bluuebunny/crossref_metadata_2025 huggingface dataset:
The role of artificial intelligence in the implementation of the UN Sustainable Development Goal 11: Fostering sustainable cities and communities
Authors: Leal filho Walter , Mbah Marcellus Forh , Dinis Maria Alzira Pimenta , Trevisan Laís Viera , de Lange Deborah E. , Mishra Ashish , Rebelatto Bianca , Ben Hassen Tarek , Aina Yusuf A.
Published: November 2024

 

Addressing the global urgency for improved sustainable cities and communities, as per the United Nations Sustainable Development Goal (SDG) 11, requires innovative and disruptive approaches, which also include applying artificial intelligence (AI). While AI holds significant potential to address complex socio-economic and environmental challenges in cities, a comprehensive analysis of its applications and implications, particularly in urban contexts, is required to address the research gap in understanding how AI can be effectively deployed to meet the challenges. This paper reports on a study that evaluates how AI may facilitate achieving SDG 11. This assessment includes an expert-driven literature review, drawing insights from authoritative sources. In addition, a set of case studies illustrate practical applications of AI to improve urban sustainability. The combination of these approaches led to findings that underscore the pivotal role of AI in optimizing energy use, streamlining waste management, enhancing traffic flow, and contributing to environmental sustainability. However, according to the findings, AI implementation needs oversight to ensure it is ethical, inclusive, and privacyrespecting as an effective tool to aid decision-making. By fostering collaboration among planners, policymakers, and AI experts, the full potential of AI may be unlocked to shape sustainable urban environments and realize SDG 11.

 
UK-Canada Trade Post-Brexit: Leading with Circular Economy Trade
Authors: de Lange Deborah E. , Walsh Philip , Paul Sheeran
Published: November 2024

 

This research explores the viability of and considerations for circular economy international trade, a new international trade concept developed from an established circular economy concept. This work derives insights from literature to initiate a new branch of international trade, augmented by several trade experts' reviews to ensure the feasibility of the ideas. Academic and practical insights include advice for future trade agreements and suggestions for future international trade research, opening up a new field of circular economy trade. The original 2018 academic research was jointly commissioned by the UK and Canada to consider how to design a trade agreement between the two countries post-Brexit. As of April 1, 2021 and as predicted by our original 2018 work, an agreement, called the Canada-United Kingdom Trade Continuity Agreement (Canada-UK TCA), much like the Comprehensive Economic and Trade Agreement (CETA) between Canada and the European Union is in place to support UK-Canada trade. CETA incorporates some principles of sustainable development. Taking sustainable development aims further by explicitly embedding circular economy trade into the UK-Canada agreement would represent progression of international trade agreements and possibly support a worldwide "race to the top". According to expert opinion, our nations could engage in circular economy trade because our countries are aligned on internal circular economy policy. Moreover, although traditional views on international trade could remain as barriers, even the World Trade Organization subscribes to this new model. Overall, this research opens up paths for future research opportunities in international trade.

 
Power and Influence: The Embeddedness of Nations
Authors: de Lange Deborah E.
Published: November 2024

This book investigates whether and why social structure influences cooperative organizational strategic decision making in an international relations context.  It looks in particular at the United Nations General Assembly (UNGA).
Resisting the Resurgence of White Supremacy
Authors: Palmater Pamela
Published: November 2024

[para. 1]: " Of the many crisis-level issues facing world leaders today, none seems to have received the amount of attention as the purported problem of “others.” French President Emmanuel Macron delivered a speech to the G- 20 summit several months after his election in May 2017 that highlighted his speciﬁc concerns about Africa: “The challenge of Africa, it is totally different, it is much deeper, it is civilizational today” (Wildman 2017 ). Macron went on to explain that “when countries still have seven to eight children per woman – you can decide to spend billions of euros, you will not stabilize anything” (Wildman 2017 ). President Donald Trump, elected only a few months before Macron, also shared his concerns about Africa, speciﬁcally immigration from Haitian and African countries: “Why are we having all these people from shithole countries come here?” (Dawsey 2018 ). Trump, instead, prefers immigration from countries like Norway (Dawsey 2018 ). Trump’s solution for preventing the immigration of Mexicans, who he claimed were “bringing drugs. They’re bringing crime. They’re rapists” (Kopan 2016 ) is to build a giant wall on their shared border."
Pelaksanaan Pembelajaran Menggunakan Buku Teks Digital sebagai Sumber Belajar Siswa Kelas 8 pada Materi Persamaan Linear Satu Variabel
Authors: Ahzan Zulkaidah Nur , Jupri Al , Herman Tatang
Published: November 2024

Salah satu strategi dalam pembelajaran adalah pemberian sumber belajar, dalam hal ini buku teks digital, sebagai usaha untuk memperlancar interaksi antara tenaga pendidik dan peserta didik sehingga kegiatan pembelajaran menjadi lebih efektif dan efisien. Selain itu dapat juga dengan mengetahui bagaimana aktivitas guru yang dilakukan selama proses pembelajaran sehingga nantinya dapat menjadi bahan reflesi untuk pembelajaran berikutnya. Penelitian ini bertujuan untuk mengetahui bagaimana kondisi-kondisi tersebut telah terpenuhi pada pembelajaran matematika kelas VIII.5 MTsN 1 Jeneponto. Penelitian ini dilakukan dengan metode observasi dan juga wawancara. Berdasarkan hasil observasi terhadap kebermanfaatan buku teks digital dalam pembelajaran adalah sebesar 97,22% dan hasil observasi guru sebesar 86,62%. Oleh karena itu dapat dikatakan bahwa buku yang digunakan dalam pembelajaran sudah sangat baik digunakan sebagai sumber belajar dan guru juga telah melakukan setiap tahap dalam pembelajaran dengan sangat baik. Sedangkan berdasarkan hasil wawancara dengan guru matematika, siswa cenderung lebih menyukai pembelajaran dengan menggunakan animasi, video, ataupun grafik.
ADAPTATION STRATEGIES TO HUMAN PHYSIOLOGICAL DISCOMFORT AMONG ELDERLY PEOPLE IN KATSINA URBAN, KATSINA STATE, NIGERIA
Authors: NATA'ALA S.M , SALEH H , HASHIDU U.S
Published: November 2024

Information on adaptation strategies to human physiological discomfort is very important for individuals, groups of people, planners, and policymakers in the world's tropical regions where thermal stress poses a significant threat to life, especially among elderly people. Based on this, the aim of the study, therefore, is to assess adaptation strategies to human physiological discomfort among elderly people due to temperature and humidity extremes in residential areas and workplaces during the hot and cold seasons in Katsina. A total of 100 copies of a questionnaire were administered to the elderly people to obtain information on their adaptation strategies. A stratified random sampling method was used to select the respondents in the study area. Descriptive statistics were then used to describe their perception of adaptation strategies to human physiological discomfort. Results obtained revealed that in the hot season, the majority of the respondents at residence areas and working places perceived outdoor and indoor with fans "respectively" as their best-adapting strategies to human physiological discomfort due to temperature and humidity extremes. However, in the cold season, the study revealed that the majority of the respondents in residence areas and workplaces perceived thick dress as their best-adapting strategy for human physiological discomfort due to temperature and humidity extremes. Adapting strategies to human physiological discomfort depends primarily not only on environmental conditions but relaxing in natural environments and using customized clothing materials.  People are encouraged to continue planting trees in and around their homes, working workplaces and to adequately prepare to adapt to extreme hot and cold seasons.
SPATIAL ANALYSIS OF PHYSICAL ACCESSIBILITY TO PUBLIC PRIMARY HEALTHCARE CENTERS IN KADUNA STATE, NIGERIA
Authors: AVERIK P.D , OBAFEMI A.A , OGORO M , NDABULA C , JIDAUNA G.G. , AKAWU C.B
Published: November 2024

The rising call for spatial justice in the distribution and access to public facilities especially health necessitated this study. The study sets out to assess the spatial patterns of physical accessibility to PPHCs in Kaduna State. Four physical accessibility parameters were used in this study: travel time, travel distance to the nearest Public Primary Healthcare Centers (PPHCs), mean distances between and within PPHCs, and effective geographic catchment area coverage of PPHCs. Both travel time and distance to the nearest PPHC were evaluated using a questionnaire. The mean distance between and within PPHCs for LGAs was estimated from the Nearest Neighbor Analysis. The effective geographic catchment area of a PPHC was determined using the geospatial Thiessen polygon method. Findings showed that 42% of the respondents, live close (< 2 km) to a PPHC facility. The proximity of the respondents from Igabi (52%), Zaria (49%), and Zangon-Kataf (51%) is closer than the other LGAs. Thiessen catchment area showed a wide range of variations with some PPHCs with very large areas (426 -615 km2) mostly found in the central senatorial zone, especially in Birnin Gwari and Chikun LGAs. The most widespread are PPHCs with relatively moderate catchment sizes of (187–339 km2) found across parts of northern, central, and southern senatorial and LGAs. The study concludes that areal and topographic factors as revealed by the polygon-derived catchment areas should also guide the decision for the siting of PPHCs in the state. Hence, additional PPHCs are recommended especially LGAs with extensive land masses.
REVIEWS OF PERSPECTIVES ON CONTEMPORARY APPROACHES AND TECHNIQUES IN FLUVIAL SYSTEMS EVALUATION AND MANAGEMENT
Authors: ABDULAZEEZ A , YARO A , JIDAUNA G.G , DANLADI A
Published: November 2024

This paper reviews fluvial geomorphology perspectives and methodologies for environmental sustainability by exploring and discussing major concepts, themes, and methodologies.  To meet the multidimensional aspect of fluvial geomorphology research, multidimensional approaches are now used. Fluvial geomorphology examines river channel morphology and how it is shaped by fluid flows interacting with erodible or resistant boundaries. Understanding equilibrium conditions and thresholds is key. A systems perspective is needed - any river segment is influenced by upstream and downstream conditions as part of an integrated drainage basin system. Field surveys, mapping, remote sensing, and GIS provide important morphological data on river planform, cross-sections, longitudinal profile features, sediment characteristics, etc. Statistical analysis helps detect spatial patterns and trends. Assessing channel changes over long periods is often necessary to fully understand contemporary fluvial processes and forms. Sediment storage and release causes significant time lags. Major human impacts include land use changes affecting hydrology, sediment budgets, channel boundaries; and infrastructure interrupting continuity. Sustainable management requires addressing root causes. Watershed level processes like water balances, erosion patterns, etc. strongly influence fluvial systems - coordinating river channel and upland catchment interventions is key. Models like SWAT, MIKE-SHE, and ANSWERS simulate hydrological processes but have limitations. They require robust spatial datasets spanning geology, topography, land use, climate, etc. Overall, a multidimensional, scale-conscious, historically contextualized assessment framework is required for evaluating fluvial systems. The review highlights techniques and datasets for such integrated diagnosis.
ANALISIS SALURAN PEMASARAN LADA PUTIH DI DESA AIR GEGAS KECAMATAN AIR GEGAS KABUPATEN BANGKA SELATAN
Authors: Atmaja Eddy Jajang , Udayana Made Andhika , Purwasih Rati
Published: November 2024

This research aims to: (1) determine pepper marketing channels (2) calculate pepper marketing margin (3) calculate pepper farmer share (4) analyze pepper marketing efficiency in Air Gegas Village. The research method used in this research is the survey method. The sampling technique used snowball sampling and the number of samples was 10 farmers and 2 trader collectors. The data collection methods used were interviews, observation and questionnaires. The data analysis method uses qualitative analysis, marketing margin analysis, farmer share analysis and marketing efficiency analysis. The research results show that 1) the marketing channels for pepper in Air Gegas Village are indirect selling and collecting traders as intermediaries. 2). The average marketing margin for pepper in Air Gegas Village is Rp. 4,500/kg. 3). The average farmer share of pepper in Air Gegas Village is 96.4%. 4). The average pepper marketing efficiency in Air Gegas Village is 1.83%.
Resilience Training for High School Student-Athletes: A Pilot of the Life and Leadership Through Sport Series
Authors: Bates Samantha , Nothnagle Emily , Mokadam Kethan
Published: November 2024

High school student-athletes are reporting unprecedented needs regarding their mental health and development of life and leadership skills. With stressors and pressures surmounting, there is an evident need for school-based interventions to prevent mental health concerns and teach student-athletes how to “bounce back” in the face of adversity. This article details the development, implementation, and evaluation of the Life and Leadership Through Sport Series, a six-session resilience skills training piloted in Tier I and Tier II formats. The aims of the study were to explore student-athlete and coach perceptions of the intervention and to examine whether student-athlete perceptions of the learning differed based on the delivery format. In total, 415 student-athletes and 26 coaches participated in the Tier I intervention, and 16 student-athletes participated in the Tier II intervention. Using a post-training evaluation measure, descriptive statistics indicated student-athletes participating in the Tier II intervention reported more favorable perceptions of the intervention and efficacy regarding the learning outcomes compared to those participating in the Tier I intervention. Our pilot provides preliminary evidence regarding the potential for the Life and Leadership Through Sport Series to act as an evidence-based Tier II intervention for high school student-athletes participating in school-based sports.
Engaging Youth with the Teaching Personal and Social Responsibility Framework: Sport Psychology Graduate Students’ Experience in a Service-Learning Course
Authors: Wyatt Olivia , Altieri Jr. Val , McCarthy John , Hayden Laura , Whitley Meredith , Diehl Robert , Tichnor-Wagner Ariel
Published: November 2024

Purpose: Grounded in the framework of Hellison’s (2011) Teaching Personal and Social Responsibility model, this study sought to understand how graduate students learned to facilitate a youth physical activity program while participating in a service-learning course designed to promote sport for development. Methods: This study utilized a thematic narrative analysis approach. Researchers interviewed one cohort of Master’s students (n=5) studying counseling and sport psychology who participated in the service-learning course. Results: Identified themes included: (1) supervision and consultation, (2) observation, and (3) self-reflection, along with emergent sub-themes when relevant. Conclusions: This research provides insight into how future service-learning courses in the field of counseling and sport psychology can be developed to facilitate graduate student learning through a culturally conscious lens. Applications in Sport: This information can be valuable for sport psychologists, sport social workers, mental performance consultants, physical education teachers, and coach educators when considering how to promote the development of future practitioners.
2023 Books Received / Livres reçus
Authors: Mastorakou Stamatina
Published: November 2024

Please note that the editorial foreword does not include an abstract.
Jeremy Armstrong War and Society in Early Rome. Cambridge: Cambridge University Press, 2021.
Claire Bubb. Dissection in Classical Antiquity. Cambridge: Cambridge University Press, 2022.
David H. Camden. The Cosmological Doctors of Classical Greece: First Principles in Early Greek Medicine. Cambridge: Cambridge University Press, 2023.
Nathan Carlig ed. «Mes voeux les meilleurs et santé continuelle». Réponses aux épidémies dans le monde Gréco-Romain. Liège: Presses Universitaires de Liège, 2023.
Jean Christianides and Jeffrrey Oaks. The Arithmetica of Diophantus. A Complete Translation and Commentary. Abingdon/New York: Routledge, 2023.
Radcliffe G. Edmonds III. Drawing Down the Moon: Magic in the Ancient Greco-Roman World. Princeton/ Oxford: Princeton University Press, 2019.
Ida Fröhlich ed. Science in Qumran Aramaic Texts. Tübingen: Mohr Siebek, 2022.
Brian Glenney and José Filipe Silva edd. The Senses and the History of Philosophy. London/New York: Routledge, 2023.
Matthias Heiduk, Klaus Herbers, and Hans-Christian Lehner edd. Prognostication in the Medieval World. Berlin/Boston: De Gruyter, 2020.
Ralph Jackson. Greek and Roman Medicine at the British Museum: The Instruments and Accoutrements of Ancient Medicine. London: British Museum Press, 2023.
J. Cale Johnson and Alessandro Stavru. Visualizing the Invisible with the Human Body: Physiognomy and Ekphrasis in the Ancient World. Boston: De Gruyter, 2020.
Cécile Michel, and Karine Chemla edd. Mathematics, Administrative and Economic Activities in Ancient Worlds: Why The Sciences of the Ancient World Matter. Cham: Springer, 2020.
Iulian Moga. Religious Excitement in Ancient Anatolia: Cult and Devotional Forms for Solar and Lunar Gods. Leuven/Paris/Bristol: Peeters, 2019.
Courtney Ann Roby. The Mechanical Tradition of Hero of Alexandria.Cambridge: Cambridge University Press, 2023.
Nathan Sidoli and R. S. D. Thomas. The Spherics of Theodosios. Scientific Writings from the Ancient and Medieval World. Abingdon/New York: Routledge, 2023.
Virginia Trimble and David A. Weintraub edd. The Sky Is for Everyone: Women Astronomers in Their Own Words. Princeton: Princeton University Press, 2022.
Benno van Dalen. Ptolemaic Tradition and Islamic Innovation: The Astronomical Tables of Kūshyār ibn Labban. Turnhout: Brepols, 2021.
 
How to cite: Mastorakou, S. "2023 Books Received/Livres Reçus". Aestimatio: Sources and Studies in the History of Science (2023) 4: bm01 1–2. https://doi/10.33137/aestimatio.v4.43007
In memoriam José Chabás Bergón (1948–2024)
Authors: Goldstein Bernard R.
Published: November 2024

José Chabás Bergón (or simply José Chabás), professor emeritus at Universitat Pompeu Fabra (Barcelona), died on June 9, 2024 in Barcelona of complications following bypass surgery. His contributions to the study of astronomical tables significantly added to our knowledge of technical astronomy as practiced in the Middle Ages. Indeed, he was a leading scholar in this field.
 
How to cite: Goldstein, B. R. "In memoriam José Chabás Bergón (1948–2024)". Aestimatio: Sources and Studies in the History of Science (2023) 4: mem01 1–8. https://doi.org/10.33137/aestimatio.v4.44041
The Relationship Between Renewable Energy, Agriculture And Carbon Emissions: The Case of Turkey
Authors: Kapçak Servet , Işleyen Sakir
Published: November 2024

In this study, the relationship between renewable energy consumption, agriculture, and carbon emissions (CO2) is investigated. Time series boundaries cover the period 1990-2019 for Turkey. Economic growth and urbanization were added to the model as explanatory variables. The prediction model has been tested by the ARDL boundary value test and the direction of the variables is determined by the Granger(1969) causality test. The findings show that the variables are cointegrated in the long term and that while renewable energy consumption reduces carbon emissions, the agricultural sector increases carbon emissions. According to another finding, economic growth and urbanization variables have a positive effect on carbon emissions. Finally, a one-way relationship between the agricultural sector and economic growth to carbon emission has been identified. On the other hand, a one-way causality has been found between renewable energy consumption in the agricultural sector and urbanization. In addition, it has been found that there is a bidirectional causality between urbanization and urbanization and between economic growth and urbanization. These results show that renewable energy consumption, the agriculture sector, and carbon emissions interact in Turkey.
Synthesis and characterization of a new O,N,O-tridentate ligand and its Cu(I), Cu(II), Ag(I), Cd(II), Zn(II) and Re(II) complexes
Authors:   Laboratory of Advanced Materials and Process Engineering, Higher School of Education and Formation, University Ibn Tofail, P.B. 242-14000, Kenitra, Morocco, EL AZZOUZI Nabila , BAKHTAOUI Yassmina ,   Laboratory of Advanced Materials and Process Engineering, Department of Chemistry, Faculty of Sciences, Ibn Tofaïl University, B.P. 133, Kenitra 14000, Morocco, DARHMAOUI Fatimezzahra ,   Laboratory of Advanced Materials and Process Engineering, Department of Chemistry, Faculty of Sciences, Ibn Tofaïl University, B.P. 133, Kenitra 14000, Morocco, ZARROUK Abdelkader ,   Laboratory of Materials, Nanotechnology and Environment, Faculty of Sciences, Mohammed V University, Av. Ibn Battouta, P.O. Box. 1014, Agdal-Rabat, Morocco, BENSALAH Jaouad ,   Laboratory of Advanced Materials and Process Engineering, Department of Chemistry, Faculty of Sciences, Ibn Tofaïl University, B.P. 133, Kenitra 14000, Morocco, ABBOUDI Maryem El ,   Laboratory of Advanced Materials and Process Engineering, Department of Chemistry, Faculty of Sciences, Ibn Tofaïl University, B.P. 133, Kenitra 14000, Morocco, OUMIRDINE Ali ,   Laboratory of Advanced Materials and Process Engineering, Department of Chemistry, Faculty of Sciences, Ibn Tofaïl University, B.P. 133, Kenitra 14000, Morocco, RIFI El Housseine ,   Laboratory of Advanced Materials and Process Engineering, Department of Chemistry, Faculty of Sciences, Ibn Tofaïl University, B.P. 133, Kenitra 14000, Morocco
Published: November 2024

A novel pteridine-hydroxyphenyl-chalcone ligand (HPCLMH = hydroxyphenyl chalcone of 6-acetyl-1,3,7-trimethyllumazine) was synthesized and, once it was spectroscopically characterized, its behavior as a ligand was studied by the synthesis of a series of Cu(I), Cu(II), Ag(I), Cd(II), Zn(II) and Re(II) complexes. Once the metallic complexes have been synthesized and their purity was been established, they were characterized by means of analytical techniques (elemental analysis and TG) and spectral methods (IR, MS and RMN (1H, 13C, DEPT, HSQC)). The molecular structure of the ligand was designed such that the coordination ability through 6- acetyl-1,3,7- trimethyllumazine atoms was enhanced with a new O31 base atom of the keto-ethylene group -CO-CH=CH-. Thus, the coordination of this organic ligand can occur via the five heteroatoms N1b, N4b, O2a, O4a, and O31. Experimental data indicate that neither the carbonyl oxygen atom O2a nor the nitrogen atom N1b are involved in the coordination to the metal.
Molecular, crystal structure and Hirshfield analysis of tetrakis (2-propoxy isobutyl isonitrile) copper(I) tetrafluoroborate by power X-ray diffraction study
Authors:   Department of Physics, Atomic Energy Commission, P.O. Box 6091, Damascus, Syrian Arab  Republic, SABRA Mohammad K. , Al-KTAIFANI Mahmoud M. ,   Department of Radioisotopes, Atomic Energy Commission, P.O. Box 6091, Damascus, Syrian Arab Republic
Published: November 2024

The molecular and crystal structures of tetrakis (2-propoxy isobutyl isonitrile) copper(I) tetrafluoroborate [Cu(PIBI)4]BF4 were confirmed by powder X-ray diffraction study. The preparation and spectroscopic identification were previously reported. The molecular structure displays the distinctive caion [Cu(PIBI)4] + and anion [BF4]-. The Cu(I) center of [Cu(PIBI)4]+ unit is surrounded by four 2-propoxy isobutyl isonitrile ligands (each via its isonitrile C atom) asumming a typical tetrahedral geometry. The isontrile C atoms are covalently bonded to Cu center with a mean bond disntance of 1.963(7) Å and C-Cu-C angle of 109.4(4)ᵒ. The mean C≡N distance (1.138(9) Å) and rather linear of Cu-C≡N angles (the largest Cu-C-N angle is 177.8(6)ᵒ and the smallest angle is 173.9(0)ᵒ give a strong indication that the C≡N bond order of 3 in the complex [Cu(PIBI)4]BF4. The counter-ion BF4- has almost an ideal tetrahedral geometry with an average B-F bond distance of 1.350(4) Å. The crystal packing is achieved by C—H·· ·F short contacts, where each individual [BF4]- anion is involved symmetrically by its four F atoms with four different surrounding [Cu(PIBI)4]+ cations to form supramolecular three-dimensional network. A Hirshfeld surface analysis was carried out to investigate the intermolecular interactions.
Some theoretical considerations on an empirical hydrophobicity index in reversed-phase liquid chromatography
Authors:   University of Bucharest, Faculty of Chemistry, Department of Analytical and Physical Chemistry, Sos. Panduri, no. 90, sector 5, Bucharest, 050663, Roumania, DAVID Victor , GALAON Toma ,   University of Bucharest, Faculty of Chemistry, Department of Analytical and Physical Chemistry, Sos. Panduri, no. 90, sector 5, Bucharest, 050663, Roumania, CAIALI Edvin ,   University of Bucharest, Faculty of Chemistry, Department of Analytical and Physical Chemistry, Sos. Panduri, no. 90, sector 5, Bucharest, 050663, Roumania, MOLDOVEANU Serban C. ,   SM Consulting, LLC, Winston-Salem NC, USA
Published: November 2024

This study is analyzing the chromatographic hydrophobicity index (denoted by HIV) in reversed-phase liquid chromatography based on the linear dependence of the logarithm of experimental retention factor (log k) on the content of the organic component from mobile phase (retention function). In the literature HIV is given by the ratio between the logarithm of the extrapolated retention factor for water as mobile phase (log kw) and the slope (S) of the linear equation describing the dependence of log k on the organic solvent fraction () from mobile phase composition. The paper demonstrates that the parameter HIV is related to the extrapolated values of the retention factor for the extreme compositions of the mobile phase, namely to 100% aqueous component (log kw) and 100% organic component (log korg), respectively. A new empirical hydrophobicity descriptor (denoted by HIL) is proposed as an alternative to HIV, which is related only to slope S as a square root of (1 + S2). Some examples and correlations are discussed and compared using retention data acquired for different HPLC columns and mobile phase compositions, showing that HIL correlates better than HIV with octanol-water partition constant (log Kow) of studied solutes.
Correlation of solvent strength parameter with two molecular descriptors in reversed-phase liquid chromatography
Authors:   University of Bucharest, Faculty of Chemistry, Department of Analytical and Physical Chemistry, Sos. Panduri, no. 90, sector 5, Bucharest - 050663, Roumania, GALAON Toma , CAIALI Edvin ,   University of Bucharest, Faculty of Chemistry, Department of Analytical and Physical Chemistry, Sos. Panduri, no. 90, sector 5, Bucharest - 050663, Roumania, MOLDOVEANU Serban C. ,   SM Consulting, LLC, Winston-Salem NC, USA, DAVID Victor ,   University of Bucharest, Faculty of Chemistry, Department of Analytical and Physical Chemistry, Sos. Panduri, no. 90, sector 5, Bucharest - 050663, Roumania
Published: November 2024

A new hydrophobicity index has been previously developed and reported (Rev. Roum. Chim., 2023, submitted). The new index is based only on the solvent strength parameter (S) that describes the linear dependences (log k = log kw - S) between the logarithm of the retention factor (k) and volume fraction of the organic modifier in mobile phase () in an HPLC separation. The correlations between the new hydrophobicity index and octanol-water partition constant (log Kow) were evaluated and reported in present study for a set of 20 solutes by using seven C18 HPLC columns and two organic modifiers, typically utilized in reversed-phase HPLC applications (acetonitrile and methanol). All the correlations were good, showing values above 0.85. Correlations between the extrapolated values of retention factor to zero percent of the organic modifier in mobile phase, log kw, and log Kow showed also good determination coefficients R2, unlike an older hydrophobicity index based on the ratio between log kw and S, which was generally characterized by lower R2 than 0.8 for acetonitrile and 0.7 for methanol.
Hypercoordination in triorganoantimony(III) compounds. Case study of heteroleptic
[2,6-(Me2NCH2)2C6H3]2(Ph)Sb
Authors:   Supramolecular Organic and Organometallic Chemistry Centre (CCSOOM), Chemistry Department, Faculty of Chemistry and Chemical Engineering, “Babeş-Bolyai” University, RO-400028 Cluj-Napoca, Roumania, ȘUTEU Răzvan , SILVESTRU Cristian ,   Supramolecular Organic and Organometallic Chemistry Centre (CCSOOM), Chemistry Department, Faculty of Chemistry and Chemical Engineering, “Babeş-Bolyai” University, RO-400028 Cluj-Napoca, Roumania, SILVESTRU Anca ,   Supramolecular Organic and Organometallic Chemistry Centre (CCSOOM), Chemistry Department, Faculty of Chemistry and Chemical Engineering, “Babeş-Bolyai” University, RO-400028 Cluj-Napoca, Roumania
Published: November 2024

The triorganoantimony(III) compound [2,6-(Me2NCH2)2C6H3]2(Ph)Sb (1), containing three aryl groups, two of them with two pendant arms capable for N→Sb intramolecular interactions, was prepared and structurally investigated, both in solution and in solid state. The 1H and the 13C NMR spectra suggested no intramolecular N→Sb interaction. The molecular structure was determined by single-crystal X-ray diffraction and revealed a N,C,N-tridentate coordination of one 2,6-(Me2NCH2)2C6H3 group, while the other one displayed only a C,N-bidentate coordination behaviour towards antimony. The coordination environment about antimony is a highly distorted octahedron, and the compound can be described as a 14Sb6 hypercoordinate species.
Alkylation of morpholine with
2-(chloromethyl)-nitronyl-nitroxide: a new ligand and its nickel complex
Authors:   Faculty of Chemistry, University of Bucharest, 4–12 Regina Elisabeta Blvd., 030018 Bucharest, Roumania; “Costin D. Nenițescu” Institute of Organic and Supramolecular Chemistry of the Roumanian Academy, 202B Splaiul Independenței, 060023 Bucharest, Roumania, DIMITRIU Ștefan , RĂDUCĂ Mihai ,   Faculty of Chemistry, University of Bucharest, 4–12 Regina Elisabeta Blvd., 030018 Bucharest, Roumania; “Costin D. Nenițescu” Institute of Organic and Supramolecular Chemistry of the Roumanian Academy, 202B Splaiul Independenței, 060023 Bucharest, Roumania, TECUCEANU Victorița ,   “Costin D. Nenițescu” Institute of Organic and Supramolecular Chemistry of the Roumanian Academy, 202B Splaiul Independenței, 060023 Bucharest, Roumania, HANGANU Anamaria ,   Faculty of Chemistry, University of Bucharest, 4–12 Regina Elisabeta Blvd., 030018 Bucharest, Roumania; “Costin D. Nenițescu” Institute of Organic and Supramolecular Chemistry of the Roumanian Academy, 202B Splaiul Independenței, 060023 Bucharest, Roumania, ANDRUH Marius ,   Faculty of Chemistry, University of Bucharest, 4–12 Regina Elisabeta Blvd., 030018 Bucharest, Roumania; “Costin D. Nenițescu” Institute of Organic and Supramolecular Chemistry of the Roumanian Academy, 202B Splaiul Independenței, 060023 Bucharest, Roumania
Published: November 2024

A new nitronyl nitroxide ligand (L) has been obtained by the alkylation reaction of morpholine with 2-(chloromethyl)-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazolyl-1-oxyl 3-oxide (NIT-CH2Cl). The reaction of L with [Ni(hfac)2(H2O)2] in hot n-heptane affords the mononuclear complex, [NiL(hfac)2] (1), characterized herein by single crystal X-ray diffraction, FTIR and UV-Vis spectroscopies. Within the nickel(II) complex, L acts as a chelating ligand, through one aminoxyl oxygen and through the morpholine nitrogen atom. The crystal structure of alkylation agent (NIT-CH2Cl) has been solved.
Xu thế phát triển kinh tế số và sự tham gia của cộng đồng doanh nghiệp vào phát triển khoa học, công nghệ và đổi mới sáng tạo ở Việt Nam
Authors: Lê Thị Anh Vân , Dương Thùy Linh
Published: November 2024

Bài viết này phân tích các xu hướng phát triển của nền kinh tế số và vai trò của doanh nghiệp trong thúc đẩy khoa học, công nghệ, và đổi mới sáng tạo tại Việt Nam. Trên cơ sở đánh giá mức độ tác động của bảy xu thế phát triển kinh tế số đến sự tham gia của cộng đồng doanh nghiệp vào phát triển khoa học, công nghệ và đổi mới sáng tạo ở Việt Nam, nghiên cứu khảo sát đại diện của 100 doanh nghiệp trên địa bàn thành phố Hà Nội. Kết quả chính cho thấy rằng nền kinh tế số đang phát triển mạnh mẽ và cộng đồng doanh nghiệp cần phải tham gia sâu rộng hơn vào việc thúc đẩy công nghệ và đổi mới sáng tạo để duy trì sự cạnh tranh. Từ đó, nghiên cứu kiến nghị chính phủ cần tạo ra môi trường pháp lý và chính sách thuận lợi, trong khi doanh nghiệp phải chú trọng hơn vào nghiên cứu và phát triển cũng như áp dụng công nghệ số để tạo đà phát triển bền vững trong kỷ nguyên số.
Middle Welsh dihynnyon ‘fragments, bits of meat’ and Breton dienn, Cornish dehen ‘cream’
Authors: Jorgensen Anders
Published: November 2024

This paper argues for an interpretation of Middle Welsh dihynnion as ‘skimmings’, i.e. ‘scum and fat skimmed from the cooking-pot’, rather than the traditional ‘fragments, bits of meat’. With this interpretation, Middle Welsh dihynnion can be connected to the otherwise etymologically isolated Breton dienn and Cornish dehen ‘cream’. All three words are derived from a Proto-Brittonic compound verb *di-hɪnn- ‘to skim, to scoop off’ which in turn ultimately stems from the Proto-Celtic verbal root *sem- ‘to pour, to scoop’.
Quantitative determination of tannins by titrimetry and spectrophotometry in raw materials of some representatives of the genus Rumex of three growing seasons
Authors: Poluyanov A. M. , Savelyeva A. E. , Koinova A.-D. , Polukhina A. G. , Gadzhieva F. I. , Sokolova A. Yu. , Antsyshkina A. M. , Bobkova N. V.
Published: November 2024

Introduction. Study of the chemical composition of medicinal plant raw materials and comparative analysis of the dynamics of accumulation of biologically active substances in related medicinal plants is necessary for the creation of highly effective and safe drugs. Similar metabolome to the officinal representative of the genus Rumex (hereinafter referred to as R.) – R. confertus – the metabolome of species widely distributed in Russia: R. crispus, R. obtusifolius, R. aquaticus, which determines the perspectivity of studying these species. Scientific and practical interest is represented by the study of the group of biologically active substances possessing antibacterial activity – tannins at different phenological stages of plant development.

Aim. Quantitative determination of tannins by permanganatometry and spectrophotometry methods in underground organs of R. confertus, R. crispus, R. obtusifolius, R. aquaticus, harvested in different phases of vegetation: regrowth, flowering and withering periods.

Materials and methods. Aqueous extracts from underground organs of the studied Rumex species were analyzed. Extractions and solutions obtained during the study were analyzed by permanganatometry, spectrophotometry and HPLC. The compounds from the group of tannins were identified by the wavelength of absorption maximum.

Results and discussion. The quantitative content of tannins was evaluated by permanganatometry, spectrophotometry and HPLC.

Conclusion. Tannins were detected and quantified in extracts from underground organs of R. confertus, R. crispus, R. obtusifolius, R. aquaticus and the dependence between their quantitative content and vegetation phase was analyzed.
Sistem Pengarsipan Menggunakan Metode UML Berbasis Web Puskesmas Payung Kabupaten Karo
Authors: Pangaribuan Lisda Juliana , Sembiring Enda Riska Br
Published: November 2024

Arsip mempunyai peranan yang penting dalam sebuah instansi atau perusahaan dan digunakan dalam mendukung proses administrasi atau kegiatan yang dilakukan instansi. Jika arsip yang dimiliki tidak dikelola dengan baik dapat mengakibatkan sulit menemukan informasi yang telah disimpan dan akhirnya dapat menghambat tahapan proses pekerjaan selanjutnya. Karena itu harus arsip dikelola menggunakan sistem pengelolaan yang baik dan benar. Pada penelitian ini dibahas bagaimana merancang, menerapkan sistem serta pemeliharaan dan keamanan dokumen sehingga terhindar dari kerusakan.sistem dibuat dengan menggunakan aplikasi php mysql dengan tujuan pengarsipan dokumen yang berbasis web ini dilakukan untuk membantu dan mencegah proses yang sangat lama dalam penyimpanan maupun pencarian suatu dokumen yang dibutuhkan diwaktu yang cepat, tepat dan terperinci. Oleh karena itu sistem ini sangat membantu pihak Tata Usaha – Payung  dalam melakukan pekerjaan dengan efektif dan efesien. Metode pengumpulan data dalam penelitian ini yaitu UMl.
Literasi Produk Asuransi Kecelakaan Diri Di PT. Askrindo Pada Pegawai Biro Perekonomian Sekretariat Daerah Provinsi Sumatera Utara
Authors: Sagala Putri Wulandini , Daulay Aqwa Naser
Published: November 2024

Penelitian ini membahas literasi produk asuransi kecelakaan diri di PT Asuransi Kredit Indonesia (Askrindo) pada pegawai Biro Perekonomian Sekretariat Daerah Provinsi Sumatera Utara. Meskipun asuransi kecelakaan diri memiliki manfaat penting dalam memberikan perlindungan finansial, tingkat literasi di kalangan pegawai masih rendah. Penelitian ini menggunakan metode kualitatif deskriptif dengan wawancara untuk mengeksplorasi pemahaman pegawai tentang produk ini. Hasilnya menunjukkan adanya perbedaan pemahaman di antara pegawai, serta kendala seperti terminologi yang rumit dan kurangnya edukasi. PT Askrindo berperan penting dalam meningkatkan literasi asuransi melalui program edukasi dan sosialisasi, yang diharapkan dapat memberikan perlindungan finansial yang lebih baik dan berkontribusi pada pembangunan ekonomi yang lebih stabil.
Implementasi Sistem Informasi Akuntansi (SIA) Berbasis Cloud Dalam Meningkatkan Efisiensi Operasional Bisnis Kecil
Authors: Syafaruddin Andi Riska Andreani , Natsir Nurasia , Syafaruddin Syafaruddin
Published: November 2024

Penelitian ini bertujuan untuk menganalisis implementasi Sistem Informasi Akuntansi (SIA) berbasis cloud dan dampaknya terhadap efisiensi operasional bisnis kecil. Di tengah meningkatnya persaingan di pasar, bisnis kecil perlu mengadopsi teknologi yang dapat meningkatkan produktivitas dan efisiensi operasional mereka. Dengan semakin banyaknya pilihan teknologi yang tersedia, SIA berbasis cloud muncul sebagai solusi yang menarik, menawarkan fleksibilitas dan kemudahan akses yang diperlukan oleh pemilik bisnis kecil untuk beradaptasi dengan cepat terhadap perubahan lingkungan bisnis. Metode penelitian yang digunakan adalah kualitatif dengan pendekatan studi kasus, yang melibatkan wawancara mendalam dan observasi langsung di beberapa bisnis kecil yang telah menerapkan SIA berbasis cloud. Temuan dari penelitian ini menunjukkan bahwa implementasi SIA berbasis cloud memberikan sejumlah keuntungan signifikan, termasuk pengurangan biaya operasional yang dihasilkan dari penghapusan kebutuhan akan perangkat keras mahal dan biaya pemeliharaan. Selain itu, otomatisasi proses akuntansi meningkatkan akurasi data, mengurangi kesalahan manusia, dan menghasilkan laporan keuangan yang lebih cepat dan tepat. Kemudahan akses informasi yang ditawarkan oleh sistem ini memungkinkan pemilik bisnis untuk mengambil keputusan yang lebih cepat dan responsif terhadap perubahan pasar. Temuan ini menegaskan pentingnya SIA berbasis cloud sebagai alat strategis bagi bisnis kecil dalam meningkatkan efisiensi dan daya saing mereka di era digital. Dengan demikian, adopsi SIA berbasis cloud tidak hanya berkontribusi pada efisiensi operasional, tetapi juga memberikan keunggulan kompetitif yang diperlukan untuk bertahan dan berkembang dalam pasar yang semakin kompetitif.
Monocultivo de casas
Authors: Alonso Reigia Daniel
Published: November 2024

El estudio se plantea analizar el fenómeno de eclosión de las urbanizaciones privadas en Uruguay y su impacto sobre entornos naturales y ecosistemas relevantes; con foco en los recursos hídricos asociados a la interfase costera oceánica. Se aborda el despliegue de las urbanizaciones privadas sobre los territorios costeros y cursos de agua asociados, desde una visión integral del problema. Reconociendo el incremento exponencial en los últimos años de los desarrollos urbanos privados asociados a la costa oceánica del Uruguay, se ofrece una metodología para el análisis de los territorios afectados (o potencialmente susceptibles de verse afectados) por este tipo de propuestas, analizando eventuales impactos acumulativos sobre los recursos naturales, ecosistemas y preexistencias, a través de una visión por cuencas y con escenarios prospectivos de ocupación y cambio y variabilidad climática. Asimismo, se proponen mecanismos alternativos de contralor y gestión de las urbanizaciones privadas desde los organismos del Estado, articulando la participación de actores locales; con una mirada a múltiples escalas, superadora del estudio caso a caso. Como conclusión se identifican contextos susceptibles de verse afectados por el incremento de urbanizaciones privadas (en formato de viviendas dispersas, pasto corto, lagunas artificiales) y la sustitución o retiro de ecosistemas relevantes existentes como pastizales, humedales y bosques nativos. Se proponen entornos específicos donde incorporar estrategias de resiliencia, con un enfoque de Adaptación Basada en Ecosistemas (AbE) para la mitigación de impactos en los cursos de agua y la reducción de riesgos de inundación sobre entornos construidos.
Evaluation and Prediction of Mechanical Properties According to Welding Methods of Ni 825/A516-70N Clad Plates
Authors: Hwang Cheolhong , Oh Jeongseok , Park Jini , Joe Myungwoo , Kim Sunhwan , Yoo Kyunghoon , Kim Sungwoong , Kim Youngjoo , Lee Sangyeob , Park Joonsik
Published: November 2024

In this study, the microstructures and mechanical properties of different methods of FCAW (Flux-cored arc welding) + FCAW or FCAW + GTAW (Gas tungsten arc welding) welding on Ni825/A516-70N clad plate were investigated, using a double U groove angle on a laboratory scale. The amount of specimen deformation with FCAW + FCAW welding was ~1.5 mm, and that with FCAW + GTAW welding was ~3.6 mm. In the Vickers hardness tests, the average hardness value of the FCAW + GTAW welding specimens tended to be higher, and the hardness of the steel showed the same value. Also, in the tensile tests, the maximum strength and elongation of the FCAW + GTAW specimens were found to be higher. The SEM analysis of the welding boundaries of each specimen revealed the phenomenon of grain refinement in the specimens with FCAW + GTAW welding. This was due to the slow welding speed of this welding process and the rapid cooling rate caused by the relatively low layer thickness despite the relatively high number of weld passes. The computer simulation of the amounts of deformation were similar, with a value of 1.5 mm for FCAW + FCAW and 3.6 mm for the computer simulation, indicating the credibility of the simulation. In the computational simulation of butt welding, FCAW + GTAW showed high values for both residual stress and angular strain. The L-seam and C-seam of the demo vessel size were welded under the same conditions as the actual welding. The residual stress and angular deformation in the L-seam were 849 MPa and 2.3 mm for the FCAW + FCAW and 852 MPa and 2.9 mm for FCAW + GTAW. The residual stress and angular deformation in the C-seam were 920 MPa and 0.7 mm for FCAW + FCAW and 930 MPa and 0.9 mm for FCAW + GTAW, respectively.
Microstructure Evolution and Mechanical Properties of Ta-Cladded Ni-Cr-Mo Low Alloyed Steel via Explosive Welding
Authors: Kim Si-Yeon , Kim Tae-Gyeong , Chang Sung-Jin , Kim Dong-Hoon , Yang Sung-Ho , Hong Hyun-Uk
Published: November 2024

The effects of welding variables (stand-off distance and explosive thickness) on the interfacial microstructure evolution and mechanical properties of explosively welded Ta alloy to Ni-Cr-Mo low alloyed steel have been investigated. Regardless of welding conditions (a stand-off distance of 3-5 mm and explosive thickness of 40-80 mm), the Ta/steel interface consistently exhibited a wavy configuration. This wavy interface facilitated the formation of vortex, resulting in strong interlocking. The height of the vortex increased with a larger stand-off distance at a fixed explosive thickness of 60 mm. Similarly, increasing the explosive thickness at a stand-off distance of 3 mm also resulted in a greater vortex height. The explosive weldability window, plotting the collision angle (β) against the collision point velocity (vc), was successfully established for the dissimilar Ta and steel plates. The upper limit prediction with N=0.11, as proposed by Wittman, best matched the experimental results. This guided the determination of the optimal condition, which was a standoff distance of 3 mm and an explosive thickness of 40 mm. A vortex melted zone (VMZ) was identified, which resulted from the dynamic intermixing of Ta and steel, combined with localized melting caused by high-energy collisions and heat accumulation. The VMZ surrounded by a highly deformed Ta alloy, showed the highest hardness. Near the interface on the steel side, a fine recrystallized grain structure was observed. No significant inter-diffusion was detected at the wavy Ta/steel interface. The tension-shear properties of the wavy interface, which was subjected to loading parallel to interface, showed a good balance of strength and ductility, confirming the soundness of Ta/steel interface.
The psychological and educational implications of e-learning among university students
Authors: Mahmoud Alaa Anmar ,Abdulkarim Nabil Abdel Aziz
Published: November 2024

The current research aims to identify the level of psychological and educational repercussions for university students and study the potential impact of each of the variables of gender (males - females), specialization (scientific - human), and the study stage (third and fourth), and the research community may be from Tikrit University students for the academic year 2021/ 2022.
      The two researchers prepared the psychological and educational reflection scale, which is a basic part of the basic requirements of the current research, if it is in its initial form of (40) paragraphs. In its final form, it consists of (40) paragraphs, and after collecting information and processing it statistically using the t-test, Pearson correlation coefficient and triple variance analysis, the researchers concluded that the level of psychological and educational repercussions for university students is average, and in light of the results, the researchers came up with a number of recommendations and suggestions.