bluuebunny/crossref_metadata_2025 huggingface dataset:
Investigation on drag reduction on rotating blade surfaces with microtextures
Authors: Zhu Qinsong , Zhang Chen , Yu Fuhang , Xu Yan
Published: July 2024

To enhance the aerodynamic performance of aero engine blades, simulations and experiments regarding microtextures to reduce the flow loss on the blade surfaces were carried out. First, based on the axisymmetric characteristics of the impeller, a new simulation method was proposed to determine the aerodynamic parameters of the blade model through the comparison of flow field characteristics and simulation results. Second, the placement position and geometrical parameters (height, width, and spacing) of microtextures with lower energy loss were determined by our simulation of microtextures on the blade surface, and the drag reduction mechanism was analyzed. Triangular ribs with a height of 0.2 mm, a width of 0.3 mm, and a spacing of 0.2 mm exhibited the best drag reduction, reducing the energy loss coefficient and drag by 1.45% and 1.31% for a single blade, respectively. Finally, the blades with the optimal microtexture parameters were tested in the wind tunnel. The experimental results showed that the microtexture decreased energy loss by 3.7% for a single blade under 57° angle of attack and 136.24 m/s, which was favorable regarding the drag reduction performance of the impeller with 45 blades.
Implementasi Problem Based Learning Terintegrasi TIK: E-LKPD Berbasis Liveworksheet Di SMK Negeri 1 Tana Righu
Authors: Bili Dominggus , Bunga Naen Alfons , Ama Ki'i Oktavianus , Dewa Egidius , Mukin Maria Ursula Jawa , Claudia Mariska M.Maing
Published: July 2024

Observasi di SMK Negeri 1 Tana Righu menunjukkan bahwa guru jarang menggunakan model, media, atau teknologi pembelajaran yang sesuai dengan karakteristik materi dan peserta didik. Hal ini menyebabkan pembelajaran terkesan kurang menarik dan monoton, yang berdampak pada rendahnya motivasi dan hasil belajar peserta didik. Penelitian ini bertujuan menginvestigasi dampak penerapan model problem based learning terintegrasi TIK menggunakan e-LKPD Liveworksheet pada pembelajaran Fisika materi zat dan perubahan. Penelitian ini merupakan quasi eksperimen dengan desain one-shot case study. Subjek penelitian adalah 16 peserta didik kelas X. Instrumen penelitian berupa tes kognitif dan lembar observasi untuk aspek sikap dan keterampilan, divalidasi oleh dosen pendidikan fisika, kepala sekolah, dan rekan guru. Data dianalisis dengan teknik ukuran gejala pusat ditinjau dari nilai rata-rata dan simpangan baku. Hasil menunjukkan pemahaman materi yang baik dengan nilai rata-rata 76,88. Sikap gotong royong dan tanggung jawab dikategorikan sangat baik dengan nilai rata-rata 96,67 dan 85,94. Sikap kreatif, mandiri, dan kritis dikategorikan cukup baik dengan nilai rata-rata 53,13; 59,37; dan 40,67. Keterampilan peserta didik dalam eksperimen dikategorikan sangat terampil dengan nilai rata-rata 82,81 dan keterampilan komunikasi dikategorikan terampil dengan nilai rata-rata 65,63. Penerapan PBL berbasis TIK memberikan dampak positif terhadap pemahaman materi, namun pengembangan sikap peserta didik masih diperlukan.
Guía Educativa Para La Formación Ambiental, Social Y Científica De La Región Pacífica Colombiana
Authors: Gutiérrez González Erwin
Published: July 2024

En la presente investigación se recopilan datos acordes para el evento mundial de biodiversidad a llevarse a cabo en la ciudad de Santiago de Cali en Colombia, especialmente para todos los interesados en participar en la COP16 y otros programas ambientales, se han seleccionado informaciones del tema región pacífica colombiana y así tener un material base, elaborado desde distintos portales web informativos y una vez se clasifican tendremos una guía que nos ayuda en comprensión de temas a exponerse en el evento, desde las acciones de vida que se presentan en esta zona del mundo, se recopilan datos de información con  soportes de tipo científico y social para poder entender la idiosincrasia de una zona que está adscrita a un país caracterizado como pluri étnico y multicultural, pero que aun estando en vía de desarrollo, así su inversión estatal en investigación científica sea bajo respecto a otras necesidades de rápida solución social, sin embargo se aporta en este campo del saber desde sus diferentes ministerios gubernamentales, con propuestas de solución acorde al contexto que se vive y especialmente en los retos de tipo ambiental ante un mundo en crisis.
Hizmet Telafisinde Davranışsal Niyetler: Bir Meta Analiz
Authors: Öztürk İlker
Published: July 2024

Bu çalışmanın temel amacı, hizmet telafisinin müşteri davranışları üzerindeki etkilerini meta-analitik bir yöntemle sistemli bir şekilde değerlendirmektir. Araştırma, hizmet telafisi ve davranışsal niyet arasındaki ilişkiyi daha derinlemesine anlamak adına çeşitli araştırma alanlarından gelen makaleleri bir araya getirmiş ve kapsamlı bir meta-analiz gerçekleştirmiştir. Bu kapsamda WOS ve Google Akademikte yer alan 31 çalışma analize dâhil edilmiştir. Bu araştırmada elde edilen veriler, Comprehensive Meta-Analysis Software v4 kullanılarak analiz edilmiştir. Bu bağlamda, araştırmaların potansiyel yanlılıklarını belirlemek ve değerlendirmek amacıyla Egger testi ve Funnel Plot grafiği kullanılmıştır. Ayrıca, yer alan çalışmaların genel evreni temsil ettiğini ve bu örneklemin evren genelindeki eğilimleri yansıttığını belirlemek için Heterojenlik testi yapılmıştır. Sonuçları görsel olarak temsil etmek için ise Meta Analiz Orman Grafiği kullanılmıştır. Araştırma sonuçlarına göre ortalama etki büyüklüğü 0,396 olarak hesaplanmış olup %95 güven aralığı 0,261 ila 0,515 arasındadır. Bu değer, orta düzeyde pozitif bir ilişkinin varlığını göstermektedir. Sonuçlar, hizmet telafisinin, tüketicilerin gelecekteki davranışları üzerinde olumlu bir etkisi olduğunu ve incelenen etki büyüklüğünün anlamlı ve istatistiksel olarak güvenilir olduğunu ortaya koymaktadır. Bu meta-analiz çalışması, hizmet telafisinin müşteri davranışlarına olan etkilerini sistemli bir şekilde sentezleyerek, literatüre önemli bir katkı sağlamaktadır. Sonuçlar, işletmelerin hizmet telafisi stratejilerini daha etkili bir şekilde tasarlamalarına ve gelecekteki çalışmalara yardımcı olacaktır.
Commercial techniques to improve customer service
Authors: Menéndez Ledesma María José , Romo Álvarez Magaly de Jesús
Published: July 2024

The advance of digital platforms has transformed the shopping process, making it more accessible and practical. In this study, we seek to understand the preferences of customers of commercial premises of Malecón 2000 in the city of Guayaquil, both in their face-to-face and online shopping. The sample focused on customers between 20 and 40 years old, using a descriptive research with a quantitative approach through surveys in Google Forms.  The studies surveyed highlight different aspects of customer service and commercial techniques, while the results obtained underline the importance of direct interaction with merchants. They also highlight the need to improve product diversity and the online shopping experience to maintain market relevance in an increasingly competitive retail environment.
Management strengthening strategies for transport cooperatives: a case study in Riobamba
Authors: Avila Pesántez Luz Miriam , Chicaiza Cartagena Andrea Carolina
Published: July 2024

Transport cooperatives face administrative challenges that affect their efficiency and competitiveness. This study focuses on the Interprovincial Transport Cooperative "Transvencedores" of Riobamba, Ecuador, with the objective of designing an administrative strengthening plan to improve its management and service. The research, with a qualitative and descriptive approach, used surveys and interviews with 25 staff members and 384 users, applying tools such as the SWOT matrix and the internal (EFI) and external factor evaluation (EFE) matrices to identify strengths, weaknesses, opportunities and threats. The results revealed significant administrative problems, such as the lack of process automation, poor internal communication and the absence of a clear organizational philosophy. It was concluded that the cooperative requires ongoing staff training strategies, implementation of new technologies to control activities, and improved internal communication. These measures are essential to improve operational efficiency and customer satisfaction, positioning the cooperative as a leader in interprovincial transportation in Riobamba.
Development of tourism and tourism services in the canton of Nobol
Authors: López Brunett Ana Luisa , Asuncion Genesis
Published: July 2024

The study seeks to investigate tourism development in Cantón Nobol, identify the most popular services among visitors, and examine areas for improvement in the local tourism sector. Qualitative and quantitative research is employed. The study sample includes tourists between the ages of 13 and 70 to ensure a diverse representation, while data collection is done through a digital survey using Google Forms. The results respond to the TES research project, "Tourism strategy of products and services for the strengthening of tourism micro-enterprises and SMEs in Nobol Canton". They help to have a complete vision of the perception of tourism and quality of life in Nobol Canton, pointing out both strengths and opportunities for improvement to consolidate its position as a desired tourist destination. Although Cantón Nobol already has a solid tourism base and well evaluated services, there are still areas with potential for growth and improvement within the regional tourism sector.
Tik Tok as a political communication tool in Jorge Yunda's campaign for mayor of Quito in Ecuador 2023
Authors: Lascano Cevallos Alexander Dario , Tualombo Rochina Silvia Valeria , Vargas Moreno David Antonio
Published: July 2024

The correct use to disseminate government plans in the social network Tik Tok generates an impact of influence that we will address in this research that focused on Ecuadorian politics specifically in the city of Quito, in which we analyzed the use of TikTok as a political communication tool in the campaign of Jorge Yunda for mayor during the campaign of January and February 2023. A qualitative methodology was applied, in which observation and interview techniques were developed, and a quantitative one, applying a survey to a non-probabilistic sample of young people between 18 and 29 years old in the city of Quito. The results highlight that Yunda's account focuses on political content, mixed with humor and history that crucially underlines the use of this social network as a political tool to build effective links between candidate and citizens, taking advantage of its ability to create shocking and easily consumed content, as well as the affinity that the politician has with the audiences, taking advantage of the duration of the videos that is crucial in the era of fast information and the short attention span of users.
The Development and Impact of a Blood Unity Application
Authors: Pushpalatha B. , Meghana D. , Bhargav Ch. , Raju Ch. Mahesh , Vinay Sai G. Harshith , Shalini G.
Published: July 2024

This research focuses on the development and impact of a Blood Unity Application. Blood shortage is still a major problem in the medical sector. Emergencies come as last minute requirements and are very crucial. Inadequate blood and compatability problems make it difficult to manage the blood supply effectively. Sometimes, a lack of awareness and communication causes those who might be eager to donate to be unaware of the efforts that are running. To avoid these challenges we have designed an app which acts as a bridge between the donors and the people in need. In this paper, we present an overview of a website and a mobile application designed for blood donation. It is a user- friendly application where we collaborate the donors and hospitals to the people in need. By creating this application, we can assure a safe and secure blood transfusion. Anyone in need of blood at any time can download this app right away and use it to locate nearby donors who have the necessary blood type. We make the donors contact information available through the app to all registered users, enabling them to get in touch with them directly in case of emergency. We have also made a website similar to the app to use through PCs or Laptops from anywhere and at anytime. The website was developed through HTML, CSS, Bootstrap at frontend and PHP, MYSQL at backend and Angular Java Script at control end. The app was developed using Apache Cordova.
Periodic Energy Optimization Using IOT and ML
Authors: P A Spoorthi , C Vidyashree
Published: July 2024

The rapid expansion of Internet of Things (IoT) applications across various sectors generates an enormous volume of continuous time-series data. However, transmitting this massive amount of sensor data from energy constrained IoT nodes poses a significant challenge. The continuous transmission of such data consumes vast amounts of energy.In this work, we present a solution to this problem by predicting the periodic behavior of sensor data through a higher-level view of continuous transmission data from nodes in IoT at server side. Our system is composed of an IoT sensor network and a data processing unit. The local sensor network: temperature and humidity data is collected using 4 different nodes, as well, which afterward this info is transferred into a data processing unit built on the Raspberry Pi device. We use the machine learning model Autoregressive Integrated Moving Average (ARIMA) on the processing unit. This model is then applied individually to the data from each of the four nodes, predicting processed sensor values in the future accurately. In short, after getting highly accurate prediction, then we settle down proper energy saving pattern which reduces the data transmission requirements hence results in energy saving pattern.By utilizing the predictive capabilities of the ARIMA model, we minimize the need for constant transmission of raw sensor data. Instead, we transmit only essential updates or deviations from the predicted values. This approach substantially reduces energy consumption by eliminating the transmission of redundant information. In summary, our project aims to overcome the energy limitations of IoT sensor nodes by leveraging predictive modelling techniques, specifically the ARIMA model. By accurately predicting periodic patterns in sensor data, we can optimize energy usage by transmitting only the necessary information, while still ensuring effective monitoring of temperature and humidity in the IoT network.
Oral Anti-Diabetic Semaglutide: A GLP-1 RA Peptide
Authors: Kahol Richa , Jain Anjali , Sharma Niti , Kumar Mishra Sunil
Published: July 2024

T2DM has emerged as a global disorder. Although there are many treatment options available for T2DM patients, still several patients complaint about inadequate blood sugar levels. Diabetes management is not limited to just lowering of blood glucose level, it needs a multifactorial approach in treatment. Glucagon- like peptide-1 receptor agonists (GLP-1RA) are a new category of T2DM drugs that acts on various targets such as body weight reduction, renal and cardiovascular benefits. Despite of being so beneficial the major drawback of semaglutide has been its subcutaneous route of administration. Majority of the patients are unable to continue semaglutide for long because of their reluctance towards daily injectable. To avoid this oral semaglutide is introduced. Oral semaglutide is a GLP- 1RA which is displays high glycaemic control. However, in order to increase its bioavailability, it needs to be co formulated with sodium N-(8-[2-hydroxybenzyol] amino) caprylate (SNAC). Oral semaglutide has gone through a very intense series of clinical trials known as, Peptide Innovation for Early Diabetes Treatment (PIONEER). These trials have established benefits of oral semaglutide regarding reduction in glycaemic levels and body weight. It is deemed to be fit for regular consumption. In this review we discuss many aspects of oral semaglutide such as, its chemical structure, route of administration, challenges associated with the oral form of semaglutide, dosage, mechanism of oral bioavailability, robust indications, its placement in the line of defence, drug- drug interaction, various clinical trials (Phase trials and PIONEER studies) including their results. It also summarizes the benefits of oral semaglutide beyond glycaemic control and some future scope of research in the field.
Transformative approaches to managing student unrest in a South African university
Authors: Gwama Unathi Mvuyisi
Published: July 2024

Higher education and training institutions in South Africa have experienced widespread student unrest and crises in recent years, particularly within universities. This issue has been attributed to strained relationships between students and university management. Therefore, it is imperative to address the conflict gap between students and management in order to promote peaceful university operations. This study employed qualitative research, utilising decoloniality theory and a transformative paradigm lens within a qualitative research approach and participatory research design. Data was collected through focus group discussions (FGDs), with participants selected using a homogeneous sampling technique. For this study, three management employees, three students (SRC members), three lecturers, and three security officers from the chosen university were selected as participants using the homogeneous sampling technique. Data analysis was conducted using Braun and Clarke's six-step thematic analysis. One of the key findings is that the lack of a proper structure to manage unrest and the failure to involve students in decision-making pose significant challenges in the management of student unrest. The potential solutions to these challenges include the establishment of appropriate structures, the involvement of stakeholders in decision-making processes, and the development of common ground among stakeholders. These solutions could effectively address the issue at hand. Furthermore, a major recommendation is to engage society in order to address student unrest comprehensively. The study concludes that applying principles of openness and integrity is crucial in building and maintaining trust among stakeholders, as trust has been identified as a significant factor in bridging the gap between them.
IMPLEMENTASI WEWENANG SATUAN POLISI PAMONG PRAJA (SATPOL PP) DALAM PENEGAKAN PERATURAN DAERAH DI KOTA SURABAYA
Authors: AL QINDI ALIF ERFIAN
Published: July 2024

Implementasi wewenang yang mengatur tentang satuan polisi pamong praja (satpol PP)  dalam menegakkan peraturan kota surabaya  bisa menjadi alternatif pemerintah daerah untuk mengatur warganya terutama di kota surabaya, dalam implementasi wewenang perda dilapangan ada beberapa faktor penghambat dalam menegakkan peraturan di kota surabaya salah satunya kesadaran masyarakat dan kualitas SDM yang ada di lapangan.  Tujuan penelitian ini yaitu untuk mengetahui seberapa jauh dan sukses implementasi kebijakan dalam mengatur warganya melalui satpol pp kota surabaya. Hasil penelitian ini menunjukkan bahwa pengimplementasian wewenang satpol pp di kota surabaya masih belum sempurna, hal ini di ukur dari teori edward III dalam dimensi komunikasi, sumber daya, disposisi, dan struktur birokrasi, dalam ke empat dimensi tersebut tiga diantaranya memiliki implementasi cukup baik.
COLLABORATIVE GOVERNANCE DALAM PENANGANAN STUNTING DI KELURAHAAN POCO MAL DI UPTD PUSKESMAS KOTA KECAMATAN LANGKE REMBONG
Authors: DAUR ALEXANDRA EFONSI , SUGIHARTO MULUS
Published: July 2024

Alexandra Efonsi Daur,19031063.fakultas ilmu sosiaal dan ilmu politik universitas wijaya putra Surabaya,agustus 2023. Collaborative Governance Dalam Penanganan Stunting Di Kelurahaan Poco Mal Di Uptd Puskesmas Kota Kecamatan Langke Rembong(studi kasus di Kelurahan Poco Mal,manggarai Nusa Tenggara Timur) .Dosen pembimbing Mulus Sugiharto, S.Sos., M.Si. Penelitian ini bertujuan untuk mengetahui kolaborasi para stakeholders yang terlibat dalam upaya percepatan penurunan stunting dikelurahan poco Mal. Jenis penelitian yang digunakan adalah kualitatif deskriptif. Landasan hukum yang digunakan adalah Peraturan Bupati Kabupaten Manggarai Nomor 12 Tahun 2022 tentang Percepatan Penurunan Stunting, Angka Kematian Ibu dan Angka Kematian Bayi di Kabupaten Manggarai. Hasil penelitian menunjukan bahwa penanganan stunting di Kabupaten Manggarai melibatkan multisektor . namun perlu adanya peningkatan kerjasama yang baik dalam menjalankan tanggung jawab serta proaktif untuk berkomunikasi dengan sector lain guna mempermudah dan memperlancar dalam proses penanganan stunting di kelurahan poco mal.adapun yang menghambat proses penanganan ini yaitu kurangnya kesadaran masyrakat tentang stunting dan bersifat masa bodoh akan tetapi pemerintah selalu berkunjung lansung ke Rumah yang terdampak stunting. berbagai hambatan ditemukan dalam pelaksanaanya diantaranya belum ada perjanjian tertulis ya ng mengikat para stakeholders yang mengakibatkan kemungkinan terputusnya kerja sama antar pemerintah kelurahan dengan sector-sektor lainya
Modeling Ionized Gas in the Small Magellanic Cloud: The Wolf–Rayet Nebula N76
Authors: Tarantino Elizabeth , Bolatto Alberto D. , Indebetouw Rémy , Rubio Mónica , Sandstrom Karin M. , Smith J.-D T. , Stapleton Daniel , Wolfire Mark
Published: July 2024

We present Cloudy modeling of infrared emission lines in the Wolf–Rayet (WR) nebula N76 caused by one of the most luminous and hottest WR stars in the low metallicity Small Magellanic Cloud. We use spatially resolved mid-infrared Spitzer/InfRared Spectrograph and far-infrared Herschel/PACS spectroscopy to establish the physical conditions of the ionized gas. The spatially resolved distribution of the emission allows us to constrain properties much more accurately than using spatially integrated quantities. We construct models with a range of constant hydrogen densities between nH = 4–10 cm−3 and a stellar wind-blown cavity of 10 pc, which reproduces the intensity and shape of most ionized gas emission lines, including the high ionization lines [O iv] and [Ne v], as well as [S iii], [S iv], [O iii], and [Ne iii]. Our models suggest that the majority of [Si ii] emission (91%) is produced at the edge of the H ii region around the transition between ionized and atomic gas while very little of the [C ii] (<5%) is associated with the ionized gas. The physical conditions of N76 are characterized by a hot HII region with a maximum electron temperature of T

e
∼ 24,000 K, electron densities that range from n

e
∼ 4 to 12 cm−3, and high ionization parameters of

log
(
U
)
∼
−
1.15

to
−

1.77
.

By analyzing a low-metallicity WR nebula with a single ionization source, this work gives valuable insights into the impact WR stars have on the galaxy-integrated ionized gas properties in nearby dwarf galaxies.
The Effects of Including Farside Observations on In Situ Predictions of Heliospheric Models
Authors: Knizhnik Kalman J. , Weberg Micah J. , Zaveri Ajeet Singh , Ugarte-Urra Ignacio , Wang Yi-Ming , Upton Lisa A. , Provornikova Elena
Published: July 2024

A significant challenge facing heliospheric models is the lack of full Sun observational coverage. The lack of information about the farside photospheric magnetic field necessitates the use of various techniques to approximate the structure and appearance of this field. However, a recently developed technique that uses He ii 304 Å emission observed by the Solar Terrestrial Relations Observatory (STEREO) enables developing a magnetic flux proxy by imaging of active regions on the far side of the Sun. Incorporating information about these active regions on the far side of the Sun may have the potential to drastically improve heliospheric models. In this work, we run multiple heliospheric models with and without farside information obtained from STEREO observations of He ii 304 Å emission and compare the predicted in situ measurements from the models with real in situ data from STEREO and Earth. We find that although there are noticeable quantitative differences between the in situ predictions from the two models, they are dwarfed by the overall disagreement between the heliospheric model and the actual in situ data. Nevertheless, our results indicate that active regions that significantly change the ratio of open-to-closed and open-to-total flux create the biggest change in the predicted in situ measurements.
Comprehensive Synthesis of Magnetic Tornado: Cospatial Incidence of Chromospheric Swirls and Extreme-ultraviolet Brightening
Authors: Kuniyoshi Hidetaka , Bose Souvik , Yokoyama Takaaki
Published: July 2024

Magnetic tornadoes, characterized as impulsive Alfvén waves initiated by photospheric vortices in intergranular lanes, are considered efficient energy channels to the corona. Despite their acknowledged importance for solar coronal heating, their observational counterparts from the corona have not been well understood. To address this issue, we use a radiative magnetohydrodynamic simulation of a coronal loop with footpoints rooted in the upper convection zone and synthesize the chromospheric and coronal emissions corresponding to a magnetic tornado. Considering Solar Dynamics Observatory/Atmospheric Imaging Assembly 171 Å and Solar Orbiter/Extreme Ultraviolet Imager 174 Å channels, our synthesis reveals that the coronal response to magnetic tornadoes can be observed as an EUV brightening of which the width is ∼2 Mm. This brightening is located above the synthesized chromospheric swirl observed in the Ca ii 8542 Å, Ca ii K, and Mg ii k lines, which can be detected by instruments such as the Swedish 1 m Solar Telescope/CRisp Imaging SpectroPolarimeter, Goode Solar Telescope/Fast Imaging Solar Spectrograph, and Interface Region Imaging Spectrograph. Considering the height correspondence of the synthesized brightening, magnetic tornadoes can be a mechanism for the small-scale EUV brightenings such as the solar “campfires.” Our findings indicate that coordinated observations encompassing the chromosphere to the corona are indispensable for comprehending the origin of coronal EUV brightenings.
The UN and NATO as the Main Pillars of the International Security Architecture with a Focus on the Middle East Region
Authors: Novotná-Šabacká Yvona
Published: July 2024

This study provides a summary overview of the creation and the activities of the international security architecture in the form of their two main pillars, i.e. the United Nations and the North Atlantic Treaty Organization in the Near and Middle East region. Within the framework of international security relations, this is a very unstable and conflictual region, where this instability has lasted practically since the establishment of the State of Israel in 1948. The global UN, its overall activity and importance, especially humanitarian and peace-building activities not only for the Near and Middle East region, is very beneficial, through out the Cold War period up to the present day. As a security organization, NATO is among the most important global actors influencing current international security relations. Through their activities, both of these organizations represent a essential means of ensuring world peace and security.
Extensive mycetoma in forearm, chest and neck due to Nocardia mexicana
Authors: Arenas Roberto , Damián-Magaña Erika J , Sandoval-Navarro Karla A , Torres-Bibiano Balfré , Romero-Navarrete Marina , Martínez-Chavarría Luary C , Xicohtencatl-Cortes Juan , Hernández-Castro Rigoberto
Published: July 2024

Introduction: Mycetoma is a chronic granulomatous inflammatory disease of the subcutaneous tissue, which affects deep structures and bone. Most cases of actinomycetoma are caused by members of the genus Nocardia.
Case presentation: Here we report the case of a 43-year-old male who presented a disseminated mycetoma on the forearm, chest and neck, characterized by enlarged and erythematous lesions through which seropurulent material drains, and numerous atrophic scars. Molecular identification was performed by 16S gene amplification and sequencing. Nocardia mexicana was identified with 100% identity. Trimethoprim-sulfamethoxazole, diaminodiphenyl sulfone and amikacin was a successful treatment after 6 months.
Conclusions: Nocardia mexicana is a rare organism that causes mycetoma. We report a case of extensive mycetoma on the forearm with spread to the neck and thorax associated with manipulation of the mouth of a calf.
Prevalence and associated factors of bacterial vaginosis among pregnant women in Hue, Vietnam
Authors: Nguyen Anh TC , Nguyen Na TL , Tran Trang TQ , Nguyen Tuyen T , Hoang Thu TA , Tran Linh M , Tran Khoi Tuan , Phan Thanh DC , Nguyen Xuan T , Le Tam M , Le An V , Salumets Andres , Mändar Reet
Published: July 2024

Introduction: Bacterial vaginosis (BV) is the most frequent vaginal infection affecting women of childbearing age worldwide. It is associated with significant adverse healthcare outcomes, especially during pregnancy. Although screening for BV could reduce potential pregnancy-related obstetric complications, there is no routine screening of pregnant women for BV in Vietnam. We aimed to identify the prevalence of BV among pregnant women and the associated factors in two tertiary hospitals in Hue, Vietnam.
Methodology: This cross-sectional descriptive study included 885 pregnant women in third trimester, who received routine antenatal care in the Hue Central Hospital and Hue University Hospital of Medicine and Pharmacy, Hue city, Thua Thien Hue province, Vietnam. Gram-stained vaginal smears were used for calculating the Nugent score and recording the fungal elements.
Results: In total, 435 (49.1%) women had a normal BV score, 352 (39.8%) had intermediate vaginal microbiota, and 98 (11.1%) had BV. Among the 98 women with BV, 71 (72.4%) also had fungal infection. There was a significant association of BV with discharge (p = 0.004) and abnormal cervix (p = 0.014). BV was significantly more frequent among the women who reported previous abortion or miscarriage (p = 0.007).
Conclusions: About a tenth of women in Thua Thien Hue province have BV in the third trimester of pregnancy being associated with previous adverse outcome. Discharge with fishy odour is still a characteristic feature among subtle clinical presentations of BV. Better awareness about this disease and routine test-and-treat management during pregnancy may improve pregnancy outcome.
Seroprevalence of transfusion-transmitted infections among blood donors in Makkah, Saudi Arabia
Authors: Minshawi Faisal , Abdulshakoor Asim A , Alwakil Emran M , Basfar Ghaiyda T , Kabrah Saeed , Aslam Akhmed , Almasmoum Hibah , Mujalli Abdulrahman , Moaminah Rabab H , Almoalad Ghadeer A , Alwadani Mohammed A , Alzahrani Mohammad G , Alsehemi Kholoud A , Refaat Bassem
Published: July 2024

Introduction: Blood donation is vital for healthcare; however, transfusion-transmitted infections (TTIs) pose a serious risk. This study investigated the seroprevalence of TTIs among Saudi blood donors.
Methodology: This retrospective study included male blood donors aged ≥ 18 years who donated blood at Al-Noor Specialist Hospital in Makkah from January 2017 to December 2022. The blood units were screened for hepatitis B surface antigen (HBsAg) and core antibodies (HBc-IgG), hepatitis C antibodies (HCV-Abs), syphilis, HIV-1 antigen/antibody (HIV-1 Ag/Ab), human T-lymphotropic virus 1, 2 (HTLV-1/2), and malaria.
Results: There were 40,287 donors with an average age of 44.33 ± 18.12 years, and 62.3% (n = 25103) were Saudis. The overall rate of TTIs seropositivity was 7.4% (n = 2953); HBc-IgG (6.1%; n = 2473) was the most common, followed by HCV-Abs (0.4%; n = 177), and syphilis (0.34%; n = 136). All cases were negative for malaria, whilst HIV and HTLV positive donors were 0.06% (n = 24) and 0.13% (n = 52), respectively. Syphilis was more prevalent among non-Saudis (0.24%; n = 83) than among Saudis (0.1%; n = 53), whereas anti-HBc antibodies seropositivity was significantly higher among Saudi (3.4%; n = 1373) than non-Saudi donors (2.7%; n = 1100).
Conclusions: Hepatitis B virus was the most frequently detected bloodborne pathogen, followed by hepatitis C virus and syphilis. Hepatitis B virus was also more prevalent among Saudi donors, whilst expatriates had higher rates of syphilis. Additional prospective multicenter studies are needed to accurately determine the prevalence of TTIs in Saudi Arabia.
The discovery and naming of the Sumatran Rhinoceros (Dicerorhinus sumatrensis) after 1793, with details of the Rhinoceros Sumatricus of Bertuch (1805) and Wilhelm (1808)
Authors: Rookmaaker Kees
Published: July 2024

There was a considerable gap of 21 years between the illustrated description of a specimen of the Sumatran Rhinoceros (Dicerorhinus sumatrensis) by William Bell in 1793 and the proposal to accept it as a named new species by Gotthelf Fischer in 1814. In the meantime some 17 authors reported the possibility that the animal should be regarded as a new species. Hitherto overlooked, the German writer Friedrich Justin Bertuch used a new name in the caption to a reproduction of Bell’s plate, asRhinoceros bicornis Sumatricus. This was published in 1805 in a second edition of his “Bilderbuch für Kinder”, a serial magazine aimed at young people. This work has an extremely complex bibliography through many re-issues and translations, which is only partly resolved. The same name in the combinationRhinoceros Sumatricuswas included by Gottlieb Tobias Wilhelm in a companion to the “Bilderbuch” available in 1808. The complicated circumstances of Bertuch’s proposal in 1805 and his unusual usage of a trinomen lead to the suggestion that his book might not be consistently binominal, making the name unavailable. The naming by Wilhelm in 1808 is straightforward and correct, henceRhinoceros sumatricusWilhelm, 1808 is an available name and a senior objective synonym ofRhinoceros sumatrensisG. Fischer, 1814. The International Code of Zoological Nomenclature allows the suggestion that Wilhelm’s name was anomen oblitum(forgotten name). The various plates of the rhinoceros found in the “Bilderbuch” by Bertuch and the “Unterhaltungen aus der Naturgeschichte” are figured and explained.
Spatial decoupling of taxon richness, phylogenetic diversity and threat status in the megagenus Erica (Ericaceae)
Authors: Pirie Michael D. , Bellstedt Dirk U. , Bouman Roderick W. , Fagúndez Jaime , Gehrke Berit , Kandziora Martha , Le Maitre Nicholas C. , Musker Seth D. , Newman Ethan , Nürk Nicolai M. , Oliver E. G. H. , Pipins Sebastian , van der Niet Timotheus , Forest Félix
Published: July 2024

Estimates of the number of vascular plant species currently under threat of extinction are shockingly high, with the highest extinction rates reported for narrow-range, woody plants, especially in biodiversity hotspots with Mediterranean and tropical climates. The large genus Erica is a prime example, as a large proportion of its 851 species, all shrubs or small trees, are endemic to the Cape Floristic Region (CFR) of South Africa. Almost two hundred are known to be threatened and a further hundred are ‘Data Deficient’. We need to target conservation efforts and research to fill the most problematic knowledge gaps. This can be especially challenging in large genera, such as Erica, with numerous threatened species that are closely related. One approach involves combining knowledge of phylogenetic diversity with that of IUCN threat status to identify the most Evolutionarily Distinct and Globally Endangered (EDGE) species. We present an expanded and improved phylogenetic hypothesis for Erica (representing 65% of described species diversity) and combine this with available threat and distribution data to identify species and geographic areas that could be targeted for conservation effort to maximise preservation of phylogenetic diversity (PD). The resulting 39 EDGE taxa include 35 from the CFR. A further 32 high PD, data deficient taxa are mostly from outside the CFR, reflecting the low proportion of assessed taxa outside South Africa. The most taxon-rich areas are found in the south-western CFR. They are not the most phylogenetically diverse, but do include the most threatened PD. These results can be cross-referenced to existing living and seed-banked ex situ collections and used to target new and updated threat assessments and conservation action.
Machine learning-based surrogates for eVTOL performance prediction and design optimization
Authors: Rao Jubilee Prasad , Chimata Sai Naveen
Published: July 2024

Predicting the performance of different electric vertical take-off and landing (eVTOL) vehicle designs is paramount to vehicle manufacturers and hobbyists. These vehicles' maximum flight time (endurance) and maximum flight distance (range) depend on design and operational parameters relating to their structure, propulsion system, payload, and mission profile. In recent years, sophisticated physics-based models have been developed to estimate and optimize their aerodynamic, propulsion, and electrical performance. Integrating and simulating those models can closely estimate a vehicle's endurance and range. However, this demands advanced knowledge of different subsystems utilized and extensive computational resources limiting the wide-scale utilization of such models. This paper showcases the development and implementation of a framework to train simpler machine learning-based surrogates. The surrogate models are trained on a limited number of eVTOL performance estimates generated by physics-based models and can mimic them accurately. Forty-seven thousand eVTOL vehicle designs were simulated to generate the training data for various machine-learning models. These include several decision tree models, K-nearest neighbor models, linear regression models, and a multi-perceptron neural network model. Vehicle design and operational parameters such as propeller size, payload mass, drag coefficient, velocity, and motor and battery parameters are used as features, and vehicle endurance and range estimates are used as targets. Compared to the alternative approaches, these surrogate models are computationally very efficient and easy to understand and use. Testing on hold-out datasets shows excellent performance, with multiple models having a mean average percentage error of less than 2% in estimating vehicle endurance and range.
Položaj naslonskega niza v vezniškem stavku v slovenski zloženi povedi
Authors: Gabrovšek Dejan
Published: July 2024

Članek se ukvarja s položajem naslonskega niza v vezniškem stavku v slovenski zloženi povedi. Mesto veznika definira kot ničto mesto na začetku stavka, naslonski niz pa stoji na prvem ali drugem mestu, torej takoj za veznikom ali za prvim stavčnim členom. Članek pokaže položaj naslonskega niza glede na skupine razmerij, v katerih se pojavlja, v prirednih razmerjih pa opiše še položaj naslonskega niza glede na število in ponavljanje udeležencev. Glavno vlogo pri položaju naslonskega niza imata razmerje med stavkoma in veznik.
The Overarching Cost of Beauty in Mauritania
Authors: Konin Melanie
Published: July 2024

This research paper outlines the risks women in Mauritania - including girls at the extremely young age of five years old - take to secure marriage and appear attractive to those who are male-identifying. Over time, the United States has become more inclusive with a broader spectrum of sizes that they carry in stores. However, not much long ago, the beauty standard in American society was to look as thin as possible (Wiseman et al., 1992). Girls in the United States would undergo dangerous diets, supplements, and bizarre exercises to stay thin, where in Mauritania, their beauty standard revolved around the complete opposite (Wiseman et al., 1992). Instead, girls in Mauritania grew up in environments where the standards of beauty perpetuated obesity. Mauritanian men claimed that skinny women looked like skeletons and they’d prefer not to sleep with “a bag of bones” (Esposito, 2022). Obesity in Mauritania was seen as a status symbol as many people believed larger women were wealthy because their husband had the financial means to gorge her on copious amounts of food. Therefore, women who were looking for potential suitors would try to become as large as possible to appear desirable to other men.
Global Medical Supply Inequities
Authors: Sunilkumar Shruthi , Hicks Helen , Suresh Smriti
Published: July 2024

The global issue of medical supply inequity exists as some countries have excess medical supplies, which leads to large amounts of medical supply waste resulting in both economical and environmental harm. However, many countries face the opposite issue and instead have a shortage of necessary, life-saving medical supplies. The duality of the issue is a harsh and widespread reality throughout the world. For example, the United States generates about 4.7 million pounds of medical waste yearly (Zygourakis et al., 2015; Thiel et al., 2020). In contrast, India, especially during the COVID-19 epidemic, faced a massive shortage of essential equipment like N-95 respirators, face shields, as well as ventilators. To reduce the worldwide inequities that arise due to the imbalance of medical supplies, Blueprints for Pangaea (B4P), a medical surplus recovery organization was founded. B4P, headquartered at the University of Michigan in Ann Arbor, redistributes unused medical supplies to places in need both locally and internationally, effectively reducing medical supply inequities one shipment at a time. This paper aims to explore the key components and global dynamics contributing to medical waste and to consider B4P as a potential model for addressing this problem.
A story of entanglement between Indonesian national heroes, museums, and decolonization
Authors: Arainikasih Ajeng Ayu
Published: July 2024

Sultan Hasanuddin of South Sulawesi (1631-1670), Javanese Prince Diponegoro (1785-1855), and Teuku Umar of Aceh (1854-1899) were all acknowledged in 1973 by the Indonesian government as National Heroes for their resistance against the Dutch colonial power. This article discusses how their stories and belongings – exhibited in museums – intertwine with museum decolonization. The focus of this article relies on research in province museums in Makassar, Jakarta, and Banda Aceh. They were all established in colonial times and are all in some way related to the three heroes. These examples show how the decolonization of Indonesian museums is entangled with changing political regimes.
Indigenous knowledge and scientific collections: Collaborative research with the Ka’apor Indigenous people
Authors: López-Garcés Claudia Leonor , Françozo Mariana , Ka’apor Valdemar , Ka’apor Irakadju , Tembé Rosilene , Ka’apor Pina Irã , Ka’apor Pina Ité , Ka’apor Ximorã , Ka’apor Wa’i
Published: July 2024

This article reflects on the relationship between Indigenous knowledge and scientific collections from the perspective of a collaborative research experience between the Goeldi Museum (Belém, Brazil), Leiden University and the Ka’apor Indigenous people who live in the Alto Turiaçu Indigenous Land – Maranhão (Brazil). We start with a visit to the Goeldi Museum’s scientific collections in September 2022, as part of the BRASILIAE research project, which prompted memory exercises and reflections on Ka’apor knowledge. We will also reflect on the Ka’apor’s own ways of creating and transmitting knowledge, encouraging the participation of women in reflecting on Indigenous knowledge and their role in creating and transmitting knowledge.
La littérature comme expérience intérieure chez Yannick Haenel, Sylvie Germain, Pierre Michon et Claude Louis-Combet
Authors: Bonord Aude
Published: July 2024

Contre toute attente dans une société déchristianisée, de nombreux auteurs actuels décrivent la littérature comme une expérience spirituelle. Ils se réfèrent certes à des modèles littéraires mais aussi à des modèles chrétiens comme les vies de saints ou les écrits mystiques, sans pour autant se définir en écrivains catholiques. Même s’ils les déplacent ou les détournent, le paradoxe demeure, tant ces référents sont décalés par rapport à leur époque, et parfois à leur croyance. Nous tenterons de comprendre pourquoi l’expérience mystique constitue le point d’ancrage de la réflexion d’auteurs très différents sur leur propre expérience d’écriture. Que nous apprend ce curieux point commun sur la façon dont les auteurs du xxie siècle se sont réappropriés la figure désacralisée de l’auteur et ont pris acte de la relativisation de la place de l’intellectuel dans la société ? Comment articulent-ils cette expérience des limites avec la conscience affirmée de leur insignifiance ?
« Je devrai de cette mort transformer l’expérience ». L’expérience du deuil comme expérience extrême dans Thésée, sa vie nouvelle de Camille de Toledo
Authors: Jderu  Despina
Published: July 2024

Récit de deuil novateur à plus d’un titre, exploitant les ombres et l’atrocité de l’expérience du deuil, Thésée, sa vie nouvelle de Camille de Toledo livre l’interrogation identitaire d’un narrateur en proie aux ténèbres de son passé par un défi impressionnant des conventions du récit de deuil contemporain. Cet article propose une lecture qui allie la philosophie et la théorie littéraire ouvrant à une mise en lumière de l’événement du deuil qui impose au narrateur une réaction inédite l’incitant à rejeter son deuil, à inhiber sa mémoire, à oublier son passé et à reformuler son identité. Notre réflexion s’attache à formuler une interrogation narratologique de l’expérience de l’écriture qui côtoie l’événement de la perte et l’expérience du deuil en dressant une image problématique voire paradoxale du récit de deuil. En même temps, elle suit de près le parcours du narrateur de la négation du deuil et du désir d’oubli à l’impératif du souvenir et du retour en arrière afin de traverser ses pertes tout en mettant en relief une expérience extrême du deuil. Finalement, c’est sur ses ambitions et ses particularités que cet article s’interroge.
L’expérience (post)coloniale dans la littérature française contemporaine : détail, sujet, bibliothèque commune (à partir des Années d’Annie Ernaux)
Authors: Achille Étienne , Panaïté Oana
Published: July 2024

L’analyse proposée dans cet article invite à repenser la place du (post)colonial dans le récit contemporain à travers la mise en évidence du travail sous-jacent mais continu du détail colonial dans Les Années (2008) d’Annie Ernaux. S’appuyant sur cet exemple représentatif d’un phénomène aussi diffus que conséquent, l’article vise à transcender les frontières disciplinaires et à réorienter l’approche critique de la production romanesque contemporaine vers l’horizon d’une « bibliothèque commune » à partir de trois postulats : 1) le sujet postcolonial – en tant que matière à réflexion littéraire et sujet ontologique né d’une histoire commune – est non seulement légitime mais indispensable à tout projet de compréhension, d’interprétation et d’évaluation d’une littérature contemporaine travaillée par les résonances (infra)discursives d’un débat public dans lequel la question de la mémoire de l’empire resurgit avec force depuis le tournant du millénaire ; 2) il existe un besoin urgent de mise en relation du travail des écrivain.e.s catégorisé.e.s comme « postcoloniaux » ou « intrangers/intrangères », d’une part, avec la production hexagonale, c’est-à-dire « blanche », de l’autre ; 3) ainsi, l’expérience postcoloniale de notre époque nous somme, critiques littéraires, d’intégrer l’étude des deux bibliothèques – l’une, « française », l’autre, « francophone » – qui ont jusqu’à présent coexisté sans se rejoindre, engendrant deux histoires parallèles de la littérature et des modèles interprétatifs distincts, malgré leur synchronie et un socle conceptuel partagé.