bluuebunny/crossref_metadata_2025 huggingface dataset:
The Development of the School Trial Islamic Religious Instruction at Bavarian Public Schools
Authors: YASAR AYSUN
Published: May 2023

This paper analyses the formation and development of the school trial Islamic religious instruction at public schools in Bavaria. The Bavarian trial was a pioneer project and was described as the nearest to the guidelines of the German Basic Law 7,3 compared to others. Meanwhile the Bavarian Islamic religious instruction has been tried for nearly 15 years. It has been evaluated positively for years, nevertheless its status of a school trial is ongoing. The school trial Islamic religious instruction in Bavaria fell far short of the expectations. It has neither been introduced nationwide in Bavaria nor received the status of a regular religious instruction according to the Basic Law 7,3 analog to the Jewish or Christian religious instruction. It seems that there’s no political will in Bavaria to accept the existing Islamic associations as a religious community according to the Basic Law 7,3. The unconstitutional status of the Islamic religious instruction will intensify the distrust of the Muslims into the Bavarian state.
Mudir Leadership in Improving Teachers’ Discipline at One Pondok Pesantren in Jambi
Authors: MUSPAWI MOHAMAD
Published: May 2023

This study aimed at determining the principals (Mudir) leadership in improving teachers’ discipline at óne Islamic boarding school (Pesantren) in the city of Jambi, Indonesia. Specific targets to be achieved from this research were guided by two research quetions: 1) how is the Mudir leadership in improving the discipline of teachers? and 2) what are the obstacles of Mudir leadership in improving teachers’ discipline? The research method used was qualitative method with a case study approach, where I described the research findings in the form of narrative ways. Data collection techniques used in this research were obervation, documentation, and interview. In relation to the trustworthness of the reseach, I applied triangulation through observation, documentation, and interviews. In addtition, member checking and audit-trail were used.  In analyzing the data, I trancribed the data, coded, and put them into some themes. I translated the thematic data into English and presented the data in a descriptive way. The findings of the study informed that the Mudir have applied some acts to improve teachers’ discipline namely being an exemplary person with discipline, evaluating teachers’ discipline, giving reward and punishment, and doing class visits. Some obstacles revealed in this research were physical performance of the Mudir and teachers’ age.
Ta'dib
Authors: Chief Editor In
Published: May 2023

Journal of Islamic Education: Full_Vol 23_No_1_June_2018
De-radicalization Efforts Through Religious Moderation for State Islamic University of Raden Fatah Palembang Students
Authors: Fauzi Muhamad , Rohmadi Rohmadi
Published: May 2023

Prejudice and claims of university as center of radicalism seeds appeared, after The National Counterterrorism Agency (BNPT) released that it was successful to create "scared politics" because it was found that there were seven universities which have radical understanding. The purpose of this study was to know Radicalism seeds among of university student and efforts to de-radicalize religious understanding through religious moderation for UIN Raden Fatah Palembang students. This research used qualitative and quantitative methods (mixed methods) through observation, interviews, questionnaires, and documentation technique. The data analysis technique used the Miles and Huberman model for qualitative data and descriptive statistical analysis for quantitative data. The results showed that there were potential seeds for radicalism that occur among 1590 new students (MABA) batch 2021 at UIN Raden Fatah Palembang who had a very low understanding of national commitment, open-minded/ tolerance, anti-violence, and accommodated local culture. The efforts to inculcate religious moderation to de-radicalize religious understanding were: 1) State Islamic University of Raden Fatah Palembang’s Policy in Curriculum Preparation, 2) Religious Student Organizations (Ormawa ) lead to become moderation agents through National Wirakarya Camps, 3) PBAK, Iftitah Lectures, Public Lectures, and Seminar on Strengthening Religious Moderation in Higher Education, 4) Establishing a house of religious Moderation at State Islamic University of Raden Fatah Palembang.
Analysis of the Level of Religious Moderation of High School Students in Rejang Lebong
Authors: Harmi Hendra
Published: May 2023

The purpose of this quantitative study was to determine the level of religious moderation among students in various high schools in Rejang Lebong Regency. This study involved 536 students (376 girls and 160 boys) from five SMA/SMK in the Rejang Lebong area. The non-test strategy was used to collect data in the form of a questionnaire. A questionnaire containing four markers of religious moderation was used in this study: national attitudes, tolerance, anti-violence, and acceptance of local culture. Based on the findings of the distribution of questionnaires to students in Rejang Lebong Regency, students in Rejang Lebong Regency have a high level of moderation. This can be observed in the percentage statistics given to students for each indication of religion. In addition, in an effort to build student religious moderation, schools in Rejang Lebong Regency also carried out PAI subjects which has been substantially proven to be able to form a moderate Islamic character. Educational institutions can also serve as testing grounds for religious moderation in diverse community settings.
A WhatsApp-based Flipped Classroom Model: Effect on Students’ Higher Order Thinking Skill
Authors: Muharom Fauzi , Nugroho Arif , Putra P Heldy Ramadhan , Nanda Giswa Aria
Published: May 2023

This study casts the light on the effect of WhatsApp-based flipped learning on students’ higher order thinking skills (HOTS). This study was experimental research involving 68 university students majoring in Islamic education at UIN Raden Mas Said Surakarta Indonesia who were divided into experimental group (N=34) and control group (N=34). A set of pre- and post-tests were used to measure the students’ HOTS. The data were analyzed through an independent sample t-test using SPSS version 24. The results showed that the students of experimental group successfully outperformed their counterparts in the post-test (p-value 0.000 < 0.05). Also, the result of independent t-test revealed a significant difference between the scores of pre- and post-test of the experimental students. WhatsApp-based flipped learning is a promising model for enhancing the students’ HOTS, as well as improving the efficacy of teaching-learning process. These results provide fruitful insights for higher educational stakeholders (teachers, students, and policymakers) to begin acknowledging flipped classroom model as an alternative approach for teaching in university level.
Adaptive mining difficulty for blockchain to resist selfish mining attack
Authors: Wang Jing , Wu Senkai , Liang Hai , Ding Yong , Zhai Yong
Published: May 2023

Aim: A blockchain provides data consistency and builds a fair mining environment for a network by using a consensus mechanism such as proof of work (PoW) and proof of stake. However, selfish mining is a well-known mining attack. It can reduce the fairness and destabilize the network, especially for a PoW-based blockchain. Therefore, in this paper, we propose a new approach, named the adaptive mining difficulty adjustment protocol, which can deter a selfish attack. Methods: We propose using the unit profit as an improved version of the relative revenue, because it is more flexible for calculating the miners’ profits in different periods and can be used to analyze repeated mining games. Based on the unit profit, we propose using the adaptive mining-difficulty adjustment protocol to reduce an attacker’s profit. Our protocol evaluates the effective hash power in a network more accurately and corrects the mining difficulty. Moreover, we introduce the discount factor and model the long-term profit to analyze the impact of a miner’s patience on its future profit. Results: We used an open-source simulator to simulate the competition between a selfish miner and an honest miner and determined their profits under different protocols. Our experimental results show that our protocol can effectively raise the attack threshold, but it reduces the total network profit if the attacker still attacks. However, the long-term profit model shows that a more patient attacker needs to invest more hash power and pay increased mining costs to maintain its attack. Conclusion: We conclude that, under our protocol, selfish attackers will tend to become honest miners if their hash power does not exceed the threshold, which means that our protocol can effectively deter selfish attacks and some variants of selfish attacks. Briefly, our protocol can correct the mining difficulty and leads to a more stable and fairer mining environment for a PoW-based blockchain.
Financial Literacy: The Key to Successful Family Financial Management
Authors: Sihaloho Fahmi Ashari S.
Published: May 2023

The family is the smallest unit of a society. The family is a unit consisting of the head of the household and several people who gather and live in one place under one roof in a state of mutual dependence on one another. Financial problems are something that must be experienced by a family, especially families who are just starting the household ark. Therefore, it is necessary to have good financial literacy so that family finances can be managed properly in order to achieve family welfare. The method used in this paper is literature study from journals and books and other publications related to the variables in this paper. The data in this study were taken from books and journal articles which were combined to provide solutions and procedures for good family financial management. This paper discusses how to do good financial planning so that families can adjust their expenses to family income. It is hoped that this paper can reduce the negative impact of public ignorance about family financial management
The Impact of Social Media on Individual's Attitudes and Perceptions in Davao City, Philippines
Authors: Grenien Daniel Suarez , Campos Karl
Published: May 2023

Social media and digital marketing are increasingly being used as a strategic tool for increasing brand awareness and running marketing campaigns. Moving away from the era of traditional or mass media, marketers can track brand competitors and have more measurable campaign results by using social media and digital marketing. Consumer behavior require businesses to craft marketing tactics in this social media driven era. This study seeks to examine how social media affects consumer views toward social media marketing and how they behave when making purchases. A survey was administered to 122 participants at Davao City looking at the perspective of the respondents toward social media marketing. The results of the study showed that social media marketing has the potential to drive the revenue of businesses. Moreover, the conduct of the study was able to identify that customers perception towards social media marketing factors has a significant effect in their purchases.
Impact of Entrepreneurial Identity Aspiration and Self-Efficacy towards Entrepreneurial Behavior of the Working Class of Davao City
Authors: De Gracia Daisy Vale Avila , Campos Karl P.
Published: May 2023

This study aims to quantify and measure the relationship of Entrepreneurial Identity Aspiration and Self-Efficacy to Entrepreneurial Behavior of the working class of Davao City where the culture has strong emphasis on working and providing for the family. The data is collected from 150 working people in Davao City through the e-questionnaires using Snowball sampling. Using a correlation-descriptive research design and multiple linear regression technique, the undertaking reveals that both Entrepreneurial Identity Aspiration and Self-Efficacy have a statistically significant impact on Entrepreneurial Behavior. However, the study also identified that Self-efficacy has a higher degree of correlation and effect towards Entrepreneurial Behavior. Furthermore, the results on Entrepreneurial Identity Aspiration show different results compared to relative studies presented. The results assume that even with the desire and aspiration to take an entrepreneurial role in the future, a person who is lacking on self-efficacy will not engage on entrepreneurial activities.
Communication Skills and Their Relation to Transferable Skills for Vocational High School Students
Authors: Suroto Suroto , Pargito Pargito , Sukirlan Muhammad , Firdaus Rangga , Winatha I Komang , Rahmanto Andi Adam , Rozak Abdul
Published: May 2023

One of the important abilities possessed by job seekers is transferable skills. The demands of the industry in fulfilling the workforce in the Industrial 4.0 era are more complex because they have to be adapted to hard skills and soft skills competencies. SMK is an important point in meeting the needs of industrial workers. The transferable skills developed are communication, cooperation, and discipline and responsibility. The aim is to analyze the development of transferable skills in productive learning at SMK and the absorption of soft skills by SMK students. This study uses a quantitative approach in which data processing is carried out using statistical methods. The type of research used in this study is the Quasi-Experimental method: Nonequivalent Control Group Designs. The researcher tries to find out the effect of the dependent variable and examines it retrospectively to establish causes, relationships, associations and their meaning. This research will be conducted on students of Agriculture Vocational Schools in Central Lampung . The results of this study indicate that communication skills really support the transferable skills of vocational students
CODE-SWITCHING IN ELT CLASSROOMSIN THE REPUBLIC OF KOSOVO
Authors: Skenderi Samir , Janusheva Violeta
Published: May 2023

Given that much research stresses out the positive homework impact on the students’ achievements in learning a foreign language, this study examines the English languageelementary students’opinionson homeworkin order to depict whether the Republic Kosovo’s elementary schools emphasize the significant role of homework in the foreign language teaching and learning process. Therefore, qualitative interviews with 30 English language elementary students from the sixth grade are conducted as a method for collecting data. The sample consists of 30 interviews’ transcript, and the analysis rests upon coding and the interpretative-inductive approach. The research results showthat the elementary education in the Republic of Kosovo recognizes the homework importance and that homework playsa significant role in students’success, i.e. it helps students to learn the lessons better and also allows them to become independent learners
Hadoop and Hive Inspecting Maintenance of Mobile Application for Groceries Expenditure
Authors:   Professor, Department of Computer Science and Engineering, Mahendra Engineering College, Mahendhirapuri, Namakkal District, Mallasamudram, Tamilnadu, India., Mr Rao P N , Ms Logeshwari ,   Assistant Professor, Department of Computer Science and Engineering,Mahendra Engineering College, Mahendhirapuri, Namakkal District, Mallasamudram, Tamilnadu, India., Mr Loganathan ,   Assistant Professor, Department of Computer Science and Engineering,Mahendra Engineering College, Mahendhirapuri, Namakkal District, Mallasamudram, Tamilnadu, India.
Published: May 2023

Numerous movable applications on secure groceries expenditure and e-health have designed recently. Health aware clients respect such applications for secure groceries expenditure, particularly to avoid irritating groceries and added substances. However, there is the lack of a complete database including organized or unstructured information to help such applications. In the paper propose the Multiple Scoring Frameworks (MSF), a healthy groceries expenditure search service for movable applications using Hadoop and MapReduce (MR). The MSF works in a procedure behind a portable application to give a search service for data on groceries and groceries added substances. MSF works with similar logic from a web search engine (WSE) and it crawls over Web sources cataloguing important data for possible utilize in reacting to questions from movable applications. MSF outline and advancement are featured in the paper during its framework design, inquiry understanding, its utilization of the Hadoop/MapReduce infrastructure, and activity contents.
Book Monuments of the Boris Yeltsin Presidential Library and their Integration into the Electronic Collection
Authors: Nuzhina N. A.
Published: May 2023

Preservation and accessibility of cultural heritage, the most important part of which are book monuments, is the main task of libraries and other cultural institutions.

An important achievement in the implementation of the state policy was the consolidation in the Russian legislation of the norms governing the work with book monuments, the formation of the Register of Book Monuments, the creation of the site “Book Monuments” within the framework of the national project “Culture”, being the part of the National Electronic Library.

The article presents the first results of work on the identification, study and digitization of book monuments from the collection of rare books stored in the non-digital collection of the Presidential Library.

The purpose of this article is to introduce researchers to book monuments from the collection of rare books of the Presidential Library, the peculiarities of presenting their digital copies in the library's electronic collection.

A brief description of the documents identified in the collection of rare books with signs of book monuments is given. Among them, there are early printed books; books with autographs, records of scientific, historical, cultural interest; books from personal collections of prominent people, etc. Considerable attention is paid to the description of the rarest and most interesting copies. The basic principles and approaches to digitization and presentation of book monuments in the central collection of electronic documents are considered. Special attention is paid to the experience of the Presidential Library in forming the digital collection “Book Monuments of the Presidential Library”, which includes selected domestic and foreign editions published before 1830.
SPSTL SB RAS Collection of Scantily Used Editions in the Readers Service System
Authors: Vikhreva G. M. , Makhotina N. V. , Fedotova O. P.
Published: May 2023

Developing programs of new directions of work with readers in the changing sociocultural conditions is an actual orientation of domestic librarianship policy. The results of studies undertaken in order to reveal modern trends in the service system of SPSTL SB RAS showed, in particular, the growing request for belletristic and mass literature on the part of readers. This tendency of changing information needs deserves more profound study for to perfect both the servicing system and the technology of building the library stock.

The object of the local study, undertaken by the authors of this article, is one of the segments of the large stock of belletristic and mass literature stored in SPSTL SB RAS - the collection of scantily used editions (FMI). Today, FMI is an ever-growing collection of publications that has its own reader, but still is not in demand enough.

Our goal was to use the methods of comparison, analysis, synthesis and observation for to consider the relevance of this collection, its place in the system of other library collections, as well as to identify opportunities to realize FMI potential in meeting new readers' needs.

The involved theoretical material and the analysis of practice allowed the authors to assert that one of the main causes of unsatisfactory rate of this collection usage are organizational and technological contradictions primarily laid at the bottom of its functional capacity, which prevent providing integrity of its managerial system. Increasing the efficiency of FMI use could be facilitated by bringing it closer to the reader “physically” and reflecting the content of the collection in readers' catalogs.
«Book Culture in the Digital Era»: the Results of the All-Russian (with International Participation) Scientific and Practical Conference. The Republic of Buryatia, November 24-25, 2022
Authors: Kuchmurukova E. A. , Shanginova G. A.
Published: May 2023

The results of the All-Russian (with international participation) scientific and practical conference “Book Culture in the Digital Age”, organized by the Department of Library and Information Resources of the East Siberian State Institute of Culture within the framework of the implementation of the comprehensive scientific topic, are summarized. The reports presented at the plenary and sections sessions, panel discussion are characterized, and the recommendations formulated by the participants of the event are summarized.
Can Physics Benefit from a New Concept of Time?
Authors: Niemz Markolf H. , Stein Siegfried W.
Published: May 2023

Today’s concept of time is based on Einstein’s theories of special (SR) and general relativity (GR). Many physicists anticipate that GR has an issue since it is not compatible with quantum mechanics. Here we show: SR and GR work well for each observer describing his unique reality, but “Einstein time” (Einstein’s concept of time) has an issue. It arranges all events in the universe in a 1D line on my watch, yet neither cosmology nor quantum mechanics care about my watch. In Euclidean relativity (ER), we replace Einstein time (coordinate time of an observer) with Euclidean time (proper time of each object). In Euclidean spacetime (ES), all energy is moving at the speed of light. For each observed object, Euclidean time flows in a 4D direction equal to its direction of motion. The projection of the object’s 4D vector “flow of time” to an observer’s direction of motion yields its motion in his Einstein time. Because of the projection, Einstein time provides less information than Euclidean time. ER gives us the same Lorentz factor as in SR and the same gravitational time dilation as in GR. Yet ER outperforms SR in explaining time’s arrow and mc2. ER outperforms a GR-based cosmology in solving competing Hubble constants and declaring cosmic inflation, expansion of space, and dark energy redundant. Most important, ER is compatible with quantum mechanics: It solves the wave–particle duality and quantum entanglement while declaring non-locality redundant. We conclude: Physics based on Euclidean time penetrates to a deeper level and makes less assumptions.
Resolution of the 3n+1 Problem Using Inequality Relation Between Indices of 2 and 3
Authors: Goyal Gaurav
Published: May 2023

Collatz conjecture states that an integer $n$ reduces to $1$ when certain simple operations are applied to it. Mathematically, the Collatz function is written as $f^k(n) = \frac{3^kn + C}{2^{z}}$, where $z, k, C \geq 1$. Suppose the integer $n$ violates Collatz conjecture by reappearing as $2^in$, where $i \geq 1$, then the equation modifies to $n \left(1 - \frac{3^k}{2^{z}2^i}\right) = \frac{C}{2^{z}2^i}$. The article takes an elementary approach to this problem by calculating the bounds on the values of $\frac{C}{2^{z}2^i}$ and $1 - \frac{3^k}{2^{z}2^i}$. Correspondingly, an upper limit on the integer $n$ is placed that can re-appear in the sequence. The integer $n$ lies in the $(-\infty, 5)$ range, and the limit on the number of odd steps is $k < 3$. Finally, it is shown that no integer chain exists that does not lead to 1.
Analysis of Volatile Compounds and Flavor Fingerprint Using Gas Chromatography–Ion Mobility Spectrometry (GC–IMS) on Crassostrea gigas With Different Ploidy and Gender
Authors: Fu Jingjing , Sun YouMei , Cui Mingxian , Zhang Enshuo , Dong Luyao , Wang Yanchun , Wang Weijun , Li Zan , Yang Jianmin
Published: May 2023

In this study, GC–IMS was used to analyze the volatile component and flavor profiles of Crassostrea gigas individuals of different ploidy and gender. Principal component analysis was used to explore overall differences in flavor profiles and a total of 54 volatile compounds were identified. The total volatile flavor contents in edible parts of tetraploid oysters were significantly higher than in diploid and triploid oysters. The concentrations of ethyl (E)-2-butenoate and 1-penten-3-ol were significantly higher of triploid oysters than in diploid and tetraploid oysters. In addition, the volatile compounds propanoic acid, ethyl propanoate, 1-butanol, butanal, and 2-ethyl furan were significantly higher in females than in males. The volatile compounds p-methyl anisole, 3-octanone, 3-octanone, and (E)-2-heptenal were present in higher levels in male than in female oysters. Overall, different ploidy and gender of oysters were being presented with different sensory characteristics, providing new insights for understanding the flavor characteristics of oysters.
Dynamic Characteristics of a Rotating Blade with a Dovetail Structure
Authors: Fan Xiaoyu , Liang Wenchao , Zeng Jin , Yang Yang , Ma Hui , Fan Chenguang , Fu Shunguo
Published: May 2023

Considering rotation-induced centrifugal stiffening, spin softening, and Coriolis effects, the three-dimensional finite element model of a rotating blade with a dovetail structure is built through the contact dynamics theory. The fixed-interface component mode synthesis method is then adopted to reduce the model for high computational efficiency and adequate model accuracy. The effects of the number of normal modes on the first-six-order modal characteristics of the model varying with the rotating speed are studied between the reduced and full models. Next, the influence of rotating speed and friction factor on the nonlinear dynamic characteristics of the model under the action of aerodynamic force are elaborately discussed. The results show that: (1) tenon-mortise joint contact-induced nonlinearity under low rotating speeds results in the intermittent interference of contact surfaces and frequency multiplications of aerodynamic excitation frequency in the spectrum cascades, while that under high rotating speeds causes the continuous interface contact and asynchronous excitation at the tenon-mortise joint; (2) the increase of friction factor results in a lower contact pressure distribution and the right shift of the resonance peak (i.e., hard nonlinearity).
Hybrid Functions Approach to Solving Nonlinear Integral Equations in Two Dimensions
Authors: Abusalim Sahar M. , Abdou Mohamed A. , Abdel-Aty Mohamed A. , Nasr Mohamed E.
Published: May 2023

This study presents the solution of the second type of a two-dimensional nonlinear integral
equation in Banach space. Also, the existence and uniqueness of this equation’s solution are
discussed. We utilize a numerical approach involving hybrid and block-pulse functions to obtain
the approximate solution of a two-dimensional nonlinear integral equation. Nonlinear integral
equation in two dimensions is reduced numerically to a system of nonlinear algebraic equations
that can be solved using numerical methods. This study focuses on showing the convergence
analysis for the numerical approach and obtaining an error estimate. Some numerical examples
have been provided to demonstrate the approach’s viability and efficacy
Feet Segmentation for Regional Analgesia Monitoring using Convolutional RFF and Layer-Wise Weighted CAM Interpretability
Authors: Aguirre-Arango Juan , Álvarez-Meza Andrés Marino , Castellanos-Dominguez German
Published: May 2023

The administration of regional neuraxial analgesia for pain relief during labor is widely recognized as a safe and effective method involving medication delivery into the epidural or subarachnoid space in the lower back. This study proposes an innovative semantic image segmentation methodology emphasizing enhanced interpretability using convolutional Random Fourier Features and layer-wise weighted class-activation maps tailored explicitly for foot segmentation in regional analgesia monitoring. Namely, our contribution is twofold: i) a novel Random Fourier Features layer is introduced to deal with image data to enhance three well-known architectures (FCN, UNet, and ResUNet); ii) three novel quantitive measures are presented to evaluate the interpretability of a given deep learning model devoted to segmentation tasks. Our approach is rigorously evaluated on a demanding dataset of foot thermal images from pregnant women who received epidural anesthesia. Its small size and considerable variability characterize the dataset. Our validation results demonstrate that the proposed methodology not only achieves competitive foot segmentation performance but also significantly enhances the explainability of the process, rendering it well-suited for applications such as epidural insertion during labor.
Improved Authentication and Communication Schemes for Urban Traffic Monitoring in VANETs Based on Cluster Management
Authors: Latif Rana Muhammad Amir , Jamil Muhammad , He Jinliao , Farhan Muhammad
Published: May 2023

City zones have become increasingly overcrowded as a result of the extensive population widening ratio and the swift relocation of people from villages. The traffic monitoring process is a major issue in these areas due to the massive traffic flow on the roads. This research proposed a cluster-based improved authentication and communication scheme for an Intelligent Transportation System in Vehicular AdHoc Networks (VANETs). Our primary objective is to optimize resource sharing in vehicular communication. We enhanced the reliability, scalability, and stability of fast-moving VANETs by introducing cluster-based routing schemes for Vehicle-to-Vehicle (V2V) and Vehicle-to-Infrastructure (V2I) communications. We used a third-party certification authority for vehicle authentication to address security and privacy concerns. Our proposed schemes support minimizing the end-to-end (E2E) delay and route request, in addition to reducing link failure. Our schemes’ leading yield includes throughput enhancement, TCP Socket Initialization time minimization, TCP handshake response speedup, and DNS lookup improvement. The schemes are centred on short-range peer-to-peer (P2P) wireless communication in a 400-meter radius cluster. This includes innovative P2P wireless communications on VANET using minimized resources. The proposed schemes deliver a secure authentication mechanism with a securely generated vehicle authentication key provided by a certification authority. Furthermore, we have developed RESTful APIs in vehicular communication for implementation purposes, and also offered and implemented algorithms for resource sharing regarding V2V and V2I communication. Ultimately, we evaluated the performance of our experiments.
A Method for Correction of Shoulder-Bed Effect on Resistivity Logs Based on a Convolutional Neural Network
Authors: Leonenko A.R. , Petrov A.M. , Danilovskiy K.N.
Published: May 2023

—Shoulder beds may have a significant effect on the resistivity log responses. This problem is especially acute in studies of complex strata composed of thin beds with contrasting properties. Different approaches to taking account of the shoulder-bed effect on logging signals are known, such as correction charts, deconvolution operations, and using advanced algorithms of numerical data inversion, which allow one to consider the vertical inhomogeneity of the section. The best result is achieved using the inversion toolkit, but the high labor- and resource-intensiveness of the approach limits its widespread use. The deconvolution approach does not have these disadvantages, but it does not take into account the influence of radial changes in the medium properties on the shapes of measured signals.The possibility of using artificial neural networks (ANN) to increase the vertical resolution of the measured logging data is explored. We assume the existence of a deconvolution-like transformation in which change in the medium properties in the radial direction is also considered. In this case, we can find its approximation using a neural network. The approach is demonstrated by creating a transformation algorithm for the high-frequency electromagnetic logging (VIKIZ) sounding tool, which is widely used in the CIS countries for petroleum exploration. The developed algorithm has been tested on the VIKIZ logs from the Fedorovskoe oilfield (Latitudinal Ob’ region).
Trypanosoma cruzi in Mexican Neotropical vectors and mammals: wildlife, livestock, pets, and human population
Authors: Izeta-Alberdi Amaia , Pech-May Angélica , Tun-Ku Ezequiel , Mazariegos-Hidalgo Carlos Jésus , López-Cancino Sury Antonio , Gutiérrez Sleidher , Albino-Miranda Sergio , De la Cruz-Felix Keynes , Diaz de la Cruz José Manuel , Ibarra-Cerdeña Carlos N. , Arellano Elizabeth , Vallejo Rachel M. , Ocampo Marco A. , Ramsey Janine M.
Published: May 2023

Objective. To provide primary evidence of Trypanosoma cruzi landscape genetics in the Mexican Neotropics. Materials and methods. Trypanosoma cruzi and discrete typing units (DTU) prevalence were analyzed in landscape communities of vectors, wildlife, livestock, pets, and sympatric human populations using endpoint PCR and sequencing of all relevant amplicons from mitochondrial (kDNA) and nuclear (ME, 18S, 24Sα) gene markers. Results. Although 98% of the infected sample-set (N=2 963) contained single or mixed infections of DTUI (TcI, 96.2%) and TcVI (22.6%), TcIV and TcII were also identified. Sensitivity of individual markers varied and was dependent on host taxon; kDNA, ME and 18S combined identified 95% of infections. ME genotyped 90% of vector infections, but 60% of mammals (36% wildlife), while neither 18S nor 24Sα typed more than 20% of mammal infections. Conclusion. Available gene fragments to identify or genotype T. cruzi are not universally sensitive for all landscape parasite populations, highlighting important T. cruzi heteroge- neity among mammal reservoir taxa and triatomine species.
Disparities on prostate cancer survival in Mexico: a retrospective cohort study
Authors: Torres-Sánchez Luisa Elvira , Hernández-Pérez Jesús Gibran , Escamilla-Nuñez Consuelo , Rodríguez-Covarrubias Francisco , Manzanilla-García Hugo , Mohar Alejandro , Morales-Carmona Evangelina , Espin-Arellano Lucino Iván , Hernández-Ávila Juan Eugenio , Lajous Martin
Published: May 2023

Objective. To estimate prostate cancer (PC) survival in Mexico and explore survival disparities according to the marginalization level of residence place. Materials and methods. A nationwide administrative claims database (4 110 men) whose PC treatment was financed by Seguro Popular between 2012-2016, was cross-linked to the National Mortality Registry up to December 2019. Patients were classified according to their oncological risk at diagnosis and the marginalization level of the residence municipality. Cox proportional hazards regression was used to estimate multivariable survival functions. Results. Five-years PC survival (69%; 95%CI: 68,71%) ranged from 72% to 54% at very low and very high marginalization, respectively (p for trend<0.001). The lowest PC survival was observed in men with high-risk PC (47%; 95%CI: 33,66%) residents in very high marginalization municipalities. Conclusions. Overall, PC survival was lower than that reported in other Latin American countries. The distribution of oncologic risk and survival differences across marginalization levels suggests limited early detection and cancer health disparities.
Barriers, refusal and a hypothetical monetary incentive for Covid-19 vaccination in Mexican adults
Authors: Carnalla Martha , Basto-Abreu Ana , Stern Dalia , Colchero M Arantxa , Shamah-Levy Teresa , Alpuche-Aranda Celia M , Bautista-Arredondo Sergio , Barrientos-Gutiérrez Tonatiuh
Published: May 2023

Objective. To estimate vaccine uptake and assess sociodemographic conditions associated with vaccination barriers and refusal and to explore the effect of a monetary incentive to overcome them. Materials and methods. We used data from adults from the 2021 National Continuous Health and Nutrition Survey conducted during August-October 2021. We evaluated if an hypothetical monetary incentive between 50-650 MXN (~2.5-31 USD) would overcome barriers or refusal. Results. 73.9% were vaccinated with at least one dose, 7.5% refused, 4.8% reported barriers and 13.8% were ineligible at the time of the survey. Refusal and barriers were more frequent in men, older age, lower education and socioeconomic status, unemployed and informal workers. In people with barriers and refusal, the hypothetical incentive increased the acceptance in 57.6% (95%CI 50.7,64.4%) and 17.4% (95%CI 13.2,21.7%) in people with barriers and refusal, respectively. Conclusion. Understanding the reasons for barriers and refusal is crucial for future Covid-19 vaccination campaigns or epidemics. A monetary incentive might increase vaccination uptake, although, cost-effectiveness analyses are needed.
Viabilidad de una escala de experiencias de inseguridad del agua en hogares mexicanos
Authors: Shamah-Levy Teresa , Mundo-Rosas Verónica , Muñoz-Espinosa Alicia , Méndez Gómez-Humarán Ignacio , Pérez-Escamilla Rafael , Melgar-Quiñones Hugo , Frongillo Edward A. , Young Sera L.
Published: May 2023

Objetivo. Identificar la viabilidad de la Escala de Experiencias de Inseguridad del Agua en el Hogar (Household Water Insecurity Experiences Scale, HWISE, por sus siglas en inglés) como herramienta para evaluar las experiencias de hogares mexicanos en relación con la inseguridad en el acceso al agua. Material y métodos. La escala fue integrada en la Encuesta Nacional de Salud y Nutrición Continua 2021 (Ensanut Continua 2021) y se utilizaron tres criterios para evaluar su viabilidad: 1) Consistencia interna: Se aplicó la prueba Alfa de Cronbach para estimar la correlación entre los ítems de la escala. Se consideró un punto de corte de al menos 0.80 como criterio de confiabilidad; 2) Equivalencia de los ítems para distintos indicadores sociodemográficos; y 3) Variables asociadas con inseguridad del agua. Resultados. La escala HWISE mostró: 1) Buena confiabilidad o consistencia interna (Alfa de Cronbach de 0.928); 2) comportamiento equivalente de los ítems en los contextos urbano y rural, en nueve regiones del país y por terciles de condiciones de bienestar; y 3) asociación significativa con variables predictoras de inseguridad del agua. Conclusiones. La escala HWIS, adaptada para México, es apropiada para su uso en evaluar la condición de inseguridad del agua en hogares mexicanos.
Establishment and validation of a machine learning based prediction model for termination of pregnancy via cesarean section
Authors: Zhang Rui , Sheng Weixuan , Liu Feiran , Zhang Jin , Bai Wenpei
Published: May 2023

Purpose This study aimed to investigate the risk factors related to the termination of pregnancy via cesarean section and establish a prediction model for cesarean section based on the characteristics of pregnant women.Patients and methods: The clinical characteristics of 2552 singleton pregnant women who delivered a live baby between January 2020 and December 2021 were retrospectively reviewed. These women were divided into vaginal delivery group (n = 1850) and cesarean section group (n = 802). Lasso regression analysis was employed to screen the independent risk factors of cesarean section. Multivariate logistic regression analysis was used to establish the prediction model, followed by delineation of nomogram, receiver operating characteristic curve (ROC), calibration curve, Decision Curve Analysis (DCA) and confusion matrix.Results There were 1850 women in the vaginal delivery group and 702 women in the cesarean section group. There were significant differences in the age and height of women, maternal weight at birth, pregestational weight, weight gain during pregnancy, gravida, weeks of pregnancy, use of assisted reproductive technology, abnormal blood glucose, hypertension disorders of pregnancy(HDP), scarred uterus, premature rupture of membrane༈PROM༉, placenta previa, floating head, abnormal fetal presentation, cord entanglement and labor analgesia between two groups (P < 0.05). The risk factors of cesarean section included the age and height of women, weight at delivery, fetal weight, number of parturitions, use of assisted reproductive technology, oligohydramnios, hypertension disorders of pregnancy, scarred uterus, premature rupture of membrane, placenta previa, uterine intertie and labor analgesia. The AUC of training set and test set was 0.882 and 0.866, respectively; the Brier score was 11.1 and 11.8; the accuracy was 0.8327 and 0.8016; the Kappa was 0.5908 and 0.5364; the precision was 0.6863 and 0.6038; the recall was 0.7308 and 0.7692; the F1-Score was 0.7078 and 0.6765.Conclusion The logistic regression prediction model of cesarean section has favorable discrimination, accuracy and consistency and can be employed as a reference for clinicians to improve the outcomes of pregnant women and neonates.
Polyphenols and Phytohormones Profiling of Pre-Harvest Sprouting Resistant and Susceptible Wheat Genotypes
Authors: Zhou Guoyan , Wu Shaoyun , Chen Dan , Wu Xiaoyang , Cai Qing
Published: May 2023

Pre-harvest sprouting (PHS) is one of the major threats to global food security as it significantly affects cereals’ production and quality. PHS tolerance depends on diverse factors, among which phytohormones and germination-inhibitory substances (GISs) play essential roles. However, in wheat, information related to GIS in the glume is scarce. Thus, we applied LC-MS/MS-based metabolomics analysis to explore the polyphenols and phytohormones profiles of two contrasting wheat genotypes, Lincang Hulled Wheat (LHW, PHS-resistant) and Yunmai53 (Yun53, PHS-highly susceptible). Physiological tests revealed that LHW PHS-resistance is not associated with the ability of its spikelet to prevent water absorption. The total polyphenol content of the spikes and shells of LHW were significantly higher than that of Yun53, respectively. In total, 214 phenolic compounds classified mainly into phenolic acids (42.52%), flavones (23.83%), and flavonoid carbonosides (16.36%) were identified. 180 differentially accumulated polyphenols (DAPs) were uncovered, including 168 up-regulated in LHW. 24 most up-regulated DAPs (Log2FC ≥ 8) were unveiled as potential candidate GISs. Of the identified phytohormones, abscisic acid (ABA), salicylic acid (SA), and jasmonic acid (JA) exhibited significantly higher content in LHW compared to Yun53. Whereas, Yun53 contained significantly higher levels of ethylene and gibberellin (GA) than LHW. Our findings offer new resources for PHS control in wheat.
Remote ischemic post-conditioning promotes reverse remodeling after pressure-overload myocardial hypertrophy
Authors: Hao Yongming , Zhou Chenghui , Pei Hanjun , Zhang Xinhui , Wang Yue
Published: May 2023

Remote Ischemic Post-conditioning (RIPostC) is a new type of endogenous cardiac protection that is applied widely in valvular heart surgery and coronary intervention. In this study, we demonstrated that RIPostC promotes postoperative reverse remodeling in rats with pressure overload cardiac hypertrophy by inhibiting cardiomyocyte apoptosis, interstitial fibrosis, and oxidative stress. RIPostC may initiate the endogenous protective mechanism of the heart by activating SIRT3, reduce the excessive apoptosis of cardiomyocyte and oxidative stress, thereby improving poor cardiac remodeling.
Goodpasture’s syndrome with neurologic and renal vascular involvement and negative ANCA
Authors: Lei Yan , Chen Dongni , Liang Yuling , Zhu Wenjian , Zheng Zhihua , Wang Xiaohua
Published: May 2023

Goodpasture’s syndrome (GPS) is a rare but severe vasculitis disease, characterized by rapidly progressive glomerulonephritis (RPGN), diffuse pulmonary hemorrhage in the presence of anti-glomerular basement membrane antibody (anti-GBM antibody). Central nervous system (CNS) was rarely involved, especially in the absence of anti-neutrophil cytoplasmic antibodies (ANCA). Typically, CNS vasculitis was one of important causes. Herein we present a case of GPS presenting RPGN, clonic-tonic seizures and bloody sputum. She underwent renal puncture and bleeding complication occurred afterwards. Due to the insufficiency of conservative therapy including transfusion, fluid infusion, selective renal arteriography embolization was then employed. Angiogram results showed beading changes of renal artery. Brain CT scan was found negative, but MRA imaging demonstrated the obvious involvement of cranial vessels. The changes of renal and cranial vascular involvement were highly suspicious of nervous vasculitis based on the primary disease. The patient was treated with corticoids and plasma exchange. Patient’s condition improved quickly and anti-GMB antibodies proved to be negative, but renal failure persisted, dependent on long-term hemodialysis. We described for the first-time association of Goodpasture’s syndrome with both renal and nervous vascular involvements.
The impact of left-behind experience on adulthood depression: the role of social networks, subjective well-being, and resilience
Authors: Wei Wanqing , Huang Jinguan , Wu Aiqin
Published: May 2023

Background Although some studies have explored the relationship between left-behind experience and depression of adulthood, there is generally a lack of analysis of the mechanisms involved and insufficient attention to heterogeneous influences.Methods Using the China Labor-force Dynamics Survey in 2018 (CLDS 2018), we assessed depression level by the Center for Epidemiologic Studies Depression Scale (CES-D). The OLS regression was used to exam the effect of the left-behind experience, propensity score matching analyses were used to reduce selection bias. Mediation analysis was carried out using a multiple regression analysis to exam the mechanism of social support network, subjective wellbeing (happiness and life transaction). We also divide the sample into two groups according to the level of resilience, to investigate the role of resilience in resisting depression.Results Results show a positive relationship between the left-behind experience and adulthood depression, and longer left-behind duration associated with higher adulthood depression. Mediation analysis show that social networks and subjective well-being mediated the relationship between left-behind and adulthood depression; heterogeneity analysis show that left-behind stage, type (both or single parents migrated) had a heterogeneity effect on adulthood depression level: those people who had experienced the left-behind earlier have higher depression; the effect size of care type showing the characteristics of “single-parent guardianship > grandparent guardianship > parents guardianship”. Groups comparison show that higher resilience group had a lower effect of left-behind on adulthood depression.Conclusion This study demonstrates that left-behind experience could have long-term impact on individual’s mental health. When the left-behind grew up, they have higher depression level, and we found that those people experienced left-behind also have weaker social networks, lower subjective happiness and life satisfaction, these factors caused higher depression level. And higher resilience can help individuals to resist the impact of left-behind on depression. This study expands the knowledge and understanding of the mechanism about the left-behind experience impact on adulthood mental health, and revealed the protective role of resilience.