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Demand management

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https://www.readbyqxmd.com/read/29053214/herbicide-discovery-in-light-of-rapidly-spreading-resistance-and-ever-increasing-regulatory-hurdles
#1
Bodo Peters, Harry J Strek
According to the UN the global population is expected to grow to almost 10 billion people in 2050. This means that the demand for food, feed and fiber will double while at the same time agriculture is being challenged by a scarcity of water, global warming, less land available for farming, protection of natural habitats, demand for biodiversity on farms and other factors. In addition crop protection products are under pressure from rapidly spreading resistance and increasing regulatory requirements. Many regulatory bodies are also moving away from a risk assessment approach to a more hazard-based approach to grant registrations...
October 20, 2017: Pest Management Science
https://www.readbyqxmd.com/read/29052553/procuring-load-curtailment-from-local-customers-under-uncertainty
#2
Aleksandar Mijatović, John Moriarty, Jure Vogrinc
Demand side response (DSR) provides a flexible approach to managing constrained power network assets. This is valuable if future asset utilization is uncertain. However there may be uncertainty over the process of procurement of DSR from customers. In this context we combine probabilistic modelling, simulation and optimization to identify economically optimal procurement policies from heterogeneous customers local to the asset, under chance constraints on the adequacy of the procured DSR. Mathematically this gives rise to a search over permutations, and we provide an illustrative example implementation and case study...
August 13, 2017: Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
https://www.readbyqxmd.com/read/29052546/real-option-valuation-of-a-decremental-regulation-service-provided-by-electricity-storage
#3
Dávid Zoltán Szabó, Randall Martyr
This paper is a quantitative study of a reserve contract for real-time balancing of a power system. Under this contract, the owner of a storage device, such as a battery, helps smooth fluctuations in electricity demand and supply by using the device to increase electricity consumption. The battery owner must be able to provide immediate physical cover, and should therefore have sufficient storage available in the battery before entering the contract. Accordingly, the following problem can be formulated for the battery owner: determine the optimal time to enter the contract and, if necessary, the optimal time to discharge electricity before entering the contract...
August 13, 2017: Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
https://www.readbyqxmd.com/read/29052543/probabilistic-stability-analysis-the-way-forward-for-stability-analysis-of-sustainable-power-systems
#4
Jovica V Milanović
Future power systems will be significantly different compared with their present states. They will be characterized by an unprecedented mix of a wide range of electricity generation and transmission technologies, as well as responsive and highly flexible demand and storage devices with significant temporal and spatial uncertainty. The importance of probabilistic approaches towards power system stability analysis, as a subsection of power system studies routinely carried out by power system operators, has been highlighted in previous research...
August 13, 2017: Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
https://www.readbyqxmd.com/read/29052242/emerging-infectious-disease-outbreaks-estimating-disease-risk-in-australian-blood-donors-travelling-overseas
#5
A Coghlan, V C Hoad, C R Seed, R Lp Flower, R J Harley, D Herbert, H M Faddy
BACKGROUND AND OBJECTIVES: International travel assists spread of infectious pathogens. Australians regularly travel to South-eastern Asia and the isles of the South Pacific, where they may become infected with infectious agents, such as dengue (DENV), chikungunya (CHIKV) and Zika (ZIKV) viruses that pose a potential risk to transfusion safety. In Australia, donors are temporarily restricted from donating for fresh component manufacture following travel to many countries, including those in this study...
October 19, 2017: Vox Sanguinis
https://www.readbyqxmd.com/read/29050027/new-preventive-approaches-part-ii-role-of-dentin-biomodifiers-in-caries-progression
#6
Ana K Bedran-Russo, Camila A Zamperini
Dental caries is the most prevalent infectious chronic disease in children and adults. With a globally aging population, new demands in the management of dental caries are awakened by the rampant increase in the incidence of dental root caries. Like crown caries, root caries requires bacterial driven tissue demineralization followed by the degradation of the extracellular dentin matrix. Due to the complex composition and ultrastructure, preventive strategies targeting the mineral phase of dentin are insufficient for managing the prevention and progression of root caries...
2017: Monographs in Oral Science
https://www.readbyqxmd.com/read/29049663/surgical-treatment-of-left-ventricular-echinococcosis-through-the-heartport-technique
#7
Alfonso Agnino, Alberto Maria Lanzone, Giuseppe Spira, Amedeo Anselmi
Echinococcal lesions rarely involve the heart; nonetheless, echinococcal cysts of the left ventricular myocardium often demand surgical treatment due to the risk of rupture and anaphylaxis. Herein, an echinococcal cyst of the anteroapical left ventricular wall was managed through small left anterior thoracotomy; repair was achieved under cardioplegic arrest (endoaortic balloon occlusion) with an uneventful course. We discuss the usefulness of such a less invasive approach for the depicted lesion (minimized manipulation of the heart and reduced surgical aggressiveness) and for other lesions involving the apical/lateral LV region...
September 8, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29049074/physiology-and-role-of-intraocular-pressure-in-contemporary-anesthesia
#8
Dermot J Kelly, Sinéad M Farrell
More than 26 million Americans suffer with cataracts, and with 3.6 million cataract extractions performed annually in the United States, it is the most common surgical procedure. The integrity of the delicate structures of the eye that mediate vision is dependent on the intraocular pressure (IOP). Yet, IOP acts to compress the vessels within the globe-akin to a Starling resistor-and is a key component that determines the ocular perfusion pressure, defined as the difference between arterial pressure and IOP...
October 17, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/29046776/the-safety-of-endoscopic-esophageal-procedures-under-general-anesthesia
#9
Go Eun Kim, Duk Kyung Kim, Ji Won Choi, In Sun Chung, Da Woon Jung
BACKGROUND: With the increasing demand for general anesthesia for endoscopic esophageal procedures, anesthesiologists should understand the clinical characteristics of post-procedural complications (PPCs). METHODS: We retrospectively investigated the incidence of and risk factors associated with PPCs of endoscopic esophageal procedures performed under general anesthesia from July 2013 to November 2016. The final analysis included 129 patients; 114 who underwent esophageal endoscopic dissection for esophageal tumors and 15 cases of peroral endoscopic myotomy for achalasia...
October 2017: Korean Journal of Anesthesiology
https://www.readbyqxmd.com/read/29046686/combining-fungicides-and-prospective-npr1-based-just-in-time-immunomodulating-chemistries-for-crop-protection
#10
Xiahezi Kuai, Charles Barraco, Charles Després
Each year, crop yield is lost to weeds competing for resources, insect herbivory and diseases caused by pathogens. To thwart these insults and preserve yield security and a high quality of traits, conventional agriculture makes use of improved cultivars combined with fertilizer and agrochemical applications. However, given that regulatory bodies and consumers are demanding environmentally safer agrochemicals, while at the same time resistance to agrochemicals is mounting, it is crucial to adopt a "holistic" approach to agriculture by not excluding any number of management tools at our disposal...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29046559/linked-sustainability-challenges-and-trade-offs-among-fisheries-aquaculture-and-agriculture
#11
REVIEW
Julia L Blanchard, Reg A Watson, Elizabeth A Fulton, Richard S Cottrell, Kirsty L Nash, Andrea Bryndum-Buchholz, Matthias Büchner, David A Carozza, William W L Cheung, Joshua Elliott, Lindsay N K Davidson, Nicholas K Dulvy, John P Dunne, Tyler D Eddy, Eric Galbraith, Heike K Lotze, Olivier Maury, Christoph Müller, Derek P Tittensor, Simon Jennings
Fisheries and aquaculture make a crucial contribution to global food security, nutrition and livelihoods. However, the UN Sustainable Development Goals separate marine and terrestrial food production sectors and ecosystems. To sustainably meet increasing global demands for fish, the interlinkages among goals within and across fisheries, aquaculture and agriculture sectors must be recognized and addressed along with their changing nature. Here, we assess and highlight development challenges for fisheries-dependent countries based on analyses of interactions and trade-offs between goals focusing on food, biodiversity and climate change...
September 2017: Nature ecology & evolution
https://www.readbyqxmd.com/read/29046076/the-lesser-spotted-pregnant-surgeon
#12
L C Hamilton
With more women entering surgical training, it will become more commonplace to encounter pregnant surgeons. This paper discusses the evidence for work-related risk factors as well as outlining the rights of a pregnant doctor. There are, in fact, very few real risks to pregnancy encountered as a surgeon, with the main risks involving standing or sitting for long periods and fatigue, which can be managed with support from the department. It is important for women in surgery to know that it is possible to continue their training while pregnant so they do not feel pressured into changing to a less demanding specialty or even leaving medicine entirely...
October 19, 2017: Annals of the Royal College of Surgeons of England
https://www.readbyqxmd.com/read/29045494/results-of-a-massive-experiment-on-virtual-currency-endowments-and-money-demand
#13
Nenad Živić, Igor Andjelković, Tolga Özden, Milovan Dekić, Edward Castronova
We use a 575,000-subject, 28-day experiment to investigate monetary policy in a virtual setting. The experiment tests the effect of virtual currency endowments on player retention and virtual currency demand. An increase in endowments of a virtual currency should lower the demand for the currency in the short run. However, in the long run, we would expect money demand to rise in response to inflation in the virtual world. We test for this behavior in a virtual field experiment in the football management game Top11...
2017: PloS One
https://www.readbyqxmd.com/read/29045434/opportunities-challenges-and-systems-requirements-for-developing-post-abortion-family-planning-services-perceptions-of-service-stakeholders-in-china
#14
Hong Jiang, Jieshuang Xu, Esther Richards, Xu Qian, Weihong Zhang, Lina Hu, Shangchun Wu, Rachel Tolhurst
Post-abortion family planning (PAFP) has been proposed as a key strategy to decrease unintended pregnancy and repeat induced abortions. However, the accessibility and quality of PAFP services remain a challenge in many countries including China where more than 10 million unintended pregnancies occur each year. Most of these unwanted pregnancies end in repeated induced abortions. This paper aims to explore service providers' perceptions of the current situation regarding family planning and abortion service needs, provision, utilization, and the feasibility and acceptability of high quality PAFP in the future...
2017: PloS One
https://www.readbyqxmd.com/read/29045052/a-review-of-wheat-diseases-a-field-perspective
#15
REVIEW
Melania Figueroa, Kim E Hammond-Kosack, Peter S Solomon
Wheat is one of the primary staple foods throughout the planet. Significant yield gains in wheat production over the past 40 years have resulted in a steady balance of supply versus demand. However, predicted global population growth rates and dietary changes necessitate substantial yield gains over the next several decades to meet this escalating demand. A key component to meeting this challenge is better management of fungal incited diseases, which can be responsible for 15-20% yield losses per annum. Prominent diseases of wheat that currently contribute to these losses include the rusts, the blotches and head blight/scab...
October 18, 2017: Molecular Plant Pathology
https://www.readbyqxmd.com/read/29044455/use-of-an-app-controlled-neuromuscular-electrical-stimulation-system-for-improved-self-management-of-knee-conditions-and-reduced-costs
#16
Morad Chughtai, Nicholas Piuzzi, George Yakubek, Anton Khlopas, Nipun Sodhi, Assem A Sultan, Salahuddin Nasir, Benjamin S T Yates, Anil Bhave, Michael A Mont
Patients suffering from quadriceps muscle weakness secondary to osteoarthritis or after surgeries, such as total knee arthroplasty, appear to benefit from the use of neuromuscular electrical stimulation (NMES), which can improve muscle strength and function, range of motion, exercise capacity, and quality of life. Several modalities exist that deliver this therapy. However, with the ever-increasing demand to improve clinical efficiency and costs, digitalize healthcare, optimize data collection, improve care coordination, and increase patient compliance and engagement, newer devices incorporating technologies that facilitate these demands are emerging...
October 12, 2017: Surgical Technology International
https://www.readbyqxmd.com/read/29043019/effects-of-livestock-grazing-on-rangeland-biodiversity-a-meta-analysis-of-grouse-populations
#17
REVIEW
Seth J Dettenmaier, Terry A Messmer, Torre J Hovick, David K Dahlgren
Livestock grazing affects over 60% of the world's agricultural lands and can influence rangeland ecosystem services and the quantity and quality of wildlife habitat, resulting in changes in biodiversity. Concomitantly, livestock grazing has the potential to be detrimental to some wildlife species while benefiting other rangeland organisms. Many imperiled grouse species require rangeland landscapes that exhibit diverse vegetation structure and composition to complete their life cycle. However, because of declining populations and reduced distributions, grouse are increasingly becoming a worldwide conservation concern...
October 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/29038166/why-and-how-to-step-down-chronic-asthma-drugs
#18
REVIEW
Michael R Gionfriddo, John B Hagan, Matthew A Rank
Asthma is a common chronic airways disease. The goal of asthma management is to control symptoms while minimizing the side effects of treatment. Following a period of stable asthma, clinicians should consider stepping down treatment. This approach is recommended by current guidelines. Step-down has been studied for several types of asthma drug regimens, and certain approaches may have lower risk than others. Systematic reviews of multiple trials support the following specific step-down approaches: optimizing inhaled corticosteroid dosing when stepping down oral corticosteroid, reducing inhaled corticosteroid from a higher dose, lowering inhaled corticosteroid-long acting bronchodilator (ICS-LABA) dose while adding ICS-LABA on-demand, adding leukotriene receptor antagonist (LTRA) while lowering inhaled corticosteroid dose, and using allergen immunotherapy when reducing inhaled corticosteroid from a higher dose...
October 16, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/29035767/life-cycle-energy-impacts-for-adapting-an-urban-water-supply-system-to-droughts
#19
Ka Leung Lam, Jennifer R Stokes-Draut, Arpad Horvath, Joe L Lane, Steven J Kenway, Paul A Lant
In recent years, cities in some water stressed regions have explored alternative water sources such as seawater desalination and potable water recycling in spite of concerns over increasing energy consumption. In this study, we evaluate the current and future life-cycle energy impacts of four alternative water supply strategies introduced during a decade-long drought in South East Queensland (SEQ), Australia. These strategies were: seawater desalination, indirect potable water recycling, network integration, and rainwater tanks...
October 9, 2017: Water Research
https://www.readbyqxmd.com/read/29035713/an-overview-of-chemical-additives-present-in-plastics-migration-release-fate-and-environmental-impact-during-their-use-disposal-and-recycling
#20
REVIEW
John N Hahladakis, Costas A Velis, Roland Weber, Eleni Iacovidou, Phil Purnell
Over the last 60 years plastics production has increased manifold, owing to their inexpensive, multipurpose, durable and lightweight nature. These characteristics have raised the demand for plastic materials that will continue to grow over the coming years. However, with increased plastic materials production, comes increased plastic material wastage creating a number of challenges, as well as opportunities to the waste management industry. The present overview highlights the waste management and pollution challenges, emphasising on the various chemical substances (known as "additives") contained in all plastic products for enhancing polymer properties and prolonging their life...
October 9, 2017: Journal of Hazardous Materials
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