bluuebunny/crossref_metadata_2025 huggingface dataset:
Assessing Climate Change Impacts in the Tana Basin, Ethiopia
Authors: Bagtzoglou Amvrossios , Khadim Fahad , Dokou Zoi , Lazin Rehenuma , Anagnostou Emmanouil
Published: August 2023

Climate change effects on long-term groundwater (GW) resource developments in the Tana Basin, Ethiopia, are a growing concern. To address this we deployed a fine-resolution (500 m) GW model using MODFLOW-NWT for the Tana Basin, Upper the Blue Nile region. The GW model was calibrated based on 98 historical instantaneous well-level measurements (RMSE = 16.36 m, 1.6% of range), and 38 years of monthly lake level data (RMSE = 0.2 m, 6.7% of range). We used the model to simulate long-term climate change impacts by considering two representative concentration pathways, (RCPs) 4.5 and 8.5, from the two extreme global circulation models (MIROC5 for wetter conditions and CSIRO-Mk3 for drier conditions) available in the region. While the MIROC5 simulated GW table (GWT) was found to be stable, the CSIRO-Mk3 simulated GWT exhibited large fluctuations within +2 m to −4 m by 2100 due to climate change. More critical impacts were predicted for the lake, where total lake releases from the baseline scenario were foreseen to be changed by +50% (MIROC5) or −22% (CSIRO-Mk3) by the end of 2100.
Unveiling the transformation of dissolved organic matter in drinking water treatments based on FT-ICR-MS and spectral analysis
Authors: Hang Xu , Yueting Wang , Tianpei Mo
Published: August 2023

The use of fourier transform ion cyclotron resonance mass spectrometer (FT-ICR MS) and fluorescence excitation-emission matrix (EEM) systematically provide more comprehensive information on the changes in dissolved organic matter (DOM) composition and characteristic in water treatments. Therefore, this study aims to provide information on the molecular and spectroscopic characteristics of DOM in a full-scale drinking water treatment plant (DWTP) and summarize the effects of different treatment processes on DOM. This study sheds light on the molecular transformation of DOM in conventional treatments and advanced treatments.
Sustainable and Cost-effective Approach for Treatment of Plating Industrial Wastewater Effluents
Authors: Boguniewicz-Zablocka Joanna , Corpuz Mary Vermi Aizza , Naddeo Vincenzo
Published: August 2023

The wastewater resulting from the plating industry contains high contents of toxic metals, such as chromium, which is a serious threat to the environment due to its cumulative effects and non-degradability. Several methods have been actively investigated to remove heavy metal ions from aqueous matrices. This research aimed to study the effects of coagulation and filtration on the degree of removal of main toxic metals from the plating industry wastewater. It has been shown that the rate of toxic pollutants removal was significantly influenced by different types of coagulants used in the pre-treatment. The degree of selected metals reduction strongly depended on the pH. However, the removals did not change linearly with the coagulant dosage. The most efficient method was chosen for process conditions in which more than 80% metal reduction was achieved and the final concentrations of copper, chromium, and nickel in the treated wastewater were within the required limits. The use of combined technological solutions made it possible to remove heavy metal ions from wastewater in a sustainable way, allowing to take further work related to metals recovery.
Application of a Bioclimatic Index for Evaluating the Attractiveness of Two Highly Touristic Beaches in Santorini and Kos
Authors: Chatzipavlis ANTONIS , Monioudi ISAVELA , Velegrakis ADONIS , Chalazas Theodoros , Chatzistratis Dimitrios
Published: August 2023

Beaches have a high hedonic value and economic potential; they are pillars of tourism which has been increasingly associated with vacationing wholly, or partially, at coastal locations and beach recreational activities according to the 3S (Sun, Sea and Sand) touristic model. The visitor’s satisfaction and the attractiveness of a beach depends on several climatic factors such as temperature (i.e., thermal sensation index - PET), wind, cloudiness and rain. Future changes in the climatic conditions under Climate Change, such as temperature increases (and corresponding thermal discomfort) can affect the attractiveness of the beaches. A specialized bio-climatic index (the Climate Index for Tourism – CIT) was used in this contribution in order to assess the ideal climate conditions for a tourist to visit the beach and to evaluate the present and future attractiveness of the island 3S destinations of Kos and Santorini, as a touristic product.
Photocatalytic Treatment of Hospital Secondary Wastewater in a Pilot Scale for the Removal of Residual Pharmaceuticals
Authors: Konstantinou Ioannis , Boti Vasiliki , Hela Dimitra , Albanis Triantafyllos
Published: August 2023

The present study deals with the application of heterogeneous photocatalysis in pilot compound parabolic solar (CPC) reactor for the advanced treatment of hospital secondary wastewater effluent treatment using TiO2 and g-C3N4 catalysts. Degradation followed first order kinetics with the corresponding rates ranging from 0.018 and 0.013 LkJ-1 for citalopram and O-des-Venlafaxine to 0.039 and 0.044 LkJ-1 for venlafaxine and amisulpride, respectively. The treatment was followed also by EEM-fluorescence as well as toxicity (Microtox) and risk assessment.
Enhanced hydrogen production rates in Microbial Electrolysis Cell using Biocatalyst
Authors: Gautam Rahul , Ghosh Uttam Kumar
Published: August 2023

The energy consumption around the world has increased significantly and depleting reserves posing a major concern. The green energy sources are the need of the hour to counter the fuel scarcity and souring prices. Hydrogen production through a microbial electrolysis cell (MEC) is an effective and green technology. It is a bio-electrochemical system where microbial oxidation of organic feed at anode and reduction of protons to Hydrogen at cathode takes place. To derive hydrogen evolution reaction (HER) over the cathode, an external applied voltage of 0.2V is required which is very nominal in comparison to the voltage required for water electrolysis.
In the present study, the reactor digestate derived biochar biocatalyst was evaluated for its impact in the process parameter enhancements. The bio-catalyzed membrane-less single chambered MEC (BC-SC-MEC) in a batch mode at an applied voltage of 0.8 V had resulted into higher COD removal efficiency and hydrogen production rates at 30 ± 2 °C (Fig.1). The COD removal of 78%, with Coulombic efficiency of 60% and cathodic hydrogen recovery of 52 % were reported in BC-SC-MEC, while SC-MEC resulted into COD removal of 72%, coulombic efficiency of 55% and cathodic hydrogen recovery of 48% were reported. These results support the claim of boosted hydrogen production in the bio-catalyzed MEC for enhanced energy recovery.
Anthropogenic metal pollution in Saronikos gulf: historical evolution and risk assessment based on selected sediment cores
Authors: Paraskevopoulou V. , Panagopoulou G. , Yfanti A. , Anagnostou E. , Vrettou E. , Filippi G. , Botsou F. , Xarlis P. , Andreopoulos N. , Moratis D. , Stergiou N. , Chatziathanasiou C.C. , Damianou R.K. , Dalianis A. , Tsiparis I. , Dassenakis M.
Published: August 2023

Anthropogenic metals (Cd, Cu, Hg, Pb, Zn) are chemical elements known for toxic effects when present in elevated concentrations. There are various sources of these metals to marine sediments. The presence and levels of anthropogenic metals in sediments may cause adverse implications to ecosystem and human health. The present paper is a preliminary presentation of anthropogenic metal levels in selected short sediment cores obtained during a 2017 sampling campaign in the various sub-areas of Saronikos (Elefis bay, Eastern, Western and Outer). The vertical distribution of Cd, Cu, Hg, Pb and Zn along with sediment quality evaluation are discussed. In the background sediment layers (below 15-20cm) the ranges of Cu, Pb, Zn, Hg and Cd (in mg/kg) are 9.3-37.3, 18.8-35.1, 16.8-85.3, 0.019-0.033 and 0.041-0.090 respectively. In upper sediment layers affected by anthropogenic pollution the ranges of Cu, Pb, Zn, Hg and Cd (in mg/kg) are 13.7-138, 33.9-181, 35-435, 0.031-1.73 and 0.051-0.65. The metal contents in the sediments of Saronikos generally do not exceed the ERL (effects range low) and ERM (effects range median) sediment quality guidelines widely used as risk indicators to benthic biota. However, most metals in Elefsis bay and Hg in Elefsis and other locations of Saronikos as well, present elevated concentrations above the quality limits posing risk to marine biota and possibly to human health.
Exploring the consumers’ behaviour towards storing, repairing and second-hand purchasing of mobile phones in Greece.
Authors: Boikou Konstantina , Chroni Christina , Sigala Evangelia , Abeliotis Konstantinos , Lasaridi Katia
Published: August 2023

The proliferation of waste electrical and electronic equipment (WEEE) poses a significant environmental challenge, driven by technological advancements and reduced production costs. In particular, mobile phones have gained tremendous popularity worldwide, but their short lifespan has significantly contributed to the exacerbated electronic waste crisis. In this paper, a study on the behavior of Greek consumers towards storage, replacing, repairing and second-hand purchasing of mobile phones is presented.
Coastal flood and erosion risk under climate change: An overview of policies and legislation in Greece and Cyprus
Authors: Velegrakis Adonis , Papadatou Konstantina , Hasiotis Thomas , Monioudi Isavela , Hadjimitsis Diofantos , Kontopyrakis Kyriakos
Published: August 2023

This short contribution provides a brief overview of the most relevant policies and legislation for the prevention and management of the coastal flood risk under climate change in Greece and Cyprus, following the ‘hierarchy of norms’: the most relevant International policy and legals instruments to which Greece and Cyprus, are Contracting Parties (CPs) are considered first, followed by the EU and National policies and legislation. Their review has shown that there are several challenges in the existing regulatory regimes, with the most important of which associated with the lack of consideration of the effect of coastline change (retreat/erosion) under climate change on the shoreline and beach legal demarcations.
Photocatalytic Degradation Of Aldrin Under The Influence Via Ozonation In The Presence Of Ag2o/Smfeo3 Under Visible Light
Authors: Maddila Suresh , Immandhi Anantha , Jonnalagadda Sreekantha
Published: August 2023

The photocatalytic degradation of aldrin, a hugely toxic and commonly used pesticide was studied using Ag doped SmFeO3 as a heterogenous catalyst under ozonation reaction. Various photocatalytic nano particles were prepared with varied dopant percentage (1%, 2.5% and 5%) which were characterised using various analytical and morphological techniques. A magnificent degradation of aldrin up to 99.9% was achieved using 50 mg/L of 5% Ag2O/SmFeO3. It was observed that the degradation was highly efficient at a basic pH of 11 leading to mineralisation of any intermediates produced in the process within 2 h. The extent of degradation was monitored by GC-MS and TLC. Overall mineralisation was tracked using TOC value. The catalyst was easily separated from the reaction mixture using simple ultra filtration method. The separated catalyst was again washed and dried to be used for the next 7 cycles. This method has a promising scope with the development of such perovskite heterogenous photo catalyst for almost complete degradation of the hazardous chemicals released into water bodies such as aldrin.
Coastal flood and erosion risk under climate change: An overview of policies and legislation in Greece and Cyprus
Authors: Velegrakis Adonis , Monioudi Isavela , Vousdoukas Michalis , Tzoraki Ourania , Hasiotis Thomas
Published: August 2023

This short contribution provides a brief overview of the most relevant policies and legislation for the prevention and management of the coastal flood risk under climate change in Greece and Cyprus, following the ‘hierarchy of norms’: the most relevant International policy and legals instruments to which Greece and Cyprus, are Contracting Parties (CPs) are considered first, followed by the EU and National policies and legislation. Their review has shown that there are several challenges in the existing regulatory regimes, with the most important of which associated with the lack of consideration of the effect of coastline change (retreat/erosion) under climate change on the shoreline and beach legal demarcations.
Paradigm Shift Towards Integrated Sustainability and High Performance Machining
Authors: Attia M.
Published: August 2023

The environmental impact of machining is presented in terms of the damage to human health, ecosystem quality, and resources. To reconcile the conflicting requirements of economic growth and environmental protection, a paradigm shift towards integrated sustainability and high performance machining is discussed in the light of the new industrial revolution I5.0. Implementation of the sustainability strategy showed that the use of innovative and eco-friendly cooling/ lubrication methods in machining can significantly reduce the environmental impact and improve productivity, part quality, and process economics at the same time. Implementation of the resilience strategy, through a cyber-physical adaptive control system, showed up to 50% and 35% of combined reduction in the production cycle time and cost, respectively, as well as extending the tool life and eliminating the part damage.
Effect of plant species on the performance of vegetated buffer strips to treat agricultural runoffs
Authors: Markoulatou Evrydiki , Fountoulakis Michalis
Published: August 2023

Vegetated buffer strips (VBS), have been recognized as the most common management practice for mitigating pollution caused by agricultural runoff. They serve a transitional zone between agricultural fields and receiving waters. In this study, two VBS planted with aromatic plants and one unvegetated BS, were examined for the treatment performance of simulated agricultural runoff, under real weather conditions. Specifically, Lavandula dentata and Myrtus communis were the plant species that were established in the two systems. The effluents of examined VBS were analyzed for COD, pH, turbidity, ammonium, nitrate and phosphate concentrations. The results show that VBS can reduce nutrient concentrations compared to the influent agricultural runoff, although not all parameters showed the same level of reduction compared to the unvegetated buffer strip. The L. dentata system showed higher nitrate concentrations than the unvegetated system. Finally, both of the plant systems effectively reduced phosphate concentrations with lower values than the unvegetated system.
Towards sustainable plastics recycling: assessing the integrity status of polypropylene (PP) debris to recycle marine-degraded materials
Authors: Lourmpas Nikitas , Kyriakakis Emmanouil , Efthimiadou Eleni , Papanikos Paraskevas , Lekkas Dimitrios , Alexopoulos Nikolaos
Published: August 2023

Polypropylene (PP) is a widely used polymer with significant environmental implications when improperly disposed. Effective recycling strategies for PP are crucial for mitigating plastic pollution and achieving sustainability goals. This investigation focuses on classifying PP debris based on their integrity status using, microscopy, Fourier Transform Infrared (FTIR) spectroscopy, and tensile testing. The debris are classified based on the above analyses in three different groups, based on the induced damage due to environmental exposure. In the present work, the classified PP debris samples are then blended with virgin PP to produce recycled specimens, aiming to enhance their properties and their overall quality. The recycled specimens undergo further evaluation through the same mechanical, chemical and morphological analysis. This assessment helps identify the integrity status group(s) with desirable properties and determines the optimal percentage of virgin PP incorporation. The research findings contribute to the development of sustainable and cost-effective recycled PP specimens, promoting circularity in PP plastics.
Impact of environmental disclosure on financial health of manufacturing firms
Authors: Marimuthu Ferina , Mgilane Nolwando , Maama Haruna
Published: August 2023

Environmental reporting can help firms stay in compliance with environmental regulations and manage environmental risks. By proactively addressing and disclosing their environmental impact, manufacturing firms can mitigate potential legal and regulatory penalties, fines, and reputation damage, thereby safeguarding their financial performance. In addition to the latter perspective, cost savings and operational efficiency, enhanced reputation and stakeholder engagement, as well as access to capital and investment opportunities, are critical factors to ensure that firms disclose information about their environmental performance, including its impact on the environment, sustainability initiatives, and environmental risks and opportunities to ensure that they maximise their financial performance. Hence, the aim of this study is to explore the relationship between environmental reporting and financial performance of South African listed manufacturing firms. A multiple regression analysis was adopted to achieve the aim by testing the relationship between the variables amongst a sample of 50 manufacturing firms listed on the Johannesburg Stock Exchange (JSE). A content analysis was utilized to attain environmental reporting information themes from the integrated annual reports retrieved from the JSE for the period 2016 to 2020. The results indicate a negative association between environmental reporting responsibility and financial performance, measured by return on equity (ROE) when the components of environmental reporting are tested individually. However, when these components namely: environmental reporting, social reporting and environmental degradation are combined the findings reveal a positive and statistically significant relationship. These results imply that the adoption of environmental reporting, specifically an increase on the quality of environmental reporting results in an increase in the manufacturing firm performance.
Composting Animal Mortalities: An effective method for Agro-Silvo-Pastoral Systems utilizing natural zeolite
Authors: KAVASILIS STAMATIS , DOULA MARIA , ZORPAS A. ANTONIS , CAMBANIS LEONIDAS
Published: August 2023

Animal mortalities management is a challenging and ecologically concerning issue in Agro-Silvo-Pastoral systems. Conventional methods used are not environmentally friendly, are likely to disperse disease to human and animals and do not promote the circularity of livestock units. The absence of national and European legal frameworks further compounds the problem, largely due to pathogen concerns. Composting animal mortalities as an innovative solution in Europe can address these challenges by safeguarding natural resources, reducing pollution, and enhancing soil organic carbon and nutrient recycling. This study proposes a composting methodology for managing animal mortalities and green wastes (prunings), offering significant benefits to Agro-Silvo-Pastoral systems. Two composts were prepared using sheep mortalities and green wastes (GWs). Clinoptilolite (natural zeolite) was added to one of the two composts to improve the properties of the final product. Comparing compost properties with EU standards for safe compost use as soil amendments indicates that the zeolite-compost can be freely utilized for plant growth, land rehabilitation, and carbon sequestration without any limitation. The research findings demonstrate advantages for Agro-Silvo-Pastoral systems, including improved mortalities management, enhanced soil properties, and increased soil organic matter content.
Plastic waste utilization: Challenges and opportunities for waste-to-energy in Baguio City, Philippines
Authors: Duran J. , Victoriano J.K. , Lunag Jr. M. , Diccion Jr. A. , Putiyon P. J. , Solijon J. M.
Published: August 2023

Amounts of residual wastes, such as plastics, paper, and textiles, in urban areas have drastically increased over the years, which hence requires sustainable waste management schemes. Refuse derived fuel (RDF) provides a solution in addressing minimizing waste disposal in landfills and providing energy, particularly in developing nations. In this study, waste-to-energy (WtE) potential from residual wastes in Baguio City was assessed. With an experimental value of 13.738 MJ/kg, it revealed a percentage error of 20.748% when compared with predicted values from an energy regression model. However, ANOVA results revealed that the energy, moisture, and ash content were all statistically comparable to reports across RDF-related studies.
Low molecular weight polymers in aquatic environments as pollutants of emerging concerns: recovery, quantification and microstructure
Authors: Giannattasio Alessia , Iuliano Veronica , Oliva Giuseppina , Giaquinto Domenico , Capacchione Carmine , Korshin Gregory , Barcelo Damia , Naddeo Vincenzo , Belgiorno Vincenzo , Buonerba Antonio , Grassi Alfonso
Published: August 2023

Microplastics and, more in general, synthetic polymer debrides of anthropic origin are accumulating in the environment, in particular in marine water and sediments, with risks associated for aquatic organisms and humans not well wholly understood. In this contribution it is reported a new method for the isolation of microplastics from surface seawater and the quantification by solution 1H nuclear magnetic resonance spectroscopy (1H NMR) with respect to a known concentration of an internal standard (mesitylene) dissolving the microplastics in 1,1,2,2-tetrachloroethane-d2 (TCE-d2). TCE-d2 is a high boiling solvent that allowed the analysis and quantification of poly(ethylene) (PE) and poly(dimethyl siloxane) (PDMS) MPs at 80 °C.
Technologies for the Removal of Microplastics from Wastewater: A Short Review
Authors: Corpuz Mary Vermi Aizza , Buonerba Antonio , Napodano Paolo , Hasan Shadi , Choo Kwang-Ho , Zarra Tiziano , Belgiorno Vincenzo , Naddeo Vincenzo
Published: August 2023

One of the major routes of microplastics (MPs) to the environment is through the wastewater treatment plants’ (WWTPs) discharge to water bodies. Due to their dimensions (< 5mm), MPs tend to be ingested by aquatic species, and eventually, may cause adverse impacts on the environment and to human health. This paper aims to compare different existing and potential technologies for the removal of MPs from wastewater, in terms of removal mechanisms, removal efficiencies, and the current scale of application. In addition, the effects of the presence and accumulation of microplastics in different wastewater treatment systems are reviewed. The MPs that accumulate in the wastewater sludge may also enter the environment through the disposal or reuse of biosolids. However, most of the recent reviews of the removal of MPs in wastewater focused on technologies for the removal from the liquid phase. This paper also seeks to review proposed technologies for the removal of microplastics from wastewater sludge. Finally, the challenges in the application of these strategies for removal are also highlighted in this brief review.
Removal of copper (II) from aqueous solution using biopolymer-based materials: Theoretical and statistical physics investigation for wastewater treatment
Authors: Yadav Yadav , ELBOUGHDIRI NOUREDDINE , FERKOUS HANA , ROUIBAH KARIMA , DELIM AMEL , BOUBLIA ABIR , ALGETHAMI JARI , ALQAHTANI MOHAMMED , JEON BYONG-HUN , BENGUERBA YACINE
Published: August 2023

Pollution from heavy metals is increasingly recognized as a major threat to Earth's ecosystem. Due to the potential economic and ecological consequences, there is an urgent need to develop waste management systems and strategies for disposing of copper ions (Cu2+) from the industrial sector. This research looked at the efficacy of adsorbents from the waste olive residue, namely raw olive waste powder (OWP) and sodium alginate biocomposite beads (OWPSA). Several factors, such as the medium's pH and the length of time in contact, were studied for their impact. Both pseudo-first-order (PFO) and pseudo-second-order (PSO) models have been used in kinetics research. When compared to the experimental data, the PSO model was more accurate. In addition, the adsorption process between the Cu2+ and the two adsorbents was analyzed using a state-of-the-art statistical physics model called a single-layer model (SLMRG). Research into thermodynamics has revealed that Cu2+ adsorption was spontaneous, endothermic, and resulted from physical molecule interactions. In the meanwhile, we do density functional theory (DFT), a conductor-like screening model for real solvents (COSMO-RS) investigation, and an atom in molecule (AIM) study to investigate the possible relationship between quantum computations and experimental results. This validates the congruence between molecular models and experimental findings.
Enabling sustainability and resilience in industries through the value chains’ circularity and digitalisation
Authors: Aryblia Maria , Sarantinoudis Nikolaos , Tsinarakis George , Arampatzis George
Published: August 2023

Living for the last decades in a linear world has emerged the necessity for resources reduction, reuse, and recycling, leaving behind the “take-make-waste” economic model and jumping over towards a cyclical ecologic system. Especially for the industrial environments, the efficient management of resources, the need for prevention and the circular designing and planning, have shown the path towards alternative approaches, new technologies and services, and cutting-edge solutions. Digitalisation technologies (Digital Twins, big data analysis, etc.), secondary raw materials, circular supply chains, integrated sustainability frameworks and standards, Digital Product Passports, are some of the solutions, services and tools that assemble to facilitate a green and digital transition, considering the circular economy aspects, and targeting to resiliency and sustainability. Under this scope, three industries focus on transforming their supply chains into circular, green and sustainable ones using advanced traceability approaches. The ordinary supply chains of a citrus juice company in Greece, the processes of managing Waste Electrical and Electronic Equipment (WEEE) for magnets and Carbon Fiber Reinforced Polymer (CFRP) for drones, are assessed using the Sustainability Balanced Scorecard, to empower the business opportunities, to enhance traceability and lead to sustained value chains.

KEYWORDS: industrial value chains, sustainability, resiliency, circularity, digitalisation
ACKNOWLEDGEMENTS
The research methodology, pilots’ activities and results presented in this article are part of the H2020 Plooto project, which has received funding from the European Union’s Horizon-2020 research and innovation program under grant agreement No. 101092008. The responsibility for the content of this publication lies with the authors. It does not necessarily reflect the opinion of the European Union. The European Commission is not responsible for any use that may be made of the information contained therein.
“AquaSPICE – Advancing Sustainability of Process Industries through Digital and Circular Water Use Innovations”
Authors: Arampatzis George
Published: August 2023

Either we rethink how we use water or we threaten the availability. Even though there is overall enough water to meet the world’s growing needs, it is necessary to make changes in how water is used, managed and shared. The EU-funded AquaSPICE project will increase awareness in resource efficiency. It will also deliver compact solutions for industrial applications, including water treatment and reuse technologies, and closed-loop recycling practices. The project will also develop a cyber-physical-system controller including a system for real-time monitoring, assessment and optimization of water use and reuse at different interconnected levels. The overall approach is based on the adaptation of technologies and practices – from a single industrial process to an entire industry.
A testvériség montázsa : Az „én” és a „mi” egyenértékűségének filmnyelvi megteremtése Abel Gance Napóleon (1927) és Dziga Vertov Ember a felvevőgéppel (1929) című filmjében
Authors: András Csaba
Published: August 2023

A tanulmány Abel Gance Napóleon (1927) és Dziga Vertov Ember a felvevőgéppel (1929) című filmjének egy-egy jelenetét hasonlítja össze. Központi állítása szerint a vizsgált részek egyaránt a testvériség koncepciójának filmes kifejezésére tett kísérletek. A dolgozat annak egy sajátos esetét tárja fel, hogy a film miképp járulhat hozzá a politikai szubjektum létrehozásához és megerősítéséhez; fő kérdése e folyamat formai vonatkozásaira irányul.
Integration of Personnel Services with Public Transportation Modes: A Case Study of Bogazici University
Authors:   Department of Civil Engineering, Bogazici University, İstanbul, Turkiye, Gokasar Ilgin , Karaman Ozan ,   Department of Civil Engineering, Bogazici University, İstanbul, Turkiye
Published: August 2023

Personnel service is a common application that is offered by employers to provide comfortable transportation for the employees. It is mostly applied in developing countries and even though it brings some convenience for both sides, it also has downsides. Especially, the extra cost of the system for institutions and additional congestion created during peak hours due to the wrong optimization of the service routes are huge problems that can be fixed by proper applications. Moreover, such an optimization would create huge benefits in general because of the extensiveness of the application. Besides some of the employees have complaints about the arrangement of the services which results in private car usage in the long term. The purpose of this study is to optimize the personnel service system in a systematic way and additionally, to combine the system with public transportation to be able to obtain a new approach. Therefore, the first method optimizes the routes whereas the second method gives a new suggestion for the system. The data of the study is obtained from the current personnel services of Boğaziçi University. During the process, the Geographic Information System (GIS) is utilized to investigate all possibilities. The study showed that both of the offered methods results better than the conventional approach by improving personnel welfare, congestion during peak hours and transportation habits.
An Integrated Fuzzy MCDM and Trend Analysis Approach for Financial Performance Evaluation of Energy Companies in Borsa Istanbul Sustainability Index
Authors:   Department of Industrial and System Engineering, Turkish Military Academy, National Defense University, Ankara, Turkiye, Dağıstanlı Hakan Ayhan
Published: August 2023

Financial performance evaluation is a great importance for companies. The aim of this study is to analyze the financial performances of energy companies traded in the Borsa Istanbul Sustainability Index in Turkey comparatively using trend analysis and multi-criteria decision making (MCDM). For this purpose, the changing values of accounting-based performance indicators over the years have been compiled from financial reports. The data were first evaluated by it was analyzed by Hesitant Fuzzy Technique for Order Preference by Similarity to Ideal Solution (HFTOPSIS). Then, it was analyzed by trend analysis for each variable separately. Comparative results show that MCDM rankings based on fuzzy set theory are different from analyzes performed alone. In addition, there is no study in the literature examining the financial performance of energy companies in Turkey based on the sustainability index.
Identifying the Right Policies for Increasing the Efficiency of the Renewable Energy Transition with a Novel Fuzzy Decision-Making Model
Authors:   IMU Vocational School, İstanbul Medipol University, İstanbul, Turkey, Dinçer Hasan , Yüksel Serhat ,   School of Business, Istanbul Medipol University, Istanbul, Turkey, Eti Serkan ,   Adnan Kassar School of Business, Lebanese American University, Beirut, Lebanon
Published: August 2023

Necessary improvements should be made to the determinants of renewable energy transition. However, it is necessary to give priority to the issues that are more important while making improvements to this process since all improvements cause cost increase. Therefore, a new analysis is needed in which the most important ones among these criteria will be determined. The purpose of this study is to identify the most essential items for renewable energy transition. Within this context, five criteria are selected based on the literature review results. Spherical fuzzy (TOPSIS-based DEMATEL) TOP-DEMATEL methodology is taken into consideration to calculate the weights of these indicators. In the second part of the study, alternatives are ranked with Spherical fuzzy ranking technique by geometric mean of similarity ratio to optimal solution (RATGOS). In this context, BRICS countries (Brazil, Russia, India, China, South Africa) are selected as alternatives. The main contribution is that a new method (RATGOS) is created while considering geometric mean in proportional concepts. On the other side, a new methodology (TOP-DEMATEL) is also proposed to overcome criticisms in DEMATEL. It is concluded that technological development plays the most important role for the success of renewable energy transition. Similarly, finding effective financial source is also very important in this condition. The ranking results also demonstrate that China and Russia are the most successful countries regarding renewable energy transition. However, it is also defined that South Africa and India are less successful in renewable energy transition in comparing with other BRICS countries. It is understood that technological development plays a critical role in increasing the efficiency of the renewable energy transition process. Thanks to the use of up-to-date technology, it is possible to use energy resources more efficiently. Technological developments are also necessary for the efficiency of energy storage processes. Variations in climatic conditions cause irregularities in the energy production process. Thanks to the efficient energy storage processes, it is possible to solve this problem.
Investigasi Kegagalan Poros Pompa Sentrifugal IP251-U153 pada Unit Recovery Boiler I PT. X
Authors: Masnur Dedy , Nawangsari Putri , Akbar Dea Musyafiroh
Published: August 2023

PT. X is one of the industries engaged in the pulp and paper sector which uses centrifugal pumps to move compounds such as liquor, water, and so on. Failure occurred in the operation of the centrifugal pump, namely the fracture of the shaft component which was made of AISI329 stainless steel. This study aims to investigate the failure of the IP251-U153 centrifugal pump shaft and provide recommendations for actions to prevent failure. The stages of analysis carried out were macroscopic analysis of the fracture surface and testing of chemical composition using a Spectral Metal Analyzer. The results of the analysis show that the fracture pattern is brittle intergranular fracture and there is a difference in the percentage chemical composition of the shaft material with the composition of the standard shaft material in the elements Molybdenum (Mo), Manganese (Mn) and Copper (Cu). These elements affect the durability of the shaft. Checking the material composition when accepting a purchase and carrying out a check for alignment on the shaft installation is necessary to avoid failure.
Rice Straw Management Practices in Rupandehi District, Nepal
Authors: Pandey Puspa , Adhikari Keshav Raj , Gairhe Janmajaya , Adhikari Bishnu Bilas , Shrestha Ram K. , Khanal Deepak
Published: August 2023

Rice straw management has been a serious issue after the increasing use of combine harvesters to harvest rice in southern plains of Nepal since these machines cut rice 15-20 cm above the ground and leaves huge amount of residues in the field. A face-to-face semi-structured questionnaire survey was carried out in 60 households of straw burning, and 60 households of straw incorporation to find out straw management practices adopted by farmers, their motive behind choosing those practices and timing of carrying out those practices. Farmers practicing those straw management practices for at least five years was considered as final respondent. Respondents were selected by using purposive sampling technique. Survey was carried out in six places of Rupandehi district where the problem of rice residue burning is severe mainly due to the use of combine harvesters in rice and wheat. Study resulted soil fertility enhancement as the primary reason behind both straw burning practice as well as straw incorporation practice adopted by farmers. Timing of rice straw burning was within 1 week of harvesting rice by majority of farmers.  Timing of soil incorporation of rice straw followed by majority of farmers was 8-12 days after harvesting rice. Straw burning results the nutrients imbalance and creates environmental pollution. So, soil incorporation of rice straw is suggested to return nutrients back to the soil.
Radiation Shielding Properties of Oxides (Al2O3, PbO and Fe2O3) based on Klein-Nishina Cross-section
Authors: Karki B. , Dhobi S. H. , Yadav K. , Nakarmi J. J.
Published: August 2023

In this study, we investigate the Klein-Nishina differential cross-section equation for total cross-section and extend it to calculate the total molecular cross-section for compounds Al2O3, PbO, and Fe2O3. Our findings reveal that the total molecular cross-section of these compounds is significantly larger, with values 5 times greater than the total atomic cross-section. Furthermore, we determine that the molecular cross-section of Al2O3, PbO, and Fe2O3 is 73, 132, and 118 times greater than the total electronic cross-section, respectively, while the atomic cross-section of these compounds is 15, 66, and 24 times greater. At low energy levels ranging from 1-5 MeV, the entire molecular, atomic, and electronic cross-section dominates due to Compton scattering. However, as the photon energy increases, Compton scattering becomes negligible, and a slight contribution from pair production scattering is observed. We also establish the adequate atomic numbers for Al2O3, PbO, and Fe2O3, which are determined to be 15, 66, and 24, respectively. These results highlight the significance of mass attenuation, cross-section, and adequate atomic number in the selection of radiation shielding materials for various protection purposes. The findings from this study provide valuable insights into the properties and behavior of these compounds, enabling informed decisions in radiation shielding applications.
Winter-time Hydraulic Jump over the Pokhara Valley, Nepal
Authors: Shrestha S. , Regmi R. P.
Published: August 2023

The Pokhara Valley is set to be one of the aviation hubs of Nepal with the opening of an international airport. The complex mid-hill mountainous topography of the Gangi-Himalaya and the characteristic wind system of the valley make safe aviation rather challenging over the valley. This study using the Weather Research and Forecasting modeling system shows that hydraulic jump-like phenomena occur regularly during winter in the western and central part of the Pokhara Valley during late afternoon/early evening when the airport may remain relatively busy. The jump occurs over the western part of the valley when the regional southwesterly plain to mountain wind via the Putalibazar Valley intrudes into the Valley crossing the Deurali-Mattikhan hill. The jump-like flow is accompanied by the formation of a mild reverse roller above the jump region and the head-on convergence with the northeasterly katabatic/drainage wind from Parche-Namarjung along the southeast–northwest oriented valley axis generating an updraft of as much as 0.4 to 0.8 m s-1. The southwesterly overrides northeasterly generating clockwise vertical rotors and high turbulence over the northeastern region of the valley. An early prediction of possible wind hazards at high spatiotemporal resolutions are highly desired to make aviation activities in the region safer for civil aviation.
Transverse Eponychial Flap For Nail Lengthening And Fingertip Reconstruction
Authors: Manadhar Krishna
Published: August 2023

Introduction: Fingertip injuries are frequented with loss of pulp and nail complex. Most reconstructive procedures provide either the soft tissue defect coverage or lengthen the nail.
Methods: Patients included were more than 10 years of age with fingertip injury of Allen type III and IV with intact eponychium. Transverse Eponychial Flap was used to lengthen the nail lost as well as provide defect coverage. Paired t test, chi square test and Pearson correlation and Mann Whitney test were used for statistical analysis.
Results: Seventeen digits were analyzed. The average lengthening of the nail achieved was 142.4%. The average nail length during follow up was 59.1% of contralateral, with average final nail lengthening achieved was 31%. Reconstruction with Transverse Eponychial flap alone was performed in 58.8% of digits. Four patients (23.52%) had complete near normal nail. Sixteen digits had satisfactory and higher results. With Transverse Eponychial Flap alone it was possible to completely cover 10 fingertips (58.8%), requiring local flaps or skin graft for the remaining cases. Obliquely orientated injuries (76.47%) were more likely to undergo the procedure.
Conclusion: The flap significantly lengthens the nail, and provides satisfactory results. We recommend the use of this flap in defects with Allen type III and IV fingertip injuries.
The Requirements for an Ecumenical Dialogue according to Pope John Paul II’s Encyclical Letter „Ut unum sint"
Authors: Dură Nicolae V.
Published: August 2023

In the Christian theological language, the term “ecumenism” was put in circulation by the Ecumenical Movement initiated by the Christians after the First World War. But, in the language of the Catholic Church, the term “ecumenism,” used with the meaning of the “ecumenical movement,” was introduced by the renowned theologian Yves Congar in 1937. And, then, it was taken over by the Second Vatican Council for the text of the decree on ecumenism Unitatis redintegratio. The Roman Catholic Church joined the Ecumenical Movement in 1961, when its delegates were presents at the Session — held in New Delhi — of the Ecumenical Council. Among other things, from the text of the Encyclical Ut unum sint published by Pope John Paul II in the year 1995, we could notice that His Holiness asserted that an ecumenical dialogue — that remains in fact one of the main instruments for the reestablishment of the ecumenical unity — has to fulfill the requirements stipulated by the Second Vatican Council, adopted however to the ecumenical realities of the present times.
Maciej Woźniczka: Idee czy ideologie? Znaczenie i wartość edukacji filozoficznej Częstochowa: Uniwersytet Humanistyczno-Przyrodniczy im. Jana Długosza, 2021, pp. 208.
Authors: Rembierz Marek
Published: August 2023

Here we get an authored work, in which the meaning and value of philosophical education is thoroughly and multifaceted analyzed. This is done not only by considering the world of "pure ideas", which is reached with special attention in philosophy, but also in the context of - sometimes acrimonious - ideological disputes and moving to the meta-level: disputes about the meaning and value of ideology in the teaching of philosophy. Moreover, the inquiries conducted affirm and confirm the importance and value of philosophical education, and even undertake an apologia for the importance and value of philosophical education, which ideologies would like to appropriate. Maciej Wozniczka's book "Ideas or Ideologies? The Meaning and Value of Philosophical Education" is a work of diligent and long-term philosophical reflection and at the same time a work of - passionate - commitment to philosophical education in its many forms.  In the monograph "Ideas or ideologies? The Meaning and Value of Philosophical Education" its author does not shy away from addressing issues that are the subject of current - ongoing - public debates, which directly or more often indirectly relate to the meaning and value of philosophical education. Maciej Wozniczka's book largely avoids falling into the "journalistic current", since the Author adopts as basic the philosophical perspective of rightly distanced reflection, although his ideological choices (preferences) call for discussion, lest - in spite of his will - they turn into the imposition of some ideology.
Sanitation Disparities between Rural and Urban Areas in India
Authors: Yadav Santosh Kumar
Published: August 2023

Sanitation is a fundamental human right and a critical aspect of public health and well-being. In India, a nation characterized by its diverse landscape and complex socio-economic structure, the disparities in sanitation facilities between rural and urban areas have significant implications for public health, social equity, environment, and overall development. This article delves into the stark contrast in sanitation infrastructure, practices, and the resulting consequences in rural and urban India. It also explores the factors contributing to these disparities and presents potential solutions to bridge the gap and ensure a healthier and more equitable future for all.
KAJIAN TEKNIS UNIT PEREMUK ANDESIT DI PT.HARMAK INDONESIA KECAMATAN KOKAP KABUPATEN KULON PROGO DAERAH ISTIMEWA YOGYAKARTA
Authors: Pratama Ferian Putra , Sukamto Untung , Titisariwati Indun
Published: August 2023

PT. Harmak Indonesia adalah salah satu perusahaan pertambangan yang memiliki unit peremuk andesit dengan menghasilkan ukuran butir tertentu.Unit peremuk tempat penelitian ini dilakukan terletak di Dusun Clapar III, Desa Hargowilis, Kecamatan Kokap, Kabupaten Kulon Progo, Daerah Istimewa Yogyakara. Penelitian ini dilakukan dengan tujuan mengkaji permasalahan secara teknis dari rangkaian unit peremuk andesit. Proses peremukan tahap petama (primary crushing) batu andesit menggunakan jaw crusher Shaorui SJ 600-900, untuk peremukan tahap kedua (secondary crushing) menggunakan jaw crusher Shaorui SJ 250-1200, dan untuk tahap peremukan ketiga (tertiary crushing) menggunakan cone crusher Shaorui SC – 110. Terdapat 3 fraksi produk akhir peremukan yaitu ukuran -20 +10 mm atau disebut produk split -10 +5 mm atau disebut produk chipping dan -5mm atau disebut produk abu batu. Hasil dari analisis menunjukkan tidak tercapainya persentase fraksi yang diinginkan dimana saat ini baru mencapai 24,7 ton/jam dan kurangnya fraksi -20 +10 mm atau produk split yang merupakan produk utama dari unit peremuk PT. Harmak Indonesia dengan target produksi yang diinginkan sebesar ≥70% sehingga dan diperlukan adanya peningkatan produksi guna mencapai target produksi perusahaan sebesar 55,5 ton/jam. Kajian produksi unit peremuk PT. Harmak Indonesia, membutuhkan analisis mengenai distribusi umpan dan produk tiap alat peremuk, efektifitas alat, efisiensi screen, reduction ratio dan waktu kerja efektif. Perbaikan yang dilakukan untuk memenuhi target produksi dari perusahaan yaitu adanya penambahan umpan yang sebelumnya 45,5ton/jam menjadi 55,5 ton/jam dan perubahan setting pada salah satu alat peremuk yaitu teritary cone crusher, dimana semulanya close setting yang digunakan adalah 20 mm dinaikan menjadi 25 mm. Dari adanya perbaikan tersebut maka akan terjadi perubahan pada reduction ratio dari alat tersebut terhadap produk yang dihasilkan. Hasil yang didapatkan dari alternatif perbaikan yang diberikan, yaitu target produksi meningkat menjadi 55,5 ton/jam dan presentase produk yang dihasilkan yaitu dari fraksi -20+10 mm atau disebut produk split mengalami kenaikan ≥70%, kemudian fraksi -10+5 mm atau produk chipping menjadi ≤15% dan fraksi -5 mm atau produk abu batu sebesar ≤15%. Hal ini tentunya sudah sesuai dengan yang diharapkan perusahan.