bluuebunny/crossref_metadata_2025_split huggingface dataset:
ANALISIS PROFIL SISWA SMU TERHADAP PEMAHAMAN KONSEP JARAK TITIK KE BIDANG DITINJAU DARI PERSPEKTIF PERBEDAAN GENDER
Authors: Suprianto Suprianto 
Published: November 2024

Penelitian ini bertujuan untuk mendeskripsikan profile secara alamiah siswa SMU terkait dengan pemahaman konsep jarak dari titik ke bidang. Metode penelitian berjenis kualitatif, dengan menggunakan metode triangulasi waktu dan sumber. Subyek penelitiannya adalah siswa SMU, 1 siswa laki-laki dan 1 siswi perempuan. Kode subyek penelitian siswa laki-laki (SL), dan subyek siswa perempuan (SP). Kajian analisis pemahaman konsep jarak titik ke bidang meliputi: (1) Aspek pengertian; (2) Aspek representasi; (3) Aspek contoh dan bukan contoh; (4) Aspek menghitung jarak. Hasil penelitian dari 4 aspek kajian diperoleh informasi yaitu siswa laki-laki cenderung lebih baik dari aspek reprensentasi, sedangkan untuk aspek pengertian, aspek contoh-bukan contoh, dan aspek menghitung, tidak ada perbedaan nyata antara siswa laki-laki dan perempuan.
This study aims to describe the natural profile of high school students related to understanding the concept of distance from a point to a plane. The research method is qualitative, using time and source triangulation methods. The research subjects were high school students, 1 male student and 1 female student. The research subjects code were male students (SL), and female student subjects (SP). The analysis study of understanding the concept of point-to-plane distance includes: (1) Aspects of understanding; (2) Aspect of representation; (3) Aspects of examples and non-examples; (4) The aspect of calculating distance. The results of the research from 4 aspects of the study obtained information that male students tended to be better in terms of representation, while for aspects of understanding, aspects of examples-not examples, and aspects of counting, there was no significant difference between male and female students.
Heat Transfer Enhancement By Using Different Patterns Of The Receiver Circumference Of The Locally Fabricated
Authors: Muhammad Khalid Abdullah , Mahmood Yaseen H. , Zidane Othman K. 
Published: November 2024

العمل الحالي تمت محاولة تجريبية لتحسين الاداء الحراري للجامع الشمسي نوع حوض مكافئ باستخدام اربعة انواع مختلفة من المحيط بالمستقبل. عند سرعة تدفق كتلي L/min1، استخدمنا ماء منزوع الايونات كمائع ناقل للحرارة ونظام تتبع احادي المحور( شمال-جنوب). الاختبار التجريبي تم في مدينة الموصل-العراق خلال ايام مختارة من الاشهر (أيار، حزيران، تموز) سنة 2023 خلال وقت النهار (9 صباحاً – 4 مساءاً). بينت النتائج عندما يكون الهواء هو محيط بالمستقبل كانت الطاقة الحرارية المفيدة اعلى قيمة لها تساوي watt557 واقل قيمة watt69 وبمعدل 335watt. عند استخدام الزجاج المطلي بالكروم الاسود مع ليف المنيوم ويكون مفرغ من الهواء كانت الطاقة الحرارية المفيدة اعلى قيمة لها تساوي 1247watt واقل قيمة 146watt وبمعدل 335watt. عند استخدام الزجاج المطلي بالكروم الاسود مع مادة القير كانت الطاقة الحرارية المفيدة اعلى قيمة لها تساوي 620watt واقل قيمة 69watt وبمعدل 324watt. عند استخدام زجاج ابيض شفاف كانت الطاقة الحرارية المفيدة اعلى قيمة لها تساوي 759wattواقل قيمة 97wattوبمعدل 427427watt. هذهِ النتائج تبين، استخدام الزجاج المطلي بالكروم الاسود مع ليف المنيوم ويكون مفرغ من الهواء يعطي افضل اداء حراري بالمقارنة مع الانواع الاخرة من المحيط بالمستقبل المستخدمة في هذا العمل.
Finite Dimensional Convex Fuzzy Normed Space and Its Basic Properties
Authors: Daher Hawraa Yousif , Kider Jehad R. 
Published: November 2024

هنا في هذه البحث تعريف القيمة المطلقة الضبابية المحدبة تم استدعائه مع مثال يوضح الوجود لهذا الفضاء.السبب الرئيس من وراء استخدام تعريف القيمة المطلقة الضبابية المحدبة بدلا من تعريف القيمة المطلقة هو إن التعريف الأساسي في هذا البحث لا يصح مع تعريف القيمة المطلقة. بعد ذلك التعريف الأساسي والذي هو تعريف فضاء القياس الضبابي المحدب تم استدعائه مع مثال يوضح الوجود لهذا الفضاء. التعاريف الأخرى والمبرهنات تم استدعائها والتي سوف تستخدم لاحقا في فقرة النتائج الأساسية مثلا دالة فضاء القياس الضبابي هي دالة مستمرة ضبابيا محدبة. لذا سيكون هدفنا الأساسي في فقرة النتائج والاستنتاجات هو برهان خواص لفضاء القياس الضبابي المحدب المنتهي البعد والتي هي غير متحققة في فضاء القياس الضبابي المحدب وعليه ستكون الفقرة الأخيرة من هذا البحث النتائج التالية مع البراهين إذا كان فضاء جزئي من فضاء القياس المحدب وبعد منتهي عندئذ يكون فضاء جزئي كامل ضبابي محدب. كذلك إذا كان فضاء جزئي مغلق ضبابي محدب ومقيد ضبابي محدب من فضاء القياس الضبابي المحدب منهي البعد عندئذ يكون متراص ضبابي محدب. بالإضافة إلى إذا كان فضاء متجهات منتهي البعد عندئذ يوجد قياس ضبابي وحيد معرف عليه. وأخيرا إذا كان ={: the convex fuzzy norm of belongs to (0, 1] } هو فضاء مغلق ضبابي محدب في ومتراص ضبابي
Approach to Exploration Risk Analysis
Authors: Cairns R. J. R. 
Published: November 2024

E&P Exchange
Explorers have to live with uncertainty; decision makers have to cope with it. The problem is how to use the information available to make rational and consistent decisions about exploration opportunities while taking uncertainty or risk into account. Conventional methods essentially rely on quantifying risk in the form of a probability to generate expected or risk-weighted outcomes. The underlying and crucial weakness of that stochastic approach is the inability to ascribe probabilities with the required degree of precision.
For any exploration opportunity, the basic information on which the decision has to be made comprises the following.
1. The size of the prize (i.e., the commercial value of success).
2. The entry fee or cost to failure (i.e., the expense incurred when the exploration endeavor is terminated).
3. The explorer or exploration group's technical evaluation of the play.
In the method given here, in addition to preparing a detailed review, the explorer is asked to rank each element of the play on a qualitative scale from A to D, with A representing those elements (e.g., a seal) in which the explorer has a high degree of confidence and D representing those (e.g., migration) in which the explorer has significant doubt or, perhaps, no information (Ref. 1 provides more detail). With the usual four elements (i.e., source, reservoir, trap, and seal), 35 possible outcomes exist that range from AAAA to DDDD, with order not considered important. Bearing in mind that only one element needs to fail for the exploration play to be a failure, no matter how good the other elements are, any play containing a D (because of significant doubt rather than ignorance) is not worth pursuing. In that case, the number of outcomes decreases to 15. If the requirement is at least one A and no D's, there are only 10 outcomes. This is the most significant departure from the conventional analysis. The point to appreciate is that a prospect ranked ABBB could, under the conventional method, have the same risk as one ranked AAAD. Which would you rather drill?
Outsourcing Engineering Services: The Business Side of the Business
Authors: Truman R. B. 
Published: November 2024

Management
Summary
This paper provides guidelines for identifying, evaluating, and selecting the appropriate type of outsourcing personnel and estimating the costs associated with use of these resources. A description of available personnel resources (consulting companies, service companies, contractors, and semiretired) is provided along with their applicability to and usefulness in fulfilling outsourcing engineering requirements. Each of these classes of personnel also commands a different price. in the marketplace. A simple means of estimating these costs is provided. The rationale for these costs is developed and presented.
The information presented is useful for all petroleum company managers involved with outsourcing engineering services. It will provide management with the guidelines for selecting a service provider that fits their needs. The methods presented for estimating costs will assist planning and budgeting of outsourcing expenses.
As oil and gas companies downsize, many personnel have become consultants or contract-service providers to the petroleum companies. This paper will provide these people with guidelines for positioning themselves in the market. In addition, it also provides a method of determining their true costs. The paper does not discuss the correct pay for full-time employees. It will discuss what a petroleum company should expect to pay and what the service provider should expect to receive on the basis of the base salary of a full-time employee for the equivalent job within a petroleum company.
Progressive histological and behavioral deterioration of a novel mouse model of secondary hydrocephalus after subarachnoid hemorrhage
Authors: Deng Xuehai , Ding Jianlin , Liu Chang , Wang Zhong , Wang Junchi , Duan Qiyue , Li Weida , Chen Xinlong , Tang Xiaoping , Zhao Long 
Published: November 2024

Abstract

Hydrocephalus commonly occurs after subarachnoid hemorrhage (SAH) and is associated with increased morbidity and disability in patients with SAH. Choroid plexus cerebrospinal fluid (CSF) hypersecretion, obliterative arachnoiditis occluding the arachnoid villi, channel transporter protein dysfunction of ependymal cells, lymphatic obstruction, subarachnoid fibrosis, and glymphatic system injury are considered the main pathological mechanisms of hydrocephalus after SAH. Although the mechanisms of hydrocephalus after SAH are increasingly being revealed, the clinical prognosis of SAH still has not improved significantly. Further research on SAH is needed to reveal the underlying mechanisms of hydrocephalus and develop translatable therapies. A model that can stably mimic the histopathological and neuroethological features of hydrocephalus is critical for animal experiments. There have been fewer animal studies on hydrocephalus after SAH than on other stroke subtypes. The development of a reproducible and effective model of hydrocephalus after SAH is essential. In this study, we establish a mouse model of SAH that stably mimics brain injury and hydrocephalus after SAH through injections of autologous blood into the cisterna magna via different methods and characterize the model in terms of neurological behavior, histology, imaging, neuronal damage, and white matter damage.
Estimating Weightage and Prioritizing Major Domains of Inclusive Education Assessment Framework using Analytical Hierarchy Process
Authors: KUMAR UMESH , Banerji Haimanti 
Published: November 2024

Abstract

Inclusive education, imperative globally, addresses the challenges faced by a substantial population with disabilities. The principles of human factor engineering, centered on creating a holistic, safe, and sustainable environment, directly align with mainstreaming persons with disabilities. Quality education, a vital aspect of sustainable development goals, enhances societal resilience. In India, the absence of facilities, inclusive infrastructure, and a barrier-free environment hampers inclusive school achievement. This study contributes to an ongoing investigation, creating an assessment framework for successful inclusive education in Delhi's elementary schools. After consensus analysis with 25 experts through two rounds of fuzzy Delphi, 33 assessment indicators were derived across 7 domains. Indicators are previously prioritized by multi-criteria decision making (MCDM) methods [technique for order preference by similarity to ideal solution (TOPSIS), gray relational analysis (GRA), relative to an identified distribution integral transformation (RIDIT)], this research now aims to prioritize and assign weights to the seven major domains using the analytical hierarchy process (AHP). A paper-based survey gathered 71 responses from educational professionals. Results highlight the highest weightage for "availability of appropriate resources (21.4%)" and the lowest for "teacher's Attitude (7.9%)". Future work involves developing an assessment framework for effective inclusive education, utilizing the research's priorities and weights to enhance budgeting, strategic planning, and policymaking for inclusive schools in India.
Shortest path planning and dynamic rescue forces dispatching for urban flood disasters
Authors: LIANG Jun , YANG Lili , ZHANG Zongjia 
Published: November 2024

Abstract

The impact of Urban flood is expanding as global climate change intensifies and extreme weather events increase. It not only poses a threat to the safety of citizens, but also has adverse impacts on the infrastructure and economic development of cities. In this paper, a two-stage modelling approach for shortest path planning and dynamic dispatching of rescue forces (firefighters and fire engines) is proposed for urban flood caused by extreme heavy rainfall. The first stage is to acquire the worst-case optimal travel times from fire stations to local flooding sites. A path selection model for rescue vehicles in a flood is developed and a customized A* algorithm with high search efficiency is created. In addition, a preference-based customized A* algorithm that takes into account travel path preferences is also designed to select paths that consider driver preferences. The second stage is to dynamically dispatch rescue forces to flooded locations. The demand for firefighters at each flood location is estimated based on the population density and the detected real-time flood depth. The travel times obtained in the first stage are used as inputs to a bi-objective dynamic dispatch model, which innovatively incorporates real-time flood monitoring data to make emergency dispatch responses accordingly. This paper jointly considers the path planning and rescue force dispatching, providing rapid auxiliary flood response support for decision makers.
A Comparative Study on Complete and Partial Slot Filling in Automotive Chassis Welding for Fatigue Life Enhancement
Authors: Emon Sazzad Hossain , Nellikode Savyasachi , Lee Jeong Hoon , Kim Myung Hyun , Ku Namkug , Park Si Young , Kim Daewon , Park Yeong-Do 
Published: November 2024

Abstract

The structural components of an automotive chassis, including critical elements like the frame and cross-members, must possess high strength to distribute and support the vehicle's load during operation effectively. In chassis manufacturing, slot welding has proven to be an effective method for improving support and durability under cyclical loading conditions. However, the absence of standardized guidelines for slot-filling during chassis welding poses a significant challenge, particularly concerning the fatigue life of components in the automotive industry. In this study, three different slot geometries were employed and welded by adjusting robotic programming to achieve complete filling (CF) or partial filling (PF) of the slots to improve fatigue life. A hot rolled 590 MPa steel sheet used for automotive applications with a cold metal transfer (CMT) technique was adopted to weld the samples. Digital image correlation (DIC) was conducted to identify stress concentration and the crack propagation path during the tensile loading of the sample. The fatigue crack initiation showed a location similar to the highest stress concentration area, as revealed by DIC. Additionally, an infrared camera was utilized during welding to monitor temperature variations, providing insights into the thermal aspects of each welding condition. The study revealed that higher effective weld width (Weff) in the PF sample enhanced the tensile fatigue life by reducing stress concentration. However, the cross-tensile fatigue properties of the CF sample exhibited a longer fatigue life due to a larger weld size and associated weld width.
Occurrence and human exposure assessment of per- and polyfluoroalkyl substances in ambient river and ground/drinking water around a closed fluorochemical production plant in China
Authors: Xu Chunyan , Yang Yijing , Ling Haibo , Yi Chuan , Zhang Xiangpu , Zhang Ruowen 
Published: November 2024

Abstract

Studies have demonstrated that point source emissions constitute the main direct source of PFASs in water. However, if production/usage and emission from a specific point are stopped, does the point source still present a threat to surrounding waters? In this study, the occurrence and potential human exposure to 17 PFASs in the surrounding ambient river and ground/drinking water within a 13 km around the facility were assessed. Of the 17 PFASs analyzed, 11 were frequently detected in river and groundwater samples, with perfluorobutane sulfonate (PFBS) (36.8−11462.9 ng/L), perfluorobutyric acid (PFBA) (below the detection limit (BDL)−4789.8 ng/L) and perfluorohexane sulfonate (PFHxS) (3.3−3549.0 ng/L) exhibiting the highest concentrations. Prevalence of short-chain PFASs was observed in both river and groundwater. The spatial distribution pattern showed that locations near the facility exhibited higher PFASs concentrations. The seasonal distribution pattern indicated that the PFASs concentration in river water during the wet season was higher than that during the dry season. However, the seasonal distribution in groundwater was unexpectedly the opposite to that in river water. Nevertheless, the major health risk of PFASs is primarily attributed to the presence of perfluorooctane sulfonate (PFOS) and perfluorooctanoic acid (PFOA) with maximum hazard quotients of 6.9 × 102 and 1.0 × 103 and 2.4 and 3.6 for adults and toddlers, respectively. Thus, the potential threat of the closed fluorochemical manufacturing plant to the surrounding waters cannot be ignored.
Salt tolerance performance and associated gene analysis of three tilapia species (strains)
Authors: Yu Jie , Li Dayu , Zhu Jinglin , Zou Zhiying , Xiao Wei , Chen Binglin , Yang Hong 
Published: November 2024

Abstract

The adaptation of fish to salinity is related to a series of life activities such as fish survival, growth, and reproduction. Tilapia is considered to be an euryhaline fish. In the present study, we comparatively analyzed the salt tolerance of three tilapia species (strains) representative in Chinese aquaculture, using 60 days’ growth experiments followed by examination of blood physiological and biochemical indicators, and expression of genes associated with salt tolerance and growth. In this study, the tilapia can grow well in saltwater with salinity up to 25‰ after domestication. Among them, the weight gain rate of the genetically improved farmed tilapia (Oreochromis niloticus, GIFT) in the saltwater group was the highest, reaching 189.7%, which was higher than that in freshwater group, and the same was true for Blue tilapia (Oreochromis aureus, OA), and only the weight gain rate of the Nile tilapia Egypt strain (Oreochromis niloticus, ON) freshwater group is higher than that in the saltwater group. However, the survival of all three tilapia species (strains) in saltwater decreased, with the OA being the highest and the GIFT being the lowest. The results of blood biochemical analysis showed that the nutrient consumption and organ damage of the three tilapia species (strains) were different when they were subjected to long-term salinity stress. The results of related gene expression supported the above conclusions. Our study provides an improved understanding of salt tolerance in tilapia and breeding of salt-tolerant tilapia species.
DysUFMylation of SREBP1 promotes the progression of hepatocellular carcinoma by reprogramming lipid metabolism
Authors: Yi Yong , Gao Xukang , xu min , Han Zeping , Wang Zhutao , Sun Guoqiang , Xiao Hao , Zhang Dai , Qiu Shuang , Ren Ning , zhou chenhao 
Published: November 2024

Abstract

SREBP1 (sterol regulatory element-binding protein 1), a master regulator involved in lipogenesis, is highly expressed in tumors. SREBP1 is regulated by posttranslational modification, such as ubiquitination, the mechanism by which it maintains high levels in tumors remains unclear. Here, we report that SREBP1 is a target of UFMylation. UFMylation of SREBP1 decreases its stability by synergizing with its ubiquitination. Knockdown of UFL1 (UFM1 specific ligase 1) or DDRGK1 (DDRGK domain containing 1), the crucial regulator of UFMylation, increases SREBP1 stability and in turn promotes HCC (hepatocellular carcinoma) progression. Clinically, UFL1 and DDRGK1 expression are decreased and negatively correlated with the level of SREBP1 in HCC. Moreover, we found that fatostatin, a specific inhibitor of SREBP1, can improve the efficacy of lenvatinib. Our findings revealed that UFMylation is a vital posttranslational modification for the regulation of SREBP1 and may serve as a new therapeutic target in cancer.
Bioinformatics analysis combined with whole transcriptome sequencing to explore key genes and regulatory mechanisms of acute type A aortic dissection
Authors: Yang Libin , Yang Xu , Xie Linze , Zhou Xiaojuan , Gong Hao , Yang Peng 
Published: November 2024

Abstract

Traditional treatments for acute type A aortic dissection (ATAAD) are ineffective, and its mechanisms are unclear. Whole transcriptome sequencing of ATAAD and healthy control (HC) aortic tissues identified differentially expressed mRNAs (DE-mRNAs), miRNAs, long non-coding RNAs (lncRNAs), and circular RNAs (circRNAs). Target genes were determined by intersecting DE-mRNAs with ATAAD-related genes. Key genes were analyzed using protein-protein interaction (PPI) analysis, machine learning, and various functional analyses including gene set enrichment analysis (GSEA), Ingenuity Pathway Analysis (IPA), and immune cell infiltration analysis. Regulatory networks and potential drugs targeting key genes were also explored. Out of 1,662 DE-mRNAs and 520 module genes, 177 target genes related to hypoxia response and energy metabolism were identified. Key genes GPD1L, PFKFB4, and PKM were found, with PKM involved in the hypoxia-inducible factor 1-alpha (HIF-1α) signaling pathway, which is crucial for ATAAD angiogenesis. Hub miRNAs hsa-miR-224-3p and hsa-miR-199b-5p, and C15orf56 were noted for their regulatory roles. Phosphoaminophosphonic Acid-Adenylate Ester could be a potential drug for targeting PFKFB4. GPD1L, PFKFB4, and PKM are key genes, with PKM significantly influencing ATAAD angiogenesis through the HIF-1α pathway.
A rare case report of an adult with intraspinal gouty stones and concurrent knee joint involvement
Authors: Cao Bo , Wang Jinlong 
Published: November 2024

Abstract

Introduction
Gout usually manifests as acute inflammatory arthritis affecting the peripheral joints, but spinal gout, especially that caused by tophi in the spinal canal, is very rare. Patients with spinal gout often present with nonspecific symptoms that mimic other spinal lesions, posing a challenge for diagnosis. This case report describes the unusual manifestation of tophi in the spinal canal and the gout in the knee, highlighting the complexity of treatment and the necessity of timely diagnosis and intervention.
Case presentation
A 22-year-old male with a history of hyperuricaemia presented with low back pain and radicular symptoms in the right lower extremity. Magnetic resonance imaging (MRI) and X-ray imaging revealed lumbar spinal stenosis and a mass at the L5/S1 level. The patient underwent surgical resection of the lesion in the spinal canal, and the intraoperative results confirmed the presence of monosodium urate (MSU) crystals. Meanwhile, the patient experienced severe gout in the knee, with manifestations of severe pain, swelling, and limited mobility. The patient's condition gradually improved after treatment with arthroscopic knee surgery and nonsteroidal anti-inflammatory drugs (NSAIDs). Pathological examination of the resected tissues confirmed a diagnosis of spinal and knee gout.
Conclusion
This case highlights the diagnostic challenge of treating spinal gout, especially when it manifests as tophi in the spinal canal. The postoperative risk of gout in knee joints makes treatment more complicated. Early identification and multidisciplinary treatment are key to optimizing the therapeutic effect. This case emphasizes the importance of comprehensive uric acid-lowering treatment and vigilant postoperative monitoring for preventing and controlling any complications of systemic gout.