bluuebunny/crossref_metadata_2025 huggingface dataset:
GREENHOUSE GAS EMISSIONS IN AL AMIN LIVING LAB AND INDUSTRIAL PARK PLANNING
Authors: Rahmadhani Fitri  , Hendra Fahruddin Siregar  , Benny Iskandar
Published: May 2023

The impact of carbon emissions as a major cause of climate change has raised concerns and become a challenge for the international community. To reduce emissions, it is necessary to study the carbon footprint of activities in Al-Amin. The planning of Al Amin Living lab and Industrial Park along with the administration in which various activities produce carbon emissions these activities need to be calculated to find out how much the activity contributes to the emissions produced so that negative impacts on the environment can be minimized. Opportunities for PSE-GR Development Areas with the concept of Eco-Tech-Edu Tourism which has an understanding of Circular Economy Education (CED) is still very minimal in North Sumatra, PSE-GR can be a pioneer in spreading this understanding of CED where the integration of economic and educational activities occurs which at the same time helps maintain the preservation of nature. Encouraged by the development of the Independent Learning Curriculum (ILC), it is hoped that PSE-GR can become a place for research, service, and practicum of the UNPAB academic community that increases awareness of the need for nature conservation. Because Green Technology from across fields of science is still very minimally discussed and is still often partially researched, UNPAB can be an example of the integration of fields of science that become practical, dynamic, educational, and economic value innovations. The existence of 20 ha of land owned by the Prof. DR H Kadirun Yahya Foundation, it is hoped that UNPAB can develop a Living lab ecosystem at least on 10 ha of land. PSE-GR is not expected to be as exclusive as tourist areas in general, with the concept of CED, PSE-GR will not only help become an income generator & source of educational land for the academic community but also help the welfare of the village and the surrounding community. Carbon footprint studies are carried out in 3 scopes according to The Greenhouse Gas Protocol (GHG Protocol), namely emissions from sources owned or directly controlled by the faculty, indirect emissions from electricity consumption, and other indirect emissions (WRI and WBSCD, 2004). Carbon footprint emissions from all three scopes are calculated based on methods from the International Panel on Climate Change (IPCC) for the national greenhouse gas (GHG) inventory.
RESPONSE OF ECO ENZYME AND RHIZOBIUM ISOLATION ON GROWTH AND PRODUCTION RED ONION (Allium ascolonicum L)
Authors: Yudi Siswanto  , Isnar Sumartono  , Mujaddin Ilman
Published: May 2023

Response of Eco Enzyme Administration and Rhizobium Isolation on the Growth and Production of Shallots (Allium ascolonicum L). This study aims to determine the effectiveness of eco enzyme administration and rhizobium isolation as well as the interaction of eco enzyme and rhizobium isolation on the growth and production of shallots (Allium ascolonicum L). This study used a factorial randomized block design (RBD) consisting of 2 factors, 16 treatments, and 3 blocks. The results showed that the effectiveness of eco enzyme administration and rhizobium isolation had an effect on the parameters of plant height (cm), number of leaves (strands), number of tubers per sample (tubers), wet tuber production per sample (g), wet tuber production per plot ( g), dry tuber production per sample (g), dry tuber production per plot (g). The interaction between the effectiveness of eco enzyme administration and rhizobium isolation had no effect on plant height (cm), number of leaves (strands), number of tubers per sample (tubers), wet tuber production per sample (g), wet tuber production per plot (g), dry tuber production per sample (g), dry tuber production per plot (g).
Improving Students’ Ability in Writing Scientific Papers Through Process Approach
Authors: Fitri Ayu  , Devi Anggriani  , Nizamuddin
Published: May 2023

One of the writing skills that must be mastered by intellectuals is writing scientific papers. The Indonesian curriculum covers all language skills, including writing. The curriculum is described in the Competency Standards and Basic Competencies (SK and KD) from elementary to high school levels. This study aims to determine the ability of students in class XII MIA 4 SMA Panca Budi in writing scientific papers that will be useful for continuing their education to the university level. This research was conducted as a solution offer that would guide these students to write using an approach, namely "Process Approach". The results showed a significant increase in the ability to write scientific papers. This is proven by the movement of students' average writing scores from 63.10 during the pre-test, to 73.13 during the test in cycle 1 and increased again to 88.82 in the test in cycle 2. In other words, the process approach has been proven to be able to improve the ability to write scientific papers of students, especially students of grade XII MIA 4 SMA Panca Budi.
Impacts of operating conditions on specific cake resistance in dead-end microfiltration process
Authors: Khaliunaa Natsagdorj , Zhan Wang , Wang Xi , Bold Tungalagtamir
Published: May 2023

In the present work, the fouling behavior and the corresponding specific cake resistance of polyethersulfone microfiltration membrane fouled by using different solutions (bovine serum albumin solution, sodium alginate solution, humic acid and activated sludge suspension) under different operating conditions, transmembrane pressure (TMP), concentration (C), stirred speed (ω) and temperature (T) were systematically investigated. The ensuing results showed that the proposed equation can be used to accurately calculate instantaneous specific cake resistance (α). The average specific cake resistance increased with increasing operating pressure, concentration, and stirred speed, while it decreased with increasing operating temperature. The average specific cake resistance of sodium alginate (SA) was larger and the sequence was SA>HA>BSA>AS.
Corrections for regular identification of high energy positive particles in experimental data using lobachevsky space
Authors: Ravdandorj Togoo , Narankhuu Khishigbuyan , Janchiv Shinebayar
Published: May 2023

In this work, high-energy positive charged particles are distinguished using the Lobachevsky space or Hyperbolic space, which is defined as the total rapidity multiplied by hyperbolic cosines of the transverse and longitudinal rapidity of the particles. Experimental data from eight different types of interactions detected in the bubble chambers accumulated in the high-energy sector were used in the calculations. The weights used to construct the proton and positive pion distributions for each of the interacting secondary particles have been eliminated, allowing such studies to be performed such as particle counting and clustering.These weights do not include calculated weights at azimuth angles, near the center of the star, or without momentum measurements. We now have the opportunity to study positive pions and protons. The percentage of confused particles increases with the beam energy.

After the reconstruction, we conducted a study of the temperature of the charged particles produced by the p + p interaction of 205 GeV, where Tsallis temperatures are close to Hagedorn . On the other hand, Hagedor  and  temperatures are higher than Tsallis, which means that the unstable states exchange heat as they move to equilibrium.
The Impact Of The Interior Design Of Dental Clinic On The Amount Of Patient Stress
Authors: Taghipour Malihe , Darabi Zahra
Published: May 2023

The overall objective of this study was to investigate the relationship between physical factors in the interior design of dental offices is on the anxiety of patients. The population consisted of all patients referred to four private dental offices in Shiraz, among whom 130 patients were randomly selected as samples. The data collection tools included two questionnaires with the aim of evaluating the physical quality of the interior design and also the Norman Curras Dental Questionnaire. After calculating the validity and reliability, the questionnaires were distributed among the samples and were collected afterwards. The data was analyzed using the SPSS20 software. We used descriptive correlation statistics and inferential statistics methods, ANOVA and repeated measurements as well as Multivariate Analysis of Variance to analyze the data. The results showed that: 1. there is a significant relationship between the mean layout, noise, cleanliness and adornment of the offices and the anxiety in patients. 2. the most important physical factors for the internal design of dental offices are cleanliness and adornment. 3. From the viewpoints of male and female patients, there is no significant difference between various aspects of the interior design in dental offices. 4. From the viewpoints of the patients with different educational levels, there is a significant difference between various aspects of the interior design in dental offices.
Impact of Covid 19 on Buying Behaviour and Purchase Decision-Making: An Empirical Analysis
Authors: Verma Sakshi , Sengupta Prof Soma
Published: May 2023

COVID 19 has changed the world. The way we do business, the way we study, the way we socialise, the way we travel, everything has changed. Several countries across the globe experienced lockdowns. The lockdown has forced people to stay indoors and be in survival mode. With no flights, salons, restaurants, hotels, transport, and even offices, the people were trapped in their homes. The home has been converted into a workplace, school as well as a playground. Several businesses have suffered losses and even faced shutdowns and on the other hand, COVID-19 has acted as a window of opportunity for many new products and services. Consumers are hence forced to change their purchase patterns. The grocery bill for most households has doubled during the lockdown. Dining out and travel has decreased. Generation Z is devoting the budget to education as they want to upgrade their skills and prepare themselves for the challenges that the post-COVID world will pose. OTT platforms have seen a surge in viewership as people are exploring all sorts of media to relax and rejuvenate in their homes. Groceries, automobiles, electronic gadgets, kitchen appliances, apparel, insurance, and financial investments are the major components of household spending. In this paper, we have explored the major components of household buying and how COVID-19 has impacted them. The study is based on inputs from a primary survey and existing reports and information. The primary survey helps us to understand the changes in household buying patterns, purchase decision-making, and gender roles. We have collected primary data using an online survey as face-to-face interaction was difficult due to the COVID-19 pandemic. The changes in household buying may become permanent changes or might fade away. Understanding this difference is crucial for marketers to formulate long-term strategies for their products and services. This study will provide insights and help marketers to understand the changing buying behaviour and purchase-decision making in households.
SURROGACY (REGULATION) ACT, 2021: EFFECTIVENESS AND CONCERNS
Authors: Verma Rajiv
Published: May 2023

In a country like India where not having a child is a social taboo, surrogacy brought hopes and happiness for many childless couples. Amid these hopes, there are also ethical concerns whether it was morally correct to use one’s body to reproduce and make a living out of it. Furthermore, as India legalized surrogacy way back in 2002 and made it an important component of medical tourism, the surrogacy market grew multifold. This growth in surrogacy market also posed many challenges. Exploitation of surrogates and abandonment of children started surfacing in a big way. The government of India acknowledged these problems and enacted the Surrogacy (Regulation) Act, 2021. Through this Act, the government majorly focused on two aspects. First, it put an end to commercial surrogacy to do away with exploitation of surrogates. Secondly, in order to fulfil the need of childless couples, it allowed altruistic surrogacy where there will be no payments for surrogate except for her medical and insurance expenses. Furthermore, it also restricts the foreigners from availing this facility. How will this new act unfold is a matter of academic enquiry. Preliminary impressions through popular writings are pointing at many loopholes in the act. To begin with, it is suggestive of black marketing. As a result, while the hospitals and middlemen continue to mint money, the surrogates are at the loser’s end. Additionally, altruistic surrogacy is exerting a lot of pressure on weaker women of families’ giving rise to women exploitation. Furthermore, it also deprived many women of their jobs as surrogates. Through this paper, an attempt is made to understand the act of 2021 and the way it solves or give rise to new challenges in safeguarding the rights of surrogates and children and the future of surrogacy in India.
Critical Appraisal Of Preventive Detention Provisions Under the National Security Act, 1980
Authors: Krishna Goswami Prof. Avinash , Gautam Dr. Ritu , Kumar Vaibhav
Published: May 2023

The primary focus of this paper is on the shortcomings of the existing preventive detention legislation, especially the National Security Act, 1980. India had various laws on preventive detention prior to the existing National Security Act,1980 but they were gradually repealed, and then the current Act was brought, it was initially enacted as an Ordinance by the President in 1980 but now it has become a prominent law on preventive detention. Preventive detention violates the very basic fundamental right of an individual which is the right to personal liberty enshrined under Article 21 of the Constitution and the mandate provided under Article 22 related to the rights of an arrested person is also violated in the case of preventive detention. India is among the few nations where preventive detention law is constitutional whereas in countries like USA and England no such law exists(exception during wartime). Alarming rise in the number of preventive detentions due to the ease provided under the preventive detention laws, there is a need in the Indian legal system to make the authorities accountable for arbitrary detentions and to establish safeguards to ensure fair procedure before restricting people’s freedom.
Evaluation of Endoscopic Mucosal Band Ligation for Treatment of Portal Hypertensive Gastropathy in Cirrhotic Patients
Authors: Sallam Abd El-Fattah Hasan , Rafat Mohamed Nabil , EL-Shreef Saad EL-Deen
Published: May 2023

Background: Portal hypertensive gastropathy (PHG) is a clinical condition that can lead to chronic gastrointestinal (GIT) hemorrhage in cirrhotic patients, presented by chronic anemia. The diagnosis is based on the endoscopic features. The aim of the study was to evaluate the safety and efficacy of the use of endoscopic mucosal band ligation for treatment of portal hypertensive gastropathy in cirrhotic patients.

Patients and methods: This prospective study included 80 cirrhotic anemic patients. They divided into four equal groups: Group (A) included patients who were treated with drugs as beta-blockers. Group (B) included patients treated with argon plasma coagulation (APC). Group (C) included patients treated with endoscopic mucosal band ligation and Group (D) included patients treated with combined endoscopic mucosal band ligation and APC in subsequent sessions.

Results: There was statistical significant decrease in TIBC throughout follow up in the four studied groups. And there was statistical significant increase in Hb, and serum ferritin throughout follow up in the four studied groups.

Conclusion: after 2nd follow-up in managing PHG, we have found that there is significant increase in Hb, serum ferritin and significant decrease in recurrent GI bleeding among all groups.
EFEKTIVITAS MODEL THINK PAIR SHARE TERHADAP KEMAMPUAN MENULIS PUISI
Authors: Saifullah Saifullah , Umaira Dinar Rahmatul , Khalik Suhartini , Rasyid Rustam Efendy , Ecca Suleha
Published: May 2023

Penelitian ini bertujuan untuk mengetahui efektivitas model Thimk Pair Share (TPS) terhadap kemampuan menulis puisi siswa kelas X IPS MA Al Urwatul Wutsqaa Baranti tahun pelajaran 2022. Populasi penelitian ini adalah semua siswa kelas X IPS yakni 43 orang siswa. Penarikan sampel kelas X IPS 2 sebanyak 15 orang, dengan menggunakan penelitian kuantitatif metode pre-experimental desain tipe one group pre test post test. Metode pengumpulan data yang digunakan adalah wawancara, angket, observasi, dan tes. Data yang diperoleh kemudian diolah dengan analisis deskriptif dan analisis efektivitas. Hasil penelitian menunjukkan bahwa siswa yang diajar menulis puisi dengan menerapkan model TPS memperoleh nilai rata-rata 87 sedangkan pada model pembelajaran konvensional siswa memperoleh nilai rata-rata 75 dan analisis efektivitas sudah memenuhi keempat indikator ketercapaian yaitu kualitas pembelajaran, kesesuaian tingkat pembelajaran, motivasi dalam pembelajaran dan waktu. Berdasarkan hasil analisis data disimpulkan bahwa kemampuan belajar siswa dalam menulis puisi setelah menggunakan model Think Pair Share (TPS) efektif daripada kemampuan belajar siswa sebelum menerapakan model Think Pair Share (TPS) di kelas X. Hal tersebut menandakan bahwa penerapan model Think Pair Share (TPS) efektif terhadap kemampuan menulis puisi siswa kelas X IPS MA Al Urwatul Wutsqaa Benteng.
A systematic review of the costs of diagnosis for multidrug-resistant/extensively drug-resistant TB in different settings
Authors: Saderi L. , Cabibbe A. M. , Puci M. , Di Lorenzo B. , Centis R. , Pontali E. , van den Boom M. , Chakaya J. M. , D´Ambrosio L. , Denholm J. T. , Ferrara G. , Silva D. R. , Solovic I. , Spanevello A. , Visca D. , Sotgiu G. , Migliori G. B.
Published: May 2023

BACKGROUND: We performed an analysis of the cost and relative merits of different strategies for the diagnosis of multidrug-resistant/extensively drug-resistant TB (MDR/XDR-TB) in different settings.METHODS: We systematically reviewed the published evidence on cost/cost-effectiveness
of rapid MDR/pre-XDR-TB and other methods for XDR-TB testing up to September 2022. PRISMA guidelines were followed. Collected data were analysed using Stata v17 software. Cost data were reported in USD ($) and summarised by mean, standard deviation, and range. Country income level was
defined according to the World Bank country classification. Three simplified scenarios were also used to explore testing implications, based on low, intermediate and high TB incidence.RESULTS: Of 157 records, 25 studies were included with 24 reporting the cost of Xpert/RIF and two
that evaluated the implementation of the MTBDRplus test. The total rapid test cost ranged from $12.41–$218, including $1.13–$74.60 for reagents/consumables and $0.40–$14.34 for equipment.CONCLUSION: The cost of MDR/XDR-TB
diagnostics is lower in low resource settings. However, the cost-effective implementation of MDR/XDR-TB diagnostic algorithms requires careful consideration of local resources to avoid missed identification and the use of inappropriate regimen.
IMPACT OF MODERATE SIZE EARTHQUAKES THROUGH SKOPJE 2016 AND ZAGREB 2020 CASE STUDIES
Authors: Salic Makreska Radmila , Drogreska Katerina , Sinadinovski Cvetan , Neziri Zabedin , Jovanov Ljubco , Milutinovic Zoran , Pekevski Lazo , Najdovska Jasmina , Atanasovska Dragana Chernih , Tomic Daniel
Published: May 2023

Even today, moderate earthquakes can cause considerable damage and social disturbance, especially in areas populated with old and masonry buildings. Two recent moderate earthquakes that hit the Balkan peninsula in 2016 and 2020 affected the capital cities of Skopje and Zagreb, respectively. Both have shown the high vulnerability pattern of a current masonry building stock and emphasised the necessity for improvement of existing response, preparedness, and protection measures. The manuscript analyses, summarizes, and presents the crucial seismo-tectonic aspects and seismological data of both affected cities, then defines P-nodal planes for both strongest earthquake events affecting Skopje 2016 (ML=5.3) and Zagreb 2020 (ML=5.5). We analysed and compared macroseismic data, and strong motion records in respect to their amplitude and frequency characteristics and showed the building damage and usability statistics. The observed differences and similarities that have resulted from this comparative study are to be used further to increase the awareness of the impact of moderate earthquakes, identify gaps and inconsistencies in the coping capacity domain and propose systematic measures to decrease vulnerability of the existing masonry building portfolio.
AMBIENT VIBRATION MEASUREMENT OF THE INSTITUTE FOR MATERIALS AND STRUCTURES BUILDING IN SARAJEVO
Authors: Selimović Enver , Hadžić Hanka , Simonović Goran , Churilov Sergey , Hrasnica Mustafa , Medić Senad
Published: May 2023

Determination of dynamic properties of structures is the first step in assessing seismic response, and they can be measured in several ways. Controlling or knowing the input excitation usually applied by impact hammer or vibration shaker, typical for experimental modal analysis (EMA) that has been around for the past few decades, is for majority of structures difficult or practically impossible. Ambient vibration testing (AVT) or operational modal analysis (OMA), on the other hand, is the output-only modal analysis. It does not require knowledge of the input excitation, which is practically induced by wind, traffic or similar random source. In this paper, an investigation of ambient vibrations and numerical modelling of the building of the Institute for Materials and Structures (IMK) of the Faculty of Civil Engineering in Sarajevo was carried out. The main goal was to determine the dynamic characteristics of the IMK building using the DIGITEX SENTRY system and Artemis modal software. In addition to testing the IMK building, testing of simpler systems such as a wooden simple beam and a steel cantilever was also conducted. For each experiment, a modal analysis was performed in the Tower 8 software package. The numerical model of the building was more flexible than measured in the experiments, and the results were only comparable after inclusion of partition walls in the analysis.
NUMERICAL MODELING OF THE IN-PLANE BEHAVIOR OF EXPERIMENTALLY TESTED SOLID BRICK MASONRY WALLS
Authors: Medić Senad , Hrasnica Mustafa
Published: May 2023

Unreinforced unconfined solid brick masonry walls were experimentally tested in full scale (233x241x25cm) and reduced scale (100x100x25cm) at the laboratory of the Institute for materials and structures, Faculty of Civil Engineering in Sarajevo. Cantilever walls were loaded in cyclic shear or pushed monotonically. In order to study the nonlinear behavior in a detailed and global manner, finite element meso- and macro-models of the tested walls were created using the finite element software Diana FEA. Brick units are discretized by continuum elements in a meso-model and discontinuity in displacement field is introduced by interface elements between units. In order to account for brick cracking, an additional interface element was added in the unit middle. Continuum macro-models approximate heterogeneous masonry wall by a single material and discretization is independent of brick layout, i.e., bricks, mortar and unit-mortar interface are smeared out in the continuum. The recently developed engineering masonry model is an orthotropic total-strain continuum model with smeared cracking and it was used with shell elements. Numerical results are verified against the data obtained from the experimental research program. The walls exhibit rocking failure mode in low precompression, while diagonal cracking occurs for higher vertical stresses. The results show good matching with the experimentally obtained curves regarding the ultimate load and ductility.
SEISMIC PERFORMANCE OF RUBBERIZED CONCRETE IN STRUCTURAL APPLICATIONS
Authors: Kalman Šipoš Tanja , Jeleč Kristina , Miličević Ivana
Published: May 2023

Rubberized concrete is a promising material for the structural elements, created by replacing sand with rubber particles in order to significantly reduce environmental impacts from large tyre waste with improved behaviour under earthquake loads. Experimental studies on nine columns and three frames were carried out in order to determine the capacity of different structural elements in regard to conventional concrete. The specimens were subjected to a cyclic loading following loading protocol used for the seismic performance assessment of structural and non-structural components, as it allows all damage states to be quantified to develop the corresponding fragility models. The results indicated that rubberized concrete columns and frames made of rubberized concrete can delay and reduce the amount of damage occurring under seismic loading. This is attributed to the higher deformability of rubberized concrete compared to conventional. With these contributions, an increased use of rubberized concrete in global construction can promise a reduction of the significant environmental impacts caused both from waste tyres and the exploitation of natural resources with promotion of environmentally friendly alternative to conventional concrete in structural applications in earthquake prone areas.
RISK-BASED SEISMIC PERFORMANCE ASSESSMENT OF A TYPICAL MASONRY BUILDING IN THE URBAN AREA OF ZAGREB
Authors: Pilipović Ante , Uroš Mario , Šavor Novak Marta , Prevolnik Snježan
Published: May 2023

The Zagreb 2020 earthquake has damaged many historical buildings within the old city centre despite it’s medium intensity. Damaged buildings were mostly typical unreinforced masonry buildings (URM) in aggregates built in the first half of the 20th century when seismic codes were not sufficiently developed and they are considered high-risk in case of an earthquake. A risk-based assessment of such a typical masonry building in the urban area of Zagreb is presented and it’s seismic performance evaluated. The nonlinear model of a four-storey building using ETABS is described and incremental dynamic analysis (IDA) is performed using 13 ground motion records selected according to local seismotectonic conditions. 13 IDA curves are generated up to collapse with a total of 96 performance points. Damage states are assigned by direct visual inspection of the 3D model after each IDA run using EMS-98 damage classification instead of EDP parameter thresholds. Fragility curves are derived for slight, moderate, extensive and complete damage states using IM-based approach. The vulnerability curve is derived using mean damage ratio (MDR) values according to the latest national seismic risk assessment for URM buildings in Zagreb. Results show that this type of buildings reaches slight damage state for return period TR=95 years, exceeds moderate damage for TR=225 years and reaches extensive damage and even collapse for TR=475 years. This building type is therefore very vulnerable to code-based hazard and should be retrofitted in order to increase it’s seismic performance.
ENVIRONMENTAL EFFECT ON THE DYNAMIC CHARACTERISTICS OF RC BRIDGES
Authors: Vitanova Marija , Gjorgjiev Igor , Naumovski Nikola , Hristovski Viktor
Published: May 2023

Bridges represent key structural elements of transportation systems. They are exposed to different natural and environmental effects that may cause damage representing a potential threat mainly in disturbing the process of transportation of people and goods. The short- and long-term road closures might have a tremendous impact on regional economic and social development. Therefore, the definition of their dynamic characteristics as are natural frequencies by experimental measurements is very important for fast and early assessment of the current conditions. For that purpose, the method of experimental modal analysis is used. This method involves measurement of structural response under ambient conditions. Presented in this paper is investigation of environmental effects upon dynamic characteristics of RC frame bridges. The investigation was carried out on two overpasses with approximately the same geometry. Both structures have two spans each and are in straight direction, but are placed under a skew angle of 58° and 67.8°. The overpasses were constructed in 2016, but have still not been put into operation. They are situated along “Friendship” high-way in N. Macedonia and the distance between them is 3km. Three measurements were performed for each overpass, namely the first measurements were done in October 2017 when dynamic tests were performed, the second were done in March 2020 and the third were done in May 2022. Modal identification of the overpasses was effectively carried out using the enhanced frequency domain decomposition method in frequency domain and stochastic subspace identification method in time domain. The identified dynamic characteristics were compared with each other and with the environmental effects. The results from the analysis show that the identified natural frequencies effectively indicate change of dynamic characteristics of the overpasses due to environmental effects. Greater difference in identified natural frequencies is observed in longitudinal direction, while the least difference occurs in vertical direction.
EXPERIENCES IN MODELING AND ANALYSIS OF MINE SEAL STRUCTURES
Authors: Hristovski Viktor , Jankulovski Emil , Burke John
Published: May 2023

Mine seals are structures used to serve as protection shields against short term instantaneous pressure loadings like blasts, which could occur in underground mine workings during serviceability period in combination with possible hydrostatic pressure from ground water. They can also resist accidental loads, like earthquakes, that may occur during the excavation period. In this paper, experiences in modelling and nonlinear finite element analysis of mine seal structures that have preceded the design phase are presented. Namely, for the period of 10 years, more than 20 study cases of mine seals have been modelled and analysed by the authors. Each separate study case consisted of a number of different model types, depending on various assumptions about prescribed boundary conditions, material used, seal structure adopted, prescribed loading, existence of bolts, existence of openings, etc. For all cases, there have been performed force-displacement progressive failure analyses (PFM), with detailed description of the failure mechanism and critical points on the obtained diagrams. The design force-displacement diagrams have been constructed by using an overstrength factor and a material partial safety coefficient. The design limit states criteria have been defined for each study case taken separately. All study cases are presented comparatively in a tabular form according to the material and geometrical properties, failure mechanisms and design limit state criteria. The numerical analyses have been performed by using the software package FELISA/3M. Willam-Warnke and Drucker-Prager elastic-plastic criteria have been used to account for the material nonlinearity. Models have been built using SOLID iso-parametric finite elements with 20 nodes for modelling of the seal body and LINK elements for modelling of the contact surfaces between the body and the surrounding rocks. This study is believed to have given a valuable insight into modelling and methods for analysis of mine seals structures, useful for practitioners in this field.
SEISMIC RETROFIT OF STRATEGIC MASONRY STRUCTURES WITH BASE ISOLATION TECHNIQUE: THE CASE STUDY OF “GIACOMO MATTEOTTI” SCHOOL BUILDING IN GUBBIO, ITALY
Authors: Barone Stefano , Vetturini Riccardo
Published: May 2023

Seismic retrofit of existing structures is an extremely important topic in the field of earthquake engineering. For strategic structures such as school and military buildings, bridges and infrastructures in general, the expected performance level is further raised compared to conventional structures to guarantee two fundamental targets: to resist the ultimate design seismic action corresponding to the life safety limit state and to guarantee immediate occupancy after an earthquake event. This means no damage to the structural elements as well as protection of internal equipment from excessive accelerations. Structure functionality is therefore the minimum acceptable level of retrofit for strategic structures. In case of masonry buildings located in medium-high seismicity zones, conventional retrofit (i.e. wall-to-roof and wall-to-floor anchorage, out-of-plane wall bracing, diaphragm strengthening) does not allow to fully achieve the above objectives. Furthermore, the application of these techniques causes an important and invasive impact on the structure, distorting the building on both architectural and functional level. Base isolation is a technical solution that allows to drastically reduce the seismic demand on the structure using special anti-seismic devices characterized by high horizontal flexibility. This paper describes the application of seismic isolation technique to protect the “Giacomo Matteotti” school building, located in the city of Gubbio, Italy. The building was built in the 1940s, and it is made of cast stone and bricks and reinforced concrete-hollow tiles mixed floors. The building has three floors, a total area of 6.000 m2, an inter-storey height of 4 m and a total volume of about 23.750 m3. The City of Gubbio (Umbria region, Italy), is located in an area where strong earthquakes can occur, with expected peak ground acceleration on rock soil equal to 0.29g for 475 years return period (i.e., 10% exceedance probability in 50 years). For the base isolation system, Freyssinet has supplied 94 anti-seismic rubber isolators ISOSISM® type HDRB-H 550x155 and 93 flat sliders with confined elastomeric disc TETRON® type CD GL 3000.600.600 in order to reduce the eccentricity between centre of mass and centre of stiffness of the isolation system and consequently the torsional effects on the superstructure. This paper describes the performance characteristics of the isolators with particular attention to the experimental dynamic response. A special focus is given to all the construction phases and details necessary to isolate a masonry structure.
BEHAVIOUR OF MASONRY INFILLS WITH DOOR OPENINGS UNDER SEQUENTIAL IN-PLANE AND OUT-OF-PLANE LOADING
Authors: Milijaš Aleksa , Šakić Bogdan , Marinković Marko , Butenweg Christoph , Gams Matija , Klinkel Sven
Published: May 2023

Reinforced concrete (RC) frame structures with masonry infills are common in seismic-prone regions. Masonry infills are activated in in-plane and out-of-plane directions under seismic loading and often damaged during earthquakes. Several recent investigations have shown that the combined effects of in-plane and out-of-plane loads are particularly dangerous for masonry infills. However, most of these studies focused on solid infills, and there is little information about the influence of openings on the seismic performance of infills, even though openings may alter the seismic performance of infilled frames significantly. This paper presents results of two experimental tests carried out on masonry infills with full-height door openings. One was tested under pure out-of-plane load, and the second one with sequential in-plane and out-of-plane loads. Thereafter, results of these two tests are compared with experimental findings obtained from two experimental tests with similar loading protocol conducted on solid masonry infills. Results of the study demonstrate the deteriorating effect of door openings, especially under combined in-plane and out-of-plane loads. The results also highlight a need for practical solutions for damage prevention in both infills with and without openings.
SEISMIC SOIL-STRUCTURE INTERACTION EFFECTS ON A HIGH RISE RC BUILDING
Authors: Edip Kemal , Bojadjiev Jordan , Nikolovski Done , Bojadjieva Julijana
Published: May 2023

Soil-structure interaction (SSI) is for sure one of the most neglected effects in seismic structural design practice. However, many researchers showed that it might notably affect seismic performance results. In fact, the state-of-the-art seismic codes are encouraging including SSI for structures with considerable p-Δ effects and mid to high-rise buildings. In the current research, seismic soil-structure interaction analysis is made for a selected mid-rise reinforced concrete building with several different SSI techniques (models). In order to quantify the effect of SSI on the overall response of the selected structure, the global seismic response within a frame of force-displacement relationship for different earthquake intensities, different SSI mathematical models and different soil categories is presented. Comparing the outcome of the performed analysis it was observed that the structural performance was affected significantly by the foundation system and contributes considerably to the overall structural performance of the selected structure in specific soil conditions. As the results indicate, more code-based recommendations are required for the improvement of the SSI structural seismic design, especially in soft soil cases, where the soil-structure interaction might significantly affect the seismic response of buildings.
STATISTICAL SEISMIC PERFORMANCE ASSESSMENT OF VISCOUS DAMPER IN BENCHMARK BUILDINGS UNDER FAR-FAULT AND NEAR-FAULT EARTHQUAKES
Authors: Farzam M. Fahimi , Kalajahi T. Dehghan
Published: May 2023

The viscous damper produces a force proportional to the velocity by moving the fluid inside their cylinder and, causes energy dissipation due to the dynamic vibrations by converting mechanical energy into heat. Viscose dampers with their three special features as powerful passive control devices have been widely studied in recent decades. The ability to improve the seismic performance of the structures with significant energy loss, production of out-of-phase damping force relative to displacement, and the increase of the structural damping without making major changes in the stiffness characteristics of the structure are its distinguishing features in comparison with other passive control methods. In this study, the seismic performance of viscous dampers is investigated to control the vibration of three benchmark steel buildings (i.e. 3-, 9-, and 20-story buildings designed for the SAC project) under two sets of recorded near-fault (NF) ground motions possessing forward-directivity (FD) or fling-step (FS) features and compared with the building responses under a suite of far-fault (FF) accelerograms. The results indicate the superior performance of viscous dampers in low-rise buildings and under FF earthquakes, i.e. 59% and 53% reduction in the mean of the maximum roof displacement and velocity, respectively. However, to control the mean of the maximum roof acceleration, the best performance was obtained in the high-rise buildings and under FF earthquakes, showing a maximum of 84% reduction. In general, it can be concluded that the damper has the highest reduction in acceleration response under the FF records, and under the NF records with FD has the least decrease in the velocity response.
SATISFAÇÃO DE USUÁRIAS DE DISPOSITIVO INTRAUTERINO DE COBRE: ANÁLISE DE PACIENTES DO AMBULATÓRIO DE PLANEJAMENTO FAMILIAR DE UM HOSPITAL PÚBLICO
Authors: Braga Évelyn Mayara Rocha , Paiva Daniele Socorro de Brito Souza
Published: May 2023

Introdução: No Brasil, a garantia à contracepção se dá por meio da Política Nacional de Planejamento Familiar de 2007, que oferta diversos métodos contraceptivos gratuitos, dentre eles destaca-se o dispositivo intrauterino (DIU) de cobre, um método contraceptivo altamente eficaz. Objetivos: Conhecer a satisfação das usuárias com o DIU e especificamente avaliar e identificar a interferência dos efeitos colaterais na qualidade de vida das pacientes. Métodos: Estudo prospectivo, de campo, transversal, com abordagem quantitativa, por intermédio de questionário estruturado aplicado em usuárias de DIU de cobre, inserido no serviço e com no mínimo 03 meses de uso. Resultados: As usuárias estavam satisfeitas com o DIU de cobre (92,6%) e não referiram incômodo com o método (59,5%), apesar de 63,0%, 77,8% e 44,5% apresentarem dor abdominal (fora do período menstrual), cólica menstrual e aumento do fluxo menstrual, respectivamente. Conclusão: A maioria das usuárias estavam satisfeitas com o DIU de cobre, dando continuidade ao seu uso, apesar da existência de alguns efeitos colaterais. O estudo demonstrou que o DIU é uma excelente alternativa de contracepção por ser eficaz, ter uma ação prolongada, custo reduzido e com boa satisfação entre as usuárias.
O USO DO BIG DATA ANALYTICS NO MARKETING JURÍDICO DIGITAL
Authors: Furlaneto Neto Mário , Pavelski Bruna Guesso Scarmagnan , Montanari Lucas da Silva
Published: May 2023

Este artigo aborda sobreo uso do Big Data como meio de propagação de informações referentes ao marketing jurídico, tornando-se um meio com que os advogados e os escritórios de advocacia se comuniquem com a sociedade, fortalecendo sua participação no mundo digital. Todavia, questiona-se: como deve ser a atuação do marketing jurídico? como os dados podem ser definidos e direcionados sobre o mercado e sobre os consumidores deste conteúdo? junta-se a isto: o uso do Big Data é permitido?  Assim, por meio do método hipotético dedutivo, a partir de revisão doutrinária, legislativa e bibliográfica, buscou-se trazer à baila conceito de big data, marketing, principalmente jurídico, explorando a publicidade, bem como os parâmetros legais para tanto, examinado o provimento n.205/2021 da Ordem dos Advogados do Brasil. Com efeito, os resultados do presente estudo mostram o avanço nas práticas da advocacia e como o profissional está se adaptando às novas realidades, bem como as novas demandas do mercado exigem e impulsam a modificação, alteração e ampliação das leis.
O ARETÉ HEROICO E SUAS APROXIMAÇÕES COM A ÉTICA ARENDTIANA
Authors: Assunção Juliana Cristhina Murari , Da Silva Paulo Fraga
Published: May 2023

Este trabalho reflete sobre as aproximações das concepções éticas de Hannah Arendt com o conceito ético grego antigo, pautado no modelo heroico exposto nas epopeias homéricas: Ilíada e Odisseia e na obra aristotélica: Ética a Nicômaco. Para isso, primeiramente se faz necessário percorrer a formulação do termo “ética”. Em seguida, compreender alguns dos valores heróicos: areté e kleos. Após isso, intui-se avaliar como esses valores passam a ser apresentados pelo filósofo Aristóteles, em sua obra: Ética a Nicômaco. Por fim, busca-se traçar aproximações entre os dois modelos anteriores apresentados e as concepções éticas de Hannah Arendt apresentadas na obra: Condição Humana.
O LOOK DO DIA: DO STYLING DE MODA A ESTILIZAÇÃO DE SI
Authors: Aires Aliana Barbosa , Souza Josenilde Silva
Published: May 2023

Neste artigo investigamos o fenômeno da estetização do cotidiano a partir da moda, de acordo com o diagnóstico de Lipovestsky (2015) sobre a incorporação de um capitalismo artista e a estetização do mundo. Para isso, propomos analisar a produção do look do dia por pessoas comuns e/ou blogueiras de moda como um processo de estilização de si, sendo ordenado segundo princípios de styling semelhantes àqueles adotados em produções de moda profissionais. Para isso, selecionamos aleatoriamente como corpus desta pesquisa algumas fotografias de looks do dia postados no instagram e em blogs pessoais, a partir de acervo de imagens das autoras, e os analisamos guiando-nos pelos seguintes critérios: coordenação das peças do vestuário, estilo, poses, enquadramentos e efeitos inseridos na fotografia.
Spectral Matching of Three-Component Seismic Ground Accelerations for Critical Structures
Authors: Mangkoesoebroto Sindur P. , Yasa Adi , Zulkifli Ediansjah
Published: May 2023

Abstract
This study introduces a new procedure for three-component spectral matching of seismic ground acceleration records. The procedure involves preserving the phase angle and varying the Fourier amplitudes to match the spectra of the recorded records with a provided target spectrum that represents the spectral values of ground motions in three orthogonal directions. Several three-component recorded records were matched against two target response spectra to test the method. An accurate convergence was achieved in the velocity and displacement records. In addition, the scales among the components’ magnitude were maintained, creating realistic three-component ground motions. Such ground motion inputs are important to qualify critical structures sensitive to three-component motions. Our proposed procedure is novel because the present practices are mostly created based on one-component ground motions.
Keywords: Spectral matching, three components, component scales, phase angle, critical structures.
Abstrak
Studi ini mengusulkan prosedur baru terkait penyesuaian spektra catatan percepatan gempa. Prosedur ini dilakukan dengan mempertahankan sudut phasa tetapi mengubah amplitudo Fourier catatan percepatan gempa demikian hingga spektrumnya sesuai dengan target. Target spektrum yang diinputkan mewakili tiga komponen gempa. Untuk mengujinya, beberapa catatan gempa tiga-komponen disesuaikan spektrumnya terhadap dua target spektra. Ketelitian yang cukup baik terlihat dari catatan kecepatan dan simpangan. Skala ketiga komponen juga dijaga sehingga dihasilkan percepatan gempa tiga-komponen yang realistis. Percepatan gempa sejenis ini diperlukan dalam proses kualifikasi struktur penting yang sensitif terhadap pengaruh gerakan tiga arah. Prosedur tersebut adalah baru karena teknik yang ada sekarang didasarkan pada penyesuain spektrum per-komponen.
Kata-kata Kunci: Penyesuaian spektra, tiga komponen, skala komponen, sudut phasa, struktur penting.
Aquaponia: Uma ferramenta inovadora para o ensino de ciências
Authors: Sousa Alexandre Benvindo de , Hoyos Daniela Chemim de Melo
Published: May 2023

A aquaponia une técnicas e processos da aquicultura e da hidroponia constituindo um sistema sinérgico de produção de alimentos. Nas duas últimas décadas vem ganhando relevância como opção de produção de alimentos, especialmente por seu uso ser passível para pequenos espaços, mesmo que em áreas cobertas. Devido a essa caraterística, o emprego em instituições escolares ganha cada vez mais adeptos, desde a pré-escola até o ensino superior. Neste capítulo abordarmos as amplas potencialidades da aquaponia como ferramenta de ensino para educação ambiental, STEAM, bem como, letramento científico e tecnológico. Uma lista com sugestões de temas, disciplinas a atividades e competências baseadas na BNCC também é apresentada.
Territorio relacional & educación ambiental: La escuela como un espacio activador de conciencia sobre la ecoeficiencia entre cuerpos que se encarnan y desencarnan
Authors: Arias Ronald Fernando Quintana
Published: May 2023

Con el objetivo de posicionar a la escuela como un espacio activador de conciencia sobre la ecoeficiencia de un territorio relacional donde confluyen cuerpos que se encarnan y desencarnan, Se realiza una metodología de estudio de caso con un enfoque participativo de tipo descriptivo con docentes de diferentes colegios de la SED-(Bogotá-Colombia) en el 2019. Los resultados evidencian la importancia de la educación ambiental como un eje articulador de un territorio relacional en el que la correlación Proyecto-Ambiental-Escolar con la Estructura-ecológica-principal, encarna una experiencia cotidiana que conjuga diferentes perspectivas de cuerpos en un mundo que tiene como principio fenomenológico lo que aparece y descansa en la percepción (el yo), y en el ser percibido (los otros). Se concluye que la escuela es un escenario donde se desarrollan competencias ciudadanas y pensamiento científico, en el que se generan alternativas de ecoeficiencia con una base zoé-política que fortalece la educación ambiental.