bluuebunny/crossref_metadata_2025 huggingface dataset:
Analisis Hubungan Perceived Ease of Use dan Kualitas Layanan Terhadap Rasa Percaya Pada Alat Digital Radiografi Dalam Meningkatkan Word of Mouth Studi Pada Rumah Sakit Rujukan Covid-19
Authors: Ayatulloh Dimyati , Wardani Ratna
Published: December 2022

Background: With the times, Convention Radiography (RK) was replaced by Digital Radiography (RD) because film printing is more efficient, archiving can be done digitally, reducing the risk of losing film due to file backups, and is more environmentally friendly because it does not require chemicals. The purpose of the study was to analyze the perceived ease of use influence on the radiographer's confidence from the digital radiography tool so that word of mouth was achieved to other radiographers at the Covid-19 Referral Hospital.Methods: Design observational research with a cross-sectional approach. The population of all radiographers from 180 Covid 19 referral hospitals has used Digital Radiography. A sample of 170 respondents with cluster random sampling technique. The variables in the study were perceived ease of use, quality of service, user confidence and word of mounth. Research instruments use questionnaire sheets. The analysis used is bivariate analysis and path analysis with SPSS 23 and STATA 13.Results: Design observational research with a cross-sectional approach. The population of all radiographers from 180 Covid 19 referral hospitals has used Digital Radiography. A sample of 170 respondents with cluster random sampling technique. The variables in the study were perceived ease of use, quality of service, user confidence and word of mounth. Research instruments use questionnaire sheets. The analysis used is bivariate analysis and path analysis with SPSS 23 and STATA 13.Conclusions: The development of this technology is used as an excuse that facilitates the subscription of transportation services in fulfilling the quality of their services and makes it easier for consumers or the public to access health services. Healthcare providers mostly achieve success because they are influenced by word of mouth communication or word of mouth marketing.
IMAGE QUALITY OF T2W TSE CARTESIAN VERSUS T2W TSE BLADE, A QUANTITATIVE ANALYSIS ON AXIAL CERVICAL MRI
Authors: Rochmayanti Dwi , Murniati Emi , Fatimah Fatimah , Sulistyadi Akhmad Haris
Published: December 2022

Backgroud: blurring artifact is an issue in axial cervical MRI using T2 Turbo Spin Echo (TSE) weighted Cartesian. T2W TSE BLADE is potential to substitute its shortcomings. This study aims to analyze the image quality and artifacts between T2W TSE Cartesian and T2W TSE BLADE on axial cervical MRI examination and to determine the better sequence in producing image quality.Methods: this is a quantitative research with descriptive approach. 7 volunteers were scanned for cervical axial examination with T2W TSE, T2W TSE Cartesian and T2W TSE Blade. Images were processed in MathlabTM. SNR of intervertebral disc, spinal cord and CSF were measured using ROI. Image resolution were find out from pixel spacing in DICOM info. Blurring artifact were analyzed by comparing the signal of blurred area to the background noise. Data were analyzed using descriptive statistics.Results: SNR of T2W TSE Cartesian and T2W TSE BLADE were 22,144 and 17,532 (intervertebral disc), 20,952 and 16,786 (spinal cord), and 16,717 and 12,883 (CSF) respectively. Image resolution (mean) were 0,391 pixel/mm (T2W TSE Cartesian) and 0,625 (T2W TSE BLADE). Blurring artifact were 8,161 (T2W TSE Cartesian) and 6,826 (T2W TSE Blade).Conclusion: T2W TSE Cartesian was superior in pixel intensity and SNR, while the blade technique was superior in terms of spatial resolution and artifacts reduction. Thus, it is recommended to be applied in clinical field if the SNR or image detail is the priority.
Innovative Financial Methods for Optimising the Solvency of Accounts Receivable and Their Impact on The Efficiency of a Company’s Operations
Authors: Kravtsov Andrii
Published: December 2022

Timely optimisation of accounts receivable is important for the development of business and the overall economy, because it actively contributes to reducing the “frozen” debt funds, reducing the need for additional sources of financing, and, accordingly, increases the company’s liquidity, which, in turn, improves its reputation as a reliable partner. Due to the imperfection of the financial system and the unpopularity of modern debt optimisation measures at Ukrainian enterprises, it is particularly relevant to analyse the real problems of forming accounts receivable and investigate promising areas for its reduction. The purpose of the study is to consider and test innovative financial methods for optimising counterparty debt to the enterprise in Ukraine, including factoring and insurance of accounts receivable. The practical significance of the study is as follows: based on the analysis of the current state of accounts receivable, the use of factoring services for its optimisation is proposed; using the modelling method, key forecast indicators of liquidity at the enterprise under study are determined, the areas of insurance of accounts receivable are formed, the effectiveness of the proposed measures is substantiated. The study summarises the theoretical foundations of optimising accounts receivable in the system of ensuring the efficiency of an enterprise. The analysis of the financial and economic state of the business is carried out. The analytical support of a system of indicators and assessment of the quality of accounts receivable generation is investigated. Forecasting and optimisation of the level of accounts receivable based on innovative financial methods was performed to ensure effective business operations. Ways to improve the management of accounts receivable of the enterprise are provided. The positive impact of measures on the efficiency of the enterprise based on financial indicators – liquidity and turnover ratios – is proved. The problems of widespread use of the proposed methodology are indicated, and suggestions for solving these problems are given. The practical significance of the results obtained lies in the applied orientation of innovative financial methods described in the paper, the use of which will improve the process of optimising accounts receivable at the enterprise level, improve the process of managing accounts receivable, increase the level of liquidity and profitability of the business. The materials of the study would be useful for researchers who deal with the management and optimisation of accounts receivable, and can be comprehensively used in the business activities of “Energo Zbut Trans” LLC.
Investment and Innovation Development of Agriculture in Ukraine
Authors: Zakharchuk Oleksandr , Melnyk Serhii , Vyshnevetska Oksana , Popova Oksana , Kotsiubunska Liudmyla
Published: December 2022

The tasks facing agro-industrial production in Ukraine are to stimulate the processes of accumulation and effective use of investment resources according to the priorities of economic growth, and prospects for the development of innovation activities. The prerequisite for this is macroeconomic stability, which contributes to the accumulation of internal and external factors and resources by increasing investor confidence in economic regulatory policy and reducing the level of risk of investment activity. The issues covered in the study will primarily concern such important factors in ensuring the development of agroindustrial enterprises as innovation and investment. These concepts are widely reflected in the research of many economists, but the management of innovation projects and investment activities to ensure the economic security of agribusiness entities is not sufficiently developed. This determines the relevance of the article. The purpose of the study is to determine the nature and features of agricultural innovations, to examine the conditions and factors of innovative development of agriculture, to assess the challenges and prospects of using the latest advanced technologies in agriculture and their financial support. The following methods were used in the investigation: dialectical, systematic approach, monographic, economicstatistical, tabular, graphical, comparative analysis, abstract-logical and analytical forecasting. The features of the introduction of innovative technologies in the agrarian sector of the economy are analysed and it is revealed that agro-innovations are closely related to agrotechnical conditions of production, are linked to living organisms, are seasonal and, accordingly, have a high level of risk. The analysis of material costs for the production of cereals and the dynamics of their prices was carried out. Using the example of one of the farms of the Vinnytsia Oblast, it is calculated how precision farming technologies and energy-saving technologies can reduce the cost of grain production. The main trends in investment support for agriculture, the relationship between capital investment and GDP are identified, and their role in the implementation of agricultural innovations is clarified. The prospects of investment support of innovative activity of Ukrainian agriculture in the war period are determined. The measures to address the issues related to the introduction of innovations in agriculture are proposed. They will help to improve the production process, increase the efficiency of using internal ones and maximise the attraction of external investment in the implementation of innovative ideas.
Market Turnover of Agricultural Land in Ukraine: Monitoring and Analysis
Authors: Yurchenko Ihor
Published: December 2022

The main objective of the land reform in Ukraine, which was launched 22 years ago, is to involve agricultural land in full, efficient, and transparent economic (market) turnover. During different stages of transformations in land relations, in scientific, political, and social circles, the issue of market turnover of agricultural land was particularly acute and always caused many disputes about precisely what the market turnover of land should be. With the introduction (from July 2021) of the market turnover of agricultural land, questions about its functioning not only remained, but, on the contrary, additional tasks were added: which model of market turnover Ukraine has chosen; what are the results of the functioning of the market turnover of agricultural land; whether the model of market turnover of agricultural land corresponds to the European integration direction of Ukraine’s development, etc. This study is focused on highlighting such issues, clearly revealing the essence of the subject through the analysis of statistical data, which in turn forms the relevance of the results presented. The purpose of the study is to cover and analyse the outcomes of the market turnover of agricultural land in Ukraine and to identify the existing issues. The purpose of the study is a comprehensive examination of the results of purchase and sale transactions of ownership rights to agricultural land plots concluded in Ukraine during 07/01/2021 – 07/01/2022 to determine the main trends in the results. The methods of analysis of the given subject were general scientific, including structural and functional (description and explanation of pricing and functioning of the market turnover of agricultural land); comparison (identification of discrepancies in the data of land value and the basis of its calculation on the basis of collected statistical data on the results of the market turnover of land), abstract and logical (generalisation and formulation of conclusions). Based on the findings, the results of the functioning of the market turnover of agricultural land were analysed, the causes of overstatement of land value were identified and the main price trends were established. The value of agricultural land is calculated by applying the median, the results are compared with the calculations of the average value. It is argued that the state authorities’ data on the value of agricultural land is calculated incorrectly. The number and structure of concluded contracts for the sale and purchase of agricultural land in the context of regions are investigated. The value indicators of agricultural land depending on the location, purpose and type of land are highlighted. The main difficulties in the functioning of the market turnover of agricultural land have been identified. Prospects for further research are to find solutions to the existing problems of market turnover of agricultural land by applying the findings of the study.
Energy Independence and Financial Stability of Economic Entities in the Conditions of War
Authors: Melnychuk Nataliia , Dubas Rostyslav , Palokha Olha
Published: December 2022

Russia’s invasion of Ukraine has caused many social, economic, environmental and energy problems. Most business entities faced problems at the national level that affected their financial and economic activities. The mass departure of workers abroad, rising natural gas prices, internal relocation, and constant shelling force business entities to search for new approaches to the management and development of their enterprises. The purpose of the study – substantiate and test the scientific and methodological approach to achieving energy independence of economic entities as a way to avoid their insolvency in times of war. In the course of the study, a critical analysis of the thematic literature was performed, and a set of general scientific and special research methods was used: expert assessments, observation, analogy, grouping, obtaining a consensus, deductive, inductive reasoning, systematisation, system-functional, measurement, analysis, comparison, logical generalisation, systematisation, hypothesis, a repeated combination of independent scenarios, extrapolation, elasticity estimation and graphical. The study identified the consequences of the military invasion of Ukraine and developed an algorithm for actions during the war. Four scenarios have been identified, under which the investigated business entity can solve the urgent problems. It is substantiated that the best scenario is the one in which it is required to increase its production capacity by setting up a “full cycle” production using a continuous pyrolysis system for the recycling of worn-out tires. The rationality of its use is proved. The scientific and methodological tools for interaction between business entities and the state during the war have been improved based on a systematic approach, which, unlike the existing ones, deepens the significance of shifting the centre of gravity from the macro to the micro level and is based on the proposed algorithm of actions (identifying the problem, developing possible scenarios for its immediate solution, compliance of the chosen scenario with the national interests of the state, finding a source of funding for the implementation of one of the scenarios), which determines the most optimistic scenario of the balance of interests between the state and business entities. The practical value of the proposed lies in the identification of economic, social, environmental and energy efficiency of the developed algorithm of actions in practice, on the example of financial and economic activities of the entity. Such an approach, on the one hand, allows for achieving energy independence soon and is a way to avoid the insolvency of economic entities in the conditions of war. On the other hand, it should become a reliable base for the national economy in the period of post-war reconstruction.
Impact of Martial Law on Development Financial Mechanism of the Agricultural Sector of Ukraine
Authors: Radchenko Oksana , Strikhovskyi Dmytro , Leontovych Serhii
Published: December 2022

Martial law and hostilities on the territory of Ukraine have an unprecedented devastating impact on the national economy. There is a restructuring of management and financial regulation to preserve statehood and security. The purpose of the article is to summarize the state of the financial mechanism in the agrarian sector of Ukraine, primarily on the example of its budgetary instruments, in a war economy. A monographic method was used to review scientific publications and the regulatory framework, system analysis and synthesis to display the dynamics of indicators for the object of study. The methodological foundations of the functioning of the financial mechanism of the agricultural sector are summarized through its structural levels, strategy and tactics, methods, levers and tools. The definition of the categories of the financial mechanism, financial instruments of the financial and agricultural markets has been clarified, their connection with agricultural policy has been highlighted. The structure of the regulatory field, according to which the financial mechanism of agrarian policy is regulated under martial law, is determined. The state of the financial market of Ukraine, the structure and volume of its resources for the period of conducting the hybrid military aggression of the Russian Federation are analyzed. The state of the financial mechanism of the agricultural sector in 2013-2022 is highlighted. for financial instruments and components of budget support, lending, fiscal and price regulation, capital consumption, capital investment; connection of the volumes of financial resources of industry corporations with the results of activities in terms of profitability. The financial instruments of international assistance for the economy and the agricultural sector of Ukraine are summarized. The novelty of the study is the systematization of the features of the financial mechanism and its constituent instruments for the agricultural sector of Ukraine under martial law and the forecast of the volume of financial potential for 2022 by individual components. The directions of transformation of the financial mechanism for post-war reconstruction are outlined. It is shown that a significant criterion for the impact of agricultural policy on financial processes is the growth of qualitative characteristics of the mechanism for their implementation, primarily the expansion of the regulatory field for the formation of financial resources and attraction of investments, the simplification of agricultural business, the expansion of logistics and ways of marketing products, the formation of food balances, export-import operations. Separate results of the study in terms of determining the structure and volume of the financial potential of the directions for further transformation of the financial mechanism can be used in the formation of the financial component of the Strategy for the post-war recovery of the economy of Ukraine.
Instruments and Resources for Sustainable Development Acceleration of Agribusiness in Ukraine
Authors: Sholoiko Antonina , Matsybora Tetiana , Shevchenko Liudmyla
Published: December 2022

Agribusiness in Ukraine takes one of the most important places in the national economy, but not all subjects conduct it sustainably, because of the lack of resources to finance such transformations. Therefore, it is necessary to investigate the instruments of resource attracting for Sustainable Development Acceleration of Agribusiness in Ukraine. The aim of the article is to determine the current state of basic tools which are used to obtain resources for accelerating the sustainable development of agribusiness in Ukraine, namely agriculture insurance, green bonds and impact investment. The article uses a situational analysis, a monographic method, tabular and graphical methods, scientific generalization to analyze the experience of the use of agriculture insurance, green bonds and impact investment as tools to accelerate the sustainable development of agribusiness. The information sources for this research were the reports of the International Finance Corporation, the sustainability reports of the European Bank for Reconstruction and Development and the reports of the United Nations Development Program in Ukraine. The study of the practice of using agriculture insurance, green bonds and impact investment as tools to accelerate the sustainable development of agribusiness in Ukraine made it possible to determine the embryonic level of their use. This is indicated by the modeling of the development of the agriculture insurance in Ukraine, which showed that this type of insurance is formal and does not perform a real protective function. As for projects, the resources of which are attracted through green bonds and impact investment programs, they are fragmentary and need to be more systemic. This work is one of the first which looks into the practice of applying tools to accelerate the sustainable development of agribusiness in Ukraine, in the context of three dimensions and achieving sustainable development goals. For the further development of both agriculture insurance and green bonds, it is necessary to stimulate the emission of such debt securities by insurance companies and to develop not only insurance of primary agricultural products, but also processed ones, exporting of which brings more foreign exchange earnings to Ukraine. This study aims to highlight current practices in the application of tools to accelerate the sustainable development of agribusiness in Ukraine, including agriculture insurance, green bonds and impact investment, which represent the basis for their promotion and prevalence in the scientific community and among agribusiness professionals.
THE MECHANISM OF THE SHOCK WAVE OF PLASTIC DEFORMATION IN METALS
Authors: Sarafanov G.F.
Published: December 2022

A problem related to the evolution of the density of edge dislocations based on a system of equations for a dislocation ensemble is considered. Considering that during the evolution of the dislocation ensemble, the perturbations of the total dislocation density are small, an equation is obtained that obeys the evolution of the excess dislocation density (dislocation charge). It is shown that in the resulting equation, the nonlinear term due to the annihilation of dislocations is decisive in the evolution of the dislocation charge, provided that the dimensionless parameter R (similar to the Reynolds number in a viscous medium) is greater than one. Under these conditions, the original equation admits a self-similar solution in the form of a wave front of a dislocation charge I(x,t) running along a certain direction. This solution, however, is physically unstable, due to problematic boundary conditions. Therefore, a more feasible case was analyzed in which the initial evolutionary equation for the dislocation charge is reduced to the Burgers equation. For this equation, for sufficiently large values of R, an asymptotic solution I(x,t) = x/t was obtained in the form of a triangular shock wave, which has an amplitude I(x,t) and a front width dx ~ 1/R at the boundary of the wave x0 (for x > x0, I = 0 must be fulfilled). Estimates show that the propagation of the dislocation charge takes on the character of a shock front (R >> 1) if there are internal prerequisites for such an evolution of the dislocation charge, namely: effective conditions arise for the formation of a sufficient number of clusters of N0 in front of various barriers (it is shown that R ~ N0). Otherwise, the dynamics of the dislocation charge acquires the character of diffusion spreading.
Semantics of Anthropomorphic Images on Shamanic Drums of Shors as an Object of Intangible Cultural Heritage
Authors:   Kemerovo State University of Culture, Kimeeva Tatiana
Published: December 2022

The article substantiates the significance of the refering to the mythological ideas of the ethnos about the structure of the universe, about the anthropomorphic spirits inhabiting the world. The semantics of images on drums is characterized as one of the categories of intangible cultural heritage that has a material embodiment. The possibility of reconstructing the semantics of anthropomorphic images on the drums of Shor shamans is considered. Interpretation based on the researchers' fixation data is defined as the main method of reconstruction. The results can be used in the cultural and educational activities of the museum. The preferred forms of this activity may be interactive excursions and master classes.
Prospects of using interferon inducers of the double stranded RNA type for the treatment of viral and bacterial infections
Authors:   N.P. Ogarev Mordovia State University, Saransk, Russian Federation, Radaeva O.A. , Taganov A.V. ,   Russian University of Peoples’ Friendship, Moscow, Russian Federation,   CG Promomed, Moscow, Russian Federation, Rogozhina E.A. ,   CG Promomed, Moscow, Russian Federation,   Russian Technological University — Moscow Institute of Radio Engineering, Electronics and Automation (MIREA), Moscow, Russian Federation
Published: December 2022

The article highlights the role of the interferon system in the host defense against infections, primarily those caused by viral agents. The authors explain the effect of double stranded RNA (dsRNA)-based products used as interferon inducers (II) from a pathogenesis standpoint. The key advantage of interferon inducers is a broad spectrum of antiviral activity based on immunomodulating and secondary etiotropic effects. The addition of the so-called early-type II (the production of interferon occurs 2 — 6 hours after administration) to the treatment schemes promotes a timely and adequate immune response and helps to achieve a therapeutic effect. Despite a long-standing interest in the natural dsRNA, the imperfection of the described methods of its synthesis provided the impetus for finding and developing techniques aimed at creating an efficient and safe product. A novel technology of sodium ribonucleinate production enabled to receive an active bacterial endotoxin-free pharmaceutical substance and to minimize the concentration of related impurities which considerably increased the product safety. The innovative solutions underpinning the production of an advanced interferon inducer of the double stranded RNA type will significantly expand the potential applications of interferon therapy. KEYWORDS: antivirals, interferons, interferon inducers, Radamin Viro, sodium ribonucleinate. FOR CITATION: Radaeva O.A., Taganov A.V., Rogozhina E.A. Prospects of using interferon inducers of the double stranded RNA type for the treatment of viral and bacterial infections. Russian Medical Inquiry. 2022;6(11):643–649 (in Russ.). DOI: 10.32364/2587-6821- 2022-6-11-643-649.
Cough in children: the current approach to rational pharmacotherapy
Authors:   Central Research Institute of Epidemiology of the Russian Federal Service for Supervision of Consumer Rights Protection and Human Well-Being, Moscow, Russian Federation, Nikolaeva S.V. , Kanner E.V. ,   Central Research Institute of Epidemiology of the Russian Federal Service for Supervision of Consumer Rights Protection and Human Well-Being, Moscow, Russian Federation, Kanner I.D. ,   Lomonosov Moscow State University, Moscow, Russian Federation, Maksimov M.L. ,   Kazan State Medical Academy — Branch of the Russian Medical Academy of Continuous Professional Education, Kazan, Russian Federation,   Pirogov Russian National Research Medical University, Moscow, Russian Federation,   Russian Medical Academy of Continuous Professional Education, Moscow, Russian Federation, Pogorelova O.O. ,   Central Research Institute of Epidemiology of the Russian Federal Service for Supervision of Consumer Rights Protection and Human Well-Being, Moscow, Russian Federation, Shushakova E.K. ,   Central Research Institute of Epidemiology of the Russian Federal Service for Supervision of Consumer Rights Protection and Human Well-Being, Moscow, Russian Federation, Khlypovka Yu.N. ,   Central Research Institute of Epidemiology of the Russian Federal Service for Supervision of Consumer Rights Protection and Human Well-Being, Moscow, Russian Federation
Published: December 2022

Cough in children is one of the most common symptoms both in outpatient and hospital practices. It is the main reason why parents of these patients (especially of younger kids) seek for medical care. The article highlights the current view on the cough in pediatric practice. It elucidates cough classification, etiology, and therapy in children. The authors describe characteristics of the respiratory epithelium, a multicellular layer, that extends from the nasopharynx to the small airways and acts as a respiratory barrier coordinating immune response in the early childhood, undergoing the process of development, maturation, and regeneration to adapt to the changing environment. The article presents findings of the clinical studies assessing the medications of choice that were used for the treatment of coughs in children. The selection of right drugs should be based on individual patient’s needs and depend on the extent of cough impact on the patient condition. Also, it is necessary to consider whether the cough is intense, productive, for how long it lasts and to analyse bronchial mucus characteristics. KEYWORDS: cough, children, respiratory epithelium, immune response, immunity, antitussives, butamirate. FOR CITATION: Nikolaeva S.V., Kanner E.V., Kanner I.D. et al. Cough in children: the current approach to rational pharmacotherapy. Russian Medical Inquiry. 2022;6(11):650–655 (in Russ.). DOI: 10.32364/2587-6821-2022-6-11-650-655.
Clinical characteristics of the novel coronavirus infection in HIV-positive patient with underlying chronic hepatitis C
Authors:   City Infectious Diseases Hospital, Sevastopol, Russian Federation, Matyazh I.A. , Ivakhnenko E.V. ,   City Infectious Diseases Hospital, Sevastopol, Russian Federation, Grokhotova A.V. ,   Institute "S.I. Georgievsky Medical Academy", V.I. Vernadsky Crimean Federal University, Simferopol, Russian Federation
Published: December 2022

In view of the global pandemic caused by the novel coronavirus disease, HIV-infected people fall into a higher risk group, as they have a weakened immune system and underlying health conditions. Currently, much research focuses on the clinical characteristics of the coronavirus infection in various population groups with comorbidities, including HIV-positive patients. The article describes the clinical course of the novel coronavirus diseases in a male patient, 44 years of age, newly diagnosed with HIV at the time of hospitalization, who also had chronic hepatitis C with low specific enzyme levels. The chest CT scans demonstrated multiple polygonal sites of increased attenuation of the lung parenchyma (ground glass opacities) in segments S2, S3, S4, S5, S6–S10 of the right lung and in S3, S6–S10 segments of the left lung; these changes were more pronounced in the right lung. Most of the sites were detected in the subpleural region and close to the lung roots. The absence of highly active antiretroviral therapy resulted in a severe immunosuppression — during patient’s stay at the hospital the number of leucocytes decreased from 3.62×109/l to 2.54×109/l. However, in the entire period of illness, his condition remained stable (moderate severity), and no complications were reported. KEYWORDS: HIV-infection, chronic hepatitis C, COVID-19, novel coronavirus infection. FOR CITATION: Matyazh I.A., Ivakhnenko E.V., Grokhotova A.V. Clinical characteristics of the novel coronavirus infection in HIV- positive patient with underlying chronic hepatitis C. Russian Medical Inquiry. 2022;6(11):656–658 (in Russ.). DOI: 10.32364/2587- 6821-2022-6-11-656-658.
ANALISIS KINERJA MUTU PEKERJAAN STUKTUR BETON BERTULANG PADA PROYEK PEMBANGUNAN HOTEL, MALL, DAN APARTMENT TENTREM KOTA SEMARANG
Authors: Putra Ryan Dwiyana , Nuroji Nuroji , Suliantoro Hery
Published: December 2022

In Indonesia, infrastructure development is carried out on a large scale. With a
large infrastructure development, it must be balanced with good quality structural
work performance. On the basis of this, it is necessary to analyze the quality
performance of reinforced concrete structures in the construction projects of Hotels,
Mall and Apartment Tentrem. The research objective was to analyze the quality
performance from the aspects of strength, density, and dimensions of reinforced
concrete structures work; analyzing the factors that cause construction defects in
reinforced concrete structures work; and find the right strategy in dealing with
construction defects in reinforced concrete structures work. The research method
used is the method of field inspection, interview and literature method. From this
research, the quality performance that does not match the requirements is the
density aspect. Construction defects in the density aspect are caused by
the formwork that is hollow and there are gaps between the formwork joints, the
addition of water to the fresh concrete mixture, the way to use the vibrator machine
does not meet the requirements. The strategy for dealing with construction defects is
to tighten the supervision of contractors by controlling and evaluating
INVESTIGASI FAKTOR PENYEBAB COST OVERRUN OLEH KONTRAKTOR PADA PROYEK JALAN APBD KABUPATEN KARANGANYAR TAHUN 2017 DAN 2018
Authors: Sahid Muhammad Nur , Widiana Niza
Published: December 2022

The rapid development of road project development cannot be separated from the cost problem which often experiences cost overrun. This swelling can occur if a project management and control is not going well and does not meet the project target. The study was conducted to see the dominant factors that caused the cost overrun by the contractor for the implementation of the Karanganyar District Budget in Central Java Province which took place in 2017 and 2018, by distributing questionnaires to contractors. The results of the respondents collected were 36 respondents with 27 respondents. The questionnaire was processed by data processing using the SPSS (Statistical Package for Social Sciences) version 25 program. Reliability testing of 36 questionnaires showed that there were three unreliable questionnaires. In addition, the validity results of several variables in the questionnaire were obtained, namely one invalid variable. In addition to the validity and reliability tests, parametric statistical tests and multiple linear analysis were also carried out, then the results of the dominant factors that led to the implementation of Cost Overrun were schedule due to the influence of weather, disasters, poor cost control, not taking into account unexpected costs, and interest rates. bank loans, as well as the proportion of dominant cost overruns that occurs between 1% -5%
ANALISIS RISIKO PADA PROYEK JALAN LINGKAR UTARA BREBES - TEGAL
Authors: Salsabilla Nadya Shafira , Wibowo Kartono , Poedjiastoeti Hermin
Published: December 2022

Risk is a consequence of uncertain conditions. Risk will always exist in every construction project because basically a construction project is a unique, dynamic and risky activity. The purpose of this research is to analyze the risks in the construction project of the North Ring Road Brebes - Tegal and the purpose of this study is to identify risks, conduct risk level assessments and handle high risks that affect the project. This study uses two data, namely secondary data and primary data. Primary data, namely risk identification data, risk level data and risk response data. Secondary data, namely organizational structure data. The data that has been obtained are then analyzed using the Probability and Impact Matrix (PIM) method and followed by calculating the risk level value. Based on this value, the category and ranking of each risk is then determined. In the last stage, analysis of the handling of the highest risk is carried out. The results of the risk identification analysis of this study obtained 33 risks, then the results of the analysis using the Probability and Impact Matrix (PIM) method obtained 3 (three) high risks, namely incomplete design data, conflicts of interest with residents, inadequate project information (soil testing and reports survey). Ten risks fall into the moderate category and 20 other risks fall into the low category.
ANALISIS HALTE BUS TRANS SEMARANG (Studi Kasus Koridor I)
Authors: Agita Dika Septavian , Handajani Mudjiastuti , Ismiyati Ismiyati
Published: December 2022

The construction of shelters that were not carried out simultaneously resulted in the
construction of shelters along the Penggaron – Simpang Lima Semarang route
experiencing differences even though they were in the same location. There is a need
for a review from the government regarding the capacity of the bus stops, the
condition of the shelters, the layout of the shelters and the distance of the bus stops
that are still less than the standard. The lack of facilities owned by some Trans
Semarang bus stops and the distance from the bus stop users to the destination stop
is still quite far, so people prefer to use private vehicles. From several analysis
results, there are several criteria that must be met for the placement of the position
and the distance of the bus stop that will affect the speed of the Trans Semarang bus
in determining the optimal location for a bus stop, one of the important factors is
knowing the location of requests from BRT users where the location of the bus stop
request is a source of generation. and the attraction of population movement and the
location of the mode change before or after using the selected one.
PENGARUH PENGGUNAAN BAJA RINGAN PROFIL HOLLOW TERHADAP KUAT LENTUR BALOK BETON
Authors: Pekik Hari Prasetiyo Mas Kahono , Solikin Mochamad
Published: December 2022

When a load given to a concrete beam, the upper part of the beam will receiving compressive force, while the bottom holds tensile force. The maximum compressive force in the upper part of the beam gradually decreases to zero at the neutral line and then turns into tensile force that increases to maximum at the bottom fiber of the beam. The bottom part of the concrete below the neutral line does not receive any compressive forces, so it works as a conductor for tensile forces to the reinforcement. This study was intended to determine the effect of inserting hollow steel longitudinally to the tensile area of concrete beams in order to increase the load capacity and reduce the volume of concrete simultaneously. In this study, a one-point pressure test experiment was carried out using a Loading Frame with a sample of 28 days old concrete block with f'c = 21.04 MPa measuring 12cm x 18cm x 250cm. The reinforcement configuration is 4Ø10mm with fy = 450Mpa. The beams are casted in 3 variations consist of 2 samples each, which are normal beams, beams with 4x2 hollow steel profiles, and beams with 4x4 hollow steel profiles. The hollow profile steel was not removed during the test. From laboratory tests, it was found that although the reinforced hollow beam cracked early, the load capacity increased and 7.41% lighter than normal beam. Meanwhile, from the calculation simulation concluded, that to match the strength of hollow beams reinforced with hollow profile steel, solid beams need to be more ductile so that the dimensions need to be enlarged and become more expensive. This indicate that the voids in the tensile area of the beam are economically benefit while the stiffness of the concrete beam remain the same and even increasing flexural strength when a hollow profile steel inserted.
PENGHAMBAT DAN PENDORONG GREEN SUPPLY CHAIN MANAGEMENT (Studi Kasus : Aluminium Formwork)
Authors: Galaxy Agustinaputri Bintang , Wibowo M. Agung , Suharyanto Suharyanto
Published: December 2022

Technological innovation in the construction sector is needed not only aimed at faster construction but also environmentally friendly. Engineering the formwork system using aluminum is one of the technological innovations to accelerate development and adopt the 3R (Reuse, Reduce, and Recycle) concept. To support the use of aluminum formwork, an environmentally friendly supply chain activity management model is needed. The Green Supply Chain Management (GSCM) approach is one method that can reduce waste. This study analyzes the driving and inhibiting factors of GSCM using aluminum formwork in an apartment project in Semarang. The method of compiling this research used a qualitative method, where interviews were conducted which were then made into complete transcripts and grouped each opinion with a SWOT matrix approach. Based on the results of the SWOT analysis, 4 factors have a significant effect. Among these 4 factors, there are 2 driving factors, namely government regulations regarding environmental protection and commitment to protecting the environment, and 2 inhibiting factors, namely the availability of suppliers who implement GSCM practices in construction areas and require careful planning. The use of aluminum formwork can save costs up to 5.44% with a construction time of 6 days faster than conventional methods.
EVALUASI DEBIT REMBESAN DARI DATA BACAAN V-NOTCH PADA BENDUNGAN BENEL
Authors: Ardiansyah Rahman Hakim , Sriyana Ignatius
Published: December 2022

The Benel Dam, one of the dams in Bali, is an already operational dam, so it necessary to monitor the behavior of the dam body to be able to find out as early as possible if an anomaly occurs, one of which is monitoring seepage discharge at the v-notch. The purpose of this study is to determine the fluctuation of seepage discharge and its correlation to the reservoir level, and to determine the safety of the seepage discharge that occurs. The evaluation of seepage discharge is carried out on reading data that is not influenced by rainfall, then compares it with the limits of the seepage acceptance criteria and seepage index. From the analysis results show the correlation between seepage discharge and reservoir level r = 0.2296 and after parsing the data, it is obtained for 2013, 2014, 2018 and 2019 data that the correlation level is moderate - very strong. The results of the parsing then selected data that is not affected by rainfall. The seepage discharge that occurs is still smaller than 0.14 liters/minute/meter, while the seepage index (QI) is greater than 1. In the seepage index analysis, it is necessary to use the seepage path length parameter that is appropriate or close to the actual condition.
ANALISIS CONTRACT CHANGE ORDER PADA PELAKSANAAN PROYEK APARTEMEN ALTON SEMARANG
Authors: Khalim Muhammad Abdul , Adi Henny Pratiwi , Rochim Abdul
Published: December 2022

A contract change order (CCO) is a job change activity in a construction project that is carried out during the work implementation period. This study aims to determine the factors that cause contract change orders, analyze the impact given if there is a contract change order and analyze what strategies must be done to resolve the occurrence of contract change orders in the implementation of the Alton Apartment building construction project located in the city of Semarang. The data collected in this study used a semi-structured interview method with competent sources in their field, while the sources for data collection were construction management consultants (MK), contractors & owners. The Strength, Weakness, Opportunity, Threats (SWOT) analysis method is used to determine the right strategy to deal with CCO activities. The conclusion of the study, CCO was caused by an imperfect design that resulted in the achievement of time and costs not being on target, the strategy was obtained by accelerating work, controlling each work and project cashflow and referring back to the wholesale contract that was mutually agreed upon in the event of a dispute.
KAJIAN RANCANG BANGUN ALAT UKUR DEBIT AMBANG LEBAR DENGAN VARIASI KEMIRINGAN HILIR
Authors: Risman Risman , Warsiti Warsiti , Wasino Wasino , Mawardi Mawardi , Mulyono Tedjo
Published: December 2022

The modeling of broad crested weirs is expected to facilitate understanding, especially the behavior of the flow flowing through the measuring instrument. The flow behavior under consideration is hydraulic behavior, measurement accuracy, and discharge curve. In addition, there is a relationship between discharge and water level upstream and downstream of the spillway, as well as the relationship of the variation of discharge flowing through the broad crested weirs to the loss of energy height. From the results of this study, it was found that there was a relationship between discharge and water level upstream, downstream, water level above the threshold, and energy loss for wide-threshold spillway. The modeling of the broad crested weirs assumes that the Froude number that occurs in the model is the same as the Froude number that occurs in the field. So that the scale of discharge, time, velocity and volume will be able to represent the actual conditions in the field. The scale of length, width, and height of the prototype is 1: 100. The methodology used is to carry out testing in the hydraulics laboratory by varying Q1, Q2, Q3, Q4, …. Qn, to obtain variations in water level upstream and downstream of the broad crested weirs. From the results of the study, it was found that the energy loss was relatively small with a trend of Y = 101.66x2 - 0.7359x + 0.0017 with the slope of the broad crested weirs downstream is 1:2, Y = 467.84x2 - 1.7816x + 0.0022 for slope of the broad crested weirs downstream is 1:1.5, and Y = -1140,4x2 + 0.6383x + 0.0077 with the slope of the broad crested weirs downstream is 1:1 where Y is the energy loss in meters and X is the discharge in m3/sec.
PENGARUH FAKTOR LINGKUNGAN INTERNAL DAN AGRESIF TERHADAP KOLOM RETROFIT DENGAN CFRP DAN GFRP
Authors: Devi Rida Handiana , Sangadji Senot
Published: December 2022

The strengthening technique to retrofit a reinforced concrete structure is an
effective strategy to enhance the local and global structure capacity. It could be the
structure's strength, stiffness, and failure resistance. The retrofit strategy is selected
in the wrapped column method using FRP (Fiber Reinforced Polymer). This study
analyzed one column element using the static nonlinear procedure to determine the
member of the structure toward seismic forces. The rectangular column was
analyzed using Adaptive Pushover Analysis. This procedure operates the not
constant lateral load, then attaining more realistic results by displacement-based
inelastic element type. Three models were analyzed using Seismostruct with the
non-retrofit column without FRP and two models with retrofitted FRP by carbon or
CRFP and glass or GFRP. Those two materials have advantages under different
conditions, so that this enhancement can install under different risks and
circumstances. The column capacity increase wrapping CFRP reached more than
10 % compared with the non-retrofit column. Wrapping GFRP represents that
column capacity failure resistance is more significant than CFRP in internal and
aggressive environment types.