bluuebunny/crossref_metadata_2025 huggingface dataset:
Environmental Benefits of Turbo Roundabout: A Case Study of Noise and Air Pollution Modelling in the Village of Košťany Nad Turcom, Slovakia
Authors: Jandacka Dusan , Cingel Andrej , Brna Matej , Cingel Michal
Published: December 2024

Road transport represents a significant source of environmental pollution by air pollutants and noise. An important task is therefore to find ways to reduce these negative impacts. One option is also to change the conditions of the road transport infrastructure, for example by re-arranging the spatial layout of intersections and thus changing the driving mode of vehicles. The task of this study is to analyze the impact of the potential reconstruction of the intersection on the noise and air pollution load in its surroundings using modelling with the CadnaA program. This is a proposal to change the intersection (PK) to a turbo roundabout (TOK), with a specific structural layout and driving mode. As part of the study, a traffic survey was carried out to obtain detailed information about the volume and directions of road traffic at the intersection. The traffic volume at the intersection is specific to a high proportion of trucks, which also significantly affected the (un)change in the environmental load by noise and emissions. From the modeled variants, a reduction in noise pollution was observed, but no significant positive change in air pollution was demonstrated at TOK. At the observation point MP1, an increase in noise by 2 dB was recorded, and at MP4 a decrease of 3.6 dB. PM10 concentrations did not decrease at any observation point and increased most at MP1 by 7 µg/m3 according to the model.
Discovering Sources and Approaches in Financing Hackathons
Authors: Ryś Maciej
Published: December 2024

This study explores the diverse sources and approaches to financing hackathons, aiming to compare financing models for hackathons, emphasizing the influence of event type on various strategies. Employing an ethnographic approach, the research identifies three primary financing strategies-challenge-oriented, community-oriented, and profit-oriented and six key sources, including sponsorships, community contributions, self-funding, grants, investments, and registration fees. The findings reveal that aligning financing with hackathon objectives is essential for the overall performance of the event. Challenge-oriented hackathons require dedicated budgets, community-oriented ones rely on local support, and profit-oriented events must balance financial goals with inclusivity. Sponsorships and partnerships emerge as the most versatile funding method. The study underscores the importance of combining multiple financing sources to ensure resilience and stability. It contributes to the academic understanding of hackathon financing and offers practical insights for organizers, sponsors, participants, and policymakers, aiming to enhance the effectiveness and impact of hackathons in fostering innovation and collaboration.
Intestinal Parasitic Infections of Stray Dogs on the Caribbean Island of St. Maarten/St. Martin
Authors: O’Sullivan Joanna B. , Wright Ruth , Halán Miloš
Published: December 2024

The island of St. Maarten/St. Martin has a big stray dog population, with many roaming and non-sterilised owned dogs. Faecal samples from 111 dogs, including 70 puppies and 41 adult dogs, underwent coprological examination including flotation. Collection occurred from July through September of 2022. The infection rate of 92.8 % was higher than that reported in the previous Caribbean studies. The species found were Cystoisospora spp., Giardia intestinalis, species from the family Ancylostomatidae, Toxocara canis, Trichuris vulpis, and Dipylidium caninum. Ancylostomatidae family had the highest prevalence at 75.7 %. The high T. canis (42.3 %) and D. caninum (13.5 %) rates were attributed to the young age of the sample population in this study. Conversely, the low T. vulpis (10 %) rate was attributed to its long prepatency period, as eggs only shed from older puppies and dogs. Cystoisospora spp. were the most prevalent protozoan parasite at 10.8 %. The total coinfection rate was 45.9 %, with the most being 5 different species. It was determined that the parasite burden on the island is high and is likely to benefit from animal welfare interventions.
Successful Treatment of Chronic Inflammatory Enteropathy in 2-Year-Old Yorkshire Terier. Case Report
Authors: Kunay Lukáš , Kožár Martin , Fialkovičová Mária , Horňák Slavomír , Kacková Gabriela , Figurová Mária
Published: December 2024

Chronic enteropathy in dogs represents a significant clinical challenge that often requires innovative therapeutic strategies for effective management. This case study investigated the simultaneous use of budesonide, cannabidiol (CBD) oil and probiotics. Budesonide represents a corticoid therapy primarily used in human medicine for autoimmune diseases. Cannabidiol oil is one of the cannabinoids that does not affect sensory perception and is known for its anti-inflammatory properties. Probiotics help maintain gut microbiota balance as a treatment modality for chronic enteropathy in dogs. This report details the clinical symptoms, diagnosis, and treatment plan, highlighting the positive response seen in the patient. The findings suggested that the combination of budesonide, CBD oil, and probiotics may be a beneficial strategy for the treatment of chronic enteropathy in dogs.
Rethinking the Paradigm of Economic Development: A Critical Examination of its Intersection with Sustainable Development Goal 4 – Quality Education
Authors: Pamella Shabalala Nonkanyiso
Published: December 2024

Quality education is an effective instrument for promoting economic development. It equips individuals with the skills and knowledge necessary to secure improved employment, achieve higher earnings and contribute to the economy. This study critically analyses the relationship between economic development and Sustainable Development Goal 4 (SDG 4) – Quality Education within the context of education for sustainable development. It aims to explore the dearth of traditional economic development paradigms in promoting holistic human well-being and propose alternative approaches that prioritise high-quality education to achieve sustainable development. This study draws on the sustainable development concept articulated and expanded by various scholars in the literature that was reviewed. It further explores the principles of education for sustainable development (ESD) as outlined by UNESCO and analyses various economic frameworks such as the Green Economy, Well-being Economics and Doughnut Economics. As a conceptual study, the researcher reviewed existing literature on economic development, sustainable development and education. The study synthesises findings from various studies to critically analyse the interplay between economic growth and quality education. Furthermore, the findings emphasise the potential of ESD in promoting sustainable development. The analysis reveals that traditional economic development paradigms, which focus heavily on GDP growth, often neglect social equity and environmental sustainability, thereby resulting in a failure to advance holistic human well-being. In contrast, integrating quality education as a core component of development strategies may significantly contribute to the progress towards sustainable development. Education empowers individuals, by equipping the with knowledge and skills, encourages critical thinking and promotes environmental stewardship. As a result, education helps to align economic operations with broader social and environmental objectives. This study emphasises the need for policymakers to embrace holistic and inclusive approaches for economic development that give priority to quality education. Reforms in educational systems are necessary to prioritise critical thinking and sustainability. Additionally, investments should be made in teacher training and interdisciplinary learning. The findings support the need to transition from growth-centric development models that prioritise economic growth to models that consider and balance economic, social and environmental objectives, ensuring a future that is both sustainable and equitable.
ICNP® reference terminology for selected diagnoses and interventions in midwifery care on the example of a postpartum woman after hemorrhage with impending preeclampsia
Authors: Nowicka Aleksandra Anna , Czerwińska-Osipiak Agnieszka
Published: December 2024

Aim. The aim is to indicate the validity of implementing the ICNP® terminology in obstetric care on the example of a patient after postpartum hemorrhage with suspected preeclampsia. Based on the catalog of concepts, the entity’s problems and the midwife’s interventions were identified in the proposed individualized care plan.

Material and methods. The research method in this work is an individual case study. The basis for the presented care plan was the use of techniques: interview, observation, analysis of medical documentation and measurements relevant for therapeutic purposes. This manuscript was developed based on the CARE protocol for case reports.

Results. The presented care model allowed for the implementation of individualized interventions, resulting in the improved quality of life and a better prognosis in the subject’s recovery process. The role of a midwife in the care of a patient with the previously mentioned diseases indicates the indispensable affiliation to an interdisciplinary team, at the same time establishing an independent and autonomous profession.

Conclusions. The use of the ICNP® classification promotes the development of nursing as a field of science. The indicated method allows for accurate interpretation of problems in the obstetric care, thus unifying the communication system based on databases and currently functioning catalogs of concepts.
Cavitation as a stage of necrectomy in the treatment of postpartum endometritis
Authors: Khavansky A. Yu. , Arakelyan B. V. , Linde V. A. , Levkovich M. A. , Gaidarova A. A. , Vasiliev Yu. V.
Published: December 2024

Introduction. Postpartum endometritis is an inflammation of the endometrium with possible involvement of the myometrium that occurred after childbirth or cesarean section. The main components of its treatment are antibiotic therapy and removal of necrotic contents of the postpartum uterine cavity (necrectomy). Ultrasound cavitation with fluid aspiration was used for necrectomy.

The objective of this study was to evaluate the effectiveness of necrectomy using ultrasonic cavitation with aspiration of various fluids in the treatment of postpartum endometritis. furacilin solution.

Materials and methods. 45 puerperants with postpartum endometritis were examined and treated. The patients were divided into 3 groups: in the 1st group, treatment was performed without necrectomy; in the 2nd group, cavitation of the uterine cavity using isotonic sodium chloride solution was added to the treatment; in the 3rd group, cavitation of the uterine cavity with furacilin solution.

Results. On the 7th day of treatment, all patients noted an improvement in well-being, normalization of temperature parameters, and reduction of uterine soreness. At the same time, the most pronounced uterine involution was observed in patients of the 3rd group. For example, in patients of group 1, the length of the uterus decreased by 16.9 %, and in patients of group 3 – by 29.5 %. The dynamics of the content of tumor necrosis factor α and interleukin 10 in blood serum was also most pronounced in patients of group 3. Thus, in patients of group 1, the content of IL10 decreased by 84.1 %, and in patients of group 3 – by 90.9 %. The bed-day in this group was 9.3 days, and in the 3rd group was 7.0 days.

Conclusion. The inclusion of ultrasound cavitation of the uterine cavity with furacilin solution in the treatment of patients with postpartum endometritis increases the effectiveness of treatment of this disease.
Awareness of vape smoking risk factors among Al-Baha University students, Saudi Arabia
Authors: Alkully Turki , Agwa Ramy , Saad Warda , Alghamdi Mohammed , Ghamdi Abdullah , Alsubaie Abdullah , Alghamdi Saad , Asubaie Hazzaa
Published: December 2024

Background: The prevalence of vape smoking among young adults, including university students, has risen globally, raising concerns about potential health risks. This study aimed to determine vape smoking awareness among the students of Al-Baha University in Saudi Arabia.
Methods: This was a cross-sectional study. Data were collected through a structured electronic survey that was distributed to students, with 405 participants included in the final analysis. The inclusion criteria required that students be aged 18 to 25 and enrolled at Al-Baha University; any students who were outside of this age range or not currently enrolled were excluded.
Results: The study found that 93.6% (n = 379) of the participants had heard of vape smoking, with 70.4% (n = 285) demonstrating a high level of awareness regarding vape smoking risks. Notably, 13.3% (n = 54) reported vape smoking prevalence, with gender differences observed. However, no statistically significant association was found between awareness levels and sociodemographic characteristics.
Conclusion: The study underscores the importance of increasing awareness about the hazards of vape smoking, especially among young adults. The findings highlighted the need for targeted educational campaigns and regulatory measures to address the rising prevalence of vape smoking among university students in Saudi Arabia.
Risk factors of disease severity and mechanical ventilation requirement in childhood Guillain-Barré Syndrome
Authors: Yücel Gül , Arslan Ahmet Kadir , Özgör Bilge , Güngör Serdal
Published: December 2024

Background. This study aimed to investigate the risk factors associated with the severity of the disease, the need for mechanical ventilation (MV) and poor prognosis in the early stages of Guillain-Barré Syndrome (GBS).
Methods. Data of children who met GBS diagnostic criteria were evaluated retrospectively. The sample was divided into three binary subgroups according to severe GBS (Hughes Functional Grading Scale [HFGS] ≥ 4 at admission), mechanical ventilation (MV) requirement, and poor prognosis (inability to walk independently, HFGS ≥ 3 after six months). Various clinical, laboratory and electrophysiological parameters were compared between these subgroups.
Results. The mean age of 63 children with GBS was 91.55±49.09 months. 13 (20.6%) patients required MV and 4 (6.3%) patients died. Associated risk factors for the need for MV in severe GBS were found to be autonomic dysfunction, bulbar palsy, sensory impairment, lowest total Medical Research Council (MRC) scale for muscle strength score at admission, high modified Erasmus GBS respiratory failure score (mEGRIS), high neutrophil-lymphocyte ratios (NLR) and high systemic immune-inflammation index (SII) values (p<0.001, p=0.003, p=0.033, p<0.001, p<0.001, p=0.037 and p=0.042, respectively). The lowest total MRC scale for muscle strength score at admission was a significant indicator of poor prognosis (p<0.001).
Conclusions. Autonomic dysfunction, bulbar palsy, sensory impairment, lowest total MRC scale for muscle strength score at admission, high mEGRIS score, high NLR and SII values are potential risk factors for the need for MV in children with severe GBS. The lowest total MRC scale for muscle strength score at admission was associated with poor prognosis.
Ethical Considerations for Children Undergoing Surgery: Evaluation of Graduate Nursing Students’ Learning
Authors: Gautrin Ariane , Wang Yi Wen , Passos dos Santos Raissa , Carnevale Franco A. , Cervantes Amanda , Tsimicalis Argerie
Published: December 2024

Background: To challenge dominant conceptions of children and innovate nursing education, our team created an open-access training module (https://childsxethics.net/) addressing ethical considerations for children undergoing surgery. 
Objective: To evaluate the level of Bloom’s Taxonomy cognitive, affective, and psychomotor learning reached by graduate nursing students after completing the training module. 
Methods: A qualitative descriptive study was conducted using Bloom’s Taxonomy. Data sources comprised of participants’ course assignments.
Results: Participants (n=19) wrote 19 online reflections, 43 peer responses and completed two group assignments. The module and associated class assignments promoted high levels of cognitive and affective learning. The type of assignment influenced participants’ levels of learning. Cognitive and affective learning processes were enhanced when integrating reflections and fostering interactions among learners.
Implications: Study findings will inform future iterations of the training module. Our innovative educational resource will facilitate the recognition of children as active moral agents and improve their surgical experiences.
Upaya Pencegahan Hipertensi Melalui Program ‘MARI GASI’ di Wilayah Kerja Puskesmas Pangkalan
Authors: Kasra Kamal , Fahdi Nadifah Khairini , Farhan Muhamad , Putri Nurul Aulia , Oktafiani Sinta , Fritiara Fritiara , Firnandia Asha  , Surya Rezi Fatrima
Published: December 2024

Hypertension or high blood pressure is one of the significant health problems in the world, including in Indonesia. The prevalence of hypertension in Lima Puluh Kota Regency in 2022 reached 15% or 10,688 out of 70,250 people who took blood pressure measurements. However, only 627 people (11.8%) took blood pressure measurements and received hypertension services according to standards. Therefore, it is necessary to increase public knowledge about hypertension. This service activity was carried out in September 2023 through the emo-demo method, which expects health promotion efforts through an emotional approach. The service activities were carried out on 37 community members, and it was found that there was an increase in the average score of community knowledge from 51.56 to 90.63. An increase can follow this increase in community knowledge, attitudes, and actions toward efforts to prevent and control hypertension, including the prevention of complications of hypertension in the community.
Las capacidades tecnológicas en las unidades productoras agropecuarias de las passifloras en el departamento del Huila
Authors: Muñoz Velasco Luis Alfredo , Garzón Cabrera Maria Camila , Andrade Gómez Maria Valentina
Published: December 2024

El siguiente estudio se centra en evaluar el desarrollo de las capacidades tecnológicas en las unidades productivas dedicadas al cultivo de pasifloras en el departamento del Huila. Para ello, se empleó el marco teórico proporcionado por la CEPAL, aplicando técnicas de análisis de componentes principales y el algoritmo de K-means para agrupar los datos obtenidos de los microdatos del Censo Nacional Agropecuario. Los resultados revelaron un bajo nivel de desarrollo en las capacidades tecnológicas de las unidades productivas evaluadas. Se identificó que aproximadamente el 73% de estas unidades presentaron deficiencias en elementos relacionados con el indicador de esfuerzo, en aspectos como la asociatividad entre productores, la inversión de recursos económicos en tecnología y equipos, así como la implementación de prácticas de mejoramiento del suelo y control de plagas. Por otro lado, como una fortaleza destacable, se observó una participación significativa, en promedio del 55% de las unidades productivas, en el indicador de infraestructura. Este indicador incluyó características como la antigüedad de la maquinaria utilizada y el acceso a servicios públicos básicos como electricidad y agua potable. Estos hallazgos subrayan la necesidad de implementar políticas y programas orientados a fortalecer las capacidades tecnológicas en el sector agrícola del Huila, con un enfoque particular en promover la asociatividad entre los productores, la inversión en tecnología y prácticas agrícolas sostenibles, así como la modernización de la infraestructura agrícola. Este enfoque integral es esencial para promover un desarrollo agrícola sostenible y competitivo en la región.
Criterios de medición y revelación de activos biológicos para empresas chilenas y peruanas
Authors: Hernández Pajares Julio , Tolentino Monjorte Hilda
Published: December 2024

Este artículo examina la forma en que las empresas cotizadas de Perú y Chile han aplicado los criterios de medición y revelación de información sobre los activos biológicos con arreglo a la NIC 41. Adicionalmente, se busca determinar la influencia de variables como país, tipo de firma auditora, naturaleza del activo biológico, inversión en activos biológicos, tamaño de la empresa y rentabilidad sobre estos criterios de medición y niveles de revelación. Utilizamos un enfoque cuantitativo, un estudio descriptivo-relacional transversal sobre los estados financieros de 2021-2022, y un análisis de contenido de los informes anuales y pruebas de Chi-cuadrado, ANOVA de un factor y correlación de Pearson para probar nuestras hipótesis. Los resultados demuestran que ni el país, ni el tipo de empresa auditora, ni el tipo de activo biológico influyeron en el modelo de medición. El nivel de divulgación incluye principalmente descripciones de activos biológicos, actividades agrícolas y riesgos financieros; es mayor para las empresas chilenas y las auditadas por las firmas de auditoría Big Four. Hubo una correlación significativa entre la inversión en activos biológicos y la rentabilidad con el nivel de divulgación, que es mayor para las empresas con inversiones sustanciales en activos biológicos que buscan una mayor transparencia con sus inversores y acreedores en sus decisiones de inversión.
ANALISIS KUALITAS PELAYANAN CIKARANG DRY PORT DENGAN METODE IMPORTANCE - PERFORMANCE ANALYSIS DAN KANO
Authors: Puspitasari Reni
Published: December 2024

Kegiatan perekonomian, khususnya dalam dunia perdagangan, erat kaitannya dengan kegiatan ekspor dan impor yang merupakan kegiatan utama dalam distribusi barang. Keberadaan industri-industri di wilayah hinterland mendorong terbentuknya konsep pelabuhan darat yang berfungsi seperti pelabuhan laut pada umumnya, sebagai penunjang kegiatan ekspor, impor, serta distribusi barang dan komoditas yang dihasilkan. Hal ini memunculkan pemikiran untuk menganalisis kualitas pelayanan Cikarang Dry Port, seiring dengan isu kemacetan di terminal pelabuhan Tanjung Priok. Untuk mengukur kualitas dari pelayanan Cikarang Dry Port digunakan Servqual sebagai metode yang dijadikan dasar penentuan variabel kualitas layanan. Variabel yang digunakan dalam menentukan kualitas pelayanan Cikarang Dry Port adalah berdasarkan lima dimensi layanan dalam Servqual, yaitu reliability, responsiveness, assurance, empathy dan tangible. Berdasarkan lima variabel (dimensi layanan) tersebut diidentifikasi atribut-atribut layanan yang dapat mempengaruhi kepuasan pengguna jasa Cikarang Dry Port, sehingga dapat dianalisis kualitas layanan dariCikarang Dry Port. Oleh karena peneliti memiliki keterbatasan dana, tenaga dan waktu, maka peneliti hanya memperoleh sampel sebanyak 38 responden, yang terdiri dari perusahaan yang bergerak di bidang logistics service provider, seperti freight forwarder, shipping liner, serta perusahaan Ekspedisi Muatan Kapal Laut (EMKL). Pengumpulan data dilakukan pada bulan November 2014. Metode yang digunakan untuk mengukur kualitas layanan Cikarang Dry Port adalah metode Importance-Performance Analysis (IPA) dan Kano. Hasil pengintegrasian antara metode IPA dan Kano didapatkan urutan prioritas perbaikan atribut-atribut layanan, yaitu T23: terdapat depo pemeliharaan dan perawatan kontainer, R4: kemudahan proses konsolidasi barang, T18: perkantoran yang bersih dan nyaman, R3: kemudahan proses penerimaan dan pengiriman barang, A12: petugas memberikan pelayanan dan informasi secara benar, RES8: petugas cepat menindaklanjuti keluhan pelanggan, A14: jaminan keamanan dan keselamatan barang dari kerusakan dan kehilangan, T21: peralatanhttp://removelinebreaks.net/a/removelinebreaks/top.png bongkar muat yang memadai, RES7: petugas cepat dan tanggap dalam melayani pelanggan. Oleh karena itu untuk mempertahankan atau meningkatkan kualitas layanan guna memenuhi kepuasan pengguna jasa, maka atribut-atribut tersebut harus menjadi perhatian utama Cikarang Dry Port selaku operator.
ANALISIS ASAL TUJUAN KOMODITI UTAMA ANTAR WILAYAH PULAU JAWA, KALIMANTAN, DAN NUSA TENGGARA TIMUR
Authors: Perdana Yandra Rahadian , Soemardjito Joewono
Published: December 2024

Distribusi komoditi antar wilayah masih menunjukkan ketimpangan volume muatan antara wilayah Barat Indonesia, dalam hal ini Pulau Jawa, dan wilayah Timur Indonesia, dalam hal ini Pulau Kalimantan dan Pulau Nusa Tenggara. Untuk mengetahui kondisi tersebut, maka perlu diidentifikasi dan dianalisis pola pergerakan (asal-tujuan) komoditi utama berbasis pangan antar wilayah melalui jalur laut di Pulau Jawa, Kalimantan, dan Nusa Tenggara. Metode analisis yang digunakan dalam studi ini adalah analisis berbasis Matriks Asal Tujuan (MAT) dengan dukungan data lalu lintas barang pada 5 pelabuhan yang dikaji, yaitu: Pelabuhan Tanjung Emas, Pelabuhan Tanjung Perak, Pelabuhan Banjarmasin, Pelabuhan Lembar, dan Pelabuhan Tenau. Hasil analisis data asal-tujuan komoditi utama dalam sepuluh tahun terakhir menunjukkan: (i) ketidakseimbangan muatan antar pelabuhan/wilayah; (ii) hubungan antara wilayah(pulau) ditinjau dari jenis komoditinya; dan (iii) kuatnya posisi Pelabuhan Tanjung Perak sebagai simpul distribusi komoditi antar wilayah di Pulau Jawa, Kalimantan, dan Nusa Tenggara
KONEKTIVITAS INTERMODA PADA PENGEMBANGAN STASIUN MANGGARAI YANG BERBASIS TRANSIT ORIENTED DEVELOPMENT
Authors: Tiara Okita Sisy , Ikaputra Ikaputra , Widyastuti Dyah titisari
Published: December 2024

Pemerintah Daerah DKI Jakarta berupaya membuat terobosan untuk menanggulangi permasalahan kemacetanyang terjadi di DKI Jakarta, dengan merencanakan untuk membangun kawasan terpadu di beberapa titikpenting di Jakarta. Konsep TOD (Transit Oriented Development) merupakan bentuk perencanaan yangmengintegrasikan perencanaan spasial dengan perencanaan sistem transportasi kota, dengan stasiun sebagaipusatnya. Kawasan Stasiun Manggarai merupakan salah satu kawasan yang oleh Pemerintah Daerah DKIJakarta ditetapkan sebagai Kawasan TOD, seperti yang tertuang di dalam RTRW DKI Jakarta tahun 2030.Hal ini karena Stasiun Manggarai dianggap memenuhi tiga persyaratan pertimbangan perletakan kawasanTOD yaitu merupakan perpotongan koridor angkutan massal (dua atau lebih), kawasan yang memiliki nilaiekonomi tinggi atau diprediksi akan memiliki nilai ekonomi tinggi, dan kawasan yang ditetapkan sebagai pusatkegiatan. Namun kondisi kawasan stasiun Manggarai saat ini yang seharusnya merepresentasikan kawasanberbasis transit, diduga mengalami ketimpangan kondisi empiris terhadap kondisi ideal sebuah kawasanberbasis TOD. Kawasan Manggarai belum memiliki integrasi dan konektivitas intermoda yang memadai,sehingga perjalanan yang dilakukan oleh masyarakat menjadi tidak efektif dan tidak efisien. Maka penelitianini mengambil fokus tentang konektivitas intermoda dengan tujuan untuk mengetahui tingkat konektivitasintermoda yang ada di kondisi eksisting kawasan Stasiun Manggarai saat ini. Sehingga dapat diketahuifaktor-faktor yang mempengaruhi tingkat konektivitas intermoda di sebuah kawasan Stasiun dan hal-halyang perlu diperbaiki untuk mengisi gap antara kondisi empiris dengan kondisi ideal sebuah kawasan TOD.Penelitian ini dilakukan dengan metoda kualitatif yang mengelaborasikan berbagai teori terkait konektivitasintermoda di kawasan TOD sebagai dasar penilaian kondisi lapangan dari kawasan Stasiun Manggarai.Sehingga pada akhirnya diperoleh kesimpulan mengenai tingkat konektivitas intermoda di kawasan StasiunManggarai dan rekomendasi yang hendak disusun agar kawasan Stasiun Manggarai siap menjadi kawasanTOD dengan tingkat konektivitas intermoda yang paling optimal.
Inverse Design of Low-Boom Supersonic Aircraft with Cylindrical Pressure Distribution
Authors: Utsumi Yuki
Published: December 2024

An inverse design of supersonic aircraft with low-boom in full-carpet, low-drag, and longitudinal trim using cylindrical pressure distribution is proposed. Defining consistent cylindrical pressure distribution and reconstructing geometry from the cylindrical pressure distribution have been challenging. In this paper, a function to express consistent cylindrical pressure distribution that satisfies the Helgason–Ludwig consistency conditions is used to define a target. Projections onto convex sets that are used in the field of limited angle tomography are applied to reconstruct a geometry iteratively. For sonic boom propagation, a fast low-fidelity method with Cole–Hopf transformation to solve the Burgers equation is proposed. An implementation of multipole analysis with piecewise series expansion of the multipole function is included and is used for resolving circumferential flow effects in near-field analysis for sonic boom propagation and for comparison with far-field linear theory. Case studies show the validity of the proposed methods.
Non-Myopic Sensor Scheduling for Linear Systems with Colored Noise
Authors: Tuggle Kirsten , Kim Donghae , Akella Maruthi , Tanaka Takashi
Published: December 2024

This paper addresses the task of sensor selection over a finite time horizon for systems modeled via discrete-time, linear state-space representations. Our method for this general linear setting accommodates both spatial and temporal noise correlations. To our best knowledge, this is the first work to do so. Scheduling policies are designed to limit sensor usage and minimize a minimum-mean-square-error-based criterion with time-varying weights to accommodate different user scenarios (e.g., prioritizing certain state elements at certain times or performing linear quadratic Gaussian control). The approach is also nonmyopic since the effects of sensor activations on all time steps are incorporated. A new but algebraically equivalent formulation of the scheduling model is introduced that readily accounts for colored noise sequences. This lends a closed-form expression for the error covariance that is explicit in all scheduling variables. Such an expression had been considered intractable for filtering in both white and colored noise regimes. This expression is leveraged to develop a well-motivated surrogate objective function that is shown to be submodular, thus enabling the use of an efficient greedy algorithm accompanied by performance guarantees with respect to the surrogate objective. Numerical examples are provided to demonstrate the effectiveness of the proposed methodology.
Investigation of Chaotic Flutter Induced by Shock-Boundary-Layer Interactions
Authors: Palakurthy Seshendra , Schemmel Avery , Zope Anup , Collins Eric , Bhushan Shanti
Published: December 2024

In this report, we investigate the onset of chaotic flutter in laminar and turbulent flows over a two-dimensional semi-infinite panel using time-accurate fluid–structure interaction (FSI) simulations of shock–boundary-layer interactions (SBLIs). Results indicate that the critical dynamic pressure and the nature of the panel dynamics strongly depend on the static pressure differential across the shock, the local loading, the viscous and turbulent damping in the flow, and the formation of dynamic flow separation bubbles due to the SBLIs. The structural system undergoes local instability (Hopf bifurcation) when the local loading due to panel deformation overcomes the static pressure differential across the shock. In the absence of external fluid instabilities, the structural oscillations will induce unsteadiness in the flowfield, resulting in low-frequency limit-cycle oscillations. Viscous and turbulent damping in the boundary layer also delays the bifurcation and reduces the amplitude of the oscillations. Sufficiently strong shocks can produce localized flow separations, which drive additional boundary-layer instabilities, resulting in an early bifurcation. In the presence of external fluid instabilities, the behavior of the FSI strongly depends on the nonlinear coupling of their instabilities. Chaotic oscillations are observed when the fluid instabilities are dominant enough to induce structural oscillations with broadband frequencies.
Flutter Analysis and Morphing Evaluation of Biomimetic Wing Structure
Authors: Cao Dongxing , Gao Chi , Zhou Xinxing , Zhou Yiwei , Wang Jianfei , Guo Xiangying
Published: December 2024

Advanced aircrafts have incorporated bio-inspired morphing structures to adapt to multienvironment and perform multimission. But it will cause serious issues with structural reliability and aeroelastic stability. This paper studies the critical flutter speed of a morphing wing structure and evaluates the deformation strategies. First, a biomimetic wing is considered as a variable cross-section cantilever beam, and the flutter model with Theodorsen unsteady aerodynamics is theoretically derived. The finite element theory is used to discretize the obtained PDEs with variable coefficients. Second, three typical wing models are examined to verify the model’s accuracy against finite element simulation findings for modal frequencies and critical flutter speeds. The results indicate good agreement, with errors of less than 3% for modal frequencies and fewer than 2.1% for critical flutter speeds. Thirdly, the flutter wind speeds are examined to assess the aeroelasticity properties for three different morphing strategies of biomimetic wing structures. The findings show that both forward bending of the elastic axis and greater density concentration near the wing root increase flutter speed. And the density distribution has a smaller effect on flutter speed than elastic axis bending. When it comes to static aeroelasticity, excessive folding ratios cause divergence problems.
Representaciones de alteridad a través del lenguaje del cómic: Cleopatra VII, ejemplo de recepción de un personaje histórico
Authors:   Universidad de Las Palmas de Gran Canaria (España), García Fleitas María de la Luz
Published: December 2024

This work approaches the reception of the historical character Cleopatra VII within comic books. By translating the collective imagination through a scripto-iconic code that comprises both text and images, comics present a mode of expression that portrays this character within the confines of otherness: a simplified image based on the dichotomous relationship between the Western and the Eastern worlds. This assertion is substantiated through the analysis of panels from Asterix and Cleopatra by Goscinny and Uderzo (1965), Cleopatra and the Lost Pyramid by Martz-Schmidt and Pérez Navarro (1986), and Cleopatra: The Fatal Queen by Marie and Thierry Gloris and Joël Mouclier (2017-23). Using the perspective of Classical Reception, the analysis has shown that, although each era and each culture projects its own Cleopatra under various social, political, and cultural conditioning factors, this character is maintained in our imaginary grounded on certain common places that mark said otherness.
La relación simbólica antimoderna entre las armas y las letras en Juan Eduardo Cirlot /
Authors:   Universidad de Granada (España), López-Latorre Alicia
Published: December 2024

This article aims to demonstrate how symbolic and antimodern thought structures the relationships between the literary and military dimensions in the work of Juan Eduardo Cirlot. The central hypothesis posits that his conception of authentic poetry and the metaphysical value associated with war are understood as analogous values co-implicated in the launch toward spiritual sublimation. From this perspective, the figure of the poet becomes equivalent to that of the warrior. To carry out this study, a selection of texts about his poetics and the importance of the warlike component has been analyzed, particularly focused on the veneration of his military ancestors and swords. In this manner, the meaning of arms and letters in the author´s work is reinterpreted.
Implementation ways for oil and gas exploration in the southwestern part of the Kara Sea
Authors:   Oil and Gas Research Institute of RAS, Shuster V.L. , Punanova S.A. ,   Oil and Gas Research Institute of RAS, Dzublo A.D. ,   Oil and Gas Research Institute of RAS, Agadzhanyants I.G. ,   All-Russian Scientific Research Geological Petroleum Institute
Published: December 2024

In the highly promising oil and gas regions of Russia — the southwestern part of the Kara Sea, in the Pripaykhoi-Prinovozemelskaya monoclise in the near future, a transition from regional stage activity to exploration is planned. Given the complex natural, climatic and geological conditions of the region, during the effective exploration and development of oil and gas resources, it will be necessary to use new methodological solutions and research types. Based on the results of the research, and using the analogy method, the authors have substantiated the prospects for the region oil and gas potential and priority objects, and have drawn up an exploration program for promising objects.
Formation of technogenic hydrochemical flows during the development of tin deposits in the Arctic regions of Yakutia
Authors:   Melnikov Permafrost Institute of the Siberian Branch of the Russian Academy of Sciences, Makarov V.N.
Published: December 2024

The article analyzes the results of studying technogenic hydrochemical dispersion flows arising during the development of ore and placer tin deposits in the Arctic regions of the North-East of Yakutia. Most of the large tin deposits are located beyond the Arctic Circle: primary (Deputatskoye, Dyakhtardakhskoye, Kester, Ulakhan-Egelyakhskoye, Churpunnya, Ege-Khaya) and placer (Smolnikova, Tasappa, Tirekhtyakh, Chokurdakhskaya) deposits. Development of tin deposits leads to a sharp change in the chemical composition of natural waters and the formation of extensive technogenic hydrochemical flows that negatively affect ecosystems. Pollution of natural waters during the development of tin deposits is associated with abnormal concentrations of mineral suspensions, sulfates, hydrogen, iron, aluminum, manganese, copper, zinc, lead, arsenic, and mercury.
Justification of the method for regulating the level of oil pollution of soils on the territory of oil production and transportation facilities in the Arctic zone
Authors:   A.M.Obukhov Institute of Atmospheric Physics Russian Academy of Sciences, Makosko A.A. , Korolevа L.A. ,   Saint-Petersburg State Fire Service University named after E.N. Zinichev, Malygin I.G. ,   Solomenko Institute of Transport Problems of the Russian academy of sciences, Tarantsev A.A. ,   Solomenko Institute of Transport Problems of the Russian academy of sciences, Zaykin R.G. ,   Saint-Petersburg State Fire Service University named after E.N. Zinichev
Published: December 2024

The development prospects of the Arctic zone are associated with oil production and transportation. During operation of oil production and transportation facilities emergency oil spills are possible. The monitoring of the soil cover state requires established standards for permissible oil pollution of soils. The study is aimed at developing a method for local regulation of oil pollution of soils on the territory of oil production and transportation facilities located in the Arctic zone.
Soil samples were studied in the local area of the Musyurshorskoye field, including oil production and transportation facilities,. The arbitration IR spectroscopic method was used to determine the concentrations of oil and oil products in the soil. The authors have justified the feasibility of using logistic regression for processing the experimental data array.
A method has been developed and parameters for local regulation of oil and oil product content in soils on the territory of oil production and transportation facilities in the Arctic zone have been determined. The presented regulation system allows taking into account the background content of organic matter in soils in the studied area of the territory, classifing soils according to the degree of oil pollution, and identifing signs of an environmental emergency.
Strategic Integration of Climate Change Adaptation and Mitigation to support Climate Village Program in Rural Indonesia
Authors: Mandra Moh. Ahsan S. , Amir Faizal , . Mithen
Published: December 2024

This study was related to climate change adaptation and mitigation in the rural community. Its primary objective was to determine a strategy for community empowerment through the integration of mitigation and adaptation actions to support the Climate Village program (PROKLIM). The Participatory Rural Appraisal (PRA) and FGD were adopted to facilitate community in action plan development. SWOT analysis and Analytical Hierarchy Process (AHP) were used to identify and select the most viable strategies based on their weighted scores.

From the SWOT analysis, eight alternative strategies were formulated including: (1) optimizing the use of local natural resources (SO1), (2) enhancing community capacity in adaptation and mitigation (knowledge, attitudes and skills) (SO2), (3) strengthening collaborations with both governmental and non-governmental organizations (WO1), (4) augmenting financial support from village funds for adaptation and mitigation efforts (WO2), (5) reinforcing continuous training of local groups (ST1), (6) enhancing natural resource management to increase community income (ST2), (7) increasing the capacity of the local village government (WT1) and (8) promoting the benefits of Climate Village program awareness and the importance of environmental protection (WT2). Through the AHP, three strategies were found to have the highest weight as follows: (1) SO2, (2) WO2 and, (3) WO1.
How Low Can You Go: Exploring the Extreme Mass Ratio of Massive Binary Stars
Authors: Abraham Erin , Caballero-Nieves Saida M. , Reggiani Maddalena
Published: December 2024

Massive stars burn bright and die young, and yet play a vital role in the evolution of our Universe. Massive stars are primarily found with companions in binary or multiple systems, but observational bias has obstructed the detection of extreme mass ratio binaries. With the advancement of high spatial resolution instrumentation, we are now poised to explore the lower end of the binary mass ratio, consisting of sub-solar, pre-main sequence stars. Here I present an analysis of seven massive stars in the young, active star-forming region M17 using data from the Spectro-Polarimetric High contrast Exoplanet REsearch (SPHERE) instrument on the Very Large Telescope. A radial velocity study of M17 by Ramirez–Tannus et al. (2017, DOI:10.1051/0004-6361/201629503) found fewer binary systems than expected. Our study is complementary to the previous work in the region to search for wide companions to massive stars in order to fill in our picture of massive star formation and the effect of multiple systems on the dynamical history of the region. SPHERE is uniquely capable of probing the lower end of the binary mass ratio due to its ground-breaking extreme adaptive optics and coronagraphic capabilities which allow us to achieve greater contrast ratios than traditional adaptive optics. We utilized the high spatial resolution imaging techniques of SPHERE in order to resolve binary systems with contrast ratios of up to 10 mag in the infrared and detect stellar companions to massive stars in the subsolar mass ranges. We present simultaneous dual-band imaging and integral-field spectroscopy of massive stars ranging from O4V–O9V. From a preliminary inspection, we found potential companions for all seven target stars. We measured flux contrast, position angles, and angular separation of our systems. Utilizing the Vortex Image Processing pipeline, we applied the negative fake companion technique in order to characterize the companions with differential magnitudes. Using this analysis, we will determine if the detected companions are foreground or field objects and estimate their mass ratio.
Hot and Cool: Characterising the Companions of Red Supergiant Stars in Binary Systems
Authors: Patrick Lee R. , Negueruela Ignacio
Published: December 2024

In this article we study the nature of the recently identified populations of hot companions to red supergiant stars (RSGs). To this end, we compile the literature on the most well characterised systems with the aim of better understanding the hot companions identified with ultra-violet photometry and confirmed with Hubble Space Telescope spectra in the Local Group. We identify nine systems with current masses greater than around 8M⊙ that have constraints on their orbital periods, which are in the range of 3 to 75 yr. Antares (α Sco) is the obvious outlier in this distribution, having an estimated orbital period of around 2000 yr. Mass-ratio (q = M2/MRSG) estimates are available only for five of the compiled systems and range between 0.16 and 1. Ongoing efforts to identify and characterise hot companions to RSGs in the SMC have revealed 88 hot companions that have observational constraints free of contamination from the RSG component and show a flat-q distribution in the range 0.3 < q < 1. We present a summary of a recently conducted HST UV spectroscopic survey that aims to characterise a subset of these companions.
Interacting Supernovae from Wide Mass-transferring Binaries
Authors: Ercolino Andrea
Published: December 2024

The light curves and spectra of many Type I and Type II supernovae (SNe) are heavily influenced by the interaction of the SN ejecta with circumstellar material (CSM) surrounding the progenitor star. The observed diversity shows that many progenitors have undergone some level of stripping and polluted their CSM shortly before the explosion. The presence of a binary companion and the mass transfer that can ensue offers a mechanism that can give rise to this diversity. We present a set of detailed massive evolutionary models in which the donor star, a Red Supergiant (RSG) is in a wide orbit around a main-sequence companion, and undergoes stable or unstable mass transfer in the later stages of evolution, up to the moment of core collapse. We also discuss some significant physics of these systems that may impact our results, from the presence of pulsations and extended atmospheres in RSGs, to the initial eccentricity of the orbit. The resulting SN types range from Type IIP to H-deficient IIb and H-free Ib. In models undergoing stable mass transfer, the material lost during this process is expected to form a dense CSM surrounding the system by the time of core collapse and give rise to significant interaction effects in the SN light curve and spectra. In the systems with unstable mass transfer mass transfer, the SN may occur during common-envelope evolution. In this case, the progenitor may show significant variability in the last few thousand years before core collapse, and the following SN will likely exhibit strong interaction effects.
Can Neutron Star Mergers Alone Explain the r-process Enrichment of the Milky Way?
Authors: Vanbeveren Dany , Mennekens Nicki
Published: December 2024

Mennekens and Vanbeveren (2014, DOI: 10.1051/0004-6361/201322198) studied the effect of double compact star mergers on the Galactic chemical enrichment of r-process elements. LIGO merger detections since 2015 and new r-process element yields as a function of neutron star + neutron star (NS+NS) and neutron star + black hole (NS+BH) mass requires an update of the 2014 computations. The results of the update are the scope of the present paper.