bluuebunny/crossref_metadata_2025 huggingface dataset:
Forecasting the Pakistan’s Leading Stock Exchange During Covid-19 Using Machine learning (ML) Algorithms: Model Development and Validation
Authors: Munir Tahir , Mamlook Rabia Emhamed Al , Rahman Abdu R , Shrestha Sujeet , Bzizi Mohamed , Aljohani Abeer
Published: January 2023

During COVID-19, marketing shows sharp fluctuation in upward and downward trends. Forecasting price actions is one of the most challenging problems in this situation. It is challenging to build an accurate model, which integrates economic and Covid-19 variables as input for KSE index prediction. To tackle this problem, our proposal comprises applying machine learning (ML) techniques to predict the KSE during Covid-19. The principal aim of this study is to examine accuracy of combined models with individual models to forecast the Karachi Stock Exchange during COVID-19. This study has analyzed the indices of KSE from March 1st, 2020, to November 26th, 2021. Therefore, this study is keen to find the best-fitted model that forecasts more accurately during the pandemic. To select the most suitable machine learning technique, the six inferred models (i.e., Linear regression (LR), Artificial Neural Network (ANN), Regression Tree (RT), Random Forests (RF), (KNN), and Support Vector Regression (SVR)) are selected to forecast the Karachi Stock Exchange During Covid-19. Performance metrics (i.e., MAE, MSE, MAPE, and R2) are applied to measure and compare accuracy. The modeling outputs presented the RF model provided the best performance of 0.98 versus the other models in predicting the KSE100 index. Thus, the addition of ML methods improves the exchange indications and the competitiveness of future trading guidelines. These projections helped the government to make strategies for the stock exchange KSE-100 and fight against a pandemic disease. The results suggest that the performance of the KSE-100 index can be predicted with machine-learning techniques.
Effect of Macleaya cordata extract on the growth performance and growth-related expression gene pathways in rats was investigated by liver transcriptome technology
Authors: Wu Yong , Wu Rongrong , Li Xiang , Liu Gao-feng , Shen Li-Xia , Huang Chong-yin , Cao Yu-Hang , Peng Xiong , Liu Zhao-Ying , Sun Zhi-Liang , Liu Yi-Song
Published: January 2023

Macleaya cordata is a perennial upright herb belonging to the family Papaveraceae that represents a natural and low-residue product that has good effects in the prevention and treatment of livestock and poultry diseases and improves production performance; moreover, drug resistance to Macleaya cordata is difficult to establish. However, the specific mechanism of action is not clear. Therefore, this study was performed to clarify the molecular mechanism through transcriptome technology. Thirty-six specific pathogen free (SPF) male Sprague Dawley (SD) rats were divided into 3 groups of 12 rats each: high and low dose groups of 0.5 mg/10 g bw.d and 0.05 mg/10 g bw.d, respectively, and a blank group administered normal saline. Three livers from each group were collected for transcriptome sequencing, and Gene Ontology (GO) enrichment, Kyoto Encyclopedia of Genes and Genomes (KEGG) annotation, and pathway enrichment analyses of differentially expressed genes (DEGs) were performed. Transcriptome sequencing results revealed 104 upregulated and 354 downregulated genes in the high-dose group and 116 upregulated and 46 downregulated genes in the low-dose group compared with the blank group. The GO analysis showed that the DEGs were mainly associated with ATP metabolism, molecular transmembrane transport, protein decomposition and regulation, and nitrogen metabolism. The KEGG pathway enrichment analysis showed that the DEGs were mainly involved in cell proliferation and differentiation, amino acid metabolism, lipid transport, purine metabolism, and gluconeogenesis. Eight differentially expressed genes (RAD15D, BMP7, NFATC4, HDC, RPS6, RPS25, MRP133, and COX6C) verified by qRT-PCR were consistent with the trend of transcriptional sequencing.
A study on the behavior of RC beams provided with WWM as shear reinforcement for different shear span to depth ratios
Authors: D Rama Seshu , Ch Manjula. , Rao T. D.G. , K Rao C B
Published: January 2023

It known from the literature that shear behavior of RC beams is influenced by the shear span to depth ratio (a/d). In general, the stirrups are used in providing the shear resistance in RC beams. The use of conventional stirrups makes the high shear stress region i.e., the core zone of RC beam cross section as un-reinforced. This makes the shear cracks to propagate rapidly in the core zone and leads to the brittle failure of RC beams under shear. The use of Welded wire mesh (WWM) as a transverse reinforcement in place of conventional stirrups makes the core zone of the RC beam cross section reinforced and provides better shear resistance. This paper presents an experimental investigation on the effect of using welded wire mesh as core zone transverse reinforcement in place of conventional stirrups in RC beams with different shear span to depth ratio. The experimental study indicated the effectiveness of WWM in RC beams with a/d > 2.5 and shown the better performance compared to the shear resistance of RC beams provided with the conventional stirrups. A new parameter termed as ‘Mesh index’ which takes in to account indirectly the effect of welded wire mesh (WWM) has a good correlation in predicting the shear strength of RC beams.
Effective approaches to public involvement in care home research: a systematic review and narrative synthesis
Authors: Burgher Tanisha , Shepherd Victoria , Nollett Claire
Published: January 2023

Background
Public involvement (often referred to as patient and public involvement or PPI) integrates the voices of the public in health and care research. However, groups such as care home residents are often excluded from involvement opportunities due to the complexities of involving people with additional care and communication needs. Despite a range of approaches being used, there is little understanding about how best to incorporate their experiences, and those of other care home stakeholders, into the design and conduct of research.
Objective
A systematic review was conducted to identify PPI methods that better meet the specific needs of care home stakeholders. This was undertaken by i) outlining effective PPI approaches used in care home research and the key stakeholders involved; ii) describing the role of PPI in different care home contexts and iii) identifying stakeholders’ experiences and attitudes towards PPI in care homes.
Methods
Databases CINAHL, Embase, MEDLINE, PsycINFO and Scopus were searched for English language papers from inception to November 2021. A narrative synthesis approach was utilised to organise the extracted data into five themes.
Results
The search initially yielded 2314 articles (following de-duplication), with 27 meeting the inclusion criteria. Articles reported a range of input from stakeholders (including residents, staff, relatives and community stakeholders), with the impact of PPI varying according to the type of care establishment and research context. The experiences and reflections of stakeholders’ about their involvement in care home research was explored at differing levels. Some articles explicitly evaluated the effectiveness of the PPI approach using specific outcome measures whilst others indirectly described the impact of their approach. Five themes were identified as characterising an effective PPI approach: i) valuing stakeholders’ perspectives, ii) awareness of the multi-faceted research context, iii) ensuring inclusivity and transparency, iv) maintaining flexibility and adaptability and v) utilising resources and wider support.
Conclusion
Effective PPI in care home research requires researchers to create person-centred opportunities to adequately involve groups with physical and cognitive impairments. The findings led to the creation of evidence-based practical recommendations to support future involvement opportunities and help researchers develop strategies for inclusive opportunities for involvement.
Systematic Review Registration:
The review was prospectively registered on PROPSERO (CRD42021293353).
Implementation of Construction Automation and Robotics (CAR) in Indonesian Construction State-Owned Enterprises: Position in Project Life Cycle, Gap to Best Practice and Potential Uses
Authors: Tanne Yongki Alexander , Indrayani Ni Luh Ayu
Published: January 2023

Construction Automation and Robotics (CAR) is the anticipated technology to overcome productivity issues and work accidents, especially in developing countries. This research analyzes the implementation of CAR at Indonesian Construction SOEs from the perspective of real project implementation based on PLC, comparison with best practices, and potential uses, through the qualitative analysis of the literature as well as questionnaires and in-depth interviews. The results are compared qualitatively to obtain answers to the research objectives. This research identifies that seven Indonesian Construction SOEs have been using CAR technology, where Unmanned Aerial Systems (Drones), Virtual Reality (VR), and Prefabrication and Modularization are the most popular and mostly implemented in the construction phase. Compared to best practice, CAR implementation is still in the adoption stage. It has not reached its full potential through the development stage due to insufficient collaboration between contractors, technology companies, and universities. Although the construction market in Indonesia has not directly demanded CAR application, this technology is potentially considered to improve the completion of construction projects, especially the interaction prospect of Digital Twin (DT) and BIM. This study provides complete positional information on CARs type in the PLC in theory and practice as a benchmark for CAR research. This study fills the research gap and pioneering Indonesia’s CAR research in international journals and provides the latest and comprehensive overview of CAR implementation in Indonesia compared to best practices (USA and China).
Meta-model of Human Recognition-behavioral Adaptation System
Authors: Masuda Yutaka
Published: January 2023

Single-model is defined to an informative representation for identifying a property of a target object/phenomenon, and meta-model integrates the relevant single-models to explain phenomenological realities in the different aspects. Scientific modeling is a syllogistic system of definitive premise, sound inference and consistent explanation to understand, define, quantify, visualize or simulate feature of the target. Human recognition-behavioral adaptation is an information-metabolism system to maintain homeostasis of human-self, and that has been investigated in the different aspects. I analyzed Human recognition-behavioral adaptation system via scientific modeling. Neurological meta-model of Human recognition-behavioral adaptation system was constructed as complex-network of the neuronal modules, and the meta-model was integrated to Mentality-model in the psychiatric aspect, and to Personality-model in the psychological aspect. The integrated models successfully explained phenomenological realities in the aspects. From the above results, I comprehended that the neurological meta-model is the core of Biopsychosocial model integrating the biological, psychological and socio-environmental factors.
Adherence to Iron-Folic Acid among Pregnant Women Attending Antenatal Care at Wolaita Zone Public Primary Hospitals in Southern Ethiopia, 2022
Authors: Geta Temesgen , Ashiko Adisu , Tilahun Cherinet
Published: January 2023

Background: Among the micronutrient deficiencies, iron and folic acid are the most common and frequently occur in pregnant women. So, the objective of this study was to assess the adherence to iron and folic acid among pregnant women booking antenatal services in the study area.
Methods and materials
A facility-based cross-sectional study design was employed from January – April 2022. A structured questionnaire was used for data collection using systematic sampling techniques to approach 327 pregnant women. Data was entered and analyzed using SPSS version 20 software. Descriptive analysis was performed. Adjusted odd ratios, along with corresponding 95% confidence intervals, were used and the level of statistical significance was declared at a p-value of <0.05 with a corresponding 95% CI.
Result: In this study, 339 (99%) pregnant women participated. The respondents' average age was 28.04 SD 5.3 years. The prevalence of adherence to iron and folic acid supplementation among pregnant women was 68.1% (95% CI: 63.1–72.9). Mothers whose age less than 19 [AOR = 0.025; CI 95% (0.003, 0.218)], daily laborers [AOR = 0.127; CI 95% (0.028, 0.568)], and who had no history of abortion [AOR=0.276; CI 95% (0.086, 0.891)] were associated with adherence to iron-folic acid supplementation.
Conclusion: In this study, adherence to IFA supplementation among pregnant women in the study area is relatively high. Appropriate counseling, and health education should be given to pregnant women to enhance their adherence.
The Effect of Professional Films on Professional Pride in Nursing Students-Randomized Controlled Study
Authors: Ozdemir Cevriye , KABUK Ayse
Published: January 2023

The authors have requested that this preprint be removed from Research Square.
The Computational Study of Pb-based Buckyballs Behavior as Radiation Protectors for Uranium-based Compounds: Molecular Dynamics Approach
Authors: Panah Mohammad Pour , Sabetvand Roozbeh
Published: January 2023

In this computational research, the atomic behavior of Pb-based buckyballs (such as Pb500, Pb540, and Pb720) for uranium-based compounds (such as O0.12U0.88, O2.34U, and F6Na2U) radiation protection introduced using Molecular Dynamics (MD) approach for nuclear applications. The outputs of this computational simulation approach is reported by kinetic energy, atomic volume, interaction force and interaction energy of defined samples. Computationally, uranium-based compounds modeled by Universal Force Field (UFF) and Embedded Atom Model (EAM) used for Pb-based structure. Simulation results shows the potential energy of simulated structures reached to a negative value after 5 ns. This calculation indicated the atomic stability of modeled nanostructures at T = 300 K and P = 1 bar as initial condition (standard condition). Furthermore, simulation results shows the Pb500, Pb540, and Pb720 buckyballs have appropriate performance for radiation protect procedures. Numerically, by using (mixing) these buckyballs, the kinetic energy of detector ion (He ion) converged to 0.42 eV. Also interaction energy/force between uranium-based compound and Pb-based structures decreases to 1.36eV / 1.61eV/Å value.
Assessment of Concentrations of Heavy Metals in Three Leafy Vegetables Irrigated with Wastewater in Hadnet District, Mekelle, Ethiopia
Authors: Tekle Hailekiros Tadesse , Sbhatu Desta Berhe , Gebreyohannes Gebreselema
Published: January 2023

Objective
Urban and peri-urban agriculture is being promoted as a sector of livelihood and economic activities in many parts of the world including Ethiopia. Mekelle city is one of the Ethiopian cities suitable for urban and peri-urban agriculture for cultivating leafy vegetables using wastewater. The consumption of unprocessed and processed leafy vegetables is also very high in the city. However, the quality of the produces has been of a great public health concern. Thus, this study was aimed to investigate the quality of wastewaters in Hadnet district of Mekelle used to irrigate lettuce, spinach and cauliflower and the safety of the vegetables in terms of accumulation heavy metals.
Result
Wastewater samples collected from four experimental sites in the district were found to have higher concentrations in 4 (i.e., Cd, Cr, Cu, and Mn) of the 10 heavy metals tested than the permissible limit estbalished by the FAO (1985). Interestingly, spring water samples collected from another district called Kallamino, designated as comparison site, also have higher concenterations in 4 (i.e., Al, As, Cd, and Cu) of the 10 heavy metals tested. But the leafy vegetables grown in the least contaminated experimental site was found to have higher concentrations in 6 or 7 of the 10 heavy metals tested. Vegetables grown in the comparison site were nearly clean. The lettuce and spnach had elevated concentration of As and Al, respectively. While the fast growing lettuce has higher accumulation of the heavy metals, the slow growing cauliflower had lower accumulation. Such elevated accumulaion of heavy metals in these vegetables could be due to the presence of higher soil contamination and enahnced bioaccumulation capacity of the plants.
Conclusion
The wastewater used to irrigate vegetable farms in Hadnet district of Mekelle is not safe enough. More importantly, the soils of the farms might have accumulated far more amount of heavy metals. The lettuce, spinach and cauliflower cultivated there are highly contaminated. Thus, the use of wastewater for irrigating urban and peri-urban farms need to be regulated, the suitability of the soils of the farms need to be examined, and consumers of these leafy vegetables need be cautious.
Three-Dimensional Reconstruction of Coronal Features: a Python Tool for Geometric Triangulation
Authors: Nisticò Giuseppe
Published: January 2023

The determination of the three-dimensional (3D) geometry of coronal features is important for understanding the magnetic structuring of the solar atmosphere. In this context, the length of a coronal loop, which is subject to standing transverse oscillations, is a crucial parameter in coronal seismology for the correct estimation of the phase speed of the wave and, consequently, of the Alfvén speed and coronal magnetic field strength. Simultaneous space-based observations of the solar corona from different vantage points, e.g. one from the Solar Dynamics Observatory (SDO) and the second from the Solar TErrestrial RElations Observatory (STEREO), have permitted the reconstruction of the geometry of coronal loops. Nisticò, Verwichte, and Nakariakov (2013) proposed a method based on principal component analysis for fitting an ensemble of 3D points that sample a coronal loop. This method was shown to retrieve easily the main geometric parameters that define a loop, such as the loop axes and the loop plane. In this article, an extension of that work is presented that includes a Python tool for performing geometric triangulation of coronal features seen by two different observers.
Sensitive and efficient surveillance of Japanese giant salamander (Andrias japonicus) distribution in Western Japan using multi-copy nuclear DNA marker
Authors: Hidaka Shunsuke , Jo Toshiaki , Yamamoto Satoshi , Katsuhara Koki , Tomita Sei , Miya Masaki , Ikegami Makihiko , Ushimaru Atushi , Minamoto Toshifumi
Published: January 2023

Japanese giant salamander (Andrias japonicus) is one of the largest amphibian species in the world and an iconic species in Japan. However, as its distribution has recently declined across the country, rapid and extensive monitoring of its distribution is urgently required for its efficient conservation. Here, we used environmental DNA (eDNA) analysis to assess the distribution of Japanese giant salamanders in Western Japan; 410 water samples were collected from 12 rivers. We then developed a new eDNA assay for multi-copy nuclear DNA (nuDNA) of the giant salamander and compared the eDNA detectability of the nuDNA marker with that of the mitochondrial DNA (mtDNA) marker. Throughout the survey, we detected the target eDNA from 162 water samples using either of the markers, which generally corresponded to the known natural distribution range of the species. Additionally, the use of a nuDNA marker allowed for higher detectability and site-level occupancy probability of the target eDNA than the mtDNA marker. Moreover, the detectability of target eDNA decreased substantially in water samples with higher conductivity and partly in those with higher pH, indicating its negative impact on the salamander’s ecology. The results demonstrated that eDNA analysis with a multi-copy nuDNA marker is highly useful for efficient and sensitive surveillance of the distribution of Japanese giant salamander. Our study provides fundamental resources and methodology for monitoring their distribution using eDNA analysis and facilitating their conservation.
Epigenetics and Field Cancerization the Caveats of Carcinogenesis and Recurrence of Gastrointestinal Malignancies – A Systematic Review and Meta-analysis Protocol
Authors: Kyaruzi Victor Meza , Md Emmanuel , Abdelhammed Ahmed , Suvvari Tarun Kumar , Manemugabe Tumusifu , Davis Banturaki , Sakaiwa Neontle , Hammoud Zeinab , Tango Tamara , Djatche Wesley H.B , Phiri Emmanuel Chileshe , Tunde Olabatoke , Waffa Zuraiha , Ngamba Ramadhani , Elamin Zobidah , Khamisi Ramadhani , Mwanga Ally , Shimber Emnet , Mfinanga Sayoki , Mwakigonja Amos , Dodgion Christopher
Published: January 2023

Background
Gastrointestinal malignancies constitute the most common neoplasms with increasing prevalence worldwide, which portend a dismal morbidity and higher mortality rate. Epigenetic phenotypes and field cancerization impute a cutting edge for precursor of several gastrointestinal malignancies, this genetic aberration have been critically implicated in tumorigenesis and recurrence of gastrointestinal malignancies. There has been a paucity of knowledge about the interface effect between epigenetic signatures, epigenetic phenotype and field cancerization for carcinogenesis and recurrence of disease, a comprehensive analysis on the interplay of these biomarkers would streamline the strategy for epigenetic screening and chemoprevention therapy of gastrointestinal malignancy. This systematic review aims at assessing the effect of epigenetics and field cancerization on carcinogenesis and recurrence of gastrointestinal malignancies.
Methods and Analysis
This Systematic review and Meta-analysis will administer the provisions of Preferred Reporting Items for Systematic Review and Meta-analysis (PRISMA) 2020 guideline and the review protocol will be submitted to PROSPERO review registry for registration. The literature search will be executed through several electronic databases including EMBASE, PubMed, Scopus, Web of Science, Cochraine , Global index medicus , semantic scholar and google scholar . All original research articles reporting on the effect of epigenetic signatures, epigenetics and field cancerization on the carcinogenesis and recurrence of gastrointestinal cancers in adults will be included. Only articles with NOS score above 4 and Low ROB based on D1-D5 for RCTs will be included for a Meta-analysis.
Ethical Consideration and Dissemination
There is no involvement of human subject participation in this review thus giving no effect to ethical implication .The evidence report of this review will be disseminated on scientific conferences and will be published to a reputable journal of gastroenterology oncology. This review has been registered at PROSPERO registry ID CRD 42023391339
Effect of Dividend Policy on Share Price Movement: Focusing on Companies Listed on the Nigerian Stock Exchange Market
Authors: Kayode I. Kadiri , Gbenga Olorunmade , Ayobami Raji Lukmon
Published: January 2023

This study examined the relationship between dividend policy and share price movements with evidence from firms listed on the Nigerian Stock Exchange. A systemization literary approach for data analysis was panel regression analysis and Generalized Methods of Moments (GMM). Panel data covering the year 2011-2020 were obtained from the financial statements of twenty firms listed on the Nigerian stock exchange. It was discovered that dividend yield has negative relationship with share price movement. It was discovered that Dividend yield has negative and significant relationship with Share price. It was revealed thatfirms’ size has positive and significant relationship with stock price volatility. The study therefore recommends that the stakeholders of quoted firms must make sure that percentage of earnings disbursed as dividends to shareholders have good influence on the value of the company’s common stock at the stock market on a continuous base. It was recommended that Stake holders should ensure that the ratio of a quoted company’s annual dividend compared to its share price have good influence on the value of the company’s common stock at the stock market on a frequent base. Also, the stake holders of quoted firms must map out strategies of increasing their sizes in terms of asset, branch creation etc., this will increase patronage and profit of quoted firms which can have good influence on the value of the company’s common stock at the stock market.
Technology Goes to Classroom: Learning Media Application Possibilities for Writing
Authors: Abidah Khilda Husnia
Published: January 2023

It is undeniable that teaching writing needs a lot of media as it can motivate the students in producing good writing. Moreover, nowadays, most of higher education uses technology for having the easier and more efficient in teaching and learning process. Hence, it is undeniable that the teachers should utilize some learning media applications during their teaching. However, the teacher still faces some difficulties in choosing the appropriate learning media for teaching writing which makes the learning process not run well. This article aimed to review some learning media application possibilities that finally can be used as the pedagogical implications for the teachers in choosing the appropriate media used for writing in hybrid classrooms. Furthermore, as a result, the researcher found that Schoology, Padlet, Facebook, Edmodo, and Google Classroom are the appropriate learning media applications that the teachers in the writing classroom can use. It is because those media are easy to be operated and motivate students in writing. Therefore, those can be selected by the teachers for their teaching writing.
Membudayakan Literasi melalui Model Pembelajaran Batu-Basah pada Siswa di Sekolah Dasar di Sungai Pinang Samarinda
Authors: Mulyati Sri
Published: January 2023

Abstract

This study aims to improve the reading culture for early grade students by using the Batu-Basah learning model where the implementation of the action is carried out for 3 days, the problem that occurs at this time is the lack of student reading interest, especially non-textbooks so that researchers will carry out learning using the Batu- model. Wet and implemented for three days. This research method is a descriptive qualitative method where data sources are taken from research results and secondary data from research results that have been published in journals, the data analysis technique used is data reduction which concludes the research results related to (observation results, student activity sheet results and student presentations). The results of this study were that on the first day of observation, it showed that some students still looked less enthusiastic in participating in activities. The second day and the third day of the observations showed that the students' reading interest had increased, this could be seen from the enthusiasm of the students in participating in this literacy activity. Based on the results of the research that has been done, it can be concluded that the Batu-Basah learning model is able to improve the reading culture and courage of class II A students of SDN 007 Sungai Pinang.

 

Abstrak

Penelitian ini bertujuan untuk meningkatkan budaya membaca bagi siswa  kelas awal dengan menggunakan model pembelajaran Batu-Basah dimana pelaksanaan tindakan  dilaksanakan selama 3 hari, permasalahan yang terjadi saat ini adalah kurangnya minat baca siswa terutama buku non pelajaran  sehingga peneliti akan melaksanakan pembelajaran dengan menggunakan model Batu-Basah dan diimplementasikan selama tiga hari. Metode penelitian ini adalah metode kualitatif deskriptif dimana sumber data diambil dari hasil penelitian dan data sekunder dari hasil penelitian yang telah diterbitkan ke dalam  jurnal, teknik analisis data yang digunakan adalah  reduksi data yang menyimpulkan hasil penelitian terkait dengan (hasil observasi, hasil lembar aktivitas siswa dan  presentasi siswa). Adapun hasil dari penelitian ini adalah pada hari pertama observasi menunjukan bahwa sebagian siswa masih terlihat kurang bersemangat dalam mengikuti kegiatan. Hari kedua dan hari ketiga hasil observasi menunjukkan  bahwa minat baca siswa mengalami peningkatan, hal ini terlihat dari antusias siswa dalam mengikuti kegiatan literasi ini. Berdasarkan hasil penelitian yang telah dilakukan dapat disimpulkan bahwa model pembelajaran Batu-Basah mampu meningkatkan budaya baca serta keberanian siswa kelas II A SDN 007 Sungai Pinang.
Pengaruh pembagian kelas terhadap motivasi belajar berbicara pada mahasiswa PBA IAIN Samarinda
Authors: Mustamin Mustamin , Syarifaturrahmatullah Syarifaturrahmatullah , Fitri Siti Nur Annis
Published: January 2023

Motivasi siswa akan lebih meningkat apabila suasana kelas yang kondusif dan menyenangkan. Peran guru sebagai fasilitator dan motivator harus mampu membangkitkan gairah belajar siswa dan membutuhkan motivasi belajar siswa. Untuk mewujudkan hal tersebut, perlu adanya pengaturan terhadap pengelompokan kelas peserta didik, baik yang berdasarkan fungsi persamaan maupun yang berdasarkan perbedaan. Proses kemampuan berbicara dalam bidang bahasa arab tidaklah mudah, pada dasarnya bahasa merupakan kebiasaan dan merupakan suatu kegiatan yang menarik. Akan tetapi bisa berubah menjadi sebaliknya, disebabkan perasaan malu, tidak termotivasi dan minimnya kosa kata dan pola kalimat pada peserta didik. Penelitian ini bertujuan membahas tentang bagaimana pengaruh pengelompokan kelas terhadap motivasi belajar kalam pada Mahasiswa Pendidikan Bahasa Arab IAIN Samarinda Angkatan 2018. Populasi dalam penelitian ini yaitu seluruh mahasiswa pendidikan Bahasa arab pada Angkatan 2018 yang berjumlah 70 siswa. Teknik pengumpulan data dalam penelitian ini adalah angket. Kemudian data yang terkumpul dalam penelitian ini dianalisis dengan teknik korelasi product moment berbantuan program SPSS Person 22. Berdasarkan analisis data maka diperoleh hasil sebagai berikut: Pertama, pengelompokan kelas pada mahasiswa pendidikan Bahasa arab dengan 70 responden ada 15 responden menjawab pengelompokan kelas pada mahasiswa pendidikan Bahasa arab baik,43 responden menjawab cukup, dan 12 yang menjawab rendah. Kedua, motivasi belajar kalam pada mahasiswa pendidikan Bahasa arab ada 14 responden termasuk dalam kategori memiliki motivasi belajar kalam yang baik, 41 termasuk dalam kategori cukup dan 15 yang temasuk dalam kategori memiliki motivasi yang kurang. Ketiga, terdapat pengaruh yang signifikan antara pengelompokan kelas dan motivasi belajar kalam pada mahasiswa pendidikan Bahasa arab IAIN Samarinda Angkatan 2018. Hal ini terbukti dari hasil penelitian menunjukkan bahwa ternyata nilai signifikansi dari kedua variabel diperoleh 0,000 < 0,05, sehingga dapat disimpulkan bahwa kedua variabel berkorelasi. Kemudian nilai pearson correlation pada pengelompokan kelas memiliki nilai yang positif yaitu 0,829 dan untuk motivasi belajar kalam memiliki nilai yang positif yaitu 0,829. Maka berdasarkan pedoman derajat hubungan 0,80-1.000 termasuk dalam kategori yang sangat kuat, sehingga correlation sebesar 0,829 termasuk dalam kategori sangat kuat. Setelah dilakukan perhitungan dan analisis data, maka hasil penelitian ini menunjukkan bahwa terdapat pengaruh yang signifikan antara pengelompokan kelas terhadap motivasi belajar kalam pada Mahasiswa Pendidikan Bahasa Arab IAIN Samarinda Angkatsan 2018.
KRİPTO PARALARLA İLGİLİ MİRAS HUKUKUNA ÖZGÜ TEMEL MESELELER
Authors: TURAN BAŞARA Gamze
Published: January 2023

Kripto varlıkların bir türü olan kripto paralar, açık kaynaklı bir kod olarak üretilmiş, şifreleme teknolojisi ile korunan ve dağıtılan sanal para birimleridir. Dijital dünyada yaşanan gelişmelerle birlikte ortaya çıkan kripto paraların kullanımı, tüm dünyada olduğu gibi ülkemizde de yaygınlaşmaktadır. Özellikle yüksek kâr elde etme yönündeki reklamlar, kripto paralara olan ilgiyi artırmakta ve her geçen gün daha fazla kişi kripto para edinmektedir. Ancak Türk hukukunda kripto paralar hakkında kapsamlı bir düzenlemenin olmaması nedeniyle kişinin ölümünde malvarlığında kripto paraların mevcut olması, miras hukuku bakımından çeşitli hukuki meseleleri gündeme getirmektedir. Bu çalışma kapsamında uygulamada kripto paralar hakkında miras hukuku bakımdan ortaya çıkabilecek meselelere ilişkin olarak özellikle şu soruların yanıtlanması hedeflenmektedir: Kripto paralar hukuki açıdan nasıl nitelendirilmeli ve bu nitelendirme kripto paraların miras yoluyla intikali bakımından ne anlama gelir? Mirasbırakan kripto para birimlerinin mirasçılara intikalini nasıl sağlayabilir? Kripto paraların mirasbırakan tarafından sağlararası karşılıksız kazandırmaya konu edilmesi halinde tenkis talebi, hangi koşullar altında, kime karşı ileri sürülebilir? Terekenin değerinin tespitinde kripto paraların piyasa değeri nasıl hesaplanabilir?
Examining contagion effects between global crude oil prices and the Southeast Asian stock markets during the COVID-19 pandemic
Authors: Thi Ngoc Nguyen Mien
Published: January 2023

Many previous studies identify the contagion effect among various types of assets, defined as the increase in correlation of these assets during a financial or economic crisis. During the COVID-19 outbreak, a historic fall in global fuel demand and oil prices has been witnessed. Because crude oil has a strategic position among the export products of the Southeast Asian economies, even a tiny global oil price change leads to a plunge in these stock markets. This study addresses the spillovers of the volatility between the West Texas Intermediate crude oil prices and stock indices across six ASEAN emerging economies. Besides, the study examines whether a contagion connecting the global energy prices and these stock markets exists during the coronavirus pandemic. The empirical results are acquired by applying the Bayesian test for equality of means on the dynamic conditional correlations computed from DCC-GARCH models. The findings present positive volatility transmission from crude oil prices toward these emerging equity markets. During the health crisis, co-movements intensify, indicating the occurrence of contagion effects. The empirical results provide valid implications for policymakers and international investors because a precise volatility forecast is vital for managing portfolio risk.
AcknowledgmentThis research is funded by University of Economics Ho Chi Minh City, Vietnam.
Oxidative stress, neurotoxicity, and intestinal microbial regulation after a chronic zinc exposure: an experimental study on adult zebrafish (Danio rerio)
Authors: Yuan Zixi , Li Ruixuan , Li Shuangshuang , Qiu Denggao , Li Guanyi , Wang Chun , Ni Jiajia , Sun Yingxue , Hu Hongying
Published: January 2023

Zinc is one of the heavy metals present in textile wastewater with high concentrations. However, the chronic toxic effects of zinc on aquatic vertebrates are still ambiguous. Zinc accumulation in zebrafish after chronic zinc exposure and toxic effects on the intestines, muscles, and gills were investigated in this study. The results showed that a significant accumulation of zinc in the intestine, muscle, and gill was observed after 25 d of zinc exposure. The toxic effects of zinc were mainly in the form of zinc-induced oxidative stress in zebrafish, potential neurotoxicity, and changes in intestinal microbes. Significant changes in the levels of superoxide dismutase, catalase, metallothionein, glutathione, and malondialdehyde indicated that zinc damaged the antioxidant system of adult zebrafish. Zinc exposure resulted in a significant decrease in acetylcholinesterase activity and abnormal neural signaling. Furthermore, zinc exposure resulted in increased intestinal microbial richness and decreased the Simpson index in adult zebrafish. At the phylum and genus levels, the predominant microbes in the intestine are altered by zinc. In summary, this study provides an analysis of the toxic effects of chronic zinc exposure on adult zebrafish and the potential mechanisms, which are important for assessing the dual effects of zinc on aquatic organisms.
Photonic Crystal Instruments
Authors: Butt Muhammad A.
Published: January 2023

 Photonic crystals (hereafter represented as PCs), a synthetic dielectric
formation that employs periodic and random changes in the refractive index to control
the transmission of light, were presented by Yablonovitch and John in 1987. The
capability to change the transmission of the electromagnetic wave in these formations
on a miniature scale is used by photonic devices built on PCs. Electromagnetic waves
scatter within the PC, and destructive intrusion happens at particular wavelengths,
resulting in a photonic bandgap like the energy bandgap of electron waves in a
semiconductor (hereafter denoted as SC). Because of the possibility of constructing a
photonic bandgap, it may be feasible to influence light transmission. Instruments with
tiny footprints are also feasible. In recent years, several fascinating PC-based devices,
such as sharp bent waveguides (henceforth denoted as W/G), μ-resonator cavities, and
Y-branches, have been demonstrated. These remarkable properties have the potential to
result in the growth of a dense integrated circuit. Though PC technology is still in its
infancy, and more study is needed in this field, this chapter summarizes recent
developments in this sector by presenting the utmost frequent and necessary optical
devices established on PCs such as optical logic gates, optical power splitters,
polarization splitters, sensing devices, and lasers. In comparison to conventional
photonic devices, these devices have greater efficiency and a small footprint. 
Pressure Dependent Reflectance and Transmittance Properties in 1D- Photonic Crystal Containing Germanium (Ge)
Authors: K Srivastava Sanjeev , Sharma Yogesh , Ahmad Beig Mirza Tanweer
Published: January 2023

In this work, we theoretically investigate and study the effect of hydrostatic
pressure on the reflectance and transmittance properties of the one-dimensional PC (1D
PC) containing germanium (Ge). In the present study, we first take a 1D PC structure
composed of alternate layers of germanium (Ge) and air having a finite number of
layers. In the second case, we take the same structure by breaking its periodicity such
that each part of it acts as the mirror image of each other. The Refractive index of
germanium varies under the applied pressure, therefore both reflection bands and
transmission modes change with the applied pressure. In order to calculate
transmittance and reflectance spectra of the proposed PC, the transfer matrix method
(TMM) has been used. It has been observed that by increasing the hydrostatic pressure,
the width of the reflection band decreases and the position of reflection bands shifts
towards the lower side of wavelength. Further, the transmission modes of the
considered PC structure are blue shifted with the increase in applied hydrostatic
pressure and show high sensitivity with it. 
Revolutionary Future Using the Ultimate Potential of Nanophotonics
Authors: Khan Sumaya , Sharma Ishu
Published: January 2023

As the world is modernizing, it is noteworthy to mention photonics and its
categorization based on size. Despite the components of light being invisible to the
human eye, nature never ceases to amaze us with its idiosyncratic phenomenon.
Furthermore, the manipulation of the matter is confined to the nanoscale as a part of the
progression. Adding nanotechnology to photonics emerges out as nanophotonics which
is the cutting-edge tech of the twenty-first century. Human beings have acclimated to
the concept of photonics, furthermore, nanophotonics is the science of miniaturization
study, potentially helping the technology to modify itself into the sophistication of the
equipment and thereby be of assistance in various disciplines of science and
technology. One can illustrate nanophotonics by considering the fabrication processes
of nanomaterials. In variegated applications, these nanoscale processes will refine and
produce structures with high precision and accuracy. Meanwhile, groundbreaking
inventions and discoveries have been going around, from communications to data
processing, from detecting diseases to treating diseases at the outset. As one stresses on
the idea of nanophotonics, it never reaches a dead-end, however, this explains how vast
the universe and each of the components co-existing are infinitesimally beyond
humans' reach. Nevertheless, nanophotonics and its applications bring about
remarkable multidisciplinary challenges which require proficient and well-cultivated
researchers. Despite the fact it has several advantages, it carries its downside, which
requires a detailed analysis of any matter. Using state-of-the-art technology, one can
constrict light into a nanometer scale using different principle methodologies such as
surface plasmons, metal optics, near field optics, and metamaterials. The distinctive
optical properties of nanophotonics call out specific applications in the electronics field
such as interaction chips, tiny devices, transistor filaments, etc. When compared to
conventional electronic integrated circuits, the pace at which data using nanophotonic
devices is sent is exceptionally fast, accurate, and has a better signal processing
capability. As a result of the integration of nanotechnology with photonic circuit
technology, high-speed data processing with an average processing speed on the order
of terabits per second is possible. Furthermore, nano-integrated photonics technology is
capable of comprehensive data storage and processing, which inevitably lays the
groundwork for the fabrication, quantification, control, and functional requirements of
novel optical science and technology. The majority of applications include nanolithography, near-field scanning optical microscopy,
nanotube nanomotors, and others. This explains about the working principle, different
materials utilized, and several other applications for a better understanding.
Nanotechnology/Nanosensors for the Detection of Pathogens
Authors: Ahmed B.
Published: January 2023

Early and accurate detection of pathogen is an important key to prevent and treat pathogen originated health issues. Conventional diagnostic methods are relatively laborious, time-consuming, costly, and require sophisticated instruments. To overcome the limitations of traditional instruments, nanosensors have emerged as a promising alternative. Due to their easy fabrication, high surface-to-volume ratio, and great biocompatibility, nanosensors have been shown to be an ideal technique for sensing. Herein, we provide an overall impression of the application of different types of nanosensors in disease diagnosis, and in the monitoring of water and food quality along with their probable future orientations.
Nanomaterials in Machine Learning Based Prosthesis
Authors: Salwan D.
Published: January 2023

Machine learning has found its application in various fields. With the advent of technology, it has even found its way in the prosthesis field as doctors are using nano materials to conduct surgery in amputees and predicting the results of the surgery with the help of machine learning. The same techniques have also been successfully applied within the medical field, in addressing diverse clinical applications such as interpreting electrocardiograms, detecting dementia, cardiovascular diseases, or predicting the prognosis and survival rates for breast cancer or melanomas. By adopting Machine Learning Techniques (MLT) into medical analysis, diagnostic accuracy is increased, costs are reduced, and human resources are saved. To date, the effectiveness of MLTs for enhancing joint implant design has not been examined. Our goal of this paper is to check the role nanomaterials play during the design of a machine learning based prosthesis.
Effect of Substitution on the Dielectric and Magnetic Properties of BaFe12O19
Authors: Kumar H.
Published: January 2023

Hexaferrites are composed of irons and many other divalent metal ions in various atomic ratios. They are classified as M, W, X, Y, Z, and U type according to the crystalline structure. They are also used as ferromagnetic compounds. These materials have been utilized as the permanent magnets, magnetic recording media and microwave absorbers due to their superior properties. These materials also have wide application in ferrofluids, sensors, loudspeakers, electric power generation, rotors in small direct current (DC) motors, automotive electronics, ferrite cores, fabrication of inductors, micro electro mechanical systems (MEMS), capacitors, transistors, microwave, and in magneto static and electromagnetic devices. BaFe12O19 has gain focus in recent years due to its large coercivity, high magneto crystalline anisotropy, relatively large saturation magnetization, electrical resistivity, low cost, and ability to resist corrosion. The Present chapter will focus on the effect of substitution on the dielectric and magnetic properties BaFe12O19. Morphology and properties of barium hexaferrites, effect of Co-Ti substitution on magnetic properties of nanocrystalline BaFe12O19 and effect of rare-earth materials substitution on the micro structural and magnetic properties of BaFe12O19 are covered.
Studi Penilaian Indeks Kinerja Irigasi Dan Angka Kebutuhan Nyata Operasi dan Pemeliharaan (AKNOP) pada Daerah Irigasi Ngajum Kecamatan Ngajum Kabupaten Malang
Authors: Fathinun Najib  , Asmaranto Runi , Dermawan Very
Published: January 2023

Strategi peningkatan produksi pangan dibutuhkan untuk memenuhi kebutuhan pangan yang semakin bertambah, salah satunya dengan pembangunan dan rehabilitasi jaringan irigasi. Agar keberlangsungan aset irigasi yang sudah dikelola dapat bertahan, maka harus dilakukan evaluasi secara berkala sesuai dengan Peraturan Menteri (Permen) No. 23 tahun 2015 tentang Pengelolaan Aset Irigasi. Dari hasil survei yang dilakukan di Daerah Irigasi (D.I) Ngajum, ditemukan 6 titik kerusakan yang terdiri dari 4 kerusakan lining saluran, dan 2 saluran yang dipenuhi oleh tanaman liar, sampah dan sedimen. D.I Ngajum mendapatkan nilai indeks kinerja sebesar 77,10% dan masuk ke kategori kondisi sedang (60-79%) dengan nilai aspek prasarana fisik senilai 36,29%, aspek produktivitas tanaman senilai 14,51%, aspek sarana penunjang Operasi dan Pemeliharaan (O&P) senilai 7,38%, aspek organisasi personalia senilai 8,72%, aspek dokumentasi senilai 4,10%, aspek Perkumpulan Petani Pemakai Air (P3A) senilai 6,10%. Angka Kebutuhan Nyata Operasi dan Pemeliharaan (AKNOP) yang didapatkan dari hasil perhitungan pada D.I Ngajum sebesar Rp. 235.172.711,00.
A strategy to increase food production is needed to fulfill the increasing demand for food, one of which is the construction and rehabilitation of irrigation networks. For the sustainability of irrigation assets that have been managed to survive, periodic evaluations must be carried out according to Ministerial Regulation  No. 23 of 2015 concerning the Management of Irrigation Assets. From the results of a survey conducted in the Ngajum Irrigation Area, 6 damage points were found consisting of 4 damage to the channel lining, and 2 channel filled with weeds, plastic waste, and sediment. Ngajum Irrigation Area got a performance index score of 77.10% and categorized into the moderate condition category (60-79%) with a physical infrastructure aspect value of 36.29%, a plant productivity aspect of 14.51%, an Operation, and Maintenance support facility aspect (O&M) of 7.38%, personnel organization aspect of 8.72%, documentation aspect of 4.10%, Association of Water User Farmers of 6.10%. The real Cost Value of Maintaining and Operating Irrigation obtained from the calculation outcomes at Ngajum Irrigation Area is Rp. 235,172,711.00.