Laboratório de Tecnologia Educacional BIBLIOTECA DIGITAL               DE CIÊNCIAS

A Ciência das Cores dos Olhos Fundamentos da Pigmentação Ocular: Começamos com a ciência por trás das cores dos olhos. Genética e Hereditariedade: A genética desempenha um papel crucial na cor dos olhos. O gene OCA2, por exemplo, é responsável pela quantidade e tipo de melanina na íris, enquanto outros genes influenciam como esses pigmentos se organizam. A Arte da Diversidade Ocular: A Beleza da Variedade: Além da ciência, há uma beleza intrínseca na variedade de cores dos olhos. Cada olho é único, como uma obra de arte viva. A Experiência Pessoal: Convido você a refletir sobre como a cor dos olhos pode influenciar a nossa percepção dos outros e como ela pode nos conectar com a nossa pr...

A ilustração representa um olho humano com uma íris que exibe um espectro de múltiplas cores, demonstrando a variabilidade de tonalidades presentes em um único órgão visual.

O vídeo visa capturar a diversidade dos olhos humanos através de uma série de takes rápidos, exibindo uma variedade de idades e características. A produção destaca tanto a importância científica quanto a beleza poética dos olhos, oferecendo uma reflexão sobre a singularidade de cada indivíduo.

A imagem mostra cinco animais em risco de extinção no Brasil e suas mais causas de mortalidade que levaram a beira da extinção, como caça, queimada, desmatamento, perda de habitat, plástico, tráfico entre outros...

Uma imagem que representa os 4 maiores riscos para o oceano atualmente.

Um infográfico ilustrativo que demostra os 3 maiores riscos à vida marinha.

Representa a relação da tolerância de perdas de solos na bacia em relação a quantidade de solo atualmente sendo mobilizada.

35cm Similarly to other Brazilian jays, the Curl-crested jay has white lower parts and blue and black upper parts. It may be confused with the Plush-crested jay (Cyanocorax chrysops), but while the last presents the crest in the back of the head, the yellow iris and a blue patch around the eyes, the Curl-crested jay presents the crest on the forehead, the red iris and the head is entirely black. Whereas the Old World ravens are mostly black, as well as the crows, the Brazilan corvids are colorful and most of them have white lower parts. There are 6 species of jays in Brazil, all of them extremely beautiful. The Curl-crested jay is one of Brazilian’s noisiest jays. To make the noise ...

44 cm. The tail is long and there is a topknot. The ventral region is white. The wings are dark brown with black and white streaks. Distribution: From the state of Amapá to Uruguay. Habitat: Open fields, cerrado and caating, also in landscapes modified by man. Diet: Feeds on arthropods and small vertebrates. Reproduction: The nest may be individual or collective. It is built about 5m from the ground. The female lays up to 7 eggs, but there may be more than 20 eggs in collective nests. In the collective nests there is great competition for food among the hatchlings and few them survive. Natural history: When perched it waves its tail, swinging the body in a way that some peop...

37cm It is a unique bird that can only be confused with other Potoos, from which it differs by being mostly gray. Not like any other bird, the Potoo is one of the best camouflaged birds on earth. It spends the whole day quietly perched on a carefully chosen branch in a way it blends with the substrate as the bird seems to be part of the tree. The large orange eyes, which could be a flaw for the camouflage are wisely covered by eyelids with a tiny fold in the middle, from which the bird can see the surroundings as the pupil is exposed while the orange iris is hidden. In the night the bird leaves its perch flying as a falcon in hunt for flying insects that it catches with its huge mouth...

O infográfico tem como assunto a formação da pérola, explicando a origem animais e processos envolvidos, além de curiosidades. As imagens estão livres de direitos autorais obtidas em plataformas digitais com esse fim.

Levanto bibliográfico da prevalência de cáries radiculares em idosos com ênfase na determinação do risco de cáries que o paciente apresenta, com as devidas sugestões de tratamento.

O software F(C): Funções Complexas comtempla a representação gráfica do Plano Complexo a partir do conceito de domínio de cores para a geração de gráficos coloridos.

Physical appearence: 12cm. The upper parts are grayish with black and ferruginous stripes The chest is light brown with spots in the immature. There are yellow ribbons above the eyes and in the wings. The coloration may change when it is dirty due to contact with earth. Distribution: The Grassland Sparrow is found east of the Andes from Colombia to central Argentina but is missing from the Amazon Basin upstream from the Tapajós river. Habitat: Dry fields with grass, cerrado and crops. Diet: Feeds on grains and small insects. Reproduction: During the breeding season they live in pairs in a territory defended by the male. The nest is opened and placed on the ground. The eggs are s...

Physical appearance: 36 cm. The legs are short and yellow. The body is predominantly grey, darker in the back. The top of the head is black. The immature is striated and brownish. Distribution: American Continent, Africa, Asia, Australia and islands in the Pacific. Habitat: Rivers, lakes and mangroves of different sizes. Diet: Aquatic insects, mollusks, amphibians, reptiles and fish. Reproduction: The nest is a platform on the top of tall trees. Lays three eggs. Natural history: Solitary and migratory. There are saw-like structures inside the beak to help holding slippery food. May be eaten by carnivorous fish such as the trahiras (Hoplias sp.) when walking on flooded land....

Length: 20cm Identification: nightjars are always very difficult to identify as they are nocturnal birds, rarely seen during the day due to their camouflage. On the other hand there are few species inhabitting urban areas and among these the little nightjar is usually the smallest and with the lightest color pattern. Distribution: it is distributed through all the South American countries east to the Andes. Habitat: occurs in a wide range of ecosystems, but is specially common in forest edges surrounded by crops and wetlands. This nightjar spends the whole day quiet and very well camouflaged on the ground and thus is rarely seen at daylight. It only flies during the day ...

Physical appearance: 11 cm. The upper parts are dark and the inferior parts yellow. There is a white bar in the supercilium. The females are smaller than the males. The immature individuals have grey belly and do not have the bar above the eye. Distribution: From Mexico to Chile. Habitat: Inhabits various environments provided there is plenty of trees and flowers. Diet: Feeds mainly on nectar. Also eats insects. Visits hummingbird feeders. Reproduction: Builds two kinds of nest. A breeding one that is compact with thick walls and a resting nest made of leaves, grass and spider webs. Lays two or three white eggs. Only the female incubates. The male helps feeding the brood with i...

Physical appearance: 26 cm. The upper parts are green, somewhat yellow, barred in black. The inferior parts are buffy or white, also barred. The tail and the top of the head are black. The male has a red spot below the eye while in the female this spot is black. Distribution: From Eastern Amazon to Uruguay and Argentina. Habitat: Forest borders, gallery and secondary forests, woods and parks in cities. Diet: Feeds on ants and insect larva, mainly beetles. Also eats fruits. Reproduction: After courtship the couple builds a nest inside an old tree, sometimes palm trees and others. The nest is generally downwards, avoiding the water when it rains. Two to four eggs are laid and the ...

13,5 cm. The male’s top of the head is black with a scarlet topknot. The body is red, with the upper parts brownish red. The female does not have a topknot and the upper parts are brown. Distribution: From the Guyanas to Argentina. Habitat: Secondary forests, cerrado and farms. Diet: Feeds on seeds and insects. Reproduction: When breeding lives in pairs and the male protects the territory. Builds a cup-like nest with leaves, lichens and spider webs. Lays 3 to 5 bluish or white eggs. Both male and female feed the offspring. Natural history: The male’s topknot can only be seen when it is excited. When not breeding lives in groups, sometimes mixing with other species. In dry ...

60cm Identification: there are four mostly white species of egrets in Brazil, the snowy egret can be told apart by its smaller size and also for having the tip of the beak black and for having dark legs with yellow feet. Laypeople usually think this species is a young great egret, however it is technically different enough to be place in another genus. It is bit more demanding than the great egret regarding its habitat necessities, as it does not occur in polluted waters and is more strongly associated to aquatic plants such as the water lily. Its reduced size allows this bird to walk over the aquatic plants without sinking. It feeds mainly on small fishes and tadpoles. The nest is ...