bluuebunny/crossref_metadata_2025_split huggingface dataset:
Chromium sorption on synthetic and natural rock minerals with emphasis on speciation behavior and kinetic model using Cr51
Authors: El-Sayed Ashraf A. 
Published: April 2024

Abstract
The presence of chromate in the aquatic environment poses toxicity and pollution to the environment. Therefore, the needs to establish methods to get rid of this species is a must. The effect of different natural rock minerals; pyrite, magnetite, pyrrhotite, and wurtzite as constituent parts of the Earth’s crust can play a major role in waste treatment. The properties of those minerals towards the behavior of chromium (sorption) were studied under the effect of changes of pH and contact time to treat the waste solution of toxic chromate. The total chromium species in the reaction system was determined using Cr51 as a simpler, faster and more accurate analytical tools. Concerning the effect of types of minerals, the synthetic ones, the results indicated that pyrrhotite and wurtzite were highly effective for the removal of chromate with almost 100 % sorption capacity as it was pH-independent, despite the presence of a degree of reductive ability of both minerals. While, it was 99 % at pH 8.5 and 28 % at pH 3 for pyrite and magnetite, respectively, which was pH dependent. The equilibrium adsorption capacities for chromium adsorption were 0.34 ± 0.15, 0.028 ± 0.01 and 4.27 ± 1.3 mg/g mineral for natural minerals pyrite, magnetite and synthetic one pyrhotite, respectively. However, it was found 117.7 ± 10.9 mg/g for synthetic mineral wurtzite. These results can be attributed to the redox power of oxide and sulfide minerals; magnetite and, pyrite used. For kinetic studies of chromium (VI) adsorption, non linear model approved that the reaction could be described based on pseudo-second-order kinetics in such simulated environmental heterogeneous systems.
A Free Market of Morals: Boycotting, Liberalism, and Property
Authors: Phemister Andrew 
Published: April 2024

The development of the practice of boycotting during the Irish Land War (1879–82), and its subsequent spread beyond Ireland to the United States, sparked outrage and concern. This was prompted by the specific intellectual challenges the practice posed for liberals on both sides of the Atlantic. In relying on a liberal defense of free speech and freedom of association, early boycotters in the 1880s were able to demonstrate the dependence of property rights on social sanction while also remaining initially impervious to legal censure. As a result, the definition and extent of property rights came under scrutiny because of the ease and simplicity by which they could be curtailed through social force. It is observed here that consequent legislation to insulate commercial wealth from boycotting’s parallel moral economy required the reinforcement and development of political justifications of the state’s right to manage economic interactions in the name of social stability and public welfare.
The paper argues that boycotting was so threatening to classical visions of liberal individualism precisely because it was so firmly grounded in individualistic premises. It observes not only that boycotters used the language of “free trade” to defend the practice but also that the practice itself contained latent political assumptions about social organization. The argument also suggests that, contrary to much current academic opinion, rights-based popular resistance can be directed toward egalitarian ends.
A rare diagnosis of Langerhans cell histiocytosis made on thyroid histology with coexisting papillary thyroid cancer and AVP deficiency
Authors: Dharmaputra R K , Piesse C M , Chaubey S , Sinha A K , Chiam H C 
Published: April 2024

Summary
A 48-year-old Asian male, presented to the hospital for an elective total thyroidectomy in the context of 6.3 cm thyroid nodule. The fine needle aspiration cytology of the nodule confirmed papillary thyroid cancer (PTC) with some atypical histiocytes. He has a history of idiopathic arginine vasopressin deficiency (AVP-D) and has been taking oral DDAVP 100 µg daily, self-adjusting the dose based on thirst and polyuria. Additionally, he also has a history of recurrent spontaneous pneumothorax. His total thyroidectomy was aborted due to significant intraoperative bleeding, and his admission was further complicated by post-operative hyponatraemic seizure. Thyroid histology revealed the diagnosis of Langerhans cell histiocytosis (LCH), and further investigation with contrast CT demonstrated multi-organ involvement of the thyroid, lungs, and bones.

Learning points

Langerhans cell histiocytosis (LCH) is a condition that can affect one or more organ systems, including the pituitary, where it can present as AVP deficiency. Strict monitoring of fluid balance, as well as serial monitoring of serum sodium, is essential in all patients with AVP-D in the perioperative setting.

Iatrogenic hyponatraemic seizure is an uncommon but serious complication of DDAVP treatment in hospitalised patients with AVP-D. DDAVP dosing must be carefully monitored.

LCH with multisystem involvement is an important mimic for metastatic conditions, and histological diagnosis is essential to guide treatment and prognosis.

Although LCH without bone marrow involvement is unlikely to increase the risk of bleeding, its effect on tissue integrity may make surgery more challenging.

BRAF-V600E mutation is an important driver mutation and a potential therapeutic target in the treatment of LCH.
Is the COVID-19 Matters for Islamic Banking Performance? A Cross-Countries Analysis
Authors: Nugrohowati Rindang Nuri Isnaini , Fakhrunnas Faaza 
Published: April 2024

Research Originality: Considering the originality of the study to have a deeper investigation on the impact of the pandemic on bank’s risk and return.Research Objectives: This study aims to identify the impact of Covid-19 on bank performance and risk levels.Research Methods: This study focuses on Islamic banks in 12 countries with the most developed financial sector during the 4th quarter of 2016 to the 1st quarter of 2022. The data analysis method in this study adopts panel data analysis with a fixed effect model.Empirical Results: The finding of the study shows that the Covid-19 pandemic resulted in a decline in the performance of Islamic banks, as seen from the ratio of return on average asset, return on equity, net profit margin, return on average asset, and return on average equity. However, an interesting finding from this research is that there is no concern about worsening bank risk levels as reflected in the nonperforming financing, Z-Score, and leverage ratio. Meanwhile, the control variables, bank size and inflation rate, also affect the performance and risk of Islamic banks.Implications: The study implies that banking practitioners and financial authority for the banking sector are required to issue some financial strategies in order to achieve and maintain a certain level of financial performance, especially during financial turmoil. JEL Classification: G20, G21, G28 How to Cite:Nugrohowati, R. N. I., & Fakhrunnas, F. (2024). The COVID-19 Matters for Islamic Banking Performance? A Cross-Countries Analysis. Etikonomi, 23(1), 201 – 218. https://doi.org/10.15408/etk.v23i1.31243.
Does a Free Trade Agreement’s Impact on the Export of Halal Food to OIC Countries Matter? Evidence from Indonesia
Authors: Muchtar Masruri , Asy’ari Hafid , Rodoni Ahmad , Amalia Euis , Hosen Muhamad Nadratuzzaman 
Published: April 2024

Research Originality: The second-largest organisation after the UN, with a population of 24.4% worldwide, makes OIC countries a potential market. This paper contributes to the existing literature on trade within them by focusing on crucial aspects of the trade agreement's impact on the halal food industry.Research Objectives: This study examines the influence of a free trade agreement (FTA) on Indonesian halal food exports.Research Methods: Using panel data from 23 countries spanning the period from 2003 to 2019, the paper employs the gravity model to assess the impact of the FTA and other variables on Indonesian halal food exports to OIC countries.Empirical Results: The findings indicate that Indonesian food exports to OIC countries with FTAs experience a notable 68% increase compared to those without such agreements. The study reveals GDP, population size, trade openness, and exchange rate positively affect food exports to OIC countries. However, trading partners' distance and entry time exhibit a negative correlation.Implications: This research holds significance for the Indonesian government as it provides valuable insights for considering the acceleration of trade agreement ratification with OIC countries. JEL Classification: F13, F47, C68How to Cite:Muchtar, M., Hafid, A., Rodoni, A., Amalia, E., & Hosen, M. N. (2024). Does a Free Trade Agreement’s Impact on the Export of Halal Food to OIC Countries Matter? Evidence from Indonesia. Etikonomi, 23(1), 147 – 166. https://doi.org/10.15408/etk.v23i1.32951.
Antecedents of Behavioral Intention to Adopt Sharia Digital Services in ZISWAF Distribution
Authors: Hariyanto Hariyanto , Ratnasari Ririn Tri , Rusgianto Sulistya , Pitchay Anwar Allah 
Published: April 2024

Research Originality: Indonesia, the fourth-most populous country after India, China, and the USA, has the largest Muslim population in the world, with a population of 231 million Muslims, or almost 13% worldwide. The number of millennial Muslim generations is around 59.415 million, or 85 percent of the total number of millennials, making it a potential market. This paper contributes to the existing behavioral intention literature by focusing on the integration of Acceptance and Use of Technology 2 (UTAUT2), Diffusion of Innovation (DOI) theory, and Perceived Security (PS) theory towards sharia digital services.Research Objectives: This research examines the antecedents of behavioral intention to adopt sharia digital services in ZISWAF distribution among the millennial Muslim generation in Indonesia.Research Methods: This study used a quantitative approach with the Structural Equation Modeling (SEM) analysis method and involved 350 respondents in Indonesia. By adopting the theories of Theory of Acceptance and Use of Technology 2 (UTAUT2), Diffusion of Innovation (DOI) theory, and Perceived Security (PS).Empirical Results: The study results show that performance expectancy, habit, price value, and compatibility have a positive and significant effect on behavioral intention to adopt sharia digital services in ZISWAF distribution. Furthermore, the price value variable is the strongest predictor of behavioral intention to adopt sharia digital services in ZISWAF distribution.Implications: This research has important meaning for the Indonesian government, ZISWAF institutions, and application providers because it provides valuable insight into considering accelerating ZISWAF distribution among the millennial Muslim generation.JEL Classification: Z12, L31How to Cite:Hariyanto., Ratnasari, R. T., Rusgianto, S., & Pitchay, A. A. (2024). Antecedents of Behavioral Intention to Adopt Sharia Digital Services in ZISWAF Distribution. Etikonomi, 23(1), 109 – 128. https://doi.org/10.15408/etk.v23i1.33892.
Digital Technology Adoption in Entrepreneurs: Are Ex-Migrant Workers More Adaptive?
Authors: Haer Jamhul , Gravitiani Evi , Putro Tetuko Rawidyo 
Published: April 2024

Research Originality: Migrant workers should have improved their skills and be more adaptive to applying digital technology. This research contribution focuses on ex-migrant workers with current careers as business owners.Research Objectives: This research reviewed the determinant factor of technological adoption on entrepreneurs with the experience of ex-migrants based on some factors, such as migrant, demographic, and business.Research Methods: The applied method of this study is - logit regression analysis. This study examined 329 business owners of 1.518 workers as surveyed by the National Workforce Survey, SAKERNAS, in Mataram, in the period 2022.Empirical Results: The research result was the lower digital technology adoption of ex-migrant business owners than the non-ex-migrant workers. The causal factor was the poor educational level of ex-migrant workers in Indonesia.Implications: The empirical implication of this study is - to determine the empowerment program of ex-migrant workers regarding the digital technology utility within the scope of entrepreneurship activities and technological transfer through the ex-migrant workers of Indonesia. JEL Classification: J6, M2, O3How to Cite:Haer, J., Gravitiani, E., & Putro, T. R. (2024). Digital Technology Adoption in Entrepreneurs: Are Ex-Migrant Workers More Adaptive?. Etikonomi, 23(1), 1 – 10. https://doi.org/10.15408/etk.v23i1.34681.
Неакадемічний студентський досвід в умовах постмодернізму
Authors: Pavlov Roman A. , Pavlova Tetiana S. 
Published: April 2024

Мета дослідження: Визначення напрямів удосконалення неакадемічного студентського досвіду в умовах трансформації вищої освіти під впливом постмодерністських тенденцій та особливостей студентів нового покоління.
Дизайн / Метод / Підхід дослідження: У роботі застосовано комбінацію гіпотетико-дедуктивного та індуктивного методів дослідження для всебічного вивчення неакадемічного студентського досвіду. У межах гіпотетико-дедуктивного підходу автори спираються на наявні теоретичні положення та результати попередніх досліджень, формулюючи на їхній основі припущення щодо сутності неакадемічного досвіду, його структури та чинників впливу. Індуктивний метод використовується для узагальнення і систематизації інформації, отриманої в ході огляду наукової літератури.
Результати дослідження: Виявлено, що неакадемічний студентський досвід відіграє важливу роль у сприйнятті студентами закладів вищої освіти та якості навчання. Він охоплює різні аспекти студентського життя, не пов’язані безпосередньо з навчанням, і формується здебільшого через надані університетом студентські послуги. На неакадемічний досвід впливають такі чинники як цілі та очікування студентів, інтеграція в університетське життя, індивідуальні характеристики, минулий досвід і комунікація з персоналом закладу вищої освіти. Наголошується на важливості адаптації підходів до формування даного досвіду з урахуванням особливостей сучасних студентів покоління Z.
Теоретична цінність дослідження: У роботі систематизовано теоретичні підходи до розуміння неакадемічного студентського досвіду, визначено його ключові складові та фактори впливу. Результати дослідження роблять внесок у вивчення трансформації вищої освіти в умовах постмодернізму.
Практична цінність дослідження: Розуміння особливостей формування неакадемічного студентського досвіду дасть змогу закладам вищої освіти вдосконалювати стратегії із залучення та утримання студентів, підвищувати їхню задоволеність і лояльність.
Оригінальність / Цінність дослідження: Запропоновано комплексний погляд на неакадемічний студентський досвід з урахуванням сучасних трендів у вищій освіті та характеристик нового покоління студентів, що становить цінність як для дослідників, так і для управлінців у сфері вищої освіти.
Обмеження дослідження / Майбутні дослідження: Перспективним є подальше вивчення впливу цифрових навичок студентів на сприйняття ними якості університетських онлайн-послуг у контексті поліпшення неакадемічного досвіду.
Тип статті: Теоретична
JEL Classification: I23, I21, M10, M31, Z13
Methods for screening and evaluation of antimicrobial activity: A review of protocols, advantages, and limitations
Authors: Hossain Tanim Jabid 
Published: April 2024

AbstractInfectious diseases pose a formidable global challenge, compounded by the emergence of antimicrobial resistance. Consequently, researchers are actively exploring novel antimicrobial compounds as potential solutions. This endeavor underscores the pivotal role of methods employed for screening and evaluating antimicrobial activity—a critical step in discovery and characterization of antimicrobial agents. While traditional techniques such as well-diffusion, disk-diffusion, and broth-dilution are commonly utilized in antimicrobial assays, they may encounter limitations concerning reproducibility and speed. Additionally, a diverse array of antimicrobial assays including cross-streaking, poisoned-food, co-culture, time-kill kinetics, resazurin assay, bioautography, etc., are routinely employed in antimicrobial evaluations. Advanced techniques such as flow-cytometry, impedance analysis, and bioluminescent technique may offer rapid and sensitive results, providing deeper insights into the impact of antimicrobials on cellular integrity. However, their higher cost and limited accessibility in certain laboratory settings may present challenges. This article provides a comprehensive overview of assays designed to characterize antimicrobial activity, elucidating their underlying principles, protocols, advantages, and limitations. The primary objective is to enhance understanding of the methodologies designed for evaluating antimicrobial agents in our relentless battle against infectious diseases. By selecting the appropriate antimicrobial testing method, researchers can discern suitable conditions and streamline the identification of effective antimicrobial agents.
Highly complex materials processes as understood by phase-field simulations: Additive manufacturing, bainitic transformation in steel and high-temperature creep of superalloys
Authors: Steinbach Ingo , Uddagiri Murali , Salama Hesham , Ali Muhammad Adil , Shchyglo Oleg 
Published: April 2024

Abstract
Recent breakthroughs resolving open questions in materials science by phase-field simulations are reported. They relate to solidification structure formation in additive manufacturing, carbon redistribution during bainitic transformation, and the onset of damage during high-temperature creep of superalloys. The first example deals with the balance between epitaxial growth and nucleation in solidification. The second relates to the controversy regarding diffusion control and dominance of massive transformation in bainite transformation. The third relates to directional coarsening (rafting) in superalloys as a diffusion-controlled phase transformation: loss of coherency of precipitates marks the onset of damage associated with rotation of the crystal lattice and topological inversion. Technical details of the phase-field method are reviewed as necessary, and limitations of the approach are discussed.

Graphical abstract
Developing A Secure Cryptosystem with Rainbow Vertex Antimagic Coloring of Cycle Graph
Authors: Marsidi Marsidi 
Published: April 2024

An edge labeling of graph G is a function g from the edge set of graph G to the first natural numbers up to the number of the edge set. Graph G admits a rainbow vertex antimagic coloring if, for any two vertices, there is a path with different colors of all internal vertices. The vertex color of graph G is assigned by vertex weight. The vertex weight of graph G is obtained by summing all edge labels that incident with that vertex. The rainbow vertex antimagic connection number of graph G, denoted by rvac(G) is the smallest number of different colors induced by rainbow vertex antimagic coloring. In this research, we determine the upper bound of the rainbow vertex antimagic connection number (rvac) on a cycle graph (Cn) and create a secured cryptosystem using a modified Affine Cipher based on rainbow vertex antimagic coloring.
Effect of streptococcal arginine deiminase on the function of CD4<sup>+</sup> and CD8<sup>+</sup>T lymphocytes
Authors: Starikova E. A. , Mammedova J. T. , Ozhiganova A. , Lebedeva A. M. , Leveshko T. A. , Burova L. A. , Kudryavtsev I. V. 
Published: April 2024

Arginine metabolism plays an important role in regulating the functions of immune cells in mammals. Pathogenic microbes use the mechanism of arginine depletion to suppress the immune response during infection. Arginine deiminase is a microbial arginine-hydrolyzing enzyme important for survival at low pH in the focus of infection, or in phagolysosomes, as well as under low-glucose conditions. The effect of bacterial arginine deiminase on the functions of adaptive immune cells remains poorly understood. The aim of our study was to evaluate the effect of streptococcal arginine deiminase on the proliferation and autophagy of CD4+ and CD8+ human peripheral blood T lymphocytes.The enzyme effects were studied with supernates of ultrasonic lysates from parental Streptococcus pyogenes M49-16, and its isogenic mutant with inactivated arcA gene (Streptococcus pyogenes M49-16delarcA). The study was performed with blood samples of healthy donors. The fraction of mononuclear leukocytes was isolated by centrifugation in a Ficoll density gradient. To evaluate proliferation levels, a method based on the staining of intracellular proteins with vital fluorescent dye carboxyfluorescein succinimidyl ester (CFSE) was used. The level of autophagy was studied using the fluorescent Lysotracker Green DND-26 dye. To analyze the proliferation and autophagy of T helper cells (CD3+CD4+) and cytotoxic T lymphocytes (CD3+CD4-), the obtained cell suspensions were stained with antibodies against CD4, CD45RA, and CD3. The proportion of necrotic cells was determined by staining with a fluorescent DNA-binding DAPI dye. The normality of the distribution was assessed by Shapiro–Wilk test. The data were analyzed using Kruskal–Wallis criterion, followed by Mann–Whitney criterion for pairwise comparisons and expressed as median and interquartile ranges (Q0.25-Q0.75).When comparing the effects of supernatants from the parental and mutant streptococcal strains, which differed in expression of arginine deiminase gene, we have shown that the bacterial enzyme had no effect on the functions of inactive lymphocytes. However, streptococcal arginine deiminase completely suppressed proliferation of CD4+ and CD8+T lymphocytes stimulated with anti-CD2/CD3/CD28 antibodies. These effects were accompanied by a decrease in the autophagy levels. At the same time, arginine deiminase did not exert cytotoxic effects upon lymphocytes. L-arginine applied at the doses exceeding physiological levels caused restoration of the cellular functions. There were no differences between the studied parameters of CD4+ and CD8+T lymphocyte subsets.The obtained data show that the antiproliferative effect of arginine demimnase may be associated with ability of the enzyme to inhibit autophagy and confirm an opportunity of the bacterial enzyme to suppress host adaptive immune responses.