bluuebunny/crossref_metadata_2025 huggingface dataset:
Evaluation of copper salivary level in oral squamous cell carcinoma, occupationally copper exposed, and its normal population and its association with cytomorphologic changes of oral mucosa
Authors: Torabinia Nakisa , Aghakouchakzadeh Arezoo , Kargahi Neda , Motamedi Alireza
Published: July 2023

Background:

Oral squamous cell carcinoma (SCC) is one of the most common malignancies in oral cavity. Hence, presenting methods for early diagnosis and find the etiologic factors of oral SCC are important. Saliva analysis can be used to discover various conditions because of its noninvasive methods. Copper as a useful metal has been used by men since ancient times. The level of copper increases when the cancerous changes occur in addition to biopsy, an alternative method for examining oral lesions is exfoliative cytology. The primary objective of this study was to determine the salivary copper level and cytomorphologic changes of oral mucosa among three study groups.

Materials and Methods:

This cross-sectional study included 15 individuals with oral SCC, 15 workers exposed to copper, and 15 healthy individuals. Saliva samples were collected and analyzed by atomic absorption spectrophotometer. The exfoliative smears were prepared by brush biopsy and stained by Papanicolaou and argyrophilic nucleolar organizer region (AgNOR) staining methods. Data analysis using one-way ANOVA and Kruskal–Wallis test. P < 0.05 was considered significant.

Results:

There was a significant difference in mean salivary copper (P = 0.008), cytomorphology of oral mucosa, and AgNOR among the three groups (P < 0.001).

Conclusion:

The results suggested that occupational exposure to copper increases the salivary levels of this element and causes changes in mucosal cells. Since this increase was very high and evidence of nuclear activity was seen in this group and in oral SCC patients, exposure to copper should be considered an important risk factor for oral mucosal changes.
Postoperative pain after endodontic treatment of mandibular molars with two different instrumentation techniques: A randomized clinical trial
Authors: Nouroloyouni Ahmad , Lotfi Mehrdad , Shahi Shahriar , Rahimi Saeed , Noorolouny Sara , Milani Amin Salem
Published: July 2023

Background:

This study compared postoperative pain after endodontic treatment of mandibular molars with asymptomatic irreversible pulpitis with the RaCe rotary system and the crown-down versus the step-down technique.

Materials and Methods:

In this randomized clinical trial, 70 mandibular 1st and 2nd molars with asymptomatic irreversible pulpitis and normal periradicular state were randomly assigned to two groups for single-visit endodontic treatment with RaCe rotary system and the crown-down and the step-down technique (n = 35). Postoperative pain was assessed at 6, 12, 24, 48, 72, and 168 h postoperatively, using a Visual Analog Scale. Data were analyzed using SPSS 17 by repeated measures ANOVA, Chi-square test, independent sample t-test, and lLeast sSignificant Ddifference test. P < 0.05 was considered statistically significant.

Results:

The two groups were not significantly different regarding the pain scores at any time point (P > 0.05). Within-group comparisons showed a significant reduction in pain score over time, starting from 12 to 168 h, postoperatively (P < 0.05).

Conclusion:

The crown-down and step-down techniques had no significant difference regarding postoperative pain after endodontic treatment of mandibular molars with asymptomatic irreversible pulpitis with the RaCe rotary system.
Phosphoric acid treatment enhances adaptation of glass-ionomer cement to bioceramic sealer-conditioned dentin
Authors: Suresh Nandini , Chandrasekaran Sooriaprakas , Ashritha M. C. V. , Raoufe Mohammed Abdul , Vasudevan Aishwarya , Natanasabapathy Velmurugan
Published: July 2023

Background:

This study evaluated the interface between fresh eugenol/bioceramic sealer-conditioned coronal dentin and high-viscous glass-ionomer cement (HVGIC), treated with various dentin conditioners (saline, 10% polyacrylic acid, and 37% phosphoric acid).

Materials and Methods:

Standard endodontic access preparation and instrumentation were done in 21 freshly extracted mandibular molar teeth in this in vitro study. Teeth were divided into two interventional groups (n = 9/group), based on the type of sealer (zinc oxide eugenol [ZOE]/bioceramic [BioRoot RCS] sealer) used for obturation. Samples were further subdivided based on the type of dentin-conditioning procedures performed (saline/10% polyacrylic acid/37% phosphoric acid). Post dentin conditioning, the access cavity was sealed with HVGIC. Later, material-dentin interfacial analysis and elemental analysis were done using scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy.

Results:

The interfacial SEM images of HVGIC layered over B-RCS/ZOE sealer-conditioned dentin, treated with saline, showed predominantly adhesive debonding failures, whereas cohesive debonding was observed with polyacrylic and phosphoric acid. In the elemental analysis, the intensity of zirconium (depicting the residue of B-RCS)/zinc (depicting ZOE sealer) was very high on the dentin side treated with saline, in comparison to the dentin treated with polyacrylic and phosphoric acid. Furthermore, the intensity of elements from HVGIC was low on the dentin side of the groups with saline, whereas these elements showed maximum penetration into the dentin when treated with phosphoric acid.

Conclusion:

Conditioning of the endodontic access cavity using 37% phosphoric acid immediately postobturation resulted in higher penetration of HVGIC into the dentin, in comparison to the other dentin conditioners.
Evaluation and Comparison of Sensitivity and Specificity of Ultrasonography in Placenta Accreta Diagnosis in the Second and Third Trimesters
Authors: Movahedi Minoo , Farahbod Farinaz , Mootamedi Mahsa
Published: July 2023

Background:

Ultrasound is the selected technique for the detection of placenta accreta spectrum (PAS). This method can detect PAS in 80%-50% of cases. This study aimed to assess and compare the sensitivity and specificity of ultrasonography in the diagnosis of PAS after the first trimester.

Materials and Methods:

In this prospective study that was performed in 2020-2021 on 79 patients at high risk of PAS, all cases underwent ultrasonography in both 18-22 weeks of gestational age (GA) and 32-34 weeks of GA for evaluation of accreta. As per the risk factors, the delivery plan for all mothers was cesarean section. During the cesarean section, the placenta was examined for accreta, and if it was attached to the uterus, a diagnosis of placenta accreta was ascertained and a total abdominal hysterectomy was performed if the patient's bleeding was not controlled during the operation. The final diagnosis of PAS was made based on the pathology report.

Results:

Ultrasound evaluation for PAS in 18-22 weeks of GA had 79.17% specificity, 51.61% sensitivity, 61.54% positive predictive value, and 71.70% negative predictive value. Ultrasound imaging for PAS in 32-34 weeks of GA had 60.8% specificity, 90% sensitivity, 62.52% positive predictive value, and 90.33% negative predictive value.

Conclusion:

It should be concluded that PAS is a critical condition and if the patient is diagnosed in the second or third trimester, special strategies should be applied.
Fast selective encryption algorithms based on moments and chaos theory
Authors: Kamrani Abdelhalim , Zenkouar Khalid , Najah Said
Published: July 2023

In this work, we introduce a novel selective encryption scheme based on chaos theory and momentstransforms, two moments families were considered namely Tchebichef and Hahn. The goal is to propose afast and secure encryption scheme that can be deployed in real world scenarios. The proposed algorithmsoperate in the transform domains of Tchebichef and Hahn moments. We encrypt only the most significantcoefficients of the moments transforms. First, we down sample the computed moments’ matrices coefficients,then we use two logistic maps for confusion and diffusion of the down-sampled Tchebichef’s and Hahn’scoefficients, the resulting matrix is the encrypted image. This approach improves drastically the timeperformance of the encryption algorithm while keeping a “good” security level. In order to prove theperformance of our algorithms, we run different experiments and test the algorithms on different criteria:MSE, correlation coefficient, differential analysis, entropy and time performance. The presented results provethat the encryption algorithms proposed are secure and outperform state-of-the-art algorithms.
On the sharp Baer-Suzuki theorem for the $\pi$-radical of a finite group
Authors: Yang Nanying , Wu Zhenfeng , Revin Danila Olegovich , Vdovin Evgeny Petrovitch
Published: July 2023

Let $\pi$ be a proper subset of the set of prime numbers. Denote by $r$ the least prime not contained in $\pi$ and set $m=r$ for $r=2$ and $3$ and $m=r-1$ for $r\geqslant5$. The conjecture under consideration claims that a conjugacy class $D$ of a finite group $G$ generates a $\pi$-subgroup of $G$ (equivalently, is contained in the $\pi$-radical) if and only if any $m$ elements of $D$ generate a $\pi$-group. It is shown that this conjecture holds if every non-Abelian composition factor of $G$ is isomorphic to a sporadic, an alternating, a linear, or a unitary simple group.
Bibliography: 49 titles.
‘Far interaction’ of small spectral perturbations of the Neumann boundary conditions for an elliptic system of differential equations in a three-dimensional domain
Authors: Nazarov Sergei Aleksandrovich
Published: July 2023

A formally selfadjoint system of second-order differential equations is considered in a three-dimensional domain on small parts of whose boundary an analogue of Steklov spectral conditions is set, while the Neumann boundary conditions are set on the rest of the boundary. Under certain algebraic and geometric conditions an asymptotic expression for the eigenvalues of this problem is presented and a limiting problem is put together, which produces the leading asymptotic terms and involves systems of integro-differential equations in half-spaces, interconnected by means of certain integral characteristics of vector-valued eigenfunctions. One example of a concrete problem in mathematical physics describes surface waves in several ice holes made in the ice cover of a water basin, and the asymptotic formula for eigenfrequencies shows that the local wave processes interact independently of the distance between the holes. Another series of applied problems relates to elastic fixings of bodies along small pieces of their surfaces. Possible generalizations are discussed; a number of related open questions are stated.
Bibliography: 41 titles.
Wiener spiral for volatility modeling
Authors: Fukasawa Masaaki
Published: July 2023

На основе модели логнормальной стохастической волатильности в работе дано элементарное введение в модели грубой волатильности финансовых активов и представлены некоторые новые результаты.
Could extracellular vesicles derived from mesenchymal stem cells be a potential therapy for acute pancreatitis-induced cardiac injury?
Authors: Pan Long-Fei , Niu Ze-Qun , Ren Song , Pei Hong-Hong , Gao Yan-Xia , Feng Hui , Sun Jiang-Li , Zhang Zheng-Liang
Published: July 2023

Acute pancreatitis (AP) often leads to a high incidence of cardiac injury, posing significant challenges in the treatment of severe AP and contributing to increased mortality rates. Mesenchymal stem cells (MSCs) release bioactive molecules that participate in various inflammatory diseases. Similarly, extracellular vesicles (EVs) secreted by MSCs have garnered extensive attention due to their comparable anti-inflammatory effects to MSCs and their potential to avoid risks associated with cell transplantation. Recently, the therapeutic potential of MSCs-EVs in various inflammatory diseases, including sepsis and AP, has gained increasing recognition. Although preclinical research on the utilization of MSCs-EVs in AP-induced cardiac injury is limited, several studies have demonstrated the positive effects of MSCs-EVs in regulating inflammation and immunity in sepsis-induced cardiac injury and cardiovascular diseases. Furthermore, clinical studies have been conducted on the therapeutic application of MSCs-EVs for some other diseases, wherein the contents of these EVs could be deliberately modified through prior modulation of MSCs. Consequently, we hypothesize that MSCs-EVs hold promise as a potential therapy for AP-induced cardiac injury. This paper aims to discuss this topic. However, additional research is essential to comprehensively elucidate the underlying mechanisms of MSCs-EVs in treating AP-induced cardiac injury, as well as to ascertain their safety and efficacy.
Generation of a human haploid neural stem cell line for genome-wide genetic screening
Authors: Wang Hai-Song , Ma Xin-Rui , Niu Wen-Bin , Shi Hao , Liu Yi-Dong , Ma Ning-Zhao , Zhang Nan , Jiang Zi-Wei , Sun Ying-Pu
Published: July 2023

Acute pancreatitis (AP) often leads to a high incidence of cardiac injury, posing significant challenges in the treatment of severe AP and contributing to increased mortality rates. Mesenchymal stem cells (MSCs) release bioactive molecules that participate in various inflammatory diseases. Similarly, extracellular vesicles (EVs) secreted by MSCs have garnered extensive attention due to their comparable anti-inflammatory effects to MSCs and their potential to avoid risks associated with cell transplantation. Recently, the therapeutic potential of MSCs-EVs in various inflammatory diseases, including sepsis and AP, has gained increasing recognition. Although preclinical research on the utilization of MSCs-EVs in AP-induced cardiac injury is limited, several studies have demonstrated the positive effects of MSCs-EVs in regulating inflammation and immunity in sepsis-induced cardiac injury and cardiovascular diseases. Furthermore, clinical studies have been conducted on the therapeutic application of MSCs-EVs for some other diseases, wherein the contents of these EVs could be deliberately modified through prior modulation of MSCs. Consequently, we hypothesize that MSCs-EVs hold promise as a potential therapy for AP-induced cardiac injury. This paper aims to discuss this topic. However, additional research is essential to comprehensively elucidate the underlying mechanisms of MSCs-EVs in treating AP-induced cardiac injury, as well as to ascertain their safety and efficacy.
The Endless Vulnerability of Migrant Children In-Transit across the Darién Gap
Authors: Naranjo Laura , Williams Yesenia , Levy Jacqueline , Obando Rosela , González José A. , Pachar Mónica , Chen Roderick , Franco-Paredes Carlos , Higuita Nelson Agudelo , Henao-Martínez Andrés , Diaz Yamilka , Suárez José A.
Published: July 2023

Many people from poverty-stricken countries are migrating across South and Central America to reach the México–United States border, a movement exacerbated by the COVID-19 pandemic. Migrant people who begin their northbound journey in South America must transit across a significant geographic bottleneck, the Darién Gap, a mountainous rainforest region between Colombia and Panama. Most migrant people crossing this region originate from Cuba, Haiti, and Venezuela. Other people reach the shores of South American countries from west and central Africa or central and southeastern Asia and continue to the Darién Gap. Poverty and violence drive families with children to flee their homes and endure incalculable risks in their path. Children traveling with their families or as unaccompanied minors across the Darién Gap are exposed to life-threatening situations and human rights violations, including abuse, exploitation, malnourishment, and limited access to medical care. In addition to experiencing untreated medical illnesses, children experience mental health disorders during migration and after they reach their destination as a result of victimization and adverse traumatic experiences. Therefore, providing migrants, especially children, with rapid medical screenings and mental health support when they arrive at their destination is critical to reduce health inequities. Furthermore, making these interventions available during their transit and ensuring their safety may prevent further human rights abuses in children and families. Latin American governments must address the ongoing humanitarian crisis endured by migrants throughout their migratory path by offering access to essential healthcare services and safeguarding the rights and security of children and vulnerable groups.
A Mid-Infrared Laser Absorption Sensor for Gas Temperature and Carbon
Monoxide Mole Fraction Measurements at 15 kHz in Engine-Out Gasoline Vehicle
Exhaust
Authors: Stiborek Joshua W. , Tancin Ryan J. , Kempema Nathan J. , Szente Joseph J. , Loos Michael J. , Goldenstein Christopher S.
Published: July 2023

Quantifying exhaust gas composition and temperature in vehicles with internal
combustion engines (ICEs) is crucial to understanding and reducing emissions
during transient engine operation. This is particularly important before the
catalytic converter system lights off (i.e., during cold start). Most
commercially available gas analyzers and temperature sensors are far too slow to
measure these quantities on the timescale of individual cylinder-firing events,
thus faster sensors are needed. A two-color mid-infrared (MIR) laser absorption
spectroscopy (LAS) sensor for gas temperature and carbon monoxide (CO) mole
fraction was developed and applied to address this technology gap. Two quantum
cascade lasers (QCLs) were fiber coupled into one single-mode fiber to
facilitate optical access in the test vehicle exhaust. The QCLs were
time-multiplexed in order to scan across two CO absorption transitions near 2013
and 2060 cm–1 at 15 kHz. This enabled in situ measurements of
temperature and CO mole fraction to be acquired at 15 kHz in the engine-out
exhaust of a research vehicle (modified production vehicle) with an 8-cylinder
gasoline ICE. Three different vehicle tests were characterized with the LAS
sensor as follows: (1) cold start with engine idle, (2) warm start with a drive
cycle on a chassis dynamometer, and (3) hot start with a drive cycle on a
chassis dynamometer. The measurements obtained from the LAS sensor had a time
resolution that was three orders of magnitude faster than that of thermocouple
and gas analyzer data acquired at the Ford vehicle emissions research laboratory
(VERL) in Dearborn, Michigan. This enabled the LAS sensor to resolve high-speed
engine dynamics and exhaust gas transients, which the conventional
instrumentation could not, thereby providing valuable insight into the evolution
of ICE emissions during transient engine operation.
Exploring the Benefits of Karanja-Oil-Derived Biodiesel-Water Emulsion as a Potential Fuel for Diesel Engines Operated with High-Pressure Fuel Injection Systems
Authors: Gowrishankar Sudarshan , Krishnasamy Anand , Aidhen Indrapal Singh
Published: July 2023

Biodiesel is a suitable alternative to diesel because of its carbon neutrality, renewability, lubricity, and lower pollutant emissions. However, extensive research indicates higher oxides of nitrogen (NOx) emissions with biodiesel. A practical method to combat this problem is utilizing water and biodiesel as emulsions. The effect of biodiesel-water emulsion in high-pressure fuel injection systems is not fully explored in the existing literature. The present study addresses this research gap by utilizing biodiesel-water emulsions in a modified light-duty diesel engine. The governor-controlled injection system was adapted to a fully flexible electronic system capable of high-pressure injection. Unlike other literature studies, the fuel injection timings were optimized with biodiesel-water emulsions to maximize brake thermal efficiency (bte) at every load condition. In a novel attempt, the biodiesel source, i.e., raw Karanja oil (RKO), a triglyceride, was utilized as the surfactant to stabilize the biodiesel-water emulsions containing 6%, 12%, and 18% water. The emulsions reduced the ignition delay and cylinder pressures, with less-intense premixed combustion and a more significant diffusion phase combustion than biodiesel. The emulsions also present a delayed combustion phasing following the injection timing trends. Among the tested emulsions, at 5.08 bar brake mean effective pressure (BMEP), 18% biodiesel-water emulsion resulted in an 18% reduced brake specific fuel consumption (bsfc), 5% increase in bte, 30% and 7% mitigation in NOx and smoke levels, with an increase of 10% and 28% for unburned hydrocarbon (HC) and carbon monoxide (CO) emissions.
Acoustic Noise Reduction by Reducing Torque Ripple in Traction Machines
Authors: Karuppaian Anupama , Swapnil Vyas , Bolagond Vrashabha , Gupta Sanjay
Published: July 2023

This paper discusses on the reduction techniques adopted to reduce torque ripple in an electric machine, which in turn reduces the noise generated within electric machine during driving condition. Source-based noise reduction techniques such as the impact of slot-opening width, use of notches, use of wedges, and its combination are explained with specific design tips. Simulation results show that use of wedges results in 7% reduction in torque ripple when compared with other configurations. In addition to the torque ripple reduction, it also reduces overall system torque. Therefore, additional methods are discussed to increase the system torque and reduce torque ripple by 6%.
The Characteristics and Utilization of Pekarangan Pangan Lestari to Achieve Urban Food Security in Depok City, West Java
Authors: Trianingsih Ovita , Yuniati Ratna , Silalahi Marina , Anggraeni Anisa
Published: July 2023

The main challenge for urban food security is a public policy perspective that considers food security only from a rural lens and agricultural activities in the cities are appraised to have no place. In dealing with that challenge, the local government of Depok City has developed a local urban food system program called Pekarangan Pangan Lestari (P2L) in Bojongsari Sub-district. The existence of P2L influenced the increase of Depok City's food security score by 1.68 within 5 years and placed Depok City as the 10th city with the highest food security index in Indonesia. This study aims to document the characteristics and utilization of P2L in the Bojongsari Sub-district. The research was conducted using in- depth interviews with 30 people and field observation in 33 P2L. The area of Pekarangan Pangan Lestari (P2L) in the Bojongsari Sub-district can be found in the villages of Duren Seribu, Duren Mekar, Pondok Petir, and Serua, is categorized as moderate and narrow, and managed by the Women Farmers group. P2L functions as living barns (lumbung hidup), living stalls (warung hidup), living pharmacies (apotek hidup), nurseries, livestock, and fisheries. A total of 92 species belonging to 86 genera and 47 families were identified in Bojongsari Sub-district. These plants have been used by the society in Bojongsari Sub-district as a source of medicine, vegetables, spices, herbs, vitamins, and carbohydrates as much as 55%, 17%, 10, 9, 8,17, respectively. Besides, there are several animals raised in P2L such as chickens, goats, and catfish.
Survei Minat dan Bakat Aktivitas Olahraga di Ponpes Hidayatul Mubtadi’ien Tegal Arum Pojok Mojoroto Kota Kediri Tahun 2023
Authors: M Khoirul Akbar  , Puspodari  , Muhammad Yanuar Rizky  , Septyaning Lusianti
Published: July 2023

Pengamatan langsung bahwa kurangnya minat aktivitas olahraga dan belum diketahui potensi bakat olahraga santri ponpes hidayatul mubtadi’ien tegal arum pojok mojoroto kota Kediri. Tujuan dari penelitian yaitu untuk mengetahui tingkat minat dan bakat serta keksuaian antara minat dan bakat aktivitas olahraga yang dimiliki santri ponpes hidayatul mubtadi’ien tegal arum pojok mojoroto kota Kediri tahun 2023. Penelitian ini menggunakan pendekatan deskriptif kuantitatif dengan menggunakan metode survei. Subjek pada penelitian ini adalah santri Ponpes Hidayatul Mubtadi’ien Tegal Arum yang berjumlah 40 peserta. Teknik pengumpulan data penelitian ini menggunakan instrument berupa angket untuk mengetahui data minat dan tes bakat berupa Sport Search. Teknik analisis data yang digunakan yaitu menghitung rata-rata dan presentase dengan menggunakan software Microsoft Excel 2016. Berdasarkan hasil penelitian dan hasil analisis dapat diketahui bahwa tingkat minat dalam melakukan aktivitas olahraga pada santri Pondok Pesantren Hidayatul Mubtadi’ien Tegal Arum menunjukkan 2 cabang olahraga yang diminati , yakni olahraga sepakbola dengan rata-rata 174,16 yang tergolong Tinggi dengan rentang skor 80% - 89% dan olahraga bolavoli dengan rata-rata 174.7 yang masuk kategori Sedang dengan rentang skor 65% - 79%. Sedangkan untuk hasil bakat sepakbola dan bolavoli terdapat 14 peserta (35%) tergolong kriteria potensial, 12 peserta (30%) tergolong kriteria cukup potensial, 11 peserta (27%) kurang potensial dan 3 peserta (8%) tidak potensial. Untuk kesesuaian minat dan bakatnya untuk olahraga sepakbola dan bolavoli terdapat 14 peserta (35%) masuk kriteria Sesuai, 12 peserta (30%) kriteria Cukup Sesuai, 11 peserta (27%) tergolong kriteria Tidak Sesuai dan 3 peserta (8%) masuk kriteria Sangat Tidak Sesuai.
Proposed Marketing Strategy Based on Customer Value Using CLV Model (Case Study of Natione Tech)
Authors:   School of Business and Management, Bandung Institute of Technology, Indonesia, Novyanti Ofi Eka
Published: July 2023

This research focuses on customer engagement strategies for technology companies to become industry leaders. It emphasizes the importance of leveraging profitable customers through Customer Lifetime Value (CLV) analysis, segmentation and targeted marketing. By analyzing real data from Natione Tech, the study identified three key factors: current value, potential value, and customer loyalty. Based on this analysis, 57 customers are categorized into high, medium, and low-profit segments, each requiring tailored marketing approaches. The strategies include personalized communication, cross-selling, exceptional customer service for high-profit customers; flexibility, trust-building, and direct assistance for medium-profit customers; and competitive pricing, loyalty programs, and targeted campaigns for low-profit customers. These strategies empower companies to excel in the customer engagement platform market and strengthen their position as technology leaders.
Energy–Saving Compositions of Masses of Ceramic Tiles from the Raw Material Resources of the Lower Amudarya Region
Authors:   Doctor of Technical Sciences, Professor State Unitary Enterprise “Science and Development” under the Tashkent State Technical University, Eminov Ashrap Mamurovich , Boyjanov Islom Rajabboevich ,   Candidate of Technical Sciences, Associate Professor, Urgench State University, Jabberganov Jakhongir Sobirboevich ,   Independent researcher, Urgench State University, Allamov Rakhmatulla Gulmirzaevich ,   Independent researcher, Urgench State University
Published: July 2023

The article investigates the physical and mechanical properties of ceramic tiles obtained from the raw materials of the Lower Amudarya region of the Republic of Uzbekistan, such as clay of the Kulatau deposit and dune sand of the Tuprakkala massif. Based on the results of laboratory and pilot production tests, it was found that the obtained unglazed facade and floor tiles based on the developed optimal composition M–7 and glazed facing and facade tiles based on the developed optimal composition M–9, consisting of clay from the Kulatau deposit and dune sand of the Tuprakkala massif in terms of physical and mechanical properties satisfy the established requirements of the relevant GOSTs.
Development and Validation of Self-Learning Packets in Linear Equation and Inequalities in Mathematics 8
Authors:   Saint Columban College, Pagadian City, Philippines, L.Ancog Elmar , V.Neri Jr Melanio ,   Saint Columban College, Pagadian City, Philippines
Published: July 2023

The shift of modality brought on by the COVID-19 pandemic, the Department of Education in the Philippines implemented the Distance Learning Modality, which averted the New Normal. Self-Learning Packets (SLPs), satisfy the challenge of distance learning. This descriptive-developmental study aimed to develop and validate SLPs that is aligned with the Most Essential Learning Competency in Mathematics 8. This study underwent five phases guided by the ADDIE Model (Analysis, Design, Development, Implementation, and Evaluation). The developed SLPs was very acceptable as validated by five expert validators invited from Saint Columban College and the Division of Zamboanga Sibugay. Selected Grade 8 students were also asked to evaluate the pretest and posttest. Results shows that the developed SLPs in grade 8 Mathematics were generally valid and acceptable as validated by the experts. The SLPs obtained 96.92% compliance in Content and 95.93% in Layout and Design. Paired t-test was conducted to check if there were significant changes of the student’s performance from pretest and posttest. Based on the results there was a significant difference in the scores in pretest and posttest. The mean of pretest and posttest of SLP 1 were 5.10 and 7.30 with mean difference of 2.2 and the mean of pretest and posttest of SLP 2 were 4.60 and 7.20 with mean difference of 2.6, and p-value is lower than 0.05 for both SLPs. The expert validators strongly agreed that the SLPs possesses adequacy, coherence, usefulness, and reliability in equipping and enhancing student skills in linear Equations and Linear Inequalities.
Assessing the Effects of Influential Factors and Demographic Traits on the Digital Employee Experience in Oman's Telecommunications Industry
Authors:   Department of Business Studies, College of Economics and Business Administration, University of Technology and Applied Sciences, Muscat, Sultanate of Oman., Porkodi S. , Khamis Al Balushi Shahla Said ,   Department of Business Studies, College of Economics and Business Administration, University of Technology and Applied Sciences, Muscat, Sultanate of Oman., Mohammed Al Balushi Marwa Khalid ,   Department of Business Studies, College of Economics and Business Administration, University of Technology and Applied Sciences, Muscat, Sultanate of Oman., Rashid Al Hadi Khulood Othman ,   Department of Business Studies, College of Economics and Business Administration, University of Technology and Applied Sciences, Muscat, Sultanate of Oman., Al Balushi Zulfa Is'haq Murad ,   Department of Business Studies, College of Economics and Business Administration, University of Technology and Applied Sciences, Muscat, Sultanate of Oman.
Published: July 2023

The purpose of this research is to investigate the impact of various influential elements and demographic characteristics on the digital employee experience, with a focus on the telecommunications sector in the Sultanate of Oman. The main objectives of the research are to assess the intensity of various elements such as digital tool usability, technology accessibility, training availability, leadership support, organisational culture, and working environment on the digital employee experience and to explore the relationship between digital employee experience and employee demographic characteristics such as gender, age, education level, work experience, digital literacy, and job tenure in the telecommunications sector in Oman. The data collection is made using an online survey with a sample size of 150 employees from top telecommunications companies in Oman using quota sampling. To accomplish the research goals, IBM SPSS Statistics was used to conduct quartile analysis and ANOVA. Based on the results, it was found that the intensity of digital tool usability on the digital employee experience is high when compared to the other elements, and all demographic characteristics except gender have an impact on digital experience. Several suggestions were made based on the information discovered from the findings.
Corporate Social Responsibility (CSR) On Social Media towards Brand Advocacy Behavior in the Banking Industry
Authors:   Universitas Trisakti Students, Widiastuti Ari , Masnita Yolanda ,   Universitas Trisakti Lecturer, Kurniawati Kurniawati ,   Universitas Trisakti Lecturer
Published: July 2023

Corporate Social Responsibility (CSR) programs are considered crucial as they facilitate effective communication with customers and potential customers, while also fostering stronger bonds between customers and companies. This journal article investigates the impact of Corporate Social Responsibility (CSR) in Social Media on Brand Advocacy Behavior, mediated by Customer Engagement (CE), Customer Company Identification (CCI), and Brand Trust. The study involved a sample of 239 customers from 14 banks, comprising 4 banks in the KBMI 4 category and 10 banks in the KBMI 3 category, with account tenure exceeding six months. The survey was completed through an online questionnaire, and data analysis was performed using Structural Equation Modeling (SEM). The findings of this research revealed that CSR, mediated by Customer Engagement, Brand Trust, and Customer Company Identification, has an overall positive effect on Brand Advocacy Behavior among bank customers in Indonesia. This study is based on the social identity (SI) theory, which is widely utilized to explain the behavioral patterns of individuals in diverse contexts. The presence of various psychological factors as mediators substantiates the significant role of CSR in shaping the behavior of specific individuals. This research underscores that banks are not solely profit-oriented, but also actively engage in sustainable CSR initiatives. The implications of this study are particularly relevant to the banking sector, emphasizing the significance of communicating CSR initiatives on social media in fostering meaningful customer relationships and promoting Brand Advocacy Behavior.
Synergy of Social Capital of Local Residents and Transmigrates in Corn Farming in Garantung Village
Authors:   RTA Milono, Langkai, Kec. Pahandut, Kota Palangka Raya Kalimantan Tengah 73111 Universitas muhammadiyah Palangkaraya, Irwani Irwani , Ibrahim abal Tarik ,   RTA Milono, Langkai, Kec. Pahandut, Kota Palangka Raya Kalimantan Tengah 73111 Universitas muhammadiyah Palangkaraya, Wahyudi Wahyudi ,   RTA Milono, Langkai, Kec. Pahandut, Kota Palangka Raya Kalimantan Tengah 73111 Universitas muhammadiyah Palangkaraya, Nurjaman Asep ,   RTA Milono, Langkai, Kec. Pahandut, Kota Palangka Raya Kalimantan Tengah 73111 Universitas muhammadiyah Palangkaraya
Published: July 2023

A synergy of social capital of residents and transmigrates in corn farming in Garantung village. Social capital is an important factor in agricultural economic development. In this context, an analysis was carried out to find out the forms and contributions between the social capital of the local population and transmigration in the context of corn farming. The research paradigm used is the social definition paradigm with a qualitative research approach and a case study type of research. Subjects and informants in this study used purposive techniques, data obtained through interviews, observation, and documentation. Criteria for checking the validity of the data are carried out through the Credibility, Transferability, Dependability, and Conformability tests. Social capital in this study uses the theory of the concept of social capital developed by Robert Putnam, which consists of three elements: social networks, norms, and trust (Putnam, 1995). This social capital helps build relationships of mutual trust, collaboration, and togetherness in achieving common goals. The transmigration program significantly contributed to productivity and sustainability through corn farming in Garantung village by bringing social capital such as knowledge, skills, and economic resources. The synergy of social capital of residents and transmigration brings various benefits, including increased productivity of diversified agricultural businesses, exchange of knowledge and experience, and sustainability of agricultural businesses in Garantung village. Factors that influence synergy include cultural aspects, trust, common goals, effective communication, and good support and coordination from the government. The contribution of the synergy of the social capital of residents and transmigration in hybrid corn farming can lead to increased welfare, business opportunities, and increased productivity efficiently and effectively. The problems faced by farmers in general, such as patron-client networks, middlemen can be overcome through cooperation which in Indonesia is known as gotong royong; strengthening networks that can be formed in economic development, especially in Corn farming, is, of course, based on the strength of individual belief in the group.
Strategic Planning in Improving Organizational Performance: Analysis of Practice in Schools
Authors:   Postgraduate, Muhammadiyah University of North Sumatra, Jln. Denai No 217 Medan, Indonesia, Prasetia Indra
Published: July 2023

The purpose of this research is to analyze and describe the strategic planning of elementary schools in the city of Medan Indonesia, in achieving quality education. This research is a type of case study conducted at Intrenational Elementary School. The research findings explain that to achieve educational goals, schools carry out strategic planning with the following stages; the internal and external environmental analysis stages, examine the factors that affect the quality of graduates, gather information on current and future school conditions and evaluate the results of the implementation of programs in the previous period as material for analysis in preparing a strategic plan; the formulation is carried out by the team by adjusting the conditions of the school and taking into account the expectations of stakeholders. At the implementation stage of strategic planning by maximizing resources, maximizing academic and non-academic implementation, facilities and infrastructure to support the achievement of superior quality graduates.
Three Factors Earnings Management Simultaneously Impact the Financial Performance of Food and Beverage Companies Period 2017-2021 Recorded Bei
Authors:   Universitas Esa Unggul Jakarta, Indonesia, Budiatmaja Rudy , Sari Edastami Mayang ,   Universitas Esa Unggul Jakarta, Indonesia
Published: July 2023

The objective of the study was to describe the impact of tax planning, management premiums, and information asymmetry on business performance in companies in the food and beverage subsector for the period 2017-2021 in IDX datasets. This research lasted 7 months. The study population included 30 companies and the samples used included only 14 companies during the 5 periods of this study, i.e. 70 observation samples. The main data collection techniques are observation and discussion. direct on-site observation by looking at each company's financial reports. The data analysis method used is Multiple Regression Analysis (SPSS). As a result, we found that tax planning, managerial premiums, and information asymmetry simultaneously impact the financial performance of food and beverage companies.
Analysis of Corn Supply in Indonesia
Authors:   Master of Agribusiness, Faculty of Agriculture, UPN ", Nugroho Ariyanto Yulius ,   Veteran",   Jawa Timur, Surabaya, Indonesia, Mubarokah Mubarokah ,   Master of Agribusiness, Faculty of Agriculture, UPN "Veteran" Jawa Timur, Surabaya, Indonesia, Hendrarini Hamidah ,   Master of Agribusiness, Faculty of Agriculture, UPN "Veteran" Jawa Timur, Surabaya, Indonesia
Published: July 2023

Corn is an important food commodity in Indonesia. Corn production in Indonesia is influenced by various factors, including price, land area, soybean price, subsidized NPK fertilizer price, post-harvest agricultural machinery assistance, and imports. This study aims to analyze the level of elasticity of corn commodities on the supply side. The results of the analysis show that corn supply in Indonesia is inelastic to the price, land area, and price of soybeans. However, corn supply is elastic to subsidized NPK fertilizer prices, post-harvest agricultural machinery assistance, and imports. The supply elasticity to the price of corn is 0.408, which means that if the price of corn increases by 1%, then the supply of corn will increase by 0.408%. The supply elasticity to land area is 1.578, which means that if land area increases by 1%, then corn supply will increase by 1.578%. The supply elasticity to soybean prices is -0.309, which means that if soybean prices increase by 1%, then corn supply will decrease by 0.309%. The supply elasticity to the price of subsidized NPK fertilizer is -0.016, which means that if the price of subsidized NPK fertilizer increases by 1%, then the supply of corn will decrease by 0.016%. The supply elasticity of post-harvest agricultural machinery assistance is 0.048, which means that if post-harvest agricultural machine tool assistance increases by 1%, then corn supply will increase by 0.048%. The elasticity of supply to imports is 0.232, which means that if corn imports increase by 1%, then corn supply will increase by 0.232%.
Evaluation of Geothermal Energy Potential in Parts of the Lower Benue Trough, Nigeria, Using Aeromagnetic Data
Authors: Chukwudi C. EZEH , Chukwuebuka J. MAGBO
Published: July 2023

Abstract

Nine sheets of Regional Aeromagnetic data of parts of Lower Benue Trough were evaluated through the use of Centroid and forward modelling of the spectral peak methods with a view to delineating structures and basin geometry of the Southern (Lower) Benue Trough of Nigeria. Geological cross sections were used to determine the number of anomalies from the residual magnetic map after which the Discrete Fourier Transform method was applied in calculating and computing the depth to the top (Zt), depth to the bottom (Zo), Curie point depth (CPD), geothermal gradient and heat flow. From the results, the depth to the top of the magnetic source ranges between 0.5km and 12.5km with the highest points towards the south - western part of the study area. The depth to the bottom of magnetic source (centroid depth) ranges from 2km to 54km and the highest areas are located towards the north-eastern part of the study area. The geothermal gradient ranged between 21oC/Km to 29.5oC/Km., Ogoja, Oturkpo, and Katsina–Ala are situated within the region of high geothermal gradients (>26.5oC/Km). The heat flow values range from 22mW/M2 to 74 mW/M2 and the areas with the high heat flow values are Makurdi, Ogoja, Gboko and Katsina-Ala. The results also show that the Curie temperature isotherm within the study area is not a horizontal level surface, but it is undulating. The study also identified high sedimentary thickness and considerable geothermal potential which could serve as a basis for hydrocarbon accumulation and geothermal exploitation.

Keywords: Geothermal Gradient, heat flow, Crustal Temperature, Geothermal Potentials, Total Magnetic Intensity (TMI).
Research on the Correlation Between Anemia and Chronic Malnutrition in School-Age Children in Rural Areas of the Toumodi Health District in Côte d’Ivoire
Authors:   National Center for Blood Transfusion, Abidjan, Côte d’Ivoire, Janine BOUKALO AMON Renaude , Fabian ROHNER ,   GroundWork, Fläsch, Suisse
Published: July 2023

Introduction: Anemia and chronic malnutrition are widespread in sub-Saharan Africa and constitute public health problems. This study was carried out to assess the association between chronic malnutrition and anemia in rural school-age children. Method: This is a descriptive and analytical cross-sectional study carried out in the Toumodi health district in central Côte d’Ivoire. Study subjects were selected from children aged 6 to 15 years from rural school areas, according to inclusion and exclusion criteria, resulting in a sample of 588 pupils. The study was carried out in two stages: - The first step was to screen all consenting children for anemia using a Hemocue ®-System. - The second step was to collect anthropometric and biological data: the result of the presence of the malaria parasite in the blood by malaria test and the presence of helminths in the stools. Data entry and statistical analysis were carried out using Excel and SPSS version 12.0 software respectively. Results: Chronic malnutrition (weight-by-age) accounted for 22.4% of children, while the prevalence of anemia was 70.7%. The percentage of children with a positive malaria test was 57.5%. Helminths were observed in the stools of 52.8% of children. Anemia was correlated with chronic malnutrition and malaria. Moreover, chronically malnourished children were about twice (OR = 1.81) as likely to develop anemia as those who were not. Conclusion: This study revealed a strong association between chronic malnutrition and anemia.
Auricle Myxoma, Evidence from the Clinic to Cardiovascular Emergency Surgery, Triad: Cardiac, Systemic, Embolic
Authors:   Ecuadorian Institute of Social Security, Hospital. Healthy Life: Unit Cardiogenetic of Excellence, Cardiac Amyloidosis, Sarcoidosis, Pediatriac, Guayaquil, Ecuador, Crespo VJ Sánchez , Valverde A M Tapia
Published: July 2023

Cardiac tumors are infrequent, primary tumors, such as atrial myxoma, are estimated at 000017 to 0.13% of all cardiac neoplasms, postmortem records, n relation to its frequency, it is more than the other primary ones, in 67% the left atrial myxoma, 23% in the right atrium and less frequent the biaurals left. age group from 30 to 60 years, more in the female sex, in the childhood is more related to alterations in skin lentiginosis, nevi as Carney.autosomica dominant síndrome. In genetic studies, alterations in the PRKAR1A gene on chromosome 17 are found. We present the case of a patient with a request for pre-surgical evaluation, urological prolapse of the bladder, with systemic manifestations, weight loss, chronic anemic syndrome treated with vitamins and trace elements, by a private physician, without remission. It is worth mentioning that the physical and cardiovascular examination revealed semiotic onygomatic seizures of Duroziez in the mitral area, with auscultatory changes in the left lateral decubitus position, for which reason I propose the diagnosis of mitral valvular heart disease vs atrial myxoma, with 2 elements of clinical judgment of the classic triad of myxoma, in the performance of the transcutaneous echocardiogram, a cardiac mass was observed, at the level of the left atrium, spherical, of 5.5 cmt diameter, hyperechogenic. Great mobility in cycles cardiac, prolapse of the mitral valve in diastole with stenosis, the emergency consultation was made to cardiovascular surgery in a hospital of greater complexity, a procedure with complete excision of the tumor of approx 12 cmt by 5.5 cmt diameter, with satisfactory evolution of the patient