jablonkagroup/rise_ai_scientists huggingface dataset:
Authors: Ibrahim Ilker Ozyigit | Belma Gjergjizi Nallbani | Ibrahim Ertugrul Yalcin | Goksel Demir | Gülten Kaşoğlu | Bertug Sakin
Source: Toxics (article, 2026-01-19)
Field: Chemistry — Analytical Chemistry

Detecting Heavy Metal Pollution in an Organized Industrial Zone: Soil–Plant Accumulation Patterns in a Medicinal Plant (Calamintha nepeta subsp. glandulosa) and Associated Health and Environmental Risk Implications Dilovasi district of Kocaeli is one of the largest industrial regions, and due to its high production capacity and industrial waste, the soil heavy metal levels in this region are exceptionally high. Consequently, this study focuses on essential elements (B, Ca, Cr, Cu, Fe, K, Mg, Mn, Na, Ni, Zn) and non-essential elements that are considered toxic to humans (Al, Cd, Pb), covering a total of thirteen elements. Accordingly, this study aims to highlight the degree of pollution in a Turkish Organized Industrial Zone located in the Dilovasi district of Kocaeli by quantifying the concentrations of the aforementioned elements in <i>Calamintha nepeta</i> subsp. <i>glandulosa</i> plants and soil samples, and by assessing their potential implications for human health. Significant accumulation of heavy metals in both soils and plant parts suggests that metal contamination, especially that of Fe (up to 1009.2 mg kg<sup>-1</sup>), is a matter of great concern in the Dilovasi district. The results revealed that the concentrations (mg kg<sup>-1</sup>) of Cr (23.0 ± 0.1), Fe (1292.5 ± 5.6), Pb (36.9 ± 0.1), Zn (151.2 ± 0.8), and Cd (3.6 ± 0.1) were considerably higher. However, the concentrations of Cu, Mn, and Ni were found to be within the permissible limits in accordance with the American Herbal Products Association and the World Health Organization referenced guideline values. Furthermore, heavy metal concentrations in <i>C. nepeta</i> subsp. <i>glandulosa</i> were generally higher in areas characterized by elevated soil metal levels, indicating a clear correspondence between soil contamination and plant metal content. Based on these findings, <i>C. nepeta</i> subsp. <i>glandulosa</i>, a plant with culinary and medicinal value, can be considered a useful bioindicator for assessing local heavy metal contamination. Pollution ; Soil water ; Heavy metals ; Phytoextraction process ; Contamination ; Soil contamination ; Nepeta ; Human health ; Metal Heavy Metals in Plants ; Heavy metals in environment ; Plant Stress Responses and Tolerance
Authors: Morana Dulić | Hannu Koistinen | Ronnie Berntsson
Source: FEBS Open Bio (article, 2026-02-01)
Field: Chemistry — Organic Chemistry

Highlights of the <scp>FEBS3</scp> + meeting <i>Exploring molecular frontiers</i> FEBS+ meeting Exploring molecular frontiers, held in Pula, Croatia, in autumn 2024 was jointly organized by the Croatian, Finnish, and Swedish Member Societies of the Federation of European Biochemical Societies (FEBS). The congress covered a wide variety of different biochemical themes, some of the highlights of which are presented in this 'In the Limelight' issue of FEBS Open Bio. We hope that, in addition to being scientifically useful and interesting, these articles will give a glimpse of the excellent science presented in the FEBS3+ meeting Exploring molecular frontiers and encourage attendance to future FEBS3+ meetings. Variety (cybernetics) ; Attendance ; Member states ; Editorial board Click Chemistry and Applications ; Protein Degradation and Inhibitors ; 14-3-3 protein interactions
Authors: Benjamin D. Horning | Cian Kingston | Gabriel M. Simon | Matthew P. Patricelli | David S. Weinstein | Brian N. Cook
Source: Journal of Medicinal Chemistry (article, 2026-03-17)
Field: Chemistry — Organic Chemistry

Normalizing Covalent Potency for Electrophilicity with Ligand Reactivity Efficiency Covalent modalities represent an important component of the modern medicinal chemist's toolbox for pursuing challenging targets in drug discovery. By taking a "covalent-first" approach to identifying druggable pockets on challenging-to-drug targets, we and others have expanded accessible target space and driven fragment-like hits to clinical-stage molecules. The field has long recognized intrinsic warhead reactivity as a key parameter to monitor, typically addressed by determining <i>k</i><sub>inact</sub> and <i>K</i><sub>I</sub> values, which are impractically time-intensive and can be misleading regarding reactivity. Here we present an alternative way to normalize potency for electrophilicity utilizing glutathione (GSH) consumption data, which enables us to extract target-specific improvements in potency, a metric we term ligand reactivity efficiency (LRE). Our hope is that the details of our approach and this metric will simplify the rational design of covalent drugs for fellow practitioners in the field. Electrophile ; Ligand (biochemistry) ; Potency ; Reactivity (psychology) ; Covalent bond ; Chemical synthesis Chemical Reaction Mechanisms ; Free Radicals and Antioxidants ; Chemical Reactions and Mechanisms
Authors: Guochu Deng
Source: Physica B Condensed Matter (preprint, 2026-01-21)
Field: Materials Science — Electronic, Optical and Magnetic Materials

Internal and external field effects upon crystal field excitations in REFeO3 (RE = Nd3+, Er3+, Yb3+, Pr3+, and Ho3+) Zeeman effect ; Orthoferrite ; Ion ; Crystal (programming language) ; Field (mathematics) ; Ground state Multiferroics and related materials ; Magnetic Properties and Synthesis of Ferrites ; Photorefractive and Nonlinear Optics
Authors: Bowen Tang | Yi Xu | Ran Zhuo | Ju Tang
Source: Coatings (article, 2026-01-30)
Field: Materials Science — Materials Chemistry

Insulation Design of Gas–Solid Interface at HVDC Condition—Part II: Impacts of Metallic Charged Particles and New Challenges from Eco-Friendly Insulating Gases High-voltage direct current gas-insulated equipment (HVDC GIE) is becoming a key component in DC transmission systems due to its compactness and reliability, particularly for cost-effective offshore wind power integration. However, its reliability is compromised by surface charge accumulation at the gas–solid interface—a problem intensified by metallic contaminants and the adoption of eco-friendly gas mixtures. Addressing this challenge requires not only material and design innovations but also the development of standardized testing protocols to validate insulation performance. This review systematically examines the critical, interconnected areas essential for advancing HVDC GIE, focusing on the dynamics of charged metallic particles and their role in charge accumulation, interface charge behavior under alternative gas environments, and experimental methodologies with evolving test standards. By synthesizing insights across these domains, this work aims to provide both theoretical insights and practical guidance for optimizing HVDC GIE insulation design formulating scientifically grounded operation and maintenance strategies. Reliability (semiconductor) ; Interface (matter) ; Component (thermodynamics) ; Power transmission ; Work (physics) ; Power (physics) ; Charge (physics) ; Transmission (telecommunications) High voltage insulation and dielectric phenomena ; Power Transformer Diagnostics and Insulation ; Aerosol Filtration and Electrostatic Precipitation
Authors: Kenji Uchino
Source: Journal of Material Sciences and Engineering Technology (article, 2026-04-10)
Field: Materials Science — Materials Chemistry

Common Misconceptions in Piezoelectric Researchers The development of piezoelectric actuators necessitates an interdisciplinary approach, encompassing knowledge from multiple areas, including materials physics and chemistry, electrical and mechanical engineering, and design and marketing strategies. The dissemination of erroneous information is a phenomenon that occurs due to the dearth of knowledge possessed by researchers who are new to the field. This phenomenon can be attributed to the presence of misconceptions, which consequently result in a delay in the innovative developments of the subsequent generation. This paper serves as an instructive tutorial, aiming to rectify common misconceptions among researchers in the fields of ferroelectric and piezoelectric domains. The text reviews the top 12 misconceptions among recent publications, primarily related to the misunderstanding of the following terms relevant to this area: “Voltage and Electric Field,” “Ionic Displacement and Strain,” “Mistake in Strain Measurement,” “Boundary Condition Dependence of Permittivity and Elasticity,” “Energy Transmission Coefficient and Efficiency,” “Thin Film Device Designing,” “Piezoelectric Vibration Damping,” “Mechanical Impedance Matching,” “Piezoelectric Energy Harvesting,” “Resonance and Anti-Resonance,” “System Design Principle,” and “Best-Selling Devices.” These topics were followed by their rectifications, which aimed to promote future smooth progress in piezoelectric actuators. Piezoelectricity ; Phenomenon ; Mechanical impedance ; Displacement (psychology) ; Piezoelectric coefficient ; Permittivity ; Electrical impedance Ferroelectric and Piezoelectric Materials ; Innovative Energy Harvesting Technologies ; Piezoelectric Actuators and Control
Authors: Abide Baltacı | Tuncay Özsevgeç
Source: Journal of Computer and Education Research (article, 2026-03-17)
Field: Chemistry — Physical and Theoretical Chemistry

Sanal ve Gerçek Laboratuvar Uygulamalarının Öğrencilerin Akademik Başarı ve Tutumlarına Etkisi Bu çalışma, sanal ve gerçek laboratuvar uygulamalarının ortaokul 5. sınıf öğrencilerinin fen bilimleri dersindeki akademik başarı ve tutumlarına etkisini karşılaştırmalı olarak incelemiştir. 2024-2025 eğitim yılında Trabzon’daki bir devlet okulunda yarı deneysel desenle yürütülen araştırmada, her iki yöntemin de başarıyı anlamlı biçimde artırdığı bulunmuştur. Sanal laboratuvarlar soyut kavramların öğretiminde daha etkiliyken, gerçek laboratuvarlar deneysel süreçleri doğrudan deneyimleme fırsatı sunmuştur. Her iki uygulama da fen bilimlerine yönelik tutumları olumlu etkilemiştir. Bulgular, öğretmenlerin dijital yeterliliklerinin geliştirilmesi ve laboratuvar altyapılarının güçlendirilmesinin öğrenme deneyimlerini zenginleştireceğini göstermektedir. Saline water ; Waste disposal ; Saline Various Chemistry Research Topics ; Education Practices and Challenges ; Mobile Learning in Education
Authors: Mimoza Dani | Sára Beszteri | Andrea Burfeid Castellanos | Katherina Schimani | Oliver Skibbe | Jonas Zimmermann | André Soares | Lea Griesdorn | Alexander J. Probst | Maria Kahlert | Bánk Beszteri
Source: Journal of Phycology (article, 2026-01-19)
Field: Materials Science — Biomaterials

<scp>Species</scp> delimitation within the <i>Achnanthidium minutissimum</i> complex (Bacillariophyta), based on morphological, molecular, and ecophysiological approaches The benthic diatom species Achnanthidium minutissimum belongs to a species complex with a challenging taxonomy. Achnanthidium minutissimum has been reported to be a widespread and abundant species occurring in a broad range of freshwater habitats. However, differentiating and delimiting it from other Achnanthidium species is challenging due to the small size and great similarity of the different species, often with overlaps in morphological features. Therefore, reports of the occurrence of these taxa probably come with a large uncertainty due to potential misidentification. To gain a better understanding of the boundaries between species within the A. minutissimum species complex, we applied an integrative taxonomic approach and investigated the congruence between morphological, molecular, and ecophysiological variability among 13 monoclonal strains isolated from Germany, Sweden, and Spitsbergen. In addition to the characterization of valve morphology, we assessed their growth under different temperatures and salt concentrations and compared sequences of the rbcL marker gene as well as of a broad set of homologous loci sampled by genome skimming. Molecular and ecophysiological variability was mostly congruent with scanning electron microscopy-based morphological identification; the main exception was that two pairs of strains identified as A. cf. microcephalum and A. jackii could be distinguished neither in their ecophysiological profiles nor in their DNA sequences. Extending this integrated taxonomic approach to more strains will be beneficial for a better understanding of the morphological, molecular, and niche differentiation among different Achnanthidium species. The added value of the combined morphological-molecular-ecophysiological approach is an improved delineation of morphological features applicable for species differentiation and a better understanding of ecological differentiation. Taxon ; Niche ; Range (aeronautics) ; Species complex ; Ecological niche ; Genome ; Taxonomy (biology) Diatoms and Algae Research ; Marine and coastal ecosystems ; Aquatic Ecosystems and Phytoplankton Dynamics
Authors: S. J. Ghasemnezhad | M. Mirzaie | A. Gholami
Source: International Journal of Engineering (article, 2026-01-01)
Field: Materials Science — Materials Chemistry

Simulation and Analysis of Voltage Distribution and Leakage Current in Porcelain and Glass Insulator Strings Considering of Pollution, String Deviation, and Defective Units Effects Insulator strings are important and critical components of overhead lines, providing insulation properties and preventing leakage currents. This paper assesses the influence of several factors on the voltage distribution and leakage currents of insulator strings. Non-uniform voltage distribution among the units of an insulator can lead to degradation of the string and reduced reliability of the overhead lines and power network. In this study, a detailed analysis of five-unit porcelain and glass insulator strings under various conditions is conducted using circuit modeling and simulation in the MATLAB environment. The investigated scenarios include different levels of surface pollution, deviations of the insulator string toward or away from the tower, and the presence of a defective unit within the string. The results indicate that increasing pollution levels improves voltage distribution uniformity among the units, thereby enhancing the overall efficiency of the string; however, it also results in an increase in leakage current. Moreover, when the string is deflected outward (away from the tower) compared to inward deviation, a more uniform voltage distribution is achieved along with a notable reduction in leakage current. In the scenario involving a defective unit, the voltage stress on that unit decreases, and its voltage share is redistributed among the remaining healthy units depending on their relative positions. Simulations show that glass insulator strings exhibit a more uniform voltage distribution and higher efficiency compared to porcelain insulator strings under clean conditions and also under low to medium pollution levels. Insulator (electricity) ; Voltage ; Leakage (economics) ; High voltage ; MATLAB ; Overhead line ; Low voltage High voltage insulation and dielectric phenomena ; Thermal Analysis in Power Transmission ; Lightning and Electromagnetic Phenomena
Authors: Muhammad Fahmi Arifin | Yudi Setio Prabowo | Muhammad Oka Mahendra
Source: Jurnal Teknik Sipil (article, 2026-01-30)
Field: Materials Science — Polymers and Plastics

Analysis of Adding Durian Skin Fiber as a Coarse Aggregate Additive in Concrete The extensive use of concrete has accelerated the depletion of natural aggregates and increased the accumulation of underutilized agricultural waste. Durian peel is a biomass residue with potential application in cement-based materials. This study investigates the feasibility of using untreated durian peel fiber as an additive to coarse aggregate in K-175 grade concrete. Unlike previous studies that primarily focus on chemically treated natural fibers, this research establishes the baseline performance of untreated durian peel fiber to identify its practical limitations. An experimental program was conducted using fibers sourced from Serang and Cilegon, Indonesia, processed through cleaning, cutting, and drying. Concrete mixtures were prepared with fiber contents of 0%, 2%, and 4% by weight of coarse aggregate. Twelve 150 mm cube specimens were tested for slump and compressive strength at curing ages of 3 and 7 days. Results indicate that increasing fiber content consistently reduced workability and compressive strength. At 7 days, compressive strength decreased from 5.40 MPa to 4.10 MPa and 2.15 MPa for 2% and 4% fiber additions, respectively. These findings confirm that untreated durian peel fiber is unsuitable for structural concrete but may be suitable for non-structural applications after material modification. Compressive strength ; Curing (chemistry) ; Slump ; Fiber ; Aggregate (composite) ; Natural fiber Natural Fiber Reinforced Composites ; Innovative concrete reinforcement materials ; Hygrothermal properties of building materials
Authors: Nadia Sharif | Rakhshinda Sadiq | Farzana | Arooj Javed | Maimoona Ilyas | Afshan Wahab | Ayesha Bibi
Source: Indus journal of bioscience research. (article, 2026-03-30)
Field: Materials Science — Biomaterials

Reforming Food Security and Safety: The Impact of Emerging Technologies Introduction: Our daily life is significantly influenced by the technological advancements and the field of food production and safety has been no exception. The integration of new technologies has brought a paradigm shift in how we approach food security and safety. Bibliometric software can help academics, to analyze published results and insights, facilitate debates on hotspots and development trends in the study field, and promote academic collaboration. Aim of the Study: This article aims to provide a comprehensive bibliometric analysis of the trends in food security and food safety untill 2023. It seeks to identify emergent trends and assess their impact on the industry. Methodology: The study accessed data from Google Scholar, Web of Science, Scopus, and Dimensions Analytics. Data visualization tools such as VosViewer and CiteSpace were employed to analyze document counts, keywords, research collaborations, disciplines, citations, and top-cited articles. Results: The analysis revealed that chitosan, phenolic compounds, edible coatings, and polysaccharides are increasingly used to enhance the shelf life of food. The highest number of articles published in 2023, totaling 2,041, focused on chemical spoilage. The study also found that in 2021, approximately 20,350 research and review articles were published on shelf life in food safety and security. In terms of recent trends, there were about 941,000 articles on automation, 3,600 related to nano-fertilizers, and 18,300 on Internet of things (IoT) in 2023. The United States, Italy, and the United Kingdom were identified as active contributors to research in these areas. Conclusion: The study concludes that technological advancements, particularly in hydroponics, IoT, vertical farming, edible coatings, and nano-fertilizers, are making a significant impact on enhancing food production and safety. However, there is a deficiency in the literature regarding the long-term effects of these technologies on human health and the environment, which warrants further research. The results underscore the importance of technology in advancing food security and safety, suggesting a promising direction for future innovations. Food security ; Bibliometrics ; Emerging technologies ; Food safety ; The Internet ; Web of science Nanocomposite Films for Food Packaging ; Food Waste Reduction and Sustainability ; Nanoparticles: synthesis and applications
Authors: Melani Putria Dewi Sari | Hartono Bancong | Rahmawati Rahmawati
Source: Jurnal Pendidikan MIPA (article, 2026-04-07)
Field: Chemistry — Physical and Theoretical Chemistry

Enhancing High School Spectroscopy Education: The Efficacy of a Virtual Reality Laboratory for Hydrogen Emission Experiments Many high schools struggle to conduct a hydrogen emission spectrum experiment because they lack sufficient, up-to-date, and easy-to-use optical equipment. As a result, students often miss opportunities to observe diffraction patterns and to connect their analyses to atomic transitions. This study developed a virtual-reality-based laboratory for a hydrogen emission spectrum experiment to measure the spectrum across different diffraction orders and to improve students' learning outcomes. The ADDIE framework was used for the research and development process. It included analysis, design, development, implementation, and evaluation. Four physics teachers were interviewed to identify classroom problems and users' needs. The virtual reality-based laboratory made a hydrogen light source, a spectrometer, and a diffraction grating that users could interact with to align and measure angles for data collection. Three experts used a Likert-scale tool to rate its validity with respect to scientific accuracy, instructional design, and ease of use. Used Aiken's V to check for validity. The simulations showed that the diffraction patterns were always the same. The average angle changed from violet to red, and the second-order angle was always higher than the first-order angle for the same color. The first- and second-order wavelength estimates were very close to each other (3.80×10⁻⁷–6.20×10⁻⁷ m), and 97–98% of the colors measured were the same in all orders. The values we found for the constants were very close to the known values (Rydberg constant 1.096×10⁷ m⁻¹, error 0.09%; Planck constant 6.663×10⁻³⁴ J s, error 0.56%). Validator coefficients (0.80–0.90) helped improve things, such as a phased rollout, a zoomable angular scale, feedback on alignment, and smoother interactions with the controller. The learning outcomes improvement, measured using the normalized gain index (N-Gain), was N-Gain = 0.83 (83.11%). This shows that the development of media has improved students' learning outcomes. Virtual reality laboratories are more accessible and help students learn more about spectroscopy. Keywords: diffraction grating simulation; hydrogen emission spectrum; physics education; spectroscopy experiment; virtual reality laboratory. Diffraction ; Diffraction grating ; Validator ; Grating ; Measure (data warehouse) ; Constant (computer programming) ; Wavelength Various Chemistry Research Topics ; Science Education and Pedagogy ; Experimental and Theoretical Physics Studies
Authors: Matan Bocarsly | Indranil Roy | Weifeng Zhi | Li-Qiao Xia | Aviram Uri | Yves H. Kwan | Aaron L. Sharpe | Matan Uzan | Yuri Myasoedov | Kenji Watanabe | Takashi Taniguchi | Trithep Devakul | Pablo Jarillo-Herrero | Eli Zeldov
Source: ArXiv.org (article, 2026-03-23)
Field: Materials Science — Materials Chemistry

Electrically controllable valence-conduction band reversals in helical trilayer graphene In moiré graphene systems, electronic interactions lift spin and valley degeneracies, leading to symmetry-broken ground states. In helical trilayer graphene (HTG), we uncover a distinct interaction-driven mechanism in which the roles of sublattice-polarized valence and conduction bands are cyclically reversed. Using scanning nano-SQUID magnetometry, we detect a series of sharp magnetic signatures consistent with seesaw-like transitions, where occupied and unoccupied valence and conduction bands interchange repeatedly with doping, accompanied by a novel form of magnetic hysteresis. These transitions occur entirely within metallic regimes and leave only weak fingerprints in transport measurements. Self-consistent Hartree-Fock calculations reveal that interactions reorganize all eight low-energy flat bands, driving abrupt changes in orbital magnetization. Our results establish HTG as the first system where electronic interactions provide doping-controlled access to all three internal degrees of freedom - spin, valley, and sublattice - introducing a new class of correlated phase transitions. Graphene ; Thermal conduction ; Conduction band ; Valence (chemistry) ; Valence band ; Degrees of freedom (physics and chemistry) ; Ferromagnetism Graphene research and applications ; Topological Materials and Phenomena ; 2D Materials and Applications