334 research outputs found
Salmon on the Brink: The Imperative of Integrating Environmental Standards and Review on an Ecosystem Scale
This Article examines the interplay between the Clean Water Act and Endangered Species Act, the necessity of applying these statutes under an ecosystem or watershed based model, and the need to coordinate and integrate standards and review processes under the acts. The concept of watershed management is summarized in Part II, and Part III gives a brief overview of the two statutes and their implementation. Part IV focuses on the opportunities for, and necessity of, streamlining and integrating the standards and review under the two statutes to support the integrated, place-based, management model envisioned by a watershed approach. We conclude in Part V that a change in the historical approach to environmental management is essential if we are to take the next big step forward in environmental health
Salmon on the Brink: The Imperative of Integrating Environmental Standards and Review on an Ecosystem Scale
This Article examines the interplay between the Clean Water Act and Endangered Species Act, the necessity of applying these statutes under an ecosystem or watershed based model, and the need to coordinate and integrate standards and review processes under the acts. The concept of watershed management is summarized in Part II, and Part III gives a brief overview of the two statutes and their implementation. Part IV focuses on the opportunities for, and necessity of, streamlining and integrating the standards and review under the two statutes to support the integrated, place-based, management model envisioned by a watershed approach. We conclude in Part V that a change in the historical approach to environmental management is essential if we are to take the next big step forward in environmental health
NEXUS project: exploring profitable, sustainable livestock businesses in an increasingly variable climate
Changing climates, and increased pressure from government and consumers to reduce the impacts of red meat on the environment threaten the viability of red meat production in Australia. We used bioeconomic modelling of a constructed case study farm in the Northern Downs region of Queensland to understand the impacts of a future climate (centred on 2050) on the productivity, profitability, and sustainability of beef production, and to evaluate a range of interventions. We also used semi-structured interviews to understand human adaptive and transformation capacity. Without changes to management, productivity, profitability, and sustainability of beef production in the Northern Downs region is predicted to decrease by 2050. Of the activities modelled, improving the feedbase through oversowing of herbaceous legumes, and transitioning from a breeder herd to steer turnover operation resulted in the greatest improvements in productivity and profitability. Large decreases in methane emissions, on a per ha and per kg liveweight sold basis, were possible through changing to a steer turnover operation and through the application of novel technologies that could provide reductions in the production of enteric methane. The results provide an indication of potential adaptation pathways for the industry and highlight gaps for future research and development
Increased placental glucose transport rates in pregnant mice carrying fetuses with targeted disruption of their placental-specific Igf2 transcripts are not associated with raised circulating glucose concentrations.
At the beginning of the third week of pregnancy, mouse fetuses with targeted disruption of their paternally-transmitted insulin-like growth factor 2 gene placental-specific transcripts have growth-restricted placentas but normal body weights due to upregulated placental nutrient transport. We assessed whether increased placental glucose transport rates were associated with raised maternal glucose concentrations by performing intraperitoneal glucose tolerance tests (ipGTT) in pregnant mice carrying knockout pups and comparing them with mice carrying genotype-matched phenotypically wild type pups. Mean ± SD body weights of affected pups were 95 ± 8% of control values at e16 and 73 ± 7% at e18. There were no differences in areas under the maternal ipGTT curves at either e16 (mean ± SD being 99.0 ± 9.1% of control values; P = .9) or e18 (91.4 ± 13.4%; P = .3), suggesting that effects on transplacental glucose transport in these mice are not mediated through changes in maternal glucose concentrations
Amici Brief of Certain Academics in Law, Medicine, Health Policy, and Clinical Genetics in Support of Petitioners
Brief of Amici Curiae ("friend of the court") submitted by certain academics in law, medicine, health policy, and clinical genetics in support of petitioners on petition for a Writ of Certiorari (No. 11-725
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Raised late pregnancy glucose concentrations in mice carrying pups with targeted disruption of H19delta13.
OBJECTIVE: We have hypothesized that variation in imprinted growth-promoting fetal genes may affect maternal glucose concentrations in pregnancy. To test this hypothesis we evaluated the effects of fetal disruption of murine H19(Delta13) on maternal glucose concentrations in pregnancy. RESEARCH DESIGN AND METHODS: Experimental mice were pregnant females that had inherited the disrupted H19(Delta13) from their fathers and were therefore phenotypically wild type due to imprinting; approximately half of their litters were null for H19(Delta13) through maternal inheritance of the disrupted gene. In control mice approximately half the litter paternally inherited the disrupted H19(Delta13), so the pups were either genetically wild type or phenotypically wild type due to imprinting. Blood glucose concentrations were assessed by intraperitoneal glucose tolerance tests on days 1, 16, and 18 of pregnancy. RESULTS: There were no differences in the glucose concentrations of control and experimental pregnant mice at day 1. However, at day 16 mothers carrying H19(Delta13)-null pups had a significantly higher area under the glucose tolerance test curves than controls (1,845 +/- 378 vs. 1,386 +/- 107 mmol * min * l(-1) [P = 0.01]) in association with increasing pregnancy-related insulin resistance. Although this difference lessened toward term, overall, mothers of maternally inherited H19(Delta13) mutants had significantly higher glucose concentrations during the last trimester (1,602 +/- 321 [n = 17] vs. 1,359 +/- 147 [n = 18] mmol * min * l(-1) [P = 0.009]). CONCLUSIONS: This study provides evidence that maternal glucose concentrations in pregnant mice can be affected by targeted disruption of fetal H19(Delta13). This implies that variable fetal IGF2 expression could affect risk for gestational diabetes
Once a feminist: Lynne Segal on Grace Paley’s The Little Disturbances of Man
The following contributions came in response to a request, sent to a number of key figures in feminism today, to write on a text that had been formative for their thinking as feminists. The chosen text could be a theory, a novel, an artwork, a performance, a poem: one that had stimulated, or even revolutionised, their ideas. As we hoped, this project has created a selection of texts central to our many and different experiences as feminists.
I used to say that Margaret Drabble's The Garrick Year was the story of my life, in my early twenties, as if I was just a creature of time and circumstance. I read The Garrick Year sometime between October 1965, when my first child was born, and the end of 1967, before my marriage disintegrated. Like the heroine Emma Evans, I married a successful actor, had a child, and followed his career—which in the novel led Emma to Hereford for a summer season of plays
Genome-wide screening for DNA variants associated with reading and language traits
This research was funded by: Max Planck Society, the University of St Andrews - Grant Number: 018696, US National Institutes of Health - Grant Number: P50 HD027802, Wellcome Trust - Grant Number: 090532/Z/09/Z, and Medical Research Council Hub Grant Grant Number: G0900747 91070Reading and language abilities are heritable traits that are likely to share some genetic influences with each other. To identify pleiotropic genetic variants affecting these traits, we first performed a genome‐wide association scan (GWAS) meta‐analysis using three richly characterized datasets comprising individuals with histories of reading or language problems, and their siblings. GWAS was performed in a total of 1862 participants using the first principal component computed from several quantitative measures of reading‐ and language‐related abilities, both before and after adjustment for performance IQ. We identified novel suggestive associations at the SNPs rs59197085 and rs5995177 (uncorrected P ≈ 10–7 for each SNP), located respectively at the CCDC136/FLNC and RBFOX2 genes. Each of these SNPs then showed evidence for effects across multiple reading and language traits in univariate association testing against the individual traits. FLNC encodes a structural protein involved in cytoskeleton remodelling, while RBFOX2 is an important regulator of alternative splicing in neurons. The CCDC136/FLNC locus showed association with a comparable reading/language measure in an independent sample of 6434 participants from the general population, although involving distinct alleles of the associated SNP. Our datasets will form an important part of on‐going international efforts to identify genes contributing to reading and language skills.Publisher PDFPeer reviewe
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