144 research outputs found
Supplemental Material - Infilled lakes (<i>P</i><i>ampas</i>) of the Cordillera Blanca, Peru: Inventory, sediment storage, and paleo outbursts
No full textSupplemental Material for Infilled lakes (Pampas) of the Cordillera Blanca, Peru: Inventory, sediment storage, and paleo outbursts by Adam Emmer in Progress in Physical Geography</p
Dynamika vývoje a nebezpečnost jezer v pohoří Cordillera Blanca (Peru)
No full textAdam Emmer: Dynamika vývoje a nebezpečnost jezer v pohoří Cordillera Blanca (Peru) Abstrakt: Velehorské prostředí pohoří Cordillera Blanca (Peru) prochází výraznými (geo)environmemtálními změnami, včetně ústupu zalednění a souvisejícího vzniku a vývoje ledovcových jezer. Ta mohou v případě náhlého uvolnění (části) objemu zadržované vody představovat hrozbu pro společnost (povodně typu "glacial lake outburst flood" GLOF). Spolehlivá identifikace nebezpečných jezer je klíčovým předpokladem efektivního managementu této hrozby. Těžiště disertační práce spočívá v tvorbě nové metody hodnocení náchynosti jezer k povodni typu GLOF, která reflektuje regionální specifika GLOF ve studované oblasti (podmínky, příčiny a mechanismy vzniku) a nevhodnost existujících přístupů prokázané v předchozím výzkumu. Nově vytvořená metoda zohledňuje pět možných scénářů vzniku povodně typu GLOF, které jsou hodnoceny samostatně, a to s využitím kombinace rozhodovacích stromů umožňujících integrované hodnocení kvalitativních a kvantitativních charakteristik (celkem do hodnocení vstupuje 17 charakteristik hráze, jezera a jeho okolí). Tím je umožněna identifikace konkrétních příčin a mechanismů GLOF, ke kterým je dané jezero náchylné. Funkčnost metody byla ověřena zhodnocením náchylnosti skupiny 20 jezer, přičemž u 10 z nich byla v...Adam Emmer: Dynamic of evolution and hazardousness of lakes in the Cordillera Blanca (Peru) Abstract: High mountain environment of the Cordillera Blanca (Peru) is undergoing prespicious (goe)environmantal changes such as glacier retreat and associated formation and evolution of lakes. Glacial lakes may represent a threat for the society in case of sudden release of (part of) retained water ("glacial lake outburst flood"; GLOF). Reliable identification of hazardous lakes is a key persumption of effective GLOF risk management. The fundamental part of this thesis lies in creation of new method for assessing susceptibility of lakes to outburst floods, reflecting regional specifics of these events in the study area (preconditions, causes and mechanisms) and unsuitability of existing approaches revealed in previous research. Newly created method take into account five scenarios of GLOFs, which are assessed separately, using the combination of decision trees allowing integration of qualitative and quantitative characteristics (an overall number of 17 characteristics of the dam, lake and lake surrounding enter the assessment procedure). Thus, identification of specific causes and mechanisms is enabled. The method was verified by assessing susceptibility of 20 lakes, of which 10 produced GLOFs in past (pre-flood...Katedra fyzické geografie a geoekologieDepartment of Physical Geography and GeoecologyPřírodovědecká fakultaFaculty of Scienc
Dynamic of evolution and hazardousness of lakes in the Cordillera Blanca (Peru)
No full textAdam Emmer: Dynamic of evolution and hazardousness of lakes in the Cordillera Blanca (Peru) Abstract: High mountain environment of the Cordillera Blanca (Peru) is undergoing prespicious (goe)environmantal changes such as glacier retreat and associated formation and evolution of lakes. Glacial lakes may represent a threat for the society in case of sudden release of (part of) retained water ("glacial lake outburst flood"; GLOF). Reliable identification of hazardous lakes is a key persumption of effective GLOF risk management. The fundamental part of this thesis lies in creation of new method for assessing susceptibility of lakes to outburst floods, reflecting regional specifics of these events in the study area (preconditions, causes and mechanisms) and unsuitability of existing approaches revealed in previous research. Newly created method take into account five scenarios of GLOFs, which are assessed separately, using the combination of decision trees allowing integration of qualitative and quantitative characteristics (an overall number of 17 characteristics of the dam, lake and lake surrounding enter the assessment procedure). Thus, identification of specific causes and mechanisms is enabled. The method was verified by assessing susceptibility of 20 lakes, of which 10 produced GLOFs in past (pre-flood..
Potential hazardousness of selected moraine-dammed lakes in the Cordillera Blanca, Peru
No full textAdam Emmer: Potential hazardousness of selected moraine-dammed lakes in the Cordillera Blanca, Peru ABSTRACT: This work is devided into the two parts. Firs part reviews contemporary methods of assessment of potential hazardousness for moraine-dammed lakes (eight qualitative methods and three quantitative methods). Second part has two main aims: 1) Assessment of potential hazardousness of seven selected moraine-dammed lakes in the Cordillera Blanca, and 2) Analysis of suitability of these methods for use in this region. Required input data for potential hazardousness assessment were gained from analysis of remotely sensed photographs, research papers of INRENA/ANA institute (Huaráz), and from fieldwork realized in 2012. Ten methods of potential hazardousness assessment were applied on seven studied moraine-dammed lakes. There are no significant differences in results obtained in each method. These results showed, that potentially most hazardous lake is that of Arhueycocha, followed by Palcacocha. On the other hand potentially less hazardous lake is that of Rajucolta. Based on analysis of regional specific of causes and mechanisms of glacial lake outburst floods from moraine-dammed lakes in Cordillera Blanca, five groups of characteristics which reflect these regional specifics were merged: A) possibility of..
Emmer (Speltz) for Dairy Cows
No full textThe term speltz is commonly used for both emmer and spelt by farmers and seedsmen in this country. However, according to the Agronomy Department of State College the crop grown in South Dakota and commonly called speltz is in reality emmer. Emmer was probably introduced into this country fourty or fifty years ago by German immigrants from southern Russia who settled in the Dakotas. It is still grown largely in the Northwest. Farmers with whom the author has talked have been enthusiastic in their praises of emmer as a feed for all classes of livestock. It yields about the same as barley according to their observations, and is preferable to barley to handle and feed. The desirability therefore of emmer as a crop to grow for dairy cows depends largely on its feeding value. Accordingly a project was outlined to determine the relative feeding value of emmer, barley and corn. These crops were chosen for comparison as the chemical analysis indicate that emmer has about the same composition as barley and corn and would naturally be used as a substitute for these feeds for the dairy cow
How to prevent crimes using earthquakes
No full textIn this chapter the author describes how techniques coming from earthquakes prediction has been used to produce successful mathematical models useful in preventing crimes
Amylose content and starch properties in emmer and durum wheat lines with different waxy proteins composition
No full textEmmer wheat is a neglected crop that can be used in the breeding of modern durum wheat for quality. One important aspect of this quality is the starch composition, which is related to the waxy proteins. A collection of emmer wheat was analysed previously for waxy protein composition, and two new Wx-B1 alleles were found by sodium dodecyl sulfate-polyacrylamide gel electrophoresis and DNA sequencing analysis. It is necessary to analyse the effect of these alleles in starch properties and compare them to durum wheat ones. RESULTS: In the current study, emmer lines carrying three different Wx-B1 alleles (Wx-B1b, -B1g, -B1c*), including one with the null allele (Wx-B1b), together with durum cultivars Langdon (Wx-B1a) and Mexicali (Wx-B1c'), were analysed for amylose content. Differences were detected between both species, and the line lacking Wx-B1 protein showed a remarkably low amylose content. In addition, data from blue value, swelling power and Rapid Visco Analyzer also suggested that there were differences in starch properties among the different Wx-B1 alleles. CONCLUSION: The present study suggests that the amylose content in emmer (Wx-B1g) and durum (Wx-B1a) standard materials is not the same; therefore some starch properties are different between the two species. The variation found could be used to enlarge the gene pool of durum wheat and design new materials with desirable amylose content. © 2011 Society of Chemical Industry.This research was supported by grant AGL2007-65685-C02-02 from
the Spanish Ministry of Science and Innovation and the European
Regional Development Fund (FEDER) from the European Union.
The first author thanks the Spanish Ministry of Education (FPU
programme) for a predoctoral fellowship and also for a short-stay
fellowship in Japan.Peer reviewe
Chloroplast DNA haplotype variation within two natural populations of wild emmer wheat (Triticum turgidum ssp. dicoccoides) in southern Turkey
No full textWild emmer wheat (Triticum turgidum ssp. dicoccoides) is the progenitor of cultivated emmer wheat (ssp. dicoccum) and durum wheat (ssp. turgidum conv. durum). Because of its full interfertility with domesticated emmer wheat, this wild species can serve as one of the most important genetic resources to improve durum as well as bread wheat. To elucidate the magnitude of genetic variation within a population of wild emmer wheat, variation of chloroplast DNA was investigated using 91 plants, in total, collected from two natural habitats in southern Turkey. Allelic variation at 24 microsatellite loci in the chloroplast genome was investigated using these samples. Allelic variations were observed at 15 microsatellite loci. The number of alleles per locus was the same in the two populations, ranging from 1 to 4 with an average of 2.17. The estimated diversity indices (H) were also very close ranging from 0.00 to 0.70 with an average of 0.28 and 0.29 for the two populations. Based on the observed allelic variation at all chloroplast microsatellite loci, a total of 23 chloroplast haplotypes (plastotypes) were identified. Only two plastotypes were shared in common between the two natural populations, indicating that the two populations are highly differentiated. Furthermore, uneven micro-geographic distribution of plastotypes was found within each population, suggesting limited rate of migration (seeds dispersal rate) in this species. Our study demonstrated the presence of a high level of genetic diversity between and within highly structured populations of wild emmer wheat in southern Turkey. © 2015 The Author(s). Published by Taylor&Francis.Japan Society for the Promotion of Science: 15255012, 25640102This work was supported in part by Japan Society for the Promotion of Science (JSPS) [grant-in-Aid number 15255012], [grant-in-Aid number 25640102]
The Glacial Retreat in the Cordillera Blanca since the Littel Ice Age
No full textMichal Dobíhal Studijní program: Geografie Studijní obor: Fyzická geografie a geoinformatika Bakalářská práce Vedoucí práce, školitel: Doc. RNDr. Vít Vilímek, CSc. The glacial retreat in the Cordillera Blanca since the Little Ice Age ABSTRACT: The term Little Ice Age refers to a cooling period of time, as a result of this cooling mountain glaciers experienced significant advance in many parts of the world. Conventionally, the period between the 16th century and the middle of the 19th century is stated for the Little Ice Age, but its course and time placement differs in individual world regions. Based on research of scientific literature, this thesis aims at describing correct time placement of the Little Ice Age in the southamerican mountain range Cordillera Blanca and the expanse of the glacier retreat since its maximum till the present. Methods of lichenometry used for dating "Little Ice Age" moraines are mentioned as well. In the analytical part, the area of the glaciation of selected glaciers from the Little Ice Age maximum and from the present is compared using polygon measurement and satellite images. The extrapolation of this method is subsequently made on other selected glaciers, whose moraines have not been dated yet. Keywords: Cordillera Blanca, Little Ice Age, glacial retreat, moraine, lichenometr
European Economies in the First Epoch of Imperialism and Mercantilism. 1415-1846.
No full textThe costs and benefits of European Imperialism from the conquest of Ceuta, 1415, to the Treaty of Lusaka, 1974.Twelfth International Economic History Congress. Madrid, 1998.Patrick K. O'Brien and Leandro Prados de la Escosura (eds.)Editada en la Fundación Empresa PúblicaJorge M. Pedreira. «To Have and To Have not». The Economic Consequences of Empire: Portugal (1415-1822).-- Bartolomé Yun-Casalilla. The American Empire and the Spanish Economy: An Institutional and Regional Perspective.-- Pieter C. Emmer. The Economic Impact of the Dutch Expansion Overseas, 1570-1870.-- Paul Butel and François Crouzet. Empire and Economic Growth: the Case of 18th Century France.-- Stanley L. Engerman. British Imperialism in a Mercantilist Age, 1492-1849: Conceptual Issues and Empirical Problems.Publicad
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