bluuebunny/crossref_metadata_2025 huggingface dataset:
PENGARUH FRAUD PENTAGON DAN KEPEMILIKAN INSTITUSIONAL TERHADAP KECURANGAN LAPORAN KEUANGAN
Authors: Harrisy Giri Ramadhan , Murtanto
Published: August 2024

Penelitian ini bertujuan untuk mengetahui pengaruh stabilitas keuangan, pengawasan efektif, rasio akrual, pergantian  direksi, rangkap jabatan dan kepemilikan institusional terhadap kecurangan laporan keuangan. Penelitian ini menggunakan metode kuantitatif. Jenis data yang digunakan pada penelitian ini adalah data sekunder, yaitu menggunakan laporan keuangan perusahaan. Populasi pada penelitian ini adalah perusahaan infrastruktur yang terdaftar di Bursa Efek Indonesia (BEI) pada tahun 2021 sampai dengan 2023. Kecurangan laporan keuangan terjadi karena terdapat beberapa faktor. Adapun faktor-faktor yang dimaksud antara lain adalah tekanan, peluang, rasionalisasi, kapabilitas, dan arogansi. Penelitian ini menggunakan metode purposive  sampling yang menghasilkan 38 perusahaan dengan total pengamatan 114. Teknik analisa yang digunakan dalam penelitian ini yaitu uji regresi linear berganda Hasil pengujian dalam penelitian ini menunjukkan bahwa stabilitas keuangan, rasio total akrual dan kepemilikan institusional berpengaruh negatif terhadap kecurangan laporan keuangan. Sedangkan pengawasan efektif, pergantian direksi dan rangkap jabatan berpengaruh signifikan terhadap kecurangan laporan keuangan. Diharapkan dapat memberikan kontribusi dalam pengembangan ilmu pengetahuan khususnya dalam bidang ilmu akuntansi mengenai pengaruh fraud pentagon, dan kepemilikan institusional terhadap kecurangan laporan keuangan. Sehingga mampu memperkuat referensi bagi peneliti selanjutnya.
FAKTOR-FAKTOR YANG MEMPENGARUHI ENTERPRISE RISK MANAGEMENT DENGAN GOOD CORPORATE GOVERNANCE SEBAGAI VARIABEL MODERASI
Authors: Gunawan Divani , Vinola Herawaty
Published: August 2024

Penelitian ini bertujuan untuk menguji dan mengetahui pengaruh Konsentrasi Kepemilikan, Leverage dan Diversification terhadap Enterprise Risk Management melalui Good Corporate Governance sebagai variabel moderasi. Penelitian ini menggunakan data sekunder yang dikumpulkan dari situs website Bursa Efek Indonesia (BEI). Penelitian ini merupakan penelitian kuantitatif dan menggunakan analisis regresi linear berganda dengan sektor perusahaan Financials pada tahun 2019-2022. Hasil dari pengujian hipotesis dalam penelitian ini menunjukkan Enterprise Risk Management berpengaruh positif signifikan terhadap Konsentrasi Kepemilikan. Sedangan Leverage dan Diversifikasi tidak berpengaruh terhadap Enterprise Risk Management. Sementara, Good Corporate Governance tidak mampu menjadi moderasi antara Konsentrasi kepemilikan, Leverage dan Diversifikasi terhadap Enterprise Risk Management.
PENGARUH KINERJA LINGKUNGAN, SOSIAL, TATA KELOLA, DAN AKUNTANSI HIJAU TERHADAP VOLATILITAS SAHAM
Authors: Putri Yulianti  , Deni Darmawati
Published: August 2024

Penelitian ini bertujuan untuk menganalisis pengaruh kinerja lingkungan, sosial, tata kelola, dan akuntansi hijau terhadap volatilitas saham dengan ukuran perusahaan sebagai variabel kontrol. Penelitian ini dilakukan pada perusahaan yang terdaftar di Bursa Efek Indonesia (BEI) pada tahun 2019-2022 dan memiliki hasil penilaian performa LST (Lingkungan, Sosial, Tata Kelola) pada Terminal Bloomberg. Populasi pada penelitian ini berjumlah 109 perusahaan. Sampel dipilih menggunakan teknik purposive sampling sehingga total sampel menjadi 45 perusahaan. Metode pengujian yang digunakan adalah analisis regresi data panel. Berdasarkan hasil analisis yang dilakukan, disimpulkan bahwa kinerja sosial berpengaruh negatif terhadap volatilitas saham sedangkan kinerja lingkungan, kinerja tata kelola, dan akuntansi hijau tidak berpengaruh pada volatilitas saham.
CEO NARCISSISM, BOARD GENDER DIVERSITY, DAN MANAJEMEN LABA TERHADAP TAX AVOIDANCE SEKTOR BASIC MATERIALS: MODERASI OLEH FAMILY OWNERSHIP
Authors: Tasya Berliana  , Vinola Herawaty
Published: August 2024

Studi ini menggunakan kepemilikan keluarga sebagai variabel moderasi untuk menyelidiki pengaruh manajemen laba, board gender diversity, dan CEO narcissism terhadap penghindaran pajak. Secara keseluruhan, 321 sampel dari 107 perusahaan dipilih secara purposive sampling untuk studi iniData sekunder penelitian ini berasal dari laporan tahunan dan keuangan perusahaan bahan dasar yang terdaftar di Bursa Efek Indonesia (BEI) dari tahun 2020–2022. Regresi linier berganda adalah alat kuantitatif yang digunakan dalam studi ini. Temuan dalam studi ini menunjukkan bahwa meskipun manajemen laba memiliki akibat yang menguntungkan pada penghindaran pajak, board gender diversity, dan CEO narcissism tidak memiliki pengaruh pada penghindaran pajak. Lebih lanjut, dampak manajemen laba, keberagaman gender dewan, dan narsisme CEO pada penghindaran pajak tidak dapat dikurangi dengan kepemilikan keluarga.
FAKTOR FAKTOR YANG MEMPENGARUHI SUSTAINABLE COMPETITIVE ADVANTAGE PADA KARYAWAN PERUSAHAAN PERUSAHAAN TELEKOMUNIKASI DI JAKARTA SELATAN
Authors: Nursifa Putri , Wiwik Robiatul Adawiyah
Published: August 2024

Penelitian ini bertujuan untuk menganalisis dampak Electronic Human Resource Management, Strategic Human Resource Management, Knowledge Management, dan Organizational Agility terhadap Sustainable Competitive Advantage di kalangan karyawan perusahaan telekomunikasi di Jakarta. Metode yang digunakan adalah kuantitatif deskriptif dengan pengumpulan data melalui kuesioner dan analisis korelasional untuk menguji hipotesis. Data yang digunakan adalah data Cross Sectional dari karyawan perusahaan telekomunikasi di Jakarta Selatan. Teknik sampling yang diterapkan adalah non-probability sampling dengan metode purposive sampling, melibatkan 308 karyawan. Hasil penelitian menunjukkan bahwa Electronic Human Resource Management, Strategic Human Resource Management, Knowledge Management, dan Organizational Agility memiliki pengaruh terhadap Sustainable Competitive Advantage. Penelitian ini diharapkan dapat memberikan kontribusi bagi perusahaan untuk meningkatkan aspek-aspek tersebut di masa depan.
MANAJEMEN KUALITAS TOTAL BERPENGARUH TERHADAP KEPUASAN PELANGGAN, KEPUASAN KARYAWAN DAN REPUTASI PERUSAHAAN PADA PERUSAHAAN KOSMETIK DI JAKARTA
Authors: Rizky Ajeng Rahayu  , Gatri Lunarindiah
Published: August 2024

Penelitian ini bertujuan untuk menganalisis Pengaruh Manajemen Kualitas Total terhadap Kepuasan Pelanggan, Kepuasan Karyawan dan Reputasi Perusahaan pada Perusahaan Kosmetik di Jakarta. Metodologi pada penelitian ini menggunakan metode kuantitatif. Metode pengumpulan data menggunakan kuisioner dengan total responden yang didapat sebanyak 175 responden yang  disebar pada Direktur, Supervisor, Manajer dan Karyawan/staf. Pengujian dilakukan menggunakan metode Structural Equation Model (SEM). Hasil penelitian ini adalah Manajemen Kualitas Total berpengaruh terhadap Kepuasan Pelanggan, Manajemen Kualitas Total berpengaruh terhadap Kepuasan karyawan dan Manajemen Kualitas Total berpengaruh terhadap Reputasi Perusahaan. Saran untuk peneliti selanjutnya agar dapat meneliti beberapa perusahaan kosmetik lain di jakarta dan menambahkan variabel  serta menggunakan lebih banyak responden agar diperoleh perbandingan dua atau lebih objek yang berbeda dan bervariasi.
The Vocational High School Student’s Computational Thinking Skills Comparison between Online and Offline Instructional Process in The Computer Network Subject Context
Authors: Herlambang Admaja Dwi , Nugraha Kresna Mukti  , Satrio Hadi Wijoyo
Published: August 2024

This study aims to see how high the difference in the average score of computational thinking skills is owned by students who carry out online learning with students who carry out offline learning and how high the significance level of the difference in the average score is. The approach used in this study uses assessment tools to measure the scores of students’ computational thinking skills. Sampling was done using a non-probability sampling technique for the 12th-grade students in computer network subjects of vocational high school. The mechanism used in this study was to provide research questions to each respondent under the learning mechanism, each of which consisted of 15 students. Based on the results of statistical calculations, it was found that the average/mean of the online mechanism group was 13.27, and the offline group was 17.73. In the Mann-Whitney U test, a score of 0.159 was also obtained. Comparison of the Mann-Whitney U test results with the test rules of 0.159 > 0.05. The conclusion is that there is a difference between the scores of the computational thinking skills of students who carry out online and offline learning, but this difference is not significant.
Evaluation of Usability in LetsCode Digital Learning Media Using the Usability Testing Method and Use Questionnaire
Authors: Nadifa Rahajeng Mufti , Pradana Fajar , Bachtiar Fitra Abdurrachman
Published: August 2024

Basic Programming is one of the compulsory courses at the lecture level in the field of computer science. The problem that is often encountered in these courses is the low understanding of students towards the programming material provided. Digital learning media, namely the LetsCode website, was developed to become a learning support medium and increase students' understanding of basic programming. To find out how far learning media can meet user needs, a usability test is carried out to determine the usability level of the system. The research was conducted using the usability testing method using a Use Questionnaire for LetsCode website users. The criteria for the test respondents were students of the Information Technology Education Study Program, Brawijaya University, with a total of 30 respondents. From the results of the questionnaire test using the F test, it shows that the variables of expediency, ease of use, and ease of learning have a simultaneous effect on satisfaction. For the feasibility of getting a result of 88.43% of the overall usability aspect which shows the LetsCode website is in the very feasible category. The research was limited to the analysis of questionnaire data and did not enter the system development stage.
Implementation of Rainfall Monitoring through an Information System Based on Radar and Satellite Image Data using the Kalman Filter Method
Authors: Sugiarto  , Putra Maulana , Syaefudin Mohamad Anwar , Rosid Mohammad Syamsu , Handoko Djati
Published: August 2024

Rainfall information is important for water resource management and disaster mitigation, so a monitoring system is needed that can provide spatial information. A rainfall monitoring information system uses radar and satellite images based on the Kalman Filter method is a website information system that aims to make it easier for users to monitor rainfall from a latitude and longitude coordinate point. The rain intensity data is in pixel colours (Red, Green, Blue) from the MAX (dBZ) product image of the EEC Weather Radar in Lampung and cloud top temperature data from the Himawari satellite. The image pixel colour data is then processed using the Kalman filter and displayed on the integrated website. The website's appearance is designed to be interactive to accommodate user customization, and the data displayed has been adapted to geographic information systems. Implementing a rainfall information system based on weather radar and satellite imagery disseminated through the website is expected to help users, both the general public and stakeholders, access real-time weather information, especially rainfall.
Utilizing a Routing Table of Proactive MANET Routing Protocol to Monitor a Group of People Mobility
Authors: Trisnawan Primantara Hari , Siregar Reza Andria , Robbani Dwindra Helmi
Published: August 2024

In general, a special group has a leader who is responsible for his or her members. The problem that often occurs in groups is the loss of members due to leaving the group. To overcome this problem, it is necessary to build a system that can help the leader monitor the members of his or her group by getting an alarm warning if there are members who have the potential to leave the group or even those  who have left the group. Existing solution is using such one hop/direct communication, which may monitor each member too close. Then, our proposed system to overcome the limitation of a single hop wireless range is to monitor each member to some extent to reach multiple hops of wireless range. The system is developed using one of proactive MANET routing protocol, ie the Destination Sequenced Distance Vector (DSDV) protocol, and utilizes hop number information in the routing table to detect slave nodes (members' equipment) that have three or more hops from the master node (leader's equipment) or even if the slave node is lost. The testing on this system is carried out functionally and non-functionally. The  results of functional testing show that the master node can produce an alarm warning in the form of a buzzer sound intermittently and the LED light flashes if there is a slave node with three number of hops or more and can produce an alarm warning in the form of a buzzer sound and the LED light flashes continuously if some slave nodes are lost. Routing table updates on this system have an average time of once every 92.445 seconds. The results of non-functional testing show that the average round trip time (RTT) required for the node to send broadcast messages is 0.208 seconds with 23 bytes of data and the average round trip time (RTT) to send SendMeYourNeighbour messages is 0.215 seconds with 43 bytes of data.
 
Keywords: Routing table; Monitoring Mobility; Dynamic routing protocol; MANET; multihops; DSDV
Energy and carbon-aware distributed machine learning tasks scheduling scheme for the multi-renewable energy-based edge-cloud continuum
Authors: Miao Zicong , Liu Lei , Nan Haijing , Li Weize , Pan Xiaodong , Yang Xin , Yu Mi , Chen Hui , Zhao Yiming
Published: August 2024

As an increasing number of Distributed Machine Learning (DML) tasks are hosted on cloud platforms in the edge-cloud continuum, Data Centers (DCs) with massive data and computational requirements have become one of the world’s largest energy consumers, leading to significant carbon emissions. Reducing energy consumption and carbon emissions is an extremely crucial and challenging issue for the sustainable development of cloud service providers. While utilizing renewable energy can help reduce the carbon emissions of DCs, the intermittent and unstable nature still causes DCs to rely heavily on high-carbon brown energy. For the resource-intensive and delay-tolerant DML tasks, this paper introduces multi-renewable energy in the geo-distributed continuum to address this issue, the spatiotemporal complementarity maximizes the renewable energy utilization and compensates for time-dependent energy differences with geographic advantages. Additionally, considering the dynamic differences in carbon intensity and electricity prices across distributed DCs in the continuum, we propose an energy and carbon-aware algorithm called ECMR for scheduling heterogeneous virtual machine creation tasks of DML among multi-clouds in different time zones. It is demonstrated that compared with the baseline methods, the ECMR significantly reduces the total power consumption, energy cost, and carbon emission of data centers while maintaining an acceptable service quality. The utilization of renewable energy in data centers has been significantly improved to 90.8% by flexibly leveraging the spatiotemporal complementarity of multi-renewable energy. Compared with existing competing algorithms, the proposed method exhibits significant improvements with an achieved average response time of 12.6 ms, and a task failure rate of 1.25%.
Evolução motora de duas crianças com Atrofia Muscular Espinhal Tipo I tratadas com terapia genética
Authors: Rodrigues Neto Jorge Lopes , Oliveira Milena Brioso Silva de , Vasconcelos Jeicyanne Holanda de , Andrade Jaíssa de Nazaré da Silva , Cavalcante Beatriz Amaral , Silva Tâmara Furtado da , Gonçalves Ara Rubia Costa , Linhares Natália Albim , Pinto Denise da Silva
Published: August 2024

Objetivo: Avaliar a evolução da função motora de crianças com Atrofia Muscular Espinhal Tipo I, após infusão medicamentosa com o fármaco Zolgensma. Detalhamentos dos casos: Trata-se de um estudo de 2 pacientes, sendo avaliada a função motora com a escala Children’s Hospital of Philadelphia Infant Test of Neuromuscular Disorders antes da medicação e após 2 e 6 meses. Os pacientes tinham em média 2,4 ±1,69 anos, apresentavam hipotonia de membros inferiores e superiores, dificuldade no controle cervical e nos movimentos de rolar e sentar. Considerações finais: Este estudo demonstrou que pacientes com atrofia muscular espinhal tipo I, mesmo com baixa sobrevida segundo a literatura, obtiveram ganhos na escala Children’s Hospital of Philadelphia Infant Test of Neuromuscular Disorders e a aquisição de marcos motores. Entretanto, o estudo é limitado pela seleção amostral intencional dos pacientes e devido ao curto prazo de avaliação, sendo necessário trabalhos que monitorem os resultados ao longo prazo.
Postpartum Hemorrhage in Humanitarian Settings: Heat-Stable Carbetocin and Tranexamic Acid Implementation Study in South Sudan
Authors: Tran Nguyen Toan , Ochan Awatta Walter , Sake Jemelia , Sukere Okpwoku , Zeck Willibald , Seuc Armando , Schulte-Hillen Catrin
Published: August 2024

Background and Objective

Postpartum hemorrhage (PPH) remains a significant concern in crisis-affected contexts, where the implementation of heat-stable carbetocin (HSC) and tranexamic acid (TXA) for PPH prevention and treatment lacks evidence. This study aims to evaluate the effects of a capacity-strengthening package on the use of uterotonics for PPH prevention and detection, and the use of TXA for PPH treatment in basic maternity facilities in South Sudan.

Methods

In this implementation study, the six chosen facilities followed a stepwise sequence of PPH management: T1 (routine care), a transition period for package design; T2 (package without HSC and TXA); T3 (package and HSC); and T4 (package with HSC and TXA). The intervention comprised refresher training, an online provider community, PPH readiness kits, alarm bells, and displayed algorithms. The main outcomes were trends in prophylactic uterotonic use, including HSC, visual diagnosis of bleeding, and oxytocin and TXA use for PPH treatment. Analyses were adjusted for cluster effect and baseline characteristics. The study was registered in the Pan-African Clinical Trials Registry (PACTR202302476608339).

Results

From February 1, 2022, to February 17, 2023, 3142 women were recruited. Nearly all women received prophylactic uterotonics across all four phases, with a significant increase after T3 (T4-T1: 100%–98%; 95% CI: 4.4–0.4). Oxytocin alone was the most used in T1 (98%) and T2 (94%) and HSC alone in T3 (87%) and T4 (82%) (T4-T1: 95% CI: 75.5–83.3). PPH diagnosis tripled from 1.2% of all births to 3.6% (T2-T1: 95% CI: 0.4–5.2) and stayed roughly at 3% in T3 and T4. For treatment, universal oxytocin use in T1 and T2 decreased in T3 upon HSC initiation (T3-T2: 27%–100%; 95% CI: 95.5–49.9), whereas TXA use increased in T4 (T4-T1: 95%–0%; 95% CI: 54.6–99.0).

Conclusion and Global Health Implications

An intervention package to improve the quality of PPH prevention and treatment can effectively increase HSC and TXA use in crisis settings. It could be scaled up in similar contexts with ongoing supervision to mitigate confusion between the existing and new medications, such as the reduced use of oxytocin for PPH treatment. Sustaining cold chain investments remain vital to ensure oxytocin quality.
Clinical Characteristics and Outcomes of COVID-Positive Maintenance Hemodialysis Patients: A Study from India
Authors: Yadla Manjusha , Vadakkeveetil Anupama Kankokkaran
Published: August 2024

Background

This study describes to the clinical features and outcomes of patients on maintenance hemodialysis infected with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) delta variant.

Materials and Methods

This was a retrospective analysis of case records of patients on maintenance hemodialysis admitted for management of coronavirus disease (COVID) infection. Our teaching hospital, being a state-designated referral center, had COVID admissions from March 2020 till December 2020. Epidemiological and clinical data were collected and analyzed. Factors influencing survival and the survival curve analysis were assessed.

Results

Of a total of 21,228 admissions during the period, 400 patients were referred for nephrology services. Of the 400 referrals, 226 were maintenance hemodialysis patients. Mean age of the group was 50 years, and fever was the most common presenting symptom. On multivariate analysis, factors influencing mortality were found to be older age, presence of diabetes, leukopenia, thrombocytopenia, hypoxemia, need for support, and a higher qSOFA score. The probability of survival of dialysis patients at the end of 19 days was 60%.

Conclusion

During the pandemic by SARS-CoV-2 delta variant, majority of the nephrology referrals were for maintenance hemodialysis patients. Mortality was 38% in the study group, and the factors associated with mortality with a significant hazard ratio were older age and diabetes.
Inherited platelet function disorders in children – A diagnostic conundrum solved by multimodality testing
Authors: Arora Prerna , Munjal Priyanka , Parikh Himil , Viswanathan Ganesh Kumar
Published: August 2024

Inherited platelet function disorders (IPFDs) are an extremely rare cause of bleeding in hematological practice. These disorders have varied clinical presentations and heterogeneous underlying pathologies. The IPFDs remain largely undiagnosed or misdiagnosed due to lack of clinical suspicion, masquerading as other acquired causes of bleeding and unavailability of specialized tests in resource constraint settings. Glanzmann thrombasthenia (GT) and Bernard–Soulier syndrome (BSS) are rare autosomal recessive platelet surface receptor disorders of glycoprotein (GP)IIb/IIIa and GPIb/IX/V, respectively, with an estimated prevalence of 1/1,000,000 individuals. Six children presenting with profuse bleeding were evaluated. Complete clinical details of bleeding history along with family history and history were taken. A complete hemogram and peripheral smear examination were done. Coagulation studies, light transmission aggregometry coupled with flow cytometry (FCM) for platelet GP expression, were done to determine the cause of bleeding. In the present series, five young children were diagnosed as GT from two different families, and one case was diagnosed as BSS in a young female child, which was misdiagnosed as immune thrombocytopenia at presentation. Careful re-evaluation coupled with clinical history and FCM analysis leads to a confirmed diagnosis. The complex and heterogeneous pathogenesis of rare IPFDs continues to challenge clinicians and the diagnostic laboratories that assess patients for potential bleeding disorders. A high index of suspicion coupled with utilizing multi diagnostic modalities in these rare disorders can clinch the correct diagnosis and help in timely management.
Rare mold infections from a tertiary care institute in South India: A case series
Authors: Sudhaharan Sukanya , Pamidimukkala Umabala , Verma Nikhi , Katkam SaiChandana
Published: August 2024

With the increasing incidence of immunocompromised patients, invasive infections caused by rare molds are increasing. Here, we report four cases of rare mold infections in immunocompromised and immunocompetent patients. The first case was Scedosporium apiospermum infection in a road traffic accident, the second and third cases were subcutaneous infection by Medicopsis romeroi in post-renal transplant patients, and the fourth case was subcutaneous infection by Phaeoacremonium parasiticum. Invasive fungal infections caused by emerging fungi are on the rise in both immunocompromised and immunocompetent patients. Microbiologists and clinicians should be aware of these rare fungal infections and not consider them contaminants since early identification and appropriate management would help to prevent the mortality associated with these infections.
Advanced magnetic resonance imaging for glioblastoma: Oncology-radiology integration
Authors: Aleid Abdulsalam Mohammed , Alrasheed Abdulrahim Saleh , Aldanyowi Saud Nayef , Almalki Sami Fadhel
Published: August 2024

Background:

Aggressive brain tumors like glioblastoma multiforme (GBM) pose a poor prognosis. While magnetic resonance imaging (MRI) is crucial for GBM management, distinguishing it from other lesions using conventional methods can be difficult. This study explores advanced MRI techniques better to understand GBM properties and their link to patient outcomes.

Methods:

We studied MRI scans of 157 GBM surgery patients from January 2020 to March 2024 to extract radiomic features and analyze the impact of fluid-attenuated inversion recovery (FLAIR) resection on survival using statistical methods, proportional hazards regression, and Kaplan–Meier survival analysis.

Results:

Predictive models achieved high accuracy (area under the curve of 0.902) for glioma-grade prediction. FLAIR abnormality resection significantly improved survival, while diffusion-weighted image best-depicted tumor infiltration. Glioblastoma infiltration was best seen with advanced MRI compared to metastasis. Glioblastomas showed distinct features, including irregular shape, margins, and enhancement compared to metastases, which were oval or round, with clear edges and even contrast, and extensive peritumoral changes.

Conclusion:

Advanced radiomic and machine learning analysis of MRI can provide noninvasive glioma grading and characterization of tumor properties with clinical relevance. Combining advanced neuroimaging with histopathology may better integrate oncology and radiology for optimized glioblastoma management. However, further studies are needed to validate these findings with larger datasets and assess additional MRI sequences and radiomic features.
Comparative anatomical analysis between lateral supraorbital and minipterional approaches
Authors: Marques Lopes de Araujo Ricardo , Zimelewicz Oberman Dan , Christiaan Welling Leonardo , Chaurasia Bipin , Evins Alexander I. , Bernardo Antonio , Isolan Gustavo Rassier , Paulo Dourado Jose , Rabelo Nicollas Nunes , Figueiredo Eberval G.
Published: August 2024

Background:

The pterional craniotomy, described by Yasargil and Fox in 1975, constitutes the most traditional and important surgical access in vascular neurosurgery. Minimally invasive alternatives include the minipterional (MP) and lateral supraorbital (LSO) craniotomies, which avoid complications such as injury to the frontal branch of the facial nerve, temporal muscle dysfunction, depression of the craniotomy site, frontal sinus opening, and cosmetically unacceptable outcomes. We evaluated and compared the exposures provided by MP and LSO craniotomies through quantitative measurements of the surgical exposure area around the circle of Willis and parasellar regions, as well as angular and linear exposures of the internal carotid artery (ICA) bifurcation, middle cerebral artery (MCA), midpoint of the anterior communicating artery, and tip of the basilar artery (BA).

Methods:

Seven fresh cadavers were dissected at the São Paulo Medical Examiner’s Office, SP, and three at the skull base laboratory of Weill Cornell Medical College, New York, USA. The craniotomies were performed sequentially, initially with the LSO craniotomy followed by the MP. After the craniotomy, the surgical exposure area, craniotomy area, and angular exposures in the horizontal and vertical axes were determined.

Results:

The MP craniotomy provided better angular exposure for the ipsilateral MCA, while the LSO craniotomy and BA provided better vertical axis exposures. The LSO craniotomy provided better angular exposure in the vertical axis for the midpoint of the anterior communicating artery and contralateral ICA bifurcation. Regarding surgical exposure and craniotomy area, there were no statistically significant differences.

Conclusion:

The MP craniotomy offers a significantly larger surgical exposure compared to the LSO craniotomy, with specific advantages regarding angular exposure to important neurovascular structures. This study provides important quantitative data to guide the choice between these minimally invasive access techniques in vascular neurosurgery.
HOTS Measured by Cognitive Learning Outcomes (CLO) Inventory Based Education for Sustainable Development as a Media for Students Skills Analysis
Authors: Fauziah Andi , Kaniawati Ida , Novia Hera
Published: August 2024

This study aims to develop an ESD-based cognitive learning outcomes instrument in measuring students' higher order thinking skills. This research is a R&D. The data in this study are qualitative and quantitative data from limited trials to fifty twelfth grade students. Quantitative data were analysed using SPSS and Rasch model, the results of validity analysis using SPSS and Rasch model showed nine items on the instrument, except item number 1 is valid because it has met 1 of the 3 criteria for item fit order following 0.50 < MNSQ < 1.5; -2.0 < ZSTD < +0.2 and 0.4 < Pt Mean < 0.85. The results of instrument reliability analysis using SPSS showed 0.716 while person reliability and item reliability from Rasch analysis showed 0.64 and 0.77 respectively. Analysis of students' worksheets shows that the presentation of students' answers is still in an incorrect position so it concluded that students have not been able to link the real experiences they have with issues that occur in the real world, besides that the results of the analysis of students' worksheets also show that more than 45% of students are still at a low level of thinking, especially on issues related to SDG’s.
Uncertainty of Helium Ion Momentum (𝑯𝒆+) by Using the Heisenberg Uncertainty Approach on Quantum Numbers 𝒏 ≤ 𝟑
Authors: Afidah Zidan , Supriadi Bambang , Rahmawati Novi , Febrianty Wanda , Mahmudyah Niken Noviana , Al Amri Hanif
Published: August 2024

This study aims to find the uncertainty value of Helium Ion Momentum (𝐻𝑒+) by using the Heisenberg Uncertainty Approach to Quantum Numbers 𝑛 ≤ 3. This type of research uses non-experimental research. The research was conducted by developing previously existing theories. This research is to calculate the expectation value of the position to find out how often electrons can appear, and determine the uncertainty of the momentum of Helium Ion (𝐻𝑒+) by using the Heisenberg uncertainty approach at number 𝑛 ≤ 3. Based on the results and discussion, it can be concluded that the uncertainty of helium ion momentum (𝐻𝑒+) by using the Heisenberg uncertainty approach to quantum numbers 𝑛 ≤ 3. The uncertainty of helium ion momentum is influenced by the main quantum number (n) and the azimuthal quantum number (l). By entering the values of n and l, the results can be obtained at quantum numbers 𝑛 = 1 with 𝑙 = 0 obtained ∆𝑃𝑟 = 2,977504663 × 10−24. At the quantum number 𝑛 = 2 with 𝑙 = 0 obtained ∆𝑃𝑟 = 8,06312759 × 10−24 and 𝑙 = 1 obtained ∆𝑃𝑟 = 2,03048 × 10−23. At the quantum number 𝑛 = 3 with 𝑙 = 0 obtained ∆𝑃𝑟 = 1,50366086 × 10−23, and 𝑙 = 1 obtained ∆𝑃𝑟 = 3,481407588 × 10−23 and 𝑙 = 2 obtained ∆𝑃𝑟 = 4,47363642 × 10−22. Based on these results, it can be concluded that the uncertainty value of momentum is getting bigger as the two values of n and l increase. This is also proven by using simulation and the results of momentum uncertainty are not much different and only a difference of a few decimal places.
DENSITY ANALYSIS OF RIVER WATER THROUGHOUT JAKARTA CITY TO HYDROSTATIC PRESSURE
Authors: Sari Tri Wulan , Yatmadi Denny
Published: August 2024

Different activities of a river area, can caused differences in density and hydrostatic pressure of the fluid contained in rivers in different places. This study aims to analyze the relationship between density and hydrostatic pressure fluid of 5 rivers that cross Jakarta and empties into Jakarta Bay. Laboratory testing is carried out using the Center of Pressure tool. The data obtained after the test are mass, weight, moment, and Perspex water level. The data were analyzed using the appropriate formula to obtain the density of water from 5 research locations. Then continued the analysis of the hydrostatic pressure at the research site. The results obtained indicate that the hydrostatic pressure is directly proportional to the density of the liquid. Like the hydrostatic pressure in Sunter drain, the highest hydrostatic pressure among the others is 10389.24 N/m2, with the highest density of water also being 1060.13 kg/m3.

Keywords : River; fluid; center of pressure ; Density; Hydrostatics pressure.
Mapping The Risk Level of Earthquake Damage in Central Java Based on Data From PGA, PD and HDI
Authors: Basid Abdul , Rusli Rusli , Purwandari Purwandari
Published: August 2024

Central Java is one of the provinces in Indonesia with a fairly high level of seismicity. During January 2021 alone there were 22 tectonic earthquakes, one of which occurred in Banyumas (M.5). With this fairly high seismicity, it is necessary to reduce its impact through mitigation. One of the efforts that can be done is to map the level of risk of damage. This mapping can be made based on the Peak Ground Acceleration (PGA) value combined with the Population Density (PD) and Human Development Index (HDI) values. Two methods were used to calculate PGA based on the 1970-2020 earthquake data, namely the Crouse (1991) and Donovan (1973) methods. The results of the calculation using the Crouse method obtained the highest PGA value of 92–180 gal (VI-VII MMI) and the Donovan method obtained the value of 92-107 gal (VI MMI). From this PGA value combined with the PD and HDI values in each district in Central Java, a map of the level of risk of damage caused by the earthquake is made. The results of the mapping show that the districts of Klaten, Cilacap, Kebumen, Banyumas, Brebes, Magelang, Demak and Semarang have a fairly high risk of damage.

 

 

 
Development of Potential Energy Props Based on Arduino Uno Microcontroller to Improve Student achievement
Authors: Matsun Matsun , Boisandi Boisandi , Sari Ira Nofita , Hadiati Soka , Pramuda Adi
Published: August 2024

This study aims to determine the feasibility of developing potential energy teaching aids based on the Arduino Uno microcontroller based on the assessment of media experts and material experts, the accuracy of the tool, as well as knowing the improvement of student achievement. The Arduino Uno microcontroller was developed with the help of ultrasonic sensors and load cell sensors. Student achievement in this study includes cognitive, affective and psychomotor. The model used in this study is the ADDIE model which consists of 4 stages, namely analysis, design, development, implementation, and evaluation. Based on the data analysis, it can be concluded that the validation of the Arduino Uno microcontroller-based physics learning teaching aids by two media experts obtained an average score of 95% in the "very feasible" category and by two material expert validators obtained an average percentage of 95.3% with the "very good" category. feasible”, Accuracy of teaching aids physics based on Arduino Uno microcontroller. For the level of confidence in the measurement, the results obtained are 99.14% with an accuracy level of 0.86%. the average increase in student achievement in the cognitive domain is 14.8%, the affective domain is 8%, and the psychomotor domain is 18.3%. Thus, potential energy props based on the Arduino Uno microcontroller are feasible to be used as learning media in schools and are able to improve student achievement.
The Design of Modest Water Plan Building to Improve Scientific Process Skill
Authors: Syaifuddin Syaifuddin , Marwoto Putut , Priatmoko Sigit , Sarwi Sarwi
Published: August 2024

This research aims to: (1) create a design of a modest water plan for mathematics lessons with the material of fluid, (2) describe the improved psychomotor skills of the learners from the learning process with the created design, the modest water plan, for mathematics lesson with the material of fluid, and (3) describe the learners' responses toward the design of the water pump with the lesson of fluid mechanics. This Research & Development applied the ADDIE model with five stages. The first stage was analysis. The researchers reviewed the physics learning problems for Senior High School learner levels, specifically in the chapter on fluid mechanics. The second stage was the designing stage. The researchers designed the experiment tools. The third stage was the development stage. The researchers provided the materials to experiment. The fourth stage was the implementation stage. The researchers used the pre-created tool in a trial run test. Then, the fifth stage was the evaluation stage. This stage involved the reliability test based on the data validity of the experiment results. The results showed that: (1) the design of the modest water pump was applicable as the media of fluid mechanics learning, (2) the pretest-posttest results of the trial run test showed the improved aspect of the learners' scientific process skills; and (3) the learners' responses toward the design as the learning media for fluid mechanics was categorized "excellent."
ANALYSIS AND WAVE VISUALIZATION OF ELECTRICAL CIRCUITS USING FOURIER SERIES WITH MATLAB
Authors: Fathurohman Apit , Nur Ahmad Zarkasih
Published: August 2024
DEVELOPMENT OF LIVE WORKSHEET-BASED CRI INSTRUMENTS TO DETECT STUDENT MISCONCEPTIONS ON STRAIGHT LINE MOTION MATERIALS
Authors: Asri Ayu Cintana , Taufiq Muhammad
Published: August 2024

This research aims are to develop and test the validity of the diagnostic assessment instrument of misconceptions on the motion concept through CRI (Certainty of Response Index) Live Worksheet-based. The test questions were carried out by 23 students of class VIIIB SMP Setiabudhi Semarang. This research instrument uses the Research and Development method of the 4-D development model from Thiagarajan. The validity of this study was carried out using expert validation and item analysis. In the expert validation stage, the question instrument was validated by 3 validators consisting of evaluation experts and material experts with an average proportion of 93.59%. The questions were tested on 20 students, and it was stated that there were 15 questions. The data obtained were analyzed with the help of the Anates application version 4.09. The results showed that: (1) Based on the criteria for the level of difficulty obtained from 1 item (5%), moderate 16 items (80%), difficult 3 items (15%); (2) Based on the question criteria, it was obtained very low 2 items (10%), low 1 item (5%), moderate 10 items (50%), and high 7 items (35%); (3) Based on the reliability test, it was found that the reliability of the test of 0.77 in the high category. Based on the analysis of research data that has been carried out, it can be concluded that the diagnostic test evaluation tool in the form of multiple choice based on the Certainty Response Index (CRI) with predetermined reasons can be used to identify students' misconceptions in straight motion material. The level of misconceptions experienced by grade VIII students of SMP Setiabudhi Semarang consists of the cognitive domains C1-C5. At the level of understanding C1 with 4.4% misconception, C2 28.7%, C3 33.5%, C4 27.1% and C5 6.3%. This research is expected to be a reference or consideration as a form of instrument based on misconceptions on the Straight Motion material through the Live Worksheet-based CRI model.

Keywords: CRI Instruments; Live Worksheets; Misconceptions; Straight Motion; Validity.
Rancang Bangun Large Format CoreXY 3D Printer Dengan Sistem Hot-swap Printhead
Authors: Wicaksono Rendi Pambudi , Sudirman Dirvi Eko Juliando , Aditya Tio Prima , Ulfa Salsabilaturrohmatin Nazida , Muqorrobin Much Kevin Fauzi
Published: August 2024

Dalam beberapa dekade terakhir, teknologi 3D Printer telah mengalami kemajuan signifikan, mengubah paradigma  proses manufaktur dan kreativitas. Salah satu tantangan terbesar yang terus dihadapi  dunia 3D Printer adalah ukuran cetakan yang dapat dihasilkan. Ukuran cetak yang lebih besar memungkinkan objek dicetak tanpa membaginya menjadi komponen-komponen yang lebih kecil, sehingga meningkatkan efisiensi produksi dan kualitas objek akhir. Selain itu, untuk meningkatkan fleksibilitas dan efisiensi saat menggunakan 3D Printer, integrasi sistem hot-swap printhead juga sangat penting. Sistem hot-swap printhead memungkinkan pengguna mengganti kepala cetak dengan mudah  tanpa perlu melakukan kalibrasi ulang. Pada penelitian ini, 3D Printer tipe CoreXY dipilih karena kualitas hasil cetak dan efisien waktu dalam pembuatan 3D modelling yang di hasilkan lebih efektif dan optimal. Kualitas obyek yang dihasilkan mesin ini cukup baik. Mesin dapat melakukan pencetakan dengan baik pada setiap sisi dari bidang cetak, dan juga dengan kecepatan yang bervariasi. Hasil pada percetakan dengan sistem hot-swap nozzle menggunkan nozzle 0,5mm dan 0,8mm sudah mendapatkan tingkat presisi ukuran yang sama menggunakan objek kubus kalibrasi dengan ukuran 40mm x 40mm x 40mm. Sistem hot-swap printhead dapat berjalan sesuai dengan yang diharapkan.
Perhitungan Susut Energi Pada Pemeliharaan APP Prabayar dan Pascabayar di PT PLN (Persero) ULP Anambas
Authors: Ikanov Muhammad Fajar , Haddin Muhamad
Published: August 2024

Penelitian ini membahas tentang perhitungan susut energi pada pemeliharaan Alat Pengukur dan Pembatas (APP) prabayar maupun pascabayar melalui pengujian error sesuai kelas APP. Tujuan penelitian ini untuk mengetahui susut energi yang terhitung saat APP tersebut rusak atau macet. Model penelitian ditentukan dari pengujian error APP yang rusak yang mempengaruhi pengukuran energi selama tahun 2023. Parameter yang ditentukan: arus, tegangan dan impuls/putaran. Metode yang digunakan adalah melakukan pengujian error APP dengan parameter dan variabel yang telah ditentukan dan dilakukan perhitungan energi yang hilang atau susut energi pada APP. Dampak bagi masyarakat jika APP tidak akurat pengukurannya adalah ketidaksesuaian tagihan pemakaian energi sedangkan dampak bagi perusahaan penyedia listrik adalah meruginya penjualan energi kepada masyarakat. Solusinya diperlukan pemeliharaan secara berkala dan pemeriksaan terhadap APP agar pengukuran tidak melebih batas error kelas meter karena hanya energi yang terukur di APP pelanggan yang akan menjadi rekening listrik harus dibayarkan pelanggan sebagai konsumen. Sebagai obyek penelitian ditentukan di PLN ULP Anambas pada periode tahun 2023. Hasil penelitian menunjukkan bahwa jumlah energi yang hilang sejumlah 29.465 kWh sepanjang tahun 2023. Total kerugian energi tersebut apabila dikonversi kedalam bentuk rupiah adalah sebesar Rp. 42.559.246,-. Susut akibat gangguan APP ini menyumbang 0,36% dari susut kumulatif.
Подход к мониторингу технологических данных при многоканальной станочной обработке с использованием NoSQL базы данных, Node-RED и Grafana
Authors: Мартинов Г.М. , Поляков К.В.
Published: August 2024

Рассмотрен подход к построению систем мониторинга технологических данных при многоканальной обработке на станках с ЧПУ. Используются программные решения от сторонних производителей, такие как: NoSQL базы данных, Node-RED и Grafana. Предложена структурная модель системы мониторинга, реализованной на базе Node-RED и Grafana. Разработана система мониторинга для двухканальной обработки с использованием протокола OPC UA и базы данных MongoDB.
Идентификация нефтяных загрязнений водной поверхности с использованием БПЛА
Authors: Вытовтов К.А. , Барабанова Е.А. , Новочадова А.В. , Гладких Т.Я.
Published: August 2024

Представлены результаты исследований в области экологического мониторинга, связанные с идентификацией нефтяных загрязнений водной поверхности. Предложен метод идентификации нефтяных зягрязнений, основанный на обработке изображений, полученных с использованием мультиспектральных камер, размещённых на БПЛА, в геоинформационной системе «Нева». Для анализа мультиспектральных снимков проводится предварительный спектральный анализ, позволяющий получить необходимые индексы коэффициентов спектральной яркости. Применение машинного обучения к данной задаче позволяет повысить точность идентификации нефтяных загрязнений.
فاعلية برنامج تدريبي قائم على الإشراف عن بُعد في تنمية بعض الكفايات الإشرافية الإلكترونية لدى المشرفات التربويات بمرحلة رياض الأطفال بمدينة مكة المكرمة
Authors: الصائغ عهود خالد , بابطين هدى محمد
Published: August 2024

هدفت الدراسة الحالية إلى التعرف على فاعلية برنامج تدريبي قائم على الإشراف عن بُعد في تنمية بعض الكفايات الإشرافية الإلكترونية لدى المشرفات التربويات بمرحلة رياض الأطفال بمدينة مكة المكرمة، واتبعت الدراسة المنهج الوصفي، والمنهج التجريبي القائم على التصميم شبه التجريبي ذو المجموعة الواحدة ذات القياس القبلي والبعدي، حيث صُمم البرنامج التدريبي، وأدوات الدراسة المتمثلة في اختبار معرفي مكون من (20) سؤال، وبطاقة تقييم الأداء مكونة من (18) فقرة موزعة على المحاور الثلاثة للكفايات الإشرافية الإلكترونية (كفايات التعليم الإلكتروني، كفايات التدريب عن بُعد، كفايات التقويم الإلكتروني)، طُبقت على عينة الدراسة المكون من (22) مشرفة تربوية بمرحلة رياض الأطفال بمدينة مكة المكرمة. واعتماداً على عدداً من الأساليب الإحصائية توصلت الدراسة إلى النتائج التالية: وجود فروق ذات دلالة إحصائية عند مستوى دلالة أقل من (0.05) بين متوسطي أداء عينة الدراسة في التطبيقين القبلي والبعدي لكل من (الاختبار المعرفي، وبطاقة تقييم الأداء) ككل، لصالح التطبيق البعدي تعزى لإستخدام البرنامج التدريبي القائم على الإشراف عن بُعد، وفي ضوء ما توصلت إليه النتائج أوصت الدراسة بضرورة تطوير آليات تطبيق نموذج الإشراف عن بُعد بصورة مستمرة بوصفه نموذجاً يتناسب مع متطلبات العصر الحديثة والمتسارعة يوم بعد يوم من خلال توفير متطلبات تطبيقه سواءً كانت بشرية أو مادية. التركيز على إثراء مهارات المشرفات التربويات في مجال الكفايات الإشرافية الإلكترونية من خلال عقد الدورات التدريبية في مجال الإشراف عن بُعد. ضرورة التدريب المستمر للمشرفات التربويات لكل ما هو مستجد في الميدان التعليمي.
PENGEMBANGAN MEDIA PEMBELAJARAN BERBASIS ADOBE PADA PEMBELAJARAN TEMATIK KELAS III SDN 17 PONTIANAK KOTA
Authors: Maulana Dio Vialli , Halidjah Siti , Ghasya Dyoty Auliya Vilda
Published: August 2024

AbstrakThis study aimed to develop an independent learning of media in the form of an application with SWF (Small Web File) extension and can be opened via Android. This study used the research and development (RnD) method by adapting the Borg and Gall model. The data of this study were taken from student questionnaire sheets as well as the results of interviews with the third grade elementary school teachers of State Secondary school Number 17, Pontianak City. The results showed that during the process of the development of  thematic-based independent learning, students have been through 7 of stages in learning: the potential and problem stages, data collection, product design, design validation, design revision, product testing, and product revision. The feasibility of this learning media in the first phase of the trial showed that  94%  responses of students lead to very decent criteria. Meanwhile, in the second trial, the response of students showed that the response from students was 96% having very decent criteria.KeywordsAdobe Flash Professional CS6, Development, Self Learning Media, Thematic