St. Francis Xavier University is a primarily undergraduate university located in Antigonish, Nova Scotia, Canada. The university brings together 5,100 students from across Canada and around the world in arts, science, business and information systems. It is a member of the U4 League, a group of primarily undergraduate universities in Eastern Canada. Wikipedia.
Arora V.K.,Environment Canada |
Montenegro A.,St. Francis Xavier University
Nature Geoscience | Year: 2011
Afforestation, the conversion of croplands or marginal lands into forests, results in the sequestration of carbon. As a result, afforestation is considered one of the key climate-change mitigation strategies available to governments by the United Nations1. However, forests are also less reflective than croplands, and the absorption of incoming solar radiation is greater over afforested areas. Afforestation can therefore result in net climate warming, particularly at high latitudes2-5. Here, we use a comprehensive Earth system model to assess the climate-change mitigation potential of five afforestation scenarios, with afforestation carried out gradually over a 50-year period. Complete (100%) and partial (50%) afforestation of the area occupied at present by crops leads to a reduced warming of around 0.45 and 0.25 °C respectively, during the period 2081-2100. Temperature benefits associated with more realistic global afforestation efforts, where less than 50% of cropland is converted, are expected to be even smaller, indicating that afforestation is not a substitute for reduced greenhouse-gas emissions. We also show that warming reductions per unit afforested area are around three times higher in the tropics than in the boreal and northern temperate regions, suggesting that avoided deforestation and continued afforestation in the tropics are effective forest-management strategies from a climate perspective. © 2011 Macmillan Publishers Limited. All rights reserved.
News Article | December 8, 2016
TORONTO, ONTARIO--(Marketwired - Dec. 8, 2016) - Rubicon Minerals Corporation (TSX:RMX) ("Rubicon" or the "Company") is pleased to announce that, upon the completion of the refinancing and recapitalization transaction (the "Restructuring Transaction") announced on October 20, 2016, Peter R. Jones, P. Eng., and David A. S. Palmer, Ph.D., P.Geo., will be appointed to the Rubicon Board of Directors (the "Board"). Michael A. Willett, P. Eng., will also join the management team as the Director of Projects. Mr. Jones is a Professional Engineer and a seasoned mining executive with more than 40 years of management, operating, and technical experience in the mining industry. Peter was instrumental in the development and transformation of Hudbay Minerals Inc. ("Hudbay") and its predecessor, Hudson Bay Mining and Smelting Company, Ltd. ("HBMS"). As the Chief Executive Officer of Hudbay, Peter orchestrated the company's initial public offering and acquisition of HBMS from Anglo American in 2004. He oversaw Hudbay's emergence until 2008, and its turnaround when he rejoined in 2009. Previously, Mr. Jones was the CEO of HBMS (2002-2004), following years of progressive, senior management roles with the company. Prior to this, he spent several years in various mining, maintenance, and engineering roles at Cominco Ltd., before becoming the Director of Mining of its CESL division (1989-1995). Mr. Jones was also the Chairman and CEO of Adanac Molybdenum Corp. (2008-2009), the Chairman of Medusa Mining Ltd., (2010-2011) and Augyva Mining Resources Inc. (2011-2016). Currently, Mr. Jones serves on the boards of Mandalay Resources Ltd. and Victory Nickel Inc. Previously, he was the Chairman of the Mining Association of Canada and President of the Mining Association of Manitoba. Dr. Palmer is a Professional Geologist with more than 25 years of management, technical, and exploration experience. David is currently the President and CEO of Probe Metals Inc. Previously, Dr. Palmer was the President and CEO of Probe Mines Ltd. (2003-2015) where he led his team to two successful major mineral discoveries, including the multi-million ounce Borden Gold deposit, and the sale of the company to Goldcorp Inc. in 2015. As recognition of his team's accomplishments at Probe Mines, David was the recipient of numerous awards including the PDAC's Bill Dennis Prospector of the Year (2015) and Northern Miner's Mining Person of the Year (2014). Dr. Palmer has over 15 years of experience with exploration properties in Ontario, including the Red Lake area. Mr. Willett is a Professional Engineer with more than 30 years of management, operating, technical, aboriginal and government relations experience in the mining industry. Prior to joining Rubicon, Mr. Willett has held senior management roles with March Consulting Associates Inc. (2013-2016) including Vice President of Mining and Business Development, where he was involved in various projects, studies and reviews relative to gold, base metals, potash and uranium mines and projects. Previously, Mr. Willett was the CEO of Tamerlane Ventures Inc. (2010-2013) where he led the advancement of the Pine Point Project in the Northwest Territories. Between 1989 and 2010, Mr. Willett spent several years in various senior mining and engineering roles for Hudbay including General Manager of its Snow Lake Operations and Chief Mine Engineer of the Ruttan Mine. Prior to this, Michael worked for Aurora Quarrying Ltd. and Dynatec Mining Ltd. completing various exploration, pre-production, production and expansion projects across Canada including in the Red Lake and Timmins (Ontario) and Val d'Or (Quebec) mining camps. "We welcome the commitment of Peter and David to the Rubicon Board, and Michael in joining the management team," said Julian Kemp, BBA, CA, C.Dir., interim Chairman, President and CEO of Rubicon. "Peter and David bring a wealth of technical and executive management experience that are invaluable at this juncture of Rubicon's development and turnaround. Michael brings important underground geological, exploration, mine engineering and project management expertise that will help advance the Phoenix Gold Project." George Ogilvie, P.Eng., incoming President and CEO of the Company following the completion of the Restructuring Transaction, commented, "I look forward to Peter and David's stewardship and working with Michael again after having successfully collaborated with him on many projects at HBMS." Mr. Jones graduated from the Camborne School of Mines in the United Kingdom in 1969. Dr. Palmer received his B.Sc. in Geology at St. Francis Xavier University, and his M.Sc. and Ph.D. in Earth and Planetary Sciences at McGill University. Mr. Willett graduated from Queen's University in Kingston, Ontario, Canada, with a B.Sc. in Mining Engineering and a Masters Certificate in Project Management at the Schulich School of Business in Toronto. Cautionary Statement regarding Forward-Looking Statements and other Cautionary Notes This news release contains statements that constitute "forward-looking statements" and "forward looking information" (collectively, "forward-looking statements") within the meaning of applicable Canadian and United States securities legislation. Generally, these forward-looking statements can be identified by the use of forward-looking terminology such as "believes", "intends", "may", "will", "should", "plans", "anticipates", "potential", "expects", "estimates", "forecasts", "budget", "likely", "goal" and similar expressions or statements that certain actions, events or results may or may not be achieved or occur in the future. In some cases, forward-looking information may be stated in the present tense, such as in respect of current matters that may be continuing, or that may have a future impact or effect. Forward-looking statements reflect our current expectations and assumptions, and are subject to a number of known and unknown risks, uncertainties and other factors which may cause our actual results, performance or achievements to be materially different from any anticipated future results, performance or achievements expressed or implied by the forward-looking statements. Forward-looking statements include, but are not limited to statements regarding the anticipated changes to be made to the Board of Directors and management of the Company upon completion of the Restructuring Transaction. Forward-looking statements are based on the opinions and estimates of management as of the date such statements are made and represent management's best judgment based on facts and assumptions that management considers reasonable. If such opinions and estimates prove to be incorrect, actual and future results may be materially different than expressed in the forward-looking statements. The material assumptions upon which such forward-looking statements are based include, among others, that: the demand for gold and base metal deposits will develop as anticipated; the price of gold will remain at or attain levels that would render the Phoenix Gold Project potentially economic; that any proposed exploration, operating and capital plans will not be disrupted by operational issues, title issues, loss of permits, environmental concerns, power supply, labour disturbances, financing requirements or adverse weather conditions; Rubicon will continue to have the ability to attract and retain skilled staff; and there are no material unanticipated variations in the cost of energy or supplies. Forward-looking statements involve known and unknown risks, uncertainties and other factors which may cause the actual results, performance or achievements of Rubicon to be materially different from any future results, performance or achievements expressed or implied by the forward-looking statements. Such factors include, among others: possible variations in mineralization, grade or recovery or throughput rates; uncertainty of mineral resources, inability to realize exploration potential, mineral grades and mineral recovery estimates; actual results of current exploration activities; actual results of reclamation activities; uncertainty of future operations, delays in completion of exploration plans for any reason including insufficient capital, delays in permitting, and labour issues; conclusions of future economic or geological evaluations; changes in project parameters as plans continue to be refined; failure of equipment or processes to operate as anticipated; accidents and other risks of the mining industry; delays and other risks related to operations; timing and receipt of regulatory approvals; the ability of Rubicon and other relevant parties to satisfy regulatory requirements; the ability of Rubicon to comply with its obligations under material agreements including financing agreements; the availability of financing for proposed programs and working capital requirements on reasonable terms; the ability of third-party service providers to deliver services on reasonable terms and in a timely manner; risks associated with the ability to retain key executives and key operating personnel; cost of environmental expenditures and potential environmental liabilities; dissatisfaction or disputes with local communities or First Nations or Aboriginal Communities; failure of plant, equipment or processes to operate as anticipated; market conditions and general business, economic, competitive, political and social conditions; the implementation and impact of the Restructuring Transaction; our ability to generate sufficient cash flow from operations or obtain adequate financing to fund our capital expenditures and working capital needs and meet our other obligations; the volatility of our stock price, and the ability of our common stock to remain listed and traded on the TSX; our ability to maintain relationships with suppliers, customers, employees, stockholders and other third parties in light of our current liquidity situation and the CCAA proceedings. Forward-looking statements contained herein are made as of the date of this news release and Rubicon disclaims any obligation to update any forward-looking statements, whether as a result of new information, future events or results or otherwise, except as required by applicable securities laws. Readers are advised to carefully review and consider the risk factors identified in the Management's Discussion and Analysis for period ending December 31, 2015 under the heading "Risk Factors" for a discussion of the factors that could cause Rubicon's actual results, performance and achievements to be materially different from any anticipated future results, performance or achievements expressed or implied by the forward-looking statements. Readers are further cautioned that the foregoing list of assumptions and risk factors is not exhaustive and it is recommended that prospective investors consult the more complete discussion of Rubicon's business, financial condition and prospects that is included in this news release. The forward-looking statements contained herein are expressly qualified by this cautionary statement. The Toronto Stock Exchange has not reviewed and does not accept responsibility for the adequacy or accuracy of this release.
News Article | February 15, 2017
Patented gas leak detection technology provides energy industry with enhanced visibility, safety and environmental protection TORONTO, ONTARIO--(Marketwired - Feb. 14, 2017) - Altus Group Limited ("Altus Group") (TSX:AIF), a leading provider of commercial real estate services, software and data solutions, and St. Francis Xavier University ("StFX") today announced that they have signed a technology collaboration agreement. The agreement provides Altus Group with exclusive worldwide commercialization usage rights of StFX's vehicle-based Emissions Attribution via Computational Techniques ("ExACT") gas leak detection technology. Altus Group's Geomatics division will offer StFX's ExACT technology as a service for energy providers and regulators. The patented ExACT technology allows for detecting and mapping the emission of ground-sourced greenhouse gases into the atmosphere. The ExACT sensor is mounted on a vehicle and collects near-ground geochemical readings that are uploaded to a cloud-based database and allows for real-time analysis. "Collaborating with StFX is another example of how we're continuously innovating to serve our clients," said Dave Gurnsey, President of Altus Geomatics, Altus Group. "We're pleased to have the exclusive rights to commercialize this leading-edge best-in-class technology. This new service will add value to our clients by providing greater visibility into emissions and will complement our geospatial data management solutions." The ExACT survey technology is capable of covering a large region at a very fine scale which provides operators with the detailed data and analytics they require to detect leaks before they become a regulatory issue. The ability to identify emissions in an efficient and cost effective manner allows producers to minimize the economic cost of lost commodities and maximize environmental protection. "Altus Group is perfectly positioned to make the most of this technology, given its expertise in big data and analytics, and its great people across the country. The industry is moving towards greener, cleaner, and lower risk operations, and Altus Group will play an important role in that transition," said Dr. Dave Risk, Associate Professor and Project Lead, St. Francis Xavier University. For more information on this service offering by Altus Group's Geomatics division, please contact Ryan Maloney, Branch Manager, by email at firstname.lastname@example.org or by telephone at 1-306-842-6060. For more information on ExACT technology, please contact Dr. Dave Risk by email at email@example.com or by telephone at 1-902-867-4854. Altus Group Limited is a leading provider of independent advisory services, software and data solutions to the global commercial real estate industry. Our businesses, Altus Analytics and Altus Expert Services, reflect decades of experience, a range of expertise, and technology-enabled capabilities. Our solutions empower clients to analyze, gain market insight and recognize value on their real estate investments. Headquartered in Canada, we have approximately 2,300 employees around the world, with operations in North America, Europe and Asia Pacific. Our clients include some of the world's largest real estate industry participants across a variety of sectors. Altus Group pays a quarterly dividend of $0.15 per share and our securities are traded on the TSX under the symbols AIF and AIF.DB.A. For more information on Altus Group, please visit: www.altusgroup.com. Consistently recognized as one of the best universities in Canada, StFX exceeds the needs of today's undergraduates through providing the very best academic experience -- outstanding teaching, exceptional hands-on research opportunities, global exchanges, all within Canada's most vibrant and inspiring residential campus. Discover the top ten reasons why you should study at StFX https://www.stfx.ca/why-stfx/reasons-to-attend
Nance R.D.,Ohio University |
Murphy J.B.,St. Francis Xavier University |
Santosh M.,China University of Geosciences |
Santosh M.,Kochi University
Gondwana Research | Year: 2014
The recognition that Earth history has been punctuated by supercontinents, the assembly and breakup of which have profoundly influenced the evolution of the geosphere, hydrosphere, atmosphere and biosphere, is arguably the most important development in Earth Science since the advent of plate tectonics. But whereas the widespread recognition of the importance of supercontinents is quite recent, the concept of a supercontinent cycle is not new and advocacy of episodicity in tectonic processes predates plate tectonics. In order to give current deliberations on the supercontinent cycle some historical perspective, we trace the development of ideas concerning long-term episodicity in tectonic processes from early views on episodic orogeny and continental crust formation, such as those embodied in the chelogenic cycle, through the first realization that such episodicity was the manifestation of the cyclic assembly and breakup of supercontinents, to the surge in interest in supercontinent reconstructions. We then chronicle some of the key contributions that led to the cycle's widespread recognition and the rapidly expanding developments of the past ten years. © 2013 International Association for Gondwana Research.
Murphy J.B.,St. Francis Xavier University
Earth-Science Reviews | Year: 2013
The appinite suite of rocks offers a unique opportunity to study the effect of water on the generation, emplacement and crystallization history of mafic to felsic magma. The suite consists of a group of coeval plutonic and/or hypabyssal rocks, ranging from ultramafic to felsic in composition in which hornblende is the dominant mafic mineral, and typically occurs both as large prismatic phenocrysts and in the finer grained matrix. The suite is also characterized by abundant evidence for mixing and mingling between diverse magma types and variable degrees of contamination by host rock.Field observations corroborate experimental and theoretical studies that the hornblende stability field expands at the expense of olivine and pyroxene with increasing pH2O in the magma. Textures characteristic of appinites are consistent with rapid growth and with experimental evidence for the reduced viscosity of melts allowing efficient migration of ions to the sites of mineral growth.The appinite suite was originally defined in the Paleozoic Caledonide orogen in Scotland, where it occurs as a number of small shallow crustal bodies that were emplaced after the cessation of subduction and in the immediate aftermath of terrane collision and closure of the Iapetus Ocean. The mafic component is thought to have been triggered by asthenospheric upwelling following stab break-off, and magmas produced have both juvenile and sub-continental lithospheric mantle components. Its compositions have affinities with shoshonites. The felsic components include large batholiths that were probably derived by fractional crystallization.Other appinite suites share some, but not all of these characteristics. Appinite suites apparently range in age from Neo-Archean to Recent, and occur at all crustal levels, at depths of up to 40. km. In addition to shoshonites, appinite suites share some similar geochemical features with high-Mg andesites, sanukitoids and adakites. Some common tectonic traits include a tendency to form soon after the cessation of subduction, and the important role of deep crustal faults as conduits for magmas of various compositions to rise towards the surface. These conduits provide the setting for magmas of diverse composition to mix and mingle. Neo-Archean appinites, and their genetic relationship with abundant coeval sanukitoids, have been interpreted as evidence for the existence of some form of plate tectonics at that time.Melting may be triggered by asthenospheric upwelling caused either by slab breakoff (e.g. after terrane or continental collision) or by the generation of a slab window (e.g. where a ridge collides with a subduction zone). Mafic magma may contain a juvenile component, but Nd isotopic data suggest the additional involvement of a sub-continental lithospheric mantle that, in many instances, was previously metasomatized by fluids and magma and was underplated by mafic complexes during subduction. The composition of the mafic magma may vary from one suite to another. In several suites, the mafic magmas have more traditional calc alkalic or tholeiitic affinities and do not share the shoshonitic characteristics of the type area. In addition, in several appinite complexes, felsic magma was formed by crustal anatexis, rather than fractional crystallization. © 2013 Elsevier B.V.
Maletz J.,St. Francis Xavier University
Palaeontology | Year: 2010
The virgellar spine is one of the most consistent features of the graptolite sicula. It is present in a large number of graptoloid groups, but evolved separately and independently in these as it is seen from the presence of the spine in either ventral (Axonophora) or dorsal (Phyllograptus, Xiphograptus) position. The evolution of the virgellar spine in the Pan-Bireclinata in the Upper Dapingian to Lower Darriwilian time interval is known to follow four main steps, from a simple rutellum, through a lamelliform rutellum and a lanceolate virgella to the true virgellar spine. For the xiphograptids and in Phyllograptus, the origin and early development is less well documented, but appears to follow a similar path. However, the individual stages are condensed, and a true virgellar spine emerges already in the Floian time interval. A virgellar spine was found in Didymograptellus bifidus, necessitating a revision of the diagnosis of the genus Didymograptellus. A number of species of the virgellate genera Xiphograptus, Yutagraptus and Didymograptellus are described from isolated material for the first time. The species are useful for the biostratigraphic correlation of endemic mid-continent North American faunas with the Pacific Type faunal realm. Xiphograptus artus sp. nov., Didymograptellus primus sp. nov. and Didymograptellus cowheadensis sp. nov. from the Cow Head Group of western Newfoundland are described as new. © The Palaeontological Association.
Cuthbertson M.J.,St. Francis Xavier University |
Poole P.H.,St. Francis Xavier University
Physical Review Letters | Year: 2011
In simulations of a waterlike model (ST2) that exhibits a liquid-liquid phase transition, we test for the occurrence of a thermodynamic region in which the liquid can be modeled as a two-component mixture. We assign each molecule to one of two species based on the distance to its fifth-nearest neighbor, and evaluate the concentration of each species over a wide range of temperature and density. Our concentration data compare well with mixture-model predictions in a region between the liquid-liquid critical temperature and the temperature of maximum density. Fits of the model to the data in this region yield accurate estimates for the location of the critical point. We also show that the liquid outside the region of density anomalies is poorly modeled as a simple mixture. © 2011 American Physical Society.
Casey A.F.,St. Francis Xavier University
Journal of Obesity | Year: 2013
Background. Research shows obesity to be more prevalent amongst individuals with intellectual disability (ID) making correct measurement of body composition crucial. This study reviewed the validity and reliability of methods used for assessing body composition in individuals with ID. Methods. Authors conducted electronic searches through PubMed (1990 to present) and PsycINFO (1990 to present) and assessed relevant articles independently based on scoping review guidelines. Reviewers included primary research related to the validity and reliability of body composition measures on individuals with ID. Results. Searches identified six articles assessing body composition methods used on individuals with ID including body mass index (BMI), skinfold thickness, bioelectrical impedance analysis (BIA), waist circumference, tibia length, and anthropometric girth measurements. BMI and waist circumference appear suitable measures but skinfold thickness measurements may not be advisable due to participants' noncompliance resulting in a lack of precision and inaccurate results. Conclusions. The current literature contains too few well-conducted studies to determine the precision and validity of body composition measures on individuals with ID. There may be a need to devise further regression equations that apply to individuals with specific types of ID in order to increase the reliability and validity of body composition measurements. © 2013 Amanda Faith Casey.
St. Francis Xavier University | Date: 2015-12-01
An emission monitoring system includes at least one gas analyzer for measuring a concentration of a first gas and a concentration of a second gas, a positioning system for determining the location of the at least one gas analyzer when the concentration of the first gas is measured. A method for monitoring emissions at an industrial site and a computer-implemented event detection system applies the steps of detecting the presence of a gas emission event based on a first detection ratio calculated from the measured concentration of the first gas, the measured concentration of the second gas, a background concentration of the first gas and a background concentration of the second gas.
St. Francis Xavier University | Date: 2012-03-12
A method and system comprising measuring concentrations of first and second isotopologues of a gas of interest within a first cavity that is sealably in contact with a soil location through an inlet membrane, and the first cavity being defined by chamber walls having openings covered by outlet membranes. Reference concentrations of the first and second isotopologues are measured in a second cavity having a closed bottom, the second cavity being defined by chamber walls having openings covered by more outlet membranes. Relative flux of the isotopologues can be calculated using the measured concentrations.