Underground mine scheduling under uncertainty

17 USC 105 interim-entered record; under review.The article of record as published may be found at http://dx.doi.org/10.1016/j.ejor.2021.01.011Underground mine schedules seek to determine start dates for activities related to the extraction of ore, often with an objective of maximizing net present value; constraints enforce geotechnical precedence between activities, and restrict resource consumption on a per-time-period basis, e.g., development footage and extracted tons. Strategic schedules address these start dates at a coarse level, whereas tactical schedules must account for the day-to-day variability of underground mine operations, such as unanticipated equipment breakdowns and ground conditions, both of which might slow production. At the time of this writing, the underground mine scheduling literature is dominated by a deterministic treatment of the problem, usually modeled as a Resource Constrained Project Scheduling Problem (RCPSP), which precludes mine operators from reacting to unforeseen circumstances. Therefore, we propose a stochastic integer programming framework that: (i) characterizes uncertainty in duration and economic value for each underground mining activity; (ii) formulates a new stochastic variant of the RCPSP; (iii) suggests an optimization-based heuristic; and, (iv) produces implementable, tactical schedules in a practical amount of time and provides corresponding managerial insights.National Institute of Occupational Safety and HealthNational Agency for Research and Development (ANID

Dextromethorphan-quinidine is helpful for pseudobulbar affect disorder in stroke patients

An informed consent article using Hammond FM, Alexander DN, Cutler AJ, et al. PRISM II: an open-label study to assess effectiveness of dextromethorphan/quinidine for pseudobulbar affect in patients with dementia, stroke or traumatic brain injury. BMC Neurology. 2016;16:89. https://doi.org/10.1186/s12883-016-0609-0 for a patient with pseudobulbar affect following strok

THE EXPANDED CITY - STAGE TWO

For 10 years In Certain Places has focused on and shaped developments within the city centre of Preston. The Expanded City is a three-stage programme of artistic research, interventions and events, designed to inform a series of planned infrastructure projects on the outskirts of Preston. Part of Preston’s ‘City Deal’ – a central government initiative which aims to encourage economic growth by addressing strategic infrastructure challenges – the scheme includes the creation of over 17,000 houses as well as new roads and amenities. In the first stage of The Expanded City project (2015-2016) commissioned artists Olivia Keith, Gavin Renshaw, Emily Speed and duo Ian Nesbitt and Ruth Levene investigated the physical and cultural topography of the outskirts of Preston, ‘deep mapping’ the areas marked for growth. The artists share an interest in boundaries, routes, edges and the urban/rural binary, and work across a range of media, including film, photography and performance. This second phase running from 2017 until 2018 was a continuation of the artists' active research and saw the project expand with a series of Network events which brought external perspectives from experts and local communities directly into the development of the artists’ work. These included; Ruth Levene and Ian Nesbitt's 'Precarious Landscape Bus Tour' with archaeologist Bob Johnston; Gavin Renshaw's 'Routes in, Routes Out' in conversation event with cycling journalist Jack Thurston; Olivia Keith two week residency at the Final Whistle Cafe in Cottam culminating in a workshop 'Traces of Place'; Emily Speed's in conversation event with architect Lee Ivett on the topic of playspace 'What do we need in a Space for Play?'; and Lauren Velvick's 'Open House' event, an informal evening of music and discussion about the politics and practicalities of housing, leading to the creation of an 'Open House' publication. The second phase featured the 'Lie of the Land' symposium, a day of artworks, presentations and conversations, which drew on research undertaken by the artists to explore how our everyday lives are shaped by the ownership, management and development of land. The symposium featured talks by Peter Hetherington – journalist and author of the book 'Whose Land is Our Land: The use and abuse of Britain’s forgotten acres', and Julia Heslop – a Newcastle-based artist whose self-build housing project, 'Protohome' (2016), examined participatory alternatives to mainstream housing provision. The event also included a bus tour to sites in and around Preston, during which The Expanded City artists presented their research into issues of housing, cycling infrastructure and the changing landscape. The symposium was accompanied by 'The Expanded City Map' created by artist Claire Tindale. The map geographically locates and gives details of the main research insights generated through the projects by the commissioned artists This phase saw the finalisation by The Decorators of two pieces emerging from their research the 'Learning from Preston' report and the 'Garstang Road Stories' audio artwork. (https://podtail.com/en/podcast/the-decorators-on-air/garstang-road-stories/) Ruth Levene and Ian Nesbitt's research culminated in May 2018 with them curating 'Notes from a Precarious Landscape' – a community exhibition curated by in a vacant house in a new development in Cottam, North Preston, which included contributions from residents of Preston and its surrounding villages. The exhibition explored the ways in which the land around the city is changing or has changed in the past. Emily Speed’s research in phase two of The Expanded City culminated in the project ‘Model Village?’ in June 2018, during which she worked with members of the public, including local residents and school pupils of all ages to construct a temporary model village on the site of a housing development. Participants were asked ‘What would your dream place to live or play in look like?’ and had the opportunity to use coloured clay to build their ideal home, and make a mark on the village by creating, extending, squashing or customising its buildings, trees, parks and streets. Gavin Renshaw's research in this phase concluded with the production of a cycling map for Preston which collates routes, information relevant to cyclists, such as storage, topography and traffic black spots, and existing cycle infrastructure within a single, visual inventory. Olivia Keith's project 'Traces of Place' involved a two-week residency at the Final Whistle Café in Cottam during the summer of 2017, in which she collated memories and contributions from local people.. As a direct result of her work and the conversations hosted, Olivia was invited to contribute to the 'Streets of Change: Beattie’s Preston and Beyond' exhibition at the Harris Museum and Art Gallery, where she created 'Setting in Place: The Making of a Jellied Map of Nether Bartle' a performance installation in two separate venues, Bartle Hall and Harris Museum & Art Gallery, Preston. Another outcome from her research was the creation of a linocut 'Nether Bartle map' as a prompt for discussions around naming and place. The Expanded City has been developed in response to an invitation from Preston City Council, to inform a programme of infrastructure projects on the outskirts of the city proposed by a £430m City Deal scheme. The City Deal scheme aims to deliver new jobs and housing, by addressing strategic transport, environmental, community and cultural infrastructure challenges

Camera trap theft and vandalism: occurrence, cost, prevention and implications for wildlife research and management

Camera traps are increasingly used to monitor wildlife populations and man-agement activities. Failing to detect target occurrence and/or behaviour inhibits the robustness of wildlife surveys. Based on user-testing, it is reasonable to expect some equipment to malfunction but other sources of failure, such as those caused by theft and vandalism, are largely unquantified. Between May2016 and October 2017, we undertook an international survey of professional practitioners who use camera traps for wildlife research and management pro-jects to quantify theft and vandalism, and to document the subsequent effectson project outcomes. We also sought to record the methods used by practitioners to avoid theft and vandalism and whether or not practitioners believed those actions were effective. Most (59%) of the 407 respondents were wild life researchers and university academics. The survey results revealed that camera trap theft and vandalism is a global issue that not only adds to costs via equip-ment loss (approx. USD $1.48 million from n =309 respondents between 2010and 2015) and theft prevention (c. USD$800 000 spent by respondents between 2010 and 2015) but also influences survey design. Vandalism and the ftare clearly a global problem, with responses suggesting that they occur across adiverse array of geographic locations, at varying proximity to human settle-ments, in multiple habitat types and across device placements. Methods to deter human interference included using camouflaging (73%), security devices such as chains (63%) and boxes (43%), use of decoy camera traps, shortening deployment periods, setting the camera relatively high or low to the ground, or moving away from human traffic. Despite this, the responses suggest that attempts to mitigate losses are often not effective. In review of our findings, we make recommendations for the future of camera trapping that requires imple-mentation and testing

Strategy and rationale for urine collection protocols employed in the NEPTUNE study

Abstract Background Glomerular diseases are potentially fatal, requiring aggressive interventions and close monitoring. Urine is a readily-accessible body fluid enriched in molecular signatures from the kidney and therefore particularly suited for routine clinical analysis as well as development of non-invasive biomarkers for glomerular diseases. Methods The Nephrotic Syndrome Study Network (NEPTUNE; ClinicalTrials.gov Identifier NCT01209000) is a North American multicenter collaborative consortium established to develop a translational research infrastructure for nephrotic syndrome. This includes standardized urine collections across all participating centers for the purpose of discovering non-invasive biomarkers for patients with nephrotic syndrome due to minimal change disease, focal segmental glomerulosclerosis, and membranous nephropathy. Here we describe the organization and methods of urine procurement and banking procedures in NEPTUNE. Results We discuss the rationale for urine collection and storage conditions, and demonstrate the performance of three experimental analytes (neutrophil gelatinase-associated lipocalin [NGAL], retinol binding globulin, and alpha-1 microglobulin) under these conditions with and without urine preservatives (thymol, toluene, and boric acid). We also demonstrate the quality of RNA and protein collected from the urine cellular pellet and exosomes. Conclusions The urine collection protocol in NEPTUNE allows robust detection of a wide range of proteins and RNAs from urine supernatant and pellets collected longitudinally from each patient over 5 years. Combined with the detailed clinical and histopathologic data, this provides a unique resource for exploration and validation of new or accepted markers of glomerular diseases. Trial registration ClinicalTrials.gov Identifier NCT01209000http://deepblue.lib.umich.edu/bitstream/2027.42/116023/1/12882_2015_Article_185.pd

National Telemedicine Initiatives: Essential to Healthcare Reform

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/78116/1/tmj.2009.9960.pd

The Empirical Foundations of Telemedicine Interventions for Chronic Disease Management

The telemedicine intervention in chronic disease management promises to involve patients in their own care, provides continuous monitoring by their healthcare providers, identifies early symptoms, and responds promptly to exacerbations in their illnesses. This review set out to establish the evidence from the available literature on the impact of telemedicine for the management of three chronic diseases: congestive heart failure, stroke, and chronic obstructive pulmonary disease. By design, the review focuses on a limited set of representative chronic diseases because of their current and increasing importance relative to their prevalence, associated morbidity, mortality, and cost. Furthermore, these three diseases are amenable to timely interventions and secondary prevention through telemonitoring. The preponderance of evidence from studies using rigorous research methods points to beneficial results from telemonitoring in its various manifestations, albeit with a few exceptions. Generally, the benefits include reductions in use of service: hospital admissions/re-admissions, length of hospital stay, and emergency department visits typically declined. It is important that there often were reductions in mortality. Few studies reported neutral or mixed findings.Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/140284/1/tmj.2014.9981.pd

Practice Models and Challenges in Teledermatology: A Study of Collective Experiences from Teledermatologists

Despite increasing practice of teledermatology in the U.S., teledermatology practice models and real-world challenges are rarely studied.The primary objective was to examine teledermatology practice models and shared challenges among teledermatologists in California, focusing on practice operations, reimbursement considerations, barriers to sustainability, and incentives. We conducted in-depth interviews with teledermatologists that practiced store-and-forward or live-interactive teledermatology from January 1, 2007 through March 30, 2011 in California.Seventeen teledermatologists from academia, private practice, health maintenance organizations, and county settings participated in the study. Among them, 76% practiced store-and-forward only, 6% practiced live-interactive only, and 18% practiced both modalities. Only 29% received structured training in teledermatology. The average number of years practicing teledermatology was 4.29 years (SD±2.81). Approximately 47% of teledermatologists served at least one Federally Qualified Health Center. Over 75% of patients seen via teledermatology were at or below 200% federal poverty level and usually lived in rural regions without dermatologist access. Practice challenges were identified in the following areas. Teledermatologists faced delays in reimbursements and non-reimbursement of teledermatology services. The primary reason for operational inefficiency was poor image quality and/or inadequate history. Costly and inefficient software platforms and lack of communication with referring providers also presented barriers.Teledermatology enables underserved populations to access specialty care. Improvements in reimbursement mechanisms, efficient technology platforms, communication with referring providers, and teledermatology training are necessary to support sustainable practices