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Development, survival and description of the life stages of Zatrephina lineata (Coleoptera: Chrysomelidae) fed on Ipomoea pes-caprae leaves Development Coleoptera (Coleoptera Chrysomelidae pescaprae pes caprae
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Silva, C. A. D.

; Camelo, S. F.

; Galdino, J. S.

; Carvalho, T. S.

; Zanuncio, J. C.

Brazilian Journal of Biology

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2024, Volume 84 elocation e278187

Abstract: En Pt | Text: En Pt | PDF: En | PDF: Pt

Abstract Zatrephina lineata (Coleoptera: Chrysomelidae) is a phytophagous insect, mainly of plants of the genera Ipomoea and Mikania. The objective was to study the development, survival and to describe the life stages of Z. lineata fed on leaves of Ipomoea pes-caprae. Biological observations were made daily with the aid of a stereoscopic microscope and the instars of this insect identified by the exuvia left between one moulting and the next. The duration of development and survival of the egg, larva and pupa stages and the first, second, third, fourth and fifth instars and of the nymph stage of Z. lineata differed, but not between sexes of this insect. The duration of development of Z. lineata was longer in the larval stage and in the fifth instar, and its survival greater in the egg and pupa stages and in the first and fifth instars. Zatrephina lineata eggs, cream-colored, are ellipsoid and deposited in groups on the adaxial surface of older I. pes-caprae leaves. The larvae of this insect go through five instars, with the first three being gregarious with chemo-behavioral defenses. The exarated pupae of Z. lineata, light yellow in color and with an oval shape flattened dorsoventrally, attach to the abaxial surface of the I. pes-caprae leaves. The shape of adults of this insect is oval, straw yellow in color with lighter longitudinal stripes and females are slightly larger than males. Coleoptera (Coleoptera Chrysomelidae Mikania Z pescaprae. pescaprae pes caprae. caprae next second third differed instar eggs creamcolored, creamcolored cream colored, colored cream-colored I chemobehavioral chemo behavioral defenses dorsoventrally males

Resumo Zatrephina lineata (Fabricius, 1787) (Coleoptera: Chrysomelidae) é um inseto fitófago, principalmente de plantas dos gêneros Ipomoea e Mikania. O objetivo foi estudar o desenvolvimento, a sobrevivência e descrever as fases de vida de Z. lineata alimentada com folhas de Ipomoea pes-caprae. Observações biológicas foram feitas diariamente com auxílio de microscópio estereoscópico e os ínstares desse inseto identificados pela exúvia deixada entre uma muda e outra. A duração do desenvolvimento e sobrevivência dos estágios de ovo, larva e pupa e dos primeiro, segundo, terceiro, quarto e quinto ínstares e do periodo ninfal de Z. lineata diferiu, mas não entre os sexos deste inseto. A duração do desenvolvimento de Z. lineata foi maior na fase larval e no quinto ínstar, e sua sobrevivência maior nas fases de ovo e pupa e no primeiro e quinto ínstares. Os ovos de Z. lineata, de cor creme, são elipsoides e depositados em grupos na superfície adaxial das folhas mais velhas de I. pes-caprae. As larvas desse inseto passam por cinco ínstares, sendo os três primeiros gregários com defesas quimio-comportamentais. As pupas exaradas de Z. lineata, de cor amarelo claro e formato oval achatado dorsoventralmente, fixam-se na superfície abaxial das folhas de I. pes-caprae. O formato dos adultos deste inseto é oval, de cor amarelo palha com listras longitudinais mais claras e as fêmeas são ligeiramente maiores que os machos. Fabricius, Fabricius (Fabricius 1787 Coleoptera (Coleoptera Chrysomelidae fitófago Mikania Z pescaprae. pescaprae pes caprae. caprae pes-caprae outra segundo terceiro diferiu ínstar creme I quimiocomportamentais. quimiocomportamentais quimio comportamentais. comportamentais quimio-comportamentais dorsoventralmente fixamse fixam se machos 178 17 1

https://doi.org/10.1590/1519-6984.278187

Occurrence of intersexuality in Mugil curema from an estuary of the North coast of Santa Catarina, Brazil - case report Catarina
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Boeing, M.

; Murasaki, J.

; Carvalho, T. F.

; Silva, L.A.

; Santos, R.L.

; Gueretz, J.S.

Arquivo Brasileiro de Medicina Veterinária e Zootecnia

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2023, Volume 75 N. 1 Pages 117 - 121

Abstract: En Pt | Text: En Pt | PDF: En | PDF: Pt

ABSTRACT This study describes the occurrence of reproductive changes in a mullet (Mugil curema) from the Babibtonga Bay, Santa Catarina. Gross and microscopic findings indicated changes in the reproductive system that were characterized by the presence of both male and female gonads, nearing sexual maturity, which was compatible with the diagnosis of intersex. It was not possible to identify predisposing factors that may have contributed to the development of this condition. However, as this species of fish may have their reproductive development affected by anthropogenic influence, it is important to permanently monitor this kind of environment. Considering the number of fish belonging to this species that was examined (n=433), the estimated prevalence for intersexuality was 0.23% (confidence interval: 0.00 to 0.68%, with confidence level of 95%). The findings in this study support the diagnosis of intersexuality in M. curema from the Babitonga Bay, which is the first documented case of this condition in this species on the coast of Santa Catarina, Brazil. Mugil Bay Catarina gonads maturity intersex However influence environment n=433, n433 n n=433 , 433 (n=433) 023 0 23 0.23 interval 000 00 0.0 068 68 0.68% 95%. 95 95% . 95%) M Brazil n43 n=43 43 (n=433 02 2 0.2 0. 06 6 0.68 9 n4 n=4 4 (n=43 0.6 n= (n=4 (n= (n

RESUMO Este estudo descreve a ocorrência de alteração reprodutiva em peixe da espécie Mugil curema, procedente da Baía da Babitonga, Santa Catarina. Macro e microscopicamente, foi identificada alteração no sistema reprodutivo, caracterizada pela presença de gônadas masculina e feminina, próximas da maturidade sexual, caracterizando um caso de intersexo. Não foi possível determinar os fatores que possam ter contribuído para o desenvolvimento dessa alteração reprodutiva, porém, como a espécie animal pode ter suas características de vida e reprodutiva influenciadas pela ação antrópica, é importante um estudo contínuo desses peixes nesse ambiente. Considerando o número de peixes dessa espécie que foram examinados (n=433), a prevalência estimada de intersexualidade foi de 0,23% (intervalo de confiança: 0,00 a 0,68%, com nível de confiança de 95%). Os achados deste estudo suportam o diagnóstico de intersexualidade em M. curema proveniente da Baía da Babitonga, sendo o primeiro caso documentado dessa condição nessa espécie na costa de Santa Catarina, Brasil. Babitonga Catarina microscopicamente reprodutivo feminina sexual intersexo porém antrópica ambiente n=433, n433 n n=433 , 433 (n=433) 023 0 23 0,23 intervalo 000 00 0,0 068 68 0,68% 95%. 95 95% . 95%) M Brasil n43 n=43 43 (n=433 02 2 0,2 0, 06 6 0,68 9 n4 n=4 4 (n=43 0,6 n= (n=4 (n= (n

https://doi.org/10.1590/1678-4162-12669

Simple and fast process using hydrochloric acid for producing synthetic zinc-rich stevensite
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Carvalho, T. C.

; Michel, B. B,

; Silva-Valenzuela, M. G.

; Hildebrando, E.

; Neves, R. F.

; Valenzuela-Diaz, F. R.

Cerâmica

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sep 2022, Volume 68 N. 387 Pages 285 - 293

Abstract: En | Text: En | PDF: En

Abstract In the last decades, clays have been used in sectors such as health and cosmetics. This requires products that are increasingly pure and present homogeneous properties, hardly found in natural clays. The use of synthetic clays can be a solution. For this, it is necessary to explore techniques for their production. The main focus of this study was to synthesize a smectite clay in a simple, fast and economic way at low temperature and pressure, called static and dynamic methods. To regulate the pH of the reaction and bring it closer to the ideal synthesis conditions, two different acids were used: nitric acid (the most widely used in the literature) and hydrochloric acid (more accessible and cheaper). The results showed characteristics of uniform crystalline material with a porous structure similar to that of the smectite group. Small particle sizes of approximately 100 nm were observed by scanning electron microscopy. Stevensite clay was obtained by both synthesis methods using two different acids; the static method with hydrochloric acid stood out. The greater practicality in its development provides a more viable option for large-scale industrial production.

https://doi.org/10.1590/0366-69132022683873262

A Mathematical Model on the Immune System Role in Achieving Better Outcomes of Cancer Chemotherapy
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GIL, W.F.F.M.

; CARVALHO, T.

; MANCERA, P.F.A.

; RODRIGUES, D.S.

TEMA (São Carlos)

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aug 2019, Volume 20 N. 2 Pages 343 - 357

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO A incidência de doenças neoplásicas mostra que a busca por tratamentos mais eficazes contra o câncer ainda é necessária. Além dos tratamentos padrão, como quimioterapia e radioterapia, novas modalidades de tratamento têm sido focadas nos recentes avanços na imunologia. Como pouco tem sido discutido sobre as implicações biológicas da quimioterapia em relação ao seu impacto tanto no sistema imunológico como em outras células normais e “saudáveis”, dedicamos o presente trabalho de modelagem matemática a fazê-lo. Primeiro, provamos a invariância da região na qual todas as variáveis de estado permanecem positivas (ou seja, o número de células cancerosas, células normais e células imunes, e também a quantidade de quimioterapia). Em seguida, analisamos o modelo em termos de estabilidade linear do sistema e estabelecemos uma condição necessária e suficiente para a estabilidade local do ponto de equilíbrio de cura. Além disso, simulamos alguns cenários envolvendo tanto o sistema imunológico quanto a quimioterapia, mostrando que uma estratégia de tratamento razoável ocorre quando estes são combinados adequadamente.

ABSTRACT The incidence of neoplastic diseases shows that the search for more effective cancer treatments is still necessary. In addition to standard treatments such as chemo- and radiotherapy, new treatment modalities have been focused in recent advances in immunology. Since little has been discussed about the biological implications of chemotherapy with respect to its impact on the immune system and on the other normal, “healthy” cells, we devote the present mathematical modeling work to do so. First, we prove the invariance of the region where all state variables remain positive (i.e., the number of cancer cells, normal cells and immune cells, and also the amount of chemotherapy). Afterward, we analyze the model in terms of the linear stability of the system and establish a necessary and sufficient condition for the local stability of the cure equilibrium point. Moreover, we simulate some scenarios involving both the immune system and chemotherapy, showing that a reasonable treatment strategy occurs when these are combined suitably.

https://doi.org/10.5540/tema.2019.020.02.0343 1175 downloads

Biology of Corythucha gossypii Fabricius, 1794 (Hemiptera: Tingidae) in Ricinus communis at different temperatures and thermal requirements
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Oliveira, S. R.

; Silva, C. A. D.

; Carvalho, T. S.

; Costa, L. A. A.

Brazilian Journal of Biology

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apr 2019, Volume 79 N. 2 Pages 278 - 285

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Resumo Estudamos a biologia de Corythucha gossypii em Ricinus communis sob diferentes temperaturas em câmaras climatizadas ajustadas as temperaturas de 20, 23, 25 e 28 °C, umidade relativa de 60 ± 10% e fotoperíodo de 12 horas. O período de desenvolvimento e a viabilidade dos ovos, o período de desenvolvimento e a taxa de sobrevivência de ninfas e do ciclo de ovo-adulto de C. gossypii, bem como a longevidade dos adultos e fecundidade foram estimados. As exigências térmicas (K) e as temperaturas-bases (Tb) foram estimadas para cada um dos estádios imaturos e para o ciclo de ovo-adulto. A duração das fases de ovos e ninfas e do ciclo de ovo a adulto de C. gossypii em folhas de mamona a 20-28 °C foram de 7,6-17 dias, 10,2-27,5 dias e 16,9-44,5 dias, respectivamente. A temperatura mais baixa inibiu a oviposição de C. gossypii , enquanto as temperaturas mais altas foram favoráveis ao seu desenvolvimento. Os municípios do estado da Bahia de Brumado, Irecê, Itaberaba, Jacobina e Senhor do Bonfim foram estimados para ter um alto potencial para o crescimento populacional de C. gossypii. No entanto, o maior número de gerações por ano de C. gossypii foi observado nos municípios de Brumado e Itaberaba.

Abstract We studied the biology of Corythucha gossypii in Ricinus communis under different temperatures in climatic chambers adjusted at 20, 23, 25, and 28 °C, 60 ± 10% relative humidity, and a 12-h photoperiod. The development period and viability of eggs, the development period and survival rate of nymphs, and egg-adult cycle of C. gossypii as well as the adult longevity and fecundity were estimated. The thermal requirements (K) and temperature-base (Tb) were estimated for each of the immature stages and for the eggs-adults period. The duration of the eggs and nymphs phases and the egg-adult cycle of the C. gossypii on castor bean leaves at 20-28 °C were 7.6-17 days, 10.2-27.5 days, and 16.9-44.5 days, respectively. The lower temperature inhibited the oviposition of C. gossypii, whereas the higher temperatures were most favorable for its development. The municipalities of the Bahia state of Brumado, Irecê, Itaberaba, Jacobina, and Senhor do Bonfim were estimated to have a high potential for the population growth of C. gossypii. However, a greater number of generations per year of C. gossypii were observed in the municipalities of Brumado and Itaberaba.

https://doi.org/10.1590/1519-6984.180501 790 downloads

South American Guidelines for Cardiovascular Disease Prevention and Rehabilitation
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Herdy, AH

; López-Jiménez, F

; Terzic, CP

; Milani, M

; Stein, R

; Carvalho, T

; Serra, S

; Araujo, CG

; Zeballos, PC

; Anchique, CV

; Burdiat, G

; González, K

; González, G

; Fernández, R

; Santibáñez, C

; Rodríguez-Escudero, JP

; Ilarraza-Lomelí, H

Arquivos Brasileiros de Cardiologia

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aug 2014, Volume 103 N. 2 Suppl. 1 Pages 1 - 31

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

In this document, the Inter-American Committee of Cardiovascular Prevention and Rehabilitation, together with the South American Society of Cardiology, aimed to formulate strategies, measures, and actions for cardiovascular disease prevention and rehabilitation (CVDPR). In the context of the implementation of a regional and national health policy in Latin American countries, the goal is to promote cardiovascular health and thereby decrease morbidity and mortality. The study group on Cardiopulmonary and Metabolic Rehabilitation from the Department of Exercise, Ergometry, and Cardiovascular Rehabilitation of the Brazilian Society of Cardiology has created a committee of experts to review the Portuguese version of the guideline and adapt it to the national reality. The mission of this document is to help health professionals to adopt effective measures of CVDPR in the routine clinical practice. The publication of this document and its broad implementation will contribute to the goal of the World Health Organization (WHO), which is the reduction of worldwide cardiovascular mortality by 25% until 2025. The study group's priorities are the following: • Emphasize the important role of CVDPR as an instrument of secondary prevention with significant impact on cardiovascular morbidity and mortality; • Join efforts for the knowledge on CVDPR, its dissemination, and adoption in most cardiovascular centers and institutes in South America, prioritizing the adoption of cardiovascular prevention methods that are comprehensive, practical, simple and which have a good cost/benefit ratio; • Improve the education of health professionals and patients with education programs on the importance of CVDPR services, which are directly targeted at the health system, clinical staff, patients, and community leaders, with the aim of decreasing the barriers to CVDPR implementation.

https://doi.org/10.5935/abc.2014S003 48707 downloads

I Diretriz Brasileira de Prevenção Cardiovascular
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Simão, AF

; Precoma, DB

; Andrade, JP

; Correa Filho, H

; Saraiva, JFK

; Oliveira, GMM

; Murro, ALB

; Campos, A

; Alessi, A

; Avezum Junior, A

; Achutti, AC

; Miguel, ACMG

; Sousa, ACS

; Lotemberg, AMP

; Lins, AP

; Falud, AA

; Brandão, AA

; Sanjuliani, AF

; Sbissa, AS

; Alencar Filho, AC

; Herdy, AH

; Polanczyk, CA

; Lantieri, CJ

; Machado, CA

; Scherr, C

; Stoll, C

; Amodeo, C

; Araújo, CGS

; Saraiva, D

; Moriguchi, EH

; Mesquita, ET

; Cesena, FHY

; Fonseca, FAH

; Campos, GP

; Soares, GP

; Feitosa, GS

; Xavier, HT

; Castro, I

; Giuliano, ICB

; Rivera, IV

; Guimaraes, ICB

; Issa, JS

; Souza, JRM

; Faria Neto, JR

; Cunha, LBN

; Pellanda, LC

; Bortolotto, LA

; Bertolami, MC

; Miname, MH

; Gomes, MAM

; Tambascia, M

; Malachias, MVB

; Silva, MAM

; Izar, MC

; Magalhães, MEC

; Bacellar, MSC

; Milani, M

; Wajngarten, M

; Ghorayeb, N

; Coelho, OR

; Villela, PB

; Jardim, PCBV

; Santos Filho, RD

; Stein, R

; Cassani, RSL

; D'Avila, RL

; Ferreira, RM

; Barbosa, RB

; Povoa, RMS

; Kaiser, SE

; Ismael, SC

; Carvalho, T

; Giraldez, VZR

; Coutinho, W

; Souza, WKSB

Arquivos Brasileiros de Cardiologia

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2013, Volume 101 N. 6 Pages 1 - 63

Abstract: Pt | Text: Pt | PDF: Pt

https://doi.org/10.5935/abc.2013S012 62742 downloads Cited 25 times in SciELO

Micobactérias atípicas em doentes sem síndroma de imunodeficiência adquirida
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Marinho, A

; Fernandes, G

; Carvalho, T

; Pinheiro, D

; Gomes, I

Revista Portuguesa de Pneumologia

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jun 2008, Volume 14 N. 3 Pages 323 - 337

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

As micobactérias não tuberculosas (MNT) têm um papel patogénico de importância crescente em doentes com serologia positiva para o vírus da imunodeficiência humana (VIH), em doentes com doença pulmonar crónica, em outras doenças crónicas, e ainda nos idosos. Objectivo: Avaliar a importância do isolamento de MNT em amostras respiratórias em doentes adultos sem infecção VIH. Material e métodos: Estudo retrospectivo dos doentes do Hospital de São João sem infecção VIH conhecida, com pelo menos uma amostra respiratória positiva para MNT, entre 1997 e 2004. Resultados: Foram encontrados 102 doentes com idade mediana de 63 anos; 67% do sexo masculino. Sessenta e três doentes (62%) apresentavam patologia respiratória prévia, maioritariamente sequelas de tuberculose pulmonar (n=19). O agente mais isolado (47%) foi o Mycobacterium avium complex (MAC). Foram identificados 16 casos de doença (15,7%), 14 dos quais cumpriam os critérios definidos pela American Thoracic Society. Dez homens e 6 mulheres, idade mediana de 65 anos. Doze doentes tinham doença pulmonar prévia. Todos tinham clínica de infecção respiratória. As alterações mais observadas no Rx de tórax foram o infiltrado pulmonar, a opacidade linear e a cavitação. O MAC foi o causador de doença em 75% (n=12) dos casos. Conclusão: O isolamento de micobactérias atípicas em amostras respiratórias, nomeadamente em doentes com patologia pulmonar prévia, não significou doença na grande maioria dos casos, mesmo em doentes com doença pulmonar prévia. O agente mais frequentemente isolado foi o MAC, tendo a sua importância relativa sido ainda maior nos casos de doença pulmonar por MNT.

Nontuberculous mycobacteria (NTM) play an increasingly significant pathogenic role in HIV -positive patients, in patients with chronic lung disease, in other chronic conditions and in the elderly. Aims: Evaluate the importance of NTM isolation in respiratory samples in patients without HIV-infection. Methods: Retrospective evaluation of our hospital patients with no known AIDS, with at least one NTM positive respiratory sample, from 1997 -2004. Results: We found 102 patients, with a median age of 63 years; 67% male. Sixty -three (62%) had underlying lung disease, mainly tuberculosis sequelae (n=19). The majority (47%) of the isolations were Mycobacterium avium complex (MAC). A diagnosis of Mycobacterium pulmonary disease was made in 16 patients (15.7%), 14 of which met the American Thoracic Society diagnostic criteria. Ten male and 6 female; median age 65 years. Twelve had underlying lung disease. All of them had respiratory infection complaints. Chest X -rays showed mainly pulmonary infiltrates, linear opacities and cavitation. MAC was the cause of mycobacterium respiratory disease in 12 patients (75%). Conclusion: NTM isolation did not equal pulmonary NTM disease in the majority of cases, even in patients with underlying lung disease. MAC was the most commonly isolated agent and its relative importance was higher in the presence of NTM disease.

1009 downloads Cited 1 time in SciELO

Identification and characterization of excretory/secretory products of Giardia duodenalis trophozoites
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Carvalho, T.

Journal of Venomous Animals and Toxins including Tropical Diseases

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2008, Volume 14 N. 3 Pages 553 - 553

Abstract: En | Text: En | PDF: En

781 downloads

10.

Reação de precipitação de Ag na liga Cu-8%Al-6%Ag
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Silva, R.A.G.

; Magdalena, A.G.

; Carvalho, T. M.

Eclética Química

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2008, Volume 33 N. 1 Pages 63 - 70

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

A reação de precipitação de prata na liga Cu-8%Al-6%Ag foi estudada usando medidas de variação da microdureza com a temperatura e o tempo de envelhecimento, difratometria de raios X (DRX), calorimetria exploratória diferencial (DSC), microscopia eletrônica de varredura (MEV). Os resultados obtidos indicaram que o mecanismo da reação de precipitação da prata é um processo controlado pela difusão da prata e a velocidade desta reação atinge um máximo em torno de 500°C.

Ag precipitation reaction in the Cu-8wt.%Al-6wt.%Ag alloys was studied using microhardness measurements with temperature and ageing time, X-ray diffraction patterns (DRX), differential scanning calorimetry (DSC) and scanning electron microscopy (SEM). The results obtained showed that the mechanism of Ag precipitation reaction is an Ag diffusion controlled process and reaction rate reaches a maximum at about 500ºC.

2395 downloads

11.

Cytotoxic and antifungal properties of medicinal plants from Ceará, Brazil
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Faria, M. H. G.

; Carvalho, T. G.

; Rabenhorst, S. H. B.

; Sidrim, J. J. C.

; Moraes-Filho, M. O.

Brazilian Journal of Biology

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nov 2006, Volume 66 N. 4 Pages 1133 - 1135

Abstract: En | Text: En | PDF: En

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