Comparative feeding kinematics of tropical hylid tadpoles

Anuran larvae, which are otherwise simple in shape, typically have complex keratinized mouthparts (i.e. labial teeth and jaw sheaths) that allow them to graze upon surfaces. The diversity in these structures among species presumably reflects specializations that allow for maximal feeding efficiency on different types of food. However, we lack a general understanding of how these oral structures function during feeding. We used high-speed digital imaging (500 Hz) to observe tadpoles of six species from the anuran family Hylidae grazing on a standardized food-covered substrate. Tadpoles of these species vary in the number of labial tooth rows, belong to two different feeding guilds (benthic and nektonic), and inhabit ponds and streams. We confirmed that the labial teeth in these species serve two functions: anchoring the mouth to the substrate and raking material off of the substrate. In general, tadpoles with a larger maximum gape or those with fewer labial tooth rows opened and closed their mouths slower than tadpoles with smaller gape or more tooth rows. Nektonic feeding tadpoles released each of their tooth rows proportionally earlier in the gape cycle compared with benthic feeding tadpoles. Lastly, we found some support for the idea that deformation of the jaw sheaths during a feeding cycle is predictable based on tadpole feeding guild. Collectively, our data show that anatomical (e.g. number of labial teeth) and ecological features (e.g. feeding guild) of tadpoles significantly influence how tadpoles open and close their mouths during feeding. © 2013. Published by The Company of Biologists Ltd.

Extraoral alar base cinch. A modification for the technique

The alar base widening is directly related to the Le Fort I osteotomy which could lead to an undesirable facial change if not adequately controlled transoperatively. Several surgical techniques to control the lateralization and widening of the nasal base have been described in the literature. The extraoral technique, first described by Shams and Motamedi in 2002 seems to make this procedure more predictable and reliable. The authors preset a modification for that technique. © 2013 Asian AOMS, ASOMP, JSOP, JSOMS, JSOM, and JAMI.

Six-year follow-up of maxillary anterior rehabilitation with forced orthodontic extrusion: Achieving esthetic excellence with a multidisciplinary approach

Orthodontic extrusion with multidisciplinary treatment can provide predictable outcomes in selected situations, reducing the costs and the adaptation times of gingival tissues after implant integration. Forced orthodontic extrusion is strongly related to interactions of teeth with their supportive periodontal tissues. This article reports a case of orthodontic extrusion of the maxillary incisors for later implant rehabilitation in a patient with periodontal disease. Slow forces were applied for 14 months. After this time, the teeth were extracted, and the implants were placed on the same day. Also in the same session, the provisional crown was fabricated for restoration of the anterior maxillary interdental papillae loss and for gingival contouring. Clinical and radiographic examinations at the 6-year follow-up showed successful tooth replacement and an improved esthetic appearance achieved by this multidisciplinary treatment. The decision to perform orthodontic extrusion for implant placement in adult patients should be multidisciplinary. Copyright © 2013 by the American Association of Orthodontists.

Chuva de sementes e estabelecimento de plântulas em ambientes com bambus na Mata Atlântica

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Padrões fenológicos de espécies arbóreas em um fragmento de floresta semidecídua no estado de São Paulo: definição de padrões sazonais e comparação entre anos

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Avaliação da capacidade atlética de cavalos da raça árabe submetidos a exercícios aeróbicos em esteira ergométrica

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Estudo comparativo entre heparina sódica e heparina de baixo peso molecular (nadroparina cálcica) em cães (Canis familiaris) submetidos à hemódialise

Pós-graduação em Medicina Veterinária - FMVZ

Métodos seguros para comunicação em sistemas de rede sem fio de múltiplos saltos

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Experiência audiovisual e infância: em busca do que escapa ao primeiro olhar

Pós-graduação em Educação - IBRC

Acidentes e uso de álcool entre escolares que participaram ou não do PROERD

Pós-graduação em Educação - FFC

Capital flows to Latin America: third quarter 2004

Includes bibliography

Discurso publicitário de Veja: o sincretismo da mulher contemporânea

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Comparação quantitativa da retração de caninos superiores utilizando dois sistemas de ancoragem

Pós-graduação em Odontologia - FOA

Efeitos da retração dentária sobre o ponto A em pacientes submetidos ao tratamento ortodôntico

Pós-graduação em Odontologia - FOA

Ten Years of Operation of the World Trade Organization Dispute Settlement Mechanism: Outcome for Latin America and the Caribbean

Dispute settlement mechanisms help to create a fairly predictable and accurate environment in which economic agents can pursue their activities in the international arena. The World Trade Organization (WTO) Dispute Settlement Body (DSB) has now been in operation for 10 years and it is fitting, at this point to assess the progress achieved by Latin America and the Caribbean, the region that made most use of this mechanism during the period, and whose countries have made significant gains against protectionism in key export sectors. These successes constitute important precedents which will influence upcoming multilateral negotiations and future trade disputes.This article reviews the work carried out by the DSB, the role of the leading stakeholders in the system (the United States and the European Union) and progress made by countries of the region in a global context marked by the complexity of trade issues and the legal framework that regulates them. The findings presented in this article are based on the study "Una década de funcionamiento del Sistema de Solución de Diferencias de la OMC: avances y desafíos".