Sample records for allard lake quebec

  1. Magnetization of exsolution intergrowths of hematite and ilmenite: Mineral chemistry, phase relations, and magnetic properties of hemo-ilmenite ores with micron- to nanometer-scale lamellae from Allard Lake, Quebec

    DEFF Research Database (Denmark)

    McEnroe, S.A.; Robinson, P.; Langenhorst, F.


    Hemo-ilmenite ores from Allard Lake, Quebec, were first studied over 50 years ago. Interest was renewed in these coarsely exsolved oxides, based on the theory of lamellar magnetism as an explanation for the high and stable natural remanent magnetizations (NRMs), 32 to 120 A/ m, reported here...

  2. Anthropogenic Pb accumulation in forest soils from Lake Clair watershed: Duchesnay experimental forest (Quebec, Canada)

    Energy Technology Data Exchange (ETDEWEB)

    Ndzangou, Sabary Omer [Universite du Quebec, INRS-Eau, Terre et Environnement, 490 rue de la Couronne, Quebec, Qc, G1K 9A9 (Canada); Richer-LaFLeche, Marc [Universite du Quebec, INRS-Eau, Terre et Environnement, 490 rue de la Couronne, Quebec, Qc, G1K 9A9 (Canada)]. E-mail:; Houle, Daniel [Direction de la recherche forestiere, ministere des Ressources naturelles et de la Faune du Quebec, 2700 rue Einstein, Quebec, Qc, G1P 3W8 (Canada)


    Mineral soil horizons (Ae, Bhf1, Bhf2, Bf, BC and C) were carefully collected from two podzolic soil profiles in the Lake Clair watershed (Quebec) in order to assess anthropogenic trace metal accumulation. Petrographic and selective analyses were performed to establish the soil mineralogy and properties. Furthermore, a complete sequential extraction procedure has been applied to help understanding the complex chemical speciation of Pb in forest soils. Chemical speciation of Pb showed a strong vertical gradient: 85% of this metal is mainly partitioned in refractory minerals in the C-horizon whereas in the upper Bhf1 and Ae-horizons, less than 50% of Pb is associated with this fraction. In the Ae-horizon, for example, 35%, 30% and 12% of total Pb, respectively, is associated with the exchangeable, labile organic matter and amorphous Fe-Mn oxides fractions. The distribution of Pb and Cr in the studied forest soils mainly reflects progressive contamination of the watershed by anthropogenic atmospheric sources. The anthropogenic source is indicated by elevated Cr and Pb concentrations in the topsoil (Bhf and Ae) horizons and by strong negative correlation between {sup 206}Pb/{sup 207}Pb ratios and total Pb concentrations. According to these isotopic values, penetration of anthropogenic Pb does not exceed 10 cm in both soil profiles. Below this depth, both Pb concentrations and isotopic ratios remain nearly constant and similar to values observed in pre-anthropogenic sediments from Lake Clair. These values are interpreted as the natural geochemical backgrounds of the watershed. Based on that behaviour, calculated anthropogenic Pb net inputs amounted to between 1.24 and 1.8 g/m{sup 2}.

  3. Using discontinuous wave-cut terraces to reconstruct the history of former glacial lake levels: the example of Lake Ojibway in NW Quebec (Canada) (United States)

    Daubois, V.; Roy, M.; Veillette, J. J.


    The decay of the southern Laurentide ice sheet maring during the last deglaciation led to the development of Lake Agassiz and Lake Ojibway that covered large areas in the western prairies and in NE Ontario-NW Quebec, respectively. The history of glacial lakes is commonly based on the study of strandlines that generally consist of sandy beaches (and near-shore facies) or boulder ridges. However, the use of this approach is limited in the main Ojibway basin where the surficial geology consists predominantly of thick accumulation of fine-grained glaciolacustrine deposits that mask most deglacial landforms and the underlying bedrock. Nonetheless, earlier mapping programs in this flat-lying clay plain revealed a complex sequence of discontinuous small-scale cliffs that are made of Ojibway rhythmites. These terrace-like features range in size from 4 to 7 m in height and can generally be followed for 10 to 100's of meters, and sometimes for several kms. These small-scale features are interpreted to represent raised shorelines that were cut into glaciolacustrine sediments by lakeshore erosional processes (i.e., wave action). These so-called wave-cut benches (WCBs) occur at elevations ranging mostly from 3 to 30 m above the present level of Lake Abitibi (267 m), one of the lowest landmarks in the area. Here we evaluate the feasibility of using this type of shorelines to constrain the evolution of Ojibway lake levels in NW Quebec. For this purpose, a series of wave-cut terraces (WCBs) were measured along two north-south transects of about 40 km in length in the Lake Abitibi region. The absolute elevation of more than 70 WCBs was determined with a Digital Video Plotter software package using 1:15K air-photos, coupled with precise measurements (x,y,z coordinates) of control points, which were measured with a high-precision Global Navigation Satellite System tied up to known geodesic survey markers. Preliminary results suggest that Lake Ojibway experienced at least three

  4. Using diatom assemblages and sulphur in sediments to uncover the effects of historical mining on Lake Arnoux (Quebec, Canada: A retrospective of economic benefits versus environmental debt

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    Paul Brian Hamilton


    Full Text Available Monitoring changes in environmental conditions is increasingly important as the Canadian economic infrastructure ramps up exploration and mining development in the more inaccessible northern regions of Canada. Governments are concurrently assessing effects from past mining activities and absorbing the economic cost to society with on-going remediation and monitoring initiatives. The abandoned Aldermac mine in northwestern Quebec, mined from 1932–1943, is an excellent case study for assessing the state of environmental and economic effects of past mining operations. A paleolimnological approach, using diatoms as environmental proxies, was used to evaluate the spatial and temporal impacts on aquatic receiving environments. Based on the inferences drawn from diatom assemblages in Lake Arnoux, prior to mining activity, lake water pH was similar to that of surrounding lakes (circumneutral to weakly acidic. After mining operations terminated, changes in pH and alkalinity in Lake Arnoux coincided with distinct increases in sediment sulphur content. Across a 30- to 40-year span (circa 1940 to 1970s a significant decline in phytoplankton flora coincided with lake acidification and increased clarity of the water column. This resulted in an increase in the benthic diatom population (>90%, replacing the planktonic diatoms. Observed shifts in environmental proxies are concurrent with one, and possibly two, reported tailings pond breaches at the abandoned mine site. Adverse effects of the abandoned Aldermac mine on nearby ecosystems, combined with pressure from local citizens and environmental groups, forced responsible accountability for site restoration led by the Quebec government. Based on the historical period of economic growth, the financial benefits of the Aldermac mine were significant and justify the current pay-it-backward costs for environmental remediation. However, it has now been documented that the pay-it-backward model is not sustainable in

  5. French in Quebec. (United States)

    d'Anglejan, Alison


    Discusses language legislation in Canada where French and English are both official languages, and in Quebec province where French has been declared the sole official language. Outlines the conflicts and the impact of these differing laws on Quebec, its population, and its relations with the rest of Canada. (JMF)

  6. Doyon report clears Quebec NUGs

    Energy Technology Data Exchange (ETDEWEB)

    McArthur, D.; Salaff, S.


    In mid-1995 the Parti Quebecois, then in opposition, claimed evidence of influence peddling, international drug money laundering, kickbacks and fraud in Quebec`s independent power program. It also claimed evidence of irregularities at Hydro-Quebec in its procedures for approving hydropower projects. The Liberal Quebec government of the day ordered a public inquiry, led by Quebec superior court judge Francois Doyon. He submitted the Commission`s final report in April 1997. The report exonerated Hydro-Quebec and the province`s independent power industry of any criminal wrong doing regarding their respect for legal and regulatory directives and the `ethical norms and practices` of sound business management. In its 600-plus page report, the Doyon Commission found that while there was a certain lack of administrative rigor which allowed certain Hydro-Quebec executives to put themselves in questionable conflict-of-interest situations, their actions were not illegal. The current Parti Quebecois Government accepted the report and its recommendation concerning tightening conflict-of-interest guidelines. The current Liberal opposition in the National Assembly charged that the conclusions of the Commission were a foregone conclusion since the demand for the inquiry was politically motivated right from the beginning.

  7. Anorthosite Magma Revisited: Field and Petrographic Evidence From the CRUML Belt, Grenville Province, Quebec (United States)

    Dymek, R. F.


    . Independent evidence for the presence of water in the evolution of the CRUML-belt plutons is provided by the widespread occurrence of biotite. Extensive reverse zoning in many individual plag crystals also can be explained by the involvement of water. The presence of identical features elsewhere in Quebec (e.g., in the Allard Lake massif) confirms that they are not unique to anorthosites of the CRUML belt, and may be more widespread than realized. The present author concludes, reluctantly, that the anorthosite dikes do not represent magma in the traditional sense but rather correspond to cumulate materials mobilized in the presence of an aqueous grain-boundary film. In this scenario, the dynamic environment of the upward-moving magmatic diapir caused expulsion of the putative aqueous fluid, forcing it into zones that led to "hyrofracturing" of the LA concomitant with dike emplacement.

  8. Teaching EFL in a Unilingual Quebec. (United States)

    Schecter, Sandra


    Reviews the history of language legislation in Quebec, specifically regarding the relationship between French and English. It is suggested that English be taught as a "foreign" rather than a "second" language in Quebec. (AM)

  9. Libraries in Quebec: MedlinePlus (United States)

    ... this page: Libraries in Quebec To use the sharing features on ... ext. 82052 Montreal Jewish General Hospital Health Sciences Library (QMJG) 3755 Cote St. Catherine Road Pav. A- ...

  10. New Quebec renewable energy organization

    Energy Technology Data Exchange (ETDEWEB)

    McArthur, D.; Salaff, S.


    The recent formation of the Quebec Association for the Production of Renewable Energy (l`Association quebecoise de la production d`energie renouvelable - AQPER) was announced. The Association is becoming the centre of the Quebec private electricity generation industry. By communicating the industry`s message to the public the organization gives much needed visibility to renewable resources, new forms of energy and sustainable development. The new group is an outgrowth of the former Quebec Association of Private Hydroelectricity Producers. In its new reincarnation, the organization represents all forms of renewables, small and medium hydro, wind, solar, forest and agricultural biomass and urban waste. With deregulation of the electricity market, specifically the creation of the Regie de l`energie` in Quebec, the wider role is a welcome boost for renewable energy development in the province. In one of its first actions the AQPER recommended that all hydroelectric sites up to 50 MW be reserved for development exclusively by the private sector, in conformity with the Quebec energy policy announced in 1996.

  11. Anglo Constituency in Quebec Has New Hero, Direction, Force. Quebec Report. (United States)

    Kelebay, Yarema Gregory


    Provides a pithy, gossipy update on the political machinations concerning bilingualism and related issues in the French Canadian province of Quebec. Examines the activities of the Quebec Political Action Committee, formed to defend English-language rights and resist the separatists. Briefly reviews recent educational legislation in Quebec. (MJP)

  12. The Real Face of Separatism. Quebec Report. (United States)

    Kelebay, Yarema Gregory


    Provides an update on the continuing debate over separatism for the Canadian province of Quebec. Briefly profiles "La Patente," a group that eventually became the organizational core of the separatist movement. Maintains that the separatist movement is a well-organized minority that doesn't reflect the majority opinion in Quebec. (MJP)

  13. Language Policies and Independence Policies in Quebec. (United States)

    O'Donnell, Paul E.


    Overviews 20 years of language planning in Quebec and examines the effect of the province's institutional instability on the economy, language planning, and relations between ethnolinguistic groups. Elucidates the causes of Quebec's efforts to preserve its language and culture and concludes that the province needs its Anglophone population for the…

  14. [Psychotherapy: Legally recognized in Quebec]. (United States)

    Trudeau, Jean-Bernard; Desjardins, Pierre; Dion, Alain


    Until recently, Quebec was the first to have regulated the practice of psychotherapy through law adopted in 2009. The law emerged following 30 years of efforts and inter-professional discussions that led to a consensus by an expert committee presided by Dr Jean-Bernard Trudeau in 2005. In this essay, Dr Jean-Bernard Trudeau, general practitioner, and two psychiatrist and psychologist colleagues, who have participated to the expert committee or have been involved more recently in the implementation of law no 21 in Quebec, relate the main landmarks and moments in the regulation of the practice in psychotherapy following this inter-professional consensus that was translated in the law 21. They relate particularly the last ten years that have led to the adoption of law 21 in 2009, following two parliamentary commission after the Trudeau report. They underline how the practice of psychotherapy is integrated in the professional system and submitted to strict regulation. It includes regulations for obtaining the license of psychotherapist and for maintaining competence. Guidelines emerging from continuous inter-professional discussions for the application of the law and of its regulation in the public and private sectors are produced by the Quebec Professions Office. The definition of psychotherapy that was reached by consensus is not limited to the treatment of mental disorders and is distinguished from other intervention in the area of human relations. Continuous training is mandatory and is implemented on one hand by the Order of the psychologists for the psychologists and other professionals practicing psychotherapy and on the other hand the College of physicians for physician practicing psychotherapy. The authors finally described the interdisciplinary advisory council for the practice of psychotherapy that the legislator has foreseen as an external mechanism to insure the conformity of regulation with the spirit of the law and to give opinions to the various

  15. Shakespearean dramaturgies in Quebec Shakespearean dramaturgies in Quebec

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    Lois Sherlow


    Full Text Available “It is just this which characterizes translation: the fact that it must be perpetually redone. I feel it to be an image of Art itself, of theatrical Art, which is the art of infinite variety. Everything must be played again and again, everything must be taken up and retranslated.” An Interview with Antoine Vitez, “The Duty to Translate.” Since 1980, the theatre of the province of Quebec has been in thegrip of a passion for Shakespeare. During this period, Shakespeare’s texts have often been retranslated and have also been vehicles for radical challenges to theatrical conventions. Best known among these experiments internationally are the productions of director Robert Lepage, among them his Shakespeare cycle (Coriolan, Macbeth, La Tempête performed in Mauberge, France (1992, Japanese versions of Macbeth and The Tempest staged in Tokyo (1993, and, above all, his A Midsummer Night’s Dream (with its infamous ‘mudwrestling’ scenes at the National Theatre, London (1993. “It is just this which characterizes translation: the fact that it must be perpetually redone. I feel it to be an image of Art itself, of theatrical Art, which is the art of infinite variety. Everything must be played again and again, everything must be taken up and retranslated.” An Interview with Antoine Vitez, “The Duty to Translate.” Since 1980, the theatre of the province of Quebec has been in thegrip of a passion for Shakespeare. During this period, Shakespeare’s texts have often been retranslated and have also been vehicles for radical challenges to theatrical conventions. Best known among these experiments internationally are the productions of director Robert Lepage, among them his Shakespeare cycle (Coriolan, Macbeth, La Tempête performed in Mauberge, France (1992, Japanese versions of Macbeth and The Tempest staged in Tokyo (1993, and, above all, his A Midsummer Night’s Dream (with its infamous ‘mudwrestling’ scenes

  16. Hydro-Quebec; other times, other challenges; Hydro-Quebec; autres temps, autres defis

    Energy Technology Data Exchange (ETDEWEB)

    Belanger, Y.; Comeau, R.


    This book provides an overview of the past history and expected future development of Hydro-Quebec through a series of papers presented at a conference in Montreal in 1994. The papers focus on six principal themes: (1) fifty years of history and symbolism, (2) stakes and future choices,(3) economic development and innovation, (4) Quebec northern policy, (5) energy choices and the environment, and (6) the issue of privatizing Hydro-Quebec. The intimate relationship of Hydro-Quebec, long perceived as the major pillar of the economic development of Quebec, and fundamental to the evolution of the idea of a Quebec nation, were also explored. Although the historical approach was clearly preferred by most of the contributors, the uncertain future of the giant utility in the face of the continent-wide movement towards competition and open access, received the bulk of the attention. The special complications introduced by the resistance to hydroelectric power development of Quebec`s native population, environmental concerns, and the quest for sustainable development, also have been treated extensively. refs., tabs., figs.

  17. A Political History of Public Libraries in Quebec (Bibliotheques Municipales au Quebec). (United States)

    Kuntz, Patricia S.

    In the province of Quebec, the role of language and religion has been a significant feature in defining nationality, educating the young, and building infrastructures such as libraries. In contrast to English-Canadian provinces, only after 1960 did the government of Quebec authorize public support for public libraries to serve its francophone…

  18. Diglossie au Quebec, limites et tendances actuelles (Diglossia in Quebec, Its Limits and Tendencies) (United States)

    Chantefort, Pierre


    This article shows that the language situation in Quebec cannot be characterized as a diglossic one (as defined by Ferguson) because of the links existing between Standard Canadian French and "joual." Due to political factors, Quebec is moving toward a mixed standard language. (Text is in French.) (CDSH/CLK)

  19. Mergers and integrated care: the Quebec experience

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    Louis Demers


    Full Text Available As a researcher, I have studied the efforts to increase the integration of health and social services in Quebec, as well as the mergers in the Quebec healthcare system. These mergers have often been presented as a necessary transition to break down the silos that compartmentalize the services dispensed by various organisations. A review of the studies about mergers and integrated care projects in the Quebec healthcare system, since its inception, show that mergers cannot facilitate integrated care unless they are desired and represent for all of the actors involved an appropriate way to deal with service organisation problems. Otherwise, mergers impede integrated care by creating increased bureaucratisation and standardisation and by triggering conflicts and mistrust among the staff of the merged organisations. It is then preferable to let local actors select the most appropriate organisational integration model for their specific context and offer them resources and incentives to cooperate.

  20. English as a Minority Language in Quebec (United States)

    Boberg, Charles


    The variety of English spoken by about half a million people in the Canadian province of Quebec is a minority language in intensive contact with French, the local majority language. This unusual contact situation has produced a unique variety of English which displays many instances of French influence that distinguish it from other types of…

  1. Perspectives on Adult Education in Quebec (United States)

    Hrimech, Mohamed


    Canada is an officially bilingual (English and French) country, but for the most part, English and French people live in different areas of the country. Quebec's official language is French, although it has a large English-speaking community, especially in Montreal. The United States does not have an official second language, but adult education…

  2. Education and Society in Quebec in the 1970's (United States)

    Magnuson, Roger


    Education in Quebec in the 1970's is being staged against the backdrop of the language question, which may be expressed as the desire of the French Canadians to promote the use of their language. The growing importance of language in Quebec is considered. (Editor/RK)

  3. Role of the Media in the Quebec Language Portfolio. (United States)

    Kirkwold, Lorne O.

    In the Province of Quebec, and in particular on the island of Montreal, large communities of the French-speaking Quebecois majority and the English-speaking Quebecker minority have historically co-inhabited peacefully. There is, nonetheless, an ebb and flow in the conflict between the two languages. In recent years, the Government of Quebec has…

  4. Respiratory nematodiases in raptors in Quebec. (United States)

    Lavoie, M; Mikaelian, I; Sterner, M; Villeneuve, A; Fitzgerald, G; McLaughlin, J D; Lair, S; Martineau, D


    This is a retrospective study on wild raptors submitted to the Université de Montréal (Quebec, Canada) from 1989 to 1996. Cyathostoma spp. (Nematoda: Syngamidae) adults and/or eggs were found in air sacs, lungs, bronchi, and trachea of 12 raptors (Falconiformes and Strigiformes) from Quebec, Canada, belonging to eight different species, five of which are first host records for this parasite: barred owl (Strix varia), snowy owl (Nyctea scandiaca), northern harrier (Circus cyaneus), northern goshawk (Accipiter gentilis), and broad-winged hawk (Buteo platypterus). The infection was considered fatal in four birds, while no significant clinical signs were observed in the other cases. Major pathologic changes included diffuse pyogranulomatous air sacculitis, pneumonia, and bronchitis. A few unidentified larval nematodes embedded in a granuloma were found in the lungs of an additional Coopers' hawk (Accipiter cooperii); they were not considered clinically significant. A dead nematode, surrounded by necrotic inflammatory cells, was found in the air sac of a northern goshawk. The presence of nematodes in air sacs or lungs should be considered in wild raptors demonstrating respiratory problems.

  5. Quebec's ice storm '98: "all cards wild, all rules broken" in Quebec's shell-shocked hospitals. (United States)

    Hamilton, J


    The remarkable ice storm that brought life to a standstill in most of Eastern Ontario and Quebec in January had a huge impact on medical services. Hospitals that lost power found themselves serving as shelters not only for patients but also for staff members and nearby residents. Doctors' offices were forced to close and a large number of operations were cancelled. The 2 articles that follow detail the huge impact the "ice storm of the century" had on health care.

  6. Quebec's Ice Storm '98: "all cards wild, all rules broken" in Quebec's shell-shocked hospitals


    Hamilton, J.


    The remarkable ice storm that brought life to a standstill in most of Eastern Ontario and Quebec in January had a huge impact on medical services. Hospitals that lost power found themselves serving as shelters not only for patients but also for staff members and nearby residents. Doctors' offices were forced to close and a large number of operations were cancelled. The 2 articles that follow detail the huge impact the "ice storm of the century" had on health care.

  7. Las incubadoras de las empresas de Quebec

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    Bernardo Parra Restrepo


    Full Text Available Este articulo contiene información de las incubadoras de empresas especialmente aquellas encontradas en Quebec. A través de los 80's, el concepto de incubadoras de empresas fue introducido en América por expertos en el desarrollo económico. Sus metas fueron el estudio de los efectos del desempleo resultante de la quiebra de plantas industriales o del uso del proceso de producción automático por parte de las grandes compañías. Además se esperaba crear empleo para los inmigrantes. El campo más prometedor de estas experiencias se encuentra en el desarrollo de alta tecnología industrial, especialmente en electrónica, microprocesadores y software para sistemas de computación. Esta área también cubre las industrias innovadoras.

  8. [Hydro-Quebec]: Financial profile, 1998--2001

    Energy Technology Data Exchange (ETDEWEB)


    Financial information in this publication includes some retrospective data back as far as 1994 as well as some forecasts to 2001. Information is provided on Hydro-Quebec operation (such as electricity sold, numbers of accounts, and installed capacity), comparative data from other North American electric utilities, world electricity prices, Hydro-Quebec rate increases, provincial economic parameters, Hydro-Quebec gross investment, income, revenue, electricity sales outside Quebec, expenditure, financial expenses, credit ratings and financial ratios, needs and sources of financing, debt by repayment currency, interest rates, comparative average cost of debt, average maturity of debt, total debt, and financing programs. Management discussion is also included with respect to the utility's economic performance, system reliability, and integrated management of business risks.

  9. Quebec: A Unique North American ESL Teaching Experience. (United States)

    Lord, Jacquelyn


    Focuses on teaching English as a Second Language (ESL) in Quebec at the elementary and secondary levels. Highlights the educational system and second language requirements, educational reform, and professionals and parents advancing ESL instruction. (Author/VWL)

  10. Waterfowl breeding pair survey: Ontario, Quebec, and New York: 1997 (United States)

    US Fish and Wildlife Service, Department of the Interior — This report summarizes the Waterfowl Breeding Population and Habitat Survey for Ontario, Quebec, and New York during 1997. The primary purpose of the survey is to...

  11. Nutrient signature of Quebec (Canada cranberry (Vaccinium macrocarpon Ait.

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    Sébastien Marchand


    Full Text Available Fertilizer recommendations for cranberry crops are guided by plant and soil tests. However, critical tissue concentration ranges used for diagnostic purposes are inherently biased by nutrient interactions and physiological age. Compositional data analysis using isometric log ratios (ilr of nutrients as well as time detrending can avoid numerical biases. The objective was to derive unbiased nutrient signature standards for cranberry in Quebec and compare those standards to literature data. Field trials were conducted during 3 consecutive years with varying P treatments at six commercial sites in Quebec. Leaf tissues were analyzed for N, P, K, Ca, Mg, B, Cu, Zn, Mn and Fe. The analytical results were transformed into ilr nutrient balances of parts and groups of parts. High-yield reference ilr values were computed for cranberry yielding greater than 35 Mg ha-1. Many cranberry fields appeared to be over-supplied with K and either under-supplied with Mn or over-supplied with Fe as shown by their imbalanced [K | Ca, Mg] and [Mn | Fe] ratios. Nutrient concentration ranges from Maine and Wisconsin, USA, were combined into ilr values to generate ranges of balances. It was found that these nutrient ranges were much too broad for application in Quebec or outside the Quebec ranges for the [Ca | Mg] and the [Mn | Fe] balances, that were lower compared to those of high yielding cranberry crops in Quebec.

  12. Quebec energy development in a sustainable development context; Le developpement energetique du Quebec dans un contexte de developpement durable

    Energy Technology Data Exchange (ETDEWEB)

    Laplatte, Benjamin; Bourque, Francis; Granger, Francois P.


    Quebec is a net importer of oil and it is clear that the reduction of its dependence with regards to hydrocarbons must be a main preoccupation. Moreover, the energy consumption per habitant of Quebec is higher than that of the majority of the other developed countries. This analysis looks at the choice on offer to the society of the province of Quebec, in terms of energy resources and technologies of today and tomorrow, in a context of sustainable development. [French] Le Quebec est un importateur net de petrole et il est clair que la reduction de sa dependance a l'egard des hydrocarbures doit etre une preoccupation de premier plan. De plus, la consommation energetique par habitant du Quebec est plus elevee que celle de la majorite des autres pays developpes. La presente analyse adresse les choix qui s'offrent a la societe quebecoise, en matiere de ressources et de technologies de l'energie d'aujourd'hui et de demain, dans un contexte de developpement durable.

  13. The Practice of School Psychology in Quebec English Schools: Current Challenges and Opportunities (United States)

    Finn, Cindy A.


    In Quebec, school psychology is alive and well. This article outlines current challenges and opportunities related to the practice of psychology in Quebec English schools. Changes to the practice of psychology in Quebec over the last decade have had an impact on the delivery of psychological services in schools. Modifications of the admission…

  14. Net greenhouse gas emissions at Eastmain-1 reservoir, Quebec, Canada

    Energy Technology Data Exchange (ETDEWEB)

    Tremblay, Alain; Bastien, Julie; Bonneville, Marie-Claude; del Giorgio, Paul; Demarty, Maud; Garneau, Michelle; Helie, Jean-Francois; Pelletier, Luc; Prairie, Yves; Roulet, Nigel; Strachan, Ian; Teodoru, Cristian


    The growing concern regarding the long-term contribution of freshwater reservoirs to atmospheric greenhouse gases (GHG), led Hydro-Quebec, to study net GHG emissions from Eastmain 1 reservoir, which are the emissions related to the creation of a reservoir minus those that would have been emitted or absorbed by the natural systems over a 100-year period. This large study was realized in collaboration with University du Quebec a Montreal, McGill University and Environnement IIlimite Inc. This is a world premiere and the net GHG emissions of EM-1 will be presented in details.

  15. Streptococcus suis Meningitis: First Case Reported in Quebec

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    Sophie Michaud


    Full Text Available Very few Streptococcus suis infections in humans have been reported in Canada, although the condition is frequent in pigs. Meningitis, often accompanied by severe hearing loss, is the most common clinical manifestation. The disease is an occupational illness affecting persons in contact with pigs and may be underdiagnosed because of misidentification of the responsible bacterium. Since Quebec is the leading province for swine production in Canada, physicians and microbiologists should be aware of this infection, especially when a streptococcal meningitis is diagnosed in swine workers. The first case of S suis type 2 meningitis reported in Quebec is described.

  16. Early Paleozoic development of the Maine-Quebec boundary Mountains region (United States)

    Gerbi, C.C.; Johnson, S.E.; Aleinikoff, J.N.; Bedard, J.H.; Dunning, G.R.; Fanning, C.M.


    Pre-Silurian bedrock units played key roles in the early Paleozoic history of the Maine-Quebec Appalachians. These units represent peri-Laurentian material whose collision with the craton deformed the Neoproteozoic passive margin and initiated the Appalachian mountain-building cycle. We present new field, petrological, geochronological, and geochemical data to support the following interpretations related to these units. (1) The Boil Mountain Complex and Jim Pond Formation do not represent part of a coherent ophiolite. (2) Gabbro and tonalite of the Boil Mountain Complex intruded the Chain Lakes massif at ca. 477 Ma. (3) The Skinner pluton, an arc-related granodiorite, intruded the Chain Lakes massif at ca. 472 Ma. (4) The Attean pluton, with a reconfirmed age of ca. 443 Ma, is unrelated to Early Ordovician orogenesis. (5) The most likely timing for the juxtaposition of the Jim Pond Formation and the Boil Mountain Complex was during regional Devonian deformation. These interpretations suggest that the Boundary Mountains were once part of a series of arcs extending at least from central New England through Newfoundland. ?? 2006 NRC Canada.

  17. Assessing the cause of impacts on benthic organisms near Rouyn-Noranda, Quebec

    Energy Technology Data Exchange (ETDEWEB)

    Borgmann, U.; Nowierski, M.; Grapentine, L.C.; Dixon, D.G


    Sediments from lakes near Rouyn-Noranda, Quebec, contain elevated concentrations of several metals, including Cd, Cu, Pb and Zn. Amphipods, fingernail clams, mayflies and tanytarsid midges were absent, and sediment toxicity was observed in chronic tests with Hyalella in sediments from Lac Dufault, the lake closest to Rouyn-Noranda. Bioaccumulation by Hyalella demonstrated elevated bioavailability of Cd, Co, Cr, Pb and Tl, but only Cd was accumulated to levels close to the toxic threshold. Copper, which is regulated by Hyalella, was not elevated in these amphipods, but it was elevated in overlying water in the toxicity tests. Toxic effects in Lac Dufault sediments are probably caused primarily by Cd, at least in amphipods, with a possible minor contribution from Cu. An integrated assessment, including sediment chemistry, benthic community composition, sediment toxicity, metal bioaccumulation in benthos, and comparison of bioaccumulation and/or overlying water concentrations with threshold effect concentrations, provides the best indication of effects and their cause. - Metal bioaccumulation and metals in overlying water during toxicity tests help identify the cause of sediment toxicity and reduced benthic biodiversity.

  18. Evidence of late glacial paleoseismicity from submarine landslide deposits within Lac Dasserat, northwestern Quebec, Canada (United States)

    Brooks, Gregory R.


    An integrated seismo- and chronostratigraphic investigation at Lac Dasserat, northwestern Quebec, identified 74 separate failures within eight event horizons. Horizons E and B, and H and G have strong or moderately-strong multi-landslide signatures, respectively, composed of 11-23 failures, while horizons F, D, C, and A have minor landslide signatures consisting of a single or pair of deposit(s). Cores collected at six sites recovered glacial Lake Ojibway varve deposits that are interbedded with the event horizons. The correlation of the varves to the regional Timiskaming varve series allowed varve ages or ranges of varve ages to be determined for the event horizons. Horizons H, G, E, and B are interpreted to be evidence of paleoearthquakes with differing levels of interpretative confidence, based on the relative strength of the multi-landslide signatures, the correlation to other disturbed deposits of similar age in the region, and the lack or possibility of alternative aseismic mechanisms. The four interpreted paleoearthquakes occurred between 9770 ± 200 and 8470 ± 200 cal yr BP, when glacial Lake Ojibway was impounded behind the Laurentide Ice Sheet during deglaciation. They probably represent an elevated period of seismicity at deglaciation that was driven by crustal unloading.

  19. Progress at the La Grande complex phase II in Quebec

    Energy Technology Data Exchange (ETDEWEB)

    Levay, J.; Caron, O.; Parent, L. (Societe d' Energie de la Baie James (SEBJ), Montreal (Canada))


    Phase II of the La Grande complex in Quebec, Canada, is now under construction (see Water Power and Dam Construction January 1990 and Handbook 1993). This article gives an update on progress at the schemes that comprise the major elements of Phase II. (author)

  20. An Innovative Program for Primary ESL Students in Quebec. (United States)

    Lightbown, Patsy M.; Spada, Nina


    This article describes the context and conditions of English-as-a-Second-Language (ESL) programs in Quebec's French-language schools and reports on several studies of the intensive ESL classes used in some elementary schools. Research on these programs demonstrates their effectiveness in fostering English language skills and positive attitudes…

  1. Patterns of Perceived Language Ability and Use in Arctic Quebec. (United States)

    Taylor, Donald M.; Caron, M.; McAlpine, L.


    Focuses on mothers of school children living in small isolated communities in arctic Quebec. Patterns of perceived language ability and use in three languages, Inuttitut, English, and French, for both themselves and their children were examined. The pattern of perceived language ability was similar across the three languages. Results are discussed…

  2. Educational Reform and the English Schools of Quebec. (United States)

    Freeland, Elaine


    Traces the context in which the minority English-language community in Quebec is coming together to take ownership of the reforms in its schools. Provides a glimpse of the English-speaking community and focuses on the Linguistic Boards, school governance, and curriculum reform. Discusses the context and model of implementation for reforms in…

  3. Multilingual Codeswitching in Quebec Rap: Poetry, Pragmatics and Performativity (United States)

    Sarkar, Mela; Winer, Lise


    Quebec rap lyrics stand out on the world Hip-Hop scene by virtue of the ease and rapidity with which performers in this multilingual, multiethnic youth community codeswitch, frequently among three or more languages or language varieties (usually over a French and/or English base) in the same song. We construct a framework for understanding…

  4. Interdisciplinarity in Quebec Schools: 40 Years of Problematic Implementation (United States)

    Lenoir, Yves; Hasni, Abelkrim


    This article presents a portrait of interdisciplinarity in the Quebec school system. Following a contextual overview of this system, including its sociohistorical evolution and current organization in order to define the problem of interdisciplinarity, a second section, beginning with a clarification of terms related to interdisciplinarity,…

  5. An Analysis of Direct Reciprocal Borrowing among Quebec University Libraries (United States)

    Duy, Joanna C.; Lariviere, Vincent


    An analysis of Quebec academic libraries' direct reciprocal borrowing statistics from 2005 to 2010 reveals that the physical distance separating universities plays an important role in determining the amount of direct reciprocal borrowing activity conducted between institutions. Significant statistical correlations were also seen between the…

  6. Sweeping changes at Hydro-Quebec : the new electricity market

    Energy Technology Data Exchange (ETDEWEB)

    Carpentier, J-M.


    Recent changes in the organization and policies of Hydro-Quebec, which could place the utility giant in front and centre of a possible North American energy common market, are discussed. In this context, the discussion covers the development of the La Grange hydroelectric development in the 1970s and 1980s, the subsequent signing of long-term export contracts with large power grids in the United States, and the more recent developments in opening up of electricity markets. Some implications of these changes, such as the marketing of electricity on electronic stock exchanges at prices that move in step with supply and demand (spot pricing), the establishment of separate generating, transmission and distribution divisions, and the introduction of new operating procedures designed to satisfy the new rules of reciprocity between liberalized electricity markets, are also described. As part of this new set of marketing tools Hydro-Quebec is planning to construct a $185-million power line between Connecticut and Long Island through its subsidiary, TransEnergy US, to boost transmission capacity, which will be allocated by secondary transmission rights. These rights can be sold and traded in financial markets, the first such undertaking in the United States. Unlimited access to US markets for Hydro-Quebec will be also facilitated by Bill 116, enacted by the Quebec Legislature in June 2000, which will give US utilities access to the Quebec wholesale market. These, and other changes of similar magnitude will radically change the energy supply landscape and open up the electricity market in the province to the outside world more than ever in the past. 5 photos.

  7. Les droits linguistiques et scolaires au Quebec et au Canada (Linguistic and Educational Rights in Quebec and Canada). (United States)

    Tetley, William

    A review of the language laws and conventions in Canada and the province of Quebec focuses on: Canadian constitutional law concerning education and language, including the 1867 constitution, the 1960 declaration of linguistic rights, and a 1969 law on official languages; the language of government and instruction in Manitoba; language usage in the…

  8. Crash Rates of Quebec Drivers with Medical Conditions


    Dow, Jamie; Gaudet, Michel; Turmel, Émilie


    Using a databank that combines comprehensive medical data with the driving records of 96% of the drivers in Quebec, odds ratios were calculated for crash risk involving death or serious injury according to the diagnosis of medical conditions traditionally associated with increased crash risk. Results were controlled for age, sex, residence (rural/urban), possession of a professional licence (classes 1 – 4), previous involvement in a crash with injury or death and for the presence of other med...

  9. The La Grande hydroelectric development - James Bay, Quebec

    Energy Technology Data Exchange (ETDEWEB)

    Pare, J-J.; Levay, J.


    An historical overview of the James Bay Hydroelectric Power Development in northern Quebec was provided. The account touches upon the foundation of the Societe d`energie de la Baie James, a wholly-owned subsidiary of Hydro-Quebec. It describes the La Grande Complex, and provides a brief summary of the site investigation, the geological and geotechnical considerations, the rock excavation, the construction of embankments and dikes, and nature of the bedrock and overburden foundations. Some of the more interesting problems that arose during the construction such as the settling of the crest in the protective islands surrounding the instruments at some of the dam sites were outlined. Leakage under some of the La Grande 3 low head dikes near the end of the reservoir filling period and the degradation of some of the riprap protection of the Phase One embankments were also described. The solutions designed to overcome these problems were also part of the account of this major mega development project that promoted Quebec into the ranks of the major hydro energy producers in North America. 11 refs., 2 tabs., 3 figs., photos.

  10. Strategies for the development of Quebec`s petrochemical industry: education and environment

    Energy Technology Data Exchange (ETDEWEB)

    O`Connor, J.A. [Canadian Chemical Producer`s Association (Canada)


    One of the key challenges not only for the Quebec but for the Canadian petrochemical industry will be the challenge to increase the number of students pursuing science or engineering as fields of study. According to this author, there is a crisis in science and technology education in Canada. The ability of Canadian students to compete with their peers around the world is steadily diminishing as a result of the undue emphasis on student attitudes and self-esteem in Canadian schools, as opposed to European and Asian schools which focus on conveying specific skills. He advocates a shift in attitude away from simply more money spent on education towards concern with what and how well students are learning. It was suggested that the educational system must take into account the demands of the market place in fashioning the curricula. If students are to function in the real world where performance is evaluated, the educational system will have to change to reflect the fact that the market and society reward people in proportion to their contribution. The relationship between environmental concern and education was also explored, and the inclusion of environmental issues in the classroom curriculum was recommended. As a topic for curricula, the environment is subject to broad-ranging and often conflicting views regarding its problems and their causes, effects and remedies. Nevertheless, it is not a transient issue to be dismissed as a fad. Rather, it is an issue here to stay, hence it should play a more formalized role at all levels of the curriculum from primary schools to colleges and universities.

  11. The Rio Lajas hydroelectric project in Costa Rica; Hydro-Quebec International gained from its Quebec expertise; La centrale Rio Lajas, au Costa Rica; Hydro-Quebec International a mis a profit l`expertise quebecoise

    Energy Technology Data Exchange (ETDEWEB)

    Cordeau, P.


    The participation of Hydro-Quebec International in the construction and development of the Rio Lajas hydroelectric project in Costa Rica was described. The 10 MW Rio Lajas hydroelectric station in Costa Rica is expected to go into operation in September of 1998. The station is owned by the HRL consortium, which is composed of Hydro-Quebec International and Corporacion Superior. Construction of the station was contracted out to SEH Constructora SA, a company composed of the Costarican contractor Saret and two companies from Quebec; Entreprises Bon Conseil and Hydro-Mecanique. The station comprises two horizontal-axis Francis turbines. Turbines and alternators were respectively supplied by Bouvier and GEC Alsthom, two French manufacturers. Considerable attention was given to the control of the Rio Lajas river, whose discharge can vary by as much as 100 times in the steep volcanic terrains. Approximately 15 Hydro-Quebec employees were delegated to Costa Rica to oversee various stages of the project.

  12. The new national energy story : analysis of Hydro-Quebec's promotional speeches from 1964 to 1997; Le nouveau roman de l'energie nationale : analyse des discours promotionnels d'Hydro-Quebec de 1964 a 1997

    Energy Technology Data Exchange (ETDEWEB)

    Perron, D.


    This book examined the relationship between nationalist speeches in Quebec and the creation of the Crown corporation of Hydro-Quebec. According to the author, Hydro-Quebec has emerged as a cultural phenomenon and as a national identity of the residents of Quebec. The utility enjoys a cultural status that is unique in Canada. Television archives have revealed that public slogans and inaugural speeches empowered the utility to exploit hydroelectricity through a collective political orientation. refs., tabs., figs.

  13. An eastern equine encephalomyelitis (EEE) outbreak in Quebec in the fall of 2008. (United States)

    Chénier, Sonia; Côté, Geneviève; Vanderstock, Johanne; Macieira, Susana; Laperle, Alain; Hélie, Pierre


    Eastern equine encephalomyelitis (EEE) was diagnosed in 19 horses and a flock of emus in the province of Quebec in fall 2008. The EEE virus caused unusual gross lesions in the central nervous system of one horse. This disease is not usually present in Quebec and the relation between the outbreak and favorable environmental conditions that summer are discussed.

  14. Educational Research and Theory in Language Policy: ESL in Quebec Schools. (United States)

    Lightbown, Patsy M.


    Analyzes the social and educational objectives for teaching English as a second language in Quebec schools. Further research is needed about appropriate teaching methods and appropriate ages for beginning instruction. The sociopolitical context of Quebec must be considered to assign highest priority to developing students' native languages. (CB)

  15. No ESL in English Schools: Language Policy in Quebec and Implications for TESL Teacher Education (United States)

    Winer, Lise


    In this article, various aspects of official language policy in Quebec are seen as interacting with contested and contesting ideologies, as experienced by novice teachers in teaching English as a second or other language within the majority French school system. The context of TESL training in Quebec is described, focusing on legislative policy…

  16. Memoir of the energy sector in Quebec : context, issues and questionings; Memoire du secteur energetique au Quebec : contexte, enjeux et questionnements

    Energy Technology Data Exchange (ETDEWEB)



    This document provides a progress report on the directions and means taken by Hydro-Quebec to achieve its goals and fulfill its mission established in its strategic plan according to three areas of activities: distribution, transport and production of electricity. The document examines the safety and effectiveness of renewable energy sources such as hydroelectricity and wind. It discusses projects that are currently under development, advantages of the hydroelectricity, how to maintain the reliability of the grid system; how to ensure the availability and capacity of networks, and risk management connected to hydraulics. It examines Hydro-Quebec's contribution to economic development and creation of value for shareholders including its investment plan, partners and leadership efforts, the beneficial effects of purchasing wind power, safeguarding the competitive position of electricity, growing Quebec's exports of electricity, and how hydroelectricity provides important sources of value creation for shareholders and Hydro-Quebec. 2 figs., tabs., 5 appendices.

  17. Advisory panel on the proposed New Brunswick - Quebec electricity transaction

    Energy Technology Data Exchange (ETDEWEB)

    Ganong, D.A. (comp.) [Ganong Bros. Ltd., St. Stephen, NB (Canada)


    NB Power was faced with major financial and technical challenges in generation that would lead to significant rate increases over several years to come. In 2009, the governments of New Brunswick and Quebec proposed an agreement whereby Hydro-Quebec would acquire most of the assets of NB Power and provide a guaranteed electricity supply at a set price to the province. The proposal involved the sale of NB Power's hydro generation facilities, 2 diesel peaking plants and the Point Lepreau nuclear generating facility. It also included a guaranteed bulk electricity supply of 14 Terawatt-hours per year by Hydro-Quebec at a blended rate of 7.35 cents per kilowatt-hour. The new Brunswick government would retain ownership of the fossil-fuelled power plants, the NB Power transmission assets and the NB Power distribution assets and customer sales. A 6-person independent panel was asked to examine the proposal. This report addresses the proposed agreement as presented to the Panel up to January 26, 2010. The panel conducted an independent and objective examination of the financial implications; long-term effects on electricity rates; New Brunswick's control of energy policies; environmental impacts; short-and long-term risks and avoided risks; and benefits and costs to the provincial economy. The Panel drew its conclusions and recommendations on the basis of available information. The Panel concluded that the benefits to New Brunswick contribute to real and positive value to New Brunswick over business as usual. tabs., figs.

  18. Native American admixture in the Quebec founder population.

    Directory of Open Access Journals (Sweden)

    Claudia Moreau

    Full Text Available For years, studies of founder populations and genetic isolates represented the mainstream of genetic mapping in the effort to target genetic defects causing Mendelian disorders. The genetic homogeneity of such populations as well as relatively homogeneous environmental exposures were also seen as primary advantages in studies of genetic susceptibility loci that underlie complex diseases. European colonization of the St-Lawrence Valley by a small number of settlers, mainly from France, resulted in a founder effect reflected by the appearance of a number of population-specific disease-causing mutations in Quebec. The purported genetic homogeneity of this population was recently challenged by genealogical and genetic analyses. We studied one of the contributing factors to genetic heterogeneity, early Native American admixture that was never investigated in this population before. Consistent admixture estimates, in the order of one per cent, were obtained from genome-wide autosomal data using the ADMIXTURE and HAPMIX software, as well as with the fastIBD software evaluating the degree of the identity-by-descent between Quebec individuals and Native American populations. These genomic results correlated well with the genealogical estimates. Correlations are imperfect most likely because of incomplete records of Native founders' origin in genealogical data. Although the overall degree of admixture is modest, it contributed to the enrichment of the population diversity and to its demographic stratification. Because admixture greatly varies among regions of Quebec and among individuals, it could have significantly affected the homogeneity of the population, which is of importance in mapping studies, especially when rare genetic susceptibility variants are in play.

  19. Optical ground wire for Hydro-Quebec`s telecommunication network

    Energy Technology Data Exchange (ETDEWEB)

    Ghannoum, E.; Chouteau, J.P.; Miron, M.; Yaacoub, S. [Hydro-Quebec, Montreal, Quebec (Canada); Yoshida, K.


    An extensive telecommunication network of 6,000 km of Optical Ground Wire (OPGW) is currently planned by Hydro-Quebec for progressive installation from 1992 to 2004. By 1994, about 1,600 km of OPGW have already been purchased and installed mostly on new 735 kV lines. This document provides information relative to the OPGW selection, characteristics, design, fabrication, and testing. Other sections are devoted to the installation experience, description of current and future R and D OPGW projects, and Authors` biography.

  20. [SURPS French version validation in a Quebec adolescent population]. (United States)

    Castonguay-Jolin, Laura; Perrier-Ménard, Eveline; Castellanos-Ryan, Natalie; Parent, Sophie; Vitaro, Frank; Tremblay, Richard E; Garel, Patricia; Séguin, Jean R; Conrod, Patricia J


    Objective: The Substance Use Risk Profile Scale (SURPS) has been developed to screen personality risk factors for substance misuse. This scale assesses 4 high-risk personality traits using a 23-item, self-report questionnaire. SURPS helps guiding targeted approaches to prevention of substance abuse and misuse. It has been validated in the United Kingdom, English Canada, Sri Lanka, and China. This study aims to validate this scale in a sample of French-speaking adolescents from Quebec as well as its sensitivity in a clinical sample of adolescents. Method: Two hundred two 15-year-old youths from a community sample completed a French version of SURPS as well as other measures of personality and substance use. This study reports the internal consistency and concurrent validity of the scale, as well as a factor analysis of items. Further, 40 youths (mean age 15.7 years) from a clinical population completed SURPS and their scores were compared with those of the community sample. Results: SURPS French translation has good internal consistency and demonstrated a 4-factor structure very similar to the original scale. The 4 subscales show good concurrent validity, and 3 of the subscales were found to correlate with measures of substance use. Finally, 95% of the clinical sample was identified at high risk for substance misuse according to SURPS cut-off scores. Conclusion: SURPS French translation seems to be a valid and sensitive scale that can be used in a French-speaking adolescent population from Quebec.

  1. Protection strategies for drinking groundwater sources in small Quebec municipalities. (United States)

    Sylvestre, Bruno; Rodriguez, Manuel J


    Awareness of groundwater protection has increased substantially in recent decades. In the Province of Quebec, Canada, the Groundwater Catchment Regulation (GWCR) was promulgated in 2002 to protect water quality in public wells. The goal of the present study was to document groundwater protection in the context of emerging regulations and identify factors explaining the propensity of municipalities applying protection strategies. Two types of information were used in this study: data from a questionnaire-based survey conducted among 665 municipalities in the Province of Quebec and complementary information gathered from various sources. Data from the survey revealed that fewer than half of the municipalities have been able to comply with the GWCR, mainly because of financial limitations. Also, close to half of the municipalities have either identified or are expecting land use conflicts to arise between protection areas required by the GWCR and other land usage, with agriculture being the main conflicting activity. Multivariate logistic regression models served to identify factors explaining the likelihood of municipalities to take groundwater protection measures. Those factors were municipality revenue, history of water contamination in distribution systems, land use near wellheads, location of municipalities within a provincial priority watershed and the importance of groundwater use in a region. Results of the study may prove helpful for government authorities in better understanding the groundwater protection issue and in implementing strategies that improve the ability of municipalities to protect groundwater.

  2. Cohort profile: the Quebec Longitudinal Study of Kindergarten Children (QLSKC). (United States)

    Rouquette, Alexandra; Côté, Sylvana M; Pryor, Laura E; Carbonneau, René; Vitaro, Frank; Tremblay, Richard E


    The Quebec Longitudinal Study of Kindergarten Children (QLSKC) is an ongoing population-based prospective longitudinal study presently spanning ages 6-29 years, designed to study the prevalence, risk factors, development and consequences of behavioural and emotional problems during elementary school. Kindergarten boys and girls attending French-speaking public schools in the Canadian province of Quebec during the 1986-87 and 1987-88 school years were included in the cohort: 2000 children representative of the population and 1017 children exhibiting disruptive behaviour problems. To date, 12 waves of data have been collected, and three generations of participants have been involved in the study (i.e. the study child, his parents and the first child of the study child). Information on demographics, psycho-social and lifestyle factors, child and family member characteristics (physical and mental health), and outcomes such as psychiatric diagnoses, delinquency or school diploma were assessed during three important developmental stages (childhood, adolescence and early adulthood). Blood samples were also collected in early adulthood for genetic analyses. Information on publications, available data and access to data can be found on the following website (

  3. Canadian federalism and the Canadian health care program: a comparison of Ontario and Quebec. (United States)

    Palley, H A


    The Quebec and Ontario health insurance and health service delivery systems, developed within the parameters of federal regulations and national financial subsidies, provide generally universal and comprehensive basic hospital and medical benefits and increasingly provide for the delivery of long-term care services. Within a framework of cooperative federalism, the health care systems of Ontario and Quebec have developed uniquely. In terms of vital statistics, the health of Ontario and Quebec residents generally is comparable. In viewing expenditures, Quebec has a more clearly articulated plan for providing accessible services to low-income persons and for integrating health and social services, although it has faced some difficulties in seeking to achieve the latter goal. Its plans for decentralized services are counter-balanced by a strong provincial role in health policy decision-making. Quebec's political culture also allows the province to play a stronger role in hospital planning and in the regulation of physician income than one finds in Ontario. These political dynamics allow Quebec an advantage in control of costs. In Ontario, in spite of some recent setbacks, physician interests and hospital sector interests play a more active role in health system bargaining and are usually able to influence remuneration and resource allocation decisions more than physician interests and hospital sector interests in Quebec.

  4. The visible politics of the privatization debate in Quebec. (United States)

    Contandriopoulos, Damien; Abelson, Julia; Lamarche, Paul; Bohémier, Katia


    This paper analyzes the debates surrounding the privatization of health services financing in Quebec. The objective is to clarify policy-making processes with regard to this important issue and, more generally, to provide a realistic understanding of health-related policy processes in Canada. The analysis is based on a large and continuous sample of mass media and National Assembly debates on the question during the four-and-a-half years following the Chaoulli ruling of the Supreme Court of Canada. These data are used to test four hypotheses about relationships among the types of political actors involved, their policy preferences, the rhetoric they use and the anticipated policy effects they assert. The results are applied to a discussion of questions about the factors that influence the effectiveness of political communication.

  5. Methodology developed to make the Quebec indoor radon potential map. (United States)

    Drolet, Jean-Philippe; Martel, Richard; Poulin, Patrick; Dessau, Jean-Claude


    This paper presents a relevant approach to predict the indoor radon potential based on the combination of the radiogeochemical data and the indoor radon measurements in the Quebec province territory (Canada). The Quebec ministry of health asked for such a map to identify the radon-prone areas to manage the risk for the population related to indoor radon exposure. Three radiogeochemical criteria including (1) equivalent uranium (eU) concentration from airborne surface gamma-ray surveys, (2) uranium concentration measurements in sediments, (3) bedrock and surficial geology were combined with 3082 basement radon concentration measurements to identify the radon-prone areas. It was shown that it is possible to determine thresholds for the three criteria that implied statistically significant different levels of radon potential using Kruskal-Wallis one way analyses of variance by ranks. The three discretized radiogeochemical datasets were combined into a total predicted radon potential that sampled 98% of the studied area. The combination process was also based on Kruskal-Wallis one way ANOVA. Four statistically significant different predicted radon potential levels were created: low, medium, high and very high. Respectively 10 and 13% of the dwellings exceed the Canadian radon guideline of 200 Bq/m(3) in low and medium predicted radon potentials. These proportions rise up to 22 and 45% respectively for high and very high predicted radon potentials. This predictive map of indoor radon potential based on the radiogeochemical data was validated using a map of confirmed radon exposure in homes based on the basement radon measurements. It was shown that the map of predicted radon potential based on the radiogeochemical data was reliable to identify radon-prone areas even in zones where no indoor radon measurement exists.

  6. Problemes et methodes de la lexicographie quebecoise (Problems and Methods of Quebec Lexicography). (United States)

    Cormier, Monique C., Ed.; Francoeur, Aline, Ed.

    Papers on lexicographic research in Quebec (Canada) include: "Indications semantiques dans les dictionnaires bilingues" ("Semantic Indications in Bilingual Dictionaries) (Johanne Blais, Roda P. Roberts); "Definitions predictionnairiques de 'maison, batiment, et pavillon'" ("Pre-dictionary definitions of 'house,…

  7. Lyme Disease: Knowledge and Practices of Family Practitioners in Southern Quebec

    Directory of Open Access Journals (Sweden)

    Cécile Ferrouillet


    Full Text Available BACKGROUND: Public health authorities in Quebec have responded to the progressive emergence of Lyme disease (LD with surveillance activities and education for family physicians (FPs who are key actors in both vigilance and case management.

  8. Experimental waterfowl breeding population survey Maine, the Maritime provinces, and Central Quebec: 1997 (United States)

    US Fish and Wildlife Service, Department of the Interior — This report summarizes the Waterfowl Breeding Population and Habitat Survey for Maine, the Maritime provinces, and Central Quebec during 1997. The primary purpose of...

  9. Management of New Symptoms of Dyspepsia in the Elderly in Quebec

    Directory of Open Access Journals (Sweden)

    Jacques LeLorier


    Full Text Available OBJECTIVE: To use the Régie de l'assurance-maladie du Québec (RAMQ database to study the clinical strategies used by Quebec physicians in the management of dyspepsia in the elderly.

  10. Pilot study: Waterfowl breeding population survey: Ontario, Quebec, and New York: May 1995 (United States)

    US Fish and Wildlife Service, Department of the Interior — This report summarizes the Waterfowl Breeding Population and Habitat Survey for Ontario, Quebec, and New York during 1995. The primary purpose of the survey is to...

  11. Southern Ontario, Quebec, and New York: Waterfowl breeding population survey: 2000 (United States)

    US Fish and Wildlife Service, Department of the Interior — This report summarizes the Waterfowl Breeding Population and Habitat Survey for Southern Ontario, Quebec, and New York during 2000. The primary purpose of the survey...

  12. Waterfowl breeding population survey: New York, Eastern Ontario, and Southern Quebec: 1999 (United States)

    US Fish and Wildlife Service, Department of the Interior — This report summarizes the Waterfowl Breeding Population and Habitat Survey for New York, Eastern Ontario, and Southern Quebec during 1999. The primary purpose of...

  13. Blastomycosis in Quebec (1981–90: Report of 23 Cases and Review of Published Cases from Quebec

    Directory of Open Access Journals (Sweden)

    G St-Germain


    Full Text Available Twenty-three cases of blastomycosis were reported in a survey conducted in the province of Quebec from 1981–90. Thirteen patients resided south of the St Lawrence River and the other 10, north. Two small geographical clusters were apparent in and around the cities of Sherbrooke and Quebec. The male to female ratio was 1.6:1 and the median age was 47 years (range 26 to 77. Lung involvement was observed in 19 cases and was the only site involved in 11. Cutaneous manifestations were reported in 11 cases while bone infection (three cases and central nervous system (CNS infections were also noted. Diagnosis was confirmed by culture in 21 cases and by histopathology in two cases. Of the 21 culture-positive cases, 12 strains of Blastomyces dermatitidis were isolated from lungs, nine from skin, and one each from bone and brain. Serodiagnostic tests by immunodiffusion or complement fixation were positive for only one of the 10 patients known to have been tested. Ten patients were treated with amphotericin B, 11 with ketoconazole, one with fluconazole and eight underwent surgery. While amphotericin B was used in eight of the 10 earliest treated cases, ketoconazole was administered in 10 of the 13 more recent cases. Of the patients for whom follow-up data have been obtained, 21 are reported cured (one of whom was not treated and one patient died of another cause. This survey confirms that blastomycosis is a rare disease in this endemic area and that patterns of therapy are changing.


    Directory of Open Access Journals (Sweden)

    Petre GÂŞTESCU


    Full Text Available Limnology is a border discipline between geography, hydrology and biology, and is also closely connected with other sciences, from it borrows research methods. Physical limnology (the geography of lakes, studies lake biotopes, and biological limnology (the biology of lakes, studies lake biocoenoses. The father of limnology is the Swiss scientist F.A. Forel, the author of a three-volume entitled Le Leman: monographie limnologique (1892-1904, which focuses on the geology physics, chemistry and biology of lakes. He was also author of the first textbook of limnology, Handbuch der Seenkunde: allgemeine Limnologie,(1901. Since both the lake biotope and its biohydrocoenosis make up a single whole, the lake and lakes, respectively, represent the most typical systems in nature. They could be called limnosystems (lacustrine ecosystems, a microcosm in itself, as the American biologist St.A. Forbes put it (1887.

  15. Immigration and cultural policies: a bone of contention between the Province of Quebec and the Canadian federal government. (United States)

    Fontaine, L


    "This article addresses the way in which the Province of Quebec has obtained increasing power in the area of immigration.... Data from interviews with key members of [the Ministry of Immigration] and from selected documents are drawn on to illustrate Quebec's cultural politics. The Quebec position on the question of immigration as it has evolved in the context of immigration policies defined by the federal government in Ottawa is examined.... In particular, the present article considers how attempts to construct a cultural identity and a nation-state in Quebec have had important consequences for immigration policy and for attitudes and policies concerning Quebec's cultural minorities. The emergence of the notion of 'cultural communities' as a result of the constitutional rivalry and the on-going struggle for legitimacy between Quebec and Ottawa is also explored."

  16. Evaluating the SWAT's snow hydrology over a Northern Quebec watershed (United States)

    Troin, M.; Caya, D.


    The snowmelt is an important component of the Soil Water Assessment Tool (SWAT[1]) model's hydrology when applied in snowy watersheds where spring flows are dominated by snow melting. However, little is known about its performance in modeling Nordic environments and its accuracy with respect to operational snowmelt models because most studies were conducted in rainfall-runoff catchments. To fill this gap in SWAT's knowledge, we aim to evaluate its performance for simulating a snowy Nordic catchment streamflow with comparison to the Streamflow Synthesis and Reservoir Regulation (SSARR[2]) model. SSARR is one of the selected operational models by the Snow Hydrology Guide as valuable tool for snowmelt runoff simulation (Ontario Ministry of Natural Resources, 1989). In the Côte Nord region of Quebec, most of the streamflow come from snowmelt in watersheds. Understanding the interactions among snow accumulation, snowmelt and streamflow generation is a challenge for water resources management in Quebec, since this province is the Canada's leader in hydroelectric energy production. The selected snow-covered watershed, namely the Outardes Basin, presents extreme climatic conditions. Few examples of model calibration in this Nordic environment exist because of the scarcity of reliable data. The basin has the interest of being well instrumented providing a comprehensive dataset to implement SWAT over this Nordic watershed. The evaluation indicates that SWAT has a good performance in simulating the daily, monthly, seasonal and annual mean discharges with low volume biases over the calibration and validation periods. The predominantly spring snow-melting generated streamflow is simulated with a good accuracy for both its magnitude and its timing. Seasonal snowpack plays an important role in defining the hydrologic regime where the accumulated snowmelt runoff contributes to 64% of the annual runoff. When we compared SWAT's results to SSARR, comparable performances in

  17. Methodology developed to make the Quebec indoor radon potential map

    Energy Technology Data Exchange (ETDEWEB)

    Drolet, Jean-Philippe, E-mail: [Institut national de la recherche scientifique, Eau Terre Environnement Research Centre (ETE-INRS), 490 de la Couronne, G1K 9A9 Quebec (Canada); Martel, Richard [Institut national de la recherche scientifique, Eau Terre Environnement Research Centre (ETE-INRS), 490 de la Couronne, G1K 9A9 Quebec (Canada); Poulin, Patrick [Institut national de santé publique du Québec (INSPQ), 945 avenue Wolfe, G1V 5B3 Quebec (Canada); Dessau, Jean-Claude [Agence de la santé et des services sociaux des Laurentides, 1000 rue Labelle, J7Z 5 N6 Saint-Jérome (Canada)


    This paper presents a relevant approach to predict the indoor radon potential based on the combination of the radiogeochemical data and the indoor radon measurements in the Quebec province territory (Canada). The Quebec ministry of health asked for such a map to identify the radon-prone areas to manage the risk for the population related to indoor radon exposure. Three radiogeochemical criteria including (1) equivalent uranium (eU) concentration from airborne surface gamma-ray surveys, (2) uranium concentration measurements in sediments, (3) bedrock and surficial geology were combined with 3082 basement radon concentration measurements to identify the radon-prone areas. It was shown that it is possible to determine thresholds for the three criteria that implied statistically significant different levels of radon potential using Kruskal–Wallis one way analyses of variance by ranks. The three discretized radiogeochemical datasets were combined into a total predicted radon potential that sampled 98% of the studied area. The combination process was also based on Kruskal–Wallis one way ANOVA. Four statistically significant different predicted radon potential levels were created: low, medium, high and very high. Respectively 10 and 13% of the dwellings exceed the Canadian radon guideline of 200 Bq/m{sup 3} in low and medium predicted radon potentials. These proportions rise up to 22 and 45% respectively for high and very high predicted radon potentials. This predictive map of indoor radon potential based on the radiogeochemical data was validated using a map of confirmed radon exposure in homes based on the basement radon measurements. It was shown that the map of predicted radon potential based on the radiogeochemical data was reliable to identify radon-prone areas even in zones where no indoor radon measurement exists. - Highlights: • 5 radiogeochemical datasets were used to map the geogenic indoor radon potential. • An indoor radon potential was determined for

  18. Second-Language Education Policy in Quebec: A Critical Analysis of the Policy of English as a Compulsory Subject at the Early Primary Level in Quebec (United States)

    Fallon, Gerald; Rublik, Natalie


    This is a critical policy study of language planning and policy in Quebec regarding the new policy direction requiring the compulsory teaching of English at the early primary level (grades 1-2, Cycle 1) in francophone public schools. Based on the analysis of policy documents, archives, and narratives from interviews, the goal of this policy study…

  19. Strontium isotope characterization of wines from Quebec, Canada. (United States)

    Vinciguerra, Victor; Stevenson, Ross; Pedneault, Karine; Poirier, André; Hélie, Jean-François; Widory, David


    The (87)Sr/(86)Sr isotope ratios were measured on grape, wine and soil samples collected in 13 commercial vineyards located in three major wine producing areas of Quebec (Canada). The soils yield Sr isotope ratios that are intimately related to the local geology and unambiguously discriminate the different producing areas. A strong relationship exists between the (87)Sr/(86)Sr isotope ratios of the wine and the grapes. This suggests that the vinification process does not alter the overall Sr budget. Although the Sr isotope ratios of the grapes do not show a strong correlation with the bulk Sr isotope composition of the soil, they do correlate strongly with the Sr isotope composition contained in the labile fraction of the soil. This indicates that the labile fraction of the soil represents the Sr reservoir available to the plant during its growth. This study demonstrates that the Sr isotope approach can be used as a viable tool in forensic science for investigating the provenance of commercial wines.

  20. Burden of Chickenpox on Families: A Study in Quebec

    Directory of Open Access Journals (Sweden)

    Philippe De Wals


    Full Text Available OBJECTIVE: To estimate the nonhospital costs of treating chickenpox and to ascertain the opinion of parents regarding the usefulness of vaccination. DESIGN: Retrospective postal survey. SETTING: Province of Quebec. PARTICIPANTS: Random sample of 3333 families with children aged six months to 12 years. OUTCOME MEASURES: For cases of chickenpox that occurred between September 1, 1997 and August 31, 1998, the use of health services, time away from school or work, patient care required, direct and indirect costs for the families and the health care system, and the opinion of parents regarding chickenpox and the vaccine were evaluated. RESULTS: The response rate was 64.7%, and 18.8% of households reported a history of chickenpox, a total of 693 cases. A physician was consulted in 45.8% of these cases, and medication was used in 91.7%. The frequency of hospitalizations was 0.6%. Time away from work or school caused by the disease was 4.1 days on average, with 46.5% of absences being attributed to the risk of contagion. The total average cost of a case of chickenpox was $225. Direct expenses for households accounted for 11% of the total cost, public sector direct costs 7%, indirect costs related to absence from work 38% and caregiving time 45%. A majority of parents (70% were in favour of a systematic childhood immunization program. CONCLUSIONS: Chickenpox without complications is disruptive for families, but the direct costs for families and the public sector are relatively small.

  1. REE in the Great Whale River estuary, northwest Quebec (United States)

    Goldstein, Steven J.; Jacobsen, Stein B.


    A report on REE concentrations within the estuary of the Great Whale River in northwest Quebec and in Hudson Bay is given, showing concentrations which are less than those predicted by conservative mixing of seawater and river water, indicating removal of REE from solution. REE removal is rapid, occurring primarily at salinities less than 2 percent and ranges from about 70 percent for light REE to no more than 40 percent for heavy REE. At low salinity, Fe removal is essentially complete. The shape of Fe and REE vs. salinity profiles is not consistent with a simple model of destabilization and coagulation of Fe and REE-bearing colloidal material. A linear relationship between the activity of free ion REE(3+) and pH is consistent with a simple ion-exchange model for REE removal. Surface and subsurface samples of Hudson Bay seawater show high REE and La/Yb concentrations relative to average seawater, with the subsurface sample having a Nd concentration of 100 pmol/kg and an epsilon(Nd) of -29.3; characteristics consistent with river inputs of Hudson Bay. This indicates that rivers draining the Canadian Shield are a major source of nonradiogenic Nd and REE to the Atlantic Ocean.

  2. Canadá-Quebec: identidades problemáticas Canadá-Quebec: identidades problemáticas

    Directory of Open Access Journals (Sweden)

    Eurídice Figueiredo


    Full Text Available O objetivo do presente texto é tentar dimensionar uma velha dicotomia que consiste em conceber o Canadá como uma país bicéfalo:de um lado o “Canadá”, em que se fala inglês, de outro lado o Quebec, em que se fala francês. Esse dualismo simplista se acentuou após a chamada Revolução Tranqüila em 1960 quando a identidade do canadense francês, até então representado como um povo oprimido e humilhado pelo Outro, o inglês, minoria em seu próprio país, se transforma no quebequense moderno e ativo, maioria em seu “Estado”, que detém o poder para definir os rumos de seu destino. Não mais voltado para um passado de derrotas mas projetando-se para um futuro de sucesso. Assim nas duas campanhas para os referendos de 1980 e 1995, afirmava-se a reivindicação pela soberania, para, transnsformando-se em Estado-Nação, se desvencilhar deste Outro incômodo, que o impede de se gerir de forma autônoma.

  3. Proceedings of the 2004 Annual Meeting of the Canadian Mathematics Education Study Group = Actes de la Rencontre Annuelle 2004 du Groupe Canadien d'Etude en Didactique des Mathematiques (28th, Quebec City, Quebec, Canada, May 28-Jun 1, 2004) (United States)

    Simmt, Elaine, Ed.; Davis, Brent, Ed.


    This submission contains the Proceedings of the 2004 Annual Meeting of the Canadian Mathematics Education Study Group (CMESG), held at Universite Laval in Quebec City, Quebec. The CMESG is a group of mathematicians and mathematics educators who meet annually to discuss mathematics education issues at all levels of learning. The aims of the Study…

  4. The Effects of Competition from Private Schooling on French Public School Districts in the Province of Quebec (United States)

    Caldas, Stephen J.; Bernier, Sylvain


    The Province of Quebec subsidizes nearly 50% of private education, and at the same time heavily regulates private schools. To date, no studies have been done to determine the effect of the unique nature of competition from K-12 private schools on public school education of the sort found in Quebec. The authors used multiple regression to determine…

  5. Quebec: employer who disclosed employee's HIV-positive status violated rights to dignity and freedom from discrimination. (United States)

    Kazatchkine, Cécile


    The Quebec human rights tribunal held that an employer who disclosed the HIV-positive status of an employee to his staff violated the employee's right to the safeguard of his dignity, without distinction or exclusion based on disability, contrary to Sections 4 and 10 of the Charter of Human Rights and Freedoms (the Quebec Charter).

  6. Actes des Journees de linguistique (Proceedings of the Linguistics Conference) (13th, Quebec, Canada, March 25-26, 1999). (United States)

    Kavanagh, Eric, Ed.

    Papers on language research in this volume include the following: Pour une comparaison des voyelles nasals du Quebec et du Haut-Jura: observations, methodologie et outils infomatiques (A Comparison of Quebec and Haut-Jura's Nasal Vowels: Observations, Methodologies, and Instrumentation) (Vincent Arnaud and Claude Paradis); Le negociation du sens…

  7. Disease characterization of systemic lupus erythematosus (SLE) patients in Quebec. (United States)

    Ng, R; Bernatsky, S; Rahme, E


    Objective Systemic lupus erythematosus (SLE) is an autoimmune disease characterized by an array of organ manifestations that can appear during flares and disappear during remissions. The objectives of this study were: (i) to examine SLE manifestation groups longitudinally in an SLE cohort; and (ii) to assess the association between early antimalarial treatment and renal manifestations. Methods Seven SLE manifestation groups-cutaneous, hematologic, lung, musculoskeletal, neuropsychiatric, serositis, renal-were tracked using Kaplan-Meier survival curves in an incident SLE cohort from Quebec health administrative data ( n = 2010). A subgroup with provincial drug insurance coverage was followed over time to examine the association between early antimalarial treatment (within three months after SLE diagnosis) and renal manifestations using a Cox proportional hazards survival model. Results Cutaneous manifestations was the most common manifestation at SLE diagnosis (30.0%, 95% CI: 27.7-32.2%). About two-thirds (66.2%, 95% CI: 63.4-68.9%) of patients had evidence of at least one SLE manifestation at diagnosis, which increased to 87.2% (95% CI: 84.2-90.3%) by the end of follow-up. After adjusting for age, sex, early concomitant systemic steroid therapy, Charlson comorbidity index, primary care visits in the year prior and other SLE manifestations at baseline, no statistically significant association was established between antimalarial therapy and renal manifestations. Conclusion This study provides insight regarding organ manifestations within a population-based sample. Most patients identified with SLE had other diagnostic evidence that supports an underlying diagnosis of SLE. No protective effects for antimalarial agents against renal manifestations could be established in this population-based cohort.

  8. Movimiento feminista y economista social en Quebec: paradigmas y prácticas


    Côté, Denyse


    Las mujeres son muy activas en la economía social y solidaria en Quebec tanto en la base de las cooperativas y ONG como en su liderazgo. Sin embargo, las consideraciones relativas a la igualdad de género en estas organizaciones son objeto de un nutrido debate. Se analiza esta problemática a partir de datos de 2000 y 2008 en siete regiones de Quebec. Se plantean tensiones relativas al financiamiento, a las prácticas, y también a la ideología y al discurso -miedo al feminismo, auge de una cultu...

  9. The economic impact of wind industry development in Quebec; Les retombees du developpement de l'industrie eolienne au Quebec

    Energy Technology Data Exchange (ETDEWEB)

    Thibodeau, J.C. [GPCo Inc., Varennes, PQ (Canada)


    The economic impact of current and future development of wind power in Quebec was discussed. Key events were outlined, beginning with Hydro-Quebec's request for bids in 2003 for 1000 MW of wind power development. More than 4000 MW of power were filed under this call, where 8 projects were selected totalling 990 MW. Both direct and indirect economic impacts were attributed to start-up factories in the Gaspe region and elsewhere across the province. Energy capacity was increased in 2006 by 2,500 MW and is expected to reach more than 4,000 MW by 2015. It was noted that since the government of Quebec chose a non-traditional call for tender to support its emerging industry, it is difficult to attach an exact price tof wind energy, as the bid price included economic development costs associated with regional and provincial requirements. The second part of this document addressed the economic impact of wind industry development from 1997 to 2005, and the anticipated development from 2006 to 2015. Although the economic impact of wind energy development was small for the period 1997-2006, it was important for energy development in the Gaspe region, and established the groundwork for future development and the involvement of local wind tower manufacturers, engineering consulting firms, and the growth of local wind-related businesses in the region. It is anticipated that wind energy development will be very significant in terms of job creation. In addition, Quebec universities are dedicating more resources to training skilled turbine personnel and research in leading-edge fields to improve wind turbine design. It is estimated that $10 million will be paid annually in royalties to municipalities and landowners. In conclusion, from an environmental perspective, it is expected that 4,000 MW of wind capacity will annually produce about 12 TWh of electric energy, and displace an estimated 4 million tonnes of greenhouse gases (GHGs) annually. 17 refs., 16 tabs.

  10. Mesothelioma in Quebec chrysotile miners and millers: epidemiology and aetiology. (United States)

    McDonald, A D; Case, B W; Churg, A; Dufresne, A; Gibbs, G W; Sébastien, P; McDonald, J C


    In a cohort of some 11,000 men born 1891-1920 and employed in the Quebec chrysotile production industry, including a small asbestos products factory, of 9780 men who survived into 1936, 8009 are known to have died before 1993, 38 probably from mesothelioma--33 in miners and millers and five in factory workers. Among the 5041 miners and millers at Thetford Mines, there had been 4125 deaths from all causes, including 25 (0.61%) from mesothelioma, a rate of 33.7 per 100,000 subject-years; the corresponding figures for the 4031 men at Asbestos were eight out of 3331 (0.24%, or 13.2 per 100,000 subject-years). At the factory in Asbestos, where all 708 employees were potentially exposed to crocidolite and/or amosite, there were 553 deaths, of which five (0.90%) were due to mesothelioma; the rate of 46.2 per 100,000 subject-years was 3.5 times higher than among the local miners and millers. Six of the 33 cases in miners and millers were in men employed from 2 to 5 years and who might have been exposed to asbestos elsewhere; otherwise, the 22 cases at Thetford were in men employed 20 years or more and the five at Asbestos for at least 30 years. The cases at Thetford were more common in miners than in millers, whereas those at. Asbestos were all in millers. Within Thetford Mines, case-referent analyses showed a substantially increased risk associated with years of employment in a circumscribed group of five mines (Area A), but not in a peripherally distributed group of ten mines (Area B); nor was the risk related to years employed at Asbestos, either at the mine and mill or at the factory. There was no indication that risks were affected by the level of dust exposure. A similar pattern in the prevalence of pleural calcification had been observed at Thetford Mines in the 1970s. These geographical differences, both within the Thetford region and between it and Asbestos, suggest that the explanation is mineralogical. Lung tissue analyses showed that the concentration of

  11. Playa Lakes (United States)

    Kansas Data Access and Support Center — This digital dataset provides information about the spatial distribution of soil units associated with playa lakes. Specific soil types have been designated by the...

  12. The Certification of Teachers' Language Competence in Quebec in French and English: Two Different Perspectives? (United States)

    Laurier, Michel; Baker, Beverly


    Language tools are reflections of the academic traditions of assessment developers, as well as the perceptions of language quality as held by a society. The certification of Quebec's teachers offers an interesting case in point: the Québec Government's "ministère de l'Éducation, du Loisir et du Sport" (MELS) requires that all students in…

  13. Teaching Ethics and Religious Culture in Quebec High Schools: An Overview, Contextualization and Some Analytical Comments (United States)

    Rymarz, Richard


    In 2008 Quebec introduced a new ethics and religious culture course. This marks a significant development in Canadian education as the mandated curriculum is intended for use in publically funded secular schools. In the past such courses have been in the domain of denominational schools. This new approach is examined in the context of the profound…

  14. Shunning the Bird's Eye View: General Science in the Schools of Ontario and Quebec (United States)

    Hoffman, Michelle


    This paper considers the adoption of general science courses in two Canadian provinces, Ontario and Quebec, during the 1930s. In Ontario, a few science teachers had followed the early general science movements in the United States and Britain with interest. During the 1930s, several developments made the cross-disciplinary, applied thrust of general science particularly appealing to Ontario educationists. These developments included a new demand for vocational education, renewed reservations about pedagogical rationales based on transfer of training, and a growing professional divide between high school science teachers and university scientists. Around the same time, scientists in the Quebec's French-language universities were engaged in a concerted campaign to expand the place of science in the province's francophone secondary schools. The province's prestigious classical colleges, which were the scientists' principal target for reform, privileged an inductive view of science that had little in common with the applied, cross-disciplinary emphasis of the general science courses gaining support in English-speaking school systems. In 1934, however, a popular American general science textbook was adopted in a workers' cooperative devoted to adult education. Comparing the fate of general science within these two education systems draws attention to the fact that general science made inroads in francophone Quebec but had little influence in public and private schools. In light of the growing support general science enjoyed elsewhere, we are led to explore why general science met with little overt interest by Quebec scientists pushing for school science reform during the 1930s.

  15. Lambs to the Slaughter? Young Francophones and the Role of English in Quebec Today (United States)

    Oakes, Leigh


    In recent years, there has been a resurgence of fears concerning the status of English in Quebec. Unlike in the past, many now claim that it is francophones themselves who risk undermining the achievements of 30 years of successful status planning. The finger is pointed in particular at young francophones, accused of adopting an unfettered…

  16. A/Political Education: A Survey of Quebec Students' Perceptions of Their Citizenship Education (United States)

    Fournier-Sylvester, Nicole


    This survey of 370 recent high school graduates reveals that history and citizenship courses in Quebec focus on cultural and religious viewpoints, favour a transmission approach to learning, and fail to connect the political process to students' concerns and interests. Without a clear conception of citizenship as a reference point, this curriculum…

  17. Some Aspects of Language Planning in Quebec and in Finland. Discussion Papers in Geolinguistics, 17. (United States)

    Laporte, Pierre-Etienne; Maurais, Jacques

    This report discusses and compares language planning and the Swedish-speaking minority in Finland and the English-speaking minority in Quebec. The report discusses four issues: historical minorities and the demographic dynamic; municipalities; the language of work; and other minority language groups. It is concluded that, despite numerous surface…

  18. Job Satisfaction among Librarians in English-Language Universities in Quebec. (United States)

    Sierpe, Eino


    Spector's Job Satisfaction Survey was used to measure the job satisfaction of librarians in the three English-language universities in the Province of Quebec, Canada. Results showed that though librarians working in these institutions are generally satisfied, they are dissatisfied with communication and operating procedures. The relationship…

  19. Language Attitudes and Self-Reports of French-English Language Usage in Quebec. (United States)

    Bourhis, Richard Y.


    Explores the impact of Quebec language planning in favor of French on self-reports of language use in cross-cultural encounters between Francophones and Anglophones in Montreal. Results indicate that discrepancies exist between respondents' self-reports of language use and their reported experience and that motivational and normative factors…

  20. Quartz OSL dating of late Holocene beach ridges from the Magdalen Islands (Quebec, Canada)

    DEFF Research Database (Denmark)

    Remillard, A.M.; Buylaert, Jan-Pieter; Murray, Andrew


    Quartz optically stimulated luminescence (OSL) dating has been applied to sandy beach ridge systems from the Magdalen Islands in the center of the Gulf of St. Lawrence (Quebec, Canada) to provide the first chronological framework for these features. Nineteen beach ridges (22 samples) from four di...

  1. Tensions between Teaching Sexuality Education and Neoliberal Policy Reform in Quebec's Professional Competencies for Beginning Teachers (United States)

    Parker, Dan; McGray. Robert


    This research draws into question the effects that neoliberal policy reforms--with an emphasis on individual and measurable "competencies"--has on new teachers teaching sexuality education in Quebec. While we examine professional competencies that teachers can use to define their mandate for teaching sexuality education as a beginning…

  2. Applying the Quebec Task Force criteria as a frame of reference for studies of whiplash injuries

    NARCIS (Netherlands)

    Versteegen, GJ; van Es, FD; Kingma, J; Meijler, WJ; ten Duis, HJ


    Research prior to 1995 showed a diversity of either inclusion or exclusion criteria (or both) for diagnosing whiplash injury. As a consequence, the Quebec Task Force (QTF) developed expert-based criteria, which may be considered as a the 'new' gold standard. Here, we examined the inclusion criteria

  3. The Destruction of Foster Care Files in Quebec: The Co-Opting of the Profession. (United States)

    Speirs, Carol Cumming


    Discusses the widespread, planned destruction of foster care files in social service centers in Quebec, focusing on the issues for the former clients, for the agencies involved, and for the social work profession. Argues that, for social workers, the destruction of the files represents an abandonment of their professional principles. (MDM)

  4. Mandated Interdisciplinarity in Secondary School: The Case of Science, Technology, and Mathematics Teachers in Quebec (United States)

    Hasni, Abdelkrim; Lenoir, Yves; Alessandra, Froelich


    New curricular orientations in the secondary schools of many Western countries invite teachers of STEM school subjects (science, technology, engineering, and mathematics) to integrate these school subjects (Czerniak, 2008). In Quebec, such interdisciplinarity is not a mere recommendation, but an official component of the curriculum (a…

  5. Co-operative Education in the Pulp and Paper Sector in Quebec. (United States)

    Savoie-Zajc, Lorraine; Dolbec, Andre


    A cooperative education program involved student practica in Quebec pulp and paper mills. Using the concept of community of practice and a typology of work experience, data from 175 students indicated that schools and workplaces placed traditional roles regarding theory and practice. Organizational cultures remained separate and opportunities for…

  6. Ethics Education Seen through the Lens of Habermas's Conception of Practical Reason: The Quebec Education Program (United States)

    Bouchard, Nancy; Morris, Ronald W.


    This paper examines the Quebec Education Program (QEP), particularly the new course in ethics and religious culture (ERC), in the light of Habermas's conception of the moral and ethical uses of practical reason. Habermas's discursive theory of morality is used to assess the program's understanding of what it means to be competent in moral matters.…

  7. Snowpack and snowmelt modeling of a subarctic catchment in northern Quebec, Canada, using an energy and mass balance approach (United States)

    Oreiller, M.; Rousseau, A. N.; Minville, M.


    There is a growing interest in modeling snowpack evolution and spring runoff in northern Quebec, Canada, where there are several large-scale hydropower complexes. This region (49th to 55th degree north), characterized by boreal forest, lakes and wetlands, is highly remote and snowpack observations are very sparse. The objective of this study is to improve the snow module of HYDROTEL, a distributed continuous hydrological model currently used to predict inflows to large hydropower reservoirs of the region, with the help of continuous in-situ measurements of snow water equivalent. Up to now HYDROTEL has relied on a mixed degree-day/energy balance method to simulate accumulation and depletion of the snow cover. This approach has the advantage of requiring a small number of input data, but under changing climate conditions such as those recently experienced unusually high temperature in late winter or rain-on-snow events it has a tendency to generate unreliable results. We thus implemented a completely physically-based snow module, CROCUS, and try to determine whether HYDROTEL could benefit from an energy and mass balance approach. CROCUS, originally developed for snowpack simulations in the French Alps, has been adapted to the specific environmental characteristics of the boreal region. The simulation can now be validated with snow water equivalent collected by a GMON sensor, which evaluates absorption of the natural ground gamma radiation by the snowpack. The number of input data required by CROCUS is more important (seven meteorological variables on an hourly basis instead of two on a daily basis for the current version of HYDROTEL's snow module) which makes it more complex to use and at this points too complex to be implemented directly as a subroutine in HYDROTEL. However, this study shows that HYDROTEL is much more effective at predicting winter and spring runoff when using CROCUS as the snow module.

  8. Brief by the Coop Federee concerning the draft regulation for the second block of wind energy in Quebec; Memoire de La Coop Federee concernant le projet de reglement sur le second bloc d'energie eolienne au Quebec

    Energy Technology Data Exchange (ETDEWEB)



    The Coop Federee addresses all agricultural issues facing rural Quebec. It represents more than 51,000 members from 101 agricultural co-operatives that address a variety of needs on behalf of agricultural producers and consumers. As a wholesaler, the Coop Federee provides goods and services, including petroleum products, to its members in Quebec, Ontario and New Brunswick. This document addressed issues related with the recent announcement by the Quebec Government that Hydro-Quebec would launch a second invitation to bid on 2000 MW wind power. With the first invitation to bid on 1000 MW launched in 2003, the premier of Quebec affirmed to make Quebec a world leader in the field of green energy. The Government of Quebec requires that 60 per cent of the components in the wind park must come from within Quebec. Therefore, if a 100 MW wind park involves an investment of $170 million, then $102 million dollars will undoubtedly be spent in the province, plus any added expenditures such as maintenance, labour and taxes. Over the 20 year lifespan of the project, this represents approximately $3.5 billion dollars from a 2000 MW wind project. This represents a significant contribution to the province's economic development. This paper presented a critical examination of the proposal, with reference to external promoters of wind power. It also addressed the issue of potential negative consequences which may, in the long-term, present a barrier to the development of wind power in the province. 9 refs., 2 tabs., 2 appendices.

  9. Orientations and Motivation in the Acquisition of English as a Second Language Among High School Students in Quebec City. (United States)

    Belmechri, Faiza; Hummel, Kirsten


    Investigated the emergence of orientations and their relation to motivation in a predominantly monolingual context. Participants were 93 Quebec City francophone Grade 11 high school students learning English as a Second Language. (Author/JL)

  10. The current trend of oil and natural gas exploration in Quebec; L'engouement actuel pour l'exploration du petrole et du gaz naturel au Quebec

    Energy Technology Data Exchange (ETDEWEB)

    Marcil, J.S. [Junex, Montreal, PQ (Canada); Canadian Inst. of Mining and Metallurgy, Montreal, PQ (Canada)


    Although Quebecers spend more than $10 million per year in hydrocarbon fuels, the production of hydrocarbons in the province is very small. Recently however, companies such as Junex of Quebec and Corridor Resources of Halifax have launched important hydrocarbon exploration programs in the province of Quebec. Quebec has a refining capacity of 500,000 barrels of oil per day and has 3 important refineries and an important petrochemical industry. In addition, the newly launched exploration programs are now beginning to yield results. Other companies have embarked in the exploration trend. These include Gastem, Aquatex, Petrolia, Talisman Energy, Amque and Petrolympia. In September 2006 the Quebec Ministry of Natural Resources issued 383 exploration permits. Since 2006, Junex has produced 1000 barrels of light crude that has been sold to the Ultramar refinery in Saint-Romuald. Junex has also been producing from wells in the Gaspe Peninsula. It was noted however, that successful development of hydrocarbon reservoirs in Quebec will require access to the offshore reserves in the Gulf of St. Lawrence, where a current exploration moratorium is in place. Also, legal boundary definitions will need to be addressed to allow for exploration in the gulf. 3 figs.

  11. GPS coordinate time series measurements in Ontario and Quebec, Canada (United States)

    Samadi Alinia, Hadis; Tiampo, Kristy F.; James, Thomas S.


    New precise network solutions for continuous GPS (cGPS) stations distributed in eastern Ontario and western Québec provide constraints on the regional three-dimensional crustal velocity field. Five years of continuous observations at fourteen cGPS sites were analyzed using Bernese GPS processing software. Several different sub-networks were chosen from these stations, and the data were processed and compared to in order to select the optimal configuration to accurately estimate the vertical and horizontal station velocities and minimize the associated errors. The coordinate time series were then compared to the crustal motions from global solutions and the optimized solution is presented here. A noise analysis model with power-law and white noise, which best describes the noise characteristics of all three components, was employed for the GPS time series analysis. The linear trend, associated uncertainties, and the spectral index of the power-law noise were calculated using a maximum likelihood estimation approach. The residual horizontal velocities, after removal of rigid plate motion, have a magnitude consistent with expected glacial isostatic adjustment (GIA). The vertical velocities increase from subsidence of almost 1.9 mm/year south of the Great Lakes to uplift near Hudson Bay, where the highest rate is approximately 10.9 mm/year. The residual horizontal velocities range from approximately 0.5 mm/year, oriented south-southeastward, at the Great Lakes to nearly 1.5 mm/year directed toward the interior of Hudson Bay at stations adjacent to its shoreline. Here, the velocity uncertainties are estimated at less than 0.6 mm/year for the horizontal component and 1.1 mm/year for the vertical component. A comparison between the observed velocities and GIA model predictions, for a limited range of Earth models, shows a better fit to the observations for the Earth model with the smallest upper mantle viscosity and the largest lower mantle viscosity. However, the

  12. [Public health in Quebec at the dawn of the 21st century]. (United States)

    Colin, C


    This paper summarises the status of public health in Quebec at the dawn of the 21st century. After introducing the current definition, the author lays out five basic functions of public health in Quebec: knowledge and surveillance of populations health and wellbeing, health protection; prevention of disease, trauma and social problems that influence health; health and wellbeing promotion; and service organization and evaluation. The organization of public health services is then described at the local level (CLSC), regional level (Public health units) and national level (Ministry, Public health directorate and National Institute of Public Health). Finally, the trends and priorities elaborated over the last ten years, as well as the National Public Health Program to be implemented over the next ten years are described.

  13. The incidence of juvenile rheumatoid arthritis in Quebec: a population data-based study

    Directory of Open Access Journals (Sweden)

    Houde Michelle


    Full Text Available Abstract Objective To determine the population incidence of juvenile rheumatoid arthritis (JRA in Quebec. Methods We obtained data from Quebec's physician claims database. Incident cases were defined as having a visit for JRA in 2000, no visit in the previous 3 years, a confirmed diagnosis by an arthritis specialist, or having ≥ 2 visits to any physician for JRA, ≥ 2 months apart but within 2 years. Results Cumulative incidence of JRA was 17.8/100,000. Mean age at diagnosis was 9.8 ± 4.6 years, 68% were female and more persons were diagnosed in winter. Subjects had a median of 10 medical visits over the first year. Conclusion Our population based incidence estimate was similar to others. Children and adolescents with JRA are heavy users of medical care. Additional study of environmental or climate- related triggers may be warranted.

  14. Psychoeducation in Quebec: An Overview of the Subject’s Adaptive and Therapeutic Process

    Directory of Open Access Journals (Sweden)

    Jonathan Bluteau


    Full Text Available This is the last in a series of three articles on Quebec psychoeducation. While the first article introduced the historical and theoretical foundations of psychoeducation as a university discipline in Quebec, the second presented the Psychoeducative Intervention Method. This final article broaches the concept of psycho-social adaptation, with reference to the subject’s adaptive process as a result of having learned skills within the context of a shared psychoeducational experience. This third article also further examines the Utilizing of experiences for therapeutic purposes, a fundamental professional process in the field of psychoeducation. The aim herein is to consolidate the many concepts presented in the previous articles and facilitate the reader’s understanding of how they all come together and are activated by the psychoeducator in a treatment context by means of a highly-specialized therapeutic activity.

  15. Q fever in Quebec (1989–93: Report of 14 Cases

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    Monique Goyette


    Full Text Available Q fever, a zoonosis acquired by inhalation of the rickettsia Coxiella burnetii, is rarely diagnosed in Canada. The world incidence has been increasing since 1960, because of progressive dissemination of this microorganism in animal populations, particularly domestic ruminants. Some recent outbreaks were caused by cats. Of 14 cases reported in Quebec between 1989 and the beginning of 1993, nine occurred successively in an 18-month period in the rural region surrounding Trois-Rivières, after contact with livestock or cats. These cases are reported here, with the results of serological screening of the workers of an abattoir where one of the cases worked. Five additional cases reported in Quebec during the same period are briefly reviewed.

  16. Incidence Rate and Epidemiological and Clinical Aspects of Kawasaki Disease in Children of Maghrebi Origin in the Province of Quebec, Canada, Compared to the Country of Origin. (United States)

    Gorrab, Arbia Abir; Fournier, Anne; Bouaziz, Asma Abed; Spigelblatt, Linda; Scuccimarri, Rosie; Mrabet, Ali; Dahdah, Nagib


    The incidence of Kawasaki disease in Maghreb countries is apparently low, unlike those living in the province of Quebec, Canada. This retrospective study compared Maghrebi children living in Quebec to the countries of origin, Morocco, Algeria, and Tunisia. The annualized incidence rate in Quebec (18.49/year/100 000 children under 5 years of age) was 4 to 12 times higher than in Tunisia, Morocco, and Algeria (0.95, 4.52, and 3.15, respectively). The prevalence of incomplete diagnostic criteria was higher in Quebec at 39%, Morocco 43%, and Tunisia 39% compared to Algeria at 8%, with minimal delayed diagnosis (7%) only in Quebec compared to 30%, 35%, and 62%, respectively (P disease in the Maghreb community in Quebec versus the countries of origin seems due to underdiagnosis, which represents a public health concern in those countries.

  17. Customized Training for Business and Industry: The Quebec College Experience. Notes for an Address. (United States)

    Bourgeois, Charles S.; Gauvreau, Rejean

    College Edouard-Monpetit (CEM) is the largest French-language college in Quebec. Its student body consists of 4,000 full-time students in pre-university programs, 3,000 full-time students in technical programs, and 11,500 part-time students in continuing education. CEM has two main campuses, offering four pre-university and 15 technical programs,…

  18. The educational integration of separated minors: a comparison of the situations in France and Quebec

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    Eva Lemaire

    Full Text Available This article proposes to investigate the educational experiences of thirty-two separated children (unaccompanied minors seeking refuge in two different regions: the Ile-de-France (Paris region of France and the province of Quebec in Canada. It allow for a better understanding of the role and the actual place that education has in the integration process of these vulnerable young migrants.


    Directory of Open Access Journals (Sweden)

    Ricard Zapata-Barrero


    Full Text Available This article seeks to analyze the relationship between immigration policiesand the development of self-government within plurinational federal orhighly decentralized systems. The author depicts the Quebec and Flandersapproach to immigration policies according to their link to the definitionand exercise of political self-government, and then he tries to compare itwith that of Catalonia. By doing so, he concludes that whereas this link ispresent on the political agenda of Quebec and Flanders, it is not yet includedin that of Catalonia. Taking the case of Catalonia as the last object of study,this article is first interested in how Quebec and Flanders have resolved (orbetter said, are resolving the doubts about the relationship between immigrationand Government. In this setting it considers the elements which couldshape Catalonia's own philosophy, taking into account its features as a socialcommunity. The article is structured in three parts. The first part (Immigration and selfgovernment:theoretical premises, is an approach to the main theoreticalpremises about the link between immigration and self-government. Theauthor explicitly relies on the contributions by Carens, Kymlicka, and Bauböck.The second part (The debate on immigration in Flanders and Quebec, triesto identify and apply to the Catalan case the main points of the academicdebate. The third and last part (Elements to construct a public philosophyfor immigration in Catalonia, the author seeks to provide a brief state-ofthe-question in Catalonia by depicting the current Plan for Citizenship andImmigration (2005-2008. On these bases, he then attempts to provide somefirst responses to the question about which areas should be included withina public philosophy for immigration in Catalonia should be, focusing bothon the debate about citizenship as well as on the definition of who shouldbe considered an immigrant in Catalonia. In his conclusions, the author summarizesthe main points of the

  20. Antimicrobial Stewardship in Acute Care Centres: A Survey of 68 Hospitals in Quebec

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    Vincent Nault


    Full Text Available BACKGROUND: Antimicrobial stewardship programs (ASPs and quantitative monitoring of antimicrobial use are required to ensure that antimicrobials are used appropriately in the acute care setting, and have the potential to reduce costs and limit the spread of antimicrobial-resistant organisms and Clostridium difficile. Currently, it is not known what proportion of Quebec hospitals have an ASP and/or monitor antimicrobial use.

  1. Public health impact assessment of a proposed cogeneration plant in the Quebec city metropolitan area

    Energy Technology Data Exchange (ETDEWEB)

    Lajoie, P.; Bolduc, D.; Gauvin, D.; Guerrier, P.; Gauthier, R. [Quebec Public Health Center, Ste-Foy (Canada); Laflamme, P. [Laval Univ. (Canada). Dept. of Preventive Medicine


    In 1994, public hearings were held in Quebec city concerning a 120 megawatt (MW) gas cogeneration project that was to be coupled with an already existing pulp and paper mill in the downtown area. Cogeneration plants are often described as highly beneficial from the point of view of local environment. It is well known that the burning of natural gas emits far less sulfur dioxide (SO{sub 2}) and particulate matters (PM) than the combustion of oil or coal. The proposed plant would use high pressure vapour from a nearby incinerator plant and natural gas to produce low pressure vapor for the paper mill industry as well as electricity. The cogeneration plant would allow the paper mill to stop burning heavy oil. By using natural gas instead of heavy oil, the new cogeneration-paper mill complex (CPC) is expected to reinforce the recent trend and willingness towards improving downtown air quality. On the other hand, the CPC would emit more CO{sub 2}, due to the production of additional electricity. According to the Rio de Janeiro Agreement ratified in 1988, Canada is committed to stabilize its greenhouse gas emissions by the year 2000. Nevertheless, the cogeneration file is a new option considered by the Quebec Provincial Governement in its last energy triennal plan. However, it must be specified that the Province of Quebec contributes to less than 15 % of the total Canadian CO{sub 2} production although it represents more than 25 % of its population. Furthermore the maximum production of electricity by this file has been set to 250 MW. It is a very small fraction of the total production of electricity in Quebec, which is 200 TW

  2. Survival of female mallards along the Vermont–Quebec border region (United States)

    Longcore, Jerry R.; McAuley, Daniel G.; Heisey, Dennis M.; Bunck, Christine M.; Clugston, David A.


    Understanding effects of location and timing of harvest seasons on mortality of ducks and geese from hunting is important in forming regulations that sustain viable waterfowl populations throughout their range. During 1990 and 1991 we alternately marked 80 hatching year (HY), female mallards along the Vermont–Quebec border; half with radio-transmitters and bands and half with only aluminum leg bands. We monitored radio-marked ducks daily and recorded survival status weekly for 15 weeks from August until December each year. Mallard mortalities began 25 September when the hunting season opened in the Province of Quebec, Canada. Overall survival of mallards at week 10 did not differ between years (0.51 in 1990 vs. 0.43 in 1991) or differ from that of HY American black ducks (0.44 females, 0.42 males) based on proportional hazard analysis in a Bayesian framework. The mortality rates for mallards from hunting (0.47) and causes unrelated to hunting (0.06) were similar between years and to those rates for HY black ducks at that same site. Hunter harvest accounted for most of the mortality recorded during this study and illegal feeding (i.e., baiting) at sites just before and during the hunting season was observed. Females with lower body condition index had greater mortality rates; a 1-standard-deviation increase in condition index would reduce mortality hazard by about 29%. Management options that may increase mallard survival in the area include lowering daily bag limit in Quebec and suspending split hunting seasons in Vermont that increase harvest, delaying opening date of hunting in Quebec to allow for increased body condition before hunting season opens, and improving enforcement of baiting restrictions.

  3. Hospitalizations for Diarrhea in Quebec Children from 1985 to 1998: Estimates of Rotavirus-Associated Diarrhea


    René-Pierre Buigues; Bernard Duval; Louis Rochette; Nicole Boulianne; Monique Douville-Fradet; Pierre Déry; Gaston De Serres


    OBJECTIVE: To characterize the incidence and duration of hospitalization due to diarrhea and to assess the proportion of hospitalizations that are attributed to rotavirus-associated diarrhea.DESIGN: Retrospective study of hospitalization data.SETTING: Hospitals located in Quebec.POPULATION STUDIED: Children from one to 59 months of age who were discharged from hospital from April 1, 1985 to March 31, 1998.MAIN RESULTS: There were 63,827 hospitalizations for diarrhea over the study period, for...

  4. Hydro-Quebec TransEnergie's perspective on overhead transmission line protection against lightning

    Energy Technology Data Exchange (ETDEWEB)

    Dutil, A. [Hydro-Quebec, Montreal, PQ (Canada). TransEnergie Div.


    Hydro-Quebec TransEnergie's interest in transmission line surge arresters (TLSA) was discussed. The utility conducted studies regarding the use of TLSAs to reduce outages caused by lightning in overhead transmission lines having voltages of 52 to 330 kV. It was determined that in some cases, TLSA is the only solution to reducing flashover initiated by lightning. This paper presented the results of 4 different TLSA configurations in which the impact of grounding resistance on TLSA performance was examined in an effort to determine the most effective configuration. The study revealed that lightning flashovers could be reduced by 70 per cent by installing 1 TLSA on every 2 poles of a 52 kV transmission line. The TLSA should be mounted on one pole structure and the earth wire on the unprotected poles should be removed. According to several tests conducted at Hydro-Quebec's Institut de Recherche en Electricite du Quebec (IREQ), the energy absorption capability of arresters from 4 different manufacturers proved to be at least 6 kJ/kv. The arresters failure rate was estimated to 3 per cent every time a lightning strike occurred on a transmission line. It was suggested that a 100 km long line with one pole every 60 meters should not have more than one arrester failure per year. The arresters must be installed with a mechanical device that could disconnect a failed unit from the transmission system to avoid a permanent fault on the network. It was concluded that TLSAs are useful in reducing lightning flashovers caused by lightning. However, Hydro-Quebec TransEnergie still has concerns regarding their cost, reliability, impact on line maintenance, testing difficulties in the field, mechanical stress on the conductors, and their ability to withstand dielectric behaviour under ice. tabs., figs.


    Directory of Open Access Journals (Sweden)

    Zilá Bernd


    Full Text Available O artigo visa aanalisar os trânsitos políticos e culturais desencadeados pela chamada Revolução Tranquila ocorrida nos anos 1960 na província do Quebec e que tiveram como consequência a ruptura radical com um sistema social de base tradicional sob a tutela da Igreja Católica, levando a sociedade a se repensar em termos identitários e a promover uma ampla tomada de consciência sobre sua pertença à América e sobre anecessidade de afirmação de uma especificidade quebequense. Destaca-se, de um lado, o papel de Gaston Miron como um dosprincipais artífices que desenhou uma nova cartografia literária do Quebec francófono e, de outro, o revival desse período realizado pelo filme C.R.A.Z.Y., de 2005, do cineasta quebequense Jean-Marc Vallée. O filme homenageia a Revolução Tranquila ao sublinhar as mobilidades culturais entre as gerações no Quebec dos anos 1960, os deslocamentos do personagem entre o Canadá e Israel e as passagens da tradição para a modernidade.

  6. Focal mechanisms and variations in tectonic stress fields in eastern Canada (western Quebec and southern Ontario) (United States)

    Asgharzadeh Sadegh, Parisa

    Earthquakes in western Quebec and southern Ontario present a major contribution to the natural hazards in south eastern Canada due to their proximity to major population centres. However, the seismic characteristics of the events in these regions have not been well documented. Improved knowledge of earthquake distribution and seismic controlling mechanisms provides a great benefit for earthquake hazard analysis in eastern Canada. The available information about the tectonic stress indicators, including focal mechanisms, was compiled for Canada prior to 1994. The present research is concentrated mainly on determination of the focal mechanisms and hypocentre locations of the earthquakes after 1993 with M > 3.5 to characterize the present-day regional and local stress fields in southern Ontario and western Quebec. An attempt was also made to differentiate local zones with comparatively homogeneous tectonic stresses orientation and seismic regimes, thus providing information for future re-assessment of the seismic hazard in each region. Considering seismic parameters such as the trend of the epicentres, focal depths and the state of stress of the events along with their tectonic settings, ten distinct clusters have been proposed for western Quebec and two clusters of events were determined for southern Ontario with comparatively consistent focal mechanisms. The locations and characteristics of seismicity clusters appear to be consistent with the hypothesis that they are near the locations of large historic and prehistoric events, and represent exceptionally persistent aftershocks of past large earthquakes.

  7. Impact of climate change on operations and planning of Hydro-Quebec's generation system

    Energy Technology Data Exchange (ETDEWEB)

    Raymond, M.P.; Houle, B.; Robert, S. [Hydro-Quebec, Montreal, PQ (Canada)


    Hydraulic resources currently account for more than 95 per cent of Hydro-Quebec's generation capacity. Hydro-Quebec also plans to purchase more wind power in the future. However, the utility wind and hydroelectric resources will be affected by climatic change in the future. This paper outlined research needed by hydroelectric and water resource managers in order to accurately determine the impacts of climatic change. Parameters included changes in annual and seasonal distribution as well as changes in the variability of natural inflows. The research will be used to determine the configuration of new projects as well as the refurbishment and replacement of existing infrastructure. Load profiles for the future indicate that electricity use will change, with less heating needed in winter, and more air conditioning required in summer months. The Delta method was used to determine impacts of future inflows and hydrological regimes. A case study of climate change impacts and management strategies for the Outardes River system up to the year 2050 was presented. The study showed that higher inflows are expected to produce more energy. Maintenance planning and flood control techniques were also discussed. The study showed that the effects of climate change on each of Hydro-Quebec's systems is expected to follow a similar pattern to the Outardes system. tabs., figs.

  8. Los retos de la educación intercultural: Cataluña-Quebec

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    Nuria Llevot Calvet


    Full Text Available La educación multicultural y la intercultural, generalmente, suponen ideologías y prácticas diferentes. pero en otras ocasiones bajo estos conceptos se esconden realidades parecidas. Fijándonos en los discursos y las actuaciones llevadas a cabo en Cataluña y en Quebec, ambas política con la etiqueta de educación intercultural (Calaluña hacia donde creen que se debe avanzar y Quebec que lleva en este camino algunos años, pretendemos poner de manifiesto algunos de los retos que ambos contextos han tenido, tienen o tendrán que afrontar. De esta forma el texto se divide en tres partes: la primera describe la evolución catalana realizando, al final, un breve análisis de las relaciones entre los agentes educativos; la segunda presenta los pasos realizados desde los años sesenta en Quebec, con una explicación previa de su posición en comparación con Canadá multiculturalista; y, por último, las conclusiones apuntan a los citados retos de futuro que deberán tomarse en consideración. 

  9. Bathymetry of Lake Ontario (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Bathymetry of Lake Ontario has been compiled as a component of a NOAA project to rescue Great Lakes lake floor geological and geophysical data and make it more...

  10. Bathymetry of Lake Michigan (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Bathymetry of Lake Michigan has been compiled as a component of a NOAA project to rescue Great Lakes lake floor geological and geophysical data and make it more...

  11. Hydrography - Lakes Assessments - Attaining (United States)

    NSGIC GIS Inventory (aka Ramona) — This layer shows only attaining lakes of the Integrated List. The Lakes Integrated List represents lake assessments in an integrated format for the Clean Water Act...

  12. Great Lakes Bathymetry (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Bathymetry of Lakes Michigan, Erie, Saint Clair, Ontario and Huron has been compiled as a component of a NOAA project to rescue Great Lakes lake floor geological and...

  13. Bathymetry of Lake Superior (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Bathymetry of Lake Superior has been compiled as a component of a NOAA project to rescue Great Lakes lake floor geological and geophysical data and make it more...

  14. Designated Wildlife Lakes - points (United States)

    Minnesota Department of Natural Resources — This is a point shapefile of Designated Wildlife Lakes in Minnesota. This shapefile was created by converting lake polygons from the Designated Wildlife Lakes...

  15. Bathymetry of Lake Huron (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Bathymetry of Lake Huron has been compiled as a component of a NOAA project to rescue Great Lakes lake floor geological and geophysical data and make it more...

  16. To break away from fossil fuels : a contribution to solve climatic change and energy security for Quebec; S'affranchir des carburants fossiles : une contribution a la lutte aux changements climatiques et a la securite energetique du Quebec

    Energy Technology Data Exchange (ETDEWEB)

    Bonin, P.; Seguin, H.; Waridel, L.


    In response to growing energy demands, Quebec has proposed the construction of 3 deep water terminals to accommodate methane tankers which transport liquefied natural gas (LNG). This paper focused on the proposed Gros Cacouna Port project in the St. Lawrence Seaway which is currently under study and subject to approval. Equiterre, questioned the energy security aspect of the proposal and argued that increasing Quebec's reliance on increasingly expensive energy would decrease energy security. In addition, importation of LNG would bring a clear exit of capital outside the province. Equiterre also argued that reliance on fossil fuels should be decreased in order to mitigate greenhouse gas emissions which contribute to climate change. The organization questioned whether the economic and social need for the proposed project justifies a greater dependency on fossil fuels and the associated impact on the environment and fragile ecosystems of the St. Lawrence. It was suggested that alternative solutions such as renewable energy sources and energy efficiency should be explored in order to promote sustainable development, increase energy security and reduce greenhouse gases. Equiterre argued that Quebec can and must decrease, and even eliminate, its dependence on fossil fuels, including natural gas, for Quebec's economic, social and environmental well-being. For these reasons, Equiterre recommended that the proposed project be rejected, particularly since the project proponents failed to show the real impact that the project would have on Quebec markets. 72 refs., 10 tabs., 21 figs.

  17. Great Lakes Science Center (United States)

    Federal Laboratory Consortium — Since 1927, Great Lakes Science Center (GLSC) research has provided critical information for the sound management of Great Lakes fish populations and other important...

  18. A literature in the making: rewriting and the dynamism of the cultural field. Quebec women writers in English Canada A literature in the making: rewriting and the dynamism of the cultural field. Quebec women writers in English Canada

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    Barbara Godard


    Full Text Available Este ensaio apresenta um estudo da recepção da literatura quebequence em inglês no Canadá e nos Estados Unidos, levando-se em consideração os índices de recepção em termos da produção textual da literatura do Quebec nas traduções para o inglês, em especial a posição das escritoras nessas relações interculturais. The essay focuses on a study of the reception of Quebec literature in English in Canada and the United States, taking into consideration the indices of its reception in relation to the field of textual production of Quebec literature in English translation, especially the position of women writers in these intercultural relations.

  19. Genomic characterization of a large outbreak of Legionella pneumophila serogroup 1 strains in Quebec City, 2012.

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    Simon Lévesque

    Full Text Available During the summer of 2012, a major Legionella pneumophila serogroup 1 outbreak occurred in Quebec City, Canada, which caused 182 declared cases of Legionnaire's disease and included 13 fatalities. Legionella pneumophila serogroup 1 isolates from 23 patients as well as from 32 cooling towers located in the vicinity of the outbreak were recovered for analysis. In addition, 6 isolates from the 1996 Quebec City outbreak and 4 isolates from patients unrelated to both outbreaks were added to allow comparison. We characterized the isolates using pulsed-field gel electrophoresis, sequence-based typing, and whole genome sequencing. The comparison of patients-isolated strains to cooling tower isolates allowed the identification of the tower that was the source of the outbreak. Legionella pneumophila strain Quebec 2012 was identified as a ST-62 by sequence-based typing methodology. Two new Legionellaceae plasmids were found only in the epidemic strain. The LVH type IV secretion system was found in the 2012 outbreak isolates but not in the ones from the 1996 outbreak and only in half of the contemporary human isolates. The epidemic strains replicated more efficiently and were more cytotoxic to human macrophages than the environmental strains tested. At least four Icm/Dot effectors in the epidemic strains were absent in the environmental strains suggesting that some effectors could impact the intracellular replication in human macrophages. Sequence-based typing and pulsed-field gel electrophoresis combined with whole genome sequencing allowed the identification and the analysis of the causative strain including its likely environmental source.

  20. The Quebec Association of Gastroenterology Position Paper on Colorectal Cancer Screening - 2003

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    AN Barkun


    Full Text Available Colorectal cancer is a leading cause of death and the third most common cancer in Canada. Evidence suggests that screening can reduce mortality rates and the cost effectiveness of a program compares favourably with initiatives for breast and cervical cancer. The objectives of the Association des gastro-entérologues du Québec Task Force were to determine the need for a policy on screening for colorectal cancer in Quebec, to evaluate the testing methods available and to propose one or more of these alternatives as part of a formal screening program, if indicated. Fecal occult blood testing (FOBT, endoscopy (including sigmoidoscopy and colonoscopy, barium enema and virtual colonoscopy were considered. Although most clinical efficacy data are available for FOBT and sigmoidoscopy, there are limitations to programs based on these strategies. FOBT has a high false positive rate and a low detection yield, and even a combination of these strategies will miss 24% of cancers. Colonoscopy is the best strategy to both detect and remove polyps and to diagnose colorectal cancer, with double contrast barium enema also being a sensitive detection method. The Task Force recommended the establishment, in Quebec, of a screening program with five- to 10-yearly double contrast barium enema or 10-yearly colonoscopy for individuals aged 50 years or older at low risk. The program should include outcome monitoring, public and professional education to increase awareness and promote compliance, and central coordination with other provincial programs. The program should be evaluated; specific billing codes for screening for colorectal cancer would help facilitate this. Formal feasibility, effectiveness and cost-effectiveness studies in Quebec are now warranted.

  1. Fee Increases and Target Income Hypothesis: Data from Quebec on Physicians' Compensation and Service Volumes (United States)

    Contandriopoulos, Damien; Perroux, Mélanie


    Recent years have witnessed important public investments in physicians' compensation across Canada. The current paper uses data from Quebec to assess the impact of those investments on the volumes of services provided to the population. While total physician compensation costs, average physician compensation and average unit cost per service all rose extremely fast, the total number of services, number of services per capita and average number of services per physician either stagnated or declined. This pattern is compatible with the economic target income hypothesis and raises important policy questions. PMID:24359715

  2. The burgeoning field of transdisciplinary adaptation research in Quebec (1998-): a climate change-related public health narrative. (United States)

    Gosselin, Pierre; Bélanger, Diane; Lapaige, Véronique; Labbé, Yolaine


    This paper presents a public health narrative on Quebec's new climatic conditions and human health, and describes the transdisciplinary nature of the climate change adaptation research currently being adopted in Quebec, characterized by the three phases of problem identification, problem investigation, and problem transformation. A transdisciplinary approach is essential for dealing with complex ill-defined problems concerning human-environment interactions (for example, climate change), for allowing joint research, collective leadership, complex collaborations, and significant exchanges among scientists, decision makers, and knowledge users. Such an approach is widely supported in theory but has proved to be extremely difficult to implement in practice, and those who attempt it have met with heavy resistance, succeeding when they find the occasional opportunity within institutional or social contexts. In this paper we narrate the ongoing struggle involved in tackling the negative effects of climate change in multi-actor contexts at local and regional levels, a struggle that began in a quiet way in 1998. The paper will describe how public health adaptation research is supporting transdisciplinary action and implementation while also preparing for the future, and how this interaction to tackle a life-world problem (adaptation of the Quebec public health sector to climate change) in multi-actors contexts has progressively been established during the last 13 years. The first of the two sections introduces the social context of a Quebec undergoing climate changes. Current climatic conditions and expected changes will be described, and attendant health risks for the Quebec population. The second section addresses the scientific, institutional and normative dimensions of the problem. It corresponds to a "public health narrative" presented in three phases: (1) problem identification (1998-2002) beginning in northern Quebec; (2) problem investigation (2002-2006) in which

  3. Bathymetry of Lake Erie and Lake Saint Clair (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Bathymetry of Lake Erie and Lake Saint Clair has been compiled as a component of a NOAA project to rescue Great Lakes lake floor geological and geophysical data and...

  4. Implementing Key Strategies for Successful Network Integration in the Quebec Substance-Use Disorders Programme

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    Marie-Josée Fleury


    Full Text Available Background: Fragmentation and lack of coordination often occur among organisations offering treatment for individuals with substance-use disorders. Better integration from a system perspective within a network of organisations offering substance-use disorder services can be developed using various integration strategies at the administrative and clinical levels. This study aims to identify integration strategies implemented in Quebec substance-use disorder networks and to assess their strengths and limitations. Methods: A total of 105 stakeholders representing two regions and four local substance-use disorder networks participated in focus groups or individual interviews. Thematic qualitative and descriptive quantitative analyses were conducted. Results: Six types of service integration strategies have been implemented to varying degrees in substance-use disorder networks. They are: 1 coordination activities-governance, 2 primary-care consolidation models, 3 information and monitoring management tools, 4 service coordination strategies, 5 clinical evaluation tools and 6 training activities. Conclusion: Important investments have been made in Quebec for the training and assessment of individuals with substance-use disorders, particularly in terms of support for emergency room liaison teams and the introduction of standardised clinical evaluation tools. However, the development of integration strategies was insufficient to ensure the implementation of successful networks. Planning, consolidation of primary care for substance-use disorders and systematic implementation of various clinical and administrative integration strategies are needed in order to ensure a better continuum of care for individuals with substance-use disorders.

  5. [Madness is Conforming to One's Own Norms, and No Others: Psychiatry in Post-war Quebec]. (United States)

    Perreault, Isabelle


    In the early 1950s, both the publication of the first Diagnostic and Statistical Manual (DSM-I) and the advent of psychopharmacology - particularly the development of chlorpromazine (Thorazine - RP4650) - set the stage for models of psychiatric thought, research and practice that remain dominant today. It was during this pivotal period, in 1955, that the Département de psychiatrie de l'Université de Montréal was founded by a cohort of young researchers newly arrived from well-known universities in France and the northeastern United States. This influential group quickly became staunch critics of the province's religion-based asylum system and lobbied for a government review that culminated into the 1962 Commission d'étude des hôpitaux psychiatriques (popularly known as the Bédard Report). What followed in Quebec between 1965 and 1975 was the secularization of psychiatric institutions and widespread deinstitutionalization. This paper illuminates cultural changes and intellectual shifts that have been overlooked in historical studies of post-war psychiatry by exploring the expansion of such "anti-psychiatry" schools of thought in Quebec in this period.

  6. The Three Axes of Sociological Practice: The Case of French Quebec

    Directory of Open Access Journals (Sweden)

    Jean-Philippe Warren


    Full Text Available In the debate surrounding Michael Burawoy’s plea for public sociology, it is all too often presented as the opposite of the detached, purely objective observation of society. But sociology is not torn between these two poles: the political and the scientific/empirical. Rather, the discipline is structured around three fundamental axes or dimensions: professional, descriptive, and political, embodying three essential aims which, in turn, constitute the respective roles sociology can play in academia and society depending on the specific publics the discipline seeks to address. Acting as professionals, sociologists try to attain prestige by accumulating social or symbolic capital among their colleagues. If they serve science for science’s sake, they find their reward in the advancement of knowledge. If they adopt an activist political stance, they measure the value of their work on a different scale. This paper focuses specifically on French-language sociology in Quebec from the late 19th century to 1970 and argues that the dilemma of juggling these three axes, aims, and roles is one which has deeply influenced not only the discipline as a whole but the generations of Quebec sociologists who have attempted to balance these dimensions in their scholarship. There were three basic schools or approaches during this period, each embedded in the social conditions of its time. Sociologists’ public engagement depended on specific historical conditions much more than it did on personal preferences.

  7. Practices of Disciplinarity and Interdisciplinarity in Quebec Elementary Schools: Results of Twenty Years of Research

    Directory of Open Access Journals (Sweden)

    Yves Lenoir


    Full Text Available This article presents a synthesis of different research projects that have been carried out inthe province of Quebec, Canada over the past 20 years concerning the representations and practices ofelementary teachers regarding the relative importance given to subject matter and the use ofinterdisciplinarity in their teaching practice. The first section will explain the context of the Quebecschool system on a socio-historical and political level and review the emergence of the concept ofinterdisciplinarity in Quebec. The second section will present succinctly the different research projectsthat have been conducted since 1980 and the conceptual framework they were based on. The thirdsection will consider the main results of the various research projects from two angles: first, therepresentations and practices of the teachers regarding interdisciplinarity; secondly, the relativeimportance and role that the teachers give to interdisciplinarity. In the conclusion, we will highlightamong other things the central position teachers give to the role of socialization and their minimalconsideration for the teaching of disciplinary knowledge.

  8. Mapping the Use of Engineered NM in Quebec's Industries and Research Laboratories (United States)

    Ostiguy, Claude; Emond, Claude; Dossa, Inès; Malki, Yasmina; Boily, Chantale; Roughley, David; Plavski, Anton; Endo, Charles-Anica


    Engineered NanoMaterials (NM) offer an opportunity to develop a wide variety of new products with unique properties but many studies have shown potential OHS risks specific to NM. Addressing these risks requires knowledge about release of NM into the workplaces. This research aimed to map the state of nanotechnology OHS practices in Quebec through a questionnaire following a first contact by telephone when possible and by compiling the type and volumes of NM used as well as gathering information related to the working conditions and OHS aspects. This survey was conducted among 1310 Quebec industries and 653 researchers working in different specialties potentially involved in the development/production/distribution/integration of NM and use of NM containing products. Overall, 90 questionnaires, including 51 from the industries, were completed. These showed that NM are mainly used into the powder form, in many different sectors and deserve a wide range of markets. The prevention measures implemented vary widely from a workplace to another but about one third of the participants report that they have implemented NP adapted prevention measures but they remain worried on some specific operations. More than 50% of the participants request more information about the safe laboratory/plant design, toxicity, regulation, good work practices and prevention measures, efficiency of personal protective equipment and environmental impacts.

  9. High daily doses of benzodiazepines among Quebec seniors: prevalence and correlates

    Directory of Open Access Journals (Sweden)

    Moride Yola


    Full Text Available Abstract Background Use of high daily doses of benzodiazepines is generally contraindicated for seniors. While both patient and physician factors may influence the use of high daily doses, previous research on the effect of patient factors has been extremely limited. The objectives of this study were to determine the one year prevalence of use of high daily doses of benzodiazepines, and examine physician and patient correlates of such use among Quebec community-dwelling seniors. Methods Patient information for 1423 community-dwelling Quebec seniors who participated in the Canadian Study of Health and Aging was linked to provincial health insurance administrative data bases containing detailed information on prescriptions received and prescribers. Results The standardized one year period prevalence of use of high daily doses of benzodiazepines was 7.9%. Use of high daily doses was more frequent among younger seniors and those who had reported anxiety during the previous year. Patients without cognitive impairment were more likely to receive high dose prescriptions from general practitioners, while those with cognitive impairment were more likely to receive high dose prescriptions from specialists. Conclusion High dose prescribing appears to be related to both patient and physician factors.

  10. Dam breaking modeling on a river with ice cover : needs and tools : Hydro-Quebec perspective

    Energy Technology Data Exchange (ETDEWEB)

    Tchamen, G.W.; Quach, T.T.; Aubin, F.; Mellado, A. [Hydro-Quebec, Montreal, PQ (Canada). Unite Barrages and Hydraulique


    In order to ensure public safety, owners and operators of high capacity dams in Quebec have a legal obligation to conduct dam break analysis for each of their dams. Several scenarios of dam failure have been modelled under open water conditions to anticipate the worst-case scenario in terms of downstream consequences. However, the province of Quebec is located north of the 45th parallel, and most of the surface waters are ice covered in the winter. The presence of ice influences the river flow characteristics. As such, it is important to evaluate how ice may change the propagation of a surge wave and other important hydraulic parameters following a dam break. This paper reviewed traditional hydraulic methodologies and models used to perform dam break analyses with particular attention to the presence of ice. The changes in hydraulic processes in river flow involve various physical phenomena, some of which are poorly understood from a theoretical point of view. In the past several years, robust numerical techniques borrowed from fluid mechanics and aerodynamics have resulted in the development of robust hydrodynamic codes that effectively handle irregular bottom geometries, dry bed and mixed flow regimes in reasonable computational times. However, advances are still needed in the understanding of several ice processes, their formulation and their modeling. Data collection that would improve the understanding of the processes is also needed in order to reduce the level of uncertainties associated with the results of dam-break analysis. 22 refs., 3 tabs., 6 figs.

  11. Waiting list management practices for home-care occupational therapy in the province of Quebec, Canada. (United States)

    Raymond, Marie-Hélène; Demers, Louise; Feldman, Debbie E


    Referral prioritisation is commonly used in home-based occupational therapy to minimise the negative impacts of waiting, but this practice is not standardised. This may lead to inequities in access to care, especially for clients considered as low priority, who tend to bear the brunt of lengthy waiting lists. This cross-sectional study aimed to describe waiting list management practices targeting low-priority clients in home-based occupational therapy in the province of Quebec, Canada, and to investigate the association between these practices and the length of the waiting list. A structured telephone interview was conducted in 2012-2013 with the person who manages the occupational therapy waiting list in 55 home care programmes across Quebec. Questions pertained to strategies aimed at servicing low-priority clients, the date of the oldest referral and the number of clients waiting. Results were analysed using descriptive statistics and non-parametric tests. The median wait time for the oldest referral was 18 months (range: 2-108 months). A variety of strategies were used to service low-priority clients. Programmes that used no strategies to service low-priority clients (n = 16) had longer wait times (P occupational therapy programmes. However, in programmes where none of these strategies are used, low-priority clients may be denied access to services indefinitely.

  12. Developing professional values: perceptions of francophone occupational therapists in Quebec, Canada. (United States)

    Drolet, Marie-Josée; Sauvageau, Anick


    Objective Recent literature shows growing interest in the values displayed by occupational therapists. Yet, none of these writings has so far examined the factors that contribute to the development of occupational therapists' professional values. These factors are important, since values play a pivotal role in forging professional identity, which in the case of some occupational therapists remains somewhat ambiguous. This article proposes possible answers to the following question: What do Quebec Francophone occupational therapists perceive as the building blocks of their professional values? Methods Using a phenomenological qualitative method, the subjective experience of occupational therapists in Quebec, Canada was examined. Twenty-six occupational therapists took part in the study. Results As intended, their professional experience was varied. According to the participants, four factors contributed significantly to their professional values: professional experience, university training, personal experience, and professional development. However, fewer than 50% of the participants cited six other factors (workplace, family upbringing, personal development, personality and abilities, professional normative framework, and sociocultural background). Conclusions Most of these results are consistent with those documented in existing works. They point to the relevance of discussing professional values during university training and continuing professional development, as well as encouraging occupational therapists to become exemplars for their colleagues and interns. This study constitutes an initial step in understanding how occupational therapists' axiological identity is formed.

  13. Delinquent behaviors among students exposed to family violence in Quebec schools (United States)

    Cénat, Jude Mary; Hébert, Martine; Blais, Martin; Lavoie, Francine; Guerrier, Mireille


    Objective Juvenile delinquency is one of the major public concerns in many countries. This study aims to document the association between exposure to interparental violence and delinquent behaviors among high school students in Quebec (Canada). Methods A representative sample of 8194 students aged 14–20 years was recruited in Quebec (Canada) high schools. Participants completed a questionnaire describing delinquent behaviors as well as exposure to interparental psychological and physical violence. Findings Overall, one out of two participants has experienced delinquent behaviors and 61.8% of them have reported having been exposed to at least one of the two forms of family violence. Overall, youth exposed to interparental violence are more likely to experience delinquent behaviors. Both psychological and physical interparental violence were significantly and independently associated with delinquent behaviors. Conclusion The findings of this study point out the vulnerability of youth exposed to interparental violence. They also highlight the need in the prevention of juvenile delinquency to focus not only on youth but also on both parents that may have been involved in family violence. PMID:28111591

  14. Adaptation linguistique et culturelle: L'experience des refugies d'Asie du sud-est au Quebec (Linguistic and Cultural Adaptation: The Experience of Southeast Asian Refugees in Quebec). (United States)

    Chan, Kwok B.; Dorais, Louis-Jacques

    A collection of papers, in English and French, on the adjustment processes and problems of Southeast Asian refugees in Quebec includes: "Prelude to Resettlement: A Clinical View on the Transit Camp Experience of Vietnamese Refugees" (David Loveridge, Kwok B. Chan); "Une communaute culturelle en situation de diglossie: Les…

  15. Reconstructing the lake-level history of former glacial lakes through the study of relict wave-cut terraces: the case of Lake Ojibway (eastern Canada) (United States)

    Roy, Martin; Veillette, Jean; Daubois, Virginie


    The reconstruction of the history of former glacial lakes is commonly based on the study of strandlines that generally consist of boulder ridges, sandy beaches and other near-shore deposits. This approach, however, is limited in some regions where the surficial geology consists of thick accumulation of fine-grained glaciolacustrine sediments that mask most deglacial landforms. This situation is particularly relevant to the study of Lake Ojibway, a large proglacial lake that developed in northern Ontario and Quebec following the retreat of the southern Laurentide ice sheet margin during the last deglaciation. The history of Ojibway lake levels remains poorly known, mainly due to the fact that this lake occupied a deep and featureless basin that favored the sedimentation of thick sequences of rhythmites and prevented the formation of well-developed strandlines. Nonetheless, detailed mapping revealed a complex sequence of discontinuous small-scale cliffs that are scattered over the flat-lying Ojibway clay plain. These terrace-like features range in size from 4 to 7 m in height and can be followed for 10 to 100's of meters. These small-scale geomorphic features are interpreted to represent raised shorelines that were cut into glaciolacustrine sediments by lakeshore erosional processes (i.e., wave action). These so-called wave-cut scarps (WCS) occur at elevations ranging from 3 to 30 m above the present level of Lake Abitibi (267 m), one of the lowest landmarks in the area. Here we evaluate the feasibility of using this type of relict shorelines to constrain the evolution of Ojibway lake levels. For this purpose, a series of WCS were measured along four transects of about 40 km in length in the Lake Abitibi region. The absolute elevation of 154 WCS was determined with a Digital Video Plotter software package using 1:15K air-photos, coupled with precise measurements of control points, which were measured with a high-precision Global Navigation Satellite System tied up to

  16. Substratum as a driver of variation in periphyton chlorophyll and productivity in lakes

    DEFF Research Database (Denmark)

    Vadeboncoeur, Y.; Kalff, J.; Christoffersen, Kirsten Seestern


    Quantifying periphyton (attached algal) contributions to autotrophic production in lakes is confounded by properties of substratum that affect community biomass (as chlorophyll content) and productivity. We compared chlorophyll content and productivity of natural algal communities (phytoplankton......, epipelon, epilithon, epixylon, and epiphyton) experiencing high (>10%) incident radiation in lakes in the US, Greenland, and Quebec, Canada. Chlorophyll content and productivity differed significantly among regions, but they also differed consistently among communities independent of region. Chlorophyll...... content of periphyton on hard substrata (rocks and wood) was positively related to water-column total P (TP), whereas chlorophyll content of algae on sediment (epipelon) and TP were not significantly related. Chlorophyll content was up to 100× higher on sediments than on hard substrata. Within regions...

  17. Development and Adaptation of an Employment-Integration Program for People Who Are Visually Impaired in Quebec, Canada (United States)

    Wittich, Walter; Watanabe, Donald H.; Scully, Lizabeth; Bergevin , Martin


    Introduction: In the Province of Quebec, Canada, it is estimated that only about one-third of working-age adults with visual impairments are part of the workforce, despite ongoing efforts of rehabilitation and government agencies to integrate these individuals. The present article describes the development and adaptation of a pre-employment…

  18. Quebec's Child Care Services: What Are the Mechanisms Influencing Children's Behaviors across Quantity, Type, and Quality of Care Experienced? (United States)

    Lemay, Lise; Bigras, Nathalie; Bouchard, Caroline


    The objective of this study was to examine how quantity, type, and quality of care interact in predicting externalizing and internalizing behaviors of 36-month-old children attending Quebec's educational child care from their first years of life. To do so, the authors examined two hypothesized models: (1) a mediation model where quantity, type,…

  19. Vitality and Ethnolinguistic Attitudes of Acadians, Franco-Ontarians and Francophone Quebecers: Two or Three Solitudes in Canada's Bilingual Belt? (United States)

    Sioufi, Rana; Bourhis, Richard Y.; Allard, Réal


    Do French-Canadian (FC) minorities in New Brunswick and Ontario remain as committed as majority Francophone Quebecers in developing their vitality within Canada's bilingual belt? FCs constitute host communities for interprovincial migrants of FC and English-Canadian (EC) background who can bolster or weaken the vitality of FCs. How FCs and ECs…

  20. Pedagogical and Political Encounters in Linguistically and Culturally Diverse Primary Classrooms: Examples from Quebec, Canada, and Gauteng, South Africa (United States)

    Breton-Carbonneau, Gabrielle; Cleghorn, Ailie; Evans, Rinelle; Pesco, Diane


    Comparative research in multilingual urban primary schools indicates that the pedagogical and political goals of schooling may operate at cross-purposes. Classroom observations and teacher interview-discussions were conducted in classes for immigrant children in Montreal, Quebec, Canada, where the language of instruction is French, and in classes…

  1. Invisible and Visible Language Planning: Ideological Factors in the Family Language Policy of Chinese Immigrant Families in Quebec (United States)

    Curdt-Christiansen, Xiao Lan


    This ethnographic inquiry examines how family languages policies are planned and developed in ten Chinese immigrant families in Quebec, Canada, with regard to their children's language and literacy education in three languages, Chinese, English, and French. The focus is on how multilingualism is perceived and valued, and how these three languages…

  2. Early Lexical and Syntactic Development in Quebec French and English: Implications for Cross-Linguistic and Bilingual Assessment (United States)

    Thordardottir, Elin T.


    Background: Although a number of studies have been conducted on normal acquisition in French, systematic methods for analysis of French and normative group data have been lacking. Aims: To develop a systematic method for the analysis of language samples in Quebec French, and to provide preliminary normative data on early lexical and syntactic…

  3. Legal Aspects in Quebec of Integration of Students with Handicaps, Social Maladjustments or Learning Disabilities: A Changing Situation. (United States)

    Dore, Robert; Wagner, Serge; Dore, Isabelle


    This article examines the current situation and evolution of school integration policies in Quebec and the influence of court decisions on these policies. Variations across Canada are discussed, particularly the differences between English-language school boards, who integrate many more students with intellectual disability, and French-speaking…

  4. Incidence Rate and Epidemiological and Clinical Aspects of Kawasaki Disease in Children of Maghrebi Origin in the Province of Quebec, Canada, Compared to the Country of Origin

    Directory of Open Access Journals (Sweden)

    Arbia Abir Gorrab MD


    Full Text Available The incidence of Kawasaki disease in Maghreb countries is apparently low, unlike those living in the province of Quebec, Canada. This retrospective study compared Maghrebi children living in Quebec to the countries of origin, Morocco, Algeria, and Tunisia. The annualized incidence rate in Quebec (18.49/year/100 000 children under 5 years of age was 4 to 12 times higher than in Tunisia, Morocco, and Algeria (0.95, 4.52, and 3.15, respectively. The prevalence of incomplete diagnostic criteria was higher in Quebec at 39%, Morocco 43%, and Tunisia 39% compared to Algeria at 8%, with minimal delayed diagnosis (7% only in Quebec compared to 30%, 35%, and 62%, respectively (P < .001. The rate of coronary aneurysms was comparable however (11% in Quebec vs 4%, 10%, and 25%, in Tunisia, Morocco, and Algeria, respectively; P = .31. The higher incidence of Kawasaki disease in the Maghreb community in Quebec versus the countries of origin seems due to underdiagnosis, which represents a public health concern in those countries.

  5. Electricity trade and GHG emissions: Assessment of Quebec's hydropower in the Northeastern American market (2006-2008)

    Energy Technology Data Exchange (ETDEWEB)

    Ben Amor, Mourad, E-mail: ben.amor@b2b2c.c [CIRAIG-Ecole Polytechnique de Montreal (Canada); Pineau, Pierre-Olivier [CIRAIG-HEC Montreal (Canada); Gaudreault, Caroline [NCASI (Canada); Samson, Rejean [CIRAIG-Ecole Polytechnique de Montreal (Canada)


    Worldwide electricity sector reforms open up electricity markets and increase trades. This has environmental consequences as exports and imports either increase or decrease local production and consequently greenhouse gas (GHG) emissions. This paper's objective is to illustrate the importance of electricity trade's impact on GHG emissions by providing an estimate of the net GHG emissions resulting from these trades. To achieve this objective, Quebec hourly electricity exchanges with adjacent jurisdictions were examined over the 2006-2008 period. In order to associate a specific GHG emission quantity to electricity trades, hourly marginal electricity production technologies were identified and validated using the Ontario hourly output per power plant and information released in the Quebec adjacent system operator reports. It is estimated that over three years, imports into Quebec were responsible for 7.7 Mt of GHG, while Quebec hydropower exports avoided 28.3 Mt of GHG emissions. Hence, the net result is 20.6 Mt of avoided emissions over 2006-2008, or about 7 Mt per year, which corresponds to more than 8% of the Quebec yearly GHG emissions. When GHG emissions from all life cycle stages (resource extraction to end-of-life) are accounted for, the net avoided GHG emissions increase by 35%, to 27.9 Mt. - Research highlights: {yields} Environmental benefits of hydropower exports are considerable. {yields} Detailed GHG assessment of such electricity trade is missing from the literature. {yields} Net GHG emissions estimate resulting from such trade is provided. {yields} GHG gains are significant in the Northeast American electricity market due to such electricity trade.

  6. [When women's schools were schools of mothers. The influence of education on the fertility of Quebec women (1850-1940)]. (United States)

    Lalou, R


    In Quebec, the relationship between instruction of women and their fertility almost always conforms to hypotheses and traditional theoretical reasonings. The history of education in Quebec contradicts certain sub-vacant theories of explicative models. Until recently, the Quebecois school was not a bearer of new and progressive ideas as the theoretical demographic frameworks demographers thought. On the contrary, due to the strong influence of Catholicism, it tried to maintain the woman in her traditional roles of mother and housewife. Inversely, it is not clear that it allowed girls to acquire the means of their freedom. The Quebecois school did promote birth limitations by the act of educating if not by the contents of its teaching. The school's pronatalist position shaped the collective conscience to respect tradition. The cultural and ideological conservatism of yesterday's school is certainly not an unknown reality of researchers. It is surprising that one must note its persistent absence in demographic studies. The demographers conducting this historical survey of women's schools and fertility do not claim that an approach of the relationship between fertility and education taking in account the cultural and political finality of school would change profoundly the statistical evidence. The evidence shows that the school's emancipatory characteristics did influence the reproductive behavior of Quebec women, but its conservative characteristics probably kept the school from fully contributing to progress. This approach makes us better understand this phenomenon of Quebec history and a little less in terms of some models which are a little too conventional. In conclusion, education in Quebec probably did not have as much impact on fertility decline as fertility decline theories claim.

  7. Quebec's energy sector : context, issues and questions for a Quebec energy policy based on sustainable development and energy efficiency : memoire submitted by Vivre en Ville to the Quebec Commission of Economy and Labour; Le secteur energetique au Quebec : contexte, enjeux et questionnements pour une politique energetique quebecoise basee sur le developpement durable et l'efficacite energetique : memoire depose par Vivre en Ville au Quebec Commission de l'economie et du travail

    Energy Technology Data Exchange (ETDEWEB)

    Jampierre, V.; Vaillancourt, J.; Wright-Larin, I. [Vivre en Ville, Montreal, PQ (Canada)


    Vivre en Ville is a group of 225 activists from Quebec's health, environment, transportation and education sectors that promote sustainable living in the urban areas of the province. Their recommendations to save energy are based on principles of energy efficiency and combining resources to promote the use of common transportation corridors, diversified urban living and the protection and renovation of heritage sites. In addition to promoting the creation of parks and green spaces in urban areas, the group encourages residents to engage in municipal affairs by demanding solutions to transportation problems. Among their recommendations are a moratorium on the construction of new highways; upgrade existing mass transit systems to minimize personal vehicle use; increase funding for public transport; promote light rail transit to suburban areas; and devote special road lanes to collective transport such as taxis, buses and car pools. Other recommendations include the creation of more bicycle paths and centres that offer bikers shower and locker facilities. The group also believes that companies with more than 30 employees should be required to have transportation policies for its employees, such as organized car pools. Vivre en Quebec claims that too much energy has already been wasted and more action should be taken to implement these recommendations. tabs.

  8. DNR 24K Lakes (United States)

    Minnesota Department of Natural Resources — Medium scale lake polygons derived from the National Wetlands Inventory (NWI) polygons and MnDOT Basemap lake delineations. Integrated with the DNR 24K Streams...

  9. Lake trout rehabilitation in Lake Ontario (United States)

    Elrod, Joseph H.; O'Gorman, Robert; Schneider, Clifford P.; Eckert, Thomas H.; Schaner, Ted; Bowlby, James N.; Schleen, Larry P.


    Attempts to maintain the native lake trout (Salvelinus namaycush) population in Lake Ontario by stocking fry failed and the species was extirpated by the 1950s. Hatchery fish stocked in the 1960s did not live to maturity because of sea lamprey (Petromyzon marinus) predation and incidental commercial harvest. Suppression of sea lampreys began with larvicide treatments of Lake Ontario tributaries in 1971 and was enhanced when the tributaries of Oneida Lake and Lake Erie were treated in the 1980s. Annual stocking of hatchery fish was resumed with the 1972 year class and peaked at about 1.8 million yearlings and 0.3 million fingerlings from the 1985–1990 year classes. Survival of stocked yearlings declined over 50% in the 1980 s and was negatively correlated with the abundance of lake trout > 550 mm long (r = −0.91, P < 0.01, n = 12). A slot length limit imposed by the State of New York for the 1988 fishing season reduced angler harvest. Angler harvest in Canadian waters was 3 times higher in eastern Lake Ontario than in western Lake Ontario. For the 1977–1984 year classes, mean annual survival rate of lake trout age 6 and older was 0.45 (range: 0.35–0.56). In U.S. waters during 1985–1992, the total number of lake trout harvested by anglers was about 2.4 times greater than that killed by sea lampreys. The number of unmarked lake trout < 250 mm long in trawl catches in 1978–1992 was not different from that expected due to loss of marks and failure to apply marks at the hatchery, and suggested that recruitment of naturally-produced fish was nil. However, many of the obstacles which may have impeded lake trout rehabilitation in Lake Ontario during the 1980s are slowly being removed, and there are signs of a general ecosystem recovery. Significant recruitment of naturally produced lake trout by the year 2000, one interim objective of the rehabilitation plan for the Lake, may be achieved.

  10. Polymorphic haplotypes on R408BW PKU and normal PAH chromosomes in Quebec and European populations

    Energy Technology Data Exchange (ETDEWEB)

    Byck, S.; Morgan, K.; Scriver, C.R. [McGill Univ., Montreal (Canada)] [and others


    The R408W mutation in the phenylalanine hydroxylase gene (PAH) is associated with haplotype 2.3 (RFLP haplotype 2, VNTR 3 of the HindIII system) in most European populations. Another chromosome, first observed in Quebec and then in northwest Europe, carries R408W on haplotype 1.8. The occurrence of the R408W mutation on two different PKU chromosomes could be the result of intragenic recombination, recurrent mutation or gene conversion. In this study, we analyzed both normal and R408W chromosomes carrying 1.8 and 2.3 haplotypes in Quebec and European populations; we used the TCTA{sub (n)} short tandem repeat sequence (STR) at the 5{prime} end of the PAH gene and the HindIII VNTR system at the 3{prime} end of the PAH gene to characterize chromosomes. Fourteen of sixteen R408W chromosomes from {open_quotes}Celtic{close_quotes} families in Quebec and the United Kingdom (UK) harbor a 244 bp STR allele; the remaining two chromosomes, carry a 240 bp or 248bp STR allele. Normal chromosomes (n=18) carry the 240 bp STR allele. R408W chromosomes are different from mutant H1.8 chromosomes; mutant H2.3 carries the 240 bp STR allele (14 of 16 chromosomes) or the 236 allele (2 of 16 chromosomes). The HindIII VNTR comprises variable numbers of 30 bp repeats (cassettes); the repeats also vary in nucleotide sequence. Variation clusters toward the 3{prime} end of cassettes and VNTRs. VNTR 3 alleles on normal H2 (n=9) and mutant R408W H2 (n=19) chromosomes were identical. VNTR 8 alleles on normal H1 chromosomes (n=9) and on R408W H1 chromosomes (n=15) differ by 1 bp substitution near the 3{prime} end of the 6th cassette. In summary, the mutant H1.8 chromosome harboring the R408W mutation has unique features at both the 5{prime} and 3{prime} end of the gene that distinguish it from the mutant H2.3 and normal H1.8 and H2.3 counterparts. The explanation for the occurrence of R408W on two different PAH haplotypes is recurrent mutation affecting the CpG dinucleotide in PAH codon 408.

  11. Scuola, infanzie e culture in Quebec. Le politiche educative interculturali dal paradigma culturalista al paradigma civico

    Directory of Open Access Journals (Sweden)

    Letizia Caronia


    Full Text Available Questo articolo propone un’analisi storica e una riflessione critica sui modi con cui il Quebec ha affrontato e costantemente riaffronta il problema della scuola pubblica in una società storicamente multiculturale, multietnica e plurilingue. In particolare, la riflessione riguarda il piano normativo e legislativo e le politiche scolastiche via via elaborate, per rispondere alla sfida di pensare e costruire una scuola pubblica capace di costruire una “infanzia quebecchese”. Una lettura del’curricolo ideale’ - si dirà - ci dice poco sulla ‘realtà’ educativa di un paese. Eppure, in Quebec come altrove, le politiche scolastiche costituiscono i segnali pubblici del modo con cui un paese – rappresentando pubblicamente e ufficialmente la sua scuola - rappresenta se stesso, i propri valori, le proprie concezioni di ‘infanzia’. Dopo un breve quadro storico inteso a tracciare l’origine multiculturale del Quebec (come di tutti gli stati nordamericani, par.1, saranno presi in esame la legge 101 (1977 che sancisce il francese come lingua ufficiale di insegnamento e il dibattito sempre vivo e lacerante che ha accompagnato questa legge e le sue successive modifiche (parr. 2-4. In secondo luogo, saranno presi in esame il recente processo di laicizzazione della scuola quebecchese sancito dalla legge 118 (giugno 2000 e le profonde implicazioni culturali, politiche e identitarie di tale processo (parr. 5-8. In un paese che storicamente ha fatto un uso a carattere esplicitamente identitario del riferimento alle religioni dei due gruppi maggioritari, che ha costruito su esso la propria organizzazione sociale, le identità dei gruppi e i loro rapporti di forza, la deconfessionalizzazione della scuola pubblica ha implicazioni e significati culturali del tutto peculiari. Infine sarà analizzata l’assunzione ufficiale della vocazione interculturale della scuola pubblica (parr. 9-11. L’incrocio di questi tagli prospettici fa emergere i

  12. Public Education and Multicultural Policy in Canada: The Special Case of Quebec (United States)

    Ghosh, Ratna


    Education is a provincial responsibility in Canada, but there is a sharing of expenditure and strong support of public education, health and other welfare programs between the provinces and the federal government. Although the federal policy of multiculturalism has been aimed at making Canada a `just' society, the implementation of this policy in education in English-speaking Canada has been far from satisfactory, and there is great variation among the provinces in educational programs. In Quebec, the federal policy of multiculturalism is ideologically opposed to the vision of French-Québécois nationalism. While the federal policy of intercultural education has made some attempts to integrate immigrant populations, the focus remains on linguistic programs. In facing the dramatic changes driven by internationalization and a globalized economy, Canadians must respond - so the conclusion of the present study - to the urgent need to redefine the meaning of multiculturalism with radical educational programs.

  13. The CC-Bio Project: Studying the Effects of Climate Change on Quebec Biodiversity

    Directory of Open Access Journals (Sweden)

    Luc Vescovi


    Full Text Available Anticipating the effects of climate change on biodiversity is now critical for managing wild species and ecosystems. Climate change is a global driver and thus affects biodiversity globally. However, land-use planners and natural resource managers need regional or even local predictions. This provides scientists with formidable challenges given the poor documentation of biodiversity and its complex relationships with climate. We are approaching this problem in Quebec, Canada, through the CC-Bio Project (http://cc‑, using a boundary organization as a catalyst for team work involving climate modelers, biologists, naturalists, and biodiversity managers. In this paper we present the CC-Bio Project and its general approach, some preliminary results, the emerging hypothesis of the northern biodiversity paradox (a potential increase of biodiversity in northern ecosystems due to climate change, and an early assessment of the conservation implications generated by our team work.

  14. La gestion des gestionnaires de projets: Le cas de l'industrie aerospatiale au Quebec (United States)

    Petit, Marie-Claude

    This research focuses on the management of project managers (PMs) working in high technology organizations. In particular, it examines how these professionals are taken charge of from a human resources management (HRM) standpoint in firms within the aerospace industry in Quebec. The literature in the field of project management generally depicts PMs as entrepreneurs and resource managers, managing human resources (e.g. project team members) among other things. It also defines them as single-handedly responsible for managing their own career, stress and motivation. This profile suggests that once selected and assigned to projects, PMs receive little attention in terms of HRM from the organization. It is hardly conceivable, however, that PMs would move about completely on their own within the organization, let alone that they wouldn't represent any special challenge in terms of HRM, as the ones the literature so clearly underlines for project team members. The review of the literature also reveals that the subject of HRM as applied to PMs is poorly documented empirically, especially on the topic of what particular challenges the project context might bring up for the HRM of PMs. There is also little told about the actors involved in supporting and contributing to meet the challenges that arise out of managing PMs. This study sought to discern those challenges and the means put forth to address them. Also, it wanted to identify the actors of the HRM of PMs, their roles, their skills, and their relationships, among themselves and with the PMs, in order to efficiently take charge of them. This study also wanted to demonstrate the logic that ties the means put forth by the identified actors with the objectives PM-employing organizations want to reach. Finally, the study wanted to identify the impact of the HRM of PMs as it is occurring in organizations. The Quebec aerospace sector was chosen as the field of research primarily because the success of projects in

  15. Seismic fragility of a highway bridge in Quebec retrofitted with natural rubber isolators

    Directory of Open Access Journals (Sweden)

    G. H. Siqueira

    Full Text Available This paper presents fragility curves for the evaluation of a highway bridge retrofitted with seismic isolator devices. The object of this study is the Chemin des Dalles bridge over Highway 55 located in Trois-Rivières in Quebec, Canada. A series of synthetic ground motions time histories compatible with eastern Canada are used to capture the uncertainties related to the hazard. The seismic isolator model represents natural rubber bearing placed under the longitudinal girders over the bents and the abutments of the bridge. NRB isolators are placed in these locations to uncouple the movement of the superstructure and the infrastructure, increasing the flexibility of the system and decreasing the forces transmitted to the infrastructure. Finally, a set of fragility curves for the as-built and retrofitted models are compared to evaluate the effectiveness of seismic isolation to decrease the seismic vulnerability of this bridge.

  16. Characterization of growth and lipid production by Chlorella sp. PCH90, a microalga native to Quebec. (United States)

    Abdelaziz, Ahmed Elsayed Mohamed; Ghosh, Dipankar; Hallenbeck, Patrick C


    Microalgae are being investigated as potential candidates for biodiesel production since they can be grown without competition with food production, have an inherently fast growth rate, and can have a high lipid content under different nutrient limiting conditions. However, large scale production will best be carried out with indigenous strains, well adapted to local conditions. This study reports on the characterization of the novel microalga Chlorella sp. PCH90, isolated in Quebec. Its molecular phylogeny was established and lipid production studies as a function of the initial concentrations of nitrate, phosphate, and sodium chloride were carried out using response surface methodology. Under the appropriate conditions this microalga could produce up to 36% lipid and grew well in both synthetic medium and secondary effluent from a wastewater treatment plant at both 22 and 10°C. Thus, this strain is promising for further development as a potential biofuels producer under local climatic conditions.

  17. Carbon Sequestration and Carbon Markets for Tree-Based Intercropping Systems in Southern Quebec, Canada

    Directory of Open Access Journals (Sweden)

    Kiara S. Winans


    Full Text Available Since agriculture directly contributes to global anthropogenic greenhouse gas (GHG emissions, integrating trees into agricultural landscapes through agroforestry systems is a viable adaptive strategy for climate change mitigation. The objective of this study was to evaluate the carbon (C sequestration and financial benefits of C sequestration according to Quebec’s Cap-and-Trade System for Greenhouse Gas Emissions Allowances (C & T System or the Système de plafonnement et d’échange de droits d’émission de gaz à effet de serre du Québec (SPEDE program for two experimental 10-year-old tree-based intercropping (TBI systems in southern Quebec, Canada. We estimated total C stored in the two TBI systems with hybrid poplar and hardwoods and adjacent non-TBI systems under agricultural production, considering soil, crop and crop roots, litterfall, tree and tree roots as C stocks. The C sequestration of the TBI and adjacent non-TBI systems were compared and the market value of the C payment was evaluated using the net present value (NPV approach. The TBI systems had 33% to 36% more C storage than adjacent non-TBI systems. The financial benefits of C sequestration after 10 years of TBI practices amounted to of $2,259–$2,758 CAD ha−1 and $1,568–$1,913 CAD ha−1 for St. Edouard and St. Paulin sites, respectively. We conclude that valorizing the C sequestration of TBI systems could be an incentive to promote the establishment of TBI for the purpose of GHG mitigation in Quebec, Canada.

  18. Impact of pneumococcal vaccines use on invasive pneumococcal disease in Nunavik (Quebec from 1997 to 2010

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    Jean-Baptiste Le Meur


    Full Text Available Background: In 2000, an outbreak of severe pneumonia caused by a virulent clone of serotype 1 Streptococcus pneumoniae was detected in the Nunavik region of Quebec. A mass immunization campaign was implemented in the spring of 2002, targeting persons ≥5 years of age and using the 23-valent pneumococcal polysaccharide vaccine (PPSV23. At the same time, the 7-valent pneumococcal conjugate vaccine (PCV7 was introduced into the routine immunization programme of infants, with catch-up for children up to 4 years of age. Objectives: To describe the epidemiology of invasive pneumococcal disease (IPD in relation to PPSV23 and PCV7 use. Study design and methods: Retrospective analysis of IPD cases identified by the Quebec public health laboratory during the period 1997–2010. Results: A total of 82 IPD cases were identified during the study period. In adults, serotype 1 incidence decreased following the 2002 PPSV23 mass campaign but breakthrough cases continued to occur. Following PCV7 use in children, there was a decrease in the incidence of vaccine-type IPD and replacement by other serotypes in adults. In children, a marked decrease in the annual incidence of serotypes included in PCV7 was observed following PCV7 introduction: 162/100,000 in 1997–2001 vs. 10/100,000 in 2004–2010 (p<0.01. Concomitantly, the incidence of IPD caused by serotypes not included in PCV7 increased from 29/100,000 to 109/100,000 (p=0.11. Conclusion: The mass immunization campaign using the PPSV23 in 2002 and the introduction of PCV7 for the routine immunization of infants induced important modifications in the epidemiology of IPD. IPD rates in Nunavik remain much higher than in the southern part of the province both in children and adults. More effective pneumococcal vaccines are needed to eliminate geographic disparities in IPD risk.

  19. Contagious comments: what was the online buzz about the 2011 Quebec measles outbreak?

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    Jennifer A Pereira

    Full Text Available BACKGROUND: Although interruption of endemic measles was achieved in the Americas in 2002, Quebec experienced an outbreak in 2011 of 776 reported cases; 80% of these individuals had not been fully vaccinated. We analyzed readers' online responses to Canadian news articles regarding the outbreak to better understand public perceptions of measles and vaccination. METHODS: We searched Canadian online English and French news sites for articles posted between April 2011 and March 2012 containing the words "measles" and "Quebec". We included articles that i concerned the outbreak or related vaccination strategies; and ii generated at least ten comments. Two English and two bilingual researchers coded the unedited comments, categorizing codes to allow themes to emerge. RESULTS: We analyzed 448 comments from 188 individuals, in response to three French articles and six English articles; 112 individuals expressed positive perceptions of measles vaccination (2.2 comments/person, 38 were negative (4.2 comments/person, 11 had mixed feelings (1.5 comments/person, and 27 expressed no opinion (1.1 comments/person. Vaccine-supportive themes involved the success of vaccination in preventing disease spread, societal responsibility to vaccinate for herd immunity, and refutation of the autism link. Those against measles vaccination felt it was a personal rather than societal choice, and conveyed a distrust of vaccine manufacturers, believing that measles infection is not only safe but safer than vaccination. Commenters with mixed feelings expressed uncertainty of the infection's severity, and varied in support of all vaccines based on perceived risk/benefit ratios. CONCLUSION: The anti-vaccine minority's volume of comments translates to a disproportionately high representation on online boards. Public health messages should address concerns by emphasizing that immunization is always a personal choice in Canada, and that the pharmaceutical industry is strictly

  20. Descriptive Epidemiology of Primary Biliary Cirrhosis in the Province of Quebec

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    Jean-Pierre Villeneuve


    Full Text Available Primary biliary cirrhosis (PBC is a rare disease, but is usually recognized because of the characteristic clinical picture and the diagnostic specificity of antimitochondrial antibody (AMA determination. Information on the epitlemiology of PBC is limited. The authors have examined the incidence and prevalence of PBC in the province of Quebec, where all short term hospitals are required to classify discharge summary diagnoses according to the International Classification of Diseases. Code 571.6 designates primary or secondary biliary cirrhosis. The authors reviewed the charts of all patients to whom this code was assigned during a six year period (1980-86. Two hundred and twenty-eight subjects satisfied predetermined diagnostic criteria for PBC. The mean annual incidence rate was 3.9 per 106 population, and the point prevalence in 1986 was 25.4 per 106 population. Ninety-two patients were female, with a mean age at the time of diagnosis of 55.7 years; 89.4% had positive AMA, and 10.5% were asymptomatic. As of January 1, 1989, 126 patients were alive, 91 had died, and 11 had undergone liver transplantation. Cumulative five and 10 year survivals from the time of initial diagnosis were 69% and 49%, respectively. In patients with serum bilirubins greater than 100 μmol/L (n=66, cumulative two year survival was 5.5%. These data indicate that the incidence and prevalence of PBC in Quebec arc similar to chose reported in Ontario and at the lower end of the range of chose reported in western Europe. The clinical features and evolution of PBC are also similar, and serum bilirubin is a major prognostic factor.

  1. Masters of convenience: competition, including a rising star from Quebec, improves the service station breed

    Energy Technology Data Exchange (ETDEWEB)

    Laverty Wilson, K.


    After a decade of extensive dismantling and reconstruction, changes in the downstream refining and marketing side of the petroleum industry have progressed to the point where downstream assets are once again considered to be among the strongest and most vital parts of the industry. Merchandising has become a way of life in gasoline service stations to the point where the service station of the 21. century will likely carry mass-consumption items from panty hose to sandwiches in addition to gasoline. Petro-Canada is in the forefront of rolling out the new-image service stations, while high traffic Esso locations are adding cafes serving doughnuts, muffins, bagels, soup and sandwiches in partnership with the Tim Horton's chain. In Canada, Quebec is way ahead of the other provinces in setting the high tone in the business of catering to consumers on wheels as demonstrated by the 1,932 retail sites of 'Couche-Tard', a name synonymous with gas pumps, fresh coffee and the myriad items offered in traditional convenience stores. With a total of 1,693 stores in Canada, 239 in the United States, 13,000 plus employees and more than 800 gas pumps (80 of them branded to in-house gasoline) Couche-Tard is the ninth largest convenience retailer in North America. The article describes the rise to prominence of the Couche-Tard empire, explains why circumstances in Quebec were ripe for this type of development, and offers a glimpse into the future of the likely further development of the retail gasoline market in the rest of Canada.

  2. Work-Related Respiratory Disorders in Persons Employed in Quebec Cotton Textile Mills – 1980 to 1995

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    Raymond Bégin


    Full Text Available Byssinosis, a chronic lung disease of cotton mill workers, is characterized by repeated episodes of reversible airway obstruction, which can lead to permanent alterations of lung function. When this occurs in Quebec the worker must be removed from further exposure in accordance with the provincial compensation rules. The current Quebec Occupational Safety and Health Regulation has a permissible exposure limit of 500 μg/m3, resulting in a prevalence rate of byssinosis of 2% to 5% in cotton workers. In this study the incidence of new respiratory disorders in persons employed in Quebec cotton mills from 1980 to 1995 was assessed and factors that identified byssinosis cases were analyzed. Incidence of the disease was assessed on the basis of cases referred to the Commission de Santé & Sécurité au travail du Québec (Quebec Workers’ Compensation Board from all Quebec textile plants. Analyses of age, years of employment, job description, smoking history, bronchial reactivity and lung function before and at work were used for diagnostic purposes. Incidence of new byssinosis cases from 1990 to 1995 was 2.8 cases per year per 5000 workers, slightly above the incidence from 1980 to 1989, at 1.7 cases per year. The incidence of chronic cases was stable at 1.5 cases per year, whereas that of early cases increased from 0.3 cases per year (1980 to 1989 to 1.25 cases per year (1990 to 1995. In comparison with chronic byssinosis cases, the average time of work before symptom appearance was 17±4 versus 32±1 years, P<0.001. Bronchial reactivity to methacholine (PC20 at work was below 2 mg/mL in 100% of byssinosis cases versus 14% in subjects not diagnosed with byssinosis. Decreases in forced expiratory volume in 1 s (FEV1 at work averaged 30% in the byssinosis and 6% in the nonbyssinosis subjects; peak flow rates were not different between those with and those without byssinosis. Early byssinosis cases were from three distinct plants in different

  3. How to reduce the petroleum dependency of Quebec? A ground breaking collective approach; Comment reduire la dependance quebecoise au petrole? Une demarche collective inedite

    Energy Technology Data Exchange (ETDEWEB)

    Bourke, Philippe; Caron-Malenfant, Julie


    Quebec population and socio economic agents are little or not summoned to in the definition of a vision relating to the dependency of Quebec to petroleum. The presented approach expects to include them as determining actors in the research for solutions to this collective issue, exploring aspects linked both to the energy consumption and production. The question to which the consultation is looking for answers is: How can Quebec reduce its petroleum consumption and increase its energy independence while promoting the harmonious economic and social development of its territory?. [French] La population et les agents socioeconomiques du Quebec sont peu ou pas interpelles dans la definition d'une vision entourant la dependance du Quebec au petrole. La demarche presentee prevoit les inclure comme acteurs determinants vers la recherche de solutions a cet enjeu collectif, explorant les aspects lies tant a la consommation qu'a la production energetique. La question a laquelle la consultation lancee cherchera des reponses est : Comment le Quebec peut-il diminuer sa consommation de petrole et accroitre son independance energetique tout en favorisant le developpement economique et social harmonieux de son territoire?.

  4. Desenvolvimento sustentável "made in Quebec": políticas de proteção ao meio ambiente e biotecnologias Sustainable development "made in Quebec": policies of environmental protection and biotechnology

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    Gilles Bibeau


    Full Text Available Sob um certo ângulo, os avanços técnico-científicos permitiram-nos "domesticar" a natureza. Este ensaio propõe-se a levantar a situação das políticas ambientais governamentais, principalmente no Quebec, que adotou em abril de 2006 a lei sobre o desenvolvimento sustentável. Nessa linha argumentativa, considero as mudanças no contexto dos recentes avanços das biotecnologias, que nos conferem sobretudo poderes até recentemente desconhecidos sobre a natureza, a vida e o ser humano. As diversas formas de intervenção dos governos do Canadá e do Quebec revelam um nítido crescimento da presença ativa do Estado, não somente nos setores tradicionais, mas também na bioindústria, onde o governo intervém cada vez mais. Os desafios, consequências e questões dessa realidade serão tratados sob a ótica de um novo humanismo.To a certain extent, the technical-scientific advances have allowed us to "tame" nature. This essay examines the situation of the governmental environmental policies, especially that of the state of Quebec, which adopted the law of sustainable development in April 2006. In this line of argument, this article considers the changes in the context of the recent advances in biotechnology, which give us an unprecedented power over nature, life and human beings. The diverse forms of intervention, from the governments of Canada and Quebec, are indicative of an increase in the active presence of the State, not only in the traditional sectors, but also in the bio-industry, in which the government intervenes more and more. The challenges, consequences and issues of this reality will be addressed from the perspective of a new humanism.

  5. Lake retention of manufactured nanoparticles

    NARCIS (Netherlands)

    Koelmans, A.A.; Quik, J.T.K.; Velzeboer, I.


    For twenty-five world lakes and three engineered nanoparticles (ENP), lake retention was calculated using a uniformly mixed lake mass balance model. This follows similar approaches traditionally used in water quality management. Lakes were selected such that lake residence times, depths and areal hy

  6. Low Fertility in Canada: The Nordic Model in Quebec and the U.S. Model in Alberta

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    Roderic Beaujot


    Full Text Available Among the factors that are responsible for low fertility, the risks experienced by young people are particularly relevant. In that context, it is noteworthy that fertility is rising most in Alberta and Quebec, that is in provinces where young families have had the security of either good job opportunities or supportive social policy. The fertility trend in Canada has seen a low point of 1.51 in 2002, rising to a total fertility rate of 1.66 in 2007. The trends and differences are placed in the context of family and work questions, including the division of paid and unpaid work by gender. By marital status, family structure and work orientation, fertility is highest for women and men who are married, with no step children and intermediate work orientation. We summarize the changing policy context, proposing that social policy has become more supportive of families with young children, especially in Quebec but also in the rest of Canada.

  7. La Belle Mort en Milieu Rural: a report of an ethnographic study of the good death for Quebec rural francophones. (United States)

    Veillette, Anne-Marie; Fillion, Lise; Wilson, Donna M; Thomas, Roger; Dumont, Serge


    An ethnographic study was undertaken in two rural areas of Quebec to conceptualize the good death. The findings reveal that a good quality of life for the dying person and his or her family and friends is essential for a good death. The resulting conceptual model emphasized four dimensions: physical, spiritual, social, and emotiona/psychological. These dimensions were determined to be similar to those discovered through a previous urban study, indicating that there may be considerable overlap between good deaths in rural and urban areas. Some findings of this Quebec French-language rural study were similar to those of an Alberta English-language rural study, indicating that rural people may have some common needs and interests with regard to the good death. As such, there could be some common elements of the good death that transcend culture or ethnicity. Chief among these is the desire of rural people to die at home or in their home communities.

  8. Normative data for the Rey-Osterrieth and the Taylor complex figure tests in Quebec-French people. (United States)

    Tremblay, Marie-Pier; Potvin, Olivier; Callahan, Brandy L; Belleville, Sylvie; Gagnon, Jean-François; Caza, Nicole; Ferland, Guylaine; Hudon, Carol; Macoir, Joël


    The Rey-Osterrieth (ROCF) and Taylor (TCF) complex figure tests are widely used to assess visuospatial and constructional abilities as well as visual/non-verbal memory. Normative data adjusted to the cultural and linguistic reality of older Quebec-French individuals is still nonexistent for these tests. In this article, we report the results of two studies that aimed to establish normative data for Quebec-French people (aged at least 50 years) for the copy, immediate recall, and delayed recall trials of the ROCF (Study 1) and the TCF (Study 2). For both studies, the impact of age, education, and sex on test performance was examined. Moreover, the impact of copy time on test performance, the impact of copy score on immediate and delayed recall score, and the impact of immediate recall score on delayed recall performance were examined. Based on regression models, equations to calculate Z scores for copy and recall scores are provided for both tests.

  9. Les cooperatives et l'electrification rurale du Quebec, 1945--1964 (United States)

    Dorion, Marie-Josee

    Cette these est consacree a l'histoire de l'electrification rurale du Quebec, et, plus particulierement, a l'histoire des cooperatives d'electricite. Fondees par vagues successives a partir de 1945, les cooperatives rurales d'electricite ont ete actives dans plusieurs regions du Quebec et elles ont electrifie une partie significative des zones rurales. Afin de comprendre le contexte de la creation des cooperatives d'electricite, notre these debute (premiere partie) par une analyse du climat sociopolitique des annees precedant la naissance du systeme cooperatif d'electrification rurale. Nous y voyons de quelle facon l'electrification rurale devient progressivement, a partir de la fin des annees 1920, une question d'actualite a laquelle les divers gouvernements qui se succedent tentent de trouver une solution, sans engager---ou si peu---les fonds de l'Etat. En ce sens, la premiere etatisation et la mise sur pied d'Hydro-Quebec, en 1944, marquent une rupture quant au mode d'action privilegie jusque-la. La nouvelle societe d'Etat se voit cependant retirer son mandat d'electrifier le monde rural un an apres sa fondation, car le gouvernement Duplessis, de retour au pouvoir, prefere mettre en place son propre modele d'electrification rurale. Ce systeme repose sur des cooperatives d'electricite, soutenues par un organisme public, l'Office de l'electrification rurale (OER). L'OER suscite de grandes attentes de la part des ruraux et c'est par centaines qu'ils se manifestent. Cet engouement pour les cooperatives complique la tache de l'OER, qui doit superviser de nouvelles societes tout en assurant sa propre organisation. Malgre des hesitations et quelques delais introduits par un manque de connaissances techniques et de personnel qualifie, les commissaires de l'OER se revelent perspicaces et parviennent a mettre sur pied un systeme cooperatif d'electrification rurale qui produit des resultats rapides. Il leur faudra cependant compter sur l'aide des autres acteurs engages

  10. The Certification of Teachers' Language Competence in Quebec in French and English: Two Different Perspectives? (United States)

    Laurier, Michel; Baker, Beverly


    Language tools are reflections of the academic traditions of assessment developers, as well as the perceptions of language quality as held by a society. The certification of Quebec's teachers offers an interesting case in point: the Québec Government's "ministère de l'Éducation, du Loisir et du Sport" (MELS) requires that…

  11. Identity profiles and well-being of multicultural immigrants: The case of Canadian immigrants living in Quebec

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    Joelle eCarpentier


    Full Text Available Studies worldwide point toward increased risk of mental health issues among immigrants. Immigrants’ ability to integrate the cultural identity of their new country has been found to be a key factor in their psychological well-being. Even though researchers agree on the crucial role of identity integration in immigrants’ well-being, the current literature has two main limitations: 1 researchers do not agree on the importance that should be allocated to each of the cultural identities, and 2 research has focused on bicultural individuals as opposed to multicultural individuals. The present paper proposes to study Canadians immigrants living in the province of Quebec who, because of the political and linguistic situation of the province, face the challenge of integrating two new cultural identities (Quebecer and Canadian to their original one. Specifically, cluster analysis was used to observe identity profiles that naturally emerge among 120 Canadian immigrants from the province of Quebec. Identity profiles were then compared on various indices of well-being to identify the optimal identity structure. In total, four identity profiles emerged, differing in their levels of identity coherence (i.e., similar levels of identification with each group and identification to either the original group or the Quebecers. ANOVA results confirmed that identity profiles differed in their average level of well-being. First, immigrants with coherent profiles displayed higher levels of well-being. Second, among incoherent profiles, the profile where identification to the original group is the highest showed the greatest well-being. Implications suggest that in order to maximize immigrants’ well-being, psychologists should focus on the coherence between cultural groups as well as identification to the original group.

  12. Development of a methodology to evaluate probable maximum precipitation (PMP) under changing climate conditions: Application to southern Quebec, Canada (United States)

    Rousseau, Alain N.; Klein, Iris M.; Freudiger, Daphné; Gagnon, Patrick; Frigon, Anne; Ratté-Fortin, Claudie


    Climate change (CC) needs to be accounted for in the estimation of probable maximum floods (PMFs). However, there does not exist a unique way to estimate PMFs and, furthermore the challenge in estimating them is that they should neither be underestimated for safety reasons nor overestimated for economical ones. By estimating PMFs without accounting for CC, the risk of underestimation could be high for Quebec, Canada, since future climate simulations indicate that in all likelihood extreme precipitation events will intensify. In this paper, simulation outputs from the Canadian Regional Climate Model (CRCM) are used to develop a methodology to estimate probable maximum precipitations (PMPs) while accounting for changing climate conditions for the southern region of the Province of Quebec, Canada. The Kénogami and Yamaska watersheds are herein of particular interest, since dam failures could lead to major downstream impacts. Precipitable water (w) represents one of the key variables in the estimation process of PMPs. Results of stationary tests indicate that CC will not only affect precipitation and temperature but also the monthly maximum precipitable water, wmax, and the ensuing maximization ratio used for the estimation of PMPs. An up-to-date computational method is developed to maximize w using a non-stationary frequency analysis, and then calculate the maximization ratios. The ratios estimated this way are deemed reliable since they rarely exceed threshold values set for Quebec, and, therefore, provide consistent PMP estimates. The results show an overall significant increase of the PMPs throughout the current century compared to the recent past.

  13. Practices and principles of combative syndicalism in the 2012 Quebec student strike = Práticas e principios de sindicalismo combativo na greve estudantil de 2012 no Quebec = Prácticas y principios del sindicalismo combativo en la huelga estudiantil de 2012 en Quebec

    Directory of Open Access Journals (Sweden)

    Sorochan, Cayley


    Full Text Available À semelhança de outros movimentos de protesto no século 21, os estudantes do Quebec articularam a sua demanda para a educação livre com uma crítica das políticas neoliberais, a lógica falha da austeridade e o enfraquecimento das instituições democráticas. Enquanto os participantes principais da luta eram estudantes, esta crítica social atraiu um número mais abrangente e diversificado de cidadãos, ativistas e organizações, resultando em um movimento de ampla base que, por um tempo, se tornou o centro das lutas políticas no Quebec

  14. Hydrography - Lakes Assessments - Non Attaining (United States)

    NSGIC GIS Inventory (aka Ramona) — This layer shows only non attaining lakes of the Integrated List. The Lakes Integrated List represents lake assessments in an integrated format for the Clean Water...

  15. Boat Dwellers of Weishan Lake

    Institute of Scientific and Technical Information of China (English)



    IN the south of Shandong Province, Weishan Lake is the largest freshwater lake in northern China. Under the bright blue sky, it gleams like a large mirror. "As the sun is about to set, Weishan Lake is quiet…" Humming

  16. Coordinated reactive power control to meet Quebec's interconnection requirements for wind power plants

    Energy Technology Data Exchange (ETDEWEB)

    El Itani, Samer; Dernbach, Matthias [REpower Systems SE (Germany). Applied Project Engineering; Williams, Stephen E.; Bishop, Martin T. [S and C Electric Company (United States). Power Quality Products Div.


    The 2 MW-class, DFIG-type wind turbine generator of REpower Systems constitutes a major portion of the wind power installations in Quebec. In collaboration with S and C Electric, a reactive power compensation and control strategy was developed to satisfy the interconnection requirements addressing reactive power and voltage control This paper demonstrates the proposed solution, which consists of local voltage control at the wind turbines, wind turbine reactive power coordination through the REpower Power Management Unit, substation based inverters, and the S and C DSTATCOM master plant-level control at the point of connection. Through time-domain simulations, the potential dynamic performance of the wind power plant is demonstrated under normal and faulted grid conditions, considering all system elements. The results show that the response of the wind plant to system voltage variations is fast, robust, and optimized with respect to the utilization of reactive power resources. The automatic voltage regulation system is capable of maintaining the voltage at the point of connection during normal operating conditions. Under fault conditions, extra reactive current is transiently released to the grid, thus providing indispensable support to the system voltage. (orig.)

  17. Trends of Hepatitis A hospitalization and risk factors in Quebec, Canada, between 1990 and 2003

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    Duval Bernard


    Full Text Available Abstract Background In Canada, targeted vaccination of at risk groups for hepatitis A (HA is done since the mid 1990s resulting in declining incidence. This study estimated the year and age specific hospitalization rates and distribution of risk factors for HA in Quebec, Canada, between 1990 and 2003. Methods Records of patients hospitalized with HA-related diagnostic codes were retrieved from the provincial database. Hospital charts of all deceased cases and a random sample of all other records were reviewed. Results From 1503 hospitalization records, 573 charts were reviewed including 49 (91% of the 54 deceased patients. Confirmed acute HA was present in 79% of records where HA was the primary diagnosis, and in 3%–8% of records where HA was a secondary diagnosis. From the total estimated number of hospitalizations, 96% had HA as the primary diagnosis. The hospitalization rate decreased from 1.06 per 100 000 person-years between 1990 and 1997 to 0.36 between 1998 and 2003. During the study period, 54% HA hospitalizations were in 20–39 year-olds. The overall case fatality ratio among hospitalized patients was 1.4%, increasing from 0.4% in those Conclusion HA hospitalization rates have been low since 1998 but the cause of this is unclear given the cyclical pattern of HA. Travel to endemic countries remains the most important risk factor and improved control of HA will require better strategies to vaccinate travelers.

  18. Crystallization and emplacement of the Lac St-Jean anorthosite massif (Quebec, Canada) (United States)

    Woussen, G.; Dimroth, E.; Corriveau, L.; Archer, P.


    The Lac St-Jean anorthosite massif underlies an area of over 20,000 km2 and has been emplaced into migmatitic gneisses of the central granulite terrain of the Grenville Province of the Canadian shield. Field data and petrography in an area straddling the anorthosite-gneiss contact, close to Chicoutimi (Quebec) permits an outline of its tecto-magmatic evolution. Depositional magmatic textures in the massif reveals that it crystallized from a magma in a relatively calm tectonic environment. The absence of fusion in pelitic gneisses at the contact proves that the crystallization did not take place at the level presently exposed. The parallelism of subvertical foliation in the enveloping gneisses and the anorthosite indicates that both were deformed together. It is suggested that the deformation results from a diapiric ascent of the anorthosite massif after its consolidation at depth. The depth of consolidation of the anorthosite is estimated at ˜ 25 30 km from subsolidus reaction between plagioclase and olivine. The diapiric ascent is further substantiated by the fact that three sets of mafic dykes of different ages, intrusive into the anorthosite, have a mineralogy which indicates successively decreasing P, T conditions of emplacement from granulite fades to amphibolite facies. An evolution of the basement gneisses and the anorthosite is proposed as a working hypothesis; it relies on the fact that metabasite dyke swarms in the basement gneisses represent a period of major crustal extension and could be used as a stratigraphic subdivision of the Grenville Province.

  19. Landsat-TM-Based Discrimination of Lithological Units Associated with the Purtuniq Ophiolite, Quebec, Canada

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    Wooil M. Moon


    Full Text Available In order to better constrain the utility of multispectral datasets in the characterization of surface materials, Landsat Thematic Mapper (TM data were evaluated in the discrimination of geological classes in the Cape Smith Belt of Quebec, a greenstone belt that hosts Early Proterozoic units including those of the Purtuniq ophiolite. Ground-based measurements collected for the study area highlight the importance of chemical alteration in controlling the reflectance properties of key geological classes. The spatial distribution of exposed lithologies in the study area was determined through (1 image classification using a feedforward backpropagation neural network classifier; and (2 generation of fraction images for spectral end members using a linear unmixing algorithm and ground reflectance data. Despite some shortcomings, the database of surface cover generated by the neural network classifier is a useful representation of the spatial distribution of exposed geological materials in the study area, with an overall agreement with ground truth of 87.7%. In contrast, the fraction images generated through unmixing are poor representations of ground truth for several key lithological classes. These results underscore both the considerable utility and marked limitations of Landsat TM data in the mapping of igneous and metamorphic lithologies.

  20. Genetic heterogeneity in regional populations of Quebec--parental lineages in the Gaspe Peninsula. (United States)

    Moreau, Claudia; Vézina, Hélène; Yotova, Vania; Hamon, Robert; de Knijff, Peter; Sinnett, Daniel; Labuda, Damian


    Stable colonization of the Gaspe Peninsula by Europeans started in the middle of the 18th century at the time of the British conquest of New France. The earliest settlers were Acadians, escaping British deportation policies, followed by Loyalists from the US, who preferred to remain under British rule after the Declaration of Independence. In the 19th century, the developing fishing industry attracted French Canadians from the St. Lawrence Valley and newcomers from Europe including Channel Islanders from Jersey and Guernsey. We analyzed parental lineages of the self-declared descendants of these four groups of settlers by mtDNA D-loop sequencing and Y-chromosome genotyping and compared them with French, British, and Irish samples. Their representation in terms of haplotype frequency classes reveals different signatures of founder effects, such as a loss of rare haplotypes, modification of intermediate frequency haplotypes, reduction in genetic diversity (seen in Acadians), but also enrichment by admixture. Parental lineages correlate with group identity. Descendants of early settlers, Acadians and Loyalists, preserved their identity more than those of French Canadian and Channel Islander "latecomers." Although overall genetic diversity among Gaspesians is comparable with their European source populations, F(ST) analysis indicated their greater differentiation. Distinct settlement history, a limited number of founders and relative genetic isolation contributed to the regionalization of the Quebec gene pool that appears less homogenous than usually anticipated.

  1. The 'common knowledge' of Quebecers: quantifying the evidence of historians testifying for defendant tobacco companies. (United States)

    Callard, Cynthia


    The 'common knowledge' defence is a legal strategy which has been successfully used by defendant tobacco companies to avoid legal responsibility for the harms caused by smoking. Tobacco companies have hired professional historians to try to persuade courts about a longstanding high level of public awareness regarding the risks of tobacco use. To support this argument, they have used archival news clippings and media reports. Two historians were hired by tobacco companies to offer this defence during a recent class action trial in Canada, following which they were required to submit to the court the collection of media materials which had been gathered by history students to assist their testimony. Included in this collection were tobacco advertisements and other news items about tobacco products which the students had inadvertently also collected. Quantifying this collection reveals that even by the tobacco industry's own construct, the information environment surrounding Quebec smokers in the middle 20th century included more prosmoking messages than information about the risks of smoking.

  2. Marine lakes of Indonesia

    NARCIS (Netherlands)

    Becking, Leontine Elisabeth


    The objective of this thesis was to obtain insight into the processes that play a role in biodiversity patterns of tropical marine species by using marine lakes as a model. Marine lakes are landlocked water bodies that maintain a marine character through narrow submarine connections to the sea. Two

  3. Lake trout in northern Lake Huron spawn on submerged drumlins (United States)

    Riley, Stephen C.; Binder, Thomas; Wattrus, Nigel J.; Faust, Matthew D.; Janssen, John; Menzies, John; Marsden, J. Ellen; Ebener, Mark P.; Bronte, Charles R.; He, Ji X.; Tucker, Taaja R.; Hansen, Michael J.; Thompson, Henry T.; Muir, Andrew M.; Krueger, Charles C.


    Recent observations of spawning lake trout Salvelinus namaycush near Drummond Island in northern Lake Huron indicate that lake trout use drumlins, landforms created in subglacial environments by the action of ice sheets, as a primary spawning habitat. From these observations, we generated a hypothesis that may in part explain locations chosen by lake trout for spawning. Most salmonines spawn in streams where they rely on streamflows to sort and clean sediments to create good spawning habitat. Flows sufficient to sort larger sediment sizes are generally lacking in lakes, but some glacial bedforms contain large pockets of sorted sediments that can provide the interstitial spaces necessary for lake trout egg incubation, particularly if these bedforms are situated such that lake currents can penetrate these sediments. We hypothesize that sediment inclusions from glacial scavenging and sediment sorting that occurred during the creation of bedforms such as drumlins, end moraines, and eskers create suitable conditions for lake trout egg incubation, particularly where these bedforms interact with lake currents to remove fine sediments. Further, these bedforms may provide high-quality lake trout spawning habitat at many locations in the Great Lakes and may be especially important along the southern edge of the range of the species. A better understanding of the role of glacially-derived bedforms in the creation of lake trout spawning habitat may help develop powerful predictors of lake trout spawning locations, provide insight into the evolution of unique spawning behaviors by lake trout, and aid in lake trout restoration in the Great Lakes.

  4. Lake metabolism scales with lake morphometry and catchment conditions

    DEFF Research Database (Denmark)

    Stæhr, Peter A.; Baastrup-Spohr, Lars; Jensen, Kaj Sand;


    We used a comparative data set for 25 lakes in Denmark sampled during summer to explore the influence of lake morphometry, catchment conditions, light availability and nutrient input on lake metabolism. We found that (1) gross primary production (GPP) and community respiration (R) decline with lake...... area, water depth and drainage ratio, and increase with algal biomass (Chl), dissolved organic carbon (DOC) and total phosphorus (TP); (2) all lakes, especially small with less incident light, and forest lakes with high DOC, have negative net ecosystem production (NEP ... decreases with lake area and water depth as a consequence of lower input of nutrients and organic matter per unit water volume; (4) the influence of benthic processes on free water metabolic measures declines with increasing lake size; and (5) with increasing lake size, lake metabolism decreases...

  5. Regulação múltipla e autonomia profissional dos professores: comparação entre o Quebec e o Canadá Multiple regulation and teacher's professional autonomy: comparisons between Quebec and Canada

    Directory of Open Access Journals (Sweden)

    Claude Lessard


    Full Text Available Este artigo traz uma análise comparativa Canadá/Quebec de interrelações: de um lado, três modelos de regulação da educação (a burocracia estatal, a profissão e o mercado; e, de outro, a autonomia profissional dos professores. A noção de autonomia profissional dos professores, tal como é veiculada pelas associações profissionais e sindicatos canadenses e quebequenses, permite analisar a evolução desses modos de regulação. Adotando um ponto de vista neo-institucionalista, o artigo mostra que a autonomia profissional reivindicada ou defendida pelos professores como por suas associações sindicais repousa mais sobre as atividades percebidas como centrais por esses atores que sobre aquelas ditas periféricas. Isto permite compreender a força da reação no restante do Canadá contra a centralização do currículo e a padronização da avaliação da aprendizagem e a relativa acomodação dos professores quebequenses à participação nos conselhos escolares e na participação dos pais. Nesses dois contextos, entretanto, constatamos uma resistência à reorganização do trabalho dos professores.The paper deals with the relationships between models of regulation (bureaucratic, professionnal and market of education and teacher autonomy. As espoused by professional and labour associations of Canada and Quebec, teacher autonomy is used to disclose the evolution of models of educational regulation. Adopting a neo-institutionalist point of view, the paper argues that teacher autonomy, as promoted by canadian teacher unions, refers to activities considered central of teachers' work, as opposed to peripheral activities. This distinction helps understand why in Canada a strong reaction against curriculum centralization and standardization of evaluation has been observed, whereas Quebec teachers' unions seem to accommodate themselves with an increase in parental power. In both contexts (Canada and Quebec, a strong resistance to work

  6. Yellowstone lake nanoarchaeota. (United States)

    Clingenpeel, Scott; Kan, Jinjun; Macur, Richard E; Woyke, Tanja; Lovalvo, Dave; Varley, John; Inskeep, William P; Nealson, Kenneth; McDermott, Timothy R


    Considerable Nanoarchaeota novelty and diversity were encountered in Yellowstone Lake, Yellowstone National Park (YNP), where sampling targeted lake floor hydrothermal vent fluids, streamers and sediments associated with these vents, and in planktonic photic zones in three different regions of the lake. Significant homonucleotide repeats (HR) were observed in pyrosequence reads and in near full-length Sanger sequences, averaging 112 HR per 1349 bp clone and could confound diversity estimates derived from pyrosequencing, resulting in false nucleotide insertions or deletions (indels). However, Sanger sequencing of two different sets of PCR clones (110 bp, 1349 bp) demonstrated that at least some of these indels are real. The majority of the Nanoarchaeota PCR amplicons were vent associated; however, curiously, one relatively small Nanoarchaeota OTU (71 pyrosequencing reads) was only found in photic zone water samples obtained from a region of the lake furthest removed from the hydrothermal regions of the lake. Extensive pyrosequencing failed to demonstrate the presence of an Ignicoccus lineage in this lake, suggesting the Nanoarchaeota in this environment are associated with novel Archaea hosts. Defined phylogroups based on near full-length PCR clones document the significant Nanoarchaeota 16S rRNA gene diversity in this lake and firmly establish a terrestrial clade distinct from the marine Nanoarcheota as well as from other geographical locations.

  7. Yellowstone Lake Nanoarchaeota

    Directory of Open Access Journals (Sweden)

    Scott eClingenpeel


    Full Text Available Considerable Nanoarchaeota novelty and diversity were encountered in Yellowstone Lake, Yellowstone National Park, where sampling targeted lake floor hydrothermal vent fluids, streamers and sediments associated with these vents, and in planktonic photic zones in three different regions of the lake. Significant homonucleotide repeats (HR were observed in pyrosequence reads and in near full-length Sanger sequences, averaging 112 HR per 1,349 bp clone and could confound diversity estimates derived from pyrosequencing, resulting in false nucleotide insertions or deletions (indels. However, Sanger sequencing of two different sets of PCR clones (110 bp, 1349 bp demonstrated that at least some of these indels are real. The majority of the Nanoarchaeota PCR amplicons were vent associated; however, curiously, one relatively small Nanoarchaeota OTU (70 pyrosequencing reads was only found in photic zone water samples obtained from a region of the lake furthest removed from the hydrothermal regions of the lake. Extensive pyrosequencing failed to demonstrate the presence of an Ignicoccus lineage in this lake, suggesting the Nanoarchaeota in this environment are associated with novel Archaea hosts. Defined phylogroups based on near full-length PCR clones document the significant Nanoarchaeota 16S rRNA gene diversity in this lake and firmly establish a terrestrial clade distinct from the marine Nanoarcheota as well as from other geographical locations.

  8. Médicarte software developed for the Quebec microprocessor health card project. (United States)

    Lavoie, G; Tremblay, L; Durant, P; Papillon, M J; Bérubé, J; Fortin, J P


    The Quebec Patient Smart Card Project is a Provincial Government initiative under the responsibility of the Rgie de l'assurance-maladie du Québec (Quebec Health Insurance Board). Development, implementation, and assessment duties were assigned to a team from Université Laval, which in turn joined a group from the Direction de la santé publique du Bas-St-Laurent in Rimouski, where the experiment is taking place. The pilot project seeks to evaluate the use and acceptance of a microprocessor card as a way to improve the exchange of clinical information between card users and various health professionals. The card can be best described as a résumé containing information pertinent to an individual's health history. It is not a complete medical file; rather, it is a summary to be used as a starting point for a discussion between health professionals and patients. The target population is composed of persons 60 years and over, pregnant women, infants under 18 months, and the residents of a small town located in the target area, St-Fabien, regardless of age. The health professionals involved are general practitioners, specialists, pharmacists, nurses, and ambulance personnel. Participation in the project is on a voluntary basis. Each health care provider participating in the project has a personal identification number (PIN) and must use both an access card and a user card to access information. This prevents unauthorized access to a patient's card and allows the staff to sign and date information entered onto the patient card. To test the microprocessor card, we developed software based on a problem-oriented approach integrating diagnosis, investigations, treatments, and referrals. This software is not an expert system that constrains the clinician to a particular decisional algorithm. Instead, the software supports the physician in decision making. The software was developed with a graphical interface (Windows 3.1) to maximize its user friendliness. A version of the

  9. Ecology of playa lakes (United States)

    Haukos, David A.; Smith, Loren M.


    Between 25,000 and 30,000 playa lakes are in the playa lakes region of the southern high plains (Fig. 1). Most playas are in west Texas (about 20,000), and fewer, in New Mexico, Oklahoma, Kansas, and Colorado. The playa lakes region is one of the most intensively cultivated areas of North America. Dominant crops range from cotton in southern areas to cereal grains in the north. Therefore, most of the native short-grass prairie is gone, replaced by crops and, recently, grasses of the Conservation Reserve Program. Playas are the predominant wetlands and major wildlife habitat of the region.More than 115 bird species, including 20 species of waterfowl, and 10 mammal species have been documented in playas. Waterfowl nest in the area, producing up to 250,000 ducklings in wetter years. Dominant breeding and nesting species are mallards and blue-winged teals. During the very protracted breeding season, birds hatch from April through August. Several million shorebirds and waterfowl migrate through the area each spring and fall. More than 400,000 sandhill cranes migrate through and winter in the region, concentrating primarily on the larger saline lakes in the southern portion of the playa lakes region.The primary importance of the playa lakes region to waterfowl is as a wintering area. Wintering waterfowl populations in the playa lakes region range from 1 to 3 million birds, depending on fall precipitation patterns that determine the number of flooded playas. The most common wintering ducks are mallards, northern pintails, green-winged teals, and American wigeons. About 500,000 Canada geese and 100,000 lesser snow geese winter in the playa lakes region, and numbers of geese have increased annually since the early 1980’s. This chapter describes the physiography and ecology of playa lakes and their attributes that benefit waterfowl.

  10. Effects of insecticide use on breeding birds in Christmas tree plantations in Quebec. (United States)

    Rondeau, G; Desgranges, J L


    : This research, which was carried out in the spring of 1989 and 1990 in seven balsam fir (Abies balsamea) plantations in southeastern Quebec, examines potential deleterious effects of three insecticides (i.e. dimethoate, diazinon and insecticidal soap) on breeding American Robins (Turdus migratorius) (n=87 nests) and Song Sparrows (Melospizsa melodia) (n=41 nests). Through analyses of blood serum cholinesterases (AChE and BChE) activity both prior to and the second day following applications of the two organophosphorus insecticides, we showed that adult American Robins, Song Sparrows and Chipping Sparrows (Spizella passerina) breeding in the treated plantations were exposed to diazinon and dimethoate (p<0.05). Signs of exposure to diazinon (p<0.05) were also found in young American Robins. However, despite sharp reductions in blood ChE (and, in some cases, marked inhibition confirmed by 2-PAM reactivation), no cases of adult mortality were recorded following the treatments. Cases of complete or partial mortality were recorded in American Robin and Song Sparrow nests, even among control birds (non-exposed birds). No mortality was recorded for broods exposed to the insecticidal soap. Abandonment of nests and egg infertility were ruled out as possible causes of mortality. The cases of total mortality observed in American Robin and Song Sparrow broods exposed to dimethoate were similar to those recorded for control nests (18 and 25% compared to 14 and 21%, respectively). However, among American Robin and Song Sparrow nestlings exposed to diazinon, essentially twice as many cases of total mortality (31 and 38%, respectively) were recorded as for the control nests. It appears that American Robin eggs are sensitive to diazinon and dimethoate, particularly when spraying is carried out early in the incubation stage. In the case of the Song Sparrow, it is mainly the nestlings that succumb after diazinon is sprayed on them or when dimethoate applications are made during the

  11. Myotonic dystrophy in Quebec: geographical distribution and concept of genetic homogeneity. (United States)

    Laberge, C


    The geographical distribution relative to place of residence of patients with myotonic dystrophy (MD) and admitted to a Quebec hospital during a five year period (1980-1984) is presented and discussed. The sample consists of 72 males and 68 females of varying ages over 10 years. Analysis of the data shows a North Shore distribution of patients in a cline from Saguenay-Lac-St-Jean, through Québec City and to Montréal. However, a low prevalence is apparent on the South Shore, east of Québec City, for which an historical and genealogical explanation are discussed. This geographic distribution favours the hypothesis of genetic homogeneity for the MD gene in the Québec population. A stronger second argument comes from genealogical studies of 10 families sampled from the Chicoutimi Muscular Dystrophy Clinic. Genealogical paths traced to ancestors who founded Charlevoix for these 10 families go back to a cluster of 25 founders, one of whom must have been the carrier of the MD gene. The probative third argument for genetic homogeneity comes from the allelic distribution of the apolipoprotein E (ApoE) gene in the Québec City, Saguenay and in families with MD. The ApoE locus is on chromosome 19 and closely linked to MD. In MD-affected individuals there is a linkage disequilibrium for the epsilon 4 allele while non-MD members of these families show allelic frequencies not differing significantly from the control population.(ABSTRACT TRUNCATED AT 250 WORDS)

  12. Anthropogenic and natural methane emissions from a shale gas exploration area of Quebec, Canada. (United States)

    Pinti, Daniele L; Gelinas, Yves; Moritz, Anja M; Larocque, Marie; Sano, Yuji


    The increasing number of studies on the determination of natural methane in groundwater of shale gas prospection areas offers a unique opportunity for refining the quantification of natural methane emissions. Here methane emissions, computed from four potential sources, are reported for an area of ca. 16,500km(2) of the St. Lawrence Lowlands, Quebec (Canada), where Utica shales are targeted by the petroleum industry. Methane emissions can be caused by 1) groundwater degassing as a result of groundwater abstraction for domestic and municipal uses; 2) groundwater discharge along rivers; 3) migration to the surface by (macro- and micro-) diffuse seepage; 4) degassing of hydraulic fracturing fluids during first phases of drilling. Methane emissions related to groundwater discharge to rivers (2.47×10(-4) to 9.35×10(-3)Tgyr(-1)) surpass those of diffuse seepage (4.13×10(-6) to 7.14×10(-5)Tgyr(-1)) and groundwater abstraction (6.35×10(-6) to 2.49×10(-4)Tgyr(-1)). The methane emission from the degassing of flowback waters during drilling of the Utica shale over a 10- to 20-year horizon is estimated from 2.55×10(-3) to 1.62×10(-2)Tgyr(-1). These emissions are from one third to sixty-six times the methane emissions from groundwater discharge to rivers. This study shows that different methane emission sources need to be considered in environmental assessments of methane exploitation projects to better understand their impacts.

  13. Relationship between multimorbidity and physical activity: Secondary analysis from the Quebec health survey

    Directory of Open Access Journals (Sweden)

    Soubhi Hassan


    Full Text Available Abstract Background Abundant literature supports the beneficial effects of physical activity for improving health of people with chronic diseases. The relationship between multimorbidity and physical activity levels, however, has been little evaluated. The purpose of the current exploratory study was to examine the relationship between a multimorbidity and physical activity levels, and b long-term limitations on activity, self-rated general health, psychological distress, and physical activity levels for each sex in adults, after age, education, income, and employment factors were controlled for. Methods Data from the Quebec Health Survey 1998 were used. The sample included 16,782 adults 18–69 yr of age. Independent variables were multimorbidity, long-term limitations on activity, self-rated general health, and psychological distress. The dependent variable was physical activity levels. Links between the independent and dependent variables were assessed separately for men and women with multinomial regressions while accounting for the survey sampling design and household clustering. Results About 46% of the participants were men. Multimorbidity was not associated with physical activity levels for either men or women. Men and women with long-term limitations on activity and with poor-to-average self-rated general health were less likely to be physically active. No relationship between psychological distress and physical activity was found for men. Women with high levels of psychological distress were less likely to be physically active. Conclusion Multimorbidity was not associated with physical activity levels in either sex, when age, education, income, and employment factors were controlled for. Long-term limitations on activity and poor-to-average self-rated general health seem related to a reduction in physical activity levels for both sexes, whereas psychological distress was associated with a reduction in physical activity levels only

  14. Hydraulic properties and scale effects investigation in regional rock aquifers, south-western Quebec, Canada (United States)

    Nastev, M.; Savard, M. M.; Lapcevic, P.; Lefebvre, R.; Martel, R.

    This paper reports on the characterization of hydraulic properties of regional rock aquifers carried out within a groundwater resources assessment project in the St. Lawrence Lowlands of south-western Quebec. To understand the aquifer behavior at both the fracture level and at field scale, hydraulic investigations were carried out using various aquifer tests. The groundwater flow at the local scale is controlled mostly by the fracture system. Results of the constant-head injection tests show a weak decreasing trend of hydraulic conductivity with depth indicating that a major part of the groundwater flow occurs in the first meters of the rock sequence. At the regional scale, the equivalent porous media approach is applicable. The hydraulic conductivity measurements were correlated to the scale of the aquifer tests expressed with the investigated aquifer volume. A simple interpolation procedure for the hydraulic conductivity field was developed based on the distance between field measurements and the tested aquifer volumes. The regional distribution of the hydraulic conductivity for the major fractured aquifer units indicates that dolostone is the most permeable whereas sandstone and crystalline rocks are the least permeable units. Este artículo trata de la caracterización de las propiedades hidráulicas en acuíferos regionales rocosos, la cual se llevó a cabo dentro del proyecto de evaluación de los recursos de agua subterránea en St. Lawrence Lowlands al suroeste de Quebec. Para entender el comportamiento del acuífero tanto a nivel de fractura como a escala del campo, se ejecutaron investigaciones hidráulicas usando varias pruebas de acuífero. El flujo del agua subterránea a escala local está controlado principalmente por el sistema de fracturas. Los resultados de las pruebas de inyección con cabeza constante muestran una tendencia decreciente débil de la conductividad hidráulica con la profundidad, indicando que la mayor parte del flujo de agua

  15. IRSL dating of Middle Pleistocene interglacial sediments from southern Quebec (Canada) using multiple and single grain aliquots (United States)

    Balescu, S.; Lamothe, M.; Auclair, M.; Shilts, W.W.


    The IRSL dating of Middle Pleistocene interglacial fluvial sediments from Southern Quebec, correlated with oxygen isotopic stage 7, yields optical dates much younger than the expected geological age. Single grain IRSL measurements on alkali-feldspars, following the fadia protocol developed by Lamothe and Auclair (Earth and Planetary Science Letters, 171, 319-323, 1999), suggest that anomalous fading is the most probable cause for this severe age underestimation. The IRSL dates corrected for this anomalous fading are in better agreement with the expected ages. ?? 2000 Elsevier Science Ltd.

  16. Can lake sensitivity to desiccation be predicted from lake geometry? (United States)

    Torabi Haghighi, Ali; Menberu, Meseret Walle; Aminnezhad, Mousa; Marttila, Hannu; Kløve, Bjørn


    Declining lake levels (Aral Sea syndrome) can be caused by changes in climate, increased water use or changed regulation patterns. This paper introduces a novel lake geometry index (LGI) to quantify lake hydrological characteristics. The index was developed using a large representative dataset of lake hypsographic characteristics from 152 lakes and man-made reservoirs. Using the LGI index, lakes can be classified into five groups: groups 1-4 when LGI is 0.5-2.5, 2.5-4.5, 4.5-6.5 and 6.5-8.5, respectively, and group 5 when LGI is >8.5. Naturally shallow and vast lakes and wetlands fall into the first group and deep man-made reservoirs in narrow valleys are in group 5. The response of three different lake systems (LGI 0.75, 2.75 and 6.5) to different water flow scenarios was then simulated using the water balance equation. From this, the index 'potential lake area' (Apot) was developed to show lake responses to changed hydro-climatological conditions. Apot and LGI can be used to classify lakes into open or closed systems. Simulations showed that lakes with low LGI have a shorter response time to flow and climate changes. As a result, the impact of water balance restoration is faster for lakes with low LGI than for lakes with high LGI. The latter are also more vulnerable to climate variation and change.

  17. Lake Level Reconstructions (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Records of past lake levels, mostly related to changes in moisture balance (evaporation-precipitation). Parameter keywords describe what was measured in this data...

  18. Halls Lake 1990 (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Salt marsh habitats along the shoreline of Halls Lake are threatened by wave erosion, but the reconstruction of barrier islands to reduce this erosion will modify or...

  19. Lake Transect : 1989 (United States)

    US Fish and Wildlife Service, Department of the Interior — This document summarizes transect surveys that were done at four different lakes on St. Vincent National Wildlife Refuge in 1989. Lists of the plant species found...

  20. Sunk Lake Natural Area (United States)

    US Fish and Wildlife Service, Department of the Interior — The Sunk Lake Natural Area Management Plan guides the long-range development of the Natural Area by identifying and integrating appropriate habitats, management...

  1. Lake Transect : 1986 (United States)

    US Fish and Wildlife Service, Department of the Interior — This document summarizes transect surveys that were done at four different lakes on St. Vincent National Wildlife Refuge in 1986. Lists of the plant species found at...

  2. History of Lake Andes (United States)

    US Fish and Wildlife Service, Department of the Interior — Information about the history and management of Lake Andes is compiled in this report. It is intended to help future refuge managers become acquainted with the...

  3. Great Lakes Ice Charts (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Charts show ice extent and concentration three times weekly during the ice season, for all lakes except Ontario, from the 1973/74 ice season through the 2001/2002...

  4. Is Lake Tahoe Terminal? (United States)

    Coats, R. N.; Reuter, J.; Heyvaert, A.; Lewis, J.; Sahoo, G. B.; Schladow, G.; Thorne, J. H.


    Lake Tahoe, an iconic ultra-oligotrophic lake in the central Sierra Nevada, has been studied intensively since 1968, with the goal of understanding and ultimately controlling its eutrophication and loss of clarity. Research on the lake has included a) periodic profiles of primary productivity, nutrients, temperature, and plankton; b) Secchi depth; c) nutrient limitation experiments; d) analysis of sediment cores; e) radiocarbon dating of underwater in-place tree stumps; g) analysis of long-term temperature trends. Work in its watershed has included a) monitoring of stream discharge, sediment and nutrients at up to 20 stream gaging stations; b) monitoring of urban runoff water quality at selected sites; c) development of a GIS data base, including soils, vegetation, and land use. Based on these studies, we know that a) primary productivity in the lake is limited by phosphorus, and continues to increase; b) the loss of clarity continues, but at a declining rate; c) the lake has been warming since 1970, and its resistance to deep mixing is increasing; d) historically the lake level drops below the outlet elevation about one year in seven; e) 6300 to 4300 yrs BP lake level was below the present outlet elevation long enough for large trees to grow; f) the date of the peak snowmelt runoff is shifting toward earlier dates; g) after accounting for annual runoff, loads of nutrients and suspended sediment have declined significantly in some basin streams since 1980. Downscaled outputs from GCM climatic models have recently been used to drive hydrologic models and a lake clarity model, projecting future trends in the lake and watersheds. Results show a) the temperature and thermal stability will likely continue to increase, with deep mixing shutting down in the latter half of this century; b) the lake may drop below the outlet for an extended period beginning about 2085; c) the annual snowpack will continue to decline, with earlier snowmelt and shift from snowfall to rain; d

  5. Chase Lake Wetland Management District, Chase Lake National Wildlife Refuge, Chase Lake Prairie Project: Annual narrative report: 1997 (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for Chase Lake WMD, Chase Lake NWR, Chase Lake Prairie Project, and Halfway Lake NWR outlines Refuge accomplishments during the 1997...

  6. Resilience and Restoration of Lakes

    Directory of Open Access Journals (Sweden)

    Kathryn L. Cottingham


    Full Text Available Lake water quality and ecosystem services are normally maintained by several feedbacks. Among these are nutrient retention and humic production by wetlands, nutrient retention and woody habitat production by riparian forests, food web structures that cha nnel phosphorus to consumers rather than phytoplankton, and biogeochemical mechanisms that inhibit phosphorus recycling from sediments. In degraded lakes, these resilience mechanisms are replaced by new ones that connect lakes to larger, regional economi c and social systems. New controls that maintain degraded lakes include runoff from agricultural and urban areas, absence of wetlands and riparian forests, and changes in lake food webs and biogeochemistry that channel phosphorus to blooms of nuisance al gae. Economic analyses show that degraded lakes are significantly less valuable than normal lakes. Because of this difference in value, the economic benefits of restoring lakes could be used to create incentives for lake restoration.

  7. Is Lake Chabot Eutrophic? (United States)

    Pellegrini, K.; Logan, J.; Esterlis, P.; Lew, A.; Nguyen, M.


    Introduction/Abstract: Lake Chabot is an integral part of the East Bay watershed that provides habitats for animals and recreation for humans year-round. Lake Chabot has been in danger of eutrophication due to excessive dumping of phosphorous and nitrogen into the water from the fertilizers of nearby golf courses and neighboring houses. If the lake turned out to be eutrophified, it could seriously impact what is currently the standby emergency water supply for many Castro Valley residents. Eutrophication is the excessive richness of nutrients such as nitrogen and phosphorus in a lake, usually as a result of runoff. This buildup of nutrients causes algal blooms. The algae uses up most of the oxygen in the water, and when it dies, it causes the lake to hypoxify. The fish in the lake can't breathe, and consequently suffocate. Other oxygen-dependant aquatic creatures die off as well. Needless to say, the eutrophication of a lake is bad news for the wildlife that lives in or around it. The level of eutrophication in our area in Northern California tends to increase during the late spring/early summer months, so our crew went out and took samples of Lake Chabot on June 2. We focused on the area of the lake where the water enters, known on the map as Honker Bay. We also took readings a ways down in deeper water for comparison's sake. Visually, the lake looked in bad shape. The water was a murky green that glimmered with particulate matter that swirled around the boat as we went by. In the Honker Bay region where we focused our testing, there were reeds bathed in algae that coated the surface of the lake in thick, swirling patterns. Surprisingly enough, however, our test results didn't reveal any extreme levels of phosphorous or nitrogen. They were slightly higher than usual, but not by any significant amount. The levels we found were high enough to stimulate plant and algae growth and promote eutrophication, but not enough to do any severe damage. After a briefing with a


    The Product is the paper "Pulp and Paper Mills as Sources of Toxaphene to Lake Superior and Northern Lake Michigan" published in the Journal of Great Lakes Research, 25(2):383-394 International Association of Great Lakes 1999.

  9. Tewaukon – Clouds LakeLake Elsie – Storm Lake and Wild Rice Refuges Narrative Reports : 1939-1956 : From Sand Lake National Wildlife Refuge (United States)

    US Fish and Wildlife Service, Department of the Interior — These narrative reports summarize refuge activities from 1939 to 1956 for Lake Tewaukon Refuge, Clouds Lake Refuge, Lake Elsie Refuge, Storm Lake Refuge, Wild Rice...

  10. Development and Implementation of a Registry of Patients Attending Multidisciplinary Pain Treatment Clinics: The Quebec Pain Registry (United States)

    Lanctôt, H.; Beaudet, N.; Boulanger, A.; Bourgault, P.; Cloutier, C.; De Koninck, Y.; Dion, D.; Dolbec, P.; Germain, L.; Sarret, P.; Shir, Y.; Taillefer, M.-C.; Trépanier, A.; Truchon, R.


    The Quebec Pain Registry (QPR) is a large research database of patients suffering from various chronic pain (CP) syndromes who were referred to one of five tertiary care centres in the province of Quebec (Canada). Patients were monitored using common demographics, identical clinical descriptors, and uniform validated outcomes. This paper describes the development, implementation, and research potential of the QPR. Between 2008 and 2013, 6902 patients were enrolled in the QPR, and data were collected prior to their first visit at the pain clinic and six months later. More than 90% of them (mean age ± SD: 52.76 ± 4.60, females: 59.1%) consented that their QPR data be used for research purposes. The results suggest that, compared to patients with serious chronic medical disorders, CP patients referred to tertiary care clinics are more severely impaired in multiple domains including emotional and physical functioning. The QPR is also a powerful and comprehensive tool for conducting research in a “real-world” context with 27 observational studies and satellite research projects which have been completed or are underway. It contains data on the clinical evolution of thousands of patients and provides the opportunity of answering important research questions on various aspects of CP (or specific pain syndromes) and its management. PMID:28280406

  11. Trends in attitudes toward people living with HIV, homophobia, and HIV transmission knowledge in Quebec, Canada (1996, 2002, and 2010). (United States)

    Adrien, Alix; Beaulieu, Marianne; Leaune, Viviane; Perron, Michèle; Dassa, Clément


    People living with HIV (PWHIV) face negative attitudes that isolate and discourage them from accessing services. Understanding negative attitudes and the social environment can lead to more effective health promotion strategies and programs. However, a scale to measure attitudes has been lacking. We developed and validated attitudes toward PWHIV Scale to examine trends in attitudes toward PWHIV in Quebec in 1996, 2002, and 2010. We also examined the relationship between negative attitudes toward PWHIV, homophobia, and knowledge about HIV transmission. The scale included 16 items and had a five-factor structure: F1 (fear of being infected), F2 (fear of contact with PWHIV), F3 (prejudicial beliefs toward groups at high risk of HIV), F4 (tolerance regarding sexual mores and behaviors), and F5 (social support for PWHIV). The validity and reliability of the scale were assessed and found to be high. Overall, Quebecers had positive attitudes toward PWHIV, with more negative attitudes observed in subgroups defined as male, ≥50 years of age, homophobia, and below-average knowledge about HIV transmission. Scores were stable between 1996 and 2002, and increased in 2010. Negative attitudes were correlated with higher levels of homophobia and lesser knowledge about HIV transmission. The lowest scores for each factor were observed in the same subgroups that had low overall scores on the Attitudes Scale. The findings from this study can be used to intensify interventions that promote compassion for PWHIV, address attitudes toward homosexuality, and encourage greater knowledge about the transmission of HIV in these subgroups.

  12. Antigenic and genetic characterization of Bordetella pertussis recovered from Quebec, Canada, 2002-2014: detection of a genetic shift. (United States)

    Shuel, Michelle; Lefebvre, Brigitte; Whyte, Kathleen; Hayden, Kristy; De Serres, Gaston; Brousseau, Nicholas; Tsang, Raymond S W


    Despite vaccination, cyclical peaks of Bordetella pertussis incidence rates are still observed in Canada and other developed countries, making pertussis one of the most prevalent vaccine preventable bacterial diseases. In the postacellular vaccine era, evolution of bacterial strains has resulted in strains with altered vaccine antigens. Previous Canadian studies have focused on isolates mainly from the provinces of Ontario and Alberta, with only small numbers of isolates from other provinces. Therefore, in this study, we examined a larger sample (n = 52) of isolates from Quebec, Canada, between 2002 and 2014. Isolates were characterized by serotype, sequence type, and prevalence of pertactin deficiency. The Quebec isolates shared characteristics similar to other Canadian isolates and to isolates circulating globally. Although pertactin-deficient isolates were not present, a significant shift in sequence type was observed in more recent years. This study highlights the importance of continually monitoring disease-causing isolates to track evolutionary trends and gain a better understanding of the molecular epidemiology of pertussis in Canada.

  13. [Fifty years of public service for Quebec community psychiatry services. Part I]. (United States)

    Lesage, Alain


    (before 1960); b) the psychiatry community (1960-2000); and c) the differentiated system (since 2000). The essay will evidence the long march towards hospitals without walls, interdisciplinary work, tension between cure and rehabilitation and a relative decreasing budget. This in conjunction with vulnerability in organisation and leadership, attributed to tension or burn out has revealed system deficits like the trans-institution towards homelessness or towards the judiciary system. The essay will conclude with a discussion on the opportunities and challenges of the very new Law 10 that reforms the general governance of the provincial and regional health and social services and hopes for a more balanced mental health care system in Quebec.

  14. Retrospective study of intravascular large B-cell lymphoma cases diagnosed in Quebec (United States)

    Brunet, Vanessa; Marouan, Sofia; Routy, Jean-Pierre; Hashem, Mohamed Amin; Bernier, Vincent; Simard, Raynald; Petrella, Tony; Lamarre, Louis; Théorêt, Gilles; Carrier, Christian; Knecht, Hans; Fleury, Isabelle; Pavic, Michel


    Abstract Introduction: Intravascular large B-cell lymphoma (IVL) is an extremely rare malignancy, mainly studied through European and Asian series. Due to the low incidence of this condition, our understanding of the clinical presentation as well as the management of IVL relies on a limited number of patients. We report the largest North American study to date on IVL with 29 cases from Quebec hospital diagnosed between 1990 and 2016. The aim of our study is to describe the clinical presentations, diagnostic and staging procedures, therapeutic management and clinical outcomes of IVL patients in our population and compare the disease phenotype to European and Asian series reported. In our cohort, all patients had stage IV IVL at diagnosis, with a median age of 66.7 years (range 47.2–90.8). Clinical presentation was characterized by constitutional symptoms (100%), poor ECOG-PS (100% ≥ 2), cytopenias (93% anemia), and elevated lactate dehydrogenase (97%) and C-reactive protein (96%). Our cohort presented with mainly cutaneous and neurological symptoms. However, neurological involvement (75.9%) was predominant and no “cutaneous variant” was observed; this differs from European literature, where “classical” IVL is reported with mainly cutaneous involvement. Two of our Caucasian patients presented “Asian variant” IVL; this observation is not unusual, as cases of “classical” IVL have been reported in Asians and “Asian variant” IVL has been reported in Europeans. All patients were classified according to their immunophenotypic features in 3 different subgroups (CD5+ or CD5−CD10+, CD5−CD10−, CD5+CD10−) with no difference in outcome. Finally, 62% of our cohort received anthracycline-based chemotherapy and 53% of them achieved a complete response. After a median follow-up of 328 days, OS at 3 years was 42.7% for the entire cohort and 47.4% for the cases with in vivo diagnosis. Conclusion: Unlike European studies on “classical” IVL, our study

  15. Perceived conflict in the couple and chronic illness management: Preliminary analyses from the Quebec Health Survey

    Directory of Open Access Journals (Sweden)

    Hudon Catherine


    Full Text Available Abstract Background The quality of the relationship with the spouse/partner appears crucial among patients with multiple chronic conditions where illness management is complex and multifaceted. This study draws on data from the Quebec Health Survey (QHS to examine, among patients with one or more chronic conditions, the relation between marital status, the perceived conflict with the spouse/partner, and what the patients do to manage their illness as well as how they perceive their health. Methods Data from the QHS 1998 were used. The sample included 7547 coupled adults who had one or more chronic health problems lasting more than 6 months. Independent variables included marital status, perceived conflict with the spouse/partner, and the number of chronic conditions. Illness management was defined broadly as a measure of the patient's efforts at self-care and an illness status indicator, including visits to the generalist and the specialist, the use of telephone health line in the last 12 months, self-rated general health, mental health, and a measure of psychological distress. Linkages between the independent variables and illness management were assessed for males and females separately with logistic regressions, while accounting for the survey sampling design and household clustering. Results Female patients who did not live with their partner and had never been married were more likely to report a negative perception of their general health and a higher psychological distress than those who were married. Perceived conflict with the partner was linked to a negative perception of mental health and a higher psychological distress among both men and women. Compared to patients with only one chronic condition, males who reported more than one chronic condition were more likely to have consulted a generalist prior to the survey and used the telephone health line, whereas females were more likely to have consulted a specialist. Both males and

  16. Lead exposure through consumption of big game meat in Quebec, Canada: risk assessment and perception. (United States)

    Fachehoun, Richard Coovi; Lévesque, Benoit; Dumas, Pierre; St-Louis, Antoine; Dubé, Marjolaine; Ayotte, Pierre


    Game meat from animals killed by lead ammunition may expose consumers to lead. We assessed the risk related to lead intake from meat consumption of white-tailed deer and moose killed by lead ammunition and documented the perception of hunters and butchers regarding this potential contamination. Information on cervid meat consumption and risk perception were collected using a mailed self-administrated questionnaire which was addressed to a random sample of Quebec hunters. In parallel, 72 samples of white-tailed deer (n = 35) and moose (n = 37) meats were collected from voluntary hunters and analysed for lead content using inductively coupled plasma-mass spectrometry. A risk assessment for people consuming lead shot game meat was performed using Monte Carlo simulations. Mean lead levels in white-tailed deer and moose killed by lead ammunition were 0.28 and 0.17 mg kg(-1) respectively. Risk assessment based on declared cervid meat consumption revealed that 1.7% of the surveyed hunters would exceed the dose associated with a 1 mmHg increase in systolic blood pressure (SBP). For consumers of moose meat once, twice or three times a week, simulations predicted that 0.5%, 0.9% and 1.5% of adults would be exposed to a dose associated with a 1 mmHg increase in SBP, whereas 0.9%, 1.9% and 3.3% of children would be exposed to a dose associated with 1 point intelligence quotient (IQ) decrease, respectively. For consumers of deer meat once, twice or three times a week, the proportions were 1.6%, 2.9% and 4% for adults and 2.9%, 5.8% and 7.7% for children, respectively. The consumption of meat from cervids killed with lead ammunition may increase lead exposure and its associated health risks. It would be important to inform the population, particularly hunters, about this potential risk and promote the use of lead-free ammunition.

  17. Evidence of Lake Trout reproduction at Lake Michigan's mid-lake reef complex (United States)

    Janssen, J.; Jude, D.J.; Edsall, T.A.; Paddock, R.W.; Wattrus, N.; Toneys, M.; McKee, P.


    The Mid-Lake Reef Complex (MLRC), a large area of deep (> 40 m) reefs, was a major site where indigenous lake trout (Salvelinus namaycush) in Lake Michigan aggregated during spawning. As part of an effort to restore Lake Michigan's lake trout, which were extirpated in the 1950s, yearling lake trout have been released over the MLRC since the mid-1980s and fall gill net censuses began to show large numbers of lake trout in spawning condition beginning about 1999. We report the first evidence of viable egg deposition and successful lake trout fry production at these deep reefs. Because the area's existing bathymetry and habitat were too poorly known for a priori selection of sampling sites, we used hydroacoustics to locate concentrations of large fish in the fall; fish were congregating around slopes and ridges. Subsequent observations via unmanned submersible confirmed the large fish to be lake trout. Our technological objectives were driven by biological objectives of locating where lake trout spawn, where lake trout fry were produced, and what fishes ate lake trout eggs and fry. The unmanned submersibles were equipped with a suction sampler and electroshocker to sample eggs deposited on the reef, draw out and occasionally catch emergent fry, and collect egg predators (slimy sculpin Cottus cognatus). We observed slimy sculpin to eat unusually high numbers of lake trout eggs. Our qualitative approaches are a first step toward quantitative assessments of the importance of lake trout spawning on the MLRC.

  18. Lake Morphometry for NHD Lakes in Ohio Region 5 HUC (United States)

    U.S. Environmental Protection Agency — Lake morphometry metrics are known to influence productivity in lakes and are important for building various types of ecological and environmental models of lentic...

  19. Lake Morphometry for NHD Lakes in California Region 18 HUC (United States)

    U.S. Environmental Protection Agency — Lake morphometry metrics are known to influence productivity in lakes and are important for building various types of ecological and environmental models of lentic...

  20. Lake Morphometry for NHD Lakes in Tennessee Region 6 HUC (United States)

    U.S. Environmental Protection Agency — Lake morphometry metrics are known to influence productivity in lakes and are important for building various types of ecological and environmental models of lentic...

  1. Lake Michigan lake trout PCB model forecast post audit (United States)

    Scenario forecasts for total PCBs in Lake Michigan (LM) lake trout were conducted using the linked LM2-Toxics and LM Food Chain models, supported by a suite of additional LM models. Efforts were conducted under the Lake Michigan Mass Balance Study and the post audit represents th...

  2. Assessing the Effectiveness of the NICHD Investigative Interview Protocol when Interviewing French-Speaking Alleged Victims of Child Sexual Abuse in Quebec (United States)

    Cyr, Mireille; Lamb, Michael E.


    Objectives: The study was designed to assess the effectiveness of the flexibly structured NICHD Investigative Interview Protocol for child sexual abuse (CSA) investigative interviews by police officers and mental health workers in Quebec. The NICHD Protocol was designed to operationalize "best practice" guidelines and to help forensic…

  3. Austerite et gestion dans les universites quebecoises: une analyse des perceptions de directeurs de departement=Austerity and Administration in Quebec's Universities: An Analysis of Department Heads' Perceptions. (United States)

    Crespo, Manuel; And Others


    A survey of 25 Quebec university department chairmen concerning the management of budgetary austerity found that administrative responses are generally perceived as reactionary and short-sighted, but long-term solutions proposed by chairmen are based on conflicting views of the overall role of the institution. (MSE)

  4. Giardia duodenalis and Cryptosporidium spp. in the intestinal contents of ringed seals (Phoca hispida) and bearded seals (Erignathus barbatus) in Nunavik, Quebec, Canada (United States)

    The prevalence in intestinal contents of ringed and bearded seals harvested for food in the Nunavik region of northern Quebec, Canada was determned for Giardia and Cryptosporidium genotypes and species. Specimens were analysed by dual color flow cytometry, immunofluorescence microscopy, and polymer...

  5. Second-Language Education Policy in Quebec: ESL Teachers' Perceptions of the Effects of the Policy of English as a Compulsory Subject at the Early Primary Level (United States)

    Fallon, Gerald; Rublik, Natalie


    This qualitative policy study focuses on the implementation and perceived effect of a recent language policy making English a compulsory subject in primary Cycle One (grades 1-2) in Francophone public schools in the province of Quebec. Based on the analysis of narratives from interviews with four teachers, three resource teachers, and two…

  6. Approche pedagogique d'un classique du cinema quebecois: Mon Oncle Antoine (Instructional Approach to a Quebec Film Classic: My Uncle Antoine). (United States)

    Viswanathan, Jacqueline


    An approach that introduces a Quebec film into a college-level course for advanced students of French is described. The technique addresses three aspects of the film: organization; the significance of certain film-making processes; and cultural and social aspects of the film as they relate to Quebecoise culture. (MSE)

  7. Projets Pilotes Quebecois Portant sur L'Integration Scolaire aux Niveaux Pre-Scolaire et Primaire (Quebec Pilot Projects on Mainstreaming of Preschool and Primary-Level Schoolchildren). (United States)

    Saint-Laurent, Lise; And Others


    This article synthesizes 55 Quebec (Canada) pilot projects on mainstreaming of pupils with learning disabilities, behavior disorders, physical or sensorial handicaps, or mental handicaps, at preschool and elementary levels. It focuses on extent of integration, interventions, training and support for teachers, and evaluation methodology used.…

  8. Actes des journees de linguistique: Colloque sur la recherche etudiante (Proceedings of the Linguistics Conference: Colloquium on Student Research) (Quebec, Canada, March 18-19, 1988). (United States)

    Lepage, Danielle, Ed.; Dominik, Annette, Ed.

    Presentations by students at a colloquium on student research on the occasion of the 50th anniversary of the University of Laval's Faculty of Letters, March 18-19, 1988, include: "Une enquete sur la qualite du francais ecrit au Quebec"; "Amenagement linguistique et neologie"; "Analyse syntaxique des 'arrets et retours' en…

  9. Lake Erie Fish Community Data (United States)

    U.S. Geological Survey, Department of the Interior — Lake Erie Biological Station (LEBS), located in Sandusky, Ohio, is a field station of the USGS Great Lakes Science Center (GLSC). LEBS is the primary federal agency...

  10. Crescent Lake Wilderness Reference Sheet (United States)

    US Fish and Wildlife Service, Department of the Interior — Reference sheet includes information about Crescent Lake National Wildlife Refuge, and results of the public hearing for Crescent Lake Wilderness Proposal.

  11. Great Lakes Environmental Database (GLENDA) (United States)

    U.S. Environmental Protection Agency — The Great Lakes Environmental Database (GLENDA) houses environmental data on a wide variety of constituents in water, biota, sediment, and air in the Great Lakes area.

  12. Microplastic pollution in lakes and lake shoreline sediments - A case study on Lake Bolsena and Lake Chiusi (central Italy). (United States)

    Fischer, Elke Kerstin; Paglialonga, Lisa; Czech, Elisa; Tamminga, Matthias


    Rivers and effluents have been identified as major pathways for microplastics of terrestrial sources. Moreover, lakes of different dimensions and even in remote locations contain microplastics in striking abundances. This study investigates concentrations of microplastic particles at two lakes in central Italy (Lake Bolsena, Lake Chiusi). A total number of six Manta Trawls have been carried out, two of them one day after heavy winds occurred on Lake Bolsena showing effects on particle distribution of fragments and fibers of varying size categories. Additionally, 36 sediment samples from lakeshores were analyzed for microplastic content. In the surface waters 2.68 to 3.36 particles/m(3) (Lake Chiusi) and 0.82 to 4.42 particles/m(3) (Lake Bolsena) were detected, respectively. Main differences between the lakes are attributed to lake characteristics such as surface and catchment area, depth and the presence of local wind patterns and tide range at Lake Bolsena. An event of heavy winds and moderate rainfall prior to one sampling led to an increase of concentrations at Lake Bolsena which is most probable related to lateral land-based and sewage effluent inputs. The abundances of microplastic particles in sediments vary from mean values of 112 (Lake Bolsena) to 234 particles/kg dry weight (Lake Chiusi). Lake Chiusi results reveal elevated fiber concentrations compared to those of Lake Bolsena what might be a result of higher organic content and a shift in grain size distribution towards the silt and clay fraction at the shallow and highly eutrophic Lake Chiusi. The distribution of particles along different beach levels revealed no significant differences.

  13. A Lake Dream in Asia

    Institute of Scientific and Technical Information of China (English)

    Yang Wei


    @@ When William Wordsworth,representative of Lake Poets wrote his Ode to Night ingale nearby the Lake District of England at the turn of the nine-teenth century,he never imagined a century later,a similar romantic lake dream has been created in China,Asia.

  14. Interesting Ziandao Lake

    Institute of Scientific and Technical Information of China (English)


    LOCATED in Chun’an County, Zhejiang Province, Qiandao Lake (Lake of a Thousand Isles) is a state-level scenic spot and a bright pearl of the golden tourism line between Hangzhou’s West Lake and Anhui’s Huangshan Mountain. Last autumn, we went to Chun’an. It took only three to four hours by coach to travel from Hangzhou to Chun’an. Flanked by mountains on the west, the small county faces water on the east. A street goes across the county; it takes less than half an hour to walk from one end to the other. Small restaurants and shops line the western side of the road,

  15. Viruses in Antarctic lakes (United States)

    Kepner, R. L. Jr; Wharton, R. A. Jr; Suttle, C. A.; Wharton RA, J. r. (Principal Investigator)


    Water samples collected from four perennially ice-covered Antarctic lakes during the austral summer of 1996-1997 contained high densities of extracellular viruses. Many of these viruses were found to be morphologically similar to double-stranded DNA viruses that are known to infect algae and protozoa. These constitute the first observations of viruses in perennially ice-covered polar lakes. The abundance of planktonic viruses and data suggesting substantial production potential (relative to bacteria] secondary and photosynthetic primary production) indicate that viral lysis may be a major factor in the regulation of microbial populations in these extreme environments. Furthermore, we suggest that Antarctic lakes may be a reservoir of previously undescribed viruses that possess novel biological and biochemical characteristics.

  16. The Ne{sup 3}LS Network, Quebec's initiative to evaluate the impact and promote a responsible and sustainable development of nanotechnology

    Energy Technology Data Exchange (ETDEWEB)

    Endo, Charles-Anica [CHU Sainte-Justine Research Center, 3175, chemin de la Cote-Sainte-Catherine, bureau 8228, Montreal, Quebec, H3T 1C5 (Canada); Emond, Claude [Universite de Montreal, Departement de sante environnementale et sante au travail. Pavillon Marguerite-d' Youville, 2375, chemin de la Cote Ste-Catherine, local 4095 Montreal, Quebec, H3T 1A8 (Canada); Battista, Renaldo [Universite de Montreal, Departement d' administration de la sante, Pavillon Mont-Royal 1420, boul. Mont-Royal, Montreal, Quebec, H2V 4P3 (Canada); Parizeau, Marie-Helene [Universite Laval, Bureau 536, Pavillon Felix-Antoine-Savard, 2325, rue des Bibliotheques, Quebec, G1V 0A6 (Canada); Beaudry, Catherine, E-mail: [Ecole Polytechnique de Montreal, Departement de mathematiques et de genie industriel, C.P. 6079, succ. Centre-ville, Montreal, Quebec, H3C 3A7 (Canada)


    The spectacular progress made by nanosciences and nanotechnologies elicits as much hope and fear. Consequently, a great number of research and training initiatives on the ethical, environmental, economic, legal and social issues regarding nanotechnology development (Ne{sup 3}LS) are emerging worldwide. In Quebec, Canada, a Task Force was mandated by NanoQuebec to conceive a Ne{sup 3}LS research and training strategy to assess those issues. This Task Force brought together experts from universities, governments or industry working in nanosciences and nanotechnologies or in Ne{sup 3}LS. Their resulting action plan, made public in November 2006, contained several recommendations, including the creation of a knowledge network (Ne{sup 3}LS Network). In the following years, after consulting with numerous key players concerned with the possible impacts of nanosciences and nanotechnologies in Quebec, the Ne{sup 3}LS Network was launched in January 2010 in partnership with the Fonds quebecois de la recherche sur la nature et les technologies, the Fonds quebecois de la recherche sur la societe et la culture and the Fonds de la recherche en sante du Quebec, NanoQuebec, the Institut de recherche Robert-Sauve en sante et en securite du travail as well as the University of Montreal. Its objectives are to 1) Foster the development of Ne{sup 3}LS research activities (grants and fellowships); 2) Spearhead the Canadian and international Ne{sup 3}LS network; 3) Take part in the training of researchers and experts; 4) Encourage the creation of interactive tools for the general public; 5) Facilitate collaboration between decision-makers and experts; 6) Involve the scientific community through a host of activities (symposium, conferences, thematic events); 7) Build multidisciplinary research teams to evaluate the impact of nanotechnology.

  17. Lake Morphometry for NHD Lakes in Great Lakes Region 4 HUC (United States)

    U.S. Environmental Protection Agency — Lake morphometry metrics are known to influence productivity in lakes and are important for building various types of ecological and environmental models of lentic...

  18. Technologies for lake restoration

    Directory of Open Access Journals (Sweden)

    Helmut KLAPPER


    Full Text Available Lakes are suffering from different stress factors and need to be restored using different approaches. The eutrophication remains as the main water quality management problem for inland waters: both lakes and reservoirs. The way to curb the degradation is to stop the nutrient sources and to accelerate the restoration with help of in-lake technologies. Especially lakes with a long retention time need (eco- technological help to decrease the nutrient content in the free water. The microbial and other organic matter from sewage and other autochthonous biomasses, causes oxygen depletion, which has many adverse effects. In less developed countries big reservoirs function as sewage treatment plants. Natural aeration solves problems only partly and many pollutants tend to accumulate in the sediments. The acidification by acid rain and by pyrite oxidation has to be controlled by acid neutralizing technologies. Addition of alkaline chemicals is useful only for soft waters, and technologies for (microbial alkalinization of very acidic hardwater mining lakes are in development. The corrective measures differ from those in use for eutrophication control. The salinization and water shortage mostly occurs if more water is used than available. L. Aral, L. Tschad, the Dead Sea or L. Nasser belong to waters with most severe environmental problems on a global scale. Their hydrologic regime needs to be evaluated. The inflow of salt water at the bottom of some mining lakes adds to stability of stratification, and thus accumulation of hydrogen sulphide in the monimolimnion of the meromictic lakes. Destratification, which is the most used technology, is only restricted applicable because of the dangerous concentrations of the byproducts of biological degradation. The contamination of lakes with hazardous substances from industry and agriculture require different restoration technologies, including subhydric isolation and storage, addition of nutrients for better self

  19. Lakes on Mars

    CERN Document Server

    Cabrol, Nathalie A


    On Earth, lakes provide favorable environments for the development of life and its preservation as fossils. They are extremely sensitive to climate fluctuations and to conditions within their watersheds. As such, lakes are unique markers of the impact of environmental changes. Past and current missions have now demonstrated that water once flowed at the surface of Mars early in its history. Evidence of ancient ponding has been uncovered at scales ranging from a few kilometers to possibly that of the Arctic ocean. Whether life existed on Mars is still unknown; upcoming missions may find critic

  20. Reevaluation of lake trout and lake whitefish bioenergetics models (United States)

    Madenjian, Charles P.; Pothoven, Steve A.; Kao, Yu-Chun


    Using a corrected algorithm for balancing the energy budget, we reevaluated the Wisconsin bioenergetics model for lake trout (Salvelinus namaycush) in the laboratory and for lake whitefish (Coregonus clupeaformis) in the laboratory and in the field. For lake trout, results showed that the bioenergetics model slightly overestimated food consumption by the lake trout when they were fed low and intermediate rations, whereas the model predicted food consumption by lake trout fed ad libitum without any detectable bias. The slight bias in model predictions for lake trout on restricted rations may have been an artifact of the feeding schedule for these fish, and we would therefore recommend application of the Wisconsin lake trout bioenergetics model to lake trout populations in the field without any revisions to the model. Use of the Wisconsin bioenergetics model for coregonids resulted in overestimation of food consumption by lake whitefish both in the laboratory and in the field by between 20 and 30%, on average. This overestimation of food consumption was most likely due to overestimation of respiration rate. We therefore adjusted the respiration component of the bioenergetics model to obtain a good fit to the observed consumption in our laboratory tanks. The adjusted model predicted the consumption in the laboratory and the field without any detectable bias. Until a detailed lake whitefish respiration study can be conducted, we recommend application of our adjusted version of the Wisconsin generalized coregonid bioenergetics model to lake whitefish populations in the field.

  1. Conception de la nature et manuels de sciences au Quebec, en France et au Senegal (United States)

    Astalos, Monique

    This study examines a view of nature in primary science education at the international level. Currently, in international studies of science programs, this aspect has been rarely considered. A better knowledge of science textbooks would give one a better understanding of the cultural variations between countries, and, would bring more precision to the cultural contexts. The study analyzes a view of nature, particularly the relationships between man and animal found in primary science textbooks in Quebec, France and Senegal. One needs to discern if there are any differences between these countries. The assumptions are based on the primary science textbooks view of nature that essentially takes an anthropocentric view, but with some variations between cultures. This research is primarily exploratory since this phenomena has been studied only minimally. The problem is examined within each country. The types of relationships between man and animal have been identified and the textbooks have been compared with each other. Similarities and differences are then presented between textbooks of the countries under study. This section also includes an interpretation phase of the possible origins of the types of relationships between man and animal in the textbooks concerned. The results enable one to update the different types of relationships between man and animal found in the science textbooks under scrutiny. Nine types of relationships have been identified. They are: (1) naturalistic; (2) ecologistic; (3) humanistic; (4) moralistic; (5) scientific; (6) aesthetic; (7) utilitarian; (8) dominionistic; and (9) negativistic. The absence of certain categories in some textbooks raises questions on the universality of the values suggested by Kellert's typology (1985). The pre-eminence of the "scientific" category suggests a definite relation with this type of textbook, but also with the general anthropocentric trend generally found in science education. The differences found in

  2. Emotional Abuse: How the Concept Sheds Light on the Understanding of Psychological Harassment (in Quebec

    Directory of Open Access Journals (Sweden)

    Steve Harvey


    Full Text Available This paper reviews the concept of emotional abuse in the workplace and applies relevant findings and concepts to psychological harassment as defined in the legislation enacted in Quebec beginning June 1, 2004. It is noted that the terms are highly related by definition and that a clear similarity exists. Accordingly, a prospective look is taken at the challenges involved in the understanding and application of psychological harassment based on seven dimensions commonly studied and referred to in the academic literature on emotional abuse. The conclusion is that the determination of psychological harassment involves a multidimensional consideration of factors and that this gives rise to several challenges in applying the new legislation.Cet article s’intéresse au concept d’abus émotif au travail et à son application à des problèmes de harcèlement psychologique, tel que défini par la législation promulguée au Québec en juin 2004. Les définitions des deux termes sont rapprochées ce qui suggère qu’il s’agit de problèmes similaires. À des fins de prospective, l’article étudie les implications pratiques de l’application au harcèlement psychologique des sept dimensions associées à l’abus émotif dans la littérature scientifique. L’article arrive à la conclusion qu’un diagnostic de harcèlement psychologique requiert la prise en compte de facteurs multidimensionnels, ce qui soulève des difficultés multiples en ce qui a trait à l’application de la législation récente.Este artículo se interesa al concepto de abuso emotivo en el trabajo y a su aplicación a los problemas de acoso psicológico, según la definición que figura en la legislación promulgada en Québec en junio del 2004. Las definiciones de los dos términos son próximas lo que sugiere que se trata de problemas similares. Con fines prospectivos, el artículo estudia las implicaciones prácticas de la aplicación de siete dimensiones asociadas al

  3. Are Quebec’s Future Teachers Ready to Use ICT in Class? The Case of Prospective Teachers in Quebec, Canada

    Directory of Open Access Journals (Sweden)

    Thierry Karsenti


    Full Text Available Are Quebec’s future teachers ready to integrate information and communication technologies (ICT into the scholastic context? To answer this question, a study was conducted with some 2,065 future teachers, 410 associate professors and 90 supervisors of teaching practices from nine French-speaking Quebec universities offering a beginning teacher-training program. The results show that these prospective teachers have access to the equipment needed to become familiar with ICT, and that they use basic technology skills well. Furthermore, the data collected revealed that teachers in training use ICT regularly and reflectively to plan their classes, communicate, search for information, prepare didactic materials, solve problems, or improve themselves professionally. Although the profile shown is promising, the study results also indicate a very low proportion of future teachers who use ICT in the classroom.

  4. Oscillating in and out of place: Experiences of older adults residing in homeless shelters in Montreal, Quebec. (United States)

    Burns, Victoria F


    Aging in place is desirable from the perspective of older adults and policy makers alike. However, the meaning of 'place' for adults experiencing homelessness has been largely overlooked. Addressing this gap, this constructivist grounded theory study discusses the meaning of place for 15 older adults residing in emergency homeless shelters in Montreal, Quebec. Findings revealed that four interrelated dimensions of place-that is, control, comfort, privacy, and security were instrumental in supporting participants' ability to feel in place across housed-homeless trajectories. Many felt out of place well before they lost their housing and some felt more in place during homelessness when shelter conditions and interpersonal relations supported these four dimensions. The empirically-driven model oscillating in and out of place extends and nuances existing understandings of aging in place and provides insights into policy and practice solutions for older adults who may not have a stable place to call home.

  5. A Microsimulation Model to Study the Interaction between Fertility and Union Formation and Dissolution: An Application to Canada and Quebec

    Directory of Open Access Journals (Sweden)

    Martin Spielauer


    Full Text Available Union formation and dissolution are among the main determinants explaining variations in fertility. Compared to the rest of Canada, Quebec’s marital histories are more complex and its prevalence of common-law unions much higher. The objective of this article is to examine the role of marital behaviours on fertility by comparing different indicators of fertility and conjugal life that were obtained through microsimulation. Parameters of the microsimulation model were estimated from hazard regressions performed on the marital and fertility histories collected in two retrospective longitudinal surveys: the Canadian General Social Survey (GSS 2001 and 2006. Results show that the more complex marital histories of Quebecers can explain more than one-quarter of their fertility differences with the rest of the country.

  6. Lipdub-ak, gizarte-lorpenak erdiesteko lanabes gisara. Quebec, AEB, Katalunia eta Euskal Herrian egindako lau kasu paradigmatikoen azterketa

    Directory of Open Access Journals (Sweden)

    Txema Ramírez de la Piscina Martínez


    Full Text Available Artikulu honek laburbiltzen ditu egileak egindako ikerketa baten emaitzak. Berton, lipdub-en fenomenoa aztertu da; zehatzago esanda, nolatan gizarte mugimenduek erabili dezaketen tresna hau gizartean eragin handiagoa lortzeko bidean. Azterketa honetan, autoreak Youtuben inpaktu handia izan duten lau adibide esanguratsu aztertu ditu: “I gotta feeling-UQAM”, Quebec-eko Komunikazioko ikasleek egindakoak (2012ko urtarrilean Internet-en bisita gehien zituen bideoa zen; “The Grand Rapids” (lipdub honek eguneko bisita kopururik handiena zuen orduan; “Lipdub Independència” (lipdub honek orduan lortu zuen parte-hartzaile gehien izatearen mundu-marka, 5.771 pertsonekin eta, azkenik, “Lipdub Kukutza”, Euskal Herrian egindako tipo honetako bideoen artean bisita gehien zituena. Lan honek azpimarratzen du lipdub-ak gizarte mugimenduentzat lanabes garrantzitsuak izan daitezkeela, batetik masa-hedabideetan nagusi diren joerei aurre egiteko eta, bestetik, mugimenduei beraiei komunikabideek sarritan ezartzen dieten ikusezintasuna gainditu ahal izateko.

  7. Lake whitefish diet, condition, and energy density in Lake Champlain and the lower four Great Lakes following dreissenid invasions (United States)

    Herbst, Seth J.; Marsden, J. Ellen; Lantry, Brian F.


    Lake Whitefish Coregonus clupeaformis support some of the most valuable commercial freshwater fisheries in North America. Recent growth and condition decreases in Lake Whitefish populations in the Great Lakes have been attributed to the invasion of the dreissenid mussels, zebra mussels Dreissena polymorpha and quagga mussels D. bugensis, and the subsequent collapse of the amphipod, Diporeia, a once-abundant high energy prey source. Since 1993, Lake Champlain has also experienced the invasion and proliferation of zebra mussels, but in contrast to the Great Lakes, Diporeia were not historically abundant. We compared the diet, condition, and energy density of Lake Whitefish from Lake Champlain after the dreissenid mussel invasion to values for those of Lake Whitefish from Lakes Michigan, Huron, Erie, and Ontario. Lake Whitefish were collected using gill nets and bottom trawls, and their diets were quantified seasonally. Condition was estimated using Fulton's condition factor (K) and by determining energy density. In contrast to Lake Whitefish from some of the Great Lakes, those from Lake Champlain Lake Whitefish did not show a dietary shift towards dreissenid mussels, but instead fed primarily on fish eggs in spring, Mysis diluviana in summer, and gastropods and sphaeriids in fall and winter. Along with these dietary differences, the condition and energy density of Lake Whitefish from Lake Champlain were high compared with those of Lake Whitefish from Lakes Michigan, Huron, and Ontario after the dreissenid invasion, and were similar to Lake Whitefish from Lake Erie; fish from Lakes Michigan, Huron, and Ontario consumed dreissenids, whereas fish from Lake Erie did not. Our comparisons of Lake Whitefish populations in Lake Champlain to those in the Great Lakes indicate that diet and condition of Lake Champlain Lake Whitefish were not negatively affected by the dreissenid mussel invasion.

  8. (222)Rn activity in groundwater of the St. Lawrence Lowlands, Quebec, eastern Canada: relation with local geology and health hazard. (United States)

    Pinti, Daniele L; Retailleau, Sophie; Barnetche, Diogo; Moreira, Floriane; Moritz, Anja M; Larocque, Marie; Gélinas, Yves; Lefebvre, René; Hélie, Jean-François; Valadez, Arisai


    One hundred ninety-eight groundwater wells were sampled to measure the (222)Rn activity in the region between Montreal and Quebec City, eastern Canada. The aim of this study was to relate the spatial distribution of (222)Rn activity to the geology and the hydrogeology of the study area and to estimate the potential health risks associated with (222)Rn in the most populated area of the Province of Quebec. Most of the groundwater samples show low (222)Rn activities with a median value of 8.6 Bq/L. Ninety percent of samples show (222)Rn activity lower than 100 Bq/L, the exposure limit in groundwater recommended by the World Health Organization. A few higher (222)Rn activities (up to 310 Bq/L) have been measured in wells from the Appalachian Mountains and from the magmatic intrusion of Mont-Saint-Hilaire, known for its high level of indoor radon. The spatial distribution of (222)Rn activity seems to be related mainly to lithology differences between U-richer metasediments of the Appalachian Mountains and magmatic intrusions and the carbonaceous silty shales of the St. Lawrence Platform. Radon is slightly enriched in sodium-chlorine waters that evolved at contact with clay-rich formations. (226)Ra, the parent element of (222)Rn could be easily adsorbed on clays, creating a favorable environment for the production and release of (222)Rn into groundwater. The contribution of groundwater radon to indoor radon or by ingestion is minimal except for specific areas near Mont-Saint-Hilaire or in the Appalachian Mountains where this contribution could reach 45% of the total radioactive annual dose.

  9. Effects of climate on West Nile Virus transmission risk used for public health decision-making in Quebec

    Directory of Open Access Journals (Sweden)

    Gosselin Pierre L


    Full Text Available Abstract Background In 2002, major human epidemics of West Nile Virus (WNV were reported in five cities in the North East region of North America. The present analysis examines the climatic conditions that were conducive to the WNV epidemic, in order to provide information to public health managers who eventually must decide on the implementation of a preventive larvicide spraying program in Quebec, Canada. Two sets of variables, the first observed in the summer of 2002 and the second in the preceding winter were analysed to study their potential as explanatory variables for the emergence of the virus at epidemic levels. Results Results show that the climatic conditions observed in the year 2002 have contributed to the emergence of the virus and can be observed once every forty years on average. The analysis has shown that the 2002 events observed in several North East North American cities are characterized by two main variables: the number of degree-days below -5°C in the winter (DD-5 and the number of degree-days greater than 25°C in the summer (DD25. Conclusion In the context of a declining rate of human and aviary infection to WNV, this element contributed to the decision to suspend the use of preventive larvicides in the province of Quebec in 2006 and for the foreseeable future. The second part of this study indicates that it is very important to estimate the risk that extreme values can be observed simultaneously in the summer and in the winter preceding the appearance of the virus. The proposed models provide important information to public health officials, weeks before the appearance of the virus, and can therefore be useful to help prevent human epidemics.

  10. Carbapenem non-susceptible enterobacteriaceae in Quebec, Canada: results of a laboratory surveillance program (2010-2012.

    Directory of Open Access Journals (Sweden)

    Brigitte Lefebvre

    Full Text Available The emergence and spread of carbapenemase-producing Enterobacteriaceae (CPE represent a major public health concern because these bacteria are usually extensively resistant to most antibiotics. In order to evaluate their dissemination in Quebec, a surveillance program was introduced in 2010. We report the molecular and epidemiological profiles of CPE isolates collected. Between August 2010 and December 2012, a total of 742 non-duplicate isolates non-susceptible to carbapenems were analysed. AmpC β-lactamase and metallo-β-lactamase production were detected by Etest and carbapenemase production by the modified Hodge test (MHT. Antibiotic susceptibility profiles were determined using broth microdilution or Etest. Clonality of Klebsiella pneumoniae carbapenemase (KPC strains was analyzed by pulsed-field gel electrophoresis (PFGE. The presence of genes encoding carbapenemases as well as other β-lactamases was detected using PCR. Of the 742 isolates tested, 169 (22.8% were CPE. Of these 169 isolates, 151 (89.3% harboured a blaKPC gene while the remaining isolates carried blaSME (n = 9, blaOXA-48 (n = 5, blaNDM (n = 3, and blaNMC (n = 1 genes. Among the 93 KPC strains presenting with a unique pattern (unique PFGE pattern and/or unique antibiotics susceptibility profile, 99% were resistant to ertapenem, 95% to imipenem, 87% to meropenem, 97% to aztreonam, 31% to colistin and 2% to tigecycline. In 19 patients, 2 to 5 KPC strains from different species or with a different PFGE pattern were isolated. CPE strains were present in the province of Quebec with the majority of strains harbouring KPC. Alternately, SME, OXA-48 and NMC containing strains were rarely found.

  11. Hydrocarbon plays in the Quebec St. Lawrence Lowlands : an overview of the Junex exploration effort in the Early Paleozoic Basin

    Energy Technology Data Exchange (ETDEWEB)

    Marcil, J.-S.; Lavoie, J.-Y. [Junex Inc., Quebec, PQ (Canada)


    Junex Inc. has recently discovered major gas shows in the Lower Trenton, Deschambault Formation of the Becancour and Batiscan prospects located near Trois-Rivieres, Quebec. The discovery is supported by recent finds in the Trenton Group of New York State, indicating high hydrocarbon production potential. Previous exploration efforts in the Quebec St. Lawrence Lowlands (QSLL) resulted in the production of two gas fields, the Point-du-Lac gas field and the St. Flavien gas field. Junex's most interesting well is the Becancour no. 2 well which has a very porous and permeable gas-bearing horizon at the base of the Trenton Group. Junex will integrate a large regional model based on secondary fracture porosity resulting from strike-slip faults and dolomitization created by the circulation of hydrothermal fluids. The company will also continue an exploration program on new permits for the next two years. This will include 3D seismic, remote sensing and magneto-telluric surveying. The objective is to develop 4 new wells in the area along with a gas storage facility in the Becancour industrial park. The seven different types of plays that Junex is working on belong to several geological units with variable economic potential. These include: (1) a structural high in the carbonate shelf, (2) a stratigraphic pinch in the dolomite sandstone, (3) a thrusted sheet at the Appalachian Front, (4) fractured carbonates, (5) dolomitized limestone, (6) shallow quaternary sand, and (7) carbonate platform deep plays. It was concluded that a good understanding of the Basin along with a regional exploration program and extensive drilling will likely result in the successful development of natural gas in the QSLL. 7 refs., 1 tab., 6 figs.

  12. The changing epidemiology of meningococcal disease in Quebec, Canada, 1991-2011: potential implications of emergence of new strains.

    Directory of Open Access Journals (Sweden)

    Rodica Gilca

    Full Text Available BACKGROUND: In order to inform meningococcal disease prevention strategies, we analysed the epidemiology of invasive meningococcal disease (IMD in the province of Quebec, Canada, 10 years before and 10 years after the introduction of serogroup C conjugate vaccination. METHODOLOGY: IMD cases reported to the provincial notifiable disease registry in 1991-2011 and isolates submitted for laboratory surveillance in 1997-2011 were analysed. Serogrouping, PCR testing and assignment of isolates to sequence types (ST by using multilocus sequence typing (MLST were performed. RESULTS: Yearly overall IMD incidence rates ranged from 2.2-2.3/100,000 in 1991-1992 to 0.49/100,000 in 1999-2000, increasing to 1.04/100,000 in 2011. Among the 945 IMD cases identified by laboratory surveillance in 1997-2011, 68%, 20%, 8%, and 3% were due to serogroups B, C, Y, and W135, respectively. Serogroup C IMD almost disappeared following the implementation of universal childhood immunization with monovalent C conjugate vaccines in 2002. Serogroup B has been responsible for 88% of all IMD cases and 61% of all IMD deaths over the last 3 years. The number and proportion of ST-269 clonal complex has been steadily increasing among the identified clonal complexes of serogroup B IMD since its first identification in 2003, representing 65% of serogroup B IMD in 2011. This clonal complex was first introduced in adolescent and young adults, then spread to other age groups. CONCLUSION: Important changes in the epidemiology of IMD have been observed in Quebec during the last two decades. Serogroup C has been virtually eliminated. In recent years, most cases have been caused by the serogroup B ST-269 clonal complex. Although overall burden of IMD is low, the use of a vaccine with potential broad-spectrum coverage could further reduce the burden of disease. Acceptability, feasibility and cost-effectiveness studies coupled with ongoing clinical and molecular surveillance are necessary in

  13. Reclaiming the lake

    DEFF Research Database (Denmark)

    Rasmussen, Mattias Borg


    of individual rights that move well beyond the site of conflict. It is therefore argued that the actions to reclaim Lake Conococha were not only a battle for natural resources and clean water, but more fundamentally an attempt to repossess a citizenship that may be constitutionally secured but all too oft en...

  14. Lake Ontario: Nearshore Variability (United States)

    We conducted a high-resolution survey with towed electronic instrumentation along the Lake Ontario nearshore (720 km) at a 20 meter contour. The survey was conducted September 6-10, 2008 with a shorter 300 km survey conducted August 14-15 for comparing of temporal variability. ...

  15. New insights on the late-stage history of glacial Lake Ojibway: implications for meltwater discharges of the last deglaciation (United States)

    Roy, Martin; Veillette, Jean J.; Godbout, Pierre-Marc


    The decay of the Laurentide ice sheet is believed to be responsible for abrupt climate variations during the last deglaciation and early Holocene, notably through massive discharges of meltwater that had accumulated in large ice-dammed lakes such as Lake Agassiz and Lake Ojibway. Indeed, high-resolution North Atlantic marine records indicate that the ocean's circulation was affected by several outbursts of meltwater during the late deglacial interval. Yet, field evidence and geological data supporting multi-step drawdowns of Lake Agassiz-Ojibway are relatively limited, underlying important uncertainties in the late-stage history of these glacial lakes. Furthermore, physical evidence for the drainage of glacial lakes remains relatively rare in depositional records, giving rise to much debate on the location of outlets and discharge pathways, as well as on the climate impact of the attendant meltwater forcing. Recent investigations of geomorphological and sedimentary records in northern Ontario and Quebec (Canada) have revealed new insights on the late-stage evolution of Lake Ojibway. The number of Ojibway lake phases have so far remained poorly documented mainly because of the dominance of fine-grained glaciolacustrine sediments in the lake basin that prevented the formation of extensive sandy/bouldery strandlines. We thus developed an alternative approach based on the study of a complex sequence of relict terraces carved in the Ojibway clay plain. The elevation measurement of 154 raised wave-cut scarps provided evidence for four distinct shorelines, three of which projecting well below the main outlet that controlled the elevation of the lake during the deglaciation. The elevation, uplift gradients, and areal extent of these shorelines indicate that these low-elevation lake levels formed during the late stages of the deglaciation, following abrupt drawdowns of the lake's surface. Insights on the origin of these late-stage phases are provided from sediment sequences

  16. Detection of microcystin-producing cyanobacteria in Missisquoi Bay, Quebec, Canada, using quantitative PCR. (United States)

    Fortin, Nathalie; Aranda-Rodriguez, Rocio; Jing, Hongmei; Pick, Frances; Bird, David; Greer, Charles W


    Toxic cyanobacterial blooms, as well as their increasing global occurrence, pose a serious threat to public health, domestic animals, and livestock. In Missisquoi Bay, Lake Champlain, public health advisories have been issued from 2001 to 2009, and local microcystin concentrations found in the lake water regularly exceeded the Canadian drinking water guideline of 1.5 microg liter(-1). A quantitative PCR (Q-PCR) approach was developed for the detection of blooms formed by microcystin-producing cyanobacteria. Primers were designed for the beta-ketoacyl synthase (mcyD(KS)) and the first dehydratase domain (mcyD(DH)) of the mcyD gene, involved in microcystin synthesis. The Q-PCR method was used to track the toxigenic cyanobacteria in Missisquoi Bay during the summers of 2006 and 2007. Two toxic bloom events were detected in 2006: more than 6.5 x 10(4) copies of the mcyD(KS) gene ml(-1) were detected in August, and an average of 4.0 x 10(4) copies ml(-1) were detected in September, when microcystin concentrations were more than 4 microg liter(-1) and approximately 2 microg liter(-1), respectively. Gene copy numbers and total microcystin concentrations (determined by enzyme-linked immunosorbent assay [ELISA]) were highly correlated in the littoral (r = 0.93, P microcystin concentration was barely detectable. The Q-PCR method allowed the detection of microcystin-producing cyanobacteria when toxins and toxigenic cyanobacterial abundance were still below the limit of detection by high-pressure liquid chromatography (HPLC) and microscopy. Toxin gene copy numbers grew exponentially at a steady rate over a period of 7 weeks. Onshore winds selected for cells with a higher cell quota of microcystin. This technique could be an effective approach for the routine monitoring of the most at-risk water bodies.

  17. Microbiology of Lonar Lake and other soda lakes. (United States)

    Antony, Chakkiath Paul; Kumaresan, Deepak; Hunger, Sindy; Drake, Harold L; Murrell, J Colin; Shouche, Yogesh S


    Soda lakes are saline and alkaline ecosystems that are believed to have existed throughout the geological record of Earth. They are widely distributed across the globe, but are highly abundant in terrestrial biomes such as deserts and steppes and in geologically interesting regions such as the East African Rift valley. The unusual geochemistry of these lakes supports the growth of an impressive array of microorganisms that are of ecological and economic importance. Haloalkaliphilic Bacteria and Archaea belonging to all major trophic groups have been described from many soda lakes, including lakes with exceptionally high levels of heavy metals. Lonar Lake is a soda lake that is centered at an unusual meteorite impact structure in the Deccan basalts in India and its key physicochemical and microbiological characteristics are highlighted in this article. The occurrence of diverse functional groups of microbes, such as methanogens, methanotrophs, phototrophs, denitrifiers, sulfur oxidizers, sulfate reducers and syntrophs in soda lakes, suggests that these habitats harbor complex microbial food webs that (a) interconnect various biological cycles via redox coupling and (b) impact on the production and consumption of greenhouse gases. Soda lake microorganisms harbor several biotechnologically relevant enzymes and biomolecules (for example, cellulases, amylases, ectoine) and there is the need to augment bioprospecting efforts in soda lake environments with new integrated approaches. Importantly, some saline and alkaline lake ecosystems around the world need to be protected from anthropogenic pressures that threaten their long-term existence.

  18. Lake trout rehabilitation in Lake Erie: a case history (United States)

    Cornelius, Floyd C.; Muth, Kenneth M.; Kenyon, Roger


    Native lake trout (Salvelinus namaycush) once thrived in the deep waters of eastern Lake Erie. The impact of nearly 70 years of unregulated exploitation and over 100 years of progressively severe cultural eutrophication resulted in the elimination of lake trout stocks by 1950. Early attempts to restore lake trout by stocking were unsuccessful in establishing a self-sustaining population. In the early 1980s, New York's Department of Environmental Conservation, Pennsylvania's Fish and Boat Commission, and the U.S. Fish and Wildlife Service entered into a cooperative program to rehabilitate lake trout in the eastern basin of Lake Erie. After 11 years of stocking selected strains of lake trout in U.S. waters, followed by effective sea lamprey control, lake trout appear to be successfully recolonizing their native habitat. Adult stocks have built up significantly and are expanding their range in the lake. Preliminary investigations suggest that lake trout reproductive habitat is still adequate for natural reproduction, but natural recruitment has not been documented. Future assessments will be directed toward evaluation of spawning success and tracking age-class cohorts as they move through the fishery.

  19. La institucionalización de la evaluación del impacto en la salud en Quebec: ¿un modelo factible en España? The institutionalization of health impact assessment in Quebec: a feasible model in Spain?

    Directory of Open Access Journals (Sweden)

    Elena Boldo


    Full Text Available Objetivos: En Canadá, Quebec institucionalizó el proceso de la evaluación del impacto en la salud al incluirla en su Ley de Salud Pública. En España, el Ministerio de Sanidad, Política Social e Igualdad está en un proceso de reforma de la Ley de Salud Pública, en la cual está prevista la inclusión de la evaluación del impacto en la salud. Este estudio revisa los elementos que han llevado a la implantación efectiva de la evaluación del impacto en la salud en Quebec y reflexiona sobre la posible aplicación del modelo quebequense en el ámbito español. Métodos: Se recopiló información aportada en entrevistas realizadas en diversas instituciones de salud pública quebequenses. El modelo de Quebec se comparó con la situación española para identificar las posibles necesidades asociadas a la práctica de la evaluación del impacto en la salud en España. Resultados: Las instituciones de salud pública quebequenses han desarrollado una estrategia para la aplicación efectiva de la evaluación del impacto en la salud. Se fundamenta en varias medidas: creación de una red de representantes ministeriales, desarrollo de un procedimiento interno en el Ministerio de Sanidad y Servicios Sociales para responder a las solicitudes formuladas, elaboración de guías metodológicas, creación de programas de investigación, refuerzo de los mecanismos de transferencia de conocimientos y establecimiento de herramientas de comunicación y participación. Conclusiones: La regulación legal de la evaluación del impacto en la salud no garantiza el éxito de su implantación. La institucionalización de dicha evaluación requiere establecer una estructura bien diseñada y la asignación de recursos adecuados. La experiencia desarrollada en Quebec muestra un modelo de implantación de la evaluación del impacto en la salud que podría adaptarse a nuestro país, considerando los elementos de la idiosincrasia española.Objectives: In Canada, the

  20. Influence of a step-change in metal exposure (Cd, Cu, Zn) on metal accumulation and subcellular partitioning in a freshwater bivalve, Pyganodon grandis: A long-term transplantation experiment between lakes with contrasting ambient metal levels

    Energy Technology Data Exchange (ETDEWEB)

    Cooper, Sophie [INRS-Eau, Terre et Environnement, Université du Québec, 490 de la Couronne, Québec, QC G1K 9A9 (Canada); Bonneris, Emmanuelle [INRS-Eau, Terre et Environnement, Université du Québec, 490 de la Couronne, Québec, QC G1K 9A9 (Canada) and Bayer S.A.S., Bayer CropScience, 16 Rue Jean-Marie Leclair, CP 90106, F 69266 Lyon Cedex 09 (France); Michaud, Annick [INRS-Eau, Terre et Environnement, Université du Québec, 490 de la Couronne, Québec, QC G1K 9A9 (Canada) and Direction des Évaluations environnementales, Ministère du Développement durable, de l’Environnement et des Parcs, 675, boul. René-Lévesque Est, 6e étage, Québec, QC G1R 5V7 (Canada); Pinel-Alloul, Bernadette [Groupe de Recherche Interuniversitaire en Limnologie et Environnement Aquatique (GRIL), Département de Sciences Biologiques, Université de Montréal, C.P. 6128, Montréal, QC H3C 3J7 (Canada); Campbell, Peter G.C., E-mail: [INRS-Eau, Terre et Environnement, Université du Québec, 490 de la Couronne, Québec, QC G1K 9A9 (Canada)


    Highlights: ? We transferred freshwater bivalves from a reference lake to a Cd and Zn contaminated lake. ? Changes in metal accumulation and subcellular partitioning were followed over time (up to 860 d). ? Metal detoxification strategies differed between target organs (gills vs. digestive gland). ? The ability to handle Cd is inherent in P. grandis, not a trait acquired after long-term adaptation. -- Abstract: The objective of the present field experiment was to identify detoxification responses in the gills and digestive gland of a freshwater unionid bivalve, Pyganodon grandis, subjected to a step-change in metal exposure. Adult bivalves were transferred from a reference site (Lake Opasatica) and a metal-contaminated lake (Lake Héva) to a second contaminated lake (Lake Vaudray) in northwestern Quebec, Canada. Changes in organ metal concentrations, in the subcellular distribution of metals and in metallothionein concentrations were followed over time (t = 0, 132, (400) and 860 days). At each collection time and for each bivalve, the gills and digestive gland were excised and gently homogenized; six sub-cellular fractions were separated by differential centrifugation and analyzed for their Cd, Cu and Zn content, and metallothionein was quantified independently. Metal detoxification strategies were shown to differ between target organs: in the gills, incoming metals were sequestered largely in the granules, whereas in the digestive gland the same metals primarily accumulated in the cytosol, in the metallothionein-like protein fraction. These metal-handling strategies, as employed by the metal-naïve bivalves originating in the reference lake, closely resemble those identified in free-living P. grandis chronically exposed in the metal-contaminated lake, suggesting that the ability to handle incoming metals (Cd in particular) is inherent in P. grandis and is not a trait acquired after long-term adaptation of the bivalve to metal-contaminated environments. The

  1. Radiochronology of lake sediments

    Energy Technology Data Exchange (ETDEWEB)

    Erten, H.N. [Bilkent Univ., Ankara (Turkey). Dept. of Chemistry


    Sediment cores from Lakes Zurich, Constance, from the Sea of Marmara and from southern Turkey, northern Cyprus and eastern Spain were dated using natural {sup 210}Pb, fallout {sup 137}Cs and cosmic-ray produced {sup 7}Be radionuclides. Constant activity regions in the uppermost sections of sediments from Lake Zurich and the Sea of Marmara were attributed to post-depositional mobility of {sup 210}Pb in the former case and to bioturbation in the latter. A serious discrepancy exists between the {sup 210}Pb dating of Sea of Marmara sediments and those obtained by organic carbon based methods. The elements Zn, Cu, P and Pb were enriched in the upper sections of the sediment cores corresponding to the last 200 years. The increased metallurgical activities as a result of reforms in the Ottoman Army during the 18th century could be the most likely cause. (Author).

  2. PRISMA: Program of Research to Integrate the Services for the Maintenance of Autonomy. A system-level integration model in Quebec. (United States)

    MacAdam, Margaret


    The Program of Research to Integrate the Services for the Maintenance of Autonomy (PRISMA) began in Quebec in 1999. Evaluation results indicated that the PRISMA Project improved the system of care for the frail elderly at no additional cost. In 2001, the Quebec Ministry of Health and Social Services made implementing the six features of the PRISMA approach a province-wide goal in the programme now known as RSIPA (French acronym). Extensive Province-wide progress has been made since then, but ongoing challenges include reducing unmet need for case management and home care services, creating incentives for increased physician participation in care planning and improving the computerized client chart, among others. PRISMA is the only evaluated international model of a coordination approach to integration and one of the few, if not the only, integration model to have been adopted at the system level by policy-makers.

  3. In a secondary care setting, differences between neck pain subgroups classified using the Quebec task force classification system were typically small

    DEFF Research Database (Denmark)

    Rasmussen, Hanne; Kent, Peter; Kjaer, Per


    and patients with NP + NRI had experienced the largest improvements in pain intensity. Similar results were obtained for activity limitation. CONCLUSIONS: This study found baseline and outcome differences between neck pain subgroups classified using the Quebec Task Force Classification System. However......BACKGROUND: The component of the Quebec Task Force Classification System that subgroups patients based on the extent of their radiating pain and neurological signs has been demonstrated to have prognostic implications for patients with low back pain but has not been tested on patients with neck...... collected, routine clinical data. Patients were classified into Local NP only, NP + arm pain above the elbow, NP + arm pain below the elbow, and NP with signs of nerve root involvement (NP + NRI). Outcome was pain intensity and activity limitation. Associations were tested in longitudinal linear mixed...

  4. PRISMA: Program of Research to Integrate the Services for the Maintenance of Autonomy. A system-level integration model in Quebec

    Directory of Open Access Journals (Sweden)

    Margaret MacAdam


    Full Text Available The Program of Research to Integrate the Services for the Maintenance of Autonomy (PRISMA began in Quebec in 1999. Evaluation results indicated that the PRISMA Project improved the system of care for the frail elderly at no additional cost. In 2001, the Quebec Ministry of Health and Social Services made implementing the six features of the PRISMA approach a province-wide goal in the programme now known as RSIPA (French acronym. Extensive Province-wide progress has been made since then, but ongoing challenges include reducing unmet need for case management and home care services, creating incentives for increased physician participation in care planning and improving the computerized client chart, among others. PRISMA is the only evaluated international model of a coordination approach to integration and one of the few, if not the only, integration model to have been adopted at the system level by policy-makers.

  5. Archaea in Yellowstone Lake. (United States)

    Kan, Jinjun; Clingenpeel, Scott; Macur, Richard E; Inskeep, William P; Lovalvo, Dave; Varley, John; Gorby, Yuri; McDermott, Timothy R; Nealson, Kenneth


    The Yellowstone geothermal complex has yielded foundational discoveries that have significantly enhanced our understanding of the Archaea. This study continues on this theme, examining Yellowstone Lake and its lake floor hydrothermal vents. Significant Archaea novelty and diversity were found associated with two near-surface photic zone environments and two vents that varied in their depth, temperature and geochemical profile. Phylogenetic diversity was assessed using 454-FLX sequencing (~51,000 pyrosequencing reads; V1 and V2 regions) and Sanger sequencing of 200 near-full-length polymerase chain reaction (PCR) clones. Automated classifiers (Ribosomal Database Project (RDP) and Greengenes) were problematic for the 454-FLX reads (wrong domain or phylum), although BLAST analysis of the 454-FLX reads against the phylogenetically placed full-length Sanger sequenced PCR clones proved reliable. Most of the archaeal diversity was associated with vents, and as expected there were differences between the vents and the near-surface photic zone samples. Thaumarchaeota dominated all samples: vent-associated organisms corresponded to the largely uncharacterized Marine Group I, and in surface waters, ~69-84% of the 454-FLX reads matched archaeal clones representing organisms that are Nitrosopumilus maritimus-like (96-97% identity). Importance of the lake nitrogen cycling was also suggested by >5% of the alkaline vent phylotypes being closely related to the nitrifier Candidatus Nitrosocaldus yellowstonii. The Euryarchaeota were primarily related to the uncharacterized environmental clones that make up the Deep Sea Euryarchaeal Group or Deep Sea Hydrothermal Vent Group-6. The phylogenetic parallels of Yellowstone Lake archaea to marine microorganisms provide opportunities to examine interesting evolutionary tracks between freshwater and marine lineages.

  6. Not so Great Lakes? (United States)

    Showstack, Randy

    In 1965, Frank Sinatra won the Grammy Award for his album, "September of My Years;" "Early Bird," the first commercial communications satellite, was launched; and Dr. Martin Luther King, Jr. was arrested in Selma, Alabama, during demonstrations against voter-registration rules.The year 1965 was also the last time water levels in the U.S. Great Lakes were as low as they are now.

  7. Great Lakes Energy Institute

    Energy Technology Data Exchange (ETDEWEB)

    Alexander, J. Iwan [Case Western Reserve Univ., Cleveland, OH (United States)


    The vision of the Great Lakes Energy Institute is to enable the transition to advanced, sustainable energy generation, storage, distribution and utilization through coordinated research, development, and education. The Institute will place emphasis on translating leading edge research into next generation energy technology. The Institute’s research thrusts focus on coordinated research in decentralized power generation devices (e.g. fuel cells, wind turbines, solar photovoltaic devices), management of electrical power transmission and distribution, energy storage, and energy efficiency.

  8. Architecture, religion, and tuberculosis in Sainte-Agathe-des-Monts, Quebec. (United States)

    Adams, Annmarie; Poutanen, Mary Anne


    This paper explores the architecture of the Mount Sinai Sanatorium in Sainte-Agathe-des-Monts (Qc) to disentangle the role of religion in the treatment of tuberculosis. In particular, we analyze the design of Mount Sinai, the jewel in the crown of Jewish philanthropy in Montreal, in relation to that of the nearby Laurentian Sanatorium. While Mount Sinai offered free treatment to the poor in a stunning, Art Deco building of 1930, the Protestant hospital had by then served paying patients for more than two decades in a purposefully home-like, Tudor-revival setting. Using architectural historian Bernard Herman's concept of embedded landscapes, we show how the two hospitals differed in terms of their relationship to site, access, and, most importantly, to city, knowledge, and community. Architects Scopes & Feustmann, who designed the Laurentian hospital, operated an office at Saranac Lake, New York, America's premier destination for consumptives. The qualifications of Mount Sinai architects Spence & Goodman, however, derived from their experience with Jewish institutions in Montreal. Following Herman's approach to architecture through movement and context, how did notions of medical therapy and Judaism intersect in the plans of Mount Sinai?

  9. Audubon National Wildlife Refuge, Lake Nettie National Wildlife Refuge, Camp Lake Easement Refuge, Wintering River Easement Refuge, Cottonwood Lake Easement Refuge, Sheyenne Lake Easement Refuge : Narrative report : 1969 (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for Audubon National Wildlife Refuge (including Lake Nettie National Wildlife Refuge, Camp Lake Easement Refuge, Cottonwood Lake...

  10. Bear Lake-Minidoka - Phragmites Control (United States)

    US Fish and Wildlife Service, Department of the Interior — Bear Lake: Phragmites patches were sprayed on the refuge & north of the lake proper. Minidoka: patches along the Snake River & Lake Walcott were treated with...

  11. Locating a Prostate Cancer Susceptibility Gene on the X Chromosome by Linkage Disequilibrium Mapping Using Three Founder Populations in Quebec and Switzerland (United States)


    Non-medullary thyroid cancer: attempts to locate susceptibility genes by linkage in two Canadian families with goitre and non-medullary thyroid...Ashkenazi Jewish population Department of Epidemiology, MD Anderson Cancer Center, Houston, Texas. March 12, 1998 Title: Familial multinodular goitre ...Appliqués du FRSQ Montreal, Quebec October 24, 1997 Title: A gene for familial multinodular goitre maps to chromosome 14q Annual Congress of the

  12. Great Lakes' regional climate regimes (United States)

    Kravtsov, Sergey; Sugiyama, Noriyuki; Roebber, Paul


    We simulate the seasonal cycle of the Great Lakes' water temperature and lake ice using an idealized coupled lake-atmosphere-ice model. Under identical seasonally varying boundary conditions, this model exhibits more than one seasonally varying equilibrium solutions, which we associate with distinct regional climate regimes. Colder/warmer regimes are characterized by abundant/scarce amounts of wintertime ice and cooler/warmer summer temperatures, respectively. These regimes are also evident in the observations of the Great Lakes' climate variability over recent few decades, and are found to be most pronounced for Lake Superior, the deepest of the Great Lakes, consistent with model predictions. Multiple climate regimes of the Great Lakes also play a crucial role in the accelerated warming of the lakes relative to the surrounding land regions in response to larger-scale global warming. We discuss the physical origin and characteristics of multiple climate regimes over the lakes, as well as their implications for a longer-term regional climate variability.

  13. Algae Bloom in a Lake

    Directory of Open Access Journals (Sweden)

    David Sanabria


    Full Text Available The objective of this paper is to determine the likelihood of an algae bloom in a particular lake located in upstate New York. The growth of algae in this lake is caused by a high concentration of phosphorous that diffuses to the surface of the lake. Our calculations, based on Fick's Law, are used to create a mathematical model of the driving force of diffusion for phosphorous. Empirical observations are also used to predict whether the concentration of phosphorous will diffuse to the surface of this lake within a specified time and under specified conditions.


    Directory of Open Access Journals (Sweden)

    Petre GÂŞTESCU


    Full Text Available The article offers a synthesis of the lakes of Romania. We addressed the following questions: genetic types of lakes, geographical distribution and their use in various fields of activities. Thus, in the territory of Romania is a large genetic diversity of lakes distributed on all major forms of relief and recovery in many economic areas. Romania is particularly present fluvial lakes, glacial lakes and anthropogenic lakes (especially reservoirs.

  15. Glacial lakes Buni and Jezerce: Albania


    Milivojević Milovan; Kovačević-Majkić Jelena


    The paper presents glacial lakes and glacial relief forms at the foothill of the peak Maja Jezerce in Mt. Prokletije in Albania, near the border with Montenegro. The group of lakes Buni and Jezerce, which consists of six lakes and which genetically belongs to glacial-erosional lakes, is analyzed. Lakes are situated at the cirque bottom, between the moraines and limestone ridges. Except presented morphometric characteristics of lake basins, data about cirque are given, as well as the reconstru...



    Petre GÂŞTESCU


    The article offers a synthesis of the lakes of Romania. We addressed the following questions: genetic types of lakes, geographical distribution and their use in various fields of activities. Thus, in the territory of Romania is a large genetic diversity of lakes distributed on all major forms of relief and recovery in many economic areas. Romania is particularly present fluvial lakes, glacial lakes and anthropogenic lakes (especially reservoirs).

  17. The 11/25/88, M=6 Saguenay Earthquake near Chicoutimi, Quebec: Evidence for anisotropic wave propagation in northeastern North America (United States)

    Hough, S. E.; Jacob, K. H.; Friberg, P. A.


    On November 25, 1988, a magnitude 6 earthquake occurred in the province of Quebec, Canada. This earthquake triggered nine digital strong motion instruments in New York and Maine at epicentral distances of 200 to 820 km which were installed as part of an effort by the National Center for Earthquake Engineering Research (NCEER) to study ground motions and wave propagation in eastern North America. We calculate Q(f) at discrete frequencies from 0.6 to 26 Hz, assuming that geometrical spreading causes a l/r0.5 decay in spectral amplitudes. Of the nine stations, four are in the Adirondack Mountains in New York and three are in eastern Maine. If we calculate Q(f) for these two clusters of stations separately, we obtain higher values for the Adirondack stations. The Quebec-Adirondack path is along the strike of the predominant structural trends in northeastern North America, in the Grenville Province crust, while the Quebec-Maine path is at high angle to the structural grain and crosses the boundary between the Grenville and the Appalachian provinces. We thus have instrumental data in support of earlier observations based on contours of intensity from historic earthquakes: Seismic wave propagation in northeastern North America is more efficient along the predominantly NE-SW striking geological trends. We address possible biases due to site effects.

  18. Lake Charles CCS Project

    Energy Technology Data Exchange (ETDEWEB)

    Leib, Thomas [Leucadia Energy, LLC, Salt Lake City, UT (United States); Cole, Dan [Denbury Onshore, LLC, Plano, TX (United States)


    In late September 2014 development of the Lake Charles Clean Energy (LCCE) Plant was abandoned resulting in termination of Lake Charles Carbon Capture and Sequestration (CCS) Project which was a subset the LCCE Plant. As a result, the project was only funded through Phase 2A (Design) and did not enter Phase 2B (Construction) or Phase 2C (Operations). This report was prepared relying on information prepared and provided by engineering companies which were engaged by Leucadia Energy, LLC to prepare or review Front End Engineering and Design (FEED) for the Lake Charles Clean Energy Project, which includes the Carbon Capture and Sequestration (CCS) Project in Lake Charles, Louisiana. The Lake Charles Carbon Capture and Sequestration (CCS) Project was to be a large-scale industrial CCS project intended to demonstrate advanced technologies that capture and sequester carbon dioxide (CO2) emissions from industrial sources into underground formations. The Scope of work was divided into two discrete sections; 1) Capture and Compression prepared by the Recipient Leucadia Energy, LLC, and 2) Transport and Sequestration prepared by sub-Recipient Denbury Onshore, LLC. Capture and Compression-The Lake Charles CCS Project Final Technical Report describes the systems and equipment that would be necessary to capture CO2 generated in a large industrial gasification process and sequester the CO2 into underground formations. The purpose of each system is defined along with a description of its equipment and operation. Criteria for selection of major equipment are provided and ancillary utilities necessary for safe and reliable operation in compliance with environmental regulations are described. Construction considerations are described including a general arrangement of the CCS process units within the overall gasification project. A cost estimate is provided, delineated by system area with cost breakdown showing equipment, piping and materials

  19. Embryotoxicity of an extract from Great Lakes lake trout to rainbow trout and lake trout

    Energy Technology Data Exchange (ETDEWEB)

    Wright, P.J.; Tillitt, D.E. [National Biological Service, Columbia, MO (United States). Midwest Science Center


    Aquatic ecosystems such as the Great Lakes are known to be contaminated with chemicals that are toxic to fish. However, the role of these contaminants in reproductive failures of fishes, such as lake trout recruitment, has remained controvertible. It was the objective to evaluate dioxin-like embryotoxicity of a complex mixture of chemicals and predict their potential to cause the lack of recruitment in Great Lakes lake trout. Graded doses of a complex environmental extract were injected into eggs of both rainbow trout and lake trout. The extract was obtained from whole adult lake trout collected from Lake Michigan in 1988. The extract was embryotoxic in rainbow trout, with LD50 values for Arlee strain and Erwin strain of 33 eggEQ and 14 eggEQ respectively. The LOAEL for hemorrhaging, yolk-sac edema, and craniofacial deformities in rainbow trout were 2, 2, and 4 eggEQ, respectively. Subsequent injections of the extract into lake trout eggs were likewise embryotoxic, with an LD50 value of 7 eggEQ. The LOAEL values for the extract in lake trout for hemorrhaging, yolk-sac edema, and craniofacial deformities were 0.1, 1, and 2 eggEQ, respectively. The current levels of contaminants in lake trout eggs are above the threshold for hemorrhaging and yolk-sac edema. The results also support the use of an additive model of toxicity to quantify PCDDs, PCDFs, Non-o-PCBs, and Mono-o-PCBs in relation to early life stage mortality in Lake Michigan lake trout.

  20. Delineation of sympatric morphotypes of lake trout in Lake Superior (United States)

    Moore, Seth A.; Bronte, Charles R.


    Three morphotypes of lake trout Salvelinus namaycush are recognized in Lake Superior: lean, siscowet, and humper. Absolute morphotype assignment can be difficult. We used a size-free, whole-body morphometric analysis (truss protocol) to determine whether differences in body shape existed among lake trout morphotypes. Our results showed discrimination where traditional morphometric characters and meristic measurements failed to detect differences. Principal components analysis revealed some separation of all three morphotypes based on head and caudal peduncle shape, but it also indicated considerable overlap in score values. Humper lake trout have smaller caudal peduncle widths to head length and depth characters than do lean or siscowet lake trout. Lean lake trout had larger head measures to caudal widths, whereas siscowet had higher caudal peduncle to head measures. Backward stepwise discriminant function analysis retained two head measures, three midbody measures, and four caudal peduncle measures; correct classification rates when using these variables were 83% for leans, 80% for siscowets, and 83% for humpers, which suggests the measures we used for initial classification were consistent. Although clear ecological reasons for these differences are not readily apparent, patterns in misclassification rates may be consistent with evolutionary hypotheses for lake trout within the Laurentian Great Lakes.

  1. Forecasting Lake-Effect Snow in the Great Lakes Using NASA Satllite Data (United States)

    Cipullo, Michelle; Molthan, Andrew; Shafer, Jackie; Case, Jonathan; Jedlovec, Gary


    This slide presentation reviews the forecast of the lake effect snow in the Great Lakes region using models and infrared estimates of Great Lake Surface Temperatures (GLSTs) from the MModerate Resolution Imaging Spectroradiometer (MODIS) instrument on Terra and Aqua satellites, and other satellite data. This study analyzes Lake Erie and Lake Ontario which produce storm total snowfall ranged from 8-18 inches off of Lake Ontario and 10-12 inches off of Lake Erie for the areas downwind.

  2. Feeding competition between larval lake whitefish and lake herring (United States)

    Savino, Jacqueline F.; Hudson, Patrick L.


    The potential for competition for food between larval lake whitefish (Coregonus clupeaformis) and lake herring (C. artedi) 1- to 8-wk of age was explored in a series of 1-h laboratory feeding studies. Feeding started at 2-wk post-hatch. Learning and fish size appear to be more important than prey density at the onset of feeding. Species differed in their feeding behavior and consumption noticeably by 5-wk and substantially by 8-wk. Lake whitefish generally were more aggressive foragers than lake herring, attacking and capturing more prey. At high plankton density at 8-wk, lake herring feeding was depressed in mixed-fish treatments. This difference in competitive food consumption between the two coregonids occurs at a critical life stage, and when combined with other biotic and abiotic factors, may have a significant impact on recruitment.


    Energy Technology Data Exchange (ETDEWEB)



    The Pyramid Lake Renewable Energy Plan covers these areas: energy potential (primarily focusing on geothermal resource potential, but also more generally addressing wind energy potential); renewable energy market potential; transmission system development; geothermal direct use potential; and business structures to accomplish the development objectives of the Pyramid Lake Paiute Tribe.

  4. Surface seiches in Flathead Lake

    Directory of Open Access Journals (Sweden)

    G. Kirillin


    Full Text Available Standing surface waves or seiches are inherent hydrodynamic features of enclosed water bodies. Their two-dimensional structure is important for estimating flood risk, coastal erosion and bottom sediment transport and for understanding shoreline habitats and lake ecology in general. In this work, we present analysis of two-dimensional seiche characteristics in Flathead Lake, Montana, USA, a large intermountain lake known to have high seiche amplitudes. To examine spatial characteristics of different seiche modes we used the original procedure of determining the seiche frequencies from the primitive equation model output with subsequent derivation of the spatial seiche structure at fixed frequencies akin the tidal harmonic analysis. The proposed procedure revealed specific seiche oscillation features in Flathead Lake including maximum surface level amplitudes of the first fundamental mode in straights around the largest island; several higher modes appearing locally in the vicinity of the river inflow; the "Helmholtz" open harbor mode, with the period approximately twice that of the longest seiche mode, generated by a large shallow bay connected to the main lake basin; and several rotating seiche modes potentially affecting the lake-wide circulation. We discuss the lake management problems related to of the spatial seiche distribution, such as shoreline erosion, floods and transport of sediments and invasive species in Flathead Lake.

  5. Planktonic diatoms of Lake Ontario (United States)

    Reinwand, Jerry F.


    The major species of diatoms in surface collections from Lake Ontario in September 1964 were Asterionella formosa, Fragilaria crotonensis, and Tabellaris fenestrata. Dominant species in the deep-water samples were Stephanodiscus astraea, S. astraea var. mintula, and F. crotonensis. The diatom flora in surface collections varied among several stations in the eastern end of the lake.

  6. Europa's Great Lakes (United States)

    Schmidt, B. E.; Blankenship, D. D.; Patterson, G. W.; Schenk, P. M.


    Unique to the surface of Europa, chaos terrain is diagnostic of the properties and dynamics of its icy shell. While models have suggested that partial melt within a thick shell or melt-through of a thin shell may form chaos, neither model has been able to definitively explain all observations of chaos terrain. However, we present a new model that suggests large melt lenses form within the shell and that water-ice interactions above and within these lenses drive the production of chaos. Our analysis of the geomorphology of Conamara Chaos and Thera Macula, was used to infer and test a four-stage lens-collapse chaos formation model: 1) Thermal plumes of warm, pure ice ascend through the shell melting the impure brittle ice above, producing a lake of briny water and surface down draw due to volume reduction. 2) Surface deflection and driving force from the plume below hydraulically seals the water in place. 3) Extension of the brittle ice lid generates fractures from below, allowing brines to enter and fluidize the ice matrix. 4) As the lens and now brash matrix refreeze, thermal expansion creates domes and raises the chaos feature above the background terrain. This new "lense-collapse" model indicates that chaos features form in the presence of a great deal of liquid water, and that large liquid water bodies exist within 3km of Europa's surface comparable in volume to the North American Great Lakes. The detection of shallow subsurface "lakes" implies that the ice shell is recycling rapidly and that Europa may be currently active. In this presentation, we will explore environments on Europa and their analogs on Earth, from collapsing Antarctic ice shelves to to subglacial volcanos in Iceland. I will present these new analyses, and describe how this new perspective informs the debate about Europa's habitability and future exploration.

  7. Lake-floor sediment texture and composition of a hydrothermally-active, volcanic lake, Lake Rotomahana (United States)

    Pittari, A.; Muir, S. L.; Hendy, C. H.


    Young volcanic lakes undergo a transition from rapid, post-eruptive accumulation of volcaniclastic sediment to slower pelagic settling under stable lake conditions, and may also be influenced by sublacustrine hydrothermal systems. Lake Rotomahana is a young (129 year-old), hydrothermally-active, volcanic lake formed after the 1886 Tarawera eruption, and provides a unique insight into the early evolution of volcanic lake systems. Lake-bottom sediment cores, 20-46 cm in length, were taken along a transect across the lake and characterised with respect to stratigraphy, facies characteristics (i.e., grain size, componentry) and pore water silica concentrations. The sediments generally comprise two widespread facies: (i) a lower facies of light grey to grey, very fine lacustrine silt derived from the unconsolidated pyroclastic deposits that mantled the catchment area immediately after the eruption, which were rapidly reworked and redeposited into the lake basin; and (ii) an upper facies of dark, fine-sandy diatomaceous silt, that settled from the pelagic zone of the physically stable lake. Adjacent to sublacustrine hydrothermal vents, the upper dark facies is absent, and the upper part of the light grey to grey silt is replaced by a third localised facies comprised of hydrothermally altered pale yellow to yellowish brown, laminated silt with surface iron-rich encrustations. Microspheres, which are thought to be composed of amorphous silica, although some may be halloysite, have precipitated from pore water onto sediment grains, and are associated with a decrease in pore water silicon concentration. Lake Rotomahana is an example of a recently-stabilised volcanic lake, with respect to sedimentation, that shows signs of early sediment silicification in the presence of hydrothermal activity.

  8. Extracting a common high frequency signal from Northern Quebec black spruce tree-rings with a Bayesian hierarchical model

    Directory of Open Access Journals (Sweden)

    J.-J. Boreux


    Full Text Available One basic premise of dendroclimatology is that tree rings can be viewed as climate proxies, i.e. rings are assumed to contain some hidden information about past climate. From a statistical perspective, this extraction problem can be understood as the search of a hidden variable which represents the common signal within a collection of tree-ring width series. Classical average-based techniques used in dendrochronology have been applied to estimate the mean behavior of this latent variable. Still, depending on tree species, regional factors and statistical methods, a precise quantification of uncertainties associated to the hidden variable distribution is difficult to assess. To model the error propagation throughout the extraction procedure, we propose and study a Bayesian hierarchical model that focuses on extracting an inter-annual high frequency signal. Our method is applied to black spruce (Picea mariana tree-rings recorded in Northern Quebec and compared to a classical average-based techniques used by dendrochronologists (Cook and Kairiukstis, 1992.

  9. Hydro-Quebec and geomagnetic storms: measurement techniques, effects on transmission network and preventive actions since 1989. (United States)

    Beland, J.

    In March 1989 the province of Quebec in Canada suffered an almost complete blackout during a severe geomagnetic storm. Millions of Hydro-Québec's customers have been left without electricity for several hours. Fifteen years later, many changes have been implemented to avoid the repetition of such an event. Among them, we now have two measurement systems (one primary and one backup) monitoring ground induced current (GIC) effects on the grid in real time. Those systems are described and examples of data acquired during major storms (as in late October 2003) are given. To be informed in advance of a probable GIC occurrence, HQ now relies on a specialized organization providing geomagnetic activity alert and forecast. Following an alert or the detection of GIC effects on the network exceeding a minimal threshold, special operation rules become in effect with the objective of ensuring maximum stability and safety margin. Another major improvement is the introduction of series capacitors on several 735 kV lines, which increases network stability and also block GIC circulation. In conclusion, HQ now believes that its network can survive to any realistic geomagnetic storm.

  10. Extracting a common high frequency signal from northern Quebec black spruce tree-rings with a Bayesian hierarchical model

    Directory of Open Access Journals (Sweden)

    J.-J. Boreux


    Full Text Available Dendrochronology, the scientific dating method based on the analysis of tree-ring growth patterns, has been frequently applied in climatology. The basic premise of dendroclimatology is that tree rings can be viewed as climate proxies, i.e. rings are assumed to contain some hidden information about past climate. From a statistical perspective, this extraction problem can be understood as the search of a hidden variable which represents the common signal within a collection of tree-ring width series. Classical average-based techniques used in dendrochronology have been, with different degrees of success (depending on tree species, regional factors and statistical methods, applied to estimate the mean behavior of this latent variable. Still, a precise quantification of uncertainties associated to the hidden variable distribution is difficult to assess. To model the error propagation throughout the extraction procedure, we propose and study a Bayesian hierarchical model that focuses on extracting an inter-annual high frequency signal. Our method is applied to black spruce (Picea mariana tree-rings recorded in northern Quebec and compared to a classical average-based techniques used by dendrochronologists.

  11. Surveillance of social and geographic inequalities in housing-related issues: the case of the Eastern Townships, Quebec (Canada). (United States)

    Roy, Mathieu; Généreux, Mélissa; Laverdière, Emélie; Vanasse, Alain


    Even though health inequalities are conditioned by many aspects of the environment, much of the existing research focuses on the social environment. This emphasis has the effect to neglect other environmental aspects such as its physical dimension. The physical environment, which is linked to housing conditions, may contribute to the uneven distribution of health. In this study, we examined 19 housing-related issues among a representative sample of 2,000 adults residing in a Quebec (Canada) health region characterized by a mix of rural, semi-rural, and urban areas. The distribution of these issues was examined according to socioeconomic and geographic indicators of social position. Summary measures of inequalities were assessed. Our results showed that the prevalence of nearly all housing-related issues was higher among low-income households compared to more affluent ones. Highly educated individuals showed better housing conditions, whereas different issues tended to cluster in deprived or densely populated areas. To conclude, we observed steep gradients between social class and poor housing conditions. This may explain a substantial part of health inequality on the regional scale. The surveillance of housing-related issues is therefore essential to properly inform and mobilize local stakeholders and to develop interventions that target vulnerable groups on this level.

  12. Description of 44 biosecurity errors while entering and exiting poultry barns based on video surveillance in Quebec, Canada. (United States)

    Racicot, Manon; Venne, Daniel; Durivage, André; Vaillancourt, Jean-Pierre


    The effectiveness of biosecurity measures depends largely on the consistency of their applications by all those involved in poultry production. Unfortunately, poor biosecurity compliance has been reported repeatedly in poultry, as well in all other major animal productions. As part of a larger study, we conducted an investigation on eight poultry farms in Quebec, Canada, to evaluate compliance of existing biosecurity measures using hidden cameras. The objectives were to evaluate and describe the application of biosecurity measures when entering and exiting poultry barns. A total of 44 different mistakes were observed from 883 visits done by 102 different individuals. On average, four errors were recorded per visit. The maximum number of errors made by one individual during one visit was 14. People observed over several visits made on average six different errors. Twenty-seven out of the 44 errors (61.4%) were related to area delimitation (clean versus contaminated), six to boots (13.6%), five to hand washing (11.4%), three to coveralls (6.8%) and three to logbooks (6.8%). The nature and frequency of errors suggest a lack of understanding of biosecurity principles. There is thus a need to improve biosecurity training by making educational material available to all poultry personnel demonstrating why and how to apply biosecurity measures.

  13. Potential Impacts of Paleohydrological Changes on Holocene Methane Fluxes in Boreal and Subarctic Peatlands, James Bay, Quebec, Canada (United States)

    Garneau, M.; Ali, A.; Tremblay, L.; Pelletier, L.; Asnong, H.


    In boreal and subarctic region of the La Grande river watershed, James Bay, Quebec, Canada, peatlands cover closed to 15 % of the terrestrial surface. Multi proxy analysis results (plant macrofossils and Testate amoebae) from minerotrophic peatland have demonstrated important variations on the regional water table position since peat started to accumulate in the region ca 7400 cal BP. Macrofossil assemblages indicate that sites were first colonized by black spruce (Picea mariana Ait Muhl.) and Sphagnum spp which paludified with a regional rise of moisture at approx. 4500 BP. Drier conditions registered around 3900 cal BP induced a shift in vegetation and Testate amoeba assemblages for a relatively short period which was followed at approximately 3000 cal BP by an important increase in moisture. This shift in hydrological conditions involved drastic changes in the vegetation cover from Picea mariana and Sphagnum fuscum assemblages to sedges (Carex spp.) and wet Sphagnum species such as S. majus, S. subsecundum, S. pulchrum. This rise in the water table position could have induced enhance methane release to the atmosphere when considering the present-day methane fluxes/water table depth/vegetation cover relationship.

  14. Implementation of Integrated Service Networks under the Quebec Mental Health Reform: Facilitators and Barriers associated with Different Territorial Profiles

    Directory of Open Access Journals (Sweden)

    Marie-Josée Fleury


    Full Text Available Introduction: This study evaluates implementation of the Quebec Mental Health Reform (2005–2015, which promoted the development of integrated service networks, in 11 local service networks organized into four territorial groups according to socio-demographic characteristics and mental health services offered. Methods: Data were collected from documents concerning networks; structured questionnaires completed by 90 managers and by 16 respondent-psychiatrists; and semi-structured interviews with 102 network stakeholders. Factors associated with implementation and integration were organized according to: 1 reform characteristics; 2 implementation context; 3 organizational characteristics; and 4 integration strategies. Results: While local networks were in a process of development and expansion, none were fully integrated at the time of the study. Facilitators and barriers to implementation and integration were primarily associated with organizational characteristics. Integration was best achieved in larger networks including a general hospital with a psychiatric department, followed by networks with a psychiatric hospital. Formalized integration strategies such as service agreements, liaison officers, and joint training reduced some barriers to implementation in networks experiencing less favourable conditions. Conclusion: Strategies for the implementation of healthcare reform and integrated service networks should include sustained support and training in best-practices, adequate performance indicators and resources, formalized integration strategies to improve network coordination and suitable initiatives to promote staff retention.

  15. L-Lake macroinvertebrate community

    Energy Technology Data Exchange (ETDEWEB)

    Specht, W.L.


    To characterize the present benthic macroinvertebrate community of L-Lake, Regions 5 and 7 of the reservoir were sampled in September 1995 at the same locations sampled in 1988 and 1989 during the L-Lake monitoring program. The macroinvertebrate community of 1995 is compared to that of 1988 and 1989. The species composition of L-Lake`s macroinvertebrate community has changed considerably since 1988-1989, due primarily to maturation of the reservoir ecosystem. L-Lake contains a reasonably diverse macroinvertebrate community that is capable of supporting higher trophic levels, including a diverse assemblage of fish species. The L-Lake macroinvertebrate community is similar to those of many other southeastern reservoirs, and there is no indication that the macroinvertebrate community is perturbed by chemical or physical stressors.

  16. Net Greenhouse Gas Emissions at the Eastmain 1 Reservoir, Quebec, Canada (United States)

    Strachan, I. B.; Tremblay, A.; Bastien, J.; Bonneville, M.; Del Georgio, P.; Demarty, M.; Garneau, M.; Helie, J.; Pelletier, L.; Prairie, Y.; Roulet, N. T.; Teodoru, C. R.


    Canada has much potential to increase its already large use of hydroelectricity for energy production. However, hydroelectricity production in many cases requires the creation of reservoirs that inundate terrestrial ecosystems. While it has been reasonably well established that reservoirs emit GHGs, it has not been established what the net difference between the landscape scale exchange of GHGs would be before and after reservoir creation. Further, there is no indication of how that net difference may change over time from when the reservoir was first created to when it reaches a steady-state condition. A team of University and private sector researchers in partnership with Hydro-Québec has been studying net GHG emissions from the Eastmain 1 reservoir located in the boreal forest region of Québec, Canada. Net emissions are defined as those emitted following the creation of a reservoir minus those that would have been emitted or absorbed by the natural systems over a 100-year period in the absence of the reservoir. Sedimentation rates, emissions at the surface of the reservoir and natural water bodies, the degassing emissions downstream of the power house as well as the emissions/absorption of the natural ecosystems (forest, peatlands, lakes, streams and rivers) before and after the impoundment were measured using different techniques (Eddy covariance, floating chambers, automated systems, etc.). This project provides the first measurements of CO2 and CH4 between a new boreal reservoir and the atmosphere as the reservoir is being created, the development of the methodology to obtain these, and the first attempt at approaching the GHGs emissions from northern hydroelectric reservoirs as a land cover change issue. We will therefore provide: an estimate of the change in GHG source the atmosphere would see; an estimate of the net emissions that can be used for intercomparison of GHG contributions with other modes of power production; and a basis on which to develop

  17. 78 FR 53675 - Safety Zone; Lake Erie Heritage Foundation, Battle of Lake Erie Reenactment; Lake Erie, Put-in... (United States)


    ... Lake Erie Reenactment; Lake Erie, Put-in-Bay, OH AGENCY: Coast Guard, DHS. ACTION: Temporary final rule... vicinity of Put-In-Bay, OH. This safety zone is intended to restrict vessels from a portion of Lake Erie during Battle of Lake Erie Reenactment near Put-In-Bay. This temporary safety zone is necessary...

  18. 14 CFR 93.69 - Special requirements, Lake Campbell and Sixmile Lake Airports. (United States)


    ... 14 Aeronautics and Space 2 2010-01-01 2010-01-01 false Special requirements, Lake Campbell and... Anchorage, Alaska, Terminal Area § 93.69 Special requirements, Lake Campbell and Sixmile Lake Airports. Each person operating an aircraft to or from Lake Campbell or Sixmile Lake Airport shall conform to the...

  19. TOXAPHENE IN THE GREAT LAKES. (R825246) (United States)

    This paper presents the most current data for toxaphene in the water, sediments, and biota of the Laurentian Great Lakes of North America. Concentrations in water range from 1.1 ng/L in Lake Superior to 0.17 ng/L in Lake Ontario. Lake Superior has the highest water concentrati...

  20. Less Mixing Can Affect Lake s Ecosystem

    Institute of Scientific and Technical Information of China (English)




  1. Analysis of Drought in Poyang Lake

    Institute of Scientific and Technical Information of China (English)


    [Objective] The drought situation and causes in Poyang Lake were analyzed.[Method] In response to the drought in Poyang Lake in ten years ago and in recent 10 years,the causes of drought in Poyang Lake were discussed.[Result] Drought occurred frequently in Poyang Lake and the consecutive serious drought occurred now and then.The water level in Poyang Lake since 21st century was lower.The drought in Poyang Lake was due to reduction of precipitation,low water level in Yangtze River and "five lakes",hydraulic ...

  2. The Great Lakes' regional climate regimes (United States)

    Sugiyama, Noriyuki

    For the last couple of decades, the Great Lakes have undergone rapid surface warming. In particular, the magnitude of the summer surface-warming trends of the Great Lakes have been much greater than those of surrounding land (Austin and Colman, 2007). Among the Great Lakes, the deepest Lake Superior exhibited the strongest warming trend in its annual, as well as summer surface water temperature. We find that many aspects of this behavior can be explained in terms of the tendency of deep lakes to exhibit multiple regimes characterized, under the same seasonally varying forcing, by the warmer and colder seasonal cycles exhibiting different amounts of wintertime lake-ice cover and corresponding changes in the summertime lake-surface temperatures. In this thesis, we address the problem of the Great Lakes' warming using one-dimensional lake modeling to interpret diverse observations of the recent lake behavior. (Abstract shortened by ProQuest.).

  3. Rehabilitation of Delavan Lake, Wisconsin (United States)

    Robertson, Dale M.; Goddard, Gerald L.; Helsel, D.R.; MacKinnon, Kevin L.


    A comprehensive rehabilitation plan was developed and implemented to shift Delavan Lake, Wisconsin, from a hypereutrophic to a mesotrophic condition. The plan was threefold: (1) reduce external phosphorus (P) loading by applying Best Management Practices in the watershed, enhance an existing wetland, and short-circuit the inflows through the lake, (2) reduce internal P loading by treating the sediments with alum and removing carp, and (3) rehabilitate the fishery by removing carp and bigmouth buffalo and adding piscivores (biomanipulation). The first and second parts of the plan met with only limited success. With only minor reductions in internal and external P loading, P concentrations in the lake returned to near pre-treatment concentrations. The intensive biomanipulation and resulting trophic cascade (increased piscivores, decreased planktivores, increased large zooplankton populations, and reduced phytoplankton populations) eliminated most of the original problems in the lake (blue-green algal blooms and limited water clarity). However, now there is extensive macrophyte growth and abundant filamentous algae. Without significantly reducing the sources of the problems (high P loading) in Delavan Lake, the increased water clarity may not last. With an improved understanding of the individual components of this rehabilitation program, better future management plans can be developed for Delavan Lake and other lakes and reservoirs with similar eutrophication problems.

  4. Microplastics in Taihu Lake, China. (United States)

    Su, Lei; Xue, Yingang; Li, Lingyun; Yang, Dongqi; Kolandhasamy, Prabhu; Li, Daoji; Shi, Huahong


    In comparison with marine environments, the occurrence of microplastics in freshwater environments is less understood. In the present study, we investigated microplastic pollution levels during 2015 in Taihu Lake, the third largest Chinese lake located in one of the most developed areas of China. The abundance of microplastics reached 0.01 × 10(6)-6.8 × 10(6) items/km(2) in plankton net samples, 3.4-25.8 items/L in surface water, 11.0-234.6 items/kg dw in sediments and 0.2-12.5 items/g ww in Asian clams (Corbicula fluminea). The average abundance of microplastics was the highest in plankton net samples from the southeast area of the lake and in the sediments from the northwest area of the lake. The northwest area of the lake was the most heavily contaminated area of the lake, as indicated by chlorophyll-α and total phosphorus. The microplastics were dominated by fiber, 100-1000 μm in size and cellophane in composition. To our best knowledge, the microplastic levels measured in plankton net samples collected from Taihu Lake were the highest found in freshwater lakes worldwide. The ratio of the microplastics in clams to each sediment sample ranged from 38 to 3810 and was negatively correlated to the microplastic level in sediments. In brief, our results strongly suggest that high levels of microplastics occurred not only in water but also in organisms in Taihu Lake.

  5. Advance and application of lake optics research

    Institute of Scientific and Technical Information of China (English)


    The mainstreams of lake optics research in recent decades include optical properties of lakewater,observation, transmission and calculation of underwater radiation, determination of absorption coefficient S of yellow substance, influence of UV-B radiation of lake primary productivity by bio-optical model. Major lake optics applications, such as calculation of lake primary productivity and chl-a, analysis of factors restricting eutrophication, and protection against lake eutrophication are summarized.

  6. Monitoring Change in Great Salt Lake (United States)

    Naftz, David; Angeroth, Cory; Freeman, Michael; Rowland, Ryan; Carling, Gregory


    Great Salt Lake is the largest hypersaline lake in the Western Hemisphere and the fourth largest terminal lake in the world (Figure 1). The open water and adjacent wetlands of the Great Salt Lake ecosystem support millions of migratory waterfowl and shorebirds from throughout the Western Hemisphere [Aldrich and Paul, 2002]. In addition, the area is of important economic value: Brine shrimp (Artemia franciscana) residing in Great Salt Lake support an aquaculture shrimp cyst industry with annual revenues as high as $60 million.

  7. 2010 Great Lakes Restoration Initiative Bathymetric Lidar: Lake Superior (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The data contained in this file contain hydrographic and topographic data collected by the Fugro LADS Mk II system along the Lake Superior coast of Minnessota,...

  8. Chase Lake Wetland Management District, Chase Lake Prairie Project: Annual narrative report: Calendar year 1994 (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for Chase Lake WMD, Chase Lake Prairie Project, and Halfway Lake NWR outlines Refuge accomplishments during the 1994 calendar year. The...

  9. Annual narrative report 1995: Chase Lake Wetland Management District, Chase Lake Prairie Project (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for Chase Lake WMD, Chase Lake Prairie Project, and Halfway Lake NWR outlines Refuge accomplishments during the 1995 calendar year. The...

  10. Chase Lake Wetland Management District, Chase Lake Prairie Project: Annual narrative report - 1993 (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for Chase Lake WMD, Chase Lake Prairie Project, and Halfway Lake NWR outlines Refuge accomplishments during the 1993 calendar year. The...

  11. Lake trout in the Great Lakes: Basin-wide stock collapse and binational restoration (United States)

    Hansen, Michael J.; Taylor, William W.; Ferreri, C. Paola


    The lake trout (Salvelinus namaycush) was important to the human settlement of each of the Great Lakes, and underwent catastrophic collapses in each lake in the nineteenth and twentieth centuries. The timing of lake trout stock collapses were different in each lake, as were the causes of the collapses, and have been the subject of much scientific inquiry and debate. The purpose of this chapter is to summarize and review pertinent information relating historical changes in Great Lakes lake trout stocks, binational efforts to restore those stocks, and progress toward stock restoration. This presentation attempts to generalize patterns across the Great Lakes, rather than to focus within each lake. Lake specific analyses have been used to understand lake specific causes and effects, but there is continuing debate about some of these causes and effects. A basinwide review may suggest mechanisms for observed changes that are not evident by lake specific analysis.

  12. Comparing milled fiber, Quebec ore, and textile factory dust: has another piece of the asbestos puzzle fallen into place? (United States)

    Berman, D Wayne


    Results of a meta-analysis indicate that the variation in potency factors observed across published epidemiology studies can be substantially reconciled (especially for mesothelioma) by considering the effects of fiber size and mineral type, but that better characterization of historical exposures is needed before improved exposure metrics potentially capable of fully reconciling the disparate potency factors can be evaluated. Therefore, an approach for better characterizing historical exposures, the Modified Elutriator Method (MEM), was evaluated to determine the degree that dusts elutriated using this method adequately mimic dusts generated by processing in a factory. To evaluate this approach, elutriated dusts from Grade 3 milled fiber (the predominant feedstock used at a South Carolina [SC] textile factory) were compared to factory dust collected at the same facility. Elutriated dusts from chrysotile ore were also compared to dusts collected in Quebec mines and mills. Results indicate that despite the substantial variation within each sample set, elutriated dusts from Grade 3 fiber compare favorably to textile dusts and elutriated ore dusts compare to dusts from mines and mills. Given this performance, the MEM was also applied to address the disparity in lung cancer mortality per unit of exposure observed, respectively, among chrysotile miners/millers in Quebec and SC textile workers. Thus, dusts generated by elutriation of stockpiled chrysotile ore (representing mine exposures) and Grade 3 milled fiber (representing textile exposures) were compared. Results indicate that dusts from each sample differ from one another. Despite such variation, however, the dusts are distinct and fibers in Grade 3 dusts are significantly longer than fibers in ore dusts. Moreover, phase-contrast microscopy (PCM) structures in Grade 3 dusts are 100% asbestos and counts of PCM-sized structures are identical, whether viewed by PCM or transmission electron microscope (TEM). In

  13. Estimation de l'equivalent en eau de la neige en milieu subarctique du Quebec par teledetection micro-ondes passives (United States)

    Vachon, Francois

    The snow cover (extent, depth and water equivalent) is an important factor in assessing the water balance of a territory. In a context of deregulation of electricity, better knowledge of the quantity of water resulting from snowmelt that will be available for hydroelectric power generation has become a major challenge for the managers of Hydro-Quebec's generating plant. In fact, the snow on the ground represents nearly one third of Hydro-Quebec's annual energy reserve and the proportion is even higher for northern watersheds. Snowcover knowledge would therefore help optimize the management of energy stocks. The issue is especially important when one considers that better management of water resources can lead to substantial economic benefits. The Research Institute of Hydro-Quebec (IREQ), our research partner, is currently attempting to optimize the streamfiow forecasts made by its hydrological models by improving the quality of the inputs. These include a parameter known as the snow water equivalent (SWE) which characterizes the properties of the snow cover. At the present time, SWE data is obtained from in situ measurements, which are both sporadic and scattered, and does not allow the temporal and spatial variability of SWE to be characterized adequately for the needs of hydrological models. This research project proposes to provide the Quebec utility's hydrological models with distributed SWE information about its northern watersheds. The targeted accuracy is 15% for the proposed period of analysis covering the winter months of January, February and March of 2001 to 2006. The methodology is based on the HUT snow emission model and uses the passive microwave remote sensing data acquired by the SSM/I sensor. Monitoring of the temporal and spatial variations in SWE is done by inversion of the model and benefits from the assimilation of in situ data to characterize the state of snow cover during the season. Experimental results show that the assimilation technique

  14. Nutrient signature of Quebec (Canada cranberry (Vaccinium macrocarpon Ait. Perfil nutritivo de atocas (Vaccinium macrocarpon Ait. - cranberry cultivadas no Québec, Canadá

    Directory of Open Access Journals (Sweden)

    Sébastien Marchand


    Full Text Available Fertilizer recommendations for cranberry crops are guided by plant and soil tests. However, critical tissue concentration ranges used for diagnostic purposes are inherently biased by nutrient interactions and physiological age. Compositional data analysis using isometric log ratios (ilr of nutrients as well as time detrending can avoid numerical biases. The objective was to derive unbiased nutrient signature standards for cranberry in Quebec and compare those standards to literature data. Field trials were conducted during 3 consecutive years with varying P treatments at six commercial sites in Quebec. Leaf tissues were analyzed for N, P, K, Ca, Mg, B, Cu, Zn, Mn and Fe. The analytical results were transformed into ilr nutrient balances of parts and groups of parts. High-yield reference ilr values were computed for cranberry yielding greater than 35 Mg ha-1. Many cranberry fields appeared to be over-supplied with K and either under-supplied with Mn or over-supplied with Fe as shown by their imbalanced [K | Ca, Mg] and [Mn | Fe] ratios. Nutrient concentration ranges from Maine and Wisconsin, USA, were combined into ilr values to generate ranges of balances. It was found that these nutrient ranges were much too broad for application in Quebec or outside the Quebec ranges for the [Ca | Mg] and the [Mn | Fe] balances, that were lower compared to those of high yielding cranberry crops in Quebec.As recommendações de fertilizantes da cultura atoca são determinadas a partir de análises de planta e solo. No entanto, as faixas críticas de concentração nos tecidos utilizados para fins de diagnóstico são influenciadas por interações de nutrientes e pela idade fisiológica. A análise de dados composicionais log isométricas (ilr de nutrientes, bem como a idade fisiológica podem ser removidas numéricamente na interpretação dos dados analíticos dos tecidos. Nosso objetivo foi obter padrões imparciais para o perfil nutrivo da atóca, cultivada

  15. Restoration in northern Lake Gehu, a eutrophic lake in China (United States)

    Wu, Xiaodong; Li, Wenchao; Pan, Jizheng; Ma, Shuzhan; Chen, Bingfa; He, Shangwei


    Lake Gehu is a severely eutrophic lake in southeast China. A series of restoration measures have been implemented since 2009 in northern Lake Gehu. This study compared aquatic plants, water quality, sediment, and phytoplankton between restoration and control areas to investigate the effect of restoration measures. The results demonstrated that aquatic macrophyte coverage increased from 0% to 10.6%; mean TP, TN, and CODMn concentrations increased by 50.0%, 42.4%, and 40.8%, respectively, compared with those before the measures were carried out; the mean Secchi depth (SD) increased to 42.5 cm, which is 1.4 times higher than that before restoration; the mean euphotic depth (Zeu) in the summer increased from 91 to 130 cm; the mean chl a concentration decreased from 34.8 to 20.2 μg/L, compared with that before restoration; the Shannon-Wiener index of phytoplankton increased by 28.7%. The mean TP and TN concentrations in sediments decreased by 63.8% and 52.4%, respectively, compared with that before dredging. These results indicate that the restoration in northern Lake Gehu was effective. To complete the transformation from an algae- to a macrophyte-stable state within the region, further measures must be adopted. This restoration of a eutrophic lake can serve as a reference for similar eutrophic lakes.

  16. Morphological variation of siscowet lake trout in Lake Superior (United States)

    Bronte, C.R.; Moore, S.A.


    Historically, Lake Superior has contained many morphologically distinct forms of the lake trout Salvelinus namaycush that have occupied specific depths and locations and spawned at specific times of the year. Today, as was probably the case historically, the siscowet morphotype is the most abundant. Recent interest in harvesting siscowets to extract oil containing omega-3 fatty acids will require additional knowledge of the biology and stock structure of these lightly exploited populations. The objective of this study was to determine whether shape differences exist among siscowet populations across Lake Superior and whether these shape differences can be used to infer stock structure. Morphometric analysis (truss protocol) was used to differentiate among siscowets sampled from 23 locations in Lake Superior. We analyzed 31 distance measurements among 14 anatomical landmarks taken from digital images of fish recorded in the field. Cluster analysis of size-corrected data separated fish into three geographic groups: The Isle Royale, eastern (Michigan), and western regions (Michigan). Finer scales of stock structure were also suggested. Discriminant function analysis demonstrated that head measurements contributed to most of the observed variation. Cross-validation classification rates indicated that 67–71% of individual fish were correctly classified to their region of capture. This is the first study to present shape differences associated with location within a lake trout morphotype in Lake Superior.

  17. Holocene lake deposits of Bosten Lake, southern Xinjiang, China

    Institute of Scientific and Technical Information of China (English)

    B. Wünnemann; CHEN Fahu; F. Riedel; ZHANG Chengjun; S. Mischke; CHEN Guangjie; D. Demske; MING Jin


    A 9.25-m-long sediment core from Bosten Lake, Xinjiang, provides detailed information about changes in the water budget and biological acticity over the last 8400 calendar years. The chronology is constructed from six AMS radiocarbon dates on the terrestrial plant remains. Based on analyses of TOC, CO3, detrital compounds and biogenic SiO2, lake level fluctuations and periods of remarkably-negative water budget appeared at 8.4-8.2 cal ka, 7.38-7.25 cal ka, 5.7-5.5 cal ka, 3.7-3.4 cal ka and 3.3-2.9 cal ka, respectively. As they are in-phase with low lake levels at Sumxi Co and Bangong Co in western Tibet Plateau and with paleolakes in Inner Mongolia, a climate-induced change to somewhat drier andwarmer conditions is inferred. A further drop in lake level after 1320 AD of about 200 yr duration may be attributed to a negative water balance prior to the main phase of the Little Ice Age. Deep and stable lake phases of 1500 yr and 1800yr duration at 7.2-5.7 cal ka and 5.5-3.7 cal ka coincide with maximum moisture during the Holocene Megathermal in China. The long term trend towards ariditysince about 4.3 cal ka can clearly be recognised. The reduced water budget of Bosten Lake from 640-1200 AD may be attributed to local effects.

  18. Incidence of epithelial lesions of the conjunctiva in a review of 12,102 specimens in Canada (Quebec

    Directory of Open Access Journals (Sweden)

    Luiz Filipe de Albuquerque Alves


    Full Text Available PURPOSE: The purpose of this study was to assess the relative frequency of epithelial lesions of the conjunctiva in Canada. METHODS: A retrospective study of 12,102 consecutive cases received during 16 years (1993-2009 at the Henry C. Witelson Ocular Pathology Laboratory in Montreal, Canada, was performed. Demographic data was retrieved from histopathological request forms and specimens were categorized and analyzed by mean percentage. The relative frequency of epithelial lesions of the conjunctiva from a single center in Canada, representing the province of Quebec was reviewed. RESULTS: Of the 12,102 specimens reviewed, 273 were conjunctival lesions (2.25%, including 86 epithelial tumors (0.71% of the conjunctiva that comprised the studied sample. The average age of these patients was 59.9 ± 17.6 years, and gender distribution was 66 (69% males and 30 (31% females. Fifteen lesions (17.4% were classified as squamous cell papillomas (mean age, 57.3 ± 16.7 years. Within the ocular surface squamous neoplasia (OSSN spectrum, there were 10 (11.6% actinic keratosis (63.8 ± 17.6 years, 27 (31.3% cases of conjunctival intraepithelial neoplasia (CIN with variable degrees of atypia (mild to moderate (63.9 ± 15.3 years, 15 (17.4% carcinomas in situ (66.7 ± 18.0 years, and 17 (19.7% squamous cell carcinomas (SCC (56.2 ± 19.4 years. Two other rare cases of malignant tumors included one basal cell carcinoma and one mucoepidermoid carcinoma. CONCLUSIONS: The distribution of our sample is similar to the one reported by the American Forces Institute of Pathology (AFIP in 1994. When we compare our sample to others coming from countries with high levels of sunlight exposure, we found a lower incidence of ocular surface squamous neoplasia, including squamous cell carcinomas in Canada.

  19. Water quality impact assessment of agricultural Beneficial Management Practices (BMPs) simulated for a regional catchment in Quebec, Eastern Canada (United States)

    Rousseau, Alain N.; Hallema, Dennis W.; Gumiere, Silvio J.; Savary, Stéphane; Hould Gosselin, Gabriel


    Water quality has become a matter of increasing concern over the past four decades as a result of the intensification of agriculture, and more particularly so in Canada where agriculture has evolved into the largest non-point source of surface water pollution. The Canadian WEBs project (Watershed Evaluation of Beneficial Management Practices, BMPs) was initiated in order to determine the efficiency of BMPs in improving the surface water quality of rural catchments, and the economic aspects related to their implementation on the same scale. In this contribution we use the integrated watershed modelling platform GIBSI (Gestion Intégrée des Bassins versants à l'aide d'un Système Informatisé) to evaluate the effects of various BMPs on sediment and nutrient yields and, in close relation to this, the surface water quality for the Beaurivage River catchment (718 km2) in Quebec, eastern Canada. A base scenario of the catchment is developed by calibrating the different models of the GIBSI platform, namely HYDROTEL for hydrology, the Revised Universal Soil Loss Equation (RUSLE) for soil erosion, the Erosion-Productivity Impact Calculator (EPIC) of the Soil and Water Assessment Tool (SWAT) for contaminant transport and fate, and QUAL2E for stream water quality. Four BMPs were analysed: (1) vegetated riparian buffer strips, (2) precision slurry application, (3) transition of all cereal and corn fields to grassland (grassland conversion), and (4) no-tillage on corn fields. Simulations suggest that riparian buffer strips and grassland conversion are more effective in terms of phosphorus, nitrogen and sediment load reduction than precision slurry application and no-tillage on corn fields. The results furthermore indicate the need for a more profound understanding of sediment dynamics in streams and on riparian buffer strips.

  20. Large-Scale Variations in Lumber Value Recovery of Yellow Birch and Sugar Maple in Quebec, Canada.

    Directory of Open Access Journals (Sweden)

    Mariana Hassegawa

    Full Text Available Silvicultural restoration measures have been implemented in the northern hardwoods forests of southern Quebec, Canada, but their financial applicability is often hampered by the depleted state of the resource. To help identify sites most suited for the production of high quality timber, where the potential return on silvicultural investments should be the highest, this study assessed the impact of stand and site characteristics on timber quality in sugar maple (Acer saccharum Marsh. and yellow birch (Betula alleghaniensis Britt.. For this purpose, lumber value recovery (LVR, an estimate of the summed value of boards contained in a unit volume of round wood, was used as an indicator of timber quality. Predictions of LVR were made for yellow birch and sugar maple trees contained in a network of more than 22000 temporary sample plots across the Province. Next, stand-level variables were selected and models to predict LVR were built using the boosted regression trees method. Finally, the occurrence of spatial clusters was verified by a hotspot analysis. Results showed that in both species LVR was positively correlated with the stand age and structural diversity index, and negatively correlated with the number of merchantable stems. Yellow birch had higher LVR in areas with shallower soils, whereas sugar maple had higher LVR in regions with deeper soils. The hotspot analysis indicated that clusters of high and low LVR exist across the province for both species. Although it remains uncertain to what extent the variability of LVR may result from variations in past management practices or in inherent site quality, we argue that efforts to produce high quality timber should be prioritized in sites where LVR is predicted to be the highest.

  1. Nutrient Patterns and Their Food Sources in Older Persons from France and Quebec: Dietary and Lifestyle Characteristics

    Directory of Open Access Journals (Sweden)

    Benjamin Allès


    Full Text Available Background: Dietary and nutrient patterns have been linked to health outcomes related to aging. Food intake is influenced by environmental and genetic factors. The aim of the present study was to compare nutrient patterns across two elderly populations sharing a common ancestral cultural background, but living in different environments. Methods: The diet quality, lifestyle and socioeconomic characteristics of participants from the Three-City Study (3C, France, n = 1712 and the Québec Longitudinal Study on Nutrition and Successful Aging (NuAge, Quebec, Canada, n = 1596 were analyzed. Nutrient patterns and their food sources were identified in the two samples using principal component analysis. Diet quality was compared across sample-specific patterns by describing weekly food intake and associations with the Canadian Healthy Eating Index (C-HEI. Results: Three nutrient patterns were retained in each study: a healthy, a Western and a more traditional pattern. These patterns accounted for 50.1% and 53.5% of the total variance in 3C and NuAge, respectively. Higher education and non-physical occupations over lifetime were associated with healthy patterns in both studies. Other characteristics such as living alone, having a body mass index lower than 25 and being an ex-smoker were associated with the healthy pattern in NuAge. No association between these characteristics and the nutrient patterns was noted in 3C. The healthy and Western patterns from each sample also showed an inverse association with C-HEI. Conclusion: The two healthy patterns showed important similarities: adequate food variety, consumption of healthy foods and associations with common sociodemographic factors. This work highlights that nutrient patterns derived using a posteriori methods may be useful to compare the nutritional quality of the diet of distinct populations.

  2. Actinorhizal Alder Phytostabilization Alters Microbial Community Dynamics in Gold Mine Waste Rock from Northern Quebec: A Greenhouse Study.

    Directory of Open Access Journals (Sweden)

    Katrina L Callender

    Full Text Available Phytotechnologies are rapidly replacing conventional ex-situ remediation techniques as they have the added benefit of restoring aesthetic value, important in the reclamation of mine sites. Alders are pioneer species that can tolerate and proliferate in nutrient-poor, contaminated environments, largely due to symbiotic root associations with the N2-fixing bacteria, Frankia and ectomycorrhizal (ECM fungi. In this study, we investigated the growth of two Frankia-inoculated (actinorhizal alder species, A. crispa and A. glutinosa, in gold mine waste rock from northern Quebec. Alder species had similar survival rates and positively impacted soil quality and physico-chemical properties in similar ways, restoring soil pH to neutrality and reducing extractable metals up to two-fold, while not hyperaccumulating them into above-ground plant biomass. A. glutinosa outperformed A. crispa in terms of growth, as estimated by the seedling volume index (SVI, and root length. Pyrosequencing of the bacterial 16S rRNA gene for bacteria and the ribosomal internal transcribed spacer (ITS region for fungi provided a comprehensive, direct characterization of microbial communities in gold mine waste rock and fine tailings. Plant- and treatment-specific shifts in soil microbial community compositions were observed in planted mine residues. Shannon diversity and the abundance of microbes involved in key ecosystem processes such as contaminant degradation (Sphingomonas, Sphingobium and Pseudomonas, metal sequestration (Brevundimonas and Caulobacter and N2-fixation (Azotobacter, Mesorhizobium, Rhizobium and Pseudomonas increased over time, i.e., as plants established in mine waste rock. Acetate mineralization and most probable number (MPN assays showed that revegetation positively stimulated both bulk and rhizosphere communities, increasing microbial density (biomass increase of 2 orders of magnitude and mineralization (five-fold. Genomic techniques proved useful in

  3. Aboveground carbon in Quebec forests: stock quantification at the provincial scale and assessment of temperature, precipitation and edaphic properties effects on the potential stand-level stocking. (United States)

    Duchesne, Louis; Houle, Daniel; Ouimet, Rock; Lambert, Marie-Claude; Logan, Travis


    Biological carbon sequestration by forest ecosystems plays an important role in the net balance of greenhouse gases, acting as a carbon sink for anthropogenic CO2 emissions. Nevertheless, relatively little is known about the abiotic environmental factors (including climate) that control carbon storage in temperate and boreal forests and consequently, about their potential response to climate changes. From a set of more than 94,000 forest inventory plots and a large set of spatial data on forest attributes interpreted from aerial photographs, we constructed a fine-resolution map (∼375 m) of the current carbon stock in aboveground live biomass in the 435,000 km(2) of managed forests in Quebec, Canada. Our analysis resulted in an area-weighted average aboveground carbon stock for productive forestland of 37.6 Mg ha(-1), which is lower than commonly reported values for similar environment. Models capable of predicting the influence of mean annual temperature, annual precipitation, and soil physical environment on maximum stand-level aboveground carbon stock (MSAC) were developed. These models were then used to project the future MSAC in response to climate change. Our results indicate that the MSAC was significantly related to both mean annual temperature and precipitation, or to the interaction of these variables, and suggest that Quebec's managed forests MSAC may increase by 20% by 2041-2070 in response to climate change. Along with changes in climate, the natural disturbance regime and forest management practices will nevertheless largely drive future carbon stock at the landscape scale. Overall, our results allow accurate accounting of carbon stock in aboveground live tree biomass of Quebec's forests, and provide a better understanding of possible feedbacks between climate change and carbon storage in temperate and boreal forests.

  4. The Evolution of beliefs and opinions on matters related to marriage and sexual behaviour among French-speaking Catholic Quebecers and English-speaking Protestant Ontarians

    Directory of Open Access Journals (Sweden)

    Miller, Caia


    Full Text Available EnglishThe authors argue that the important changes in behaviour related to family andsexual life that were seen in Quebec during the second half of the 20th centuryare a consequence of a major transformation of the foundation of the normativesystem shared by the members of Quebec's main socio-religious group, French speakingCatholics. Using data from Gallup polls, the authors compare theevolution of the opinions of French-speaking Quebec Catholics and English speakingOntario Protestants on matters related to sexual and family behaviourfrom the 1950s to the beginning of the 2000s. The general result is that theevolution of the differences between the two groups is compatible with thehypothesis.FrenchLes auteurs proposent d’expliquer les importants changements qui se sontproduits, dans le Québec de la deuxième moitié du 20e siècle, dans lescomportements liés à la famille et à la vie sexuelle par la transformation dusystème normatif des membres de son principal groupe socio-religieux, lesfrancophones catholiques. À partir des données de sondages Gallup, ilscomparent l'évolution des opinions des francophones catholiques du Québec etdes anglophones protestants de l’Ontario sur des questions liées à la famille etau comportement sexuel et de famille des années 1950 à 2000. L’évolution desdifférences entre les deux groupes est compatible avec l’hypothèse.

  5. Audubon National Wildlife Refuge, Lake Nettie National Wildlife Refuge, Camp Lake Easement Refuge, Wintering River Easement Refuge, Cottonwood Lake Easement Refuge, Sheyenne Lake Easement Refuge, Lake Otis Easement Refuge : Narrative report : 1970 (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for Audubon National Wildlife Refuge (including Lake Nettie National Wildlife Refuge, Camp Lake Easement Refuge, Cottonwood Lake...

  6. Aquatic macrophyte richness in Danish lakes in relation to alkalinity, transparency, and lake area

    DEFF Research Database (Denmark)

    Vestergaard, Ole Skafte; Sand-Jensen, Kaj


    alkalinity but 12.3 in lakes of high alkalinity due to a greater occurrence of the species-rich group of elodeids. Mean species richness per lake also increased significantly with increasing Secchi depth. No significant relationship between species richness and lake surface area was observed among the entire...... group of lakes or a subset of eutrophic lakes, as the growth of submerged macrophytes in large lakes may be restricted by wave action in shallow water and light restriction in deep water. In contrast, macrophyte species richness increased with lake surface area in transparent lakes, presumably due...

  7. Folsom Lake 2005 Sedimentation Survey (United States)

    US Bureau of Reclamation, Department of the Interior — The Bureau of Reclamation (Reclamation) surveyed Folsom Lake in the fall of 2005 via an interagency agreement with the U.S. Army Corps of Engineers (Corps of...

  8. Lake Ladora sampling plan, 1993 (United States)

    US Fish and Wildlife Service, Department of the Interior — Task plan from the U.S. Geological Survey for sampling Lake Ladora on the Rocky Mountain National Wildlife Refuge. During the review of the FY93 Surface-Water...

  9. Lakes Ecosystem Services Download Package (United States)

    U.S. Environmental Protection Agency — This data download package contains Esri 10.0 MXDs, file geodatabases and copy of this FGDC metadata record. The data in this package are used in support of the Lake...

  10. Great Lakes Environmental Research Laboratory (United States)

    Federal Laboratory Consortium — NOAA-GLERL and its partners conduct innovative research on the dynamic environments and ecosystems of the Great Lakes and coastal regions to provide information for...

  11. Management recommendations: Benton Lake Complex (United States)

    US Fish and Wildlife Service, Department of the Interior — This document is a review of land management practices at the Benton Lake Complex, by a land use specialist. Recommendations, time frame and additional comments are...

  12. Management recommendations: Sand Lake Complex (United States)

    US Fish and Wildlife Service, Department of the Interior — This document is a review of land management practices at the Sand Lake National Wildlife Refuge, by a land use specialist. Recommendations, time frame and...

  13. Great Lakes Initiative (GLI) Clearinghouse (United States)

    U.S. Environmental Protection Agency — The Great Lakes Initiative Toxicity Data Clearinghouse is a central location for information on criteria, toxicity data, exposure parameters and other supporting...

  14. Functional microbiology of soda lakes. (United States)

    Sorokin, Dimitry Y; Banciu, Horia L; Muyzer, Gerard


    Soda lakes represent unique permanently haloalkaline system. Despite the harsh conditions, they are inhabited by abundant, mostly prokaryotic, microbial communities. This review summarizes results of studies of main functional groups of the soda lake prokaryotes responsible for carbon, nitrogen and sulfur cycling, including oxygenic and anoxygenic phototrophs, aerobic chemolithotrophs, fermenting and respiring anaerobes. The main conclusion from this work is that the soda lakes are very different from other high-salt systems in respect to microbial richness and activity. The reason for this difference is determined by the major physico-chemical features of two dominant salts - NaCl in neutral saline systems and sodium carbonates in soda lakes, that are influencing the amount of energy required for osmotic adaptation.

  15. Dar Sentido à Experiência do Gesto na Classe Técnica: um olhar sobre a prática de quatro professoras no Quebec

    Directory of Open Access Journals (Sweden)

    Johanna Bienaise


    Full Text Available Este artigo examina o ensino da classe técnica contemporânea na formação pré-profissional no Quebec em um contexto de heterogeneidade das práticas coreográficas. Analisa-se mais especificamente o testemunho de quatro artistas professores: Kelly Keenan, Manon Levac, Sandrine Vachon e Jamie Wright. Essa análise destaca suas filosofias de ensino e as escolhas pedagógicas que conduzem essas educadoras a uma abordagem do movimento corporal ao mesmo tempo estruturada e sensível, em uma relação constantemente renovada com seus estudantes.

  16. Effects of lake trout refuges on lake whitefish and cisco in the Apostle Islands Region of Lake Superior (United States)

    Zuccarino-Crowe , Chiara M.; Taylor, William W.; Hansen, Michael J.; Seider, Michael J.; Krueger, Charles C.


    Lake trout refuges in the Apostle Islands region of Lake Superior are analogous to the concept of marine protected areas. These refuges, established specifically for lake trout (Salvelinus namaycush) and closed to most forms of recreational and commercial fishing, were implicated as one of several management actions leading to successful rehabilitation of Lake Superior lake trout. To investigate the potential significance of Gull Island Shoal and Devils Island Shoal refuges for populations of not only lake trout but also other fish species, relative abundances of lake trout, lake whitefish (Coregonus clupeaformis), and cisco (Coregonus artedi) were compared between areas sampled inside versus outside of refuge boundaries. During 1982–2010, lake trout relative abundance was higher and increased faster inside the refuges, where lake trout fishing was prohibited, than outside the refuges. Over the same period, lake whitefish relative abundance increased faster inside than outside the refuges. Both evaluations provided clear evidence that refuges protected these species. In contrast, trends in relative abundance of cisco, a prey item of lake trout, did not differ significantly between areas inside and outside the refuges. This result did not suggest indirect or cascading refuge effects due to changes in predator levels. Overall, this study highlights the potential of species-specific refuges to benefit other fish species beyond those that were the refuges' original target. Improved understanding of refuge effects on multiple species of Great Lakes fishes can be valuable for developing rationales for refuge establishment and predicting associated fish community-level effects.

  17. Changes in Rongbuk lake and Imja lake in the Everest region of Himalaya (United States)

    Chen, W.; Doko, T.; Liu, C.; Ichinose, T.; Fukui, H.; Feng, Q.; Gou, P.


    The Himalaya holds the world record in terms of range and elevation. It is one of the most extensively glacierized regions in the world except the Polar Regions. The Himalaya is a region sensitive to climate change. Changes in the glacial regime are indicators of global climate changes. Since the second half of the last century, most Himalayan glaciers have melted due to climate change. These changes directly affected the changes of glacial lakes in the Himalayan region due to the glacier retreat. New glacial lakes are formed, and a number of them have expanded in the Everest region of the Himalayas. This paper focuses on the two glacial lakes which are Imja Lake, located at the southern slope, and Rongbuk Lake, located at the northern slope in the Mt. Everest region, Himalaya to present the spatio-temporal changes from 1976 to 2008. Topographical conditions between two lakes were different (Kruskal-Wallis test, p Lake was located at 623 m higher than Imja Lake, and radiation of Rongbuk Lake was higher than the Imja Lake. Although size of Imja Lake was larger than the Rongbuk Lake in 2008, the growth speed of Rongbuk Lake was accelerating since 2000 and exceeds Imja Lake in 2000-2008. This trend of expansion of Rongbuk Lake is anticipated to be continued in the 21st century. Rongbuk Lake would be the biggest potential risk of glacial lake outburst flood (GLOF) at the Everest region of Himalaya in the future.

  18. Limnology of selected lakes in Ohio, 1975 (United States)

    Tobin, Robert L.; Youger, John D.


    Water-quality reconnaissance by the U.S. Geological Survey and Ohio Environmental Protection Agency, to evaluate the status of Ohio's lakes and reservoirs was begun in 1975 with studies of 17 lakes. Spring and summer data collections for each lake included: profile measurements of temperature, dissolved oxygen, pH, and specific conductance; field and laboratory analyses of physical, biological, chemical organic characteristics; (nutrient), and concentrations of major and minor chemical constituents from composites of the water column; and physical and chemical data from major inflows.Light penetration (secchi disk) ranged from 9.4 feet (2.9 meters) in Lake Hope to 0.4 feet (0.1 meter) in Acton Lake. Seasonal thermal stratification or stability is shown for 10 lakes deeper than 15 feet (4.6 meters). Unstable or modified temperature profiles were observed in shallow lakes (depths less than 15 feet) or lakes controlled through subsurface release valves.Dissolved oxygen saturation ranged from 229 percent (20.8 milligrams per liter) in the epilimnion of Paint Creek Lake to zero in the bottom waters of all thermally stabilized lakes. Marked chemical and physical differences and nutrient uptake and recycling developed within different thermal strata. Anaerobic zones were frequently characterized by hydrogen sulfide and ammonia.Calcium was the dominant or codominant cation, and bicarbonate and(or) sulfate were the major anions in all lakes sampled. Only Hope and Vesuvius Lakes had soft water (hardness less than 61 milligrams per liter as CaCO3 ), and both lakes were further characterized by low pH (less than 7.0). Specific conductance ranged from 510 micromhos (Deer Creek and Salt Fork Lakes) to 128 micromhos (Lake Hope). Pesticide residues were detected in Acton Lake, and concentrations of one or more trace metals were at or above Ohio Environmental Protection Agency recommended limits in 11 lakes.Fecal coliform colony counts were below 400 colonies per 100 milliliters in

  19. Investigation of the dramatic changes in lake level of the Bosten Lake in northwestern China (United States)

    Guo, Mengjing; Wu, Wei; Zhou, Xiaode; Chen, Yongmin; Li, Jing


    Bosten Lake, located in the arid region of northwest China, is the largest inland freshwater lake in China. Water resources in Bosten Lake are of great importance for the regional drinking water supply, agricultural irrigation, and economic development of Xinjiang province. In this study, the dynamics of the lake level in Bosten Lake were investigated from 1956 to 2010. We found that the lake level experienced three different periods of change due to the combined influences of climate variation and human activities. Generally, the lake level has shown a significant downward trend since the first observation started in 1956 and dropped to its lowest level in 1987. Thereafter, the lake level presented a continuous upward trend and rose to its highest value in 2002. Then, the level decreased dramatically from 2002 to 2010. A water balance model and the climate elasticity method were used to estimate the reasons for the lake level changes of Bosten Lake. The results showed that an increase in lake evaporation led to the continuous decrease in lake level from 1958 to 1987. Then, human-controlled lake outflow and increasing lake inflow together led to the increase in lake level from 1988 to 2002. During 2003 to 2010, the emergency project of transferring water to Tarim River led to the increase in lake outflow, while the lake inflow obviously decreased because of a decrease in precipitation. These factors resulted in a sharp decrease in the lake level from 2003 to 2010. The changes in lake level indicate changes in available water resources from Bosten Lake. This reason for the analysis of the change in lake level in this study is to support the water resources management of Bosten Lake.

  20. A census of colonially breeding waterbirds on Lake Louise and Skilak Lake, Alaska, 21-22 July 1981 (United States)

    US Fish and Wildlife Service, Department of the Interior — This report presents a census of colonial waterbird sites at Lake Louise and Slikak lake on 21 and 22 July 1981 respectively. Both Lake Louise and Skilak Lake are...

  1. Deoxygenation of Lake Ikeda, Japan (United States)

    Nagata, R.; Hasegawa, N.


    Lake Ikeda (Kagoshima prefecture, Japan) is a deep lake with a maximum depth of 233 m. Monitoring data of lake Ikeda exist since 1975. We have analyzed the long-term variability in the water conditions of Lake Ikeda. Recently, Lake Ikeda has exhibited the phenomenon of incomplete overturning because of climate warming. The concentrations of DO (dissolved oxygen) in the deepest parts of the lake have reduced. This phenomenon was observed to have started in the 1980s, and gradually, the deepest parts of the lake became anoxic. Later, the anoxic layer became thicker. Currently, winter mixing in Lake Ikeda reaches to depths of only 100 m. According to our simple estimation, the total volume of oxygen in Lake Ikeda will reduce from approximately 70% in the mid-1980s to 40% by the end of 2010. In addition to this phenomenon, the oxygen concentration appears to vary with several years oscillations. The depths to which mixing occurs depends on the severity of the winter, such as the air temperature during the winter season. The mixing period generally occurs in February; hence, the limnological year is considered to start in February. During our analysis period, the total DO mass showed high values in 1996, 2001, and 2003. Air temperature data obtained for regions near Lake Ikeda (the station name is Ibusuki) are used to clarify the cause of the high DO mass values in the three abovementioned years. During the period prior to the occurrence of the high DO mass in February 1996, i.e., in December 1995 and January 1996, the air temperature was low. Similarly, in 2001 and 2003, the air temperature was low in January (one month before the high DO mass was observed). In January 2001 and 2003, the AO (Atlantic Oscillation) index was negative. When the AO index is negative, there tends to be a greater movement of cold polar air into mid-latitudinal regions including Japan (Yamakawa, 2005). This movement induced a low air temperature in Ibusuki, and consequently, a high DO mass

  2. Hutton Lake NWR, Mortenson Lake NWR, and Bamforth Lake NWR : Annual water management plans, 2004 water use report (United States)

    US Fish and Wildlife Service, Department of the Interior — Water use reports for 2004 and annual water management plans for 2005 for Mortenson Lake National Wildlife Refuge, Hutton Lake National Wildlife Refuge, and Bamforth...

  3. Lake Naivasha, Kenya (United States)


    If you live in Europe and buy roses, there is a good chance that they were grown in Kenya specifically, in one of the colossal greenhouses that blot out the once wild shores of Lake Naivasha, 90km north-west of Nairobi. Some 25% of Europe's cut flowers come from Kenya. After a tentative start in the 1980s the industry is now the country's third-largest foreign-currency earner, bringing in $120m a year. But the recent violence in Kenya is having a major impact on the flower growers. A local trade union says 3,000 of the 30,000 workers employed in Naivasha's flower farms have abandoned their jobs. Kenya emerged as a flower power when Israel scaled down its own industry. It has since lost business to neighboring Ethiopia, which offers tax breaks and better security, but Naivasha's perfect intensity of sunlight and days of near-constant length should keep it on top. The ASTER image was acquired February 2, 2008, covers an area of 25 x 26.6 km, and is located near 0.8 degrees south latitude, 36.4 degrees east longitude. The U.S. science team is located at NASA's Jet Propulsion Laboratory, Pasadena, Calif. The Terra mission is part of NASA's Science Mission Directorate.

  4. The Economic Value of the Greater Montreal Blue Network (Quebec, Canada): A Contingent Choice Study Using Real Projects to Estimate Non-Market Aquatic Ecosystem Services Benefits. (United States)

    Poder, Thomas G; Dupras, Jérôme; Fetue Ndefo, Franck; He, Jie


    This study used a contingent choice method to determine the economic value of improving various ecosystem services (ESs) of the Blue Network of Greater Montreal (Quebec, Canada). Three real projects were used and the evaluation focused on six ESs that are related to freshwater aquatic ecosystems: biodiversity, water quality, carbon sequestration, recreational activities, landscape aesthetics and education services. We also estimated the value associated with the superficies of restored sites. We calculated the monetary value that a household would be willing to pay for each additional qualitative or quantitative unit of different ESs, and these marginal values range from $0.11 to $15.39 per household per unit. Thus, under certain assumptions, we determined the monetary values that all Quebec households would allocate to improve each ES in Greater Montreal by one unit. The most valued ES was water quality ($13.5 million), followed by education services ($10.7 million), recreational activities ($8.9 million), landscape aesthetics ($4.1 million), biodiversity ($1.2 million), and carbon sequestration ($0.1 million). Our results ascribe monetary values to improved (or degraded) aquatic ecosystems in the Blue Network of Greater Montreal, but can also enhance economic analyses of various aquatic ecosystem restoration and management projects.

  5. The Economic Value of the Greater Montreal Blue Network (Quebec, Canada): A Contingent Choice Study Using Real Projects to Estimate Non-Market Aquatic Ecosystem Services Benefits (United States)

    Dupras, Jérôme; Fetue Ndefo, Franck; He, Jie


    This study used a contingent choice method to determine the economic value of improving various ecosystem services (ESs) of the Blue Network of Greater Montreal (Quebec, Canada). Three real projects were used and the evaluation focused on six ESs that are related to freshwater aquatic ecosystems: biodiversity, water quality, carbon sequestration, recreational activities, landscape aesthetics and education services. We also estimated the value associated with the superficies of restored sites. We calculated the monetary value that a household would be willing to pay for each additional qualitative or quantitative unit of different ESs, and these marginal values range from $0.11 to $15.39 per household per unit. Thus, under certain assumptions, we determined the monetary values that all Quebec households would allocate to improve each ES in Greater Montreal by one unit. The most valued ES was water quality ($13.5 million), followed by education services ($10.7 million), recreational activities ($8.9 million), landscape aesthetics ($4.1 million), biodiversity ($1.2 million), and carbon sequestration ($0.1 million). Our results ascribe monetary values to improved (or degraded) aquatic ecosystems in the Blue Network of Greater Montreal, but can also enhance economic analyses of various aquatic ecosystem restoration and management projects. PMID:27513558

  6. A Comparison Study of Volatile Organic Compound Species and Concentrations in Snow Samples From Rural Sites in South-Western Quebec and at Alert, Nunavut (United States)

    Mortazavi, R.; Kos, G.; Ariya, P. A.


    An intercomparison study was undertaken to evaluate volatile organic compound (VOC) species and concentrations in snow from different environments. Samples were collected in semi-urban/rural environments in Montreal, south-western Quebec, approximately 50 and 150 km east and north of Montreal, Quebec. Samples were also collected in the High Arctic near Alert, Nunavut. Analysis was carried out using pre- concentration with solid phase micro-extraction (SPME) and subsequent analyses using gas chromatography systems fitted with mass spectrometric (GC/MS) and flame ionisation detectors (GC/FID). Headspace and liquid phase of the snow samples were analysed. Bacterial and fungal species were isolated from sampled snow and their ice nucleation ability was assessed. Results demonstrate how VOC species and concentrations vary with the degree of anthropogenic activity and how long-range transport causes anthropogenic compounds to get deposited in the snow pack of remote areas. It is also shown, that snow provides a reservoir of various photo-labile compounds, and serves as an active site for microbiological processes. Atmospheric implications of the results will be discussed.

  7. Normative data for a computer-assisted version of the auditory three-consonant Brown-Peterson paradigm in the elderly French-Quebec population. (United States)

    Callahan, Brandy L; Belleville, Sylvie; Ferland, Guylaine; Potvin, Olivier; Tremblay, Marie-Pier; Hudon, Carol; Macoir, Joël


    The Brown-Peterson task is used to assess verbal short-term memory as well as divided attention. In its auditory three-consonant version, trigrams are presented to participants who must recall the items in correct order after variable delays, during which an interference task is performed. The present study aimed to establish normative data for this test in the elderly French-Quebec population based on cross-sectional data from a retrospective, multi-center convenience sample. A total of 595 elderly native French-speakers from the province of Quebec performed the Memoria version of the auditory three-consonant Brown-Peterson test. For both series and item-by-item scoring methods, age, education, and, in most cases, recall after a 0-second interval were found to be significantly associated with recall performance after 10-second, 20-second, and 30-second interference intervals. Based on regression model results, equations to calculate Z scores are presented for the 10-second, 20-second and 30-second intervals and for each scoring method to allow estimation of expected performance based on participants' individual characteristics. As an important ceiling effect was observed at the 0-second interval, norms for this interference interval are presented in percentiles.

  8. Evaluation of the midwifery pilot projects in Quebec: an overview. L'Equipe d'Evaluation des Projets-Pilotes Sages-Femmes. (United States)

    Blais, R; Joubert, P


    In 1990, the province of Quebec adopted a law authorizing the evaluation of the practice of midwifery through eight pilot projects. The projects, which took the form of birth centres outside hospitals, started operating in 1994. The objectives of the evaluation were 1) to compare midwives' services to current physician services with regard to maternal and neonatal mortality and morbidity, the use of obstetrical intervention, individualization and continuity of care as perceived by clients, and cost; and 2) to identify the professional and organizational factors associated with the integration of midwives into the health care system. A mixed evaluative design was used: a multiple case study with each pilot project representing a case and a cohort study where 1,000 women followed by midwives in the birth centres were matched with 1,000 women followed by physicians in the usual hospital-based services. Various quantitative and qualitative data collection instruments were used. Overall, many results were favourable to midwifery practice, while some were favourable to medical care. Following the evaluation, the Government of Quebec decided to legalize the practice of midwifery.

  9. Validation of the Tswana Versions of the Roland-Morris Disability Questionnaire, Quebec Disability Scale and Waddell Disability Index

    Directory of Open Access Journals (Sweden)

    N. De Beer


    Full Text Available The use of reliable and valid outcome measures inclinical research as well as clinical practice is very important. Selfreported questionnaires are widely used as outcome measures to assessthe subjective perception of disability caused by low back pain (LBP.The Roland Morris Disability Questionnaire (RMDQ, Quebec DisabilityScale (QDS and Waddell Disability Index (W DI have been identifiedas reliable and valid instruments for assessing disability caused by LPBin English speaking patients. The fact that we do not yet have a validatedand published version of the RMDQ, QDS and W DI in a local SouthA frican language was the motivation to undertake this study.  The threequestionnaires were translated, back-translated and tested in a final version for use with Tswana speaking subjects. The questionnaires were tested on one hundred respondents, who metthe inclusion criteria, at five hospitals in Tswana speaking areas. Of the one hundred respondents 31 were retested 24 hours later. The Visual A nalogue Pain Intensity Scale (VA S-Pain and Disability Rating Index (DRI were used ascorrelation tools. There was moderate correlation between the RMDQ and the DRI (0.74 and the W DI and the DRI(0.63. The correlation between the QDS and DRI was strong (0.85. The RMDQ, QDS and W DI correlated moderatelywith the VA S-Pain (0.63, 0.68 and 0.74, respectively. The RMDQ, QDS and W DI appeared to be internally consistentscales with Cronbach’s alpha values of 0.92, 0.95 and 0.75, respectively. The RMDQ, QDS and W DI showed excel-lent test-retest reliability with intra-class correlation coefficient values of 0.93, 0.91 and 0.84, respectively. The resultssuggest that the Tswana versions of the RMDQ, QDS and W DI validated in this study are easy to understand, validand reliable instruments for the measurement of functional disability caused by LBP in a Tswana speaking population.Therefore these translated instruments may be useful clinical instruments for collecting

  10. Analysis of landslide development using aerial photographs and DEMs comparison, along part of the Chacoura River valley, Quebec, Canada. (United States)

    Lévy, S.; Locat, J.; Jaboyedoff, M.; Demers, D.; Loye, A.


    The large plains of Eastern Canada sensitive clays are cut by numerous rivers, in a way that their slopes have been and are still affected by landslides. They play an important role in the modelling of the landscape of these regions. Hence, the role of erosion as a trigger of landslides is important. On the Chacoura River, north of Louiseville (Quebec), several large landslides scars, more or less recent, are visible. A first inventory of areas of erosion, slides and landslides clay was carried out by Locat et al. (1984) on some series of aerial photographs covering a period from 1948 to 1979. This study is based on a detailed analysis of aerial photographs, dating from 1948 to 1997 and an airborne LiDAR digital elevation model (DEM-LiDAR), dating from 2007, in a GIS environment, using two different approaches: (1) a map of the phenomena was drawn by identifying various elements such as land movements, limits of the slope, position of the river, the area covered by forest and agricultural drainage structures, e.g., and (2) the comparison of DEMs was performed to estimate slipped and eroded volumes, the rate of erosion on a section of the river (about 6 km) and the spatial distribution of movements. The results show that the location of landslides is directly linked to the presence of some characteristic topographical features, such as (1) the shape of the meandering river, (2) the flow of agricultural drainage, or (3) the erosion at the toe of the slope. Finally, the study of landslides over a period of 60 years shows that the major landslide scars in this area could be in fact the sum of several events of lesser importance. For example, a large landslide (around 13'000 m2) occurred in 1976 at the same place where a first landslide of 1500 m2 in 1964. Locat, J., Demers, D., Lebuis, J. and Rissmann, P. (1984), Prédiction des Glissements de Terrain; Application aux Argiles Sensibles, Rivière Chacoura, Québec, Canada, the IV International Symposium on Landslides

  11. Combining stochastic weather generation and ensemble streamflow predictions for short to medium term flow forecasting over Quebec, Canada (United States)

    Brissette, F.; Chen, J.; Li, Z.; Turcotte, R.


    Probabilistic streamflow forecasting has been an important research avenue over the past decade and such approaches are now more commonly being incorporated into operational forecasting systems within government agencies and industries dealing with water management. This work details a prototype for a streamflow forecast operational system in southern Quebec, Canada. The system uses ensemble meteorological forecasts for short term (less than 10 days) forecasting, switching to a stochastic weather generator for the period exceeding 10 days all the way to a three-month lead time. Precipitation and temperature series are then fed to one (or many) hydrological models to produce streamflow forecasts. The ensemble weather forecasts are corrected for biases and under dispersion using logistic regression. Results show that the ensemble streamflow forecasts resulting from the ensemble meteorological forecast have more skill than the deterministic forecasts. Preliminary results indicate that ensemble meteorological forecasts displayed skill for a period up to 5 days for precipitation and up to about 10 days for temperature. Past ten days, probabilistic streamflow forecasts are based on multiple synthetic times series obtained from a stochastic weather generator. The use of stochastic time series result in better forecasts then resampling the historical record and allows for better evaluation of extreme events. The weather generator can easily be linked to large scale seasonal global predictors, is such links exist. Over the tested basins (continental climate), the system forecast has skills up to a lead time of 4 weeks in the best case. For a lead-time between one and three months, using the forecast prototype yielded no better results than using the historical streamflow record. This work also investigated the uncertainty linked to the choice of one hydrology model and the ability of a multi-model approach to improve streamflow forecasting. Preliminary results showed that

  12. Exploring trends, causes, and consequences of declining lipids in Lake Superior lake trout (United States)

    The ability of lake trout to forage in deepwater habitats is facilitated by high lipid content, which affords buoyancy. In Lake Superior, lean lake trout historically occupied depths < 80 m, and siscowet lake trout occupied depths > 80 m. Siscowets have been known f...

  13. 77 FR 23123 - Special Local Regulation; Smokin The Lake; Gulfport Lake; Gulfport, MS (United States)


    ... SECURITY Coast Guard 33 CFR Part 100 RIN 1625-AA08 Special Local Regulation; Smokin The Lake; Gulfport Lake... persons on navigable waters during the Smokin The Lake high speed boat races on May 5 and 6, 2012. Entry... associated with the Smokin The Lake high speed boat races. Basis and Purpose On February 27, 2012, Smokin...

  14. Clearing lakes. An ecosystem approach to the restoration and management of shallow lakes in the Netherlands.

    NARCIS (Netherlands)

    Hosper, H.


    In the 1950 s and 1960 s, most shallow lakes in the Netherlands shifted from macrophyte-dominated clear water lakes, towards algae-dominated turbid water lakes. Eutrophication, i.e. increased nutrient loading, is the main cause of the deterioration of the lake ecosystems. Other perturbations, such a

  15. Biota - 2011 Vegetation Inventory - Marsh Lake, MN (United States)

    Army Corps of Engineers, Department of the Army, Department of Defense — 2011 Vegetation Classification for Marsh Lake, MN Vegetation Project Report, OMBIL Environmental Stewardship - Level 1 Inventory. Marsh Lake is located on the...

  16. Medicine Lake NWR Water Use Report- 1939 (United States)

    US Fish and Wildlife Service, Department of the Interior — This report contains locations and water use at Medicine Lake NWR for 1939. The document provides tabulated data for each area of Medicine Lake NWR, including the...

  17. Medicine Lake NWR Water Use Report- 1944 (United States)

    US Fish and Wildlife Service, Department of the Interior — This report contains locations and water use at Medicine Lake NWR for 1944. The document provides tabulated data for each area of Medicine Lake NWR, including the...

  18. Medicine Lake NWR Water Use Report- 1946 (United States)

    US Fish and Wildlife Service, Department of the Interior — This report contains locations and water use at Medicine Lake NWR for 1946. The document provides tabulated data for each area of Medicine Lake NWR, including the...

  19. Medicine Lake NWR Water Use Report- 1950 (United States)

    US Fish and Wildlife Service, Department of the Interior — This report contains locations and water use at Medicine Lake NWR for 1950. The document provides tabulated data for each area of Medicine Lake NWR, including the...

  20. Medicine Lake NWR Water Use Report- 1951 (United States)

    US Fish and Wildlife Service, Department of the Interior — This report contains locations and water use at Medicine Lake NWR for 1951. The document provides tabulated data for each area of Medicine Lake NWR, including the...

  1. Clarks Hill Lake Water Quality Study. (United States)


    MACROINVERTEBRATE TAXONOMIC LIST CLARKS HILL LAKE 1981 Phylum Platyhelminthes Order Diptera Class Turbellaria Ablabesmyia parajanta unidentified Planariidae A...HILL LAKE 1981 Phylum Platyhelminthes Order Diptera (continued) Planaria sp.,’ Bezzia sp. 2 unidentified Planariidae Chaoborus punctipennis unidentified

  2. Medicine Lake NWR Water Use Report- 1947 (United States)

    US Fish and Wildlife Service, Department of the Interior — This report contains locations and water use at Medicine Lake NWR for 1947. The document provides tabulated data for each area of Medicine Lake NWR, including the...

  3. Medicine Lake NWR Water Use Report- 1952 (United States)

    US Fish and Wildlife Service, Department of the Interior — This report contains locations and water use at Medicine Lake NWR for 1952. The document provides tabulated data for each area of Medicine Lake NWR, including the...

  4. Medicine Lake NWR Water Use Report- 1948 (United States)

    US Fish and Wildlife Service, Department of the Interior — This report contains locations and water use at Medicine Lake NWR for 1948. The document provides tabulated data for each area of Medicine Lake NWR, including the...

  5. Medicine Lake NWR Water Use Report- 1943 (United States)

    US Fish and Wildlife Service, Department of the Interior — This report contains locations and water use at Medicine Lake NWR for 1943. The document provides tabulated data for each area of Medicine Lake NWR, including the...

  6. Medicine Lake NWR Water Use Report- 1955 (United States)

    US Fish and Wildlife Service, Department of the Interior — This report contains locations and water use at Medicine Lake NWR for 1955. The document provides tabulated data for each area of Medicine Lake NWR, including the...

  7. Medicine Lake NWR Water Use Report- 1949 (United States)

    US Fish and Wildlife Service, Department of the Interior — This report contains locations and water use at Medicine Lake NWR for 1949. The document provides tabulated data for each area of Medicine Lake NWR, including the...

  8. Medicine Lake NWR Water Use Report- 1956 (United States)

    US Fish and Wildlife Service, Department of the Interior — This report contains locations and water use at Medicine Lake NWR for 1956. The document provides tabulated data for each area of Medicine Lake NWR, including the...

  9. Karluk Lake sockeye salmon studies 1984: Draft (United States)

    US Fish and Wildlife Service, Department of the Interior — This report summarizes the findings of a study on Karluk Lake sockeye salmon. The objectives of the study were to: collect sediment core samples from Karluk Lake and...

  10. Togiak National Wildlife Refuge lake surveys, 1984 (United States)

    US Fish and Wildlife Service, Department of the Interior — Preliminary review of the data reveals that all lakes surveyed can be classified as having low conductibility, ranging from the low 20's for the Goodnews Lakes to...

  11. Preparation of aluminium lakes by electrocoagulation


    Prapai Pradabkham


    Aluminium lakes have been prepared by electrocoagulation employing aluminium as electrodes. The electrocoagulation is conducted in an aqueous alcoholic solution and is completed within one hour. The dye content in the lake ranges approximately between 4-32%.

  12. Global Lake and River Ice Phenology Database (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Global Lake and River Ice Phenology Database contains freeze and thaw/breakup dates as well as other descriptive ice cover data for 865 lakes and rivers in the...

  13. Thermokarst lakes, drainage, and drained basins (United States)

    Grosse, G.; Jones, B.; Arp, C.; Shroder, John F.


    Thermokarst lakes and drained lake basins are widespread in Arctic and sub-Arctic permafrost lowlands with ice-rich sediments. Thermokarst lake formation is a dominant mode of permafrost degradation and is linked to surface disturbance, subsequent melting of ground ice, surface subsidence, water impoundment, and positive feedbacks between lake growth and permafrost thaw, whereas lake drainage generally results in local permafrost aggradation. Thermokarst lakes characteristically have unique limnological, morphological, and biogeochemical characteristics that are closely tied to cold-climate conditions and permafrost properties. Thermokarst lakes also have a tendency toward complete or partial drainage through permafrost degradation and erosion. Thermokarst lake dynamics strongly affect the development of landscape geomorphology, hydrology, and the habitat characteristic of permafrost lowlands.

  14. Medicine Lake NWR Water Use Report- 1945 (United States)

    US Fish and Wildlife Service, Department of the Interior — This report contains locations and water use at Medicine Lake NWR for 1945. The document provides tabulated data for each area of Medicine Lake NWR, including the...

  15. Recent warming of lake Kivu.

    Directory of Open Access Journals (Sweden)

    Sergei Katsev

    Full Text Available Lake Kivu in East Africa has gained notoriety for its prodigious amounts of dissolved methane and dangers of limnic eruption. Being meromictic, it is also expected to accumulate heat due to rising regional air temperatures. To investigate the warming trend and distinguish between atmospheric and geothermal heating sources, we compiled historical temperature data, performed measurements with logging instruments, and simulated heat propagation. We also performed isotopic analyses of water from the lake's main basin and isolated Kabuno Bay. The results reveal that the lake surface is warming at the rate of 0.12°C per decade, which matches the warming rates in other East African lakes. Temperatures increase throughout the entire water column. Though warming is strongest near the surface, warming rates in the deep waters cannot be accounted for solely by propagation of atmospheric heat at presently assumed rates of vertical mixing. Unless the transport rates are significantly higher than presently believed, this indicates significant contributions from subterranean heat sources. Temperature time series in the deep monimolimnion suggest evidence of convection. The progressive deepening of the depth of temperature minimum in the water column is expected to accelerate the warming in deeper waters. The warming trend, however, is unlikely to strongly affect the physical stability of the lake, which depends primarily on salinity gradient.

  16. Zooplankton communities in a large prealpine lake, Lake Constance: comparison between the Upper and the Lower Lake

    Directory of Open Access Journals (Sweden)

    Gerhard MAIER


    Full Text Available The zooplankton communities of two basins of a large lake, Lake Constance, were compared during the years 2002 and 2003. The two basins differ in morphology, physical and chemical conditions. The Upper Lake basin has a surface area of 470 km2, a mean depth of 100 and a maximum depth of 250 m; the Lower Lake basin has a surface area of 62 km2, a mean depth of only 13 and a maximum depth of 40 m. Nutrient, chlorophyll-a concentrations and mean temperatures are somewhat higher in the Lower than in the Upper Lake. Total abundance of rotifers (number per m2 lake surface was higher and rotifer development started earlier in the year in the Lower than in the Upper Lake. Total abundance of crustaceans was higher in the Upper Lake in the year 2002; in the year 2003 no difference in abundance could be detected between the lake basins, although in summer crustacean abundance was higher in the Lower than in the Upper Lake. Crustacean communities differed significantly between lake basins while there was no apparent difference in rotifer communities. In the Lower Lake small crustaceans, like Bosmina spp., Ceriodaphnia pulchella and Thermocyclops oithonoides prevailed. Abundance (number per m2 lake surface of predatory cladocerans, large daphnids and large copepods was much lower in the Lower than in the Upper Lake, in particular during the summer months. Ordination with nonmetric multidimensional scaling (NMS separated communities of both lakes along gradients that correlated with temperature and chlorophyll a concentration. Clutches of copepods were larger in the Lower than in the Upper Lake. No difference could be detected in clutch size of large daphnids between lake basins. Our results show that zooplankton communities in different basins of Lake Constance can be very different. They further suggest that the lack of large crustaceans in particular the lack of large predatory cladocerans in the Lower Lake can have negative effects on growth and

  17. Monitoring change in Great Salt Lake (United States)

    Naftz, David L.; Angeroth, Cory E.; Freeman, Michael L.; Rowland, Ryan C.; Carling, Gregory


    Despite the ecological and economic importance of Great Salt Lake, only limited water quality monitoring has occurred historically. To change this, new monitoring stations and networks—gauges of lake level height and rate of inflow, moored buoys, and multiple lake-bottom sensors—will provide important information that can be used to make informed decisions regarding future management of the Great Salt Lake ecosystem.

  18. The Tomb Statues beside Dongqian Lake

    Institute of Scientific and Technical Information of China (English)



    Located 17 kilometers to the City of Ningbo, Dongqian Lake covers an area of 20 square kilometers, which is four only the biggest freshwater lake in Zhejiang Province but atso renowned for its gorgeous scenery. Recently, this beautiful lake once again caught people's eye because a large number of Southern Song Dynasty (1127-1279) gravestone statues were discovered among the mountains beside the lake area.

  19. Estimating the volume of Alpine glacial lakes (United States)

    Cook, S. J.; Quincey, D. J.


    Supraglacial, moraine-dammed and ice-dammed lakes represent a potential glacial lake outburst flood (GLOF) threat to downstream communities in many mountain regions. This has motivated the development of empirical relationships to predict lake volume given a measurement of lake surface area obtained from satellite imagery. Such relationships are based on the notion that lake depth, area and volume scale predictably. We critically evaluate the performance of these existing empirical relationships by examining a global database of glacial lake depths, areas and volumes. Results show that lake area and depth are not always well correlated (r2 = 0.38) and that although lake volume and area are well correlated (r2 = 0.91), and indeed are auto-correlated, there are distinct outliers in the data set. These outliers represent situations where it may not be appropriate to apply existing empirical relationships to predict lake volume and include growing supraglacial lakes, glaciers that recede into basins with complex overdeepened morphologies or that have been deepened by intense erosion and lakes formed where glaciers advance across and block a main trunk valley. We use the compiled data set to develop a conceptual model of how the volumes of supraglacial ponds and lakes, moraine-dammed lakes and ice-dammed lakes should be expected to evolve with increasing area. Although a large amount of bathymetric data exist for moraine-dammed and ice-dammed lakes, we suggest that further measurements of growing supraglacial ponds and lakes are needed to better understand their development.

  20. First evidence of successful natural reproduction by planted lake trout in Lake Huron (United States)

    Nester, Robert T.; Poe, Thomas P.


    Twenty-two lake trout (Salvelinus namaycush) swim-up fry, 24-27 mm long, were captured with emergent fry traps and a tow net in northwestern Lake Huron on a small nearshore reef off Alpena, Michigan, between May 10 and June 1, 1982. These catches represent the first evidence of successful production of swim-up fry by planted, hatchery-reared lake trout in Lake Huron since the lake trout rehabilitation program began in 1973.

  1. Salt Lake in Chaidamu Basin

    Institute of Scientific and Technical Information of China (English)



    Chaidamu Basin(柴达木盆地) is in the west of China. It covers an area(地区) of 220,000 square kilometres(平方公里). The number of salt lakes(盐湖) is more than twenty in it. Chaerhan(察尔汗) Salt Lake is the largest in this area. If you get here, you will find that in the lake there is no water but a thick layer(层) of salt. You can walk in it without difficulty, and cars can come and go across it. The thickest layer of salt in this basin is about fifty metres thick. People tried their best to use the salt to build house...

  2. Quebec inventory of greenhouse gas emissions in 2008 and their evolution since 1990; Inventaire quebecois des emissions de gaz a effet de serre en 2008 et leur evolution depuis 1990

    Energy Technology Data Exchange (ETDEWEB)

    Leblond, V.; Paradis, J.; Bougie, R.; Goulet, M.; Leclerc, N.; Nolet, E.


    This document presented an inventory of greenhouse gas (GHG) emissions produced by human activity in Quebec between 1990 and 2008. In 2008, 82.7 Mt of carbon dioxide (CO{sub 2}) equivalent were released in Quebec, which represents a 1.2 percent reduction from 1990 levels. Quebec had the second lowest GHG emissions per capita in 2008 and was 1 of only 3 only provinces in Canada to have a reduction in GHG emissions since 1990. This document also presented data regarding GHG emissions released by sector, notably from industrial combustion such as the TransCanada Energy cogeneration facilities; industrial processes; residential, commercial and institutional buildings; agriculture; sanitary landfills; and electric power production. Quebec's reduction in GHG emissions can be attributed primarily to advances in energy efficiency technology that have been adopted by the industrial sector. In addition, some industrial combustion facilities have been closed and landfill facilities have begun to use systems to capture methane gas. In contrast, automobile traffic increased over the study period, and was responsible for an important increase in GHG emissions since 1990. 6 tabs., 4 figs.

  3. Breast and ovarian cancer screening of non-carriers from BRCA1/2 mutation-positive families: 2-year follow-up of cohorts from France and Quebec. (United States)

    Dorval, Michel; Noguès, Catherine; Berthet, Pascaline; Chiquette, Jocelyne; Gauthier-Villars, Marion; Lasset, Christine; Picard, Claude; Plante, Marie; Simard, Jacques; Julian-Reynier, Claire


    We described and compared breast and ovarian screening practices in the 2-year period following test result disclosure in female non-carriers from BRCA1/2 mutation-positive families living in two countries, France and Quebec, Canada, which provide universal health care. Four hundred and two (France n=293; Quebec n=109) unaffected female non-carriers from BRCA-proven mutation families provided information about the uptake of mammography, clinical breast examination, breast self-examination, and ovarian ultrasounds using self-administered questionnaires. The frequency of screening practices between study cohorts were compared using logistic regression. Annual mammography was conducted in 23 and 43% of French and Quebecer women participants cancer screening practices for female non-carriers from BRCA1/2 mutation-positive families in both France and Quebec exceeded those recommended for similarly aged women in the general population. Our findings highlight the need for clearcut recommendations on the follow-up of women from BRCA1/2 families who are not themselves carriers of a BRCA1/2 mutation.

  4. Canadian Mathematics Education Study Group = Groupe Canadien d'Etude en Didactique des Mathematiques. Proceedings of the Annual Meeting (24th, Montreal, Quebec, Canada, May 26-30, 2000). (United States)

    Simmt, Elaine, Ed.; Davis, Brent, Ed.; McLoughlin, John Grant, Ed.

    This document contains the proceedings of the annual meeting of the Canadian Mathematics Education Study Group (CMESG) held at the University of Quebec in Montreal, Canada, May 26-30, 2000. The proceedings consist of two plenary lectures, five working groups, four topic sessions, new Ph.D. reports, and panel discussions. Papers include: (1)…

  5. Proceedings of the 2008 Annual Meeting of the Canadian Mathematics Education Study Group = Actes de la Rencontre Annuelle 2008 du Groupe Canadien d'Etude en Didactique des Mathematiques (32nd, Sherbrooke, Quebec, Canada, May 23-27, 2008) (United States)

    Liljedahl, Peter, Ed.; Oesterle, Susan, Ed.; Berneche, Christian, Ed.


    This submission contains the Proceedings of the 2008 Annual Meeting of the Canadian Mathematics Education Study Group (CMESG), held at the Universite de Sherbrooke in Sherbrooke, Quebec. The CMESG is a group of mathematicians and mathematics educators who meet annually to discuss mathematics education issues at all levels of learning. The aims of…

  6. Mechanism and control of lake eutrophication

    Institute of Scientific and Technical Information of China (English)

    QIN Boqiang; YANG Liuyan; CHEN Feizhou; ZHU Guangwei; ZHANG Lu; CHEN Yiyu


    A review about lake naturally eutrophi- cating, the internal loading of nutrients from lake sediment as well as the mechanism of algal blooms and the control practices was made, especially the eutrophication problem of shallow lakes since sev- enty percent of fresh water lakes in China are shallow lakes. It was found that shallow lakes are apt toward eutrophication than deep lakes. Without any influ- ences of human activity, shallow lakes in the middle and lower reaches of Yangtze River are still easily eutrophicated, which may be owing to the effects of flood in this area. In shallow lakes, sediments are frequently disturbed by wind-wave and resuspended, which result in huge nutrients release to overlying water. This may be the major reason for higher in- ternal loading of nutrients in shallow lakes than in deep lakes. Algal bloom is an extreme response of lake ecosystem to the eutrophication. Appearance of algal blooms is related to physical condition of lakes, such as underwater radiation (or transparency), temperature, and hydrodynamic conditions, or related to geochemical conditions of lakes, like concentra- tions of nutrients and ratio of nitrogen to phosphorus, as well as the physiological advantage of cyanobac- teria such as vacuole for moving towards the radiant energy-rich zone and the mycosporine-like amino acids (MAAs) for resisting the harm of ultraviolet ra- diation. In shallow lakes, these advantages of cyanobacteria are favorable in the competition than in deep lakes. Also being the shallowness, it is more difficult to reduce nutrient loading and to control algae blooms in shallow lakes. For the control of eutrophi- cation, people should follow the sequence from pollution sources control, ecological restoration to catchment management. To control the internal nu- trient release, physical, chemical, biological tech- niques, and even bionic techniques could be selected. The idea of ecological restoration for a eutrophic lake is to shift the ecosystem

  7. Hydrology of Hunters Lake, Hernando County, Florida (United States)

    Henderson, S.E.


    The size and shape of Hunters Lake, Florida has been significantly altered by development of the surrounding Spring Hill residential community. The lake is the largest in Hernando County, enlarged by lakeshore excavation and connection to nearby ponds to an area of 360 acres at an average stage of 17.2 ft above sea level. Hunters Lake is naturally a closed lake, but development of Spring Hill has resulted in a surface water outflow from the lake in its southwest corner. Inflow to the lake could occur on the east side during extreme high-water periods. The karst terrain of the Hunters Lake area is internally drained through permeable soils, depressions, and sinkholes, and natural surface drainage is absent. The underlying Floridan aquifer system is unconfined except locally near coastal springs. Flow in the groundwater system is to the west regionally and to the southwest in the immediate area of Hunters Lake. Water level gradients in the groundwater system increase from 1.4 ft/mi east of the lake to about 8 ft/mi southwest of the lake. Hunters Lake is hydraulically connected to the groundwater system, receiving groundwater on the northeast side and losing water to the groundwater system on the southwest side. This close relationship with the groundwater system is demonstrated by graphical and numerical comparison of Hunters Lake stage with water levels in nearby groundwater sites. During 1965-84, the stage of Hunters Lake fluctuated between 12.48 and 20.7 ft above sea level. Because area lakes are all directly affected by groundwater levels, they also show a close relationship with water levels in Hunters Lake. Analysis of water quality data for Hunters Lake indicates that the water of the lake is a soft calcium bicarbonate type with ionic concentrations higher than in water from nearby shallow wells and lower than in water from the Upper Floridan aquifer. Samples collected in 1981-1983 indicate slightly higher levels of ionic concentration than in 1965

  8. Protecting the endangered lake salmon

    Energy Technology Data Exchange (ETDEWEB)

    Soimakallio, H.; Oesch, P. [ed.


    In addition to the Ringed Seal, the labyrinthine Saimaa lake system created after the Ice Age also trapped a species of salmon, whose entire life cycle became adapted to fresh water. In order to improve the living conditions of this lake salmon which - like the ringed seal - is today classified as an endangered species, an intensive research programme has been launched. The partners include the Finnish Game and Fisheries Research Institute, fishing and environmental authorities and - in collaboration with UPM-Kymmene Oy and Kuurnan Voima Oy - the IVO subsidiary Pamilo Oy

  9. Post Audit of Lake Michigan Lake Trout PCB Model Forecasts (United States)

    The Lake Michigan (LM) Mass Balance Study was conducted to measure and model polychlorinated biphenyls (PCBs) and other anthropogenic substances to gain a better understanding of the transport, fate, and effects of these substances within the system and to aid managers in the env...

  10. Detecting Magnetosomes in Freshwater Lakes and Lake Sediments (United States)

    Kodama, K. P.; Kim, B.; Kopp, B.; Chen, A. P.


    We will present a summary of the work done to date on detecting magnetosomes in the lake sediments and water column of Lake Ely, a small post-glacial lake in northeastern Pennsylvania. To establish that magnetosomes dominate the magnetic mineralogy of the Lake Ely sediments we sampled the water column every meter down to its maximum depth of 23 m and measured the dissolved oxygen, sulfide, and iron, as well as the ARM of the material filtered from the water. We examined the water samples for magnetotactic bacteria. These results established an increase in the ARM of the filtered material at the oxic-anoxic transition. They also showed that the ARM was carried by magnetosomes produced by magnetotactic bacteria living in the water column at depths from 15-19 m. TEM of magnetic separates collected from the lake sediments show that magnetosomes are transferred to the sediments from the water column and are a significant fraction of the magnetic minerals in the sediments. We used a variety of mineral magnetic techniques to magnetically characterize the magnetosomes in the lake sediments. The delta-delta ratio test of low temperature behavior at the Verwey transition (Moskowitz et al., 1993) gave values of 1.2 to 1.5, lower than the theoretically predicted level of 2 for magnetosomes, but a numeric unmixing technique could resolve higher delta-delta ratios in the dark organic-rich layers in the sediments where magnetosomes were more prevalent. ARM/SIRM ratios of 0.15 to 0.35 with Raf values (the crossover of an IRM acquisition curve versus its alternating field demagnetization curve) of 0.45 to 0.5 are consistent with the presence of magnetosomes in the sediments, the water column, and in a sediment trap located at the bottom of the lake. IRM and ARM acquisition modeling of samples collected from a 160 cm piston core revealed two components of magnetization with coercivities of about 25 mT and 65 mT that are identified as Egli's (2004) biogenic soft (BS) and biogenic

  11. Evaluation of offshore stocking of Lake Trout in Lake Ontario (United States)

    Lantry, B.F.; O'Gorman, R.; Strang, T.G.; Lantry, J.R.; Connerton, M.J.; Schanger, T.


    Restoration stocking of hatchery-reared lake trout Salvelinus namaycush has occurred in Lake Ontario since 1973. In U.S. waters, fish stocked through 1990 survived well and built a large adult population. Survival of yearlings stocked from shore declined during 1990–1995, and adult numbers fell during 1998–2005. Offshore stocking of lake trout was initiated in the late 1990s in response to its successful mitigation of predation losses to double-crested cormorants Phalacrocorax auritus and the results of earlier studies that suggested it would enhance survival in some cases. The current study was designed to test the relative effectiveness of three stocking methods at a time when poststocking survival for lake trout was quite low and losses due to fish predators was a suspected factor. The stocking methods tested during 2000–2002 included May offshore, May onshore, and June onshore. Visual observations during nearshore stockings and hydroacoustic observations of offshore stockings indicated that release methods were not a direct cause of fish mortality. Experimental stockings were replicated for 3 years at one site in the southwest and for 2 years at one site in the southeast. Offshore releases used a landing craft to transport hatchery trucks from 3 to 6 km offshore out to 55–60-m-deep water. For the southwest site, offshore stocking significantly enhanced poststocking survival. Among the three methods, survival ratios were 1.74 : 1.00 : 1.02 (May offshore : May onshore : June onshore). Although not statistically significant owing to the small samples, the trends were similar for the southeast site, with survival ratios of 1.67 : 1.00 : 0.72. Consistent trends across years and sites indicated that offshore stocking of yearling lake trout during 2000–2002 provided nearly a twofold enhancement in survival; however, this increase does not appear to be great enough to achieve the 12-fold enhancement necessary to return population abundance to restoration

  12. Inter-annual to inter-decadal streamflow variability in Quebec and Ontario in relation to dominant large-scale climate indices (United States)

    Nalley, D.; Adamowski, J.; Khalil, B.; Biswas, A.


    The impacts of large-scale climate oscillations on hydrological systems and their variability have been documented in different parts of the world. Since hydroclimatic data are known to exhibit non-stationary characteristics, spectral analyses such as wavelet transforms are very useful in extracting time-frequency information from such data. As Canadian studies, particularly those of regions east of the Prairies, using wavelet transform-based methods to draw links between relevant climate indices [e.g., the El Niño Southern Oscillation (ENSO), the North Atlantic Oscillation (NAO), and the Pacific Decadal Oscillation (PDO)] and streamflow variability are not common, this study aims to analyze such relationships for the southern regions of Quebec and Ontario. Monthly and annual streamflow data with a record length of 55 years were used to capture streamflow variability at intra-annual, inter-annual and inter-decadal scales. The continuous wavelet transform spectra of monthly streamflow data revealed consistent significant 6- and 12-month periodicities, which are likely associated with strong seasonality factors. Its annual counterparts showed four different significant periodicities: up to 4 years, 4-6 years, 6-8 years, and greater than 8 years - all of which occurred after the late 1960s/early 1970s. Wavelet coherence analyses show that the influence of ENSO and NAO at the inter-annual scale occurs at 2-6 year periodicities, and the influence of PDO occur at periodicities up to 8 years and exceeding 16 years. Correlations between these climate indices and streamflow were computed to determine the time delay of streamflow response to the influence of ENSO, NAO, and PDO. The lag times ranged from 6-48 months (for monthly data) and 1-4 years (for annual data). This research contributes to our understanding of streamflow variability over the southern parts of Quebec and Ontario, and the role of ENSO, NAO, and PDO phenomena on this variability. These relationships can

  13. Glacial lakes Buni and Jezerce: Albania

    Directory of Open Access Journals (Sweden)

    Milivojević Milovan


    Full Text Available The paper presents glacial lakes and glacial relief forms at the foothill of the peak Maja Jezerce in Mt. Prokletije in Albania, near the border with Montenegro. The group of lakes Buni and Jezerce, which consists of six lakes and which genetically belongs to glacial-erosional lakes, is analyzed. Lakes are situated at the cirque bottom, between the moraines and limestone ridges. Except presented morphometric characteristics of lake basins, data about cirque are given, as well as the reconstruction of the glacier which was formed here. Recent erosion processes are intensive in this area and have considerably changed post-Pleistocene morphology of the lake, as well as the cirque bottom.

  14. Beijing Star Lake Ecology Park

    Institute of Scientific and Technical Information of China (English)


    @@ Beijing Star Lake Ecology Park is a Five-star hotel which has developed multi-functions of restaurant, lodge, bath, landscape seeing, leisure,body exercise, recreation, Ecology agriculture,etc. Occupying an area of 500 mu, the park is an environmental friendly five-star hotel.

  15. The Lake Poets in Romanticism

    Institute of Scientific and Technical Information of China (English)



    Romanticism is an essential part in English literature.In this new trend,the group of poets,also called the Lake Poets,used their finest poems to show respect to nature and life,to advocate human instincts and emotions and to look forward to new world.

  16. Long Lake banding project, 1965 (United States)

    US Fish and Wildlife Service, Department of the Interior — This report summarizes the results of a banding project on Long Lake in 1965. The dates at the banding site were July 27th through August 8th. As in the past, the...

  17. Schistosomiasis in Lake Malawi villages

    DEFF Research Database (Denmark)

    Madsen, Henry; Bloch, Paul; Makaula, Peter


    Historically, open shorelines of Lake Malawi were free from schistosome, Schistosoma haematobium, transmission, but this changed in the mid-1980s, possibly as a result of over-fishing reducing density of molluscivore fishes. Very little information is available on schistosome infections among...

  18. Genetic diversity of lake whitefish in lakes Michigan and Huron: sampling, standardization, and research priorities (United States)

    Stott, Wendylee; VanDeHey, Justin A.; Sloss, Brian L.


    We combined data from two laboratories to increase the spatial extent of a genetic data set for lake whitefish Coregonus clupeaformis from lakes Huron and Michigan and saw that genetic diversity was greatest between lakes, but that there was also structuring within lakes. Low diversity among stocks may be a reflection of relatively recent colonization of the Great Lakes, but other factors such as recent population fluctuation and localized stresses such as lamprey predation or heavy exploitation may also have a homogenizing effect. Our data suggested that there is asymmetrical movement of lake whitefish between Lake Huron and Lake Michigan; more genotypes associated with Lake Michigan were observed in Lake Huron. Adding additional collections to the calibrated set will allow further examination of diversity in other Great Lakes, answer questions regarding movement among lakes, and estimate contributions of stocks to commercial yields. As the picture of genetic diversity and population structure of lake whitefish in the Great Lakes region emerges, we need to develop methods to combine data types to help identify important areas for biodiversity and thus conservation. Adding genetic data to existing models will increase the precision of predictions of the impacts of new stresses and changes in existing pressures on an ecologically and commercially important species.

  19. Paleo-environmental gateways in the eastern Canadian arctic - Recent isotope hydrology and diatom oxygen isotopes from Nettilling Lake, Baffin Island, Canada (United States)

    Chapligin, B.; Narancic, B.; Meyer, H.; Pienitz, R.


    Nettilling Lake is located on Baffin Island, Nunavut, Canada between the areas of past warming (Canadian High Arctic to the North) and climatic stability (Northern Quebec and Labrador region to the South). Despite being the largest lake in the Nunavut region with a postglacial marine to lacustrine transition history only a few paleo-environmental investigations were completed in this area. The oxygen isotope composition of diatoms (δ18Odiatom) can provide valuable insights into paleo-environmental conditions. Here, the recent (isotope) hydrology and hydrochemical data from the lake are presented to facilitate the interpretation of a δ18Odiatom record from an 82 cm sediment core (Ni-2B). The well-mixed lake (δ18Owater = -17.4‰) is influenced by a heavier (less negative) isotope composition (-18.80‰) from Amadjuak River draining Amadjuak Lake to the South and water of lighter (more negative) isotopic composition (-16.4‰) from the Isurtuq River originating from Penny Ice Cap in the North-East. From the δ18Owater and δ18Odiatom of the topmost sample of core Ni-2B a Δ18Osilica-water of 1000 ln α(silica-water) = 40.2‰ for sub-recent diatoms of Nettilling Lake was calculated matching the known water-silica fractionation for fossil sediments well and thereby showing the general applicability of this proxy for paleo-reconstructions in this region. Extremely large δ18Odiatom variations in the core of more than 13‰ are mainly induced by changes in the isotopic composition of the lake water due to a shift from glaciomarine (δ18Odiatom = +34.6‰) through brackish (+23.4 to +27.2‰) towards lacustrine (+21.5‰) conditions (transition zones glaciomarine to brackish at 69 cm/7300 yr cal. BP and brackish to lacustrine at 35 cm/6000 yr cal. BP) associated with a shift in the degree of salinity. Our study provides the first evidence that paleo-salinity can be reconstructed by δ18Odiatom. Additionally, for the lacustrine section it could be demonstrated that

  20. Contaminant Monitoring Strategy for Henrys Lake, Idaho

    Energy Technology Data Exchange (ETDEWEB)

    John S. Irving; R. P. Breckenridge


    Henrys Lake, located in southeastern Idaho, is a large, shallow lake (6,600 acres, {approx} 17.1 feet maximum depth) located at 6,472 feet elevation in Fremont Co., Idaho at the headwaters of the Henrys Fork of the Snake River. The upper watershed is comprised of high mountains of the Targhee National Forest and the lakeshore is surrounded by extensive flats and wetlands, which are mostly privately owned. The lake has been dammed since 1922, and the upper 12 feet of the lake waters are allocated for downriver use. Henrys Lake is a naturally productive lake supporting a nationally recognized ''Blue Ribbon'' trout fishery. There is concern that increasing housing development and cattle grazing may accelerate eutrophication and result in winter and early spring fish kills. There has not been a recent thorough assessment of lake water quality. However, the Department of Environmental Quality (DEQ) is currently conducting a study of water quality on Henrys Lake and tributary streams. Septic systems and lawn runoff from housing developments on the north, west, and southwest shores could potentially contribute to the nutrient enrichment of the lake. Many houses are on steep hillsides where runoff from lawns, driveways, etc. drain into wetland flats along the lake or directly into the lake. In addition, seepage from septic systems (drainfields) drain directly into the wetlands enter groundwater areas that seep into the lake. Cattle grazing along the lake margin, riparian areas, and uplands is likely accelerating erosion and nutrient enrichment. Also, cattle grazing along riparian areas likely adds to nutrient enrichment of the lake through subsurface flow and direct runoff. Stream bank and lakeshore erosion may also accelerate eutrophication by increasing the sedimentation of the lake. Approximately nine streams feed the lake (see map), but flows are often severely reduced or completely eliminated due to irrigation diversion. In addition, subsurface

  1. Lake volume monitoring from space (United States)

    Crétaux, Jean-Francois; Abarca Del Rio, Rodrigo; Berge-Nguyen, Muriel; Arsen, Adalbert; Drolon, Vanessa; Maisongrande, Philippe


    Lakes are integrator of environmental changes occurring at regional to global scale and present a high variety of behaviors on a variety of time scales (cyclic and secular) depending on the climate conditions and their morphology. In addition their crucial importance as water stocks and retaining, given the significant environment changes occurring worldwide at many anthropocentric levels, has increased the necessity of monitoring all its morphodynamics characteristics, say water level, surface (water contour) and volume. The satellite altimetry and satellite imagery together are now widely used for the calculation of lakes and reservoirs water storage changes worldwide. However strategies and algorithms to calculate these characteristics are not straightforward and need development of specific approaches. We intend to present a review of some of these methodologies by using the lakes over the Tibetan Plateau to illustrate some critical aspects and issues (technical and scientific) linked with the survey of climate changes impacts on surface waters from remote sensing data. Many authors have measured water variations using the short period of remote sensing measurements available, although time series are probably too short to lead to definitive conclusions to link these results directly with the framework of climate changes. Indeed, many processes beyond the observations are still uncertain, for example the influence of morphology of the lakes. The time response for a lake to reach new state of equilibrium is one of the key aspects often neglected in the current literature. Observations over long period of time, therein maintaining a constellation of comprehensive and complementary satellite missions with a continuity of services over decades, especially when ground gauges network is too limited is therefore a necessity. In addition, the design of future satellite missions with new instrumental concepts (e.g. SAR, SARin, Ka band altimetry, Ka interferometry) is

  2. [The implementation of the Quebec Mental Health Action Plan: hands-on experience at the Maisonneuve-Rosemont hospital in Montreal]. (United States)

    Bernazzani, Odette; Rondeau, Alain


    The Mental Health Action Plan maps out the reorganization of mental health services in the province of Quebec. Accordingly, this paper presents the transformation process of the mental health program at the Maisonneuve-Rosemont hospital in Montreal. The authors discuss, on the one hand, the challenges that were met and, on the other hand, the model of care and organisational choices that were adopted. This article is divided in three parts. The first part describes the two main guiding principles underlying the Mental Health Action Plan. The second part examines the context surrounding the arrival of the Action Plan at the Maisonneuve-Rosemont Hospital. The third part describes the hospital transformation process that evolved in relation with: 1- the new centralized access points for mental health services; 2- the support for first line (or primary care) services; 3- the second line services for the specialized treatment of complex mental health problems.

  3. Parents' and adolescents' willingness to be vaccinated against serogroup B meningococcal disease during a mass vaccination in Saguenay-Lac-St-Jean (Quebec). (United States)

    Dubé, Eve; Gagnon, Dominique; Hamel, Denis; Belley, Sylvie; Gagné, Hélène; Boulianne, Nicole; Landry, Monique; Bettinger, Julie A


    A mass vaccination campaign with the 4CMenB vaccine (Bexsero®; Novartis Pharmaceutical Canada Inc) was launched in a serogroup B endemic area in Quebec. A telephone survey was conducted to assess parental and adolescent opinions about the acceptability of the vaccine. Intent to receive the vaccine or vaccine receipt was reported by the majority of parents (93%) and adolescents (75%). Meningitis was perceived as being a dangerous disease by the majority of parents and adolescents. The majority of respondents also considered the 4CMenB vaccine to be safe and effective. The main reason for positive vaccination intention or behaviour was self-protection, while a negative attitude toward vaccination in general was the main reason mentioned by parents who did not intend to have their child vaccinated. Adolescents mainly reported lack of interest, time or information, and low perceived susceptibility and disease severity as the main reasons for not intending to be vaccinated or not being vaccinated.

  4. Religious and medical discourses at the core of the legitimization process of penal law. The management of homoerotic mores in Quebec (1892-1969

    Directory of Open Access Journals (Sweden)

    Patrice Corriveau


    Full Text Available This article describes the evolution of two dominant discourses (the medical and the religious that interfered with the system of penal law in its conceptualization and management of homoerotic mores in Quebec from the creation of the first Canadian Criminal Code in 1892 until the adoption of the Omnibus Bill in 1969. The analysis of interactions between these discursive formations and the system of penal law shows that even if the viewpoints of law and religion as well as law and « science » on the « homosexual phenomenon » are sometimes in opposition, they are not always mutually exclusive. On the contrary, they often reinforce each other.

  5. Communities of practice as a professional and organizational development strategy in local public health organizations in Quebec, Canada: an evaluation model. (United States)

    Richard, Lucie; Chiocchio, François; Essiembre, Hélène; Tremblay, Marie-Claude; Lamy, Geneviève; Champagne, François; Beaudet, Nicole


    Communities of practice (CoPs) are among the professional development strategies most widely used in such fields as management and education. Though the approach has elicited keen interest, knowledge pertaining to its conceptual underpinnings is still limited, thus hindering proper assessment of CoPs' effects and the processes generating the latter. To address this shortcoming, this paper presents a conceptual model that was developed to evaluate an initiative based on a CoP strategy: Health Promotion Laboratories are a professional development intervention that was implemented in local public health organizations in Montreal (Quebec, Canada). The model is based on latest theories on work-group effectiveness and organizational learning and can be usefully adopted by evaluators who are increasingly called upon to illuminate decision-making about CoPs. Ultimately, validation of this conceptual model will help advance knowledge and practice pertaining to CoPs as well as professional and organizational development strategies in public health.

  6. Cost-effectiveness of midwifery services vs. medical services in Quebec. LEquipe dEvaluation des Projets-Pilotes Sages-Femmes. (United States)

    Reinharz, D; Blais, R; Fraser, W D; Contandriopoulos, A P


    This study compared the cost-effectiveness of midwife services provided in birth centres operating as pilot projects with current hospital-based medical services in the province of Quebec. One thousand midwives' clients were matched with 1,000 physicians' clients on the basis of socio-demographic characteristics and obstetrical risk. Direct costs for the prenatal, intrapartum and postpartum periods were estimated. Effectiveness was assessed on the basis of three clinical indicators and four indices related to the individualization of care as assessed by women. Results show that the costs of midwife services were barely lower than or equal to those of physician services, but cost-effectiveness ratios were to the advantage of the midwife group, except for one clinical indicator (neonatal ventilation). Overall, this study provides rational support for the process of legalizing midwifery in the province.

  7. Lipdubs as a tool to conquer social influence. A study of four paradigmatic cases made in Quebec, USA, Catalonia and the Basque Country

    Directory of Open Access Journals (Sweden)

    Txema Ramírez-de-la-Piscina-Martínez


    Full Text Available This article summarizes the principal conclusions of an investigation carried out by the author into lipdub as an instrument used in order to get more social influence. The analyzed lipdubs are the following: “I gotta feeling-UQAM”, performed by students of Communication in Quebec, (in early 2012, it was the most viewed lipdub on the Internet; “The Grand Rapids” (this lipdub holds the record for hits per day on the web; “Lipddub Indepèndencia” (it held the world record for the number of participants – 5,771 and, finally, “Lipdub Kukutza”, the most viewed lipdub in the Basque Country. This work claims that, at this time, a good lipdub can be a crucial tool for social movements in order to overcome the invisibility with which the mass-media often punishes any expression which challenges mainstream tendencies.

  8. The importance of knowledge, skills, and attitude attributes for veterinarians in clinical and non-clinical fields of practice: a survey of licensed veterinarians in Quebec, Canada. (United States)

    Doucet, Michèle Y; Vrins, André


    To improve content validity and the pertinence of outcome assessment tools used for the undergraduate Doctor of Veterinary Medicine program at the University of Montreal's Faculté de médecine vétérinaire, a survey of members of the Quebec veterinary association was conducted. This survey aimed to determine the importance of a list of 71 attributes-categorized as knowledge, general skills, specific skills, and attitudes-for clinical and non-clinical types of professional activities. The results indicated that all basic knowledge components, general skills, and attitudes were equally important for all types of veterinary professional activities, while the importance of specific skills was significantly different for clinical practice and non-clinical fields. It was therefore proposed that outcomes assessment surveys of stakeholders, such as alumni and employers, be analyzed separately for each type of career option.

  9. [The implementation of integrated networks of mental health services in Quebec: context of introduction, state of implementation and the views of general practitioners]. (United States)

    Fleury, Marie-Josée


    This paper presents the emerging context of integrated service networks (ISN), clarifies the concept of ISN, and highlights some of the key factors in the successful implementation of ISNs. The Quebec healthcare reform illustrates the current state of development of integrated care. The main targets of the reform are the consolidation of primary care and the development of collaborative models of mental health care (or shared care). Since they are very complex to operate (insofar as they require major system changes), ISNs are not widely developed. General practitioners are at the heart of the current reforms since they have a key role to play in the successful implementation of integrated care models, including ISN models.


    Directory of Open Access Journals (Sweden)

    Lisa Baillargeon


    Full Text Available The business model and strategic position of Quebec's rural foundries at the beginning of the 20th century is virtually unknown. Inferences have been made based on pictorial and oral data sources. This data reveals that successful rural foundries were, in essence, confined to producing and selling agricultural tools to local farmers on an as-needed basis, because large urban foundries were already mass-producing domestic and industrial objects. In contrast, use of detailed accounting records and advertising publications of three rural foundries over the 1900 to 1914 period provides a clearer picture of the production and of the clientele of those rural foundries. Analysis of these sources suggests that the strategic business model of rural foundries was much more elaborate than the existing literature posits. Rural owner-managers of the early 20th century were sophisticated strategists, marketers, and operators.

  11. Spatiotemporal Modeling of Ozone Levels in Quebec (Canada): A Comparison of Kriging, Land-Use Regression (LUR), and Combined Bayesian Maximum Entropy–LUR Approaches (United States)

    Adam-Poupart, Ariane; Brand, Allan; Fournier, Michel; Jerrett, Michael


    Background: Ambient air ozone (O3) is a pulmonary irritant that has been associated with respiratory health effects including increased lung inflammation and permeability, airway hyperreactivity, respiratory symptoms, and decreased lung function. Estimation of O3 exposure is a complex task because the pollutant exhibits complex spatiotemporal patterns. To refine the quality of exposure estimation, various spatiotemporal methods have been developed worldwide. Objectives: We sought to compare the accuracy of three spatiotemporal models to predict summer ground-level O3 in Quebec, Canada. Methods: We developed a land-use mixed-effects regression (LUR) model based on readily available data (air quality and meteorological monitoring data, road networks information, latitude), a Bayesian maximum entropy (BME) model incorporating both O3 monitoring station data and the land-use mixed model outputs (BME-LUR), and a kriging method model based only on available O3 monitoring station data (BME kriging). We performed leave-one-station-out cross-validation and visually assessed the predictive capability of each model by examining the mean temporal and spatial distributions of the average estimated errors. Results: The BME-LUR was the best predictive model (R2 = 0.653) with the lowest root mean-square error (RMSE ;7.06 ppb), followed by the LUR model (R2 = 0.466, RMSE = 8.747) and the BME kriging model (R2 = 0.414, RMSE = 9.164). Conclusions: Our findings suggest that errors of estimation in the interpolation of O3 concentrations with BME can be greatly reduced by incorporating outputs from a LUR model developed with readily available data. Citation: Adam-Poupart A, Brand A, Fournier M, Jerrett M, Smargiassi A. 2014. Spatiotemporal modeling of ozone levels in Quebec (Canada): a comparison of kriging, land-use regression (LUR), and combined Bayesian maximum entropy–LUR approaches. Environ Health Perspect 122:970–976; PMID:24879650

  12. Towards the Application of a River Management Approach Encompassing most Natural Process Drivers : Lessons Learned from Freedom Space for Rivers in Quebec (Canada) (United States)

    Biron, P.; Buffin-Belanger, T. K.; Massé, S.


    The consensus around the need for a shift in river management approaches to include more natural processes is steadily growing amongst scientists, practitioners and governmental agencies. Not only is this a sound way to increase resilience of fluvial systems and adapt to climate change, but it will likely result in improved water quality and better aquatic habitat. This paper presents the freedom space for rivers approach which we have developed recently in Quebec (Canada) to combine natural processes related to mobility, flooding and riparian wetland connectivity into a single index. The approach was applied to 3 contrasted rivers (de la Roche, Yamaska Sud-Est and Matane) to produce two main levels of freedom space, operating at two time scales: "short" (in geomorphic terms, i.e. cost-benefit analysis revealed economic benefits over a 50-year period when taking into account ecosystem services. There is now a growing interest within ministries and watershed agencies to implement such a management approach, but also strong inertia and resistance to change, particularly in agricultural watersheds. Our observations reveal that for such a shift in paradigm to operate, hydrogeomorphogical concepts must be better understood by those in charge of managing rivers, which is currently not the case in Quebec. The role of integrating scientific knowledge in the implementation of a freedom space for rivers management scheme will be discussed based on case studies in 3 watersheds: rivière du Nord, Coaticook and Mitis/Neigette. The original approach was applied only to the main branches, however the second phase of the project is also aiming to determine whether the impact of leaving more space for natural rivers to operate would be more beneficial in headwater tributaries than in higher-order reaches.

  13. Calculating Lake Morphology in the Colville River Delta, Alaska (United States)

    McGraw, M.; Walker, H. J.


    The morphology and surface area of a lake can be determined using simple mathematical formulas. These formulas can be plugged into a Geographic Information System (GIS) and used to calculate the circularity, smoothness, compactness and orientation of a lake or pond in remotely sensed imagery. The calculated output can then be used to differentiate circular lakes from elongated lakes, lakes with smooth shorelines from those with complex shorelines, and lake orientation; such information can then be used to classify and quantify different types of lakes in complex environments such as river deltas. The Colville River delta is located on the North Slope of Arctic Alaska. Previous studies have classified the delta's 230,000+ lakes into five types: 1. thermokarst (thaw) lakes, 2. oriented lakes, 3. perched lakes, 4 channel lakes and 5. ice-wedge polygon ponds. This study uses 2004 aerial photography and 2011 satellite imagery to quantify the different types of lake in the delta.

  14. 40 CFR 35.1605-3 - Publicly owned freshwater lake. (United States)


    ... 40 Protection of Environment 1 2010-07-01 2010-07-01 false Publicly owned freshwater lake. 35.1605... Owned Freshwater Lakes § 35.1605-3 Publicly owned freshwater lake. A freshwater lake that offers public... maintaining the public access and recreational facilities of this lake or other publicly owned...

  15. Seasonal thermal ecology of adult walleye (Sander vitreus) in Lake Huron and Lake Erie. (United States)

    Peat, Tyler B; Hayden, Todd A; Gutowsky, Lee F G; Vandergoot, Christopher S; Fielder, David G; Madenjian, Charles P; Murchie, Karen J; Dettmers, John M; Krueger, Charles C; Cooke, Steven J


    The purpose of this study was to characterize thermal patterns and generate occupancy models for adult walleye from lakes Erie and Huron with internally implanted biologgers coupled with a telemetry study to assess the effects of sex, fish size, diel periods, and lake. Sex, size, and diel periods had no effect on thermal occupancy of adult walleye in either lake. Thermal occupancy differed between lakes and seasons. Walleye from Lake Erie generally experienced higher temperatures throughout the spring and summer months than did walleye in Lake Huron, due to limnological differences between the lakes. Tagged walleye that remained in Saginaw Bay, Lake Huron (i.e., adjacent to the release location), as opposed to those migrating to the main basin of Lake Huron, experienced higher temperatures, and thus accumulated more thermal units (the amount of temperature units amassed over time) throughout the year. Walleye that migrated toward the southern end of Lake Huron occupied higher temperatures than those that moved toward the north. Consequently, walleye that emigrated from Saginaw Bay experienced thermal environments that were more favorable for growth as they spent more time within their thermal optimas than those that remained in Saginaw Bay. Results presented in this paper provide information on the thermal experience of wild fish in a large lake, and could be used to refine sex- and lake-specific bioenergetics models of walleye in the Great Lakes to enable the testing of ecological hypotheses.

  16. Seasonal thermal ecology of adult walleye (Sander vitreus) in Lake Huron and Lake Erie (United States)

    Peat, Tyler B; Hayden, Todd A.; Gutowsky, Lee F G; Vandergoot, Christopher S.; Fielder, David G.; Madenjian, Charles P.; Murchie, Karen J; Dettmers, John M.; Krueger, Charles C.; Cooke, Steven J.


    The purpose of this study was to characterize thermal patterns and generate occupancy models for adult walleye from lakes Erie and Huron with internally implanted biologgers coupled with a telemetry study to assess the effects of sex, fish size, diel periods, and lake. Sex, size, and diel periods had no effect on thermal occupancy of adult walleye in either lake. Thermal occupancy differed between lakes and seasons. Walleye from Lake Erie generally experienced higher temperatures throughout the spring and summer months than did walleye in Lake Huron, due to limnological differences between the lakes. Tagged walleye that remained in Saginaw Bay, Lake Huron (i.e., adjacent to the release location), as opposed to those migrating to the main basin of Lake Huron, experienced higher temperatures, and thus accumulated more thermal units (the amount of temperature units amassed over time) throughout the year. Walleye that migrated toward the southern end of Lake Huron occupied higher temperatures than those that moved toward the north. Consequently, walleye that emigrated from Saginaw Bay experienced thermal environments that were more favorable for growth as they spent more time within their thermal optimas than those that remained in Saginaw Bay. Results presented in this paper provide information on the thermal experience of wild fish in a large lake, and could be used to refine sex- and lake-specific bioenergetics models of walleye in the Great Lakes to enable the testing of ecological hypotheses.

  17. Make electricity a complete and efficient carrier for energy accessibility - Hydro-Quebec strategic R & D; Faire de l'electricite un vecteur complet et efficace pour l'accessibilite de l'energie - La R&D strategique a Hydro-Quebec

    Energy Technology Data Exchange (ETDEWEB)

    Naggar, Raouf


    In an energy context dominated by the evolution of needs, the availability of resources and the respect of the environment, electricity will play a role increasingly important in order to make accessible most of the energy resources that are harnessed in real time and not already existing as a portable and storable form. However, to become a complete and efficient accessibility carrier, it will still have to rise to many more challenges in development, exploitation, maintenance and commercial exchanges. The Hydro Quebec research institute (IREQ) has begun several strategic R&D projects to raise to these challenges. [French] Dans un contexte energetique domine par l'evolution des besoins, la disponibilite des ressources et le respect de l'environnement, l'electricite jouera un role de plus en plus important pour rendre accessibles la plupart des ressources energetiques qui sont captees en temps reel et qui ne sont pas deja sous une forme stockable et transportable. Cependant, pour devenir un vecteur d'accessibilite complet et efficace, elle devra encore relever plusieurs defis au niveau du developpement, de l'exploitation, de la maintenance et des echanges commerciaux. L'institut de recherche d'Hydro-Quebec (IREQ) a entrepris plusieurs projets de R&D strategique visant a relever ces defis.

  18. Lake Morphometry for NHD Lakes in Pacific Northwest Region 17 HUC (United States)

    U.S. Environmental Protection Agency — Lake morphometry metrics are known to influence productivity in lakes and are important for building various types of ecological and environmental models of lentic...

  19. Great Lakes Restoration Initiative Great Lakes Mussel Watch(2009-2014) (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Following the inception of the Great Lakes Restoration Initiative (GLRI) to address the significant environmental issues plaguing the Great Lakes region, the...

  20. Lake Morphometry for NHD Lakes in Lower Mississippi Region 8 HUC (United States)

    U.S. Environmental Protection Agency — Lake morphometry metrics are known to influence productivity in lakes and are important for building various types of ecological and environmental models of lentic...

  1. Lake Morphometry for NHD Lakes in Upper Colorado Region 14 HUC (United States)

    U.S. Environmental Protection Agency — Lake morphometry metrics are known to influence productivity in lakes and are important for building various types of ecological and environmental models of lentic...

  2. Lake Morphometry for NHD Lakes in Upper Mississippi Region 7 HUC (United States)

    U.S. Environmental Protection Agency — Lake morphometry metrics are known to influence productivity in lakes and are important for building various types of ecological and environmental models of lentic...

  3. Lake Morphometry for NHD Lakes in Rio Grande Region 13 HUC (United States)

    U.S. Environmental Protection Agency — Lake morphometry metrics are known to influence productivity in lakes and are important for building various types of ecological and environmental models of lentic...

  4. Lake Morphometry for NHD Lakes in Souris Red Rainy Region 9 HUC (United States)

    U.S. Environmental Protection Agency — Lake morphometry metrics are known to influence productivity in lakes and are important for building various types of ecological and environmental models of lentic...

  5. Environmental Assessment: Submerged Aquatic Plant Management of Banks Lake, Banks Lake NWR, Lakeland, Georgia (United States)

    US Fish and Wildlife Service, Department of the Interior — This Environmental Assessment is an analysis of five alternatives developed to address themanagement of the submerged aquatic plants of Banks Lake on Banks Lake...

  6. 1997-1998 lake water quality assessment for Upper Des Lacs Lake, North Dakota (United States)

    US Fish and Wildlife Service, Department of the Interior — This is a summary of the data collected on Upper Des Lacs Lake as part of the State's Lake Water Quality Assessment Project. The Project is designed to characterize...

  7. Lake Morphometry for NHD Lakes in Lower Colorado Region 15 HUC (United States)

    U.S. Environmental Protection Agency — Lake morphometry metrics are known to influence productivity in lakes and are important for building various types of ecological and environmental models of lentic...

  8. Lake Morphometry for NHD Lakes in Great Basin Region 16 HUC (United States)

    U.S. Environmental Protection Agency — Lake morphometry metrics are known to influence productivity in lakes and are important for building various types of ecological and environmental models of lentic...

  9. Lake Morphometry for NHD Lakes in North East Region 1 HUC (United States)

    U.S. Environmental Protection Agency — Lake morphometry metrics are known to influence productivity in lakes and are important for building various types of ecological and environmental models of lentic...

  10. Ardoch Lake, Kellys Slough, Devils Lake National Wildlife Range : Narrative Report : Calendar Year 1964 (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for Ardoch Lake, Kellys Slough, Devils Lake National Wildlife Refuge outlines Refuge accomplishments during the 1964 calendar year. The...

  11. Lake Morphometry for NHD Lakes in the Upper Portion of the Missouri Region 10 HUC (United States)

    U.S. Environmental Protection Agency — Lake morphometry metrics are known to influence productivity in lakes and are important for building various types of ecological and environmental models of lentic...

  12. Why study lakes? An overview of USGS lake studies in Wisconsin (United States)

    Garn, Herbert S.; Elder, J.F.; Robertson, D.M.


    Wisconsin’s 15,000 lakes are prominent features in its landscape and an important public resource. In the northern part of the State, the recent glaciation (ending about 10,000 years ago) created one of the densest clusters of lakes found anywhere in the world, containing lakes that occupy depressions in the glacial moraines and outwash deposits (fig. 1). This Northern Lakes and Forests Ecoregion contains more than 80 percent of the State’s lakes (Wisconsin Department of Natural Resources, 2001). South of this ecoregion, there are fewer lakes, but they still are common. Usually situated in agricultural or urban land- scapes, lakes in southern Wisconsin generally have higher levels of nutrients and alkalinity, and higher biological productivity than their northern counterparts. For most lakes in Wisconsin, phosphorus is the nutrient that limits algal growth (Lillie and Mason, 1983).

  13. Record of glacial Lake Missoula floods in glacial Lake Columbia, Washington (United States)

    Hanson, Michelle A.; Clague, John J.


    During the last glaciation (marine oxygen isotope stage 2), outburst floods from glacial Lake Missoula deposited diagnostic sediments within glacial Lake Columbia. Two dominant outburst flood lithofacies are present within glacial Lake Columbia deposits: a flood expansion bar facies and a finer-grained hyperpycnite facies. We conclude that the flood sediments have a glacial Lake Missoula source because: (1) current indicators indicate westward flow through the lake, and upvalley flow followed by downvalley flow in tributary valleys; (2) no flood sediments are found north of a certain point; (3) there is a dominance of Belt-Purcell Supergroup clasts in a flood expansion bar; and (4) some of the finer-grained beds have a pink colour, reflective of glacial Lake Missoula lake-bottom sediments. A new radiocarbon age of 13,400 ± 100 14C BP on plant detritus found below 37 flood beds helps constrain the timing of outburst flooding from glacial Lake Missoula.

  14. Floodplain Lakes: Evolution and Response (United States)

    Hausmann, Sonja; Hall, Roland; Gell, Peter


    PAGES International Floodplain Lakes Workshop; Fayetteville, Arkansas, 16-19 September 2010 ; Human alteration of the major rivers and floodplains of the world is a global concern because they sustain aquatic ecosystems and supply food and energy to society. When in flood stage, the influence of a river extends across the floodplain and can revitalize productive wetlands. The condition of many rivers has declined worldwide, but the degree of degradation is hard to assess due to natural variability of flow and uncertainty of baseline status. Evidence of changes over decades to millennia in river and wetland conditions, however, can be quantified from physical, chemical, and biological information archived in the accumulated sediments of floodplain lakes.


    Elliott, James E.; Avery, Dale W.


    A mineral survey of the Dolus Lakes Roadless Area in southwestern Montana, was conducted. Much of the roadless area has probable and substantiated potential for resources of gold, silver, molybdenum, and tungsten. The nature of the geologic terrain indicates that there is little promise for the occurrence of coal, oil, gas, or geothermal resources. Detailed geologic and geochemical studies are suggested to delineate exploration targets that could be tested by drilling.

  16. Lake Borgne Surge Barrier Study (United States)


    Savant , and Darla C. McVan September 2010 Approved for public release; distribution is unlimited. ERDC/CHL TR-10-10 September 2010 Lake...Borgne Surge Barrier Study S. Keith Martin, Gaurav Savant , and Darla C. McVan Coastal and Hydraulics Laboratory U.S. Army Engineer Research and...conducted by Keith Martin, Dr. Gaurav Savant , and Darla C. McVan. This work was conducted at the Coastal and Hydraulics Laboratory (CHL) of the

  17. Storm Warnings on Lake Balaton, (United States)


    magnitude of this effect. Consequently, the employees of the Storm Warning Service decided in the course of the summer 1962, to set up a cup -type... anemometer on a passenger ship regularly passing between Si6fok and Balatonfired, and to take wind measurements along this route across the Lake in a...along this route. During the measurements, the reading of the anemometer was taken at intervals and noted together with the time of reading. Since the

  18. A contribution to the knowledge of yeasts in Olsztyn lakes

    Directory of Open Access Journals (Sweden)

    Maria Dynowska


    Full Text Available Yeasts species have been analysed from Skanda and Kartowo Lakes. Their presence reflects poor sanitary stale of the lakes, with Skanda Lake particulary affected by the process of eutrophication.

  19. Fisheries Management Plan: Rice Lake National Wildlife Refuge (United States)

    US Fish and Wildlife Service, Department of the Interior — Rice Lake National Wildlife Refuge provides a sport fishery on three of the four refuge lakes. Fishing is restricted to designated areas. Rice Lake, though not open...

  20. Recreational Fishery Management Plan for Lake Andes National Wildlife Refuge (United States)

    US Fish and Wildlife Service, Department of the Interior — Current condition of lake Andes (1996) and highlights potential problems and recommendations for improving the lake as a hatchery. Lake Andes was a much larger body...

  1. Great Lakes Commercial Fishing Catches 1929-2013 (United States)

    U.S. Geological Survey, Department of the Interior — Since 1971 the Great Lakes Science Center (GLSC), formerly known as the National Fishery Center-Great Lakes (National Biological Service), the Great Lakes Fishery...

  2. Refuge Land Acquisition Biological Reconnaissance Report Lake Umbagog 1972 (United States)

    US Fish and Wildlife Service, Department of the Interior — This report describes a 15,600-acre area called Lake Umbagog. The focus of the report is on the lake shore, marsh, swamp, and uplands, predominately on the lake's...

  3. Proceedings of the wind energy industry conference : develop, innovate, export : held in conjunction with Quebec's first wind energy industry gala; Comptes rendus du colloque sur l'industrie eolienne : developper, innover, exporter : tenue en conjonction avec le premier gala quebecois de l'industrie eolienne

    Energy Technology Data Exchange (ETDEWEB)



    This conference was dedicated to the wind energy industry and business opportunities in Quebec, the rest of Canada and abroad. It was held in conjunction with Quebec's first wind energy industry gala which highlighted the organizations and individuals that have made outstanding contributions to the wind power sector in Quebec over the past three years. The entire conference focused on current and future requests for proposals in Quebec, innovation, and exports. Some fifteen reputed speakers shared their knowledge and experience regarding technological development and technical support available in Quebec. It was intended to clarify current and future issues affecting the wind power industry and to build key relations with leading wind energy players. The sessions of the conference were entitled: the wind energy industry in Quebec and Canada; issues surrounding requests for proposals; the players involved in the request for proposals; visual impacts of wind farms; data transmission during wind farm construction; innovating to move ahead of the crowd; innovation in practice; exporting as a means of development; and, exports in practice. A tour of the Baie-des-Sable wind farm was also provided. The conference featured 24 presentations, of which 2 have been catalogued separately for inclusion in this database. refs., tabs., figs.

  4. Mechanisms of Methane Release From Lake Sediments


    Shiba, Jacob


    Methane is a powerful greenhouse gas that can be produced in bottom sediments of lakes and reservoirs and released through ebullition and other properties. Many studies have quantified ebullition rates, however, the detailed mechanisms remain incompletely understood. This study was undertaken to better understand, through in situ and laboratory measurements, the mechanisms of gas ebullition from lake sediment. Four sites on Lake Elsinore, CA with different properties were evaluated through th...

  5. Pulicat Lake: A Fragile Ecosystem Under Threat (United States)

    Saraswathy, R.; Pandian, Pitchai Kasinatha


    The Pulicat Lake is the second largest brackish water lake after Chilika Lake in India. The average area of the water spread is 461 sq km. During the monsoon Pulicat Lake receives freshwater through three major rivers, namely, the Swarnamukhi, the Kalangi and the Arani. The Pulicat lagoon system, which is a storehouse of rich biological resources, is under great threat because of the anthropogenic influences. The Pulicat Lake ecosystem is degraded by siltation, bar mouth dynamics, shell mining and processing and population pressure due to the resettlement of villagers from Sriharikota Island. It has been determined that the extent of the lake, including its water spread area, is decreasing. Therefore, it is essential to assess the land use / land cover changes taking place in and around Pulicat Lake using remote sensing and GIS. Studies on its sediment characteristics are also vital. The grain size content reveals that most of the sediments contain clay and silt in enormous amounts. This lake has been the prime source of a livelihood through fishing for a large section of the population living in the surrounding villages. It is the most important refuge for water birds in south India. The fishing community who lives in and around Pulicat Lake follows the Padu system for fishing in the lake. In this study, apart from studies on configuration changes and sediment analysis, a study of the flora and fauna of the lake and the socio-economic conditions of the local community were also carried out. Finally, mitigation measures for the sustainable protection of the lake's ecosystem were identified.

  6. Potential flood volume of Himalayan glacial lakes

    Directory of Open Access Journals (Sweden)

    K. Fujita


    Full Text Available Glacial lakes are potentially dangerous sources of glacial lake outburst floods (GLOFs, and represent a serious natural hazard in Himalayan countries. Despite the development of various indices aimed at determining the outburst probability, an objective evaluation of the thousands of Himalayan glacial lakes has yet to be completed. In this study we propose a single index, based on the depression angle from the lakeshore, which allows the lakes to be assessed using remotely sensed digital elevation models (DEMs. We test our approach on five lakes in Nepal, Bhutan, and Tibet using images taken by the declassified Hexagon KH-9 satellite before these lakes experienced an outburst flood. All five lakes had a steep lakefront area (SLA, on which a depression angle was steeper than our proposed threshold of 10° before the GLOF event, but the SLA was no longer evident after the events. We further calculated the potential flood volume (PFV; i.e., the maximum volume of floodwater that could be released if the lake surface was lowered sufficiently to eradicate the SLA. This approach guarantees repeatability to assess the possibility of GLOF hazards because it requires no particular expertise to carry out, though the PFV does not quantify the GLOF risk. We calculated PFVs for more than 2000 Himalayan glacial lakes using visible band images and DEMs of ASTER data. The PFV distribution follows a power-law function. We found that 794 lakes did not have an SLA, and consequently had a PFV of zero, while we also identified 49 lakes with PFVs of over 10 million m3, which is a comparable volume to that of recorded major GLOFs. This PFV approach allows us to preliminarily identify and prioritize those Himalayan glacial lakes that require further detailed investigation on GLOF hazards and risk.

  7. Pacific salmonines in the Great Lakes Basin (United States)

    Claramunt, Randall M.; Madenjian, Charles P.; Clapp, David; Taylor, William W.; Lynch, Abigail J.; Leonard, Nancy J.


    Pacific salmon (genus Oncorhynchus) are a valuable resource, both within their native range in the North Pacific rim and in the Great Lakes basin. Understanding their value from a biological and economic perspective in the Great Lakes, however, requires an understanding of changes in the ecosystem and of management actions that have been taken to promote system stability, integrity, and sustainable fisheries. Pacific salmonine introductions to the Great Lakes are comprised mainly of Chinook salmon, coho salmon, and steelhead and have accounted for 421, 177, and 247 million fish, respectively, stocked during 1966-2007. Stocking of Pacific salmonines has been effective in substantially reducing exotic prey fish abundances in several of the Great Lakes (e.g., lakes Michigan, Huron, and Ontario). The goal of our evaluation was to highlight differences in management strategies and perspectives across the basin, and to evaluate policies for Pacific salmonine management in the Great Lakes. Currently, a potential conflict exists between Pacific salmonine management and native fish rehabilitation goals because of the desire to sustain recreational fisheries and to develop self-sustaining populations of stocked Pacific salmonines in the Great Lakes. We provide evidence that suggests Pacific salmonines have not only become naturalized to the food webs of the Great Lakes, but that their populations (specifically Chinook salmon) may be fluctuating in concert with specific prey (i.e., alewives) whose populations are changing relative to environmental conditions and ecosystem disturbances. Remaining questions, however, are whether or not “natural” fluctuations in predator and prey provide enough “stability” in the Great Lakes food webs, and even more importantly, would a choice by managers to attempt to reduce the severity of predator-prey oscillations be antagonistic to native fish restoration efforts. We argue that, on each of the Great Lakes, managers are pursuing

  8. The Great Lakes Regional Stroke Network Experience


    Bray Hedworth, Angela; Smith, Cassidy S


    Stroke is a leading cause of disability and the third leading cause of death among adults in the United States and in the Great Lakes states of Illinois, Indiana, Michigan, Minnesota, Ohio, and Wisconsin. The Great Lakes Regional Stroke Network was created to enhance collaboration and coordination among the Great Lakes states to reduce the burden of stroke and stroke-related disparities associated with race, sex, and geography. Three priorities were identified for reducing the effects of stro...

  9. Thiamine concentrations in lake whitefish eggs from the upper Great Lakes are related to maternal diet (United States)

    Riley, S.C.; Rinchard, J.; Ebener, M.P.; Tillitt, D.E.; Munkittrick, K.R.; Parrott, J.L.; Allen, J.D.


    Thiamine deficiency is responsible for reproductive impairment in several species of salmonines in the Great lakes, and is thought to be caused by the consumption of prey containing thiaminase, a thiamine-degrading enzyme. Because thiaminase levels are extremely high in dreissenid mussels, fish that prey on them may be susceptible to thiamine deficiency. We determined thiamine concentrations in lake whitefish Coregonus clupeaformis eggs from the upper Laurentian Great Lakes to assess the potential for thiamine deficiency and to determine if thiamine concentrations in lake whitefish eggs were related to maternal diet. Mean thiamine concentrations in lake whitefish eggs were highest in Lake Huron, intermediate in Lake Superior, and lowest in Lake Michigan. Some fish had thiamine concentrations below putative thresholds for lethal and sublethal effects in salmonines, suggesting that some larval lake whitefish may currently be at risk of at least sublethal effects of low thiamine concentrations, although thiamine thresholds are unknown for lake whitefish. Egg thiamine concentrations in lake whitefish eggs were statistically significantly related to isotopic carbon signatures, suggesting that egg thiamine levels were related to maternal diet, but low egg thiamine concentrations did not appear to be associated with a diet of dreissenids. Egg thiamine concentrations were not statistically significantly related to multifunction oxidase induction, suggesting that lower egg thiamine concentrations in lake whitefish were not related to contaminant exposure.

  10. 33 CFR 162.138 - Connecting waters from Lake Huron to Lake Erie; speed rules. (United States)


    ... speed not greater than— (i) 12 statute miles per hour (10.4 knots) between Fort Gratiot Light and St... to Lake Erie; speed rules. 162.138 Section 162.138 Navigation and Navigable Waters COAST GUARD... REGULATIONS § 162.138 Connecting waters from Lake Huron to Lake Erie; speed rules. (a) Maximum speed limit...

  11. Lake Michigan lake trout PCB model forecast post audit (oral presentation) (United States)

    Scenario forecasts for total PCBs in Lake Michigan (LM) lake trout were conducted using the linked LM2-Toxics and LM Food Chain models, supported by a suite of additional LM models. Efforts were conducted under the Lake Michigan Mass Balance Study and the post audit represents an...

  12. 78 FR 24228 - Lake Andes National Wildlife Refuge Complex, Lake Andes, SD; Final Comprehensive Conservation Plan (United States)


    ... Fish and Wildlife Service Lake Andes National Wildlife Refuge Complex, Lake Andes, SD; Final Comprehensive Conservation Plan AGENCY: Fish and Wildlife Service, Interior. ACTION: Notice of availability... conservation plan and finding of no significant impact (FONSI) for the Lake Andes National Wildlife...

  13. 78 FR 17097 - Safety Zone; Lake Havasu Triathlon; Lake Havasu City, AZ (United States)


    ... SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA00 Safety Zone; Lake Havasu Triathlon; Lake Havasu City, AZ... Havasu Triathlon. This temporary safety zone is necessary to provide safety for the swimmers, crew... Triathlon will consist of 600 participants. The waterside swim course consists of 1500 meters in Lake...

  14. Anisotropy of magnetic susceptibility in the giant Lac Tio hemo-ilmenite ore body (Quebec Province, Canada): source and geological implications (United States)

    Bolle, O.; Diot, H.; Bascou, J.; Charlier, B.


    The Lac Tio hemo-ilmenite ore body is a magmatic ilmenite deposit that crops out in the 1.06 Ga Lac Allard anorthosite which is part of the Havre-Saint-Pierre anorthosite suite, one of many AMCG (Anorthosite-Mangerite-Charnockite-(rapakivi) Granite) suites from the Grenville province of North America. It is the world's largest hard-rock ilmenite deposit, with reserves still estimated at ca. 138 Mt after 60 years of mining exploitation (Charlier et al., 2010). The magnetic properties of the Lac Tio ore body were first studied in the 50s and 60s (e.g. Hargraves, 1959; Carmichael, 1961), and have recently been reinvestigated by McEnroe et al. (2007). All these works focused on the high and stable natural remanent magnetization of the hemo-ilmenite ore (up to 120 A/m) that was shown to reside in the exsolution intergrowths of hematite and ilmenite, following the theory of lamellar magnetism (McEnroe et al., 2007). The present study investigates the anisotropy of magnetic susceptibility (AMS; e.g. Borradaile and Jackson, 2004) of 46 samples from the Lac Tio ore body and its anorthosite wall rocks. The bulk magnetic susceptibility (Km) in the ore, which is essentially made up of hemo-ilmenite (commonly >75 wt.%) and plagioclase, ranges from 5.3 to 115.9 x 10-3 SI. Not surprisingly, samples with high Km values (>7 x 10-3 SI) usually contain magnetite, either as small grains or as plates replacing some hematite exsolutions. Km ranges from 0.35 to 3.8 x 10-3 SI in the host anorthosite, as well as in plagicolase-rich layers found within the hemo-ilmenite ore. Such relatively low values reflect minor to trace amounts of Fe-Ti oxides (ilmeno-hematite, hemo-ilmenite, magnetite) and pyroxenes. The hemo-ilmenite ore displays a shape-preferred orientation of the hematite lamellae that exsolved parallel to the basal (0001) plane of the ilmenite host grains. Thus, the ore has a lattice-preferred orientation (LPO) for the hemo-ilmenite grains. Electron backscatter diffraction

  15. Audubon National Wildlife Refuge, Lake Nettie National Wildlife Refuge, McLean National Wildlife Refuge, Camp Lake Easement Refuge, Hiddenwood Easement Refuge, Lake Otis Easement Refuge, Lost Lake Easement Refuge, Sheyenne Lake Easement Refuge : Narrative report : 1971 (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for Audubon National Wildlife Refuge (including Lake Nettie National Wildlife Refuge, McLean National Wildlife Refuge, Camp Lake...

  16. Audubon National Wildlife Refuge, Lake Nettie National Wildlife Refuge, McLean National Wildlife Refuge, Camp Lake Easement Refuge, Hiddenwood Easement Refuge, Lake Otis Easement Refuge, Lost Lake Easement Refuge, Sheyenne Lake Easement Refuge: Narrative report: 1972 (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for Audubon National Wildlife Refuge (including Lake Nettie National Wildlife Refuge, McLean National Wildlife Refuge, Camp Lake...

  17. Residence time and physical processes in lakes

    Directory of Open Access Journals (Sweden)

    Nicoletta SALA


    Full Text Available The residence time of a lake is highly dependent on internal physical processes in the water mass conditioning its hydrodynamics; early attempts to evaluate this physical parameter emphasize the complexity of the problem, which depends on very different natural phenomena with widespread synergies. The aim of this study is to analyse the agents involved in these processes and arrive at a more realistic definition of water residence time which takes account of these agents, and how they influence internal hydrodynamics. With particular reference to temperate lakes, the following characteristics are analysed: 1 the set of the lake's caloric components which, along with summer heating, determine the stabilizing effect of the surface layers, and the consequent thermal stratification, as well as the winter destabilizing effect; 2 the wind force, which transfers part of its momentum to the water mass, generating a complex of movements (turbulence, waves, currents with the production of active kinetic energy; 3 the water flowing into the lake from the tributaries, and flowing out through the outflow, from the standpoint of hydrology and of the kinetic effect generated by the introduction of these water masses into the lake. These factors were studied in the context of the general geographical properties of the lake basin and the watershed (latitude, longitude, morphology, also taking account of the local and regional climatic situation. Also analysed is the impact of ongoing climatic change on the renewal of the lake water, which is currently changing the equilibrium between lake and atmosphere, river and lake, and relationships

  18. The pollution of East Lake,Wuhan

    Institute of Scientific and Technical Information of China (English)

    Yi xiGu; Mialy Rakotondravah


    @@ 1.The history East Lake was an open lake:she connected Yangtze River through Qlngshan Channel.The water level was controlled by Yangtze River:rising in summer,and decreasing in winter.After building Wufeng Gate in 1957,changing the Qingshan harbor as water supply channel,the East Lake is completely isolated from Yangtze River and then East Lake changes from a natural lake to a closed lake by human control.The watar level is related with rainfall,evaporation,surface runoff,pumping off by the factories along the lake,agricultural and domestic sewage water.East Lake is a typical shallow lake in the northeast of Wuhan city.When the water level is 20.5m,the area is 28km2, volume is 62 million m3,and catchment area is 186 km2.The deepest position:4.75m,average depth is 2.21m2,And also it is a multi-function:water-sport entertainments.drinking water source,fishing,industrial water and famous scene.

  19. Long Lake National Wildlife Refuge and Long Lake Wetland Management District: Annual narrative report: Calendar year 1992 (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for Long Lake NWR, Long Lake WMD, Slade NWR, Florence Lake NWR, and the easement refuges outlines Refuge accomplishments during the 1992...

  20. Long Lake National Wildlife Refuge and Long Lake Wetland Management District: Annual narrative report: Calendar year 1995 (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for Long Lake NWR, Long Lake WMD, Slade NWR, Florence Lake NWR, and the easement refuges outlines Refuge accomplishments during the 1995...

  1. Holocene Lake Records on Kamchatka (United States)

    Diekmann, Bernhard; Biskaborn, Boris; Chapligin, Bernhard; Dirksen, Oleg; Dirksen, Veronika; Hoff, Ulrike; Meyer, Hanno; Nazarova, Larisa


    The availibility of terrestrial records of Holocene palaeoenvironmental changes in eastern Siberia still is quite limited, compared to other regions on the northern hemisphere. In particular, the Kamchatka Peninsula as an important climate-sensitive region is very underrepresented. Situated at the border of northeastern Eurasia, the maritime-influenced terrestrial setting of Kamchatka offers the potential to pinpoint connections of environmental changes between the periglacial and highly continental landmasses of eastern Siberia and the sub-Arctic Pacific Ocean and Sea of Okhotsk. The study region lies at the eastern end-loop of the global thermohaline ocean conveyor belt and is strongly affected by atmospheric teleconnections. Volcanic, tectonic, and glacial processes overprint palaeoenvironmental changes in addition to primary climate forcing. In order to widen our understanding of plaeoclimate dynamics on Kamchatka, sediment cores from different lake systems and peat sections were recovered and analysed by a multi-proxy approach, using sedimentological and geochemical data as well as fossil bioindicators, such as diatoms, pollen, and chironomids. Chronostratigraphy of the studied records was achieved through radiocarbon dating and tephrostratigraphy. Sediment cores with complete Holocene sedimentary sequences were retrieved from Lake Sokoch, an up to six metre deep lake of proglacial origin, situated at the treeline in the Ganalsky Ridge of southern central Kamchatka (53°15,13'N, 157°45.49' E, 495 m a.s.l.). Lacustrine sediment records of mid- to late Holocene age were also recovered from the up to 30 m deep Two-Yurts Lake, which occupies a former proglacial basin at the eastern flank of the Central Kamchatka Mountain Chain, the Sredinny Ridge (56°49.6'N, 160°06.9'E, 275 m a.s.l.). In addition to sediment coring in the open and deep Two-Yurts Lake, sediment records were also recovered from peat sections and small isolated forest lakes to compare

  2. The decreasing level of Toshka Lakes seen from space

    CERN Document Server

    Sparavigna, Amelia Carolina


    Toshka Lakes are lakes recently formed in the Sahara Desert of Egypt, by the water of the Nile, conveyed from the Nasser Lake through a canal in the Toshka Depression. From space, astronauts noticed the growing of a first lake, the easternmost one, in 1998. Then additional lakes grew in succession due west, the westernmost one between 2000 and 2001. In fact, sources of precious information on Toshka Lakes are the pictures takes by the crews of space missions and the satellite imagery. They show that, from 2006, the lakes started shrinking. A set of recent images displays that the surface of the easternmost lake is strongly reduced.

  3. Planning Interventions for Lake Conservation: A Case of Shahpura Lake, Bhopal, India (United States)

    Munoth, Navneet; Nagaich, Anugrah Anilkumar


    With due increment in the development process of India, the problems related to environment are under constant increment and its contamination has now became a great threat for the rich ecology of the country. Particularly, the problems regarding the water quality are now becoming more acute and complicated due to increasing urbanization, industrialization, siltation, agricultural run-off and discharge of untreated sewage water. The city Bhopal in India having named as the city of lakes, is also experiencing similar issues. The famous characteristic lakes of Bhopal are under great environmental stress due to pollution from various sources. The Shahpura lake is one such lake, situated well within the city. A number of wards and colonies surrounding the lake boundary discharge their sewage and silage into the existing drainage network of the area, which ultimately finds its way into the lake through open drains. The main source of contamination in the lake is sewage fed drains, which are dumped into the lake during the summers. Besides this, other activities like bathing, cloth washing, cattle bathing and religious activities like idol immersion etc. also paves the way for high concentration of harmful chemicals in the lake. This work mainly discusses the existing situation and causes of water pollution in the Shahpura lake of Bhopal. It also brings into light the constitutional safeguards related to Lake Conservation in India and reviews their practical implications. In the end, it focuses on recommending the lake conservation strategies for the case of Shahpura lake; and suggests measures that could be adopted elsewhere to prevent the issue of lake pollution from various sources, emphasizing the importance of lakes.

  4. Spatial distribution of seepage at a flow-through lake: Lake Hampen, Western Denmark

    DEFF Research Database (Denmark)

    Kidmose, Jacob Baarstrøm; Engesgaard, Peter Knudegaard; Nilsson, Bertel;


    The spatial distribution of seepage at a flow-through lake in western Denmark was investigated at multiple scales with integrated use of a seepage meter, lake–groundwater gradients, stable isotope fractionation (d18O), chlorofl uorocarbon (CFC) apparent ages, land-based and off -shore geophysical...... that corroborates the interpretation of lake water recharging off shore and moving down gradient. Inclusion of lake bed heterogeneity in the model improved the comparison of simulated and observed discharge to the lake. The apparent age of the discharging groundwater to the lake was determined by CFCs, resulting...

  5. Catalog of crater lakes from Costa Rica (United States)

    Ramirez, C. J.; Mora-Amador, R.; González, G.


    Costa Rica has a diversity of volcanic crater lakes that can be classified into two groups: hot and cold lakes. The country contains at least 5% of the world's hot lakes. Costa Rica has 2 hot hyperacidic lakes, both of them on active volcanoes, the Rincón de la Vieja (38.0°C, pH = 0 - 1) and the Poás Laguna Caliente (36.1°C - 56°C, pH = 0.55 - 0.74), nowadays the Poás hot lake is the most active crater lake in the world, with more than 200 eruptions only on 2010. One of the most studied cold crater lakes is Irazú (13°C, pH = 3.5), that used to contain bubbling and clear areas of upwelling involving CO2 liberation and subaqueous fumaroles with temperatures up to 50°C, but since 2005 the lake presents an important descend until April 2010 when it disappeared. On February 9, 2003, Irazú's lake underwent a drastic change of color, from clear green to mustard with reddish loops, similar to the color of the waters of Lake Nyos after the gas burst of August 1986. Other studied cold lakes include Botos, Chato, and Tenorio, all at the summit of Quaternary volcanoes as well as Barva and Danta, located in recent pyroclastic cones. Some cold lakes are located in Holocene maar-type explosion craters, among them are Congo, Bosque Alegre, Hule, and Río Cuarto. These last two have undergone repeated rapid reddish color changes over the last 10 years, in association with fish kills and the liberation of apparently sulfurous scents. On March 2010, University of Costa Rica was the host of the 7th Workshop on Volcanic Lakes, part of the Commission of Volcanic Lakes of the IAVCEI, 51 participants from 14 countries attended the workshop; they presented 27 talks and 17 posters, also they visited and sample 4 of the lakes mentioned above (Botos, Irazú, Río Cuarto and Hule). Level of Study: 1: few or no data, 2: regular, 3: acceptable

  6. Evaluation of a lake whitefish bioenergetics model (United States)

    Madenjian, Charles P.; O'Connor, Daniel V.; Pothoven, Steven A.; Schneeberger, Philip J.; Rediske, Richard R.; O'Keefe, James P.; Bergstedt, Roger A.; Argyle, Ray L.; Brandt, Stephen B.


    We evaluated the Wisconsin bioenergetics model for lake whitefish Coregonus clupeaformis in the laboratory and in the field. For the laboratory evaluation, lake whitefish were fed rainbow smelt Osmerus mordax in four laboratory tanks during a 133-d experiment. Based on a comparison of bioenergetics model predictions of lake whitefish food consumption and growth with observed consumption and growth, we concluded that the bioenergetics model furnished significantly biased estimates of both food consumption and growth. On average, the model overestimated consumption by 61% and underestimated growth by 16%. The source of the bias was probably an overestimation of the respiration rate. We therefore adjusted the respiration component of the bioenergetics model to obtain a good fit of the model to the observed consumption and growth in our laboratory tanks. Based on the adjusted model, predictions of food consumption over the 133-d period fell within 5% of observed consumption in three of the four tanks and within 9% of observed consumption in the remaining tank. We used polychlorinated biphenyls (PCBs) as a tracer to evaluate model performance in the field. Based on our laboratory experiment, the efficiency with which lake whitefish retained PCBs from their food (I?) was estimated at 0.45. We applied the bioenergetics model to Lake Michigan lake whitefish and then used PCB determinations of both lake whitefish and their prey from Lake Michigan to estimate p in the field. Application of the original model to Lake Michigan lake whitefish yielded a field estimate of 0.28, implying that the original formulation of the model overestimated consumption in Lake Michigan by 61%. Application of the bioenergetics model with the adjusted respiration component resulted in a field I? estimate of 0.56, implying that this revised model underestimated consumption by 20%.

  7. Pulicat Lake: A Fragile Ecosystem Under Threat

    Directory of Open Access Journals (Sweden)

    Saraswathy R.


    Full Text Available The Pulicat Lake is the second largest brackish water lake after Chilika Lake in India. The average area of the water spread is 461 sq km. During the monsoon Pulicat Lake receives freshwater through three major rivers, namely, the Swarnamukhi, the Kalangi and the Arani. The Pulicat lagoon system, which is a storehouse of rich biological resources, is under great threat because of the anthropogenic influences. The Pulicat Lake ecosystem is degraded by siltation, bar mouth dynamics, shell mining and processing and population pressure due to the resettlement of villagers from Sriharikota Island. It has been determined that the extent of the lake, including its water spread area, is decreasing. Therefore, it is essential to assess the land use / land cover changes taking place in and around Pulicat Lake using remote sensing and GIS. Studies on its sediment characteristics are also vital. The grain size content reveals that most of the sediments contain clay and silt in enormous amounts. This lake has been the prime source of a livelihood through fishing for a large section of the population living in the surrounding villages. It is the most important refuge for water birds in south India. The fishing community who lives in and around Pulicat Lake follows the Padu system for fishing in the lake. In this study, apart from studies on configuration changes and sediment analysis, a study of the flora and fauna of the lake and the socio-economic conditions of the local community were also carried out. Finally, mitigation measures for the sustainable protection of the lake’s ecosystem were identified.

  8. Anaerobic Psychrophiles from Lake Zub and Lake Untersee, Antarctica (United States)

    Townsend, Alisa; Pikuta, Elena V.; Guisler, Melissa; Stahl, Sarah; Hoover, Richard B.


    The study of samples from Antarctica 2008 and 2009 expeditions organized and successfully conducted by Richard Hoover led to the isolation of diverse anaerobic strains with psychrotolerant and psychrophilic physiology. Due to the fact that Lake Untersee has never been subject to microbiological study, this work with the samples has significant and pioneering impact to the knowledge about the biology of this unique ecosystem. Also, the astrobiological significance for the study of these ecosystems is based on new findings of ice covered water systems on other bodies of our solar system. Anaerobic psychrotolerant strain LZ-22 was isolated from a frozen sample of green moss with soils around the rhizosphere collected near Lake Zub in Antarctica. Morphology of strain LZ-22 was observed to be motile, rod shaped and spore-forming cells with sizes 1 x 5-10 micron. This new isolate is a mesophile with the maximum temperature of growth at 40C. Strain LZ-22 is able to live on media without NaCl and in media with up to 7% (w/v) NaCl. It is catalase negative and grows only on sugars with the best growth rate being on lactose. The strain is a neutrophile and grows between pH 5 and 9.0 with the optimum at 7.8. Another two strains UL7-96mG and LU-96m7P were isolated from deep water samples of Lake Untersee. Proteolytic strain LU-96m7P had a truly psychrophilic nature and refused to grow at room temperature. Sugarlytic strain UL7-96mG was found to be psychrotolerant, but its rate of growth at 3C was very high compared with other mesophiles. Two homoacetogenic psychrophilic strains A7AC-96m and AC-DS7 were isolated and purified from samples of Lake Untersee; both of them are able to grow chemolithotrophically on H2+CO2. In the presence of lactate, these strains are able to grow only at 0-18C, and growth at 22C was observed only with yeast extract stimulation. In this paper, physiological and morphological characteristics of novel psychrophilic and psychrotolerant isolates from

  9. Anaerobic psychrophiles from Lake Zub and Lake Untersee, Antarctica (United States)

    Townsend, Alisa; Pikuta, Elena V.; Guisler, Melissa; Stahl, Sarah; Hoover, Richard B.


    The study of samples from Antarctica 2008 and 2009 expeditions organized and successfully conducted by Richard Hoover led to the isolation of diverse anaerobic strains with psychrotolerant and psychrophilic physiology. Due to the fact that Lake Untersee has never been subject to microbiological study, this work with the samples has significant and pioneering impact to the knowledge about the biology of this unique ecosystem. Also, the astrobiological significance for the study of these ecosystems is based on new findings of ice covered water systems on other bodies of our solar system. Anaerobic psychrotolerant strain LZ-22 was isolated from a frozen sample of green moss with soils around the rhizosphere collected near Lake Zub in Antarctica. Morphology of strain LZ-22 was observed to be motile, rod shaped and spore-forming cells with sizes 1 x 5-10 μm. This new isolate is a mesophile with the maximum temperature of growth at 40°C. Strain LZ-22 is able to live on media without NaCl and in media with up to 7 % (w/v) NaCl. It is catalase negative and grows only on sugars with the best growth rate being on lactose. The strain is a neutrophile and grows between pH 5 and 9.0 with the optimum at 7.8. Another two strains UL7-96mG and LU-96m7P were isolated from deep water samples of Lake Untersee. Proteolytic strain LU-96m7P had a truly psychrophilic nature and refused to grow at room temperature. Sugarlytic strain UL7-96mG was found to be psychrotolerant, but its rate of growth at 3°C was very high compared with other mesophiles. Two homoacetogenic psychrophilic strains A7AC-96m and AC-DS7 were isolated and purified from samples of Lake Untersee; both of them are able to grow chemolithotrophically on H2+CO2. In the presence of lactate, these strains are able to grow only at 0-18 °C, and growth at 22 °C was observed only with yeast extract stimulation. In this paper, physiological and morphological characteristics of novel psychrophilic and psychrotolerant isolates

  10. Hazards of volcanic lakes: analysis of Lakes Quilotoa and Cuicocha, Ecuador

    Directory of Open Access Journals (Sweden)

    G. Gunkel


    Full Text Available Volcanic lakes within calderas should be viewed as high-risk systems, and an intensive lake monitoring must be carried out to evaluate the hazard of potential limnic or phreatic-magmatic eruptions. In Ecuador, two caldera lakesLakes Quilotoa and Cuicocha, located in the high Andean region >3000 a.s.l. – have been the focus of these investigations. Both volcanoes are geologically young or historically active, and have formed large and deep calderas with lakes of 2 to 3 km in diameter, and 248 and 148 m in depth, respectively. In both lakes, visible gas emissions of CO2 occur, and an accumulation of CO2 in the deep water body must be taken into account.

    Investigations were carried out to evaluate the hazards of these volcanic lakes, and in Lake Cuicocha intensive monitoring was carried out for the evaluation of possible renewed volcanic activities. At Lake Quilotoa, a limnic eruption and diffuse CO2 degassing at the lake surface are to be expected, while at Lake Cuicocha, an increased risk of a phreatic-magmatic eruption exists.

  11. Lake morphometry and wind exposure may shape the plankton community structure in acidic mining lakes. (United States)

    Weithoff, Guntram; Moser, Michael; Kamjunke, Norbert; Gaedke, Ursula; Weisse, Thomas


    Acidic mining lakes (pH web in such lakes. The plankton community structure of mining lakes of different morphometry and mixing type but similar chemical characteristics (Lake 130, Germany and Lake Langau, Austria) was investigated. The focus was laid on the species composition, the trophic relationship between the phago-mixotrophic flagellate Ochromonas sp. and bacteria and the formation of a deep chlorophyll maximum along a vertical pH-gradient. The shallow wind-exposed Lake 130 exhibited a higher species richness than Lake Langau. This increase in species richness was made up mainly by mero-planktic species, suggesting a strong benthic/littoral - pelagic coupling. Based on the field data from both lakes, a nonlinear, negative relation between bacteria and Ochromonas biomass was found, suggesting that at an Ochromonas biomass below 50 μg C L(-1), the grazing pressure on bacteria is low and with increasing Ochromonas biomass bacteria decline. Furthermore, in Lake Langau, a prominent deep chlorophyll maximum was found with chlorophyll concentrations ca. 50 times higher than in the epilimnion which was build up by the euglenophyte Lepocinclis sp. We conclude that lake morphometry, and specific abiotic characteristics such as mixing behaviour influence the community structure in these mining lakes.

  12. 加拿大魁北克省矿业投资环境%Mining investment environment of Quebec province,Canada

    Institute of Scientific and Technical Information of China (English)

    孙春强; 赵仕玲; 付水兴; 薛茜茜; 李仁鹏


    Quebec is one of the most important provinces of Canada,which is rich in mineral resources, and the mining has become a pillar industry for economy.This paper outlines the mining overview and mining authorities,and introduces mining titles setting in detail,including different mining rights, corresponding terms and applications.Also,it summarizes main federal and provincial taxes and the rates, which covers mining tax,value-added tax and corporation income tax,etc.and focuses on mineral strategies and tax preferential policies for attracting mining investments.Finally,it analyzes the risks that mining investment possibly faces social risk,policy risk and cost risk in Quebec province,and puts forward some advice for Chinese “going out”mining companies.%魁北克省是加拿大的重要省份之一,矿产资源十分丰富,矿业已成为其支柱产业。本文概述了魁北克省的矿业简况和最新的矿业主管部门,详细介绍了包括勘探许可证、请求权、采矿租约等矿业权类型及其有效期和获取方式在内的矿业权的设置情况,总结了加拿大联邦和魁北克省对矿业公司征收的权利金、公司所得税和增值税等主要税费种类和税率,还重点介绍了该省为鼓励矿业开发而制定的战略举措和税费优惠政策,最后分析了未来投资该省可能存在社会、政策和成本等方面的风险,并提出相应的建议,以对我国有意赴该省进行矿业投资的矿业公司提供参考。

  13. Bone mineral density measurement and osteoporosis treatment after a fragility fracture in older adults: regional variation and determinants of use in Quebec

    Directory of Open Access Journals (Sweden)

    Grégoire Jean-Pierre


    Full Text Available Abstract Background Osteoporosis (OP is a skeletal disorder characterized by reduced bone strength and predisposition to increased risk of fracture, with consequent increased risk of morbidity and mortality. It is therefore an important public health problem. International and Canadian associations have issued clinical guidelines for the diagnosis and treatment of OP. In this study, we identified potential predictors of bone mineral density (BMD testing and OP treatment, which include place of residence. Methods Our study was a retrospective population-based cohort study using data from the Quebec Health Insurance Board. The studied population consisted of all individuals 65 years and older for whom a physician claimed a consultation for a low velocity vertebral, hip, wrist, or humerus fracture in 1999 and 2000. Individuals were considered to have undergone BMD testing if there was a claim for such a procedure within two years following a fracture. They were considered to have received an OP treatment if there was at least one claim to Quebec's health insurance plan (RAMQ for OP treatment within one year following a fracture. We performed descriptive analyses and logistic regressions by gender. Predictors included age, site of fracture, social status, comorbidity index, prior BMD testing, prior OP treatment, long-term glucocorticoid use, and physical distance to BMD device. Results The cohort, 77% of which was female, consisted of 25,852 individuals with fragility fractures. BMD testing and OP treatment rates were low and gender dependent (BMD: men 4.6%; women 13.1%; OP treatment: men 9.9%; women 29.7%. There was an obvious regional variation, particularly in BMD testing, ranging from 0 to 16%. Logistic regressions demonstrate that individuals living in long term care facilities received less BMD testing. Patients who had suffered from vertebral fractures, or who had received prior OP treatment or BMD testing, regardless of gender, subsequently

  14. Local, Short-term Effects of Forest Harvesting on Breeding Waterfowl and Common Loon in Forest-Dominated Landscapes of Quebec

    Directory of Open Access Journals (Sweden)

    Louis-Vincent Lemelin


    Full Text Available Northern forests are major breeding habitats for several waterfowl and other waterbird species. In Quebec, as in many other areas within the boreal region, clear-cut logging is an important human activity, and it is likely to affect ground- and cavity-nesting species differently. We used Black Duck Joint Venture/Canadian Wildlife Service aerial survey data, together with Quebec digital forest maps, to investigate local, i.e., within 2 km of clear-cut areas, short-term (~ 4 yr effects of forest harvesting on waterfowl and Common Loon. Our predictions were that clear-cut logging would not affect ground nesters, but would negatively affect pair settling patterns in cavity nesters through nesting habitat disturbance. Our study spanned a 540,000-km² territory in which we considered over 30,000 ha of clear-cut areas that were dispersed into 42 different locations. We controlled for interannual variation in population size by comparing the pre- and post-harvest percentages of potentially hospitable nesting cover disturbed by timber harvesting within a 1-km radius of indicated breeding pairs. Our results suggest that timber harvesting positively influenced local populations of Canada Goose and American Green-winged Teal. No other ground-nesting species showed a significant response. For the cavity-nesting guild and species, we detected no local, short-term effect of clear-cutting. This result was unexpected because many previous studies of nest-box provisioning reported increased breeding pair densities, indicating that availability of natural holes may limit cavity-nesting duck populations. Moreover, because cavity-nesting ducks are considered among the most vulnerable bird species to forest management, our results are consistent with the hypothesis that boreal bird populations exhibit some resilience to disturbance. This conclusion follows from a study in landscapes where forests were mostly first-growth. It is not evident that it will remain valid

  15. The association between farming activities, precipitation, and the risk of acute gastrointestinal illness in rural municipalities of Quebec, Canada: a cross-sectional study

    Directory of Open Access Journals (Sweden)

    Gosselin Pierre


    Full Text Available Abstract Background Increasing livestock density and animal manure spreading, along with climate factors such as heavy rainfall, may increase the risk of acute gastrointestinal illness (AGI. In this study we evaluated the association between farming activities, precipitation and AGI. Methods A cross-sectional telephone survey of randomly selected residents (n = 7006 of 54 rural municipalities in Quebec, Canada, was conducted between April 2007 and April 2008. AGI symptoms and several risk factors were investigated using a phone questionnaire. We calculated the monthly prevalence of AGI, and used multivariate logistic regression, adjusting for several demographic and risk factors, to evaluate the associations between AGI and both intensive farming activities and cumulative weekly precipitation. Cumulative precipitation over each week, from the first to sixth week prior to the onset of AGI, was analyzed to account for both the delayed effect of precipitation on AGI, and the incubation period of causal pathogens. Cumulative precipitation was treated as a four-category variable: high (≥90th percentile, moderate (50th to th percentile, low (10th to th percentile, and very low (th percentile precipitation. Results The overall monthly prevalence of AGI was 5.6% (95% CI 5.0%-6.1%, peaking in winter and spring, and in children 0-4 years old. Living in a territory with intensive farming was negatively associated with AGI: adjusted odds ratio (OR = 0.70 (95% CI 0.51-0.96. Compared to low precipitation periods, high precipitation periods in the fall (September, October, November increased the risk of AGI three weeks later (OR = 2.20; 95% CI 1.09-4.44 while very low precipitation periods in the summer (June, July, August increased the risk of AGI four weeks later (OR = 2.19; 95% CI 1.02-4.71. Further analysis supports the role of water source on the risk of AGI. Conclusions AGI poses a significant burden in Quebec rural municipalities with a peak in winter

  16. Evaluation des retombees economiques des projets energetiques au Quebec : Analyse couts-avantages de la mini-centrale hydroelectrique de Val-Jalbert (United States)

    Ossoro, Marcel Thierry

    Evaluer les retombees economiques d'un projet, cela consiste a evaluer le benefice du projet du point de vue de la collectivite. C'est le processus d'analyse, de mesure et d'appreciation de l'impact du projet, sur l'economie locale, regionale ou nationale. Il permet de prendre une decision optimale sur la faisabilite de l'investissement compte tenu de ses incidences sur l'ensemble des agents economiques. L'incoherence des approches et outils dans l'evaluation peut biaiser le calcul de l'impact net du projet, et par consequent, biaiser les termes de la hierarchisation des priorites en matiere d'investissement. Dans le cas des projets sensibles, necessitant de lourds investissements et beaucoup mediatises, comme cela est le cas des projets energetiques ; le biais peut s'averer desastreux et aboutir a une situation chaotique. La presente recherche porte sur l'evaluation des retombees economiques des projets energetiques au Quebec ; la pertinence et la coherence des outils et methodes d'evaluation. Elle est edifiee par une etude de cas. L'etude porte sur l'evaluation du projet de la mini-centrale hydroelectrique de Val Jalbert par la methode de l'analyse couts-avantages. Nous utilisons la methode des prix de reference selon l'approche de l'ONUDI. L'etude revele que le projet de la mini-centrale hydroelectrique de Val Jalbert repond positivement aux deux objectifs : l'efficience---maximisation de la consommation, et l'equite sociale---maximisation de la justice sociale. Il est donc considere, du point de vue de l'ONUDI, comme etant economiquement (ou socialement) rentable. L'analyse couts-avantages est un puissant evaluateur d'impact. Elle evalue le projet en l'integrant dans un cadre coherent d'analyses economiques, qui repose non seulement sur des valeurs nationales mais egalement, qui prend en compte les couts et avantages directs, indirects, internes et externes ; ce qui fait de l'outil, l'evaluateur le plus complet. A travers l'etude, nous montrons comment l

  17. Endometriosis-associated ovarian cancer: A ten-year cohort study of women living in the Estrie Region of Quebec, Canada

    Directory of Open Access Journals (Sweden)

    Aris Aziz


    Full Text Available Abstract Objectives Endometriosis has been believed to increase the risk of developing ovarian cancer, but recent data supporting this hypothesis are lacking. The aim of this study was to verify whether the incidence of endometriosis, ovarian cancer and the both increased during the last 10 years among women living in the Estrie region of Quebec. Methods We collected data of women diagnosed with endometriosis, ovarian cancer or both, between 1997 and 2006, from a population living in the Estrie region of Quebec. We performed this retrospective cross-sectional study from the CIRESSS (Centre Informatisé de Recherche Évaluative en Services et Soins de Santé system, the database of the CHUS (Centre Hospitalier Universitaire of Sherbrooke, Sherbrooke, Canada. Results Among the 2854 identified patients, 2521 had endometriosis, 292 patients had ovarian cancer and 41 patients had both ovarian cancer and endometriosis. We showed a constant increase in the number of ovarian cancer (OC between 1997 and 2006 (r2 = 0.557, P = 0.013, which is not the case for endometriosis (ENDO or endometriosis-associated ovarian cancer (EAOC. The mean age ± SD was 40.0 ± 9.9 and 53.9 ± 11.4 for patients having ENDO and OC, respectively. Mean age of women with EAOC was 48.3 ± 10.8, suggesting an early onset of ovarian cancer in women having endometriosis of about 5.5 years average, P = 0.003. Women with ENDO were at increased risk for developing OC (Rate Ratio [RR] = 1.6; 95% Confidence Interval [CI] = 1.12-2.09. Pathological analyses showed the predominance of endometrioid type (24.4% and clear-cell type (21.9% types in EAOC compared to OC, P = 0.0070 and 0.0029, respectively. However, the serous type is the most widespread in OC (44.5% in comparison to EAOC (19.51%, P = 0.0023. Conclusion Our findings highlight that the number of cases of ovarian cancer is constantly increasing in the last ten years and that endometriosis represents a serious risk factor which

  18. Lake Erie phosphorus loading and Cladophora updates (United States)

    The presentation will focus on updates or progress being made on each Phosphorus Loadings and Cladophora for Lake Erie. The format will give a brief summary of data, findings, and results that were used by the Great Lakes Water Quality Agreement (GLWQA) Annex 4 Nutrients Modeli...

  19. Viral ecology of a shallow eutrophic lake

    NARCIS (Netherlands)

    Tijdens, M.


    This thesis aims to give an insight into the ecology of the viral community in a shallow eutrophic lake. To achieve this, the population dynamics, diversity and control of the viral community in Lake Loosdrecht were studied, as well as the impact of the viral community on plankton mortality and comm

  20. Cryptanalysis of the LAKE Hash Family

    DEFF Research Database (Denmark)

    Biryukov, Alex; Gauravaram, Praveen; Guo, Jian


    We analyse the security of the cryptographic hash function LAKE-256 proposed at FSE 2008 by Aumasson, Meier and Phan. By exploiting non-injectivity of some of the building primitives of LAKE, we show three different collision and near-collision attacks on the compression function. The first attack...