bluuebunny/crossref_metadata_2025_split huggingface dataset:
Experimental investigations on the transformation-induced plasticity in a high tensile steel under varying thermo-mechanical loading
Authors: Behrens Bernd-Arno , Bouguecha Anas , Bonk Christian , Chugreev Alexander 
Published: August 2023

Transformation-induced plasticity (TRIP) also known as transformation plasticity (TP) occurs during solid state phase transformation in the case of applied stress and may lead to irreversible macroscopic distortions in steel components after heat treatment. Particularly, in the context of cost-efficient hot forging, where heat treatment is integrated in the process chain, various complex stress states can occur during the cooling phase due to irregular part geometry, temperature gradients and local differences in the deformation history. Varying local temperature, unsteady stress state or even sudden unloading during the transformation can have a strong impact on the resulting TRIP strain. Thus prediction of the final distortions in hot formed steel components becomes challenging. For this reason process simulation based on the finite element (FE) method offers great opportunities for the accurate virtual process design, reducing time- as well as cost-intensive trial and error cycles. However, a realistic FE-simulation requires reliable mathematical models as well as detailed thermo-mechanical material data. In order to improve the modelling of the material behavior in a hot forging and quenching process, physical simulations for particular process-related time-force-temperature profiles have been carried out on a uniaxial thermo-mechanical testing machine. The relative dilatation of the steel specimens for several applied stresses as well as for the case of sudden unloading have been recorded and evaluated for both compressive and tensile loads. It has been shown that other process parameters (e. g. heating strategy) also have a significant influence on the resulting TRIP strains.
On the applicability of JMAK-type models in predicting IN718 microstructural evolution
Authors: Stefani Nicola  , Bylya Olga , Reshetov Aleksey  , Blackwell Paul  
Published: August 2023

Nickel-based superalloys are widely used in the aerospace sector for their mechanical properties, which are directly related to the microstructural and physical properties of these materials. JMAK-type models have been applied to this class of superalloys for the prediction of microstructural evolution phenomena such as recrystallisation. However, these models often lack a clear range of applicability. The majority of the successful applications normally address rather idealised processes (relatively slow forging, simple geometry). However, the real-world production environment generally involves complex strain paths and thermal histories. Thus, there arises the question of whether the JMAK-type models can be applied to such cases. This paper’s research focus is to investigate the applicability of JMAK-type models for such processes. To do this, screw press forging of disks was used to validate the in-built JMAK-type model of Inconel 718® available in DEFORMTM. In particular, the applicability of the model was examined using a comparison between the results from simulation and from metallographic analysis. At first, the appropriateness of the JMAK outputs in describing the observed microstructures was investigated and then quantitative results were evaluated. The model’s outputs were found to be insufficient in describing the observed microstructural states and additional parameters were deemed necessary. The model’s predictions ranged from a broadly good match, for which the model could be calibrated with a proposed new methodology, to a qualitative mismatch that highlights the limits of the model’s applicability.
Simulation and measurement of temperature in high speed drawing process of steel wires
Authors: Suliga Maciej , Szota Piotr , Mróz Sebastian 
Published: August 2023

Theoretical and experimental investigations of steel wire heating up and cooling down in the high-speed drawing process have been carried out in the study. The theoretical investigation encompassed simulations of the drawing process using the Forge2011® program, in which the temperature distributions at the wire exit from the die and the temperature of wire after being wound onto the drum were determined.To verify the obtained theoretical investigation results, the experimental measurement of the temperature of wires on the drum and on the storage reel was carried out in industrial conditions.It has been demonstrated that intensive and short-duration heating of a thin, approximately 50µm-thick wire sub-surface layer up to temperatures not exceeding 1000°C occurs in the high-speed drawing process. By contrast, immediately after wire exit from the die, intensive cooling of the wire over a length of about 0.2 mm down to a temperature of below 200°C takes place.
Stability estimates for Discrete duality finite volume scheme of Heston model
Authors: Handlovicova Angela 
Published: August 2023

Tensor diffusion equation represents an important model in many fields of science. We focused our attention to the problem which arises in financial mathematics and is known as 2D Heston model. Stability estimates for discrete duality finite volume scheme for proposed model is presented. Numerical experiments using proposed method and comparing it with previous numerical scheme are included
Imágenes híbridas de tomografía por emisión de positrones y resonancia magnética en el diagnóstico de la sarcoidosis cardíaca. Experiencia piloto
Authors: Rodríguez María Ileana , Merani María Fernanda , Gallo Juan Cruz , López de Munaín María Nieves , Campisi Roxana 
Published: August 2023

Introducción: Estudios recientes sugieren combinar los hallazgos de la resonancia magnética cardíaca (RMC) y los de la tomografía por emisión de positrones (PET) para incrementar la sensibilidad del diagnóstico de la sarcoidosis cardíaca (SC).Objetivo: Evaluar el valor complementario de la RMC y la PET en el diagnóstico de la SC.Material y métodos: Entre diciembre 2018 y Julio 2020, 6 pacientes (4 hombres y 2 mujeres) fueron referidos a nuestro servicio con sospecha de SC para evaluación de inflamación del miocardio. Se efectuó un estudio de perfusión miocárdica en reposo (13N Amonio) y de 18F-Fluordesoxiglucosa (FDG)-PET para evaluar inflamación y/o fibrosis. A todos los pacientes se les realizópreviamente una RMC con gadolinio.Resultados: La edad media fue de 60 ± 9 años. El 50% de los pacientes presentaban antecedente de sarcoidosis sistémica y el otro 50% sospecha de SC aislada. Ninguno de los pacientes presentó inflamación activa del miocardio por PET. Con la combinaciónde los patrones-PET y el realce por RMC se reclasificó a los pacientes: 50% tuvo menos del 10% de probabilidad de padecer SC y el otro 50% se clasificó como posible. Ninguno de los pacientes recibió tratamiento inmunosupresor.Conclusión: En nuestra población de pacientes con sospecha de SC e inflamación, realizamos un estudio PET luego de la RMC para calcular probabilidades de padecer SC. En ausencia de un patrón oro, se sugiere que el diagnóstico de SC se base en probabilidades de acuerdo a patrones de imágenes y cuadro clínico específicos.
Cómo citar este artículo:
Rodríguez MI, Merani MF, Gallo JC, López de Munaín MN, Campisi R. Imágenes híbridas de tomografía por emisión de positrones y resonancia magnética en el diagnóstico de la sarcoidosis cardíaca. Experiencia piloto. Revis Argent Cardiol 90;2022: 392-397
http://dx.doi.org/10.7775/rac.es.v90.i6.20573
Changes in the Physical Quality of Culled Layer Chicken Meat at Different Ultrasonic Time Levels
Authors: Khoiriyah Revy Arina Roudhotul , Awwaly Khotibul Umam Al , Susilo Agus 
Published: August 2023

Aims: This study aims to determine changes in the quality of culled layer chicken meat at different ultrasonic time levels based on Cooking loss, pH, Electrical Conductivity (EC), Tenderness and Color L*a*b*. the material used is culled layer chicken meat which has been ultrasonic.
Study Design: The method used in this research is experimental laboratory using Completely Randomized Design (CRD) with 5 treatments and 4 replications.
Place and Duration of Study: Animal Product Technology Departement, Faculty of Animal Science, University of Brawijaya, Malang, Indonesia, between September-November 2022.
Methodology: Ultrasonic treatment for 10 minutes (P1), 15 minutes (P2), 20 minutes (P3), 25 minutes (P4), and 30 minutes (P5). Parameters observed were Cooking loss, pH, Electrical Conductivity (EC), Tenderness and Color. Data were analyzed using Analysis of Variance (ANOVA). If the data showed a significant difference, continued with Duncan's Multiple Range Test (DMRT).
Results: The average cooking loss value is 2.24-4.07; pH 6.21-6.40; EC 0.61-0.76; tenderness 6.9-10.8; color L* 45.79-51.62; a*6.30-6.54; b* 12.56-13.19.
Conclusion: The results showed that ultrasonic treatment with a different time in culled layer chicken meat had no significant effect (P>0.05) on the pH, EC, color but could have significant.
The Moderatoring Role of Digital Transformation Strategy on the Relationship between Intellectual Capital and Competitive Advantage in Private Universities in South Sumatra, Indonesia
Authors: Irayani  , Kamaludin  , Fachruzzaman  , Muhammad Rusdi  
Published: August 2023

Aims: The increment of Indonesian higher education institutions has intensified competition,. After the global pandemic created pressure to accelerate digital transformation, changes in the global economy have also triggered some institutions to prioritize the high quality of service for their clients.
The aims of this to investigate the moderating effect of a digital transformation strategy on the relationship between intellectual capital and competitive advantage in private universities in South Sumatra. Indeed, intellectual capital is generally an essential aspect and one of the most conducive to innovative and unrestrained competition.
Study Design: Explanatory Study.
Place and Duration of Study: Sample: 300 respondents from ten private universities took part in the survey in April 2022 to June 2022.
Methodology: The respondents from ten selecting private universities implementing the digital transformation strategy. Using the quantitative and Partial Least Square (PLS) to analyze the data and test the hypotheses.
Results: Digital Transformation Strategy (DTS) significantly impacts the competitive advantage of private universities in South Sumatra. The results mean that the higher the digital transformation strategy, the higher the competitive advantage. Digital transformation strategy as the moderator to significantly increase the effect of intellectual capital on competitive advantage.
Conclusion: The variable of intellectual capital significantly affects the competitive advantage of private universities in South Sumatra. This result means that the higher the intellectual capital with the dimensions of human capital, organizational capital and relationship capital (collaboration), the higher the competitive advantage. Furthermore, Digital transformation strategies have a quasi-moderating role (Quasi Moderator). It means the higher the digital transformation strategy, the higher the competitive advantage. The digital transformation strategy is to significantly increase the effect of intellectual capital on competitive advantage.
Genetic Diversity Analysis of Poeciliidae Fish Using RAPD-PCR Method
Authors: Mulyani Yuniar , Sundari Eulis Reni , Aidin Nisa Nur , Lesmana Astyani , Aisyah  
Published: August 2023

There are many species of Poeciliidae fish in nature. Poeciliidae is a family of freshwater fish in the order Cyprinodontiformes and are well-known aquarium fish, such as guppies, mollies, platies and swordtails. Therefore, genetic analysis on Poeciliidae is important to collect information about biodiversity, genetic classification, and study developments that occurred during evolution. One approach to determine genetic diversity in many fish species can use Random Amplification Polymorphic DNA (RAPD). This study aims to analyze the genetic diversity of Poeciliidae fish using the RAPD-PCR method. This research was conducted at the Biotechnology Laboratory, Faculty of Fisheries and Marine Sciences, Padjadjaran University, Indonesia. The samples used were guppy fish (1), platy (2), molly (3), swordtail (4), and goldfish (5). RAPD-PCR was performed using OPA-6 primer. Procedures include sampling, isolation or extraction of DNA, DNA amplification using the RAPD technique, electrophoresis, and data analysis using NTSys. Genetic diversity of Poecillidae can be analyzed using RAPD-PCR. The phylogenetics of the Poeciliidae fish samples analyzed using OPA-6 showed that the guppy fish species (sample 1) are closely related to the platy fish (fish sample 2). Furthermore, the clade branched out with sample 3 (molly fish), and the three samples are related to sample 4 (swordtail fish).
The Role of Servant Leadership in Supporting the Health Workforce during COVID 19
Authors: Abdulai Abdul-Malik 
Published: August 2023

The COVID-19 pandemic has had a profound impact on healthcare workers worldwide. These individuals have been on the front lines, risking their health and safety to care for patients. However, the emotional toll of the pandemic cannot be overlooked. Healthcare workers are not only dealing with the physical demands of their jobs but also the psychological stress and anxiety that comes with caring for patients during a global crisis.
Effective leadership is crucial in every organization, however, some organizations such as healthcare need leaders who are capable of inspiration and psychological safety. This is because health workers endure so much stress and anxiety resulting from the concerns and empathic connection with their clients.
Servant leadership, an emerging leadership style, is particularly suitable during crises, such as the recent COVID-19 pandemic. Servant leadership is a style that focuses on serving the needs of others and prioritizing their well-being. This leadership approach is particularly suited to the healthcare industry, where the well-being of patients and staff is of utmost importance. Servant leaders create a culture of psychological safety, where healthcare workers feel supported and valued. This includes ensuring that healthcare workers have access to personal protective equipment, providing emotional support and counselling services, and recognizing and appreciating their efforts.
To put the effect of servant leadership into perspective, this article highlights some effects of COVID-19 on health workers and follows up to present a view on how servant leaders would mitigate the effects on the workers. Current and future managers of the healthcare system should undertake training on servant leadership to serve the workers well for the ultimate benefit of the organization.
Sensory Stability of Maize Grains Preserved by a Triple Packing System and Biopesticides (Leaves of Lippia multiflora Moldenke and Hyptis suaveolens Poit)
Authors: Félix N’Dri Kouakou , Biego Henri Marius , Daouda Sidibe , Ysidor Konan , Coulibaly Adama 
Published: August 2023

The aim of this study was to evaluate the sensory stability of maize grains preserved in a triple bagging system with or without plant biopesticides (leaves of Lippia multiflora and Hyptis suaveolens), using a three-factor central composite design (CCD).
The first CCD factor consisted of 6 observation periods, namely: 0; 1; 4.5; 9.5; 14.5 and 18 months. The second factor was the type of treatment, which consisted of 1 control batch with polypropylene bags (WB) and 9 experimental batches, including 1 in a triple bag with no biopesticides (TS0) and eight (8) additional batches containing ratios and/or combinations of biopesticides (TS1 to TS8). Finally, the third factor concerns the combination of two biopesticides, with the percentage (%) of Lippia multiflora as the reference.
The samples were stored at room temperature for 18 months and periodically removed from storage for descriptive sensory analysis. All samples showed significant differences in sensory attributes initially and after storage. Intensity scores for negative sensory attributes such as musty and rancid aromas and acidic and astringent flavors increased during storage. After 18 months of storage, samples stored in a triple bagging system without biopesticides showed the highest intensity scores for rancid, moldy, acidic, and astringent flavors. These scores were 7.33±0.35; 6±1.67; 3.57±1.15; 4.38±1.57 respectively. However, samples preserved in triple bagging systems with biopesticides showed the lowest intensity scores for these negative attributes (4.5±0.8; 3.2±0.6; 2.18±1.73 and 1.96±0.67, respectively). In addition, the intensity scores for color, sweetness, and corn aroma decreased for all samples. Samples stored in triple bagging systems showed the smallest decrease at the end of storage for these positive attributes (5.67±1.21 for color, 5.66±1.5 for sweetness, and 5.25±1.47 for corn aroma).
Evaluation of Different Ornamental Ficus under Shadenet Conditions of Prayagraj
Authors: Nandam Bhagyasri , Singh Devi , Wesley C. John 
Published: August 2023

An experiment entitled Evaluation of different ornamental ficus under shadenet conditions of prayagraj was conducted in shadenet house, Department of Horticulture, Naini Agricultural Institute, SHUATS, Prayagraj during July-October 2022 on ficus. The experiment was conducted in Completely Randomized Design (CRD) with eight varieties replicated thrice. The varieties used were Ficus microcarpa golden, Ficus microcarpa moclame, Ficus microcarpa crassifolia, Ficus triangularis variegata, Ficus benjamina exotica, Ficus benjamina reginald, Ficus benjamina starlight, Ficus benjamina safari. The results revealed that better performance was seen in Ficus microcarpa golden in all parameters like plant height at 90 days (56.33 cm), no. of leaves at 90 days (94.43 cm), leaf length at 90 days (10.13 cm), leaf breadth at 90 days (4.53 cm), no. of primary branches at 90 days (11.23 cm), plant spread at 90 days (36.93 cm), leaf petiole length (1.6 cm).
Conservation Agriculture: A Long-term Approach towards Sustainability
Authors: Sharma Jyoti , Mahajan Amit , Menia Monika , Kumar Deepak , Bochalya Ranjeet Singh , Naveena  , Kumawat Shesh Narayan 
Published: August 2023

With the application of intensive agricultural techniques, conventional agriculture has been successful in meeting production goals but has also led to the depletion of natural resources. Sustainability in the management of the natural resource base is necessary for ongoing and expanded agricultural output to provide food security for future generations. Over a long period, the traditional tillage practice has led to the destruction of the natural resource base of the land. As a result of its inherent connection to the physical, chemical, and biological aspects of soil, it has led to a significant loss of soil and SOM, which is a crucial component of soil quality. Therefore, a suitable cropping system and land use must be implemented and adopted to ensure food security on a sustainable basis. These measures should be based on principles to prevent land degradation, protect the natural resource base, and improve food and nutritional security through crop diversification and optimal rotation. The one sustainable cropping method that may reverse soil erosion, increase crop output, and improve the socioeconomic status of small landholder farmers is conservation agriculture (CA). Conservation agriculture (CA) is the integrated management of the available natural resources such as soil, water, flora, and fauna, with certain outside inputs to maximize the effectiveness of natural resource utilization. To fulfill the objective of sustainable crop production, an alternative approach known as conservation agriculture has emerged. It represents a significant advance in the direction of sustainable agriculture. This article reviews the emerging concerns due to the continuous adoption of conventional agriculture systems, contrasting features between conventional and conservation agriculture systems, and various principles and practices in conservation agriculture. It also highlights the benefits and limitations of CA and various challenges in the adoption of CA.
Comparison between DTPA Extracting Methods for Available Zinc with Multinutrient Extractants in Vertisols and Inceptisols
Authors: Mahawar Neeta , Srivastava Sanjay , Gupta Subhash Chand , Trivedi S. K. 
Published: August 2023

Aims: To evaluate relationships between some universal soil extractants and legacy methods.
Place and Duration of Study: The study was carried out at IISS, Bhopal.
Methodology: Samples were analyzed by different methods being related; e.g. GLOSOLAN/international method or rapid methods/universal extractant and legacy methods. Measured data was obtained under the best achievable laboratory quality control conditions, for maximal transfer function reliability with the lowest RMSE (Root Mean Square Error). Out of the 60 samples in each category, a representative set (80% of the samples) was used (e.g. by linear regression analysis) for the development of the transfer function and the rest 20% of the samples were retained for validation of transfer functions. Residuals (differences) between measured and estimated soil property values were calculated. The correlation and RMSE (Root Mean Square Error) were calculated for the validation data set.
Results: The Zinc extractable DTPA and Mehlich-3 had a regression coefficient of R2= 0.92. while the extracted with AB DTPA had the regression coefficient of R2= 0.72 with DTPA, with extraction in the order of Mehlich3> AB DTPA> DTPA. Hence, Mehlich-3 and AB-DTPA both extractants can replace DTPA extractants for the determination of available micronutrients in soils in Vertisols.
Conclusion: In conclusion, different regression equations are developed between the various methods of analysis that must be used to compare the results obtained from different extraction methods.
Techniques for the Safety Use of High-Frequency Ultrasound-Guided for Facial Procedures: A Technical Note
Authors: Castilho Vivian Almeida , Furtado Gisele Rosada Donola , Barbosa Kledson Lopes , Costa Michelle Fechine , Saliba Tania Adas , Junior Orlando Adas Saliba , Penaranda Leonard Pacheco 
Published: August 2023

Background: The knowledge of facial anatomy and its correlation with ultrasonography is crucial for several professionals in clinical practice. Therefore, understanding facial anatomical structures through dynamic ultrasonography images is essential for the clinical practice of guided aesthetic facial procedures. The purpose of this study is to demystify and provide a clear understanding of high-frequency guided ultrasound in facial aesthetic procedures, using visual aids and analogies to simplify the learning process.
Study Design: The authors present a technical note outlining a protocol for the safe use of high-frequency ultrasound-guided facial procedures.
Discussion: Proper training is necessary for the use of high-frequency ultrasound in facial procedures to enhance the quality of treatments and achieve more positive outcomes. This technology allows real-time monitoring of the muscular and vascular anatomy while applying injectable products on the face, helping to prevent complications such as vascular occlusions. However, guided aesthetic procedures often face challenges due to operators' lack of experience and knowledge of correct protocols. To address this, we provide a step-by-step approach to performing ultrasound-guided procedures more efficiently. The pedagogical approach used in this manuscript, utilising a flight plan analogy, provides a clear and concise understanding of the practical application of ultrasound (US) in facial aesthetics, making the learning process simple and effective.