21 research outputs found
Machu Picchu. Camp. Erdis eating a tomato.
No full textPhotograph of E. C. Erdis eating a tomato at camp in Machu Picchu, taken on the Yale Peruvian Expedition of 1912. Photo 2739 from Herbert E. Gregory Book 13, page 6
Geologie und Hydrogeologie des Erdis-Beckens, NE-Tschad
No full textSeit Jahrzehnten ist allgemein bekannt, daß riesige Grundwassermengen unter der Sahara vorhanden sind.
Das Nubische Aquifersystem, das eine Fläche von etwa 2 Mio. km2 umfaßt, stellt eines der größten zusammenhängenden Grundwasserreservoire der Sahara dar. Die Ausbeute dieses Grundwassers blieb oft die einzige Möglichkeit für die Einwohner, das hyperaride Gebiet der östlichen Sahara teilweise landwirtschaftlich zu nutzen. So wurden seit Jahrhunderten im Bereich von Depressionen und Oasen kleine Gärten und Dattenpalmen angelegt, die durch flach gegrabene Brunnen bewässert wurden, wodurch die Bewohner sich eine bescheidende Existenz sicherten. Mit der Zunahme der Bevölkerung und der Steigerung des Wasserbedarfes in dieser Region werden immer mehr neue Projekte zur Grundwassernutzung entwickelt, ohne ausreichende Kenntnisse der hydrogeologischen Situation und der Grundwasserbildungsbedingungen zu haben.
Die vorliegende Arbeit befaßt sich mit der Geologie und der Hydrogeologie des Erdis-Beckens (südlicher Teil des Kufra-Beckens) als Teil des Nubi sehen Aquifer-Tystems. Anhand zahlreicher geologischer Profile und Beschreibungen wurden lithologische und stratigraphische Korrelationen zwischen den einzelnen paläozoischen Formationen in verschiedenen Teilen des Kufra-Beckens sowie mit dem benachbarten Murzuk-Becken durchgeführt. Weiterhin wurden Nord-Süd-Korrelationen zwischen den mesozoischen Formationen der Nubischen Serie des Kufra-Beckens und des Dakhla-Beckens durchgeführt. Durch Interpretation von Satellitenbildern wurde eine geologische Karte des Erdis-Beckens erstellt. Dabei wurden die paläozoischen Formationen genauer als bisher erfaßt und erstmals eine Gliederung der Nubischen Serie für diese Region in einer geologischen Karte dargestellt.
Anhand aeromagnetischer Messungen der Firma CONOCO läßt sich die Lage des Grundgebirges für den größten Teil des Arbeitsgebietes erfassen und damit die Sedimentmächtigkeit des Kufra-Beckens angeben.
Hydrogeologisch können im Arbeitsgebiet drei regionale Aquifere unterschieden werden: der untere kambro-ordovizische Aquifer, der von der tonigen Tanezzuft Formation bedeckt wird, der mittlere jungpaläozoische Aquifer, der von den Tonen des Karbons bedeckt wird, und der obere Nubische Aquifer, der hauptsächlich von mesozoischen Schichten aufgebaut wird. Die im Erdis-Gebiet nachgewiesenen Soeka- und Seen- Formation (Formation des Laes) innerhalb des Nubischen Aquifer sind im nördlichen Teil des Kufra-Beckens nicht vorhanden.
Isotopenhydrologische Untersuchungen zeigen, daß es sich überwiegend um fossile Grundwasservorräte handelt, die während vergangener humider Perioden in der Sahara lokal gebildet wurden, eine rezente Grundwasserneubildung kann ausgeschlossen werden. Zur Grundwassermassenberechnung wurde ein Rechenverfahren eingesetzt, das über Regressionspolynome die Volumina des Sedimentkörpers errechnete. Dabei wurden das gesamte Grundwasservolumen sowie die Reserven des Kubischen Aquifers im Kufra-Becken erfaßt.The existence of a huge volume of groundwater below the Sahara has been known since decades. The Nubian Aquifer-system which occupies approximately 2 Mio. km2 forms one of the great coherent groundwater reservoirs of the Sahara.
The Nubian Aquifer-system has been the only source of water for agricultural use in the hyper-arid land of the Eastern Sahara. For centuries, date-palm trees and small gardens have been set up in depressions and close to oases and have been irrigated using shallow dug wells. Through this the residents were assured of their simple existence.
With the increase in population water requirement has also increased. New projects on the utilization of this groundwater are being developed but without sufficient knowledge of the hydrogeological situation and the groundwater-recharge conditions.
This work deals with the geology and hydrogeology of the Erdis Basin (southern part of the Kufra Basin) which is a part of the Nubian Aquifer-system. Lithologic and stratigraphic correlations between the particular Palaeozoic Formations in different part of the Kufra Basin and adjacent parts of Murzuk Basin have been made through the study of numerous geological profiles. Further North-South correlations have been made between the Mesozoic Formations of the Nubian Series of the Kufra and Dakhla Basins. By interpretation of satellite imaginaries a geological map of the Erdis Basin has been produced and contains detailed classification of Palaeozoic and Mesozoic Formations in this region.
By interpreting aeromagnetic measurements of the CONOCO company, the position of the basement in the largest part of the area of work and hence the thickness of the Kufra Basin sediments have been obtained. Hydrogeological ly, the area of work could be differentiated into three regional aquifers: the lower Cambro-Ordovician aquifer overlaid by the argillaceous Tanezzuft Formation, the intermediate Upper Palaeozoic aquifer which is topped by clay (stones) of Carboniferous age, and the upper Nubian Aquifer made up mostly of Mesozoic strata. The Soeka Formation and the "Formation des Lacs" belonging to the Nubian Aquifer and proven to be present in the Erdis region, are absent in the northern part of the Kufra basin.
Isotope hydrogeological investigations show the existence of mainly fossil groundwater reservoirs which have been locally built up during the past humid periods of the Sahara and a recent groundwater recharge can be excluded. For groundwater mass calculations a method using regression polynoms was used and the volume of the sediments body was obtained and thus the total groundwater volume as well as the reserves of the Nubian Aquifer in the Kufra Basin were obtained.thesisDFG, SUB Göttinge
Relationships between hypoxia induced factor-1 alpha and F-18-FDG PET/CT parameters in colorectal cancer
No full textConclusion: Although the presence of a positive correlation between tumour SUVmax and %TmNcr shows that there are hypoxic cells in cancer tissue with high FDG uptake, the relationship between the presence of HIF-1 alpha and enhanced glucose metabolism and pathological prognostic factors of tumour was not shown. Strong nuclear immunohistochemical staining in tumour cells adjacent to invasive border and inflammatory cells leads us to believe that HIF-1 alpha plays a role in the invasion area of tumour microenvironment. (C) 2019 Published by Elsevier Espana, S.L.U. on behalf of Sociedad Espanola de Medicina Nuclear e Imagen Molecular
Relationships Between Hypoxia Induced Factor-1 alpha and 18F-FDG PET/CT Parameters in Colorectal Cancer
No full textKompetence varnostnika telesnega stražarja : diplomsko delo visokošolskega strokovnega študija Varnost in policijsko delo
No full textNamen diplomske naloge je predstaviti področje zasebnega varovanja in sicer kompetence varnostnika telesnega stražarja, njegov način dela, načela in naloge. Diplomsko delo obravnava zasebno varovanje ter oblike varovanja in licence za opravljanje zasebnega varovanja. Prav tako naloga obravnava varovanje oseb, varnostnika telesnega stražarja, njegove naloge, opremo in lastnosti.
Organizacija osebnega varovanja varovane osebe izvajajo varnostniki telesni stražarji, ki so zaposleni v družbi za zasebno varovanje. Koliko je potrebno varnostnikov telesnih stražarjev je odvisno od ocene stopnje ogroženosti na osnovi katere smo izdelali varnostni načrt.
V zadnjem sklopu diplomske dela smo predstavili intervju s katerim smo pri vprašanih osebah (nevtralna oseba, varnostnik telesni stražar, varovana oseba poslovnež) preverili splošno poznavanje varnostnika telesnega stražarja, njegove kompetence, vzrok najema varnostnika telesnega stražarja in zakaj se varnostnik telesni stražar obnaša tako kot se v času varovanja varovane osebe.
Postavljena vprašanja so se nanašala na kompetence, naloge, usluge, ogroženost, uporabo različnih sredstev, pooblastila, načinu nošenja orožja, varnost na slovenskih ulicah, poznavanje parmedicine in težavnost varovanja.The purpose of the thesis is to present the scope of private security, namely competences of bodyguard, his way of working principles and functions. The thesis deals with private security and form of protection and license to provide private security. It also deals with the task of protecting people, bodyguard its tasks, equipment and properties.
Organization of personal protection protected persons carried out by bodyguards who are employed in the private security companies. How much security is needed bodyguards depends on the level of threat assessments based on which we developed a security plan.
In the last part of the thesis we present the interview in which we interviewed persons (neutral person, a bodyguard, protected person namely businessman) to check the general knowledge of a security bodyguard, his competence, the cause of hiring a bodyguard and why the bodyguard behaves like at the time the protection of the protected person.
Issues raised were related to competencies, tasks, services, endangerment, using a variety of resources, powers, mode of carry weapons, safety Slovenian streets, knowledge of paramedical and the difficulty of protecting
The Role of the E-Marketplace as a Marketing Channel for Bed and Breakfast Enterprises in South Africa.
No full textThe business environment in the bed and breakfast (B&B), tourism and hospitality sector has seen the growth of online trading channels as a mode of e-marketing in various countries, including South Africa (SA). This paper focuses on the role of e-marketplaces in South African (SAn) B&B businesses. The paper discusses challenges often faced by B&Bs in the implementation of e-marketplace processes. The identified challenges include lack of resources, stiff competition from established companies, and the knowledge of how to implement online trading. Recommendations to reduce or eliminate the challenges are presented in the paper, in order to enhance the role of e-marketplaces in South African B&B entities. The researcher observed that e-marketplaces have a fundamental role to
play in SMEs, and that more can be tapped from this resource. The research findings will assist in educating B&Bs about e-marketplace marketing and the benefits and opportunities that this
phenomenon provides
Crisis management in Turkish construction industry
No full textVarious economical crises have affected Turkish economy during the last decade and construction industry has always been among the hardest hit; giving the idea that a comprehensive approach to crisis management is unavoidable. However, literature showed no findings related with crisis management applications by construction companies. Thus, a questionnaire survey was undertaken by the top management of 120 construction companies to investigate the degree of crisis management applications throughout the industry, mainly focusing on the outcomes during the economical crisis in 2001. Frequency analysis, Likert scale of comparison, Thurstone's paired comparisons, Pearson's chi-square test and Fisher's exact test were used to evaluate the results. The results showed that government policies and instable market conditions were the most important causes of crisis for Turkish construction companies. Meanwhile, only a small number of the companies utilized a systematic crisis management and the extent of crisis management applications varied depending on the size and the structure of the companies. Consequently, panic and powerlessness were the common feelings shared throughout the industry during the economical crisis in 2001. Despite, it was still encouraging that the managers utilized contemporary decision-making methods to get out of the crisis and their final decisions were generally in favour of strategically repositioning themselves. © 2005 Elsevier Ltd. All rights reserved
JIT in developing countries-a case study of the Turkish prefabrication sector
No full textJust in Time (JIT) is a production management system, whose success depends on the fulfilment of a number of environmental conditions; which presents the problem related with its applicability in developing countries. The literature shows that the poor supply and demand conditions, and the unstable economic environments are the main obstacles for JIT application in developing countries. Other factors include; high costs of; imported technology, training, maintenance and the quality systems, low costs of labour and, the cultural values based on both high power distance and uncertainty avoidance. The Turkish prefabrication sector was analysed as a case study. A questionnaire survey and a number of interviews were undertaken with Turkish prefabrication companies. Frequency, Thurstone's Paired Comparisons and correlation coefficient analysis were used to evaluate the questionnaire results. The results unexpectedly showed that inflation was not an obstacle against implementation of JIT by Turkish prefabrication companies, as it had a trivial effect on the companies' supply-chain policies. Additionally, unlike in most developing countries material supply conditions were satisfactory. The financial difficulties and the demand uncertainties were determined to be the main obstacles for the implementation of JIT in the Turkish prefabrication sector. © 2003 Elsevier Science Ltd. All rights reserved
Mobbing on construction professionals: causes, consequences, and precautions
No full textMobbing is a negative attitude and behaviour that may be exhibited by superior(s), subordinate(s), or equal(s) to the victim(s) in a workplace. The primary purposes of this kind of action are to passivate, frustrate, and finally send the victim away from the workplace. This study investigates the causes and types of mobbing in the construction industry, the perception, and reaction of construction professionals about mobbing and the effects of mobbing on victims’ families and social lives. A questionnaire was applied to 664 construction professionals. Collected data were analyzed by using frequency/percentage analysis, The analysis of variance (ANOVA), Thurstone paired comparisons judgments (TC), Pareto method and cross-tabulation analysis. The results show that the construction professionals are aware of the concept of mobbing, but not their rights. Intention to suppress the victim (by the superior), or jealousy/envy (by the subordinates or equals) are the essential reasons for mobbing. Besides, gender discrimination, egoism against female professionals and disagreement in political views are vital factors that lead to mobbing. As a result, professionals exposed to mobbing experience psychological disorders. To avoid mobbing, individuals and companies should develop mobbing prevention and dissuasion strategies such as support from specialists, training and awareness-raising activities. © 2019, © 2019 Informa UK Limited, trading as Taylor & Francis Group
JIT in developing countries - a case study of the Turkish prefabrication sector
No full textWOS: 000183396300010Just in Time (JIT) is a production management system, whose success depends on the fulfilment of a number of environmental conditions; which presents the problem related with its applicability in developing countries. The literature shows that the poor supply and demand conditions, and the unstable economic environments are the main obstacles for JIT application in developing countries. Other factors include; high costs of, imported technology, training, maintenance and the quality systems, low costs of labour and, the cultural values based on both high power distance and uncertainty avoidance. The Turkish prefabrication sector was analysed as a case study. A questionnaire survey and a number of interviews were undertaken with Turkish prefabrication companies. Frequency, Thurstone's Paired Comparisons and correlation coefficient analysis were used to evaluate the questionnaire results. The results unexpectedly showed that inflation was not an obstacle against implementation of JIT by Turkish prefabrication companies, as it had a trivial effect on the companies' supply-chain policies. Additionally, unlike in most developing countries material supply conditions were satisfactory. The financial difficulties and the demand uncertainties were determined to be the main obstacles for the implementation of JIT in the Turkish prefabrication sector. (C) 2003 Elsevier Science Ltd. All rights reserved
