Geochemical characteristics of Croatian prospective Bauxite deposit Mamutovac

2021 ◽  
Author(s):  
Dominik Teskera ◽  
Hana Fajković ◽  
Nikolina Ilijanić ◽  
Nenad Tomašić ◽  
Nikola Gizdavec ◽  
...  
Keyword(s):  
Chemical Elements ◽  
Classification Systems ◽  
Geochemical Analysis ◽  
The European Union ◽  
Bauxite Deposit ◽  
Genetic Classification ◽  
Specific Chemical ◽  
Horizon 2020 ◽  
The Core ◽  
Mineral Phases

<p>High demand for specific chemical elements from the group of rare earth elements (REE) has led to a detailed prospection and geochemical analysis of a previously known but unexploited bauxite deposit. The Upper Eocene karst bauxite within exploitation field Mamutovac, located in the municipality of Promina in the Dalmatian Hinterland (Croatia), is such a deposit, with estimated reserves of 112,000 tone.</p><p>In order to determine REE distribution pattern in the Mamutovac Ia deposit, a 25meter core was obtained by exploration drilling, down to the deposit footwall that is composed of Upper Cretaceous rudist limestone. For this study 23 subsamples were singled out, on average, per each meter of a core. </p><p>The degree of lateritization is determined by the Al<sub>2</sub>O<sub>3</sub>–SiO<sub>2</sub>–Fe<sub>2</sub>O<sub>3</sub> composition diagram (after Schellman, 1986), and lateritization varies from moderate to strong, with a lower degree of lateritization in a lower part of the core, down from 15 m.  Two different genetic classification systems indicate the origin of the bauxite is mafic, basaltic igneous rocks.            </p><p>Main mineral phases in the bauxite core samples were determined using X-ray powder diffraction (XRPD) analysis. The mineral phases through the whole core are similar, with boehmite, gibbsite, hematite, and anatase as the main phases. Additional mineral phases determined in the core are kaolinite, goethite, and rutile. </p><p>Results of geochemical analysis obtained by inductively coupled plasma emission/mass spectrometry (ICP-ES/MS) indicate an inhomogeneous distribution of REE through the core, with two main trends: from 0-15m and from 15-25m, with some elevation of REE abundances in the lower part of the core. In the upper part of the core,  total REE content (∑REE), including Y and Sc, ranges between 352 and 630 ppm (average 500 ppm) and light REE (La-Sm) to heavy REE (Eu-Lu) (∑LREE/∑HREE) ratios reach up to 10.2. For lower part ∑REE (including Y and Sc) ranges between 569 and 813 ppm (average 676 ppm) and light REE (La-Sm) to heavy REE (Eu-Lu) (∑LREE/∑HREE) ratios are up to 9.82. Singificant enrichment of LREE compared to HREE is present due to the fact that HREE are highly mobile in an alkalic karst environment and consequently removed through drainage channels. The most abundant REE is Ce. Within interval, 0-15m Ce ranges between 149.3-264.9 ppm (average 210.7 ppm), while within the interval 15-25m Ce ranges 152.7-301.7 ppm (average 219.56 ppm).</p><p>Correlation analysis shows no correlation between Sc and other REE and no significant correlation between Ce and other REE or potential bearing oxides. The correlation between Sc and Al<sub>2</sub>O<sub>3</sub> or Fe<sub>2</sub>O<sub>3</sub> suggests that Sc is likely bound to Al-oxyhydroxides and Fe-oxyhydroxides. Correlation between REE (Sc free) and P<sub>2</sub>O<sub>5</sub> indicates REE (Sc free) are probably contained in REE-bearing phosphates. </p><p>This activity has received funding from the European Institute of Innovation and Technology (EIT), a body of the European Union, under the Horizon 2020, the EU Framework Programme and Research and Innovation.</p>

Corporate culture as a driver of the corporate security of foreign military-industrial enterprises

2020 ◽  
Vol 16 (12) ◽  
pp. 2363-2380
Author(s):  
S.B. Zainullin ◽  
O.A. Zainullina
Keyword(s):  
Corporate Culture ◽  
Economic Security ◽  
The State ◽  
Industrial Complex ◽  
The European Union ◽  
Corporate Security ◽  
Industrial Enterprises ◽  
The Core ◽  
The Usa ◽  
The Military

Subject. The military-industrial complex is one of the core industries in any economy. It ensures both the economic and global security of the State. However, the economic security of MIC enterprises strongly depends on the State and other stakeholders. Objectives. We examine key factors of corporate culture in terms of theoretical and practical aspects. The article identifies the best implementation of corporate culture that has a positive effect on the corporate security in the MIC of the USA, the United Kingdom, the European Union, Japan ans China. Methods. The study employs dialectical method of research, combines the historical and logic unity, structural analysis, traditional techniques of economic analysis and synthesis. Results. We performed the comparative analysis of corporate culture models and examined how they are used by the MIC corporations with respect to international distinctions. Conclusions and Relevance. The State is the main stakeholder of the MIC corporations, since it acts as the core customer represented by the military department. It regulates and controls operations. The State is often a major shareholder of such corporations. Employees are also important stakeholders. Hence, trying to satisfy stakeholders' needs by developing the corporate culture, corporations mitigate their key risks and enhance their corporate security.

Epilogue

2018 ◽  
Author(s):  
Robert E. Goodin ◽  
Kai Spiekermann
Keyword(s):  
Social Media ◽  
European Union ◽  
Majority Rule ◽  
The European Union ◽  
Donald Trump ◽  
Epistemic Democracy ◽  
The Core ◽  
Echo Chambers ◽  
Filter Bubbles

This chapter reflects on the election of Donald Trump and the vote of the British electorate in favour of ‘Brexit’ from the European Union. While we refrain from judging the outcomes of these votes, we do discuss concerns pertaining to the lack of truthfulness in both campaigns. After rehearsing the lies on which the Trump and Brexit campaigns were based, we consider different explanations as to why these campaigns were nevertheless successful, and where this leaves the argument for epistemic democracy. Particularly worrisome are tendencies towards ‘epistemic insouciance’, ‘epistemic malevolence’, and ‘epistemic agnosticism’. We also consider the problematic influence of social media in terms of echo chambers and filter bubbles. The core argument in favour of epistemic democracy is that the pooling of votes by majority rule has epistemically beneficial properties, assuming certain conditions. If these assumptions are not met, or are systematically corrupted, then epistemic democracy is under threat.

scholarly journals New agents and regimens for diffuse large B cell lymphoma

2020 ◽  
Vol 13 (1) ◽  
Author(s):  
Liang Wang ◽  
Lin-rong Li ◽  
Ken H. Young
Keyword(s):  
B Cell ◽  
Cell Lymphoma ◽  
Checkpoint Inhibitors ◽  
B Cell Lymphoma ◽  
Classification Systems ◽  
Genetic Classification ◽  
Standard Regimen ◽  
Treatment Approaches ◽  
Large B Cell Lymphoma ◽  
Large B Cell

AbstractAs a widely recognized standard regimen, R-CHOP (rituximab plus cyclophosphamide, doxorubicin, vincristine, and prednisone) is able to cure two-thirds patients with diffuse large B cell lymphoma (DLBCL), and the remaining patients suffer from refractory or relapsed disease due to resistance to R-CHOP and fare poorly. Unsatisfied outcomes for those relapsed/refractory patients prompted efforts to discover new treatment approaches for DLBCL, including chimeric antigen receptor T cells, bispecific T cell engagers, immunomodulatory drugs, immune checkpoint inhibitors, monoclonal antibodies, antibody–drug conjugates, molecular pathway inhibitors, and epigenetic-modifying drugs. Herein, up-to-date data about the most promising treatment approaches for DLBCL are recapitulated, and novel genetic classification systems are introduced to guide individualized treatment for DLBCL.

scholarly journals Use of thermodynamic chemical potential diagrams (µCaO, µCO2) to understand the weathering of cement by a slightly carbonated water

Cerâmica ◽  
2008 ◽  
Vol 54 (331) ◽  
pp. 356-360 ◽  
Author(s):  
A. Blandine ◽  
G. Bernard ◽  
B. Essaïd
Keyword(s):  
Chemical Weathering ◽  
Chemical Potential ◽  
Chemical Elements ◽  
Continuous Solid Solution ◽  
The Core ◽  
Chemical Potentials ◽  
Knowing That ◽  
Cement System ◽  
Calcium Silicates ◽  
Hydrated Calcium

Cement is a ubiquitous material that may suffer hazardous weathering. The chemical weathering of cement in natural environment is mostly characterized by the leaching of CaO and the addition of CO2. The different weathering zones that develop at the expense of the cement may be predicted by the help of chemical potential phase diagrams; these diagrams simulate the behaviour of systems open to some chemical elements. Some components have a so-called inert status, that is to say the system is closed for these components, their amount in the system remains constant; some other components have a mobile status, that is to say these components can be exchanged with the outside of the system, their amount can vary from one sample zone to another. The mobile components are represented in the model by their chemical potentials (linked to their concentrations) that are variable in the external environment. The main features of the weathering of a cement system open to CaO and CO2 are predicted in a phase diagram with µCaO et µCO2 as diagram axes. From core to rim, one observes the disappearance of portlandite, ettringite and calcium monosulfoaluminate, the precipitation of calcite and amorphous silica, the modification of the composition of the CSH minerals (hydrated calcium silicates) that see a decrease of their c/s ratio (CaO/SiO2) from the core to the rim of the sample. For the CSH minerals, we have separated their continuous solid solution into three compositions defined by different CaO/SiO2 ratios and called phases 1, 2 and 3: CaO = 0.8, 1.1, 1.8 respectively for one mole of SiO2 knowing that H2O varies in the three compositions.

scholarly journals Reduction of the Temperature Sensitivity of Halomonas hydrothermalis by Iron Starvation Combined with Microaerobic Conditions

2015 ◽  
Vol 81 (6) ◽  
pp. 2156-2162 ◽  
Author(s):  
Jesse P. Harrison ◽  
John E. Hallsworth ◽  
Charles S. Cockell
Keyword(s):  
Physicochemical Parameters ◽  
Marine Bacterium ◽  
Chemical Elements ◽  
Extreme Environments ◽  
Iron Availability ◽  
Iron Starvation ◽  
Specific Chemical ◽  
Content Type ◽  
Distribution And Ecology ◽  
Microaerobic Conditions

ABSTRACTThe limits to biological processes on Earth are determined by physicochemical parameters, such as extremes of temperature and low water availability. Research into microbial extremophiles has enhanced our understanding of the biophysical boundaries which define the biosphere. However, there remains a paucity of information on the degree to which rates of microbial multiplication within extreme environments are determined by the availability of specific chemical elements. Here, we show that iron availability and the composition of the gaseous phase (aerobic versus microaerobic) determine the susceptibility of a marine bacterium,Halomonas hydrothermalis, to suboptimal and elevated temperature and salinity by impacting rates of cell division (but not viability). In particular, iron starvation combined with microaerobic conditions (5% [vol/vol] O2, 10% [vol/vol] CO2, reduced pH) reduced sensitivity to temperature across the 13°C range tested. These data demonstrate that nutrient limitation interacts with physicochemical parameters to determine biological permissiveness for extreme environments. The interplay between resource availability and stress tolerance, therefore, may shape the distribution and ecology of microorganisms within Earth's biosphere.

Monitoring and assessment of an oil spill event with very high resolution tools. 

2021 ◽  
Author(s):  
Ana M. Mancho ◽  
Guillermo García-Sánchez ◽  
Antonio G. Ramos ◽  
Josep Coca ◽  
Begoña Pérez-Gómez ◽  
...  
Keyword(s):  
High Resolution ◽  
Oil Spill ◽  
In Situ Observation ◽  
The European Union ◽  
Horizon 2020 ◽  
Research And Innovation ◽  
Port Authorities ◽  
Different Sources ◽  
Very High

<p>This presentation discusses a downstream application from Copernicus Services, developed in the framework of the IMPRESSIVE project, for the monitoring of  the oil spill produced after the crash of the ferry “Volcan de Tamasite” in waters of the Canary Islands on the 21<sup>st</sup> of April 2017. The presentation summarizes the findings of [1] that describe a complete monitoring of the diesel fuel spill, well-documented by port authorities. Complementary information supplied by different sources enhances the description of the event. We discuss the performance of very high resolution hydrodynamic models in the area of the Port of Gran Canaria and their ability for describing the evolution of this event. Dynamical systems ideas support the comparison of different models performance. Very high resolution remote sensing products and in situ observation validate the description.</p><p>Authors acknowledge support from IMPRESSIVE a project funded by the European Union’s Horizon 2020 research and innovation programme under grant agreement No 821922. SW acknowledges the support of ONR Grant No. N00014-01-1-0769</p><p><strong>References</strong></p><p>[1] G.García-Sánchez, A. M. Mancho, A. G. Ramos, J. Coca, B. Pérez-Gómez, E. Álvarez-Fanjul, M. G. Sotillo, M. García-León, V. J. García-Garrido, S. Wiggins. Very High Resolution Tools for the Monitoring and Assessment of Environmental Hazards in Coastal Areas.  Front. Mar. Sci. (2021) doi: 10.3389/fmars.2020.605804.</p>

scholarly journals Aerial Campaigns for Cal/Val purposes in the Context of Copernicus - Survey Results of the Project “Copernicus Cal/Val Solution (CCVS)”

2021 ◽  
Author(s):  
Stefanie Holzwarth ◽  
Martin Bachmann ◽  
Bringfried Pflug ◽  
Aimé Meygret ◽  
Caroline Bès ◽  
...  
Keyword(s):  
Gap Analysis ◽  
Model Development ◽  
Metrological Traceability ◽  
The European Union ◽  
Horizon 2020 ◽  
Research And Innovation ◽  
Wide Range ◽  
Data Policy ◽  
Survey Results ◽  
Essential Contribution

<p>The objective of the H2020 project “Copernicus Cal/Val Solution (CCVS)” is to define a holistic Cal/Val strategy for all ongoing and upcoming Copernicus Sentinel missions. This includes an improved calibration of currently operational or planned Copernicus Sentinel sensors and the validation of Copernicus core products generated by the payload ground segments. CCVS will identify gaps and propose long-term solutions to address currently existing constraints in the Cal/Val domain and exploit existing synergies between the missions. An overview of existing calibration and validation sources and means is needed before starting the gap analysis. In this context, this survey is concerned with measurement capabilities for aerial campaigns.</p><p>Since decades airborne observations are an essential contribution to support Earth-System model development and space-based observing programs, both in the domains of Earth Observation (radar and optical) as well as for atmospheric research. The collection of airborne reference data can be directly related to satellite observations, since they are collected in ideal validation conditions using well calibrated reference sensors. Many of these sensors are also used to validate and characterize postlaunch instrument performance. The variety of available aircraft equipped with different instrumentations ranges from motorized gliders to jets acquiring data from different heights to the upper troposphere. In addition, balloons are also used as platforms, either small weather balloons with light payload (around 3 kg), or open stratospheric balloons with big payload (more than a ton). For some time now, UAVs/drones are also used in order to acquire data for Cal/Val purposes. They offer a higher flexibility compared to airplanes, plus covering a bigger area compared to in-situ measurements on ground. On the other hand, they also have limitations when it comes to the weight of instrumentation and maximum altitude level above ground. This reflects the wide range of possible aerial measurements supporting the Cal/Val activities.</p><p>The survey will identify the different airborne campaigns. The report will include the description of campaigns, their spatial distribution and extent, ownership and funding, data policy and availability and measurement frequency. Also, a list of common instrumentation, metrological traceability, availability of uncertainty evaluation and quality management will be discussed. The report additionally deals with future possibilities e.g., planned developments and emerging technologies in instrumentation for airborne and balloon based campaigns.</p><p>This presentation gives an overview of the preliminary survey results and puts them in context with the Cal/Val requirements of the different Copernicus Sentinel missions.</p><p>This project has received funding from the European Union’s Horizon 2020 research and innovation programme under the grant agreement No 101004242.</p>

scholarly journals The Influence of the European H2020 Program on the Development of Regions: The Multiplier Impact of EU Funding in the Regions under Horizon 2020 in NUT III - North

2019 ◽  
Vol 17 (3) ◽  
pp. 853-871
Author(s):  
Natacha Jesus Silva ◽  
Diamantino Ribeiro
Keyword(s):  
Regional Economy ◽  
Community Support ◽  
Northern Region ◽  
The European Union ◽  
Final Phase ◽  
Investment Funds ◽  
Horizon 2020 ◽  
Regional Investment ◽  
Partnership Agreement ◽  
The Eu

The partnership agreement between the European Union and the Member States for the implementation of the European Structural and Investment Funds for the period 2014 to 2020 is in its final phase. This study analyzes the multiplier impact on regional investment of the European funds made available to the northern region of Portugal - NUTS III, until September 2018 and intends to answer the following questions: What is the amount invested in the regional economy for each euro of support allocated by the EU through the H2020 program, and what is the percentage distribution of community support versus investment per area of intervention?

scholarly journals Developing a Co-Creative Methodology of Narrative Artwork Production for the BEACONING Platform Metagame.

2020 ◽  
Author(s):  
Jackie Calderwood ◽  
Rachael Till ◽  
Vytautas Vasiliauskas
Keyword(s):  
Comic Book ◽  
The European Union ◽  
Book Art ◽  
Horizon 2020 ◽  
Educational Barriers ◽  
Interactive Narratives ◽  
Learning Platform ◽  
Process Creation ◽  
Gamified Learning ◽  
Media Learning

This paper presents an emergent co-creative methodology for the conception, making and sharing of narrative artwork for a gamified learning platform. Drawing on cinema, the graphic novel, and comic book art, two unusual characters were developed by Student Activators working with researchers at the Disruptive Media Learning Lab, Coventry University. The creative process began by using Clean Language and Clean Space to bring the artists’ character sketches to life, and developed into a series of basic, linear and interactive narratives with original working practices. Extending this collaboration, the paper is co-authored with the two students involved. The authors reflect from their different perspectives on the Collaborative process, creation of narrative artwork and building of a series of metagames for the BEACONING platform ‘Breaking Educational Barriers with Contextualised Pervasive and Gameful Learning’, co-funded by Horizon 2020 programme of the European Union.

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