Hominidae
Mostrando 1-10 de 10 artigos, teses e dissertações.
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1. O disco intervertebral humano nas regiões cervical e lombar: morfologia e envelhecimento. / The human intervertebral disc in the cervical and lumbar segments: morphology and aging.
As alterações morfológicas do envelhecimento normal do disco intervertebral confundem-se com as patológicas. O objetivo deste estudo foi elaborar um perfil destas alterações. Discos intervertebrais cervicais e lombares foram coletados de 30 indivíduos assintomáticos: 15 jovens e 15 idosos. A morfologia foi analisada por macroscopia, ressonância magn
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/09/2011
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2. Origem do Homo sapiens e sua chegada às Américas : uma contribuição da antropologia molecular
Desde o final dos anos 80, o estudo de marcadores de DNA tem contribuído enormemente para um melhor entendimento de questões antropológicas. Atualmente, duas questões têm sido debatidas fortemente: a primeira envolve o modelo de origem dos humanos modernos e a possível assimilação de linhagens arcaicas pelas populações de Homo sapiens saídas da Á
Publicado em: 2007
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3. Genera of the human lineage
Human fossils dated between 3.5 and nearly 7 million years old discovered during the last 8 years have been assigned to as many as four new genera of the family Hominidae: Ardipithecus, Orrorin, Kenyanthropus, and Sahelanthropus. These specimens are described as having morphological traits that justify placing them in the family Hominidae while creating
National Academy of Sciences.
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4. Evidence on the age of the Asian Hominidae.
A number of separate lines of evidence indicate that all of the known Asian hominids are less than 1 million years old. A review of paleontologic, radiometric, and paleomagnetic data strongly supports this conclusion. This more recent age estimate provides important implications about the taxonomy and paleocultural adaptations of the early Asian hominids. Al
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5. Alu elements and hominid phylogenetics
Alu elements have inserted in primate genomes throughout the evolution of the order. One particular Alu lineage (Ye) began amplifying relatively early in hominid evolution and continued propagating at a low level as many of its members are found in a variety of hominid genomes. This study represents the first conclusive application of short interspersed elem
National Academy of Sciences.
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6. Tempo and mode in human evolution.
The quickening pace of paleontological discovery is matched by rapid developments in geochronology. These new data show that the pattern of morphological change in the hominid lineage was mosaic. Adaptations essential to bipedalism appeared early, but some locomotor features changed much later. Relative to the highly derived postcrania of the earliest homini
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7. Molecular systematics of higher primates: genealogical relations and classification.
We obtained 5' and 3' flanking sequences (5.4 kilobase pairs) from the psi eta-globin gene region of the rhesus macaque (Macaca mulatta) and combined them with available nucleotide data. The completed sequence, representing 10.8 kilobase pairs of contiguous noncoding DNA, was compared to the same orthologous regions available for human (Homo sapiens, as repr
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8. Segmental Duplications in Euchromatic Regions of Human Chromosome 5: A Source of Evolutionary Instability and Transcriptional Innovation
Recent analyses of the structure of pericentromeric and subtelomeric regions have revealed that these particular regions of human chromosomes are often composed of blocks of duplicated genomic segments that have been associated with rapid evolutionary turnover among the genomes of closely related primates. In the present study, we show that euchromatic regio
Cold Spring Harbor Laboratory Press.
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9. Implications of natural selection in shaping 99.4% nonsynonymous DNA identity between humans and chimpanzees: Enlarging genus Homo
What do functionally important DNA sites, those scrutinized and shaped by natural selection, tell us about the place of humans in evolution? Here we compare ≈90 kb of coding DNA nucleotide sequence from 97 human genes to their sequenced chimpanzee counterparts and to available sequenced gorilla, orangutan, and Old World monkey counterparts, and, on a m
National Academy of Sciences.
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10. A Retroviral Promoter and a Cellular Enhancer Define a Bipartite Element Which Controls env ERVWE1 Placental Expression
The HERV-W family contains hundreds of loci diversely expressed in several physiological and pathological contexts. A unique locus termed ERVWE1 encodes an envelope glycoprotein (syncytin) involved in hominoid placental physiology. Here we show that syncytin expression is regulated by a bipartite element consisting of a cyclic AMP (cAMP)-inducible long termi
American Society for Microbiology.