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1.
Entropy (Basel) ; 26(2)2024 Feb 06.
Artigo em Inglês | MEDLINE | ID: mdl-38392398

RESUMO

This research offers a solution to a highly recognized and controversial problem within the composite indicator literature: sub-indicators weighting. The research proposes a novel hybrid weighting method that maximizes the discriminating power of the composite indicator with objectively defined weights. It considers the experts' uncertainty concerning the conceptual importance of sub-indicators in the multidimensional phenomenon, setting maximum and minimum weights (constraints) in the optimization function. The hybrid weighting scheme, known as the SAW-Max-Entropy method, avoids attributing weights that are incompatible with the multidimensional phenomenon's theoretical framework. At the same time, it reduces the influence of assessment errors and judgment biases on composite indicator scores. The research results show that the SAW-Max-Entropy weighting scheme achieves greater discriminating power than weighting schemes based on the Entropy Index, Expert Opinion, and Equal Weights. The SAW-Max-Entropy method has high application potential due to the increasing use of composite indicators across diverse areas of knowledge. Additionally, the method represents a robust response to the challenge of constructing composite indicators with superior discriminating power.

2.
PLoS One ; 19(2): e0269515, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38394233

RESUMO

The pandemic caused millions of deaths around the world and forced governments to take drastic measures to reduce the spread of Coronavirus. Understanding the impact of social distancing measures on urban mobility and the number of COVID-19 cases allows governments to change public policies according to the evolution of the pandemic and plan ahead. Given the increasing rates of vaccination worldwide, immunization data may also represent an important predictor of COVID-19 cases. This study investigates the impact of urban mobility and vaccination upon COVID-19 cases in Belo Horizonte, Brazil using Prophet and ARIMA models to predict future outcomes. The developed models generated projections fairly close to real numbers, and some inferences were drawn through experimentation. Brazil became the epicenter of the COVID-19 epidemic shortly after the first case was officially registered on February 25th, 2020. In response, several municipalities adopted lockdown (total or partial) measures to minimize the risk of new infections. Here, we propose prediction models which take into account mobility and vaccination data to predict new COVID-19 cases.


Assuntos
COVID-19 , Humanos , COVID-19/epidemiologia , COVID-19/prevenção & controle , Brasil/epidemiologia , Controle de Doenças Transmissíveis , Pandemias/prevenção & controle , Distanciamento Físico
3.
Insects ; 14(7)2023 Jun 26.
Artigo em Inglês | MEDLINE | ID: mdl-37504588

RESUMO

The boll weevil, Anthonomus grandis grandis Boh., is the most important cotton pest in Central and South America. The biological characteristics and thermal requirements of boll weevils reared on an artificial diet were assessed at seven constant temperatures (18, 20, 22, 25, 28, 30, and 32 ± 1 °C) under laboratory conditions. These data were used to determine the ecological zoning for the pest in Brazil. The development time; oviposition period; the number of eggs produced; survival of eggs, larvae, and pupae; adult longevity; and sex ratio were recorded, and additional life table parameters were calculated. The total development duration ranged from 16.1 (32 °C) to 46.2 (18 °C) days. Temperature significantly affected the number of eggs laid per female (fecundity), with the highest number of eggs observed at 25 °C (251 ± 15.8). The parameters from the fertility life table indicated the greatest population growth at 25 °C and 28 °C. The net reproductive rate (R0) at these temperatures was 22.25 times higher than at 18 °C. Based on R0 and temperature, an ecological zoning of the pest was developed for Brazil. Brazilian regions with mean temperatures above 20 °C and below 30 °C are most favorable for the population growth of the boll weevil. The most suitable crop areas were found to be the north, midwest, and part of the northeast region, although the weevil can occur throughout Brazil if the host plants are available.

4.
Neotrop Entomol ; 52(4): 742-749, 2023 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-37369981

RESUMO

Tamarixia radiata (Waterston) is the main parasitoid wasp released in abandoned, organic, and non-commercial citrus groves and in orange jasmine areas  for biological control of Diaphorina citri Kuwayama (a vector of bacteria associated with huanglongbing), as a control tactic in a strategy termed External Management. The effectiveness of parasitism is influenced by the release density and radius of action of this parasitoid. This study determined the optimal release density and radius of action of T. radiata in a commercial citrus grove. Parasitoids were released at five densities (200, 400, 800, 1,600, and 3,200 wasps/ha) at the center of circular areas with four different radii (7.5, 15, 22.5, and 30 m). The parasitism rate was assessed using 'Valencia' sweet orange seedlings, each bearing 35 D. citri fourth-instar nymphs, attached to 26-year-old 'Valencia' sweet orange trees along the perimeter of each radius. For the 7.5-m radius, the highest parasitism rate (74.1%) was observed at the density of 3,200 wasps/ha. However, for the 15-m radius, the density of 3,200 wasps/ha resulted in lower parasitism (30.7%) of D. citri nymphs. No parasitism was observed for densities lower than 800 wasps/ha and release radii above 15 m. The highest parasitoid dispersal radius and area were 18.04 m and 114.02 m2, respectively, when 3,200 wasps were released. Therefore, 3,200 wasps/ha arranged at 56 equidistant release points (approximately 57 wasps/release point) is the recommended protocol for biological control of D. citri in citrus groves.


Assuntos
Citrus sinensis , Citrus , Hemípteros , Vespas , Animais , Rádio (Anatomia) , Controle Biológico de Vetores , Ninfa , Hemípteros/microbiologia
5.
Insects ; 14(5)2023 Apr 27.
Artigo em Inglês | MEDLINE | ID: mdl-37233047

RESUMO

In Brazil, the citrus fruit borer, Gymnandrosoma aurantianum Lima, 1927, is a serious pest in orange orchards, causing an annual loss of 80 million US dollars, and is managed with multiple insecticide applications, often 56 in a single season. On the other hand, the parasitoid wasp Trichogramma atopovirilia Oatman & Platner, 1983 has the potential for controlling G. aurantianum by attacking its eggs. Considering the intensive insecticide applications in citrus orchards in Brazil to control the large complex of pests, especially Diaphorina citri Kuwayama, 1908, evaluation of the harmful effects of insecticides on T. atopovirilia is important to maximize efficiency in managing G. aurantianum. Here, we tested the effects of new products used in citrus orchards (cyantraniliprole, cyantraniliprole + abamectin, abamectin, sulfoxaflor, spinetoram, flupyradifure, and Cordyceps fumosorosea (Wize) Kepler, B. Shrestha & Spatafora) on adults and pupae of T. atopovirilia. Of the insecticides tested, spinetoram caused the highest impacts on T. atopovirilia parasitism, longevity, emergence, and mortality. The other products caused more sublethal than lethal effects and were classified as 1 and/or 2 in the IOBC/WPRS classification. Abamectin, cyantraniliprole, cyantraniliprole + abamectin, and the entomopathogenic fungus C. fumosorosea were classified as short-lived. Except for spinetoram, these products were classified as selective. In this study, spinetoram was considered harmful to T. atopovirilia and, therefore, should be managed carefully in IPM programs combining this parasitoid. In order to safely use this insecticide, one should respect the interval of release of the parasitoid, which is 21 days after its spraying. The novel products tested, cyantraniliprole, cyantraniliprole + abamectin, abamectin, sulfoxaflor, and the entomopathogenic fungi C. fumosorosea were selective and non-persistent to T. atopovirilia. These products are possible replacements for non-selective insecticides to achieve higher control from both chemical and biological tools.

6.
Neotrop Entomol ; 50(1): 114-120, 2021 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-33502718

RESUMO

In order to control the spread of the huanglongbing (HLB) disease in citrus plants, one of the main approaches is management of its vector, the Asian citrus psyllid, Diaphorina citri Kuwayama. The intensive use of chemicals to control the psyllid has caused concern due to the damage to the environment and human health, and biological control has been a more sustainable and environmentally safe strategy. For D. citri, the parasitoid wasp Tamarixia radiata Waterston has been used successfully in the state of São Paulo, Brazil, reducing populations of D. citri nymphs by up 80% in some municipalities. Mass rearing of wasps is required to provide efficient control, which implies that quality control is required, especially in storage and transportation. In most cases, the insects are not used on the same day of emergence, which makes it necessary to develop strategies to delay development without negatively affecting the wasps. Here, we evaluated the survival of T. radiata adults over eight different exposure times (2, 4, 6, 8, 10, 12, 14, and 16 days) in three different temperatures (7, 9, and 11°C). After these periods, they were transferred to climate chambers at 25°C and their survival curves over 30 days were analyzed. We concluded that adults can be maintained at 9°C for up to 6 days without significant damage to their survival during and after the exposure period, functioning well for D. citri IPM implementation.


Assuntos
Hemípteros/parasitologia , Temperatura , Vespas/crescimento & desenvolvimento , Animais , Brasil , Citrus , Ninfa/parasitologia , Controle Biológico de Vetores
7.
Rev. Ciênc. Plur ; 1(3): 85-92, 2015. ilus
Artigo em Português | BBO - Odontologia | ID: biblio-855840

RESUMO

O presente trabalho descreve uma técnica simples, rápida e de baixo custo para confecção de próteses totaisconvencionais novas a partir da duplicação de próteses antigas, em uso pelo paciente. Os moldes obtidos pormeio da duplicação das próteses devem ser preenchidos com resina acrílica incolor. As réplicas das prótesesobtidas serão usadas para moldagem funcional com poliéter, estabilizadas com registro oclusal em resina acrílica.Os moldes devem ser vazados e montados em articulador semi-ajustável. Os dentes artificiais são posicionados com auxílio de um guia feito em silicona de condensação para reproduzir o posicionamento dos dentes da prótese antiga e fixados com cera 7. Após aprovação dos dentes na prova dos dentes em cera, sem necessidade de ajuste dos planos de orientação, as próteses poderão ser acrilizadas e após o ajuste oclusal no articulador as mesmas poderão ser instaladas


This study presents a simple, fast and low cost technique for fabrication new conventional dentures from theduplication of old prosthesis in use by the patient. Colorless acrylic resin was poured into the moulds obtained byduplication of prosthesis. With the replicas obtained a functional impressions using polyether should be performed and they are stabilized with occlusal registration in acrylic resin. The molds need to be castings and mounted on an semi-adjustable articulator. The artificial teeth are positioned with the assistance of a guide made condensation silicone to reproduce the positioning of the teeth of the old prosthesis and fixed with wax 7. After approval of the teeth on the trial in wax, without adjustment of the planes, the prosthesis may be processed in the laboratory. After occlusal adjustment in the articulator the same can be installed


Assuntos
Humanos , Técnica de Moldagem Odontológica , Arcada Edêntula , Prótese Total , Resinas Acrílicas/química , Brasil
8.
Texto & contexto enferm ; 24(1): 112-120, Jan-Mar/2015.
Artigo em Inglês | BDENF - Enfermagem, LILACS | ID: lil-744792

RESUMO

The study aimed to understand how to conform the Support Matrix and Individual Therapeutic Project and its relation with the production of mental health care. This is qualitative research conducted in Fortaleza-CE, Center for Psychosocial Care and Center for Family Health. 17 people participated, between professionals and patients. It was used as for dates collecting semi-structured and systematic observation. The findings were analyzed by narrative analysis, grounded theory by Ricoeur. The results reveal themselves excessive referrals, medical-centered, dependence Health Center to support the specialized care, deficiency of physical space, network disconnection, outsourcing and professional unpreparedness of the Health Center as the production difficulties of care. The Support Matrix and Individual Therapeutic Project therefore happen in everyday services, but with difficulties that affect the organization and production of care.


La investigación objetivó comprender el Apoyo Matricial y Plan Terapéutico Singular y su relación con la producción del cuidado en salud mental. Se trata de investigación cualitativa, en la ciudad de Fortaleza-CE, Centro de Atención Psicosocial y el Centro de Salud de la Familia. 17 sujetos participaron, profesionales y usuarios. Se utilizó como técnica a la entrevista semiestructurada y observación sistemática. Los datos se analizaron por análisis de narrativas, basada en la teoría de Ricoeur. Los resultados revelaron remisiones excesivas, atención centrada en médico, dependencia del Centro de Salud al apoyo de la atención especializada, desconexión de la red, vínculos de empleo frágil y falta de preparo de los profesionales del CSF como dificultades a la producción del cuidado. El Apoyo Matricial y el Plan Terapéutico Singular ocurren en el cotidiano de los servicios con dificultades que afectan a la organización y producción del cuidado.


O estudo objetivou compreender como se conformam o apoio matricial, projeto terapêutico singular, e sua interface com a produção do cuidado em saúde mental. Trata-se de uma investigação qualitativa, realizada em Fortaleza-CE, no Centro de Atenção Psicossocial e no Centro de Saúde da Família. Participaram 17 sujeitos, entre profissionais e usuários. Utilizou-se a entrevista semiestruturada e a observação sistemática. A análise envolveu compreensão de narrativas, embasada pela teoria de Ricoeur. Os resultados evidenciaram o acolhimento, o vínculo e a corresponsabilização no cotidiano assistencial, promovendo cuidado. Desvelaram-se, contudo, excessivos encaminhamentos, atendimento médico-centrado, dependência do Centro de Saúde ao suporte da atenção especializada, deficiência de espaço físico, desarticulação da rede, terceirização e despreparo dos profissionais do Centro de Saúde, como dificuldades com a produção do cuidado. O apoio matricial e o projeto terapêutico singular, portanto, acontecem no cotidiano dos serviços, porém com dificuldades que incidem na organização e produção do cuidado.


Assuntos
Humanos , Atenção Primária à Saúde , Saúde Mental , Serviços de Saúde Mental
9.
Mater Sci Eng C Mater Biol Appl ; 38: 79-84, 2014 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-24656355

RESUMO

The purpose of this work was to evaluate the interaction of different layering porcelains with zirconia via shear bond strength test and microscopy. Four different groups of dental veneering porcelains (VM9, Zirkonzanh, Ceramco, IPS) were fused onto forty zirconia-based cylindrical substrates (8mm in diameter and 12 mm in height) (n=10), according to the manufacturer's recommendations. Additionally, layered dental porcelain (D-sign, Ivoclar) was fired on ten Ni-Cr cylindrical substrates Shear bond strength tests of the veneering porcelain to zirconia or Ni-Cr were carried out at a crosshead speed of 0.5mm/min. After the shear bond tests, the interfaces were analyzed by scanning electron microscopy (SEM). The fracture type exhibited by the different systems was also assessed. The results were statistically analyzed by ANOVA at a significant level of p<.05. The shear bond strength values of the porcelain-to-NiCr interfaces (25.3±7.1 MPa) were significantly higher than those recorded for the following porcelain-to-zirconia systems: Zirkonzanh (18.8±1 MPa), Ceramco (18.2±4.7 MPa), and IPS (16±4.5 MPa). However, no significant differences were found in the shear bond strength values between the porcelain-to-NiCr and porcelain (VM9)-to-zirconia (23.2±5.1 MPa) groups (p>.05). All-ceramic interfaces revealed mixed failure type, cohesive in the porcelain and adhesive at the interface. This study demonstrated that all-ceramic systems do not attain yet the same bond strength standards equivalent to metal-ceramic systems. Therefore, despite the esthetic appeal of all-ceramic restorations, the adhesion between the porcelain and zirconia framework is still an issue considering the long term success of the restoration.


Assuntos
Porcelana Dentária/química , Facetas Dentárias , Resistência ao Cisalhamento , Estresse Mecânico , Análise de Variância , Teste de Materiais , Microscopia Eletrônica de Varredura , Aço Inoxidável/química , Temperatura , Zircônio
10.
Rev. bras. estud. popul ; 30(supl): S171-S191, 2013. mapas
Artigo em Português | LILACS | ID: lil-701394

RESUMO

Este artigo analisa a distribuição espacial e temporal dos homicídios no Brasil a partir dos anos 1980, quando se verifica forte incremento nas taxas de homicídios, bem como sua evolução nas três décadas seguintes, 1990, 2000 e 2010, quando ocorrem processos distintos, tais como: queda, crescimento e estabilização nas diferentes regiões do país. A fonte principal dessa primeira parte são as seguidas edições do Mapa da violência (WAISELFISZ, 1998, 2004, 2006, 2007, 2008, 2010, 2011). Além da análise da distribuição espacial e temporal, o artigo aborda a tese da interiorização difundida por esses estudos. Em seguida, a partir de um período mais concentrado (1999 a 2006), é realizada a análise geográfica dos homicídios no Brasil no contexto de suas macrorregiões, explorando e qualificando os fenômenos da "interiorização" e "disseminação da violência". Para tanto, são utilizados os registros de homicídios do Sistema de Informações sobre Mortalidade do Ministério da Saúde para a produção de taxas de risco e mapeamento coroplético no plano municipal. A tese mais geral é de que a reorganização da violência no território nacional estudada pelos registros dos homicídios revela um processo complexo que vai além do que se convencionou a chamar de interiorização da violência. Há uma reorganização que obedece a algumas lógicas de aglomeração, com presença de claros efeitos de contágio e formação de clusters de homicídios em áreas que, nos últimos anos, apresentaram algum dinamismo econômico ou reorganização do espaço em virtude de mudanças em suas formas de usos e funções.


This paper analyzes the spatial and temporal distributions of homicides in Brazil since the 1980s, when a sharp increase in death rates occurred. It also analyzes the evolution of homicides during the three following decades (1990s, 2000s and 2010s), when distinct processes took place, such as population reduction, stabilization and growth in different regions of the country. The main source of data for the first part of the paper consisted of various editions of "Mapa da Violência" (Map of Violence) by WAISELFISZ (1998, 2004, 2006, 2007, 2008, 2010, and 2011). Besides analyzing the spatial and temporal distribution of homicides, we will examine the widespread thesis of internalization, disseminated by these studies. Then, based only on the period of 1999 to 2006, the paper includes a geographical analysis of homicides in Brazil by geographical macro-region, exploring and describing the phenomena of "internalization" and the "spread of violence." To do so we will use homicide records published by SVS/MS in order to produce risk rates and coropleth mapping at the municipal level. This article’s main thesis is that the reorganization of violence in Brazil based on homicide records reveals a complex process that goes beyond what is conventionally called the "internalization of violence." There is a reorganization that follows the logic of agglomeration, with the clear presence of effects of contagion and the formation of clusters of homicides in areas that, in recent years, experienced economic dynamism or the reorganization of their spaces due to changes in land-use and functions.


Este artículo analiza la distribución espacial y temporal de los homicidios en Brasil desde los años 1980, cuando se verifica un fuerte incremento en las tasas de homicidios, así como su evolución en las tres décadas siguientes, 1990, 2000 y 2010, cuando ocurren procesos distintos, tales como: reducción, crecimiento y estabilización en las diferentes regiones del país. La principal fuente de esa primera parte son las seguidas ediciones del Mapa da violência (WAISELFISZ, 1998, 2004, 2006, 2007, 2008, 2010, 2011). Además del análisis de la distribución espacial y temporal, el artículo aborda la tesis de la interiorización difundida por estos estudios. En seguida, a partir de un periodo más concentrado (1999 a 2006), se lleva a cabo el análisis geográfico de los homicidios en Brasil en el marco de sus macroregiones, explorando y calificando los fenómenos de la "interiorización" y "diseminación de la violencia". Para ello se utilizan los registros de homicidios del SIM/MS para la producción de tasas de riesgo y mapeo coroplético en el ámbito municipal. La tesis más general es que la reorganización de la violencia en el territorio nacional estudiada por los registros de los homicidios revela un proceso complejo que va más allá de lo que se acordó llamar de interiorización de la violencia. Hay una reorganización que obedece a algunas lógicas de aglomeración, con la presencia de claros efectos de contagio y formación de clusters de homicidios en áreas que, en los últimos años, presentaron algún dinamismo económico o la reorganización del espacio en virtud de cambios en sus formas de usos y funciones.


Assuntos
Humanos , Homicídio/estatística & dados numéricos , Crescimento Demográfico , Brasil , Aglomeração , Mapa de Risco , Violência
11.
Braz. j. oral sci ; 11(1): 19-24, jan.-mar. 2012. ilus
Artigo em Inglês | LILACS, BBO - Odontologia | ID: lil-638397

RESUMO

Aim: To investigate the construction of cobalt-chromium removable partial dentures by commercialprivate dental laboratories. Methods: Ninety master casts for fabrication of cobalt-chromiumremovable partial dentures were obtained from three commercial laboratories randomly selected.Casts were assessed for dental arch treated, Kennedy classification, cast surveying, denturedesign information provided by the dentist, and mouth preparation (rest seat, guiding plane andretentive area). Dental technicians answered a questionnaire regarding qualification of assisteddentists, monthly number of framework castings, and use of dental surveyor. Mouth preparationwas compared among laboratories using Kruskal-Wallis test (α=0.05). Results: The percentageof Kennedy class I was 16%, class II 19%, class III 56%, and class IV 9%. The majority ofmaster cats (51%) examined was sent to dental laboratories without any design information anddid not comply with ethical guidelines in the provision of RPD. Approximately half of the castswere considered “inappropriate” for guiding planes and retentive areas. One of the laboratoriespresented all casts “inappropriate” for rest seat distribution (p<0.001). Conclusions: Mouthpreparation frequently failed for guiding planes, retentive areas and distribution of rest seats. It isnecessary to provide students with adequate clinical experience at the dental school environment,which will actually be carried into the practice of dentistry.


Assuntos
Técnicos em Prótese Dentária , Planejamento de Dentadura
13.
Int J Paediatr Dent ; 20(6): 419-25, 2010 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-20642474

RESUMO

AIM: To compare the survival rates of Class II Atraumatic Restorative Treatment (ART) restorations placed in primary molars using cotton rolls or rubber dam as isolation methods. METHODS: A total of 232 children, 6-7 years old, both genders, were selected having one primary molar with proximal dentine lesion. The children were randomly assigned into two groups: control group with Class II ART restoration made using cotton rolls and experimental group using rubber dam. The restorations were evaluated by eight calibrated evaluators (Kappa > 0.8) after 6, 12, 18 and 24 months. RESULTS: A total of 48 (20.7%) children were considered dropout, after 24 months. The cumulative survival rate after 6, 12, 18 and 24 months was 61.4%, 39.0%, 29.1% and 18.0%, respectively for the control group, and 64.1%, 55.1%, 40.1% and 32.1%, respectively for the rubber dam group. The log rank test for censored data showed no statistical significant difference between the groups (P = 0.07). The univariate Cox Regression showed no statistical significant difference after adjusting for independent variables (P > 0.05). CONCLUSION: Both groups had similar survival rates, and after 2 years, the use of rubber dam does not increase the success of Class II ART restorations significantly.


Assuntos
Tratamento Dentário Restaurador sem Trauma/métodos , Assistência Odontológica para Crianças/métodos , Cárie Dentária/terapia , Preparo da Cavidade Dentária/métodos , Restauração Dentária Permanente/métodos , Criança , Fibra de Algodão , Adaptação Marginal Dentária , Falha de Restauração Dentária , Feminino , Seguimentos , Humanos , Masculino , Dente Molar , Diques de Borracha , Saliva , Estatísticas não Paramétricas , Análise de Sobrevida , Dente Decíduo , Resultado do Tratamento
14.
Rev. bras. ciênc. saúde ; 13(1): 71-76, 2009. ilus
Artigo em Português | LILACS | ID: lil-561041

RESUMO

O objetivo desse trabalho é relatar um caso clínico de recobrimento gengival utilizando retalho deslocado lateral associado a enxerto de conjuntivo para recobrimento de recessão gengival classe III de Miller. Relatou-se o caso de um paciente, gênero masculino, 45 anos, com Periodontite Crônica Grave localizada, escovação e oclusão traumáticas na região do elemento 41, apresentando retração classe III de Miller, ultrapassando a linha muco gengival, próximo ao ápice radicular, giroversão, extrusão e perda óssea interproximal. Inicialmente, foram realizados procedimentos básicos periodontais. No procedimento cirúrgico, utilizou-se retalho deslocado lateral associado a enxerto de conjuntivo, aplainamento radicular com brocas diamantadas Perioset®, raspagem e alisamento radicular com curetas gracey 5-6, e cloridrato de tetraciclina (125mg/ml) por 3 minutos. Utilizou-se suturas reabsorvíveis para fixação do enxerto ao periósteo e suturas externas com fio seda 4.0. Após a cirurgia, realizou-se o ajuste oclusal. Foi obtido aproximadamente 80% de recobrimento da recessão gengival com o emprego da referida técnica, aliado a uma diminuição significativa da profundidade e sangramento à sondagem e mobilidade, compatível com saúde clínica periodontal. Conclui-se que apesar da baixa previsibilidade dos resultados cirúrgicos para a terapêutica proposta, obtive-se um recobrimento radicular satisfatório.


Assuntos
Humanos , Masculino , Pessoa de Meia-Idade , Retração Gengival/cirurgia , Retalhos Cirúrgicos , Tecido Conjuntivo/cirurgia , Tecido Conjuntivo/transplante , Periodontite
15.
Neotrop Entomol ; 35(4): 489-92, 2006.
Artigo em Inglês | MEDLINE | ID: mdl-17061797

RESUMO

Several species of Orius Wolff are used in biological control of thrips in protected cultivations in temperate regions, but some of them show reproductive diapause, compromising the efficiency of these agents of biological control. There are no reports on the biology of the neotropical species Orius thyestes Herring under different environmental conditions. The purpose of this work was to investigate the influence of photoperiod on reproduction and longevity of this predator. Nymphs were kept in petri dishes in climatic chambers at 28+/-1 degree C, 70+/-10% RH and under the photoperiods of 12L:12D, 11L:13D, 10 L:14D e 09L:15D. The mating adults were kept in petri dishes with Bidens pilosa L. Asteraceae inflorescences as oviposition substracts and eggs of Anagasta kuehniella (Zeller) (Lepidoptera: Pyralidae) as food. The pre-oviposition and oviposition periods, fecundity and longevity were evaluated and O. thyestes did not show reprodutive diapause in all photoperiod conditions established. The mean number of eggs obtained per female decreased with the reduction of the photophase, with a difference (P < 0.05) between the values obtained in 12h and 9h of photophase. Longevity of females and males under 9h photophase was shorter (P < 0.05) than in all other photoperiods tested. The knowledge of the biology of the natural enemy under different conditions allows to optimise the mass rearing and to predict the performance of the predator in different photoperiods which may occur along the year and in greenhouses.


Assuntos
Hemípteros/fisiologia , Longevidade , Fotoperíodo , Animais , Reprodução
16.
Neotrop. entomol ; 35(4): 489-492, July-Aug. 2006. tab
Artigo em Inglês | LILACS | ID: lil-451247

RESUMO

Several species of Orius Wolff are used in biological control of thrips in protected cultivations in temperate regions, but some of them show reproductive diapause, compromising the efficiency of these agents of biological control. There are no reports on the biology of the neotropical species Orius thyestes Herring under different environmental conditions. The purpose of this work was to investigate the influence of photoperiod on reproduction and longevity of this predator. Nymphs were kept in petri dishes in climatic chambers at 28 ± 1°C, 70 ± 10 percent RH and under the photoperiods of 12L:12D, 11L:13D, 10L:14D e 09L:15D. The mating adults were kept in petri dishes with Bidens pilosa L. Asteraceae inflorescences as oviposition substracts and eggs of Anagasta kuehniella (Zeller) (Lepidoptera: Pyralidae) as food. The pre-oviposition and oviposition periods, fecundity and longevity were evaluated and O. thyestes did not show reprodutive diapause in all photoperiod conditions established. The mean number of eggs obtained per female decreased with the reduction of the photophase, with a difference (P < 0.05) between the values obtained in 12h and 9h of photophase. Longevity of females and males under 9h photophase was shorter (P < 0.05) than in all other photoperiods tested. The knowledge of the biology of the natural enemy under different conditions allows to optimise the mass rearing and to predict the performance of the predator in different photoperiods which may occur along the year and in greenhouses.


Várias espécies de Orius Wolff são utilizadas no controle biológico de tripes em cultivos protegidos em regiões temperadas, entretanto algumas delas apresentam diapausa reprodutiva, comprometendo a atuação desses agentes de controle biológico. Não existem relatos sobre a biologia da espécie neotropical Orius thyestes Herring em diferentes condições ambientais. Este trabalho objetivou verificar a influência do fotoperíodo na reprodução e longevidade desse predador. Ninfas foram individualizadas em placas de Petri e mantidas em câmaras climatizadas a 28 ± 1°C, UR de 70 ± 10 por cento e nos fotoperíodos de 12L:12E, 11L:13E, 10L:14E e 09L:15E. Os adultos foram acasalados em placas de Petri contendo inflorescência de Bidens pilosa L. Asteraceae como substrato de oviposição e ovos de Anagasta kuehniella (Zeller) (Lepidoptera: Pyralidae) como alimento. Foram avaliados os períodos de pré-oviposição e oviposição, fecundidade e longevidade de fêmeas e machos. Em nenhuma das condições de fotoperíodos avaliadas O. thyestes apresentou diapausa reprodutiva. O número médio de ovos por fêmea diminuiu proporcionalmente ao número de horas de luz, com diferença (P < 0,05) entre os valores obtidos em 12h e 9h de luz. A longevidade de fêmeas e machos do predador sob fotofase de 9h foi menor (P < 0,05) que as longevidades observadas nos demais fotoperíodos testados. O conhecimento sobre a biologia do inimigo natural em diferentes condições permite otimizar a criação massal e prever o desempenho do predador em diferentes fotoperíodos que podem ocorrer ao longo do ano e no interior das casas de vegetação.


Assuntos
Animais , Hemípteros/fisiologia , Longevidade , Fotoperíodo , Reprodução
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