4 resultados para Noyes family (James Noyes, 1608-1656)

em Deakin Research Online - Australia


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In the matter of Re Patrick, Guest J of the Family Court of Australia held that a sperm donor, known to the lesbian mother of the child, had a right under Australian law to regular contact with the child to the extent that this was in the child's best interests. However, his Honour also held that due to the way in which particular provisions of the Family Law Act 1975 (Cth) are drafted, a sperm donor cannot be regarded as the "parent" of the child, and accordingly called for legislative reform to recognise the rights of known sperm donors wanting involvement with the child. In this article, the authors will first explore the facts and decision in Re Patrick, and then outline a proposal to amend the Family Law Act 1975 so that sperm donors can apply for an order to be a 'parent' under the Act.

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In Re Patrick, Guest J of the Family Court of Australia dealt with the issue of whether a gay sperm donor, known to the lesbian mother of the child, had a right under Australian law to regular contact with the child. Justice Guest held that the sperm donor was allowed contact with the child to the extent that this was in the child's best interests. His Honour did, however, find that due to the way in which particular provisions of Australia's Family Law Act 1975 (Cth) are drafted, a sperm donor cannot be regarded as the 'parent' of the child, and accordingly called for legislative reform to recognise the rights of known sperm donors wanting involvement with the child. In this article, we discuss the matter of Re Patrick, comparing it with the strikingly similar matter of Pursuer Against Defender in the Case of Child A, decided recently by Sheriff Laura Duncan in the Glasgow Sheriff Court. We will then outline a proposal to amend the Family Law Act 1975 so that sperm donors can apply for an order to be a 'parent' for the purposes of the law, and therefore have the same rights and responsibilities as any other parent. In response to the tragic ending to the matter of Re Patrick, we conclude by stressing the need for an educational programme to be established, so that lesbian women who are considering parenthood may do so in the knowledge that the sperm donor does have the status of 'father', and in some jurisdictions 'parent', rather than merely being a 'donor'.

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Background
Rice is the primary source of food for billions of people in developing countries, yet the commonly consumed polished grain contains insufficient levels of the key micronutrients iron (Fe), zinc (Zn) and Vitamin A to meet daily dietary requirements. Experts estimate that a rice-based diet should contain 14.5 µg g−1 Fe in endosperm, the main constituent of polished grain, but breeding programs have failed to achieve even half of that value. Transgenic efforts to increase the Fe concentration of rice endosperm include expression of ferritin genes, nicotianamine synthase genes (NAS) or ferritin in conjunction with NAS genes, with results ranging from two-fold increases via single-gene approaches to six-fold increases via multi-gene approaches, yet no approach has reported 14.5 µg g−1 Fe in endosperm.

Methodology/Principal Findings
Three populations of rice were generated to constitutively overexpress OsNAS1, OsNAS2 or OsNAS3, respectively. Nicotianamine, Fe and Zn concentrations were significantly increased in unpolished grain of all three of the overexpression populations, relative to controls, with the highest concentrations in the OsNAS2 and OsNAS3 overexpression populations. Selected lines from each population had at least 10 µg g−1 Fe in polished grain and two OsNAS2 overexpression lines had 14 and 19 µg g−1 Fe in polished grain, representing up to four-fold increases in Fe concentration. Two-fold increases of Zn concentration were also observed in the OsNAS2 population. Synchrotron X-ray fluorescence spectroscopy demonstrated that OsNAS2 overexpression leads to significant enrichment of Fe and Zn in phosphorus-free regions of rice endosperm.

Conclusions
The OsNAS genes, particularly OsNAS2, show enormous potential for Fe and Zn biofortification of rice endosperm. The results demonstrate that rice cultivars overexpressing single rice OsNAS genes could provide a sustainable and genetically simple solution to Fe and Zn deficiency disorders affecting billions of people throughout the world.