bluuebunny/crossref_metadata_2025 huggingface dataset:
The effect of emotional intelligence on the learning achievement of physics high school students
Authors: Tepi Maria Yosephina , Daud Maimunah Haji , Nasar Adrianus , Wolo Daniel
Published: November 2022

This study aims to assess the impact of emotional intelligence on students' physics learning achievement. Eighty-three students were taken randomly to measure their emotional intelligence. A questionnaire that measured emotional intelligence and learning achievement was obtained through school documentation. The data were analyzed using simple regression. The findings show that empathy is the aspect of emotional intelligence that gets the highest score. The regression results show Fcount (25.87) > Ftable (3.96). The findings of this research reveal that there is an influence of emotional intelligence on students' physics learning achievement. Emotional intelligence is a factor in a student's ability to learn and succeed in physics.
The Influence of The Leadership Style of The Head of Madrasah, Teacher Capabilities on Teacher Performance in Tsanawiyah Madrasah Hikmatul Amanah Mojokerto
Authors: Idrus Ali , Tukiyo Tukiyo , Rosmika Enita , Sya'roni Muhammad , Hidayat M.
Published: November 2022

Every educational institution has a leader who has different abilities and leadership styles in improving the performance of their employees. In addition to the leadership style, performance is also influenced by the capabilities of each employee. This study aims to determine whether the principal's leadership style (X1) and teacher capability (X2) on teacher performance (Y) either partially or simultaneously, and which independent variables (X1 and X2) have a more significant influence on teacher performance. This research is a quantitative study that aims to test hypotheses between variables. The data used are primary data obtained directly from the respondents, as many as 48 people through filling out a questionnaire. The data analysis technique uses multiple linear regression, which is processed using SPSS. At the same time, all instruments in this study have been tested for validity and reliability, where all instruments have been declared valid because of the value T count > T table. In contrast, it has been declared reliable because it is greater than the Cronbach alpha value of 0.60 processed. They were using SPSS. The T-test results of leadership style obtained a sig value of 0.002 and a teacher's capability value of 0.000. These results indicate that the variables of leadership style and teacher capability significantly influence teacher performance. In contrast, the teacher capability variable has a more significant influence on teacher performance.
Student Search: The Study of Ethics Educational Leadership Management
Authors: Suriyadi Suriyadi , Sibuea Bismar , Suardi Suardi , Siahaan Amiruddin , Nasution Inom
Published: November 2022

Student Search is often interpreted as "looking for students", while in the context of management, the term means examination or search of students. The "legal umbrella" regarding the application of student search in educational institutions in Indonesia is still not specifically regulated by the government, especially the ministry of education and culture. This study aims to analyze student search from the ethical point of view of educational leadership management. This research uses a qualitative approach with a literature study method. The sources of data and study analysis materials are based on relevant scientific literature, including books, articles, proceedings (national/international), and final projects (thesis, thesis, or dissertation). The results of this study indicate that student search still leaves confusion (polemic) in its application because until now there has been no regulation from the relevant ministry or government that specifically addresses the ethics of examination of students. This is because the Criminal Procedure Code only regulates the procedures for searching the public in general (not specifically on students), as well as in the Regulation of the Minister of Education and Culture Number 19 of 2007 concerning Education Management Standards which does not specifically contain the rules for student search. Furthermore, the regulation only concludes that school rules and regulations are entrusted to the principal with the consideration of the education board and school committee.
A Study of Health Education: Knowledge and Mothers' Attitudes Towards Pulmonary Tuberculosis Treatment Seeking Behavior in Bengkulu City
Authors: Susilawaty Susilawaty , Kristiawan Muhammad , Sasongko Rambat Nur
Published: November 2022

The goal of this study was to determine the association between mothers' knowledge and behavior concerning pulmonary tuberculosis (TB) and their children's attitudes toward seeking treatment for pulmonary tuberculosis at health facilities in Bengkulu City. This is an observational study with a cross-sectional design. The research participants were women who had children who were at risk of TB, with 17 samples meeting the inclusion criteria but not the exclusion criteria. Inclusion criteria: Mothers with children are at risk of developing clinical tuberculosis as a result of household contact with smear-positive pulmonary tuberculosis patients. The child is under the age of five. Data collection techniques used include questionnaire testing, analysis of questionnaire, and measuring instruments as research instruments, collecting data with questionnaires, checking each respondent's answers in accordance with data collection procedures, and analyzing the data using computerized statistical methods. According to the findings, some respondents had limited awareness of TB illness in at-risk children, supported pulmonary TB disease in at-risk children, sought treatment for TB disease in at-risk children, and sought care for at-risk children at health facilities.
Creation and Movement of Action Plain For The Work Culture of Religious-Based Educational Organizations
Authors: Herman Herman , Juliana Rena , Hasan Khairuddin
Published: November 2022

This article describes the creation and movement of action plans for the work culture of religious-based educational organizations. The working culture of religious educational organizations is determined by the elements heart (qalbu), mind (aql) and passion. Heart (qalbu) controls the quality of academic and non-academic services supported by emotional intelligence, spirituality, and noble personality. Mind (aql) controls the quality of graduate results as educational production supported by intellectual, humanitarian, argumentative and rational intelligence. Passion controls the potential for good and bad quality of service results and educational products supported by mind (aql) and heart (qalbu). This study uses a qualitative library research method with a phenomenological approach in analyzing the factual conditions of educational organizations. The data analysis technique is by reviewing various relevant literatures with the focus of the problem being discussed. The results showed that the work culture of religious educational organizations was built up and further developed by creating a work culture by changing the way of thinking of working with the heart (qalbu), the perception of working with mind and heart (qalbu) and shaping work behavior to preventive, corrective and curative way. Then make an action plan movement on work culture by accelerating internalization of the values of work culture, working all day and all the time, effectively communicating, smoothly coordinating between areas and organizational units, and meticulous in monitoring and evaluating.
Pendidikan Islam Berbasis Kearifan Lokal dan Implementasinya Terhadap Kurikulum Merdeka Belajar
Authors: Afif Nur
Published: November 2022

Tujuan penelitian ini adalah implementasi kurikulum pendidikan Islam berbasis kearifan lokal dan upaya penanaman nilai-nilai Islam berbasis  kearifan  lokal  dalam praktek  pendidikan. Desain penelitian ini adalah Literature Review atau tinjauan pustaka. Hasil penelitian menunjukkan bahwa 1)  implementasi konsep merdeka belajar memang didesain agar peserta didik memiliki banyak alternatif kompetensi dan keterampilan yang relevan dikembangkan di masa depan. dikembangkan berbasis pemahaman dan pengamalan nilai-nilai tauhid secara radikal (mengakar kuat), kebebasan memilih dalam mengikuti perkuliahan dan praktik lapangan yang menjadi kebutuhan dan proyeksinya di masa depan: 2) Upaya menanamkan nilai-nilai pendidikan Islam dalam kearifan lokal dilakukan melalui nilai-nilai pendidikan Islam dalam kearifan lokal yang telah ditanamkan melalui metode pembudayaan agama berupa nilai keimanan , nilai ibadah, nilai akhlak dengan memadukan kebiasaan agama Islam dalam kurikulum pendidikan merdeka belajar.
TOURIST PROSPECTION STUDY IN THE LUNCASPRIE, BIHOR COUNTY, ROMANIA
Authors:   Student of University of Oradea, Faculty of Geography, Tourism and Sport, 1 Universitatii Street, 410087, Oradea, Romania, OANȚ Călin , HERMAN Grigore Vasile ,   University of Oradea, Faculty of Geography, Tourism and Sport, 1 Universitatii Street, 410087, Oradea, Romania
Published: November 2022

The development of tourism at the level of the Bihor tourist destination and the growing demand for new forms and alternatives to spend free time led to the identification of new possibilities for diversifying the tourist offer. In this context, the present study aims at the prospecting and analysis of tourism resources and infrastructure in order to capitalize on them through tourism. The opportunity for this approach is also given by the proximity of the Municipality of Oradea, as well as by the need of the residents of this city to escape at the weekend in an area totally different from the city.
Social networks and gamification in physical education: A case study
Authors: Montiel-Ruiz Francisco José , Sánchez-Vera María-del-Mar , Solano-Fernández Isabel M.
Published: November 2022

Recent research and studies on training plans in physical education agree on the need to incorporate digital technologies in teaching contexts. At the same time, the introduction of active methodologies, such as gamification, has become one of the major trends of recent years. In this paper we present the perception of teachers and students about a gamified proposal for physical education in secondary education that uses social networks as a way for communication, collaboration, and promotion of physical activity among students. Edmodo has been used to carry out this experience because, as a vertical social network, it has an attractive interface for students and protects their privacy by not requiring any personal data.

This is a qualitative research, with a case study methodological design, which has used the focus group and group interview as data collection techniques. The sample consisted of 10 teachers, which represents all the teachers participating in the experience, and 56 students. The results show the positive assessment, both by teachers and students, of the Edmodo social network as a virtual teaching-learning environment for physical education in secondary education, and gamification as an active methodology. Likewise, the influence that the proposal, based on the use of digital technologies and gamification, has had on the promotion of physical activity among pupils has been high.
Green Strategies and Business Ecosystems
Authors: Sulich Adam , Sołoducho-Pelc Letycja
Published: November 2022

The green strategies together with decisions create a business ecosystem in the Environmental Goods and Services Sector (EGSS). Such an ecosystem is a result of both technological development and strategy evolution. This paper aims to present and discuss the outcomes (as relations) of this sector activity. The adopted methods in this paper are un inductive inference method supported by a literature study and deduction methods supported by statistical calculations based on secondary data Eurostat. The main result of this paper is, that the main relations are: cooperation and the creation of strategic alliances; therefore, the creation of social value is favored.
Trifluralin-polluted soil treatment using nanosecond pulsed DBD plasma
Authors: Aggelopoulos Christos , Hatzisymeon Maria , Tataraki Despoina , Rassias Gerasimos
Published: November 2022

Cold atmospheric plasma (CAP) was examined as an advanced oxidation process (AOP) for the remediation of trifluralin in soil. Trifluralin is a commonly used herbicide, which is toxic and persistent in soil. CAP experiments were conducted using a cylinder-to-cylindrical-grid reactor layout, driven by a high voltage nanosecond pulse generator. This layout permits plasma discharges to be produced inside the pores of the soil. The initial concentration of the pollutant in a model sandy soil was set 200 mg/kg. The effect of CAP treatment was studied at different operational conditions (e.g. applied voltage and soil type). It was observed that increase of pulse voltage resulted in the increase of degradation efficiency of trifluralin. On the other hand, the use of a field loam soil seemed to decrease the degradation efficiency. In optimum operational conditions, CAP treatment seemed to have excellent performance; a complete removal of the pollutant was observed within a few minutes (3 min < t < 5min). At the same time, the system examined in the current study was proven to be highly-energy efficient.
Automated In-Situ Cyanotoxin Assessment Toolbox For Real-Time Surface Water Monitoring (CYANOBOX)
Authors: Antoniou Maria , Keliri Eleni , Hadjiantonis Antonis , Demosthenous Panayiota
Published: November 2022

Automated In-Situ Cyanotoxin Assessment Toolbox for Real-Time Surface Water Monitoring, CYanoBox, is a 3-year project, coordinated by the innovation and technology company CyRIC, for the development of novel biosensors, and reliable at-source detection of toxic metabolites. The project aims to deliver an autonomous, affordable, and easy to operate water monitoring system as an early-warning tool for surface waters affected by cyano-HABs. CYanoBox comprises of an innovative water processing system that can remotely filter and lyse the cyanobacterial cells in-situ so that an accurate measurement is taken for both the extracellular and intracellular concentration of one of the most important groups of cyanotoxins, the hepatotoxic microcystins. The focus is on optimizing the method to lyse the cells in a way that maximizes the recovery of targeted cyanotoxins, followed by the development of biosensors for cyanotoxins identification and quantification. Being able to detect accurately and remotely the concentration of cyanotoxins in surface water without the physical presence of humans, it will be beneficial to the actual waterbodies, administrators, local communities, and researchers. This system will remotely evaluate the severity of a bloom based on its toxicity and track changes in water quality that traditional discrete monitoring activities usually miss.
A detailed characterisation of household food waste and the implications of sorting behaviour on potentials for anaerobic digestion and nutrient recovery
Authors: Walk Steffen , Hausbeck Greta , Körner Ina
Published: November 2022

This study investigates household food waste (HH FW) generation in two socio-economically different areas in Lübeck, Germany. The applied waste characterisation protocol provided a detailed insight into the generation and separation behavior of FW collected in the municipal collection system. In total, four characterisation campaigns were conducted in both areas. Results show that about 47% of FW is avoidable. The socio-economic low area generated more FW with a lower source-separation performance. The share of avoidable FW was also higher in this area. The most common fractions found in total FW were fruit and vegetables, leftovers and canned food and bread. In addition to a substantial avoidable fraction, these commodity groups need to be prioritised in management strategies, such as for anaerobic digestion or composting.
Investigation of variables affecting UV-LED photocatalytic degradation of antibiotics ciprofloxacin and sulfamethoxazole
Authors: Bertagna Silva Danilo , Buttiglieri Gianluigi , Babić Sandra
Published: November 2022

In this study, photolytic and photocatalytic degradation of two antibiotics in ultra-pure water were analyzed. A lab-scale cylindrical reactor had its inner walls impregnated with TiO2 nanofilm for the photocatalytic experiments. In the first step, an optimized photoreactor design was chosen based on the degradation of ciprofloxacin (CIP) under UV-A. The impact of controlled periodic illumination (CPI) on kinetic rates and energy expenses was also studied. In the second step, degradation of both ciprofloxacin and sulfamethoxazole (SMX) were analyzed at different wavelengths (UV-A and UV-C) using the photoreactor design selected in the first step. Results show the optimization benefits of an appropriate photoreactor and CPI for photocatalysis. Each compound’s reactivity to different degradation pathways plays a major role in the process, so a careful study of the particularities of each system is paramount for lowering energy expenses.
Mercury in the coastal waters of Greece under the implementation of the Water Framework Directive (WFD)
Authors: Paraskevopoulou V. , Yfanti A. , Chalkiadaki O. , Botsou F. , Panagopoulou G. , Stathopoulou E. , Zeri C. , Tzempelikou E. , Dassenakis M.
Published: November 2022

Mercury (Hg) is an environmentally hazardous metal and a priority element in Mediterranean environmental monitoring. Hg is a priority pollutant in the main pieces of European legislation pertaining to the marine environment (the Marine Strategy Framework Directive - MSFD and the Water Framework Directive WFD).
Despite the environmental importance of Hg there is limited knowledge on levels in Greek waters. The Laboratory of Environmental Chemistry (LEC) analyses very low Hg concentrations (above 0.5ng/L) using state of the art equipment in clean room facilities and participates in the national WFD coastal zone monitoring since 2012 in collaboration with the Hellenic Centre for Marine Research (HCMR).
This paper presents the first attempt to evaluate Hg levels in the coastal waters of Greece in the last 8 years (2012-2020) and identify trends and spatial patterns. The Hg levels measured in all areas were well below the European Legislation threshold of 70ng/L (EC 2013/39). Increased levels of Hg were found, as expected, near the major cities of Greece (Athens, Thessaloniki) and the major rivers of Northern Greece as well as in some of smaller ports.
Offshore solar farm siting in the Aegean Sea
Authors: Vagiona Dimitra , Tzekakis George , Loukogeorgaki Eva , Karanikolas Nikolas
Published: November 2022

Climate change and its environmental effects have raised the need to use mild forms of energy. Solar photovoltaic panels and wind turbines are by far the biggest drivers of the rapid increase in renewable energy electricity generation. There are several technologies of photovoltaic systems such as ground systems, photovoltaic installed on roofs, floating systems, etc.
The aim of this paper is to identify and prioritize the appropriate sites for offshore solar farm (OSF) siting in the Aegean Sea (Greece), considering various restrictions and several evaluation criteria. The methodology includes: i) definition of the study area, ii) selection of exclusion criteria iii) geospatial depiction of incompatible sites, iv) selection of assessment criteria and v) application of entropy weight method and TOPSIS to hierarchically rank the sustainable sites for offshore solar farm deployment.
Nine (9) eligible Greek marine sites in the Aegean Sea (of total surface area that equals to 17.25km2) have been identified and are candidates for further evaluation. The three first most appropriate sites for the OSF siting in the Aegean Sea correspond to marine areas located close to, Thasos, Samothrace and Crete. The exploitation of offshore solar energy could be the way to make many coastal regions, islands and remote locations sustainable.
FeBio: R&D of novel 75 kWel AD plant for difficult agricultural residues: horse manure, straw and green waste
Authors: Porzig Michael , Wern Bernhard , Pertagnol Joachim
Published: November 2022

Substrates for biogas production will be provided mainly by residues in future. Without a complex and expensive pre-treatment, solid residues with dry matter (DM) content higher than 30%, e.g. horse manure, husk, grass or straw can only be used in small quantities in a wet anaerobic digestion (AD) plant to maintain a DM content of lower than 15%. Especially for small quantities of dry and solid residues, typical for rural and agricultural areas, the application of small-scale dry AD-plants with a maximum capacity of 75 kWel can be a technical smart solution. For solid residues, the dry AD process in combination with a Combined Heat and Power Plant (CHP)is technically favourable, as it works with DM content higher than 20% and provides electricity. The objective of the „FeBio“project (running time are 4 years, from 2020 – 2023 and funded by the German Ministry for Economic Affairs and Energy (BMWi) within the 7th Energy Research Programme) is the development of a small-scale dry AD plant for solid and stackable residues with low investment costs of 4,000 - 6,000 €/kWel and electricity generation costs of lower than 18 €-Cents/kWhel.
The Circular Economy Shift for Business Models: Creating value from waste in the Peach Canning industry
Authors: Paraskevopoulou Christina , Vlachos Dimitrios
Published: November 2022

With the Circular Economy (CE) concept emerging, the reorganization of the supply chain (SC) and the reengineering of its processes is highlighted. In Greece, industrialized agriculture and more specifically the peach canning industry can be an important factor for the economy within and outside the country’s borders, with the total yearly exports worth at around 400 million euros. However, an important source of waste is not utilized in the optimal way; the kernel is often mistaken as a useless by-product or at best as biomass. This paper focuses on the optimization of this supply chain achieved through CE applications, by separating the seed from the kernel’s wooden exterior and utilizing it to create new products that will provide added value for the SC, while the wooden exterior serves as biomass feedstock. The resulting products studied include (i) the peach oil which can be consumed as is or in cosmetics and (ii) natural medicine. The above mentioned are investigated and valued, in order to shift the peach canning industry’s business model, thus reinventing the sector. Finally, the new optimized SC framework is presented under the prism of CE, which can be applied for other processed stone fruits.
Sampling Strategies of Microplastic in Stormwater Runoff from Separate Drainage Systems
Authors: Abusafia Attaallah , Scheid Christian , Meurer Maren , Altmann Korinna , Braun Ulrike , Bannick Claus-Gerhard , Dittmer Ulrich , Steinmetz Heidrun
Published: November 2022

The occurrence of microplastic in terrestrial and water environments can be traced back to anthropogenic activities. Urban drainage systems play a role in transporting microplastic from urban sources into receiving waters or soils. The analysis (including sampling, sample preparation and detection) of microplastic are very complex and time-intensive, and sampling alone is the main contributor to uncertainty in the process. However, the lack of representative and comparable sampling strategies complicates the efforts to quantify emitted loads and to identify sources and pathways. Therefore, strategies for sampling microplastic in different wastewater compartments were developed and tested. The ongoing phase, however, focuses on sampling stormwater runoff in separate sewer systems. A new autonomous sampling concept for stormwater was designed and implemented to capture large sample volumes. The sample volume plays an important role with respect to the representativeness. Samples are then prepared, both in situ and in laboratory to produce five size fractions (1000, 500, 100, 50, 5 μm). Preliminary results show that urban drainage systems transport different loads of at least four microplastic types; namely polyethylene (PE), styrene-butadiene rubber (SBR)1, polypropylene (PP) and polystyrene (PS). High PE concentrations are detected in all stormwater samples, followed by SBR, a main tire wear constituent. SBR loads showed dependency to the number of dry-weather days prior to sampled rain events.
Assessing the role of Posidonia banquettes in coastline protection against erosion, through UAV technology and granulometric analysis: Preliminary results from the case of Schinias-Marathon National Park, Attica, Greece.
Authors: Vandarakis Dimitrios , Salomidi Maria , Gerakaris Vassilis , Issaris Yannis , Kourliaftis Ioannis , Agaoglou Chara , Kapsimalis Vassilis , Panagiotopoulos Ioannis
Published: November 2022

Coastal environments and in particular beaches are valuable natural assets, offering a wide array of ecosystem services and economic benefits. In this study UAV technology with RTK-GPS is used in order to map in detail, the beach morphological characteristics, aiming to the impact of the presence of Posidonia οceanica beach-cast deposits. The principal aim of this research is to evaluate the relation between the banquettes and the sediments, as well as the banquette's significance concerning the beach protection. Particularly, the distinctive goals are: a) to identify the differences in volume, shape and area covered by the banquettes, and b) to analyze the relationship between banquette deposition and the changes of the sedimentary budget. The presence of the fine-grained sediments and the calculation of the sediment budget enclosed in the total volume of the banquette (692.57±8.3m3 (Mission 2)) will re-evaluate their role concerning the coastline protection.
Circular Economy and Green Economy: a network analysis
Authors: Sulich Adam , Ferasso Marcos , Sołoducho-Pelc Letycja
Published: November 2022

Circular Economy and Green Economy are very popular concepts in modern scientific business management literature. Several papers already addressed both concepts as synonymous while others distinguish them differently. Based on this conceptual gap, this paper aims to shed a light on these topics by mapping how scientific literature is linking these two terms. The used method is the network analysis and reports with key findings from indexed papers. Finally, a research agenda and future research topics to be further explored are proposed.
Implementation of hydroseeding methods as bioengineering techniques for soil stabilization and reclamation projects
Authors: Kolkos George , Stergiadou Anastasia
Published: November 2022

The protection of soil from erosion is an essential element for projects where we have to deal with steep slopes terrains. Those could be construction of roads, quarry and open-pit mines. The soil stabilization occurs with the implementation of technical works such as the installation of synthetic and metallic textiles or with bioengineering methods. The mine closure and the rehabilitation of mine sites and waste dumps are popular projects under sustainable policies. A bioengineering stabilization method is hydroseeding which can be used for mine rehabilitation. Hydroseeding is considered one of the most appropriate methods for fast installation of vegetation. It is used for planting seeds of grass species, even shrubs and trees. This paper aims to highlight the advantages of hydroseeding as a sustainable bioengineering method for soil stabilization. The contributing factors for successful installation of hydroseeding were examined and analyzed. Those are time the: time and climatic conditions, different methods, selection and quality of the materials and the selection of the proper mix of species which are used. A review of applied projects in Greece is taking place with focusing in the growth of the plants and the results of this method compared with others.
Valorisation of polyolefins into magnetic carbon nanotubes: application as catalysts in wet peroxide oxidation of paracetamol
Authors: dos Santos Silva Adriano , Sanches Lucas , Fontana Roman Fernanda , Diaz de Tuesta Triviño Jose , Alves da Silva Fernando , Gomes Helder
Published: November 2022

This work deals with the application of magnetic carbon nanotubes (MCNTs) in the catalytic wet peroxide oxidation (CWPO) of paracetamol (PCM), a pharmaceutical compound selected as model contaminant of emerging concern (CEC). MCNTs were synthetized by catalytic chemical vapor deposition (CCVD) at 850 ºC, considering low-density polyethylene (LDPE), high-density polyethylene (HDPE), and polypropylene (PP) as carbon precursors representative of urban plastic solid waste. Magnetite supported in alumina (Fe3O4@Al2O3) nanoparticles previously synthesized by sol-gel were used as catalysts in the CCVD process. The synthesized MCNTs were tested in the CWPO of PCM at 80 ºC, monitoring during 24 h the concentration of H2O2, PCM, Total Organic Carbon (TOC) and aromatic compounds. All MCNT catalysts show activity allowing to decompose completely the pharmaceutical in aqueous solutions after 360 min. In particular, the MCNTs synthesized from HDPE lead to complete removal of the pollutant after 30 min of reaction. By TOC analysis, it was observed that the CNTs led to obtain mineralization degrees higher than 38% of the pollutant after 24 h. Aromaticity test indicated that the catalyst prepared from HDPE promotes more degradation of the intermediates than the catalyst prepared from LDPE and PP.
Phytoextraction of cadmium contaminated soils by ornamental plant: growth response, tolerance index and accumulation
Authors: Gul Iram , Manzoor Maria , Zaheer Muhammad , Ahmad Imran , Shah Ghulam , Kallerhoff Jean , Arshad Muhammad
Published: November 2022

Cadmium (Cd) contaminated soil is a global concern and restoration of contaminated soil is challenging due to its persistence and non-biodegradability. In this study the phytoextraction capability of ornamental plant (Pelargonium zonale) for remediating Cd contaminated soil was assessed. For this purpose, culture experiment was carried out, soil was spiked with various levels of Cd (0 – 150 mg kg-1). After 1 month of spiking, pots were filled with spiked and control soils, 15 days old healthy seedlings of P. zonale were transplanted in all pots and grown for 2 months under greenhouse conditions, harvested and analyzed for different parameters such as Cd concentration in shoots/roots, tolerance index (Ti), Cd uptake, translocation factor (TF) and bioconcentration factor (BCF). The results showed that P. zonale survived at highest Cd levels and Ti was more than 60%. Furthermore, the TF and BCF was more than 1 and Cd accumulation in the shoots was more than 100 mg kg-1. This study showed that P. zonale has great capability for restoring Cd contaminated soils.
Introducing UWAB 2.0. and exploring next steps for agent based modelling in domestic water demand.
Authors: Koutiva Ifigeneia , Eftaxias Konstantinos , Makropoulos Christos
Published: November 2022

Domestic water consumption projections are needed to manage the urban water supply system in different spatiotemporal resolutions depending on the type of the supported decision. For instance, operational decisions require predictions of fine resolution (hourly or lower), while tactical and strategic decisions are satisfied with predictions of coarser resolutions (monthly or even annual). This work explores the development of the new version of the Urban Water Agents’ Behaviour (UWAB) model, the UWAB 2.0. and its structural changes. These changes are expected to enable the linking of UWAB with machine learning techniques to enhance its projection capacity to support tactical and strategic decisions. UWAB is an agent based modelling tool, which simulates the water demand behaviour of urban households incorporating the effects of climate, water demand management policies and social network to water saving behaviour. This work will present the results of the structural changes of UWAB and the way forward for its development and pilot testing.
Life-Cycle-Oriented Framework for Seaport Infrastructure Maintenance and Climate Change Adaptation
Authors: Tsaimou C. , Chalastani V. , Tsoukala V.
Published: November 2022

Life-cycle considerations are a prerequisite for rational seaport engineering design and planning since they actually retain seaports’ resilience and operational effectiveness. However, the current climate crisis poses threats to the resilience of existing seaport infrastructure, leading to functional degradation and structural failures. Life-cycle-oriented approaches have been proposed to tackle these issues since they constitute an important element for seaport rehabilitation schemes. This paper uses the case study of Evdilos Port in Ikaria Island, Greece to investigate alternative configuration scenarios for the seaport windward breakwater, damaged during a severe storm event in 2018. Multi-criteria decision aid (MCDA) analysis was performed for the examined configurations to select the optimal solution regarding the rehabilitation of the damaged section. The present research seeks to enhance seaport sustainability, particularly while implementing maintenance and rehabilitation practices via the incorporation of life-cycle-oriented design approaches.
Effect of the dependence structure and time irreversibility of streamflow in flood inundation mapping with focus on the long-term persistence behaviour
Authors: Dimitriadis Panayiotis , Iliopoulou Theano , Papanicolaou Panos , Koutsoyiannis Demetris
Published: November 2022

The marginal structure of streamflow, with focus on the right tail behaviour, is considered as the main factor in flood risk assessment, while little is known on the effect of the temporal dependence structure and irreversibility of streamflow. Interestingly, the second-order dependence behaviour of streamflow is shown to highly deviate from a white noise behaviour (i.e., temporal independence), and to rather exhibit a Hurst-Kolmogorov (HK) behaviour, with strong autocorrelation and irreversibility at small scales and long-term persistence at large scales. The HK dynamics is known to be characterized by large uncertainty and variability, and therefore, it is expected to have a non-negligible impact on flood inundation mapping, especially in cases of successive storm events. Through benchmark experiments and real case scenarios, we investigate the influence of these effects in several output features of flood risk modelling such as flood depth, velocity, and duration, and we discuss possible consequences for insurance policies.
The potential of UAV multispectral imagery to estimate chlorophyll content of vine leaves
Authors: Tepanosyan Garegin , Muradyan Vahagn , Hovsepyan Azatuhi , Ayvazyan Grigor , Avetisyan Rima , Asmaryan Shushanik
Published: November 2022

As is known, chlorophyll is an important biophysical parameter used to monitor the overall physiological status of plants. The aim of this research was to study the potential of UAV multispectral images for estimating the contents of leaf chlorophyll in vineyards. For this purpose, a UAV flight was conducted (eBee SQ with Parrot Sequoia multispectral camera) and simultaneously in-situ measurements of leaf chlorophyll content of vine were performed using MC-100 Chlorophyll Meter. A total of 51 samples were collected: each sample representing the average of 5 measurements from the top of a single plant. Pearson correlation analysis was applied to test the relationships between spectral reflectance, Normalized Difference Vegetation Index (NDVI), Normalized Difference RedEdge Index (NDRE) and in-situ measured leaf chlorophyll content. A Partial Least Squares Regression (PLSR) model was also applied to predict chlorophyll content using 6 predictor variables: NDVI, NDRE and green, red, red edge, near infrared bands. The results showed that among spectral reflectance, the red band was most sensitive to chlorophyll variations (r = -0.46). Positive correlation between chlorophyll content and NDVI/NDRE also was found (r = 0.67 and r = 0.57, respectively). Promising results were obtained for the PLSR model (R2Val = 0.49, RMSEVal = 43.68), which proves the high potential of multispectral UAV imagery for chlorophyll monitoring in vineyards.
Sustainable water management in industry using Industrial Water Footprint
Authors: Nydrioti Ioanna , Grigoropoulou Helen
Published: November 2022

Large quantities of water are consumed directly or indirectly by production and distribution plants. Industries are rapidly required to comply with the principles of sustainable development through United Nations Sustainable Development Goals (UN SDGs), focusing on sustainable water management, such as SDG 6 (clean water and sanitation), 12 (responsible consumption and production), 13 (climate action) and 14 (life below water) Industrial Water Footprint (IWF) is an important tool for estimating and analyzing water consumption, thus enabling the industry to move to a more sustainable direction. Operational WF focuses on the WF resulting from industrial processes i.e. manufacturing & packaging while supply chain WF represents the WF of the raw materials and products used in the production.
The aim of this paper is to present and compare the operational and supply chain WF of different industrial branches, showcasing its applicability as an environmental pressure indicator. Selected industrial branches, worldwide and also in Greece, where significant water quantities are needed for production will be analyzed, given that water consumption is not only an economic parameter but also a tool to determine process performance within the branch.
Through WF assessment, increased water consumption spots and water recycling potential can be identified, resulting to process or management alternatives, with significant economic and environmental impacts on the production and/or consumer behavior.
Silver decorated TiO2/g-C3N4 nanocomposites for photocatalytic elimination of water pollutants under UV and artificial solar light
Authors: Falaras Polycarpos , Ibrahim Islam , Belessiotis George , Kaltzoglou Andreas , Katsaros Fotios , Salama Tarek
Published: November 2022

TiO2/g-C3N4/Ag nanocomposites were prepared and used as highly efficient photocatalysts. TiO2 nanoparticles were first prepared using a sol-gel process, and titania herostructures with varying amounts of graphitic carbon nitride (g-C3N4) were created using a hydrothermal technique. Following impregnation in a silver nitrate aqueous solution employing sodium citrate, the TiO2/g-C3N4 heterostructures were decorated with Ag nanoparticles. The prepared materials exhibit strong photocatalytic activity in both oxidation and reduction reactions. Under UV and artificial solar illumination, the degradation of four model contaminants, methylene blue (MB), rhodamine B (RhB), 4-nitrophenol (4-NP), and chromium(VI) (Cr+6), was examined. With degradation percentages of up to 95% for MB and 89% for RhB, an optimal condition was determined, resulting in the effective removal of dye contaminants under UV light. Fast degradation rates for these dyes were also observed under artificial solar light. In addition, the TiO2/g-C3N4/Ag nanocomposites were successful during photocatalytic reduction of 4-NP and Cr+6 contaminants in water, converting these hazardous compounds to a useful industrial precursor (aminophenol) and a less toxic substance (Cr+3), respectively.
Application of carbon-based catalysts derived from compost on catalytic wet peroxide oxidation of leachate waters from mechanical and biological treatment plant units for municipal solid waste
Authors: Roman Fernanda , Batista Gabriel , Diaz de Tuesta José , Mambrini Raquel , Gomes Helder
Published: November 2022

This work aims at the valorization of compost from mechanical and biological treatment (MBT) units of municipal solid waste by their transformation into carbon-based catalysts for further application in the treatment of MBT leachate waters (chemical oxygen demand (COD) = 60.0 g L-1, total organic carbon (TOC) = 26.7 g L-1, five-day biochemical oxygen demand (BOD5) = 23.3 g L-1 and aromaticity = 10.2 g L-1). The catalyst was prepared in this work by hydrothermal carbonization at 230 ºC from compost obtained in a MBT unit. The treatment of the leachate waters was conducted by combining a pre-treatment with a cationic ion exchange resin followed by catalytic wet peroxide oxidation (CWPO). The CWPO step was operated for 24 h using 7.2 g L-1 of catalyst, 85.7 g L-1 of H2O2 poured inside the reactor in 5 stepwise additions, at 80 ºC and pH = 3. The combined treatment by cationic resin and CWPO led to obtain removals of 68.2, 65.4, 96.8 and 93.1 % for COD, TOC, BOD5 and aromaticity, respectively, after 24 h of reaction. In conclusion, it was found that compost is a suitable precursor to produce active catalysts for the CWPO of leachate waters.
An innovative and eco-friendly approach to recover gold (and copper) from gold fingers of waste printed circuit boards
Authors: Soares Helena , Sousa Paulo , Martelo Liliana , Bastos Margarida , Marques António
Published: November 2022

Recycling waste printed circuit boards (WPCBs) is a complex problem worldwide and sustainable technologies are required. So, this work aims to offer an innovative (an European patent was submitted, EP 20216239.2 1) and more sustainable solution to recover high-value materials (gold and copper) from WPCBs.
The proposed process includes the following steps: (i) cutting the WPCBs´connecting terminals containing gold fingers using a mechanical tool (such as, a guillotine), (ii) swelling the cut WPCBs pieces (60 mm2) in an appropriate organic solvent inside a low-pressure reactor (with stirring and temperature control), (iii) recovering the gold fingers from a mixture of copper foils and fiberglass using a magnetic separation process followed by sieving.
Subsequently, gold and copper were purified from the gold fingers using microwave-assisted acid leaching with nitric acid to leach copper. This process allowed recovering gold, as a solid, with high yield (99.9 wt%) and a purity grade of 74.0 wt%. Finally, leached copper was recovered by alkaline precipitation (pH around 8.8), as a solid of copper hydroxide, with high yield (99.9 wt%) and a purity grade of 85.7 wt%.
The present method has the advantages to provide an innovative and smart solution that minimizes the generation of wastes (dusts and wastewaters), energy consumption and equipment´s.
Strategies for the improvement of VFAs recovery in the nanofiltration process within the circular economy framework
Authors: Naddeo V. , Pervez Md. Nahid , Uwineza Clarisse , Sapmaz Tugba , Mahboubi Amir , Hasan ‪Shadi , Cai Yingjie , Zarra Tiziano , Belgiorno Vincenzo , Taherzadeh ‪Mohammad J.
Published: November 2022

Over the past decades, the anaerobic digestion (AD) process has been employed as a potential medium to produce valuable resources from the waste-based feedstock. Moreover, the use of AD technology can generate not only resources, but it also creates an avenue for useful chemicals recovery to further use in commercial purpose, which is a part of the circular economy consortium. Volatile fatty acids (VFAs) are one of the most precious chemical feedstock that can be recovered from anaerobically digested effluent through the use of a pressure-driven membrane filtration process. In an effort to improve the recovery percentages of VFAs from anaerobically digested effluent, this study proposed a sustainable pathway by reusing the permeate effluent in the nanofiltration process. For this purpose, particles free feed solution was produced using the ultrafiltration process and sequentially subjected to the nanofiltration process in the presence of a 200-300 Da nanofiltration membrane. Each permeate was mixed with a known amount of fresh feed and continues up to 3 cycles to be improved the recovery percentages of total VFAs concentrations. Results indicated that recycling strategies could be a potential way to modulate the concentration of VFAs compounds.
Linear Bivariate Expressions for Marine Benthic Macrophytes Ecological Status Description
Authors: Tzouvaras Nikolaos
Published: November 2022

Regarding ecological status assessment with marine benthic macrophytic indicators as per European Water Framework Directive (WFD), linear models are being reviewed (either starting from discontinuous forms or modifying quadratic and algebraic forms). Through use of simple concepts, model flexibility is demonstrated in terms of application to different indicators and varying marine environments. Four variants of the Ecological Evaluation Index (EEI) approach yield similar results (same or adjacent ecological status classifications in 18 out of 20 points) for a Saronikos Gulf data set; they are further compared with variants of the Quality of Rocky Bottoms (CFR) approach over WFD-related aspects (ecological status classification, coverage, richness).
Nutrient Removal from Stormwater using Australian Native Plants in Constructed Floating Wetland
Authors: Nuruzzaman Md , Anwar A.H.M. Faisal , Sarukkalige Ranjan
Published: November 2022

Stormwater pollution causes excessive nutrient influx to rivers and lakes, which can trigger algal bloom and subsequent damages to the freshwater ecosystem. Constructed Floating Wetland (CFW), a cost-effective technology, uses aquatic plants in a hydroponic system to strip nutrients from stormwater through plant uptake. In this study, performance of two native Australian plants such as Eleocharis acuta (EA) and Baumea preissi (BP) in removing nutrients (NH3-N, NO3-N, and PO4-P) was investigated. Experiments were conducted outdoor in microcosm (20L) buckets, including an unplanted control bucket. About 65% and 96% of Total Inorganic Nitrogen (NH3-N + NO3-N) was removed in 14 days by EA and BP, respectively. Both plants could remove up to 40% of PO4-P in the same duration. A significant difference (p<0.05) between control and planted buckets was detected in ANOVA analysis. First-order kinetic rates (k) for both plants revealed that BP (k=0.341, 0.099 and 0.044 per day) has higher kinetic rates than EA (0.174, 0.021 and 0.039 per day) for all nutrients (NH3-N, NO3-N and PO4-P), respectively. Elevated level of Dissolved Oxygen (DO) was observed in EA planted bucket, raising interest for further research. This study proved the suitability of CFW system to treat stormwater using Australian native plants.
Study on the fate of the chemical uncoupler 3,3′,4′,5-tetrachlorosalicylanilide (TCSA) in activated sludge process and investigation of its effects to different aquatic organisms
Authors: Gatidou Georgia , Hatzopoulos Pasxalis , Chhetri Ravi Kumar , Kokkoli Argyro , Giannakopoulos Andreas , Arvaniti Olga , Andersen Henrik Rasmus , Stasinakis Athanasios
Published: November 2022

This study examines the biodegradation of 3,3′,4′,5-tetrachlorosalicylanilide (TSCA) by activated sludge and investigates its effects to different aquatic organisms. According to the experimental results, the fate of the target compound in activated sludge systems is governed by the mechanisms of sorption and biodegradation, while almost 90% of TCSA is expected to be removed in an aerobic activated sludge system operating with hydraulic residence time of 10 h. Ecotoxicity experiments shown that TSCA toxicity decreased from Daphnia > Vibrio > Lemna, while an ecological threat is possible in rivers where treated wastewater is diluted up to 100-fold.