bluuebunny/crossref_metadata_2025 huggingface dataset:
Challenges of Online Medical Education in Khartoum Sudan during COVID-19 Pandemic 2021
Authors: Sabir Mustafa
Published: April 2023

Background: Education and teaching has been adversely affected since the emergence of COVID-19 pandemic. Millions of students have been affected by the closure of educational institutions, including medical colleges and universities to help students and save time, several institutes have turned to online education. Objective: To investigate the challenges of online medical education during covid19 pandemic in Khartoum state. Methodology: Descriptive Cross-Sectional study of six medical faculties which were selected by convenient sampling, an online author designed questionnaire was used. Excel and Statistical Package for the Social Sciences were used for data analysis, frequency tables and figures for analysis of data. Results: 328 medical students across six faculties responded 132 (40.2%) are males and 196 (59.8%) are females. 209 (63.7%) of them between 18 – 22 years old, 116 (35.4%) between 23 – 26 years old and only 3 (0.9%) exceeded 26. The study found that students encountered difficulties concerning poor internet connection, which encountered 242 (73%). Also the major challenges encountered by the students were not only technical issues but also teachers related issues as 234 (71.3%) stated that the incompetence of teachers while dealing with online platforms was a major issue for them. Conclusion: Within the scope of this study, students had a primarily unfavorable view of the implementation of online education, and a mixed approach is preferable.
Prospects for the Use of the Swim Bladder of the Silver Carp and the Possibility of its Application in Medicine
Authors: Vyacheslavovich Gurin Maxim
Published: April 2023

Fish waste can serve as a raw material for medical devices. Matrices for tissue regeneration are currently in great demand in medicine, which can be obtained from the walls of the swim bladder of fish, which has a collagen composition that has properties that are inert to recipients. The most suitable in terms of overall, morphological, biological properties for the manufacture of scaffolds is the wall of the anterior chamber of the swim bladder of the silver carp, which is widespread and is an object of aquaculture in our country. In the course of this work, for the first time, the size of the anterior chamber of the swim bladder was measured in silver carp of different weight categories. According to the results of the study, the dependence of the thickness and diameter of the surface of the anterior chamber of the swim bladder on the weight of the silver carp was established, which can be very useful in selecting the material according to the required criteria for the manufacture of implantable medical plates.
Variability of the Predicted Final Height in Idiopathic Short Stature Over Time
Authors: AmirAbbas Ahadiat Seyed
Published: April 2023

Background: Predicting the final height in children with idiopathic short stature is essential for starting growth hormone therapy. This study was conducted to assess final height estimation variability over time. Materials and Methods: In this cross-sectional study, children with idiopathic short stature were examined. Bone age and final height were estimated through the Greulich-Pile and Bayley-Pinneau method. This process repeated in the later visits with at least six months, and the results were compared statistically. The patients were classified based on the changes in predicted final height (PFH). Results: A total of 81 patients (46 boys, 35 girls) with a mean age of 11.09 years were enrolled. The calculated PFH in the first visit was 160.15±8.79 cm, which has decreased to 159.33±9.38 cm. Based on the second evaluation, 43 patients had few changes in PFH (±3 cm), 23 patients experienced a decrease in PFH of more than 3 cm, and 15 patients experienced an increase in PFH of more than 3 cm. A change in Tanner stage, weight gain, height velocity, target height, and the interval between the two evaluations were similar in all groups. Young under ten years had more decreasing in the PFH. Conclusion: Depending on bone age velocity, predicting the final height can change over time. As bone age velocity increases, PFH decreases more. PFH is also less reliable at younger ages and requires monitoring of growth and puberty and repeating final estimations later in life.
Analysis of Mode of Access to Quality Public Water Supply in Jalingo Metropolis, Taraba State
Authors: BB Ezekiel
Published: April 2023

This study analyse the mode of access to safe public water supply in Jalingo Metropolis. The study applied both survey and experimental research designs. The survey design involves sampling consumers' modes of accessing the public water supply, whereas the experimental approach involved laboratory investigation of water quality. A cross-sectional study carried out among 348 consumers who had access to public water supply and seven supply points each served by the three (3) production units of the Taraba State Water and Sewerage Corporation (TAWASCO) in Jalingo metropolis were selected. The standard procedures for water sample collection was done, which were analysed using the Wagtech Water Quality analysis machine in the World Health Organization Modern Laboratory located within Rural Water Supply and Sanitation Agency (RUWASA) office in Jalingo. Whereas, the questionnairs elicited information on the mode of access to water by the residents. The questionnaire data were analysed using frequency count and simple percentage. The result revealed that both the physical and chemical characteristics of public water supply in Jalingo metropolis are within the permissible limits of WHO and NSDWQ. The coliform count for the water samples were in trace amount and within the standard limits of WHO/NSDWQ. On the mode of access to safe water supply, the result revealed that majority of the respondents (80%) in Magami and ATC production channels do not have direct connection to the main water supply from RUWASA but gain access through indirect connection from neighboring houses/compounds. It was only from the Mile Six production channel that majority of the respondents (70%) reported that they access water from taps located within the house. This implies that most of the residents in the study area do not have connection to the main supply, which delivers water directly to their homes. The study therefore recommended that the government should ensure equitable distribution of portable water to the generality of the public.
Vandana Shiva: An Icon of Environmental Sustainability
Authors: L Kaur
Published: April 2023

Vandana Shiva is a well-known environmental activist and philosopher. She started her green journey with ‘Chipko Movement’. She is the founding director of ‘Research Foundation for Science, Technology and Ecology’. She formed ‘Navdanya’ to protect the native seeds sideways promoted biodiversity conservation, organic farming and intellectual property rights. She also put efforts on ecofeminism approach, indigenous people and human sustainability. The article comprises a brief introduction of Vandana Shiva, her personality and her contribution towards the Indian society, culture, nation, and environment at large.
Lateral Ridge Augmentation Using Cross-Linked or Non-Cross-Linked Collagen Membrane: A Pilot Randomized Clinical Trial
Authors: Haddad Mario
Published: April 2023

Purpose: The aim of this investigation is to test, in a lateral ridge augmentation model without simultaneous implant placement, the effect of using a cross-linked collagen membrane and a non-cross-linked collagen membrane on guided bone regeneration. Material and Methods: Edentulous alveolar ridges of less than 5 mm width were treated with guided bone regeneration using a glutaraldehyde cross-linked collagen membrane (CL) or a non-cross-linked collagen membrane (NonCL). In all treated cases the bone graft used was a combination of autogenous bone scrapings and deproteinized bovine bone mixed in a 1:3 ratio. Ridge measurements were recorded clinically (during augmentation surgery and during implant placement surgery) and radiographically on the CBCT scans (pre-op, 1 week post-op and at implant placement). All ridge measurements were recorded at 1, 3 and 5 mm from the ridge crest. Soft tissue healing was assessed during the follow-up visits at 1, 2, 4, 8, 12, 16, 20 and 24 weeks post-op. A histological analysis was performed on core biopsies retrieved axially from implant or pontic sites. Results: Four patients were recruited and randomly allocated to treatment groups. Ridge width gain (RWgain) was significantly better for the CL group as assessed clinically. At 1, 3 and 5 mm from ridge crest, the clinically assessed gain was respectively 5.50 mm ± 2.121, 5.40 mm ± 2.074, 5.60 mm ± 1.140 for the CL group and -1.33 mm ± 0.577, 1.33 mm ± 2.517 and 2.00 mm ± 1.000 for the NonCL group. Graft volume resorption was significantly higher in the NonCL group (62%) in comparison to the CL group (10.9%). No soft tissue complications occurred during follow-ups in neither group. Histologically, both groups showed signs of bone remodeling and vital bone formation. New bone formation in the NonCL group was 23.64 % ± 0.64 and in the CL group was 15.75% ± 8.73. Conclusion: Despite the limitations of this pilot study, The CL membrane showed better performance than the NonCL membrane in terms of ridge width gain and in terms of graft volume consolidation as assessed clinically and radiographically. Although no statistical comparison was possible, the NonCL group presented a higher percentage of new bone formation than the CL group.
Perception of Changing Roll among Orthodontists, Dentists and Laypersons in Central Indian Population- A Pilot Study
Authors: Mishra Kratika
Published: April 2023

Introduction: Esthetics is the main factor in choosing orthodontic treatment. It can be difficult to identify an esthetic issue because no two people think alike. When the line of dentition is rotated around a horizontal axis left-right, it is termed as roll. We are therefore attempting to evaluate the lack of clarity in perception among different groups. Aim: To assess and compare the perception of changing roll among orthodontists, dentists & laypersons. Materials and Methods: Two standard extra-oral photographs of a subject, were digitally manipulated in terms of roll. A sample of 120 evaluators [40 orthodontists, 40 dentists and 40 laypersons] judged both the images (original and altered) on a visual analogue scale ranging from 1 (the least attractive) to 10 (the most attractive). The responses were then analyzed by Statistical Package for Social Sciences 20.0 version. Inclusion criteria: Participants from Central India residing for more than 2 years. Results: The comparison of the VAS score assigned to images by orthodontists, lay persons and dentists (except orthodontists) was done using Friedman test, followed by post hoc analysis. The comparison of the VAS score assigned to different images by participants of any group was done using Kruskal-Wallis test. This was followed by post hoc analysis. A p value <0.5 was considered statistically significant. Confidence interval was set at 95.0%. This revealed that dentists were able to identify roll of 3 mm or more with significant difference. Orthodontists could identify roll at 1 mm itself, while laypersons found the image with roll of 0 mm and 4 mm attractive. Conclusion: The most attractive image in the opinion of the orthodontists were with 0 mm of roll, 0 mm and 4 mm of roll for laypersons and 2 mm of roll for dentists.
Práticas Escolares de História no Divã Terapêutico
Authors: Farias Kátia Sebastiana Carvalho dos Santos , Ernesto Eduardo Servo
Published: April 2023

O objetivo deste texto é problematizar, na tessitura de um projeto de pesquisa, práticas escolares socioculturais situadas, que mobilizam a disciplina de História, sugerindo um currículo voltado para os usos do conhecimento histórico nas dimensões práticas da vida. A desconstrução do projeto aparece como performance de diálogos ficcionais entre orientador e orientando, aliados a vozes de autores como Derrida, Wittgenstein e outros. A atitude teórico-metodológica tem referência nos conceitos de jogos de linguagem, terapia filosófica, desconstrução, terapia gramatical desconstrucionista e estudos curriculares. Os encadeamentos discursivos foram feitos por citação e enxertias que, propositalmente, bordejam as fronteiras entre o texto acadêmico e o literário. Os jogos de cena esclarecem, de modo terapêutico, que a construção de um projeto de pesquisa se dá por tensões, empatia, marcas, desconstruções e subjetividades.
dimensão narrativa na formação de professores de matemática
Authors: Nachtigall Cícero , Abrahão Maria Helena Menna Barreto
Published: April 2023

Neste artigo, buscamos problematizar como uma experiência com a aprendizagem invertida em um curso de formação de professores de matemática dialoga com os conceitos de experiência formadora (JOSSO, 2010) e experiência crítica (Woods, 1997, 1999). Este estudo é parte de uma pesquisa narrativa (auto)biográfica que busca compreender se, como e com que sentido o Seminário de Pesquisa-Formação possibilita aos sujeitos participantes significar e dar sentido às suas experiências formativas, especialmente no que se refere à experimentação de abordagens de ensino utilizando Tecnologias Digitais e ao potencial destas como possibilidade de fomento à autorregulação da aprendizagem. Em suma, os resultados parciais da pesquisa inauguram uma nova perspectiva na pesquisa em desenvolvimento e sinalizam que a experiência de aprendizagem invertida representou uma experiência crítica e formadora.
Artesanias narrativas
Authors: Reis Graça Regina Franco da Silva , Campos Marina Santos Nunes de
Published: April 2023

O presente texto objetiva apresentar pesquisa realizada no contexto de uma extensão universitária voltada para pensar os modos pelos quais docentes tecem saberes próprios na/da profissão, criando currículos cotidianamente. Reconhece a indissociabilidade dos procedimentos metodológicosteóricospolíticos e, para isso, faz uso de referenciais das pesquisas nosdoscom os cotidianos e da pesquisa narrativa, pensando essas narrativas como processos artesanais. As considerações provisórias apontam que as narrativas docentes, ao serem documentadas e divulgadas, além de oportunizarem a autoformação de quem as vive, podem oferecer subsídios para a formação docente e para a formulação de políticas educacionais voltadas para a formação de professores.
(Auto)biografia, ciência e arte
Authors: Souza Elizeu Clementino de
Published: April 2023

Ideais relacionais entre (auto)biografia, ciência e arte entrecruzam análises de questões de formação da autobiografia de Oliver Sacks (2015), a partir de dois argumentos chaves que organizam as entradas do texto. A primeira descreve, de forma abreviada, aspectos epistemológicos e teórico-metodológicos da pesquisa (auto)biográfica; e a segunda centra-se na análise de questões de formação, escolarização, relações familiares e atuação profissional vividas por Sacks. Objetiva-se situar a bricolagem humana, através de eventos sucessivos experienciados pelo biógrafo, num diálogo entre memórias, aventuras, conflitos, desafios pessoais e profissionais, ao revelar percursos de vida-formação marcados por discursos biográficos da experiência do narrador e dimensões temporais de sua vida-formação.
Methods of Enhancing Energy Efficiency at the Stage of Construction of High-Rise Residential Buildings
Authors: Sheina S. G. , Girya L. V. , Shvets A. E. , Larin N. S.
Published: April 2023

Introduction. People’s growing needs in energy resources in conditions of resource deposits depletion makes it relevant the development of methods of enhancing buildings energy efficiency. The article notes the importance of increasing the level of energy efficiency by selecting a set of measures for the efficient use of energy resources at all stages of the life cycle. The analysis of Rostov-on-Don housing stock and positive trend in housing commissioning capacity growth in Russia point at the need to enhance the energy efficiency of buildings being under construction.

Materials and Methods. Energy efficient methods are as follows: the application of modern thermal insulation materials and "green" building technologies. The latter implies the approach to the design of buildings inferring minimized impact on the environment at all stages of the life cycle - from a building’s design to its elimination - including the application of "green" technologies: Smart Energy Glass windows, recuperators, solar panels.

Results. The results of energy-efficient technologies application were considered on the example of “Ostrovsky” residential compound being under construction in Rostov-on-Don. As a result the planned energy efficiency class B (high) was upgraded to A + (very high), which corresponds to one of the green building criteria.

Discussion and Conclusions. The use of energy efficient measures in construction of residential buildings allows to save considerable amounts of energy and resources at the stage of high-rise buildings operation, resulting in their energy efficiency class enhancement.
Development of Laboratory-made Compositions of Concrete Based on the Certain Raw Materials and Restrictions of the AKKUYU NPP Construction
Authors: Razveeva I. F. , Ivanchenko S. A. , Bondarenko I. V. , Kotenko M. P. , Fedchishena A. A.
Published: April 2023

Introduction. Concrete is one of the materials most frequently used in construction thus the technologies of its manufacturing are being constantly improved. In our article we will develop the laboratory-made compositions of concrete based on the certain raw materials resources and restrictions existing at the construction site of one of the nuclear power plants in the Republic of Türkiye. One of the results of elaborating the concrete composition design technology is the selfcompacting concrete that fosters sustainable construction due to significant reduction of energy consumption. Self–compacting concrete is a type of concrete that can completely fill in the formwork only by gravity, without need for concrete consolidating by vibration. Its high fluidity and filling capacity are its advantages over conventional concrete. Self-compacting concrete has high fluidity, high water retention capacity, good strength. The aim of the study was to obtain the laboratory-made compositions of concrete based on the certain raw materials resources and restrictions existing at the construction site.

Materials and methods. The list of raw materials potentially meeting the design documentation requirements has been specified. The concrete compositions using various aggregates were selected, the minimum amount of cement was determined, aimed among other things at corrosion resistance improvement.

Results. Based on the restrictions existing at the construction site and according to the results of raw materials analysis including their oxide composition specification, 5 compositions were developed for each of NPP engineering structures.

Discussion and conclusions. The study has completed all the tasks set forth, the main of which are: analysis of the raw materials market, laboratory studies of raw materials, specification of their actual physical and mechanical properties, identification of components meeting the standards and requirements, obtaining the laboratory-made compositions of concrete mixtures classified by their designation. The perspectives for further research are indicated.
Increasing the Strength and Rigidity of Reinforced Concrete Eccentrically Compressed Elements with Carbon Fiber Reinforcement
Authors: Georgiev S. V. , Mailyan D. R.
Published: April 2023

Introduction. Existing methods of reinforced concrete structures strengthening are very expensive and time-consuming. The development of new strengthening systems allowing to reduce time and cost of works is perspective and relevant task. Modern methods of strengthening with composite materials are insufficiently studied in Russia. Particularly if the behavior of composite materials in the reinforced concrete structures is concerned. The lack of research in this area leads to the overrun of materials and increase in the cost of structures’ strengthening. The aim of this work is to study the relative deformations of composite materials in the longitudinal and transverse directions during the operation of eccentrically compressed flexible reinforced concrete poles.

Materials and methods. The factual basis for the research are the results of experimental studies of the strength and deformability of eccentrically compressed reinforced concrete poles, strengthened with various types of composite external reinforcement. In the most loaded zones of the composite reinforcement, the 2 cm-long strain gauges were glued, capable of detecting changes in relative deformations up to 0.001 mm. In total, the results of operation of 5 poles were used in the analysis. During the experiment, deflections and relative deformations of concrete and composite materials were determined.

Results. In the result of experimental studies, relative deformations of composite materials in the longitudinal and transverse directions were obtained. The measurements were carried out at a stepwise increasing load equal to 10 % of the breaking load. Based on the data obtained, graphs of the dependence of the change in relative deformations on the load levels were plotted for each tested sample. In addition to the readings of strain gauges, deflections of tested samples were obtained during testing and graphically presented.

Discussion and Conclusions. The obtained experimental data on deflections and relative deformations in composite materials made it possible to determine the zones of the most and least strained sections of the composite reinforcement. Based on the analysis of these data, conclusions were drawn about the development of new strengthening systems that can significantly save the amount of composite materials used without reducing their efficiency.
Construction of Healthcare Facilities Using Energy Efficient Technologies
Authors: Sheina S. G. , Fedorovskaya A. A. , Kalitkin A. P.
Published: April 2023

Introduction. According to the Low-Carbon Development Strategy of the Russian Federation 2050, the special attention is allocated to cities, to evaluation of the quality and comfort of population life-activity, taking into account the implementation of energy-saving measures and other technological solutions, as well as to design and construction ensuring zero carbon dioxide emissions. The quality of people’s life is characterized by the availability of social infrastructure and adjacent spaces including: educational and healthcare institutions, as well as sports, recreation and cultural facilities. Planning the optimal development of healthcare institutions network with respect to the energy efficient measures, requires the integral system of urban territory evaluation, which is the main aim of the present study.Materials and methods. A complex task requires a multifaceted approach to systematizing the information about the state of urban territory in the following spheres: energy efficiency, green technologies, healthcare facilities network and its condition, development and character of the urban territory, environmental stability etc. In the context of low-carbon development the optimization of the healthcare network provided the use of energy-saving technologies becomes possible thanks to the use of the geographic information system.Results. As a result of the study held with application of the systemic approach to the phased planning of the healthcare institutions network optimization and using the geographic information system as a tool for territorial and spatial analysis, there were identified the main districts that require expansion and development of social infrastructure, namely healthcare institutions, and the urban territory features — infrastructure indicators (transport) and comfort of living indicators (urban greening evaluation). The basic opportunities and ways to improve energy efficiency of healthcare buildings were determined.Discussion and Conclusions. The long-term development of the healthcare institutions network in the city is fulfilled by means of the phased planning method implicating the differentiated normative-target approach, multi-criteria evaluation, which allows to organise sufficient medical care under conditions of the specific residing system. The implementation of the information modeling technologies, green and energy saving technologies will ensure improvement of the comfort of staying level, reduce energy consumption and ease the load on the municipal infrastructure of the city.
Flooding Hazard Assessment of Built-Up Lands Using Modern Geographic Information Systems
Authors: Prokopova M. V.
Published: April 2023

Introduction. The construction and operation of buildings and structures on the banks of rivers and other water reservoirs with rapidly changing water level are associated with the hazard of territories flooding and underflooding, which can lead to major material damage and even endanger the life and health of people. It’s very important to make a reliable forecast of floodable and underfloodable zones and to develop possible engineering protection measures for such territories, as well as evacuation or rescue plans for cases of emergency. In this article by the example of 2 allocated for construction potentially flooded plots in the Tuapse district of the Krasnodar region, the quantitative flooding hazard assessment is carried out based on the use of the geographic information system QGIS.Materials and methods. In the study there were used: the analysis of existing methods for assessing underflooding and flooding of territories; the long-term observation materials of the water level in rivers and of the largest floods on the studied plots; the analysis of methods of engineering protection of territories from underflooding and flooding; the hydrogeological and hydrological processes modeling using the modern geo information system QGIS; the development of recommendations for engineering protection of the built-up lands and for design of buildings’ and structures’ bases and foundations.Results. As a result of modeling of the underflooding and flooding processes of 2 plots of the prospective built-up lands of the Tuapse district of Krasnodar region in the geo information system QGIS, the boundaries of potential flooding zones and varying probability water rise levels have been identified. Graphical results of modeling in the QGIS system have been presented and graphs of flooding and underflooding levels have been plotted in given sections and along plot’s outline.Discussion and Conclusions. The boundaries of the most hazardous built-up lands have been identified and the engineering protection measures have been reasoned for them. Recommendations have been developed on design and construction of buildings and structures on the plots taking into account the forecasted hazards of underflooding and flooding.
Analysis of the renovation area to create a concept for its integrated development
Authors: Chubarova K. V. , Movina V. A. , Ivanov A. D. , Khutorenko A. V.
Published: April 2023

Introduction. Integrated territorial development is one of the key areas in modern urban planning, which main goals are to ensure the sustainable development of cities and settlements and to create a high-quality environment and favorable conditions for people’s livelihoods. The mechanisms of integrated territorial development make it possible to approach the renewal of urban development in a comprehensive manner and provide territories with the necessary infrastructure.

Materials and Methods. Investment projects of integrated territorial development need a pre-project analysis in order to identify the most optimal strategies of its redevelopment and renovation. The pre-project analysis should take into account not only the basic comprehensive assessment indicators, but also identify potential target audience and the main stakeholders of the project needs, which will further increase its investment attractiveness. The pre–project assessment should include factors for evaluation the site according to a set of criteria - urban planning, environmental and economic. The article provides a methodology for the territory assessment by a set of factors that take into account the listed criteria. The research was carried out using the methodology of a systematic approach to the scientific problem of improving the urbanized territories environment quality, methods of subject-logical and comparative analysis, and geoinformation technologies.

Results. Pre-project analysis results of the integrated territorial development area located in the city of Rostov-on-Don are considered in order to identify the most optimal approaches to its further use. The main characteristics of the territory obtained with the help of regulatory and legal documentation, environmental and geological conditions analyzed using a geoinformation system, and economic evaluation criterion, including requests from the intended target audience of the project, are presented.

Discussion and Conclusions. The proposed methodology makes it possible to identify the most optimal ways for the study area development through a systematic approach to the integrated territorial development problem, taking into account the directions of city urban development and the investors and territory future users interests.
Life Cycle Analysis of Steam and Gas Turbine CHP Plants
Authors: Bespalov V. I. , Gurova O. S. , Lysova E. P. , Grishin G. S.
Published: April 2023

Introduction. When choosing the optimal heat and electric power generating technology, the most promising in terms of ensuring maximum credibility of obtained results is the method of assessing the environmental and economic efficiency of various objects, which implies the application of the studied object life cycle assessment method to be the initial main stage. The authors tackle the problem of assessing the life cycle of steam and gas turbine CHP plants for selecting the optimal heat and electric power generating technology. The aim of the study is to define the main stages and their corresponding specifications of steam and gas CHP plants’ life cycle as facilities generating heat and electric power within the structure of various purpose urban complexes.

Materials and methods. The authors' research is based on the object life cycle assessment method as well as on the quality management system and the theory of selecting and evaluating the various objects’ environmental and economic efficiency.

 Results. Based on the research, it was found that:

 -CHP plants are of particular interest in terms of selecting the optimal cogeneration technology because many technological types of this energy are implemented there;

 - the life cycle assessment method may well be implemented at CHP plants;

 - the authors have taken a steam and gas turbine CHP plant as an object for the life cycle analysis because it has significant advantage over other similar technologies;

 - the life cycle of a steam and gas turbine CHP plant includes three main stages: construction (erecting, setting-up and commissioning), operation and disposal, which have the largest share in the overall life cycle

; - the most significant processes have been identified for each of the distinguished life cycle stages of a steam and gas turbine CHP plant.

Discussion and conclusion. The performed life cycle analysis led to the conclusion that the life cycle of a steam and gas turbine CHP plant, the one commonly used in real life and representing particular interest in terms of choosing the optimal technology, has three main stages occupying the largest share in the overall life cycle: construction, operation and disposal. Besides, the most significant processes were identified and described for each of the distinguished life cycle stages of a steam and gas turbine CHP plant.
Influence of Outrigger Systems on the Spatial Rigidity of an Object of Parametric Architecture
Authors: Kravchenko G. M. , Trufanova E. V. , Vysokovsky D. A.
Published: April 2023

Introduction. In the existing building industry standards and regulations there are currently put into effect the requirements for the spatial rigidity of buildings and structures. For fulfillment of the set requirements various design solutions are used: outrigger systems, edge beams, subrafter constructions etc. Currently the most common design solution for high-rise buildings is integration of the outrigger systems into a building frame.

Materials and methods. The evolution of forming the epicycloid cylindrical surface in the SAPPHIRE software was investigated. Based on the results of the study, the optimal form of a parametric architecture object was determined. Five versions of an object design solutions were developed. Modeling of the elaborated building frames was performed in the LIRA-SAPR software based on the slab-beam design model by the finite element method.

Results. The analysis of static and dynamic calculations results enables to choose the rational version of a parametric architecture object frame and to provide the necessary strength attributed with maximum possible lean consumption of the materials for the outrigger storey. In the course of experiment the efficiency of a building frame dynamic properties regulation is defined, the technical and economic indicators of the proposed versions and design solutions aimed at increasing the overall rigidity of the building are compared.

Discussion and conclusion. A comparative analysis of the dynamic properties regulation efficiency was carried out for each structural scheme. The most rational scheme for a high-rise building was selected, the one meeting the strength and rigidity requirements and proving to be the most material saving. In addition to the efficient dynamic properties regulation, the horizontal stiffening rings were implemented as a constructive solution to prevent and protect a high-rise building from progressing impact which accounts for complete or partial collapse of the building.
Technology of the Reinforced Concrete Structures Post-Tensioning
Authors: Borisov D. I. , Semenov M. V. , Pismenskov M. V. , Aksenov V. N.
Published: April 2023

Introduction. A large number of building materials is used for construction of buildings and structures, the reinforced concrete is being one of them. It has the leading position when choosing the material for construction of buildings and structures. However, like any other material, the reinforced concrete has its disadvantages: apart from considerable weight of the reinforced concrete structures, the impossibility to cover with them the large spans can also be referred to disadvantages, as the increase of structures’ spans impairs the economic efficiency of using the reinforced concrete. To handle this, engineers have developed the technology of steel reinforcement prestressing. Thanks to prestressed reinforcement, it has become possible to increase the spans and reduce the cross section of the reinforced concrete structures. This scientific paper investigates the technology of steel reinforcement post-tensioning.Materials and Methods. The materials for the research were obtained from the available scientific editions, articles, journals and Internet blogs. The documents’ content analysis method was used to write the article. In the course of the research, it is planned to find the information about the post-tensioning technology. The object of the study is the steel wire-rope post-tensioning.Results. Thanks to the research, the data on the history of origin of the reinforcement prestressing technology was obtained and the advantages and disadvantages of post-tensioning were analysed.Discussion and Conclusions. After the research, the data on the technology of steel reinforcement post-tensioning was obtained, the application of the technology in Russia in the construction of industrial and civil facilities was considered. This technology allows increasing the spans and reducing the cross section of the reinforced concrete structures.
PERANCANGAN SISTEM INFORMASI PEMESANAN KEDAI MTC 99
Authors: Nidhi Suryono Muhammad Nur Rachman , Isnandar Ahmad Yazid , Tajuk Rizal Mohammad Hasan , Simbolon Tegar Oktavianto , Sanni Bella Trinanda , Fitri Anindo Saka
Published: April 2023

Perkembangan teknologi informasi membuat sistem pemesanan di kedai MTC99 perlu dikembangkan ke arah digital. Banyaknya layanan yang tersambung pada jaringan internet seringkali digunakan untuk mempermudah kehidupan manusia, karena dengan mendigitalisasikan sistem nya akan mendapat banyak manfaat salah satunya lebih efektif dalam proses dan laporan nya. Perancangan website ini merupakan solusi untuk Kedai MTC99 dalam melakukan perubahan digitalisasi proses bisnisnya. Kedai MTC99 sendiri merupakan usaha perdagangan yang menjual minuman dan penyewaan tenant di Rungkut Kidul, Surabaya. Pada pembangunan sistem ini dibutuhkan data yang menjadi pendukung, dapat diperoleh dengan menggunakan teknik pengumpulan data seperti: observasi, wawancara dan pustaka. Perancangan model website divisualisasikan dengan menggunakan Unified Modeling Language (UML) menggunakan metode ICONIX process dalam mengimplementasikan pengembangannya. Dengan diterapkannya website ini diharap dapat  terjalin hubungan yang erat antara pihak Kedai MTC99 maupun pelanggan yang ingin/akan  memesan makanan dan minuman di kedai MTC 99.
RANCANG APLIKASI PENJUALAN BERBASIS WEB TOKO AR PERFUME
Authors: Deswita Rini Ni Made Berliana
Published: April 2023

Abstrak. Perkembangan teknologi internet dalam dunia perdagangan atau yang sering kita dengar dengan istilah e-commerce kini semakin meningkat. AR Perfume merupakan sebuah toko yang bergerak dibidang penjualan parfum. Toko AR Perfume berlokasi di Putat Gede Timur III No.56 Surabaya. Sistem pembayaran yang dilakukan pada toko ini masih dilakukan secara manual yaitu adalah dengan cara pembeli datang ke toko langsung. Dengan cara manual tentu saja banyak menimbulkan kesulitan bagi pemilik dalam pengolahan data maupun pembuatan laporan, serta menimbulkan kesulitan juga bagi pembeli karena harus datang langsung ke toko untuk mengantri. Dengan adanya permasalahan tersebut, kami berencana untuk merancang sebuah aplikasi berbasis web yang bertujuan agar proses transaksi pembayaran pada Toko AR Perfume berjalan lebih cepat, mudah, dan akurat dengan memanfaatkan teknologi berbasis komputer. Metode pengumpulan data yang digunakan pada penelitian ini adalah dengan observasi dan wawancara yang dilakukan secara langsung ke Toko AR Perfume. Framework yang digunakan untuk merancang aplikasi berbasis pada Toko AR Perfume adalah UML (Unified Modelling Language) atau yang dikenal dengan ICONIX Process. Hasil akhir dari penelitian ini yaitu berupa desain antarmuka website AR Perfume yang nantinyaakan dikembangkan pada tahapan implementasi.Abstract. The development of internet technology in the world of commerce or what we often hear as e-commerce is now increasing. AR Perfume is a shop engaged in the sale of perfume. The AR Perfume store is located at Putat Gede Timur III No.56 Surabaya. The payment system that is made at this shop is still done manually, namely by the way the buyer comes to the store directly. Manually, of course, it creates a lot of difficulties for owners in data processing and production reports, as well as causing difficulties for buyers because they have to come directly to the store to queue. Given these problems, we plan to design a web-based application that aims to make the payment transaction process at the AR Perfume Store run faster, easier and more accurately by utilizing computer-based technology. The data collection method used in this study was observation and interviews conducted directly at the AR Perfume Shop. The framework used to design applications based on the AR Parfum Store is UML (Unified Modeling Language) or what is known as the ICONIX Process. The end result of this research is in the form of an AR Perfume website interface design which will later be developed at the implementation stage.
PERANCANGAN UI/UX MENGGUNAKAN METODE USER CENTERED DESIGN BERBASIS WEB PADA PERHITUNGAN LUASAN KUMUH BALAI PRASARANA PERMUKIMAN WILAYAH LAMPUNG
Authors: Faisal Muhammad , Muda Mona Arif , Septiana Trisya , Komarudin M
Published: April 2023

Dalam perancangan aplikasi web perhitungan luasan kumuh membutuhkan UI/UX sebagai bagian dari pembuatan website, UI/UX dirancang sesuai dengan kebutuhan user, UI/UX yang baik akan berdampak pada pengalaman para pengguna aplikasi web. Perancangan UI/UX menggunakan metode User Centered Design (UCD), metode UCD digunakan untuk memaksimalkan interaksi dengan user tentang kebutuhan user pada aplikasi. Pada aplikasi web perhitungan luasan kumuh terdapat fitur yang mempermudah user dalam melakukan pendataan, fitur ini bertujuan untuk mempersingkat waktu yang dibutuhkan untuk pendataan. Tampilan UI yang telah dirancang kemudian dievaluasi menggunakan System Usability Scale (SUS), SUS menghasilkan nilai skor sus yang menentukan tingkat keberhasilan UI, tampilan UI aplikasi perhitungan luasan kumuh mendapatkan nilai 84,5 dengan grade B dan dikategorikan acceptable yang berarti tampilan UI aplikasi perhitungan luasan kumuh sudah mencukupi kebutuhan user.
RANCANG BANGUN APLIKASI WEB PENDETEKSI WARNA PADA PIXEL GAMBAR DENGAN KNN CLASSIFIER
Authors: Sakti Kadafi Eka , Mardiana Mardiana , Pradipta Rio Ariestia
Published: April 2023

Abstrak. Manusia memiliki keterbatasan dalam mendeteksi ratusan warna dalam gambar secara presisi. Banyak orang awam mengalami kesulitan dalam mengklasifikasikan sebuah warna pada benda ,pada umumnya orang awam hanya mengetahui warna dasar atau warna yang umum. Sehingga aplikasi web bernama DYSCO ini dibuat untuk mempermudah dalam mengklasifikasikan sebuah warna. DYSCO merupakan aplikasi pendeteksi warna berbasis web dengan menggunakan metode K-Nearest Neighbors. Aplikasi web ini dibuat dengan menggunakan bahasa pemrograman Python dan kerangka kerja mikro Flask.  Aplikasi web ini dapat menampilkan informasi warna pixel suatu gambar yang di-upload pengguna ke dalam web, dengan mengektraksi fitur RGB pada gambar tersebut. Metode pengembangan  yang digunakan adalah AI Project Cycle dengan 6 tahapan yaitu Problem Scoping, Data Acquisition, Data Exploration, Modelling ,Evaluation dan Deployment.  Pembuatan aplikasi web pendeteksi warna pada pixel ini telah berhasil   dilakukan dan sudah   mampu mendeteksi  dan  memberikan informasi warna yang di klik pengguna pada gambar, dengan akurasi yang tinggi yaitu 0,844. Aplikasi web juga sudah dapat memenuhi fungsi fungsi utamanya, ditunjukan melalui pengujian menggunakan teknik Usability Testing berdasarkan ISO 9421-11 untuk mengukur Efectivity, Eficiency dan Satisfaction, dengan 10 orang responden awam. Hasil Usability Testing mendapatkan skor yang sangat bagus dengan nilai efectivity yaitu 100% dengan predikat sangat efektif, nilai eficiency yaitu 32,6 detik dengan predikat sangat cepat, dan nilai satisfaction yaitu 84 dengan predikat dapat diterima (acceptable).
FLEXURAL PERFORMANCE OF REINFORCED CONCRETE BEAMS RETROFITTED USING FERROCEMENT WIRE MESH
Authors:   Chittagong University of Engineering & Technology, Zisan Md. Basir , Biswas Biplob Kanti ,   Chittagong University of Engineering & Technology, Hasan Md. Abul ,   Chittagong University of Engineering & Technology, Chanda Mithu ,   Chittagong University of Engineering & Technology, Dhar Anindya ,   Chittagong University of Engineering & Technology
Published: April 2023

Introduction: Ferrocement is a low-cost material that can be utilized as a replacement for expensive fiber-reinforced polymer (FRP), which is generally used for retrofitting structural and non-structural reinforced concrete members. The objective of this paper is to investigate the effectiveness of wire mesh in the retrofitting of flexural members such as reinforced concrete beams. It also investigated the flexural capacity of the beams, which are reinforced with wire mesh as a partial or complete replacement of regular rebar. The orientations and various forms of the wire mesh within the beam section are taken into consideration. The finite element method is used to model and analyze the beams. The structural performance of the studied beams, including the load-deflection relationship, first cracked and ultimate cracked loads, crack patterns, and flexural stress, were evaluated using the finite element method. The finite element model of the beam which is reinforced with wire mesh has been verified with experimental results. The results show that beams retrofitted with ferrocement or beams in which rebar is replaced by wire mesh have superior flexural performance and low crack depth. The beams retrofitted with wire mesh have a high ultimate load-carrying capacity and ductility. The confinement of three-sided wire mesh improves the flexural performance of the beam. It is observed that flexural performance remains the same when the length of the wire mesh exceeds half of the span length.
Persepsi Pegawai Tentang Pemeliharaan Sarana di Kantor Dinas Sosial Kota Padang
Authors: Revo Utama  , Hanif Al Kadri  , Indra Jaya
Published: April 2023

Pemeliharaan sarana kantor adalah salah satu bagian dari pengelolaan sarana yang perlu dilakukan untuk menjaga kualitas sarana kantor tetap bagus. Pemeliharaan sarana penting dilaksanakan supaya keadaan barang dalam kondisi terjaga atau siap untuk dipakai dan barang bertahan lebih lama. Sarana kantor adalah salah satu dari faktor pendukung bagi suatu lembaga untuk berhasil mencapai tujuan. Sarana kantor merupakan hal penting yang harus dipersiapkan secara maksimal, sehingga dapat menunjang pekerjaan kerja pegawai agar lebih profuktif. Penelitian ini dilakukan untuk mendapatkan data tentang bagaimana pemeliharaan sarana kantor di Dinas Sosial Kota Padang yang dinilai dari segi membersihkan, menyimpan, mencegah dan memperbaiki. Teknik pengambilan sampel Total Sampling adalah teknik yang digunakan penulis dalam pengambilan sampel penelitian, dimana sampel mengambil jumlah seluruh populasi yang ada yaitu 36 orang. Model Skala Likert adalah instrumen penelitian yang penulis gunakan dengan lima pilihan jawaban yang disediakan. Dilihat dari hasil analisis data yang telah penulis lakukan, maka didapati pemeliharaan sarana kantori di Dinas Sosial Kota Padang termasuk dalam kategori baik dengan skor rata-rata 4,01. Diharapakan nantinya pemeliharaan sarana di Kantor Dinas Sosial  Kota Padang bisa terus bertahan pada tingkat yang baik dan bisa naik ke level sangat baik.
Strategi Kepala Sekolah dalam Meningkatkan Kompetensi Profesional Guru di SMK Negeri 10 Padang
Authors: Rahmadani Selli , Marsidin Sufyarma Marsidin
Published: April 2023

Tujuan dari penelitian ini untuk mengetahui kompetensi profesional guru, strategi apa yang dilakukan kepala sekolah untuk meningkatkan kompetensi profesional guru, faktor pendukung dan faktor penghambat serta solusi yang diharapkan untuk mengatasi hambatan-hambatan dalam upaya meningkatkan kompetensi profesional guru. Jenis penelitian yang digunakan dalam penelitian ini adalah penelitian deskriptif dengan pendekatan kualitatif. Teknik pengumpulan data dilakukan melalui observasi, wawancara dan dokumentasi. Subjek penelitian adalah kepala sekolah, waka kurikulum dan guru di SMK Negeri 10 Padang. hasil yang didapatkan dalam penelitian ini menunjukan bahwa strategi kepala sekolah yang optimal dapat membantu meningkatkan kompetensi profesional guru disekolah, yang mana didukung dengan adanya kerjasama yang baik, sarana dan prasarana yang memadai serta dana yang cukup untuk melakukan suatu kegiatan-kegiatan untuk meningkatkan kompetensi guru.