Investigation into the use of chicken manure to enhance the biodegradation of total petroleum hydrocarbons.

The use of chicken manure to enhance the biodegradation of total petroleum hydrocarbons (TPH) in composting bioremediation was investigated to help develop an improved understanding of the chemical, biological and toxicological processes involved. Treatability studies combined with an extensive suite of laboratory analyses were designed and undertaken whereby naturally contaminated oil refinery sludge was either amended with chicken manure or left unamended for a total duration of 90 days. The effects of chicken manure on the biodegradation of fractionated aliphatic and aromatic hydrocarbons, differentiation between biostimulation and bioaugmentation effects of chicken manure, and the potentially detrimental effects of chicken manure on the bioremediation process through the introduction and adverse proliferation of non-hydrocarbon degrading microorganisms and the potential introduction of compounds that may elicit toxic effects on hydrocarbon degrading microorganisms were monitored over the duration of the treatability studies using a combination of chemical, toxicity and microbial laboratory analyses. This study found that the addition of chicken manure enhanced the degradation of C9-C12 aliphatic hydrocarbons. It was found that this reflects a combination of biostimulation and bioaugmentation effects and that volatilisation was minimal. This investigation also found that the addition of chicken manure can have positive effects on bioremediation as evident by the enhancement of conditions for microbial growth and/or activity, introduction and enhanced growth of potential hydrocarbon degrading bacterial populations, and the enhanced reduction in toxicity of methanol extractable hydrocarbons. However, it was found that the addition of chicken manure was seen to cause an increase in toxicity of total leachable compounds, which may present a risk to TPH biodegradation through potential toxic effects on hydrocarbon degrading microorganisms. It is concluded from this study that there is a potential for the use of chicken manure to enhance TPH biodegradation, but that this is likely restricted to low molecular weight hydrocarbons

The glacial geomorphology of upper Godthåbsfjord (Nuup Kangerlua) in south-west Greenland

© 2018 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group on behalf of Journal of Maps. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.The Greenland Ice Sheet (GrIS) is known to have experienced widespread retreat over the last century. Information on outlet glacier dynamics, prior to this, are limited due to both a lack of observations and a paucity of mapped or mappable deglacial evidence which restricts our understanding of centennial to millennial timescale dynamics of the GrIS. Here we present glacial geomorphological mapping, for upper Godthåbsfjord, covering 5800 km 2 at a scale of 1:92,000, using a combination of ASTER GDEM V2, a medium-resolution DEM (error < 10 m horizontal and < 6 m vertical accuracy), panchromatic orthophotographs and ground truthing. This work provides a detailed geomorphological assessment for the area, compiled as a single map, comprising of moraines, meltwater channels, streamlined bedrock, sediment lineations, ice-dammed lakes, trimlines, terraces, gullied sediment and marine limits. Whilst some of the landforms have been previously identified, the new information presented here improves our understanding of ice margin behaviour and can be used for future numerical modelling and landform dating programmes. Data also form the basis for palaeoglaciological reconstructions and contribute towards understanding of the centennial to millennial timescale record of this sector of the GrIS.Peer reviewedFinal Published versio

Economic and Social Rights in Northern Ireland: Models of Enforceability

Economic, social and cultural rights (ESR) are those rights defined as such in the International Covenant on Economic, Social and Cultural Rights (1966), the Council of Europe’s Social Rights Charter, the EU’s Charter of Fundamental Rights, and other equivalent legal provisions. In this report, we outline five models for enforcement of economic and social rights (ESR). We use the term ‘model’ to describe these, not in the sense that they are ‘models of best practice’, but simply to indicate that there are various methods already developed which differ from each other in significant ways. There is already extensive, if patchy, implementation of various economic and social rights in Northern Ireland law, even if these protections are not labelled as such. In this context, we need to take into account both common law and statutory provisions regarding rights in the housing, social security, education, employment, human rights, and equality contexts. All of these go some way towards meeting some aspects of internationally-protected ESR, but taken together they still fall short of protecting all internationally-protected ESR to the degree required to satisfy international obligations, as any of the recent reports on the state of ESR in Northern Ireland by the Committee on Economic, Social, and Cultural Rights makes clear. The existing protections do mean, however, that any new initiative is not starting from scratch, which has implications for how best to proceed. The models we discuss below should be regarded as additional to the construction of complementary mechanisms, in civil society particularly, to better enable existing rights that directly or indirectly protect ESR rights, to be implemented more effectively. In particular, it will be important to consider ways in which existing rights could be better mobilised to serve the goal of securing the effective protection of ESR

60 million years of glaciation in the Transantarctic Mountains

The Antarctic continent reached its current polar location ~83 Ma and became shrouded by ice sheets ~34 Ma, coincident with dramatic global cooling at the Eocene-Oligocene boundary. However, it is not known whether the first Antarctic glaciers formed immediately prior to this or were present significantly earlier. Here we show that mountain glaciers were likely present in the Transantarctic Mountains during the Late Palaeocene (~60–56 Ma) and middle Eocene (~48–40 Ma). Temperate (warm-based) glaciers were prevalent during the Late Eocene (~40–34 Ma) and, in reduced numbers, during the Oligocene (~34–23 Ma), before larger, likely cold-based, ice masses (including ice sheets) dominated. Some temperate mountain glaciers were present during the Miocene Climatic Optimum (~15 Ma), before a widespread switch to cold-based glaciation. Our findings highlight the longevity of glaciation in Antarctica and suggest that glaciers were present even during the Early-Cenozoic greenhouse world

Greenland tidewater glacier advanced rapidly during era of Norse Settlement

ACKNOWLEDGMENTS We thank the Greenland Institute of Natural Resources for providing logistical support in Nuuk. Martin Blicher, Thomas Juul-Pedersen, and Johanne Vad are thanked for their research and field assistance. We acknowledge the support of the National Museum of Greenland for permission to undertake excavations near Norse ruin sites (permit 2015/03). Project funding was provided by the Leverhulme Trust Research Project grant 2014-093, and J.M. Lea was supported by funding from the Quaternary Research Association, British Society for Geomorphology, and a UK Research and Innovation (UKRI) Future Leaders Fellowship (MR/S017232/1). We thank two anonymous reviewers and the editor for constructive comments, which helped to substantially improve this paper. D.M. Pearce would like to dedicate this paper to her father Richard M. Pearce.Peer reviewedPostprin

Physically-motivated basis functions for temperature maps of exoplanets

Thermal phase curves of exoplanet atmospheres have revealed temperature maps as a function of planetary longitude, often by sinusoidal decomposition of the phase curve. We construct a framework for describing two-dimensional temperature maps of exoplanets with mathematical basis functions derived for a fluid layer on a rotating, heated sphere with drag/friction, which are generalisations of spherical harmonics. These basis functions naturally produce physically-motivated temperature maps for exoplanets with few free parameters. We investigate best practices for applying this framework to temperature maps of hot Jupiters by splitting the problem into two parts: (1) we constrain the temperature map as a function of latitude by tuning the basis functions to reproduce general circulation model outputs, since disk-integrated phase curve observations do not constrain this dimension; and (2) we infer the temperature maps of real hot Jupiters using original reductions of several Spitzer phase curves, which directly constrain the temperature variations with longitude. The resulting phase curves can be described with only three free parameters per bandpass – an efficiency improvement over the usual five or so used to describe sinusoidal decompositions of phase curves. Upon obtaining the hemispherically averaged day side and night side temperatures, the standard approach would be to use zero-dimensional box models to infer the Bond albedo and redistribution efficiency. We elucidate the limitation of these box models by demonstrating that negative Bond albedos may be obtained due to a choice of boundary condition on the night side temperature. We propose generalized definitions for the Bond albedo and heat redistribution efficiency for use with two-dimensional (2D) temperature maps. Open-source software called kelp is provided to efficiently compute the 2D temperature maps, phase curves, albedos and redistribution efficiencies

Emergency Medical Services Capacity for Prehospital Stroke Care in North Carolina

IntroductionPrior assessments of emergency medical services (EMS) stroke capacity found deficiencies in education and training, use of protocols and screening tools, and planning for the transport of patients. A 2001 survey of North Carolina EMS providers found many EMS systems lacked basic stroke services. Recent statewide efforts have sought to standardize and improve prehospital stroke care. The objective of this study was to assess EMS stroke care capacity in North Carolina and evaluate statewide changes since 2001.MethodsIn June 2012, we conducted a web-based survey on stroke education and training and stroke care practices and policies among all EMS systems in North Carolina. We used the McNemar test to assess changes from 2001 to 2012.ResultsOf 100 EMS systems in North Carolina, 98 responded to our survey. Most systems reported providing stroke education and training (95%) to EMS personnel, using a validated stroke scale or screening tool (96%), and having a hospital prenotification policy (98%). Many were suboptimal in covering basic stroke educational topics (71%), always communicating stroke screen results to the destination hospital (46%), and always using a written destination plan (49%). Among 70 EMS systems for which we had data for 2001 and 2012, we observed significant improvements in education on stroke scales or screening tools (61% to 93%, P < .001) and use of validated stroke scales or screening tools (23% to 96%, P < .001).ConclusionMajor improvements in EMS stroke care, especially in prehospital stroke screening, have occurred in North Carolina in the past decade, whereas other practices and policies, including use of destination plans, remain in need of improvement

An Evaluation of Emergency Medical Services Stroke Protocols and Scene Times

Acute stroke patients require immediate medical attention. Therefore, American Stroke Association guidelines recommend that for suspected stroke cases, emergency medical services (EMS) personnel spend less than 15 minutes (min) on-scene at least 90% of the time. However, not all EMS providers include specific scene time limits in their stroke patient care protocols

Greenland tidewater glacier advanced rapidly during era of Norse settlement

Our ability to improve prognostic modeling of the Greenland Ice Sheet relies on understanding the long-term relationships between climate and mass flux (via iceberg calving) from marine-terminating tidewater glaciers (TWGs). Observations of recent TWG behavior are widely available, but long-term records of TWG advance are currently lacking. We present glacial geomorphological, sedimentological, archaeological, and modeling data to reconstruct the ~20 km advance of Kangiata Nunaata Sermia (KNS; the largest tidewater glacier in southwest Greenland) during the first half of the past millennium. The data show that KNS advanced ~15 km during the 12th and 13th centuries CE at a rate of ~115 m a–1, contemporaneous with regional climate cooling toward the Little Ice Age and comparable to rates of TWG retreat witnessed over the past ~200 years. Presence of Norse farmsteads proximal to KNS demonstrates their resilience to climate change, manifest as a rapidly advancing TWG in a cooling climate. The results place limits on the magnitude of ice-margin advance and demonstrate TWG sensitivity to climate cooling as well as warming. These data combined with our grounding-line stability analysis provide a long-term record that validates approaches to numerical modeling aiming to link calving to climate

Long-term collapse in fruit availability threatens Central African forest megafauna

Afrotropical forests host many of the world’s remaining megafauna, but even here they are confined to areas where direct human influences are low. We use a rare long-term dataset of tree reproduction and a photographic database of forest elephants to assess food availability and body condition of an emblematic megafauna species at Lopé National Park, Gabon. We show an 81% decline in fruiting over a 32-year period (1986-2018) and an 11% decline in body condition of fruit-dependent forest elephants from 2008-2018. Fruit famine in one of the last strongholds for African forest elephants should raise concern for the ability of this species and other fruit-dependent megafauna to persist in the long-term, with consequences for broader ecosystem and biosphere functioning