News Article | May 4, 2017
"Safety is a core value for Newmont, and we have made excellent progress towards achieving our goal of zero harm by lowering injury rates by more than 50 percent since 2012," said Newmont's President and Chief Executive Officer Gary Goldberg. "While our injury rates are among the lowest in the mining sector, we want everyone to go home safely after every shift and CORESafety is helping us achieve that goal. CORESafety's approach to safety and health emphasizes accident prevention using a risk-based management system anchored in leadership, management and assurance. Its objective is zero fatalities and a 50 percent reduction in mining's injury rate within five years of implementation. Since its inception in 2011, CORESafety participants have seen a 74 percent reduction in fatalities. CORESafety is a voluntary mine safety and health initiative developed and facilitated by the NMA. CORESafety participants agree to: commit to the CORESafety system; implement a functionally-equivalent version of the CORESafety safety and health management system; submit to NMA annual self-assessments of progress toward implementation of the CORESafety safety and health management system; and, if the company elects to become or maintain CORESafety certification, complete a third- party assessment of its safety and health management system to verify that it is functionally equivalent to CORESafety and submit the assessment report to NMA. Newmont is the fourth NMA member company to complete each step of this process. The National Mining Association (NMA) is the voice of the American mining industry in Washington, D.C. Membership includes more than 325 corporations involved in all aspects of coal and solid minerals production including coal, metal and industrial mineral producers, mineral processors, equipment manufacturers, state mining associations, bulk transporters, engineering firms, consultants, financial institutions and other companies that supply goods and services to the mining industry. To view the original version on PR Newswire, visit:http://www.prnewswire.com/news-releases/newmont-mining-receives-coresafety-certification-300451596.html
Leidy N.K.,Center for Health Outcomes Research |
Wilcox T.K.,Center for Health Outcomes Research |
Jones P.W.,University of London |
Jones P.,University of London |
And 11 more authors.
American Journal of Respiratory and Critical Care Medicine | Year: 2011
Rationale: Although exacerbations are an important problem in chronic obstructive pulmonary disease (COPD) and a target of intervention, there is no valid, standardized tool for assessing their frequency, severity, and duration. Objectives: This study tested the properties of the Exacerbations of Chronic Pulmonary Disease Tool (EXACT), a new patient-reported outcome diary. Methods: A prospective, two-group, observational study was conducted in patients with COPD. The acute group (n = 222) was enrolled during a clinic visit for exacerbation with follow-up visits on Days 10, 29, and 60. The stable group (n = 188), recruited by telephone or during routine visits, was exacerbation free for at least 60 days. Measurements and Main Results: Acute patients completed the diary on Days 1-29 and 60-67; stable patients for 7 days. All patients provided stable-state spirometry and completed the St. George Respiratory Questionnaire-COPD (SGRQ-C). Acute patient assessments included clinician and patient global ratings of exacerbation severity and recovery. Mean age of the sample (n = 410) was 65 (± 10) years; 48% were male; stable FEV1 was 51% predicted (± 20). Internal consistency (Pearson separation index) for the EXACT was 0.92, 1-week reproducibility (stable patients; intraclass correlation) was 0.77. EXACT scores correlated with SGRQ-C (r = 0.64; P < 0.0001) and differentiated acute and stable patients (P<0.0001). In acute patients, scores improved over time (P < 0.0001) and differentiated between degrees of clinician-rated exacerbation severity (P < 0.05). EXACT change scores differentiated responders and nonresponders on Day 10, as judged by clinicians or patients (P < 0.0001). Conclusions: Results suggest the EXACT is reliable, valid, and sensitive to change with exacerbation recovery.
Baes M.,ETH Zurich |
Del Pia A.,ETH Zurich |
Nesterov Y.,CORE |
Onn S.,Technion - Israel Institute of Technology |
Weismantel R.,ETH Zurich
Mathematical Programming | Year: 2012
This paper is about theminimization of Lipschitz-continuous and strongly convex functions over integer points in polytopes. Our results are related to the rate of convergence of a black-box algorithm that iteratively solves special quadratic integer problems with a constant approximation factor. Despite the generality of the underlying problem, we prove that we can find efficiently, with respect to our assumptions regarding the encoding of the problem, a feasible solution whose objective function value is close to the optimal value. We also show that this proximity result is the best possible up to a factor polynomial in the encoding length of the problem. © Springer and Mathematical Optimization Society 2012.
Papavasiliou A.,CORE |
Oren S.S.,University of California at Berkeley |
Proceedings of the Annual Hawaii International Conference on System Sciences | Year: 2015
In this paper we present a stochastic model for multi-area wind production that is used for planning reserves in transmission-constrained systems with large amounts of integrated renewable power supply. The stochastic model accounts for the inter-temporal and spatial dependencies of multi-area wind power production. Results are presented for two case studies of the California and the German power system. © 2015 IEEE.
Aravena I.,CORE |
IEEE Power and Energy Society General Meeting | Year: 2015
We present a distributed asynchronous algorithm for solving the two-stage stochastic unit commitment problem. The algorithm uses Lagrangian relaxation to decompose the problem by scenarios and applies an incremental method to solve the dual problem. At each incremental dual iteration, the algorithm evaluates the dual function, providing a lower bound, and recovers a feasible commitment for first stage units, which (through a feasibility recovery process) results in an upper bound. Both the incremental dual iterations as well as the feasibility recovery are executed asynchronously, resulting in more efficient utilization of parallel processors. The method is tested on a model of the Central Western European system, for which it achieved convergence three times faster than an equivalent distributed synchronous algorithm. © 2015 IEEE.
Van Vyve M.,CORE
Mathematical Programming | Year: 2013
In the fixed-charge transportation problem, the goal is to optimally transport goods from depots to clients when there is a fixed cost associated to transportation or, equivalently, to opening an arc in the underlying bipartite graph. We further motivate its study by showing that it is both a special case and a strong relaxation of the big-bucket multi-item lot-sizing problem, and a generalization of a simple variant of the single-node flow set. This paper is essentially a polyhedral analysis of the polynomially solvable special case in which the associated bipartite graph is a path. We give a O (n3)-time optimization algorithm and a O (n2) -size linear programming extended formulation. We describe a new class of inequalities that we call "path-modular" inequalities. We give two distinct proofs of their validity. The first one is direct and crucially relies on sub- and super-modularity of an associated set function. The second proof is by showing that the projection of the extended linear programming formulations onto the original variable space yields exactly the polyhedron described by the path-modular inequalities. Thus we also show that these inequalities suffice to describe the convex hull of the set of feasible solutions. © 2012 Springer and Mathematical Optimization Society.
Van Vyve M.,CORE |
Wolsey L.A.,CORE |
Yaman H.,Bilkent University
Mathematical Programming | Year: 2014
We consider several variants of the two-level lot-sizing problem with one item at the upper level facing dependent demand, and multiple items or clients at the lower level, facing independent demands. We first show that under a natural cost assumption, it is sufficient to optimize over a stock-dominant relaxation. We further study the polyhedral structure of a strong relaxation of this problem involving only initial inventory variables and setup variables. We consider several variants: uncapacitated at both levels with or without start-up costs, uncapacitated at the upper level and constant capacity at the lower level, constant capacity at both levels. We finally demonstrate how the strong formulations described improve our ability to solve instances with up to several dozens of periods and a few hundred products. © 2013 Springer-Verlag Berlin Heidelberg and Mathematical Optimization Society.
News Article | November 17, 2016
Core-apps, the leading technology platform for the events industry, announced today the renewal of their partnership with the Professional Convention Management Association (PCMA). Core-apps is pleased to announce that they have been selected to provide mobile apps for PCMA’s signature events in 2017, including the Convening Leaders and Education Conferences. Core-apps will also host a mobile app help desk and a tech kiosk at both events. “Our renewed partnership with PCMA is a testament to the great experience the organization has with our team and our platform,” says Jay Tokosch, Core-apps CEO. “We have always welcomed the opportunity to help our industry colleagues enhance their own events through our technology. This renewed contract gives us the ability to further expand our partnership and to continue to collaborate with PCMA on innovation and experimentation for their audiences and events.” Some of the new features available for the 2017 PCMA event apps include Gamification and the enhanced use of iBeacons. “Our shared goal is to create a mobile app experience for PCMA that complements their focus on education and leadership,” says Tokosch. “We’re building on the momentum from last year and will continue to optimize the PCMA event app user experience. Because of the collaborative nature of our engagement, we view our partnership as not only beneficial to our two organizations, but for the events industry as a whole.” “PCMA is excited to renew our partnership with Core-apps as the provider of our 2017 event apps. This year's enhancements will further advance the experience for our attendees, and the always evolving Core-apps platform plays a key part in our overall digital strategy” said Peter Wigren, PCMA’s Senior Vice President, Digital Strategy and Integrated Media. PCMA’s Convening Leaders event will feature the new app functionality and will be available for attendees to use prior to the January 2017 conference. For more information on this event app partnership, please visit core-apps.com About Core-apps: Core-apps is the leading provider of event technology for the Trade Show and Events Industry. The company supports more than 50% of the Top 250 Trade Shows and is the only event technology platform offering Event Management, Mobile Apps, Beacons and Kiosks as 4 tier-one solutions. Founded in 2009, the company is headquartered in Arnold, Maryland and serves customers around the globe. For more information visit core-apps.com. About PCMA: PCMA inspires, connects and innovates the global business events community. We are the world’s largest community for Business Events Strategists; providing senior education and networking for the events sector. PCMA crafts and shares knowledge and market intelligence enabling organizations to make informed business decisions, while providing a platform for peer-to-peer exchange. Headquartered in Chicago, PCMA has 17 chapters throughout the United States, Canada and Mexico with members in more than 40 countries. For more information visit the PCMA website at pcma.org and the PCMA Convene Magazine website at pcmaconvene.org.
News Article | October 28, 2016
Core10, a full-service financial technology, or fintech, software solutions provider, has opened offices in Huntington, W.Va. The startup, which also has offices in Nashville, is advised by Jim McKelvey, co-founder of Square, and Brad Smith, chairman and CEO of Intuit, among other tech industry heavyweights. Core10 is a pioneer of the new “hereshoring” business model (in contrast to offshoring), that connects cutting-edge technology firms in major metropolitan areas with dedicated teams of technology workers in smaller U.S. cities. “Hereshoring” brings technology jobs to communities and cities in the U.S. that are rich in talent but may have lower costs of living or other financial benefits compared to major metropolitan areas. While many businesses look to move or contract their technology needs well outside the U.S., “hereshoring” looks inward, streamlining communication and logistics while keeping jobs and revenue from leaving the country. Over the next 18 months, Core10 will hire 30 data analysts, developers and QA engineers in the Huntington area. New employees in the Huntington office will work with Core10’s team in Nashville to develop financial technology software for customers in the banking and finance, health care, insurance, logistics, and retail sectors. “I’ve spent the last 15 years connecting technology talent in Nashville with companies that need their skills,” said Jeff Martin, co-founder and CEO of Core10. “I’m passionate about giving tech talent across the U.S. an opportunity to work on innovative projects while staying in their hometowns and know we can do the same for folks in Huntington with Core10.” “Core10 is doing one of my favorite things: solving multiple problems at once by connecting what’s already there,” McKelvey said. “To start, they know there is a shortage of opportunities for technologists in certain geographic areas. So they’re helping those folks partner with value-focused tech companies that need reliable talent but can’t find it domestically.” “We are very excited about the work Core10 is doing and the diversity they bring to the West Virginia economy,” said Keith Burdette, secretary of Commerce for West Virginia. “We have tremendous talent coming out of West Virginia’s colleges and universities with skills the tech industry needs. Not only do we have the human capital, we have a cost of doing business that’s well below the traditional tech hubs. It’s a win-win.” “The potential for igniting entrepreneurship and innovation in West Virginia is unprecedented,” Smith said. “Our state is in the midst of a technology revolution, and is uniquely positioned to capitalize on the opportunity. By tapping into our most precious resource – our creative, values-based and hardworking talent – we are poised to define the next chapter of innovation and growth for West Virginia and beyond.” About Core10 Core10 is a 100 percent U.S.-based software development company that creates financial technology solutions for the banking, health care, insurance and retail verticals, among others. With offices in Huntington, W.Va., and Nashville, Tenn., Core10’s dedicated talent provides world-class outsourced technology expertise at a value without any of the headaches associated with offshoring. By hereshoring fintech software development, Core10 will both build the financial future and help the communities in America’s heartland thrive. To learn more about Core10, visit http://www.core10.io.
News Article | December 5, 2016
WASHINGTON, Dec. 5, 2016 /PRNewswire-USNewswire/ -- The National Mining Association (NMA) today recognized Hecla Mining Company for receiving independent certification under its CORESafety® system. CORESafety's approach to mining safety and health emphasizes accident prevention us...