bluuebunny/crossref_metadata_2025_split huggingface dataset:
Research on the relationship between government subsidies, R&D investment and high-quality development of manufacturing industry
Authors: Guan Yu 
Published: December 2022

Abstract
Taking the mixed cross-sectional data of large and medium-sized industrial enterprises in Shanghai from 2014 to 2021 as the research sample, this paper empirically analyses the impact of government subsidies and R&D investment on the high-quality development of the manufacturing industry. First, the quantile regression model is established to analyse the relationship among the three factors, and the asymmetric linear loss function is introduced to obtain the point estimation of quantile. According to the Moivre–Laplace limit theorem, the asymptotic distribution is obtained; the sample quantile function is calculated and the fitting residual of quantile regression is used to estimate the asymptotic covariance matrix. The model was tested by goodness-of-fit criterion; it can more comprehensively describe the characteristics of distribution, so as to get a comprehensive conclusion. The experimental results show that: with increase of the quantile, the advantage gradually increases. Medium-sized enterprises have a less significant ‘inverted U’ relationship at 0.8, while large enterprises have a more significant ‘U’ relationship at 0.2–0.5. It can effectively reduce the estimation deviation and reduce the root mean squared error, so as to improve the estimation accuracy.
Non-Trivial Universes and Sequences of Universes
Authors: Coghetto Roland 
Published: December 2022

Summary
Universe is a concept which is present from the beginning of the creation of the Mizar Mathematical Library (MML) in several forms (Universe, Universe_closure, UNIVERSE) [25], then later as the_universe_of, [33], and recently with the definition GrothendieckUniverse [26], [11], [11]. These definitions are useful in many articles [28, 33, 8, 35], [19, 32, 31, 15, 6], but also [34, 12, 20, 22, 21], [27, 2, 3, 23, 16, 7, 4, 5].
In this paper, using the Mizar system [9] [10], we trivially show that Grothendieck’s definition of Universe as defined in [26], coincides with the original definition of Universe defined by Artin, Grothendieck, and Verdier (Chapitre 0 Univers et Appendice “Univers” (par N. Bourbaki) de l’Exposé I. “PREFAISCE-AUX”) [1], and how the different definitions of MML concerning universes are related. We also show that the definition of Universe introduced by Mac Lane ([18]) is compatible with the MML’s definition.
Although a universe may be empty, we consider the properties of non-empty universes, completing the properties proved in [25].
We introduce the notion of “trivial” and “non-trivial” Universes, depending on whether or not they contain the set ω (NAT), following the notion of Robert M. Solovay2. The following result links the universes U
0 (FinSETS) and U
1 (SETS):

Grothendieck

Universe

ω
=
Grothendieck

Universe

U

0

=

U

1

{\rm{Grothendieck}}\,{\rm{Universe}}\,\omega = {\rm{Grothendieck}}\,{\rm{Universe}}\,{{\bf{U}}_0} = {{\bf{U}}_1}

Before turning to the last section, we establish some trivial propositions allowing the construction of sets outside the considered universe.
The last section is devoted to the construction, in Tarski-Grothendieck, of a tower of universes indexed by the ordinal numbers (See 8. Examples, Grothendieck universe, ncatlab.org [24]).
Grothendieck’s universe is referenced in current works: “Assuming the existence of a sufficient supply of (Grothendieck) univers”, Jacob Lurie in “Higher Topos Theory” [17], “Annexe B – Some results on Grothendieck universes”, Olivia Caramello and Riccardo Zanfa in “Relative topos theory via stacks” [13], “Remark 1.1.5 (quoting Michael Shulman [30])”, Emily Riehl in “Category theory in Context” [29], and more specifically “Strict Universes for Grothendieck Topoi” [14].
Reflections on the Repeal of Roe v. Wade
Authors: Belu Dana S. 
Published: December 2022

Abstract
This article examines briefly the implications of the recent repeal of Roe v. Wade by the U.S. Supreme Court. While these implications are dire for women’s rights all over the country, even in those states where abortion is still legal, the repeal may also herald the cancelation of other recently granted rights, such as same sex marriage. Consequently, it is necessary to mount a meaningful resistance to prevent such developments and to find other ways of guaranteeing the right of women to take decisions regarding their own body.
(In)Equality and the Influence of Reggaeton Music as a Socialisation Factor: A Critical Analysis
Authors: Díez-Gutiérrez Enrique-Javier , Palomo-Cermeño Eva , Mallo-Rodríguez Benjamín 
Published: December 2022

Abstract
Reggaetón music is very popular among Spanish speaking young people of high school-age. Thus, we intend to examine the values of (in)equality between women and men transmitted in the lyrics of this music genre. Using a Maxqda software-assisted Thematic Analysis methodology, the lyrics of 65 reggaetón songs with the most commercial success during 2020 have been analysed. The results suggest that the most commercialised reggaetón continues to reproduce certain traditional masculine stereotypes (machismo). In the discussion we compare and contrast alternative approaches and positions concerning the reggaetón genre. We feel it is necessary that educational spaces adopt a critical and consciousness raising approach to reggaetón due to the powerful influence exerted on young people regarding sexual stereotypes.
Efficiency Improvement of a Centrifugal Compressor Stage with the Parametric Optimization of the Impeller Blades
Authors: Ben N. , Ryzhkov S. , Topalov A. , Gerasin O. , Yan G. , Yan Xiaolin , Aleksieieva Anna 
Published: December 2022

Abstract
This work relates to the energy industry, in particular, complements the existing knowledge about a problem of increasing the overall efficiency of a centrifugal compressor stage by improving the geometric parameters of an impeller. The design features of the centrifugal compressors are analysed and the issues of their general modelling are considered in the article. The aim of the work is to increase the efficiency of the centrifugal compressor stage by improving the method of thermogasdynamic calculation with an extended determination of the number of its thermogasdynamic gas parameters and subsequent optimization of the design parameters of the impeller blades. This goal is achieved by solving the following problems: a) development of a model of the centrifugal compressor stage based on a method of thermogasdynamic calculation; b) study of the influence of the geometric parameters of the impeller and a diffuser on the components of gas velocities; c) improvement of the design methodology by optimizing the number of impeller blades, their thickness and angle of inclination to increase the efficiency of the stage. The most significant scientific results of the work are the construction method and the model of the centrifugal compressor stage, which allow taking into account real thermogasdynamic gas processes and calculating the geometric parameters of the impeller blades that are optimal in terms of efficiency.
Overview and Recommendations for Analysis of Water Distribution Systems Based on Performance Indicators
Authors: Vitan E. , Hotupan Anca , Hadarean Adriana , Cilibiu C. 
Published: December 2022

Abstract
The protection of the water sources represents a topic that concerns humanity worldwide. Hence, the decrease of the water losses that occurs in water distribution networks during its overall operational lifetime, is an important issue for water operators and for researchers at theoretical and experimental level. Over the last years progresses have been made on the evaluation and analysis methods in order to eliminate the water losses. Among these methods, the evaluation of the water distribution systems, made on performance indicators by the use of the water balance, is the most current. Thus, the calculated value of each performance indicator and the analysis of these values will lead to the identification of the real problems within the water distribution system. As a result, this analysis has to be the first step in the planning phase of a new project and in the same time, it can serve as a pattern for any water distribution systems in order to decrease the water losses at lower costs.
Assessment of pollutant emission in Poland from various categories of transport
Authors: Szczepański Krystian , Chłopek Zdzisław , Bebkiewicz Katarzyna , Sar Hubert 
Published: December 2022

Abstract
This paper refers to the inventory of pollutant emissions in Poland from different transport categories over the period 1990–2020. The changes in the annual national emissions of selected pollutants, i.e. nitrogen oxides, non-methane volatile organic compounds, sulfur oxides, PM2.5, PM10, total suspended particulate matter, carbon monoxide, and lead were analysed. The shares of the national annual emissions of the examined pollutants from each studied transport category in the national annual emission from total transport were assessed. The sensitivity of the national annual pollutant emission inventory with regard to the transport categories and emitted substances under the study was assessed.
The trend of decrease in the national annual emissions of the substances analysed was appraised as positive in the face of a substantial intensification of transport activities. Taking into account the fact that road transportation is responsible for a dominant share of the national emission of pollutants, important progress in the reduction of emissions is attributable to the substantial technical improvement of the internal combustion engines of road vehicles.
Concept of Vibroacoustic Diagnostics of the Fuel Injection and Electronic Cylinder Lubrication Systems of Marine Diesel Engines
Authors: Varbanets Roman , Shumylo Oleksandr , Marchenko Andrii , Minchev Dmytro , Kyrnats Vladyslav , Zalozh Vitalii , Aleksandrovska Nadiia , Brusnyk Roman , Volovyk Kateryna 
Published: December 2022

Abstract
Although direct measurements of the fuel injection pressure and the travel of the injector needle in conjunction with measurements of the valve train mechanism timing can provide complete diagnostic information about the technical conditions of the fuel injection and valve train systems, this requires the installation of sensors and other equipment directly into the systems, which is possible within research laboratories but is generally forbidden during operation of the ship. Malfunctions in the fuel injection and valve train systems can also be identified from the indicator diagrams of an engine operating cycle, expressed as P(V) and P(deg) diagrams. The basic parameters of the engine operating cycle, such as the maximum combustion pressure Pmax, compression pressure Pcompr, and indicated mean effective pressure IMEP, can also be used to indicate deviations from proper engine operation. Using a combination of a vibration sensor with an in-cylinder gas pressure sensor widens the capabilities of diagnostics for marine diesel engines under operational conditions. A vibration sensor with a magnetic base can help in determining the timings of the lifting and landing of the injector needle, fuel delivery by the fuel injection pump, opening and closing of the circulation of heated heavy fuel oil, and opening and closing of the gas distribution valves. This also offers a promising solution for diagnostics of the cylinder lubrication oil injectors. The proposed approach allows valuable information to be received during engine operation in accordance with the principle of non-destructive control, and can help in early detection of possible engine malfunctions.
Design and Operational Diagnostics of Marine Propellers Made of Polymer Materials
Authors: Kluczyk Marcin , Grządziela Andrzej , Batur Tomislav 
Published: December 2022

Abstract
There has been a rapidly growing interest in the use of composite and polymer materials for the construction of marine propellers for over 20 years. The main advantages of these materials are a reduction in the weight of the propeller, increased efficiency due to the hydroelasticity effect, a reduction of the hydroacoustic signature, and a cost reduction for serial production. This paper presents an overview of diagnostic methods that can be applied at the design level and during the operation of marine propellers made of polymeric materials. Non-invasive contact and non-contact-based diagnostic techniques for evaluating the technical state of the propeller are reviewed, and the advantages and disadvantages of qualitative and quantitative methods are identified. Operational diagnostic procedures for propellers are areessential for the safety of vessels at sea. Finally, the structure of a diagnostic system is proposed. It combined diagnosis process with the genesis of damage and the prognosis of the technical condition, i.e. production and in-service diagnostics.
A Triboelectric Nanogenerator Based on a Pendulum-Plate Wave Energy Converter
Authors: Zhu Shenglin , Yang Shaohui , Li Hui , Huang Yan , Du Zhichang , Fan Jianyu , Lin Zhonghua 
Published: December 2022

Abstract
Ocean waves are a promising source of renewable energy, but harvesting this irregular low-frequency energy is challenging due to technological limitations. In this paper, a pendulum plate-based triboelectric nanogenerator (PP-TENG) is proposed. The PP-TENG absorbs wave energy through the pendulum plate installed at the bottom of the device, which generates a swing effect. This drives the motion of the upper TENG power generation unit and generates a charge transfer on the surface of a film of polymer PTFE and nylon, materials which are very sensitive to the low-frequency wave environment. The PP-TENG was tested after building a semi-physical simulation test platform. When the polymer materials were PTFE with a thickness of 0.01 mm and nylon with a thickness of 0.02 mm, 33 commercial LED lamps could be lit simultaneously. Moreover, under short-circuit conditions, the current reached 2.45 μA, and under open-circuit conditions, the voltage reached 212 V. When the PP-TENG was connected in series with a resistor with a resistance of 3 × 105 Ω, its maximum peak power density reached 6.74 mW/m2. It can be concluded that the PP-TENG is characterised by low fabrication costs and excellent energy conversion efficiency. The combination of a pendulum wave energy converter with a TENG shows great output performance. This research lays a solid foundation for practical applications of the proposed structure in the future.
Radical hysterectomy for locally advanced cervical cancer with Para-Aortic lymphadenectomy: case presentation
Authors: Tulin Raluca , Slavu Iulian , Oprescu Constantin , Oprescu Anca Macovei , Venter Dana Paula , Niţipir Cornelia , Tulin Adrian 
Published: December 2022

Abstract
Pelvic lymphadenectomy with radical hysterectomy is the basic treatment in locally advanced cervical cancer, but, for carefully selected cases, this intervention can be extended and high Para-Aortic lymphadenectomy can be performed to the site of emergence of the renal arteries. The mortality of the procedure has decreased significantly since the 1900s when it was introduced by Wertheim, while the 5-year DFS reached rates of over 90%.
Breast cancer and musculoskeletal implications - potential mechanism of dissemination
Authors: Șerboiu Crenguța , Secară Diana , Crețu Bogdan , Dumitru Adrian , Pariza George , Mavrodin Carmen , Baroș Alexandru , Păuleț Florina-Paula , Potorac Alina , Cîrstoiu Monica Mihaela 
Published: December 2022

Abstract
The purpose of this article was to analyze bone metastases as being the most common site of recurrence of breast cancer. Bone metastases secondary to breast cancer have a negative impact on patient survival, mobility and quality of life. In addition, the clinical complications of bone cancer metastases of breast cancer are associated with a significant financial burden for the individual and society.
This article summarized the implications of breast cancer musculoskeletal metastases based on clinical application in an emergency hospital, including patient workup, procedural strategy and techniques.
The status and future of forensic archaeology and anthropology in Finland
Authors: Mäkinen Taru , Maijanen Heli , Seitsonen Oula 
Published: December 2022

Abstract
In this paper we discuss the history and development of forensic archaeology and anthropology in Finland. Current status of the fields and some future prospects are also highlighted. We offer some potential reasons for why so little research related to forensic archaeology or anthropology is conducted in Finland. To set the forensic archaeology and anthropology in Finland into a broader setting, we discuss the awareness of the fields among Finnish archaeologists, anthropologists, and enthusiasts via the results of an online survey conducted in November 2021. In this manuscript we also delve into some inner workings of Finnish law enforcement and voluntary organisations in order to show how forensic archaeologists and anthropologists could fit into criminal investigations in Finland.
Forensic Anthropology and Archaeology in Denmark
Authors: Villa Chiara , Lynnerup Niels , Boel Lene Warner Thorup , Boldsen Jesper L. , Weise Svenja , Bjarnø Camilla , Larsen Lars Krants , Jørkov Marie Louise 
Published: December 2022

Abstract
In this paper, we provide a brief overview of the status of forensic anthropology and forensic archeology in Denmark, as well as related information about education, research, and skeletal collections. Forensic anthropologists mainly deal with the examination of unidentified skeletal remains. Some special tasks include cranial trauma analysis of the recently deceased, advanced 3D visualization from CT scanning of homicide cases, and stature estimation of perpetrators using surveillance videos. Forensic anthropologists are employed at one of Denmark’s three departments of forensic medicine (in Copenhagen, Odense, and Aarhus) and have access to advanced imaging equipment (e.g., CT and MR scanning, surface scanners, and 3D printers) for use in both their requisitioned work and their research. Extensive research is conducted on different topics, such as the health and diseases of past populations, age estimation, and human morphology. Research is based on skeletal material from the archeological collections housed in Copenhagen and Odense or on CT data from the recently deceased. There is no full degree in forensic anthropology in Denmark, but elective courses and lectures are offered to students at different levels and to people from different professional backgrounds.
Forensic archaeology is a relatively new field of expertise in Denmark, and relevant cases are rare, with only one or two cases per year. No forensic archeologists are officially employed in any of the departments of forensic medicine. Until recently, the Special Crime Unit of the police handled crime scene investigations involving excavations, but with the option of enlisting the help of outside specialists, such as archaeologists, anthropologists, and pathologists. An official excavation work group was established in 2015 under the lead of the Special Crime Unit of the police with the aim of refining the methods and procedures used in relevant criminal investigations. The group is represented by five police officers from the Special Crime Scene Unit, a police officer from the National Police Dog Training center, the two archaeologists from Moesgaard Museum, a forensic anthropologist from the Department of Forensic Medicine (University of Copenhagen), and a forensic pathologist from the Department of Forensic Medicine (University of Aarhus).
Nutritional Status and Severity of Pneumonia among Inpatient of Children Under Five Years
Authors: Kharisma Dayu Swasti , Zahra Balqis Al Sakina 
Published: December 2022

Background: The prevalence of pneumonia in developing countries continues to increase, especially in Indonesia. One of the factors that influence the severity of pneumonia is nutritional status. Malnutrition increases susceptibility to infection. Purposes: This study aimed to determine the relationship between nutritional status and pneumonia severity in children under five. Methods: This research was an analytic study with a cross-sectional design. The data were taken from the medical records of pneumonia patients under five years of age who were hospitalized at the Infectious Disease Hospital Prof. Dr. Sulianti Saroso for January 2018 to October 2019. Bivariate analysis was performed using the chi-square test. Results: Out of 68 patients who met the inclusion criteria, the highest age range was 0-11 months (50%), the most gender was female (55.9%), the group with the highest cases was the severe pneumonia group (73.5%), the most nutritional status was abnormal nutrition (55.9%). There are 86.8% of patients with abnormal nutritional status suffer from severe pneumonia. Conclusion: There is a relationship between nutritional status and pneumonia severity.
أثر استراتيجية ثنائية التحليل والتركيب في اكتساب المفاهيم الجغرافية لدى طلاب الصف الثاني المتوسط وتنمية تفكيرهم عالي الرتبة
Authors: Jwad Alazawi Firas Jabar , Mohammed Aljibori Ra’ad Khalaf 
Published: December 2022

يهدف البحث الحالي التعرف على ( أثر إستراتيجية ثنائية التحليل والتركيب في اكتساب المفاهيم الجغرافية لدى طلاب الصف الثاني المتوسط وتنمية تفكيرهم عالي الرتب ) استعمل الباحثُ التصمَيم التجريبي ذا الضبط الجزئي، كما تحدد البحث الحالي بطلاب الصف الثاني المتوسط في المدارس الثانوية النهارية الحكومية التابعة للمديرية العامة لتربية صلاح الدين / بلد للعام الدراسي ( 2017- 2018)، واختيرت مدرسة الجماهير للبنين بصورة قصدية ليكون طلابها عينة البحث ثم أجريَ اختيار الصف الثاني متوسط بصورة عشوائية لتمثل المجموعة التجريبية ومدرسة ثانوية يثرب للبنين للمجموعة الضابطة. وبلغت عينة البحث (86) طالباً بواقع (42) طالب في المجموعة التجريبية و (44) طالباً في المجموعة الضابطة. صيغت الأغراض السلوكية لهذه الفصول وبلغ عددها (115) غرضاً سلوكياً ممثلة للمستويات الستة لتصنيف بلوم في المجال المعرفي (تذكر، استيعاب، تطبيق، تحليل، تركيب، تقويم) وفقاً لعدد الحصص المقترحة لكل فصل، ثم أعدت الخطط التدريسية لمجموعتي البحث وبلغ عددها (20) خطة لكلَّ مجموعة إذ قام الباحث بتدريس المجموعتين بنفسه خلال مدة التجربة التي استمرت (8) أسابيع من الفصل الثاني للعام الدراسي (2017- 2018).أعدّ َالباحثُ اختباراً تحصيلياً للفصول الاول والثاني من كتاب الجغرافية للصف الثاني المتوسط مؤلفا من (47) فقرة تمثلت بالأسئلة الموضوعية، كما تبنى الباحث اختبار التفكير عالي الرتب مؤلفا من (30) فقرة تمثلت في نوعين من الأسئلة : (15) موضوعية و (15) مقالية، تم التحقق من صدق الأداتين من فضلا عن استخراج الثبات لكلا الإختبارين. وبعد انتهاء التجربة تم تطبيق الأداتين على مجموعتي البحث، ثم صححت إجابات الطلاب وتمت معالجتها احصائيا، ذي ظهرت النتائج الأتية : وجود فرق ذي دلالة احصائية لصالح المجموعة التجريبية في الاختبار التحصيلي وبحجم أثر كبير للمتغير المستقل بلغ (82). 2وجود فرق ذي دلالة احصائية لصالح المجموعة التجريبية في مقياس التفكير عالي الرتبة وبحجم أثر متوسط للمتغير المستقل بلغ (0.7).