bluuebunny/crossref_metadata_2025 huggingface dataset:
Geological materials testing and uncertainty calculations: a simple GUM-based algorithm
Authors: Xirouchakis D. , Bouzinos A.
Published: January 2017

We have applied a simple GUM-based procedure to estimate the uncertainties of physical and mechanical properties in geological materials. First, we define the quantity to measure and decide whether we want to work with units or relative quantities. Subsequently, we calculate the repeatability standard deviation (sr) and the standard uncertainty. If we have proficiency test data or use certified reference materials, we use them to estimate the laboratory bias, the reproducibility standard deviation (sR) and the reproducibility standard uncertainty. We also make sure that we know or have estimated the standard uncertainty of the instruments that we use in the measurements. The latter is typically taken from the instrument calibration or precision statement. We estimate the standard uncertainty of the reference materials and the standard uncertainty of the laboratory bias. The final two steps include the calculation of (1) the laboratory standard uncertainty uncorrected for bias and corrected for bias, and (2) the laboratory expanded uncertainty at the 95% confidence limit.
Chemostratigraphy of the Toarcian oceanic anoxic event from the Ionian Zone, Greece
Authors: Kafousia N. , Karakitsios V. , Mattioli E. , Jenkyns H.C.
Published: January 2017

A global perturbation in the carbon cycle has been recorded in the Early Toarcian (~ 183 Ma) and is marked by enhanced organic-carbon burial and mass extinction. It is also associated with high palaeotemperatures, both positive and negative excursions in carbon-isotope ratios, and the development of anoxic to euxinic conditions in marine environments: together these phenomena have been designated as constituting an Oceanic Anoxic Event. Here we provide a high-resolution, multiproxy biostratigraphic and chemostratigraphic study from a section that belongs to the central Ionian Zone in Greece. Calcareous nannofossil distribution, as well as the TOC, δ13Ccarb and δ13Corg, have all been determined. The nannofossil zones NJT 5b, NJT 6 and NJT 7 have been recognized in the section. In the NJT 5b zone a small positive excursion in TOC and negative excursion in δ13Ccarb is recorded, tentatively assigned to the Pliensbachian/Toarcian boundary. In the NJT 6 zone, the main negative carbon-isotope excursion characteristic of this interval is developed, associated with a relative increase in TOC. The difference in this section, compared with sections from the Pindos Zone but in common with sections elsewhere, is the record of a positive excursion in the NJT 7 zone in both organic and carbonate carbon isotopes. This study offers new biostratigraphic and geochemical data for the Ionian Zone, and further illustrates the impact of Toarcian Oceanic Anoxic Event in the Tethyan region.
Comparative evaluation of Rock- Eval and elemental analysis to determine organic carbon content in sediment samples
Authors: Pyliotis I. , Hamilaki E. , Pasadakis N. , Manoutsoglou E.
Published: January 2017

Rock-Eval and Elemental Analysis techniques are widely used in Organic Geochemistry for the determination of the organic content in sediment samples. Both techniques determine the carbon content using thermal treatment and pyrolysis and/or oxidation reactions. Due to the complex nature of the geochemical samples (different mineralogical composition, low organic carbon content, e.t.c) and the differences of their operational principles, disagreements are commonly observed between the analytical results of these techniques. In this work we studied in a systematic manner the performance of both techniques on a common sample set, consisting of immature, poor in organic carbon, sediments. It was demonstrated that both techniques applied on original and acid-treated samples, provide consistent analytical results for carbon content; that has also been showed by its mass-balance calculations showed.
Source rock potential of the Late Miocene Metochia formation of Gavdos Island, Greece
Authors: Pyliotis I. , Zelilidis A. , Pasadakis N. , Panagopoulos G. , Manoutsoglou E.
Published: January 2017

Rock-Eval method was used to analyze 53 samples from late Miocene Metochia Formation of Gavdos Island (south of Crete Island) in order to characterize the contained organic matter and to evaluate its potential as source rock. The samples were collected from Metochia Section which consists of about 100 m thick marlssapropels alternations. Organic matter analysis showed that the studied succession could be subdivided into two parts. The lower one, which is generally rich in organic matter and the upper one, which is poor. In the lower part the rich horizons in organic matter are characterized by Kerogen type II, III and IV, with low oxygen content, and with fair to very good potential for gas and/or oil hydrocarbon generation. Additionally, the studied samples are thermally immature. Taking into account that the studied area has never been buried in such a depth to reach conditions of maturation, as well as, that the studied section in Gavdos is connected with Messara basin located in the northeastern and, finally, that the main part of Gavdos basin, which is situated between Gavdos and Crete islands, has continuously encountered subsidence, we could conclude that sediments of Metochia Formation could act as source rocks but in the more deep central part of the Gavdos basin.
Effect of wet milling on the adsorption capacity of a greek natural zeolite used for the removal of heavy metals from solutions
Authors: Katsimicha D. , Pentari D. , Pantelaki O. , Komnitsas K.
Published: January 2017

The aim of the present work is the investigation of the effect of wet milling on the adsorption capacity of a Greek natural zeolite to remove heavy metal ions from solutions. The ultimate objective is to explore the potential of producing and using fine- grained zeolite in industrial and environmental applications. For this, a rich in clinoptilolite natural zeolite, was subjected to wet milling and 3 fractions were obtained (<10 μm, 10-63 μm, and 63-200 μm). The mineralogy of each fraction was determined through powder XRD and XRF analyses, while their particle size distribution and specific surface area were determined using the Laser Beam Diffraction Technique and the BET method respectively. The adsorption of Cu2+, Ni2+, Mn2+ and Cd2+ ions by each zeolite fraction was investigated using different initial metal ion concentrations (10 and 100 mg/L) and contact times (up to 72 h). The concentration of the adsorbent was kept constant (5 g/L), whereas no pH adjustment took place. The experimental results proved that wet grinding can result in the production of very fine natural zeolite (d50= 4.37 μm) without any loss of crystallinity and that this fraction exhibits substantial metal ion adsorption capacity. Adsorption is best described by the Freundlich isotherm.
BENTHIC FORAMINIFERA ASSOCIATED WITH THE ZOOXANTHELLATE CORAL CLADOCORA IN THE PLEISTOCENE OF THE KOS ISLAND (AEGEAN SEA, GREECE): SEA LEVEL CHANGES AND PALAEOENVIRONMENTAL CONDITIONS
Authors: Drinia H. , Koskeridou E. Koskeridou E. , Antonarakou A. Antonarakou A. , Tzortzaki E.
Published: January 2017

A Pleistocene section, cropping out in the northern Kos Island has been selected for study. The main lithology (clayey sands, sandy marls) of the section is interrupted by a prominent Cladocora bank which allows a proper extraction of its faunal contents and identification at species level. The evaluation of benthic foraminiferal assemblages from this bank helps to determine the range of the environmental controls in sedimentation. The foraminiferal assemblage is related to a relatively high supply of organic material and rather strong current intensities in water depth of the coral growth. We suggest that the fossil reef of Cladocora grew in coastal waters characterised by a marked seasonality, with periodical inputs of terrigenous sediments, moderate turbidity and higher temperature than today. Such results, although preliminary, suggest that Cladocora together with benthic foraminifera could be reference species for future work on changing Mediterranean climate and sea level.
MINERALOGICAL, PETROGRAPHIC AND STABLE ISOTOPIC STUDY OF ANCIENT WHITE MARBLE QUARRIES IN THESSALY, GREECE - II. CHASANBALI, TEMPI, ATRAX, TISAION MOUNTAIN
Authors: Melfos V. , Voudouris P. , Papadopoulou L. , Sdrolia S. , Helly B.
Published: January 2017

The present study focuses on the identification of marble sources from four ancient quarries in Thessaly, including Atrax, Tempi, Chasanbali and Tisaion and aims in characterizing the variations of the mineralogical and petrographic features, and the stable isotope ratios (δ13C and δ18O). The results provide additional data and complete the databases presented in previous works from Kastri, Kalochorion and Gonnoi. Microscopy was employed both to evidence the geometrical relationships among the mineral constituents, with particular reference to calcite, and to detect the accessory grains. The studied marbles demonstrate various textures, whereas the maximum grain size of calcites has been used to discriminate the marbles. The geometric relationships of carbonate grains, such as the grain boundary shape, were also evaluated. According to the stable isotope compositions, most of the samples plot in the same area, although some groupings are observed.
PERCEPTION OF FIRST-YEAR GEOLOGY STUDENTS ON THE TECTONIC PLATES THEORY
Authors: Katrivanos D. E , Makri K.
Published: January 2017

This paper examines alternative ideas and perceptions of first-year students of the Department of Geology at the Aristotle University of Thessaloniki, on the theory of tectonic plates, prior to completion of relevant courses. There is partial confusion both in terms of the conceptual background, as well as on the causal links between geological phenomena associated with the movement of tectonic plates. One out of two questioned students has systematic and consistent knowledge on the principles of the theory of tectonic plates, both at a conceptual and at a deterministic level, as well as in terms of geometric, kinematic and dynamic analysis.
BULLETIN OF THE GEOLOGICAL SOCIETY OF GREECE Volume XLIII, Νο 3
Authors: Geological Society of Greece Geological Society of Greece
Published: January 2017

no abstract available
ΠΕΡΙΕΧΟΜΕΝΑ / CONTENTS
Authors: Geological Society of Greece Geological Society of Greece
Published: January 2017

no abstract available
TUNNEL EXCAVATION IN CLAYEY-MARLY FORMATIONS: THE CASE OF KALLIDROMO TUNNEL
Authors: Diasakos Nikolaos , Amerikanos Panagiotis , Tryfonas Georgios , Vagiotou Eleni , Baltzois Vassilios , Bloukas Stavros , Tagkas Theodoros , Malandrakis Eleftherios
Published: January 2017

This paper presents the excavation of Kallidromo railway tunnel in clay and clay-marl formations. During the past years various approaches were considered both at the design and construction level, for the completion of this difficult part of the tunnel. Finally a method has been selected and successfully applied which combines the principles of yielding and double support.
THE ANTHROPOGENIC CHANGES IN THE GEOLOGICAL ENVIRONMENT IN THE SOUTH OF EAST SIBERIA
Authors: Kozyreva E.A , Khak V.A.
Published: January 2017

The investigation results of the geological environment’s condition in an areas marked by high anthropogenic load are described in this paper. In the southern East Siberia the strategy of key sites monitoring is used for this purpose. The selection of key sites is determined by the specific character of geological environment, as well as by the intensity and relationships of developing geological processes. In the studied territory the great variety of exogenic processes can be observed, the majority of them being activated by technogenic factors. To the inherited processes the gravitation, cryogenic and those induced by surface and subsurface water activity belong. In order to estimate the actual condition of the territories and to ensure the undisturbed exploitation of engineering structures, the specific features of lithosphere, the development of exogenic geological processes and the evolution of the anthropogenesis should be taken under consideration.
FLOOD HISTORY ANALYSIS AND ITS CONTRIBUTION TO FLOOD HAZARD ASSESSMENT. THE CASE OF MARATHONAS, GREECE
Authors: Diakakis M.
Published: January 2017

Flood history analysis contributes decisively to a more realistic assessment of flood hazard. In this work, systematic data collection on past flood events in Marathonas area (Attica, Greece) together with the development of a database, allowed the thorough study of flooding phenomena and their evolution over time. The study area consists of three dominant catchments with rich flooding history, namely Rapentosa, Charadros and Kato Souli. Information gathered from governmental and insurance organizations, emergency agencies, the press, field interviews and other documentary sources, along with geomorphologic and geologic evidence, were stored, structured and analyzed in a GIS platform and were used to reconstruct flood events with detail. Valuable results were produced concerning the causes, the characteristics, the spatial distribution of damages and the extent of inundation for each event. Moreover, the rate of recurrence of flooding phenomena was calculated across the floodplain, so that the areas of higher risk were identified and delineated. The active part of the floodplain was outlined and its migration overtime was studied. Furthermore, the methodology underlined the imperfections of the existing risk mitigation strategy and the past emergency experiences were appraised in a way that they highlight the priorities and will help improve management of future situations of risk.
GEOPHYSICAL INVESTIGATIONS AT NAFPLION CITY, GREECE. HYDROGEOLOGICAL IMPLICATION
Authors: Karmis P. D. , Giannoulopoulos P. , Tsombos P.
Published: January 2017

The application of selected geophysical methods within the framework of an Urban Geology investigation program performed by IGME at Nafplion city, contributed to the overall geo-scientific characterization of the study area. The methodology adopted included the application of Time Domain Electromagnetic, Electrical resistivity tomography, Gravity and Seismic Crosshole surveys. The results of the geophysical investigation provided quantitative information regarding the distribution of seawater intrusion in the area and determined factors controlling its extent within the investigated region. The intrusion may occur in three distinct horizons. The first within the shallow unconfined aquifer within the top 12 meters of fluvial deposits showing values of electrical conductivity in the range of 1 and 4 Siemens/m, corresponding to TDS values between 5000 and 20000 mg/L, as determined by the TEM surveys. Lower conductivity values between 0.3 and 1 Siemens/m are found within the second aquifer occurring between 15 and 45 meters. Similar order of conductivity values are found within the deeper horizon, lying below 45 meters depth, attributed also to seawater intrusion mainly in carbonate formations. Areas of fresh groundwater, were delineated by a combination of TEM, ERT and gravity methods. These areas are structurally controlled by faults and the presence of impermeable flysch overlying the limestone formation.
THE “URBAN GEOLOGY” PROJECT OF IGME: THE CASE STUDY OF NAFPLIO, ARGOLIS PREFECTURE, GREECE
Authors: Tsombos P. I , Zervakou A.D.
Published: January 2017

The Institute of Geology and Mineral Exploration of Greece (I.G.M.E.), in the framework of CSF 2000 – 2006 (Community Support Framework 2000-2006), implemented the pilot project “Collection, Codification and Documentation of geothematic information for urban and suburban areas in Greece - pilot applications”. Geological, geochemical, geophysical, geotechnical, hydrogeological and other geothematic data concerning the urban and surrounding areas of Drama (North Greece), Nafplio & Sparti (Peloponnese) and Thrakomakedones (Attica) were collected. Drillings, geological and neotectonic mapping and other “in situ” measurements and field work took place. All initial and derived analogical and digital data were compiled and processed in specially designed geo-databases in GIS Environment. The final results are presented in geothematic maps and other digital products (DEMs, 2D – 3D surfaces, geodatabases). Such data constitute the essential knowledge base for land use planning and environmental protection in specific urban areas. Through this pilot project, new scientific approaches, methodologies and standards were developed and improved in order to apply to other future projects concerning the major cities of the whole country.
APPLICATION OF A BAYESIAN APPROACH IN GIS BASED MODEL FOR EVALUATING LANDSLIDE SUSCEPTIBILITY. CASE STUDY KIMI AREA, EUBOEA, GREECE
Authors: Ilia I. , Tsangaratos P. , Koumantakis I. , Rozos D.
Published: January 2017

The purpose of this study is to present a Bayesian approach (weight-of-evidence method) that utilizes GIS and employs statistical analysis in defining the main factors contributing to the occurrence of landslides in Kimi, Euboea, Greece and to calculate the probability for future landslide manifestation. Landslide locations were identified from field surveys and interpretation of aerial photographs. Additional data were collected from various sources (topographic, geological, land cover maps etc.) and introduced into a spatial database using GIS technology. The above data sources have been used to generate various thematic data layers that have been resample to 20x20 m2 grid size. Applying the developed methodology it was possible to generate appropriate susceptibility map and thus to predict areas of instability. The results of the analysis were verified using the landslide location data, showing a satisfactory agreement between expected and existing data on landslide location. The outcomes could be used to reduce associated hazards, and to plan land use construction.
THE USE OF THE GEOGRAPHICAL INFORMATION SYSTEMS (G.I.S) IN THE GEOLOGICAL – MINERALOGICAL MAPPING OF THE PARANESTI AREA
Authors: Karageorgiou M. M. D. , Karymbalis E. , Karageorgiou D.E.
Published: January 2017

The aim of this study is to emphasize the role of the Geographical Information Systems (GIS) technology for the collection, organization, analysis, modeling and presentation of data required for the geological and ore-deposits mapping. As a case study area the region of Paranesti in Northern Greece was selected as it is of exceptional geological and uranium mining interest. For the geological and ore deposit mapping of the study area data derived from analogue maps at various scales (topographical and geological) along with detailed field geological observations and measurements were organized in a spatial database with a common geographical coordinate system utilizing GIS technology. This procedure revealed the relation between the geographical distribution of uranium deposits and the geological structure of the area as well as the effect of the active tectonics.
AMELIORATING THE SPATIAL RESOLUTION OF HYPERION HYPERSPECTRAL DATA. THE CASE OF ANTIPAROS ISLAND
Authors: Nikolakopoulos K. , Gioti Ev. , Skianis G. , Vaiopoulos D.
Published: January 2017

In this study seven fusion techniques and more especially the Ehlers, Gram-Schmidt, High Pass Filter, Local Mean Matching (LMM), Local Mean and Variance Matching (LMVM), Pansharp and PCA, were used for the fusion of Hyperion hyperspectral data with ALI panchromatic data. The panchromatic data have a spatial resolution of 10m while the hyperspectral data have a spatial resolution of 30m. All the fusion techniques are designed for use with classical multispectral data. Thus, it is quite interesting to investigate the assessment of the common used fusion algorithms with the hyperspectral data. The study area is Antiparos Island in the Aegean Sea.
TOWARDS A NEW PROCEDURE TO SET UP GROUNDWATER THRESHOLD VALUES IN ACCORDANCE WITH THE PREVISIONS OF THE EC DIRECTIVE 2006/118: A CASE STUDY FROM ACHAIA AND CORINTHIA (GREECE)
Authors: Christoforidou P. , Panagopoulos A. , Voudouris K.
Published: January 2017

The EU Water Framework and Groundwater Directives stipulate that EU member states have to assess groundwater chemical status by the use of groundwater threshold values derived for the protection of dependent ecosystems and human health. In the EU’s 6th FP BRIDGE project ‘‘Background cRiteria for the IDentification of Groundwater thrEsholds’’, a methodology for the derivation of threshold values (TV) for groundwater bodies is proposed. Threshold values are quality standards for polluting substances in groundwater that need to be formulated by the Member States for the status assessment of groundwater bodies. These values represent the concentration of a pollutant that cannot be exceeded in order to protect both the environment and human health. The proposed method derives groundwater threshold values based on environmental objectives for groundwater ”itself” as a receptor, using relevant reference criteria such as natural background levels, drinking and irrigation water standards. This methodology is tested on seven districts in Greece (two of them are analyzed in this paper). Concentrations of major ions, ammonium and data of electrical conductivity were examined. After a pre-selection on databases with groundwater samples the natural background level is determined as the 90- and 97.7 percentile.
GROUNDWATER FLOW MODELLING OF THE ALLUVIAL AQUIFER IN THE MOURIA AREA, SW GREECE
Authors: Karapanos E. , Burgess W. , Lambrakis N.
Published: January 2017

The objective of this paper is to study the impact of a reflooding of the former Mouria Lake on the hydraulic state of the Pyrgos area. The hydrogeological data acquired through field work were combined with the volumetric budget and the hydrological data from the entire Alfios River catchment in order to build the conceptual and numerical model of the groundwater flow system, which confirmed the hydraulic state before the drainage of the Mouria Lake. The model was also used to predict the future hydraulic state in case stresses change. For this purpose, Flowpath II, a numerical groundwater flow model, was used to evaluate the impacts of groundwater exploitation in the alluvium unconfined aquifer that is developing in the Holocene deposits. Due to the connection of the aquifer with the surface drainage canals near the coastal zone, the conceptual model was built upon irrigation data, rainfall data, and pumping rate data from the pumping stations that drain the area of the former Mouria Lake. These data were inserted in the model which was calibrated using a 24- month set of piezometric measurements. The simulation results show that the groundwater level before the drainage of the lake was 2m higher than the present situation and the same scenario will happen in case of reflooding the drained lake. Today, the pumping stations keep the groundwater level near the sea level throughout the hydrological year.
RADON CHANGES ALONG MAIN FAULTS IN THE BROADER AIGION REGION, NW PELOPONNESE
Authors: Katsanou K. , Stratikopoulos K. , Zagana E. , Lambrakis N.
Published: January 2017

In the present study the relationship between Rn and hydrochemical parameters in groundwater samples with the intense tectonics that prevail in the broader region of Aigion were investigated. Radon concentrations were measured in water samples collected from the unconfined aquifer, hosted in Plio-Pleistocene deposits, along the major faults of the research area. The spatial distribution of radon concentrations revealed the existence of three distinct zones along Aigion, Pyrgaki and Helike faults, respectively. The first two zones are characterized by high radon concentrations, whereas the third by low radon concentrations. It is also shown that 222Rn and CO2 concentrations display similar spatial distribution suggesting a common origin for these two gases, with CO2 being the major carrier gas for radon in deep fluids. The deformation and fragmentation of rocks along the fault zones enables the circulation of those fluids resulting in elevated radon concentrations in groundwater. However, other factors, such as the mineralogical composition of the sediments along the fault planes may restrict this process. The distribution of radon along the fault zones suggests that radon measurements can be used as a tool for the detailed mapping of active faults and if combined with seismic data even as a tool for study earthquake prediction.
RELATIONSHIP BETWEEN THE TRANSMISSIBILITY OF THE “ATHENS SCHISTS” AND THE PERCENTAGE OF THEIR COMPETENT ROCK COMPONENT
Authors: Kounis G. D. , Kounis K. G.
Published: January 2017

Aquitard formations consisted principally of “soft”, ductile schists, crystalline or not, including,as a minor component, thin intercalations of “hard” rocks, like carbonates, quartzites, sandstones, quartz veinlets and the alike, though of low transmissibility, and thus very low yielding, are of great importance in some places where groundwater is demanded, especially in drought periods for irrigation of parks, and other uses. To these formations belong the “Athens Schists“ (from a long ago term, after R.Lepsius). Formations like these, during the orogenic processes and their structural finishing, responded, under the compressive stresses, with a resultant normal extension strain contemporary or late, by folding affecting mostly the “plastic”, ductile “soft”, low rigidity components, by fracturing their competent, more rigid, “hard” components ; a fracturing hydraulically well performing, particularly that in carbonates which are better dissoluble into the circulating water. Further, a very good measure of the yield of the unit saturation front under unit hydraulic head is the transmissibility of the formation, which in turn becomes a good decision making parameter in the exploitation of groundwater. Therefore, the search for the correlation between the transmissibility (T) of the “Athens Schist” and the percentage (Hr) of the brittle, “hard”, hydraulically well performing component arised as a hydrogeologically sound idea. A very good and positive relationship T vs. Hr has been revealed, with an increase of transmissibility (ΔT) of “Athens Schists” per unit increase (ΔΗr) of the percentage found in the range of values. 0.38Χ 10-2 lit/sec.m.Hr < ΔΤ < 0.72 X10-2 lit/sec.m.Hr Values of T are very low, as expected for a formation of the hydrolithology of the “Athens Schist”, and mostly in between 0.4Χ 10-2 lit/sec.m < Τ < 8.5 X10-2 lit/sec.m The percentage (Hr) of the hard member is commonly in the range of values 2.8% < Hr < 17.5% Δελτίο της Ελληνικής Γεωλογικής Εταιρίας, 2010 Bulletin of the Geological Society of Greece, 2010 Πρακτικά 12ου Διεθνούς Συνεδρίου Proceedings of the 12th International Congress Πάτρα, Μάιος 2010 Patras, May, 2010 Transmissibility is calculated under unsteady state conditions of pumping tests in boreholes, using the Jacob approach. Drawdown (s) with time (t) from start of pumping offers, with a very good accuracy, the appropriate linear segment on semi-logarithmic plot. Values of T from pumping test data representing longer pumping time and a more expanded cone of depression to wider rock mass showed recharge condition with delayed yield. However, dependence of T on Hr is again positive and very good. The percentage (Hr) of the “hard” rock component of the “Athens Schist” was measured on drilling cuttings and in outcrops of the formation ( excavations for buildings foundations etc ) in the closer vicinity of boreholes, and results found were well comparable to each other.
IMAGING SEAWATER INTRUSION IN COASTAL ZONE OF KAVALA (N. GREECE) WITH ELECTRICAL RESISTIVITY TOMOGRAPHY
Authors: Mertzanides Y. , Economou N. , Hamdan H. , Vafidis A.
Published: January 2017

The needs for water supply in the western coastal zone of Kavala (N. Greece) have been rapidly increased during the last decades because of the high tourist and agricultural development. This resulted to a number of wells that drilled along the coastline. During summer period, when human and irrigation consumptions are maximized, phenomena of groundwater salinization are observed. Although restrictions to new drillings have been taken, salinization in some aquatic systems of the area tends to become a major environmental and economical issue. The only available information till now was a timeseries of groundwater electrical conductivity measurements, in some of the wells of the area. This information is useful but not adequate for the study of the salt intrusion mechanism. Geophysical investigation was carried out and electrical resistivity tomography (ERT) was chosen as the most appropriate technique for the case. The geophysical survey was set in a site between the coastline and an existing borehole. The 2D ERT profiles gave a clear image of geoelectrical heterogeneities, associated with seawater intrusion in the coastal aquifers, contributing to future measures towards a rational management of ground water resources in the area.
EARTHQUAKE RELOCATION IN GREECE USING A UNIFIED AND HOMOGENIZED SEISMOLOGICAL CATALOGUE
Authors: Karakonstantis A. , Papadimitriou P.
Published: January 2017

In this study phase data from the Cornet seismological network installed by the Geophysics-Geothermics Department (University of Athens) and the permanent networks of the Geodynamic Institute of the National Observatory of Athens and of the Geophysics Department of Thessaloniki (Aristotle University), for the decade 1996-2006, were merged. The data were jointly used to relocate the earthquakes that occurred in the broader area of Greece. Initially, single-event algorithms were applied by minimizing spatiotemporal residuals. Following, the hypocenters were relocated using a doubledifference algorithm where rms, as well as the horizontal and vertical location errors (erh, erz) were minimized and a consequence of that better locations were achieved. After that process the spatial distribution of the epicenters outlined major local tectonic features in Greece. Moreover, the same methodology was applied to the aftershock sequences of large earthquakes and the results were successfully compared with those obtained by available local networks that were deployed.
GIS as an educational tool: Mapping cultural sites in greek space-time
Authors: Galani L. , Theodorakopoulou K. , Skentos A. , Kritikos G. , Pavlopoulos K.
Published: January 2017

This paper deals with the cartographical presentation of cultural succession in Greek space-time associated with core concepts of geographic and historical education. The pedagogic value of this study is to develop five distinct skills: sense of time-scale, historical and geographic comprehension, spatial analysis and interpretation, ability to perform geo-historical research, and procedure of geohistorical decision-making. The methodology is based on the calibration of a set of criteria for each cultural site that covers the topics of economy, geomorphology, society, religion, art and science. Further analysis of these data forms a geodatabase. In addition, palaeogeographic and historical maps of the cultural sites derived by the geodatabase provide information about temporal and spatial changes. As result, students will be able to develop a multidimensional and interdisciplinary approach, in order to reconstruct the evolution of the site
Η ομορφιά μέσω του μύθου: κριτικές μεταμορφώσεις του αισθητισμού (1910-1930)
Authors: Ιωακειμίδου Λητώ
Published: January 2017

Δεν διατίθεται περίληψη.
OL περιπέτειες του εξωτερικού κόσμου: αφηγηματικές ιδιομορφίες σε τρεις Οιδίποδες του 20ού αιώνα
Authors: Ιωακειμίδου Λητώ
Published: January 2017

Δεν διατίθεται περίληψη.
Υπερρεαλιστική δομή και εικόνα στο έργο του Luis Bunuel
Authors: Σταμπάκης Νίκος
Published: January 2017

Δεν διατίθεται περίληψη.
Η «Ναϊάς» του ΑΡ. Ραγκαβή, το «Tamango» του Prosper Mérimée και η Ιεραποστολική Προπαγάνδα για την Απελευθέρωση των Μαύρων
Authors: Δράκου Γεωργία
Published: January 2017

[Δε διατίθεται περίληψη]
Το σώμα τον Τραγικού και η Γλώσσα της Σιωπής: Μια Προσέγγιση της Κινησιακής Αφήγησης με Αφορμή την Παράσταση Παντομίμας «Μήδεια από Σιωπή» της Ασπασίας Κράλλη
Authors: Τσατσούλης Δημήτρης
Published: January 2017

[Δε διατίθεται περίληψη]
Η πραγματεία περί μουσικής του Ευγενίου Βουλγάρεως
Authors: Ξανθουδάκης Χάρης
Published: January 2017

[Δε διατίθεται περίληψη]
Prenatal brain MRI samples for development of automatic segmentation, target- recognition and machine-learning algorithms to detect anatomical structures
Authors: Gentillon Hugues , Stefańczyk Ludomir , Strzelecki Michał , Respondek-Liberska Maria
Published: January 2017

In this data note, we present a sorted pool of fetal magnetic resonance imaging (MRI) specimens, selected for a project seeking to further develop a computer-vision software called MaZda, originally created for magnetic resonance (MR) image analysis. A link to download the samples is provided in the manuscript herein. This data descriptor further explains how and why these fetal MRI samples were selected. Firstly, thousands of cross-sectional images obtained from fetal MRI scans were processed and sorted semi-manually with other software. We did so because a built-in “samplesort” (sorting algorithm) is missing in MaZda version 5. Additionally, the software is unfortunately lacking effective and efficient algorithms to allow automatic identification and segmentation of anatomical structures in fetal MRI samples. Hence, the finals sorting steps were carried out manually via time-consuming methods — i.e. human- visual detection and classifications by the gestational age of pregnancy and the rotational plane of the MR scanner. Thus the latter correlates with the anatomical plane of the mother, rather than the hypothetical plane used to transect the fetus. In brief, we collated these fetal MRI samples in an effort to facilitate future research and discovery, especially to aid the improvement of MaZda.
Metodologia para planejamento de um de sistema cicloviário
Authors: CAMPOS Vania Barcellos Gouvêa , Cardoso Pablo De Barros
Published: January 2017

Neste trabalho apresenta-se uma metodologia para planejamento de um sistema cicloviário, servindo como base para órgãos municipais na implantação destes sistemas visando fomentar o uso da bicicleta como forma alternativa de trans-porte diário ao trabalho e por motivo estudo. A proposta da metodologia partiu, inicialmente, da análise de parâmetros que são utilizados em métodos que avaliam vias cicláveis ou rotas. Após este estudo, foi aplicada uma pesquisa junto a ciclistas com o objetivo de identificar quais eram suas rotas usuais e quais os parâmetros mais importantes para escolha de uma determinada rota nos seus deslocamentos diários. Assim sendo, do cruzamento destas duas bases de informações, foi possível definir indicadores para a avaliação de segmentos viários, a partir do cálculo de um índice denominado de Índice de Adequa-ção do Segmento para viagens por bicicletas. Este índice possibilita definir, numa rede viária, que segmentos são mais apro-priados para fazerem parte de um sistema cicloviário.
Atributos da distribuição de carga e indicadores de desempenho logístico: pesquisa com empresas que atuam na região metropolitana de São Paulo
Authors: Vieira José Geraldo , Carvalho Carla Deguirmendjian , Yoshizaki Hugo Yoshida
Published: January 2017

O objetivo deste artigo é investigar os principais atributos que interferem negativamente no transporte urbano de carga na Região Metropolitana de São Paulo (RMSP) sob o ponto de vista do operador logístico e transportador. Os atributos dizem respeito aos regulamentos para o tráfego e entrega de mercadoria, risco na entrega, colaboração entre as empresas envolvidas no transporte de mercadoria, fatores logísticos e requisitos ambientais. Os indicadores de desempenho logístico adotados por essas empresas também são investigados. Foi realizado um levantamento de dados com 119 representantes de operadores logísticos e transportadoras que atuam na RMSP. Para os respondentes, os atributos que mais dificultam a entrega de mercadoria são congestionamento, roubo de carga e restrição na circulação de veículo. A sazonalidade de entregas durante o mês e as longas filas para carga/descarga foram apontadas pelos operadores logísticos como os maiores problemas; para os transportadores, foram apontados os locais inadequados para carga/descarga e para estacionar veículos de carga. Os indica-dores cumprimento do prazo de entrega, atendimento das entregas urgentes, e tempo de entrega na última semana do mês parecem ser os menos afetados pelos atributos de carga.
Profile of microRNAs associated with coronary heart disease in patients with type 2 diabetes
Authors: Shvangiradze Teona A , Bondarenko Irina Z , Troshina Ekaterina A , Shestakova Marina V , Ilyin Alexander V , Nikankina Larisa V , Karpukhin Aleksandr V , Muzaffarova Tat'yana A , Kipkeeva Fatimat M , Grishina Kristina A , Kuzevanova Anna Yu
Published: January 2017

Introduction. Cardiovascular disease (CVD) remain the leading cause of death in industrialized countries. Patients with coronary heart disease (CHD) in combination with diabetes mellitus type 2 (T2DM) are characterized by more severe CHD and poor prognosis. Resent data indicate microRNAs (miRNAs) as important participants in the pathogenesis of various pathological conditions, including obesity, T2DM and CVD.The aim of this study was to determine expression of miRNAs associated with the development of CHD, and transforming growth factor beta (TGF-β) in a patients with T2DM and obesity Materials and methods. 42 patients with 1-2 degrees obesity and diagnosed T2DM were divided into 2 groups. The first group with CHD, the second group - without CHD. 9 miRNAs were evaluated: miRNA-1, miRNA-21, miRNA-26a, m miRNA-27, miRNA-33a, miRNA-33b, miRNA-133a, miRNA-133b, miRNA-208.Results and discussion. Significant differences were found in expression of miRNA-21, miRNA-26a, miRNA27a. An increased expression of miRNA-21, miRNA-27a was found in patients CHD while the expression of miRNA-26a was reduced in comparison with the group without CHD.Conclusion. The results of this study may be an initial step for the detection of molecular basis in CHD pathogenesis in these patients by quantifying miRNA expression. Introduction. Cardiovascular disease (CVD) remain the leading cause of death in industrialized countries. Patients with coronary heartdisease (CHD) in combination with diabetes mellitus type 2 (T2DM) are characterized by more severe CHD and poor prognosis. Resent data indicate microRNAs (miRNAs) as important participants in the pathogenesis of various pathological conditions, including obesity, T2DM and CVD.The aim of this study was to determine expression of miRNAs associated with the development of CHD, and transforming growth factor beta (TGF-β) in a patients with T2DM and obesity Materials and methods. 42 patients with 1-2 degrees obesity and diagnosed T2DM were divided into 2 groups. The first group with CHD, the second group - without CHD. 9 miRNAs were evaluated: miRNA-1, miRNA-21, miRNA-26a, m miRNA-27, miRNA-33a, miRNA-33b, miRNA-133a, miRNA-133b, miRNA-208.Results and discussion. Significant differences were found in expression of miRNA-21, miRNA-26a, miRNA27a. An increased expression of miRNA-21, miRNA-27a was found in patients CHD while the expression of miRNA-26a was reduced in comparison with the group without CHD.Conclusion. The results of this study may be an initial step for the detection of molecular basis in CHD pathogenesis in these patients by quantifying miRNA expression.
Solución de la ecuación de Hamilton-Jacobi para el oscilador de Caldirola-Kanai -Solution of the Hamilton-Jacobi equation for the Caldirola-Kanai oscillator
Authors: Pastrana-Arteaga Leonardo , Segovia-Chaves Francis Armando
Published: January 2017

El método de Hamilton-Jacobi permite determinar explícitamente la función generadora a partir de la cual es posible deducir una transformación que haga soluble las ecuaciones de Hamilton. Haciendo uso del método de separación de variables se soluciona la ecuación diferencial parcial de primer orden denominada ecuación de Hamilton-Jacobi; como caso particular consideramos el oscilador de Caldirola-Kanai (CK), el cual se caracteriza en que la masa presenta una evolución temporal de forma exponencial . Demostramos que la posición del oscilador CK presenta un decaimiento exponencial en el tiempo semejante al que se obtiene en el oscilador con amortiguamiento sub-crítico, donde se refleja la disipación de la energía mecánica total. Encontramos que en el límite en que el factor de amortiguamiento  es pequeño, el comportamiento es igual al de un oscilador con movimiento armónico simple, donde los efectos de disipación de la energía son despreciables.
Diseño y evaluación de una estrategia didáctica para enseñar a preguntar- Traducir	Diseño y evaluación de una estrategia didáctica para enseñar a preguntar 75/5000 Design and evaluation of a didactic strategy to teach to ask
Authors: Chamizo-Guerrero José Antonio , Ríos-López Griselda
Published: January 2017

En el presente trabajo se caracterizó a las preguntas en abiertas y cerradas después una revisión bibliográfica. Posteriormente, se diseñó una estrategia didáctica que permite a alumnos del bachillerato aprender a formular preguntas abiertas. La estrategia incluyó lecturas, experimentos y visitas. Finalmente, se llevó a cabo una intervención con varios grupos. Los resultados obtenidos indican que es posible enseñar a formular preguntas abiertas, aquellas que caracterizan las habilidades de pensamiento científico.
Inductively Coupled Plasma Optical Emission Spectrometry for Rare Earth Elements Analysis
Authors: He Man , Hu Bin , Chen Beibei , Jiang Zucheng
Published: January 2017

Inductively coupled plasma optical emission spectrometry (ICP-OES) merits multielements capability, high sensitivity, good reproducibility, low matrix effect and wide dynamic linear range for rare earth elements (REEs) analysis. But the spectral interference in trace REEs analysis by ICP-OES is a serious problem due to the complicated emission spectra of REEs, which demands some correction technology including interference factor method, derivative spectrum, Kalman filtering algorithm and partial least-squares (PLS) method. Matrix-matching calibration, internal standard, correction factor and sample dilution are usually employed to overcome or decrease the matrix effect. Coupled with various sample introduction techniques, the analytical performance of ICP-OES for REEs analysis would be improved. Compared with conventional pneumatic nebulization (PN), acid effect and matrix effect are decreased to some extent in flow injection ICP-OES, with higher tolerable matrix concentration and better reproducibility. By using electrothermal vaporization as sample introduction system, direct analysis of solid samples by ICP-OES is achieved and the vaporization behavior of refractory REEs with high boiling point, which can easily form involatile carbides in the graphite tube, could be improved by using chemical modifier, such as polytetrafluoroethylene and 1-phenyl-3-methyl-4-benzoyl-5-pyrazone. Laser ablation-ICP-OES is suitable for the analysis of both conductive and nonconductive solid samples, with the absolute detection limit of ng-pg level and extremely low sample consumption (0.2 % of that in conventional PN introduction). ICP-OES has been extensively employed for trace REEs analysis in high-purity materials, and environmental and biological samples.
Identification of the Upward Movement of Human CSFIn Vivoand its Relation to the Brain Venous System
Authors: Dreha-Kulaczewski Steffi , Joseph Arun A. , Merboldt Klaus-Dietmar , Ludwig Hans-Christoph , Gärtner Jutta , Frahm Jens
Published: January 2017

CSF flux is involved in the pathophysiology of neurodegenerative diseases and cognitive impairment after traumatic brain injury, all hallmarked by the accumulation of cellular metabolic waste. Its effective disposal via various CSF routes has been demonstrated in animal models. In contrast, the CSF dynamics in humans are still poorly understood. Using novel real-time MRI, forced inspiration has been identified recently as a main driving force of CSF flow in the human brain. Exploiting technical advances toward real-time phase-contrast MRI, the current work analyzed directions, velocities, and volumes of human CSF flow within the brain aqueduct as part of the internal ventricular system and in the spinal canal during respiratory cycles. A consistent upward CSF movement toward the brain in response to forced inspiration was seen in all subjects at the aqueduct, in 11/12 subjects at thoracic level 2, and in 4/12 subjects at thoracic level 5. Concomitant analyses of CSF dynamics and cerebral venous blood flow, that is, in epidural veins at cervical level 3, uniquely demonstrated CSF and venous flow to be closely communicating cerebral fluid systems in which inspiration-induced downward flow of venous blood due to reduced intrathoracic pressure is counterbalanced by an upward movement of CSF. The results extend our understanding of human CSF flux and open important clinical implications, including concepts for drug delivery and new classifications and therapeutic options for various forms of hydrocephalus and idiopathic intracranial hypertension.

SIGNIFICANCE STATEMENTEffective disposal of brain cellular waste products via CSF has been demonstrated repeatedly in animal models. However, CSF dynamics in humans are still poorly understood. A novel quantitative real-time MRI technique yieldedin vivoCSF flow directions, velocities, and volumes in the human brain and upper spinal canal. CSF moved upward toward the head in response to forced inspiration. Concomitant analysis of brain venous blood flow indicated that CSF and venous flux act as closely communicating systems. The finding of a human CSF–venous network with upward CSF net movement opens new clinical concepts for drug delivery and new classifications and therapeutic options for various forms of hydrocephalus and ideopathic intracranial hypertension.
Relocation Dilemma: Social and Cultural Challenges in the Relocation of the Victims of Mount Rokatenda Disaster
Authors: Humaedi Muhammad Alie
Published: January 2017

Mount Rokatenda has erupted several times, and brought about impacts on people in Palue Island, Sikka regency, East Nusa Tenggara. Since 1980, various attempts of disaster management through relocation have been carried out by the government, church, and non-governmental organizations. Unfortunately, the efforts to relocate the victims mainly fail because they always return to Palue Island. The threats of Mount Rokatenda and its vulnerability do not seemingly inhibit them to continue their lives there. This is evident in relocation attempt post-eruption in 2012-2013. The question is, how could the social and cultural aspects of Rokatenda victims hinder the relocation program? This ethnographic qualitative research which is done through in-depth interview and observation in April to May 2014 demonstrate that disaster events could also be cultural events. The emic aspect of the victims influence disaster management attempts, especially in the relocation program to the Besar Island. There is a feeling of secure and a sense of security from the ancestors, a view of prosperity for those who stay, and a strong value system that Palue Island is the place of birth, life and death has strongly bound the mythology and cosmology relationship of Palue people with their land. A re-interpretation of emic values through involving local traditional leaders is a strategic step towards the success of Rokatenda relocation program.