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Sample records for cle elum lake

  1. Cle Elum Lake Restoration Feasibility Study: Fish Husbandry Research, 1988-1991 Progress Report.

    Energy Technology Data Exchange (ETDEWEB)

    Flagg, Thomas A.

    1991-09-01

    The National Marine Fisheries Service (NMFS) and the Bonneville Power Administration (BPA) are involved in a project to evaluate the feasibility of re-establishing anadromous salmon runs to Cle Elum Lake in the Yakima River Basin of Washington state. Historically, the Yakima River system supported large runs of anadromous salmonids that contributed significantly to the Columbia River harvest. Habitat destruction and overfishing drastically reduced run abundance prior to the early 1900s. Salmon runs were eliminated from upper reaches of the Yakima River Basin with development of irrigation storage reservoirs without fishways in the early 1900s. The goal of the NMFS/BPA project is to determine if it is feasible for anadromous salmonids to recolonize the habitat above Cle Elum Dam under the present format of irrigation water withdrawal from the reservoir. The primary concern is whether anadromous fish can successfully exit Cle Elum Lake and survive downstream passage through the Yakima and Columbia Rivers to the ocean.

  2. Cle Elum Lake Sockeye Salmon Restoration Feasibility Study, 1986-1988 Progress Report.

    Energy Technology Data Exchange (ETDEWEB)

    Flagg, Thomas A.

    1988-10-01

    In 1986, a multi-year project to evaluate the biological feasibility of reestablishing anadromous sockeye salmon (Oncorhynchus nerka) runs to Cle Elum Lake in the Yakima River Basin was established between the Bonneville Power Administration (BPA) and the National Marine Fisheries Service (NMFS). This program involves the capture, spawning, and rearing of disease-free donor stock in 1987 and 1988 and assessment of juvenile outmigration and survival from Cle Elum Lake in 1989 and 1990. Work in 1987--1988 involved collection of adult sockeye salmon from the Lake Wenatchee run and incubation and rearing of progeny as donor stock. In July 1987, 263 adults were captured at the Dryden fishway on the Wenatchee River and transferred to net-pens in Lake Wenatchee. Adults were held approximately 90 days and spawned, and the eggs were transferred to a quarantine hatchery. Pre-spawning survival was 95.1%, and all spawners were certified as being free of Infectious Hematopoietic Necrosis (IHN) and other replicating viruses. Egg viability averaged about 40%; however, eyed egg to hatch survival was over 99%. Juveniles are being reared in quarantine, and survival to date is about 92%. The NMFS currently has over 131,000 fry (0.7 g average weight) in culture. Fry have been certified twice (at 0.12 g and 0.25 g average weight) as being free of IHN and other replicating viruses. Viral certification will continue throughout rearing. 13 refs., 4 figs., 3 tabs.

  3. Cle Elum Lake Sockeye Salmon Restoration Feasibility Study, 1987-1989 Progress Report.

    Energy Technology Data Exchange (ETDEWEB)

    Flagg, Thomas A.

    1990-02-01

    This report summarizes research activities conducted by the National Marine Fisheries Service (NMFS) from July 1988 through March 1989 relating to the Cle Elum Lake sockeye salmon restoration feasibility study. During this period, efforts focused on collection and spawning of adult sockeye salmon from the Wenatchee River, incubation of eggs from the 1988-brood, and the rearing of juveniles from the 1987-brood. In late July and early August 1988, 520 adult sockeye salmon were captured at fishways on the Wenatchee River and transferred to net-pens in Lake Wenatchee. Fish were held to maturity in late September and early October, spawned, and eggs incubated at a quarantine hatchery in Seattle, WA. The 336 sockeye salmon successfully spawned from the net-pens at Lake Wenatchee were surveyed for the presence of infectious hematopoietic necrosis (IHN) and other replicating viruses. In addition, 13 and 5 sockeye salmon spawners were surveyed from spawning grounds on the White and Little Wenatchee Rivers, respectively, from within the Lake Wenatchee system. 12 refs., 4 figs., 6 tabs.

  4. Cle Elum and Supplementation Research Facility : Monthly Progress Report October 2008.

    Energy Technology Data Exchange (ETDEWEB)

    Cle Elum Supplementation and Research Facility

    2008-12-11

    FISH PRODUCTION: On October 7th the 2008 spawning season was completed. 823 adults were transferred to the facility for the 2008 season. The overall adult mortality was 6.9% (1.3% pre-spawning mortality and 5.6% encountered after sorting). Wild/natural salmon collected included 278 females, 173 males, and 29 jacks for a total 480 fish for the 2008 brood. Supplemented brood stock collected included 149 adults (85 females, 35 males and 29 jacks). Hatchery control brood collected for research included 194 adults (91 females, 68 males and 35 jacks). Eggs will be inventoried in November with an actual summary of eggs numbers to be submitted for the November report. The estimated egg takes (production) for the 2008 season was 1,375,146 eggs with 1,006,063 comprising of W x W crosses and 250,755 eggs of H x H crosses with 118,328 supplement crosses. Total fish on hand for the 2007 brood is 768,751 with an average fish per pound of 30.6 f/lb. FISH CULTURE: The marking and pit-tagging operation started on October 13th. The pit-tagging portion was completed on October 23rd. A total 40,000 juveniles were pit-tagged (2,000 from each of the production ponds and 4,000 each for the hatchery juvenile ponds 9 & 10). Cle Elum staff began shocking, sorting, counting and splitting eggs in incubation. Shocking eggs will separate live eggs from dead eggs. Eggs are treated with formalin three times a week to control fungus. The focus for the culturists during the month of October entail completing the final spawn (egg take) on the 7th, pond cleaning, keeping the marking trailers supplied with fish and end of month sampling. The adult holding ponds were power washed and winterized for the shut down period. Facility crew members Greg Strom and Mike Whitefoot assisted Joe Blodgett and his crew with fish brood collection on the 22nd of October. Fall Chinook and Coho salmon were seined up and put in tanker trucks from Chandler canal and transported to holding ponds for later spawning. Charlie

  5. Cle Elum Lake anadromous salmon restoration feasibility study: Summary of research, Final Report 2000

    International Nuclear Information System (INIS)

    The focus of this research was to study the feasibility for anadromous salmonids to recolonize the habitat above reservoirs in the Yakima River without disruption to irrigation withdrawals. A primary concern was whether anadromous fish could successfully exit reservoirs and survive downstream passage through the Yakima and Columbia Rivers to the ocean

  6. Cle Elum Lake Anadromous Salmon Restoration Feasibility Study: Summary of Research, 1986-1999 Progress Report.

    Energy Technology Data Exchange (ETDEWEB)

    Dey, Douglas

    2000-04-01

    The focus of this research was to study the feasibility for anadromous salmonids to recolonize the habitat above reservoirs in the Yakima River without disruption to irrigation withdrawals. A primary concern was whether anadromous fish could successfully exit reservoirs and survive downstream passage through the Yakima and Columbia Rivers to the ocean.

  7. 75 FR 5626 - Cle Elum Dam Fish Passage Facilities and Fish Reintroduction Project; Kittitas County, WA INT-DES...

    Science.gov (United States)

    2010-02-03

    ... of Reclamation (Reclamation) published a notice in the Federal Register on April 8, 2009 (74 FR 16007... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF THE INTERIOR... Assistance for Public Meetings TTY users may dial 711 to obtain a toll free TTY relay. Requests for...

  8. The CLE gene family in Populus trichocarpa.

    Science.gov (United States)

    Liu, Zhijun; Yang, Nan; Lv, Yanting; Pan, Lixia; Lv, Shuo; Han, Huibin; Wang, Guodong

    2016-06-01

    The CLE (CLAVATA3/Embryo Surrounding Region-related) peptides are small secreted signaling peptides that are primarily involved in the regulation of stem cell homeostasis in different plant meristems. Particularly, the characterization of the CLE41-PXY/TDR signaling pathway has greatly advanced our understanding on the potential roles of CLE peptides in vascular development and wood formation. Nevertheless, our knowledge on this gene family in a tree species is limited. In a recent study, we reported on a systematically investigation of the CLE gene family in Populus trichocarpa. The potential roles of PtCLE genes were studied by comparative analysis and transcriptional profiling. Among fifty PtCLE members, many PtCLE proteins share identical CLE motifs or contain the same CLE motif as that of AtCLEs, while PtCLE genes exhibited either comparable or distinct expression patterns comparing to their Arabidopsis counterparts. These findings indicate the existence of both functional conservation and functional divergence between PtCLEs and their AtCLE orthologues. Our results provide valuable resources for future functional investigations of these critical signaling molecules in woody plants. PMID:27232947

  9. The Hausdorff dimension of the CLE gasket

    CERN Document Server

    Miller, Jason; Wilson, David B

    2012-01-01

    The conformal loop ensemble CLE_kappa is the canonical conformally invariant probability measure on non-crossing loops in a proper simply connected domain in the complex plane. The parameter kappa varies between 8/3 and 8; CLE_{8/3} is empty while CLE_8 is a single space-filling loop. In this work we study the geometry of the CLE gasket, the set of points not surrounded by any loop of the CLE. We show that the almost sure Hausdorff dimension of the gasket is bounded from below by 2-(8-kappa)(3 kappa-8)/(32 kappa) when 4CLE_kappa gasket dimension for all values of kappa for which it is defined. The dimension agrees with the prediction of Duplantier-Saleur (1989) for the FK gasket.

  10. Lake

    Science.gov (United States)

    Wien, Carol Anne

    2008-01-01

    The lake is blue black and deep. It is a glaciated finger lake, clawed out of rock when ice retracted across Nova Scotia in a northerly direction during the last ice age. The lake is narrow, a little over a mile long, and deep, 90 to 190 feet in places according to local lore, off the charts in others. The author loves to swim there, with a sense…

  11. CLE Peptide Signaling and Crosstalk with Phytohormones and Environmental Stimuli

    OpenAIRE

    Wang, Guodong; Zhang, Guohua; Wu, Mengyao

    2016-01-01

    The CLE (CLAVATA3/Endosperm surrounding region-related) peptide family is one of the best-studied secreted peptide families in plants. Accumulated data have revealed that CLE genes play vital roles on stem cell homeostasis in different types of meristems. Additionally, CLE genes have been found to perform various biological roles in plant growth and development, and in response to environmental stimuli. With recent advances on our understanding of CLE peptide function, it is showing that the ...

  12. CLE peptides and their signaling pathways in plant development.

    Science.gov (United States)

    Yamaguchi, Yasuka L; Ishida, Takashi; Sawa, Shinichiro

    2016-08-01

    Cell-to-cell communication is crucial for the coherent functioning of multicellular organisms, and they have evolved intricate molecular mechanisms to achieve such communication. Small, secreted peptide hormones participate in cell-to-cell communication to regulate various physiological processes. One such family of plant peptide hormones is the CLAVATA3 (CLV3)/EMBRYO SURROUNDING REGION-related (CLE) family, whose members play crucial roles in the differentiation of shoot and root meristems. Recent biochemical and genetic studies have characterized various CLE signaling modules, which include CLE peptides, transmembrane receptors, and downstream intracellular signaling components. CLE signaling systems are conserved across the plant kingdom but have divergent modes of action in various developmental processes in different species. Moreover, several CLE peptides play roles in symbiosis, parasitism, and responses to abiotic cues. Here we review recent studies that have provided new insights into the mechanisms of CLE signaling. PMID:27229733

  13. CLE Peptides in Plants: Proteolytic Processing,Structure-Activity Relationship, and Ligand-Receptor Interaction

    Institute of Scientific and Technical Information of China (English)

    Xiaoming Gao; Yongfeng Guo

    2012-01-01

    Ligand-receptor signaling initiated by the CLAVATA3/ENDOSPERM SURROUNDING REGION (CLE) family peptides is critical in regulating cell division and differentiation in meristematic tissues in plants.Biologically active CLE peptides are released from precursor proteins via proteolytic processing.The mature form of CLE ligands consists of 12-13 amino acids with several post-translational modifications.This review summarizes recent progress toward understanding the proteolytic activities that cleave precursor proteins to release CLE peptides,the molecular structure and function of mature CLE ligands,and interactions between CLE ligands and corresponding leucine-rich repeat (LRR) receptor-like kinases (RLKs).

  14. An auxin responsive CLE gene regulates shoot apical meristem development in Arabidopsis

    Directory of Open Access Journals (Sweden)

    Hongyan eGuo

    2015-05-01

    Full Text Available Plant hormone auxin regulates most, if not all aspects of plant growth and development, including lateral root formation, organ pattering, apical dominance and tropisms. Peptide hormones are peptides with hormone activities. Some of the functions of peptide hormones in regulating plant growth and development are similar to that of auxin, however, the relationship between auxin and peptide hormones remains largely unknown. Here we report the identification of OsCLE48, a rice (Oryza sativa CLE (CLAVATA3/ENDOSPERM SURROUNDING REGION gene, as an auxin response gene, and the functional characterization of OsCLE48 in Arabidopsis and rice. OsCLE48 encodes a CLE peptide hormone that is similar to Arabidopsis CLEs. RT-PCR analysis showed that OsCLE48 was induced by exogenously application of IAA (indole-3-acetic acid, a naturally occurred auxin. Expression of integrated OsCLE48p:GUS reporter gene in transgenic Arabidopsis plants was also induced by exogenously IAA treatment. These results indicate that OsCLE48 is an auxin responsive gene. Histochemical staining showed that GUS activity was detected in all the tissue and organs of the OsCLE48p:GUS transgenic Arabidopsis plants. Expression of OsCLE48 under the control of the 35S promoter in Arabidopsis inhibited shoot apical meristem development. Expression of OsCLE48 under the control of the CLV3 native regulatory elements almost completely complemented clv3-2 mutant phenotypes, suggesting that OsCLE48 is functionally similar to CLV3. On the other hand, expression of OsCLE48 under the control of the 35S promoter in Arabidopsis has little, if any effects on root apical meristem development, and transgenic rice plants overexpressing OsCLE48 are morphologically indistinguishable from wild type plants, suggesting that the functions of some CLE peptides may not be fully conserved in Arabidopsis and rice.

  15. CLE peptide signaling and nitrogen interactions in plant root development.

    Science.gov (United States)

    Araya, Takao; von Wirén, Nicolaus; Takahashi, Hideki

    2016-08-01

    The CLAVATA signaling pathway is essential for the regulation of meristem activities in plants. This signaling pathway consists of small signaling peptides of the CLE family interacting with CLAVATA1 and leucine-rich repeat receptor-like kinases (LRR-RLKs). The peptide-receptor relationships determine the specificities of CLE-dependent signals controlling stem cell fate and differentiation that are critical for the establishment and maintenance of shoot and root apical meristems. Plants root systems are highly organized into three-dimensional structures for successful anchoring and uptake of water and mineral nutrients from the soil environment. Recent studies have provided evidence that CLE peptides and CLAVATA signaling pathways play pivotal roles in the regulation of lateral root development and systemic autoregulation of nodulation (AON) integrated with nitrogen (N) signaling mechanisms. Integrations of CLE and N signaling pathways through shoot-root vascular connections suggest that N demand modulates morphological control mechanisms and optimize N uptake as well as symbiotic N fixation in roots. PMID:26994997

  16. The Function of the CLE Peptides in Plant Development and Plant-Microbe Interactions.

    Science.gov (United States)

    Betsuyaku, Shigeyuki; Sawa, Shinichiro; Yamada, Masashi

    2011-01-01

    The CLAVATA3 (CLV3)/ENDOSPERM SURROUNDING REGION (ESR) (CLE) peptides consist of 12 or 13 amino acids, including hydroxylated proline residues that may or may not contain sugar modifications, and function in a non-cell-autonomous fashion. The CLE gene was first reported in Zea mays (maize) as an endosperm-specific gene, ESR, in 1997 (Opsahl-Ferstad et al., 1997). CLE genes encode secreted peptides that function in the extracellular space as intercellular signaling molecules and bind to cellular surface receptor-like proteins to transmit a signal. CLE peptides regulate various physiological and developmental processes and its signaling pathway are conserved in diverse land plants. Recent CLE functional studies have pointed to their significance in regulating meristematic activity in plant meristems, through the CLE-receptor kinase-WOX signaling node. CLV3 and CLE40 are responsible for maintenance of shoot apical meristem (SAM) and root apical meristem (RAM) function, regulating homeodomain transcription factors, WUSCHEL (WUS) and WUSCHEL-related homeobox 5 (WOX5), respectively. CLE and WOX form an interconnected and self-correcting feedback loop to provide robustness to stem cell homeostasis. CLE peptides are required for certain plant-microbe interactions, such as those that occur during legume symbiosis and phytopathogenic nematode infection. Understanding the molecular properties of CLE peptides may provide insight into plant cell-cell communication, and therefore also into plant-microbe interactions. PMID:22303273

  17. Remarques sur la publication du siècle

    OpenAIRE

    Viala, Alain

    2008-01-01

    Les travaux sur les questions de réception sont en essor depuis une bonne vingtaine d'années et, ces derniers temps, des colloques et des séminaires ont été consacrés aux formes et enjeux de la réception du xviie siècle dans les périodes ultérieures, qu'il s'agisse du « siècle » dans sa globalité ou, plus souvent, de tel ou tel aspect ou tel ou tel auteur. Apporter une pierre à ce chantier est, en soi, chose utile sans aucun doute. Mais il est diverses façons de l'envisager. Or au moment où l...

  18. The Function of the CLE Peptides in Plant Development and Plant-Microbe Interactions

    OpenAIRE

    Betsuyaku, Shigeyuki; Sawa, Shinichiro; Yamada, Masashi

    2011-01-01

    The CLAVATA3 (CLV3)/ENDOSPERM SURROUNDING REGION (ESR) (CLE) peptides consist of 12 or 13 amino acids, including hydroxylated proline residues that may or may not contain sugar modifications, and function in a non-cell-autonomous fashion. The CLE gene was first reported in Zea mays (maize) as an endosperm-specific gene, ESR, in 1997 (Opsahl-Ferstad et al., 1997). CLE genes encode secreted peptides that function in the extracellular space as intercellular signaling molecules and bind to cellul...

  19. An auxin responsive CLE gene regulates shoot apical meristem development in Arabidopsis.

    Science.gov (United States)

    Guo, Hongyan; Zhang, Wei; Tian, Hainan; Zheng, Kaijie; Dai, Xuemei; Liu, Shanda; Hu, Qingnan; Wang, Xianling; Liu, Bao; Wang, Shucai

    2015-01-01

    Plant hormone auxin regulates most, if not all aspects of plant growth and development, including lateral root formation, organ pattering, apical dominance, and tropisms. Peptide hormones are peptides with hormone activities. Some of the functions of peptide hormones in regulating plant growth and development are similar to that of auxin, however, the relationship between auxin and peptide hormones remains largely unknown. Here we report the identification of OsCLE48, a rice (Oryza sativa) CLE (CLAVATA3/ENDOSPERM SURROUNDING REGION) gene, as an auxin response gene, and the functional characterization of OsCLE48 in Arabidopsis and rice. OsCLE48 encodes a CLE peptide hormone that is similar to Arabidopsis CLEs. RT-PCR analysis showed that OsCLE48 was induced by exogenously application of IAA (indole-3-acetic acid), a naturally occurred auxin. Expression of integrated OsCLE48p:GUS reporter gene in transgenic Arabidopsis plants was also induced by exogenously IAA treatment. These results indicate that OsCLE48 is an auxin responsive gene. Histochemical staining showed that GUS activity was detected in all the tissue and organs of the OsCLE48p:GUS transgenic Arabidopsis plants. Expression of OsCLE48 under the control of the 35S promoter in Arabidopsis inhibited shoot apical meristem development. Expression of OsCLE48 under the control of the CLV3 native regulatory elements almost completely complemented clv3-2 mutant phenotypes, suggesting that OsCLE48 is functionally similar to CLV3. On the other hand, expression of OsCLE48 under the control of the 35S promoter in Arabidopsis has little, if any effects on root apical meristem development, and transgenic rice plants overexpressing OsCLE48 are morphologically indistinguishable from wild type plants, suggesting that the functions of some CLE peptides may not be fully conserved in Arabidopsis and rice. Taken together, our results showed that OsCLE48 is an auxin responsive peptide hormone gene, and it regulates shoot apical

  20. Net ecosystem exchange from five land-use transitions to bioenergy crops from four locations across the UK - The Ecosystem Land Use Modelling & Soil Carbon GHG Flux Trial (ELUM) project.

    Science.gov (United States)

    Xenakis, Georgios; Perks, Mike; Harris, Zoe M.; McCalmont, Jon; Rylett, Daniel; Brooks, Milo; Evans, Jonathan G.; Finch, Jon; Rowe, Rebecca; Morrison, Ross; Alberti, Giorgio; Donnison, Ian; Siebicke, Lukas; Morison, James; Taylor, Gail; McNamara, Niall P.

    2016-04-01

    A major part of international agreements on combating climate change is the conversion from a fossil fuel economy to a low carbon economy. Bioenergy crops have been proposed as a way to improve energy security while reducing CO2 emissions to help mitigate the effects of climate change. However, the impact of land-use change from a traditional land use (e.g., arable and grassland) to bioenergy cropping systems on greenhouse gas balance (GHG) and carbon stocks are poorly quantified at this time. The Ecosystem Land Use Modelling & Soil Carbon GHG Flux Trial (ELUM) project was commissioned and funded by the Energy Technologies Institute (ETI) to provide scientific evidence within the UK on a range of land-use conversions (LUC) to bioenergy crops. The ELUM network consists of seven partners investigating five LUCs in four locations including Scotland, Wales, North and South England. Transitions included grasslands to short rotation forestry (SRF), to short rotation coppice willow (SRC) and to Miscanthus and arable to SRC and Miscanthus Measurements of net ecosystem exchange (NEE) along with continuous measurements of meteorological conditions were made at seven sub-sites over a two-year period. Results showed that, over two years, two of the land-uses, a grassland in South England and a grassland conversion to Miscanthus in Wales were net sources of carbon. The greatest carbon sink was into the SRF site in Scotland followed by the SRC willow in South England. The annual terrestrial ecosystem respiration (TER) for the SRC willow in North and South Sussex sites were similar, but the annual GPP at the South England site was about 27% higher than that the North England site. Establishing a long term network will allow us to continue monitoring the effects of land use change on whole ecosystem carbon balance, providing an insight into which types of LUC are suitable for bioenergy cropping in the UK.

  1. Decision Making in the Connected Learning Environment (CLE

    Directory of Open Access Journals (Sweden)

    Anas Belahcen

    2016-03-01

    Full Text Available In the last years, we have witnessed to an increasingly heightened awareness of the potential benefits of a challenging and promising educational research area : Adaptive Learning [1]. It has become one of the central technologies in education [2] and was recently named, by Gartner, as the number one strategic technology to impact education in 2015 [3]. In fact, adaptive learning systems become more accessible to educational institutions, corporations, and individuals, however, the challenges encountered are more structural and operational rather than technological [4]. While a lot of research has focused on development and evaluation of technological aspects [5], serious questions remain about the motivation of learners [6],[7] and also the design of the content (or domain model [8],[9] including the learner's autonomy issues [9],[10],[11] and the lack of the learner's control [9],[12],[13]. In order to overcome those challenges, we propose CLE “Connected Learning Environment” which is an ubiquitous learning environment [14] that provide to the learners of this generation a learning environment adapted to their expectations and their lifestyle habits and stimulate also their motivation. As a pedagogical approach, CLE adopts the connectivism [15] and take advantage from its benefits (adaptation to the current technological advances [16], management of learning in communities [17], openness with respect to external resources[18], etc. and adapts this approach in a formal context even though the connectivism was conceived as an informal pedagogical approach [19][20]. CLE introduces a new pedagogical process including four phases detailed later (Knowledge construction, Decision making, Validation, Evaluation and the knowledge construction phase is characterized by the collaboration and communication between heterogeneous communities composed of humans and smart objects [14]. However, the ability to distinguish relevant information among the

  2. Het fin-de-siècle als vertoning

    Directory of Open Access Journals (Sweden)

    W. Krul

    2002-01-01

    Full Text Available

    1900

    Wessel Krul
    In their publication entitled 1900: Hoogtij van burgerlijke cultuur, the authors, Jan Bank and Maarten van Buuren, failed to pay adequate attention to the contrasts and differences that typified Dutch culture at the fin de siècle. The book therefore lacks analytical precision. The term 'bourgeois culture' should not have been applied in such an all-inclusive and unambiguous manner.

  3. ADM-CLE approach for detecting slow variables in continuous time Markov chains and dynamic data

    CERN Document Server

    Cucuringu, Mihai

    2015-01-01

    A method for detecting intrinsic slow variables in high-dimensional stochastic chemical reaction networks is developed and analyzed. It combines anisotropic diffusion maps (ADM) with approximations based on the chemical Langevin equation (CLE). The resulting approach, called ADM-CLE, has the potential of being more efficient than the ADM method for a large class of chemical reaction systems, because it replaces the computationally most expensive step of ADM (running local short bursts of simulations) by using an approximation based on the CLE. The ADM-CLE approach can be used to estimate the stationary distribution of the detected slow variable, without any a-priori knowledge of it. If the conditional distribution of the fast variables can be obtained analytically, then the resulting ADM-CLE approach does not make any use of Monte Carlo simulations to estimate the distributions of both slow and fast variables.

  4. Mathematical modelling of WOX5- and CLE40-mediated columella stem cell homeostasis in Arabidopsis

    OpenAIRE

    Richards, Sarah; Wink, Rene H.; Simon, Rüdiger

    2015-01-01

    Highlight An unknown columella stem cell (CSC)-regulating factor subject to regulation by CLE40 can maintain CSCs in the absence of WOX5. Mathematical modelling of CSC homeostasis highlights importance of intercellular signalling.

  5. An auxin responsive CLE gene regulates shoot apical meristem development in Arabidopsis

    OpenAIRE

    Hongyan eGuo; Wei eZhang; Hainan eTian; Kaijie eZheng; Xuemei eDai; Shanda eLiu; Qingnan eHu; Xianling eWang; Bao eLiu; Shucai eWang

    2015-01-01

    Plant hormone auxin regulates most, if not all aspects of plant growth and development, including lateral root formation, organ pattering, apical dominance and tropisms. Peptide hormones are peptides with hormone activities. Some of the functions of peptide hormones in regulating plant growth and development are similar to that of auxin, however, the relationship between auxin and peptide hormones remains largely unknown. Here we report the identification of OsCLE48, a rice (Oryza sativa) CLE...

  6. Enhanced resistance to soybean cyst nematode Heterodera glycines in transgenic soybean by silencing putative CLE receptors.

    Science.gov (United States)

    Guo, Xiaoli; Chronis, Demosthenis; De La Torre, Carola M; Smeda, John; Wang, Xiaohong; Mitchum, Melissa G

    2015-08-01

    CLE peptides are small extracellular proteins important in regulating plant meristematic activity through the CLE-receptor kinase-WOX signalling module. Stem cell pools in the SAM (shoot apical meristem), RAM (root apical meristem) and vascular cambium are controlled by CLE signalling pathways. Interestingly, plant-parasitic cyst nematodes secrete CLE-like effector proteins, which act as ligand mimics of plant CLE peptides and are required for successful parasitism. Recently, we demonstrated that Arabidopsis CLE receptors CLAVATA1 (CLV1), the CLAVATA2 (CLV2)/CORYNE (CRN) heterodimer receptor complex and RECEPTOR-LIKE PROTEIN KINASE 2 (RPK2), which transmit the CLV3 signal in the SAM, are required for perception of beet cyst nematode Heterodera schachtii CLEs. Reduction in nematode infection was observed in clv1, clv2, crn, rpk2 and combined double and triple mutants. In an effort to develop nematode resistance in an agriculturally important crop, orthologues of Arabidopsis receptors including CLV1, CLV2, CRN and RPK2 were identified from soybean, a host for the soybean cyst nematode Heterodera glycines. For each of the receptors, there are at least two paralogues in the soybean genome. Localization studies showed that most receptors are expressed in the root, but vary in their level of expression and spatial expression patterns. Expression in nematode-induced feeding cells was also confirmed. In vitro direct binding of the soybean receptors with the HgCLE peptide was analysed. Knock-down of the receptors in soybean hairy roots showed enhanced resistance to SCN. Our findings suggest that targeted disruption of nematode CLE signalling may be a potential means to engineer nematode resistance in crop plants. PMID:25581705

  7. Muller (Claude), Le Sundgau au XVIIIe siècle

    OpenAIRE

    Claerr-Stamm, Gabrielle

    2012-01-01

    Après « Colmar au XVIIIe siècle », « L’Outre Forêt au XVIIIe siècle » et plus récemment « L’Alsace au XVIIIe siècle », Claude Muller, directeur de l’Institut d’Histoire d’Alsace nous livre ici une synthèse sur l’histoire du Sundgau au XVIIIe siècle selon un plan désormais classique, « Le roi et les élites », « Le ciel et les âmes » et « Le sol et les hommes ». « De ce Sundgau au XVIIIe siècle, Claude Muller propose d’abord la conception d’un âge d’or, d’un apogée de la civilisation rurale bas...

  8. La présence des Nabatéens en Italie (ier siècle av.-iie siècle apr. J.-C.)

    OpenAIRE

    Schwentzel, Christian-Georges

    2015-01-01

    La présence des Nabatéens en Italie est attestée par plusieurs documents épigraphiques ainsi que par quelques monuments découverts à Pouzzoles : des autels et des objets de culte, des sculptures. Cette présence s’est sans doute développée à la fin du iie s. av. J.-C., ou au début du ier siècle av. J.-C., avant de s’effacer, probablement au iie siècle apr. J.-C. En tout cas, les documents épigraphiques mentionnant la présence de Nabatéens en Italie sont datés des règnes de Malichos Ier (58-30 ...

  9. Dianchi Lake

    OpenAIRE

    Gipouloux, François

    2012-01-01

    This photo is taken in Dianchi lake of Kunming city. After 1970, the industrial zones and farmland areas around Kunming evacuated waste water into Dianchi Lake, resulting in a significant growth of cyanobacteria and serious eutrophication in Dianchi Lake. Although the Kunming city government has been actively trying to solve the problem of pollution in Dianchi Lake, in order to significantly improve water quality, the lake is still at a pollution level far below the level of drinkable water.

  10. La famille Richou : de la meunerie à la banque en Anjou (fin XVIIIe siècle-début XXe siècle

    Directory of Open Access Journals (Sweden)

    Claire Steimer

    2007-03-01

    Full Text Available L'étude de la famille Richou de la fin du XVIIIe siècle au début du XXe siècle en Maine-et-Loire s'appuie sur ses propriétés encore conservées : moulins, fermes, châteaux, hôtels particuliers, banque. L'évocation de certains membres de la famille permet de montrer l'évolution d'une famille bourgeoise au cours du XIXe siècle, marqué par les révolutions agricoles et industrielles. Les Richou se sont ainsi illustrés tout d'abord dans la meunerie, participant activement à la modernisation de cette activité et au développement des minoteries modernes. Ils ont également conforté leur situation avec l'achat de nombreuses terres et la construction ou le réaménagement de fermes répondant aux nouveaux critères productifs et hygiénistes de la 2e moitié du XIXe siècle. Enfin, ils sont à l'origine d'une des premières banques angevines. A travers cette famille, ce sont donc les grands pôles d'activité du XIXe siècle qui sont étudiés (agriculture, industrie, commerce ainsi que leurs témoins architecturaux préservés.This study of the Richou family, from the end of the 18th century up to the beginning of the 20th, is based on the analysis of the family’s properties which still exist in the Maine-et-Loire department: mills, farms, chateaux, town houses and bank. A closer examination of certain members of the family illustrates the evolution of a bourgeois dynasty during the 19th century characterised by its agricultural and industrial revolutions. The Richous first came to the fore as millers, actively participating in the modernisation of milling techniques and constructing modern industrial flourmills. They consolidated their wealth by land purchases and the construction or modernisation of farm buildings corresponding with the new criteria of agricultural production and hygiene during the second half of the 19th century. Finally, the Richous were at the origins of one of the first banking houses in the Anjou region. The

  11. A CLE-WOX signalling module regulates root meristem maintenance and vascular tissue development in rice.

    Science.gov (United States)

    Chu, Huangwei; Liang, Wanqi; Li, Juan; Hong, Fan; Wu, Yunfei; Wang, Likai; Wang, Juan; Wu, Ping; Liu, Chunming; Zhang, Qifa; Xu, Jian; Zhang, Dabing

    2013-12-01

    CLAVATA3 (CLV3)/ENDOSPERM SURROUNDING REGION (ESR)-related (CLE) proteins belong to a small peptide family conserved in plants. Recent studies in Arabidopsis and rice have revealed a key role for CLEs in mediating cell-cell communication and stem cell maintenance during plant development, but how CLE signalling controls root development in the rice remains largely unknown. Here it is shown that exogenous application of a synthetic dodeca-amino acid peptide corresponding to the CLE motif of the rice FON2-LIKE CLE PROTEIN2 (FCP2p) protein or overexpression of FCP2 terminates root apical meristem (RAM) activity and impairs late metaxylem formation. FCP2p treatment suppresses the expression of the rice QUIESCENT-CENTER-SPECIFIC HOMEOBOX (QHB) gene, a putative orthologue of Arabidopsis WUSCHEL (WUS)-RELATED HOMEOBOX 5 (WOX5) gene, in both quiescent centre and late metaxylem cells; whereas inducible overexpression of QHB reduces the sensitivity of rice to FCP2p treatment. These results together suggest that in rice RAM maintenance and late metaxylem development are probably controlled by the mutual regulation between FCP2 and QHB. Moreover, a cross-species peptide treatment experiment in Arabidopsis implies that FCP2 has both evolutionarily conserved and species-specific roles in root development. PMID:24043854

  12. La bouche au XVIIe siècle

    Directory of Open Access Journals (Sweden)

    Bruno Faux

    2009-12-01

    Full Text Available « Qu’y a-t-il outre l’intelligence de plus prodigieux que la bouche de l’homme ? » (G. P. Harsdörffer. Parce que la bouche est non seulement le siège de l’oralité, mais aussi celui du goût, ainsi qu’un lieu d’expression des affects, elle s’illustre dans la littérature allemande du XVIIe siècle comme un topos dense, capable de générer diverses sortes de récits, autour duquel s’articule un vaste réseau de sens. Voie de passage entre le dedans et le dehors du corps, elle est l’organe frontière proprement dit. D’un point de vue physiologique et rhétorique, elle représente un espace stratégique : la frontière anatomique qu’est la bouche, qui est aussi une frontière symbolique, devient dans l’œuvre de Georg Philipp Harsdörffer ou de Friedrich von Logau le théâtre de conflits éthiques, de la dialectique de l’être et du paraître, de la sincérité et de la fausseté. Une problématique anthropologique fondamentale de la première modernité se reflète dans la métaphore de la frontière, du seuil, du passage, et trouve son expression dans l’opulence des images de la bouche présentes dans la littérature de cette époque. C’est précisément dans la langue poétique, dans la vive picturalité du langage, que les auteurs de l’âge baroque parviennent à établir une forme de savoir qui leur est propre.„Was ist nechst dem Verstand / wunderreicher als der Mund deß Menschen?“ (G. P. Harsdörffer. In der deutschen Literatur des 17. Jahrhunderts ist der Mund ein dichter und vieldeutiger Topos, der sich durch ein starkes Potential an Handlung auszeichnet. Er dient nicht nur dem Reden und Schmecken, sondern auch dem Ausdruck der Gefühle. Als Übergang zwischen Innen und Außen ist er das eigentliche Organ der Grenze. In physiologischer wie rhetorischer Hinsicht wird er damit zu einem strategischen Raum. Bei Georg Philipp Harsdörffer oder Friedrich von Logau wird diese anatomische und zugleich

  13. L'Arabie du Sud et la mer du IIIème siècle av. au VIème siècle apr. J.‑C.

    OpenAIRE

    Schiettecatte, Jérémie

    2012-01-01

    Etude de l'évolution du commerce maritime en Arabie du Sud du 3e siècle avant au 6e siècle après et de l'évolution des ports et du tracé des voies de navigation en fonction du contexte politique plus large (évolution de l'empire romain, de la Perse sassanide).

  14. LIMNOLOGY, LAKE BASINS, LAKE WATERS

    Directory of Open Access Journals (Sweden)

    Petre GÂŞTESCU

    2009-06-01

    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. LIMNOLOGY, LAKE BASINS, LAKE WATERS

    OpenAIRE

    Petre GÂŞTESCU

    2009-01-01

    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 a...

  16. Variable domain I of nematode CLEs directs post-translational targeting of CLE peptides to the extracellular space.

    Science.gov (United States)

    Wang, Jianying; Joshi, Sneha; Korkin, Dmitry; Mitchum, Melissa G

    2010-12-01

    Effector proteins expressed in the esophageal gland cells of cyst nematodes are delivered into plant cells through a hollow, protrusible stylet. Although evidence indicates that effector proteins function in the cytoplasm of the syncytium, technical constraints have made it difficult to directly determine where nematode effector proteins are initially delivered: cytoplasm, extracellular space, or both. Recently, we demonstrated that soybean cyst nematode CLE (HgCLE) propeptides are delivered to the cytoplasm of syncytial cells. Genetic and biochemical analyses indicate that the variable domain (VD) sequence is then required for targeting cytoplasmically delivered nematode CLEs to the apoplast where they function as ligand mimics of endogenous plant CLE peptides. The fact that nematode CLEs are targeted through the gland cell secretory pathway and delivered as mature propeptides into plant cells makes it impossible for these proteins to be subsequently delivered to the extracellular space via co-translational translocation through the endoplasmic reticulum (ER) secretory pathway of the host cell. However, when expressed in transgenic plants, if the mature nematode CLE propeptide harbored a functional cryptic signal peptide, it could possibly traffic to the apoplast through the ER secretory pathway by co-translational translocation. Here, we present evidence that VDI, the N-terminal sequence of the variable domain of HgCLE2, is sufficient for trafficking CLE peptides to the apoplast and that trafficking is indeed through an alternative pathway other than co-translational translocation. PMID:21150256

  17. Se mettre à table au xviiie siècle

    OpenAIRE

    Sofou, Alkisti

    2016-01-01

    Les manuels de savoir-vivre, les Chréstoéthies, parus au xviiie et au xixe siècle s’adressent au large public composé par des couches sociales montantes. Leurs auteurs suivent l’esprit des « moralistes » du siècle qui veulent donner des principes à leur conduite. Ils cherchent aussi à élaborer une éthique nouvelle conforme à l’esprit des siècles afin d’intégrer dans l’esprit de l’hellénisme les codes de civilité et la connaissance des bons usages d’une société, dont les manières de table. Cet...

  18. L’espace yoruba (fin xixe siècle-1960)

    OpenAIRE

    Martineau, Jean-Luc

    2007-01-01

    Au début du xxe siècle, l’espace yoruba nigérian était caractérisé par une situation géopolitique confuse, héritée des guerres civiles yoruba du xixe siècle et des premières décisions administratives des Britanniques, qui suivirent la Pax Britannica (mars 1893-1914). La cité et son oba n’ont plus le même lustre ; la question des « frontières » intérieures fraîchement remaniées conduit en effet les populations de cet espace à repenser leur lien à la collectivité et leur identité. Déstabilisées...

  19. Le mobilier domestique à Lille au XVIIe siècle

    OpenAIRE

    Odile Canneva-Tétu

    2012-01-01

    L'exposition « Lille au XVIIe siècle » présentée au musée des Beaux-Arts de Lille du 15 septembre au 27 décembre 2000 a fourni l'occasion de dresser un premier état des connaissances sur le mobilier civil lillois entre 1600 et 1715. Ce court essai s'appuie sur quelques exemples recensés dans les collections publiques lilloises.

  20. Proust et l’art fin de siècle

    OpenAIRE

    Yvonne Goga

    2009-01-01

    Novateur du roman moderne, Marcel Proust subit pourtant l’influence des artistes fin de siècle. Notre étude se propose de mettre en évidence les aspects de l’esthétique proustienne qui laissent voir les traces de l’esthétisme et de la littérature décadente dans À la recherche du temps perdu.

  1. Proust et l’art fin de siècle

    Directory of Open Access Journals (Sweden)

    Yvonne Goga

    2009-11-01

    Full Text Available Novateur du roman moderne, Marcel Proust subit pourtant l’influence des artistes fin de siècle. Notre étude se propose de mettre en évidence les aspects de l’esthétique proustienne qui laissent voir les traces de l’esthétisme et de la littérature décadente dans À la recherche du temps perdu.

  2. An auxin responsive CLE gene regulates shoot apical meristem development in Arabidopsis

    OpenAIRE

    Guo, Hongyan; Zhang, Wei; Tian, Hainan; Zheng, Kaijie; Dai, Xuemei; Liu, Shanda; Hu, Qingnan; Wang, Xianling; Liu, Bao; Wang, Shucai

    2015-01-01

    Plant hormone auxin regulates most, if not all aspects of plant growth and development, including lateral root formation, organ pattering, apical dominance, and tropisms. Peptide hormones are peptides with hormone activities. Some of the functions of peptide hormones in regulating plant growth and development are similar to that of auxin, however, the relationship between auxin and peptide hormones remains largely unknown. Here we report the identification of OsCLE48, a rice (Oryza sativa) CL...

  3. Musical Dandysme: Aestheticism and Orientalism in fin-de-si�cle France

    OpenAIRE

    Ersoff, Zarah

    2013-01-01

    This dissertation explores some of the ways in which fin-de-si�cle French composers negotiated the boundaries between masculinity, aestheticism and Orientalism in their music. Dandysme - in English, dandyism - refers to the philosophy and practices of the dandy, an individual (usually male) who places particular importance upon physical appearance and mannered elegance, who lives his life with an air of cold indifference, and above all, according to Charles Baudelaire, strives to elevate ae...

  4. Lake George

    OpenAIRE

    Mafabi, P.

    2000-01-01

    Uganda ratified the Ramsar Convention in 1988, and designated Lake George a Ramsar site. Located astride the equator, the lake and associated wetlands support a wide variety of biological resources. The reasons for this are varied, ranging from the good climate to shallow stratified waters (average 2.4m) which allow for a thorough mixing of the different layers, and a high alkalinity and photosynthetic activity. The status of Lake George is varied with most of the wetlands fringing the Lak...

  5. Nana: un regard sur la prostitution à Paris au XIXe siècle

    Directory of Open Access Journals (Sweden)

    Alberto da Silva

    2009-01-01

    Full Text Available Au XIXe siècle, le discours scientifique influence beaucoup la théorie littéraire. En France, l’écrivain et journaliste Émile Zola a joué un rôle très important à la tête d’un mouvement littéraire qui suit cette voie scientifique : le Naturalisme. Inspiré par les théories scientifiques de l’époque, en particulier le déterminisme héréditaire et social, Zola essaye, dans sa littérature et à travers un travail rigoureux de reconstitution historique, d'atteindre la vérité de la réalité socio-économique et de la « nature humaine ». Sur cette base, Zola élabore le projet d'une saga née du croisement de deux familles, les Rougon et les Macquart, qui vont traverser toute la période du Second Empire. Parmi les romans de ce cycle, Nana aborde la question de la prostitution à Paris, au XIXe siècle. Dans cet article, nous comptons soulever deux questions à travers l'analyse de cette oeuvre : celle de la prostitution à Paris, au XIX e siècle, en prenant comme support la littérature historique prostitutionnelle de la période ; et celle de la représentation de la femme donnée par l’auteur dans son livre.

  6. Penser le changement climatique au siècle des Lumières

    OpenAIRE

    Favier, René

    2008-01-01

    Si pour les hommes de science du siècle des Lumières, le climat était une physique réglée dont il convenait de décoder les mécanismes, on ne saurait pourtant dire qu'ils ignorèrent entièrement l'idée même d'un changement climatique, et singulièrement la possibilité d'une action anthropique en la matière.

  7. Playa Lakes

    Data.gov (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...

  8. Lake Ponkapog

    Institute of Scientific and Technical Information of China (English)

    蓝洋

    2002-01-01

    @@ Thirty years ago,Lake Ponkapog in Hartwell,New Jersey,was full of life.Many birds and animals rived beside the water,which was frill of fish.Now there are few birds.animals and fish.The lake water is polluted(污染的).It is in a colour of dirty brown,and it is filled with strange plants.

  9. Lake Victoria: the Changing Lake.

    OpenAIRE

    Mwirigi, P.; Rutagemwa, D.; Gikuma-Njuru, P.; Njuguna, H.; Matovu, A.; Waya, R.; Mwebaza-Ndawula, L.; Ssenfuma-Nsubuga, M.; Kinobe, J.; Abuodha, J.; Hecky, R

    2005-01-01

    Water quality monitoring activities were carried out on physical-chemical parameters, water chemistry and biotic indices at selected littoral and pelagic stations along north-south and east-west transects over an annual cycle between 2000 and 2005. The activities were aimed at collecting baseline information and data for use to define the current lake conditions and make a water quality assessment of the lake in relation to nutrient/ pollutant loadings as a basis for future monitoring surveys...

  10. "Palabras de la Ciencia": Pedro Castera and Scientific Writing in Mexico's "Fin de Siècle"

    Science.gov (United States)

    del Pilar Blanco, María

    2014-01-01

    This essay explores the career of the understudied writer Pedro Castera (1846-1906), who is regarded as one of the first practitioners of science fiction in Mexico. A man of many talents, Castera is one of the most eccentric and eclectic figures in the intellectual life of fin-de-siècle Mexico City. His career took many turns: While during…

  11. The Arabidopsis thaliana CLAVATA3/EMBRYO-SURROUNDING REGION 26 (CLE26) peptide is able to alter root architecture of Solanum lycopersicum and Brassica napus.

    Science.gov (United States)

    Czyzewicz, Nathan; De Smet, Ive

    2016-01-01

    Optimal development of root architecture is vital to the structure and nutrient absorption capabilities of any plant. We recently demonstrated that AtCLE26 regulates A. thaliana root architecture development, possibly by altering auxin distribution to the root apical meristem via inhibition of protophloem development. In addition, we showed that AtCLE26 application is able to induce a root architectural change in the monocots Brachypodium distachyon and Triticum aestivum. Here, we showed that application of the synthetic AtCLE26 peptide similarly affects other important agricultural species, such as Brassica napus and Solanum lycopersicum. PMID:26669515

  12. Le café à Istanbul au xviie siècle

    OpenAIRE

    Mantran, Robert

    2013-01-01

    Sans remonter aux origines de la consommation du café en Arabie, on sait que celle-ci était un fait acquis en Arabie du Sud vers la fin du xive siècle, à la Mekke vers la fin du xve où le café était consommé sous forme de boisson et non plus de fruit et donna lieu à l'ouverture de débits de café (buyût aZ-kahwa) ce qui fût une cause de scandale pour les gens pieux. Ce même état d'esprit animait Khayr Beg, chef de la police de la Mekke, lorsqu'en 917/1511 il obtint que le café fût déclaré ha-r...

  13. L’armement colmarien du XIVe au XVIIe siècle

    OpenAIRE

    Lichtlé, Francis

    2012-01-01

    Depuis le XIIIe siècle, Colmar se sent en sécurité derrière son enceinte médiévale. Entre 1579 et 1618, elle adapte son ancien rempart à l’évolution des techniques d’armement et édifie de nouvelles fortifications et fossés selon des plans établis par Daniel Specklin, tout en renforçant son artillerie qui devient la fierté de la cité. Cette puissance de feu de plusieurs dizaines de canons, de centaines de mousquets et d’arquebuses s’écroule soudainement en 1673 lorsque, sur ordre de Louis XIV,...

  14. Un siècle de recherches pétrolières

    OpenAIRE

    Perrodon, Alain

    1995-01-01

    International audience Comme toute histoire, celle du pétrole a une longue préhistoire. A vrai dire cette "huile de la terre" est d'abord et pendant longtemps utilisée sous sa forme pâteuse de bitume. Les récits de la Bible nous rapportent le rôle de ce produit si abondant en Mésopotamie pour calfater les embarcations ou cimenter les pierres des Ziggourats et vers le Vllème siècle avant J.-C. pour fabriquer le feu médique. Les Romains étendent ces applications à l'éclairage et à la lubrifi...

  15. Musique populaire et musique savante au XIXe siècle. Du "peuple" au "public"

    OpenAIRE

    Leterrier, Sophie-Anne

    2008-01-01

    La production culturelle englobe des formes musicales dont les statuts sont très variés. La chanson du colporteur et la partition symphonique n'appartiennent pas au même "genre" ni par leurs conditions de production, i par leurs formes matérielles, leur circulation, leur public, leur postérité. À ce sujet, l'étude des évolutions en cours au XIXe siècle est intéressante de plusieurs points de vue. D'abord, parce que c'est alors que les institutions destinées à former des "spécialistes" de la m...

  16. Le nouveau visage de l’esclavage au xxe siècle

    OpenAIRE

    Miers, Suzanne

    2005-01-01

    Au début du xxe siècle, l’esclavage de possession était illégal en Occident mais très répandu dans toute l’Afrique, au Moyen-Orient et dans d’autres régions. Les esclaves n’avaient aucun droit et leur asservissement était à vie et héréditaire. Dans les années 1920 et 1930, la Société des Nations (SDN) mit en place des commissions pour s’informer sur l’esclavage « sous toutes ces formes ». Ces commissions élargirent la définition de l’esclavage pour y inclure le travail forcé, le mariage forcé...

  17. La minorité irlandaise à Londres au XVIIIe siècle

    OpenAIRE

    Halimi, Suzy

    2016-01-01

    Au XVIIIe siècle, Londres, qui connaît une forte mortalité, maintient son équilibre démographique grâce à son flux d’immigrants : provinciaux venant d’autres régions du royaume, étrangers comme les Irlandais chassés de leurs campagnes par la pauvreté ; Juifs fuyant les persécutions dont ils sont victimes sur le Continent.La communauté irlandaise de Londres se compose d’éléments variés : artistes et hommes de lettres espérant trouver le succès dans la capitale ; ouvriers dans les industries te...

  18. Rééditer Proust au vingt et unième siècle

    OpenAIRE

    Leriche, Françoise

    2015-01-01

    Comment lira-t-on Proust au xxie siècle ? Les éditions imprimées des années 1980-1990, en intégrant l’intertexte, l’intratexte, et partiellement l’avant-texte dans l’apparat critique d’À la recherche du temps perdu, témoignent d’une évolution de l’intérêt du public vers les processus d’écriture et invitent à une lecture dynamique et « enrichie ». Cette conception « réticulaire » de l’œuvre et du texte en devenir est contemporaine d’une nouvelle épistémê, celle du rhizome, de la navigation. On...

  19. L’eau à Damas et dans son environnement rural au xviiie siècle

    OpenAIRE

    Marino, Brigitte; Meier, Astrid

    2013-01-01

    Le système hydraulique qui alimente la ville de Damas et son environnement rural est très ancien. Mais il est en constante évolution et l’on peut difficilement accréditer l’idée de son caractère immuable. À partir de diverses sources juridiques, cet article s’interroge sur les règles, les pratiques et les procédures administratives et juridiques qui sont en vigueur dans le domaine de la distribution de l’eau à Damas et dans sa campagne au xviiie siècle. Il montre le rôle des autorités juridiq...

  20. RAPHAËL (Freddy) (dir.), Juifs d’Alsace au XXe siècle

    OpenAIRE

    Muller, Gilles

    2016-01-01

    L’esprit d’Hanoucca éclaire l’introduction et la conclusion de ce remarquable ouvrage collectif dirigé par Freddy Raphaël et coordonné par Françoise Weil-Elkouby. La fête d’Hanoucca commémore la victoire militaire et spirituelle des Juifs de Judée sur les armées séleucides lors du IIe siècle avant Jésus-Christ. Selon la tradition rabbinique, c’est au cours cette fête (appelée aussi « fête des Lumières ») que se produit le miracle de la fiole d’huile, permettant aux prêtres du Temple de faire ...

  1. Newton et la chimie française du xviiie siècle

    OpenAIRE

    Bensaude-Vincent, Bernadette

    2012-01-01

    Ce chapitre reprend en traduction – actualisée en fonction des publications récentes – une conférence prononcée en septembre 1998 au workshop Newton’s Legacy organisé par la Sloan Foundation à Pines Lodge (Minnesota). L’interprétation de la chimie française du xviiie siècle est particulièrement délicate du fait d’un certain nombre d’obstacles persistants. Le premier est l’effet de la révolution lavoisienne qui a accrédité l’idée qu’avant Lavoisier la chimie végétait sous le joug des doctrines...

  2. Un siècle de chantiers d’églises en Charente-Maritime

    Directory of Open Access Journals (Sweden)

    Yves Blomme

    2012-04-01

    Full Text Available Durant le XXe siècle, les chantiers d’églises suivent en Charente-Maritime une évolution que l’on pourrait retrouver en maints autres diocèses français. Une fois passés de mode les styles néo-gothique et néoroman, la modernité éclate dans l’entre-deux-guerres, avec une église très Art déco à La Rochelle. Puis ce sont les réparations des ruines causées par la guerre, illustrées surtout par Notre-Dame de Royan. Dans les années 1950 et 1960, de nombreux lieux de culte, souvent modestes, voient le jour. Le mouvement s’arrête brusquement en 1971. Il reprendra cependant à la fin du siècle au travers de deux ou trois réalisations marquées par ce qu’on a appelé la post-modernité.During the XXth century, the construction sites of churches follow in Charente-Maritime an evolution which we could find in many other French dioceses. Once past the neogothic and neo-Romanic styles, the modernity bursts in the interwar period with a church very « art deco » in La Rochelle. Then they are the repairs of ruins caused by the war, illustrated especially by Notre-Dame de Royan. In the 1950s and 1960s, numerous places of worship, often modest, are born. The movement stops abruptly in 1971. It will resume however at the end of the century through two or three realizations marked by what we called the post-modernity.

  3. Koontz Lake

    OpenAIRE

    Zebell, Dennis A; Medors, Sky K; Delgado, Dan G

    2013-01-01

    A case study of the SR 23 replacement at the Koontz Lake Dam will be presented. The dam replacement, road re-alignment, and labyrinth spillway will be discussed. The design criteria and processes associated with each of those items will be discussed as well as the coordination with and expectations of the multiple owners involved with the project.

  4. The recovering Dian Lake

    OpenAIRE

    Ai, Chi-Han

    2013-01-01

    Dian Lake, also known as Kunming Lake, is the largest freshwater lake in Yunnan Province. However, the value of tourism isn't a perpetual blessing for Dian Lake. Since 1980, due to the rapid urbanization in China, water pollution in Dian Lake has worsened year by year.

  5. Un atelier pour trois cloîtres : Carennac, Cadouin et Cahors (fin XVe siècle – début XVIe siècle

    OpenAIRE

    Bohl, Thomas

    2015-01-01

    À la fin du XVe siècle et au début du XVIe siècle, un atelier de sculpteurs itinérants a été particulièrement actif dans le Sud-Ouest de la France, notamment sur les chantiers de Carennac, Cadouin et Cahors, où les cloîtres romans des abbatiales et de la cathédrale ont été dotés d’un nouveau décor. Cet atelier peut vraisemblablement être identifié avec celui de « Maistre Domenge » et d’« Anthoine Constant, son gendre », mentionnés à Bergerac en 1494. Les trois ensembles sculptés (Carennac, Ca...

  6. Bathymetry of Lake Ontario

    Data.gov (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...

  7. Designated Wildlife Lakes - points

    Data.gov (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...

  8. Bathymetry of Lake Michigan

    Data.gov (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...

  9. Bathymetry of Lake Huron

    Data.gov (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...

  10. Hydrography - Lakes Assessments - Attaining

    Data.gov (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...

  11. Bathymetry of Lake Superior

    Data.gov (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...

  12. Great Lakes Bathymetry

    Data.gov (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...

  13. L’honneur en partage. Le duel et les classes bourgeoises en France au XIXe siècle

    OpenAIRE

    Guillet, François

    2008-01-01

    Symbole de l’éthique nobiliaire, le duel continue d’être pratiqué en un siècle traditionnellement considéré comme celui de la domination bourgeoise et sous un régime d’égalité civile. Interprétée par les contemporains comme une imitation de la vieille classe dirigeante par celle qui l’a remplacée, cette persistance résulte avant tout de la prégnance du sentiment de l’honneur, qui sert de dénominateur commun à une classe dirigeante composite pendant la première moitié du XIXe siècle, puis cons...

  14. L’alun dans la littérature des recettes du Ier au XIIe siècle

    OpenAIRE

    Halleux, Robert

    2015-01-01

    Les textes antiques et médiévaux qui traitent des substances appelées stypteria en grec et alumen en latin relèvent de plusieurs traditions : l’histoire naturelle, la pharmacopée, les arts et métiers, l’alchimie. Jusqu’au XIIe siècle, ces textes constituent un ensemble homogène, qui reflète essentiellement les connaissances antiques. Au XIIe siècle, les traductions arabo-latines introduisent de nouvelles variétés (l’alun d’Edesse, l’alun du Yemen), ainsi que de nouvelles pratiques et de nouve...

  15. Jean-Yves LE NAOUR, Catherine VALENTI, Histoire de l'avortement (XIXe-XXe siècle)

    OpenAIRE

    Olivier, Cyril

    2003-01-01

    Jean-Yves Le Naour et Catherine Valenti proposent un ouvrage ambitieux par son propos : faire une histoire de l'avortement depuis le milieu du XIXe jusqu'à la fin du XXe siècle. Entreprise ambitieuse mais nécessaire, une telle synthèse étant inédite en France. L'idée force du livre tient donc dans sa longue durée : un siècle et demi durant lequel la question de l'avortement fut au centre de débats tant politiques, que juridiques, économiques et sociaux. Le problème est pris à bras le c...

  16. Les familles aristocratiques de l'Albigeois au VIème et VIIème siècle

    OpenAIRE

    Réal, Isabelle

    1996-01-01

    Pour l'Aquitaine du VIè et VIIè siècle, quelques sources exceptionnelles permettent de mettre en lumière l'histoire de deux familles aristocratiques de la région albigeoise qui ont su faire parler d'elles : la première appartient à une vieille et puissante lignée sénatoriale du Midi de la Gaule, les Salvi-Didier ; la seconde, aux noms germaniques, celle de Chramsicus et de sa fille Ségolène, s'est probablement fixée à Albi au cours du VIème siècle, accompagnant l'emprise des Francs sur la rég...

  17. The Gospel According to Zola: National Identity and Naturalist Utopia in Fin-de-Siècle France

    OpenAIRE

    Zupsich, Gina Katherine

    2010-01-01

    My dissertation, "The Gospel According to Zola: National Identity and Naturalist Utopia in Fin-de-Siècle France" is a sustained interdisciplinary investigation of Emile Zola's Quatre Evangiles (1899-1903). These novels are an allegory of the French Republic of the future in which the heroic Froment family cures social diseases such as depopulation, agricultural stagnation, recession, anti-Semitism, as well as class and sexual inequality. Although critics have tended to dismiss this series as...

  18. Making space for criminalistics: Hans Gross and fin-de-siècle CSI

    Science.gov (United States)

    Burney, Ian; Pemberton, Neil

    2013-01-01

    This article explores the articulation of a novel forensic object—the ‘crime scene’—and its corresponding expert—the investigating officer. Through a detailed engagement with the work of the late nineteenth-century Austrian jurist and criminalist Hans Gross, it analyses the dynamic and reflexive nature of this model of ‘CSI’, emphasising the material, physical, psychological and instrumental means through which the crime scene as a delineated space, and its investigator as a disciplined agent operating within it, jointly came into being. It has a further, historiographic, aim: to move away from the commonplace emphasis in histories of forensics on fin-de-siècle criminology and toward its comparatively under-explored contemporary, criminalistics. In so doing, it opens up new ways of thinking about the crime scene as a defining feature of our present-day forensic culture that recognise its historical contingency and the complex processes at work in its creation and development. PMID:23036861

  19. Les Nobel juifs de chimie le partage du savoir au XX siècle

    CERN Document Server

    Benguigui, Isaac

    2010-01-01

    L'un des traits marquants et remarquables des Juifs tout au long de leur histoire, plusieurs fois millénaire, a été leur créativité dans tous les domaines, en particulier dans le domaine scientifique. Ils ont participé de façon impressionnante à la remise en cause des valeurs, au démantèlement des dogmes et à l'irruption des forces cachées. On peut d'emblée souligner que la contribution des Juifs à la science a été sans commune mesure avec le pourcentage de la population qu'ils représentent. Cela reste vrai pour la chimie du XXe siècle. A travers la vie et l'oeuvre de 23 prix Nobel de chimie, l'auteur nous livre une histoire passionnante de ces hommes, biens souvent des exilés et d'origine modeste. dont la science fut leur vocation et le partage du savoir leur crédo.

  20. Longevity of Lake Superior lake trout

    Science.gov (United States)

    Schram, Stephen T.; Fabrizio, Mary C.

    1998-01-01

    The age structure of mature lake trout Salvelinus namaycush from the Wisconsin waters of Lake Superior increased following a population recovery that has taken place since the 1960s. As the population aged, it became apparent that scales were unreliable aging structures. Beginning in 1986, we examined both scale and sagittal otolith ages from tagged fish with a known period at liberty. We found large discrepancies in scale and sagittal otolith ages of mature fish, such that scale ages were biased low. We estimated lake trout living up to 42 years, which is greater than previously reported from Lake Superior. Investigators studying lake trout population dynamics in the Great Lakes should be aware that lake trout can live longer than previously thought.

  1. La chimie du XVIIe siècle : une question de principes

    Directory of Open Access Journals (Sweden)

    Rémi Franckowiak

    2008-04-01

    Full Text Available Le tournant du XVIIe au XVIIIe siècle est une période décisive pour l’histoire de la chimie qui passe de la reconnaissance institutionnelle à la contestation de son fondement théorique, pour apparaître au final comme la seule partie de la Physique à pouvoir prétendre atteindre la « vérité certaine ». Ce qui se joue alors n’est rien de moins que la redéfinition de ses principes, à savoir son socle de vérités sur lequel s’appuie la science chimique. Cette période est en fait la dernière étape de l’évolution du rapport entre les deux dimensions – théorique et pratique – dans lesquelles se déploie la chimie, qui a vu, par le développement de l’usage des principes dits seconds, l’ensemble des principes chimiques entrainé vers un réalisme empirique, ayant pour effet d’ôter de la chimie toute cohérence théorique. Aussi l’apparition du mécanisme – pas plus celui de Boyle – n’est-il en réalité responsable du bouleversement que connaît la chimie ; elle n’est pas davantage responsable de sa régénération au tout début du XVIIIe siècle. La conscience de la faiblesse théorique de la chimie va devenir pour elle promesse de vigueur théorique sur la base de ce qui représente sa force : l’expérience. À la suite de la perte de ce qui fut certitude, le chimiste devient un être à ré-instruire. Un chimiste tel que Samuel Cottereau Du Clos illustre parfaitement le passage d’une science chimique comme connaissance des principes à une chimie comme science cette fois du vraisemblable.The last decades of 17th century represent a decisive period for the history of Chemistry which switched from institutional recognition to dispute of its theoretical basis, to seem finally, during the very first years of the next century, the only part of Physics being able to claim reaching the “unquestionable truth”. What did happen then is nothing less than the redefinition of principles of Chemistry

  2. La bande dessinée en Belgique francophone au XIXe siècle

    Directory of Open Access Journals (Sweden)

    Frédéric Paques

    2012-02-01

    Full Text Available La Belgique a une grande tradition de production de bandes dessinées et reconnaît le neuvième art comme l’un des fleurons de sa culture nationale. Pourtant, la plupart des livres traitant d’histoire de la bande dessinée dans ce pays ignorent totalement l’époque pré-hergéenne. Et pour cause, la production de bande dessinée en Belgique est à la fois relativement peu nombreuse et, pour une bonne part, tributaire de l’influence étrangère. De plus, les bandes dessinées présentant du texte sous l’image ont longtemps été complètement ignorées par les historiens du sujet. Cet article se propose de rechercher les diverses apparitions de séquences d’images au XIXe siècle et de les contextualiser. Nombre des exemples que nous avons trouvés constituent des expériences sans lendemain, produites dans des contextes différents de celui qui donnera naissance à la bande dessinée belge de l’âge d’or : trouver une filiation directe n’était pas notre but premier. Pourtant, du Déluge à Bruxelles créé en 1843 par Richard de Querelles aux images populaires du Liégeois Georges Ista, juste avant la première guerre mondiale, la bande dessinée belge au XIXe siècle se révèle au final d’une richesse et d’un intérêt insoupçonnés jusqu’ici.Belgium has a great tradition of production of comic strips and recognizes the 9th art as one of the jewels of its national culture. Nevertheless, most of the books dealing with history of the comic strip in this country ignore totally the time before Hergé. For a good reasons : the production of comic strip in Belgium is relatively rare and, largely, dependent on the foreign influence. Furthermore, comic strips presenting text under the image were completely ignored for a long time by the historians of the subject. What we suggested making in our work, is looking for the diverse appearances of sequences of images through time and contextualise them. Number of the examples

  3. MILLET, PANIS, SARRASIN, MAÏS ET SORGHO : LES MENUS GRAINS DANS LES SYSTÈMES AGRICOLES ANCIENS (France, milieu du XVIème siècle – milieu du XIXème siècle).

    OpenAIRE

    Vouette, Isabelle

    2007-01-01

    Jusqu'au milieu du XIXème siècle, les menus grains se distinguent des gros grains, donnés comme les seules cultures économiquement, alimentairement et symboliquement intéressantes. Pourtant, l'étude de sources aussi variées que les traités de botanique, les manuels d'agriculture, les statistiques napoléoniennes, la correspondance entre intendants et subdélégués, les enquêtes agricoles, les mercuriales ou les publications juridiques indique l'importance économique, géographique, démographique ...

  4. Bathymetry of Lake Erie and Lake Saint Clair

    Data.gov (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...

  5. Archives d’architectes et églises du XXe siècle

    Directory of Open Access Journals (Sweden)

    Simon Texier

    2012-05-01

    Full Text Available Depuis une vingtaine d’années, les archives d’architecture du XXe siècle, conservées au sein de la Cité de l’architecture et du patrimoine, ont été le support d’une considérable avancée de la recherche. L’architecture religieuse en a elle aussi bénéficié ; elle n’en souffre pas moins toujours d’un certain retard, et ce malgré l’extrême richesse des fonds d’architectes ou d’entrepreneurs. L’importance des études préparatoires et des projets non réalisés ou le développement massif de la construction d’édifices religieux après 1945 comptent parmi les axes des recherches possibles.Over the past twenty years, the 20th-century architectural archives held today at the Cité de l’Architecture et du Patrimoine have underpinned considerable progress in research in the history of architecture. Religious architecture has also benefited from this progress, although, despite the considerable interest of the archives of certain architects or building firms, studies in this particular field are still lacking,. Amongst the new research directions that can be suggested today, this article draws attention to two fields: the study of preliminary projects and of projects that, in the end, were not carried out, and the massive development of new religious building after 1945.

  6. La violence en Castille au XVIIe siècle à travers les Indultos de Viernes Santo (1623-1699)

    OpenAIRE

    Chaulet, Rudy

    2009-01-01

    Conservés en grand nombre à Simancas, les indultos de Viernes Santo, sont des pardons qui contiennent des procès utiles à la connaissance de la violence des Castillans du XVIIe siècle. Les homicides étudiés ont surtout lieu en milieu urbain, souvent dans la rue et la nuit, entre personnes de même milieu, souvent modeste, et qu'oppose parfois la hiérarchie des sexes ou des professions. Leur arme favorite est l'épée, leurs combats respectent peu l'art du duel, mais ils sont d'une redoutable eff...

  7. Les plantes tinctoriales dans l'économie du Vaucluse au XIXe siècle

    OpenAIRE

    Peeters, Alice

    2003-01-01

    L'histoire mouvementée des plantes tinctoriales dans le Vaucluse au XIXe siècle permet de distinguer trois cas nettement différents : 1) le déclin d'anciennes cultures comme celle du safran, ou de plantes de cueillette comme le fustet ou la graine d'Avignon, déclin lié au passage d'un très petit artisanat de teinturerie à une industrie ayant besoin d'une production beaucoup plus importante ; 2) les essais de cultures nouvelles comme celle du pastel qui, imposées lors du Blocus continen...

  8. La violence dans les maisons centrales de femmes de Cadillac et de Montpellier au XIXe siècle

    OpenAIRE

    Pennec, Anna Le

    2015-01-01

    Marque de virilité symptomatique d’un monde de la virilité, la violence carcérale est automatiquement associée à une pratique d’hommes. Pourtant, les archives pénitentiaires témoignent de nombreuses agressions physiques et verbales dans les centrales de femmes non-mixtes du Sud-Ouest de la France au XIXe siècle. Sur fond de violence institutionnelle, les membres du personnel et les prisonnières infligent et subissent des violences, certaines conjuguent les deux en tentant de se donner la mort...

  9. Islamisation et arabisation de l'Occident musulman médiéval (viie-xiie siècle)

    OpenAIRE

    Aillet, Cyrille; Amara, Allaoua; Amri, Nelly; Benhima, Yassir; FIERRO, Maribel; Lloret, Sonia Gutiérrez; Moreno, Eduardo Manzano; Nef, Sophie Gilotte et Annliese; Picard, Christophe; Tixier, Emmanuelle; Valérian, Dominique; Voguet, Élise

    2015-01-01

    Dès le viie siècle, les premières expéditions musulmanes touchent l'Afrique du Nord encore partiellement dominée par Byzance. Elles atteignent le Maghreb extrême à l'aube du viiie siècle et s'étendent ensuite au-delà du détroit de Gibraltar. De l'actuelle Tunisie partent les contingents musulmans qui mettent le pied en Sicile au ixe siècle, plaçant l'île sous domination islamique pendant deux siècles. L'islamisation, entendue comme la construction en ces territoires d'institutions et de socié...

  10. Mathieu de Dombasle : un agronome critique de la chimie dans le premier tiers du xixe siècle

    OpenAIRE

    Knittel, Fabien

    2014-01-01

    Résumé Comme l’a bien montré Nathalie Jas, le XIXe siècle est le siècle de la conquête de l’agronomie par la chimie. Même si la date de 1840 et la figure tutélaire de Liebig marquant l’émergence de la chimie agricole méritent nuance, ainsi que Paul Robin et M. Blondel-Mégrelis l’ont expliqué. Si l’agro-chimie est triomphante dans la seconde moitié du XIXe siècle avec, par exemple, un Louis-Nicolas Grandeau (1834-1911), professeur de chimie appliquée à l’agriculture à la Faculté des sciences d...

  11. La chronologie du royaume de Qatabân du Ier siècle avant J.-C. au Ier siècle après J.-C.

    Directory of Open Access Journals (Sweden)

    Mounir Arbach

    2002-04-01

    Full Text Available Les nouvelles découvertes archéologiques et épigraphiques de ces dernières années, effectuées au cours des fouilles franco-italiennes à Tamna`, l'ancienne capitale du royaume de Qatabân, permettent d'établir une nouvelle chronologie des souverains de Qatabân entre le Ier siècle avant J.-C. et le Ier siècle après J.- C.The chronology of the kingdom of Qatabân, from the 1st century BC to the 1st century AD. Archaeological and epigraphical discoveries made in recent years by the Franco-Italian excavations at Tamna`, the ancient capital of the kingdom of Qatabân, allows us to establish a new chronology for the kings of Qatabân during the 1st century BC and the 1st century AD.

  12. ZHOUZHUANG, A "TOWN IN LAKES"

    Institute of Scientific and Technical Information of China (English)

    2005-01-01

    @@ Zhouzhuang Town islocated in thesouthwestern part ofKunshan City,neighboring WujiangCity, Suzhou City andQingpu District ofShanghai City, andsurrounded by ChengLake, Changbai Lake,Dianshan Lake, BaiyiLake and South Lake, asknown as a "town in lakes".

  13. National Lakes Assessment Data

    Data.gov (United States)

    U.S. Environmental Protection Agency — The National Lakes Assessment (NLA) is a first-ever statistically-valid survey of the biological condition of lakes and reservoirs throughout the U.S. The U.S....

  14. DNR 24K Lakes

    Data.gov (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...

  15. L'exploitation du domaine des Templiers en Roussillon au XIIIᵉ siècle

    Directory of Open Access Journals (Sweden)

    Verdón, Laure

    1997-12-01

    Full Text Available The big "cartulaire" of the Mas Déu and the existence of a "capbreu" written in 1264 allow to study the running of the Templars's possessions in Roussillon during the Xlllth century. Cereals, grown in the central plain, were mostly produced by lands cultivated by domestics and salaried employees; parcels of land rented to peasants represented a minimal part of the Templars's incomes. Templars have also, as they did in other countries, encouraged the growth of vineyards; but in this area, this product didn't become a speculative one. We can, at last, have some informations about the Templar's herd and the way it was runned, thanks to the notarial documents. The Templars seemed to have the habit to sell sheeps and wool to some craftsmen of Perpignan and, by this way, they took part of the development of cloth industry in this town.[fr] L'exploitation du vaste domaine constitué par les Templiers en Roussillon (sept maisons dépendent de la commanderie du Mas Déu; elles couvrent les terroirs de la plaine, du Gonflent, du Vallespir et du Fenouillèdes peut être étudiée grâce au cartulaire des Templiers du Mas Déu, composé à la fin du XIIIᵉ siècle, ainsi qu'à un terrier (capbreu daté de 1264. La plaine fournit à l'ordre des ressources céréalières (orge provenant essentiellement de l'exploitation de terres en faire-valoir direct: la seigneurie templière est fondée sur la réserve, la rente tirée des tenures ne constituant qu'une ressource de complément. Le Temple, à la suite d'une politique de bonification des étangs de la plaine, encourage également la culture de la vigne, qui ne devient pas pour autant une culture spéculative. Les sources notariales permettent, enfin, de combler une lacune de la documentation templière: celle relative aux revenus de l'élevage. Le Temple a acquis de nombreux pâturages, il possède un troupeau composite, en grande partie ovin, qu'il exploite en vendant bêtes et laine à des artisans de

  16. Technologies for lake restoration

    OpenAIRE

    Helmut KLAPPER

    2003-01-01

    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...

  17. "Palabras de la ciencia": Pedro Castera and Scientific Writing in Mexico's Fin de Siècle

    Science.gov (United States)

    Blanco, María del Pilar

    2014-03-01

    This essay explores the career of the understudied writer Pedro Castera (1846-1906), who is regarded as one of the first practitioners of science fiction in Mexico. A man of many talents, Castera is one of the most eccentric and eclectic figures in the intellectual life of fin-de-siècle Mexico City. His career took many turns: While during specific periods he devoted himself to writing and participating within the liberal, cosmopolitan culture of Mexico City, he often disappeared from the public eye to devote himself to the development of inventions in the mining industry. The essay discusses the different meanings of `invention' within Castera's oeuvre, namely poetic and scientific innovation. Setting these two concepts within the domains of literature and scientific writing in the global and local fin de siècle, the essay investigates how Castera's journalism and fiction (specifically his 1890 novel Querens) are representative of the wider question of scientific development in Mexico and Latin America as a whole during the nineteenth century. Furthermore, it explores the intersections of aesthetics and science during a critical period of modern intellectual history, in which these two areas of knowledge were gradually defining themselves as two distinctive cultures.

  18. Rival Readings of Hegel at the "fin de siècle": The Case of William Torrey Harris and John Dewey

    Science.gov (United States)

    Johnston, James Scott

    2013-01-01

    William Torrey Harris and John Dewey were the two most important philosophers of education in America at the "fin de siècle." This paper discusses their rival idealisms through an examination of their philosophical and educational pronouncements. As I will show, both are indebted to, and align themselves with, Hegel. However, each…

  19. Some Lake Level Control Alternatives for the Great Salt Lake

    OpenAIRE

    Allen, Marvin E.; Christensen, Ronald K.; Riley, J. Paul

    1983-01-01

    Fluctuations of the level of the Great Salt Lake cause large changes in both surface area and shoreline. Developments adjacent to the lake have been damaged by both high and low lake levels; and unless measures are implemented to regulate lake level fluctuations or otherwise to protect these developments, damages will continue. Various possible managment alternatives for mitigating potential damages from lake leve...

  20. Lake retention of manufactured nanoparticles

    NARCIS (Netherlands)

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

    2015-01-01

    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

  1. Scènes de plage dans la peinture hollandaise du XVIIe siècle: l'entrée de la plage dans l'espace des citadins

    Directory of Open Access Journals (Sweden)

    Rémy Knafou

    2000-06-01

    Full Text Available Les scènes de plage sont une catégorie de la peinture hollandaise, inventée au XVIIe siècle. L'analyse d'un corpus de tableaux peints durant le Siècle d’Or permet de montrer que le «désir de rivage» analysé par Alain Corbin est apparu sur le littoral de la mer du Nord dès le XVIIe siècle avec l'ouverture de la plage aux citadins oisifs venus des villes voisines.

  2. Notarum figura : l’écriture musicale et le monde des signes au IXe siècle

    Directory of Open Access Journals (Sweden)

    Eduardo Henrik Aubert

    2010-10-01

    Full Text Available Quand l’auteur (ou les auteurs du traité De musica disciplina employèrent l’expression notarum figura pour parler de l’écriture musicale au milieu du IXe siècle, il a placé la notation dans le domaine d’une pluralité de marques écrites qui étaient aussi nommées notae : les signes prosodiques, les signes de ponctuation, parmi plusieurs autres. En faisant appel au mot figura dans la même expression – et aussi à forma –, le champ a été élargi davantage et l’écriture musicale a ainsi été potenti...

  3. L'inspection du travail et le droit en Afrique francophone au XXe siècle

    OpenAIRE

    Renucci, Florence

    2009-01-01

    L'objectif de cette étude est de mettre en évidence les grandes lignes de l'histoire de l'inspection du travail et son rapport au droit français en Afrique noire tout au long du XXe siècle. Il s'agit d'une recherche introductive à un travail plus approfondi. Sans nier les différences qui peuvent exister d'un territoire à un autre de l'Afrique, nous espérons dessiner une vue d'ensemble qui devra être vérifiée au cas par cas. Elle s'appuie à la fois sur des sources juridiques traditionnelles (l...

  4. Florence de Caigny, Sénèque le Tragique en France (XVIe-XVIIe siècle)

    OpenAIRE

    Méniel, Bruno

    2012-01-01

    La fin de la Renaissance, l’âge baroque et l’âge classique sont des époques de l’imitation. Pour la tragédie, le modèle sénéquien est essentiel, et l’ouvrage de Florence de Caigny, Sénèque le Tragique en France (XVIe-XVIIe siècles), nous offre enfin la synthèse attendue. Que les œuvres du dramaturge romain aient été traduites intégralement à trois reprises au XVIIe siècle et donné lieu à trente-trois imitations différentes pendant la période étudiée suffit à suggérer l’ampleur de leur récepti...

  5. Les règlements des conflits de succession dans la noblesse bretonne au xiiie siècle

    OpenAIRE

    Morvan, Frédéric

    2011-01-01

    L’histoire médiévale bretonne est marquée par les conflits de succession dans la noblesse bretonne, si importants qu’ils ont nécessité l’intervention des autorités princières. En s’inspirant des méthodes de Geoffroy Plantagenêt, duc de Bretagne de la fin du xiie siècle et surtout de celles de Philippe Auguste, roi de France, qui obtint dès 1205 le ralliement de la noblesse bretonne contre des avantages lors de certaines successions, les nouveaux ducs de Bretagne de la branche capétienne de Dr...

  6. Micenas na Viena fin-de-siècle: Nietzsche, Freud, Hofmannsthal e o eterno retorno do mito

    Directory of Open Access Journals (Sweden)

    Leonardo Munk

    2012-12-01

    Full Text Available Este artigo tem por objetivo investigar a correlação de pensamento entre três importantes nomes da segunda metade do século XIX - Friedrich Nietzsche, Sigmund Freud e Hugo von Hofmannsthal - que se debruçaram sobre as crises da identidade masculina frente ao retorno do matriarcado. Tendo a Viena fin-de-siècle como cenário, o feminino é apresentado aqui por intermédio de Electra, que no texto homônimo de Hofmannsthal representa não só o fortalecimento como a própria destruição da mulher.

  7. « Le parfumeur millionnaire », notable et industriel parisien du xixe siècle

    OpenAIRE

    Briot, Eugénie

    2009-01-01

    Le xixe siècle marque l’émergence de la figure du parfumeur au sein des notabilités parisiennes, où il incarne l’image d’une réussite aussi rapide que spectaculaire. Le marché de la parfumerie connaît en effet à cette époque une croissance que l’on peut légitimement placer à l’origine de ces représentations. En retraçant les parcours des plus éminents d’entre eux, nous nous proposons de mettre plus précisément en évidence les facteurs de l’acquisition de ce statut de notables, et d’examiner e...

  8. Gain-of-function analysis of poplar CLE genes in Arabidopsis by exogenous application and over-expression assays.

    Science.gov (United States)

    Liu, Yisen; Yang, Shaohui; Song, Yingjin; Men, Shuzhen; Wang, Jiehua

    2016-04-01

    Among 50CLEgene family members in thePopulus trichocarpagenome, three and sixPtCLEgenes encode a CLE motif sequence highly homologous toArabidopsisCLV3 and TDIF peptides, respectively, which potentially make them functional equivalents. To test and compare their biological activity, we first chemically synthesized each dodecapeptide and analysed itsin vitrobioactivity on Arabidopsis seedlings. Similarly, but to a different extent, three types of poplar CLV3-related peptides caused root meristem consumption, phyllotaxis disorder, anthocyanin accumulation and failure to enter the bolting stage. In comparison, application of two poplar TDIF-related peptides led to root length promotion in a dose-dependent manner with an even stronger effect observed for poplar TDIF-like peptide than TDIF. Next, we constructedCaMV35S:PtCLEtransgenic plants for each of the ninePtCLEgenes. Phenotypic abnormalities exemplified by arrested shoot apical meristem and abnormal flower structure were found to be more dominant and severe in35S:PtCLV3and35S:PtCLV3-like2lines than in the35S:PtCLV3-like1line. Disordered vasculature was detected in both stem and hypocotyl cross-sections in Arabidopsis plants over-expressing poplarTDIF-relatedgenes with the most defective vascular patterning observed forTDIF2and twoTDIF-likegenes. Phenotypic difference consistently observed in peptide application assay and transgenic analysis indicated the functional diversity of nine poplarPtCLEgenes under investigation. This work represents the first report on the functional analysis ofCLEgenes in a tree species and constitutes a basis for further study of the CLE peptide signalling pathway in tree development. PMID:26912800

  9. Pollution at Lake Mariut

    International Nuclear Information System (INIS)

    Lake Mariut, south Alexandria, Egypt suffered in the recent decades from intensive pollution as a result of a continuous discharge of huge amounts of agriculture wastewater that contains a large concentration of the washed pesticides and fertilizers in addition to domestic and industrial untreated wastewater. The over flow from the lake is discharged directly to the sea through El-Max pumping station via EI-Umum drain. Lake Mariout is surrounded by a huge number of different industrial activities and also the desert road is cutting the lake, this means that a huge number of various pollutants cycle through the air and settle down in the lake, by the time and during different seasons these pollutants after accumulation and different chemical interactions will release again from the lake to the surrounding area affecting the surrounding zone

  10. Origins of rainbow smelt in Lake Ontario

    Science.gov (United States)

    Bergstedt, Roger A.

    1983-01-01

    The first rainbow smelt (Osmerus mordax) to enter Lake Ontario were probably migrants from an anadromous strain introduced into New York's Finger Lakes. Since the upper Great Lakes were originally stocked with a landlocked strain from Green Lake, Maine, subsequent migration to Lake Ontario from Lake Erie makes Lake Ontario unique among the Great Lakes in probably having received introductions from two distinct populations.

  11. Boat Dwellers of Weishan Lake

    Institute of Scientific and Technical Information of China (English)

    JENNIFER; LIM

    1998-01-01

    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

  12. Hydrography - Lakes Assessments - Non Attaining

    Data.gov (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...

  13. Benthic diatoms in lakes

    OpenAIRE

    Gottschalk, Steffi

    2014-01-01

    In order to protect or improve surface waters ecosystem response to pressures needs to be quantified. Diatoms are frequently used for assessing ecological status in streams and for reconstructing water quality of lakes. However, ecological status assessment of European lakes based on extant diatom assemblages is rare. The overall aim of this thesis is to facilitate the application of benthic diatoms in water quality assessment of boreal lakes, using methods developed for stream assessmen...

  14. Yellowstone Lake Nanoarchaeota

    OpenAIRE

    Scott eClingenpeel; Jinjun eKan; Rich eMacur; Tanja eWoyke; Dave eLovalvo; John eVarley; Inskeep, William P.; Kenneth eNealson; Tim eMcDermott

    2013-01-01

    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 ...

  15. A lake without water

    OpenAIRE

    Nagoli, Joseph

    2016-01-01

    This thesis explores the human-environment interaction within the climate-sensitive socio-ecological system of Lake Chilwa in Malawi. It uses the livelihoods framework to analyse various coping strategies to resource scarcity due to lake recessions. The main aim is to understand the processes by which decision-making takes place and the influence of various agents of change on coping with environmental shocks, i.e. water recessions. Lake Chilwa undergoes periodic water recessions with up to t...

  16. Marine lakes of Indonesia

    OpenAIRE

    Becking, Leontine Elisabeth

    2012-01-01

    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 regions in Indonesia were studied: Berau (East Kalimantan) and Raja Ampat (West Papua). The following questions were addressed: 1. What are the different types of marine lakes in Indonesia? 2. Are ...

  17. The Key Lake project

    International Nuclear Information System (INIS)

    Key Lake is located in the Athabasca sand stone basin, 640 kilometers north of Saskatoon, Saskatchewan, Canada. The three sources of ore at Key Lake contain 70 100 tonnes of uranium. Features of the Key Lake Project were described under the key headings: work force, mining, mill process, tailings storage, permanent camp, environmental features, worker health and safety, and economic benefits. Appendices covering the historical background, construction projects, comparisons of western world mines, mining statistics, Northern Saskatchewan surface lease, and Key Lake development and regulatory agencies were included

  18. Great Lakes Literacy Principles

    Science.gov (United States)

    Fortner, Rosanne W.; Manzo, Lyndsey

    2011-03-01

    Lakes Superior, Huron, Michigan, Ontario, and Erie together form North America's Great Lakes, a region that contains 20% of the world's fresh surface water and is home to roughly one quarter of the U.S. population (Figure 1). Supporting a $4 billion sport fishing industry, plus $16 billion annually in boating, 1.5 million U.S. jobs, and $62 billion in annual wages directly, the Great Lakes form the backbone of a regional economy that is vital to the United States as a whole (see http://www.miseagrant.umich.edu/downloads/economy/11-708-Great-Lakes-Jobs.pdf). Yet the grandeur and importance of this freshwater resource are little understood, not only by people in the rest of the country but also by many in the region itself. To help address this lack of knowledge, the Centers for Ocean Sciences Education Excellence (COSEE) Great Lakes, supported by the U.S. National Science Foundation and the National Oceanic and Atmospheric Administration, developed literacy principles for the Great Lakes to serve as a guide for education of students and the public. These “Great Lakes Literacy Principles” represent an understanding of the Great Lakes' influences on society and society's influences on the Great Lakes.

  19. Jackson Lake Limnology

    OpenAIRE

    Wurtsbaugh, Wayne

    2014-01-01

    The limnology of Jackson Lake has been studied very little, despite the fact that it is the uppermost large lake on the headwaters of the Snake River, one of the larger rivers in the country (Hayden 1969). It is also an important fishery, largely for introduced lake trout. In 2014 we took our incoming graduate students to the Jackson Hole and one part of this introductory course focused on the limnology of the lake. Prior to the arrival of the students, a nutrient addition bioassay was initia...

  20. Paleolimnology of Kluane Lake

    OpenAIRE

    Brahney, Janice Lynne

    2007-01-01

    Causes and consequences of late Holocene fluctuations of Kluane Lake in Yukon Territory have been reconstructed from several sediment cores. In the last 5000 years the level of Kluane Lake has varied from ~27 m below its present level to 12 m above, primarily due to changes in inputs of water from Slims and Duke rivers. Discharge form the Slims River catchment into Kluane Lake is associated with glacial advances. During periods when neither Duke nor Slims rivers flowed into Kluane Lake, the l...

  1. Lake Qinghai, China

    OpenAIRE

    Yu, Junqing

    2006-01-01

    Lake Qinghai lies on the northeast corner of the Tibet-Qinghai Plateau. It is a closed-basin lake and the largest water body in China with an area of about 4437 km2. Aragonite and calcite are precipitating from the brackish (TDS 12-14 g/l) and alkaline water (pH 9.1-9.4). Summer rainfall exerts an important control on changes in both lake level and water chemistry. As the lake today is situated at the outer margin of the Asian summer monsoon, past climate changes were sensitively documented i...

  2. Examining indirect effects of lake trout recovery

    Science.gov (United States)

    With the recovery of lake trout populations in Lake Superior, there are indications of decreased forage fish abundance and density-dependence in lake trout. In Lake Superior, lean lake trout historically occupied depths trout occupied depths > 60 m...

  3. Un siècle de détournements 

    Directory of Open Access Journals (Sweden)

    Isabelle Boof-Vermesse

    2011-06-01

    Full Text Available Ecrit trois ans après son pamphlet A Century of Dishonor (1881,  Ramona devait être l’équivalent pour la question indienne de Uncle Tom’s Cabin (1852. Mais la stratégie de Jackson n’a pas fonctionné comme prévu et la réception de ce roman sentimental fut et reste basée sur une « mélecture » (« misreading » : attirés par le monde merveilleux du rancho, lui-même pâle reflet du glorieux passé des missions, les lecteurs yankees n’ont jamais été plus loin que cette fascination pour la culture espagnole-mexicaine, catholique, rurale et aristocratique suscitée par le texte, qui emprunte aux conventions de la romance et du carnet de voyage. Si Ramona avait initialement pour projet de dénoncer le comportement des envahisseurs nord-américains pour inspirer de la compassion envers leurs victimes et exiger un changement de politique, la position commune des Anglos et des Mexicains vis-à-vis des Indiens a encouragé une identification fonctionnant à l’encontre de celle voulue par l’auteur (qui n’est pas forcément celle du texte. Les éléments gothiques à la fois thématiques (la belle captive, le couvent, l’enlèvement…, narratifs (le pittoresque et le « word-painting » et idéologiques sont bel et bien activés dans Ramona, mais en quelque sorte à l’envers. De plus, la formule est compliquée par la triangulation : entre bourreau anglo et victime indienne s’interpose la figure intermédiaire du noble mexicain. La présente étude se concentre sur cette figure et  son traitement métonymique, l’Arcadie du rancho, pour montrer comment la mélecture de Ramona déborde dans la culture californienne et devient de la récupération. Ainsi dès le 19ème siècle l’exploitation du roman contribue à la  construction de l’identité régionale en inventant de toutes pièces  des manifestations de type « culte »  (tourisme culturel et pèlerinage sur les lieux du roman, Ramona Pageants

  4. Book review of Bourquin, Laurent, Philippe Hamon, Alain Hugon, and Yann Lagadec (eds.). La politique par les armes: conflits internationaux et politisation (XVe-XIXe siècle). Histoire. Rennes: Presses universitaires de Rennes, 2014. 324 p. ISBN 9782753528772.

    OpenAIRE

    Dhondt, Frederik

    2015-01-01

    Book review of Bourquin, Laurent, Philippe Hamon, Alain Hugon, and Yann Lagadec (eds.). La politique par les armes : conflits internationaux et politisation (XVe-XIXe siècle). Histoire. Rennes: Presses universitaires de Rennes, 2014. 324 p. ISBN 9782753528772.

  5. Great Lakes: Great Gardening.

    Science.gov (United States)

    New York Sea Grant Inst., Albany, NY.

    This folder contains 12 fact sheets designed to improve the quality of gardens near the Great Lakes. The titles are: (1) "Your Garden and the Great Lakes"; (2) "Organic Gardening"; (3) "Fruit and Vegetable Gardening"; (4) "Composting Yard Wastes"; (5) "Herbicides and Water Quality"; (6) "Watering"; (7) "Soil Erosion by Water"; (8) "Soil…

  6. Marine lakes of Indonesia

    NARCIS (Netherlands)

    Becking, Leontine Elisabeth

    2012-01-01

    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

  7. Beautiful Yamzhog Yumco Lake

    Institute of Scientific and Technical Information of China (English)

    SAMXUBAGONJORYUNDAIN

    2003-01-01

    Yamzhog Yumco Lake is one of the three sacred lakes in Tibetan snow area, located in Nangarze County of Shannan Prefecture.Nangarze County is a semi-agricultural and semi-pastoral district, and because the husbandry prioritizes the agriculture,it was named "Yamzhog (meadow landin high mountains)". The Yamzhog

  8. Lake Wobegon Dice

    Science.gov (United States)

    Moraleda, Jorge; Stork, David G.

    2012-01-01

    We introduce Lake Wobegon dice, where each die is "better than the set average." Specifically, these dice have the paradoxical property that on every roll, each die is more likely to roll greater than the set average on the roll, than less than this set average. We also show how to construct minimal optimal Lake Wobegon sets for all "n" [greater…

  9. Le tournant du positivisme à la phénoménologie dans la philosophie danoise du Xxe siècle

    DEFF Research Database (Denmark)

    Kemp, Peter

    2004-01-01

    Le tournant du positivisme à la phénomenologie dans la philosophie danoise du XXe siècle The turn from Positivism to Phenomenology in Danish Philosophy at the XXth Century The author presents a detailed overview of the counterattacks forwarded against positivism in Denmark, beginning the 1950s. R...... technology and ethics. This rich panorama, spanning more than a century of philosophy in Denmark, concludes with a sketch of a promising revival of philosophical inquiry.......Le tournant du positivisme à la phénomenologie dans la philosophie danoise du XXe siècle The turn from Positivism to Phenomenology in Danish Philosophy at the XXth Century The author presents a detailed overview of the counterattacks forwarded against positivism in Denmark, beginning the 1950s...

  10. Représentations et croyances dans l’Arabie du VIIe siècle : les djinns dans le Coran

    OpenAIRE

    Tengour, Esma Hind

    2015-01-01

    Pour une histoire des mentalités : questions de méthode Envisager l’histoire des mentalités d’un milieu humain du passé, celui des hommes de l’Arabie au début du VIIe siècle, a consisté, pour nous, à travailler à partir de l’anthropologie historique. Ce choix s’est imposé dès lors qu’il se justifiait à la fois par l’adoption d’une problématique précise sur le sujet, les djinns dans le Coran, et par le contexte du VIIe siècle naissant, période durant laquelle la parole coranique a été révélée ...

  11. Corps et genre des émotions dans l’hagiographie féminine au XIIIe siècle

    OpenAIRE

    Boquet, Damien

    2014-01-01

    La piété chrétienne au XIIIe siècle en Occident est marquée par une entrée en scène des laïcs, plus particulièrement des femmes, ainsi que par une forte valorisation des émotions dans la dévotion. Or, les historiens ont peu questionné l’association de ces deux mouvements, comme s'ils allaient naturellement de pair. Au contraire, le succès d’une mystique affective féminine au XIIIe siècle n’a rien d’attendu, dans la mesure où les schémas de dévotion qui se diffusent ont été élaborés aux XIe-XI...

  12. Style ou pragmatisme ? Le débat sur l’architecture du xixe siècle aux Pays-Bas

    OpenAIRE

    van Leeuwen, Wilfred

    2013-01-01

    Aux Pays-Bas, sans doute plus qu’ailleurs, l’arrogance du modernisme éclipsa pendant longtemps la richesse et les qualités particulières de l’architecture du xixe siècle. La sobriété et l’austérité néerlandaise, que le modernisme incarnait avec tant d’enthousiasme, faisaient peu de cas du « siècle de l’ornement ». L’étude de cette période se montra donc hésitante : il fallut attendre les années 1990 pour disposer de travaux scientifiques d’une certaine envergure et de monographies d’architect...

  13. Recherches sur l’apocalyptique syriaque et byzantine au viie siècle : la place de l’Empire romain dans une histoire du salut

    Directory of Open Access Journals (Sweden)

    Pablo Ubierna

    2009-02-01

    Full Text Available L’occupation perse et la littérature apocalyptiqueLa perception des événements militaires du début du viie siècle – d’abord l’occupation perse et ensuite la guerre arabe – n’est pas écartée, chez les contemporains, de la vision d’un empire, l’empire byzantin, secoué par de fortes controverses religieuses.La préoccupation intellectuelle à propos de la situation de l’Empire fut extrêmement marquée au commencement du viie siècle. Une vie anonyme de l’empereur Maurice inclut un récit de sa mort d...

  14. François Walter, 2008, Catastrophes. Une histoire culturelle. XVIe- XXIe siècle, Paris, Seuil, 380 p.

    Directory of Open Access Journals (Sweden)

    Stéphane Callens

    2008-09-01

    Full Text Available François Walter est professeur d’histoire à l’université de Genève et propose dans l’ouvrage « Catastrophes » édité aux éditions du Seuil une histoire culturelle des peurs collectives du XVIème au XXIème siècle. L’ouvrage comprend 12 chapitres répartis en trois grandes parties. Une première partie affirme que « les sociétés anciennes ne sont pas des sociétés de la catastrophe ». Une deuxième partie, « Aléas naturels et menaces sociales », porte sur la période d’un XIXème siècle élargi, du mil...

  15. Avant-propos. Problèmes de l’économie maritime bretonne (xvie-xviiie siècle)

    OpenAIRE

    2013-01-01

    « S’ils ont les navires, nous avons les ailes ».G. Montchrestien,Traité d’Oeconomie politique, Paris,1615, édition Funck-Brentano, Paris,1889, p. 66. Dans cet Ouest français, qui, du xvie au xviiie siècle, semble être le vrai centre de gravité de l’économie française, le commerce maritime breton occupe une place de choix. Il ne prend cependant de réelle importance que vers le xive siècle. Sans doute le sel de la baie de Bourgneuf et de la presqu’île de Guérande a-t-il attiré très tôt les navi...

  16. Dan Jaffé, Jésus sous la plume des historiens juifs du xxe siècle. Approche historique, perspectives historiographiqu

    OpenAIRE

    Cuvillier, Elian

    2012-01-01

    Dans le domaine très fourni des publications consacrées au Jésus de l’histoire, le présent ouvrage propose un angle d’approche original : l’apport des historiens juifs. Il témoigne ainsi d’une évolution significative de la recherche et de l’importance des travaux publiés depuis un siècle par les savants juifs. L’auteur suit un développement chronologique dont rendent compte les neuf chapitres qui composent l’ouvrage : 1. Les historiens juifs et Jésus au xixe siècle (Joseph Salvador et Heinric...

  17. José-Luis Diaz (dir.), « Les choses », Le Magasin du XIXe siècle, n°2, 2012

    OpenAIRE

    Muller, Caroline

    2013-01-01

    La vitrine de ce « Magasin du XIXe siècle » attire l’œil du passant, qui pousse la porte et entre dans le deuxième numéro de cette nouvelle revue proposée par la Société des études romantiques et dix-neuviémistes. « Les choses » présentées semblent d’abord hétéroclites : plusieurs entretiens, un dossier pluridisciplinaire sur les objets du XIXe siècle, une série d’articles autour de la façon dont les contemporains se représentent cette époque (expositions, arts scéniques). Une rubrique « arch...

  18. Cornaus et maisons de la lande bordelaise au prisme des premières sources écrites (XVIIIe-XVIe siècle)

    OpenAIRE

    Mouthon, Fabrice

    2015-01-01

    Les landes de Gascogne sont un pays fascinant. Aujourd'hui premier massif forestier d'Europe, elles constituaient, jusqu'au xixe siècle une sorte de désert semi-marécageux s'étendant des portes de Bordeaux à l'Océan. Au xiie siècle, le pèlerin de Saint-Jacques parle d'un pays aux villages rares où l'on ne trouve pas de pain mais des porcs, du miel, du mil et du panis en abondance. Jadis, les grandes dunes boisées ouvertes aux droits d'usage des habitants de Lesparre, de La Teste ou de Biscaro...

  19. La connaissance et le savoir-faire de la société indienne au Yucatan (XVIIe siècle)

    OpenAIRE

    OJEDA, Pedro MIRANDA; NEGROE SIERRA, Genny M.

    2015-01-01

    Au XVIIe siècle il n’existait pas de documents écrits au Yucatan et à cause de cette absence les habitants possédaient un outillage de savoirs sur la flore, la faune et la géologie. Les périodes précédentes ont produit un mélange culturel des peuples qui habitaient dans cette région. Un mélange de savoirs a alors été composé de connaissances millénaires des Mayas, des esclaves africains et des conquérants européens. Le XVIIe siècle est pour cela considérée comme la période pendant laquelle l...

  20. Reforestation et stockage du carbone au XXème siècle sur le versant sud du Mont-Lozère (France)

    OpenAIRE

    Martin, Claude; Didon-Lescot, Jean-François; Lhuillier, Sylvain; Usselmann, Pierre

    2002-01-01

    L'étude s'appuie sur les travaux réalisés sur le Bassin Versant de Recherche et Expérimental (BVRE) du Mont-Lozère. Les parcelles étudiées sont situées en terrain granitique, sous un climat de type méditerranéen montagnard, à des altitudes comprises entre 1100 et 1500 m. La dénudation des versants a atteint son maximum au milieu du XIXème siècle, époque où l'élevage ovin avec transhumance était particulièrement actif. La déprise rurale amorcée à la fin du XIXème siècle, a permis l'extension d...

  1. Lake metabolism scales with lake morphometry and catchment conditions

    DEFF Research Database (Denmark)

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

    2012-01-01

    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 <0); (3) daily variability of GPP...... 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...

  2. Iron Speciation in the Subtropical Waters East of New Zealand using Multi Detection Window CLE-AdCSV Titrations.

    Science.gov (United States)

    Chandrasekhar, Anoop; Sander, Sylvia; Milnes, Angie; Boyd, Philip

    2015-04-01

    Iron plays a significant role in the ocean productivity as a micro nutrient that facilitates the growth of marine phytoplankton and microbes. The bioavailability of iron in the ocean depends on it speciation. Iron is bio available in its dissolved form and about 99.9% of dissolved iron in seawater is organically complexed with natural ligands. The competitive ligand equilibration - adsorptive cathodic stripping voltammetry (CLE-AdCSV) is the widely used technique to examine Fe speciation. The method has its own limitations. The analytical window employed in this technique has a distinct impact on Fe speciation results (Buck, Moffett et al. 2012). Recently, (Pizeta, Sander et al. in preparation) have shown that the accuracy of complexometric titrations improve if multiple analytical windows (MAW) are solved as a united dataset. Several programs are now available that enable this approach with the KMS (Kineteql.xls , Hudson 2014), which is based on an Excel application based on speciation calculation (Hudson, Rue et al. 2003, Sander, Hunter et al. 2011), being one of them. In the present work, the unified MAW data analysis method is applied to determine iron speciation by CLE-AdCSV with salicyl aldoxime (SA) (Abualhaija and van den Berg 2014) in real seawater samples from the Spring bloom FeCycle III voyage, which took place in an anticyclonic eddy in subtropical waters east of New Zealand in spring 2012. Two different analytical windows (5 and 15µM SA) were applied to samples from depth profiles taken during this cruise. The data obtained was analysed using the program KMS (Kineteql.xls). Most samples only returned one Fe-binding ligands class. Higher ligand concentrations were observed in the upper water column and the stability constants were above 22 (e.g. 22.25 ± 0.21 for station 63). Our results will be discussed in the context of microbial community distribution as well as other biogeochemical parameters. Abualhaija, M. M. and C. M. G. van den Berg (2014

  3. Lake whitefish and lake herring population structure and niche in ten south-central Ontario lakes

    Science.gov (United States)

    Carl, Leon M.; McGuiness, Fiona

    2006-01-01

    This study compares simple fish communities of ten oligotrophic lakes in south-central Ontario. Species densities and population size structure vary significantly among these lake communities depending on fish species present beyond the littoral zone. Lake whitefish are fewer and larger in the presence of lake herring than in their absence. Diet analysis indicates that lake whitefish shift from feeding on both plankton and benthic prey when lake herring are absent to a primarily benthic feeding niche in the presence of lake herring. When benthic round whitefish are present, lake whitefish size and density decline and they move lower in the lake compared to round whitefish. Burbot are also fewer and larger in lakes with lake herring than in lakes without herring. Burbot, in turn, appear to influence the population structure of benthic coregonine species. Lower densities of benthic lake whitefish and round whitefish are found in lakes containing large benthic burbot than in lakes with either small burbot or where burbot are absent. Predation on the pelagic larvae of burbot and lake whitefish by planktivorous lake herring alters the size and age structure of these populations. As life history theory predicts, those species with poor larval survival appear to adopt a bet-hedging life history strategy of long-lived individuals as a reproductive reserve.

  4. Hydrogeologic Controls on Lake Level at Mountain Lake, Virginia

    OpenAIRE

    Roningen, Jeanne Marie

    2011-01-01

    Mountain Lake in Giles County, Virginia, has a documented history of severe natural lake-level changes involving groundwater seepage [Jansons, 2004] that extend over the past 4200 years [Cawley, 1999], and as of December 2010 the lake was about 2% full by volume. Situated in the Valley and Ridge physiographic province on the axis of a plunging anticline and straddling contacts between three upper Ordovician and lower Silurian formations, the lake is one of two natural lakes in Virginia. ...

  5. The ecology of Bassenthwaite Lake (English Lake District)

    OpenAIRE

    Thackeray, Stephen; Maberly, Stephen; Winfield, Ian

    2005-01-01

    Bassenthwaite Lake is, in many ways, different from the other major lakes in the English Lake District: it is the most northerly, the shallowest, has the largest catchment and the shortest mean retention time. There is also considerable temporal variation in lake level. This article summarises the limnological features of Bassenthwaite Lake, the catchment and physical characteristics before describing the water chemistry, phytoplankton, macrophytes, zooplankton, invertebrates, fish, mammal an...

  6. Yellowstone Lake Nanoarchaeota

    Directory of Open Access Journals (Sweden)

    Scott eClingenpeel

    2013-09-01

    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.

  7. LAKE RESTORATION BY DILUTION: MOSES LAKE, WASHINGTON

    Science.gov (United States)

    Dilution water, low in macronutrients, was added to Moses Lake on three occasions in 1977 and once in 1978 during the spring-summer period. The addition resulted in reducing the annual average inflow concentration of phosphorus from about 130-140 micrograms/l to 100 micrograms/l....

  8. Valuing Great Lakes Beaches

    OpenAIRE

    Song, Feng; Lupi, Frank; Kaplowitz, Michael D.

    2010-01-01

    This study aims to estimate the recreational use values of Great Lakes beaches using a two-level nested logit Random Utility Model. The choice set contains all 594 public Great Lakes beaches in Michigan. Beach sites located in the same Great Lakes water body are arranged into a nest. The trip data were obtained from a 2006 online survey using a web-panel of Michigan adults accessed through Survey Sampling International (SSI). The variables that affect the amount of utility derived from a part...

  9. About medicine and the arts. Charcot and French literature at the fin-de-siècle.

    Science.gov (United States)

    Koehler, P

    2001-03-01

    The relationship between medicine and the arts, literature in particular, has many aspects. One of the most obvious relations is the use of literature as a source for historical studies. Jean-Martin Charcot and his school often appear in French literature at the end of the 19th century. Several aspects will be highlighted in this study, including (1) the ideas about degenerative diseases in the work of Emile Zola, the main author of the naturalistic movement; (2) decadence and spiritism in two "transitional" novels by Joris Karl Huysmans, who, once supporter of the naturalistic movement, changed his ideas following observations of disease and cure that could not be explained in a scientific way. Charcot's work on hysteria and hypnosis, as well as Brown-Séquard's rejuvenation experiments with testicular extracts played an important role with this respect; (3) Charcot's relationship with the Daudets, in particular his treatment of Alphonse's tabes dorsalis and the ambivalent attitude of his son Léon Daudet towards Charcot; (4) the influence of the lectures at the Salpêtrière on the work of Guy de Maupassant, who attended the lessons in the mid-1880s. The reading of novels and biographies of these authors provides a part of the social context and the cultural atmosphere in Paris at the "fin-de-siècle" when Charcot and his school played an important role in medicine. Moreover, it shows the influence of medicine and science on society as recorded by writers. PMID:11446262

  10. Les livres de recettes « francisés » au Mexique au XIXe siècle

    Directory of Open Access Journals (Sweden)

    Sarah Bak-Geller Corona

    2008-05-01

    Full Text Available L’apparition des premiers livres de cuisine au Mexique - publiés par des maisons d’édition françaises spécialisées en ouvrages en espagnol - marque le début de l’histoire de la cuisine mexicaine. Cet événement s’inscrit par ailleurs dans une histoire plus large : celle de la construction de l’État-nation, entre nationalisme et cosmopolitisme. L’article s’intéresse aux idéaux de nation et de cuisine cohabitant dans deux des livres de recettes francisés du XIXe siècle au Mexique : l’Arte novísimo de cocina et le Nuevo cocinero americano/mexicano en forma de diccionario.French-fashioned Mexican recipe books in the 19th century. Globalization and construction of a national culinary modelThe first Mexican recipe books were published in the early 1830’s by French publishing houses specialized in Spanish written books. This article deals with the different nationalistic and cuisine models in two French-fashioned Mexican recipe books -the Arte novísimo de cocina and the Nuevo cocinero americano/mexicano en forma de diccionario- and their relationship with the nation-building context in nineteenth century Mexico.

  11. Leadership in Modern Times. Reflections on Yves Cohen’s Le siècle des chefs

    Directory of Open Access Journals (Sweden)

    Moritz Föllmer

    2014-11-01

    Full Text Available This review article discusses Yves Cohen’s recent book Le siêcle des chefs: Une histoire transnationale du commandement et de l’autorité (1890-1940. Cohen provides an extensive analysis of discourses on leadership in France, the Soviet Union, Germany and the United States. He also studies how leadership was practiced, by French and Soviet factory directors as well as by Stalin himself. While giving due credit to the scope and sophistication of his book, the review article asks whether Cohen’s focus on scientific discourses and highly structured organisations leaves sufficient room for contingency. It argues that interwar political leadership in interwar Europe was not least about seeing and seizing opportunities in unforeseeable circumstances, often thriving on a positive fascination with crises and states of emergency. It also points out that, contrary to what the combined title and subtitle suggest, “le siècle des chefs” hardly ended in 1939, and that the quest for leadership continues to preoccupy present-day societies, cultures and polities.

  12. La réforme druze dans les montagnes syriennes au ixe/xve siècle

    Directory of Open Access Journals (Sweden)

    Wissam Halabi-Halawi

    2014-11-01

    Full Text Available Au ixe/xve siècle, dans les montagnes syriennes, un nouveau druzisme se serait formé, celui de l’émir al-Sayyid (m. 884/1479, dont les fondements ont longtemps été considérés comme purement spirituels. Or la lecture des sources permet d’attribuer à une telle œuvre un contenu plus riche et des enjeux plus ambitieux : al-Sayyid avait un projet sociétal, religieux et juridique empreint d’une idéologie forte. Le milieu montagnard était néanmoins divisé autour de cette réforme et les partisans du maître s’opposaient aux chefs locaux proches du pouvoir central. Ce qui s’apparentait à une délivrance pour les pauvres s’est avéré être une menace pour les puissants ; là où certains contemporains voyaient une islamisation, d’autres observaient le rétablissement du druzisme originel. En définitive, la réforme sayyidienne comporte un projet politique qui s’adresse aux plus modestes parmi la société rurale, dans une Syrie ralentie économiquement à la veille du déclin du régime mamelouk.

  13. Great Lakes Ice Charts

    Data.gov (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...

  14. Lake Transect : 1986

    Data.gov (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...

  15. Lake Transect : 1988

    Data.gov (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 1988. Lists of the plant species found...

  16. Lake Transect : 1987

    Data.gov (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 1987. Lists of the plant species found...

  17. Lake Transect : 1990

    Data.gov (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 1990. Lists of the plant species found...

  18. Lake Transect : 1989

    Data.gov (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...

  19. Lake Mason trip report

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This document is a summary of the August 31, 1998 trip to Lake Mason to review the hydrology, current conditions, habitat and wildlife. This site visit occurred due...

  20. History of Lake Andes

    Data.gov (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...

  1. Lake Level Reconstructions

    Data.gov (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...

  2. Halls Lake 1990

    Data.gov (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...

  3. Chase Lake Wetland Management District, Chase Lake National Wildlife Refuge, Chase Lake Prairie Project: Annual narrative report: 1997

    Data.gov (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...

  4. Archaea in Yellowstone Lake

    OpenAIRE

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

    2011-01-01

    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 ...

  5. Integrated Lake Management Project

    OpenAIRE

    Goverment of Uganda; Department for International Development (DFID) of the UK Government

    2007-01-01

    In 1999, the Integrated Co-management of Lakes through Beach Management Units project was started in an effort to implement a new approach to the management of lake resources in Uganda. The main components of this plan involved decentralization, local community management, and improving the livelihood of the poor. In order to finance the management of these areas, the Beach Management Units (BMU's) are charging user fees to those individuals who obtain benefit from the natural resources. Thes...

  6. Phytoplankton of Lake Kivu

    OpenAIRE

    Sarmento, Hugo; Darchambeau, François; Descy, Jean-Pierre

    2012-01-01

    This chapter reviews taxonomic composition, biomass, production and nutrient limitation of the phytoplankton of Lake Kivu. Present Lake Kivu phytoplankton is dominated by cyanobacteria – mainly Synechococcus spp. and thin filaments of Planktolyngbya limnetica – and by pennate diatoms, among which Nitzschia bacata and Fragilaria danica are dominant. Seasonal shifts occur, with cyanobacteria developing more in the rainy season, and the diatoms in the dry season. Other groups present are cryptop...

  7. Resilience and Restoration of Lakes

    Directory of Open Access Journals (Sweden)

    Kathryn L. Cottingham

    1997-06-01

    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.

  8. Is Lake Chabot Eutrophic?

    Science.gov (United States)

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

    2013-12-01

    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

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

    Data.gov (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. Lake Morphometry for NHD Lakes in Ohio Region 5 HUC

    Data.gov (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...

  11. Lake Morphometry for NHD Lakes in Tennessee Region 6 HUC

    Data.gov (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. Lake Morphometry for NHD Lakes in California Region 18 HUC

    Data.gov (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...

  13. Winter Lake Breezes near the Great Salt Lake

    Science.gov (United States)

    Crosman, Erik T.; Horel, John D.

    2016-05-01

    Case studies of lake breezes during wintertime cold air pools in Utah's Salt Lake Valley are examined. While summer breezes originating from the Great Salt Lake are typically deeper, of longer duration, and have higher wind speeds than winter breezes, the rate of inland penetration and cross-frontal temperature differences can be higher during the winter. The characteristics of winter breezes and the forcing mechanisms controlling them (e.g., snow cover, background flow, vertical stability profile, clouds, lake temperature, lake sheltering, and drainage pooling) are more complex and variable than those evident in summer. During the afternoon in the Salt Lake Valley, these lake breezes can lead to elevated pollution levels due to the transport of fine particle pollutants from over the Great Salt Lake, decreased vertical mixing depth, and increased vertical stability.

  14. Meteotsunami in Lake Michigan

    Science.gov (United States)

    Wu, C.; Bechle, A.; Schwab, D. J.; Anderson, E. J.; Roebber, P. J.

    2012-12-01

    Meteotsunamis, or meteorological induced tsunamis, are meteorological in origin but exhibit long-period tsunami characteristics. Both meteotsunamis and seismic tsunamis have wave periods of 2 minutes to 2 hours and undergo resonant amplification that transforms relatively small waves in the open water into destructive forces at the coast. There are a number of amplification mechanisms including Proudman resonance, edge wave Greenspan resonance, as well as shoaling and harbor resonance. In this talk, we discuss several incidences of meteotsunamis in the Great Lakes. In Lake Michigan, an unexpected and destructive meteotsunami event occurred on June 26, 1954 when a 3 meter high wave struck the Chicago waterfront, resulting in seven fatalities. Ten days later on July 6, 1954, another meteotsunami event in southern Lake Michigan resulted in edge waves in excess of 1 m height. Nevertheless, these two events were generated by storms of vastly different size and propagation direction. More recently, in 2008 at least 25 meteotsunamis events with amplitudes of to 30 ~ 45 cm were observed in several major Lake Michigan harbors and were correlated with high-frequency pressure fronts passing along the west coast of Lake Michigan. Historical water level and meteorological records are analyzed to determine the mechanisms responsible for these meteotsunami events. Finally, a three-dimensional hydrodynamic model is employed to simulate select events to further explore in detail the possible meteotsunami mechanisms in the Great Lakes. Our ultimate goal is to provide real-time warning system to assess the coastal hazard and risk areas associated with meteotsunamis in the Great Lakes.

  15. Gilles de la Tourette's criminal women: the many faces of fin de siècle hypnotism.

    Science.gov (United States)

    Bogousslavsky, Julien; Walusinski, Olivier

    2010-09-01

    Gilles de la Tourette is now known for the disease which now bears his name, but his activities in the management of hysterics and in hypnotism, which gained him most of his lifetime reputation, have been largely forgotten. As one of the closest followers of Jean-Martin Charcot, he always remained faithful to his mentor's views, and was one of the most vehement defenders of La Salpêtrière school during the quarrel with Hippolyte Bernheim and the Nancy school on the question of the specificity of hypnotic susceptibility in hysteria. This controversy became critical during medico-legal assessment of crimes supposedly committed under hypnotic suggestion. Gilles de la Tourette's involvement in criminal hypnotism was striking, as shown by his own experiments, the most famous of which being his suggested poisoning of a colleague by Blanche Wittman, the celebrated Charcot's hysteric patient in the 1887 Brouillet's painting. Gilles de la Tourette also acted as expert in murder trials, and his Epilogue in the Gouffé's trunk case, where he affirmed that no murder in real life could be due to hypnotism, and considered that Gabrielle Bompard, the murderer's accomplice, was not under hypnotic suggestion, had a considerable impact. Finally, he was confronted to the issue of murder under hypnotism in his private life, since in 1893, a former patient, Rose Kamper, came and shot him in the head at his home, claiming that hypnotism sessions had changed her own person, and that she had been hypnotized "at distance". These acts from three very different "hysterical" women highlight the Salpêtrière's theories on hypnotism and their inner contradictions in the fin de siècle ambiance, a few years before Joseph Babinski renewed the concepts on hysteria. PMID:20413214

  16. Pierre Chommeliz, faux-monnayeur du désastre, au milieu du XVe siècle

    Directory of Open Access Journals (Sweden)

    Pierre Prétou

    2011-11-01

    Full Text Available Au milieu du XVe siècle, une lettre de rémission pardonne Pierre Chommeliz pour ses crimes de faux-monnayeur. La rhétorique royale, en s’appesantissant sur les malheurs subis par l’homme, ouvre une lecture désastreuse expliquant les contrefaçons de notre homme. Simultanément, l’archive livre un fonctionnement symptomatique des réseaux criminels de la fin du Moyen Âge, mais esquisse également les logiques de la répression royale. L’écriture du malheur de la vie du suppliant vient consolider la majesté monétaire du Valois démontrant ici que ce cas, s’il était propice à la répression féroce, l’était également à la grâce bienveillante. Parce qu’il était réputé détruire les hommes, au moins discursivement, le crime de faux-monnayage entrait dans les crimes supérieurs retenant toute l’attention du pouvoir royal.In the middle of the fifteenth century, a letter of pardon forgives Peter Chommeliz for his counterfeiting. Based on the misfortunes inflicted to the man, the letter opens a disastrous reading explaining the crime. Simultaneously, the archive delivers information about criminal networks in late middle ages. Thus, it also outlines the logic of royal repression: by interpreting the crime, the French chancery enhances the majesty of Valois in monetary cases.

  17. Le Yémen au xviie siècle : territoire et identités

    Directory of Open Access Journals (Sweden)

    Tomislav Klarić

    2011-12-01

    Full Text Available Au xviie siècle, le Ḥaḍramawt et le Yémen sont considérés comme des entités nettement distinctes. Géographiquement, le Ḥaḍramawt n´est pas perçu comme faisant partie du Yémen. Les frontières orientales de celui-ci sont constituées par la région de Yâfi‛ que l´on appelle également al-Mašriq ou Mašriq al-Yaman. Elles sont aussi déterminées en fonction des relations culturelles. L´occupation du Ḥaḍramawt pendant vingt ans par le pouvoir zaydite n´a pas rapproché ces deux contrées et n´a pas donné lieu à des échanges culturels plus approfondis. En général, pour l´élite savante de l´époque, l´appartenance à une ethnie ou à un territoire n´était que d´importance secondaire. Les différences d’importance majeure étaient d´ordre religieux. Les Ḥaḍramis adhérant au rite shaféite et les savants des Hautes-Terres au zaydisme, un gouffre idéologique séparait les uns des autres. La même indifférence régnait également entre les zaydites des territoires septentrionaux et les shaféites du Sud.

  18. Lake Michigan lake trout PCB model forecast post audit

    Science.gov (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...

  19. Mono Lake Excursion Reviewed

    Science.gov (United States)

    Liddicoat, J. C.; Coe, R. S.

    2007-05-01

    The Mono Lake Excursion as recorded in the Mono Basin, CA, has an older part that is about negative 30 degrees inclination and about 300 degrees declination during low relative field intensity. Those paleomagnetic directions are closely followed by greater than 80 degrees positive inclination and east declination of about 100 degrees during higher relative field intensity. A path of the Virtual Geomagnetic Poles (VGPs) for the older part followed from old to young forms a large clockwise loop that reaches 35 degrees N latitude and is centered at about 35 degrees E longitude. That loop is followed by a smaller one that is counterclockwise and centered at about 70 degrees N latitude and 270 degrees E longitude (Denham & Cox, 1971; Denham, 1974; Liddicoat & Coe, 1979). The Mono Lake Excursion outside the Mono Basin in western North America is recorded as nearly the full excursion at Summer Lake, OR (Negrini et al., 1984), and as the younger portion of steep positive inclination/east declination in the Lahontan Basin, NV. The overall relative field intensity during the Mono Lake Excursion in the Lahontan Basin mirrors very closely the relative field intensity in the Mono Basin (Liddicoat, 1992, 1996; Coe & Liddicoat, 1994). Using 14C and 40Ar/39Ar dates (Kent et al., 2002) and paleoclimate and relative paleointensity records (Zimmerman et al., 2006) for the Mono Lake Excursion in the Mono Basin, it has been proposed that the Mono Lake Excursion might be older than originally believed and instead be the Laschamp Excursion at about 40,000 yrs B.P. (Guillou et al., 2004). On the contrary, we favor a younger age for the Mono Lake Excursion, about 32,000 yrs B.P., using the relative paleointensity in the Mono Basin and Lahontan Basin and 14C dates from the Lahontan Basin (Benson et al., 2002). The age of about 32,000 yrs B.P. is also in accord with the age (32,000- 34,000 yrs B.P.) reported by Channell (2006) for the Mono Lake Excursion at ODP Site 919 in the Irminger Basin

  20. Great Lakes Environmental Database (GLENDA)

    Data.gov (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...

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

    Science.gov (United States)

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

    2016-06-01

    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. PMID:27104923

  2. The Lake Ohrid SCOPSCO project

    OpenAIRE

    Wagner, Bernd; Wilke, Thomas; Krastel , Sebastien; Zanchetta, Giovanni; Sulpizio, Roberto; Leng, Melanie J.; Francke, Alexander; Baumgarten, Henricke; Cvetkoska, Aleksandra; Giacco, Biagio; Lacey, Jack H.; Leicher, Niklas

    2015-01-01

    The ICDP SCOPSCO project at Lake Ohrid in Macedonia and Albania was one of the most successful lake drilling campaigns worldwide. Drilling took place from April to June 2013 and yielded more than 2000 m of sediments from four different sites in the lake. The maximum penetration was 569 m below lake floor and the overall recovery at all drill sites was > 95 %. Almost two years after the drilling operation, core opening and processing as well as biological and geological analyses ar...

  3. Special Stamps:Qinghai Lake

    Institute of Scientific and Technical Information of China (English)

    2002-01-01

    On July 20, 2002, the State Postal Bureau issued a set of three stamps picturing the Qinghai Lake shore, Bird Island, and the distant view.Located on the northeastern Qinghai-Tibet Plateau, in West China’s Qinghai Province, Qinghai Lake is 3,196 meters above sea level, and the biggest inland lake in China. Oils have been used to capture its magnificence.Bird Island on Qinghai Lake is a

  4. The Lake Albert light fishery

    OpenAIRE

    2009-01-01

    Fishing using light to attract fish (The light fishery) was introduced on Lake AIbert from Lake Victoria where it is used to catch mukene Rastrineobola argentea. The light fishery on Lake Albert targets ragoge brycinus nurse and mukene/muziri (Neobola bredoi), These species species now contribute to more than 50% of the catches from this lake. Ragoge and muziri were until the early 1990's not important in the commercial fishery but only served as food to the large predatory fis...

  5. HYDRODYNAMIC CHARACTERISTICS OF LAKE YANAKA

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    As part of a major effort to undersand and quantify the cnvironmental conditions in Lake Yanaka, the circulation patterns in Lake Yanaka were analyzed through the application of a three-dimensional hydrodynamic model. The model was validated with field observation, and then used to study the response of the lake to different forcing. The information on flow structures obtained in the present study is useful for further study of water quality in the lake.

  6. Une histoire nord-américaine à travers les archives de missionnaires amérindiens au XIXe siècle

    OpenAIRE

    Boutevin, Stéphanie

    2015-01-01

    L’histoire canadienne est généralement écrite sous deux angles : celui de la Nouvelle-France, dans ses dimensions commerciales, colonisatrices et religieuses, et celui de l’époque contemporaine, dans lequel les Autochtones n’occupent qu’une place marginale. Cet article présente ici une nouvelle façon d’aborder l’histoire des Amérindiens du Canada, au XIXe siècle, période relativement peu traitée par les historiens, à travers les archives des Autochtones ayant adopté la religion protestante. G...

  7. Hygiène et soins du corps dans les couvents de femmes du Poitou au XVIIIe siècle

    OpenAIRE

    Murphy, Gwénaël

    2005-01-01

    Si de nombreuses religieuses soignent les corps des pauvres et des malades à l’époque moderne, les soins qu’elles apportent à leurs propres corps demeurent mal connus. Trois couvents du diocèse de Poitiers permettent, grâce à leurs archives, de lever une partie du voile qui recouvre les pratiques de santé des religieuses au XVIIIe siècle. Les objets autorisés pour la toilette personnelle de ces femmes, retrouvés dans leurs cellules lors des inventaires de 1791-1792, permettent d’avoir un aper...

  8. « La Terre » de Zola, une histoire biogéochimique de la Beauce au XIXe siècle

    OpenAIRE

    Anglade, Juliette; Billen, Gilles; Garnier, Josette

    2015-01-01

    Le bassin de la Seine a longtemps constitué l’hinterland nourricier de l’agglomération parisienne. Aujourd’hui, les pollutions diffuses liées à l’usage de pesticides et engrais chimiques ainsi qu’à la concentration des ateliers d’élevage, entrainent notamment la fermeture de nombreux captages d’eau potable et l’eutrophisation des zones marines côtières. Cette étude vise à reconstituer une image biogéochimique de la Beauce, à la fin du XIXe siècle, entre grandes exploitations progressistes (20...

  9. Quatre hypothèses comparatives France-Pologne sur la violence antisémite au XXe siècle (Partie 2)

    OpenAIRE

    Zawadzki, Paul

    2003-01-01

    A travers quatre hypothèses complémentaires liant la violence antisémite aux modes de construction du politique, l'auteur se propose de rendre compte de deux situations fortement contrastées au XXè siècle : expansion de la violence antisémite physique en Pologne ; marginalisation de cette violence en France. La première hypothèse reprend la thèse de Norbert Elias liant l'intériorisation de la violence à la centralisation politique, en rappelant le caractère inversé des modes de construction d...

  10. Quatre hypothèses comparatives France-Pologne sur la violence antisémite au XXe siècle (Partie 1)

    OpenAIRE

    Zawadzki, Paul

    2003-01-01

    A travers quatre hypothèses complémentaires liant la violence antisémite aux modes de construction du politique, l'auteur se propose de rendre compte de deux situations fortement contrastées au XXè siècle : expansion de la violence antisémite physique en Pologne ; marginalisation de cette violence en France. La première hypothèse reprend la thèse de Norbert Elias liant l'intériorisation de la violence à la centralisation politique, en rappelant le caractère inversé des modes de construction d...

  11. Le roi est nu ou la tragique impuissance de l’écrivain face à l’éditeur au XIXe siècle

    OpenAIRE

    Mollier, Jean-Yves

    2014-01-01

    Un mythe traverse l’histoire littéraire canonique, façon Lagarde et Michard, amplifié par le vecteur principal de cette construction fictionnelle – l’école de la République – celui du pouvoir exceptionnel de l’écrivain au siècle dernier. Héritier des philosophes des Lumières, intellectuel avant la lettre, véritable artisan de la résistance à toutes les oppressions, il est parvenu à installer la France dans cet empyrée que contemplent avec admiration tous les autres peuples, celui de « nation ...

  12. « Un vrai système du monde » : conversion et autorité au XIXe siècle

    Directory of Open Access Journals (Sweden)

    Marie Blaise

    2012-01-01

    Full Text Available Dans le contexte de la relation, en apparence paradoxale, qu’entretient le XIXe siècle avec la religion, l’article montre comment la conversion fournit un principe esthétique de garantie de l’autorité et de genèse des formes littéraires.The article focuses on the paradoxical relationship that existed between religion, authority and authorship throughout the nineteenth century, to show how, either explicitly or implicitly, the paradigm of conversion provided an aesthetic principle that profoundly molded new forms of authorship as well as a new “philosophy of composition”.

  13. Un modèle de corégulation né au XIXème siècle

    OpenAIRE

    Lemercier, Claire

    2011-01-01

    Contrairement aux idées reçues, les exemples d'hybridation public-privé sont nombreux dans l'économie française au XIXe siècle. Peut-être plus encore que dans d'autres pays, l'État a fait appel aux représentants des différents secteurs de l'économie pour assumer des fonctions qu'il n'était pas en mesure d'exercer lui-même.

  14. Une communauté d’« agro-chasseurs » au xixe siècle dans la Haute Bénoué

    OpenAIRE

    Lesur, Joséphine; Langlois, Olivier

    2013-01-01

    Les vestiges fauniques extraits des sites de l’Extrême Nord du Cameroun, tant dans la plaine péritchadienne qu’au Diamaré, rendent compte d’une pratique ancienne de l’élevage des bovins et des ovicaprins qui semble avoir contribué depuis longtemps à l’alimentation carnée des populations de l’Extrême Nord du Cameroun. Les informations obtenues à Djaba, ajoutées à celles, déjà anciennes, relatives au site de Koyom (Tchad), montrent qu’au siècle passé, certaines communautés soudaniennes tiraient...

  15. A Lake Dream in Asia

    Institute of Scientific and Technical Information of China (English)

    Yang Wei

    2009-01-01

    @@ 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.

  16. Michigan: The Great Lakes State

    Science.gov (United States)

    McKay, Sandra Lee; La Luzerne-Oi, Sally

    2009-01-01

    Although Michigan is often called the "Wolverine State," its more common nickname is the "Great Lakes State." This name comes from the fact that Michigan is the only state in the United States that borders four of the five Great Lakes. Also referred to as the "Water Wonderland," Michigan has 11,000 additional lakes, 36,000 miles of streams, and…

  17. HYDROMETEOROLGICAL ANALISIS OF DOJRAN LAKE

    Directory of Open Access Journals (Sweden)

    VIOLETA GJESOVSKA

    2011-03-01

    Full Text Available Dojran Lake with its hydrological basin is a closed hydrologicalsystem with natural inflow of water to the lake, but no natural outflow. Rechargeof the lake is from direct surface and underground inflow. Within the period 1950-1960 the lake faced with extremely high water level that was not favorable for thedevelopment of fishing. It was built an artificial channel to regulate the water levelin the lake and control the water use at Greek side of the lake. In the period 1988-2000, the water level in the lake continuously was declining. Water leveldeclination caused ecological catastrophe for the flora and fauna in the lake andlake’s basin that was inconvenience for the basic economy in the region, tourismand fishing. The reasons for declining the water level in the lake are not clearlyidentified, and they are located in unfavorable hydrological conditions expressedthrough longer dried period or uncontrolled usage the water from the lake.In 2002, the Republic of Macedonia finished a project to build a system forbringing water from Gjavato wells near Vardar River with capacity of 1 m3/s. Thewater level in the lake has recently increased. In order to define the causes ofchanges in the lake requires detailed hydrological and meteorological analysis.This paper will present the results of hydrological and meteorological analysis onthe basis of historical data of measured water level, precipitation, and airtemperature from hydrometeorological station New Dojran for the period 1961-2008. Some comments on impact factors will be presented as well.

  18. Sediments of Ypacarai Lake

    International Nuclear Information System (INIS)

    Bottom and sestonic sediments of Ypacarai Lake were investigated with XRF and Moessbauer techniques. The 120 km2 lake, depth averages 1.8 m. In addition to the lakes use for recreation, its basin has economic significance. Sediments play an important role in the distribution of trace elements in the aquatic system and as a sink for metals. Bottom and seston samples were taken from 4 different sampling stations which were selected according the morphology and population sites on the shore. The concentration of toxic metals was found to be low and no adverse ecological impact should be expected. The main metallic ion component is iron (1.68%). Moessbauer studies showed this element appears as Fe3+. Iron2+ was not detected. We suggest that Fe3+ acts as the limiting element which controls the eutrophication process. (author) 13 refs.; 2 tabs

  19. Interesting Ziandao Lake

    Institute of Scientific and Technical Information of China (English)

    1998-01-01

    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,

  20. Islamisation et arabisation dans le monde musulman médiéval : une introduction au cas de l’Occident musulman (viie-xiie siècle)

    OpenAIRE

    Aillet, Cyrille

    2015-01-01

    L’intérêt des historiens pour l’Islam que l’on qualifie parfois de « classique » (viie-xie siècle) ne s’est jamais démenti. Le paradigme d’un âge d’or de l’Islam possède cependant l’inconvénient de disqualifier les périodes suivantes, mais aussi d’occulter le long processus de formation de cette civilisation dont l’image reste trop souvent figée sur l’acmé abbasside du ixe siècle, sur Le Caire fatimide ou sur Cordoue au xe siècle. L’islamologie, héritière des travaux pionniers d’Ignaz Goldzih...

  1. Lake Morphometry for NHD Lakes in Great Lakes Region 4 HUC

    Data.gov (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. Transient Tsunamis in Lakes

    Science.gov (United States)

    Couston, L.; Mei, C.; Alam, M.

    2013-12-01

    A large number of lakes are surrounded by steep and unstable mountains with slopes prone to failure. As a result, landslides are likely to occur and impact water sitting in closed reservoirs. These rare geological phenomena pose serious threats to dam reservoirs and nearshore facilities because they can generate unexpectedly large tsunami waves. In fact, the tallest wave experienced by contemporary humans occurred because of a landslide in the narrow bay of Lituya in 1958, and five years later, a deadly landslide tsunami overtopped Lake Vajont's dam, flooding and damaging villages along the lakefront and in the Piave valley. If unstable slopes and potential slides are detected ahead of time, inundation maps can be drawn to help people know the risks, and mitigate the destructive power of the ensuing waves. These maps give the maximum wave runup height along the lake's vertical and sloping boundaries, and can be obtained by numerical simulations. Keeping track of the moving shorelines along beaches is challenging in classical Eulerian formulations because the horizontal extent of the fluid domain can change over time. As a result, assuming a solid slide and nonbreaking waves, here we develop a nonlinear shallow-water model equation in the Lagrangian framework to address the problem of transient landslide-tsunamis. In this manner, the shorelines' three-dimensional motion is part of the solution. The model equation is hyperbolic and can be solved numerically by finite differences. Here, a 4th order Runge-Kutta method and a compact finite-difference scheme are implemented to integrate in time and spatially discretize the forced shallow-water equation in Lagrangian coordinates. The formulation is applied to different lake and slide geometries to better understand the effects of the lake's finite lengths and slide's forcing mechanism on the generated wavefield. Specifically, for a slide moving down a plane beach, we show that edge-waves trapped by the shoreline and free

  3. Lakes on Mars

    CERN Document Server

    Cabrol, Nathalie A

    2014-01-01

    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

  4. Lake Way uranium project

    Energy Technology Data Exchange (ETDEWEB)

    Eskell, S.; French, R.R.

    1982-01-01

    Several years ago Lake Way was considered by many to be too small and too low in grade to compete with the larger high grade deposits in other parts of Australia, and particularly in the Northern Territory. The pendulum has now swung and as far as Australian uranium resources are concerned Lake Way now has many advantages over the larger, richer deposits in other parts of Australia. These advantages are set out under appropriate headings (size, location, aboriginals, operating procedures, shipping, equity, and timing).

  5. Technologies for lake restoration

    Directory of Open Access Journals (Sweden)

    Helmut KLAPPER

    2003-09-01

    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

  6. Reclaiming the lake

    DEFF Research Database (Denmark)

    Rasmussen, Mattias Borg

    2016-01-01

    belonging during a weeklong uprising in defense of Lake Conococha. Highlighting the collective actions and personal narratives from participants in the region-wide blockade, the article therefore seeks to understand how dispossessions of environmental resources perceived as common property are cast in terms...... 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...

  7. Lake contamination models…

    OpenAIRE

    Varekamp, Johan C.

    2005-01-01

    "The time to reach steady state in a perfectly mixed reservoir can be derived from the time that it takes for the term exp[-t/R] go to ≈ zero, which occurs if t = 6R, when 99.75% of Cssp has been reached (600 months in the case of the model lake)." J.C. Varekamp. 2003. Lake contamination models for evolution towards steady state. J. Limnol., 62(Suppl.1): 67-72. The above sentence deserves critical consideration on the grounds of physical and experimental arguments. In an elementary physical s...

  8. Reevaluation of lake trout and lake whitefish bioenergetics models

    Science.gov (United States)

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

    2013-01-01

    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.

  9. 77 FR 41686 - Safety Zone; Sheffield Lake Fireworks, Lake Erie, Sheffield Lake, OH

    Science.gov (United States)

    2012-07-16

    ... DHS Department of Homeland Security FR Federal Register NPRM Notice of Proposed Rulemaking A... SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA00 Safety Zone; Sheffield Lake Fireworks, Lake Erie, Sheffield Lake, OH AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: The Coast Guard...

  10. Noms de famille, de baptême et surnoms recensés à Bayonne parmi les ressortissants de la "nation juive du bourg Saint-Esprit" au XVIIIème siècle

    OpenAIRE

    Iglesias, Hector

    2002-01-01

    Etude anthroponymique concernant la communauté juive bayonnaise au XVIIIe siècle. Les archives bayonnaises conservent plusieurs documents du XVIIIe siècle concernant la nation juive du bourg Saint-Esprit . Parmi ces documents, on trouve, entre autres, l'enregistrement par le " Sieur rabbin de la nation Juive du bourg Saint-Esprit près Bayonne " de 219 mariages, de 1184 naissances et de 1140 décès entre 1751 et 1788. Nous avons retranscrit et analysé d'un point de vue onomastique ce corpus. Au...

  11. Fish of Bear Lake, Utah

    OpenAIRE

    Palacios, Patsy; Luecke, Chris; Robinson, Justin

    2007-01-01

    There are 13 species of fish found in the waters of Bear Lake. Of those 13, 4 are endemic (found only in Bear Lake). The 4 endemics species are Bonneville cisco, Bonneville whitefish, Bear Lake whitefish, and Bear Lake sculpin. Five of the remaining 9 fish species are native to the region, and 4 are exotic introductions. These native fishes are the Bonneville cutthroat trout, Utah sucker, redside shiner, speckled dace and Utah chub. The exotic fishes are lake trout, common carp, yellow p...

  12. Plutonium in the Great Lakes

    International Nuclear Information System (INIS)

    Since 1971 plutonium concentrations have been measured annually in Lake Michigan and Lake Ontario and at less frequent intervals in the other Great Lakes. The concentrations of plutonium in the water column have decreased only slightly during the 7 y of measurement. The residence times for plutonium in the lakes have been estimated by simple time-concentration models. The apparent sinking rates for plutonium have been found to be essentially constant in all the Great Lakes, which suggest that the basic processes that control the concentrations of dissolved plutonium are similar despite considerable differences in chemical, biological, and physical characteristics of the lakes. Analyses of plutonium in water, suspended solids, material from sediment traps, and sediment cores show that considerable resuspension of previously sedimented material into the hypolimnion occurs throughout a major part of the year. A mechanism is proposed to account for the seasonal cycling of plutonium in the epilimnion of Lake Michigan

  13. Temperature Trends in Montane Lakes

    Science.gov (United States)

    Melack, J. M.; Sadro, S.; Jellison, R.

    2014-12-01

    Long-term temperature trends in lakes integrate hydrological and meteorological factors. We examine temperature trends in a small montane lake with prolonged ice-cover and large seasonal snowfall and in a large saline lake. Emerald Lake, located in the Sierra Nevada (California), is representative of high-elevation lakes throughout the region. No significant trend in outflow temperature was apparent from 1991to 2012. Snowfall in the watershed accounted for 93% of the variability in average summer lake temperatures. Mono Lake (California) lies in a closed, montane basin and is hypersaline and monomictic or meromictic. Temperature profiles have been collected from 1982 to 2010. In the upper water column, the July-August-September water temperatures increased 0.8-1.0°C over the 29 years. This rate of warming is less than published estimates based on satellite-derived skin temperatures and will discussed in the context of general limnological interpretation of temperature trends.

  14. Echoes of Bark Lake.

    Science.gov (United States)

    Duenkel, Nicky; Hemstreet, Jeff

    1997-01-01

    Two former staff members reflect on their feelings about the August 1995 closing of Bark Lake Leadership Centre (Ontario, Canada), which for 49 years had offered outdoor adventure and environmental education courses to youth and adults. They discuss their experiences as both students and teachers at the center, which helped shape their careers in…

  15. Lake Ontario: Nearshore Variability

    Science.gov (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. ...

  16. Kunming-Green Lake

    OpenAIRE

    Ai, Chi-Han

    2012-01-01

    Green Lake of Kunming is near Yunnan University. It is a comfortable place for leisure. As Kunming is known as the "city of eternal spring", its perpetual spring-like weather and its annual average temperature of 15 ° C, it is nice to take a walk in the park.

  17. Cold Lake profitability improvement

    International Nuclear Information System (INIS)

    For the past ten years, Imperial Oil Ltd. has been carrying out a world scale commercial project, using cyclic steam stimulation (CSS) to extract bitumen from the Cold Lake area. Because of the very heavy and viscous nature of Cold Lake bitumen, Imperial Oil has employed CSS as a means of in-situ enhanced recovery. Although this method has been very effective, production has been challenged by the cost of generating and treating steam. To comply with pipeline constraints, Cold Lake bitumen has had to be blended with a diluent. The blended product has been a desirable refinery feedstock, however, it sells for less that light sweet crude, clearly indicating the need for unit cost reduction. Since the start-up of operations nearly a decade ago cost reductions have been achieved in many areas, including production technology, water management, fuel efficiency, services and maintenance, people productivity, electricity costs, and chemical costs. The combined value of these reductions was claimed to be about one third of production costs, resulting in significantly improved competitive position and profitable development of the Cold Lake deposit. 5 figs

  18. Saint-Junien début de siècle, à travers trois récits distincts

    Directory of Open Access Journals (Sweden)

    Vincent Brousse

    2008-11-01

    Full Text Available À partir de trois récits distincts étalés sur 60 ans et tous relatifs à une période très brève de l’histoire, au début du xxe siècle, d’une ville industrielle du Limousin, Saint-Junien, il s’agit de confronter trois points de vue, celui d’un prêtre Simon Delort, celui d’un militant de l’Action française Georges Gaudy, et celui d’un militant anarchiste Jean Bourgoin. Le propos vise à interroger la présentation historique de la ville, sa construction mémorielle, certains de ses acteurs de premier plan, et l’émergence d’une société nouvelle en construction où les libertaires semblent, un instant, jouer le premier rôle. Cela permet aussi de comprendre pourquoi aujourd’hui, toujours municipalité communiste, depuis 87 ans, Saint-Junien est demeurée « la ville rouge ».This paper is based on three different stories, written over 60 years, and all three related to a very short period of the xxth-century-history of Saint-Junien, an industrial town in Limousin. Three different points of view are compared : fromSimon Delort, a priest ; from Georges Gaudy an Action-Française militant, and from Jean Bourgoin, an anarchist militant.We aim at tackling the historical presentation of the town, its memorial construction, some of its first-rank actors, and the rising up of a new society where the Libertarians played the first part for a very short time. This paper is also the occasion to understand how Saint-Junien has remained a Communist town for 87 years and is still named « the red town ».

  19. Lake level variability in Silver Lake, Michigan: a response to fluctuations in lake levels of Lake Michigan

    Science.gov (United States)

    Fisher, Timothy G.; Loope, Walter L.

    2004-01-01

    Sediment from Silver Lake, Michigan, can be used to constrain the timing and elevation of Lake Michigan during the Nipissing transgression. Silver Lake is separated from Lake Michigan by a barrier/dune complex and the Nipissing, Calumet, and Glenwood shorelines of Lake Michigan are expressed landward of this barrier. Two Vibracores were taken from the lake in February 2000 and contain pebbly sand, sand, buried soils, marl, peat, and sandy muck. It is suggested here that fluctuations in the level of Lake Michigan are reflected in Silver Lake since the Chippewa low phase, and possibly at the end of the Algonquin phase. An age of 12,490 B.P. (10,460±50 14C yrs B.P.) on wood from a buried Entisol may record the falling Algonquin phase as the North Bay outlet opened. A local perched water table is indicated by marl deposited before 7,800 B.P. and peat between 7,760-7,000 B.P. when Lake Michigan was at the low elevation Chippewa phase. Continued deepening of the lake is recorded by the transition from peat to sandy muck at 7,000 B.P. in the deeper core, and with the drowning of an Inceptisol nearly 3 m higher at 6,410 B.P. in the shallower core. A rising groundwater table responding to a rising Lake Michigan base level during the Nipissing transgression, rather than a response to mid-Holocene climate change, explains deepening of Silver Lake. Sandy muck was deposited continually in Silver Lake between Nipissing and modern time. Sand lenses within the muck are presumed to be eolian in origin, derived from sand dunes advancing into the lake on the western side of the basin.

  20. L’Université de Perpignan au XVIIIe siècle : palais et temple du savoir à l’âge des Lumières

    Directory of Open Access Journals (Sweden)

    Esteban Castañer Muñoz

    2012-01-01

    Full Text Available L’édifice de l’ancienne Université de Perpignan fut construit en 1759 par l’Ingénieur Lescure. Louis XV, à la demande du gouverneur de Mailly, voulut faire de Perpignan une ville des Lumières. La construction de l’Université avait dans ce contexte une signification particulière. Le bâtisseur s’inspira des modèles architecturaux du palais et du temple suivant les orientations stylistiques de la deuxième moitié du XVIIIe siècle. Avec son amphithéâtre d’anatomie, l’ancienne université de Perpignan est l’un des ensembles universitaires du XVIIIe siècle le plus complet encore existant en France.The former buildings of the University of Perpignan date back to 1759 and were designed by an engineer: Lescure. King Louis XV attending the request of Governor de Mailly wanted to turn Perpignan into a city of the Enlightenment. Considering this circumstance the university buildings themselves had a specific significance. The master-builder was inspired by the style of the palaces and the temples that were built during the second half of the 18th Century. The former University of Perpignan and its anatomy lecture hall constitutes one of the best examples of a well preserved 18th Century French university.

  1. Modelling of radiocaesium in lakes - lake sensitivity and remedial strategies

    International Nuclear Information System (INIS)

    A given fallout of radiocesium (e.g. after the Chernobyl accident) will be distributed and taken up by biota very differently in various types of lake. Thus, lakes have different ''sensitivities'' to radiocesium. Important environmental factors regulating the biouptake of 137Cs are the lake water retention time and the K concentration of the water. Several practically useful and ecologically relevant methods exist to remediate lakes contaminated by radiocesium, e.g. liming, potash treatment and fertilization of low-productive lakes. The basic aim of this paper is to use a validated, state-of-the-art model for radiocesium in lakes, the VAMP model, first to illustrate the fact that different lakes have different 'sensitivities' and then to simulate the effects of alternative remedial methods. Target variables in these tests are Cs concentrations in lake water and in predatory fish. These results emanate from IAEAs VAMP project. The lakes included in this work cover a wide range of lake and catchment characteristics. (Author)

  2. The fisheries resources of Lake Nakivali

    OpenAIRE

    2010-01-01

    Lake Nakivali is one of the four small lakes that form what is known as the koki lake sysyem. It is 14km long,6km wide.26km sqaured in area and has maximum depth of 3.5m at high water level. The lake is located in lake-swamp complex with river Rwizi as the principle inflow, and a number of peripheral lakes among which are four major ones,i.e Lake Nakivali, Mburo, Kachira and Kijanebalola. Lake Nakivali is a controlled lake with four official landing sites, namely: Kikusi, Kahirimbi, Kashojwa ...

  3. Potential strategies for recovery of lake whitefish and lake herring stocks in eastern Lake Erie

    Science.gov (United States)

    Oldenburg, K.; Stapanian, M.A.; Ryan, P.A.; Holm, E.

    2007-01-01

    Lake Erie sustained large populations of ciscoes (Salmonidae: Coregoninae) 120 years ago. By the end of the 19th century, abundance of lake whitefish (Coregonus clupeaformis) had declined drastically. By 1925, the lake herring (a cisco) population (Coregonus artedii) had collapsed, although a limited lake herring fishery persisted in the eastern basin until the 1950s. In the latter part of the 20th century, the composition of the fish community changed as oligotrophication proceeded. Since 1984, a limited recovery of lake whitefish has occurred, however no recovery was evident for lake herring. Current ecological conditions in Lake Erie probably will not inhibit recovery of the coregonine species. Recovery of walleye (Sander vitreus) and efforts to rehabilitate the native lake trout (Salvelinus namaycush) in Lake Erie will probably assist recovery because these piscivores reduce populations of alewife (Alosa psuedoharengus) and rainbow smelt (Osmerus mordax), which inhibit reproductive success of coregonines. Although there are considerable spawning substrates available to coregonine species in eastern Lake Erie, eggs and fry would probably be displaced by storm surge from most shoals. Site selection for stocking or seeding of eggs should consider the reproductive life cycle of the stocked fish and suitable protection from storm events. Two potential sites in the eastern basin have been identified. Recommended management procedures, including commercial fisheries, are suggested to assist in recovery. Stocking in the eastern basin of Lake Erie is recommended for both species, as conditions are adequate and the native spawning population in the eastern basin is low. For lake herring, consideration should be given to match ecophenotypes as much as possible. Egg seeding is recommended. Egg seeding of lake whitefish should be considered initially, with fingerling or yearling stocking suggested if unsuccessful. Spawning stocks of whitefish in the western basin of Lake

  4. Lake Mead--clear and vital

    Science.gov (United States)

    Wessells, Stephen M.; Rosen, Michael

    2013-01-01

    Lake Mead – Clear and Vital” is a 13 minute documentary relating the crucial role of science in maintaining high water quality in Lake Mead. The program was produced coincident with release of the Lakes Mead and Mohave Circular a USGS publication covering past and on-going research in the lakes and tributaries of the Lake Mead National Recreation Area.

  5. Predicting Maximum Lake Depth from Surrounding Topography

    Science.gov (United States)

    Lake volume aids understanding of the physical and ecological dynamics of lakes, yet is often not readily available. The data needed to calculate lake volume (i.e. bathymetry) are usually only collected on a lake by lake basis and are difficult to obtain across broad regions. ...

  6. Citizen volunteer water monitoring on Smith Lake

    OpenAIRE

    Alabama Water Watch

    2005-01-01

    Publication includes: Lake Facts and Figures; Long-term Trends in Lake Water Quality; Impacts on the Lake and What's Being Done About It; Trouble Waters; Watershed-level Water Quality Differences; Timeline of AAW (Alabama Water Watch), SLCA (Smith Lake Civic Association) and SLEPC (Smith Lake Environmental Protection Committee); and Alabama's Rich Water Resources and AAW.

  7. Aeolian sand preserved in Silver Lake: a new signal of Holocene high stands of Lake Michigan

    Science.gov (United States)

    Fisher, Timothy G.; Loope, Walter L.

    2005-01-01

    Aeolian sand within lake sediment from Silver Lake, Michigan can be used as a proxy for the timing of high lake levels of Lake Michigan.We demonstrate that the sand record from Silver Lake plotted as percent weight is in-phase with the elevation curve of Lake Michigan since the mid-Holocene Nipissing Phase. Because fluctuations in Lake Michigan's lake level are recorded in beach ridges, and are a response to climate change, the aeolian sand record within Silver Lake is also a proxy for climate change. It appears that increases in dune activity and lake sand are controlled by similar climatic shifts that drive fluctuations in lake level of Lake Michigan. High lake levels destabilize coastal bluffs that drive dune sand instability, and along with greater wintertime storminess, increase niveo-aeolian transport of sand across lake ice. The sand is introduced into the lake each spring as the ice cover melts.

  8. Life history of lake herring in Lake Superior

    Science.gov (United States)

    Dryer, William R.; Beil, Joseph

    1964-01-01

    The average annual commercial catch of lake herring (Coregonus artedi) in U.S. waters of Lake Superior was nearly 12 million pounds in 1929-61. This production contributed 62.4 percent of the total U.S. take of lake herring for the Great Lakes. About 90 percent of the annual catch is taken from small-mesh gill nets during the November-December spawning season. The life-history studies were based on 12,187 fish collected in 1950-62; past growth was computed for 3,779 specimens collected from commercial landings at: Duluth, Minn.; Bayfield, Wis.; and Portage Entry and Marquette, Mich.

  9. Lake Kivu, Limnology and Biogeochemistry of a Tropical Great Lake

    OpenAIRE

    2012-01-01

    In the heart of Africa, a unique lake has attracted the attention of scientists since the beginning of the 20th century. At the foot of the Virunga volcano chain, Lake Kivu harbors a vast amount of dissolved carbon dioxide and methane, making it the most dangerous lake on Earth. But the lake also furnishes many goods and services for surrounding populations and may soon become the most important energy supplier in the area. At the beginning of gas exploitation, the time has come to gather the...

  10. Les relations entre les acteurs locaux et le Conseil des bâtiments civils dans la première moitié du XIXe siècle à Bourges, Colmar et Laval.

    OpenAIRE

    Bondon, Anne

    2013-01-01

    Cet article présente les relations complexes entre le Conseil des bâtiments civils et les acteurs locaux (municipalités, architectes) autour de la question des transformations architecturales et urbaines dans la première moitié du XIXe siècle.

  11. La société de secours mutuels des Vrais Amis (1820-1898) : comment les bouchers parisiens ont-ils organisé leur protection sociale au XIXe siècle?

    OpenAIRE

    Leteux, Sylvain

    2010-01-01

    National audience Au XIXe siècle, les bouchers parisiens ont réussi de façon précoce (dès 1820) à fonder une société de secours mutuels et à reconstituer une protection sociale de type corporative proche du fonctionnement existant sous l'Ancien Régime.

  12. Great Lakes Energy Institute

    Energy Technology Data Exchange (ETDEWEB)

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

    2012-11-18

    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.

  13. Zooplankton of Lake Kivu

    OpenAIRE

    Darchambeau, François; Isumbisho, Mwapu; Descy, Jean-Pierre

    2012-01-01

    The dominant species of the crustacean plankton in Lake Kivu are the cyclopoid copepods Thermocyclops consimilis and Mesocyclops aequatorialis and the cladoceran Diaphanosoma excisum. Mean crustacean biomass over the period 2003–2004 was 0.99 g C m−2. The seasonal dynamics closely followed variations of chlorophyll a concentration and responded well to the dry season phytoplankton peak. The mean annual crustacean production rate was 23 g C m−2 year−1. The mean trophic transfer efficiency betw...

  14. Bryozoans of Banyoles lake

    OpenAIRE

    Rieradevall i Sant, Maria; Busquets, Josep M.

    1990-01-01

    Data for bryozoan species from Banyoles lake (NE Spain) are presented. Three species have been recorded: Fredericella sultana, Lophopus crystallinus and Plurnatella repens, the first two for the first time in the Iberian peninsula. An examination of the F. sultana colony and the statoblast observations of L. crystallinus and P. repens with the scanning electron rnicroswpe made possible the identification. Details of the floatoblast structure are given.

  15. Lake Urmia is disappearing

    OpenAIRE

    Khatami, Sina

    2015-01-01

    The present article is a translation—to Farsi—of an article by Dr. Ali Mirchi (postdoctoral research associate at the Department of Civil and Environmental Engineering, Michigan Technological University), Dr. Kaveh Madani (lecturer in Environmental Management at the Centre for Environmental Policy, Imperial College London) and Dr. Amir Aghakouchak (assistant professor at the Department of Civil and Environmental Engineering, University of California, Irvine), entitled "Lake Urmia: how Ir...

  16. The Lake Theatre

    OpenAIRE

    Weller, Samantha Joanne

    2015-01-01

    At the beginnings of this thesis, the importance was solely focused on the design of an independent multipurpose theater and the transitions between the public area and backstage. As the year and project progressed, it changed to become a realization and study of architectural experiences within a space. After choosing a site within the Snoqualmie National Forest in Seattle overlooking Lake Serene, decisions were made to design a theater that would not hinder the natural landscape but im...

  17. Bear Lake-Minidoka - Phragmites Control

    Data.gov (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...

  18. 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

    Data.gov (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...

  19. PALEOCLIMATIC CHANGES IN DABUSU LAKE

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    Study on the carbonate content and oxygen isotope of a sediment section in Dabusu Lake revealed that this region has experienced several cold-wet and warm-dry climatic cycles since 15400 a BP. It was about 6740 a BP when the climate in the region reached a relatively stable warm stage, so that the lake water was gradually condensed and finally a saline lake was formed.

  20. On China's lake fisheries development

    OpenAIRE

    Wu, W.; Yang, N.; Jin, L.

    1991-01-01

    An account is given of the current situation regarding the lake fisheries and fish culture practices in China. The modern lake fisheries take advantage of the 3-D spaces of lakes to fully develop the resources. Currently, the fisheries concentrate on the following 3 aspects: bringing the water body into full play; various types of aquaculture enclosures; and selective measures in resources protection, stocking and aquaculture.

  1. Surface seiches in Flathead Lake

    OpenAIRE

    G. Kirillin; Lorang, M. S.; T. C. Lippmann; C. C. Gotschalk; S. Schimmelpfennig

    2014-01-01

    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 spat...

  2. Lake Evaporation: A Model Study

    OpenAIRE

    Amayreh, Jumah

    1995-01-01

    Reliable evaporation data are an essential requirement in any water and/or energy budget studies. This includes operation and management of both urban and agricultural water resources. Evaporation from large, open water surfaces such as lakes and reservoirs may influence many agricultural and irrigation decisions. In this study evaporation from Bear Lake in the states of Idaho and Utah was measured using advanced research instruments (Bowen Ratio and Eddy Correlation). Actual over-lake evapor...

  3. Resilience and Restoration of Lakes

    OpenAIRE

    Cottingham, Kathryn L.; Carpenter, Stephen R.

    1997-01-01

    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, regi...

  4. Algae Bloom in a Lake

    Directory of Open Access Journals (Sweden)

    David Sanabria

    2008-01-01

    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.

  5. Glacial lakes Buni and Jezerce: Albania

    OpenAIRE

    Milivojević Milovan; Kovačević-Majkić Jelena

    2005-01-01

    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...

  6. THE LAKES IN ROMANIA - AN ACTUAL SYNTHESIS

    OpenAIRE

    Petre GÂŞTESCU

    2010-01-01

    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).

  7. 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)

    2015-06-30

    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

  8. 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

    1995-12-31

    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.

  9. The Lake Ohrid SCOPSCO project

    Science.gov (United States)

    Wagner, Bernd; Wilke, Thomas; Krastel, Sebastian; Zanchetta, Giovanni; Sulpizio, Roberto; Leng, Melanie J.; Francke, Alexander; Baumgarten, Henrike; Cvetkoska, Aleksandra; Giacco, Biagio; Lacey, Jack H.; Leicher, Niklas; Levkov, Zlatko; Lindhorst, Katja; Reed, Jane M.; Zhang, Xiaosen; Sadori, Laura; Vogel, Hendrik; Wagner-Cremer, Friederike; Wonik, Thomas

    2015-04-01

    The ICDP SCOPSCO project at Lake Ohrid in Macedonia and Albania was one of the most successful lake drilling campaigns worldwide. Drilling took place from April to June 2013 and yielded more than 2000 m of sediments from four different sites in the lake. The maximum penetration was 569 m below lake floor and the overall recovery at all drill sites was > 95 %. Almost two years after the drilling operation, core opening and processing as well as biological and geological analyses are still ongoing. However, most of the cores from the main drill site, the so-called DEEP site in the centre of the lake, are meanwhile opened and reveal a unique record of lake history. The extraordinary quality of seismic, borehole logging and core data allows us to achieve the major goals of the SCOPSCO project. Seismic data, diatoms and coarse-grained sediments in the basal cores indicate that Lake Ohrid had no marine origin, as it was speculated in the past. The data show that Lake Ohrid established in a highly dynamic pull-apart basin with varying fluvial and shallow water conditions. On top of these basal sediments, borehole logging data, XRF scanning data, carbonate, and the amount of organic matter indicate a complete and high resolution succession of glacial / interglacial cycles and interspersed stadials and interstadials. This allows us to determine the establishment of Lake Ohrid by means of chronostratigraphic tuning to about 1.3 to 1.5 Ma ago. Additional, independent age control is given by paleomagnetic data and by numerous tephra layers, which can be correlated with well-dated proximal tephra deposits in Italy. The uppermost 350 m of the sediment record contain more than 30 tephras, which makes the Lake Ohrid record to the rosetta stone of distal Italian tephra deposits in the Balkan region. The unique sediment record of Lake Ohrid is fundamental to obtain crucial information on the overall goal of the SCOPSCO project, i.e. to clarify why Lake Ohrid has one of highest

  10. Lire l’onanisme. Le discours médical sur la masturbation et la lecture féminines au xviiie siècle

    OpenAIRE

    Wenger, Alexandre

    2007-01-01

    Cet article propose une analyse croisée du discours médical sur la masturbation et sur la lecture en France au XVIIIe siècle. Son but est d’interroger la construction de la définition « naturalisante » des qualités attribuées à l’un et l’autre sexe. A partir de traités physiologiques sur les maladies des femmes, la réflexion porte sur trois points principaux. Pourquoi la lecture et la masturbation sont-ils devenus des problèmes médicaux ? Comment un médecin neutralise-t-il le danger, pour une...

  11. La médecine pratique : une activité heuristique à la fin du 18e siècle?

    OpenAIRE

    Rieder, Philip Alexander

    2015-01-01

    La médecine pratique était une discipline médicale au cap du 19e siècle. En partant de l'analyse statistique des publications et de l'analyse détaillée de la production scientifique d'un médecin, l'objectif de l'article est de montrer que ce champ a joué un rôle important dans l'évolution des idées médicales en permettant la mise en avant d'un savoir médical libre, selon ses concepteurs, d'héritages historiques. L'analyse signale le rôle joué par la médecine pratique dans la rationalisation d...

  12. François Marotin (dir.), Révolutions au XIXe siècle. Violence et identité

    OpenAIRE

    Martin, Jean-Clément

    2013-01-01

    Le titre ne l’indique pas assez : il recouvre un ensemble de dix-sept études littéraires consacrées à des auteurs du XIXe siècle, français à trois exceptions près, qui ont traité de la Révolution. Le thème est bien connu, mais toujours important et le concepteur de l’ouvrage souligne l’orientation commune, rendre compte des bouleversements identitaires induits par la Révolution française. Celle-ci a changé le sens de la violence, la faisant devenir accoucheuse de l’Histoire, en brisant les de...

  13. L’architecture publique au XIXe siècle, richesse et variété des sources des Archives nationales

    OpenAIRE

    Gastaldi, Nadine

    2015-01-01

    Les sources relatives à l’architecture publique au xixe s. sont, aux Archives nationales, nombreuses, variées et dispersées (à travers les séries du cadre de classement). La notion « d’architecture publique » apparaît avec le décret du 27 avril 1791. On dresse la liste des bâtiments publics – nationaux, départementaux, communaux, hospitaliers – dans ses évolutions au cours du siècle. Par rapport à ces bâtiments, l’action de l’État, elle-même évolutive, est celle soit de maître d’œuvre, soit d...

  14. L’alliance normando-tupi au xvie siècle : la célébration de Rouen

    OpenAIRE

    Perrone-Moisés, Beatriz

    2014-01-01

    L’alliance normando-tupi au xvie siècle : la célébration de Rouen. En 1550, la ville de Rouen prépare une série de festivités pour la joyeuse entrée du roi Henri II et de sa cour, dont deux éléments relient les marchands du port normand aux Tupi de la côte du Brésil : une mise en scène de la vie quotidienne de ces derniers – nommée « fête brésilienne » par l’historien Ferdinand Denis, et à laquelle participent 50 indiens tupi et 250 matelots normands – et une bataille navale entre Français et...

  15. Georges Mounin, Histoire de la linguistique des origins au XX siècle, Paris, Presses Universitaires de France, 967, 226 str.

    Directory of Open Access Journals (Sweden)

    Žarko Muljačić

    2016-02-01

    Full Text Available U zbirci »Le linguiste« koja je dio odlične serije priručnika “Les précis de l'enseignement supérieur” (skraćeno SUP a uređuje je A. Martinet, izašla je nedavno ova knjiga. Di:ugi dio, La linguistique du xxe siècle, u pripremi je u istoj zbirci. Autor, profesor Filozofskog fakulteta u Aix-en-Provence, istaknuti je romanist koji je dosada objavio deset knjiga i velik broj članaka i manjih priloga iz oblasti romanskih: jezika i književnosti te opće lingvistike s osobitim obzirom. na problem prevođenja uopće i stroja za prevođenje posebno .

  16. Le stéréotype de l’étudiant pauvre et indiscipliné dans les sources du xiie siècle

    OpenAIRE

    Gorochov, Nathalie

    2015-01-01

    C’est au xiiie siècle qu’apparaissent les universités, des institutions tout à fait originales sans véritable précédent en Occident ou dans les mondes voisins, qu’il s’agisse de Byzance ou des pays d’Islam. Elles associent les maîtres et/ou les étudiants en communautés autonomes reconnues et protégées par les plus hautes autorités laïques et ecclésiastiques, des communautés assez semblables aux métiers urbains qui s’organisent au même moment. Ces premières universités sont peu nombreuses ; au...

  17. La Macédoine grecque, populations, migrations et territoires depuis le début du XXème siècle

    OpenAIRE

    Tzimakas, Menelaos

    2014-01-01

    L'objet de l'étude est l'évolution de la composition et de la répartition géographique de la population de la Macédoine grecque de l'année 1913 (fixation de frontières actuelles) à nos jours. Les principales populations étudiées sont les populations grecque, musulmane, bulgare, population macédonienne orthodoxe de langue slave, juive, valaque, albanaise (selon les acceptions courantes qui seront définies). Cette évolution sur un siècle se décompose en cinq périodes, chacune étant liée à un ou...

  18. Mission locale, vision globale : utopie et vie sociale dans les missions jésuites en Amazonie au XVIIe siècle

    OpenAIRE

    Guzmán, Décio de Alencar

    2015-01-01

    Penser les missions jésuites au XVIIe siècle, c’est penser le monde des prophéties du « Cinquième Empire » d’Antônio Vieira. Cela signifie aussi penser l’expérience missionnaire vécue par cet « homme-monde ». En tant que tel, Vieira projeta vers l’avenir des réalités politiques entièrement neuves imaginées par lui et qui n’avaient jamais existé avant. En arrivant au Maragnon, en 1653, Antônio Vieira, supérieur de la Mission des pères de la Compagnie de Jésus, commença son expérience avec l’es...

  19. Oran au xviiie siècle : du désarroi à la clairvoyance politique de l’Espagne

    OpenAIRE

    Terki Hassaine, Ismet

    2013-01-01

    Il s’agit d’une étude qui a pour objet de reconsidérer, à partir des sources espagnoles, de la section d’État des Archives historiques nationales de Madrid, quelques faits historiques qui ont marqué l’histoire des relations algéro,espagnoles, et d’apporter un autre éclairage sur l’attitude adoptée par la nouvelle équipe politique des Bourbons, au sujet de la question d’Oran et de Mers,el Kébir, tout le long du xviiie siècle, c’est,à,dire avant et après leur évacuation en février 1792. Il s’ag...

  20. Alain Rouquié, Le Brésil au XXIe siècle. Naissance d’un nouveau grand , Paris, Fayard, 2007, 409 p.

    OpenAIRE

    Burgos, Elizabeth

    2008-01-01

    Ante el inexplicable desconocimiento que se tiene acerca del mayor de los países del continente latinoamericano, que se cuenta entre las futuras grandes potencias del mundo, la obra de Alain Rouquié, Le Brésil au XXIe siècle. Naissance d’un nouveau grand, sin duda, contribuirá a llenar ese  vacío. Pese a no pretender decir todo cuanto al Brasil se refiere ni a ofrecer las claves de ese país « enigmático », según las palabras del autor, estamos ante una obra que se nutre, no solo del rigor de...

  1. Frédéric Attal, Histoire des intellectuels italiens au xxe siècle. Prophètes, philosophes et experts

    OpenAIRE

    Frétigné, Jean-Yves

    2014-01-01

    Il manquait en France une histoire des intellectuels italiens au xxe siècle. Ce manque est désormais comblé avec l’ouvrage de Frédéric Attal. Ce livre nous semble aussi susceptible d’intéresser le public italien plus habitué à des histoires de la pensée – viennent immédiatement à l’esprit celles, remarquables, de Norberto Bobbio et d’Eugenio Garin. La force première de cet ouvrage tient dans son projet même. En Italie, il n’existe pas, à la différence de la France avec l’affaire Dreyfus, un a...

  2. Wagnerianos, flâneurs, hombres-masa. Los ambientes sinestésicos en la arquitectura fin-de-siècle

    OpenAIRE

    Eduardo Prieto

    2014-01-01

    Con su énfasis en la contaminación entre las disciplinas, así como en el papel que otorgan a la integración de los sentidos humanos en la percepción del espacio, las investigaciones contemporáneas sobre las “atmósferas” habitadas tienen un antecedente apenas señalado por la historiografía: la arquitectura fin-de-siècle. En la Francia de finales del siglo XIX la sinestesia se convierte en un tema de moda que, procedente de la recién fundada estética psicológica, pronto desbordará sus primitivo...

  3. Plumes royales : l'art épistolaire chez les souverains et souveraines de Navarre et de France au XVIe siècle.

    OpenAIRE

    Pardanaud-Landriot, Chloé

    2012-01-01

    La première partie présente l'état des connaissances actuelles sur les souverains et souveraines de Navarre et de Franceau XVI' siècle. Elle recense les publications de leurs écrits ainsi que les différents angles sous lesquels ils ont étéenvisagés jusqu'à présent par les chercheurs. Elle précise enfin selon quels critères a été établi le corpus étudié (choixdes lettres, compléments inédits).La deuxième partie définit les contextes culturels et matériels des correspondances royales. Elle fait...

  4. Amour, mariage, magie dans la littérature néohellénique au tournant du siècle

    OpenAIRE

    Siaflekis, Zacharias I.

    2003-01-01

    L'objet de cet article est l'étude des thèmes de l'amour, du mariage et de la magie dans quatre textes de la littérature néohellénique, écrits entre 1890 et 1910. À travers une analyse des structures narratives et de la relation entre les statuts réel et fictif des héros, l'auteur propose une lecture sociologique du lieu concret, la Grèce du début du siècle. Le mode de représentation rappelle les influences européennes, alors que la lecture critique de la réalité sociale, faite à traver...

  5. Pour une histoire du négoce international français au XIXe siècle : Problèmes, sources et perspectives

    OpenAIRE

    Pétré-Grenouilleau, Olivier

    2008-01-01

    L’histoire du négoce international français au XIXe siècle reste encore très largement à écrire. Les motifs de cette situation sont analysés dans une première partie. L’un d’entre eux réside dans une croyance : celle d’une disparition quasi totale du grand négoce français après 1792. A l’idée d’une rupture est ensuite substituée celle d’une longue transition entre deux mondes, l’un hérité de la période mercantiliste, l’autre né sous les auspices de la révolution industrielle. Dès lors, le pr...

  6. Étude de topographie monastique : l’ancien palais abbatial de Saint-Claude (Jura, Ve-XVIIIe siècle

    Directory of Open Access Journals (Sweden)

    Sébastien Bully

    2008-09-01

    Full Text Available La ville de Saint-Claude doit sa notoriété à son monastère, Condat, fondé dans les années 430 par Romain, premier « Père du Jura ». Cette importante abbaye bénéficia du prestige de son antiquité et de celui de ses saints fondateurs et thaumaturges durant tout le Moyen Âge – dont saint Claude, abbé mérovingien « découvert » au XIIe siècle –, avant d’être remplacée par un évêché en 1742.Mon travail de thèse présente le résultat des différentes recherches archéologiques entreprises sur l’abbaye ...

  7. Les ornements liturgiques au XIXe siècle : origine, fabrication et commercialisation, l’exemple du diocèse de Moulins (Allier)

    OpenAIRE

    Aurore Chatard

    2012-01-01

    Depuis le concile Vatican II, la volonté de l’Église catholique de tendre vers une plus grande simplicité pour réduire la distance, tant physique que psychologique, entre ses ministres et l’ensemble des fidèles a contribué à abandonner certains fastes de la liturgie. Aujourd’hui, l’étude des ornements liturgiques rend compte de leur place au cours des rites et de l’attention portée à leur réalisation. Le XIXe siècle est souvent considéré comme l’âge d’or de leur confection. Une recherche mené...

  8. Sylvie Schweitzer, Femmes de pouvoir. Une histoire de l’égalité professionnelle en Europe (XIXe - XXIe siècle, Paris, Payot, 2010, 249 p.

    Directory of Open Access Journals (Sweden)

    Isabelle Ernot

    2010-07-01

    Full Text Available Avec cet ouvrage, Sylvie Schweitzer poursuit son investigation autour de l’histoire du travail des femmes. L’étude se focalise particulièrement sur la voie du savoir, à travers la question des diplômées et de leur accession progressive à des professions valorisantes et de pouvoir, dans le cadre d’un temps long de cent cinquante années, courant du milieu du XIXe au début du XXIe siècle. Si la France constitue le cadre de référence essentiel, cet essai d’histoire comparée regarde aussi vers l’e...

  9. Ut rosa spineti compensans flore rigorem. La Vierge Immaculée comme Nouvelle Ève dans la peinture italienne du xvie siècle

    OpenAIRE

    Marianna Lora

    2012-01-01

    Parmi les différents types iconographiques de l’Immaculée Conception qui se diffusent dans la peinture italienne du xvie siècle, la Vierge Immaculée Nouvelle ève revêt une importance toute particulière. Dans ce genre d’images, l’accent est porté sur le fait que Marie Immaculée doit être considérée comme la Nouvelle Ève, celle qui s’oppose à la première femme ; elle est sans péché dès l’origine car elle va opérer contre le péché même. C’est seulement en 1518 que l’opposition Marie–ève est adop...

  10. Les communautés savantes européennes à la fin du siècle des Lumières

    Directory of Open Access Journals (Sweden)

    René Sigrist

    2013-08-01

    Full Text Available Le présent article traite de la localisation des savants européens à la fin du XVIIIe siècle. Une première méthode consiste à cartographier la «République des sciences» à partir de la Liste des astronomes connus actuellement vivants établie par Jean III Bernoulli entre 1776 et 1779. Une seconde méthode localise les membres et correspondants des six principales académies scientifiques de l'époque, soit celles de Paris, Londres, Berlin, St-Pétersbourg, Stockholm et Bologne. Dans le cas particulier de la France, la recherche met en évidence l'articulation spatiale entre la communauté académique de la capitale, les villes de province et les centres étrangers.

  11. Le savant, l’industriel et la nation :pour une histoire politique de la science au 20ème siècle

    OpenAIRE

    Bertrams, Kenneth

    2012-01-01

    La science est universelle mais qu’en est-il des savants ?L’historiographie de la Première Guerre mondiale a montré comment la « nouvelle alliance » qui s’était nouée durant le conflit entre savants, techniciens, industriels, militaires et hommes d’Etat a marqué de son empreinte le 20ème siècle en général. D’autres travaux, ont également souligné l’impact immédiat de la Grande Guerre sur la rupture des relations intellectuelles internationales. En s’appuyant sur les tendances récentes de l’hi...

  12. Forecasting Lake-Effect Snow in the Great Lakes Using NASA Satllite Data

    Science.gov (United States)

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

    2011-01-01

    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.

  13. Chronologie de la renaissance du vitrail à Paris au XIXe siècle : L’exemple de l’église Saint-Laurent

    Directory of Open Access Journals (Sweden)

    Laurence de Finance

    2012-04-01

    Full Text Available L’église Saint-Laurent, à Paris, offre un bon examen de la renaissance du vitrail au XIXe siècle. Trois commandes passées successivement entre 1846 et 1888 à des artistes de renom témoignent de l’évolution de cet art depuis les premières recherches vers 1820 jusqu’à la parfaite maîtrise d’une technique, perdue au siècle précédent faute de commande. L’iconographie de ces trois séries de verrières, dont l’évolution stylistique est à mettre en parallèle avec les autres arts, reflètent les différentes dévotions d’une société liée aux pratiques gallicanes avant de rallier le courant ultramontain. Enfin, des différences au niveau des signatures témoignent de l’évolution de la perception du métier de peintre verrier par leurs contemporains.The Saint-Laurent church in Paris is a good example of how stained glass witnessed a renaissance during the nineteenth century. Three commissions signed between 1846 and 1888 with stained glass artists of renown bear witness to the evolution of this art from early researches in the 1820s to complete technical mastery, lost during the preceding century for lack of commands. The iconography of the three series of stained glass windows, which is to be compared with the evolution in other arts, reflects the different devotional features of a society linked to Gallican practices before going over to more ultramontain tendencies. Differences in the importance accorded to the signature of the artist also gives an indication of how the status of the stained glass artist was perceived by their contemporaries.

  14. Wuschel-related homeobox5 gene expression and interaction of CLE peptides with components of the systemic control add two pieces to the puzzle of autoregulation of nodulation.

    Science.gov (United States)

    Osipova, Maria A; Mortier, Virginie; Demchenko, Kirill N; Tsyganov, Victor E; Tikhonovich, Igor A; Lutova, Ludmila A; Dolgikh, Elena A; Goormachtig, Sofie

    2012-03-01

    In legumes, the symbiotic nodules are formed as a result of dedifferentiation and reactivation of cortical root cells. A shoot-acting receptor complex, similar to the Arabidopsis (Arabidopsis thaliana) CLAVATA1 (CLV1)/CLV2 receptor, regulating development of the shoot apical meristem, is involved in autoregulation of nodulation (AON), a mechanism that systemically controls nodule number. The targets of CLV1/CLV2 in the shoot apical meristem, the WUSCHEL (WUS)-RELATED HOMEOBOX (WOX) family transcription factors, have been proposed to be important regulators of apical meristem maintenance and to be expressed in apical meristem "organizers." Here, we focus on the role of the WOX5 transcription factor upon nodulation in Medicago truncatula and pea (Pisum sativum) that form indeterminate nodules. Analysis of temporal WOX5 expression during nodulation with quantitative reverse transcription-polymerase chain reaction and promoter-reporter fusion revealed that the WOX5 gene was expressed during nodule organogenesis, suggesting that WOX genes are common regulators of cell proliferation in different systems. Furthermore, in nodules of supernodulating mutants, defective in AON, WOX5 expression was higher than that in wild-type nodules. Hence, a conserved WUS/WOX-CLV regulatory system might control cell proliferation and differentiation not only in the root and shoot apical meristems but also in nodule meristems. In addition, the link between nodule-derived CLE peptides activating AON in different legumes and components of the AON system was investigated. We demonstrate that the identified AON component, NODULATION3 of pea, might act downstream from or beside the CLE peptides during AON. PMID:22232385

  15. Pyramid Lake Renewable Energy Project

    Energy Technology Data Exchange (ETDEWEB)

    John Jackson

    2008-03-14

    The Pyramid Lake Paiute Tribe is a federally recognized Tribe residing on the Pyramid Lake Reservation in western Nevada. The funding for this project was used to identify blind geothermal systems disconnected from geothermal sacred sites and develop a Tribal energy corporation for evaluating potential economic development for profit.

  16. Surface seiches in Flathead Lake

    Science.gov (United States)

    Kirillin, G.; Lorang, M. S.; Lippmann, T. C.; Gotschalk, C. C.; Schimmelpfennig, S.

    2015-06-01

    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 to 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 lake management problems related to the spatial seiche distribution, such as shoreline erosion, floods, and transport of sediments and invasive species in Flathead Lake.

  17. PYRAMID LAKE RENEWEABLE ENERGY PLAN

    Energy Technology Data Exchange (ETDEWEB)

    HIGH DESERT GEOCULTURE, LLC

    2009-06-06

    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.

  18. Europa's Great Lakes

    Science.gov (United States)

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

    2012-04-01

    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.

  19. Lake-floor sediment texture and composition of a hydrothermally-active, volcanic lake, Lake Rotomahana

    Science.gov (United States)

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

    2016-03-01

    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.

  20. Choking Lake Winnipeg

    Science.gov (United States)

    Byrne, J. M.; Little, L. J.; Dodgson, K. A.; MacDonald, R. J.; Graham, J.

    2009-12-01

    The problems of waterway eutrophication and coastal zone hypoxia are reaching epidemic proportions. Fresh water and coastal marine environments around the world are suffering unprecedented pollution loadings. We are developing an education program to address the dramatic need for public, community and K-12 education about the harsh impacts of elevated nutrient loads on fresh and marine water environments. The Lake Winnipeg watershed is adopted as the poster child of fresh water eutrophication in western North America. The watershed, one of the largest on the continent, is in rapid decline due to pollution, population pressures and water diversion. A concerted education program is needed to change personal and society actions that negatively impact the Winnipeg watershed; and the confluence of the watershed - Lake Winnipeg. But the education program goes beyond Lake Winnipeg. Negative impacts of nutrient loads are adversely affecting environments right to the oceans. Major dead zones that are expanding on our continental shelves due to nutrient overloading threaten to coalesce into extensive regions of marine life die-off. This presentation outlines the documentary education production process under development. We are building a series of Public Service Announcements (PSAs) for national television networks. The PSAs will direct educators, stakeholders and citizens to an associated website with educational video clips detailing the issues of eutrophication and hypoxia. The video clips or webisodes, present interviews with leading scientists. The discussions address the causes of the problems, and presents workable solutions to nutrient overloads from a variety of sources. The webisodes are accompanied by notes and advice to teachers on ways and means to use the webisodes in classrooms. The project is fully funed by a group of Canadian Community Foundations, with the understanding the work wil be available free to educators anywhere in the world. Our education

  1. L-Lake macroinvertebrate community

    Energy Technology Data Exchange (ETDEWEB)

    Specht, W.L.

    1996-06-01

    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.

  2. L-Lake macroinvertebrate community

    International Nuclear Information System (INIS)

    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

  3. 77 FR 9652 - Proposed CERCLA Administrative Cost Recovery Settlement; Lake Linden Superfund Site in Lake...

    Science.gov (United States)

    2012-02-17

    ... AGENCY Proposed CERCLA Administrative Cost Recovery Settlement; Lake Linden Superfund Site in Lake Linden... administrative settlement for recovery of past response costs concerning the Lake Linden Superfund Site in Lake..., Chicago, Illinois, C-14J, 60604, (312) 886-6609. Comments should reference the Lake Linden Superfund...

  4. 75 FR 20920 - Safety Zone; Lake Havasu Grand Prix, Lake Havasu, AZ

    Science.gov (United States)

    2010-04-22

    ... SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA00 Safety Zone; Lake Havasu Grand Prix, Lake Havasu, AZ... temporary safety zone upon the navigable waters of Lake Havasu on the Colorado River in Lake Havasu City, Arizona for the Lake Havasu Grand Prix. This temporary safety zone is necessary to provide for the...

  5. 27 CFR 9.127 - Cayuga Lake.

    Science.gov (United States)

    2010-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2010-04-01 2010-04-01 false Cayuga Lake. 9.127 Section... Lake. (a) Name. The name of the viticultural area described in this section is “Cayuga Lake.” (b) Approved maps. The appropriate map for determining the boundaries of the Cayuga Lake viticultural area...

  6. Citizen volunteer water monitoring on Lake Mitchell

    OpenAIRE

    Deutsch, W.

    2005-01-01

    Publication includes a timeline of AWW and the Lake Mitchell Home Owners and Boat Owners Association as well as: Lake Facts and Figures; Lake Oxygen and Temperature Cycles; Lake Clarity and Eutrophication; Water Quality Differences in the Watershed; Why Is Volunteer Monitoring Important?; and Alabama's Rich Water Resources and AWW.

  7. Hazards within the Bear Lake basin, Utah

    OpenAIRE

    Palacios, Patsy; Luecke, Chris; Robinson, Justin

    2007-01-01

    The Bear Lake basin developed from fault subsidence that continues today, slowly deepening the lake along the eastern side. The Bear Lake graben is about 5 miles long and 4.3-8.6 miles wide. It extends across the Utah-Idaho border and involves faults on both eastern and western sides of Bear Lake....

  8. Three Visits to Yamzhog Yumco Lake

    Institute of Scientific and Technical Information of China (English)

    QIAN

    2005-01-01

    The Yamzhog Yumco Lake is one of the three great holy lakes in Tibet. It is located in Nanggarze County in southern Tibet at an elevation of more than 4,400 meters. It covers some 800 square km and is the largest freshwater lake in the lake basin zone on the northern side of the Himalayas.

  9. 33 CFR 125.08 - Great Lakes.

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Great Lakes. 125.08 Section 125... VESSELS § 125.08 Great Lakes. The term Great Lakes as used in the regulations in this subchapter shall include the Great Lakes and their connecting and tributary waters....

  10. 27 CFR 9.34 - Finger Lakes.

    Science.gov (United States)

    2010-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2010-04-01 2010-04-01 false Finger Lakes. 9.34 Section... Lakes. (a) Name. The name of the viticultural area described in this section is “Finger Lakes.” (b) Approved maps. The appropriate maps for determining the boundaries of the Finger Lakes viticultural...

  11. Benthos of Spanish lakes and reservoirs

    OpenAIRE

    Prat i Fornells, Narcís; Real i Ortí, Montserrat; Rieradevall i Sant, Maria

    1992-01-01

    A summary of the results from the study of benthos of lakes and reservoirs in Spain is provided, with a list of the species found to date. Spanish natural lakes are smaller than European lakes; the largest is Lake Sanabria, of glacial origin, which is 3 Km long and half a kilorneter wide. Many are very small and situated in the mountains; more than 200 hundred have been recorded in Spain, but only in Lake Sanabria and Lake Banyoles have the benthos been studied. Lake Sanabria is a cold oligot...

  12. Analysis of Drought in Poyang Lake

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    [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 ...

  13. The Great Lakes' regional climate regimes

    Science.gov (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.).

  14. Salt transport in Songkhla Lake

    Directory of Open Access Journals (Sweden)

    Pornpinatepong, S.

    2005-07-01

    Full Text Available Salinity surveys in 1997 revealed that in the dry season salinity in Thale Sap Songkhla, Thale Sap and Thale Luang reached the maximum values of 30, 11 and 5 ppt, respectively. Among the complex system of the lake, Khlong Pak Ro showed a complicate seawater transport with a maximal salinity of 20 ppt. Incomplete mixing with a stratification at a depth of 2-3 m occured. The difference in salinity between the surface and the bottom was about 3 ppt. A vertically-averaged salt transport model was employed to simulate the salinity intrusion in the lake. The results showed quite good agreement with the observation. The model depicted a sharp drop of the water level at the entrance from the Gulf into the lake. The tidal energy then spread widely in Thale Sap Songkhla and continuously decreased to Thale Luang. The predicted salinity indicated that salt transport in the lake is governed by tide and water losses from the lake. Tidal movement generated a quasi-steady state of salinity in three months. The water losses for two months caused the salinity to rise 5.8 ppt/1 mm/day loss (~13 m3/sat Pak Ro. With a loss of 2.3 mm/day (~28 m3/s, the whole lake became brackish in three months. The salt entered the lake mainly through Khlong Luang, and only for 13 percent through Ao Thong Ben.

  15. Rehabilitation of Delavan Lake, Wisconsin

    Science.gov (United States)

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

    2009-01-01

    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.

  16. Advance and application of lake optics research

    Institute of Scientific and Technical Information of China (English)

    2005-01-01

    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.

  17. Monitoring Change in Great Salt Lake

    Science.gov (United States)

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

    2013-08-01

    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.

  18. Algae Bloom in a Lake

    OpenAIRE

    David Sanabria

    2008-01-01

    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...

  19. Key Lake spill. Final report

    International Nuclear Information System (INIS)

    On January 5, 1984 contaminated water overflowed a storage reservoir at the Key Lake uranium mill onto the ice on a neighboring lake, into a muskeg area and onto a road. Outflow continued for two days, partially undercutting a retaining dyke. This report concludes the spill was the result of poor operation by the Key Lake Mining Corp.. The environmental impact will be minimal after cleanup. Improvements can be made in the regulatory process, and it is necessary to prepare for possible future mishaps

  20. 2010 Great Lakes Restoration Initiative Bathymetric Lidar: Lake Superior

    Data.gov (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,...

  1. Near the Lake and around the Lake: Artists and Baikal

    OpenAIRE

    Marina Tkacheva; Iraida Fedchina

    2013-01-01

    The article considers several aspects of how Lake Baikal influences artists’ work:Baikal as a theme for painting and exhibiting;Creative events at Baikal;Baikal as a place where artists live;Half-amateur paintings for sale.

  2. Chase Lake Wetland Management District, Chase Lake Prairie Project: Annual narrative report: Calendar year 1994

    Data.gov (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...

  3. Chase Lake Wetland Management District, Chase Lake Prairie Project: Annual narrative report - 1993

    Data.gov (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...

  4. Annual narrative report 1995: Chase Lake Wetland Management District, Chase Lake Prairie Project

    Data.gov (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...

  5. Ruptures politiques et mutations comptables au bailliage d’Hesdin en Artois au XIVe siècle

    Directory of Open Access Journals (Sweden)

    Jean-Baptiste Santamaria

    2011-11-01

    Full Text Available L’évolution progressive des comptes tenus pour la recette du bailliage d’Hesdin en Artois au cours du XIVe siècle a entraîné leur radicale transformation, depuis des rouleaux de parchemins couvrant quelques mois jusqu’à d’amples registres reliant entre eux des séries entières de comptes annuels. Or parallèlement, le comté d’Artois changeait de main, passant notamment sous le contrôle des ducs capétiens de Bourgogne, de la monarchie française, du comte de Flandre, pour échoir finalement aux ducs Valois de Bourgogne. Les transformations institutionnelles ayant accompagné ces bouleversements, l’introduction de nouvelles méthodes de gestion comme les décharges et la standardisation opérée par les instances de contrôle ont entraîné une modification de l’usage de ces comptes, instruments de contrôle plus que de gestion. Les évolutions codicologiques constatées entre les années 1320 et 1390 renvoient à la complexification d’une ingéniérie financière fondée sur les jeux d’écriture, donc la virtualisation de l’argent, exigeant un instrument indispensable au contrôle de flux financiers à une échelle dépassant les cadres de l’Artois. À partir des années 1380, les spécialistes en charge de ce contrôle, à savoir les gens des comptes, furent les catalyseurs de cette transformation codicologique entamée une cinquantaine d’années plut tôt.The gradual change in accounts held for the recipe of the Bailiwick of Hesdin in Artois during the fourteenth century led to their radical transformation, from scrolls covering several months of detailed records linking a whole series of annual accounts. Yet at the same time, the County of Artois changed hands from particular under the control of Capetian dukes of Burgundy, the French monarchy, the Count of Flanders, to ultimately accrue to Valois dukes of Burgundy. The institutional changes that accompanied these political changes, the introduction of new

  6. Eliane Viennot, La France, les femmes et le pouvoir. Tome 2: Les résistances de la société (XVIIe-XVIIIe siècle, Paris, Perrin, 2008, 504 p.

    Directory of Open Access Journals (Sweden)

    Nicole Dufournaud

    2009-12-01

    Full Text Available Le point de départ de l'enquête en trois tomes d'Eliane Viennot est l'étude de la Loi salique, instrument d'exclusion des femmes de la vie publique. Le second couvre les XVIIe et XVIIIe siècles jusqu'à la veille de la Révolution française. Si l'ouvrage est chronologique, chaque siècle suit un découpage thématique.Le présent tome s'ouvre avec l'étude des deux régences du XVIIe siècle : celles de Marie de Médicis et d'Anne d'Autriche. L'auteure n'oublie pas les autres femmes de pouvoir : les fa...

  7. Du don aux églises au don pour le salut de l’âme en Occident (ive-xie siècle : le paradigme eucharistique

    Directory of Open Access Journals (Sweden)

    Eliana Magnani

    2009-01-01

    Full Text Available Ce sont les historiens du droit les premiers qui se sont intéressés à ce qu’il a été convenu d’appeler les « donations pro anima » : ces actes de donation indépendants des actes de dernière volonté, apparus au début du viie siècle à Ravenne et dès la deuxième moitié du siècle en Gaule  ou dans l’Espagne wisigothique , qui se sont multipliés et devenus le « prototype » de l’acte juridique à l’âge féodal . Les médiévistes, ensuite, incorporant sans les discuter les catégories de l’anthropologie...

  8. Préservation d’une identité hors du territoire régional : le cas des Maisons de Cantabrie en Espagne et dans le monde au XXème siècle

    Directory of Open Access Journals (Sweden)

    Emmanuelle Simon

    2007-07-01

    Full Text Available IntroductionSi l’on ne tient compte que du seul XXème siècle, nous savons que pour des raisons politiques, – comme la Guerre Civile et la Dictature de Franco – ou économiques – principalement au début du siècle et dans les années 1960 – des Espagnols se sont éloignés de leur terre natale pour aller vivre dans d’autres régions et d’autres pays. Catalans, Basques, Galiciens, Andalous, Asturiens ou Cantabres, ils ont souvent ressenti le besoin de se retrouver selon leurs origines géographiques d...

  9. « Hommes fainéants et indolents, femmes dissolues… » Paresse et travail à Santa Fe de Bogota (Nouvelle Grenade), XVIIIe siècle

    OpenAIRE

    Lopez-Bejarano, Pilar

    2007-01-01

    Cette recherche explore, pour la ville de Santa Fe de Bogota (Nouvelle-Grenade), différents aspects de la problématique historique des rapports de travail et des jugements de paresse adressés à la population tout au long du XVIIIe siècle. L’étude propose ainsi une approche locale et urbaine des Réformes du XVIIIe siècle (Reformas Borbónicas), en articulant différentes échelles qui vont de la position générale des colonies dans l’empire ibérique, aux formes particulières de travail des habitan...

  10. Les réseaux économiques dans le secteur de la mode vestimentaire à Shanghai entre la fin du XIXe siècle et les années 1930

    OpenAIRE

    Brasó-Broggi, Carles

    2015-01-01

    L’industrie de la mode à Shanghai s’est développée entre les dernières décennies du XIXe siècle et les années 1930, et a joué un rôle important dans l’industrialisation du pays. Cet article tente de définir la relation entre la production et la consommation dans l’industrie textile de Shanghai. Une des caractéristiques de la mode est sa capacité à innover en créant de nouvelles tendances distinctes tout en absorbant différentes influences et la mode shanghaïenne au début du XXe siècle était u...

  11. Des réseaux marchands aux consommateurs : la diffusion des indiennes en Europe méditerranéenne dans la seconde moitié du XVIIe siècle

    Directory of Open Access Journals (Sweden)

    Olivier Raveux

    2012-12-01

    Full Text Available Consommée à l’échelle planétaire dès la fin du xviie siècle, l’indienne est le premier produit manufacturé des débuts de la mondialisation. C’est à partir des années 1650 que le commerce de ces cotonnades fabriquées en Asie prend son essor sur le vieux continent. En apportant les avantages d’une fibre textile peu utilisée jusqu’alors et en offrant de nouveaux répertoires de décoration, l’indienne finit par transformer la culture matérielle européenne, pour devenir au xviiie siècle le principa...

  12. 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

    2003-01-01

    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.

  13. Les salaires des ouvriers du bâtiment à Gérone au XVème siècle

    Directory of Open Access Journals (Sweden)

    Victor, Sandrine

    1996-06-01

    Full Text Available During the XVth century in Girona there was a lot of building offering abundant documentation for a study of the building world. Thanks to the building accounts of the Cathedral and its fortifications, it is possible to study workers'wages and living standards. First of all, a typology of wages needs to be done. Most workers were paid on a daily basis. This kind of salary might vary according to season, activity or professional qualifications. Other workers were on a piece-work basis: for example, traginers, ferrers or argenters. The evolution of wages during the XVth century in Girona follows the general trend observed by J. Hamilton. The wages of best qualified workers remain stable, while those of less qualified vary with a tendency to increase. Then, there is a compression of the salaries. However, this rise is not enough to set off the XVth century's inflation. The living standards of the whole population of building paid workers tend to decrease. Between 1465 and 1490, a master stone cutter loses 42% of his real wage, and a worker 21%. A typical Budget underlines the fact that only a bachelor artisan had a relatively favourable standard of living. In these conditions, the upkeep of a family brought problems.[fr] Les nombreux chantiers qui s'étendent au long du XVème siècle fournissent une documentation abondante sur le monde du bâtiment à Gérone. Grâce aux comptes de la fabrique de la cathédrale et des fortifications, il est possible de dresser une étude sur les salaires et le niveau de vie des principaux métiers de la construction. Il faut d'abord établir une typologie des salaires. La majeure partie des ouvriers est payée à la journée. Cette rémunération peut souffrir de variations selon la saison, l'activité au sein du chantier ou les qualifications professionnelles. Les autres ouvriers touchent un salaire à la tâche ou à la pièce. C'est le cas des traginers, des ferrers ou des argenters. L'évolution des salaires

  14. Big Lake Dam Inspection Report

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This report summarizes an inspection of the Big Lake Dam that was done in September of 1983. The inspection did not reveal any conditions that constitute and...

  15. Isotope investigation of Lake Malawi

    International Nuclear Information System (INIS)

    A vertical tritium and stable isotope profile shows that in the meromictic Lake Malawi water mixes slowly but at a significantly higher rate than in Lake Tanganyika, which has similar morphological characteristics. The tritium balance indicates that half or more of the tritium stored in the lake derives from molecular exchange with the atmospheric moisture. The tritium profile enables the vertical mixing rate in the lake to be computed. For this, a three-box model is used corresponding to epilimnion, metalimnion and hypolimnion. The computation indicates that on the average about 25% of the water is exchanged every year between the epilimnion and the metalimnion and about 20% between the metalimnion and the hypolimnion. (author)

  16. Great Lakes Initiative (GLI) Clearinghouse

    Data.gov (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...

  17. Management recommendations: Sand Lake Complex

    Data.gov (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...

  18. Devils Lake WMD Summer Tour

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This document is for a tour of Devils Lake Wetland Management District in North Dakota. It includes maps and summaries of the WMD objectives and management...

  19. Folsom Lake 2005 Sedimentation Survey

    Data.gov (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...

  20. Management recommendations: Benton Lake Complex

    Data.gov (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...

  1. Great Lakes Environmental Research Laboratory

    Data.gov (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...

  2. The Formation of Lake Stars

    CERN Document Server

    Tsai, Victor C

    2007-01-01

    Star patterns, reminiscent of a wide range of diffusively controlled growth forms from snowflakes to Saffman-Taylor fingers, are ubiquitous features of ice covered lakes. Despite the commonality and beauty of these ``lake stars'' the underlying physical processes that produce them have not been explained in a coherent theoretical framework. Here we describe a simple mathematical model that captures the principal features of lake-star formation; radial fingers of (relatively warm) water-rich regions grow from a central source and evolve through a competition between thermal and porous media flow effects in a saturated snow layer covering the lake. The number of star arms emerges from a stability analysis of this competition and the qualitative features of this meter-scale natural phenomena are captured in laboratory experiments.

  3. Benton Lake National Wildlife Refuge

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This report describes the history of Benton Lake NWR including refuge development, accomplishments, management, wildlife, and waterfowl. Future management plans are...

  4. Lake Turkana National Parks Kenya.

    OpenAIRE

    2005-01-01

    Lake Turkana is the largest, most northerly and most saline of Africa's Rift Valley lakes and an outstanding laboratory for the study of plant and animal communities. The three National Parks are a stopover for migrant waterfowl and are major breeding grounds for the Nile crocodile and hippopotamus. The Koobi Fora deposits are rich in pre-human, mammalian, molluscan and other fossil remains and have contributed more to the understanding of Quaternary palaeoenvironments than any other site on ...

  5. Paraître du deuil, d’un lieu à l’autre. Les veuves en Midi toulousain au XVIIIe siècle

    Directory of Open Access Journals (Sweden)

    Christine Dousset

    2012-02-01

    Full Text Available Sous l’Ancien Régime le veuvage oblige les femmes à changer d’apparence pour revêtir des habits de deuil, en particulier pendant l’année qui suit la mort du mari. À Toulouse, de la fin du XVIIe à la fin du XVIIIe siècle, se dessinent des permanences et des nouveautés qui apparaîtront de manière plus évidente dans la première partie du siècle suivant. L’importance symbolique de la tenue de la veuve est soulignée par l’obligation juridique faite aux héritiers du mari de lui fournir ses habits de deuil. Cependant, comme le montrent les inventaires après décès, les codes vestimentaires du deuil restent socialement discriminants, entre le respect d’une étiquette très élaborée par les veuves de la noblesse et les difficultés matérielles des femmes des milieux populaires urbains dont il est très difficile de préciser les pratiques. Ils se transforment cependant à la faveur des changements de la mode féminine et de la diffusion par l’imprimé, tel l’Almanach historique de la ville de Toulouse, du modèle parisien et curial dans les années 1780.Appearances of Mourning. The widows in Toulouse area in the Eighteenth century -During the "Ancien Regime", widowhood forced women to change their appearance to wear clothes of mourning, especially during the year following the death of their husband. In Toulouse, from the end of the Seventeenth century to the end of the Eightheenth century, we can see continuities and changes that will appear more prominently in the first part of the Nineteenth century. The legal obligation for the husband’s heirs to provide the widow’s « habits de deuil » shows the symbolic importance of mourning dress. However, as shown in the probate inventories, social groups use different mourning dress codes. The noble women must respect a very complicated etiquette whereas the women of the working classes are too poor and we don’t know exactly how they are dressed when they become

  6. Via Lyon: Parcours de romans et mutations éditoriales au XVIe siècle. Partie II. La circulation des textes entre Lyon et Paris

    Directory of Open Access Journals (Sweden)

    Gaëlle Burg

    2015-07-01

    Full Text Available La première partie du dossier Via Lyon (Carte Romanze 2/2 [2014] analysait le rôle de carrefour économique et culturel de la ville de Lyon dans la constitution d’une identité éditoriale des romans publiés en France au XVIe siècle. L’étude de ces «parcours de romans» conduit à replacer, en cette seconde partie du dossier, la notion d’«étape lyonnaise» dans la dynamique qui anime les deux principaux centres d’imprimerie français de la Renaissance. L’étude des pérégrinations éditoriales, de Paris à Lyon et de Lyon à Paris, de Lancelot du Lac (G. Burg, de Valentin et Orson (M. Colombo Timelli et de Méliadus chevalier de la Croix (A. Réach-Ngô met ainsi au jour les diverses formes de circulation, d’adaptation et de réappropriation que les ateliers parisiens et lyonnais confèrent aux œuvres romanesques qui passent sous leurs presses tout au long du siècle. The first part of the file Via Lyon (Carte Romanze 2/2 [2014] analyzed the role of economic and cultural crossroad of Lyon city in the constitution of an editorial identity of novels published in France in the sixteenth century. The study of these «novels’ route» leads to situate the concept of «Lyon step» in the dynamics which animates the two major French printing centers of the Renaissance. The editorial peregrinations, from Paris to Lyon and from Lyon to Paris, of three french novels, Lancelot du Lac (G. Burg, Valentin and Orson (M. Colombo Timelli and Méliadus chevalier de la Croix (A. Réach-Ngô, shows the various forms of circulation, adaptation and reappropriation that various Parisian and Lyon workshops give to novels they print throughout the century. 

  7. The size-distribution of Earth's lakes.

    Science.gov (United States)

    Cael, B B; Seekell, D A

    2016-01-01

    Globally, there are millions of small lakes, but a small number of large lakes. Most key ecosystem patterns and processes scale with lake size, thus this asymmetry between area and abundance is a fundamental constraint on broad-scale patterns in lake ecology. Nonetheless, descriptions of lake size-distributions are scarce and empirical distributions are rarely evaluated relative to theoretical predictions. Here we develop expectations for Earth's lake area-distribution based on percolation theory and evaluate these expectations with data from a global lake census. Lake surface areas ≥8.5 km(2) are power-law distributed with a tail exponent (τ = 1.97) and fractal dimension (d = 1.38), similar to theoretical expectations (τ = 2.05; d = 4/3). Lakes distributed. An independently developed regional lake census exhibits a similar transition and consistency with theoretical predictions. Small lakes deviate from the power-law distribution because smaller lakes are more susceptible to dynamical change and topographic behavior at sub-kilometer scales is not self-similar. Our results provide a robust characterization and theoretical explanation for the lake size-abundance relationship, and form a fundamental basis for understanding and predicting patterns in lake ecology at broad scales. PMID:27388607

  8. Geographic Analysis of Alaska Lake Districts

    Science.gov (United States)

    Arp, C. D.; Jones, B. M.; Zimmerman, C. E.

    2007-12-01

    The state of Alaska has over 400,000 lakes greater than 0.01 km2 in surface area covering approximately 3.3% of the landscape. As in most lake-rich regions, these lakes are unevenly distributed on the landscape. So in order to better understand how lakes are organized on the landscape and relate this geographic organization to other climatologic, geologic, and biogeographic characteristics, we analyzed the spatial distribution of Alaska lakes. Using a combination of numerical abundance and surface-area extent of lakes, we selected lake density thresholds to identify and delineate 22 lake districts in Alaska. The total area of these 22 lakes districts occupy 16% of Alaska, yet encompass 64% of lakes and 76% of lake surface-area. The three largest lake districts are associated with the Yukon-Kuskokwin Delta, the Northern Arctic Coastal Plain, and the mountain front of the Alaskan Range on the Alaska Peninsula. Interestingly, these largest lake districts are covered by >17% lakes, while most of the smaller lake districts we identified have Parks (NP) and National Wildlife Refuges (NWR). Not surprisingly, 12 of these lake districts occur partly or wholly within NWRs, and all but two are associated with other state or federally managed parks or wildlife refuges. Analysis of lake districts in Alaska, or other regions on Earth, may prove to be useful for better understanding lake change, aquatic and terrestrial habitats, and regional hydrologic budgets and regimes. Such fresh views of the landscape may become increasingly important for improving natural resource science and management in Alaska, where future climate change is predicted to be very rapid.

  9. FISH FAUNA OF THE HWAJINPO LAKE,KOREA

    Institute of Scientific and Technical Information of China (English)

    JUNKIL; Choi; OSAMU; Mitamura; YASUSHI; Seike; KAORU; Fujinaga

    2006-01-01

    There are sevenlagoons onthe east coast of Korea,including Kyeongpo Lake,Hyang Lake,Mae Lake,Chung-cho Lake,Yeoungrang Lake,Songji Lake and HwajinpoLake.They are all originally natural and brackish waterlakes.Therefore,these lakes are not only historically veryimportant but also have high values for geological,andecological sciences.Natural lakes like lagoons are different from man-made lakes.That is,water level in natural lakes is almostconstant,cline by waterside is not much,and wet landvegetation is well...

  10. Caohai Dianchi Lake Water Pollution Control Plan

    OpenAIRE

    Wang, Zhe

    2010-01-01

    Caohai is located in the lowest of Lake Dian area, and is in this region the only wastewater containing water body. Lake Dian is in the natural succession process and has entered a period of aging and eutrofication. The lake is shallow lake, and therefore the lake water self-purification ability is weaker and weaker. The major rivers into Lake DIan run through some urban areas, villages, farms, industrial areas; therefore a large number of hazardous substances and nutrients are carried from t...

  11. Bear Lake Basin : History, geology, biology, people

    OpenAIRE

    Palacios, Patsy; Luecke, Chris; Robinson, Justin

    2007-01-01

    Bear Lake is a large, deep lake located on the border of Utah and Idaho in Rich County Utah and Bear Lake County Idaho. It was formed through seismic activity along a fault on the eastern side of the lake. Tectonic shifts of the plates along this fault resulted in a lake basin that is over 200 ft deep along the eastern shore with a gradual slope to the western shore. The lake water has high concentrations of calcium carbonate because of high levels of evaporation typical of this semi-arid ...

  12. Heihu (黑湖 - Black Lake)

    OpenAIRE

    Elosua, Miguel

    2011-01-01

    This photo was taken in October 2011. Heihu is located in the Altai Mountains, in the northern tip of Xinjiang, bordering Mongolia and Kazakhstan. The lake is adjacent to the larger Lake Kanas, China's deepest alpine lake, a popular destination among Chinese tourists, some of whom come to the lake in search of a mysterious lake creature that according to legend feeds on horse and cattle. Kazakh nomads inhabit the area, camping around the lake during the summer and descending to the cities as ...

  13. Lake water quality mapping from Landsat

    Science.gov (United States)

    Scherz, J. P.

    1977-01-01

    In the project described remote sensing was used to check the quality of lake waters. The lakes of three Landsat scenes were mapped with the Bendix MDAS multispectral analysis system. From the MDAS color coded maps, the lake with the worst algae problem was easily located. The lake was closely checked, and the presence of 100 cows in the springs which fed the lake could be identified as the pollution source. The laboratory and field work involved in the lake classification project is described.

  14. L’Antiquité dans la guerre au siècle des Lumières, Représentation de la guerre et référence antique dans la France du xviiie siècle

    Directory of Open Access Journals (Sweden)

    Thierry Widemann

    2010-05-01

    Full Text Available Date de la soutenance : le 16 octobre 2009Composition du juryMonsieur Jean - Pierre Bois, professeur honoraire à l’Université de Nantes, Monsieur Bruno Colson, professeur à l’Université Notre - Dame de la Paix à Namur, Monsieur Hervé Drévillon, professeur à l’Université Paris I Panthéon – Sorbonne, Monsieur François Hartog, directeur d’études à l’École des hautes études en Sciences Sociales (directeur de thèse.RésuméL’omniprésence de l’Antiquité au xviiie siècle a naturellement conduit les h...

  15. Femmes en armes au XVIe siècle : Les dames " doi[ven]t avoir ceur d'homme " : une invitation à participer à l'idéal féodal masculin du métier d'armes au XVIe siècle.

    OpenAIRE

    Dufournaud, Nicole

    2010-01-01

    La question de la violence des femmes sous l'Ancien Régime a été particulièrement étudiée pour le XVIIIe siècle, bien représenté grâce aux travaux d'Arlette Farge et Cécile Dauphin, Dominique Godineau et Jean-Clément Martin. Les XVIe et XVIIe siècles n'y sont traités qu'au travers des guerres de Religion et de la Fronde : trop souvent les femmes y sont soit représentées comme victimes soit comme des sujets d'amusement ou de curiosité. Les sources ne sont pas aussi catégoriques : les femmes se...

  16. Investigation of the dramatic changes in lake level of the Bosten Lake in northwestern China

    Science.gov (United States)

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

    2015-01-01

    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.

  17. Analysis of eutrophication state and trend for lakes in China

    OpenAIRE

    JIN XIANGCAN

    2003-01-01

    The article analyzes the present state and trend of eutrophication of lakes in China and concludes that lakes throughout the country are commonly undergoing the process of eutrophication: most of urban lakes are facing hypertrophication, many mediumsized lakes are of eutrophic state, some lakes even approaching to hypertrophic level. The five large freshwater lakes are in the condition of eutrophication, especially Lake Caohu and Lake Taihu are already in the state of eutrophication, water qu...

  18. A census of colonially breeding waterbirds on Lake Louise and Skilak Lake, Alaska, 21-22 July 1981

    Data.gov (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...

  19. La patria criolla entre localisme exacerbé et solidarité continentale dans la vice-royauté de Lima au XVIIe siècle

    Directory of Open Access Journals (Sweden)

    Bernard Lavallé

    2012-01-01

    Full Text Available Cet article montre comment le créolisme andin du XVIIe siècle fonctionnait et s’affirmait notamment par rapport à une relation très forte à son environnement immédiat, la patria, d’où sa forte coloration localiste et la faible présence dans son discours, voire l'absence, de référents géographiques plus vastes. Il lui était cependant possible d’élargir son regard, et lorsqu’il devait faire face en Espagne aux préjugés péninsulaires, il pouvait aussi faire preuve d'une conscience américaine continentale.Este artículo muestra como el criollismo andino del siglo XVII funcionaba y se afirmaba a partir de une relación muy fuerte con su entorno inmediato, la patria. De ahí su fuerte coloración localista y la escasa presencia, o la ausencia, en su discurso de referentes geográficos más amplios. Sin embargo le era posible ensanchar su mirada, y cuando tenía que enfrentarse en España con los prejuicios peninsulares podía también manifestar una conciencia continental.

  20. Commis, artisans, ouvriers. Les métamorphoses du salariat dans l’Égypte du XIXe siècle

    Directory of Open Access Journals (Sweden)

    Pascale Ghazaleh

    2012-01-01

    Full Text Available Cet article se propose d’analyser l’évolution du travail salarié en Égypte pendant la première moitié du XIXe siècle à la lumière des modifications apportées au système des charges vénales, qui permet aux sujets du sultan d’accéder au statut de ses serviteurs en achetant le droit de toucher une rémunération. Les réformes juridiques, militaires, économiques et administratives qu’institue Muhammad ‘Alî (r. 1805-1848 en Égypte vont ériger les instances de l’État naissant en source de rémunération et point de référence primaire des détenteurs de charges. Pendant la période 1840-1860, les recrutements de fonctionnaires et de travailleurs connaîtront un repli ; et, lorsque la question du travail salarié est abordée à part entière dans le discours public des années 1880, c’est sous son versant politique, comme métaphore de la tutelle coloniale.

  1. Armes et Armures dans l'Oeuvre Épique et Historique de Jean d'Outremeuse (XIVe Siècle

    Directory of Open Access Journals (Sweden)

    Gaier, Claude

    1983-12-01

    Full Text Available JEAN d'Outremeuse fut et reste le plus populaire des vieux auteurs qui ont écrit l'histoire de l'ancienne principauté de Liège. Cette notoriété, il la doit sans doute à l'usage de la langue vulgaire -un français teinté de wallon- et aussi à l'extraordinaire profusion de détails pitttoresques qui émaillent ses narrations, où vingt générations d'érudits, de littérateurs et d'échotiers du passé ont puisé leur inspiration. Pourtant, la critique historique de notre siècle n'a eu aucune peine à démontrer que pareil ascendant n'était pas mérité, puisque Jean d'Outremeuse avait bel et bien recopié d'autres récits ou inventé de toutes pièces la matière qu'il n'avait pas trouvée dans des sources antérieures. De sorte que, à quelques nuances près, l'admiration sans bornes qu'on lui vouait jadis à désormais cédé la place au scepticisme, voire au dénigrement systématique à son égard.

  2. La littérature dans le champ philosophique français de la première moitié du XXe siècle.

    Directory of Open Access Journals (Sweden)

    Isabelle Kalinowski

    2004-04-01

    Full Text Available Une comparaison franco-allemande fait ressortir la suspicion spécifique de la philosophie française institutionnelle de la première moitié du siècle à l’égard de la littérature, dont témoigne notamment la composition des revues philosophiques. Plus conflictuel que ceux de Bachelard ou de Sartre, le cas de Jean Wahl illustre la difficulté de concilier une position universitaire et des intérêts poétiques–avant que la réception de Heidegger ne vienne résoudre cette contradiction.A French/German comparison underlines the specific suspicion of the French institutional philosophy of the first half of the century towards literature, which is revealed by the composition of philosophical reviews. More conflictual than Bachelard’s or Sartre’s, Jean Wahl’s case illustrates the difficulty to conciliate a universitary position and poetical interests before the reception of Heidegger solved the contradiction.

  3. Lake Naivasha, Kenya

    Science.gov (United States)

    2008-01-01

    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. 14 CFR 93.69 - Special requirements, Lake Campbell and Sixmile Lake Airports.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 2 2010-01-01 2010-01-01 false Special requirements, Lake Campbell and Sixmile Lake Airports. 93.69 Section 93.69 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION... Anchorage, Alaska, Terminal Area § 93.69 Special requirements, Lake Campbell and Sixmile Lake Airports....

  5. 77 FR 65574 - Lake Andes National Wildlife Refuge Complex, Lake Andes, SD; Draft Comprehensive Conservation...

    Science.gov (United States)

    2012-10-29

    ... Complex. We started this process through a notice in the Federal Register (72 FR 27328; May, 15, 2007... Fish and Wildlife Service Lake Andes National Wildlife Refuge Complex, Lake Andes, SD; Draft... assessment (EA) for the Lake Andes National Wildlife Refuge Complex (Complex), which includes Lake Andes...

  6. 33 CFR 110.127 - Lake Mohave and Lake Mead, Nevada and Arizona.

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 1 2010-07-01 2010-07-01 false Lake Mohave and Lake Mead, Nevada and Arizona. 110.127 Section 110.127 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY ANCHORAGES ANCHORAGE REGULATIONS Special Anchorage Areas § 110.127 Lake Mohave and Lake Mead, Nevada and Arizona. (a) Willow...

  7. Acoustic estimates of abundance and distribution of spawning lake trout on Sheboygan Reef in Lake Michigan

    Science.gov (United States)

    Warner, D.M.; Claramunt, R.M.; Janssen, J.; Jude, D.J.; Wattrus, N.

    2009-01-01

    Efforts to restore self-sustaining lake trout (Salvelinus namaycush) populations in the Laurentian Great Lakes have had widespread success in Lake Superior; but in other Great Lakes, populations of lake trout are maintained by stocking. Recruitment bottlenecks may be present at a number of stages of the reproduction process. To study eggs and fry, it is necessary to identify spawning locations, which is difficult in deep water. Acoustic sampling can be used to rapidly locate aggregations of fish (like spawning lake trout), describe their distribution, and estimate their abundance. To assess these capabilities for application to lake trout, we conducted an acoustic survey covering 22 km2 at Sheboygan Reef, a deep reef (trout, that lake trout were 1–2 m above bottom, and that spawning took place over specific habitat. Lake trout density exhibited a high degree of spatial structure (autocorrelation) up to a range of ~190 m, and highest lake trout and egg densities occurred over rough substrates (rubble and cobble) at the shallowest depths sampled (36–42 m). Mean lake trout density in the area surveyed (~2190 ha) was 5.8 fish/ha and the area surveyed contained an estimated 9500–16,000 large lake trout. Spatial aggregation in lake trout densities, similarity of depths and substrates at which high lake trout and egg densities occurred, and relatively low uncertainty in the lake trout density estimate indicate that acoustic sampling can be a useful complement to other sampling tools used in lake trout restoration research.

  8. Exploring trends, causes, and consequences of declining lipids in Lake Superior lake trout

    Science.gov (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...

  9. 76 FR 2579 - Safety Zone; Lake Mead Intake Construction, Lake Mead, Boulder City, NV

    Science.gov (United States)

    2011-01-14

    ... SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA00 Safety Zone; Lake Mead Intake Construction, Lake Mead... establishing a safety zone on the navigable waters of Lake Mead in support of the construction project for Lake... the timing of the construction. Immediate action is necessary to ensure the safety of commercial...

  10. 75 FR 13232 - Safety Zone; Lake Mead Intake Construction, Lake Mead, Boulder City, NV

    Science.gov (United States)

    2010-03-19

    ... SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA00 Safety Zone; Lake Mead Intake Construction, Lake Mead... establishing a safety zone on the navigable waters of Lake Mead in support of the construction project for Lake... ensure the public's safety. Background and Purpose Vegas Tunnel Construction will be...

  11. Global Lake and River Ice Phenology Database

    Data.gov (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...

  12. Biota - 2011 Vegetation Inventory - Marsh Lake, MN

    Data.gov (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...

  13. Togiak National Wildlife Refuge lake surveys, 1984

    Data.gov (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 20s for the Goodnews Lakes to...

  14. Medicine Lake NWR Water Use Report- 1944

    Data.gov (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...

  15. Karluk Lake sockeye salmon studies 1984: Draft

    Data.gov (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...

  16. Lake evaporation estimates in tropical Africa (Lake Ziway, Ethiopia)

    Science.gov (United States)

    Vallet-Coulomb, Christine; Legesse, Dagnachew; Gasse, Françoise; Travi, Yves; Chernet, Tesfaye

    2001-05-01

    Estimates of evaporation from an open shallow lake in tropical Africa (Lake Ziway, Main Ethiopian Rift) are made by using monthly hydrometeorological data available for the past three decades. On the one hand, annual average estimates are inferred from three climatic approaches, which can be applied in areas with limited meteorological data. The lake energy balance yields an evaporation rate of 1780 mm yr -1, assuming a Bowen ratio of 0.15 (that of Lake Victoria). The Penman method gives an annual evaporation rate of 1870 mm. The complementary relationship lake evaporation model (CRLE) applied on monthly averaged values of air temperature, air humidity and sunshine duration gives 1730 mm yr -1. The sensitivity of each method to changes in input variables is analyzed in order to test the stability of the resulting estimates. This helps discuss uncertainties and possible inter-annual variations of the evaporation rate. On the other hand, the monthly lake level records together with precipitation and river discharge data between 1969 and 1990, allow us to estimate the water balance, providing an annual rate of 1937 mm for the combined evaporation and groundwater losses. The chloride budget is used to discriminate the groundwater from the evaporation loss. It gives us an annual evaporation rate of 1740 mm and a corresponding groundwater loss of 200 mm yr -1. The groundwater loss estimate is of the same order of magnitude as the surface outflow, but the associated error in the former is significant because the result is sensitive to the poorly known chloride content of river inflows. Our results can be used to forecast the impact of increased water consumption in the basin.

  17. Long Lake National Wildlife Refuge : Easement District No. 1 : May to August 1944

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This narrative report cover activities during May to August 1944 for Long Lake, Wildfang Lake, Lost Lake, Florence Lake, Moraine Lake, Canfield Lake, Hutchinson...

  18. The most acidified Austrian lake in comparison to a neutralized mining lake

    OpenAIRE

    Moser, Michael; Weisse, Thomas

    2011-01-01

    This study investigated two mining lakes located in the north of Lower Austria. These lakes arose 45 years ago when open cast lignite mining ceased. The lakes are separated by a 7-m wide dam. Due to the oxidation of pyrite, both lakes have been acidified and exhibit iron, sulphate, and heavy metal concentrations several orders of magnitude higher than in circumneutral lakes. The water column of both lakes is divided into two layers by a pronounced chemocline. The smaller mining lake (AML), wi...

  19. 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

    2005-08-01

    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

  20. Profundal oligochaete assemblages in Palaearctic lakes

    OpenAIRE

    Timm, Tarmo

    2012-01-01

    The profundal oligochaete fauna is mostly formed of species present also in shallower waters. Endemic taxa have developed only in ancient rift lakes like Lake Baikal. "Common" lakes, mostly of glacial or volcanic origin, are too ephemeral for speciation. In the profundal of larger European oligotrophic lakes, there can occur about 10 tubificid and lumbriculid species. With a decline in dissolved oxygen in water, only 1-2 of them will remain, Tubifex tubifex often being the last surv...

  1. Monitoring change in Great Salt Lake

    Science.gov (United States)

    Naftz, David L.; Angeroth, Cory E.; Freeman, Michael L.; Rowland, Ryan C.; Carling, Gregory

    2013-01-01

    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.

  2. Bathythermal habitat use by strains of Great Lakes- and Finger Lakes-origin lake trout in Lake Huron after a change in prey fish abundance and composition

    Science.gov (United States)

    Bergstedt, Roger A.; Argyle, Ray L.; Krueger, Charles C.; Taylor, William W.

    2012-01-01

    A study conducted in Lake Huron during October 1998–June 2001 found that strains of Great Lakes-origin (GLO) lake trout Salvelinus namaycush occupied significantly higher temperatures than did Finger Lakes-origin (FLO; New York) lake trout based on data from archival (or data storage) telemetry tags that recorded only temperature. During 2002 and 2003, we implanted archival tags that recorded depth as well as temperature in GLO and FLO lake trout in Lake Huron. Data subsequently recorded by those tags spanned 2002–2005. Based on those data, we examined whether temperatures and depths occupied by GLO and FLO lake trout differed during 2002–2005. Temperatures occupied during those years were also compared with occupied temperatures reported for 1998–2001, before a substantial decline in prey fish biomass. Temperatures occupied by GLO lake trout were again significantly higher than those occupied by FLO lake trout. This result supports the conclusion of the previous study. The GLO lake trout also occupied significantly shallower depths than FLO lake trout. In 2002–2005, both GLO and FLO lake trout occupied significantly lower temperatures than they did in 1998–2001. Aside from the sharp decline in prey fish biomass between study periods, the formerly abundant pelagic alewife Alosa pseudoharengus virtually disappeared and the demersal round goby Neogobius melanostomus invaded the lake and became locally abundant. The lower temperatures occupied by lake trout in Lake Huron during 2002–2005 may be attributable to changes in the composition of the prey fish community, food scarcity (i.e., a retreat to cooler water could increase conversion efficiency), or both.

  3. Preliminary isotope studies in Poyang Lake

    International Nuclear Information System (INIS)

    Poyang Lake is the largest fresh water lake in China, and the largest wetland protection area in Asia. The lake serves as the largest buffer for the Yangtze River as well. In order to make better understanding of the water dynamics, water balance, water chemistry, and the relations between lake, rivers and groundwater, isotope investigation has been carried out systematically for one and a half hydrological years. The paper reports the preliminary results of the study. (author)

  4. Preliminary isotope studies of Poyang Lake, China

    International Nuclear Information System (INIS)

    Poyang Lake is the largest fresh water lake in China, and the largest wetland protection area in Asia. The lake serves as the largest buffer for the Yangtze River as well. In order to make better understanding of the water dynamics, water balance, water chemistry, and the relations between lake, rivers and groundwater, isotope investigation has been carried out systematically for one and a half hydrological years. The paper will report the preliminary results from this program. (author)

  5. The Tomb Statues beside Dongqian Lake

    Institute of Scientific and Technical Information of China (English)

    RaoRao

    2005-01-01

    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.

  6. Seasonal dynamics of phytoplankton community in the bitter lakes and temsah lake

    OpenAIRE

    Nassar, M.Z.; Shams El-Din, N.G.

    2006-01-01

    Water and phytoplankton samples were sampled on a seasonally basis, from autumn 2002 to summer 2003 at five stations located in Bitter Lakes and four at Temsah Lake. A total of 116 taxa were identified, among which 72 taxa of diatoms, 16 dinoflagellates, 14 chlorphytes, 11 cyanophytes, two euglenophytes and one silicoflagellate species. Bitter Lakes were more diversified than Temsah Lake, although the highest population density was recorded at Temsah Lake. A total of 108 taxa were identified ...

  7. The role of satellite lakes in conservation of fish species diversity in the Lake Kyoga basin

    OpenAIRE

    Ogutu-Ohwayo, R.; Wandera, S.B.; Namulemo, G.; Mbabazi, D.

    1999-01-01

    Lakes Victoria and Kyoga had, a diverse fish fauna, which was important as food for local population and valuable in scientific studies. Over the past twenty years, the diversity of fish in these lakes had declined due to over-exploitation, introduction of new fish species including the piscivorous Nile perch and degradation of fish habitat. Studies of satellite lakes in the Victoria and Kyoga lake basins suggested that some of these lakes harboured species which had been lost from the mai...

  8. The influence of load and lake morfology on lake water quality

    OpenAIRE

    Skubic, Jana

    2006-01-01

    In this graduation thesis, the Imboden model is used as a basis for the prediction of the limiting nutrient concentrations in the lake. The Imboden model is a simplified phosphorous model, based on the phosphorus balance in a lake, presuming phospherous is the only limiting factor of lake eutrophication. The model separately describes the processes in the epilimnion and in the hypolimnion. The limiting nutrient concentrations in the lake are strongly influenced by lake morphology and water in...

  9. A Synoptic Climatology of Heavy Rain Events in the Lake Eyre and Lake Frome Catchments

    OpenAIRE

    Michael John Pook; James eRisbey; Caroline eUmmenhofer; Timothy eCohen; Peter eBriggs

    2014-01-01

    The rare occasions when Lake Eyre in central, southern Australia fills with water excite great interest and produce major ecological responses. The filling of other smaller lakes such as Lake Frome, have less impact but can contribute important information about the current and past climates of these arid regions. Here, the dominant synoptic systems responsible for heavy rainfall over the catchments of Lake Eyre and Lake Frome since 1950 are identified and compared. Heavy rain events are defi...

  10. A synoptic climatology of heavy rain events in the Lake Eyre and Lake Frome catchments

    OpenAIRE

    Pook, Michael J.; Risbey, James S.; Ummenhofer, Caroline C.; BRIGGS Peter R.; Cohen, Timothy J.

    2014-01-01

    The rare occasions when Lake Eyre in central, southern Australia fills with water excite great interest and produce major ecological responses. The filling of other smaller lakes such as Lake Frome have less impact but can contribute important information about the current and past climates of these arid regions. Here, the dominant synoptic systems responsible for heavy rainfall over the catchments of Lake Eyre and Lake Frome since 1950 are identified and compared. Heavy rain events are defin...

  11. Eutrophication of Shallow Lakes: Modeling and Management. The Lake Balaton Case Study

    OpenAIRE

    Somlyody, L.; Herodek, S.; Fischer, J

    1983-01-01

    The phenomenon of eutrophication is more irregular in character and less satisfactorily understood for shallow water bodies than for deep lakes. Research, initiated by IIASA, focussed of Lake Balaton, Hungary, as the subject of a case study. Three main considerations promoted the selection of Lake Balaton: 1) a large amount of data was available, due to Hungarian research activities; 2) the lake possesses the "typical" properties of shallow lakes; and 3) serious economic interests are associ...

  12. 27 CFR 9.83 - Lake Erie.

    Science.gov (United States)

    2010-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2010-04-01 2010-04-01 false Lake Erie. 9.83 Section 9... TREASURY LIQUORS AMERICAN VITICULTURAL AREAS Approved American Viticultural Areas § 9.83 Lake Erie. (a) Name. The name of the viticultural area described in this section is “Lake Erie.” (b) Approved...

  13. 27 CFR 9.128 - Seneca Lake.

    Science.gov (United States)

    2010-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2010-04-01 2010-04-01 false Seneca Lake. 9.128 Section... Lake. (a) Name. The name of the viticultural area described in this section is “Seneca Lake”. (b) Approved Maps. The appropriate maps for determining the boundary of the Seneca Lake viticultural area...

  14. 36 CFR 13.1208 - Lake Camp.

    Science.gov (United States)

    2010-07-01

    ... 36 Parks, Forests, and Public Property 1 2010-07-01 2010-07-01 false Lake Camp. 13.1208 Section 13... § 13.1208 Lake Camp. Leaving a boat, trailer, or vehicle unattended for more than 72 hours at the facilities associated with the Lake Camp launching ramp is prohibited without authorization from...

  15. 27 CFR 9.99 - Clear Lake.

    Science.gov (United States)

    2010-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2010-04-01 2010-04-01 false Clear Lake. 9.99 Section 9... TREASURY LIQUORS AMERICAN VITICULTURAL AREAS Approved American Viticultural Areas § 9.99 Clear Lake. (a) Name. The name of the viticultural area described in this section is “Clear Lake.” (b) Approved...

  16. Salt Lake in Chaidamu Basin

    Institute of Scientific and Technical Information of China (English)

    王良华

    2007-01-01

    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...

  17. Periodic structures of Great Lakes levels using wavelet analysis

    OpenAIRE

    Cengiz, Taner M.

    2011-01-01

    The recently advanced approach of wavelet transforms is applied to the analysis of lake levels. The aim of this study is to investigate the variability of lake levels in four lakes in the Great Lakes region where the method of continuous wavelet transform and global spectra are used. The analysis of lake-level variations in the time-scale domain incorporates the method of continuous wavelet transform and the global spectrum. Four lake levels, Lake Erie, Lake Michigan, Lake Ontario, and Lake S...

  18. Lake Volume Monitoring from Space

    Science.gov (United States)

    Crétaux, J.-F.; Abarca-del-Río, R.; Bergé-Nguyen, M.; Arsen, A.; Drolon, V.; Clos, G.; Maisongrande, P.

    2016-03-01

    Lakes are integrators of environmental change occurring at both the regional and global scale. They present a wide range of behavior on a variety of timescales (cyclic and secular) depending on their morphology and climate conditions. Lakes play a crucial role in retaining and stocking water, and because of the significant global environmental changes occurring at several anthropocentric levels, the necessity to monitor all morphodynamic characteristics [e.g., water level, surface (water contour) and volume] has increased substantially. Satellite altimetry and imagery are now widely used together to calculate lake and reservoir water storage changes worldwide. However, strategies and algorithms to calculate these characteristics are not straightforward, and specific approaches need to be developed. We present a review of some of these methodologies by using lakes over the Tibetan Plateau to illustrate some critical aspects and issues (technical and scientific) linked to the observation of climate change impact on surface waters from remote sensing data. Many authors have measured water variation using the limited remote sensing measurements available over short time periods, even though the time series are probably too short to directly link these results with climate change. Indeed, there are many processes and factors, like the influence of lake morphology, that are beyond observation and are still uncertain. The time response for lakes to reach a new state of equilibrium is a key aspect that is often neglected in current literature. Observations over a long period of time, including maintaining a constellation of comprehensive and complementary satellite missions with service continuity over decades, are therefore necessary especially when the ground gauge network is too limited. In addition, the design of future satellite missions with new instrumental concepts (e.g., SAR, SARin, Ka band altimetry, Ka interferometry) will also be suitable for complete

  19. 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

    2006-01-01

    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

  20. Lava Lakes in Io's Paterae

    Science.gov (United States)

    Radebaugh, J.; McEwen, A. S.; Milazzo, M.; Davies, A. G.; Keszthelyi, L. P.; Geissler, P.

    2002-05-01

    New Galileo images and Galileo and Cassini temperature data lend credence to previous proposals that some of the paterae on Io contain lava lakes, similar in some ways to those observed on Earth. Galileo's October 2001 I32 flyby produced spectacular new high resolution observations of Io's paterae, their margins, and floors. Images reveal where lavas have filled Emakong Patera and overtopped its margins. Landslides from the peaks of Tohil Mons are not present on the adjacent floor of a dark patera, perhaps because they have slumped into a molten lava pit. Dark lavas have filled and drained back from colorful Tupan Patera, leaving a ring of material on its walls. This patera also shows evidence of interaction between molten sulfur and silicate lavas, a relationship observed at the terrestrial Poas Volcano (Francis et al., 1980, Nature 283, 754-756; Oppenheimer and Stevenson, 1990, La Recherche 21,1088-1090). The extremely uniformly dark materials in many other paterae could also be lava lakes. Pele Volcano on Io, in particular, has previously been considered a lava lake based on several characteristics (Davies et al., 2001, JGR 106,33,079-33,103). Recent analyses of eclipse images of Pele from Cassini reveal average temperatures of 1375 K, with variations on short (~10 minute) timescales, consistent with active fountaining in a lava lake. Similar oscillations around high temperatures over these time scales are seen in terrestrial lava lakes, such as at Kupaianaha (Flynn et al., GRL, 19,6461-6476, 1993) and Erta Ale (Bessard, Caillet and others, in progress). Nightside high resolution (60 m/pixel) images from Galileo I32 reveal a region of overturning and convection, with some areas reaching in excess of 1800 K, verifying very high-temperature components identified in high-resolution NIMS data (Lopes et al., 2001, JGR, 106, 33,053-33,078). This region is ringed with small hotspots, comparable to locations of breakup and fountaining at the margins of many terrestrial

  1. Physical Limnology in Lake Banyoles

    OpenAIRE

    Casamitjana, Xavier; Colomer, Jordi; Roget, Elena; Serra Putellas, Teresa

    2006-01-01

    The main physical long-scale processes occurring in Lake Banyoles are reviewed as a tribute to Prof. Margalef. These processes include the water fluxes below the surface of the lake, the behavior of the sediment in suspension in the basins, the heat fluxes at the surface and at the bottom layers, the internal seiching, the formation of a baroclinic current due to differences in cooling between the two lobes, the mixing dynamics, the meromictic behavior of some of the basins and the f...

  2. Noble gases in Tagish Lake

    OpenAIRE

    Grady, Monica; Verchovsky, Sasha; Franchi, Ian; Wright, Ian; Pillinger, Colin

    2001-01-01

    From the introduction: Tagish Lake has been classified as a CI2 chondrite [1] with an interstellar grain abundance enhanced over that of CI1 and CM2 chondrites [2]. Noble gases have been used as markers for the presence of exotic, presolar grains in chondritic meteorites: Xe-HL (nanodiamonds) and Xe-s/Ne-E (SiC). We have measured 4He, Ne, Ar and Xe in whole-rock Tagish Lake, and an orthophosphoric acid-resistant residue, in an effort to define more precisely the...

  3. Gas hydrates of Lake Baikal

    OpenAIRE

    Khlystov, O.; De Batist, M.; Shoji, H; Nishio, S.; L. Naudts; J. Poort

    2011-01-01

    This paper reviews some of the results of recent gas-hydrate studies in Lake Baikal, the only fresh-water lake in the world containing gas hydrates in its sedimentary infill. We give a historical overview of the different investigations and discoveries and highlight some recent breakthroughs in our understanding of the Baikal hydrate system. The importance of mapping mud volcanoes and gas seeps is stressed, as these are currently the only locations where gas hydrates at or very close to the f...

  4. Protecting the endangered lake salmon

    Energy Technology Data Exchange (ETDEWEB)

    Soimakallio, H.; Oesch, P. [ed.

    1997-11-01

    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

  5. Managing Lakes and Lake Basins for Sustainable Use

    OpenAIRE

    World Bank

    2009-01-01

    Lakes and reservoirs are the world's major repository of accessible freshwater. They are central to the livelihoods and economies of a large fraction of the world's population, as well as being centers of aquatic biodiversity. They play a central role in integrated water resources management. Yet in spite of their importance and the growing threats to them, they have not received sufficien...

  6. Post Audit of Lake Michigan Lake Trout PCB Model Forecasts

    Science.gov (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...

  7. Feeding ecology of lake whitefish larvae in eastern Lake Ontario

    Science.gov (United States)

    Johnson, James H.; McKenna, James E.; Chalupnicki, Marc A.; Wallbridge, Tim; Chiavelli, Rich

    2009-01-01

    We examined the feeding ecology of larval lake whitefish (Coregonus clupeaformis) in Chaumont Bay, Lake Ontario, during April and May 2004-2006. Larvae were collected with towed ichthyoplankton nets offshore and with larval seines along the shoreline. Larval feeding periodicity was examined from collections made at 4-h intervals over one 24-h period in 2005. Inter-annual variation in diet composition (% dry weight) was low, as was spatial variation among collection sites within the bay. Copepods (81.4%), primarily cyclopoids (59.1%), were the primary prey of larvae over the 3-year period. Cladocerans (8.1%; mainly daphnids, 6.7%) and chironomids (7.3%) were the other major prey consumed. Larvae did not exhibit a preference for any specific prey taxa. Food consumption of lake whitefish larvae was significantly lower at night (i.e., 2400 and 0400 h). Substantial variation in diet composition occurred over the 24-h diel study. For the 24-h period, copepods were the major prey consumed (50.4%) and their contribution in the diet ranged from 29.3% (0400 h) to 85.9% (1200 h). Chironomids made up 33.4% of the diel diet, ranging from 8.0% (0800 h) to 69.9% (0400 h). Diel variation in the diet composition of lake whitefish larvae may require samples taken at several intervals over a 24-h period to gain adequate representation of their feeding ecology.

  8. Conversion et culture dans le monde grec du IVe siècle ap. J.-C. Conversion and culture in the 4th century AD Greek world

    Directory of Open Access Journals (Sweden)

    Pierre-Louis Malosse

    2009-10-01

    Full Text Available Rarement la conversion – concept, événement, acte – a tenu une place telle qu’au IVe siècle après Jésus-Christ, dans les années qui mènent de la conversion d’un empereur (Constantin à celle de l’empire. Dans le monde oriental, dominé par la culture hellénique, la conversion religieuse rencontre un modèle depuis longtemps reconnu, celui de la conversion philosophique (ou à la philosophie. Entre l'une et l'autre, il existe une certaine porosité, plus ou moins consciente, comme l'attestent en des directions opposées le cas des milieux philosophiques alexandrins – y compris peut-être Arios –, ou celui de Julien. D'autre part, à l'orée du IVe siècle, la conversion chrétienne a déjà une longue histoire. La nouveauté de l'Antiquité tardive, outre le changement d'échelle, du petit nombre à la masse et du marginal à l'officiel avec le soutien de l'État, est de poser la question du rapport de la conversion religieuse à la culture traditionnelle, question qui ne se posait pas à propos de la conversion philosophique, puisque celle-ci était une composante de cette culture, question qui se pose particulièrement au moment où les convertis prétendent prendre en charge la culture. Plus précisément, il s'agit d'une confrontation avec la paideia, concept qui embrasse et unit étroitement culture et éducation. Chez les auteurs qui s’y réfèrent, que ce soit explicitement ou implicitement, la conversion se définit par rapport à la paideia tour à tour en termes d’exclusion, de concurrence et de complémentarité.Conversion –as a concept, as an event and as a deed – was seldom as imporant as it was during Forth Century AD, from the conversion of an emperor (Constantine to the conversion of the whole Empire. In the Greek speaking and thinking East, religious conversion came across philosophical conversion model, which had been known and admitted for a long time. So, philosophical conversion could

  9. Isotope techniques in lake water studies

    International Nuclear Information System (INIS)

    Freshwater lakes are among the most easily exploitable freshwater resources. Lakes are also recognized as major sedimentological features in which stored material can be used to study recent climate and pollution evolution. To adequately preserve these important landscape features, and to use them as climatic archives, an improved understanding of processes controlling their hydrologic and bio-geochemical environments if necessary. This article briefly describes the IAEA activities related to the study of lakes in such areas as lake budget, lake dynamics, water contamination, and paleolimnological investigations

  10. Evaluation of offshore stocking of Lake Trout in Lake Ontario

    Science.gov (United States)

    Lantry, B.F.; O'Gorman, R.; Strang, T.G.; Lantry, J.R.; Connerton, M.J.; Schanger, T.

    2011-01-01

    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

  11. Le lecteur du xviie siècle et l'argot. Problèmes de lisibilité et de pertinence

    Directory of Open Access Journals (Sweden)

    Claudine Nédélec

    2007-11-01

    Full Text Available Nous nous proposons d'étudier ici quelquesdifficultés présentées par la mise en place du lecteur virtuel, et la substitution du lecteur réel au lecteur virtuel, dans des textes qui utilisent un langage "risqué", l'argot, parce qu'il pose à la fois des problèmes de compréhension (de façon réelle ou fantasmatique, il n'est argot que s'il est réputé secret et de tolérabilité (comment un écrivain peut-il parler à ses lecteurs le langage du crime ?. Comme le lecteur réel est un être dans l'histoire, nous nous servirons comme base d'analyse de trois textes situés dans un contexte historique précis, le début du 17ème siècle : un extrait du roman intitulé la Vie généreuse des Mercelots, Gueux et Bohémiens (roman anonyme signé du pseudonyme de Péchon de Ruby, Lyon, 1596, un poème tiré des Premières Oeuvres poétiques du capitaine Lasphrise (par Marc Papillon, seigneur de Lasphrise, Paris, 1597 et une scène de la Comédie de proverbes (par Adrien de Montluc, comte de Cramail, Paris, 1634. Mais il est d'abord nécessaire de définir quelque peu ce qu'il faut entendre par argot.

  12. Exempla et sentences des Antiques dans la littérature politique du XVe siècle en Castille

    Directory of Open Access Journals (Sweden)

    Béatrice Leroy

    2013-06-01

    Full Text Available La communication se propose d’analyser les principaux traités de Diego de Valera (Défense des Femmes Vertueuses, Miroir de Véritable Noblesse, Doctrinal des Princes ; la Suma de Política de Rodrigo Sánchez de Arevalo ; les Claros Varones de Castilla d’Hernando del Pulgar. Ces trois auteurs du XVe siècle castillan citent, autant ou plus que les textes des Testaments et la littérature ecclésiastique, les philosophes et les historiens grecs et latins, tirant de leurs exempla et de leurs conclusions des leçons de bon gouvernement, de comportement social et politique, de sagesse et de moralité.La comunicación se propone analizar los principales tratados de Diego de Valera (la Defensa de las virtuosas mujeres, el Espejo de verdadera nobleza, y el Doctrinal de príncipes ; la Suma de Política de Rodrigo Sánchez de Arévalo ; los Claros Varones de Castilla de Hernando del Pulgar. Estos tres autores del siglo XV castellano citan, tanto y más que los textos de los Testamentos y la literatura eclesiástica, los filósofos e historiadores griegos y latinos, sacando de sus ejemplos y de sus conclusiones lecciones de buen gobierno, de comportamiento social y político, de sabiduría y moralidad.

  13. La gastronomie dans les guides de voyage : de la richesse industrielle au patrimoine culturel, France XIXe-début XXe siècle

    Directory of Open Access Journals (Sweden)

    Julia Csergo

    2011-06-01

    Full Text Available Les guides de voyage constituent une source majeure pour une histoire de l’alimentation. Ils nous éclairent sur les temps et les lieux des productions et des consommations alimentaires, sur la construction des images des territoires gourmands et des stéréotypes culinaires. Au-delà, ils constituent, surtout à partir du XIXe siècle qui voit la naissance concomitante de la notion de « gastronomie » (pratique sociale qui s’organise autour de savoir et de savoir-faire, de rites, de gestes et de discours et de celle de « patrimoine » (monument historique, un des principaux médias par lequel appréhender le processus de culturalisation et de patrimonialisation de la gastronomie qui devient, pour le touriste, une forme de consommation culturelle, au même titre que celle des sites et monuments.Travel guides constitute a major source for an history of food. They shed light on times and places of the food productions and consumptions, on the building of the « gourmands » territories and of culinary stereotypes. Moreover, they constitute, especially since the 19h century, in which emerge the notions of “gastronomy” (a social practice organized around knowledge and know-how, rituals, gestures and discourses and “patrimony” (historic building, one of the main mass media relating the process of gastronomy becoming a cultural legacy becoming, for the tourist, a way of cultural consumption, just like sites and monuments.

  14. Voyageuses occidentales et impérialisme : l’Orient à la croisée des représentations (XIXe siècle

    Directory of Open Access Journals (Sweden)

    Isabelle Ernot

    2011-11-01

    Full Text Available Cet article s’appuie sur une dizaine de récits de voyages, effectués par des Françaises dans les régions arabo-musulmanes durant la seconde moitié du XIXe siècle. Ils constituent un matériau permettant d’articuler étude sur le genre et l’impérialisme. Le propos concerne particulièrement le rôle des Occidentales dans la construction d’un discours qui accompagne la colonisation et participe de la définition des hiérarchies sociales et/ou raciales. L’analyse comporte deux versants : le premier s’intéresse aux éléments mobilisés dans la production d’une représentation de la femme arabo-musulmane, figure de l’assujettissement et contre-modèle de l’Occidentale ; le second fait retour sur les locutrices elles-mêmes et questionne l’origine de leurs représentations.This article explores how gender and imperialism are articulated in the writings of a number of French women travelers to Eastern and Arab countries in the second half of the 19th century. It argues for the role of these Western women travelers in the construction of a discourse that accompanied the process of colonialism and contributed to the defining of social and/or racial hierarchies. The article begins with an examination of the rhetoric used to produce a representation of the oppressed Arab-Muslim woman, in opposition to that of the Western woman. It then examines the travel writers themselves in an effort to discern the origins of the representations they develop.

  15. Technologie pour le forage scientifique en eau très profonde au XXIe siècle Deepwater Technology for Scientific Drilling in the 21st Century

    Directory of Open Access Journals (Sweden)

    Sparks C.

    2006-11-01

    Full Text Available Le présent article aborde les slimline risers et les systèmes de forage minier qui sont deux domaines technologiques dont le potentiel doit permettre d'améliorer le forage et le carottage scientifiques en eau très profonde au cours du XXIe siècle. Cet article présente les avantages et les inconvénients des slimline risers, par rapport aux risers de forage utilisés par l'industrie pétrolière. Le potentiel de matériaux nouveaux est évoqué. Des analyses préliminaires de slimline risers fabriqués de différents matériaux (acier, titane, aluminium et composite pour forage scientifique par 4 000 m de profondeur d'eau sont présentées. La seconde partie de l'article aborde les moyens d'adapter les systèmes de forage minier aux grands fonds. This paper addresses slimline riser systems and mining drilling systems which are two items of technology that have the potential to improve scientific drilling and coring in deep water in the 21st century. The paper presents the advantages and disadvantages of drilling with a slimline riser, compared to an oil industry riser. The potential of new materials are discussed. Preliminary analyses of slimline risers made from different materials (steel, titanium, aluminium and composite for 4000 m of water are presented. In the second part of the paper, ways of adapting mining systems to deepwater are discussed.

  16. Wagnerianos, flâneurs, hombres-masa. Los ambientes sinestésicos en la arquitectura fin-de-siècle

    Directory of Open Access Journals (Sweden)

    Eduardo Prieto

    2014-10-01

    Full Text Available Con su énfasis en la contaminación entre las disciplinas, así como en el papel que otorgan a la integración de los sentidos humanos en la percepción del espacio, las investigaciones contemporáneas sobre las “atmósferas” habitadas tienen un antecedente apenas señalado por la historiografía: la arquitectura fin-de-siècle. En la Francia de finales del siglo XIX la sinestesia se convierte en un tema de moda que, procedente de la recién fundada estética psicológica, pronto desbordará sus primitivos límites para alcanzar la arquitectura; en Alemania, por su parte, la noción romántica de la Gesamtkunstwerk encontrará en el teatro de Wagner un nuevo campo donde las artes colaborarán para producir sorprendes ambientes oníricos. En paralelo, la percepción sinestésica se transformará en el leitmotiv de las instalaciones concebidas para el disfrute multisensorial de los miembros de una incipiente cultura de masas, y dará pie a arquitecturas tan lúdicas como técnica­mente sofisticadas: las construcciones para ferias internacionales. Los ambientes sinestésicos para flâneurs, wagnerianos y hombres-masa serán, así, el germen de los pabellones electroacústicos de Le Corbusier, Iannis Xenakis o Charles y Ray Eames, y de las experiencias de integración ambiental entre las artes propias de Jean Labatut, Charles Moore y, en general, buena parte de las vanguardias de las décadas de 1950 y 1960.

  17. Les ornements liturgiques au XIXe siècle : origine, fabrication et commercialisation, l’exemple du diocèse de Moulins (Allier

    Directory of Open Access Journals (Sweden)

    Aurore Chatard

    2012-04-01

    Full Text Available Depuis le concile Vatican II, la volonté de l’Église catholique de tendre vers une plus grande simplicité pour réduire la distance, tant physique que psychologique, entre ses ministres et l’ensemble des fidèles a contribué à abandonner certains fastes de la liturgie. Aujourd’hui, l’étude des ornements liturgiques rend compte de leur place au cours des rites et de l’attention portée à leur réalisation. Le XIXe siècle est souvent considéré comme l’âge d’or de leur confection. Une recherche menée dans le diocèse de Moulins a permis de mettre au jour la richesse et la diversité des collections de cette époque, ainsi que le renouvellement de la portée symbolique et politique dont ils ont fait l’objet.Since the II Vatican Council, the wish of the Catholic Church for simplification in order to reduce the distance, both physically and psychologically, between their Ministers and all the believers, contributed to abandon some complex aspects of the liturgy. Nowadays, the liturgical ornaments studying, reports their role during the rites and the particular attention paid to their realization. The XIXth century is often considered as the golden age of their confection. A research led in the diocese of Moulins, allowed to reveal the wealth and the variety of this period’s collections, as well as the renewal of their symbolic and political mean.

  18. Édition, diffusion et réception des premiers ouvrages sur le commerce et la comptabilité en Russie au XVIIIe siècle

    Directory of Open Access Journals (Sweden)

    Natalia Platonova

    2010-12-01

    Full Text Available À partir du XVIe siècle, des ouvrages destinés à aider les négociants dans leurs pratiques commerciales et en particulier à leur apprendre les techniques de la comptabilité circulent à travers l’Europe. Il faut attendre la seconde moitié du XVIIIe siècle pour qu’ils apparaissent en Russie. En prenant la mesure du rôle grandissant des marchands dans l’État et la société, la monarchie tenta d’organiser l’enseignement commercial et favorisa la diffusion de cette littérature. Ces premiers écrits, leur contenu, les conditions de leur diffusion, leur impact sur l’instruction et les pratiques des marchands de cette époque font l’objet de la présente étude. Cela donne l’occasion de souligner la parenté des publications russes avec l’ensemble des ouvrages de même nature imprimés en Europe occidentale entre les XVIe et XVIIIe siècles. En effet, leur parution ouvre la voie à la pénétration en Russie des savoirs et des pratiques de la comptabilité moderne. Toutefois, cette littérature n’a pas capté l’intérêt immédiat des milieux marchands russes. Ceux-ci se révèlent majoritairement indifférents à la tenue des livres en partie double et restent attachés aux modes traditionnels de formation professionnelle et de gestion des affaires. En cause, le caractère à la fois novateur et complexe du contenu de ces ouvrages, mais aussi les conditions générales dans lesquelles se déroulait l’exercice du commerce à cette époque et l’identité sociale des marchands. C’est pourquoi l’impact de la littérature commerciale et comptable du XVIIIe siècle sur les pratiques marchandes ne doit pas être surestimé. Cette littérature a surtout marqué la pensée comptable dont le développement s’amorce à partir de cette époque en Russie.  Since the sixteenth century, books written for to help the merchants in their practices and in particular to learn how to keep accounts spread across Europe. Such

  19. The lakes of the Jordan Rift Valley

    International Nuclear Information System (INIS)

    This paper presents a summary of the proceedings of a workshop on the Lakes of the Jordan Rift Valley that was held in conjunction with the CRP on The Use of Isotope Techniques in Lake Dynamics Investigations. The paper presents a review of the geological, hydrogeological and physical limnological setting of the lakes in the Jordan Rift Valley, Lake Hula, Lake Kinneret and the Dead Sea. This is complemented by a description of the isotope hydrology of the system that includes the use of a wide range of isotopes: oxygen-18, deuterium, tritium, carbon-14, carbon-13, chlorine isotopes, boron-11 and helium-3/4. Environmental isotope aspects of the salt balances of the lakes, their palaeolimnology and biogeochemical tracers are also presented. The scope of application of isotopic tracers is very broad and provides a clear insight into many aspects of the physical, chemical and biological limnology of the Rift Valley Lakes. (author)

  20. Glacial lakes Buni and Jezerce: Albania

    Directory of Open Access Journals (Sweden)

    Milivojević Milovan

    2005-01-01

    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.

  1. Seasonal Reversals of Groundwater Flow Around Lakes and the Relevance to Stagnation Points and Lake Budgets

    Science.gov (United States)

    Anderson, Mary P.; Munter, James A.

    1981-08-01

    Several researchers have observed seasonal reversals in the direction of groundwater flow around lakes. If these reversals are prolonged and are accompanied by the formation of a stagnation point, they may have a significant effect on a lake's water and nutrient budgets. The formation of a stagnation point at a flow-through lake (i.e., a lake that receives groundwater through part of the lake basin and recharges the groundwater system over the rest of the lake basin) is accomplished by the formation of a groundwater mound on the downgradient side of the lake. In this paper the seasonal formation of a stagnation point at Snake Lake, Wisconsin, is investigated with the aid of two-dimensional transient computer models applied in cross section and areally. The analysis demonstrates the potential for the seasonal formation of a stagnation point at a flow-through lake and provides some insight into the transient development of the stagnation point.

  2. CHED Events: Salt Lake City

    Science.gov (United States)

    Wink, Donald J.

    2009-03-01

    The Division of Chemical Education (CHED) Committee meetings planned for the Spring 2009 ACS Meeting in Salt Lake City will be in the Marriott City Center Hotel. Check the location of other CHED events, the CHED Social Event, the Undergraduate Program, Sci-Mix, etc. because many will be in the Salt Palace Convention Center.

  3. Beijing Star Lake Ecology Park

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    @@ 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.

  4. Eutrophication of lakes and rivers

    Science.gov (United States)

    Eutrophication is an ecological process, akin to aging, in which a water body is increasingly enriched with organic matter. While the most obvious signs of eutrophication in lakes and rivers involve algal blooms and fish kills, the systemic of eutrophication, although profound, are often not as noti...

  5. Salt Lake 2002 mascot story

    OpenAIRE

    2014-01-01

    The story of the Salt Lake 2002 Olympic Winter Games Mascots is inspired from our culture. Centuries ago, the first inhabitants etched in stone the images of animals that shared their world. These simple pictograms became the foundation for cultural legends — oral stories that inspired generations to respect and admire the natural world of Utah..

  6. Lake Baikal Bibliography, 1989- 1999

    OpenAIRE

    Limnological Institute of RAS SB

    1999-01-01

    This is a bibliography of 839 papers published in English in 1989- 1999 by members of Limnological Institute of RAS SB and by their partners within the framework of the Baikal International Center for Ecological Research. Some of the titles are accompanied by abstracts. Coverage is on different aspects of Lake Baikal.

  7. The Lake Poets in Romanticism

    Institute of Scientific and Technical Information of China (English)

    李陈晶

    2015-01-01

    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.

  8. Schistosomiasis in Lake Malawi villages

    DEFF Research Database (Denmark)

    Madsen, Henry; Bloch, Paul; Makaula, Peter;

    2011-01-01

    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...

  9. BACTERIAL INHIBITORS IN LAKE WATER

    Science.gov (United States)

    The populations of six bacterial genera fell rapidly after their addition to sterile lake water but not after their addition to buffer. The decline in numbers of two species that were studied further, Klebsiella pneumoniae and Micrococcus flavus, occurred even when the buffer was...

  10. Stable isotope composition of Earth's large lakes

    Science.gov (United States)

    Jasechko, S.; Gibson, J. J.; YI, Y.; Birks, S. J.; Sharp, Z. D.

    2011-12-01

    Lakes cover about three percent of Earth's continental area. Large lakes can significantly influence lake shore and regional climates by increasing specific humidity during evaporation and by moderating air temperatures. Stable isotopes of oxygen and hydrogen can be used to quantify lake evaporation, providing a supplementary and often cost-advantageous alternative to conventional hydrologic approaches that require over lake monitoring. Further, stable isotopes in lake sediments are an established tool in paleolimnology; however, interpreting changes to a lake's past isotope composition requires a comprehensive understanding of contemporary controls. Here, δ18O and δ2H values of water in modern lakes exceeding roughly five hundred square kilometres are compiled (n > 35). Voluminous and seasonally mixed lakes - such as the North American Great Lakes - have the most homogenous stable isotope compositions, while perennially-stratified and shallow lakes show greater variability. A rudimentary stable isotope mass balance is used to assess evaporation fluxes from large lakes on Earth. The approach taken simultaneously constrains evaporation outputs for both oxygen and hydrogen stable isotopes by accounting for lake effects on the overlying atmosphere. Model development highlights important considerations such as isotopic stratification (Tanganyika), disequilibrium isotopic mass balances (Baikal), and non-steady hydrologic balances. Further, the isotope composition of Earth's continental surface water reservoir is calculated. This value - weighted to volume - is δ18O = -7.5±1.7 per mille relative to standard mean ocean water. The compiled data may be a useful tracer of continental evaporate in global atmospheric water cycle studies and could be coupled to climate models capable of incorporating oxygen-18 and deuterium tracers to improve or validate calculations of lake effects on regional water cycling.

  11. Contaminant Monitoring Strategy for Henrys Lake, Idaho

    Energy Technology Data Exchange (ETDEWEB)

    John S. Irving; R. P. Breckenridge

    1992-12-01

    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

  12. Development of indicators for assessment of Lake Malawi Basin in an Integrated Lake Basin Management (ILBM) framework

    OpenAIRE

    Clara Limbitso Chidammodzi; Victor Shiholo Muhandiki

    2015-01-01

    This paper sought to understand the current state of the management environment of Lake Malawi Basin, deduce a lake vision and develop indicators for assessing Integrated Lake Basin Management (ILBM) in the lake basin. The premise of the study was that targeted indicators are necessary to effectively monitor the lake basin and manage it sustainably. The study focused on the Malawian side of the lake. Interviews, field observations and review of existing lake management and indicator developme...

  13. Lake volume monitoring from space

    Science.gov (United States)

    Crétaux, Jean-Francois; Abarca Del Rio, Rodrigo; Berge-Nguyen, Muriel; Arsen, Adalbert; Drolon, Vanessa; Maisongrande, Philippe

    2016-04-01

    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

  14. Martine Gallois, L’Idéal héroïque dans Lion de Bourges, poème épique du XIVe siècle

    OpenAIRE

    Suard, François

    2014-01-01

    Il fallait une certaine audace pour entreprendre l’étude d’une des chansons de geste les plus volumineuses du xive siècle, Lion de Bourges (LdB, 34298 alexandrins), éditée en 1980 par William Kibler, Jean-Louis Picherit et Thelma Fenster, et pour frayer au lecteur un chemin dans une multitude d’aventures se déroulant à peu près sur la totalité de l’univers connu et faisant intervenir une myriade de personnages. Disons tout de suite que cette audace a permis à Martine Gallois, dans cette publi...

  15. Rouet d’ici, rouet d’ailleurs : du rouet de France et du carkhâ dans la poésie hindi du 20e siècle

    OpenAIRE

    Gricourt, Marguerite

    2013-01-01

    International audience Present both in French and Indian poetry and tradition, the spinning wheel, Hindi carkhâ, took on a new symbolic value in India during the struggle for independence. This article offers the translation with commentary of some poems which are representative of the nationalistic current that pervaded Hindi poetry in the first half of the twentieth century. Rouet d'ici, rouet d'ailleurs : du rouet de France et du carkhâ dans la poésie hindi du 20 e siècleElément prés...

  16. Soleil, lune, étoiles à l’horizon littéraire médiéval, ou les signes de la lumière (Textes du xiiie siècle)

    OpenAIRE

    Colliot, Régine

    2014-01-01

    Soleil, Lune, Etoiles : leur présence, si l’on fait appel à ses souvenirs de lectures, n’est pas très fréquente dans les oeuvres romanesques ou épiques du xiiième siècle. Mais si leurs apparitions sont rares, elles ont toujours, ou presque, une fonction que l’on peut qualifier dès maintenant de magique ou de mystique ; soleil, lune, étoiles remplissent alors le rôle de signes ; ils annoncent des situations, des conjonctures romanesques parfois conventionnelles, parfois plus originales : ils s...

  17. Travail, immigration et relations sociales à travers les parcours d’individus et familles d’une ville de l’Ancien Régime (Turin, xviiie siècle)

    OpenAIRE

    Beatrice Zucca Micheletto

    2009-01-01

    Cet article envisage une utilisation des archives judiciaires qui, loin de refaire l’histoire sociale de la criminalité, a pour but d’interroger le système des normes et valeurs qui affectent les trajectoires professionnelles d’individus et familles qui fréquentent ou habitent la ville de Turin au xviiie siècle. Dans l’histoire des métiers artisanaux, abordés par l’unique biais des sources produites par les corporations elles-mêmes, la continuité et la stabilité du travail constituent le véri...

  18. Determinação de metodologia para oisolamento de protoplastos de tangerina Cleópatra (Citrus reshni Hort. Methodology choice for protoplast isolation in Cleopatra mandarin (Citrus reshni Hort.

    Directory of Open Access Journals (Sweden)

    R.P. de Oliveira

    1995-04-01

    Full Text Available A hibridação somática via fusão de protoplastos vem sendo utilizada no melhoramento de porta-enxertos de citros em diversos países. Nos Estados Unidos, vários estudos demonstram a eficiência de procedimentos no isolamento e cultivo de protoplastos dessa frutífera. O presente trabalho foi realizado com o objetivo de avaliar o efeito do meio de cultivo de calos embriogênicos do porta-enxerto tangerina Cleópatra (Citrus reshni Hort. sobre o isolamento de protoplastos, bem como sugerir alterações de procedimento. Os resultados mostram a possibilidade do isolamento de 1.4 x 10(6 a 4.7 x 10(6 protoplastos por grama de calos da espécie estudada. Verificou-se que, o subcultivo dos calos de tangerina Cleópatra em meio de cultura, sem reguladores 1 hora, sob condições de escuro a 120 rpm, proporcionou maior eficiência de isolamento de protoplastos (4.7 x 10(6 protoplastos/g de calo.Somatic hybridization has been used for citrus rootstock breeding in many countries. In USA, many reports had proved the efficiency of procedures for the isolation and culture of citrus protoplasts. This research was conducted to evaluate the efficiency of procedures of protoplast isolation using embryogenic callus of the Cleópatra mandarin rootstock. Alterations were proposed to increase protoplast isolation and culture method. Results show the possibility of a protoplast yield of 1.4 to 4.7 x 10(6 pps/g.f.w. for Cleópatra tangerine rootstock callus. Protoplast yield can be raised to 4.7 x 10(6 pps/g.f.w. if the embryogenic callus are grown in a medium supplemented only with 4% sucrose and pre-treated with 1% w/v macerozyme for 1 hour, at 120 rpm, in dark, is applied before protoplast isolation.

  19. Life history of lake herring of Green Bay, Lake Michigan

    Science.gov (United States)

    Smith, Stanford H.

    1956-01-01

    Although the lake herring has been an important contributor to the commercial fish production of Green Bay, little has been known about it. This study is based on field observations and data from about 6,500 lake herring collected over the period 1948 to 1952. Relatively nonselective commercial pound nets were a primary source of material for the study of age and growth. Commercial and experimental gill nets were used to obtain data on gear selectivity and vertical distribution. Scales were employed to investigate age and growth. Age group IV normally dominated commercial catches during the first half of the calendar year and age group III the last half. At these ages the fish averaged about 10.5 inches in length. The season's growth started in May, was most rapid in July, and terminated near the end of October. The sexes grew at the same rate. Selectivity of fishing gear was found to influence the estimation of growth. Geographical and annual differences in growth are shown. Factors that might contribute to discrepancies in calculated growth are evaluated. Possible real and apparent causes of growth compensation are given. The relation between length and weight is shown to vary with sex, season, year, and method of capture. Females were relatively more plentiful in commercial catches in February than in May through December. The percentage of females decreased with increase in age in pound-net catches but increased with age in gill-net samples. Within a year class the percentage of females decreased with increase in age. Most Green Bay lake herring mature during their second or third year of life. They are pelagic spawners with most intensive spawning over shallow areas. Spawning takes place between mid-November and mid-December, and eggs hatch in April and May. Lake herring ovaries contained from 3,500 to 11,200 eggs (averaged 6,375). Progress of spawning by age, sex, and length is given. Lake herring were distributed at all depths in Green Bay in early May, were

  20. 40 CFR 35.1605-3 - Publicly owned freshwater lake.

    Science.gov (United States)

    2010-07-01

    ... 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 access to the lake through publicly owned contiguous land so that any person has the same opportunity...

  1. L'Interaction épistolaire au XVIIIe siècle. Etude réalisée à partir de trois dialogues épistolaires : Etude réalisée à partir de trois dialogues épistolaires : Voltaire & Mme du Deffand, Jean-Jacques Rousseau & Malesherbes, Benjamin Constant & Isabelle de Charrière. Théorie et pratique de l'épistolaire au XVIIIe siècle

    OpenAIRE

    Khouzeimi, Sami

    2013-01-01

    Notre travail décrit le processus de l’interaction épistolaire au XVIIIe siècle à travers l’étude des trois exemples de dialogues épistolaires, à savoir : Voltaire & Mme du Deffand, Rousseau & Malesherbes et enfin Benjamin Constant &Isabelle de Charrière. Nous comprenons par l’interaction épistolaire, le va-et-vient entre les deux correspondants, leur influence mutuelle, leurs échanges de rôles. La question principale qui se pose ici est la suivante : quel est l’intérêt, pour les deux corresp...

  2. Cultural Eutrophication of Lonar Lake, Maharashtra, India

    Directory of Open Access Journals (Sweden)

    Vyankatesh B. Yannawar

    2013-06-01

    Full Text Available Lonar is one of the youngest Lake and is unique in the world for its alkalinity and salinity of the water. But its alkalinity, pH and salinity go on decrease day by day. An attempt has been made to examine environmental analysis of Lonar Lake. Objective: This papers aims at improving the water quality in the lakes from hyper-eutrophic to minor eutrophic conditions. Methods: The physical and chemical parameters were analyzed as per APHA. Results: It is found that major Spirulina species of algae was found in lake water. This species Spirulina having medicinal value for human body. This species occupied the Lonar lake water phytoplankton about 90.0% and above. Rests of 10 % are other members of Chlorophyceae, Cynophyceae and Bacillariophyceae also found in this lake. Lonar lake water was found to be very rich in mineral nutrient contents. No fish species was recorded in the same water body. Conclusions: Hence this World heritage lake should be preserved for its alkalinity and salinity. Use of agrochemicals on crater floor; nuisance of tourists; sewage disposal in the lake; constructions on the crater rim; etc. are some of the problems requiring attention. The lake urgently needs to take immediate protection from pollution and save and preserve for future generations.

  3. Lake ice cover and its influence on lake ecology in a Finnish lake district

    Science.gov (United States)

    Leppäranta, Matti; Arvola, Lauri

    2014-05-01

    A wintertime research program on the physics and biology of lakes in Häme lake district in Finland has been performed in the last five years. The set of study lakes contains a wide spectrum in size, depth and trophic status. In this region the lakes freeze over annually for 4-6 months and the mean ice thickness is around 0.5 m. The ice sheet consists of congelation ice and snow-ice. The snow-ice fraction ranges from 0 to 90 per cent depending on the snow fall history and its magnitude makes a major contribution to the ice properties and conditions in the water body beneath the ice, in particular the mechanical strength and optical thickness are much less than for congelation ice. The e-folding depth of light intensity was 50-100 cm for congelation ice and 5-10 cm for snow. A numerical model has been developed to simulate the annual cycle of ice stratigraphy, temperature and thickness. The water bodies had a 1-4 m thick upper mixed layer thick thermocline, and in deeper lakes a lower homogeneous layer. Fall cooling process was crucial to determine the temperature of the lower layer at freeze-up, anything within 0-4°C. Oxygen concentration decreased in winter, especially close to the bottom sediments, and carbon dioxide concentration increased due to respiration activity. Phytoplankton production and biomass level were low or very low and, therefore, heterotrophic and mixotrophic species were abundant. Oxygen depletion in the hypolimnium had several chemical and ecological consequences, such as release of phosphorus from the bottom sediments. In spring, just before the ice-out, photosynthesis was at a high level beneath the ice due to improved light conditions and started to elevate the oxygen concentration in the topmost water layer. Primary production under the ice is limited or prohibited by low level of available light.

  4. Fat content of the flesh of siscowets and lake trout from Lake Superior

    Science.gov (United States)

    Eschmeyer, Paul H.; Phillips, Arthur M., Jr.

    1965-01-01

    Samples of flesh were excised from the middorsal region of 67 siscowets (Salvelinus namaycush siscowet) and 46 lake trout (Salvelinus n. namaycush) collected from Lake Superior. Chemical analysis of the samples revealed a range in fat content (dry weight) of 32.5 to 88.8 per cent in siscowets and 6.6 to 52.3 per cent in lake trout. Percentage fat increased progressively with increase in length of fish in both forms, but the average rate of increase was far greater for siscowets than for lake trout at lengths between 12 and 20 inches. Despite substantial individual variation, the percentage fat in the two forms was widely different and without overlap at all comparable lengths. The range in iodine number of the fat was 100 to 160 for siscowets and 103 to 161 for lake trout; average values were generally lower for siscowets than for lake trout among fish of comparable length. Percentage fat and relative weight were not correlated significantly in either subspecies. The fat content of flesh samples from a distinctive subpopulation of Lake Superior lake trout known as 'humpers' was more closely similar to that of typical lean lake trout than to siscowets, but the rate of increase in fat with increasing length was greater than for lean lake trout. Flesh samples from hatchery-reared stocks of lake trout, hybrid lake trout X siscowets, and siscowets tended to support the view that the wide difference in fat content between siscowets and lake trout is genetically determined.

  5. MORPHOMETRY OF LAKE SFANTA ANA, ROMANIA (LAKE SAINT ANN)

    OpenAIRE

    Gavril PANDI

    2008-01-01

    Lake Sfanta Ana is one of the most emblematic lacustrine complexes of our country. In this context, its monitoring is not only necessary but also compulsory. The study of its evolution and the forecasts are done easier because we have had hydrotopometric highs for about 100 years, even if the frequency of evaluations has not been periodical. The morphometric elements have had a normal evolution, of continuous diminution, specific to lacustrine complexes. The modification rates of the morphome...

  6. Normes religieuses et identité civique dans les cités de Grèce égéenne (IIe siècle av. J.-C.-IIIe siècle ap. J.-C.

    Directory of Open Access Journals (Sweden)

    Yves Lafond

    2010-04-01

    Full Text Available Un règlement athénien, daté du IIe siècle de notre ère, nous plonge dans une séance de l’assemblée des Iobacches convoquée pour ratifier les statuts (δόγματα présentés à l’occasion d’un renouvellement du prêtre et du vice-prêtre de l’association. La lecture des statuts soulève les acclamations : « Observons-les (ces statuts pour toujours », τούτοις ἀεὶ χρώμεθα,« Restitue les statuts », ἀνάκτησαι τ’ ὰ δόγματα, « Qu’on mette les statuts sur une stèle », ἐν στήλῃ τὰ δόγματα. Il est alors procé...

  7. Geological nature of subglacial Lake Vostok

    Science.gov (United States)

    Leitchenkov, G. L.; Masolov, V. N.; Lukin, V. V.; Bulat, S. A.; Kurinin, R. G.; Lipenkov, V. Ya.

    2003-04-01

    Lake Vostok is located at the edge of vast upland of East Antarctic (Precambrian) Crystalline Shield and represents a typical extensionally-induced intracontinental rift zone. Type indicators of rift nature are: width (60-80 km) and length (about 300 km) of the lake depression; several (3-5) kilometers of sediments (modeled from gravity data) infilling the lake graben, considerable amplitudes of faults bounding the lake (up to 2 km in bedrock relief and in excess of 5 km in basement topography), half-graben-like structures (rotated crustal blocks) at flanks of the lake traceable to crustal extension; along-strike segmentation of the depression (the presence of two isolated basins, recognized from seismic and gravity data); knee-shaped spatial configuration of the lake and existence of diagonal fractures (displayed in bedrock topography) normally nascent in conditions of tensional stress. The rift graben of Lake Vostok is considered to be a part (branch) of more spacious rift system, main arm of which stretched from the Prydz Bay trough the Lambert Glacier and the eastern foot of Gamburtsev Mts. to, at least, 110E. This rift system is a result of large-scale extensional event, which occurred in East Antarctica in Late Jurassic - Early Cretaceous prior to East Gondwana break-up. Sedimentary infill of this age is proposed to dominate in Vostok Lake, although postrift, preglacial (Cretaceous - Paleogene) strata can also forms significant part of depositional section. Helium isotopes data give evidence that the Lake Vostok rift is not active. On the other hand, thermophilic bacteria found in accretion ice suggest the possibility of hydrothermal activity in lake bottom. The conduits for warm underwater can be provided by deep crustal faults bordering rift graben. Microseismicity recorded in the area of Lake Vostok suggests the possibility of crustal deformations (likely during more dramatic earthquakes) providing a necessary fault permeability for water seepage from

  8. Expanding Models of Lake Trophic State to Predict Cyanobacteria in Lakes: A Data Mining Approach

    Science.gov (United States)

    Background/Question/Methods: Cyanobacteria are a primary taxonomic group associated with harmful algal blooms in lakes. Understanding the drivers of cyanobacteria presence has important implications for lake management and for the protection of human and ecosystem health. Chloro...

  9. Great Lakes Restoration Initiative Great Lakes Mussel Watch(2009-2014)

    Data.gov (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...

  10. Lake Morphometry for NHD Lakes in Lower Colorado Region 15 HUC

    Data.gov (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...

  11. Lake Morphometry for NHD Lakes in North East Region 1 HUC

    Data.gov (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. Lake Morphometry for NHD Lakes in Arkansas White Red Region 11 HUC

    Data.gov (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...

  13. Lake Morphometry for NHD Lakes in Great Basin Region 16 HUC

    Data.gov (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...

  14. Lake Morphometry for NHD Lakes in Souris Red Rainy Region 9 HUC

    Data.gov (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...

  15. Lake Morphometry for NHD Lakes in Texas-Gulf Region 12 HUC

    Data.gov (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...

  16. Lake Morphometry for NHD Lakes in Mid-Atlantic Region 2 HUC

    Data.gov (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...

  17. Lake Morphometry for NHD Lakes in Pacific Northwest Region 17 HUC

    Data.gov (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. Lake Morphometry for NHD Lakes in Upper Colorado Region 14 HUC

    Data.gov (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 the Upper Portion of the Missouri Region 10 HUC

    Data.gov (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 Rio Grande Region 13 HUC

    Data.gov (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 Lower Mississippi Region 8 HUC

    Data.gov (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 the Lower Portion of the Missouri Region 10 HUC

    Data.gov (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. Ardoch Lake, Kellys Slough, Devils Lake National Wildlife Range : Narrative Report : Calendar Year 1965

    Data.gov (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 1965 calendar year. The...

  4. Lake Morphometry for NHD Lakes in Upper Mississippi Region 7 HUC

    Data.gov (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

    Data.gov (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. Radiocarbon concentration of lake sediment cellulose from Lake Erhai in southwest China

    International Nuclear Information System (INIS)

    To improve age models for lake sediment cores without suitable 14C dating materials such as terrestrial plant fossils, we investigated the radiocarbon dating of lake sediment cellulose. The cellulose fraction in the sediments was obtained by a sequential decomposition of other organic matter, and subsequently dated by AMS. In general, 14C ages of the lake sediment cellulose obtained from a 10-m sediment core from Lake Erhai on the Yunnan-Guizhou Plateau are in agreement with 14C dates from terrestrial plant fossils. For the early Holocene, however, differences of up to 1000 14C years are observed between lake sediment cellulose and terrestrial plant fossils. This disagreement is probably caused by the contribution of 14C-depleted cellulose synthesized by aquatic plants/algae in the lake. To obtain a precise and accurate chronology based on 14C ages of lake sediment cellulose, the origin of lake sediment cellulose needs to be established

  7. Long Lake National Wildlife Refuge, Long Lake Wetland Management District: Annual narrative report: Calendar year 1985

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for Long Lake NWR, Long Lake WMD, and the easement refuges outlines Refuge accomplishments during the 1985 calendar year. The report...

  8. Hydrology of Malheur Lake, Hydrology of Malheur Lake, Harney County, southeastern Oregon

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The various components of inflow and outflow to and from the lake and their relative magnitudes were identified. In 1972 water year the total inflow to the lake was...

  9. Zooplankton communities in a large prealpine lake, Lake Constance: comparison between the Upper and the Lower Lake

    OpenAIRE

    Gerhard MAIER; Pfeiffer, Martin; Hans Bernd STICH

    2005-01-01

    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 ...

  10. Lake trout spawning habitat in the Six Fathom Bank-Yankee Reef lake trout sanctuary, Lake Huron

    Science.gov (United States)

    Edsall, Thomas A.; Brown, Charles L.; Kennedy, Gregory W.; Poe, Thomas P.

    1992-01-01

    Attempts to reestablish self-sustaining stocks of lake trout (Salvelinus namaycush) in the lower four Great Lakes, where the species was extinguished in the 1950s and 1960s, have been largely unsuccessful. To avoid many of the problems believed to be contributing to this failure, the fishery management community recently established several sanctuaries in the offshore waters of the Great Lakes where the development and protection of self-sustaining stocks of lake trout would be a primary management objective. One of these, the Six Fathom Bank-Yankee Reef sanctuary, was created in the south-central portion of Lake Huron. This sanctuary covers 168,000 ha and includes the shallower portions of the Six Fathom and Ipperwash scarps, which are major bathymetric features in the southern half of the lake. Historical accounts describe Six Fathom Bank as the most important lake trout spawning ground in the lake. Here we present the results of lake bed surveys conducted in the sanctuary with side-scan sonar, underwater videocamera systems, and a small research submarine. Our observations of the lake bed are consistent with what is known of the bedrock stratigraphy, glacial history, and karst geomorphology of the Lake Huron basin. Most of the loose rock we found seemed to be derived from local carbonate bedrock formations, although non-carbonate rock probably from Precambrian sources to the north was also present in some areas. Much of the bedrock and loose rock displayed karst solution features described for the Bruce Peninsula on the Ontario shoreline. Our surveys revealed substantial areas of lake bed at water depths of 20–36 m that resembled suitable spawning and fry production habitat for the shallow-water strains of lake trout that are the focus of the rehabilitation effort. Low mid-lake nutrient levels documented recently by others and the extremely high abundance of Mysis relicta (an important item in the diet of young lake trout) that we documented on Yankee Reef

  11. Bottom sediments of Ypacarai Lake

    International Nuclear Information System (INIS)

    Bottom sediments of Ypacarai Lake was investigated with XRF and Mossbauer techniques. The lake of about 120 Km2, is a shallow one, medium deep of about 1.8m. In addition to its use for recreation, its basin has a wide area of influence and of economical significance. Bottom sediments play an important role in the overall distribution of trace elements in the aquatic system and act as a sink for metals. Bottom samples were taken from 5 different sampling stations, selected according to the morphology and population sites in the shore. The concentration of toxic metals was found to be low and no negative ecological impact should be expected. The main metallic ion component is iron (1.69%). Mossbauer studies showed this element appears as Fe+3 and no Fe+2 was detected. It is here suggested that Fe+3 acts as the limiting element which controls eutrophication process

  12. Monitoring and Modelling Lakes and Coastal Environments

    Science.gov (United States)

    Odada, Eric

    2009-01-01

    The monitoring and modeling of lakes and coastal environments is becoming ever more important, particularly because these environments bear heavy loads in terms of human population, and their resources are critical to the livelihoods and well-being of coastal inhabitants and ecosystems. Monitoring and Modelling Lakes and Coastal Environments is a collection of 18 papers arising from the Lake 2004 International Conference on Conservation, Restoration and Management of Lakes and Coastal Wetlands, held in Bhubaneswar, Orissa, India, 9-13 December 2004. Consequently, 15 of the papers are concerned with studies on the Indian subcontinent, and many of the papers focus on India's Lake Chilika, the site of a special session during the conference. Two papers concern Japan, and one focuses on North America's Great Lakes region. Although the book has a regional bias, the replication of best practices that can be drawn from these studies may be useful for an international audience.

  13. A blood chemistry profile for lake trout

    Science.gov (United States)

    Edsall, Carol Cotant

    1999-01-01

    A blood chemistry profile for lake trout Salvelinus namaycush was developed by establishing baseline ranges for several clinical chemistry tests (glucose, total protein, amylase, alkaline phosphatase, alanine aminotransferase, aspartate aminotransferase, creatine kinase, calcium, and magnesium). Measurements were made accurately and rapidly with a Kodak Ektachem DT60 Analyzer and the Ektachem DTSC Module. Blood serum was collected from both laboratory-reared lake trout (1978 and 1986 year-classes) and feral spawning trout from Lake Michigan and then analyzed in the laboratory. No clinically significant differences were found between samples analyzed fresh and those frozen for 1 or 6 weeks. The ranges in chemistry variables for feral lake trout were generally wider than those for laboratory-reared lake trout, and significant differences existed between male and female feral lake trout for several tests. Blood chemistry profiles also varied seasonally on fish sampled repeatedly.

  14. Diversité des théories libérales en Grèce au XIXe siècle

    Directory of Open Access Journals (Sweden)

    Roxane D. Argyropoulos

    2005-01-01

    Full Text Available Étudier l'émergence du mouvement libéral en Grèce au XIXe siècle implique une série de difficultés d'interprétation. C'est appréhender un univers qui a été légué par la Révolution française et nous conduit à l'acquisition de principes indispensables au fonctionnement d'une société démocratique moderne. Υ travers des types de discours différents, nous essayons de suivre les traces de cette mise en œuvre du principe de la liberté de 1830 jusqu'à la veille du premier conflit mondial. On assiste après 1830, à une période de transition mais également de mise en œuvre des idées novatrices des Lumières. Les libéraux grecs ont pris fait et cause pour des combats concernant le respect de la vie humaine, la réciprocité des droits et des devoirs et sont dominés par la préoccupation de la liberté d'expression et de création, l'abolition de la peine de mort, l'idéal républicain, l'instruction publique, le défi du progrès. Depuis les années 1830 jusqu'en 1870, se réclamer du libéralisme, c'est s'inscrire dans les forces progressistes. Mais, la dernière phase de son édification fut liée à la montée du socialisme et du marxisme, qu'il allait remettre en question, et dans les années qui ont suivi la défaite de 1897, le libéralisme est confronté à des théories comme la pensée polyvalente de Nietzsche. Dans les différentes phases de l'évolution de la pensée libérale en Grèce, on observe des variations qui pour la plupart sont des étapes du processus vers la démocratie. 

  15. Entre ville et campagne, la villégiature à Angers (Maine-et-Loire au XIXe siècle

    Directory of Open Access Journals (Sweden)

    Dominique Letellier-d'Espinose

    2009-11-01

    Full Text Available Quelles formes prend au XIXe siècle la villégiature dans les proches abords d’une ville de taille moyenne comme Angers ? Le sujet est particulièrement riche durant cette période de forte urbanisation où s’interpénètrent une campagne de proximité avec son héritage patrimonial et les quartiers suburbains, nouveaux espaces « résidentiels ». La frontière mouvante entre espace rural et urbain, comme la notion floue et évolutive de temporalité qui met à mal la distinction entre résidences permanentes et temporaires, rejoint les désirs de nature du citadin ou de confort moderne du châtelain bien analysés par le théoricien Daly. Ce phénomène sociétal se traduit par des expressions architecturales souvent ambivalentes, que différencie surtout la relation au lieu. Du front urbain au chemin rural, du jardin paysager miniature au parc domanial, le paramètre contextuel est évidemment déterminant dans l’appréhension d’une villégiature de bord de ville.What are the forms of countryside retreat during the nineteenth century in the immediate vicinity of a medium-sized town such as Angers? The subject is a remarkably stimulating one during this period which saw the expansion of the town into the surrounding countryside where an existing heritage of country houses was now joined by new ‘residential’ spaces of suburban neighbourhoods. The fluctuating frontier between urban and rural space, along with evolving notions of the occupation of time, making the distinction between a permanent and a holiday residence uncertain, find an echo in the theories of Daly about the town-based desires for modern comfort shared by the class of country house owners. The societal phenomenon finds expression in architectural terms which is often ambivalent, producing differences in relation to specific places. From the urban street front to the rural lane, from the miniature landscaped garden to the estate park, contextual parameters are

  16. La peinture religieuse monumentale, une expression artistique emblématique du nord de la France au XIXe siècle ?

    Directory of Open Access Journals (Sweden)

    Catherine Guillot

    2012-04-01

    Full Text Available Issue d’une première tentative de synthèse portant sur la peinture monumentale religieuse à Lille dans la seconde moitié du XIXe siècle, cette étude permet d’exhumer l’œuvre d’artistes régionaux, mais également belges et néerlandais, mettant en évidence le rôle de carrefour de l’actuelle métropole lilloise. Dans une région fortement marquée par le catholicisme, les sujets traités sont à la fois le reflet des dévotions nationales et de cultes plus locaux, que ce soit à travers la figure de saint Vincent de Paul, le rôle de la Vierge ou la dévotion aux âmes du purgatoire qui prend une importance particulière à partir du foyer de Loos. Cette expression artistique et religieuse se développe sous la forme de grands cycles dont la réalisation connaît son apogée sous la IIIe République, en particulier de 1880 à 1900. Une fois ce panorama dressé, il devient possible d’interroger les catégories traditionnelles de l’art à cette époque, la notion centrale de primitivisme et les jugements de valeur auxquels cette peinture est encore souvent soumise.This article is based on a synthetic analysis of monumental religious painting at Lille during the second half of the 19th century. This study led to the rediscovery of many regional artists, but also Belgian and Dutch artists, underlining the long history of Lille’s present-day position as an international crossroads. In a region which was strongly marked by Catholicism, the subjects dealt with offer a reflection of national devotional practices but also draw attention to more local cults. Examples here include the figure of Saint Vincent de Paul, the role of the Virgin Mary and the devotion to souls in purgatory, which is particularly important in Loos. This artistic and religious expression develops according to major cycles which reached a high point during the Third Republic, and particularly from 1880 to 1890. Once this general overview has been established

  17. L’enfant pauvre et la naissance de la photographie sociale aux États-Unis au XIXe siècle

    Directory of Open Access Journals (Sweden)

    Anne LESME

    2010-03-01

    Full Text Available À la fin du XIXe siècle, le journaliste et photographe Jacob Riis révèle les conditions de vie déplorables des familles d’immigrants à New York. C’est le début de la photographie sociale aux États-Unis où la représentation de l’enfant pauvre tiendra une place majeure. Ses photographies, projetées au cours de conférences faites par l’auteur et reproduites dans des publications, contribueront à un changement de mentalité. Si le regard de ce photographe reste celui d’un membre de la classe moyenne sur les enfants du Lower East Side, ses images apportent une nouvelle vision de la pauvreté, en phase avec un enfant désormais perçu comme innocent par la société. Par ailleurs, cet usage particulier du rôle probant de la photographie en soutien du texte inaugure un nouveau mode de communication dont les réformateurs useront afin d’émouvoir et de faire réagir le public des classes moyennes et aisées.At the end of the 19th century, Jacob Riis, journalist and photographer, brought to light the appalling conditions of the slums in New York; it was the beginning of the social documentary photography in the United States. The representation of destitute children was to become central in this genre. His photographs, used during stereopticon slides projections and published in books and articles, contributed to a change of mentality. However influenced by a middle-class vision of the Lower East Side’s children, Jacob Riis’s photographs contributed to bring a new perception of poverty in line with a child who was from that time perceived as innocent by a large part of society. This particular use of photography as a convincing and reliable medium added to the text initiated a new means of communication used by the reformers to move and provoke reactions from a middle and upper-class public.

  18. Contenir pour mieux s’élever. Libéraux et groupes subalternes à Cuba à la fin du XIXe siècle

    Directory of Open Access Journals (Sweden)

    Delphine Sappez

    2015-06-01

    grupos subalternos para crear sus propias expresiones políticas, los autonomistas se convirtieron en un elemento más de coacción sobre aquellos, impidiendo que confluyeran con ellos en la construcción de una sociedad posesclavista y eventualmente poscolonial en Cuba. Palabras clave: Cuba; siglo XIX; autonomismo; clases subalternas; control social; masonería ***** Cómo citar este artículo: SAPPEZ, Delphine (2015. "Contenir pour mieux s’élever. Libéraux et groupes subalternes à Cuba à la fin du XIXe siècle". Dirāsāt Hispānicas. Revista Tunecina de Estudios Hispánicos, 2: 65-83.

  19. Molecular analyses of ostracod flocks from Lake Baikal and Lake Tanganyika

    OpenAIRE

    SCHON, Isa; Martens, Koen

    2012-01-01

    Ancient lakes are excellent laboratories for evolutionary research, where species can be studied in the cradle where they originated. In this article, we investigate two endemic ostracod species flocks from the two oldest lakes in the world, Lake Baikal (LB) (ca. 28 myr) and Lake Tanganyika (LT) (ca. 12 myr), with DNA sequence data. Nuclear ITS1 failed to resolve the phylogeny of both flocks. Whilst most phylogenetic relationships of the Tanganyika flock are resolved with mitochondrial COI, t...

  20. Environmental control of methanotrophsin lakes

    OpenAIRE

    Suarez Rodriguez, Marco

    2011-01-01

    Aerobic methanotrophs (MOB) are a functional group of proteobacteria that use methane as their only energy and carbon source. Phylogenetically, such methanotrophs are affiliated with present alpha and gamma proteobacteria. Methanotrophic microorganisms play an essential role in the methane cycle, since they to a great extent reduce potential methane emissions to the atmosphere. In stratified lakes the aerobic methanotrophs are commonly present at the oxic-anoxic interfaces. This study aims to...

  1. Lake Nasser evaporation reduction study

    Directory of Open Access Journals (Sweden)

    Hala M.I. Ebaid

    2010-10-01

    Full Text Available This study aims to evaluate the reduction of evaporation of Lake Nasser’s water caused by disconnecting (fully or partially some of its secondary channels (khors. This evaluation integrates remote sensing, Geographic Information System (GIS techniques, aerodynamic principles, and Landsat7 ETM+ images. Three main procedures were carried out in this study; the first derived the surface temperature from Landsat thermal band; the second derived evaporation depth and approximate evaporation volume for the entire lake, and quantified evaporation loss to the secondary channels’ level over one month (March by applied aerodynamic principles on surface temperature of the raster data; the third procedure applied GIS suitability analysis to determine which of these secondary channels (khors should be disconnected. The results showed evaporation depth ranging from 2.73 mm/day at the middle of the lake to 9.58 mm/day at the edge. The evaporated water-loss value throughout the entire lake was about 0.86 billion m3/month (March. The analysis suggests that it is possible to save an approximate total evaporation volume loss of 19.7 million m3/month (March, and thus 2.4 billion m3/year, by disconnecting two khors with approximate construction heights of 8 m and 15 m. In conclusion, remote sensing and GIS are useful for applications in remote locations where field-based information is not readily available and thus recommended for decision makers remotely planning in water conservation and management.

  2. Carbon cycling in Lake Superior

    Science.gov (United States)

    Urban, N. R.; Auer, M. T.; Green, S. A.; Lu, X.; Apul, D. S.; Powell, K. D.; Bub, L.

    2005-06-01

    Carbon (C) cycling in Lake Superior was studied within the Keweenaw Interdisciplinary Transport Experiment in Superior (KITES) project to assess (1) whether the lake is net heterotrophic, (2) sources, sinks and residence time for dissolved organic carbon (DOC), (3) importance of terrigenous organic C subsidies, and (4) factors limiting C flow through bacteria. During 3 years of fieldwork, measurements were made of spatial and temporal distributions of C pools and rates of photosynthesis, community respiration, and bacterial production. Measurements were made of the composition of dissolved organic matter (DOM), rates of DOM photolysis, lability of DOM toward microbial consumption, and river inputs of DOM. All measurements suggest the lake is net heterotrophic. The C:N ratios of DOM suggest that it is primarily of terrigenous origin, but other characteristics (size distribution, UV absorption) point to the presence of autochthonous DOM and to alteration of terrigenous material. The lake mass balance indicates that the residence time (˜8 years) of the DOC pool (17 Tg) is short relative to the hydrologic residence time (170 years). The known flux of terrigenous DOC (˜1 Tg/yr) is too low to support annual bacterial carbon demand (6-38 Tg/yr), but microbial respiration is the major sink for terrigenous DOC. A rapidly cycling, autochthonous DOC pool must exist. Microbial activity was correlated with temperature, phosphorus availability, and DOC concentration but not with photosynthesis rates. Measurements of respiration (˜40 Tg/yr), photosynthesis (2-7 Tg/yr), and bacterial production (0.5-2 Tg/yr) are not all mutually compatible and result in a discrepancy in the organic carbon budget.

  3. Microbial Ecology of Lake Kivu

    OpenAIRE

    Llirós, Marc; Descy, Jean-Pierre; Libert, Xavier; Morana, Cédric; Schmitz, Mélodie; Wimba, Louisette; Nzavuga-Izere, Angélique; García-Armisen, Tamara; Borrego, Carles; Servais, Pierre; Darchambeau, François

    2012-01-01

    We review available data on archaea, bacteria and small eukaryotes in an attempt to provide a general picture of microbial diversity, abundances and microbe-driven processes in Lake Kivu surface and intermediate waters (ca. 0–100 m). The various water layers present contrasting physical and chemical properties and harbour very different microbial communities supported by the vertical redox structure. For instance, we found a clear vertical segregation of archaeal and bacterial assemblages bet...

  4. Fisheries Management Plan: Rice Lake National Wildlife Refuge

    Data.gov (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...

  5. 76 FR 24505 - Great Lakes Pilotage Advisory Committee

    Science.gov (United States)

    2011-05-02

    ... SECURITY Coast Guard Great Lakes Pilotage Advisory Committee AGENCY: Coast Guard, DHS. ACTION: Committee Management; Notice of Federal Advisory Committee Meeting. SUMMARY: The Great Lakes Pilotage Advisory... Great Lakes pilot registration, operating requirements, training policies, and pilotage rates and...

  6. Refuge Land Acquisition Biological Reconnaissance Report Lake Umbagog 1972

    Data.gov (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...

  7. Recreational Fishery Management Plan for Lake Andes National Wildlife Refuge

    Data.gov (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...

  8. Potential flood volume of Himalayan glacial lakes

    Directory of Open Access Journals (Sweden)

    K. Fujita

    2013-07-01

    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.

  9. Estimated Optical Constants of Tagish Lake Meteorite

    Science.gov (United States)

    Roush, Ted L.; Fonda, Mark (Technical Monitor)

    2002-01-01

    The visible, near-infrared, and mid-infrared (0.3-25 micron) real and imaginary indices of refraction are derived from reflectance measurements of the Tagish Lake meteorite. These are compared to some real and imaginary indices of refraction of the individual minerals composing the Tagish Lake meteorite. From this comparison it is clear that the imaginary indices of several individual minerals contribute to the estimated imaginary index of the Tagish Lake.

  10. 1997 fisheries statistics, Lake Kariba - Zimbabwe shore

    OpenAIRE

    Songore, N.; Mugwagwa, M.; Moyo, A.

    1998-01-01

    The report provides catch records for the kapenta (Limnothrissa miodon) and inshore fisheries in the Zimbabwean waters of Lake Kariba for the year 1997. Kapenta usually constitute about 94% of the total catch from Lake Kariba; for statistical purposes catches are recorded for the 5 hydrological basins - Mlibizi, Binga, Sengwa, Bumi and Kariba. The kapenta, which occupy the open pelagic waters of the lake, represent a unit stock which is harvested by both Zimbabwe and Zambia; the artisanal fis...

  11. Seismicity of southern Lake Tanganyika

    Science.gov (United States)

    Lavayssiere, A.; Gallacher, R. J.; Keir, D.; Ebinger, C. J.; Drooff, C.; Khalfan, M.; Bull, J. M.

    2015-12-01

    Global seismic networks document frequent and unusually deep earthquakes in East African rift sectors lacking central volcanoes. The deep seismicity means that we can use earthquakes to probe the geometry and kinematics of fault systems throughout the crust, and to understand the distribution of strain between large offset border fault systems and intrabasinal faults. The southern Tanganyika rift zone has the highest seismicity rate within East Africa during the period 1973-present, yet earlier temporary seismometer networks have been too sparse in space and time to relocate earthquakes with location and depth errors of Lake Tanganyika since June 2014 using a network at 12 broadband seismic stations. The distribution of earthquakes shows that deformation primarily occurs on large offset border faults beneath the lake. Subsidiary earthquake activity occurs along the subparrallel Rukwa graben, and beneath the NE-SW striking Mweru rift. The distribution of earthquakes suggests the southern end of lake Tanganyika is characterized by a network of intersecting NNW and NE striking faults. The depths of earthquakes are distributed throughout the crust, consistent with the relatively strong lithosphere.

  12. 78 FR 72706 - Notice of Inventory Completion: Michigan State Police, Houghton Lake Post, Houghton Lake, MI

    Science.gov (United States)

    2013-12-03

    ... National Park Service Notice of Inventory Completion: Michigan State Police, Houghton Lake Post, Houghton Lake, MI AGENCY: National Park Service, Interior. ACTION: Notice. SUMMARY: The Michigan State Police, Houghton Lake Post has completed an inventory of human remains, in consultation with the appropriate...

  13. 78 FR 24228 - Lake Andes National Wildlife Refuge Complex, Lake Andes, SD; Final Comprehensive Conservation Plan

    Science.gov (United States)

    2013-04-24

    ... review and comment following the announcement in the Federal Register on October 29, 2012 ] (77 FR 65574... Fish and Wildlife Service Lake Andes National Wildlife Refuge Complex, Lake Andes, SD; Final... conservation plan and finding of no significant impact (FONSI) for the Lake Andes National Wildlife...

  14. 76 FR 13508 - Ninth Coast Guard District Sector Realignment; Northern Lake Michigan and Lake Huron

    Science.gov (United States)

    2011-03-14

    ... Lake Michigan and Lake Huron AGENCY: Coast Guard, DHS. ACTION: Final Rule. SUMMARY: This rule makes... Sector Lake Michigan, Sector Detroit, and Sector Sault Ste. Marie. This action is taken to rebalance... the reassignment of Station Charlevoix and Station Alpena from Group Sault Ste. Marie to Sectors...

  15. Hydrogeologic controls on the groundwater interactions with an acidic lake in karst terrain, Lake Barco, Florida

    Science.gov (United States)

    Lee, T.M.

    1996-01-01

    Transient groundwater interactions and lake stage were simulated for Lake Barco, an acidic seepage lake in the mantled karst of north central Florida. Karst subsidence features affected groundwater flow patterns in the basin and groundwater fluxes to and from the lake. Subsidence features peripheral to the lake intercepted potential groundwater inflow and increased leakage from the shallow perimeter of the lake bed. Simulated groundwater fluxes were checked against net groundwater flow derived from a detailed lake hydrologic budget with short-term lake evaporation computed by the energy budget method. Discrepancies between modeled and budget- derived net groundwater flows indicated that the model underestimated groundwater inflow, possibly contributed to by transient water table mounding near the lake. Recharge from rainfall reduced lake leakage by 10 to 15 times more than it increased groundwater inflow. As a result of the karst setting, the contributing groundwater basin to the lake was 2.4 ha for simulated average rainfall conditions, compared to the topographically derived drainage basin area of 81 ha. Short groundwater inflow path lines and rapid travel times limit the contribution of acid-neutralizing solutes from the basin, making Lake Barco susceptible to increased acidification by acid rain.

  16. 33 CFR 162.138 - Connecting waters from Lake Huron to Lake Erie; speed rules.

    Science.gov (United States)

    2010-07-01

    ... 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 for... speed not greater than— (i) 12 statute miles per hour (10.4 knots) between Fort Gratiot Light and...

  17. Diet of lake trout and burbot in northern Lake Michigan during spring: Evidence of ecological interaction

    Science.gov (United States)

    Jacobs, Gregory R.; Madenjian, Charles P.; Bunnell, David B.; Holuszko, Jeffrey D.

    2010-01-01

    We used analyses of burbot (Lota lota) and lake trout (Salvelinus namaycush) diets taken during spring gill-net surveys in northern Lake Michigan in 2006-2008 to investigate the potential for competition and predator-prey interactions between these two species. We also compared our results to historical data from 1932. During 2006-2008, lake trout diet consisted mainly of alewives (Alosa pseudoharengus) and rainbow smelt (Osmerus mordax), whereas burbot utilized a much wider prey base including round goby (Neogobius melanostomus), rainbow smelt, alewives, and sculpins. Using the Schoener's diet overlap index, we found a higher potential for interspecific competition in 1932 than in 2006-2008, though diet overlap was not significant in either time period. No evidence of cannibalism by lake trout or lake trout predation on burbot was found in either time period. In 2006-2008, however, lake trout composed 5.4% (by weight) of burbot diet. To determine whether this predation could be having an impact on lake trout rehabilitation efforts in northern Lake Michigan, we developed a bioenergetic-based consumption estimate for burbot on Boulder Reef (a representative reef within the Northern Refuge) and found that burbot alone can consume a considerable proportion of the yearling lake trout stocked annually, depending on burbot density. Overall, we conclude that predation, rather than competition, is the more important ecological interaction between burbot and lake trout, and burbot predation may be contributing to the failed lake trout rehabilitation efforts in Lake Michigan.

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

    DEFF Research Database (Denmark)

    Vestergaard, Ole Skafte; Sand-Jensen, Kaj

    2000-01-01

    We examined the relationship between environmental factors and the richness of submerged macrophytes species in 73 Danish lakes, which are mainly small, shallow, and have mesotrophic to hypertrophic conditions. We found that mean species richness per lake was only 4.5 in acid lakes of low...

  19. Lake Michigan lake trout PCB model forecast post audit (oral presentation)

    Science.gov (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...

  20. 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

    Data.gov (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...

  1. 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

    Data.gov (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...

  2. Heavy Metal Contents of Lake Sapanca

    OpenAIRE

    YALÇIN, Nevin; SEVİNÇ, Vahdettin

    2001-01-01

    The heavy metal pollution of Lake Sapanca located in the Marmara region (Turkey), was investigated over time. The lake is the drinking water source of the city of Adapazarı and its environs. The D-80 (TEM) motorway passes about 5 km along the lake's zero point in the Sapanca district. The motorway's wastewater drainages have been connected to the lake without having been subjected to any wastewater treatment. The motorway was opened to service in October 1990. Analyses w...

  3. Streamflow input to Lake Athabasca, Canada

    Directory of Open Access Journals (Sweden)

    K. Rasouli

    2013-05-01

    Full Text Available The Lake Athabasca drainage area in northern Canada encompasses ecologically rich and sensitive ecosystems, vast forests, glacier-clad mountains, and abundant oil reserves in the form of oil sands. The basin includes the Peace–Athabasca Delta, recognized internationally by UNESCO and the Ramsar Convention as a biologically rich inland delta and wetland that are now under increasing pressure from multiple stressors. In this study, streamflow variability and trends for rivers feeding Lake Athabasca are investigated over the last half century. Hydrological regimes and trends are established using a robust regime shift detection method and the Mann–Kendall (MK test, respectively. Results show that the Athabasca River, which is the main contributor to the total lake inflow, experienced marked declines in recent decades impacting lake levels and its ecosystem. From 1960 to 2010 there was a significant reduction in lake inflow and a significant recession in the Lake Athabasca level. Our trend analysis corroborates a previous study using proxy data obtained from nearby sediment cores suggesting that the lake level may drop 2 to 3 m by 2100. The lake recession may threaten the flora and fauna of the Athabasca Lake basin and negatively impact the ecological cycle of an inland freshwater delta and wetland of global importance.

  4. THE LAKES FROM ROŞIA MONTANĂ

    OpenAIRE

    Răzvan-Horaţiu BĂTINAŞ

    2009-01-01

    The mining industry related to the gold-silver ores has created some particular category of lakes, rare at national level. These small lakes have been used for processing the raw material extracted from the open pits or mine galleries. In the past at Roşia Montană were more than 100 lakes with this type of use, but now only few have remained. The paper will analyze the morphometrical and qualitative water features of the lakes and also the will emphasize the touristic potential of these water...

  5. /sup 210/Pb fluxes in acidified lakes

    International Nuclear Information System (INIS)

    The acidification of softwater lakes by atmospheric deposition of strong acids has occurred in several regions of the world; however, the rate of acidification of freshwater systems is generally unknown. The authors have tested the hypothesis that the /sup 210/Pb technique can be used to establish the chronologies of sediments in acidified lakes, with the purpose of establishing the rate of change of the chemical and perhaps biological composition of the water. Sediment cores were collected from four lakes near Sudbury, Ontario, Canada, that either were acidic (pH 4.2 to 4.4) or had been acidic, but were recently neutralized by the addition of calcium carbonate/calcium hydroxide. /sup 210/Pb flux was measured at five sites per lake. The whole lake fluxes in the Sudbury lakes were significantly lower than those of 11 nonacidic lakes -- 250 km to the southeast. Because it is unlikely that lead (Pb) is leached from the sediments, it is hypothesized that acidification results in alteration of the sedimentation mechanism, leading to reduced /sup 210/Pb (and stable Pb) retention in acidic lakes. Therefore, the /sup 210/Pb method is not suitable for establishing sediment chronologies in recently acidified lakes using existing models

  6. Global patterns in lake surface temperature trends

    Science.gov (United States)

    O'Reilly, C.; Sharma, S.; Gray, D.; Hampton, S. E.; Read, J. S.; Rowley, R.; McIntyre, P. B.; Lenters, J. D.; Schneider, P.; Hook, S. J.

    2014-12-01

    Temperature profoundly affects dynamics in the water bodieson which human societies depend worldwide. Even relatively small water temperature changes can alter lake thermal structure with implications for water level, nutrient cycling, ecosystem productivity, and food web dynamics. As air temperature increases with climate change and human land use transforms watersheds, rising water temperatures have been reported for individual lakes or regions, but a global synthesis is lacking; such a synthesis is foundational for understanding the state of freshwater resources. We investigated global patterns in lake surface water temperatures between 1985 and 2009 using in-situ and satellite data from 236 lakes. We demonstrate that lakes are warming significantly around the globe, at an average rate of 0.34 °C per decade. The breadth of lakes in this study allowed examination of the diversity of drivers across global lakes, and highlighted the importance of ice cover in determining the suite of morphological and climate drivers for lake temperature dynamics. These empirical results are consistent with modeled predictions of climate change, taking into account the extent to which water warming can be modulated by local environmental conditions and thus defy simple correlations with air temperature. The water temperature changes we report have fundamental importance for thermal structure and ecosystem functioning in global water resources; recognition of the extent to which lakes are currently in transition should have broad implications for regional and global models as well as for management.

  7. The pollution of East Lake,Wuhan

    Institute of Scientific and Technical Information of China (English)

    Yi xiGu; Mialy Rakotondravah

    2009-01-01

    @@ 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.

  8. Residence time and physical processes in lakes

    Directory of Open Access Journals (Sweden)

    Nicoletta SALA

    2003-09-01

    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

  9. Lake Titicaca: History and current studies

    International Nuclear Information System (INIS)

    This article summarizes results of Titicaca lake water balance studies including the findings of the IAEA Technical Cooperation Project RLA/08/022. Direct precipitation over the lake accounts for about 55% of the water inflow and rivers and streams provide about 45% of the water inflow. Diffuse groundwater leakage into the lake from coastal aquifers is believed to represent a negligible term of water balance. Evaporation from the lake is strong and accounts for more than 95% of the water losses. The isotopic and chemical composition data obtained within the frameworks of the IAEA Technical Cooperation Project RLA/08/022 are discussed

  10. The Diatom Stratigraphy of Rawapening Lake, Implying Eutrophication History

    OpenAIRE

    Tri Retnaningsih Soeprobowati; Suwarno Hadisusanto; Peter Gell; Atun Zawadski

    2012-01-01

    Problem statement: The use of diatoms to reconstruct past ecological conditions in lakes is well established. Diatoms are microscopic algae that forms siliceous frustules which allow them to preserve well in sediments. Rawapening Lake is one of 15 Indonesian lakes identified as 2010-2014 National Priority Lakes. Naturally, Rawapening is a tectono-volcanic lake. In the early 1900s, the sole outlet of the lake, Tuntang River, was impounded for hydroelectricity, irrigation and fisheries. Since t...

  11. Long Lake National Wildlife Refuge and Long Lake Wetland Management District: Annual narrative report: Calendar year 1995

    Data.gov (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...

  12. Long Lake National Wildlife Refuge and Long Lake Wetland Management District: Annual narrative report: Calendar year 2000

    Data.gov (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...

  13. Long Lake National Wildlife Refuge and Long Lake Wetland Management District: Annual narrative report: Calendar year 1994

    Data.gov (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...

  14. Long Lake National Wildlife Refuge and Long Lake Wetland Management District: Annual narrative report: Calendar year 1996

    Data.gov (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...

  15. Long Lake National Wildlife Refuge and Long Lake Wetland Management District: Annual narrative report: Calendar year 1997

    Data.gov (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...

  16. Long Lake National Wildlife Refuge and Long Lake Wetland Management District: Annual narrative report: Calendar year 1993

    Data.gov (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...

  17. Long Lake National Wildlife Refuge and Long Lake Wetland Management District: Annual narrative report: Calendar year 1992

    Data.gov (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...

  18. Holocene Lake Records on Kamchatka

    Science.gov (United States)

    Diekmann, Bernhard; Biskaborn, Boris; Chapligin, Bernhard; Dirksen, Oleg; Dirksen, Veronika; Hoff, Ulrike; Meyer, Hanno; Nazarova, Larisa

    2014-05-01

    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

  19. Environmental isotope signatures of the largest freshwater lake in Kerala

    International Nuclear Information System (INIS)

    Sasthamkotta lake, the largest freshwater lake in Kerala, serves as a source for drinking water for more than half a million people. Environmental 137Cs analysis done on undisturbed sediment core samples reveals that the recent rate of sedimentation is not uniform in the lake. The useful life of lake is estimated as about 800 years. The δD and δ18O values of the lake waters indicate that the lake is well mixed with a slight variation horizontally. The stable isotope studies on well waters from the catchment indicate hydraulic communication with the lake and lake groundwater system is flow-through type. Analytical model also supports this view. (author)

  20. The decreasing level of Toshka Lakes seen from space

    CERN Document Server

    Sparavigna, Amelia Carolina

    2011-01-01

    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.