bluuebunny/crossref_metadata_2025 huggingface dataset:
Estudio de caso sobre el efecto de las percepciones del turista en los comportamientos posconsumo
Authors: Otero Gómez Maria Cristina , Giraldo Pérez Wilson , Gómez Caselles Mónica Patricia
Published: July 2024

Objetivo: establecer la asociación entre las percepciones de los turistas que visitan Villavicencio y la Hacienda CSQ´No con sus intenciones posconsumo. Método: Se realizó una revisión de literatura para los diferentes enfoques de calidad y valor percibido, intención de recomendación y recompra, y las escalas desarrolladas para su medición. Se planteó un ejercicio investigativo aplicado, circunscrito a las percepciones de los turistas que visitaron la Hacienda CSQ´No sobre sus intenciones comportamentales, mediante encuestas. La metodología utilizada fue cuantitativa, con un muestro no probabilístico por conveniencia. Resultados: Se confirmó que existe una correlación positiva y significativa entre la calidad y el valor percibido con la intención de recompra y de recomendación. Asimismo, se observa una diferencia comportamental entre los grupos que visitan el destino. Discusiones: Los hallazgos contribuyen a una mejor comprensión de las percepciones y actitudes comportamentales posconsumo de los turistas que visitan el destino, teniendo en cuenta el efecto moderador del grupo de viaje. Conclusiones: El conocimiento de las actitudes comportamentales de los grupos, puede contribuir al desarrollo general y a la mejora de la ventaja competitiva del destino.
La coinnovación en la relación productor de café y proveedor: caso del departamento del Meta
Authors: Molano Elda Lilian Molano Molano , Arosa Carrera Charles Robin , Vargas Bacci Martha Lucía
Published: July 2024

Recientemente, el estudio de las relaciones comerciales desde el paradigma del marketing relacional ha tenido acogida en los agronegocios, pues busca comprender la importancia de las relaciones comerciales entre productor y proveedor. Así, el propósito de este artículo fue caracterizar el comportamiento de las distintas dimensiones de la calidad a partir de la relación comercial y sus variables. La metodología tuvo un enfoque descriptivo de tipo concluyente, con enfoque funcionalista. Para ello, se realizó una revisión documental general del sector del café en el departamento del Meta, junto con 41 encuestas a productores y 3 entrevistas a coordinadores de cadena. Los hallazgos se capitalizaron en la calidad, la innovación y la coinnovación entre productores de café y proveedores.
Approaches to higher education teaching: validation of the Serbian adaptation of the approaches to teaching inventory - revised (ATI-R)
Authors: Pekic Jasmina , Milutinovic Jovana , Lungulov Biljana
Published: July 2024

The aim of the conducted research was the construct validation of the Serbian
translation of the Approaches to Teaching Inventory - Revised (ATI-R), in
the domain of exploring the factor structure, which was shown to be
remarkably unstable in earlier research of this kind. In addition, since the
previous examinations of the ATI-R psychometric properties were mainly
reduced to reliability, the second goal of the research includes
psychometric validation of the instrument in the domain of reliability,
validity, representativeness and homogeneity. The research was conducted on
a random sample of 317 teachers and associates from 13 faculties of the
University of Novi Sad, where 60.3% of respondents were female. The revised
version of the inventory contains 22 items with a five-point Likert response
scale. The results regarding the first objective point to a meaningful
three-factor structure, which differs from the original two-factor structure
in a way that the factor Transmission of knowledge/Focus on the teacher is
decomposed into the factor Transmission of basic knowledge/Focus on the
teacher, as well as the factor Transmission of knowledge for the purpose of
conceptual development and change/Focus on both actors of the teaching
process. Examination of psychometric characteristics suggests that ATI-R is
the instrument with good, that is, acceptable parameters of the tested
properties, which can be used both in academic and practical frameworks.
Neurotrophic tyrosine receptor kinase gene fusions in adult and pediatric patients with solid tumors: a clinicogenomic biobank and record linkage study of expression frequency and patient characteristics from Finland
Authors: Zhang Wei , Schmitz Arndt A. , Kallionpää Roosa E. , Perälä Merja , Pitkänen Niina , Tukiainen Mikko , Alanne Erika , Jöhrens Korinna , Schulze-Rath Renate , Farahmand Bahman , Zong Jihong
Published: July 2024

Background: Neurotrophic tyrosine receptor kinase (NTRK) gene fusions are oncogenic drivers. Using the Auria Biobank in Finland, we aimed to identify and characterize patients with these gene fusions, and describe their clinical and tumor characteristics, treatments received, and outcomes.
Material and methods: We evaluated pediatrics with any solid tumor type and adults with colorectal cancer (CRC), non-small cell lung cancer (NSCLC), sarcoma, or salivary gland cancer. We determined tropomyosin receptor kinase (TRK) protein expression by pan-TRK immunohistochemistry (IHC) staining of tumor samples from the Auria Biobank, scored by a certified pathologist. NTRK gene fusion was confirmed by next generation sequencing (NGS). All 2,059 patients were followed-up starting 1 year before their cancer diagnosis.
Results: Frequency of NTRK gene fusion tumors was 3.1% (4/127) in pediatrics, 0.7% (8/1,151) for CRC, 0.3% (1/288) for NSCLC, 0.9% (1/114) for salivary gland cancer, and 0% (0/379) for sarcoma. Among pediatrics there was one case each of fibrosarcoma (TPM3::NTRK1), Ewing’s sarcoma (LPPR1::NTRK2), primitive neuroectodermal tumor (DAB2IP::NTRK2), and papillary thyroid carcinoma (RAD51B::NTRK3). Among CRC patients, six harbored tumors with NTRK1 fusions (three fused with TPM3), one harbored a NTRK3::GABRG1 fusion, and the other a NTRK2::FXN/LPPR1 fusion. Microsatellite instability was higher in CRC patients with NTRK gene fusion tumors versus wild-type tumors (50.0% vs. 4.4%). Other detected fusions were SGCZ::NTRK3 (NSCLC) and ETV6::NTRK3 (salivary gland cancer). Four patients (three CRC, one NSCLC) received chemotherapy; one patient (with CRC) received radiotherapy.
Conclusion: NTRK gene fusions are rare in adult CRC, NSCLC, salivary tumors, sarcoma, and pediatric solid tumors.
Dialoguing on a Graphic Novel in the Language Learning Classroom with Upper Secondary School Students
Authors: Hedman Christina , Magnusson Ulrika
Published: July 2024

Drawing on a larger project on teaching Swedish as a second language to migrant upper secondary school students in Sweden, this paper focuses on one teacher’s literature class and a book-group discussion about a graphic novel based on Selma Lagerlöf’s A Tale of a Manor. The aim was to contribute to further knowledge on the dialogic potential of teacher-led literary discussions on graphic novels with language learners, by focusing on the cumulative aspect of the interaction. We also analyzed the teacher’s role and how it affected the students’ responses and interpretations. Our findings show how the cumulative dialogue created new student insights relating to the novel’s protagonists, literary themes and the saga genre, which is central in Lagerlöf’s novels, and how literary concepts and visual cues were used as resources for interpretation. The discussion of the graphic novel included multifaceted and multimodal analyses, in which the teacher urged the students to formulate interpretations and responses anchored in both the written text and the images. This teacher-led dialogue holds great potential for encouraging students’ literary reading, as well as their confidence when it comes to giving responses to literature, which is of relevance to similar language and literature teaching contexts.
Modelling of Capillary Discharge in Repetition Mode for Short Capillary Systems with Various Filling Methods
Authors: Gasilov V. A. , Savenko N. O. , Sharova Yu. S.
Published: July 2024

Introduction. Currently, frequency modes of operation of electron accelerators based on capillary discharges are actively investigated. Electrons in these systems are accelerated by femtosecond laser pulses passing through the discharge plasma.Materials and Methods. The paper presents results of three-dimensional magnetohydrodynamic modelling of the capillary discharge cycle, including stages of filling a short capillary with working gas (hydrogen), formation of the plasma channel, and restoration of the working medium before the start of the next discharge. Calculations were performed assuming the system is under external cooling, which maintains thermal balance at intermediate stages of the working cycle, and under constant conditions of gas supply and evacuation.Results. The computational experiments demonstrate the capability of generating beams of relativistic electrons with a repetition frequency of approximately one kilohertz.Discussion and Conclusions. The obtained results allow us to speak about the prospects of using LWFA with a short channel length and a high repetition rate of the capillary discharge.
Structural design of composite magnetorheological damper and experimental study on block forming machine
Authors: Li C. , Ji S. , Chen B.
Published: July 2024

To improve the quality of concrete block, a composite magnetorheological damper that is composed of rubber spring and magnetorheological damper for block forming machine is designed combined with the actual demand of block forming machine. The vibration compaction condition of the block is simulated by the test-bed, and the performance parameters. Finally, the designed shock absorber is applied to the block forming machine. The performance of the composite magnetorheological damper was studied by collecting vibration signals. Results show that the vibration reduction effect of the block forming machine is best when the flow Q=99L/min, pressure P=14Mpa of the hydraulic exciter and the control current I=0.5A have large magnetorheological damping. The composite magnetorheological damper has remarkable damping effects on the block-forming machine and improves the forming quality of the block. Autoregressive bispectrum is a suitable and effective method to study magnetorheological dampers.
IMPLEMENTASI KEBIJAKAN SISTEM ONLINE SINGLE SUBMISSION PADA PELAYANAN PERIZINAN DI DPMPTSP KABUPATEN SERANG
Authors: Nida Silvia Lestari  , Arenawati  , Titi Stiawati
Published: July 2024

Online Single Submission (OSS) merupakan aplikasi yang bertujuan memberikan kemudahan berinvestasi melalui penerapan sistem perizinan berusaha terintegritas secara elektronik. Penelitian ini bertujuan untuk menganalisis implementasi kebijakan tentang perizinan melalui sistem OSS pada Dinas Penanaman Modal dan Pelayanan Terpadu Satu Pintu (DPMPTSP) Kabupaten Serang dengan menggunakan teori Edward III, terdapat empat dimensi yaitu : (1) Komunikasi (2) Sumber Daya (3) Disposisi (4) Struktur Birokrasi. Penelitian ini menggunakan jenis penelitian deskriptif dengan desain pendekatan kualitatif, teknik pengumpulan data melalui wawancara. Berdasarkan hasil penelitian diketahui bahwa implementasi kebijakan sistem Online Single Submission pada Dinas Penanaman Modal dan Pelayanan Terpadu Satu Pintu Kabupaten Serang sudah berjalan dengan baik namun belum optimal sesuai dengan tujuan yang diharapkan yaitu memberikan kemudahan dalam pelayanan perizinan. Faktor yang menjadi penyebab tidak optimalnya implementasi kebijakan Online Single Submission adalah faktor komunikasi dan sumber daya yang belum optimal. Dimana komunikasi yang dilakukan oleh Dinas Penanaman Modal dan Pelayanan Terpadu Satu Pintu Kabupaten serang belum belum terjangkau kepada seluruh pelaku usaha yang ada di Kabupaten Serang.
Search for fresh water at the border of the Priazov megablock and the Donbas
Authors: Pigulevskiy P.G. , Svistun V.K.
Published: July 2024

The article presents proposals for improving the methodology and the results of reinterpretation of geoelectrical works in the Donetsk region to refine the surveyresults for underground water exploration, carried out by the «Dniprogeofizika» trust in the 1970s. In the following years, the territory was covered by large-scale gravimetric surveys during the search for various minerals. The authors performed a complex processing and reinterpretation of the available geophysical materials to identify rock-loosening zones based on gravimetric data and assessed the results’ applicability to the study of promising areas for the search for groundwater in modern conditions. A complex analysis of electrical reconnaissance materials showed the effectiveness of their reinterpretation using the data of large-scale gravimetric surveys. The gravimetric maps made it possible to correlate in more detail the tectonic disturbances with local dips detected on individual profiles and areas according to the results of vertical electric probing, and to build a general geological and tectonic framework in which discontinuous disturbances and zones of their densification were harmoniously integrated into the contours of the distribution of sedimentary deposits. Analysis showed that the more detailed the gravimetric survey, the more accurately geological and tectonic inhomogeneities in the upper part of the sedimentary cover are mapped. The use of a database of field gravimetric surveys of various years and scales allows to significantly increase the efficiency of work and reduce the economic costs of underground water searches during the selection and localization of search areas of the first and second stages. The obtained results and the developed improved method of interpretation are proposed to be used when determining the points of water intake wells, not only in the zone of where the Folded Donbass borders the Azov megablock (crystalline massif) of the Ukrainian Shield, but also in places subject to anthropogenic impact.
ANALISIS TATA RUANG, LINGKUNGAN KERJA FISIK, DAN FASILITAS KANTOR TERHADAP KINERJA KARYAWAN
Authors: Haris Rizky Mochammad , Lestariningsih Marsudi
Published: July 2024

Penelitian ini bertujuan untuk mengetahui dan menganalisis tata ruang, lingkungan kerja fisik, dan fasilitas kantor pada PT Pelindo (Persero) Sub Regional Jawa. Penelitian ini menggunakan metode penelitian deskriptif dengan teknik analisis secara kuantitatif asosiatif. Metode pengumpulan data yang digunakan dalam penelitian ini adalah data primer dengan menggunakan kuesioner yang diisi oleh responden yaitu karyawan PT Pelindo (Persero) Sub Regional Jawa yang telah bekerja minimal 1 tahun. Jumlah populasi pada penelitian ini sebanyak 239 orang karyawan. Pengambilan sampel sebanyak 70 responden dengan teknik random sampling dan penentuan jumlah sampel dalam penelitian ini diambil berdasarkan rumus slovin. Metode analisis dalam penelitian ini menggunakan analisis regresi linier berganda dengan bantuan program SPSS (Statistic Product and Service Solution) versi 29. Hasil penelitian menunjukkan bahwa tata ruang berpengaruh positif dan signifikan terhadap kinerja karyawan PT Pelindo (Persero) Sub Regional Jawa, lingkungan kerja fisik berpengaruh positif dan signifikan terhadap kinerja karyawan PT Pelindo (Persero) Sub Regional Jawa, dan Fasilitas Kantor berpengaruh positif dan signifikan terhadap kinerja karyawan PT Pelindo (Persero) Sub Regional Jawa.
„Der Steg sollte möglichst filigran bleiben“
Authors: Steeger Oliver
Published: July 2024

Der 2023 eröffnete Skywalk am Königsstuhl auf Rügen gilt als technische Meisterleitung. Ein Ingenieurteam hat ihn behutsam in ein empfindliches Naturschutzgebiet eingefügt und sicher im Kreidefelsen verankert. Im Interview erläutert Projektkoordinator Carsten Schwarzlose (BIG Städtebau GmbH) die Herausforderungen dieses ungewöhnlichen Projekts, die Vorteile enger Zusammenarbeit der an Planung und Bau beteiligten Partner – und weshalb er die Begriffe „touristisches Highlight“ und „Skywalk“ vermeiden möchte.
Projektmanagement-Softwaresysteme – KI – Groupware: Eine kybernetische Betrachtung
Authors: Krull Dennis
Published: July 2024

Projektmanagement-Softwaresysteme (PMSS) entfalten ihren Nutzen nur bei der Bewältigung bestimmter Aufgaben in der Projektwirtschaft. Darüber hinaus sind bestimmte technologische Voraussetzungen von den PMSS zu erfüllen, damit ein Multiprojektmanagement überhaupt funktionieren kann. Ein Regelkreismodell bzw. die Kybernetik zum Projektmanagement wird im Artikel bemüht, um einen klaren Blick zu behalten und die Funktionsweisen von PMSS an der richtigen Stelle zu verorten. Der Artikel greift auch die im Kontext von PMSS häufig fallenden Begriffe KI und Groupware auf und setzt sie in Beziehung zu PMSS, wobei ebenfalls das Regelkreismodell herangezogen wird.
Durch die Nutzung von „Bordmitteln“ eine Zeitersparnis in den Administralitäten erreichen
Authors: Schwab Bernhard Konrad
Published: July 2024

Automatisierungsmöglichkeiten gibt es nicht erst seit ein paar Jahren, sondern in jedem digitalen Arbeitsplatz sind diese Funktionalitäten seit Jahrzehnten vorhanden und werden aus Unwissenheit nicht genutzt.
So kann man beispielsweise in Outlook mit Quick Steps, Schnellbausteinen oder kleinen Makros Prozesse automatisieren und damit die manuelle Arbeitszeit reduzieren. Das verschenkte Potenzial der zeitlichen Einsparung ist dabei immens und schafft Raum, um sich um die Arbeit mit den Stakeholdern im Projektmanagement zu kümmern.
Erfahrung mit KI in einem Forschungsprojekt: Anwendungen, Grenzen und Perspektiven
Authors: Bacharach Guido
Published: July 2024

Dieser Artikel beschreibt die Anwendung von ChatGPT 3.5 in einem laufenden Forschungsprojekt zur Theory-of-Constraints (TOC) und deren Potenzial in Regierungs- und öffentlichen Institutionen. Er hebt die Nützlichkeit von ChatGPT hervor, identifiziert jedoch auch seine Grenzen. Der Artikel diskutiert auch die Verwendung speziell trainierter Experten-GPTs als Lösungsansatz. Besonderes Augenmerk liegt auf der Forderung nach Transparenz und quelloffener Gestaltung solcher Systeme, um digitale Souveränität und freie Forschung zu unterstützen. Die Erfahrungen zeigen, dass KI in der Forschung die Qualität sichern und neue Ideen fördern kann, aber derzeit keinen Mehrwert bei der Entwicklung innovativer Ansätze bietet.
Projektmanagement verstehen
Authors: Scheurer Steffen
Published: July 2024

Projektmanagement verstehen. Praxisnahe Tipps für die Arbeit in Projekten von Michaela Flick; Mathias Flick, 1. Auflage, 2023, ISBN: 978-3-648-16794-6

Fauch will fliegen. Projektmanagement verstehen für Kinder von Michaela Flick; Mathias Flick, 1. Auflage, 2023; ISBN: 979-8-86 386 990 – 2
Assessment of physical development and lifestyle in junior medical students
Authors: Shestera AA , Trankovskaya LV , Kaerova EV , Nagirnaya LN
Published: July 2024

Preserving the health of student youth is one of the state's priority tasks. The relevance of the issue results from the students’ health deterioration. The study was aimed to assess physical development in students of the medical higher educational instutution considering their lifestyle. We performed comparative assessment of physical development in 940 first-year students of the Pacific State Medical University. The source of information was primary medical documentation (form No. 025-CZ/u). Polling was used to assess the students’ lifestyle. The CHAID algorithm for decision trees was used in 2021 to estimate the effects of lifestyle on the indicators of physical development in students. It was found that the students’ body length decreased over 20 years. The chest circumference of students increased (p = 0.001). The right and left hand grip strength decreased (p < 0.001). A significant increase in the vital capacity was reported in males only (p = 0.007). We revealed the increase in the number of students with disharmonious physical development (by 9.4% in males and 15.3% in females) due to overweight, along with reduction of body weight by 12.5% in males. The risk factors of disharmonious physical development with the highest impact factor in males were as follows: the lack of vegetables in the diet and the use of social media and computer games during free time. In females, the risk factors were as follows: daily consumption of cereals, pasta, and bread and living apart from parents. The findings make it possible to estimate the risk factors of disharmonious physical development and determine the priority directions for the development of preventive measures for preservation of students’ health.
Interplay of the indicators of physical development and psychological status in the young adult medical students
Authors: Chevzhik YuV , Milushkina OYu , Shemyakov SE , Skoblina NA , Samokhina AO
Published: July 2024

Currently, there is increasing number of overweight people all over the world. The increase in the incidence of depression among the population, especially among adolescents and young adults, has been reported. The study was aimed to determine the relationship between excess body weight and severity of depression in the young adult students taught at the initial courses in the medical university. The study involved 230 junior medical students (163 females and 67 males) having no chronic disorders. Body mass index (BMI) was determined in the subjects. The depression severity was defined using the Beck Depression Inventory. The analysis showed that the average BMI was 3.0 ± 3.9 AU in males and 22.0 ± 4.3 AU in females. The share of underweight male subjects was 7.5%, while the share of underweight females was 10.5%; 28.3% of males and 13.5% of female subjects had excess body weight and obesity of varying severity. No signs of depression were found in 66.0% of males and 61.0% of females. We revealed no significant correlation between BMI and depression.
Organizational model for prevention of smoking among young adults in voronezh: regional experience
Authors: Ulianov IA , Nehaenko NE , Ostroushko NI , Meremyanin LV , Ulianova AV , Petrova TN , Sharapova YuA
Published: July 2024

The issues of damage to health related to the spread of nicotine product consumption are global. At the initiative of the Department of Healthcare Management, Burdenko Voronezh State Medical University, the organizational model of medical measures to overcome nicotine dependence involving formation of the smoking cessation groups among young adults, management and enlightment of the participants on the issues related to damage from nicotine dependence and free provision of the medicines facilitating smoking cessation was implemented. The study was aimed to assess the organizational model effectiveness based on the nicotine cessation rates of young adults. The model participants (42 individuals) were divided into three groups and provided free medicines: tablets containing cytisine in group 1, nicotine sprays in group 2, nicotine patches in group 3. The experiment was conducted for 30 days, during which three follow-up questionnaire surveys were performed. In the experiment, 31.7% of subjects stopped smoking completely, while the total positive effect bringing together those, who ceased smoking, and those, who reduced smoking, was 66.7%. Furthermore, the tablets containing cytisine turned out to be the most effective option. Thus, the study results obtained within the framework of the proposed organizational model can be considered useful in terms of further practical use. It can be recommended to include the model in the target program involving provision of medicines for treatment of nicotine dependence at the expense of the regional budget and attracted funds of enterprises and organizations.
Design of Microwave Power Amplifier at 2300 MHz Using S-parameters for Satellite Applications
Authors:   Cihan University-Erbil, Muhammad Zeki Mahmood Firas , Jawad Ahmed Husham ,   Cihan University-Erbil
Published: July 2024

This paper proposes to design microwave power amplifier with center frequency 2300 MHz using S-parameters. The paper takes all the representation of design by theoretical calculations of main parameters to gives right way for design before to use the computer aided design-CAD to know the right calculations to have an accurate result and how to select the efficient transistor with specifications to avoid the noise. The design has been using the low noise transistor NE02135 made by NEC company with 10 v of collector to emitter voltage and lower collector current of 20 mA as a bias point and its S-parameters. The conditions of unconditional Stability realized from the value of stability factor greater than 1 is 1.07 and Delta smaller than 1 is 0.102 from calculations and the maximum available gain is 11.2 dB that’s give the value of figure of merit efficient to indicate the correct design.
Managing Ethnic Diversity & its Role in Good Governance (Malaysia as an Example)
Authors:   Agriculture Directorate of Salahdin- Iraq, Beder Zaid
Published: July 2024

يعد التنوع القومي من المواضيع المهمة والحساسة التي ينبغي على الدول ذات التنوع الاهتمام بها ومحاولة صياغة استراتيجية خاصة للتعامل مع هذه القضية بما يضمن تحقيق الاستقرار والانسجام بين مكونات المجتمع، وهذا ما يتيح للدولة العمل على تحقيق التنمية الاقتصادية، اذ شكلت قضية التنوع نقطة فارقة في تاريخ وحاضر الدول ذات التنوع، فبعضها نجح في جعل هذا التنوع من عوامل قوة الدولة وتقدمها من خلال السياسة الحكيمة التي وضعت من اجل ادارة هذا التنوع، واستطاعت ان تضع نفسها في مصاف الدول المتقدمة، ودول اخرى عانت ولا تزال تعاني من هذا التنوع بفعل السياسات والإجراءات التي اتخذتها في هذا الجانب، والتي حاولت من خلالها تهميش الاثنيات الاخرى او دمجها ضمن الهوية الثقافية للاغلبية، وهذا ما ساهم في حدوث نزاعات وحروب اهلية، وخلق مجتمع مفكك يغيب عنه الانسجام والاندماج بين مكوناته، وماليزيا من بين الدول التي نجحت في ادارة هذا التنوع من خلال تطبيق مبادئ الحكومة الرشيدة لاسيما في موضوع ضمان مشاركة الجميع وتحقيق الانسجام بين المكونات بما يضمن تحقيق التنمية.
SCIENCE LITERACY SKILLS WITH THE UTILIZATION OF STUDENT WORKSHEET LEARNING TOOL BASED ON PROJECT-BASED LEARNING
Authors: Tanjung Yolla Trisrianca
Published: July 2024

This study aims to determine the effect of project-based learning (PJBL) student worksheets against students science literacy abilities on the use of waste and natural materials in class X SMA Swasta Nusantara Lubuk Pakam in the 2023/2024 school year. The research method used is quantitative, in the form of a true experimental design. The research design used was a pretest-posttest control group design. The population in this study was all class X at SMA Swasta Nusantara Lubuk Pakam, with a total of 6 classes. The sampling technique used in this research is class random sampling. The research sample consisted of two classes: X-1, which was the experimental group using PJBL-based LKPD, and X-2, which was the control group using conventional LKPD. This research instrument is a description-based scientific literacy ability test. The results of the calculation of the hypothesis test using the independent sample t-test obtained a sig. (2-tailed) value < 0.05, indicating that the PJBL-based LKPD has a significant effect on students' scientific literacy abilities in the material on the use of waste and natural materials.
PARAMETER HIDROGRAF SATUAN SINTETIK METODE SNYDER DAN NAKAYUSU
Authors: Barid Burhan , Harsanto Puji , Olga Aldi Yuhono , Wisnulingga Bayu Krisna
Published: July 2024

Banjir merupakan bencana alam yang sering terjadi di Indonesia karena air yang masuk di sungai telah melebihi kapasitas daya tampung sungai. Saat melakukan perencanaan bangunan air perlu dilakukan perkiraan hidrograf banjir pada suatu sungai. Pengalihragaman data hujan ataupun data tinggi muka air merupakan hal yang lazim untuk mendapatkan debit banjir rancangan. Hidrograf Satuan Sintetik merupakan salah satu metode untuk menganalisis debit banjir rancangan. Pada penelitian ini menguji parameter yang sesuai pada Hidrograf Satuan Sintetik Metode Snyder dan Nakayasu untuk dibandingkan dengan data dari AWLR Gemawang pada SubDAS Code Hulu. Tujuan dari perbandingan ini untuk mengetahui metode yang cocok untuk digunakan pada AWLR Gemawang di SubDAS Code hulu. Jika nilai indek kesesuaian (R2) meperoleh nilai sebesar satu atau mendekati satu dan sudut regresi linear pada grafik memperoleh nilai sebesar 45˚ atau mendekati maka dapat dikatakan HSS Metode Snyder maupun Nakayasu berbubungan dengan data dari AWLR Gemawang. Sudut regresi linear sama dengan satu dikarenakan sumbu x dan sumbu y memiliki nilai yg sama. Dalam penelitian ini Metode Snyder maupun Nakayasu meperoleh sudut sebesar 31˚
KARAKTERISTIK LALU LINTASJALAN KI HAJAR DEWANTARA KOTA METRO
Authors: Sriharyani Leni , Hadijah Ida
Published: July 2024

Ruas Jalan Ki Hajar Dewantara Kota Metro merupakan kawasan pusat pendidikan . Jalan ini mempunyai tipe 2/2 UD yakni jalan dengan 2 lajur 2 arah tanpa median. Pada ruas jalan ini volume lalu lintas pada jam puncak pagi dan sore sangat tinggi. Hal ini disebabkan oleh aktivitas sekolah mulai dari taman kanak-kanak hingga  perguruan tingggi. Kecepatan kendaraan menjadi menurun saat jam puncak, sehingga ruas jalan ini mengalami kepadatan lalu lintas.     Metode yang digunakan pada penelitian adalah ini adalah metode pengumpulan data dengan pengamatan dan observasi langsung di lapangan dengan melakukan  survei traffic counting, survei hambatan samping, survei kecepatan kendaraan dan survei geometrik jalan.Berdasarkan Hasil analisis dan perhitungan didapatkan: Nilai korelasi antara kepadatan dan  arus adalah 0,988 termasuk dalam kategori sangat kuat. Nilai koefisien determinasi 0,974 atau 97,4 %. Nilai signifikansi < alpha = 0,05. Dengan model regresi Y = 185,6158 + 13,6325x. Nilai korelasi antara kepadatan dan kecepatan adalah 0,845 termasuk dalam kategori sangat kuat. Nilai koefisien determinasi 0,686 atau 68,6 %. Nilai signifikansi < alpha = 0,05. Dengan model regresi Y = 22,2076 - 0,0915 x. Nilai korelasi antara arus dan kecepatan adalah 0,772 termasuk dalam kategori kuat. Nilai koefisien determinasi 0,555 atau 55,5 %. Nilai signifikansi < alpha = 0,05. Dengan model regresi Y = 22,9507 - 0,006 x. Pada kondisi eksisting pukul 07.00 – 08.00 arus lalu lintas 1170 smp/jam, kapasitas 2499,336 smp/jam, derajat kejenuhan 0,468, dengan tingkat pelayanan C. Kinerja ruas jalan semakin memburuk seiring dengan bertambahnya kendaraan yang melintas saat jam sibuk. Tetapi saat jam tidak sibuk derajat kejenuhannya 0,191 dengan tingkat pelayanan A
casas del posterremoto de San Juan
Authors: Cremaschi Veronica
Published: July 2024

El 15 de enero de 1944 un sismo destruyó la ciudad de San Juan y alrededores, lo que condujo a su reconstrucción. Para ello se ensayaron diferentes tipos de viviendas cuya materialidad estuvo condicionada por la necesidad de dar albergue en un corto tiempo a las familias que habían perdido sus casas. Este artículo reconstruye los diferentes modelos empleados a partir de un exhaustivo trabajo de rastreo de fuentes que se encuentran disponibles en archivos provinciales y nacionales. Esto es así porque en el proceso de la reconstrucción intervinieron entidades de distintas jurisdicciones. Como resultado observamos que se recurrió a tipologías y materiales diversos. Esto diferencia el caso sanjuanino de otras provincias en que la vivienda estatal se concretó en el “chalecito” y, en menor medida, la vivienda en bloque, ambos de mampostería de ladrillo. A pesar del carácter experimental del caso sanjuanino, el Censo de 1960, nos indica que los materiales preponderantes continuaros siendo los tradicionales no antisísmicos.
Yes is more
Authors: Folga Bekavac Alejandro Roman
Published: July 2024

Yes is More: un arquicómic sobre la evolución arquitectónica es una monografía en formato novela  gráfica que fue publicada en 2009 por el estudio Bjarke Ingels Group (BIG). En este artículo se analiza la estrategia discursiva empleada por BIG en esa publicación. El análisis se fundamenta en el concepto aristotélico de ethos autoral. Para ello se estudian las relaciones que Yes is more tiene con el lenguaje y la retórica de los cómics, a través de la aplicación de algunas de sus convenciones y recursos. A partir del estudio de los tres primeros capítulos de la obra se establecen paralelismos y comparaciones con estrategias narrativas usadas en otros cómics y en reconocidas obras de divulgación. Como conclusión, se establece que la gradual introducción de recursos propios del cómic constituye un elaborado discurso proyectual que funciona como ethos autoral de BIG.
Performance assessment of particle board from organic wastes using polymer matrix
Authors: Abutu Joseph , Tsoji Tsotsi Rikwen , Stephen Areo , Araye Aliyuda Dedan , Lawal Sunday Albert , Rimamtaatang Ayuba Kitaka
Published: July 2024

In this work, sugarcane bagasse and rice husk were used as filler material for the production of agro-based particle board along with low density polyethylene and coconut shell, with the aim of investigating the effects of varying compositions of constituents on the performance of the developed composite using constant process parameters of moulding pressure (10 MPa), moulding temperature (140 ℃), curing time (10 min) and heat treatment time (1 h). Experimental design was conducted using box-Behnken design (L1533) while multi-response optimization was carried out using grey relational analysis (GRA). The experimental results revealed that changes in percentage composition affects the performance of the composite and the multi-response optimal performance of the developed bagasse-based particle board (BPB) and rice husk-based particle board (RPB) can be achieved with bagasse or rice husk (30 wt%), coconut shell (30 wt%) and low density polyethylene (40 wt%), the results of analysis of variance showed that performance of the two particle board is most influenced by the presence of low density polyethylene (LDPE). Finally, compare to rice husk, bagasse can effectively serve as a preferred substitute for wood in the production of Also particle board.
Carbon sequestration analysis of the university campuses in the Bangkok Metropolitan Region
Authors: Anantsuksomsri Sutee , Positlimpakul Korrakot , Chatakul Paron , Janpathompong Dalin , Chen Gang , Tontisirin Nij
Published: July 2024

Due to the gradual growth of urbanization in cities, urban forests can play an essential role in sequestering atmospheric carbon, trapping pollution, and providing recreational spaces and ecosystem services. However, in many developing countries, the areas of urban forests have sharply been declining due to the lack of conservation incentives. While many green city spaces have been on the decline in Thailand, most university campuses are primarily covered by trees and have been serving as urban forests. In this study, the carbon sequestration of the university campuses in the Bangkok Metropolitan Region was analyzed using geoinformatics technology, Sentinal-2 satellite data, and aerial drone photos. Seventeen campuses were selected as study areas, and the dendrometric parameters in the tree databases of two areas at Chulalongkorn University and Thammasat University were used for validation. The results showed that the weight average carbon stock density of the selected university campuses is 46.77 tons per hectare and that the total carbon stock and sequestration of the study area are 22,546.97 tons and 1402.78 tons per year, respectively. Many universities in Thailand have joined the Green University Initiative (UI) and UI GreenMetric ranking and have implemented several campus improvements while focusing on environmental concerns. Overall, the used methods in this study can be useful for university leaders and policymakers to obtain empirical evidence for developing carbon storage solutions and campus development strategies to realize green universities and urban sustainability.
O reconhecimento de pessoas e a seletividade do sistema penal
Authors: Detoni João Henrique Ribeiro , Puhl Eduardo
Published: July 2024

Considerando o artigo 226 do Código de Processo Penal, o presente artigo questiona a credibilidade do reconhecimento de pessoas efetuado através de fotografias no Brasil, realiza-se uma análise deste procedimento tendo em vista diversos casos onde foram observadas distorções ou influencias equivocadas, seja pela ilusão das falsas memórias ou pela seletividade punitiva implantada em meio a sociedade. Além disso, busca mostrar possíveis caminhos que possam melhorar este importante método jurisdicional, como a decisão proferida pelo Ministro Rogerio Luiz Schietti do STJ, a qual abriu precedente para mudanças do tema. Procedimentos que até então não eram seguidos passaram a ter status de indispensáveis. Objetiva-se demonstrar a relevância desta temática e os riscos de concretização de injustiças, o que podem vir a gerar graves consequências, como o encarceramento de inocentes.
A mediação na resolução de conflitos no direito do consumidor no atual ordenamento jurídico brasileiro
Authors: Rocha Elisabete da , Slomp Neto Frederico
Published: July 2024

A mediação na resolução de conflitos no direito do consumidor busca realizar com rapidez e sem ônus, a oportunidade de uma solução que venha a desafogar o Poder Judiciário, observando a situação problema dentro das relações de consumo existentes entre o consumidor e o fornecedor, com a intenção de proporcionar satisfação para ambas as partes. A mediação busca a resolução satisfatória para as partes envolvidas procurando compreender qual caminho melhor percorrer para uma resolução equilibrada para ambos. Focando em permitir uma maior compreensão do estudo proposto, o objetivo geral foi apresentar a mediação como forma de resolução de conflitos no Direito do Consumidor. Como objetivos específicos tem-se as seguintes propostas: a) dissertar sobre os principais conceitos do direito a proteção do consumidor no Brasil e suas relações constitucionais; b) apresentar os aspectos práticos da defesa ou proteção do consumidor; c) retratar a mediação como forma de promover a resolução de conflitos no direito do consumidor. Os procedimentos metodológicos foram compreendidos pela pesquisa bibliográfica e o método dedutivo. Conclui-se que a mediação diante da resolução de conflitos no Direito do Consumidor, acaba se caracterizando como instrumento que vem a auxiliar o consumidor e o fornecedor no estabelecimento de propostas de resolução onde exista um desequilíbrio para ambas as partes.
Os desafios da nova modalidade de licitações na Lei n. 14.133/2021 e suas características jurídicas
Authors: Schimdt Eliana Marcia Aparecida Paulista , Slomp Neto Frederico
Published: July 2024

A Nova Lei de Licitações buscou realizar avanços legais na Administração Pública, vindo a eliminar os retrocessos relacionados à legislação revogada. Com o surgimento da Nova Lei nº 14.133 de 1º de abril de 2021, a mesma buscou como objetivo realizar a regulamentação dos preceitos indicados no inciso XXVII do art. 22 da Constituição Federal de 1988 (CF), que busca indicar as normais gerais de licitação e contratação em todas as modalidades na Administração Pública, obedecendo ainda, o art. 37 da CF. nesse sentido, a questão problema trazida para o campo da discussão, foi compreendida da seguinte forma: “Logo, diante da dinamicidade existente na realização de licitações na Administração Pública, como a nova Lei de Licitações e Contratos Administrativos, vem se comportando diante dos novos contratos realizados”? O objetivo geral do estudo foi demonstrar os desafios da nova Lei de Licitações e Contratos Administrativos, Lei nº 14.133/2021 e suas características jurídicas na atual conjuntura da Administração Pública brasileira. Os procedimentos metodológicos foram constituídos pela pesquisa bibliográfica. Os resultados encontrados buscaram demonstrar como a Nova Lei de Licitações buscou dar maior eficácia e efetividade as licitações públicas. Conclui-se que a Lei nº 14.133/2021 veio a instituir uma ampliação dos seus objetivos licitatórios, bem como, garantir tratamento isonômico, justa competição, evitar superfaturamento nos contratos, incentivando a inovação.
Study of Parameters of the Mixture and Heat Generation of the DD15 Diesel Engine of the Sandvik LH514 Loader in the Process of Using Alternative Fuels Based on RME
Authors: Bembenek Michał , Melnyk Vasyl , Mo Yurii
Published: July 2024

Today, there is a growing shortage of commercial motor fuels in the world. This is due to the tendency to regulate the extraction of hydrocarbons, which are the main raw materials for their production; and, therefore, to reduce the import of oil, alternative types of fuel for diesel engines based on oils and animal fats are becoming widespread today. In this regard, intensive work is underway to convert internal combustion engines to biofuel-based ones both in countries with limited fuel and energy resources and in highly developed countries that have the opportunity to purchase liquid energy carriers. Biodiesel fuel (biodiesel, PME, RME, FAME, EMAG, etc.) is an environmentally friendly type of biofuel obtained from vegetable and animal fats and used to replace petroleum diesel fuel. According to the results of modelling, in the process of using RME B100 biodiesel fuel, we found a reduction in nitrogen dioxide emissions by 21.5% and a reduction in soot emissions by 34.5%. This will positively affect the environmental performance of the Sandvik LH514 loader, which is especially relevant in closed environments such as mines. So, according to the results of studies of the operation of the DD15 engine of the Sandvik LH514 loader on commercial and RME B100 biodiesel fuel, it was established that the use of biodiesel fuel leads to a deterioration of the mixture, due to which heat generation is reduced and, as a result, fuel consumption increases and engine power decreases, but the aspect of environmental indicators constitutes the significant improvement demonstrated by the present work.
Assessment of Parameters of the Vibration-Based Energy Harvesting System Located in the Micro-Power Generator
Authors: Koszewnik Andrzej
Published: July 2024

This article presents the optimisation process of some key parameters such as the size of the macro-fibre composite (MFC) and the optimal impedance load matching the piezoelectric harvester located in the prototype of the micro-power generator to enhance the vibration-based energy harvesting effect. For this, the distributed parameter model of this structure, including MFCs of the 8514 P2, 5628 P2 and 8528 P2 types, with a homogenous material in the piezoelectric fibre layer was determined. The numerical analysis of the FEM model of the flexure strip with piezo-composite indicated that the highest amplitude of voltage >7 V is generated by the proposed device with the piezo of the 8528 P2 type, while the lowest amplitude (close to 1.1 V) was noted for the piezo of the 8514 P2 type. Experiments were carried out on the laboratory stand to verify the obtained results. In addition, it was shown that the power output of the real EH system with the piezo of the MFC 8528 type, connecting with the matched resistive load (R = 120 kΩ), led to a significant increase in the value of the generating voltage up to 500 mW versus EH system with the piezo of 8514 P2 and 5628 P2 types. Finally, the effectiveness of this system was found to be close to 33% for the EH system with the piezo of the 8528 P2 type.
Modified Semi-Analytical Approach for Duffing Equation
Authors: Amara Um E , Rehman Shahida , Abbas Mujahid , Rehman Jamshaid Ul
Published: July 2024

This research endeavour-investigates the enhanced adaptation of the Laplace-based variational iteration method (VIM) tailored specifically for tackling the Duffing Equation. This is accomplished by incorporating the Lagrange multiplier as a strategic tool to effectively address the inherent natural frequency within the Duffing Equation. Using a meticulous comparative analysis, here are juxtapose the analytical outcomes generated by the modified VIM approach with the numerical solution obtained through the application of the renowned Runge-Kutta Fehlberg method (RKF45), implemented by using the powerful mathematical software, MAPLE. Furthermore, by exploring the profound influence of diverse initial conditions on the resulting solution, a diverse array of distinct graphical representations is presented.
Experimental and Analytical Approaches on Air Spring Absorbers Made of LDPE Polymer
Authors: Obst Maciej , Kurpisz Dariusz , Jakubowski Michał
Published: July 2024

Damping and energy-consuming elements can be found in many technical applications. This means these component types can prevent fractures or injuries in the case of products or people, respectively. In the last time, many modern applications and inventions associated with the reduction of the effects of an impact are observed especially in the mode of transportation safety area. The significant development of the automotive industry, increasing popularity of motorbikes, electric bikes and scooters, sports field, etc., require new solutions for personal safety protection. Human head and neck protection, and other body parts protection are typical groups of solutions from biomechanics and mechanical engineering. Authors have investigated LDPE-made pneumatic absorbers under axial impact force. Based on the experimental approach and analytical model, mechanical characteristics are presented. Impact force value, deceleration and damping for different loading conditions are shown. Because safety systems’ impact protective features can be matched to impact conditions, results indicated that absorber damping could possibly be a good solution for them, shaping the impact characteristics according to safety requirements.
Development of a Biomechanical Human Model for Safety Analysis of the Operators of Self-Propelled Mining Machines
Authors: Działak Paulina , Karliński Jacek , Maślak Paweł
Published: July 2024

In the paper, the authors presented an elaboration of the biomechanical model of a human in a sitting position for the dynamic tests related to the impact loads acting on operators of self-propelled mining machines. Here, the human body was replaced with a one-dimensional multi-mass model (in the form of concentrated masses connected with elastic and damping elements). The models of this type are currently used to study ergonomics in vehicles. However, their use is limited because they are adapted to much lower dynamic loads than those acting on the operator in accident situations in mines. Many models of this type, in which the stiffness and damping characteristics of the elements are constant, have been described in the literature. Due to the specificity of the analysed loads acting on the operator, the literature studies were mainly focused on models for vertical forces analysis. By developing non-linear stiffness characteristics, in the currently used car seat ergonomics linear biomechanical models, it was possible to use simple multi-mass models with several degrees of freedom to analyse the effects of dynamic excitation characterised by large displacements. The validation of the developed characteristics was performed using a full-size dummy in a sitting position positioned in the cabin, on the operator’s seat.