bluuebunny/crossref_metadata_2025 huggingface dataset:
Composição química, atratividade à insetos, produção e qualidade de sementes de soja RR e IPRO
Authors: Ferreira Thaís Francielle , Carvalho Rafaela Aparecida de , Mavaieie Denilson Paulo da Rosa , Oliveira João Almir , Oliveira Thaísa Fernanda , Pires Raquel Maria de Oliveira
Published: December 2024

A composição química de sementes é um fator genético que sofre influência de diversos fatores ambientais. Além dos fatores ambientais, a inserção de genes através de transgenia pode causar modificações na composição química das sementes e torná-las mais atrativas ao ataque de insetos. Objetivou-se avaliar as modificações causadas pelas tecnologias RR e IPRO na composição química, atratividade à insetos, produção e qualidade de sementes de soja. Utilizou-se o delineamento experimental de blocos casualizados com 3 repetições para cada uma das 14 cultivares que compuseram os tratamentos, sendo 7 RR e 7 IPRO. Após a colheita determinou-se a produtividade, a viabilidade das sementes, pelo teste de germinação, e o vigor, pelo teste de tetrazólio. A composição química das sementes foi determinada pela análise centesimal das sementes, na qual foram medidos umidade, extrato etéreo, proteínas, carboidratos (fibras + fração glicídica) e minerais (cinzas). Para a quantificação das sementes atacadas por percevejos foi realizado o teste de tetrazólio. Maiores teores de proteína nas sementes proporcionaram maior germinação e vigor, ao contrário de maiores teores de óleo. Houve uma menor incidência de danos por percevejos em sementes com alta concentração proteica e maior ocorrência em sementes com altas concentrações de carboidratos. Cultivares IPRO foram mais susceptíveis à incidência de percevejos quando comparadas a cultivares RR.
Earthquake Fault Rupture Modeling and Ground-Motion Simulations for the Southwest Iceland Transform Zone Using CyberShake
Authors: Rojas Otilio , Monterrubio-Velasco Marisol , Rodríguez Juan E. , Callaghan Scott , Abril Claudia , Halldorsson Benedikt , Kowsari Milad , Bayat Farnaz , Olsen Kim B. , Gabriel Alice-Agnes , de la Puente Josep
Published: December 2024

CyberShake is a high-performance computing workflow for kinematic fault-rupture and earthquake ground-motion simulation developed by the Statewide California Earthquake Center to facilitate physics-based probabilistic seismic hazard assessment (PSHA). CyberShake exploits seismic reciprocity for wave propagation by computing strain green tensors along fault planes, which in turn are convolved with rupture models to generate surface seismograms. Combined with a faultwide hypocentral variation of each simulated rupture, this procedure allows for generating ground-motion synthetics that account for realistic source variability. This study validates the platform’s kinematic modeling of physics-based seismic wave propagation simulations in Southwest Iceland as the first step toward migrating CyberShake from its original study region in California. Specifically, we have implemented CyberShake workflows to model 2103 fault ruptures and simulate the corresponding two horizontal components of ground-motion velocity on a 5 km grid of 625 stations in Southwest Iceland. A 500-yr-long earthquake rupture forecast consisting of 223 hypothetical finite-fault sources of Mw 5–7 was generated using a physics-based model of the bookshelf fault system of the Southwest Iceland transform zone. For each station, every reciprocal simulation uses 0–1 Hz Gaussian point sources polarized along two horizontal grid directions. Comparison of the results in the form of rotation-invariant synthetic pseudoacceleration spectral response values at 3, 4, and 5 s periods are in good agreement with the Icelandic strong motion data set and a suite of empirical Bayesian ground-motion prediction equations (GMPEs). The vast majority of the physics-based simulations fall within one standard deviation of the mean GMPE predictions, previously estimated for the area. At large magnitudes for which no data exist in Iceland, the synthetic data set may play an important role in constraining GMPEs for future applications. Our results comprise the first step toward comprehensive and physics-based PSHA for Southwest Iceland.
Characterizing Directivity in Small (M 2.4–5) Aftershocks of the Ridgecrest Sequence
Authors: Chu Shanna , Baltay Annemarie , Abercrombie Rachel
Published: December 2024

Directivity, or the focusing of energy along the direction of an earthquake rupture, is a common property of earthquakes of all sizes and can cause increased hazard due to azimuthally dependent ground-motion amplification. For small earthquakes, the effects of directivity are generally less pronounced due to reduced rupture size, yet the directivity in small events can bias source property estimates and provide important insights into general regional faulting patterns. However, due to observational limitations, directivity is usually only measured and modeled for large events. As such, many studies of small earthquakes either ignore directivity altogether or assume a constant rupture direction for all events in a cluster. In our study, we apply a refined directivity fitting method constrained with two separate methods of source deconvolution to the dataset of aftershocks of the 2019 Ridgecrest earthquakes, which contain a large number of well-recorded small-to-mid sized earthquakes occurring in close proximity to each other. The revealed directivity of 100+ small (M 2.4–5) earthquakes is highly heterogeneous and primarily oblique to and away from the main fault strike, suggesting a complex postseismic stress redistribution. In addition, the energy focusing effect of directivity appears to bias the selection of high-quality data from stations in the direction of rupture, leading to average stress-drop increases of 50% if directivity is not accounted for.
Entorno positivo para los cuidados paliativos en Colombia 2025: Plan de Acción 2022-2025, Nodo Centro
Authors: Sánchez-Cárdenas Miguel Antonio , León Delgado Marta Ximena , Cañon Piñeros Angela María , Vargas-Escobar Lina María , Rodríguez-Campos Luisa Fernanda
Published: December 2024

Este documento contiene el plan de acción para mejorar la actividad de cuidados paliativos en Colombia del nodo Centro. Se ha estructurado siguiendo el modelo de evaluación propuesto por el Observatorio Colombiano de Cuidados Paliativos. Para cada uno de los objetivos estratégicos se plantean barreras, recursos y capacidades los cuales proceden del reporte técnico del Observatorio que acompaña este documento. El documento presenta una metodología mediante la cual durante la sesión se le pedirá al stakehorder de la región Centro que califique la factibilidad de las acciones propuestas y que discuta la prioridad de las acciones y los facilitadores estratégicos señalados (responsables de conducir la acción propuesta).
Synergistic Precision: Integrating Artificial Intelligence and Bioactive Natural Products for Advanced Prediction of Maternal Mental Health During Pregnancy
Authors: Irfan Neha , Zafar Sherin , Hussain Imran
Published: December 2024

Background: Present-day advancements in Artificial Intelligence (AI) and Machine Learning offer promising avenues for addressing psychological health challenges in pregnant women. Despite significant strides, there remains a gap in effective, accessible and personalised interventions for managing mental health risks during pregnancy, which can have profound implications on both maternal and fetal well-being. Aim: This study aims to develop a predictive model for monitoring and assessing the psychological health of pregnant women. The goal is to create an accessible tool using machine learning algorithms and sustainable technologies to provide early warnings and support interventions for mental health issues. Methods: The research utilised a dataset comprising psychological health indicators of pregnant women, including symptoms such as anxiety, depression and sleep disturbances. Machine Learning models, including Random Forest, Decision Tree, Support Vector Machine (SVM), Logistic Regression and Gaussian Naive Bayes, were employed to classify mental health status. The models were evaluated using metrics like accuracy, precision, recall and F1-score. A web-based chatbot was developed to integrate the predictive model, providing real-time mental health assessments and personalised recommendations. Results: The Random Forest model demonstrated superior performance, achieving an accuracy of 92%, outperforming other models like SVM and Decision Tree, which achieved accuracies of 88% and 85%, respectively. Integrating the model into a web-based chatbot provided users with an interactive and user-friendly platform for mental health monitoring. Initial feedback from users indicated a 70% satisfaction rate with the tool’s ease of use and perceived accuracy. Conclusion: The study successfully developed a machine learning-based predictive model for assessing the psychological health of pregnant women, integrated into a web-based chatbot. This approach offers a promising, scalable solution for early detection and management of mental health challenges during pregnancy, potentially enhancing maternal and fetal outcomes through timely interventions.
Exploring the Protective Efficacy of Native Acacia catechu Bark Extracts Against Fe2+ Induced Lipid Peroxidation
Authors: Tiwari Archana , Agrawal Jyoti
Published: December 2024

Background: Acacia catechu is a valuable plant with diverse applications in traditional medicine, industry and ecological management. This plant is abundant in the Guna district of central India but lacks scientific research on its phytochemistry, properties, and medicinal uses. Aim: The present study analyzed six different bark extracts (methanol, ethanol, aqueous, acetone, chloroform and benzene) of native Acacia catechu for their concentration-dependent, season-dependent (winter, summer, and Manson), and solvent-dependent Lipid Peroxidation (LPO) inhibition potential. Methods: In this in vitro study, Fe2+ ions were used to induce LPO via oxidative stress in liver and kidney tissue homogenate, and the end product of the reaction, i.e., Malondialdehyde (MDA), was measured as MDA formed/hour/mg of protein. The bibliographic analysis was done using the dimention.ai database from 1999 to June 13th, 2024. Results: The results of the bibliographic study indicated that earlier no scientific study has been documented on the plant in question. The results of the experimental work indicated a marked increase in MDA level in FeSO4 treated tubes (p<0.0001), which was seen to be decreased (p<0.05 or less) in bark extracts as well as standard drug-treated tubes (p<0.0001). In comparative analysis, the 125 µl/mg concentration was seen to exhibit the highest protection (p<0.0001) among all tested concentrations, and the antioxidative capacity was seen in the order of ethanolic>aqueous>acetone>methanolic>chloroform>benzene extracts, though seasonal impacts were inconsistent. Additionally, the pattern of antioxidative activity was seen to be highly correlated (R2 = 0.996) in both liver and kidney tissues. Conclusion: The current work may contribute to the comprehension and utilization of the antioxidative characteristics of plant extracts, which might result in notable progress in the fields of medicines, cosmetics, food preservation, agriculture, and environmental management.
Structured catalysts for steam and steam-air conversion of ethanol into synthesis gas: I. Preparation and catalytic properties
Authors: Rogozhnikov V. N. , Potemkin D. I. , Stonkus O. M. , Shefer K. I. , Salanov A. N. , Pakharukova V. P. , Snytnikov P. V.
Published: December 2024

Steam reforming and autothermal reforming of ethanol produce synthesis gas suitable for both powering solid oxide fuel cells and serving as a feedstock for chemical industry applications. For these reactions to occur effectively, heat transfer must be controlled. In the case of endothermic steam reforming of ethanol, the problem of heat transfer from the reactor walls to the catalyst bed arises. For thermoneutral autothermal reforming (steam-air conversion) of ethanol, the problem arises of redistributing the heat released in the front part of the catalyst layer as a result of the oxidation of ethanol with oxygen along the catalyst layer to compensate for the endothermic effect of steam reforming of ethanol. To solve these problems, structured catalysts based on heat-conducting substrates—metal meshes, foam metals, and other supports—are well suited. Such catalysts are a complex composite material with a multi-level structure “structured metal substrate-structural oxide component-active oxide-nanoparticles of metals or alloys”, which combines the functions of a heat exchanger, a flow distributor and the catalyst itself. This work presents the results of the preparation of Pt, Rh, Pd, Ru, Ni, and Co-containing structured catalysts supported on a FeCrAl mesh support and the study of their catalytic properties.
Evaluation and Isolation of Mungbean Yellow Mosai Virus Resistant Mutants in M4 and M5 Mutant Generations of Blackgram (Vigna mungo)
Authors: Bharathi A. , Pandiyan M. , Selvaraj K.S. Vijai , Sivakumar P. , Sasikala K.
Published: December 2024

Background: The pulse known as “Blackgram” is a significant component of the Indian diet since it provides vegetable protein and balances the diet centered on cereals. Mungbean Yellow Mosaic Virus (MYMV) outbreaks on a regular basis completely destroy crops, causing farmers to suffer enormous losses. Mutation breeding can be an effective strategy for developing crops with desirable traits, such as high yield and resistance to diseases like the Mungbean Yellow Mosaic Virus (MYMV) in blackgram. Methods: This experiment was laid out to study the variability pattern of mutant population in M4 and M5 generation of blackgram variety CO 6 treated with the Gamma rays at 200 Gy, 300 Gy and 400Gy and isolation of viable mutants for Mungbean Yellow Mosaic virus resistance. Significant variability was observed among the different treatments in M4 generation and twenty MYMV resistant mutants ((PKT-BG-200Gy-P07; PKT-BG-200Gy-P24; PKT-BG-200Gy-P29; PKT-BG-200Gy-P35; PKT-BG-200Gy-P36; PKT-BG-200Gy-P45; PKT-BG-300Gy-P13; PKT-BG-300Gy-P16; PKT-BG-300Gy-P28; PKT-BG-300Gy-P33; PKT-BG-300Gy-P41; PKT-BG-300Gy-P4; PKT-BG-300Gy-P43; PKT-BG-300Gy-P76; PKT-BG-300Gy-P81; PKT-BG-300Gy-P88; PKT-BG-300Gy-P93; PKT-BG-400Gy-P15; PKT-BG-400Gy-P21; PKT-BG-400Gy-P23) were selected and evaluated in a randomized block design with three replications under natural conditions. Scoring was done by the modified scale of All India Coordinated Research Project on MuLLaRP. Result: Incidence ranged from scale 0.01 (PKT-BG-300Gy-P41and PKT-BG-300Gy-P42) to 5.30 (PKT-BG-300Gy-P28). The mutants PKT-BG-300Gy-P41 and PKT-BG-300Gy-P42 recorded with maximum yield of 1500 kg/ha and 1445kg/ha were found to be observed as high yielding and MYMV resistant lines for summer season in the Cauvery delta region.
THE NEED TO BUILD AND OPERATE A MOBILE MODULE FOR ENSURING ENERGY AUTONOMY FROM SUSTAINABLE SOURCES (MAES)
Authors:   “Henri Coandă” Air Force Academy, Braşov, Romania, GĂINĂ Liviu
Published: December 2024

The mobile module for ensuring energy autonomy from sustainable sources (MAES)
can solve the problem of power supply in remote areas, providing a flexible and sustainable
solution, especially for military applications. Based on renewable sources, MAES ensures energy
autonomy, reducing dependence on fossil fuels and minimizing environmental impact. By
integrating solar panels, batteries, and smart energy management systems, MAES can provide
electricity for a wide range of equipment and applications, from communications and surveillance
and security systems to electric vehicles. Its portability and resilience make it ideal for field
operations, and unlike generator sets, its silent operation provides thermal and acoustic masking
conditions. The adoption of the MAES can enable the armed forces to operate more efficiently,
more discreetly and in a more sustainable way.
Influence des extraits naturels du bois sur sa résistance à la pourriture
Authors: Déon Gérard , Chadenson Michèle , Hauteville Marcelle
Published: December 2024

La résistance naturelle de certains bois aux champignons destructeurs du bois est généralement attribuée à la présence de composés chimiques appelés « extraits », aux propriétés fongicides ou fongistatiques. Les extractibles de six espèces tropicales, Okan (Cylicodiscus gabunensis), Padouk (Pterocarpus soyauxii), Difou (Morus mesozygia), Mukulungu (Autranella congolensis), Afzelia (Afzelia bipindensis) et Tali (Erythrophleum guineense) ont été étudiés en relation avec leur résistance à quatre champignons destructeurs du bois, deux champignons de pourriture cubique brune (Poria sp et Poria placenta) et deux champignons de pourriture fibreuse blanche (Lentinus squarrosulus et Coriolus versicolor).Cette étude a nécessité de nouvelles méthodes mycologiques et des techniques chimiques modernes (notamment la chromatographie sur couche mince et sur colonne et la résonance magnétique nucléaire).Cette recherche a montré que la durabilité naturelle de la plupart de ces bois peut être imputée à des extractibles mais que les produits naturels responsables étaient moins efficaces que les fongicides industriels.En ce qui concerne l'aspect chimique de cette étude, nous avons redécouvert des substances naturelles déjà trouvées par d'autres auteurs. Cependant, c'est la première fois que l'on mentionne la présence de tétrahydroxy-3'-4'-7-8 flavonol dans Cylicodiscus gabunensis, de saponines dans Autranella congolensis, de dihydroxy-4', 5, méthoxy 7 isoflavone (prunétine) et de trihydroxy-4', 5, 5', méthoxy 7 isoflavone (santal) dans Pterocarpus soyauxii.
Sintomas de ansiedade e depressão em pacientes da fila de espera para cirurgia ortopédica do Hospital Universitário Walter Cantídio
Authors: Araújo Raylthon Alves , Ribeiro Henrique César Temóteo
Published: December 2024

Objetivos: determinar a incidência de sintomas de ansiedade e depressão em pacientes da fila de espera por cirurgia ortopédica do HUWC, analisar sua relevância e fatores associados. Metodologia: a Hospital Anxiety and Depression Scale (escala HADS) foi aplicada a pacientes em fila de espera há mais de 1 ano, com contato válido e que não realizaram o procedimento ainda, que aceitaram participar por meio de ligações telefônicas. Resultados: A análise dos 305 questionários completos revelou que 95 pacientes (31,1%) com probabilidade de sintomas de ansiedade e depressão, 50 pacientes (16,4%) sugestivos para ansiedade e depressão e 5 pacientes (1,64%) com pontuação para distúrbio grave. Conclusões: A Escala HADS foi previamente validada para a língua portuguesa e, por não apresentar perguntas que podem se confundir com sintomas da doença física, evidencia mais seletivamente sintomas de ansiedade e depressão nesses pacientes em espera para procedimentos cirúrgicos. Este estudo encontrou uma presença considerável de sintomas de ansiedade e depressão neste grupo de pacientes, que merecem mais atenção antes e depois do procedimento.
HOMO DEUS
Authors: Azizah Nur , Habibi Jauharul , Maria Galuh , Shuhada Muhammad Aula Rahmad
Published: December 2024

This article discusses Islam and homo deus as a new agenda for humanity’s future. This article tries to explain the reading of homo deus and the problems of humanity in the future. Likewise, regarding the issue of immortality and human happiness in the future from an Islamic perspective. This article tries to analyze the problem using the library research model in carrying out an analysis of the main problem. Humans to fight death and the problems that humans expect in the future to maintain eternity feel like a god who will live eternally in the world. It is not only immortality in the world that modern humans will achieve, but how humans live in the world and gain happiness. True happiness is difficult for humans to obtain, even though humans use the discoveries of modern science. Humans will truly find happiness if they believe in and draw closer to God. The happiness that modern humans feel is only temporary pseudo-happiness.  The immortality that modern humans desire is not directly proportional to happiness. This can be seen from the large number of people dying by suicide in various countries, the majority of which are advanced, and technology is developing rapidly, but it still cannot help their spiritual problems. Modern humans think that everything can be solved with the modern science they have discovered, even though there is God’s intervention in life in this world.
Rousseauova skrivena teorija sukoba
Authors: Stanić Damjan
Published: December 2024

U radu se tematizira pojam sukoba u političkoj teoriji Jean-Jacques Rousseaua. Premda sukob nije središnji pojam Rousseauovog opusa, u radu se brani teza da Rousseau razrađuje teoriju sukoba koja ostaje skrivena iza različitih retoričkih manevara i ostalih dijelova njegove političke misli kojima su Rousseauovi interpreti kroz povijest davali daleko veći značaj. I dok uvriježene interpretacije Rousseaua svrstavaju u tabor snažnih protivnika sukoba, ovaj rad pokušava dokazati da unutar Rousseauove političke teorije prostor za sukob postoji i da je sam sukob, nerijetko, pozitivno vrednovan. Nadalje, rad nastoji razlikovati manifestacije sukoba ovisno o kreposnosti političkog poretka, dovodeći u pitanje sukobe unutar modernih trgovinskih društava. Moderna trgovinska društva osuđena su na sukobe koji ne generiraju slobodu, niti su usmjereni ka općem dobru, već isključivo ostvarivanju materijalnih bogatstava, što dovodi do snažnih ekonomskih nejednakosti, uvelike utječući na Rousseauov vrijednosni sud o sukobu. U radu se nastoji interpretirati Rousseauov pogled na moderna trgovinska društva i poziciju sukoba u njima, stavljajući Rousseauov osobni eskapizam u vezu s njegovim teorijskim okvirom i vrijednosnim pozicijama.
Compositional Analysis and Numerical Simulation of Slagging Process on a Water-Cooled Wall of an MSW Incinerator
Authors: Chen Shanping , Jia Tianyuan , Chen Yong , Yin Lijie , Huang Jingkuan , Yuan Guoan
Published: December 2024

The mechanism of slagging in municipal solid waste incinerators is complex, and the slagging process is simultaneously affected by the composition, temperature, and flue gas flow. In this study, slag samples on a water-cooled wall were first analysed, and the key components and fusion temperatures were measured. Second, a gas-phase combustion model of the incinerator was established, and the temperature and velocity distributions of the flue gas inside the incinerator were calculated. Based on the incineration process coupled with the Discrete Phase Model, a numerical simulation model of the slagging process on the water-cooled wall of the incinerator was constructed, considering the transport and adhesion processes of ash particles. The influence of parameters such as the ash particle size and concentration on the degree of slagging on the water-cooled wall was analysed. Smaller ash particles were less likely to adhere to water-cooled walls, with approximately 2.72% of ash particles with a particle size of 10 um adhering to water-cooled walls. The proportion of ash particles with a particle size of 50 um adhering to water-cooled walls was approximately 3.0 times that of those with a particle size of 10 um. As the concentration of ash particles increased, the number of ash particles adhering to the water-cooled wall increased, and the adhesion ratio decreased. These results are of great significance for optimising the operation of incinerators and reducing slagging rates.
Numerical Simulation of Reactive Flow in Fractured Vuggy Carbonate Reservoirs Considering Hydro-Mechanical-Chemical Coupling Effects
Authors: Huang Zhao-Qin , Liu Kang , Cui Shi-Zhang , Yao Jun , Wu Yu-Shu , Sepehrnoori Kamy , Jia Cunqi
Published: December 2024

Fractured vuggy carbonate reservoirs are critically important, contributing significantly to hydrocarbon reserves and production. The presence of fractures and vugs distinctly influences fluid flow and transport within carbonate rocks, differentiating fractured vuggy carbonate reservoirs from most other geological formations. Apart from matrix carbonate rocks, isolated fractured vuggy carbonate reservoirs are still the targets for acid stimulation due to the limited contribution of isolated fractures and vugs to fluid flow capacities. This study is motivated to investigate the acid stimulation process in isolated fractured vuggy carbonate reservoirs. In this work, the classical two-scale continuum model has been extended to describe the transport and reactive dissolution processes within complex media comprising matrix, fractures, and vugs. The discrete fracture model and the Navier-Stokes equation are used to respectively characterize fluid transport in the fractures and vugs regions. Fluid interactions between different regions are governed by the extended Beavers-Joseph-Saffman (BJS) interface conditions. Dynamic boundary conditions are applied to describe the dissolution and deformation behaviors at the boundaries of vugs. In addition, Biot equations are utilized to specifically examine the mechanical responses within the poroelastic region during the acid stimulation process. A finite element model has been developed, incorporating an effective loosely coupled sequential iterative scheme for the numerical discretization and solution of the coupled hydrological-mechanical-chemical control equations. The simulation results show that the presence of fractures and vugs in carbonate formations does not perturb the equilibrium conditions necessary for wormhole formation, thereby preserving the dissolution patterns associated with a specific acid injection rate. Nevertheless, mechanical stress shows a significant influence on fracture closure behavior. The stress-induced alteration in the acid flow and dissolution structures necessitates an increased pore volume to breakthrough (PVBT) to attain comparable dissolution effects. The increment in acid breakthrough volume finally escalates both the operational costs and complexity.
TIG Double-Electrode Welding: Insights into Electrical and Geometric Parameter Effects on Process Stability and Seam Quality
Authors: Schilling Paul , Synnatzschke Pablo , Ungethüm Tim , Schmale Hans Christian
Published: December 2024

This study investigates the Tungsten Inert Gas Double-Electrode (TIG-DE) welding process. The motivation for developing the TIG-DE process lies in its potential to significantly enhance productivity and versatility, especially for additive manufacturing applications. The focus is on the interaction between electrical parameters and geometric configurations to analyze the seam outcome. It is observed that increasing current and voltage broaden weld seams, with an elliptical penetration profile that reorients significantly at higher currents. Larger electrode angles, such as 50°, produced wider weld seams, enhancing base material fusion and overall weld robustness. Optimal electrode spacing proved crucial for arc stability and molten pool control. Tight electrode spacing results in lower arc pressures and a slightly elliptical arc shape, significantly lower compared to a single electrode process with the same total current. Larger spacings lead to arc separation and multiple arc pressure maxima. High welding speeds introduce instability, causing the arc to detach from the melt pool, a phenomenon exacerbated by directional dependencies in voltage profiles. The combined effects of torch inclination angle, electrode spacing, and arc length are visualized in welding range diagrams, which depict stable and unstable parameter ranges, arc separation conditions, and scenarios of insufficient energy input. These findings highlight the need for ongoing research and pave the way for developing advanced demonstrators to refine the TIG-DE welding process, particularly for additive manufacturing applications.
Analysis on characteristics and mechanism for rock fracture in deep rock with cracks under dynamic-static coupling effect
Authors: Ge Jinjin , Jia Yongqi , Huang Wei , Yu Meilu , Ni Suqian , Xu Ying , Yu Leilei , Gu Keke
Published: December 2024

In order to study the mechanical properties and fracture mechanism of deep fractured rocks under explosive dynamic loads, a Spilt Hopkinson pressure bar (SHPB) with active confining pressure loading device was used to conduct impact compression tests on rock-like specimens containing pre-existing cracks under uniaxial and triaxial stress states. The results indicate that: 1) Without confining stress, the dynamic compressive strength of crack specimen shows a pattern of decreasing first and then increasing with increasing pre-existing crack inclination angle. However, the compressive strength of crack specimens under confining pressure shows an increasing trend with the increase of pre-existing crack inclination angle, that is, it has significant confining pressure effect and strain rate effect. 2) The confining pressure constraints cause great changes in the force on specimen, which makes it difficult for the specimen to produce tensile failure along the radial direction under the axial dynamic load, and cannot preferentially produce shear failure along the axial direction. When the crack inclination Angle of rock-like specimen is 0°and 90°, the failure of specimen showed an axial tensile pattern. When the crack inclination Angle of rock-like specimen is 30°and 60°, cracks including axial tensile cracks and shear cracks are generated on it, among which axial tensile cracks are the majority. The failure of specimen is mainly caused by the combination of tension and shear. 3)Under confining pressure, the pre-existing crack angle has a significant impact on the propagation path of specimen, that is, as the angle increases, the fractal dimension D also shows an increasing trend. Moreover, there is a positive correlation between the fractal dimension of newly expanded cracks in the specimen and its impact on compression peak stress. The research results can provide references for the design of blasting parameters in deep engineering, and have important theoretical and practical significance for preventing the occurrence of disaster events caused by rock instability.
In-Utero Nano-Titanium Dioxide Exposure Results in Sexually Dimorphic Weight Gain and Cardiovascular Function in Offspring
Authors: Hunter Russell , Gluth Teresa , Meadows Ethan , Nett Riley , Nist Victoria , Bowdridge Elizabeth
Published: December 2024

Engineered nanomaterials (ENM) are capable of crossing the placental barrier and accumulating in fetal tissue. Specifically, the ENM nano-titanium dioxide (nano-TiO2), has been shown to accumulate in placental and fetal tissue, resulting in decreased birthweight in pups. Additionally, nano-TiO2 is an established cardiac toxicant and regulator of glucose homeostasis, and exposure in-utero may lead to serious maladaptive responses in cardiac development and overall metabolism. The current study examines weight gain and cardiac function in male and female Sprague-Dawley rats exposed to nano-TiO2 or filtered air in-utero. These animals were randomly assigned to receive a grain-based or high fat diet to examine the propensity for weight gain and cardiac response as adults. Our results show a sexually dimorphic response to weight gain with male rats gaining more weight after high fat diet following in-utero nano-TiO2 exposure, and female rats gaining less weight on the high fat diet respective of exposure. Male rats exposed to nano-TiO2 in-utero had reduced ejection fraction prior to diet when compared to air controls. Female rats subjected to in-utero nano-TiO2 exposure showed a significant decrease in cardiac output following 12 weeks of high fat diet. Development of cardiovascular impairments and ultimately cardiac dysfunction and disease following in-utero exposures highlights the need for occupational and environmental monitoring of nanoparticulate exposure.
Crafting Inclusive Parenting Programs – Considerations for Deaf Families: A qualitative study.
Authors: Ikwara Asher Emmanuel , Nabagesera Rebecca , Isiko Isaac
Published: December 2024

Background
The parenting of children by deaf parents has many challenges that require a barrier-breaking approach to ensure inclusivity and accessibility. Therefore, this study explored pathways for crafting inclusive parenting programs, fostering a future where every family thrives, regardless of hearing ability.
Methods
This was a qualitative study that employed in-depth interviews with 20 deaf parents and utilized thematic content analysis. This study was carried out at events organized by the Uganda National Association of the Deaf (UNAD) at Makerere College School. Deaf parents were purposively selected from attendees at events organised by the Uganda National Association of the Deaf (UNAD) during the specified celebrations.
Results
An analysis of interviews with deaf parents identified six crucial themes for inclusive parenting programs. Language education was highlighted for strengthening family bonds. Communication and relationship building emphasized equal treatment and love for deaf children. Cultural sensitivity and education were deemed essential, as visual tools and district associations were used. Tailoring content for deaf children emphasized playful and educational materials, such as sign language videos. The utilization of technology for accessible programs and the promotion of community involvement are recognized as critical components.
Conclusion
The identified themes guide inclusive parenting program development for deaf families, emphasizing sign language, communication, cultural sensitivity, tailored content, technology, and community involvement for optimal child development.
Trends in psychiatric emergency visits: insights from France's largest psychiatric emergency department
Authors: AKKAOUI Marine AMBAR , BARRUEL David , MASSON Valérie LE , GOUREVITCH Raphael , PHAM-SCOTTEZ Alexandra
Published: December 2024

Introduction
Psychiatric emergency departments (EDs) in France have been under pressure from several factors, exacerbated by the COVID-19 pandemic. The pandemic led to an increase in psychiatric disorders, particularly anxiety and depression, with younger people and women being most affected. The aim of this study was to provide a comprehensive description of the trends in the number of visits to the largest psychiatric emergency department in France, with a particular focus on the period preceding and following the advent of COVID-19 pandemic.
Methods
This retrospective study analyzed data from 69,764 visits to the Centre Psychiatrique d'Orientation et d'Accueil (CPOA) in Paris from 2016 to 2023. Patient data, including demographics, reasons for visit, and diagnoses, were collected and analyzed to identify trends over this period.
Results
The study observed a 28.5% increase in ED visits from 2016 to 2023. The increase was primarily driven by mood and anxiety disorders, which showed significant increases of 38.6% and 75.4%, respectively. The average age of patients decreased, reflecting a younger population increasingly affected by psychiatric problems. Interestingly, despite the increase in ED visits, hospital admissions decreased by 11.9%, with a notable decrease in involuntary commitment.
Discussion
The findings highlight a paradox where increased psychiatric ED visits are not accompanied by an increase in hospital admissions. This suggests a shift toward outpatient care due to systemic factors, including reduced hospital bed availability and challenges in accessing timely outpatient services. This study underscores the need to strengthen outpatient mental health services to effectively manage the growing demand. Further research, especially multicenter studies, is recommended to validate these findings and inform policy changes.
WITHDRAWN: Isolation and Characterization of Plant Sterols from Saponified Paprika Oleoresin
Authors: Patel Vishwa
Published: December 2024

Background:Phytochemicals, natural compounds in plants, offer diverse chemical structures for drug discovery. Capsicum annuum Linn. contains bioactive compounds with therapeutic potential, including carotenoids, flavonoids, and phenols.
Objectives: This research aimed to develop a cost-effective method for isolating β-sitosterol and β-citraurin from paprika oleoresin, characterizing these compounds, and establishing chemical markers. The study utilized nuclear magnetic resonance, mass spectrometry, and high-performance liquid chromatography techniques.
Materials and Methods: Paprika oleoresin was saponified, and the sap-mass was extracted with hexane. Column chromatography was conducted with ethyl acetate: hexane, yielding fractions for analysis. Thin-layer chromatography optimization and nuclear magnetic resonance techniques were used for structural elucidation.
Results: Ethyl acetate: hexane (25:75%) proved effective for isolating compounds, reducing elution time compared to acetone: hexane. β-sitosterol and β-citraurin were obtained with 15% and 22% yields, respectively. Nuclear magnetic resonance and mass spectrometry confirmed their structures.
Conclusion: The study successfully isolated β-sitosterol and β-citraurin from paprika oleoresin, showcasing an efficient methodology. The developed approach demonstrated advantages such as reduced elution time, increased compound yield, and higher purity, contributing to the field of natural product isolation and characterization. Further applications in medicine, nutrition, and industry are promising.
Effect of oxygen nonstoichiometry on electrical parameters and thermoelectric performance of electron-doped Ca0.5Sr0.45−xPb0.05LuxMnO3−δ
Authors: Konstantinova Ekaterina I. , Litvinov Vladimir A. , Koryakov Аlexander D. , Ryzhkov Maxim A. , Pereverzev Danil I. , Leonidov Ilia A.
Published: December 2024

The present paper is focused on the analysis of the electrical conductivity (σ), Seebeck coefficient (S), and oxygen content of perovskite-type Ca0.5Sr0.45−xPb0.05LuxMnO3−δ (x = 0.05, 0.10, 0.15 and 0.20) over the temperature (T) range from 300 K to 1220 K in air and over the wide range of oxygen partial pressure in the gas phase (Po2 = ~10−4–0.8 atm) at T = 1023–1223 K. The samples have been synthesized via the citrate-nitrate method of precursor preparation. These manganites have been demonstrated to exhibit the orthorhombic structure (space group Pbnm) at room temperature. The value of δ has been determined by thermogravimetry and coulometric titration. At δ ≈ 0 near room temperature the increase in the activation energy of n-type conductivity with growing concentrations of lutetium and Mn3+ ions has been explained by the influence of the Jahn-Teller effect. A new model have been proposed to explain the dependencies of σ and S on the oxygen content and temperature. It takes into account the removal of oxygen binding the neighbouring Mn4+O6 and Mn3+O6 octahedra in addition to the reduction reaction of Mn4+ to Mn3+. It has been definitively shown that the primary charge carriers in stoichiometric and oxygen-deficient compositions are electrons localised on Mn3+ ions in Mn3+O6 octahedra. Moreover, the values of σ and S in oxygen-deficient manganites are also influenced by charge transfer between two Mn3+ ions with sixfold and fivefold oxygen coordination, resulting in the formation of hole Mn4+O6 and electron Mn2+O5 centres. The composition with x = 0.05 exhibits the highest average values of figure-of-merit in the Ca0.5Sr0.45−xPb0.05LuxMnO3−δ series within the temperature interval from 320 K to 1000 K in air.
Burger, Thorsten (2013). Social Media und Schule. Wege zum konstruktiven Umgang mit Facebook & Co. Hamburg: AOL. 120 S., 18,45 €.
Authors: Merz Redaktion
Published: December 2024

Soziale Netzwerke haben nicht erst seit gestern Einzug in das Leben von Jugendlichen gehalten. Unternehmen haben auf diese Veränderung bereits reagiert und sich die Netzwerkdienste zunutze gemacht, um Jugendliche direkt anzusprechen. Die Schule hinkt bei diesem Trend allerdings etwas hinterher. Aus dieser Intention heraus und um sinnvolle Denkanstöße für die Implementierung der sozialen Medien in der Schule zu geben, hat Thorsten Burger die Monografie Social Media und Schule verfasst. Einleitend geht es um Basiswissen: Was ist das Web 2.0? Was sind überhaupt soziale Netzwerke? Was unterscheidet Facebook von Twitter, XING und LinkedIn? Nach der Begriffsklärung folgt ein Kapitel, das sich sowohl mit den Reizen als auch mit den efahren von sozialen Netzwerken für Jugendliche befasst. Gefahren zeigen sich auch in dem Bereich der sozialen Netzwerke, in welchem Schulen diese nicht nutzen sollten, wie beispielsweise für interne Kommunikation und Lernplattformen. Andererseits gibt es auch – aus schulischer Sicht – sinnvolle Einsatzfelder hinsichtlich sozialer Netzwerke. Damit ist ein Internetauftritt der Schule innerhalb der Netzwerke gemeint. Um ein Social Media Projekt an der Schule in die Tat umzusetzen, muss ein gewisser Zusammenhalt gewährleistet werden.
Möglichkeiten, welche Instanzen miteinbezogen werden sollten und wie das Thema gemeinsam bearbeitet werden könnte, erfasst der Autor im darauffolgenden Teil der Publikation. Die Beschreibung von 92 Ideen und Einsatzmöglichkeiten in der Schule wie auch im Unterricht schließt sich nachfolgend an. Ergänzend dazu erläutert Burger unterschiedliche kritische Themen, die relevant für den Umgang mit dem Social Web sind. Neben der reinen Erklärung liefert er dabei auch Vorschläge und Hilfestellungen, wie präventiv mit den jeweiligen Themen umzugehen ist und was in Krisenfällen getan werden kann. Dies wird von Tipps und Tricks für Eltern, Lehrkräfte sowie Schülerinnen und Schüler abgerundet. Abschließend gibt der Autor ein Statement ab, wie weiterhin mit den sozialen Medien in der Schule umgegangen werden sollte und auf was man beim Umgang mit jenen Kommunikationsformen achten muss.
Damit eignet sich die Monografie für Lehrkräfte, die Interesse daran haben Social Media in ihren Unterricht einzubauen, wie auch für Medienpädagoginnen und -pädagogen, die sich mit dieser Thematik auseinandersetzen.
Elternberatung zu TV, Streaming, YouTube & Co.
Authors: Gurt Michael , Kloos Nadine
Published: December 2024

Die Herausforderungen der Medienerziehung in der Familie sind mit der zunehmenden Verbreitung digitaler Abspielwege von Bewegtbildangeboten größer geworden. Nadine Kloos und Michael Gurt von der Redaktion FLIMMO gehen darauf ein, inwieweit die vielfältigen Möglichkeiten und Herausforderungen überfordern können, welche Regelungen funktionieren und was Eltern insgesamt beachten sollten, um Kinder beim Aufwachsen in einer digitalen Umwelt voller bewegter Bilder gut zu begleiten.
Água residuária da indústria salineira: caracterização e adequação para uso como fertilizante
Authors:   , Santos Lidiane Araújo Vieira dos
Published: December 2024

O sal é um dos minerais mais consumidos no mundo. O Brasil está entre os maiores

produtores, sendo o estado do Rio Grande do Norte o maior produtor nacional. No

entanto, a indústria tem como foco a produção do NaCl, popularmente conhecido como

sal de cozinha, sendo que é possível produzir outros sais para as mais diversas finalidades,

dentre elas a agricultura. Este trabalho tem como objetivo analisar a água residuária da

indústria salineira para uso como fertilizante na agricultura. A pesquisa foi realizada na

Universidade Federal Rural do Semi-árido – UFERSA, Mossoró/RN. Inicialmente a água

residuária foi coletada nos cristalizadores de salinas em Areia Branca/RN, e no

laboratório de solos da Universidade Federal Rural do Semi-árido (UFERSA) foi

realizada a caracterização pelo processo de evaporação, onde analisavam-se amostras

dessa água a diferentes densidades. Na fase seguinte, a água residuária foi aplicada em

dois tipos de solo, sendo Cambissolo Háplico e Latossolo Vermelho Distrófico

Argissólico, em que foi possível avaliar os impactos dessa água nas características

químicas desses dois solos. Em seguida, a água residuária foi utilizada na água de

irrigação em 2 tipos de solo, sendo um mais argiloso, Cambissolo Háplico, e um mais

arenoso, Neossolo Quartzarênico, conduzidos em estufa para a cultura do melão do tipo

cantaloupe americano. Os dados obtidos foram submetidos à análise de variância e análise

de regressão. Após a caracterização foi possível obter um composto de magnésio,

potássio, enxofre e micronutrientes para aplicação na agricultura. Aplicado ao solo,

alterou as características químicas conforme o tipo de solo, aumentou a saturação de bases

no Latossolo sem provocar salinização. Por fim, ao se aplicar na cultura do meloeiro,

constatou-se incremento de magnésio para os dois solos sem conferir caráter salino ou

sódico, concentrou mais nutrientes na planta do solo arenoso, apresentou melhor

qualidade pós-colheita para o fruto do solo mais argiloso, e maior concentração de

nutrientes para o fruto do solo mais arenoso
Optimizing Home-Based Education: A Comprehensive Investigation into the Efficacy of Play-Based Approaches for Enhancing Learning among Children with Autism
Authors: Hussein Hussein
Published: December 2024

This research aims to investigate the effectiveness of play-based learning as an instructional strategy for homeschooling autistic children. The study utilises a qualitative approach to explore the experiences, perceptions, and outcomes of play-based learning interventions in the context of homeschooling. Through in-depth interviews, observations, and document analysis, the research seeks to gain a comprehensive understanding of the impact of play-based learning on the academic, social, and emotional development of autistic children within a homeschooling environment.
Physicochemical and Sensory Value of Frozen Egg Tea Drinks with Addition Carboxymethyl Cellulose (CMC)
Authors: Novia Deni , Nadira Diny , Melia Sri , Rustini Rini
Published: December 2024

Egg tea is a nutritious traditional drink popular in Minangkabau and West Sumatra and outside this area. Drinks usually consumed hot can be frozen to expand marketing, extend shelf life, and enjoy egg tea at low temperatures while maintaining its quality. This research proposed the physicochemical and sensory value of adding carboxymethyl cellulose (CMC) to frozen egg tea drinks. This research used an experimental, completely randomized design of five treatments and four replications. The CMC percentages were used from 0% to 0.8%. The parameters observed in the study were protein content, fat content, total solids, and sensory value. The results of the research showed that the addition of CMC to frozen egg tea drinks had a significant effect (p < 0.05) on protein content, fat content, total solids, and sensory tests (sensory value of texture and overall acceptability) but had no significant effect (p > 0.05) on sensory test for color, taste, and aroma. This research concludes that frozen egg tea drinks with the best CMC percentage was obtained by adding 0.6% CMC with a protein content of 3.09±0.25%, fat content of 1.12±0.02%, total solids of 12.13±0.18%, and a favorable sensory assessment.
The Role of Self-Control in Reducing Financial Threat Perception at The Onset of Covid-19 Pandemic
Authors: Octavio Danes Quirira , Kurniawan Dediek Tri , Fauzan Slamet , Adristi Fikri Irfan
Published: December 2024

In this study we attempt to understand how people manage their condition during uncertainty, such as the economic crisis induced by the Covid-19 pandemic. In short,  we analyze the relationship between self-control, good financial behavior, and financial threat perception at the onset of the Covid-19 pandemic. A web-based survey was conducted to collect the sample (n = 589) in Indonesians people. This study found that self-control not only encourages good financial behavior but also reduces financial threat perception in the middle of uncertainty. However, good financial behavior cannot mediate the effect of self-control and financial threat perception. Our study provides evidence that at the onset of a financial crisis, self-control is needed to cope with acute stress that arises from sudden uncertainty. Having good financial behavior cannot fully alleviate financial threat perception. Self-control has a direct mechanism in coping with financial threats during COVID-19.