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https://www.readbyqxmd.com/read/28723099/fledging-critical-zone-science-for-environmental-sustainability
#1
Yihe Lü, Ting Li, Kun Zhang, Bojie Fu
No abstract text is available yet for this article.
July 19, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28714819/an-institutional-repository-experience-at-a-large-health-care-system
#2
Brenda Fay, Jennifer Deal, Vicki Budzisz
Institutional repositories (IRs) collect, preserve, and disseminate the scholarly output of an organization. Though common in academic settings, they are less so in hospitals or health care systems. The librarians for Aurora Health Care decided to create a primarily citation-level IR to organize and promote the scholarly output of Aurora faculty, residents, and fellows using the proprietary software Digital Commons, a product of the company bepress. The repository also hosts a newly published peer-reviewed journal and includes digitized historical images and institutional memorabilia...
July 2017: Medical Reference Services Quarterly
https://www.readbyqxmd.com/read/28690792/the-most-common-diet-results-in-low-reproduction-in-a-generalist-seabird
#3
Susanne van Donk, Kees C J Camphuysen, Judy Shamoun-Baranes, Jaap van der Meer
Dietary specialization has been described across a wide range of taxa in the animal kingdom. Fitness consequences are, however, not well documented. We examined the reproductive consequences of different dietary specializations in the herring gull Larus argentatus, an omnivorous seabird, using an extensive dataset which includes breeding and dietary data of 10 successive years. We hypothesized that pairs that focused on prey of higher energetic value would yield higher fledging rates. An alternative hypothesis is that pairs that relied on more resources simultaneously would reproduce better...
July 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28671216/cellulose-nanocrystals-by-acid-vapour-towards-more-effortless-isolation-of-cellulose-nanocrystals
#4
Marcel Lorenz, Stefan Sattler, Mehedi Reza, Alexander Bismarck, Eero Kontturi
Cellulose nanocrystals (CNCs) are topical in materials science but their full potential is yet to be fulfilled because of bottlenecks in the production: the process consumes huge amounts of water, recycling the strong acid catalyst is difficult, and purification steps are cumbersome, particularly with lengthy dialysis. Production of CNCs with HCl vapour overcomes many of these difficulties but the dispersion of CNCs from the already hydrolysed fibre matrix is a formidable challenge. This study is a fundamental effort to explore very basic means to facilitate CNC dispersion from cotton linter fibres (filter paper), hydrolysed to levelling off degree of polymerization by HCl vapour...
July 3, 2017: Faraday Discussions
https://www.readbyqxmd.com/read/28668317/assessment-and-management-of-cervico-mediastinal-goiter
#5
E Brenet, X Dubernard, J C Mérol, M A Louges, M Labrousse, M Makeieff
Cervico-mediastinal goiter is a particular entity from the point of view of thyroid surgery. Its volume, hardness and intrathoracic extension require the surgeon to adapt technique and perform a painstaking preoperative work-up, so as to draw up fully-fledged plan. CT is now indispensable, to anticipate risks and determine whether sternotomy is needed. Surgery seems to induce more postoperative complications than in conventional surgery, although they can be reduced by retrograde dissection of the inferior laryngeal nerve and downward dissection of the posterior side of the lobe to optimize control of adjacent structures...
June 28, 2017: European Annals of Otorhinolaryngology, Head and Neck Diseases
https://www.readbyqxmd.com/read/28651260/the-cdd-system-in-computed-tomographic-diagnosis-of%C3%A2-diverticular-disease
#6
Daniel Pustelnik, Fabian Henry Jürgen Elsholtz, Christian Bojarski, Bernd Hamm, Stefan Markus Niehues
Purpose This overview sums up the Classification of Diverticular Disease (CDD) with regard to its application in computed tomographic diagnosis and briefly recapitulates its targeted advantages over preliminary systems. Primarily, application of the CDD in computed tomography diagnostics is described. Differences with respect to the categories of the older systems are pointed out on the level of each CDD type using imaging examples. Materials and Methods The presented images are derived from our institute according to the S2k criteria...
August 2017: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
https://www.readbyqxmd.com/read/28649976/efficiency-of-analytical-and-sampling-based-uncertainty-propagation-in-intensity-modulated-proton-therapy
#7
N Wahl, P Hennig, H P Wieser, M Bangert
The sensitivity of intensity-modulated proton therapy (IMPT) treatment plans to uncertainties can be quantified and mitigated with robust/min-max and stochastic/probabilistic treatment analysis and optimization techniques. Those methods usually rely on sparse random, importance, or worst-case sampling. Inevitably, this imposes a trade-off between computational speed and accuracy of the uncertainty propagation. Here, we investigate analytical probabilistic modeling (APM) as an alternative for uncertainty propagation and minimization in IMPT that does not rely on scenario sampling...
June 26, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28639989/use-of-expenditure-analysis-to-enhance-returns-on-investments-in-hiv-services
#8
Brian Honermann, Richael O'Hagan
PURPOSE OF REVIEW: Globally, the response to the HIV epidemic is at a crisis point. International investments in the HIV response have been essentially flat for 8 years and domestic budgets in low and middle-income countries - still recovering from the global recession - have not been able to fill the resource gap to drive a full-fledged HIV response. Still, efficiencies and prioritization of evidence-based interventions enable a significant scale-up of treatment, but millions more people remain without treatment...
July 20, 2017: Current Opinion in HIV and AIDS
https://www.readbyqxmd.com/read/28629794/uncoupling-effect-of-palmitate-is-exacerbated-in-skeletal-muscle-mitochondria-of-sea-acclimatized-king-penguins-aptenodytes-patagonicus
#9
Benjamin Rey, Claude Duchamp, Damien Roussel
In king penguin juveniles, the environmental transition from a terrestrial to a marine habitat, occurring at fledging, drastically stimulates lipid catabolism and the remodelling of muscle mitochondria to sustain extensive swimming activity and thermoregulation in the cold circumpolar oceans. However, the exact nature of these mechanisms remains only partially resolved. Here we investigated, in vitro, the uncoupling effect of increasing doses of fatty acids in pectoralis muscle intermyofibrillar mitochondria isolated, either from terrestrial never-immersed or experimentally cold water immersed pre-fledging king penguins or from sea-acclimatized fledged penguins...
June 17, 2017: Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology
https://www.readbyqxmd.com/read/28625618/low-incidence-of-plastics-in-food-loads-delivered-to-nestlings-by-a-zooplanktivorous-seabird-over-a-21-year-period
#10
J M Hipfner, K R Studholme, M Galbraith
We quantified the amount of plastic found in food loads delivered to nestlings in Cassin's Auklet (Ptychoramphus aleuticus), a small, zooplanktivorous seabird, on Triangle Island, British Columbia, in 1996-2016. The density of plastic in surrounding waters is moderately high, yet few food loads contained any plastic (3 of 850), and none more than two pieces. That result accords well with previous observations on the other four North Pacific auklets (Aethia spp.), leading us to conclude that true auklets rarely transfer plastic to nestlings...
June 15, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28623803/oxidative-status-in-relation-to-metal-pollution-and-calcium-availability-in-pied-flycatcher-nestlings-a-calcium-manipulation-experiment
#11
Silvia Espín, Sandra Ruiz, Pablo Sánchez-Virosta, Thomas Lilley, Tapio Eeva
Metal exposure can produce oxidative stress by disrupting the prooxidant/antioxidant balance. It has been suggested that calcium (Ca) may provide protection against metal toxicity in the organism. The objective of this study is to explore the effects of Ca availability and metal pollution on oxidative stress biomarkers in pied flycatcher (Ficedula hypoleuca) nestlings. For this purpose, we performed a Ca-supplementation experiment with birds inhabiting a Ca-poor and metal-polluted area in SW Finland. An array of oxidative stress biomarkers (GSH, GSH:GSSG ratio, GPx, GST, CAT, SOD, lipid peroxidation and protein carbonylation) was measured in red blood cells...
June 14, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28584946/post-procedural-care-in-interventional-radiology-what-every-interventional-radiologist-should-know-part-ii-catheter-care-and-management-of-common-systemic-post-procedural-complications
#12
Bedros Taslakian, Divya Sridhar
Interventional radiology (IR) has evolved into a full-fledged clinical specialty with attendant comprehensive patient care responsibilities. Providing excellent and thorough clinical care is as essential to the practice of IR as achieving technical success in procedures. Basic clinical skills that every interventional radiologist should learn include routine management of percutaneously inserted drainage and vascular catheters and rapid effective management of common systemic post-procedural complications. A structured approach to post-procedural care, including routine follow-up and early identification and management of complications, facilitates efficient and thorough management with an emphasis on quality and patient safety...
June 5, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28584270/ambient-anthropogenic-noise-but-not-light-is-associated-with-the-ecophysiology-of-free-living-songbird-nestlings
#13
Thomas Raap, Rianne Pinxten, Giulia Casasole, Nina Dehnhard, Marcel Eens
Urbanization is associated with dramatic increases in noise and light pollution, which affect animal behaviour, physiology and fitness. However, few studies have examined these stressors simultaneously. Moreover, effects of urbanization during early-life may be detrimental but are largely unknown. In developing great tits (Parus major), a frequently-used model species, we determined important indicators of immunity and physiological condition: plasma haptoglobin (Hp) and nitric oxide (NOx) concentration. We also determined fledging mass, an indicator for current health and survival...
June 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28582990/to-what-extent-does-access-to-improved-sanitation-explain-the-observed-differences-in-infant-mortality-in-africa
#14
Aye M Alemu
BACKGROUND: To my knowledge, there was no systematic study so far that analysed the extent of the impact of improved sanitation on infant mortality in the African context with long years of full-fledged longitudinal data. AIM: The aim of this study was to empirically examine the extent to which improved sanitation explains the observed differences in infant mortality under 5 years of age across African countries. SETTING: The study covered a panel of 33 countries from north, south, east, west and central Africa for the years 1994-2013...
May 29, 2017: African Journal of Primary Health Care & Family Medicine
https://www.readbyqxmd.com/read/28573381/integrated-population-models-reveal-local-weather-conditions-are-the-key-drivers-of-population-dynamics-in-an-aerial-insectivore
#15
Mitch D Weegman, Todd W Arnold, Russell D Dawson, David W Winkler, Robert G Clark
Changes to weather patterns under a warming climate are complex: while warmer temperatures are expected virtually worldwide, decreased mean precipitation is expected at mid-latitudes. Migratory birds depend on broad-scale weather patterns to inform timing of movements, but may be more susceptible to local weather patterns during sedentary periods. We constructed Bayesian integrated population models (IPMs) to assess whether continental or local weather effects best explained population dynamics in an environmentally sensitive aerial insectivorous bird, the tree swallow (Tachycineta bicolor), along a transcontinental gradient from British Columbia to Saskatchewan to New York, and tested whether population dynamics were synchronous among sites...
June 1, 2017: Oecologia
https://www.readbyqxmd.com/read/28570991/from-antarctica-to-the-subtropics-contrasted-geographical-concentrations-of-selenium-mercury-and-persistent-organic-pollutants-in-skua-chicks-catharacta-spp
#16
Alice Carravieri, Yves Cherel, Maud Brault-Favrou, Carine Churlaud, Laurent Peluhet, Pierre Labadie, Hélène Budzinski, Olivier Chastel, Paco Bustamante
Seabirds integrate bioaccumulative contaminants via food intake and have revealed geographical trends of contamination in a variety of ecosystems. Pre-fledging seabird chicks are particularly interesting as bioindicators of chemical contamination, because concentrations in their tissues reflect primarily dietary sources from the local environment. Here we measured 14 trace elements and 18 persistent organic pollutants (POPs) in blood of chicks of skuas that breed in four sites encompassing a large latitudinal range within the southern Indian Ocean, from Antarctica (Adélie Land, south polar skua Catharacta maccormicki), through subantarctic areas (Crozet and Kerguelen Islands, brown skua C...
May 29, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28555872/local-density-regulates-migratory-songbird-reproductive-success-through-effects-on-double-brooding-and-nest-predation
#17
Bradley K Woodworth, Nathaniel T Wheelwright, Amy E M Newman, D Ryan Norris
Knowledge of the density-dependent processes that regulate animal populations is key to understanding, predicting, and conserving populations. In migratory birds, density-dependence is most often studied during the breeding season, yet we still lack a robust understanding of the reproductive traits through which density influences individual reproductive success. We used 27-years of detailed, individual-level productivity data from an island-breeding population of Savannah sparrows Passerculus sandwichensis to evaluate effects of local and total annual population density on female reproductive success...
May 27, 2017: Ecology
https://www.readbyqxmd.com/read/28552843/cost-of-elective-percutaneous-coronary-intervention-in-malaysia-a-multicentre-cross-sectional-costing-study
#18
Kun Yun Lee, Tiong Kiam Ong, Ee Vien Low, Siow Yen Liow, Lawrence Anchah, Syuhada Hamzah, Houng Bang Liew, Rosli Mohd Ali, Omar Ismail, Wan Azman Wan Ahmad, Mas Ayu Said, Maznah Dahlui
OBJECTIVES: Limitations in the quality and access of cost data from low-income and middle-income countries constrain the implementation of economic evaluations. With the increasing prevalence of coronary artery disease in Malaysia, cost information is vital for cardiac service expansion. We aim to calculate the hospitalisation cost of percutaneous coronary intervention (PCI), using a data collection method customised to local setting of limited data availability. DESIGN: This is a cross-sectional costing study from the perspective of healthcare providers, using top-down approach, from January to June 2014...
May 28, 2017: BMJ Open
https://www.readbyqxmd.com/read/28548900/corticosterone-response-as-an-age-specific-mediator-of-nestling-body-mass-in-a-wild-passerine
#19
Vallo Tilgar, Marianne Lind, Jaanis Lodjak, Kadri Moks
The environment can affect individual performance directly via resource availability or indirectly through resource allocation among competing fitness components, such as body growth and maintenance activities related to short-term survival. Corticosterone (CORT), the main glucocorticoid in birds, may be an important mediator of energy allocation to different organismal functions, but its effect on the plasticity of fitness-related traits has rarely been investigated at different ontogenetic stages. Here, we evaluated the role of baseline and stress-induced CORT on nestling development of wild great tits (Parus major) under different growth conditions and at different developmental stages...
July 2017: Physiological and Biochemical Zoology: PBZ
https://www.readbyqxmd.com/read/28545112/home-range-size-of-tengmalm-s-owl-during-breeding-in-central-europe-is-determined-by-prey-abundance
#20
Marek Kouba, Luděk Bartoš, Václav Tomášek, Alena Popelková, Karel Šťastný, Markéta Zárybnická
Animal home ranges typically characterized by their size, shape and a given time interval can be affected by many different biotic and abiotic factors. However, despite the fact that many studies have addressed home ranges, our knowledge of the factors influencing the size of area occupied by different animals is, in many cases, still quite poor, especially among raptors. Using radio-telemetry (VHF; 2.1 g tail-mounted tags) we studied movements of 20 Tengmalm's owl (Aegolius funereus) males during the breeding season in a mountain area of Central Europe (the Czech Republic, the Ore Mountains: 50° 40' N, 13° 35' E) between years 2006-2010, determined their average hunting home range size and explored what factors affected the size of home range utilised...
2017: PloS One
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