Education and the labor market in Latin America: confronting globalization

Includes bibliography

Structural change and domestic technological capabilities

Includes bibliography

Peru: integration, sectoral specialization and synchronization with international gross domestic product cycles

Includes bibliography

Domestic technological development

Includes bibliography

High incidence of 'Dag-like' sperm defect in the domestic cat

The occurrence of a high incidence of sperm tail defects in a male domestic cat resembling the known 'Dag-like' defect is reported. Sperm analyses were performed in ejaculated samples collected by an artificial vagina and in testicular and epididymal sperm cells after castration. The following alterations were observed using transmission electron microscope: heavily coiled sperm tails containing several axonemal units enclosed in the same common cell membrane; aberrations in the axonemal main structure; and swollen and unevenly distributed mitochondria in the midpiece. Abnormal modifications in the mitochondrial sheath were also found in sperm cells retrieved from testes and epididymides. Considering these findings, we can conclude that this is the Dag-like defect, described previously in other domestic species and a testicular origin may be involved. © ISFM and AAFP 2012.

Movilización de recursos internos = Mobilization of domestic resources

Incluye Bibliografía

Labor de las Naciones Unidas en materia de energía nuclear

Incluye Bibliografía