bluuebunny/crossref_metadata_2025 huggingface dataset:
Loss of mutualistic interactions loosens restrictions on evolutionary history in legume plant communities
Authors: Simonsen Anna , Dinnage Russell
Published: July 2023

Mutualistic interactions are increasingly recognized as playing
important roles in community assembly. We hypothesized that mutualisms
can influence the accumulation of evolutionary history within
communities through indirect interactions, which we investigated by
quantifying the impact of mutualism gains and losses on phylogenetic
structure in the Fabaceae family. Analyzing global distribution data, we
find that legumes lacking mutualistic interactions exhibit reduced
phylogenetic clustering, resulting in higher phylogenetic diversity in
regions richer in non-mutualistic legumes. Moreover, the probability of
a plant species being introduced to a new range is negatively related to
phylogenetic distance to its nearest native relative, but this effect is
weaker for species without mutualistic interactions. These findings
highlight the significant role of mutualism in restricting the local
distribution of evolutionary history at a global scale. Our study
advances community assembly theory and underscores the importance of
considering mutualism in the conservation and restoration of
phylogenetic diversity.
Concomitant hypofibrinogenemia and factor XI deficiency as rare cause of bleeding during urgent dentistry: case report and short review of the literature
Authors:   Coagumed Coagulation Center, Berlin, Germany, Sucker Christoph , Geisen Christof ,   Institute of Transfusion Medicine and Immunohaematology, German Red Cross Blood Transfusion Service Baden-Württemberg-Hessen gGmbH, Goethe University Hospital Frankfurt/Main, Frankfurt am Main, Germany, Litmathe Jens ,   Emergency Department, Wesel Protestant Medical Center, Wesel, Germany
Published: July 2023

Hypofibrinogenemia and Factor XI deficiency are rare defects of hemostasis, potentially leading to spontaneous bleeding manifestations and increased bleeding risk during surgery, dentistry, and interventions. Due to the different mode of inheritance, the concomitance of both defects is extremely rare and the clinical management of combined hypofibrinogenemia and factor XI deficiency is not standardized. Here, we report a rare case of concomitant genetically determined hypofibrinogenemia and factor XI deficiency as a cause of increased spontaneous bleeding and bleeding complications during dentistry. The diagnostic procedure including screening assays, single clotting factor determinations, genetic analyses, and also use of thrombin generation assays (TGA) are described. Also, we present our considerations regarding the development of an adequate prophylaxis of bleeding with fibrinogen concentrate in this case. The literature regarding the issue is briefly discussed.
Problems in the Family and the Urgency of Family Counseling in Today
Authors: Suhartiwi Suhartiwi , Neviyarni Neviyarni , Syukur Yarmis
Published: July 2023

Problems in the family become an issue that is always discussed in the development of psychological science and counseling. The family as a place to protect, be compassionate, build themselves up for its members often causes many problems. The problem is related to interactions between family members so that it causes conflict. This paper was written using the literature review method. The findings show that interactions that occur within families vary and are prone to conflict. So it is very important for family counseling to handle and develop a family to become a healthy and harmonious family.
Achievement Motivation and Academic Procrastination: a Correlation Studies
Authors: Novirson Rizki , Lubis Khadijah
Published: July 2023

This research is based on the phenomenon that found in school, there are many students who carry out academic procrastination. This study examines the correlation about achievement motivation and academic procrastination behavior in students. Correlational design is a type of research that is used, collecting data from 270 students using with questionnaire. Finally will be seen an overview of the level of achievement motivation and academic procrastination, and the relationship of both.
The Effectiveness of Assertiveness Training Group Format to Improve Students' Interpersonal Relationship Skills
Authors: Lubis Khadijah
Published: July 2023

Interpersonal relationship skills are the ability of individuals to build relationships with other people. This research is motivated by the discovery of interpersonal relationship problems among students, such as being unable to refuse invitations from friends, isolated students, muttering, aggressive, and a lack of care for others. This study aims to test the effectiveness of assertiveness group format training to improve students' interpersonal relationship skills. This study used a quasi-experimental method with the non-equivalent control group design. The subjects of this study were students of class VIII SMP who were selected by purposive sampling technique. The instrument used was a scale of interpersonal skills with a validity of 0.535 and reliability of 0.881. Data analysis used the wilcoxon signed-rank test and kolmogorov smirnov. The results showed that the use of assertiveness training group format was effective in improving students' interpersonal relationship skills.
Teaching materials for Spiritual Life Skills in Counseling Services through the EDUDA Application,
Authors: Putri Utari Dwi , Dalimunthe Raudah Zaimah
Published: July 2023

The research background of students' low spiritual life skills and the absence of online teaching materials for practicing spiritual life skills. The research objective is to produce online teaching materials for spiritual life skills that are effective in implementing student counseling services. The development research design was carried out using the ADDIE model. The research subjects of the seventh-grade students of Tunas SMP Swasta Tunas Karya Batangkuis for the 2019/2020 academic year with total of 30 students. The instruments used were questionnaires and interviews, worksheets for practicing spiritual skills. Data analysis techniques were qualitative analysis and the percentage of data analysis. Based on the validation by material experts, it was 75.71% for the category "Valid and the media experts were 86.42% for the" Valid "category. The effectiveness of teaching materials is obtained from the results of the students' practice scores of the students' training showed that 27 people had passed with an average percentage of 85% and achieved very good classification. This study stated that spiritual life skills teaching material is effective for use in counseling services to students.
Efforts to Increase the Responsibility of Junior High School Students with Classical Guidance Service Tools
Authors: Insaf Muharrifah Zorifah
Published: July 2023

The low sense of student responsibility is indicated by the attitude of students who do not submit assignments on time and are unable to complete assignments according to the instructions. This low sense of responsibility hurts the learning process and student outcomes. One of the efforts that can be made to overcome this problem is using classical guidance services for students. This study aims to develop and test the acceptability and effectiveness of classical guidance service tools to increase the responsibility of junior high school students. This research belongs to the development research using the 4D model (Define, Design, Develop, and Disseminate). Collecting data in the study was carried out using observation, interviews, and questionnaires. The instruments used are observation guidelines, product content validity instruments, and responsibility questionnaires. The data obtained in the study were then analyzed using the CVR (Content Validity Ratio) and CVI (Content Validity Index) formulas and t-tests. The results of the CVR analysis showed that all of the questionnaire item statements were accepted and obtained a CVI score of 1 with a very good category. Thus, the classical guidance service device complied with the acceptance requirements. The effectiveness of the classical guidance service device was tested on 35 junior high school students using the Pretest-Posttest Control Group Design experimental design. The results of the t-test formula test obtained a probability value or Sig. (2-tailed) of 0.000, this probability value is smaller than the 0.05 significance level. These results then show that using classical guidance service tools effectively increases the responsibility of junior high school students.
Why Are They Here? The Intentions of Brazilian Exhibitor at Business Fairs
Authors: Locatelli Débora Regina Schneider , Mourão Paulo Jorge Reis
Published: July 2023

O objetivo é investigar as motivações que levam as empresas a participar de feiras de negócios. Com base na literatura, três hipóteses foram formuladas. Os procedimentos metodológicos tiveram abordagem qualitativa, foram realizadas entrevistas. A população eram empresas do setor metalúrgico que participam como expositores de feiras internacionais de negócios e de renome em seus segmentos. Após o tratamento dos dados, foi realizada uma análise de conteúdo utilizando a Interface de Software para Análise Multidimensional de Textos e Questionários (IRAMUTEQ). Esta foi estruturada em três etapas: análise da frequência de termos relevantes, análise da associação de termos relevantes e estruturação diferenciada de discursos. H2 e H3 foram aprovadas e H1 foi refutada.
Aktivitas Antimikroba Jamur Tiram Putih (Pleurotus ostreatus AL1) terhadap Candida albicans dan Escherichia coli
Authors: Mustary Mardiyah , Alhidayatullah Alhidayatullah , Nurhalisa Nurhalisa
Published: July 2023

Infection is one of the many health problems that over time develop. The study entitled "white oyster fungal activity (Pleurotus ostreatus AL1) against the Candida albicans and Escherichia coli." One plant that can be used as a traditional medicine is the white oyster mushroom (Pleurotus ostreatus AL1). Aimed at identifying antimicrobial activity in the fungi and pathogenic bacteria. Isolates are made by insulating the oyster mold by medium ASK, and resistance tests are conducted using diffusion methods. This study suggests that white oyster mushrooms (Pleurotus ostreatus AL1) toward Escherichia coli. Studies show that white oyster mushrooms have a resistance test against Escherichia coli but have no resistance activity against the Candida albicans. The unbounded activity of white oyster mushrooms against E. coli media to create a clear zone with an average diameter to replicas a, b, c, and d, respectively, is 16. 5, 15. 5, 17, and 15. 5 mm.AbstrakInfeksi merupakan salah satu masalah dalam bidang kesehatan yang dari waktu ke waktu terus berkembang. Penelitian dengan judul “Aktivitas Antimikroba Jamur Tiram Putih (Pleurotus ostreatus AL1) terhadap Candida albicans dan Escherichia coli”. Salah satu makhluk hidup yang dapat digunakan sebagai obat tradisional adalah Jamur Tiram Putih (Pleurotus ostreatus AL1). Yang bertujuan untuk mengetahui adanya aktivitas antimikroba terhadap jamur dan bakteri patogen. Proses isolat dilakukan dengan mengisolat jamur tiram dengan medium ASK, dilakukan uji daya hambat menggunakan metode difusi. Hasil penelitian ini menunjukkan bahwa Jamur Tiram Putih (Pleurotus ostreatus AL1) terhadap Escherichia coli. Hasil penelitian menunjukkan bahwa jamur tiram putih memiliki uji daya hambat terhadapa Escherichia coli namun tidak memilki aktivitas daya hambat terhadap Candida albicans. Aktivitas daya hambat jamur tiram putih terhadap E. coli pada media agar cawan Na menghasilkan zona bening dengan diameter rata- rata pada replika A, B, C, dan  D, masing- masing adalah 16. 5; 15. 5; 17; dan 15. 5 mm
The effects of economic growth, energy consumption and financial development on CO2 emissions in Tunisia: ARDL bounds testing approach to cointegration
Authors: Chouaïbi Néjib , Guenichi Hassan
Published: July 2023

This study aims to investigate the impacts of economic growth, energy consumption, and financial development on carbon emissions within the framework of the environmental Kuznets curve hypothesis for Tunisa from 1970 to 2018. The long-run relationship is examined by applying the autoregressive distributed lag (ARDL) bounds testing procedure to cointegration and error correction analysis. The empirical findings show a positive monotonic relationship between real GDP and carbon dioxide emissions (CO2), which means that Tunisia has not yet reached the required level of per capita income to get an inverted U-shaped EKC. The results also reveal a positive impact on both the energy consumption and the financial development, suggesting that theses control variables lead to environmental damages by polluting the atmosphere in the long run. At the same time, the paper explores causal links between the variables by referring to the Toda and Yamamoto (1995) Causality Test, and it concludes that financial development and energy consumption play a vital role in the Tunisian economy to achieve sustainable environmental development. Therefore, policy makers should not only focus on economic development, but also undertake a solid green finance regulation to assume an active environmentally friendly processes, and the energy matrix should be transformed in favor of renewable energy to cope with environmental degradation and to ensure sustainable development in Tunisia.
Medium- and Long-Term Prediction of Polar Motion Using Weighted Least Squares Extrapolation and Vector Autoregressive Modeling
Authors: Lei Yu , Zhao Danning , Guo Min
Published: July 2023

This article presents the application of weighted least squares (WLS) extrapolation and vector autoregressive (VAR) modeling in polar motion prediction. A piecewise weighting function is developed for the least squares (LS) adjustment in consideration of the effect of intervals between observation and prediction epochs on WLS extrapolation. Furthermore, the VAR technique is used to simultaneously model and predict the residuals of x
p, y
p pole coordinates for WLS misfit. The simultaneous predictions of x
p, y
p pole coordinates are subsequently computed by the combination of WLS extrapolation of harmonic models for the linear trend, Chandler and annual wobbles, and VAR stochastic prediction of the residuals (WLS+VAR). The 365-day-ahead x
p, y
p predictions are compared with those generated by LS extrapolation+univariate AR prediction and LS extrapolation+VAR modeling. It is shown that the x
p, y
p predictions based on WLS+VAR taking into consideration both the interval effect and correlation between x
p and y
p outperform those generated by two others. The accuracies of the x
p predictions are 13.97 mas, 18.47 mas, and 20.52 mas, respectively for the 150-, 270-, and 365-day horizon in terms of the mean absolute error statistics, 36%, 24.8%, and 33.5% higher than LS+AR, respectively. For the y
p predictions, the 150-, 270-, and 365-day accuracies are 15.41 mas, 21.17 mas, and 21.82 mas respectively, 27.4%, 11.9%, and 21.8% higher than LS+AR respectively. Moreover, the absolute differences of the WLS+VAR predictions and observations are smaller than the differences from LS+VAR and LS+AR, which is practically important to practical and scientific users, although the improvement in accuracies is no more than 10% relative to LS+VAR. The further comparison with the predictions submitted to the 1st Earth Orientation Parameters Prediction Comparison Campaign (1st EOP PCC) shows that while the accuracy of the predictions within 30 days is comparable with that by the most accurate prediction techniques including neural networks and LS+AR participating in the campaign for x
p, y
p pole coordinates, the accuracy of the predictions up to 365 days into the future are better than accuracies by the other techniques except best LS+AR used in the EOP PCC. It is therefore concluded that the medium- and long-term prediction accuracy of polar motion can be improved by modeling x
p, y
p pole coordinates together.
The role of digital companies in the transformation of the Russian economic model
Authors: KOGDENKO Vera G.
Published: July 2023

Subject. The article deals with the transformation of the Russian economic model.
Objectives. The purpose is to test the hypothesis about the impact of companies generating high added value (digital companies) on the economic model of the country.
Methods. The study rests on general scientific principles and research methods, like abstraction, generalization of approaches of domestic and foreign authors to industrial policy, and the economic analysis.
Results. I analyzed characteristic features of companies operating in industries with high and low generated added value, offered a five-stage methodology for assessing the key characteristics of companies. At the first stage, the production function of companies is investigated to determine the impact of the return on the resources involved and the presence of a multiplicative effect on the scale of the country's economy. At the second stage, the indicators of volatility, growth, marginality are analyzed to determine the impact of these characteristics on the dynamics of GDP. At the third stage, indicators of investment and innovation activity are calculated to assess their impact on the level of investment in the economy. The fourth stage is devoted to the analysis of the financial activities of companies, including their ability to attract external equity and debt capital, and to the evaluation of the distribution policy, which enables to conclude on company’s ability to attract resources for development. At the fifth stage, the capitalization rate and expected rate of profit growth of companies are evaluated to assess their investment attractiveness.
Conclusions. The calculations performed on the basis of financial and non-financial statements of PAO MMC Norilsk Nickel and Yandex for 2022 lead to the conclusion that companies in industries generating high added value (digital companies) provide a multiplier effect, contribute to accelerating economic growth, increasing competitiveness, and improving the country's economic model. However, for the sustainable development of these companies, an industrial policy is needed to support and stimulate them.
Qualimetric accounting for agricultural products, land and biological assets
Authors: ALBOROV Rolan A. , KOZMENKOVA Svetlana V. , DZHIKIYA Meri K.
Published: July 2023

Subject. This article discusses the issues of improving the accounting of qualitative characteristics of land and biological assets, first of all, as well as agricultural products from the point of view of the qualimetric approach in accounting.
Objectives. The article aims to highlight the organizational, methodological and technical aspects of the assessment and quantitative accounting of the quality of land and biological assets, as well as agricultural products, and offer recommendations for assessing and reflecting qualimetric indicators of qualitative assessment of production resources and agricultural products on accounts.
Methods. For the study, we used analysis and synthesis, modeling, and abstraction.
Results. The article presents the author-developed organizational and methodological recommendations for calculating qualimetric indicators for quantitative assessment of the quality of land and biological assets, as well as agricultural products, and proposes methods for determining the fair value of these assets and reflecting the corresponding transactions on accounts.
Conclusions and Relevance. The study of theoretical provisions and organizational and methodological aspects of accounting reveals the need for the introduction of qualimetric assessment and quantitative accounting of the quality of resources and products in agriculture. The results of the study can be applied in the theory and practice of accounting for resources and agricultural products, based on their quality and utility.
Diagnosis of insolvency signs and pre-crisis condition in commercial organizations: Developing organizational and methodological approaches
Authors: PRONYAEVA Lyudmila I. , FEDOTENKOVA Ol'ga A. , PAVLOVA Anna V.
Published: July 2023

Subject. This article discusses the problems of financial stability of the Russian economy.
Objectives. The article aims to develop a methodology for multivariate analysis of the financial condition of the organization.
Methods. For the study, we used the method of expert assessment.
Results. The article presents the results of the analysis of the proportion of unprofitable organizations by type of economic activity. It identifies the main causes of bankruptcy and builds a special matrix that helps determine the feasibility of implementing anti-crisis measures within the organization.
Conclusions. The use of the results of the study will contribute to the optimization of the financial and economic activities of business structures.
Lean production at agro-industrial enterprises: Efficiency and limitations in present-day developments
Authors: GOLOVKO Mariya V. , ANTSIBOR Anna V.
Published: July 2023

Subject. This article discusses the issues of optimization of production processes and the development of agriculture in Russia in the context of international sanctions. Objectives. The article aims to find relevant tools and methods for implementing the concept of lean manufacturing in the activities of Russian agro-industrial enterprises. Methods. For the study, we used the general scientific research methods. Results. The article presents calculations to reduce the labor intensity of production processes by reducing the duration of equipment changeover and determines the economic effect. The article also reveals restrictions on the implementation of lean manufacturing projects due to the current foreign economic situation. Conclusions. The results of the study can be used to develop projects for the development of agricultural engineering and the agro-industrial complex as a whole.
Developing a Model of Holistic Environmental Education including Teacher Training for Eco-Schools in Tamil Nadu
Authors: Anbuselvam Anuviya
Published: July 2023

A holistic and place-based environmental education program that can be scaled across the state is the need of the hour (Batra et al., 2022) in the state of Tamil Nadu, India as stakeholders devise various responses to climate change (Sundararaju, 2022). Pitchandikulam Forest is a 70-acre restored indigenous forest. Attached to this is an eponymous environmental organisation that works on research and development of the forest.
A Study to Assess the Acceptance of Doctors toward the Practice of Reusing of Cardiac Disposables in Coronary Angioplasty in a Tertiary Care Hospital
Authors: Rani Pushpi , Irshad Humera , Rashid Sajad , Nimma Satyanarayana
Published: July 2023

Objectives:

Health-care providers are expected to deliver quality patient care cost-effectively, especially in developing countries. Medical devices labeled “single use only” should ideally not be reused but, can be considered for reuse due to their higher cost. Stringently regulated reprocessing of the single-use device provides an opportunity to do so along with the potential to have a favorable impact on environmental waste. The aim of this study is to assess the acceptance of doctors toward the practice of reusing cardiac disposables in coronary angioplasty.

Materials and Methods:

An open-ended and self-designed questionnaire was prepared and was standardized by a panel of cardiologists to assess doctors’ acceptance toward reusing cardiac disposable in coronary angioplasty. The cardiologists were interviewed individually, and the responses were analyzed.

Results:

The cardiologists were aware that the angioplasty disposables were being reused. The majority were satisfied with the sterilization of disposables and were of the opinion that it was safe for the patients. Cardiac catheters were reused 5–6 times while the balloons were reused 3–4 times. An increase in procedure time of 10–15 min was observed in 30% of the patients. There was an increase, in contrast, volume of about 40–50 mL with reused cardiac catheters and balloons which was observed in 15% of the patients. Defect in the physical integrity of the catheter, that is, tip abrasion/microfracture was observed in 1% of the patients. Deflation dysfunction of the balloon during the procedure was observed in 2% of the patients, while breakage of the balloon from the shaft and entanglement of the balloon was observed in 1% of the patients. Balloon rupture during angioplasty was observed in 8% of the patients. Around 1.5% of the patients undergoing angioplasty with reused disposables were presented with infections. Thrombosis was observed in 3% of the patients with reused disposables, and it was the most common adverse event post-angioplasty. There were cases where the patients were sent for emergency surgery/coronary artery bypass graft surgery due to balloon entanglement and about 0.1% of the patients were found to have such a complication.

Conclusion:

Cardiac disposables can be safely reused by health-care professionals, especially in developing nations due to their budget constraints, provided it is reused no more than 3–5 times and efficient methods of sterilization are observed.
Influence of Problem Based Learning Model on Students’ Mathematical Reasoning Ability
Authors: Gunawan Heri , Rifat Mohamad , Sayu Silvia
Published: July 2023

The study aimed to determine the effect of problem-based learning models on students' mathematical reasoning abilities. The study used an experimental method with a quasi-experimental design and a posttest-only control design. The population was all classes in VIII grade at MTs Negeri 3 Mempawah in the 2019/2020 school year. The samples were students of VIII C and VIII A grades and were drawn using simple random sampling. Data collection techniques and tools were measurements that used a essay test contained indicators of mathematical reasoning abilities. After being tested in the two samples, data analysis was then carried out to test the hypothesis. Before testing the hypothesis, first, a prerequisite test was carried out, namely the normality test. Because the data are normally distributed, to test  the hypothesis we used the t-test. It was obtained that tcount = 11.15 and ttable = 1.99 with α = 0.05. Because of the value of tcount> ttable, it can be concluded that the problem-based learning model affects students' mathematical reasoning abilities. Keywords: Problem based Learning, Mathematic, Reasoning Ability
THE EFFECT OF GEOGEBRA-AIDED PROBLEM BASED INSTRUCTION MODEL AND MATHEMATICAL DISPOSITION ON PROBLEM SOLVING ABILITY
Authors: Zulaiha Siti
Published: July 2023

This research aims to determine: (1) The effect of PBI in GeoGebra Assisted Learning through problem based solving. (2) Difference of ability for solving between student’s taught by PBI in Geogebra Assisted Learning with Direct Instruction. (3) Difference of ability for solving from mathematical disposition. (4) The interaction between Learning Model and mathematical disposition. The research method that used is factorial design. The study sample in this study were students of class XI Kep A and XI Kep B. Technique of analyze data used is two way anova. From the results and analysis  of data obtained the study are as follow: The effect of PBI in Geogebra Assisted Learning through problem based solving with the medium category then the result of effect size is 0,5886, there is difference significance between problem based solving with PBI in Geogebra Assisted Learning and Direct Instruction with significance result is 0,001, there is difference significance between student’s learning in high mathematical disposition and low with the significance result is 0,000, and there is significance interaction between Learning Method and Student’s mathematical disposition. Keywords: Problem Based Instruction, Geogebra Assisted Learning, mathematical disposiion, Problem  Solving
Neighbor List Artifacts in Molecular Dynamics Simulations
Authors: KIM HYUNTAE , Fábián Balázs , Hummer Gerhard
Published: July 2023

Molecular dynamics (MD) simulations are widely used in biophysical research. To aid non-expert users, most simulation packages provide default values for key input parameters. In MD simulations using the GROMACS package with default parameters, we found large membranes to deform under the action of a semi-isotropically coupled barostat. As the primary cause, we identified overly short outer cutoffs and infrequent neighbor list updates that result in missed long-range attractive Lennard-Jones interactions. Small but systematic imbalances in the apparent pressure tensor then induce unphysical asymmetric box deformations that crumple the membrane. We also observed rapid oscillations in averages of the instantaneous pressure tensor components and traced these to the use of a dual pair list with dynamic pruning. We confirmed that similar effects are present in MD simulations of neat water in atomistic and coarse-grained representations. Whereas the slight pressure imbalances likely have minimal impact in most current MD simulations, we expect their impact to grow in studies of ever-larger systems, in particular in combination with anisotropic pressure coupling. We present measures to diagnose problems with missed interactions and guidelines for practitioners to avoid them, including estimates for appropriate values for the outer cutoff r_l and the number of time steps nstlist between neighbor list updates.
Unravelling the Complexities of Cryptocurrency Investment Decisions: A Behavioral Finance Perspective from Gulf Investors
Authors: Almansour Bashar Yaser , Elkrghli Sabri , Almansour Ammar Yaser
Published: July 2023

Purpose: This study aims to examine the impact of behavioral finance factors on the investment decisions of Gulf investors in the cryptocurrency market.

 

Theoretical Framework: The study is based on the behavioral finance theory, which highlights the role of emotions and cognitive biases in shaping investment decisions. It examines the investment behavior and decision-making of Gulf investors in the cryptocurrency market using a comprehensive set of factors, including herding, heuristics, prospect, market, familiarity bias, and self-attribution bias.

 

Design/Methodology/Approach: Primary data is collected through a survey-based approach using a 23-question distributed at the country level covering the United Arab Emirates, Kuwait, Qatar, and Saudi Arabia. The study analyzes the data collected using statistical methods to study the impact of behavioral finance factors on the investment decisions.

 

Findings: The results show that herding and heuristics strongly influence investment decisions in the cryptocurrency market among Gulf investors. The prospect factor positively affects investment decision-making in KSA and Qatar but not in UAE and Kuwait. The market factor is a significant determinant of investment behavior, and investors in UAE and Qatar are more cautious and risk-averse compared to KSA and Kuwait. The familiarity bias factor has different effects on investment decision making in KSA and UAE.

 

Research, Practical & Social Implications: This study offers valuable insights into how behavioral finance factors impact investment decisions in the cryptocurrency market. These findings can be useful to investors and financial institutions in developing investment strategies that take into account the cognitive and emotional biases of investors.

 

Originality/Value: The study uses a comprehensive set of behavioral finance factors and includes respondents from four Gulf countries. Therefore, the study contributes to the existing literature by providing unique insights into the investment behavior and decision-making of Gulf investors in the cryptocurrency market.
Superresolución con redes neuronales informadas por la termodinámica en problemas fluidodinámicos
Authors: Bermejo Barbanoj Carlos , Moya Beatriz , Badías Alberto , Chinesta Francisco , Cueto Elías
Published: July 2023

El objetivo de este trabajo es la utilización de redes neuronales para obtenener soluciones de alta resolución de un sistema dinámico cuando únicamente se dispone de medidas parciales. Para ello se utilizan sesgos inductivos que aplican los principios de la termodinámica, así como la aplicación de técnicas de superresolución.
Quantification of T-cell Migration in Confined and 3D Conditions
Authors: Zhang Zhou Jack , Movilla Meno Nieves , Oñate Salafranca Carmen , Guerrero Barrado Pedro Enrique , Pardo Jimeno Julián , García Aznar José Manuel
Published: July 2023

Migration is one of the immune system’s fundamental processes in order to carry out its function of defense against pathogens and aberrant cells. Therefore, a novel microfluidic-based approach was adopted to comprehend the immune response. We found that T lymphocytes show higher velocity under confinement in comparison to 3D migration.
Assessment of Experimental Artifacts in Evaporation Tests on Isolated, Suspended Droplets
Authors: Asrardel Mohamad , Poonawala Taha , Muelas Álvaro , Ballester Javier
Published: July 2023

The suspended droplet framework is commonly used to study liquid fuel evaporation and combustion. However, measurements at this facility can be affected by artifacts. This study examines their impact on butanol droplet evaporation. Thermal radiation and fiber conduction effects are specifically addressed. Results show that heat conduction through the fiber can significantly affect droplet evaporation, even causing internal bubbling in some cases.
Comparación de la recuperación de células de Salmonella adheridas al tomate Roma con el uso de ultrasonido y vortex
Authors: Ocampo-Mariscal G. , García-Frutos R. , Rojas-Banda A.L. , Martínez-Chávez L. , Martínez-Gonzáles N.E.
Published: July 2023

El consumo de tomates se ha asociado con brotes de salmonelosis. Los microorganismos presentes en la superficie del fruto pueden estar fuertemente adheridos (CFA) lo que dificulta su remoción. El objetivo de este trabajo fue comparar la recuperación de CFA de Salmonella en muestras de tomate Roma expuestas a ultrasonido o vortex, con tres tiempos de exposición. Cada tomate inoculado con Salmonella resistente a la rifampicina fue enjuagado manualmente con 100 ml de agua peptonada amortiguada (BPW, por sus siglas en inglés) para remover las células débilmente adheridas. El tomate fue sumergido en 100 ml de BPW y se expuso a baño de ultrasonido (40 kHz) o vortex (6 000 rpm), por 1, 5 y 10 min. Las cuentas de CFA de Salmonella del epicarpio de tomates fueron (p <0.05) diferentes en función del método y tiempo de agitación. El uso del vortex logró una mayor recuperación de CFA del patógeno en comparación el ultrasonido. Con 1 min de exposición se obtuvieron recuentos menores de CFA que con 5 y 10 min. Ambos métodos lograron recuperar CFA de Salmonella del epicarpio del tomate, es importante considerar el efecto del tiempo de agitación sobre la integridad del tomate cuando se elija un método.
Efecto del aceite de orégano en la vida de anaquel de carne de bovino
Authors: Reynoso-Escobedo H. , Luna-Maldonado A. I. , García-Treviño N.E. , Sinagawa-García S.R. , Rico-Costilla D.S. , Flores-Girón E. , Méndez-Zamora G.
Published: July 2023

En esta investigación se evaluó el efecto del aceite esencial de orégano (Lippia berlandieri Schauer) sobre la calidad de la carne de bovino. Un total de 11.2 kg de carne (Longissimus dorsi) fueron distribuidos en tres tratamientos y un control, divididos en dos réplicas cada uno. Los tratamientos evaluados fueron CBE: carne de bovino en emplaye sin aceite de orégano; CBV: carne de bovino al vacío sin aceite de orégano; CBEAO: carne de bovino en emplaye con 100 ppm de aceite de orégano; CBVAO: carne de bovino al vacío con 100 ppm de aceite de orégano. Las variables fisicoquímicas y microbiológicas fueron evaluadas a las 24 h de almacenamiento a 4°C. La carne tratada con el AO (CBEAO y CBVAO) mantuvieron el pH entre 5.46 y 5.64; el color de la carne se mantuvo, mejoró la retención de agua con valores de 65.65 hasta 69.23 %, aumentó las bacterias acido lácticas, hongos y levaduras. La adición de aceite esencial de orégano puede mejorar las propiedades fisicoquímicas actuando como conservador natural en la carne de bovino.
Desarrollo de un bioproceso: kéfir vegano de arroz-avena con propiedades antioxidantes
Authors: García-Hernández A. , Hernández-Guzmán G. , Barboza-Corona J.E. , Rodríguez-Hernández G.
Published: July 2023

El Kéfir es una bebida fermentada con una mezcla de probióticos. En el presente estudio, se trabajó con un cultivo mixto de 11 bacterias y una levadura, para desarrollar una formulación de kéfir vegano a base de arroz y avena, probándose tres diferentes proporciones de arroz-avena (50-50 %, 25-75 % y 75-25 % respectivamente) y se eligió una de ellas. Posteriormente, se trabajó con tres tratamientos de kéfir (uno vegano, uno a base de leche de vaca y un control a base de agua), cuantificados microbiológicamente (hongos y bacterias mesófilas aerobias) y monitoreados durante su vida en anaquel (doce días) en términos de acidez titulable, concentración peptídica, actividades proteolíticas y antioxidantes (radical DPPH). De los cual, se observó que la acidez titulable presentó diferencias significativas por efecto de tratamientos (P≤0.01), para la actividad proteolítica no existió diferencia significativa por efecto de tratamientos (P≥0.01), para la concentración peptídica se observó decremento durante vida en anaquel (P≤0.01) con diferencias por efecto de tratamientos (P≤0.01). Así también, las bebidas presentaron actividad antioxidante in situ, con diferencias por efecto de tratamientos (P≤0.01), día de monitoreo (P≤0.01), y por las dos concentraciones usadas del radical DPPH (P≤0.01).
Métodos para evaluar la biodisponibilidad, la bioaccesibilidad y el valor nutricional de suplementos alimenticios
Authors: Hernández-Esquivel S.A. , Martínez-Arellano I. , Córdova-Aguilar M.S.
Published: July 2023

La biodisponibilidad, la bioaccesibilidad y la calidad nutricional en particular de las proteínas son variables importantes para definir la efectividad y calidad de un alimento o suplemento para su utilización terapéutica. Conocer el valor nutricional de las proteínas permite la complementación proteica en la formulación de mezclas de proteínas de baja calidad y mejorar la biodisponibilidad y la calidad de la mezcla. Existen diversos métodos para determinar estos parámetros de las proteínas tanto in vitro como in vivo. Los métodos in vitro incluyen sistemas de digestión simulada y el uso de métodos de cultivo celular que imitan el eje intestino-torrente sanguíneo, los cuales se utilizan ampliamente en las ciencias de la alimentación, la nutrición y la industria farmacéutica, ya que permiten estudiar los cambios estructurales, la digestibilidad y la liberación de componentes de alimentos bajo condiciones gastrointestinales específicas. La eficacia nutricional de los productos alimenticios puede garantizarse mediante la determinación de la bioaccesibilidad del alimento, metodología que proporciona información valiosa para seleccionar la dosis y la fuente adecuadas de matrices. Los ensayos de digestión in vitro simulan las condiciones fisiológicas que se llevan a cabo en el organismo durante la digestión in vivo. Entre los más relevantes tenemos a: ARES, IMGS, MGD, SGH, SIMGI, SMG y TIM.
Literature Review: Effectiveness of Moringa Leaves (Moringa oleifera) to Diabetes Mellitus
Authors: Putri Lucya Rahayu , Yuniarti Elsa
Published: July 2023

Moringa oleifera (Moringa leaves) is often used in herbal medicine. Many compounds in Moringa leaves such as flavonoids, vitamins, and alkaloids. This article was written with the aim of knowing the effectiveness of Moringa leaves against diabetes mellitus. The method used is a literature review combined with a search for related sources on Google Scholar for 2012 to 2022. The results of the literature review of the articles carried out can be concluded that the effectiveness of Moringa leaves has a significant effect on the insulin hormone. This is because Moringa leaves contain flavonoids, vitamins, and alkaloids which are rich in antioxidants. Antioxidants contained in Moringa plants can prevent lipid peroxidation by peroxy radicals. In conclusion, Moringa leaves can prevent diabetes mellitus.
The Uniqueness of Endemic Animals Canary Crab (Birgus latro) as The Largest Crab Species in The Phylum Arthropoda
Authors: Mardiana Krisdarwindah , Daely Andara Frida Sheilaliany , Irawati Wahyu
Published: July 2023

Birgus latro or walnut crab is the largest land arthropod animal in the world, this crab has a unique and complex anatomy and body morphology that supports its survival. The research objective was to describe the anatomy, morphology, habitat, behavior, role, nutrition, reproductive system, immune system, gas exchange system, blood circulation, digestive system, excretory system, and Birgus latro osmoregulation. The research method used is literature review. This type of research is a form of qualitative descriptive research with review techniques from research journals on Birgus latro in Indonesia. This research was conducted by analyzing the results of research that had been published nationally and internationally relating to the life of Birgus latro. Walnut crabs live in areas that are damp and dark and avoid the sun to reduce the occurrence of evaporation on their bodies. Hard body parts such as shells, claws, and skin contain lots of calcium and chitin for self- defense and climbing coconut trees. The circulatory system of the walnut crab is open, this crab is also an osmoregulatory animal. The advice that the author can give for the preservation of walnut crabs is to provide outreach to the community regarding the importance of maintaining and preserving the existence of walnut crabs which are almost extinct. Establishing a walnut shell conservation center must also be carried out by the government to maintain the coconut crab population, as well as cultivate walnut crabs with the right procedure.
THE USE OF GARLIC (Allium sativum) AS AN IMMUNOSTIMULANT IN AQUACULTURE
Authors: Muahiddah Nuri , Diamahesa Wastu Ayu
Published: July 2023

The improvement of fish immunity is a critical factor in successful aquaculture. In recent years, the use of garlic (Allium sativum) as an immunostimulant has attracted researchers and farmers' interest in enhancing fish's health and disease resistance. This abstract discusses an overview of the use of garlic as an immunostimulant in aquaculture. Garlic is widely known for its antimicrobial, antioxidant, and immunostimulant properties. Several studies have evaluated the effects of garlic supplementation on various species of cultured fish. The results have shown that the administration of garlic in fish feed can enhance immune responses, such as increased immune enzyme activity and antibody production. Furthermore, active components in garlic, such as allicin and diallyl sulfide, have been proven effective against fish pathogens such as bacteria, viruses, and parasites. However, garlic as an immunostimulant in aquaculture still requires further research. Factors such as the appropriate dosage, interactions with farming conditions, and a deeper understanding of the underlying mechanisms must be considered. To optimise the use of garlic, further research is required to explore optimal dosages, interactions with environmental factors, and a better understanding of its effects on fish immune responses. In conclusion, garlic as an immunostimulant in aquaculture shows promising potential. The oral administration of garlic extract through the fish feed is capable of preventing infections by Aeromonas sp. and Aeromonas hydrophila in fish species such as Tawes, Catfish, Dumbo catfish, and Nile tilapia, while also enhancing non-specific immunity, such as increased total hematocrit, total haemoglobin, total erythrocytes, and phagocytic activity.
PENGARUH BRAND IMAGE, PRODUCT INNOVATION DAN HEDONIC VALUE TERHADAP WILLINGNESS TO PAY PREMIUM PRICE
Authors: Rohimah Miladiyah Jembari , Herman mulyono Lalu edy , Septiani Emilia
Published: July 2023

Penelitian ini bertujuan untuk mengetahui pengaruh brand image, product innovation dan hedonic value terhadap willingness to pay premium price pada smartphone iPhone. Jenis penelitian yang digunakan adalah penelitian asosiatif kausal dengan pendekatan kuantitatif. Populasi pada penelitian ini adalah masyarakat Indonesia yang pernah atau sedang menggunakan smartphone iPhone. Pengambilan sampel dengan menggunakan teknik non probability sampling dengan metode purposive sampling. Jumlah sampel pada penelitian ini sebanyak 100 responden, dengan kriteria usia minimal 17 tahun dan mengetahui, memahami, dan menggunakan smartphone iPhone minimal 3 bulan. Alat analisis menggunakan regresi linier berganda dengan program SPSS 26. Hasil dari penelitian ini menunjukkan bahwa brand image dan hedonic value berpengaruh positif dan signifikan terhadap willingness to pay premium price. Akan tetapi product innovation tidak berpengaruh positif dan signifikan terhadap willingness to pay premium price.
Effectiveness of Interactive Classroom Tool: A Quasi-Experiment in Assessing Students’ Engagement and Performance in Mathematics 10 using ClassPoint
Authors: Querido Doris V
Published: July 2023

Concerns about students' math skills have long existed on a global scale, the Philippines performed "significantly low" compared to all other participating countries in different achievement assessments. In addition, many students are showing signs of growing disengagement, particularly in mathematics. This is a significant matter since students' success and performance in mathematics may be at risk because of their lack of engagement. This study aimed to determine the effectiveness of the ClassPoint, an Interactive Classroom Tool, in enhancing students' engagement and performance in mathematics in face-to-face classes. The researcher utilized a quantitative quasi-experimental design, with 60 students as participants, covering the second quarter of Most Essential Learning Skills of Mathematics 10. Independent and Paired Samples t-test was employed to determine significant differences between formative test, posttest, and student engagement mean responses. The results showed that the students in the Experimental group who used the Interactive Classroom Tool performed better than the Comparison group who did not. The Experimental group showed a significant improvement in their performance, reaching a mastery level of 78% MPS, and a highly significant difference between the Comparison group in the independent t-test result. In addition, a paired t-test revealed that the interactive classroom tool considerably increased student engagement, as indicated by the significant difference in engagement scores between before and after the Interactive Classroom Tool was implemented. The study suggests that instructors may use Interactive Classroom Tool or ClassPoint as instructional materials to increase student participation and performance.