Effects of hypoxia on benthic macrofauna and bioturbation in the Estuary and Gulf of St. Lawrence, Canada

The bottom water in the 4300 m deep Lower St. Lawrence Estuary (LSLE) is persistently hypoxic in contrast to the normoxic bottom waters in the Gulf of St. Lawrence (GSL). We photographed the seabed at 11 stations in the Estuary and Gulf of St. Lawrence (EGSL) during the summers 2006 and 2007 and analysed the images to identify bioturbation traces (lebensspuren) and benthic macrofauna. The objective was to identify the environmental variables that influence the density and diversity of benthic macrofauna and bioturbation traces, and the differences that exist among regions with high, medium and low oxygen levels in the bottom water. The bottom water oxygen concentration is the variable that best explains the densities of total-traces as well as surface-traces. However, the density of these traces was higher in hypoxic regions than in well-oxygenated regions. The higher density of traces in the hypoxic region of the LSLE is mainly due to the activities of the surface deposit feeder Ophiura sp., which occurs in large numbers in this region. Possible explanations explored are stress behaviour of the organisms in response to hypoxia and different benthic macrofauna community structures between the hypoxic regions of the LSLE and the normoxic regions of the GSL. In the former, surface deposit feeders and low-oxygen tolerant species dominate over suspension feeders and low-oxygen intolerant species

The Loss of Constitutional Faith: McCleskey v. Kemp and the Dark Side of Procedure

ProfessionalAcademi

The True Legacy of Atkins and Roper: The Unreliability Principle, Mentally Ill Defendants, and the Death Penalty’s Unraveling

In striking down the death penalty for intellectually disabled and juvenile defendants, Atkins v. Virginia and Roper v. Simmons have been understandably heralded as important holdings under the Court’s Eighth Amendment jurisprudence that has found the death penalty “disproportional” for certain types of defendants and crimes. This Article argues, however, that the cases have a far more revolutionary reach than their conventional understanding. In both cases the Court went one step beyond its usual two-step analysis of assessing whether imposing the death penalty violated “evolving standards of decency.” This extra step looked at why even though intellectual disability and youth were powerful mitigators, juries were not able to reliably use them in their decisionmaking. The Court thus articulated expressly for the first time what this Article calls the “unreliability principle:” if too great a risk exists that constitutionally protected mitigation cannot be reliably assessed, the unreliability means that the death penalty cannot be constitutionally imposed. In recognizing the unreliability principle, the Court has called into serious question the death penalty for other offenders to whom the principle applies, such as mentally ill defendants. And, unlike with the “evolving standards” analysis, the unreliability principle does not depend on whether a national consensus exists against the practice. This Article identifies the six Atkins-Roper factors that bring the unreliability principle into play and shows why they make application of the death penalty to mentally ill defendants unconstitutional. The principle, which finds its constitutional home in the cases of Woodson v. North Carolina and Lockett v. Ohio, has profound implications for the death penalty, and if taken to its logical endpoint calls into question the Court’s core premise since Furman v. Georgia, that by providing individualized consideration of a defendant and his crime, the death penalty decision will be free of arbitrariness

Lokalisering av sågverk i Västerbotten

The number of sawmills in Sweden has decreased dramatically since the 1980s and the trend looks set to continue. The sawmills that are left instead becomes larger and are situated farther apart. In northern Sweden, they are concentrated along the coastline. In our study, we compared conditions for running a sawmill in inland areas and coastal areas and looked at what factors have the greatest impact on the profitability of the sawmill in northern Sweden. We chose to compare different locals conditions for a sawmill that only sawn pine timber and had an annual raw material requirements of 300 000 m3ub per year. By analyzing the kNN-data from the Swedish National Forest Inventory we have taken out the size of the timber volume at each site and its catchment. We have also looked at possible competitors in the areas that may affect the purchase price of the commodity. From these data, we have been able to calculate transport distances and then compared the different available distribution channels to get the finished products on the market. Then added together and compared the various factors affecting costs and arrived at the location which is the most profitable and which factors are most instrumental to the outcome. The results suggest that a location on the coast is more profitable, the decisive factor is the ability to distribute the sawn goods by ship

The Conundrum of Zealous Respresentation

Book review of "Rising Road: A True Tale of Love, Race, and Religion in America" by Sharon Davie

Costs and health consequences of chlamydia management strategies among pregnant women in sub-Saharan Africa

Objectives: Chlamydia is the most common bacterial sexually transmitted infection worldwide and a major cause of morbidity – particularly among women and neonates. We compared costs and health consequences of using point-of-care (POC) tests with current syndromic management among antenatal care attendees in sub-Saharan Africa. We also compared erythromycin with azithromycin treatment and universal with age-based chlamydia management. Methods: A decision analytic model was developed to compare diagnostic and treatment strategies, using Botswana as a case. Model input was based upon 1) a study of pregnant women in Botswana, 2) literature reviews and 3) expert opinion. We expressed the study outcome in terms of costs (US$), cases cured, magnitude of overtreatment and successful partner treatment. Results: Azithromycin was less costly and more effective than was erythromycin. Compared to syndromic management, testing all attendees on their first visit with a 75$38 per additional case cured. This cost was lower in high-prevalence populations or if testing was restricted to teenagers. The specific POC tests provided the advantage of substantial reductions in overtreatment with antibiotics and improved partner management. Conclusions: Using POC tests to diagnose chlamydia during antenatal care in sub-Saharan Africa entails greater health benefits than syndromic management does – and at acceptable costs – especially when restricted to younger women. Changes in diagnostic strategy and treatment regimens may improve people’s health and even reduce health care budgets.Chlamydia trachomatis (MeSH); Cost-effectiveness analysis (non-MeSH); Cost Analysis (MeSH); Developing countries (MeSH); Africa (MeSH); Sub-Saharan Africa (MeSH) Maternal health (non-MeSH); Maternal Health Services (MeSH); Women’s Health (MeSH); Point-of-care tests (non-MeSH); Diagnostic tests (non-MeSH); Diagnosis (MeSH); Syndromic approach (non-MeSH); STI management (non-MeSH)