As organizações internacionais e a proteção dos direitos dos indígenas no âmbito do Direito Internacional: especial referência ao sistema interamericano de direitos humanos e ao direito brasileiro

The purpose of this article is to analyze the role played by key international organizations, particularly those of the UN and the OAS systems in protecting the rights of indigenous peoples under international law. The method adopted for the preparation of this work is descriptive and analytical, applying document analysis based on primary literature sources, especially those arising in organs of the UN and inter-American systems, mainly the jurisprudence from the Inter-American Court of Human Rights. This article starts with the assumption underlying that international organizations have a preponderant role in the need to safeguard and secure the universality and indivisibility of human rights of indigenous peoples. It is argued further that resolutions and conventions emanating from such organizations are absorbed by national legal order of States members, so that, once these standards internalized by States, they can acquire legal force, beyond moral, in order that their liability is accepted.

Equine conceptus development : a mini review

Many aspects of early embryonic development in the horse are unusual or unique; this is of scientific interest and, in some cases, considerable practical significance. During early development the number of different cell types increases rapidly and the organization of these increasingly differentiated cells becomes increasingly intricate as a result of various inter-related processes that occur step-wise or simultaneously in different parts of the conceptus (i.e., the embryo proper and its associated membranes and fluid). Equine conceptus development is of practical interest for many reasons. Most significantly, following a high rate of successful fertilization (71-96%) (Ball, 1988), as many as 30-40% of developing embryos fail to survive beyond the first two weeks of gestation (Ball, 1988), the time at which gastrulation begins. Indeed, despite considerable progress in the development of treatments for common causes of sub-fertility and of assisted reproductive techniques to enhance reproductive efficiency, the need to monitor and rebreed mares that lose a pregnancy or the failure to produce a foal, remain sources of considerable economic loss to the equine breeding industry. Of course, the potential causes of early embryonic death are numerous and varied (e.g. persistent mating induced endometritis, endometrial gland insufficiency, cervical incompetence, corpus luteum (CL) failure, chromosomal, genetic and other unknown factors (LeBlanc, 2004). However, the problem is especially acute in aged mares with a history of poor fertility in which the incidence of embryonic loss between days 2 and 14 after ovulation has been reported to reach 62-73%, and in which embryonic death is due primarily to embryonic defects rather than to uterine pathology (Ball et al., 1989; Carnevale & Ginther, 1995; Ball, 2000).