bluuebunny/crossref_metadata_2025 huggingface dataset:
Ética y el sistema fiscal mexicano
Authors: Daza Mercado Marco Antonio , Sánchez Sierra Antonio , Ramírez Chávez Javier
Published: May 2024

En el artículo se realiza un acercamiento conceptual al Sistema Fiscal Mexicano (SFM) desde una perspectiva ética, donde se reflexiona sobre la jerarquización de las leyes en materia impositiva y se analiza la importancia de impulsar un sistema tributario mundial al observar que las más grandes desigualdades económicas, sociales y culturales suceden en la actualidad en la región de América Latina.Las reflexiones desde la eticidad del SFM partenen su marco teórico desde la concepción aristotélica, kantiana y rawlsiana, en términos generales, señalando, a la vez, algunas de las problemáticas de las estructuras de los sistemas fiscales latinoamericanos, hasta llegar a discutir y proponer propuestas que nacen originalmente en la Organización para la Cooperación y el Desarrollo Económico, (OCDE), el Sistema Económico Latinoamericano y del Caribe (SELA), la Comisión económica para América Latina y el Caribe (CEPAL) y otros organismos e instituciones.El objetivo general del trabajo investigativo esanalizar la importancia de la ética en el SFM.Los objetivos particulares son los siguientes: a) Comprender algunas posturas teóricas y aplicadas en referencia a la ética pública en el contexto del sistema fiscal en México;b) Caracterizar algunas leyes y normas en materia fiscal;y c) Identificar algunas problemáticas en los sistemas fiscales en América Latina.La metodología es de tipo documental, argumentativa, propositiva y descriptiva, no experimental, con un enfoque cuantitativo. Se concluye que para mejorar el sistema fiscal mexicano es indispensable que la equidad fiscal no estésubordinadaa la eficiencia económica. El SFM y su política fiscal sonconsideradoscomo una de las principales causas de las grandes de desigualdades en materia social, económica, cultural, educativa y otras, que han perdurado en los últimos años y que en lugar de disminuir siguen aumentando. Se deduce que, en cuanto a los sistemas fiscales, ningún país es inmune a la corrupción, impunidad e irrespeto a los derechos humanos de los contribuyentes.
Kénosis y emancipación en la filosofía de Gianni Vattimo
Authors: Esteban Ortega Joaquín
Published: May 2024

En el presente artículo se pretende poner en relación la noción de kénosis, sobre la que se configura esencialmente la concepción hermenéutica de la religión en Gianni Vattimo, con la pretensión emancipatoria que surge del nihilismo hermenéutico. Para ello rastrearemos esa concepción hermenéutica de la verdad que ya no nos violenta, a partir de la cual se estructura la religión del pensamiento débil. Además, constataremos cómo la concepción hermenéutica de la metafísica, aparte de presentarse como clave de la secularización, permitirá identificar la salvación con la interpretación. Sobre estos presupuestos generales de su filosofía Vattimo anuncia la venida de Jesús como fenómeno hermenéutico. Tendremos que preguntarnos finalmente si las posibilidades de este planteamiento trágico de la kénosis se llevan hasta sus últimas consecuencias con el anuncio sociopolítico de una emancipación de corte hermenéutico.
Diseño de un libro de texto interactivo para aprender con engagement
Authors: González-Ramírez Teresa , García-Hernández Alién
Published: May 2024

Uno de los retos del profesorado es el diseño de materiales educativos para generar «engagement» en la enseñanza digital; aspecto relevante en diversas materias universitarias en las que el rendimiento está influenciado por su complejidad y por factores motivacionales. El objetivo de este trabajo es evaluar los efectos del diseño de un «e- textbook» en el «engagement» hacia el aprendizaje digital. La metodología de investigación responde a un diseño cuasi-experimental; una primera fase incluye el diseño del «e-textbook» y su validación por un grupo de siete expertos. En la segunda fase, donde se realizó el cuasi-experimento, participaron 178 estudiantes (88 en el grupo experimental y 90 en el de control) de una universidad cubana. Los estudiantes que utilizaron el «e-textbook» consiguieron una mejora significativa del «engagement» y el rendimiento académico. Estos resultados refuerzan la necesidad de que los profesores diseñen recursos interactivos para la enseñanza digital.
Percepciones parentales sobre hijos con alta capacidad y experiencia escolar
Authors: Gomez-Arizaga María Paz , Conejeros-Solar María Leonor , Catalán Henríquez Sandra , Sandoval-Rodríguez Katia , Schiller Sánchez Macarena
Published: May 2024

El artículo presenta las percepciones de los padres de hijos/as con alta capacidad en torno a la comprensión de dicha condición y su visión respecto a la experiencia escolar. Se utilizó una metodología cualitativa y se realizaron entrevistas grupales con 51 padres y madres de cuatro establecimientos educacionales en Chile. Los resultados evidencian que los padres presentan percepciones diversas sobre la alta capacidad en las que describen perfiles tanto tradicionales como atípicos. Desde lo escolar, si bien existen experiencias positivas, hay también malestar, en el que expresan un clima social de aula no idóneo para este grupo. Los padres son agentes críticos e informantes claves para la visibilización de la alta capacidad, tanto desde la identificación y atención, como para brindar una mejor experiencia escolar a sus hijos/as desde el reconocimiento profundo de sus características y vivencias.
Problemas profesionales en la formación docente: análisis de un ciclo reflexivo
Authors: Olivares Díaz Daniela , Flores Martínez Pablo
Published: May 2024

Esta investigación se desarrolla en el contexto de la formación continua de formadores de profesores de matemáticas. El objetivo es describir y analizar un ciclo de reflexión realizado por una de las formadoras, en un taller sobre problemas profesionales. La investigación tiene un enfoque cualitativo-interpretativo. A través de un análisis de contenido se examinan datos de la participación en el taller. El análisis se enfoca en dos dimensiones: tipo de problemas profesionales y tipo de interés en que se centra la reflexión. Como resultado, se encuentra que el problema planteado inicialmente evoluciona a medida que avanza el taller. Las reflexiones parten con un interés técnico, pero evolucionan hacia un interés práctico y emancipador. Se concluye que un taller de este tipo puede contribuir al desarrollo profesional de los formadores de profesores y que el análisis realizado puede contribuir a la sistematización del estudio de este tipo de experiencias.
Treatment of cholangiocarcinoma by pGCsiRNA-vascular endothelial growth factor in vivo
Authors: Lu Shenglin , Li Jun
Published: May 2024

Background

The early diagnosis and treatment of cholangiocarcinoma may benefit from specific tumor markers to be used in clinical practice.

Objectives

To investigate whether the pGCsiRNA-vascular endothelial growth factor (VEGF) can affect the onset and progression of cholangiocarcinoma and its possible mechanism using the targeted therapy of nude mouse model of cholangiocarcinoma with attenuated Salmonella carrying the plasmid pGCsiRNA-VEGF.

Methods

The nude mouse model of cholangiocarcinoma was established by tail vein injection of QBC939 cells and given attenuated Salmonella carrying the plasmid pGCsiRNA-VEGF. One month later, the tumor volume of nude mice was observed, and the tumor growth curve was plotted. The harvested tumors were weighed and detected for tissue structural changes and cell death status by hematoxylin–eosin staining. The protein and mRNA expressions of VEGF, matrix metalloproteinase 2 (MMP2), and MMP9 were detected by Western blotting and PCR, respectively.

Results

The tumor volume and weight of the pGCsiRNA-VEGF group were significantly smaller than those of the mock and the si-scramble groups (P < 0.05). The expressions of VEGF, MMP2, and MMP9 at the transcriptional and translational levels were inhibited by pGCsiRNA-VEGF. PGCsiRNA-VEGF promoted tissue apoptosis and destroyed the tissue structure.

Conclusions

In vivo silencing of VEGF can affect cell survival and inhibit cell migration, invasion, and development, probably by enhancing apoptosis and inhibiting the expressions of MMP2 and MMP9.
Structural Analysis of Some Pottery Fragments Belonging to Hamangia (Phase III) Culture
Authors: Brezoi Dragos-Viorel , Iordache Adrian , Gheboianu Anca Irina , Voinea Valentina
Published: May 2024

The paper presents a structural analysis of two pottery fragments belonging to the Hamangia phase III Ceamurlia culture, discovered in a settlement with several living levels on the northern shore of Lake Techirghiol, at the Minerva – Paloda Hill. From two ceramic fragments, fired in a reducing atmosphere, samples were taken to perform X-ray diffraction (XRD) and wavelength‐dispersive X-ray fluorescence spectra (WDXRF) analyzes to determine the crystalline structure and composition of the ceramic materials. Digital optical microscopy was used to observe the details of the fracture surfaces of these ceramic fragments. This work contributes to the knowledge of the techniques and materials used by the Hamangia civilization in the manufacture of ceramic vessels.
Solar-Driven Photobleaching of Lignocellulosic Biomass
Authors: Grigorescu Ramona Marina , Iancu Lorena , Ion Rodica-Mariana , David Madalina Elena , Slămnoiu-Teodorescu Sofia
Published: May 2024

Lignocellulose material is the main natural resource for the pulp and paper industry, and for its application the material should have a degree of whiteness as high as possible. For this reason, different bleaching treatments were applied during time. In this paper, the photobleaching induced by solar light of a lignocellulosic biomass using NaClO was studied. The colorimetric measurements, UV spectra absorption, and FTIR spectra changes are evaluated and discussed in this paper. The changes of L*a*b parameters can be considered a proof of the reactions generated by hypochlorite radicals during solar light exposure, leading to a biomass whitening.
Temporal and spatial accounts of sound perception. An overview of the main historical sources and theoretical problems
Authors: Di Stefano Nicola
Published: May 2024

Music has been primarily conceived as a temporal art. However, over the last two centuries or so, researchers across different disciplines including musicology, psychology, and philosophy, have been intrigued by the spatial nature of music and sounds, using spatial concepts to define music. This paper aims to demonstrate that an understanding of music perception from a temporal perspective inherently implies a certain spatial dimension. To do this, first, I briefly examine some key arguments that lead to conceiving sound perception in temporal terms. At the same time, I highlight some of the limitations of a purely temporal account of sound perception which necessitate the incorporation of spatial considerations into the conceptualization of sound perception. Consequently, I move on to consider prominent spatial accounts of musical sounds that have been elaborated by psychologists, musicologists, and music composers. In conclusion, I discuss some of the challenges arising from the analogy between music and space, whether conceived in perceptual or cognitive terms.
The white and black colour attributes in the Natural Colour System
Authors: da Pos Osvaldo , Fiorentin Pietro , Cristoforetti Giulia , Freuli Francesca , Guidolin Sara , Nitri Pasqualina , Salamina Concetta
Published: May 2024

This phenomenological research investigates how it is possible to determine the extent to which a chromatic colour appears white and black in order to use it to build a new Colour Rendering Index. We tested two methods of subjective evaluation; in the first, the perceptual presence of white (and black) in a colour alone was assessed on a unipolar intensity scale, independently for the two attributes. In the second method, evaluations of whiteness (and blackness) were conducted for colours presented in a sequence ordered from the least to the greatest presence of the respective attribute. In both tests evaluations were made either by moving an arrow on a slider from left (minimum) to right (maximum) or by choosing a grey cylinder that matched the same degree of similarity to white (and black) as the test colour. In four experiments, 16 colours of 4 hues and 4 different shades were studied; in a fifth experiment, 48 colours, 12 for each quadrant of the colour wheel, were studied; finally, in another test, 10 greys were studied. In the first three experiments, the results were unexpected, as the evaluations of whiteness and blackness were complementary, adding up to 100%, while in the current NCS, 100% includes not only the evaluation of white and black but also that of chromaticness, therefore white and black are not complementary. In the fourth and fifth experiments, the sum of the evaluations of white and black was always less than 100%, in accordance with the present NCS. In the last experiment, the evaluations of white and black given independently to the 10 greys samples were complementary, confirming the bipolar nature of white-black continuum. Suggestions have been provided to resolve the discrepancy between the results of this research and the structure of the current NCS.
The role of nitro oxidative factors in metabolic dysfunctions: A link between severe obesity and weight-loss treatment – a narrative review
Authors: Ion Razvan Marius , Sibianu Melania , Neagoe Radu , Sala Daniela , Beresescu Felicia , Daniealopol Valentin , Daniealopol Ruxandra , Muresan Mircea
Published: May 2024

Introduction: Metabolic syndrome (MS) is linked to oxidative stress and intracellular redox imbalance, both triggered by chronic inflammatory conditions. The aim of our research was to figure out if bariatric surgery changes the production of free radicals in obese people. In addition, the relationship between metabolic syndrome(MS) and associated conditions is represented by oxidative stress (OS) and intracellular redox imbalance, both of which are induced by the chronic inflammatory conditions that define MS.

Methods: The literature search was conducted on PubMed, Cochrane Library, and ScienceDirect, using terms related to severe obesity, nitro-oxidative factors, pro-inflammatory status and reactive oxygen species. Six studies were included. We included papers published till 2022, with a concentration on more recent publications (January 2019 to December 2022).

Results: Studies that analyzed the status of the patient after bariatric surgery at 1, 2, 3, 6, 12 months were included in the review, regarding inflammation: CRP levels,IL-6, and regarding oxidative stress: MPO serum activity, blood plasma proteins: dityrosine, kynurenine, glycophore, amyloid and Amadori products, had been found strongly statistically significant decreased at each periodic analyze, the same thing applied to regulatory hormones such as leptin, and due to the fact that these patients have the possibility to keep their weight stable for a longer period, all these factors kept their levels low even 4 years after the intervention.

Conclusion: Bariatric surgery is an efficient and quick solution in increasing the quality of life.
Diagnostic value of stress myocardial perfusion imaging in combination with computed tomography angiography for coronary slow flow
Authors: Ge Xin , Zhou Ding , Zhou Yanmin , Sun Jiahe , Jing Rui
Published: May 2024

Introduction: To date, there are few reports on computed tomography angiography (CTA) in combination with stress myocardial perfusion imaging (SMPI) in the diagnosis of coronary slow flow (CSF).

Methods: A total of 62 patients with suspected CSF who were scheduled to undergo CTA, SMPI and coronary angiography (CAG) from June 2019 to June 2021 were selected. With the results of CAG as the gold standard, the value of CTA plus SMPI in the diagnosis of CSF was analyzed.

Results: Of the 62 patients, 52 (83.87%) were diagnosed with CSF by CAG. The results of the Kappa consistency test showed that SMPI alone, CTA alone and SMPI plus CTA had 0.565, 0.396 and 0.881 consistency, respectively, with CAG in the diagnosis of CSF. The sensitivity, specificity, accuracy, positive predictive value and negative predictive value of SMPI plus CTA in the diagnosis of CSF were 98.08% (51/52), 90.00% (9/10), 96.47% (60/62), 98.08% (51/52), and 90.00% (9/10), respectively, all higher than those of SMPI or CTA alone (P<0.05). The areas under the receiver operating characteristic curves of SMPI alone, CTA alone and SMPI plus CTA in the diagnosis of CSF were 0.754, 0.771 and 0.940, respectively.

Conclusion: CTA and SMPI have high diagnostic values for CSF, and the results of their combination have high consistency with those of CAG.
Correlations of expressions of Toll-like receptor 4 and Janus kinase 3 in peripheral blood mononuclear cells with T helper 17 cell/regulatory T cell imbalance in patients with ankylosing spondylitis
Authors: He Ruyan , Liu Guangpu , Gu Fang , Yang Junxia , Li Meirong
Published: May 2024

Background

We aimed to analyze the correlations of the expressions of Toll-like receptor 4 (TLR4) and Janus kinase 3 (JAK3) in peripheral blood mononuclear cells (PBMCs) with T helper 17 cell (Th17)/regulatory T cell (Treg) imbalance in patients with ankylosing spondylitis (AS).

Methods

A total of 101 AS patients were enrolled into an AS group. Based on the Bath Ankylosing Spondylitis Disease Activity Index (BASDAI) score, they were subdivided into a stable AS (ASS) group (BASDAI score <4 points, n=42) and an active AS (ASA) group (BASDAI score ≥4 points, n=59). Meanwhile, 50 healthy volunteers who received health examination in the same time period were assigned into a healthy control (HC) group. RT-qPCR was performed to determine the mRNA expressions of TLR4 and JAK3 in PBMCs. Enzyme-linked immunosorbent assay was conducted to measure the levels of Th17/Treg-related cytokines [interleukin (IL)-10, IL-17, IL-23, and transforming growth factor-β (TGF-β)] in the serum.

Results

The mRNA expressions of TLR4 and JAK3 had positive correlations with IL-17 (r=0.592, 0.542) and IL-23 levels (r=0.529, 0.590) (P 0.05). The levels of TLR4 mRNA, JAK3 mRNA, IL-17, and IL-23 were all correlated with the occurrence of AS (P<0.05). The areas under the receiver operating characteristic curves of TLR4, JAK3, and their combination in PBMCs for predicting the occurrence of AS were 0.912, 0.835, and 0.919, respectively.

Conclusions

TLR4 combined with JAK3 can effectively predict the occurrence of AS.
The Trends of Potential User Research from 2014-2023 Based on Bibliometric and Bertopic
Authors: Kun Liu , Alli Hassan , Rahman Khairul Aidil Azlin Abd
Published: May 2024

Objective: Despite the increasing importance of lead generation research in increasing product or market share, cost and resource constraints have become a challenge for SMEs.Therefore, this study aims to explore and reveal research themes and market trends hidden in articles on lead generation over the past 10 years.
 .
Theoretical Framework: In this study, qualitative and quantitative methods are combined, and three methods of bibliometrics, network analysis and BERTopic topic modeling are used to analyze the literature.
 
Method:  A total of 7446 articles were analysed using bibliometrics, network analysis and BERTopic thematic modelling as the basis of a mixed method approach.
 
Results and Discussion: The study found that the field is currently experiencing a downward trend after a phase of rapid growth. During this period, the United States and China were the countries with the highest number of articles accounting for 77% of the total; the Journal of Cleaner Journal of Cleaner Production was the most cited journal. In addition, the potential user studies cover 43 mainstream topics, focusing on 6 aspects . In the in-depth analysis of the theme evolution, it was found that the potential user study gradually evolved from the initial multidimensional application to focus on open service, and was more oriented towards the public service field.
 
Research Implications: This provides a strong theoretical basis and practical guidance for identifying potential customers and increasing conversion rates and revenues.
 
Originality/Value: To our knowledge, this is the first study to use a mixed-methods approach to lead generation, which will help researchers to tackle more complex challenges and changes in the future.
Impact of point of care ultrasound rotation on single Saudi emergency medicine program
Authors: Alshibani Lubna , Alkhwaiter Lolo , Alhabib Yara , Aldelaijan Shahad , Alotaibi Naif , Alhabib Yara
Published: May 2024

Background: Emergency ultrasound has become an essential component of patient care and a mandatory skill for emergency medicine (EM) residents. Since 2001, major EM organizations have released guidelines mandating the integration of bedside ultrasonography into EM practice. This study aims to evaluate the ultra sound knowledge of emergency residents and their progress by conducting a survey before and after their emergency ultrasound (EUS) rotation.
Method: This longitudinal prospective study was conducted at King Abdulaziz Medical City in Riyadh, Saudi Arabia, to investigate the improvement in knowledge, interpretation accuracy, and clinical decision-making based on ultrasound findings. The study included first-year residents who joined the residency program in 2023. The research team collected data by administering a pre-test and post-test.
Results: We analyzed data from 12 residents. Half of them had received ultrasound training, and half of them used ultrasound on a daily basis. Regarding the perceived barriers to ultrasound training, the most commonly reported barriers were a lack of training (75.0%) and a lack of equipment (41.7%). All of the residents under the study anticipated the use of ultrasound in their clinical practice. The mean knowledge score of the pre-rotation period was 13.8 ± 2.6, whereas the mean post-rotation score was 17.3 ± 1.6. There was a significant increase in the knowledge score from the pre- to the post-rotation period (p < 0.001).
Conclusion: Our study has highlighted the significant benefits of the EUS rotation, including increased confidence in using ultrasound as a diagnostic tool and an enriched educational experience.
Management challenges of tension bullae in the emergency department: a case report and literature review
Authors: Amiri Maedeh , Gharab Saeid , Esfehani Kourosh , Ebrahimi Hamidreza , Jafarnejad Shabahang , Sadigh Nader , Javan Alireza
Published: May 2024

Background: Patients with chronic obstructive pulmonary disease (COPD) are at risk for tension bullae, potentially leading to tension pneumothorax. Distinguishing tension bullae from tension pneumothorax in acutely dyspneic COPD patients is essential but challenging. A case was presented where chest tube placement in a tension bulla provided initial benefit but resulted in a bronchopleural fistula.
Case Presentation: A middle-aged male with COPD presented to the Emergency Department with severe dyspnea. History, bedside ultrasound, and chest radiograph suggested tension bulla or tension pneumothorax. Computed tomography was done which confirmed tension bulla. Despite bullectomy being the preferred treatment, clinical deterioration necessitated urgent chest tube placement, leading to rapid improvement. However, 2 days later, a bronchopleural fistula developed, requiring thoracotomy.
Conclusion: Emergency physicians must be aware of tension bullae as a rare cause of acute dyspnea in COPD. This case underscores the need for specific management protocols, potentially including smaller diameter catheters for stabilization before definitive surgical treatment.
Sistem Diagnosa Penyakit Pada Tanaman Jeruk Nipis Menggunakan Metode K-Means Berbasis Website
Authors: Aggommy Muhammad Noer
Published: May 2024

Tanaman jeruk nipis sangat mudah ditanaman dikarenakan perawatannya yang tidak rumit dan bibit tanaman yang mudah di temukan, Keadaan tanaman jeruk nipis yang baik bisa dideteksi dengan mengidentifikasi penyakit pada tanaman jeruk nipis. Salah satu metode untuk mendeteksi penyakit tanaman jeruk nipis bisa dilakukan dengan K-Means. Aplikasi pengelompokan penyakit tanaman jeruk nipis menggunakan metode K-Means berbasis Website ini dapat mempermudah mendeteksi penyakti tanaman jeruk nipis , Aplikasi ini berbasis Website sehingga pengguna dapat dengan mudah menjalankan aplikasi ini. Pembuatan aplikasi sistem berbasis Website pendeteksi penyakit tanaman jeruk nipis menggunakan data 24 gejala dan 11 penyakit tanaman jeruk nipis yang dapat digunakan pengguna untuk mendeteksi terdapatnya penyakit pada tanaman jeruk nipis berdasarkan gejala-gejala yang dimasukan oleh User. Data gejala penyakit tanaman jeruk nipis yang dimasukan kedalam sistem adalah suatu data gejala penyakit tanaman jeruk nipis, Gejala- gejala tanaman jeruk nipis tersebut harus dimasukan secara lengkap, karena kesimpulan hasil diagnosa menggunakan persentase yang ditampilkan dihitung secara otomatis oleh sistem dengan menggunakan K-Means. Lalu pada pengujian data ini menggunakan metode K-Means mendapatkan persentase akurasi 80,9% dan presentase eror 19,1%. Kata kunci: K-Means, Data Mining, Clustering, Diagnosis Tanaman Jeruk Nipis.
Implementasi Machine Learning Untuk Prediksi Harga Rumah Menggunakan Algoritma Random Forest
Authors: Hadi Nicholas , Benedict Jason
Published: May 2024

Dengan pentingnya peran rumah dalam kehidupan masyarakat, banyak orang yang pasti bertujuan untuk melakukan pembelian atau penjualan rumah. Dengan banyaknya kriteria – kriteria yang dapat mempengaruhi harga rumah, membuat harga rumah sangat susah untuk di prediksi. Harga rumah tersebut tentu saja dapat diprediksi dengan menggunakan 3 algoritma Machine Learning yaitu Random Forest, Decision Tree, dan Polynomial Regression. Manfaat dalam penelitian ini adalah untuk mengetahui kriteria yang paling mempengaruhi harga rumah, dan memperlihatkan hasil akurasi dari setiap algoritma yang digunakan serta menemukan algoritma prediksi terbaik dari 3 algoritma tersebut. Penelitian ini dilakukan pada dataset harga rumah di King County, USA yang bersumber dari situs Kaggle. Dalam hasil pengujian korelasi dari 13 variabel data yang digunakan, ditemukan bahwa variabel luas rumah, grade, dan luas atas rumah mempunyai nilai pengaruh besar terhadap harga rumah. Hasil pengujian 3 algoritma tersebut dievaluasi dengan nilai R2 dan RMSE. Algoritma Random Forest dinyatakan menghasilkan prediksi terbaik dibandingkan 2 algoritma tersebut, dengan tingkat akurasi sebesar 86,54% dan nilai RMSE sebesar 144913.73.
Sistem Pendeteksi Kantuk pada Mata Pengendara Roda Empat dengan Algoritma Convolutional Neural Network
Authors: Petra Michael Yan , Lina Lina
Published: May 2024

Mengantuk merupakan sifat alamiah manusia dikarenakan mengantuk menandakan manusia membutuhkan waktu istirahat yang cukup, namun mengantuk pada waktu dan tempat yang tidak tepat sangat dapat menjadi sumber kecelakaan, salah satunya mengantuk pada saat berkendara. Karena itu dirancang sebuah sistem untuk mendeteksi kantuk dengan cara mendeteksi mata manusia dengan model YOLO yang akan diklasifikasi dengan model CNN apakah kedua mata pengguna sedang tertutup atau terbuka, jika kedua mata tertutup maka akan mengeluarkan output berupa alaram yang diharapkan membangunkan pengguna yang terdeteksi mengantuk. Hasil kalkulasi AP terhadap model pendeteksian dengan akurasi sebesar 100% dan hasil pengujian confusion matrix terhadap model klasifikasi memiliki akurasi sebesar 96% pada nilai presisi, 97% pada nilai recall, dan 97% pada F1-Score
PENERAPAN ELEMEN ARSITEKTUR DALAM MENINGKATKAN KUALITAS HIDUP LANSIA PADA RUANG PUBLIK
Authors: Sariputra Jefferson , Jayanti Theresia Budi
Published: May 2024

Over time, older people experience physical and cognitive changes, such as: hearing, vision and physical strength impairment, which affect their well-being. Suitable mobile equipment should be considered. Seniors need a quiet space, good sleep, and social interaction. Elderly is synonymous with age and age, if discussed in general terms, life expectancy in Indonesia is quite low compared to other countries. One of the problems that occurs is due to higher levels of air pollution and a lack of implementing a healthy lifestyle. With the hope of improving the quality of life of the elderly and also the life expectancy of the elderly, we will implement several architectural elements that prioritize safety and comfort for the elderly. The problems that occur focus on the welfare of the elderly in Indonesia. The method of this research uses an architectural approach, which uses methods to analyze and design an architectural design object effectively. The results of this research develop the application of architectural elements which can later be applied to the use of building designs for the elderly. Architectural elements will be implemented based on the basic needs of the elderly.
Keywords: architectural elements; elderly; life expectancy
Abstrak
Seiring waktu, orang lanjut usia mengalami perubahan fisik dan kognitif, seperti:  gangguan pendengaran, penglihatan dan kekuatan fisik, yang mempengaruhi kesejahteraan mereka. Peralatan bergerak yang sesuai harus dipertimbangkan. Lansia membutuhkan ruang yang tenang, tidur yang nyenyak, dan interaksi sosial. Lansia identik dengan umur maupun usia, jika dibahas scara umum, angka Usia harapan hidup di Indonesia tergolong cukup rendah dibandingkan negara – negara lain. Salah satu masalah yang terjadi dikarenakan tingkat polusi udara yang lebih tinggi dan kurangnya penerapan pola hidup sehat. Dengan memiliki harapan untuk meningkatkan kualitas hidup lansia dan juga angka usia harapan hidup lansia, akan melakukan penerapan beberapa elemen arsitektur yang mementingkan keamanan serta kenyamanan bagi lansia. Masalah yang terjadi berfokus kepada kesejahteraan lansia di Indonesia. Metode dari penelitian ini menggunakan pendekatan arsitektur, yang dimana penggunaan metode untuk menganalisis dan merancang suatu objek rancangan arsitektur secara efektif. Hasil penelitian ini mengembangkan penerapan elemen arsitektur yang nantinya dapat diterapkan ke dalam penggunaan desain bangunan untuk lansia. Elemen arsitektur nantinya akan diterapkan berdasarkan kebutuhan dasar para lansia.
КОНЦЕПТУАЛЬНІ ПІДХОДИ ФОРМУВАННЯ ФАХОВОЇ КОМПЕТЕНТНОСТІ МАЙБУТНІХ ОФІЦЕРІВ ВІЙСЬКОВОЇ РОЗВІДКИ В УМОВАХ ІНФОРМАЦІЙНО-ОСВІТНЬОГО СЕРЕДОВИЩА ВВНЗ
Authors: Шумков Ігор
Published: May 2024

У статті обґрунтовано концептуальні підходи та їх взаємодію на удосконалення освітньої професійної підготовки майбутніх військових фахівців вищої військової школи з метою створення цілеспрямованого педагогічного впливу на підвищення професійного вдосконалення, збагачення рівня військової фахової майстерності, формування фахової компетентності до майбутньої діяльності. Охарактеризовано системний, цілісний, діяльнісний, інтегративний, особистісний, рефлексивний, компетентнісний, акмеологічний, синергетичний підходи формування фахової компетентності майбутніх офіцерів військової розвідки в умовах інформаційно-освітнього середовища вищого військового навчального закладу.
ЗМІСТ ТА СТРУКТУРА ГОТОВНОСТІ МАЙБУТНІХ УЧИТЕЛІВ ТЕХНОЛОГІЙ ДО ВИКОРИСТАННЯ ЦИФРОВИХ ОСВІТНІХ РЕСУРСІВ У ПРОФЕСІЙНО-ПЕДАГОГІЧНІЙ ДІЯЛЬНОСТІ
Authors: Нищак Дмитро
Published: May 2024

У статті зроблено спробу дослідити зміст та структуру готовності вчителя технологій до використання цифрових освітніх ресурсів (ЦОР) у професійно-педагогічній діяльності. Зміст готовності педагога до використання ЦОР формується у процесі вивчення комплексу навчальних дисциплін інформатичного циклу (“Інформатика”, “Інформаційні технології в освіті”, “Захист інформаційних ресурсів” та ін.), а також комп’ютерно-орієнтованих навчальних курсів професійного спрямування (“Комп’ютерна графіка”, “Системи автоматизованого проектування” та ін.).
Структуру готовності вчителя технологій до використання цифрових освітніх ресурсів у професійно-педагогічній діяльності складають такі взаємопов’язані компоненти: інформаційно-технічна компетентність, педагогічна компетентність, мотивація та відкритість до новацій, стратегічне мислення.
Propeller Ceiling Effect in Forward Flight
Authors: Cai Jielong , Gunasekaran Sidaard
Published: May 2024

The study extends the investigation of the fixed-pitch small-scale propeller in the ceiling effect to forward flight conditions at different propeller incidence angles. Force-based experiments, phase-locked particle image velocimetry (PIV), and surface oil flow visualization were conducted on two APC propellers at the University of Dayton Low Speed Wind Tunnel. For propellers in edgewise flight, the power required at constant thrust decreases at small advance ratios for each [Formula: see text] and then increases with a further increase in the advance ratio. Tilting the propeller forward reduces the ceiling effect benefits in both thrust and power, particularly at higher advance ratios. Performance similarity in the propeller ceiling effect at different [Formula: see text] is observed, and a performance prediction method is proposed. Phase-locked PIV showed an increase in the propeller inflow angle in the ceiling effect at small advance ratios, resulting in higher thrust generation. This effect reduces with an increase in the advance ratio due to minimized interactions with the ceiling plate. Hence, the measured propeller in-ceiling-effect (ICE) propeller performance cannot represent the propeller ICE performance at a higher forward flight speed. Additionally, PIV and surface flow visualization indicated the presence of a stagnation point on the ceiling plate near the trailing side of the propeller disk at higher advance ratios, leading to a reduction in propeller thrust generation.
Interpreting Heat Flux Measurements in a Vitiated Backward-Facing Step Flow
Authors: Colborn Jennifer , O’Connor Jacqueline , Tricard Nicolas , Denman Jonathan , Zhang Peiyu , Zhao Xinyu
Published: May 2024

The investigation of the relative impact of convective and radiative heat flux from vitiated gases to a combustor wall was performed in a backward-facing step combustor. Backward-facing step flows have many flow features of gas turbine combustors (recirculation, impingement, and boundary-layer development), but in a two-dimensional, nonproprietary geometry. Reynolds number, gas temperature, and plate temperature were varied as heat flux was measured in different regions of the flow. Measurements were made using a heat flux sensor and radiometer, which measure total and radiative heat flux, respectively. The highest total heat flux was measured at the impingement location and the lowest in the recirculation zone. Separating the total heat flux into the radiative and convective components is not straightforward and requires simulations of the experiment. Spectrally resolved Monte Carlo ray-tracing simulations are used to scale the radiative heat flux measurements for the separation of convective and radiative heat flux from the total heat flux measurements. These calculations show that only about 30% of incident radiation is captured by the radiometer due to spectral differences between the two sensors. Once the radiation measurement is corrected, experimental results show higher radiative than convective heat transfer at low Reynolds numbers ([Formula: see text]), highlighting the impact of radiative heat transfer in hot gas environments.
Corner Vortex Structures Within Recirculation Zones of Confined Bluff-Body Flows
Authors: Squeo Joseph N. , Sykes Joshua P. , Comer Adam L. , Gallagher Timothy P. , Rankin Brent A.
Published: May 2024

The vortical structures of recirculation zones in turbulent nonreacting and premixed reacting flows around confined equilateral-triangle bluff bodies are investigated using large-eddy simulations. A three-dimensional flow structure is observed within the recirculation zones of reacting and nonreacting cases; the structure includes both the “spanwise” vortices that extend the length of the recirculation zone and “corner vortex structures” that are situated adjacent to the bluff-body trailing edge and spanwise walls. The corner vortex structures enhance the mixing and residence times of fluid inside the recirculation zone. Fluid is circulated between the spanwise vortices and corner vortex structures. Corner vortex structures always appear downstream (relative to the local flow) of the boundary-layer separation location on the spanwise walls within the recirculation zone, and they are absent when boundary-layer formation on the spanwise walls is prevented. Laminar boundary-layer theory predicts the boundary-layer separation locations within [Formula: see text] of the calculated values from the large-eddy simulations in all but one case. These results suggest that 1) boundary-layer separation on the spanwise walls is a necessary condition for the formation of corner vortex structures, and 2) boundary-layer separation on the spanwise walls is caused by an adverse pressure gradient in the recirculation zone.
Communication Strategies of Children with Autism Spectrum Disorders' Companions in Teaching Sexual Education
Authors: Suhanto Anastasia , Dwihadiah Desideria Lumongga
Published: May 2024

Peran pendamping bagi individu berkebutuhan khusus penyandang autisme sangatlah penting. Kesulitan berinteraksi dengan lingkungan sosial di sekitarnya yang dialami para penyandang autisme, harus dapat dijembatani dengan bantuan pendamping. Autisme memiliki spektrum yang sangat luas dengan ciri yang berbeda pada setiap individu. Dalam memasuki masa pubertas yang ditandai dengan perubahan fisik dan masalah seksualitas, kesulitan yang dialami individu penyandang autisme bertambah sehingga pendamping perlu memberikan edukasi tentang seksualitas yang tepat. Penelitian ini akan mengkaji bagaimana strategi komunikasi yang dilakukan para pendamping dalam memberikan pendidikan seksual bagi individu penyandang autisme yang memasuki masa pubertas. Penelitian ini menggunakan pendekatan kualitatif dengan metode deskriptif, dengan 7 informan yang terdiri dari guru siswa autis dan orang tua yang diwawancarai. Selain itu dilakukan observasi non partisipan melalui zoom saat guru memberikan pelajaran yang terkait dengan seksualitas dan pubertas kepada siswa dan saat orang tua berkomunikasi dengan anaknya. Hasil menunjukkan bahwa guru dan orang tua menggunakan strategi komunikasi yang sama dalam membantu menjelaskan tentang seksualitas dan pubertas, yaitu dengan cerita sosial. Cara berkomunikasi mereka juga sangat bervariasi. Cara yang bervariasi ini bergantung pada tingkat kemampuan anak dalam komunikasi dan pemahaman serta kebiasaan komunikasinya serta kemampuan dan kecepatan anak menyerap informasi, termasuk dinamika emosi pada anak.
Influence of the Narrative of Pop-Up Promo Notification Go-JEK on Brand Attitude
Authors: Oktaviane Maria Jezzixa , Widiasari Natalia
Published: May 2024

Digitalisasi meningkatkan bisnis, dan juga serta merta, menghadirkan kompetisi. Untuk itu, perusahaan dituntut untuk berinovasi dalam hal strategi pemasaran untuk memastikan pendapatan dan mempertahankan konsumen. Gojek berinovasi dengan Notifikasi Pop-Up yang muncul melalui ponsel pintar para pengguna. Notifikasi Pop-Up ini ditujukan untuk berinteraksi dengan konsumen dan memberikan berbagai penawaran. Oleh karena itu, menjadi penting untuk mengidentifikasi pengaruh narasi promosi yang diusung melalui Notifikasi Pop-Up terhadap Brand Attitude dari para pengguna Gojek. Narasi sebagai variabel bebas terdiri dari sub variabel copywriting, pilihan kata, dan gaya bahasa. Sedangkan, Brand Attitude, sebagai variabel terikat, memiliki kognitif, afektif, dan konatif sebagai sub variabelnya. Penelitian ini menggunakan pendekatan kuantitatif dengan jenis penelitian korelasi, dan perolehan sampel menggunakan teknik purposif. Kuesioner dibagikan kepada pengguna Gojek yang berusia 15 sampai 24 tahun yang berdomisili di DKI Jakarta. Hasil penelitian menemukan bahwa variabel narasi promosi pada Notifikasi Pop-Up Gojek berpengaruh secara moderat terhadap variabel Brand Attitude. Dengan demikian, Notifikasi Pop Up pada aplikasi Gojek berpotensi untuk dioptimalisasi untuk tujuan branding maupun customer engagement dalam aplikasi Gojek.
ANALISIS MUTASI, KOMPENSASI DAN PENGEMBANGAN KARIR TERHADAP TURNOVER INTENTION PEGAWAI DENGAN KEPUASAN KERJA SEBAGAI VARIABEL INTERVENING PADA DIREKTORAT JENDERAL BEA DAN CUKAI
Authors: Handaya Setia , Suyanto  , Jayadi  , Indri Astuti
Published: May 2024

The Directorate General of Customs and Excise (DJBC) is a part of the Ministry of Finance of The Republic of Indonesia which has substantial human resources. Based on data as of 1 December 2022, the number of DGCE employees reached 16,149 people and were spread across 20 regional offices and 3 main service offices throughout the territory of the Republic of Indonesia. Based on employee profiling data conducted in March 2023, 72% of these employees are employees who have home bases in Java. By considering various aspects DGCE carries out job rotation process and career development for these employees.
This study aims to analyze the effect of job rotation, compensastion and career development on turnover intention with job satisfaction as an intervening variable at the Directorate General of Customs and Excise. This research is based on several previous studies which show that job satisfaction can influence the relationship between job rotation, career development, and turnover intention.
The research method used is quantitative research using a survey (questionnaire) as a data collection instrument. Respondents in this study were employees at the Directorate General of Customs and Excise who were spread throughout the territory of the Republic of Indonesia with positions from general inspector to supervisor and functionally equivalent. The research sample was taken using the slovin formula with a total of 3.813 respondents. The collected data will be analyzed using the validity test, reliability test, and sobel test.
The results of this study are expected to provide an overview of the effect of job rotation and career development on turnover intention with job satisfaction as an intervening variable at the Directorate General of Customs and Excise.
PENGARUH KOMPOSISI MEDIA TANAM TERHADAP PERTUMBUHAN BIBIT JAMBU BIJI
Authors: Suhaimi Suhaimi , Nurjani Nurjani , Santoso Eddy
Published: May 2024

Jambu biji (Psidium guajava L) jenis tanaman dari luar yang sudah banyak dikembangkan di Indonesia. Penggunaan media tanam untuk pembibitan cangkokan berbagai jenis media tanam yang digunakan petani. Penggunaan media tanam yang tidak tepat menyebabkan bibit tanaman sering mati. Tujuan penelitian ini adalah untuk mencari keberhasilan tumbuh terbaik dari berbagai perlakuan komposisi media tanam terhadap pertumbuhan bibit jambu kristal. Bahan yang digunakan dalam penelitian ini adalah bibit cangkokan jambu kristal, tanah aluvial, sekam bakar, cocopeat, pupuk kandang ayam, paranet 80%, polybag 13x25, dan kapur dolomit Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) satu faktor perlakuan yaitu faktor komposisi media tanam. Masing-maasing perlakuan diulang sebanyak 4 kali, setiap ulangan terdiri 4 sempel tanaman sehingga jumlah tanaman seluruhnya adalah 112 bibit tanaman. Variabel yang diamati dalam penelitian ini yaitu penambahan tinggi tanaman, jumlah tunas, penambahan jumlah daun dan penambahan diameter batang. Berdasarkan penelitian  dapat disimpulkan bahwa semua komposisi media tanam sama-sama baiknya.
UJI POTENSI BAKTERI PELARUT FOSFAT DARI ENTISOL TERHADAP KETERSEDIAAN FOSFOR TANAH
Authors: Azzahra Tia Tilana , Vitri Indrawati Urai Suci Yulies , Nuriman Muhammad
Published: May 2024

Mikroorganisme tanah yang mampu menyediakan unsur hara bagi tanaman adalah bakteri pelarut fosfat. Bakteri pelarut fosfat merupakan kelompok mikroba yang dapat mengubah fosfat tidak terlarut dalam tanah menjadi bentuk yang larut dengan mensekresi asam – asam organik dan melarutkan P yang teradsorpsi oleh senyawa. Penelitian ini dilakukan untuk mendapatkan isolat yang memiliki kemampuan melarutkan fosfat dan adaptasi yang tinggi, sehingga dapat dimanfaatkan pada berbagai agroekosistem lahan pertanian. Penelitian in dilaksanakan di lahan pertanian Desa Semperiuk A Kecamatan Jawai Selatan Kabupaten Sambas Provinsi Kalimantan Barat. Penelitian ini dilaksanakan pada 23 Februari 2023 – 30 Mei 2023. Penelitian ini menggunakan Rancangan Acak Lengkap dengan karakteristik makroskopis spesies bakteri pelarut fosfat sebanyak 5 taraf perlakuan dan diulang sebanyak 4 kali. Semua perlakuan dilarutkan sebanyak 5/100ml dan diaplikasikan ke media tanam. Pemberian bakteri pelarut fosfat pada tanah memiliki hasil yang berbeda terhadap tiap parameternya. Hipotesis yang diajukan dalam penelitian ini adalah pemberian bakteri pelarut fosfat diduga dapat mempengaruhi kelarutan fosfat pada tanah Entisol. Hasil penelitian menunjukkan bahwa pemberian bakteri pelarut fosfat tidak berbeda nyata terhadap ketersediaan P tetapi memiliki nilai rerata tertinggi pada parameter pH tanah, N-total tanah, dan P-total tanah.
PENGARUH KONSENTRASI AUKSIN TERHADAP PERTUMBUHAN SETEK BATANG JERUK LEMON PADA MEDIA TANAH GAMBUT DAN TANAH PMK
Authors: Tarigan Febriyanto Meggy , Nurjani Nurjani , Palupi Tanti
Published: May 2024

Jeruk lemon memiliki kandungan vitamin C yang tinggi dibandingkan jeruk nipis. Salah satu hambatan dalam pengembangan tanaman ini adalah tidak tersedianya bibit atau bahan tanam yang berkualitas dikarenakan lamanya memperoleh tanaman asal biji. Salah satu alternatif yaitu dengan menggunakan bibit hasil perbanyakan secara vegetatif menggunakan setek. Penelitian ini bertujuan untuk mengetahui konsentrasi auksin yang optimal serta mengetahui media yang terbaik antara tanah gambut dan tanah PMK terhadap pertumbuhan setek batang pada jeruk lemon. Penelitian ini dilaksanakan di Kota Pontianak, Kalimantan Barat. Penelitian dilaksanakan selama 3 bulan, sejak bulan November 2021 sampai Februari 2022. Rancangan yang digunakan dalam penelitian ini adalah Rancangan Petak Terpisah (Split Plot), terdiri dari 2 faktor perlakuan yaitu perlakuan media (T) sebagai main plot dan pemberian konsentrasi auksin (R) sebagai sub plot. Masing-masing perlakuan diulang 3 kali, dengan 5 tanaman sampel. Perlakuan media yang dimaksud adalah: t1 = campuran media tanah gambut + sekam bakar + pupuk kandang (1:1:1); (v/v), t2 = campuran media tanah PMK + sekam bakar + pupuk kandang (1:1:1) (v/v). Perlakuan konsentrasi yang dimaksud adalah: r1 = 7500 ppm; r2 = 10.000 ppm; r3 = 12.500 ppm. Hasil penelitian menunjukan bahwa interaksi antara media tanah dan konsentrasi auksin pada berbagai konsentrasi berpengaruh sama terhadap semua variabel pengamatan. Pengaruh media campuran tanah gambut dan campuran tanah PMK berpengaruh terhadap panjang tunas. Konsentrasi auksin berpengaruh terhadap volume akar. Sehingga hasil penelitian ini dapat disimpulkan konsentrasi auksin yang terbaik pada konsentrasi 12500 ppm pada variabel pengamatan volume akar dan media yang terbaik dari penelitian yang dilakukan adalah media tanah gambut pada variabel pengamatan panjang tunas.