bluuebunny/crossref_metadata_2025 huggingface dataset:
Grupo Pesquisas & Publicações
Authors: Pinto Ricardo Figueiredo , Pinto Victória Baía , Silva Aníbal Neves da , Brito Carlos Alexandre Felício , Garcia Paulo Sérgio , Melo Janaina Santana de , Ribeiro Joseana Moreira Assis
Published: November 2022

Desde junho de 2020, quando criamos o Grupo Pesquisas e Publicações – GPs até o momento, novembro de 2022, conseguimos realizar nove encontros científicos eventos que reuniu mais de mil acadêmicos e profissionais de diversas áreas do conhecimento.
Nestes nove encontros, todos on-line, foi possível reunir estudantes e profissionais de todas as regiões brasileiras e profissionais de doze países que, todos, muito contribuíram para o êxito dos nossos encontros, alcançando mais de 90% de todas as metas estabelecidas para os eventos.
Este é o terceiro e-book específico produzido por membros do GPs, porém ao longo dos dois anos e cinco meses em atividade o GPs, seus membros publicaram em todos os nove encontros realizados por este grupo, o que traz um saldo muito positivo da produção científica deste grupo de pesquisa participando em pelo menos em mais dez outros e-books publicados.
Estamos finalizando nossas atividades de publicações em 2022 com a publicação deste e-book que está sendo lançado no IX Encontro Científico do Grupo Pesquisas & Publicações-GPs, isso nos dá a sensação de dever cumprido, mas com a certeza em continuar produzindo r publicando novas pesquisas no próximo ano que se aproxima.
Queremos desejar a todos um excelente final de ano de 2022 na expectativa de que em breve podermos compartilhar novas produções científicas com toda a nossa comunidade acadêmica e científica.
Queremos deixar aqui o nosso imenso agradecimento a todos que contribuíram com GPs ao longo deste ano, e em especial aos membros do grupo que estão sempre dispostos a colaborar, produzir, apresentar trabalhos, ministrar cursos, participar de bancas acadêmicas, publicar nos nossos e em outros eventos, além de outras atividades inerentes ao GPs, sempre levando o nome do nosso grupo ao redor do mundo.
Stress and Adaptability among English Lecturers: An Interview Analysis
Authors:   Universitas Pamulang, Haryati Haryati , Andrian Diyah Iis i ,   Universitas Pamulang
Published: November 2022

Covid-19 pandemic affects on education and leads to stress as a timeless problem in teaching process in schools or universities. Lectures need to find the joy of their teaching activities and make them comfort at working place by having adaptability acquired from surroundings. The study aims to find out the sources of stress among English lecturers and how they overwhelm the stressful situation. This study applies the descriptive qualitative method to elaborate the analysis. It also engages 6 EFL lecturers of English Department of Universitas Pamulang selected from some categories: working more than six years and showing the high level of stress. They are selected through the questionnaire distribution. Furthermore, the writers conducted an in-depth semi-structured interview to obtain the data. The interview focuses on seeking the two main points: to identify and describe the source of stress in teaching process during the pandemic and to enlighten aspects that assist the lecturers to have adaptability in the stressful circumstance. As the results, the participants share the factors why they get burnout within pandemic circumstances: E-learning system, other system changes, students’ low communication, workload and impromptu task; moreover, they share how to adapt with the situation they face: family relationship, positive personality, positive vibes, and working partners. These assist the lecturers to encourage themselves to work more.
PELATIHAN PENGEMBANGAN MEDIA PEMBELAJARAN BERORIENTASI MERDEKA BELAJAR
Authors: Ramadhani Widya , Laurens Theresia , Molle Juliana S , Sapulette Fentje
Published: November 2022

The Covid-19 pandemic has changed the pattern of education. Especially with the Independent Learning Program, teachers are required to be creative and innovative, teachers must create a happy atmosphere in learning. One way is to develop learning media that makes students enthusiastic in learning online. Learning videos are audio-visual media as a teacher's tool in delivering material to make it easy for students to understand and the Canva application that can support learning materials to be more interesting. The purpose of this service is to improve the quality of teachers by developing learning media according to the independent learning program. This service is carried out offline at SD N 1 and 3 Waimital. The result of this training is that teachers are able to develop video-based learning media because it really helps clarify subject matter so that teachers can implement the Independent Learning Program
Filosofi Arsitektur Pertahanan
Authors: Prapsetyo Agung , Ahmad Irdam , Yanto Yanto , Saptono Edy , Lestari Kiki
Published: November 2022

Menurut UU RI No. 3 Tahun 2002, Pertahanan negara adalah segala usaha untuk mempertahankan kedaulatan negara, keutuhan wilayah NKRI, dan keselamatan segenap bangsa dari ancaman dan gangguan terhadap kedaulatan bangsa dan negara. Arsitektur (KBBI) adalah seni dan ilmu merancang atau metode dan gaya rancangan suatu serta membuat konstruksi bangunan, jembatan, dan sebagainya. Arsitektur Pertahanan secara keilmuan belum terdefinisi secara akademis. Arsitektur Pertahanan secara filsafati merupakan rumpun ilmu teknik atau ilmu sosial? Atau keduanya? Penelitian bertujuan untuk mengkaji Arsitektur Pertahanan dalam dimensi Filsafat Ilmu Pertahanan. Metode penelitian menggunakan metode kualitatif dengan studi kepustakaan/dokumentasi dalam pengumpulan data serta pendekatan deskriptif analisis berdasarkan aspek ontology, epistomologi, dan aksiologi dalam mengkaji Arsitektur Pertahanan. Hasil penelitian adalah Tinjauan Filsafat Arsitektur Pertahanan baik dalam tinjauan ontology tentang kedudukan arsitektur pertahanan dalam rumpun ilmu pengetahuan, epistomologi bahwa arsitektur pertahanan pada hakekatnya merupakan multidisiplin ilmu yang terintegrasi secara selaras saling melengkapi guna kebutuhan manusia, dan aksiologi bahwa arsitektur pertahanan bernilai dan dibutuhkan guna menciptakan keamanan dan keselamatan negara dan bangsa.
Development of Mobile Learning Platform as A Learning Supplement for Tafsir Hadith Course
Authors: Ramadhan Mochammad Rizal , Hamdan Achmad
Published: November 2022

This study aims to: 1.) Design a mobile learning platform for the Tafsir Hadith course; 2.) analyzing the development of a mobile learning platform in the Tafsir Hadith course; 3.) analyzing the implementation of the mobile learning platform in the Tafsir Hadith course; 4.) analyzing the evaluation of the mobile learning platform in the Tafsir Hadith course. The development model used is the 4D model developed by Thiagarajan, which includes define, design, develop, and distribution. The results showed that the product-based test based on expert and media expert judgments was obtained at 84.16% and 83.33% in the feasible category. Then the results of the limited trial were obtained at 81.61% and the field trial at 88.33% in the very feasible category. Therefore, it can be said that the development of a mobile learning platform in the Tafsir Hadith course is very suitable to be used as a learning supplement.
Sustainable Development and Digital Literacy in Educational Practice and Politics. Case study on participative geospatial technologies applications of Greek secondary students
Authors: Exarchou Evi , Klonari Aikaterini
Published: November 2022

In the 21st century, our world faces various challenges that greatly affect modern life and show the dynamic relationship and interaction of human activities with space and the environment and the immediate need to ensure sustainable development. The answers on how to achieve this interaction and raise sustainable development issues from the education sector are presented in this research. Specifically it is explored the participative geospatial technologies applications (PGST) of Greek secondary students in geographical and environmental learning for sustainability. Data analysis from these applications showed that students acquired skills such as participatory interaction, interpersonal communication, geospatial thinking and high cognitive functions (collaboration, crisis and feedback).
Assessment of Concrete Footpath Upheavals in Heatwaves
Authors: Bradford Mark
Published: November 2022

Most concrete footpaths are cast without steel reinforcement and in segments between bituminous joints, with the joints intended to accommodate thermal expansions (and contractions) of the pavement. However, a combination of prolonged heatwave conditions and the ingress over time of material into the joints produces a situation in which the pavement does not deflect in its plane, but instead experiences a sudden upheaval buckle between the joints. These buckles are quite abundant, are increasing in number with hotter days, and they pose a risk to pedestrian safety, necessitating costly repair by regulatory bodies. Based on an energy formulation, this paper develops a solution in closed form with which to assess the vulnerability of a footpath to blow up (or to experience an upheaval buckle) on hot days as a function of the ambient temperature, material properties, and geometric layout. The solution allows for the design of a pavement that has a low probability of upheaval during its intended life, and for assessing the likelihood of existing pavements for such buckling.
Brain and heart tumors in Sprague-Dawley rats exposed to mobile phone radio frequencies
Authors: BELPOGGI FIORELLA , Vornoli Andrea
Published: November 2022

Final results regarding brain and heart tumors in Sprague-Dawley rats exposed from prenatal life until natural death to mobile phone radiofrequency field representative of a 1.8 GHz GSM base station environmental emission
The Ramazzini Institute (RI) performed a life-span carcinogenic study on Sprague-Dawley rats to evaluate the carcinogenic effects of RFR in the situation of far field, reproducing the environmental exposure to RFR generated by 1.8 GHz GSM antenna of the radio base stations of mobile phone. Male and female Sprague-Dawley rats were exposed from prenatal life until natural death to a 1.8 GHz GSM far field of 0, 5, 25, 50 V/m with a whole-body exposure for 19 h/day. In 2018, we reported the final results regarding brain and heart tumors. A statistically significant increase in the incidence of heart Schwannomas was observed in treated male rats at the highest dose (50 V/m). Furthermore, an increase in the incidence of malignant glial tumors was observed in treated female rats at the highest dose (50 V/m), although not statistically significant. The RI findings are consistent with the NTP results on RFR exposure, as both reported an increase in the incidence of brain and heart tumors of the same histotype of those observed in some epidemiological studies on cell phone users. These studies provide sufficient evidence to call for the reevaluation of IARC conclusions regarding the carcinogenic potential of RFR in humans.
Putting accelerated carbonation of bottom ash into practice: operation of a semi full scale continuously fed rotating drum reactor
Authors: Weigand Harald , Brück Felix , Schnabel Kevin
Published: November 2022

Bottom ash is the dominant residue from municipal solid waste or refuse-derived fuel incineration. Disposal costs chiefly depend on the leachability of trace metals and salts. The mobility of these constituents is classically minimized by ageing the material for several months. Ageing involves the oxidation of metals, dissolution and precipitation of hydroxides and salts, and most importantly, carbonation of the bottom induced by the uptake of atmospheric carbon dioxide. Technically enhanced exposure to carbon dioxide sources has been referred to as accelerated carbonation. Here we report on the successful implementation of the accelerated carbonation of bottom ash in a continuous pilot-scale rotating drum reactor operated with the flue gas of a cogeneration plant. The system was tested in 20 field trials that aimed at stabilizing the ash such as to comply with the regulatory standards for disposal on a lower landfill class or for its geotechnical re-use. Performance and process efficiency were addressed by maximizing reactor loading and minimizing the residence time of bottom ash. While leachtate values of the fresh bottom ash were indicative of a hazardous waste pertaining to a class III landfill, the carbonated material fulfilled the regulatory standards for a class I landfill and was, in addition, complied with the standards for geotechnical re-use. In the field trials bottom ash residence times could be cut to 30 minutes thus allowing for an on-line integration of the accelerated carbonation process.
Effect of hydrogen peroxide on caffeine oxidation by sono-Fenton technology
Authors: Lomas Jose , Camarero Luis , Ferreiro Cristian , Sardon Lara , Villota Natalia
Published: November 2022

Oxidation of waters containing 100.0 mg L-1 of caffeine was conducted by a sono-Fenton treatment employing an ultrasound power of 720W at pH=3.0 and T=25°C. The oxidizing action of hydrogen peroxide was studied in a range between [H2O2]0=0-250.0 mM, using iron ratios of 0.7 mol Fe2+/mol C8H10N4O2. The oxidation of caffeine was fitted to second order kinetics, obtaining removals of 98% when dosing 485 mol H2O2/mol C8H10N4O2. During the oxidation, the water acquired a strong brown colour at the same time as there was a strong increase in turbidity and degree of aromaticity. The interaction of (hydro)peroxo-iron complexes with the byproducts of caffeine degradation (1,3,7-trimethyluric acid, theobromine, paraxanthine, theophylline) generated supramolecular structures responsible for this phenomenon, being 116 mol H2O2/mol C8H10N4O2, the relationship that induced colour and aromaticity, while the formation of turbidity was favoured by using 29 and 116 mol H2O2/mol C8H10N4O2.
A system dynamics model to explore the water-land-energy-food-climate nexus in Latvia
Authors: Susnik Janez , Masia Sara , Indriksone Daina , Bremere Ingrida , Vamvakeridou-Lyroudia Lydia , Brouwer Floor
Published: November 2022

Water, energy, food/land use and climate are connected a system defined by complexity, feedback and delay, and are commonly referred to as the nexus which operates across scales. Therefore the characteristics of the nexus change depending on the scale being considered, the location, and the sectors of interest. It is essential to clearly define study boundaries in terms of scale and sectors prior to modelling or assessment. System dynamics modelling (SDM) is an approach developed for studying complex systems, and has found widespread applications elsewhere, especially in the environmental and natural sciences. SDM has seen increasing use, with many recent examples applied to a wide variety of complex (environmental) issues. Due to its flexibility, it is an ideal tool to explore the nexus: many disparate sectors can easily be combined and interlinked in one coherent modelling environment.
SIM4NEXUS (www.sim4nexus.eu) is an ongoing H2020 research project that is developing policy-relevant serious games for 12 case studies in scale from sub-national to global. Quantitative SDM models are being developed for every case in close collaboration with a dedicated case study lead. Here, the SDM and baseline results are presented for the Latvia case study. In this case, the principle nexus sectors of interest are land use (changes), energy generation, and water quality impacts. Of particular interest is the drive towards a low carbon economy through the cultivation of crops for energy (biomass). However, this may hinder other targets such as increasing food security, protection of forested lands, and preserving and improving water quality and biodiversity. The SDM captures these critical elements, dynamically linking the nexus sectors but with a focus towards the biofuel and energy sectors (moving towards biomass and away from fossil fuel reliance), and the concomitant impacts on the water, land and climate sectors (e.g. the impacts of converting crop or forestry land to biocrop areas, and the impacts for water quality and national CO2-e emissions). Policy options, developed with local expert stakeholder groups, are to be included in order to fully assess nexus-wide impacts of current, and potential future, policy directions within Latvia. The model will feed a serious game aiming to elucidate nexus wide policy impacts to decision makers, giving them a better idea of potential nexus-wide impacts without having to implement uncertain and potentially expensive measures.
Colour changes during the carbamazepine oxidation by photo-Fenton
Authors: Qullatein H. , Lomas J. , Villota N
Published: November 2022

Oxidation of waters containing 50.0 mg L-1 of carbamazepine was conducted by a photo-Fenton reagent employing a UV lamp of 150W, at pH=3.0 and T=40°C. The oxidising action of hydrogen peroxide was studied in a range between [H2O2]0=0-15.0 mM. When applying stoichiometric ratios of 2 mol C15H12N2O:20 mol H2O2:1.8 mol Fe2+, the maximum formation of colour (0.381 AU) is promoted. The colour may be generated by by-products of degradation of carbamazepine that have chromophore groups in its internal structure, such as oxo and dioxo-carbazepines, which would generate colour during the first minutes of oxidation, while the formation of acridones would slowly induce colour to the water.
Dynamic heat map as a part of the regional energy transition
Authors: Noll Florian , Baur Frank , Wern Bernhard
Published: November 2022

Heat maps show the heat and cold demand of residential, commercial and industrial buildings as well as the waste heat from industry. They combine these two aspects in order to plan new heating/cooling grids. By planning the thermal energy supply in a central way, the efficiency of the energy production and the overall exergy rate are also increased. The paper will present the methods of modern web-based heat mapping with a user oriented interface in the example of Saarland region, Germany. An overview of the heat demand survey including development of building and settlement typology by clustering as a base of the heat mapping will be given. In a forecast, further possibilities by a dynamic approach related to demography but also to response functions for users are elaborated.
Conventional and organic rice production in Northern Italy: What is the (environmentally) best?
Authors: Jacopo Bacenetti , Luigi Orsi , Marco Parolini , Alessia Cavaliere
Published: November 2022

Italy is the most important European rice producer with about 230000 ha. Over the years the area dedicated to organic rice production is rapidaly growing.
In this study, using the Life Cycle Assessment (LCA) approach, the environmental performances of rice production in Italy considering both conventional rice production (CRP) than organic rice production (ORP) was evaluated.
Inventory data were collected by means of surveys in 69 farms located in Northern Italy, 20 for ORP and 49 for CRP. The paddy rice yield ranges from 3 to 4.6 t/ha for organic production and from 6 to 9 t/ha for the conventional one.
The achieved results highlighted how the best cultivation practice depends on the evaluated impact category and by the specific cultivation practices. On average the impact for ORP are higher than for CRP but, above all for ORP, there is a wide variability of the environmental performances. CRP usually performs better than ORP mainly due to higher average yield (+50/+300% respect to ORP), fertilization with mineral fertilizers instead of organic ones (such as compost or green manure), lower seed rate at sowing, and higher possibility to control pests and diseases thanks to the use of pesticides (herbicides and fungicides).
Do Environment-related technologies strengthen the competitiveness of local systems?
Authors: Orsi Luigi , De Noni Ivan , Ganzaroli Andrea
Published: November 2022

Environmental innovation is considered one of the key drivers of sustainable development and economic growth. However, we still know very little about the organizational factors underling the development of this category of innovations and their relative competitive effect. In this paper, we focus on regions and we look at the specific effect of environment-related technologies and collaborative environmental inventions on the competitiveness of European regions. In fact, the complex and multidisciplinary nature of environmental innovation is expected to further strengthen the competitive advantage of regions and the strategic significance of geographical proximity. A longitudinal study of 232 European regions over the period 2000-2013 was organized using data from the RegPat, Cambridge Econometrics and Eurostat databases. Our main results confirm the positive effect of environment-related technologies and local collaborative networks on regional competitiveness with significant implications in terms of policy making.
A comparison between the past and future expected wind conditions in the European coastal environment of the Mediterranean Sea
Authors: RUSU Eugen
Published: November 2022

In the last years, exploitation of the wind power has been constantly increasing together with the size of the turbines. Furthermore, by 2030 wind energy is expected to supply around 30% of EU’s power demand. Offshore wind represents a significant future opportunity, since resources are abundant and more stable. In the North and Baltic seas more experience is gained on bottom fixed turbines, but also many initiatives emerge to accelerate the development of floating devices, such as the projects in the Mediterranean and Atlantic. From this perspective, the objective of this work is to analyze the expected dynamics of the of the wind conditions in the European coastal environment of the Mediterranean Sea. The study is focused on estimating the average and extreme wind speeds for the 30-year time interval 2021-2050. In parallel, an analysis of the historical wind data for the 30-year period 1976-2005 is also performed. The climatic wind fields provided by the Global Change Assessment Model are considered in the analysis under the Representative Concentration Pathway scenario 4.5. This is the most probable scenario and assumes that the CO2 emissions will increase until 2040 and then decline.
An analysis of the expected climate change effects in the vicinity of the main harbors from the Black Sea
Authors: Rusu Liliana
Published: November 2022

The objective of this work is to analyze the dynamics of the environmental matrix in the context of climate change in the vicinity of the main harbors from the Black Sea. The main environmental parameters considered for analysis are wind and waves. The climatic wind fields provided by the Rossby Centre regional atmospheric model are analyzed until the end of the 21st century, considering the results corresponding to the Representative Concentration Pathway scenario 4.5. These wind fields are used to force a wave modelling system based on the SWAN (Simulating Waves Nearshore) model. In this way, the wind and wave data expected along the entire 21st century in the vicinity of the most important harbors of the Black Sea are provided. From the analysis of these wind and wave data, an enhancement of the extreme wind conditions can be noticed. On the other hand, due to the high variability in the wind direction, the amplitudes of the extreme waves are expected to slightly decrease.
The role of catchment properties on the importance of initial hydrologic conditions for seasonal hydrological forecasting in alpine areas
Authors: Stergiadi Maria , Avesani Diego , Righetti Maurizio , Borga Marco , Zaramella Mattia
Published: November 2022

A well-known approach to seasonal hydrological forecasting involves the use of ensembles as forcing to a hydrological model, based either on historical meteorological data (Ensemble Streamflow Prediction, ESP) or on forecasts produced by one or more dynamic climate models (multi-model approach). This work aims at investigating the role of initial hydrologic conditions (ICs) and seasonal climate forecast skill on the accuracy of seasonal hydrologic predictions in alpine regions, as a function of catchment properties. The Integrated Catchment-scale HYdrological Model (ICHYMOD) is employed, forcing it with historical meteorological data and multi-model ensemble climate predictions produced by the climate forecast systems NCEP CFSv2 and ECMWF SEAS5 (the latter analysis is not included in the present work). The hydro-climatic prediction system is tested on two catchments in the Eastern Italian Alps, that are different in terms of orography and soil/groundwater storage capacity. The diverse catchment properties result in differential parameterization of the subsurface processes in the hydrological model, hence in a different impact of the initial hydrologic conditions on the seasonal runoff predictions.
Detection of Alpha-induced radioluminescence in the ultraviolet C range for Nuclear Decommissioning Applications
Authors: Gamage Kelum , Crompton Anita
Published: November 2022

The close range of traditional alpha radiation detectors makes detection time-consuming and potentially hazardous. Alpha-induced radioluminescence in the ultraviolet C (UVC) wavelength range (180-280 nm) may be the mechanism through which stand-off detection can be achieved. The UVTRON (Hamamatsu) solar-blind flame sensor is sensitive to photons of wavelengths between185 – 260 nm and has a low background count due to the absorption of natural UVC in the atmosphere. It has successfully detected a Po-210 source of 6.95 MBq from 20 mm distance, and flowing gases over the source, especially xenon, has shown the signal can be significantly increased. As a mature technology, which is small, robust, low-cost and easily available, the UVTRON would be ideal for inclusion in a scanning, stand-off, alpha detection system. It has been shown, however, to be sensitive to gamma and beta radiation and this would need to be taken into account in any system design. However, that this sensor can be used in normal lighting conditions makes it a potential candidate for stand-off alpha detection in field conditions, and results of distance, scanning and detection experiments support this.
Analysis of hydrochemical time series
Authors: Kolarec Biserka , Žeravica Antonija
Published: November 2022

Agricultural activity of spreading fertilizers may, in case they are washed away to an aquifer, result in a groundwater contamination. There was a research conducted in Croatia on the lower part of the Danube-Sava canal which is occupied by extensive agricultural production to measure the groundwater pollution by nitrate nitrogen, ammonia nitrogen and phosphorus. Amounts of these nutrients were measured six times a year over the period of fifteen years (2004. - 2018.) by installed hydrogeological piezometers. The obtained data, given for relatively long period of time, were analysed by methods of time series to determine trends. It was established that although concentrations of nitrate and ammonia nitrogen occasionally exceeded the value of maximum allowable concentration, long term trends of all pollutants are still slightly decreasing.
Deciphering Coastal Vulnerability Index (CVI) for the coastal areas of Rhodes Island and the possible impact on tourism
Authors: Vandarakis Dimitris , Panagiotopoulos Ioannis , Loukaidi Valia , Kyriakou Kelly , Kyriakidou Chara , Gad Franka , Sourianos Evaggelos , Kapsimalis Vassilis , Drakopoulou Paraskevi , Kikaki Aikaterini , Hatiris Georgios-Aggelos , Chatzinaki Maria , Morfis Ioannis , Sioulas Andreas
Published: November 2022

Rhodes Island, located in the southeastern Aegean Archipelagos. Coastal areas, extended sandy beaches, people’s hospitality, and adequate infrastructure are principal factors that have increased the touristic value of the island. The estimation of the Coastal Vulnerability Index is important, since coastal environments play an important role for the tourist decision. Coastal systems are the most sensitive in environmental changes. In this study CVI is used, in order to indicate the most vulnerable areas, through the interpretation and the calculation of various parameters. The data for the calculation of the CVI were mainly geomorphological, as long as fieldwork and laboratory analysis. The data were interpreted through GIS platform. GIS environment contributes to the simultaneous processing of all these data, the representation of the spatial distribution of these parameters, and finally to depict of the most vulnerable areas. Thus, these results will contribute to the most suitable, sustainable solutions for the decision making authorities.
Storm identification and assessment of potential impacts in Rhodes Island, Greece
Authors: Gad F.-K. , Chatzinaki M. , Vandarakis D. , Kyriakidou Ch. , Hatiris G. - A. , Kapsimalis V.
Published: November 2022

Coastal areas are highly dynamic systems, threatened by extreme meteorological phenomena, such as wave storms. Therefore, the analysis of storms is a key element in coastal management, as providing information for the assessment of potential hazards due to such events. In this study a classification of storm events in Rhodes Island, Greece, is presented by means of cluster analysis. Storms were defined in terms of significant wave height, wave peak period and storm duration which are the main parameters reflecting the intensity of each event, and they were classified into five groups from weak to extreme (I-weak, II-moderate, III-significant, IV-severe, V-extreme). Subsequently, an assessment of storm impacts on coastal areas was carried out in terms of coastal flooding. More specifically, wave run-up was estimated by applying an 1D numerical model (MIKE21 BW). The potential hazards were assessed in selected beaches of Rhodes Island that are of great importance due to high population density and significant economic activities, such as tourism
ORGANIC SOLID WASTE MECHANICAL PRETREATMENT FOR THE OPTIMIZATION OF ANAEROBIC DIGESTION PROCESSES
Authors: Cesaro Alessandra , Cieri Valentina , Belgiorno Vincenzo
Published: November 2022

Anaerobic digestion has been recognized as the most demanding process for the valorization of organic solid waste towards the production of several, valuable intermediates (Dahiya et al., 2018), which can be further converted to a methane rich-gas to meet the current needs for renewable energy production.
The enhancement of methane generation is of great interest and it can be pursued via different strategies, including the pretreatment of the waste destined to the process. Press-extrusion has raised as a promising mechanical pretreatment, separating organic waste into a homogeneous liquid fraction addressed to wet anaerobic processes and a solid one, usually sent for composting.
Recent studies highlighted that the anaerobic digestion yields of press-extruded organic waste can be enhanced by increasing the organic loading rate to the digester (Novarino and Zanetti, 2012) as well as by mixing the liquid and the solid fractions from this pretreatment (Mu et al., 2018).
This study aimed at verifying the significance of both the organic loading rate and the mixing ratio between the liquid and solid fraction from press-extrusion by using a factorial design of experiment. Results were discussed and statistically elaborated to identify the operating conditions to be further tested for the integrated process optimization.
Aerial spectral index analysis for differential management zone delineation in a maize field
Authors: Gikas G. , Tsakmakis I. , Panagopoulos S. , Sylaios G.
Published: November 2022

Inhomogeneities of soil properties are responsible for within-field variations on plants’ growth and final yield. In this paper, initially, the variations of a Normalized Difference Vegetation Index (NDVI) field map obtained through a camera mounted on a drone were correlated with soil and plant properties measured in a typical maize cultivated field. Subsequently, the perspective of organizing the field into differential management zones through the NDVI was evaluated. The coefficient of variation for sand, silt, clay and soil organic matter content at five points was found to exceed 11% while the corresponding value for biomass and yield were greater than 14%, indicating significant spatial field soil heterogeneity and variations on plant growth. When correlated to NDVI, sand content exhibited a negative correlation (r=-0.86), while in the case of silt, clay, organic matter content, biomass and yield the correlation was positive (r>0.8). Lastly, the NDVI confirmed to be a powerful tool for the delineation of deferential management zones.
Adsorption technology in waste water treatment processes utilizing activated carbons as adsorbent materials prepared from waste tires: Recent research and trends in the removal of various toxic and persistent organic pollutants
Authors: Vagi M , Petsas A
Published: November 2022

Various toxic contaminants when are present in the environment pose a threat to the inhabitants of natural ecosystems owing to their non-biodegradable nature that increases their high toxicity towards non-target organisms. The large mass of solid wastes that are generated from waste rubber tires unquestionably consists a serious threat of environmental pollution around the world. Consequently, scientific interest has focused on several recycling strategies and practices converting them into more valuable products such as adsorbents widely utilized for the removal of several different inorganic and organic compounds from environmental samples. Hence, the main objective of the present study is to review all the data in the available published bibliography concerning the recent research and future trends on using granulated adsorbent materials and activated carbons obtained and prepared from waste tires and afterwards applied for the removal of persistent and residual quantities of pollutants.
Biogas production from sunflower residues: effect of pretreatment
Authors: Stamatelatou KATERINA , Spyridonidis Apostolos , Zhurka Marinela , Vasiliadou Ioanna , Lytra Vasiliki
Published: November 2022

Sunflower residues are a prominent substrate of renewable source for biogas production during anaerobic digestion (AD). However, due to its recalcitrant structure, pretreatment is necessary to increase its biodegradability. The objective of the present work was to evaluate the effect of the NaOH pretreatment on the methane production from sunflower residues. The residues were separated into stalks and heads after seed removal. It was observed that pretreatment caused an increase in the biochemical methane potential (BMP) during batch tests, but a decrease was recorded during continuous experiments.
Thermal degradation of perfluorooctanoic acid (PFOA)
Authors: Stockenhuber S. , Weber N. , Dixon L. , Lucas J. , Grimison C. , Bennett Mark , Stockenhuber M. , Mackie J. , Kennedy E.
Published: November 2022

Per - and polyfluoroalkyl substances (PFAS) are a group of environmental contaminants, that are dispersed throughout the world. A number of areas have been affected by their persistence and biomagnification. PFAS remediation of contaminated material requires extensive knowledge of the species involved. A method to simplify the study of the thermal degradation of PFAS is presented in this paper, providing a solution to experimental and analytical challenges. A three-zone furnace allowed manipulation of both reaction temperature and gas flowrate (and consequently residence time). The PFAS compound could be charged and vaporised in a separate zone. Adopting this experimental methodology, a kinetic model describing the decomposition of the PFAS can be devised. When reacting under an inert nitrogen atmosphere, perfluorooctanoic acid (PFOA) degraded at temperatures above 450 °C. The products observed were found to be hydrofluoric acid (HF) and carbon dioxide (CO2), along with a perfluoro-1-heptene species. Additional products of 1H-perfluorohexane or 1H-perfluoroheptane were also observed when residence times were increased. The effect of water vapour was also investigated, with similar behaviour to pyrolysis being observed, where a significantly higher concentration of HF was detected under otherwise similar reaction conditions. These preliminary results suggest water vapour accelerates the rate of PFAS decomposition.
Phosphorus and nitrogen recovery from wastewater in the form of struvite: Alternative magnesium sources
Authors: Koutsoukos Petros , Primikyris George , Siachos Konstantinos
Published: November 2022

Recovery of phosphorus and nitrogen from municipal and other types of wastewater may be achieved through the direct crystallization of struvite (magnesium ammonium phosphate hexahydrate, Mg·NH4·PO4·6H2O). Wastewater deficiency in magnesium makes it necessary for the external addition of magnesium to make up for the supersaturation needed. In the present work we have tested artificial seawater and saturated with respect to calcined magnesia (MgO) aqueous solutions as magnesium sources, as both sources are low cost and readily available. Both the spontaneous precipitation and the seeded crystal growth have been investigated at constant supersaturation (pH 9.0- 10.0, 25°C). Seawater accelerated the precipitation of struvite and narrowed the stability domain of the supersaturated solutions. Saturated magnesia solutions were shown to broaden the stability domain of the struvite supersaturated solutions. Magnesia suspensions were also tested with respect to their ability to induce crystallization of struvite. Measurement of the kinetics of crystal growth by potentiometric methods maintaining solution supersaturation, and AFM observations showed that the solid particles in magnesia saturated suspensions, provide favorable substrate for the overgrowth of struvite in combination with the appropriate supersaturation conditions.
Water quality control of Aposelemis Dam Reservoir
Authors: GYPARAKIS STYLIANOS , Diamadopoulos Evan
Published: November 2022

Τhe aim of this study was to check the water quality of Aposelemis Dam reservoir. The water quality was studied in nine (09) different water depths: 0 m, 02 m, 03 m, 05 m, 07 m, 09 m, 10 m, 13 m and 15 m. A sudden change in the temperature of the water was observed at the water depth of 7 m (thermoclinic phenomenon) and a change in pH (from pH> 8 to pH <7.5) at the depth of 3 m. At greater depths we identified a sharp increase in metal concentration, as well as prevalent solubility (Mn, Fe, etc.). Relating to microbial load, it was much lower in depths > 2m, compared to 0-2 m. As the depth increases the Total Organic Carbon (TOC) decreases in contrary with the nutrient concentration (N, P) which increases. Color and odor values appear elevated in depths greater than 5 m.
Biomass burning tracers in urban and rural particles in Silesia - Poland
Authors: Czaplicka Marianna , Janoszka Katarzyna
Published: November 2022

The major tracers are thermal degradation products from the biopolymer cellulose, namely the didehydromonosaccharide derivatives levoglucosan (LG), galactosan (GL) and mannosan (MN) and the resin acid derivative dehydroabietic acid, with minor β-sitosterol. The relative proportions of levoglucosan to mannosan (LG/MN) have been used for source reconstruction of combustion derived byproducts in atmospheric aerosols.
Major tracers eg. levoglucosan, galactosan and mannosan were measured at two sites in Silesia region and health resort (Krynica) during winter season 2016/2017. Levoglucosan, mannosan and galactosan were quantified using a validated gas chromatography mass spectrometry (GC/MS) method described in detail by Klejnowski K., Janoszka K., Czaplicka M. Atmosphere, MDPI, 2017, Vol. 8 (190). The obtained results showed that mean concentrations of the total tracers determined in air in winter season were 522 ng/m3 for Zabrze sampling point, 434 ng/m3 in the case Rokitno and 156 ng/m3 for Krynica. Levoglucosan was most abundant tracer of biomass burning, it was 84 % of determined tracers in Zabrze, 83 % in Rokitno and 87 % in case of Krynica.
Methodology development for implementing Life Cycle Analysis of energy production in the Czech Republic
Authors: Zakuciova Kristina , Štefanica Jiří , Šerešová Marketa , Kočí Vladimír , Zdeněk Vlček , Vitvarová Monika , Jan Opatřil
Published: November 2022

Energy mix of the Czech Republic includes various types of fossil energy sources, which currently do not have comprehensive methodology for assessing their environmental impacts. Life Cycle Assessment (LCA) is important tool for assessing such impacts through the whole life cycle of the sources. Ongoing national project “LCA of energy production in the Czech Republic” is focusing on implementing LCA on several case studies to analyze and compare different national energy sources and technologies from environmental point of view through the three phases of the life cycle – construction, operation and decommissioning. Such an extensive study requires development of methodology which covers necessary technological boundaries and parameters, as well as general principles of LCA methodology. The paper depicts the procedure of the methodology development for implementing LCA tool for energy production of various fossil, nuclear and renewable sources. Methodology will focus on technological and inventory criteria, LCA boundaries for various sources, selection of functional unit and identification of specific problems regarding LCA of energy sector.
Characterisation of Rare Earth Elements in Waste Printed Circuit Boards (WPCBs) and their bioleaching potential
Authors: Gonzalez Baez Alejandra , Purchase Diane , Garelick Hemda , Pantoja Munoz Leonardo
Published: November 2022

Printed circuit boards (PCBs) are part of everyday items such as cellular phones and computers, and they constitute a significant proportion of e-waste. PCBs contain hazardous components but also valuable and critical materials such as copper, gold, silver and rare earth elements. Rare earth elements (REE) are crucial to modern hardware and due to their increasing demand and high supply risk, they are now considered to be amongst the most critical elements in the world. In this research, WPCBs were supplied by local recycling companies after crushing/grinding process and metal analysis of the material was carried out. The concentration of the REE and their distributions in particle sizes is determined, and the potential of WPCBs for REE bioleaching is also discussed.
Development and promotion of the WEEE prevention culture in Greece
Authors: Charitopoulou Triantafyllia , Vogiatzidaki Evgenia Eleni , Gkitzeni Ioanna , Malliaris Markos
Published: November 2022

WEEE streams challenge the goals towards a circular economy, since WEEE contain valuable and scarce resources that could be prepared for a second life or recovered. In the framework of the project LIFE REWEEE (LIFE14 ENV/GR/000858), Hellenic Recycling Agency (HRA) aims to raise awareness among stakeholders and consumers on the preference for reuse rather than consumption and recycling. A set of specifications have been prepared, applicable to the collection, storage, sorting of WEEE and to all stages of the preparing for reuse process. The specifications aim to provide an integrated legal framework in Greece and simultaneously a standard procedure for managing WEEE in order to encourage the reuse of WEEE as promoted by the Directive 2012/19/EU and the MD 23615/651/Ε.103/2014. Moreover, a Guide describing prevention and management practices of WEEE addressed to citizens was prepared, which provides information to the citizens concerning ways of extending appliances’ life and alternative treatment ways of WEEE. Finally, Repair Events were organized for citizens who had the opportunity to repair their appliances without cost and to be introduced in an attractive way to the WEEE prevention culture. This paper presents the HRA’s actions to promote reuse as well as restrictions faced and further actions.
Saltwater a viable source of Energy for Sustainable Rural Development
Authors: Roohul Abad Khan , El Morabet Rachida , Al Mesfer Mohammed , Amadur Rahman Khan
Published: November 2022

Energy is the base for development in modern age. A sustainable renewable energy source is needed to overcome the requirement of special conditions and infrastructure for the development of rural areas. Saltwater is available in abundance and the energy can be harnessed directly with ease. The study analysed saltwater energy potential of three salt companies by varying salt concentration at the rate of 1%, 2%, 3%, 4%, 5% and 10 %. The company with higher energy potential was further analyzed at increased concentration of 15%, 20%, 25%, 30%, 40% and 50%. The energy potential was measured in terms of Voltage (V) and milliampere (mA) and readings were recorded at an interval of 10 seconds. The sustainability of the energy was determined in terms of carbon emission as compared to kerosene lamp widely used in rural areas as a fuel. The energy potential of saltwater energy is low but can be successfully used in rural areas for lightning purpose. The concluded that saltwater energy is a viable, readily available, economical and green source of energy for rural development
Microbial Concrete: A step towards mitigating the climate change and global warming at micro level
Authors: Roohul Abad Khan , El Morabet Rachida , Muhannad Alasiri
Published: November 2022

The post-industrial revolution anthropogenic activities are mainly responsible for Pollution worldwide. This pollution is recognized globally in terms of Global warming and Climate change as their resultant impacts are felt worldwide. The world-wide effort for mitigation of climate change and global warming are in place but are ineffective and not enough to overcome the pollution in Urban landscapes. This necessitates the requirement of a system and methodology that can be applicable in a sustainable manner without disturbing the Urban Landscapes. The present study analysis the potential of microbial concrete in terms of Carbon dioxide sequestration for King Khalid University Campus. The study found that the microbial concrete panel effectively reduced carbon dioxide in range of 2-3% from ambient air quality. Since the microbial concrete is an inbuilt part of the building it can be installed without hindering the Urban Landscape and change in user pattern. The microbial concrete is a green, sustainable and environment friendly solution to changing urban dynamics air quality.
Bioaugmentation process for PAHs contaminated soil remediation through microbial inocula from anaerobic treatment of lignocellulosic substrate
Authors: Ferraro Alberto , Massini Giulia , Mazzurco Miritana Valentina , Panico Antonio , Pontoni Ludovico , Race Marco , Rosa Silvia , Signorini Antonella , Fabbricino Massimiliano , Pirozzi Francesco
Published: November 2022

In the present work, an anaerobic bioremediation treatment was investigated for reclamation of polycyclic aromatic hydrocarbons (PAHs) contaminated soil. The PAHs contaminated soil was artificially prepared and seven different contamination conditions were tested. In particular, four soils were contaminated solely by naphthalene (A), anthracene (B), pyrene (C) and benzo[a]pyrene (D), respectively, whereas, three soils were contaminated by benzo[a]pyrene coupled with one of the other investigated PAHs (i.e. A+D, B+D, and C+D tests). Such conditions were tested in order to study the possible degradation kinetic for the single involved PAH (with aromatic rings ranging from 2 to 5) as well as for PAHs mixed with a 5-aromatic rings contaminant (i.e. benzo[a]pyrene). The investigated treatment was carried out in bioaugmented condition through two microbial inocula obtained from anaerobic digestion tests on lignocellulosic substrate. In more detail, the two inocula were differently enriched through experiments characterized by sequential re-inoculation on new substrate, for its subsequent treatment, every 24 h and 96 h, respectively. The present study focused on the PAHs degradation efficiency and pathways, and microbiological abundance characterization, thus providing a comprehensive and interdisciplinary view to assess the feasibility of the suggested treatment in the field of PAHs contaminated soil remediation.