects. This reinforces the need for regular updating of predictive equations for lung function. These results further confirm the need to use modern lung age equations which will provide a stronger message in smoking cessation counselling.; Wendy Newbury...

Global, regional, and national age-sex specific all-cause and cause-specific mortality for 240 causes of death, 1990-2013: a systematic analysis for the Global Burden of Disease Study 2013

Lalloo, R.; GBD 2013 Mortality and Causes of Death Collaborators
Fonte: Elsevier Publicador: Elsevier
Tipo: Artigo de Revista Científica
Publicado em //2015 EN
Relevância na Pesquisa
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Background: Up-to-date evidence on levels and trends for age-sex-specific all-cause and cause-specific mortality is essential for the formation of global, regional, and national health policies. In the Global Burden of Disease Study 2013 (GBD 2013) we estimated yearly deaths for 188 countries between 1990, and 2013. We used the results to assess whether there is epidemiological convergence across countries. Methods: We estimated age-sex-specific all-cause mortality using the GBD 2010 methods with some refinements to improve accuracy applied to an updated database of vital registration, survey, and census data. We generally estimated cause of death as in the GBD 2010. Key improvements included the addition of more recent vital registration data for 72 countries, an updated verbal autopsy literature review, two new and detailed data systems for China, and more detail for Mexico, UK, Turkey, and Russia. We improved statistical models for garbage code redistribution. We used six different modelling strategies across the 240 causes; cause of death ensemble modelling (CODEm) was the dominant strategy for causes with sufficient information. Trends for Alzheimer's disease and other dementias were informed by meta-regression of prevalence studies. For pathogen-specific causes of diarrhoea and lower respiratory infections we used a counterfactual approach. We computed two measures of convergence (inequality) across countries: the average relative difference across all pairs of countries (Gini coefficient) and the average absolute difference across countries. To summarise broad findings...

Mineralization of mandibular third molars can estimate chronological age-Brazilian indices

de Oliveira, Fernando Toledo; Alvares Capelozza, Ana Lucia; Pereira Lauris, Jose Roberto; Fischer Rubira de Bullen, Izabel Regina
Fonte: ELSEVIER IRELAND LTD; CLARE Publicador: ELSEVIER IRELAND LTD; CLARE
Tipo: Artigo de Revista Científica
ENG
Relevância na Pesquisa
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Forensic age estimation is an important element of anthropological research, as it produces one of the primary sources of data that researchers use to establish the identity of a person living or the identity of unknown bodily remains. The aim of this study was to determine if the chronology of third molar mineralization could be an accurate indicator of estimated age in a sample Brazilian population. If so, mineralization could determine the probability of an individual being 18 years or older. The study evaluated 407 panoramic radiographs of males and females from the past 5 years in order to assess the mineralization status of the mandibular third molars. The evaluation was carried out using an adaptation of Demirjian's system. The results indicated a strong correlation between chronological age and the mineralization of the mandibular third molars. The results indicated that modern Brazilian generation tends to demonstrate an earlier mandibular third molar mineralization than older Brazilian generation and people of other nationalities. Males reached developmental stages slightly earlier than females, but statistically significant differences between the sex were not found. The probability that an individual with third molar mineralization stage H had reached an age of 18 years or older was 96.8-98.6% for males and females...

Novos métodos para estimativa da idade óssea baseados no processamento de imagens radiográficas da mão; New methods to bone age estimation based on hand radiographic image processing

Olivete Júnior, Celso
Fonte: Biblioteca Digitais de Teses e Dissertações da USP Publicador: Biblioteca Digitais de Teses e Dissertações da USP
Tipo: Tese de Doutorado Formato: application/pdf
Publicado em 21/12/2009 PT
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A estimação da idade óssea (ou maturidade óssea) através da análise de radiografias da mão esquerda é um procedimento muito utilizado na área da radiologia pediátrica. Os métodos de estimativa da idade óssea utilizados atualmente apresentam alto grau de complexidade para a estimação, normalmente realizados por um radiologista, acarretando em um grande consumo de tempo e obtendo resultados com elevada carga de interpretação pessoal. O objetivo deste estudo é propor novas metodologias que operem de forma simplificada e automática, e que ofereçam informações isentas da subjetividade da análise humana para o acompanhamento do crescimento ósseo. São apresentadas novos métodos para estimar a idade óssea. Um deles baseia-se em medidas de áreas dos centros de ossificação. Outros analisam o crescimento e estimam a idade através da presença do número de ouro entre dimensões do metacarpo e falanges. Algumas estimam a idade óssea a partir de medidas de relação dimensional. Por fim, é apresentada uma metodologia que analisa o crescimento ósseo a partir das definições de relações propostas por \"Le Corbusier\". A amostra constitui-se de 631 imagens radiográficas da mão de pacientes com idade entre 6 e 16 anos. Os resultados foram analisados utilizando o teste T de Student. Para ambos os sexos foram encontradas altas correlações com os valores do laudo obtido com os três métodos clássicos. Os resultados mostram que as metodologias podem ser usadas como auxílio do diagnóstico médico.; Bone age (or skeletal maturity) assessment using a radiograph of the left hand is a common procedure in pediatric radiology. The methods most widely used for bone age determination presents high complexity degree for estimation...

Preliminary identification and quantification of the age-pigment lipofuscin in the brain of farfantepenaeus paulensis (crustacea: decapoda)

Peixoto, Silvio Ricardo Maurano; Garcia, Nieves Aguado; D'Incao, Fernando; Wasielesky Junior, Wilson Francisco Britto; Cousin, João Carlos Brahm
Fonte: Universidade Federal do Rio Grande Publicador: Universidade Federal do Rio Grande
Tipo: Artigo de Revista Científica
ENG
Relevância na Pesquisa
46.62308%
A preliminary study was done on the age-pigment lipofuscin content in the brains of captive Farfantepenaeus paulensis juveniles (5 months old) and wild adults (estimated age of 12-15 months). Random samples of 6 individuals were obtained from each group (juvenile and adult) for histological analysis. Serial sections (6 mm) of the brains were mounted without staining and observed in an epifluorescent microscope. The fluorescent images of the five most central sections of the olfactory lobe cell mass (OLCM) of each individual were digitized for image analysis. The lipofuscin granule mean diameter was similar in both groups (p > 0.05), however the lipofuscin area fraction (percentage of the OLCM occupied by pigment granules) was significantly higher (p < 0.05) in the adult shrimp. The detection of lipofuscin granules in 5 month old F. paulensis indicates that lipofuscin deposition probably takes place even earlier in the juvenile phase. Our results suggested that the amount of granules in the F. paulensis OLCM is related to age, but further studies are necessary to evaluate the relationship between lipofuscin content and the age of captive F. paulensis.; Foi realizada análise preliminar do conteúdo de lipofuscina em cérebros de juvenis de Farfantepenaeus paulensis oriundos de cativeiro (5 meses de idade) e de adultos selvagens (idade estimada de 12-15 meses). Foram coletadas amostras aleatórias de 6 indivíduos de cada grupo (juvenis e adultos) para análises histológicas. Cortes frontais (6 mm) dos cérebros foram montados em lâminas...

Age estimation of indian adults from orthopantomographs

Saxena,Sudhanshu
Fonte: Sociedade Brasileira de Pesquisa Odontológica - SBPqO Publicador: Sociedade Brasileira de Pesquisa Odontológica - SBPqO
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/06/2011 EN
Relevância na Pesquisa
47.04113%
The aim of this study was to develop a method for estimating the chronological age of Indian adults based on the relationship between age and various morphological variables of canine teeth, obtained using orthopantomographs. Orthopantomographs of 120 selected patients were digitized, and radiographic images of the right maxillary canine in each case were processed using a computer aided drafting program. Pulp/tooth area ratio, pulp/root length ratio, pulp/tooth length ratio, pulp/root width ratio at the cemento-enamel junction level, pulp/root width ratio at midroot level, and pulp/root width ratio at the midpoint between the cemento-enamel junction and the midroot of the canine were calculated by measuring various features on the images. Pearson's correlation, multiple linear regression, one way analysis of variance (ANOVA), and Student's t-test were used for statistical analysis. Regression equations were developed to estimate age from morphological variables. The observed minus the estimated age in the total study sample ranged from -2.2 to +1.5 years, in males from -0.9 to +0.8 years, while in females it was from -1 to +0.8 years. Differences between observed and estimated ages of subjects were not statistically significant. In conclusion there is a linear relationship of pulp/root width ratio at mid-root level and pulp/tooth area ratio of the right maxillary canine with chronological age in the Indian population. Age of subjects can therefore be estimated with a good degree of accuracy using regression equations.

Preliminary identification and quantification of the age-pigment lipofuscin in the brain of Farfantepenaeus paulensis (Crustacea: Decapoda)

Peixoto,S.; Aguado,N.; D'Incao,F.; Wasielesky,W.; Cousin,J. C.
Fonte: Instituto Internacional de Ecologia Publicador: Instituto Internacional de Ecologia
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/11/2002 EN
Relevância na Pesquisa
46.62308%
A preliminary study was done on the age-pigment lipofuscin content in the brains of captive Farfantepenaeus paulensis juveniles (5 months old) and wild adults (estimated age of 12-15 months). Random samples of 6 individuals were obtained from each group (juvenile and adult) for histological analysis. Serial sections (6 mum) of the brains were mounted without staining and observed in an epifluorescent microscope. The fluorescent images of the five most central sections of the olfactory lobe cell mass (OLCM) of each individual were digitized for image analysis. The lipofuscin granule mean diameter was similar in both groups (p > 0.05), however the lipofuscin area fraction (percentage of the OLCM occupied by pigment granules) was significantly higher (p < 0.05) in the adult shrimp. The detection of lipofuscin granules in 5 month old F. paulensis indicates that lipofuscin deposition probably takes place even earlier in the juvenile phase. Our results suggested that the amount of granules in the F. paulensis OLCM is related to age, but further studies are necessary to evaluate the relationship between lipofuscin content and the age of captive F. paulensis.

Dental maturity as an indicator of chronological age: radiographic assessment of dental age in a brazilian population

Kurita,Lucio Mitsuo; Menezes,Alynne Vieira; Casanova,Marcia Spinelli; Haiter-Neto,Francisco
Fonte: Faculdade De Odontologia De Bauru - USP Publicador: Faculdade De Odontologia De Bauru - USP
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/04/2007 EN
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OBJECTIVE: The purpose of this investigation was to evaluate the applicability of the methods proposed by Nolla and by Nicodemo and colleagues for assessing dental age and its correlation to chronological age. METHODS: Panoramic radiographs of 360 patients from the city of Fortaleza (CE, Brazil) aged 7-15 years were used to assess the associations between dental and chronological age. Data were submitted to statistical analysis using the BioEstat 2.0 (2000) software. Student-Neuman-Keuls test was performed and Pearson's correlation coefficients were calculated at 5% significance level. RESULTS: When the Nolla method was applied, the mean difference between true and estimated age for males and females was underestimated. The use of the method proposed by Nicodemo and colleagues also resulted in underestimation, although it was more evident in male subjects. The correlation coefficients between chronological age and estimated dental age were high, with mean values ranging between 0.87 and 0.91 for males and between 0.84 and 0.93 for females. CONCLUSION: Although both methods proved to be reliable in estimating age, the use of correction factors is recommended.

Dental maturity as an indicator of chronological age: radiographic assessment of dental age in a brazilian population

Kurita, Lucio Mitsuo; Menezes, Alynne Vieira; Casanova, Marcia Spinelli; Haiter-Neto, Francisco
Fonte: Universidade de São Paulo. Faculdade de Odontologia de Bauru Publicador: Universidade de São Paulo. Faculdade de Odontologia de Bauru
Tipo: info:eu-repo/semantics/article; info:eu-repo/semantics/publishedVersion; ; Formato: application/pdf
Publicado em 01/04/2007 ENG
Relevância na Pesquisa
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OBJECTIVE: The purpose of this investigation was to evaluate the applicability of the methods proposed by Nolla and by Nicodemo and colleagues for assessing dental age and its correlation to chronological age. METHODS: Panoramic radiographs of 360 patients from the city of Fortaleza (CE, Brazil) aged 7-15 years were used to assess the associations between dental and chronological age. Data were submitted to statistical analysis using the BioEstat 2.0 (2000) software. Student-Neuman-Keuls test was performed and Pearson's correlation coefficients were calculated at 5% significance level. RESULTS: When the Nolla method was applied, the mean difference between true and estimated age for males and females was underestimated. The use of the method proposed by Nicodemo and colleagues also resulted in underestimation, although it was more evident in male subjects. The correlation coefficients between chronological age and estimated dental age were high, with mean values ranging between 0.87 and 0.91 for males and between 0.84 and 0.93 for females. CONCLUSION: Although both methods proved to be reliable in estimating age, the use of correction factors is recommended.

Global, regional, and national age-sex specific all-cause and cause-specific mortality for 240 causes of death, 1990-2013: A systematic analysis for the Global Burden of Disease Study 2013

Lucas, Robyn; Banerjee, Amitava; Barquera, S; Blyth, Fiona; Cowie, Benjamin; Ding, Eric l; Gunnell, David; Lan, Qing; McGrath, John, J; Patton, George C; Woolf, Anthony
Fonte: Lancet Publishing Group Publicador: Lancet Publishing Group
Tipo: Artigo de Revista Científica
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Background Up-to-date evidence on levels and trends for age-sex-specific all-cause and cause-specific mortality is essential for the formation of global, regional, and national health policies. In the Global Burden of Disease Study 2013 (GBD 2013) we estimated yearly deaths for 188 countries between 1990, and 2013. We used the results to assess whether there is epidemiological convergence across countries. Methods We estimated age-sex-specific all-cause mortality using the GBD 2010 methods with some refinements to improve accuracy applied to an updated database of vital registration, survey, and census data. We generally estimated cause of death as in the GBD 2010. Key improvements included the addition of more recent vital registration data for 72 countries, an updated verbal autopsy literature review, two new and detailed data systems for China, and more detail for Mexico, UK, Turkey, and Russia. We improved statistical models for garbage code redistribution. We used six different modelling strategies across the 240 causes; cause of death ensemble modelling (CODEm) was the dominant strategy for causes with sufficient information. Trends for Alzheimer's disease and other dementias were informed by meta-regression of prevalence studies. For pathogen-specific causes of diarrhoea and lower respiratory infections we used a counterfactual approach. We computed two measures of convergence (inequality) across countries: the average relative difference across all pairs of countries (Gini coefficient) and the average absolute difference across countries. To summarise broad findings...

Utilização da Tabela de cronologia de mineralização dental de Nicodemo, Moraes e Médici Filho na estimativa da idade de paraibanos; The use of the Nicodemo, Moraes e Médici Filho Table of dental mineralization chronology to estimate the Paraibanos’ age

Moreno, Marina Barrêto Pereira; Pontes, Tércio José Pereira; Rabello, Patrícia Moreira
Fonte: Universidade de São Paulo. Faculdade de Medicina Publicador: Universidade de São Paulo. Faculdade de Medicina
Tipo: info:eu-repo/semantics/article; info:eu-repo/semantics/publishedVersion; ; ART.; Formato: application/pdf
Publicado em 05/06/2014 POR
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46.62308%
To verify the chronological age hit rate of young people using the Nicodemo, Moraes and Medici Filho table. Methods: The sample consisted of 94 panoramic radiographs images of individuals aged 10 to 25 years. The mineralization table described in NOLLA’s study was used according to the chronological table of permanent teeth mineralization in Brazil which was created by Nicodemo, Moraes and Medici Filho. The research method was transversal and blind. For the statistical analysis absolute and percentage distributions (Descriptive statistical techniques) were obtained and the chi-square test (inferential statistical techniques) was used. The significance level used in the statistical tests was 5%. Results: The hit percentage in the age group described was higher when only four teeth were analyzed by panoramic radiography (81.9%) compared to the method of Nolla (4.3%). The third molars had the highest percentage of correct answers (66%) and the hit percentage was higher among individuals aged 10-15 years (94.4%) than those who were older than 15 years (65%). Conclusion: The Nolla’s method modified by Nicodemo, Moraes and Medici Filho was not effective for the age group studied, and in these cases the observation of the 3rd molar mineralization...

Oldest estimated age for Sphyrna mokarran (Carcharhiniformes: Sphyrnidae) in the Mexican Pacific

Tovar-Ávila,Javier; Gallegos-Camacho,Rodney
Fonte: UAM, Unidad Iztapalapa, Publicador: UAM, Unidad Iztapalapa,
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/08/2014 EN
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The estimated age (around 45 years) from vertebral growth band counts for the largest Sphyrna mokarran caught in the Gulf of California and Central Mexican Pacific in the last decades, locates it as the oldest elasmobranch reported to date in Mexican Pacific waters. The specimen studied was a mature female of approximately 550 kg of total weight and 424 cm of total length, caught by artisanal fishermen using longlines south of the archipelago of Islas Marías on November 11th 2010. The distance between growth bands showed fast growth during the first 10 years. Growth bands after the age of 38 were only visible in the corpus calcareum, though difficult to separate and count. The age estimated in the present study was similar to the maximum age reported for the species in the Atlantic Ocean and Gulf of Mexico, confirming the species as long lived.