bluuebunny/crossref_metadata_2025 huggingface dataset:
Theoretical Probabilistic Nonlinear Analysis of Post-Tensioned Bridge Cross-Sections with the Application of Random Fields
Authors: Owerko Piotr
Published: July 2023

The paper presents a proprietary procedure for the analysis of normal stress distributions in post-tensioned cross-sections. It has a significant advantage over conventional commonly used approaches based solely on the envelope analysis as it provides stress levels in all components of the cross-section. The procedure was used in a series of probabilistic analyses with the adoption of random fields. These fields represented uncertainties in strain-stress relationship in concrete. The analysis covered several types of cross-sections and several types of random fields. Key observations from the conducted simulations are as follows: (I) the widest ranges of the probable maximum stresses (i.e. the lowest indexes of reliability) were obtained for sections with relatively low heights of the compressive zone. (II) The highest probabilistic sensitivity to the type of random field used was found in tall sections with a relatively large compressive zone. (III) The greatest sensitivity to batch uncertainties was evident in all cross-sections when using squared exponential random fields. (IV) The greatest relative sensitivity to the batch uncertainties in the form of the random field compliant with the guidelines of the Joint Comity of Structural Safety (JCSS) was evident in the analyses of the tallest cross-section corresponding to the incrementally launched bridges.
Analysis of the Degradation Process of Sand-Lime Plasters Under the Impact of Crystallization Pressure
Authors: Ślusarek Jan , Słomka-Słupik Barbara , Bochen Jerzy
Published: July 2023

A masonry basement wall was heavily dampened due to the lack of waterproofing in the ground contact area. Internal sand-lime wall plaster samples were subjected to chemical, physical and strength tests. The main phases of the damaged plaster were quartz and calcite. A measuring method of the tensile strength of plasters was proposed. A polar-symmetric deformation problem of a thick-walled spherical tank, allowing for the estimation of circumferential stresses in the spherical model was used for the analysis. It was found that the same values of porosity correspond to identical values of circumferential stresses, regardless of the values of the radii of the analyzed model. Thus the purpose of the presented research was to demonstrate that the mentioned dependence applied in the adopted model may be useful for the analysis of problems involving the resistance of internal plaster structure to the expansion caused by crystallization pressure.
Universal module for processing radar data during search and rescue operations
Authors:   State Fire Academy of EMERCOM of Russia, Mokshantsev Aleksander V. , Malfi Khalil A.M.N. ,   State Fire Academy of EMERCOM of Russia
Published: July 2023

PURPOSE. The goal of the authors is to develop a universal information processing module (UIPM), which provides communication environment between the module of the radar signal system and radar stations during search and rescue operations (SRO). Achieving the goal will result in the possibility of processing, synchronizing and transceiving radar data during SRO in real time. METHODS. Methods of modeling, compiling, synthesis and assembly, as well as temporal analysis method were used. It is advisable to use computer-aided design Quartus II of professional level. FINDINGS. UIPM during SRO was developed and its operation was implemented on the basis of processing, synchronizing and transceiving radar data. Module operation simulation in computer-aided design Quartus II of professional level was performed. The results of information processing confirmed: – transceiving data at a speed of 1 Mb/s between all blocks taking into account frequency allocation; – compatibility and synchronization of operations between elements using frequency to determine the range scale of finding casualties on the ground and under the rubble. RESEARCH APPLICATION FIELD. The obtained results make it possible to provide a fast communication environment for real-time processing and synchronizing radar data between the module of the radar signal system and radar stations during SRO. CONCLUSIONS. The use of the developed UIPM during SRO will allow synchronizing radar data on victims location (parameters) between the module of the radar signal system during search and rescue operations, as well as the physical nodes and blocks of the radar station. Transceiving information by control stations, the carrier and the complex of parameters of victims during search and rescue operations will also be provided.
Influence of liquefied natural gas composition on the concentration limits of flame propagation
Authors:   State Fire Academy of EMERCOM of Russia, Teterin Ivan A. , Sulimenko Vladimir A. ,   State Fire Academy of EMERCOM of Russia, Gudkov Maksim A. ,   State Fire Academy of EMERCOM of Russia, Isaeva Lyudmila K. ,   State Fire Academy of EMERCOM of Russia, Gafarova Eliza B. ,   National University of Oil and Gas “Gubkin University”
Published: July 2023

PURPOSE. The growth in the production of liquefied natural gas (LNG) in the Russian Federation sets the tasks of increasing safety level in this segment of the economy. The key parameter of the object of study under consideration is the concentration limits of flame propagation, which are determined by methane for LNG. However, the composition of LNG varies depending on its brand, storage process, transportation and loading and unloading operations. This fact requires a detailed analysis of the concentration limits of flame propagation for various LNG compositions. METHODS. The analysis of changes in the lower concentration limits of flame propagation (LFL) of methane, ethane, propane and butane presented in various reference data was carried out. The calculation method was used to establish LFL for the model composition of LNG vapors, and to determine the error between calculation and experiment. FINDINGS. The analysis of regulatory documents showed that the LFL value of 4.4 % for liquefied gas is the special case and requires clarification based on the LNG brand, storage process, transportation, and loading and unloading operations. The experimental data demonstrate the decrease in LFL of the model composition of LNG for class B compared to the calculated ones, the relative error does not exceed 14 %. RESEARCH APPLICATION FIELD. The results obtained will make it possible to differentiate the approach for determining fire and explosion hazard of LNG based on brand and life cycles of liquefied natural gas, which will allow applying a differentiated approach to the requirements for fire and explosion safety of LNG based on its composition. CONCLUSIONS. The concentration limits of flame propagation for LNG model compositions were calculated. Further directions of work on improving the methodology for calculating the parameters of liquefied natural gas explosion were determined, and the discrepancy between the normatively fixed LFL parameter of LNG vapors and experimental data was shown. It is proposed to take into account the brands and aging processes of LNG to predict the concentration limits of flame propagation.
On the tactical capabilities of gas and smoke protection service units when working in difficult conditions
Authors:   State Fire Academy of EMERCOM of Russia, Korshunov Igor V. , Smagin Aleksander V. ,   State Fire Academy of EMERCOM of Russia, Terebnev Vladimir V. ,   State Fire Academy of EMERCOM of Russia
Published: July 2023

PURPOSE. Orientation of the gas and smoke protection service (GSPS) unit when working in an unbreathable environment while rescuing people and extinguishing fires is a rather difficult task. It becomes even more difficult if a fire occurs in challenging environment, for example, in subway tunnels or cable structures of energy enterprises. The length of these objects can reach several hundred meters, and, as a rule, there are only two entry points for GSPS units in them: an entrance and an exit located on opposite sides of the structure. The authors have analyzed means of GSPS unit orientation in conditions of bad visibility. With the help of mathematical calculations, the expediency of introducing the considered methods into practice is substantiated. METHODS. The article presents an analysis of the ways and methods of GSPS unit orienting. On the basis of mathematical analysis, possible circumstances of the smoke divers operation in a fire are predicted. FINDINGS. A preliminary assessment of GSPS units’ tactical capabilities operating in difficult fire conditions in the subway tunnel has been carried out. Calculations of GSPS unit operation parameters have been made in accordance with the generally accepted methodology. It has been determined that even under the most favorable conditions the GSPS unit is not able to complete the task without having clear spatial references. RESEARCH APPLICATION FIELD. The results obtained can be used in smoke divers training, as well as in the practical activities of firefighters guarding metro and energy facilities. CONCLUSIONS. The authors have proposed variants of signs and markings that allow smoke divers to determine their location in a timely manner and make competent management decisions. Introducing the proposed methods for GSPS units orienting will make it possible to perform the tasks of rescuing victims as quickly and safely as possible.
Monitoring and maintaining the parameters of the efficient functioning of a tube furnace steam curtain
Authors:   State Fire Academy of EMERCOM of Russia, Fedorov Andrey V. , Rubtsov Dmitry N. ,   State Fire Academy of EMERCOM of Russia, Ospanov Kairat K. ,   State Fire Academy of EMERCOM of Russia
Published: July 2023

Purpose. A review of the structure of a modern automated process control system of an oil refining complex allowed the authors to identify the lack of technical means for remote control of the effective functioning of a protective steam curtain of tube furnaces. Numerical simulation of changes in steam pressure in a steam pipeline at the site of a diesel fuel hydrotreating unit depending on the steam mass flow was carried out. Based on the results of the review and simulation, technical solutions were developed that provide remote control of steam pressure, as well as automatic maintenance of the set steam pressure parameters for the effective operation of a protective steam curtain of a tube furnace of a diesel fuel hydrotreating unit. METHODS. To obtain the results, the authors used general scientific and special methods of scientific knowledge such as analysis, synthesis and generalization, which are based on the provisions of systems and information theories. FINDINGS. The results of numerical simulation of changes in steam pressure in a steam pipeline at the site of a diesel fuel hydrotreating unit depending on the steam mass flow were obtained. It was determined that with the simultaneous launch of protective steam curtains of five tube furnaces, it is possible to reduce the steam pressure values below the normative ones. RESEARCH APPLICATION FIELD. The obtained results of the research can be used in tube furnace protective steam curtain systems at oil refineries and petrochemical plants to automate the control of steam pressure parameters and automatically maintain the set parameters of steam pressure when the values drop below the set ones. CONCLUSIONS. Based on the results of numerical simulation of changes in steam pressure in the steam pipeline at the section of a diesel fuel hydrotreating unit, depending on the steam mass flow, technical solutions were developed that provide remote control of steam pressure, as well as automatic maintenance of the set steam pressure parameters for the effective operation of the protective steam curtain of a tube furnace of a diesel fuel hydrotreating unit. Directions for further research are defined.
Applying mind mapping methodology in practical studies at a technical university
Authors:   State Fire Academy of EMERCOM of Russia, FURS S.P. , FEDOSEEV A.A. ,   State Fire Academy of EMERCOM of Russia
Published: July 2023

The paper deals with mind mapping methodology using specifics in practical classes at a technical university. The features of this technique are analyzed, its choice during classes is substantiated, its relevance to modern educational system is shown.
British satirical tradition in P.H. Johnson's novel “The Unspeakable Skipton”: continuity and individuality
Authors:   State Fire Academy of EMERCOM of Russia, MUZYCHENKO A.S.
Published: July 2023

This article is devoted to the question of the continuity of the satirical tradition of British prose writers of the 19th and 20th centuries. A comparative analysis of samples of satirical novels by individual classics of British literature (Samuel Butler, George Meredith, and Aldous Huxley) is given. A parallel is drawn between the works of Aldous Huxley and Pamela Hansford Johnson, similarities are noted in the formulation of the problem (the relationship between the artist and society), in the images of the main characters. The key point is the analysis of the features of satire by P.H. Johnson on the example of the novel "The Unspeakable Skipton". An assessment of the writer's contribution to English literature is given.
Management of Namhansanseong in late Joseon
Authors:   Institute For Kyeongki Cultural Studies, Kang Seok-Hwa
Published: July 2023

Namhansanseong is the place where king Injo moved the royal court and stood against the Qing army as it invaded in December 1636(Injo 14th) until when he surrendered in January of the next year. It was assumed that there would rise conflicts because Joseon vowed vengeance for the loss to Qing. Moreover, it was thought that Qing couldn't last long since they consisted of barbarians and that there was a high chance to occur a war again when they should try to return to their home. Whether it was triggered by Joseon or Qing, the concern that it was possible to occur another clash between the two didn't fade in late Joseon. This thought made Namhansanseong seem to be an important defense base of the capital area in case of emergencies.
In late Joseon, Namhansanseong meant the memories of war that both royals and people underwent together, the devotion of whom gave their lives for their country and king and the worries of the king and his subjects. Therefore, the royal court was much interested in the maintenance and extension of Namhansanseong. They kept track of how to fix and maintain the place, military recruitment and arrangement for protection and the storage and management of rations.
For Namhansanseong was supposed to be the main base for the potential war, the repair of walls and the development of the defense system were constantly performed. Also, the system of gathering and managing people from nearby towns including Gwangju and the residing monks in the fortress was regularly organized. Additionally, storing rations was another important role of Namhansanseong. Its system was emphasized to be the general law for construction and personnel management of Bukhansanseong and Suwon Hwaseong.
After mid-18th century, as Qing's policies settled down and the probabilities of war decreased, the role of Namhansanseong changed. With the increasing interest of the operation of stored rations, Namhansanseong was counted as a supplement of the national finance instead of a military base. The rations in Namhansanseong were distributed to and collected from Gwangju and nearby regions as Hwangok. But, due to poor harvest and corruption, it was difficult to maintain the standard quantity. Nevertheless, the actual amount wasn't low, so that the court members personally used it as a spare resource when needed. In the end, such uses increased so much to fabricate its existence in 19th century. During Sedojeongchi period, it was impossible to properly keep the rations in the fortress because of the three administrations' disorders.
In the study, the contents of articles related to Namhansanseong from the official records in late Joseon are briefly categorized. Written in chronological order, it is possible to refer the records to understand how the status of Namhansanseong and its policy changed as time passed. The theme and the articles in the study are expected to be a basis for another full-scale research for the management of Namhansanseong and its status.
Godard: pistas para un itinerario creativo in-sólito
Authors: León Frias Isaac
Published: July 2023

A través de una obra que abarcó más de seis décadas y diversas propuestas cinematográficas, Jean-Luc Godard logró convertirse en un autor influyente que marcó una época en la historia del cine. Acá un detallado y extenso repaso por sus diversas etapas como artista, así como por sus colaboradores, aspiraciones y métodos.
A Guerra para Dentro: Pacificação como doutrina e prática das Forças Armadas do Brasil
Authors: Rodrigues Thiago , Mendonça Thaiane , Morato Tadeu
Published: July 2023

O artigo apresenta a noção de dispositivo pacificação como meio para abordar e analisar a constante intervenção das Forças Armadas brasileiras em questões domésticas. A partir da genealogia do poder proposta por Michel Foucault, usada como método, e dos seus conceitos de “disciplina” e “biopolítica”, como referenciais teóricos, propomos uma análise de três conjuntos de práticas aparecidas historicamente em momentos subsequentes e que se compuseram cumulativamente: a política indigenista do Marechal Rondon, a adoção das táticas de contrainsurgência durante o regime autoritário (1964-1985) e as contemporâneas táticas de policiamento de pacificação desenvolvidas no Haiti e no Rio de Janeiro. Argumentamos que a noção de pacificação é um elemento chave que impulsiona, ao longo da história brasileira, a tradição intervencionista das Forças Armadas, que se dá pela contínua combinação entre guerra interna e assistencialismo seletivamente aplicados sobre parcelas específicas da população.
CEO Overconfidence and Voluntary Management Forecasts
Authors:   Korea Accounting Information Association, Kwon Young Min , Kim Jin Wook
Published: July 2023

[Purpose]Managers’ personal characteristics play an important role in corporate decision－making. Overconfidence, one of the personal characteristics of managers, refers to the tendency to overestimate managers’ own abilities and the probability of positive events happening to them. Therefore, overconfident CEOs are likely to overestimate the returns to their investment projects and to misperceive a negative net present value project as value creating. This study, therefore, examines whether overconfident CEOs are more likely to issue a management forecast. We also investigate whether CEO overconfident is related to the accuracy of forecast.
[Methodology]Our sample consists of 6,310 firm－year observations of firms listed on the Korean Composite Stock Price Index (KOSPI) market of the Korea Exchange (KRX) for the period from 2003 to 2015. We measure CEO overconfidence using empirical measure that has been developed by Ahmed and Duellman (2013) and Schrand and Zechman (2012).
[Findings]We find that CEO overconfidence is positively associated with the likelihood of issuing a management forecast. In addition, we find that overconfidence is negatively related to the accuracy of management forecasts. These findings imply that overconfident CEOs are more likely to issue a management forecast and that their forecasts are less accurate.
[Implications]Our study contributes to our understanding of why some managers voluntarily issue forecasts while others do not. The result of this study implies that overconfidence, among the personal characteristics of managers, affects the motivation for voluntary management forecasts. In addition, the result that overconfident CEOs issue less accurate forecasts supports prior studies that CEO overconfidence is a potential factor that can hinder the optimal corporate decision－making.
Anti－takeover Provision and the Cost of Debt
Authors:   Korea Accounting Information Association, Kim Sung Hye , Lee A Young
Published: July 2023

[Purpose]This study examines the effect of Anti－Takeover Provisions(ATP, hereinafter referred to as ATP) on the cost of debt capital using credit ratings and borrowing interest rates. Through this, it is intended to clarify whether creditors interpret ATP, which means weakening shareholder rights, differently from shareholders.
[Methodology]From 2011 to 2018, domestic companies listed on the KOSPI Market excluding the financial industry were selected as samples, and ATP were identified through the articles of incorporation. We conducted a regression analysis to verify the effect of Anti－Takeover Provision on the cost of debt.
[Findings]As a result of the analysis, companies with ATP had relatively lower credit ratings and higher borrowing interest rates than those without ATP. And the more ATP they had, the lower their credit rating was. This is consistent with overseas empirical studies that the weakening of shareholder rights is also disadvantageous to creditors, supporting that mergers and acquisitions can benefit from coinsurance effect, which reduces the risk of default by improving the company’s debt capacity after the merger.
[Implications]This study has contributions in that it analyzed the impact of strengthening (or weakening) shareholder rights on creditors using domestic data. Research and systems related to corporate governance have been dealt with a lot from the perspective of shareholders, but there is a lack of various studies on how they affect creditors. Creditors are major stakeholders of the company and play an important role in corporate governance. In this study, it is meaningful in that the impact of changes in corporate governance on them from the perspective of creditors was analyzed through ATP.
Pengembangan Perangkat Pembelajaran Fisika Model Group Investigation untuk Meningkatkan Kemampuan Berpikir Kritis Peserta Didik Pada Materi Momentum dan Impuls
Authors: Claudia Nindi , Zuhdi Muhammad , Gunada I Wayan
Published: July 2023

Penelitian pengembangan ini bertujuan untuk menghasilkan produk perangkat pembelajaran model group investigation untuk meningkatkan kemampuan berpikir kritis dan hasil belajar peserta didik yang valid, efektif dan efisien. Desain penelitian yang digunakan adalah penelitian pengembangan model 4D yang terdiri dari Define, Design, Develop dan Disseminate. Produk yang dikembangkan yaitu Rencana Pelaksanaan Pembelajaran (RPP), Lembar Kerja Peserta Didik (LKPD), instrumen tes kemampuan berpikir kritis dan hasil belajar. Teknik pengumpulan data menggunakan lembar validasi, uji coba terbatas, dan respon peserta didik terhadap model mengajar guru, LKPD dan instrumen tes. Hasil penelitian berdasarkan validasi ahli dan praktisi menunjukkan perangkat pembelajaran yang dikembangkan dalam kategori sangat. Selanjutnya, hasil rata-rata N-gain untuk kemampuan berpikir kritis sebesar 0.70 dengan kategori sedang, rata-rata N-gain untuk hasil belajar sebesar 0.32 dengan kategori sedang dan respon peserta didik menunjukkan hasil yang positif. Berdasarkan hal ini, disimpulkan bahwa perangkat pembelajaran model group investigation valid, efektif dan efisien digunakan dalam pembelajaran untuk meningkatkan kemampuan berpikir kritis dan hasil belajar fisika peserta didik.
Keywords: Pengembangan perangkat pembelajaran; model group investigation; kemampuan berpikir kritis.
Perancangan Sistem Pendukung Keputusan Pemilihan Peserta LKS Dengan Kombinasi Metode Gain Ratio Dan Moora
Authors:   Universitas Duta Bangsa Surakarta, Saputro Agung , Atina Vihi ,   Universitas Duta Bangsa Surakarta, Susanto Rudi ,   Universitas Duta Bangsa Surakarta
Published: July 2023

At SMK Negeri 1 Kismantoro, before this system was used, it used to only use manual or subjective methods, meaning that teachers still chose students directly. The selection of outstanding students must really be used as a reference for the following year to ensure increased academic success. This competition is held every year. SMK Negeri 1 Kismantoro sends a team every year to advance in this competition. Decision support systems can be made using several methods, one of which is the Moora and Gain Ratio method. This support system can assist in making decisions in selecting outstanding students for the SMK Negeri 1 Kismantoro competition. Operation of the Moore method consists of giving weight to each criterion. The Increment Ratio method is carried out to find the criteria used in the moora method, namely with the highest value having 4 of the highest, namely the card criteria is directly proportional to the gain of (0.44644), practice with a gain of (0.88129), attitude (personality) with the advantage (0.44644), skills with advantage (0.42836). The Moora method can choose alternatives and rank them to make the best student recommendations based on predetermined criteria where the Lutfiyatul Rosida alternative (A10) is the student with the best performance with Yi-Max = 0.165.
Rancang Bangun Sistem Pakar Untuk Mendiagnosa Penyakit Dispepsia Dengan Metode Forward Chaining
Authors:   Universitas Duta Bangsa surakarta, istiqomah Yasinta , Maulindar Joni ,   Universitas Duta Bangsa surakarta, Hartanti Dwi ,   Universitas Duta Bangsa surakarta
Published: July 2023

Dyspepsia is a digestive disorder that causes discomfort or pain in the stomach. In expert systems, the forward chaining method is used to diagnose this disease. This method evaluates the facts or symptoms obtained from the patient, then determines the appropriate diagnosis. The application of the forward chaining method in an expert system allows for an efficient and systematic evaluation of patient symptoms, so that patients can make their own detections and can make further decisions so that their disease can be treated immediately. This technology-based approach enhances the diagnostic process and facilitates rapid intervention. The expert system developed to diagnose dyspepsia has been successfully implemented using knowledge that includes 21 symptoms and 3 types of related diseases. System validation was carried out by testing 30 data samples, and the results showed that the system has an accuracy rate of up to 90% in correctly identifying and diagnosing dyspepsia. This shows that the expert system has a high level of expertise in analyzing the symptoms presented and providing a reliable diagnosis
Rancang Bangun Sistem Informasi Geografis Pemetaan Wilayah Penderita Penyakit Stunting
Authors:   Universitas Hamzanwadi, Nur Amri Muliawan , Fathurrahman Fathurrahman ,   Universitas Hamzanwadi, Saipul Muhammad ,   Universitas Hamzanwadi, Oktavia Nila Sulastri ,   Universitas Hamzanwadi
Published: July 2023

Stunting is a growth disorder in children and toddlers caused by lack of nutritional intake, so that children's height is stunted compared to children their age. Currently, stunting sufferers in West Sakra District can be said to be quite vulnerable. So it requires intensive treatment and attention quickly and precisely. In mapping the area of stunting sufferers in West Sakra District it is still manual so that in the process of searching for areas with stunting in West Sakra it takes a long time and tends to cause problems. Therefore, a study was conducted to create a geographic information system for mapping the areas of stunting sufferers in West Sakra District. The purpose of this system is to provide convenience and help the West Sakra District, especially the Rensing Health Center, which manages the data. The steps taken in making this system are system requirements analysis, system design, system creation, and system testing. And in making this system, using the PHP programming language and using MySQL as the database
Sistem Keamanan Server Linux CentOS Dengan Metode Port Knock dan RST Cookies
Authors:   Universitas Hamzanwadi, Hidayat Muh. Adrian Juniarta , Putra Hadian Mandala ,   Universitas Hamzanwadi
Published: July 2023

The increase in online-based services makes a security system for server computers increasingly needed. A server computer is a device that must always be available to be accessed anytime and anywhere. Some of the security systems needed for server computers include security for ssh port access for remote server access needs and a security system to protect servers from Denial of Service (DoS) attacks which can make the server down and completely inaccessible. In this study, a security system is proposed for a server computer with the Linux CentOS operating system on a port 22 secure shell(ssh) access system using the port knock method and a security system to prevent Denial of Service (DoS) attacks on server computers using the RST Cookies method. The simulation results from the port 22 Secure Shell (SSH) access experiment for the server computer can work well where port 22 Secure Shell(SSH) will remain closed and cannot be accessed carelessly except by accessing several ports first according to predefined port knocking rules. Likewise, the implementation of a security system with the RST Cookies method works very well to prevent Denial of Service (DoS) attacks and can still keep the server accessible with a good response time of under 1 ms
Rancang Bangun Sistem Informasi Penjualan Baju Thriff Dalam Meningkatkan Mutu Palayanan dan Jumlah Transaksi
Authors: Ahmadi Hamzan , Wijaya Lalu Kerta , Harianto Harianto
Published: July 2023

The development of information technology is growing very rapidly, so it has a very important role in various fields, one of which is in the business field, there are still many companies or businessmen who need information systems to support all activities ranging from marketing, data and information management. Queen thrift is a shop engaged in the fashion or clothing business located in Masbagek, Masbagek sub-district, East Lombok. So far, for promotional or marketing media carried out by Queen Thrift shop owners, namely using social media. With this, new innovations are urgently needed, and convenience in the promotion process, as well as online services in the form of information systems. so that these products can be seen by consumers quickly without having to come to the store.  With this, it is necessary to update the old system to the new system, namely by creating an online sales information system. With the hope to facilitate monitoring, storage, calculations and reports. In order to be able to provide the right information needed by customers and the store itself.
Masjid Al-Ikhlas Kelurahan Bareng Kota Malang Sebagai Pusat Peradaban dan Kemakmuran Perspektif Konstruksi Sosial
Authors: Ardiansyah Adistya Eka Sis
Published: July 2023

The meaning of a mosque is not just a place of worship, but a place where civilization runs so that prosperity is needed in the mosque. This research aims to determine how the management process of the Al-Ikhlas Mosque, Bareng urban village, and Malang City is trying to reconstruct the true meaning of the mosque. The theory used in this study was the social construction of Peter L. Berger. This theory is useful for analyzing the social construction of the Al-Ikhlas Mosque in building civilization and the prosperity of the mosque through three processes: externalization, objectification, and internalization. This research uses qualitative methods with data collection techniques through observation, interviews, documentation, and relevant literature studies. The informants of this research were two mosque takmir administrators who were selected using a purposive sampling technique to ensure that the data generated were accurate. The results showed that there is a social construction in the management of the Al-Ikhlas Mosque, which is divided into three processes. The first is reflected in the response of the community, who needs a mosque as a center of civilization and prosperity for the people. Second, the objectification process through various mosque management activities such as the existence of the Happy Market, EkoMas (Al-Ikhlas Mosque Economy), Rukun Kematian, S3 (Sedekah Seribu Sehari), Sports Venue and routine studies. Third, the internalization process obtained by the community and mosque administrators through the primary socialization process from the family and secondary socialization from the surrounding environment, which is then passed down to the next generation, namely the mosque congregation, through routine studies. Through these three social construction processes, mosque management is created that aims to build a center of civilization and prosperity for the people.
L’immigration dans le roman actuel : enjeux sociaux et stratégies persuasives. Le cas de Soleil amer de Lilia Hassaine
Authors: Zdrada-Cok Magdalena
Published: July 2023

In her article, Magdalena Zdrada-Cok analyses the representation of immigration in Lilia Hassaine’s 2021 novel Soleil amer. She is concerned with argumentative and persuasive narrative strategies, the reterritorialization of immigration literature, and references to the realistic model of the novel.
Automated System for Freight Transportation Optimization on the Transport Network
Authors: Dekhtyaruk Mykola
Published: July 2023

An automated system for freight traffic optimization on a transport network has been developed, which is realized in the form of a complex computer program with application of the visual design environment of Embarcadero RAD Studio. The program complex consists of the main form from which two subprograms are loaded. The search of optimum routes performed by the routing optimization subprogram is used at transportations of freight on the set transport network based on different schemes (from one vertex (the supplier) to all other vertices (consumers), serially – from each vertex to all other vertices, and from two (or several) set of vertices to all other vertices). Freight delivery between the supply and consumption points was optimized by means of the freight transportation optimization subprogram, taking into account the restrictions on the volume of freight at the points of departure and destination.
Steroid Toxicity in Immune Thrombocytopenia – A Series of Unfortunate Events: A Case Report
Authors: Chattopadhyay Debranjani , Puthalath Athul , Nath Uttam Kumar
Published: July 2023

Immune thrombocytopenia (ITP) is a common bleeding disorder characterised by isolated thrombocytopenia, due to immune-mediated accelerated platelet destruction, usually without any specific or identifiable precipitating factor. ITP most commonly presents with bleeding associated with a low platelet count <100×109/L. Corticosteroids are the first line of treatment in adults. However, steroid-induced complications are widespread in patients with ITP, and sometimes are more atrocious than the risk of bleeding associated with thrombocytopenia. The authors report the case of a 29-year-old male with ITP with recurrent episodes of epistaxis, who was treated with prednisolone for 8 weeks and developed acne, steroid-induced hyperglycaemia, and urinary tract infection with epididymitis and pyocele. A few weeks later, the patient developed blurring of vision, and was found to have central serous chorioretinopathy. They were treated adequately for each of these complications, and had complete resolution of symptoms following cessation of steroids. While acne and hyperglycaemia are common, urinary tract infections with epididymitis and central serous chorioretinopathy are infrequent complications following steroid administration. The complexity of adverse events and the challenges in diagnosing and treating these unique complications prompted the authors to report this case.
Case report: Transected Hickman catheter and its thrombotic occlusion in a patient with idiopathic pulmonary arterial hypertension—can a catheter replacement be avoided?
Authors: Sławiński Grzegorz , Zieleniewicz Piotr , Faran Anna , Dąbrowska-Kugacka Alicja , Kurzyna Marcin , Kempa Maciej , Daniłowicz-Szymanowicz Ludmiła , Lewicka Ewa
Published: July 2023

A 25-year-old female with idiopathic pulmonary arterial hypertension (PAH), who had a Hickman catheter implanted for continuous intravenous epoprostenol infusion, was admitted to the clinic after inadvertently cutting the catheter with nail scissors during a routine dressing change. Approximately 7 cm of the external segment of the Hickman catheter remained intact, with the distal end knotted by paramedics. A decision was made to repair the damaged Hickman catheter. However, it was discovered that its lumen was completely occluded by thrombosis. Therefore, catheter patency was mechanically restored using a 0.035-inch stiff guidewire in a sterile operating theatre setting, under fluoroscopy guidance. Successful aspiration and catheter flushing were achieved. Continuity of the Hickman catheter was then restored using a repair kit (Bard Access Systems) as per the manufacturer's instructions, with no visible leakage thereafter. Epoprostenol infusion through the Hickman catheter was resumed 24 h later, and the patient was discharged in good general condition two days afterward.
Roseicella aerolata GB24T from bioaerosol attenuates Streptococcus pneumoniae-introduced inflammation through regulation of gut microbiota and acetic acid
Authors: Qin Tian , Yu Ting , Liu Yuqi , Wu Jiguo , Jiang Yunxia , Zhang Guoxia
Published: July 2023

Streptococcus pneumoniae (Spn) is the most common respiratory pathogen causing community-acquired pneumonia. Probiotics represent a new intervention target for Spn infection. Hence, the discovery and development of new potential probiotic strains are urgently needed. This study was designed to investigate the beneficial effect and mechanism of a new bacterium named Roseicella aerolata GB24T that antagonizes Spn at cellular and animal levels. The results revealed that GB24T strain inhibited the growth of Spn on sheep blood agar plates, forming inhibition circles with a diameter of 20 mm. In cultured bronchial epithelium transformed with Ad 12-SV40 2B (BEAS-2B) cells, Spn infection induced an elevation in the expression levels of interleukin-1β, interleukin-6, and tumor necrosis factor-α to 4.289 ± 0.709, 5.587 ± 2.670, and 5.212 ± 0.772 folds compared to healthy controls, respectively. Moreover, pre-infection with GB24T for 1.5 h almost eliminated the cellular inflammation caused by Spn infection. Additionally, male Sprague–Dawley rats infected with Spn were randomly allocated into two groups: GB24T pre-infection and Spn infection groups, with healthy rats as control. GB24T significantly alleviated inflammatory lung injury caused by Spn infection, which was associated with obvious changes in the abundance of gut microbiota and a trend toward enhanced secretion of short-chain fatty acids, especially acetic acid. Acetic acid was validated to be effective in alleviating inflammation due to Spn infection in cellular assays. Together, these findings highlight that GB24T strain is an important protective feature in the respiratory tract.
Longitudinal effects of choir singing on aging cognition and wellbeing: a two-year follow-up study
Authors: Pentikäinen Emmi , Kimppa Lilli , Pitkäniemi Anni , Lahti Outi , Särkämö Teppo
Published: July 2023

Introduction

While increasing evidence points toward the benefits of musical activities in promoting cognitive and emotional well-being in older adults, more longitudinal studies are needed to establish their long-term effects and uncover the mechanisms through which musical activities affect well-being. Most previous research has focused on instrumental musical activities, but little is currently known about the long-term effects of singing, even though neuroimaging evidence suggests that it is a versatile activity for the brain, involving a multitude of neural processes that are potentially beneficial for well-being.

Methods

We conducted a 2-year follow-up study to assess aging-related changes in cognitive functioning and emotional and social well-being with self-report questionnaires and standardized tests in 107 older adult choir singers and 62 demographically matched non-singers. Data were collected at baseline (T1), and at 1-year (T2) and 2-year (T3) follow-ups using questionnaires on subjective cognitive functioning, depression, social engagement, and quality of life (QOL) in all participants and neuropsychological tests in a subgroup of participants (45 choir singers and 41 non-singers).

Results

The results of linear mixed model analysis showed that in verbal flexibility (phonemic fluency task), the choir singers had higher scores already at T1 and showed no change over time, whereas the non-singers showed enhancement from T1 to T3. Furthermore, active retrieval of word knowledge (WAIS-IV Vocabulary task) showed significantly different changes from T1 to T2 between the groups (enhancement in choir singers and decline in non-singers), however lacking significant change within groups. Similar opposite trajectories of QOL related to social inclusion and safety of the environment (WHOQOL-Bref Environmental subscale) were significant from T1 to T3, but these changes were not significant within groups or at each timepoint. Within the choir singers, shorter experience in choir singing was associated with greater improvement in the vocabulary task over the follow-up period, suggesting that initiation of choir singing at older age induces some verbal benefits. There were no group differences in any other questionnaire or neuropsychological measure over time.

Discussion

In conclusion, our results suggest that choir singing at older age is associated with a sustained enhancement of phonemic fluency, while the effects on other verbal skills and quality of life are less clear.
Thermodynamics of Composition Graded Thermoelastic Solids
Authors: Cimmelli Vito Antonio
Published: July 2023

We propose a thermodynamic model describing the thermoelastic behavior of composition graded materials. The compatibility of the model with the second law of thermodynamics is explored by applying a generalized Coleman–Noll procedure. For the material at hand, the specific entropy and the stress tensor may depend on the gradient of the unknown fields, resulting in a very general theory. We calculate the speeds of coupled first- and second-sound pulses, propagating either trough nonequilibrium or equilibrium states. We characterize several different types of perturbations depending on the value of the material coefficients. Under the assumption that the deformation of the body can produce changes in its stoichiometry, altering locally the material composition, the possibility of propagation of pure stoichiometric waves is pointed out. Thermoelastic perturbations generated by the coupling of stoichiometric and thermal effects are analyzed as well.
Manufacturing of PAV-ONE, a Permeator against Vacuum Mock-Up with Niobium Membrane
Authors: Papa Francesca , Venturini Alessandro , Caruso Gianfranco , Bassini Serena , Ciantelli Chiara , Fiore Angela , Cuzzola Vincenzo , Denti Antonio , Utili Marco
Published: July 2023

The Permeator Against Vacuum (PAV) is one of the proposed technologies for the Tritium Extraction System of the WCLL BB (Water-Cooled Lithium-Lead Breeding Blanket) of the EU DEMO reactor. In this paper, the manufacturing of the first PAV mock-up with a niobium membrane with a cylindrical configuration is presented. This work aimed to demonstrate the possibility of manufacturing a relevant-size PAV to be later tested in the TRIEX-II facility. The adopted prototypical solutions are described in detail, starting with the methodology developed to join the Nb tubes with a 10CrMo9-10 (A182 F22) plate. Dedicated manufacturing and welding procedures, based on vacuum brazing with a nickel-based brazing alloy, were developed to solve the problem. This new kind of brazing was first analyzed to check the morphology of the joint and then tested to check its capability to withstand the TRIEX-II operative conditions. In parallel, the compatibility with a lithium-lead environment was analyzed by exposing samples of niobium and 10CrMo9-10 (A335 P22) to a flow of the eutectic alloy at 500 °C up to 4000 h. Finally, the PAV mock-up was installed in the TRIEX-II facility.
Past, Present, and Future of Critical Issues in Energy: Poverty, Transition and Security—A Systematic Review
Authors: Popescu Catalin , Hysa Eglantina , Panait Mirela , Çela Arjona
Published: July 2023

In these last decades, especially after the Russia–Ukraine war, the impact of energy related to issues, such as energy poverty, energy transition, and energy security have been heavily debated. To comprehend the conceptual development of this subject in the academic literature, few studies tackle the problems above by reviewing earlier research on the subject. Inspired by this interest and literature ago in this field, this study aimed to address the past, present, and future advancements of critical issues in this regard. Thus, in this review paper performed during February–April 2023, we employed the PRISMA method selecting and checking the review papers articles indexed in the three databases of Web of Science (WoS), Scopus, and JSTOR. Then, the research was followed by extending it and adding some other articles discovered on the gray literature. After a detailed classification of articles, a total of 2615 review articles were deemed valid for this analysis. The study’s key contributions is the classification of the some cluster themes for the metasynthesis analyses, which point to potential future directions with a special focus on governmental policies to pursue some macrolevel goals concerning energy poverty, energy transition, and energy security in our daily lives.
Performance Improvement of Permanent-Magnet-Synchronous Motors through Rotor Shape Optimization of Marine Blowing System with High-Speed Rotation
Authors: Yoon Keun-Young , Lee Sang-Taek
Published: July 2023

Currently, research is being carried out on the performance improvement of permanent-magnet-synchronous motors (PMSM) used in air conditioning and blowing systems for marine, as well as structural research, regarding their high-speed operation. Surface-mounted permanent magnet (SPM) motors used in marine propulsion and air-conditioning systems have the advantages of easy rotor manufacturing and a simple structure. However, owing to the structural characteristics associated with attaching a permanent magnet to the surface of the rotor, there is a risk of permanent magnet scattering when turning a rated load at high speed, and the rotor assembly is directly affected by the heat generated in the stator winding. Therefore, in this study, additional protrusions were proposed to prevent rotor scattering during high-speed operations. Additionally, optimization was performed to reduce the torque ripple at the rated load and the total harmonic distortion (THD) of the no-load-induced electromotive-force waveform generated by the protrusion. Consequently, the risk of scattering at high speeds was improved by securing the bonding force of the permanent magnet using the proposed structure, and the THD and torque ripple were reduced compared with those of the basic model through optimization. In addition, rotor structural stress analyses were conducted to solve the problem of scattering at high speeds and eigenmode analysis.