bluuebunny/crossref_metadata_2025 huggingface dataset:
A comparison of the resource-efficiency of different reinforcement concepts motivated by tunnel segments
Authors: Decker Marion , Proksch-Weilguni Clemens , Kollegger Johann
Published: February 2024

In view of ongoing climate change and the limited availability of resources and energy, efforts in optimizing newly built structures are crucial to improve the resource-efficiency of the construction sector. Tunnels with a segmental lining offer great potential for such efforts. Therefore, the Institute of Structural Engineering at TU Wien developed a reinforcement concept to increase the ultimate load of a tunnel segment by adding butt-jointed reinforcement bars in the longitudinal joint.

To evaluate the beneficial effect of the new concept, cylindrical specimens with varying reinforcement concepts and materials, respectively, were tested at TU Wien. By putting the results on the ultimate load in context with the global warming potential (GWP), the performance of concepts with butt-jointed reinforcement bars and confining reinforcement compared to plain concrete or concrete with steel-fibers is quantified.
Environmental assessment of road construction projects in India: A novel approach
Authors: Shukla Abhiram , Tikam Harshal
Published: February 2024

The road sector is one of the basic pillars for national economic growth owing to its role in movement of goods and people across a vast country such as India and can contribute positively towards several sustainable development goals (SDGs}. However, conventional road construction methods may hinder country's progress in achieving climate action and environmental SDGs due to substantial raw material requirements, fuel consumption, and associated pollution. The proposed approach connects the bill of quantity (BOQ} of the road with accessible analysis of rates document and India-specific construction materials environmental footprint database. A case study on a 49 km Indo-Nepal border road found that conventional natural coarse and fine aggregates, Portland cement, steel bars, bitumen, and diesel are responsible for the majority of impacts. The study identified environmental impact on six domains per km of the road section. The proposed approach can serve as a template for future LCA studies on road construction, and the information generated can be utilized by decision makers.
Innovation in the design and construction of Temburong Bridge, Brunei
Authors: Yip Sammy , Hussain Naeem , Vishnoi Paresh
Published: February 2024

The 27km long Sultan Haji Omar Ali Saifuddien Bridge in Brunei (known as Temburong Bridge) is the longest bridge in Southeast Asia. The Temburong district was isolated from the rest of Brunei by the Malaysian state of Sarawak since 1890. The new bridge connects the district with the more developed Brunei-Muara district, improving connectivity and accessibility to goods and services, facilitating economic development and provides a 24-hour physical link, eliminating the need to go through two Malaysian borders, reducing journey time from 2 hours to 30 minutes.

The bridge was procured as a traditional engineer-design arrangement under various construction contracts. The bridge includes a 14km long marine viaduct across Brunei Bay, two concrete deck cable stayed bridges and a 12km long swamp forest viaduct. This bridge was opened early in 2020 to allow residents to travel to/from Temburong without crossing the Malaysian borders which were shut due to COVID. This paper focus on the innovation of the design and construction of the bridge and discuss the values they bring.
Mechanisms for new lifting railway bridge on Pamban Island, India
Authors: Sánchez Jiménez José Luis , Cabria Calleja Angel Luis , González Guerrero Andrés , de Guevara Méndez Ginés Ladrón , Curbelo Díaz Alberto
Published: February 2024

New Railway Pamban vertical lift bridge will replace the more than 100 years old strongly deteriorated Scherzer Rolling Bascule Bridge, connecting Pamban Island with the mainland of Tamil Nadu State, in India, promoted by RVNL, Rail Vikas Nigam Limited. The 77.5m lifting span weighs around 650 tons and can be raised 17m in approximately 3.5 minutes.

Mechanisms will be located at the top of the two towers, with a 250kW motor per side. Gear box set will reduce the motor 750rpm to 0.5rpm rotation speed of the 3m diameter sheaves, with the operation controlled by variable speed drives. Electrical supply is ensured by an 800 kVA compact substation and two 625kVA diesel generators as backup system. Lighting protection and an adequate earthing system is provided.
Case Study of Rochdale Canal Bridge Assessment using Non-Linear Finite Element analysis
Authors: Voleti Sai Anoop Aditya , Parayil Sreejith , Satapathy Abani Kumar
Published: February 2024

Rochdale Canal Bridge is a single skew span railway under bridge to be assessed under Civils Assessment Framework Agreement 2020-2024. The scope of work is limited to the decks supporting the railway lines.

The methodology used to develop a finite element model that accurately represents the structure, the complexities of the structure due to load effects from neighbouring decks etc., are also discussed in the paper. Furthermore, material non-linearity was considered along with geometric non- linearity. The most onerous buckling mode derived from linear Eigen value buckling analysis is used for the initial geometry imperfection of structure. Non-linear analysis was carried out at both SLS and ULS to identify the failure modes through excess stress, strain, yielding and buckling. Through this study, the reserve strength of the structure was captured and is found to be adequate for the current loading which is an improvement from previous assessment. The assessment of these kind of bridges and suggesting strengthening measures etc, will help reduce the environmental impact as compared to the new constructions thereby contributing to sustainability.
Seismic Analysis of Integral Abutment Bridge – Comparison of Framed Abutment with Fixed Base and Hinged Base
Authors: Balla Biswa Kumar , Shrestha Sudip , Maharjan Shreenij
Published: February 2024

Integral Abutment Bridge {IAB) is the bridge in which the superstructure and substructure is monolithically casted. The advantages of IAB bridge are: less maintenance, better seismic performance due to increased redundancy. In this study, the IAB bridge with 1.0 m diameter pile in 2x10 pile configuration is compared with

1.5 m diameter piles in 1x8 pile configuration. The limit equilibrium method as per IRC:SP:115 is used instead of soil structure interaction for backfill. Soil pile interaction is represented by the linear soil spring. The site - specific response spectra is used for Elastic Response Spectrum Analysis. Temperature loading, Creep, shrinkage, differential settlement; Live load and live load surcharge are applied in the model as per IRC:6- 2017. The beam element is used to model the superstructure and pile. Plate element is used for pile cap and abutment wall. The time period of hinged base model is significantly larger than fixed base model. The pile top displacement and abutment top displacement is higher in hinged base model than the fixed base model.
Study on Mechanical Properties of a Negative Poisson's Ratio Structural Bridge Block
Authors: Zhang Xuhui , Wu Xun , Jiang Shanguo
Published: February 2024

This paper is based on the design concept of the block is not damaged under small earthquakes and can be used sustainably and in the medium earthquake does not fall, convenient structure replacement and it can be destroyed during a large earthquake, sacrificing itself to protect the main beam. Based on the characteristics of graded energy dissipation and the advantages of negative Poisson's ratio compared with traditional structures in energy absorption and impact resistance, an anti-seismic energy dissipation bridge block was designed. The mechanical properties of the block were studied by uniaxial loading test and finite element simulation. Through the comparative analysis of normalized curves, it is found that the block structure has a good limiting ability compared with other types of blocks, which can be multi-enhanced stiffness characteristics and excellent bearing capacity.
Thermal Performance of Sandwich Wall Panels With Core Insulating Material
Authors: lakshmi N. Sooriya , Helena H Jane , Sherila B.
Published: February 2024

Air conditioning systems account for bulk total energy consumption in buildings. The major phenomenon behind thermal insulation is the conservation of energy. In this paper, experimental analysis on the thermal performance of concrete sandwich wall panels (SWP) was studied by varying the core insulation material and was compared with conventional concrete wall panels (CCWP). Insulation materials used for analysis include expanded polystyrene (EPS), air cavity, paper boards, and wood sawdust.

In the laboratory, the thermal conductivity of core insulation materials was quantified using Lee’s disc apparatus. The thermal conductivity values of SWP specimens are entirely dependent on the thermal conductivity of core insulation materials. Field thermal performance is measured with the help of an infrared thermometer.

It is found that the outer surface of SWP experienced high temperatures compared to the outer surface of CCWP. In the inner surface, the temperature increase is gradual in SWP and about 4⁰C less compared to CCWP at maximum temperature.
Material efficient WAAM Steel Construction Details
Authors: Erven Maren , Lange Jörg
Published: February 2024

With the new manufacturing process Wire Arc Additive Manufacturing {WAAM), it is possible to produce new shapes that previously could only be manufactured with a great effort. The energy- intensive manufacturing process can be positively compensated by the sensible use in mainly material-saving components. In this article, the enormous potential is illustrated by the example of a conventional head plate. Here, 80 % of the material can be saved and waste is eliminated completely. The article furthermore presents the printing, the load-bearing tests and the numerical simulation of the novel structure. A homogeneous component behavior is shown, which can be predicted very well by finite elements.
3D Printed Sandwich Structural Decks of Dual Corrugate Sheet with Mid Shear Layer (DCMSL) as Core Profile
Authors: Kamal K.
Published: February 2024

Rectangular sandwich decks in an exclusive profile that has an additional shear layer in the mid of its dual corrugate monolithic core , developed on 3D printing, has been highlighted here in this paper. These sandwich decks in construction mix material when 3D printed out having such a monolithic core profile, factually offers getting rid off invariably otherwise required any bonding to attach the two or more components of any sandwich panels. Having observed a consistency in various numerical results as obtained through analyses carried out using ‘Advanced Composite Technology(ACT) with that observed from various conducted load tests on these 3D printed hardware , sandwich deck units, are then favourably recommend for their effective deployment in any civil engineering application. A fruitful observation has been made here on a suitable orientation tht need only be maintained in this orthogonal dual corrugate sheets monolithic core profile sandwich for their excellence in performance for service as compare to that of any so far used single corrugate sheet core sandwich profile.
Research on Concrete Box Girder Bridge Widening Based on Spatial Grid Model
Authors: Sun Chenglin
Published: February 2024

In this paper, based on a practical project, the spatial grid model is used to analyze the stress of the widened bridge. By comparing the stress changes, it is concluded that the shrinkage and creep of the new bridge will affect the stress of the whole structure after two bridges are connected. At the same time, the foundation settlement of the new bridge will generate additional stress at the connecting deck of the two bridges. Therefore, when the bridge is widened, certain measures should be taken to reduce the shrinkage and creep of the new bridge and the settlement of the foundation, so as to reduce the influence on the structure and ensure the safety of the widened bridge.
Underground Metro: A Solution for Sustainability
Authors: Gupta Vinay
Published: February 2024

Time is not far when this world will have to find place on other planets to surmount the difficulty of shortage of land on the Earth. Metro has been going underground at many places. Taking a cue from Paris and London, the city appears so neat, when the metro is all put underground, especially in the main city. India is moving very much in the same direction. And underground metro provides effective means of sustainability in many ways. The masses can be transported in urban areas without cluttering the ground level roads. Being underground, the pollution levels are reduced to minimum. Tunnel and many times platforms and OT ducts are made in precast concrete, thereby reducing the quantum of site produced concrete and reduce environmental pollution. Construction of various structures of UG Metro is carried out in a specialized manner. The following paras explain broadly adopted construction methods of each of these.
Double-Decker - Nagpur Metro Flyover with Spine & Wing Superstructure
Authors: More Sachin , Manoj T. P.
Published: February 2024

The rapid urbanisation demands the development of National highways {NH) & Metro corridors. However, the space available for the transportation structures is only the existing road width, which becomes a deadlock for executing agencies. The Nagpur Metro rail development & NH flyover work along the demanding Wardha road happened to follow suit. The 3.4Km stretch of NH & Metro alignment coincided between Ajni and Airport Road. The challenge became an opportunity to construct a double-decker, however, with various riders such as aesthetics, a stringent schedule, and overall economy. The stretch also included three stations and one obligatory span, which resulted in a Link Bridge for passenger movement and extended pier caps. The multilevel structural arrangement resulted in the optimisation of land use, materials, and other precious resources. The successful implementation of a double-decker became a trend-setter for various upcoming projects.
Study of A Monumental Stair Susceptible to Excessive Vibrations Due to Human Movements
Authors: Setareh Mehdi
Published: February 2024

Excessive vibrations of monumental stairs can become a major serviceability issue. It is, therefore, important for structural engineers to be able to predict the behavior of these systems as accurately as possible. Inaccuracies in the response prediction can result in a structure with excessive vibrations or great unnecessary costs in terms of material consumption, particularly steel, which is against one of the main goals of sustainability in construction. To evaluate the accuracy of response prediction using a Finite Element computer analysis, this paper presents a study of a monumental stair susceptible to excessive vibrations due to human movements. The stair responses due to the ascent and descent at its first sub-harmonic of fundamental frequency were computed and compared with those from the measurement. Conclusions were made in regards to the computer modeling of the structure and its effectiveness in walk response prediction.
An Overview of the BIM implementation on Chilean Bridges
Authors: Valenzuela Matías A. , Márquez Marcelo , Roca Leonardo , Seguel José Luis
Published: February 2024

In Chile the Building Information Modelling is developing since 2015. During that year, the president of Chile announced encourage of use BIM in public infrastructure with two main objectives:

1. Request of the implementation of BIM in Public contracts by term of reference, in order to standardize the request process from the Public Services.

2. The review of the project using IFC format in the municipalities for private buildings, in order to obtain the construction permission.

On that framework it was create the initiative Plan BIM, which integrate the collaboration of Academia, Public and Private Entities in order to improve the knowledge and use of BIM.

This paper provides a comprehensive overview of the developing of BIM apply on Chilean bridges, highlighting the contribution of several stakeholders. Cases of study of the implementation of BIM is presented.
A machine learning-based methodology of integrating loading data and load effect data for long span bridge assessment
Authors: Ye Simon Cong , Yeung Ngai , Vishnoi Paresh , Kite Steve
Published: February 2024

A number of long span bridges around the world have extensive structural health monitoring (SHM} systems installed. These bridges are complex structures under complex operational and environmental conditions, making it challenging to process and interpret the monitoring data obtained. This paper presents a machine learning (ML}-based methodology of linking bridge loading data with measured load effect data for long span bridge assessment, developed using the monitoring data obtained from the 1377 m main span Tsing Ma Bridge in Hong Kong. The proposed methodology includes supervised, unsupervised and semi-supervised learning techniques to enable and automate the identification, classification and segmentation of different live load effects. The developed methodology can assist with more realistic load rating and fatigue assessment and facilitate the operation and maintenance (O&M} of long span bridges.
Sustainable facade constructions
Authors: Siebert Barbara , Siebert Geralt
Published: February 2024

The building envelope has a significant contribution to the CO2 footprint of a building. This applies to both new buildings and existing buildings. The life cycle of a building can be extended through intelligent facade renovation or renewal, which of course has a positive effect on the overall balance. The decisive factor is a holistic approach from planning, construction, operation and maintenance including refurbishment and deconstruction. Current developments in facade construction will be shown. It is not just a matter of finding the best heat transfer coefficient for a window, for example, but of finding intelligent, object-related solutions.
Mobility Architecture as a Driver of Social Sustainability Outcomes
Authors: Jensen Poul Ove , Henriksen Jesper , Holmboe Tine , Merlo Catherine
Published: February 2024

From small footpaths to large ocean spans, bridges connect people, reduce travel time, and generate economic opportunity. Successful mobility solutions strengthen social cohesion and provide a strong sense of place to local communities. Today’s infrastructure must deliver an ever- increasing list of ESG outcomes. Within complex infrastructure value chains, architects can collaborate with engineering partners to prioritize social sustainability and centre the human user within the design process.

Dissing+Weitling presents three bridges across a spectrum of functions to demonstrate how design can be a key driver of social impact and sustainability outcomes. Together, the Great Belt Bridge, Køge Nord Station, and Copenhagen Bicycle Snake present a case for bridge design as social value drivers through landmark placemaking, improvement of urban life, and universal design.
The smart FRP panel for bridge redecking – development and experimental validation of "panel – panel" and "panel – girder" connections
Authors: Piątek Bartosz , Kulpa Maciej , Siwowski Tomasz
Published: February 2024

The paper presents the smart FRP deck system, called Optideck, which was developed as a sandwich panel in which the core is ribbed by a vertical laminates forming a honeycomb structure. The panel is equipped with distributed fibre optic sensors for structural health monitoring. The sensors are built into the panel during the infusion process and fully integrated with the structure. Taking into account the design and transport constraints, the final parts of the deck slab have to be connected longitudinally or transversely on site, which is quite a challenge due to the irregular form of the ribbed core. The panel has to be also efficiently attached to the main girders of the bridge. The paper presents the stages of creating the concept of panel-panel and panel-concrete and steel girder connections, their design, production of prototypes and finally their static and fatigue tests in the laboratory. The conclusions drawn from the individual stages led to the selection of the best solution and its use in the future in the final deck panels.
Sustainable development of sports stadiums
Authors: Schmedes Sven
Published: February 2024

Sports stadiums have a considerable impact on the urban, environmental and social context. Therefore, the requirements for operation of each stadium after the mega-event are of great importance to ensure sustainability and maximised daily utilization on a long-term basis. Case studies of three different stadium types used for the Olympic Summer Games 2000, 2004 and 2008 are analysed based on literature research, field surveys and interviews with operators. The comparative assessment is conducted in the categories: urban, environmental and social based on a five-point score system. It concludes that long-term utilization of sports stadiums built or modified for the Olympic Games (refer to fig. 1) correlates with the level of urban integration, urban context, building type and usage mix.
The need for research and innovation to facilitate upscaling of low-carbon concrete
Authors: Rempling Rasmus , Karlsson Mats , Fernandez Ignasi , Gil Carlos , Löfgren Ingemar , Mathern Alexandre , Magnusson Jonas , Saleh Iad , Suchorzewski Jan
Published: February 2024

For decades, research has been carried out with a focus on concrete structures during curing to mitigate the risk of thermal cracking. Computer programs and aids/tools have also been developed to assess stress and cracking risk analysis of concrete structures during curing. However, today with the recent introduction of low-carbon concretes to reduce the environmental impact of constructions, the reliability of the tools and working procedures, i.e. concrete characterization, is questioned, and a roadmap for research and innovation is called for. The project's primary purpose is to investigate the need for research and innovation regarding upscaling the usage of low-carbon concrete. The nature of the study is based on an industry-focused workshop with specialists from Scandinavia. Increased knowledge of hardening concrete's cracking risk-related properties is of the utmost importance for the construction industry as the need for its understanding has recently increased.
Seismic Isolation Design for Achieving Post-Earthquake Functionality
Authors: Mokha Anoop S.
Published: February 2024

Functionality is an important consideration while designing critical buildings, bridges, and industrial structures in earthquake prone regions of the world. This is necessary for minimizing post- earthquake disruption to society. Major earthquakes that have occurred every year in the world are a constant reminder that critical structures must remain functional and operational post- earthquake, so that community needs are met. Hospitals need to remain functional and operational in order to treat injured people and save lives. Bridges classified as lifeline structures also need to remain functional so that rescue and recovery operations can be performed. Code provisions (ductility based) for seismic design of structures all over the world have focused primarily on achieving “Collapse Prevention” within acceptable limits, at the expense of inflicting damage to structural, non-structural, architectural elements, and contents, resulting in loss of function.
Effects of Polyvinyl Alcohol Fiber on Bond Behavior between Concrete and Steel Rebar
Authors: Zhang Xuhui , Lu Qi
Published: February 2024

The effects of Polyvinyl alcohol (PVA) fibers on the bonding behavior between reinforcement and concrete is studied by experiments. The effects of PVA fibers, rebar diameter and cover depth on bond behavior are clarified. Results show that PVA fibers affect negatively on bonding in ascending branches both for the pull-out and splitting cases, but improve the bonding in descending branches after peak stress for splitting case. In the present test, the maximum decrement of bond strength is about 16.2% with PVA fiber less than 0.6%. PVA fibers restricts both the macro-cracking and micro-cracking for splitting case, the former one seems much more significant than later one. The effects of rebar diameter and cover depth on bonding become slight and significant with increment content of PVA fibers, respectively.
Condition Assessment and measures to Repair and Retrofit Baghajatin ROB, Kolkata
Authors: Gorai Amit Kumar , Kaushik Abhishek
Published: February 2024

This paper provides a comprehensive evaluation of Baghajatin ROB, located on the trunk route of the EM bypass of Kolkata Metropolitan, India. The bridge has been subjected to increased traffic volume, aggressive weathering conditions, and lack of proper maintenance over the years, resulting in its gradual deterioration. This paper aims to highlight the existing state of the ROB and discusses the methodology adopted to repair and retrofit. It includes the current progress of the repair and retrofitting at the site and the challenges involved in construction. This study provides value to engineers, policymakers, and infrastructure stakeholders seeking to develop effective strategies for maintaining and upgrading crucial infrastructure.
Effect of Vertical Irregularities on Buildings in Different Seismic Zones of India
Authors: Pradhan Shrey , Ahmad Musharraf , Baghel Praveen , Kaloni Smita , Bhatra Shashank
Published: February 2024

Vertically irregular buildings are frequently constructed all over the world for both functional and aesthetic reasons. However, post-earthquake fact-finding survey studies reported that buildings with vertical irregularities were extremely seismically vulnerable. As a result, it is critical to investigate the causes of their high seismic vulnerability in order to enhance their performance. The vertical irregularities in the buildings are caused by asymmetric distributions of mass, stiffness, and strength. These irregularities in the structures results in the floor rotations (torsional response) in addition to floor translations. In this study, the seismic behaviour of vertical irregular buildings located in different seismic zones of India are assessed. The vertical irregular building configurations such as step back, set back, step back-set back, and split foundation are considered in this study. The analysis is performed using finite element software. From the study, it is observed that the performance of vertically irregular building is different in different seismic zones.

Keywords: Include a list of not more than 10 keywords, for example: post-tensioning; anchors; slabs; walls; high-rise buildings.
The Sheaf: Expressive Geometry Through Collaborative Computational Design and Low-Tech Construction Methods
Authors: Johansson Niklas , Nordström Lukas , Runberger Jonas , Sehlström Alexander
Published: February 2024

This paper presents the design development of The Sheaf — a 12-meter-high iconic timber-diagrid hyperboloid lookout tower, from concept to detailed design. The Sheaf was the winning proposal in an architectural competition in 2019 for a lookout tower in Varberg, Sweden. A close dialogue between architect and engineer propelled the iterative design development, initially exploring the concept and later solving details leading to a sustainable, material-efficient, and expressive tower using simple, affordable building elements. The alternating use of digital parametric models and physical model tests supported the decision-making, allowing quick exploration of viable alternatives and the client to get involved.
Different Approach of the Construction Sustainability
Authors: Bob Corneliu
Published: February 2024

The paper presents a new approach for obtaining the sustainability of the construction works. The application of the sustainability aspects is presented on two different types of constructions.

The first application considers into account the analysis of a multi-store structure. The structure is made of three different types of structural elements: R.C. structure, Steel structure and Masonry structure. The parameters for the sustainability approach were: energy consumption, direct cost, manpower and horizontal capacity force.

The second study shows the sustainability of a structural and hydrothermal rehabilitation intervention on a historical building. The analysis will refer at three situations of the building: initial state; the common methods for insulating layer, the innovative solution with aired layer between the heat insulating and the masonry.
Effects of Moisture Ingression In Building Envelope Through Moisture Index (MI) And Wind Driven Rain Index (WDRI)
Authors: Kangoo Harris Showkat , Moharana Sumedha , Parida Lukesh
Published: February 2024

Moisture ingression in building envelopes offers significant structural integrity and performance challenges, leading to costly rehabilitation repairs and reduced comfort for residents. Building moisture can cause Inadequate Ventilation, fungal growth and other microbial contamination, corrosion, salt crystallization, and other moisture-related deterioration. This study investigates the effect of moisture ingress due to rainwater infiltration and its diffusion into the building facades. In addition, this research utilizes moisture modelling using moisture index (MI) and wind-driven rain index (WDRI). Furthermore, Indian standard codes and instructions were used for WDRI computations. Finally, hygrothermal analysis was conducted using WUFI simulation software, concentrating on 2D elements (slabs and walls) found in various locations with varied MI and WDRI values. This research highlights the importance of climate change when constructing structures and the potential benefits of sustainable construction techniques to reduce moisture-related problems.
A magyar orvoscsoport részvétele a törökországi földrengés katasztrófahelyzetének felszámolásában - Antakya, Törökország, 2023
Authors: Várhelyi Levente
Published: February 2024

A természeti katasztrófák sorában talán a földrengések és következményeik azok, amelyek rövid idő alatt, nagy kiterjedésben képesek pusztítást előidézni, a lakosság körében nagyszámú sérülést és halálesetet okozni. Emiatt, valamint az infrastruktúra károsodása miatt a helyi egészségügyi rendszer jelentősen átalakul, túlterhelődik, teljesen vagy részlegesen megsemmisül, és a katasztrófa egészségügyi felszámolása elhúzódik. A különböző országok a természeti katasztrófáktól való fenyegetettségük függvényében katasztrófavédelmi és felszámolási rendszerekkel rendelkeznek, melyek azonban adott esetben nem elegendőek a katasztrófa önerőből történő felszámolásához. Ahhoz külső erőforrások bevonása, esetleg nemzetközi segítségnyújtás is szükséges. Hasonlóképpen történt ez 2023 februárjában Törökországban, ahol egy nagy erejű földrengés több tartományra kiterjedően nagymértékű pusztítást okozott és az összegzett adatok szerint 59 259 emberéletet követelt, 121 704 ember pedig megsérült. Az epicentrum közelében az emberi létesítmények többsége megsemmisült. A katasztrófa bekövetkezte után Törökország nemzetközi segítséget kért, amit követően 96 országból és 16 nemzetközi szervezettől érkezett segítség, 56 országból 6479 fő vett részt a kiérkező mentőcsapatok munkájában. Magyarországon hivatalosan az Országos Katasztrófavédelmi Főigazgatóság rendelkezik hivatásos nehéz kutató-mentőcsapattal, amely hazai szolgálata mellett a világ bármely részén 48 órán belül bevethető. Emellett számos hazai szervezet képes különböző szintű kutató-mentő tevékenységeket ellátni. A kutató-mentőcsapatok különböző szintű egészségügyi ellátóképességekkel is rendelkeznek, melyek igény szerint anyagi-technikai eszközökkel, szakanyagokkal és személyi állománnyal is megerősíthetők.
Exploration of students perceptions and experiences of online learning at the University of KwaZulu-Natal (Howard college)
Authors:   , Xulu Thulile
Published: February 2024

Corona-virus pandemic commonly known as covid-19 had an impact on higher education system globally as a result emergency learning (Online learning) was introduced to avoid the disruption of academic lessons. Online learning required students and lecturers to carry out the teaching and learning process through online platforms such as zoom and other learning sites. Therefore, this study aimed at understanding how university of KwaZulu-Natal (Howard college campus) students perceived and experienced online learning. This study was a qualitative study and thematic analysis was used as form of data analysis. The study used eight participants who were university of KwaZulu-Natal students, and they were doing their first, second and third years across three colleges: College of Humanities, college of Law and management studies and college of agriculture engineering and science that are found within Howard college campus (UKZN). The results indicated that students had different perceptions and different experiences of online learning, as some students indicated that they had positive experience and perception of online learning whereas some perceived and experienced online learning negatively. Online learning offers flexibility, but it also presents various constraints such as Network issues, Lack of technological devices, Loss of human interaction. Some students were less motivated to participate in online learning as they prefer face to face interactions. In conclusion the key factors in conducting online learning are the availability supporting tools, stability of internet connection and access, and applications of online learning must be easy to access and use, they must also be motivating and in the form of combination among several online learning media to provide the best way in delivering and accepting the material during teaching learning process.
Percepción de la calidad del servicio en tiendas de conveniencia
Authors: Contreras-Silva Cecilia Yazmín , Sánchez-Escobar Alexis de Jesús
Published: February 2024

A lo largo de los años, el servicio en las tiendas ha ido cambiando y evolucionando para mejorar la calidad y a su vez para la satisfacción de los clientes. En el estado de Nuevo León una de las empresas más importantes en este giro ha sido OXXO, la cual se ha ido expandiendo en toda esta área haciendo más fácil la compra de productos que años atrás solamente los encontrábamos en los grandes supermercados, en la siguiente investigación se hará un enfoque en los estudiantes de la carrera de negocios internacionales de la FACPyA, entre los cuales sus principales consumos en estas tiendas son: comida rápida y bebidas variadas, servicio de prepago FERIA®, tiempo aire, transacciones bancarias
Percepción de la inserción laboral y familiar de los estudiantes de tres carreras de negocios de la UANL
Authors: Segoviano-Hernández José , Paz-Pérez Luis Alberto , Chapa-Alarcón Patricia
Published: February 2024

El objetivo de esta investigación fue identificar la percepción de los estudiantes de tres carreras de la UANL, del área de ciencias sociales, relacionadas con los negocios, sobre el tema de inclusión en el mundo laboral y familiar. Se diseñó un estudio cuantitativo, descriptivo y transversal, en el que participaron 135 estudiantes de noveno semestre, en una encuesta con los siguientes cuestionamientos: ¿Cuáles son sus expectativas para incorporarse al mundo laboral?, ¿Consideran sus estudios una inversión para conseguir empleo?, ¿Participan en agrupaciones sociales?, y ¿Sus estudios mejoran sus relaciones familiares? Los hallazgos muestran un alto porcentaje de estudiantes que cuentan con empleo y un pequeño porcentaje que considera que le sería difícil obtenerlo. Un alto porcentaje consideró a sus estudios una inversión para incorporarse a un empleo. Se identificó baja participación en organizaciones sociales y un alto acuerdo en que sus estudios les brindan apoyo para mejorar sus relaciones familiares.
Yarı denetimli makine öğrenmesi yöntemini kullanarak müzik türlerinin tespiti
Authors: Turan Alp Kaan , Polat Hüseyin
Published: February 2024

Makine öğrenmesinde, etiketli verinin yetersiz olduğu durumlarda, yarı denetimli öğrenme yöntemleri kullanılarak model başarısı artırılmaya çalışılır. Bu çalışmada, bir yarı denetimli öğrenme yöntemi olan kendi kendine öğrenmenin katkısı değerlendirilmiştir. GTZAN veri kümesi ile yapılan deneysel çalışmada, sekiz ayrı sınıflandırıcıda kendi kendine öğrenme yönteminin model başarısına etkisi ölçümlenmiştir. Yapılan deneysel çalışmalar sonucunda, veri kümesi ve kullanılan sınıflandırıcı gibi belirli kriterlerle bağlı olarak kendi kendine öğrenme yönteminin model performansı üzerinde olumlu etkisi olabileceği görülmüştür.
ATMOSPHERIC BOUNDARY LAYER AND POLLUTION CHANGE AS A RESULT OF RİZE SEA BREEZE FORECAST
Authors: Ceylan Mehmet
Published: February 2024

Rize iline ait 2022 yılı saatlik verilerle deniz meltemi tahmini yapılarak sene bazında sınır tabaka yüksekliği değişimi, tahmin edilen günlerde oluşan sınır tabaka yüksekliği değerleri ile kirleticilerin deniz meltemi olayı boyunca
aylık değişimi üzerine çalışma yapılmıştır. Bu çalışmada R ve Ferret Programları ile deniz meltemi tahmini, atmosferik sınır tabaka yüksekliği – sıcaklık ve kirletici ilişkisi ortaya koyulurken; Hysplit Model kullanılarak kirleticinin
dağılımı üzerine yoğunlaşılmıştır. Deniz meltemi tahmininde en fazla tahmin edilen ay Mayıs ayında 19 defa, en az ise Ekim ayında 1 defa deniz meltemi tespit edilmiştir. Yapılan çalışmada Temmuz ve Ağustos aylarında deniz meltemi
tespit edilememiştir. Rize ili hakim rüzgâr yönü güneydoğulu esmektedir kirleticilerin yayılma yönü de güneyli sonucuna ulaşılmıştır. 2022 yılında en çok yayılan kirleticinin NO2 olduğu, en az ise SO2; gün bazında en fazla deniz
meltemi tespit edilen Mayıs ayında hakim kirletici NOx, en az yayılım gösteren kirletici ise PM10’dur. Atmosferik sınır tabaka yüksekliğinin sıcaklık ile doğru orantılı olduğu ve sıcaklık ortalamalarının en yüksek olduğu ay Ağustos
ayında ve sınır tabaka yüksekliğinin de (960.6 m) Ağustos ayında olduğu, deniz meltemi tahmini yapılan ayda en yüksek sınır tabaka yüksekliği 18 Eylül ayında olduğu ve sıcaklığında diğer meltemli günlere göre daha fazladır. Kirleticilerin
mevsimsel analizinde SO2 hariç diğer kirleticilerin güneydoğulu yönlerden aldığı tespit edilmiştir.
Suspected dermatophytosis in Sentul Debu chickens at a chicken farm in Majalengka Regency, West Java
Authors: Zega Defornatasya Indah Sinta Nadania , Hermawan Firda Aisyah , Triyatjaya Yoga , Khairani Shafia , Pratiwi Unita
Published: February 2024

Dermatophytosis in chickens or avian ringworms is a zoonotic disease caused by fungi in the Dermatophyta group. This article reports a case of suspected dermatophytosis in Sentul Debu chickens on a chicken farm in Majalengka Regency, West Java. Three 11 month old male Sentul Debu chickens in one of the postal system rearing cages showed clinical symptoms in the form of white scales on their head, comb, and wattles. Diagnosis and treatment are based on clinical symptoms and visible lesions. Treatment uses an ointment with the active ingredient sulfur which is given 1-2 times/day for 7 days. The results of the treatment showed healing, with the head, comb, and wattle appearing to be clean from white scales.
The Role of 7P Marketing Mix toward Consumer Satisfaction and Loyalty of XYZ Beauty Clinic
Authors: Alwinie Ade Agusti , Nurhayati Popong , Sartono Bagus
Published: February 2024

The XYZ Beauty Clinic has many branches throughout Indonesia, including the Metropolitan Mall (MM) Bekasi branch, which has been established since 2011. Over time, the XYZ MM Clinic has faced various challenges, such as a decrease in the frequency of customer visits. This study aims to analyze consumer perceptions, factors that affect consumer satisfaction and loyalty, and the level of satisfaction and loyalty of XYZ Beauty Clinic consumers. The study used a cross-sectional design. The sampling technique used purposive sampling involving 152 respondents who were at least 17 years old and had visited at least twice in the last year. Data were processed quantitatively using SEM-PLS, Customer Satisfaction Index (CSI), and Customer Loyalty Index (CLI) to test the hypotheses and measure the level of consumer satisfaction and loyalty. The results indicated that consumer perception with low satisfaction and low loyalty are consumers who work as entrepreneurs, consumers who earn less than 5 million a month, as well as consumers who live in Tangerang and Bogor. The marketing mix that affects consumer satisfaction includes product, promotion, process, people, and physical evidence. Customer satisfaction affects customer loyalty. The level of customer satisfaction shows satisfactory results and the level of customer loyalty shows loyal results. Based on the research results, clinics are advised to prioritize consumer groups with low perceptions of satisfaction
The The Influence of Knowledge and Risk Perception on Food Label Reading Behavior among Adolescents in Rural and Urban Areas of Bogor
Authors: Hajijah Rengganis Novyanti , Retnaningsih Retnaningsih
Published: February 2024

Reading food labels is one way consumers learn about the products they buy. This study determined the influence of knowledge and risk perception on food label reading behavior among adolescents in rural and urban Bogor. This study had a cross-sectional design. Purposive sampling was used to gather 132 participants, including 66 adolescents in rural areas and 66 adolescents in urban areas. The results showed that more than half of the participants had moderate knowledge of food labeling. The knowledge of the rural and urban samples was the same. Operational risk was the most perceived risk for both the rural and urban samples. There were no significant differences in all dimensions of risk perception between rural and urban youths. The average food label reading behavior score in rural areas was higher than that in urban areas. Psychological risk perception influences food label-reading behavior in rural areas. Overall, functional risk perception influenced food label-reading behavior. Based on these results, it is necessary to increase education on the importance of food labels to build good risk perception so that food label reading behavior increases.
Kinesiotherapy and quality of life after breast cancer surgery: A systematic review with meta-analysis
Authors: Soares Leonardo Ribeiro , Ribeiro Matheus Gonçalves
Published: February 2024

Objective: To verify whether kinesiotherapy has an influence on the quality of life of women with breast cancer in the postoperative period. Methodology: This is a meta-analysis conducted under the recommendations of Cochrane and PRISMA. The search was carried out in the PubMed, Cochrane, and Regional Portal of the Virtual Health Library databases, searching for randomized and observational studies that compared the performance of kinesiotherapy protocols versus the non-performance in patients undergoing breast cancer surgery. The evaluated outcomes were global health status, physical function, emotional function, and social function. Statistical analyses were performed using the RevMan 5.1.7 program, and heterogeneity was evaluated with I². Results: A total of 190 patients were included in 4 studies, with a mean age of 54.28 (±9.91) years. Of this sample, 139 (73.16%) underwent mastectomy. Three studies performed a before– after evaluation, and one study evaluated intervention versus non-intervention in two different groups. Among the evaluated outcomes, global health status (Std. MD 0.78; 95%CI 0.13–1.43; p=0.02; I²=87%) and social function (Std. MD 0.53; 95%CI 0.14–0.92; p=0.007; I²=56%) showed significant results favoring kinesiotherapy. As for the outcomes physical function (Std. MD 1.05; 95%CI 0.04–2.15; p=0.06; I²=94%) and emotional function (Std. MD 0.53; 95%CI 0.36–1.42; p=0.25; I²=91%), we did not observe statistical significance. Conclusion: Kinesiotherapy can improve the quality of life of women undergoing surgical treatment for breast cancer, especially in terms of overall health status and social functioning. Physical function and emotional function were not benefited by the intervention, but the inclusion of new studies and the increase in the sample size can reverse this result.
Religiosity and Family Functioning as Predictors of Hope and Resilience during the COVID-19 Pandemic among African American and Latinx College Students with Asthma
Authors: Corona Rosalie , Everhart Robin S. , Ramos Mayra S. , Lohr Katherine D. , Holder Rachel L.
Published: February 2024

Being resilient and hopeful in the face of adversity can promote health and academic outcomes. We sought to determine whether religiosity and family functioning pre-pandemic predicted resilience and hope during the pandemic in a sample of 105 African American and Latinx college students with asthma (Mage = 19.09 years, SD = 1.01). Participants completed an online survey prior to the pandemic and one during the pandemic. In simple regressions, controlling for age, race/ethnicity, gender, and asthma control, greater religious commitment, better family functioning, and less COVID-19 impact were associated with higher resilience scores. Only greater religious commitment was associated with higher hope scores. In a hierarchical regression predicting resilience from all variables, religiosity and family functioning were associated with resilience above and beyond COVID-19 impact and covariates. Findings highlight the importance of family functioning and religiosity—two cultural factors that are salient in African American and Latinx communities—in resiliency and hope.
Determinan Perilaku Seksual Remaja Di Provinsi Sumatera Utara (Analisis Data Sikap remaja 2019)
Authors: Ramadhani Suci , Siregar Putra Apriadi
Published: February 2024

ABSTRAKPendahuluan, Masalah Perilaku seksual pranikah merupakan salah satu masalah yang terjadi pada tingkat remaja. Perilaku seksual pranikah merupakan salah satu akibat dari pergaulan bebas yang dilakukan oleh kelompok remaja pertengahan dan akhir. Alasan dilakukannya tinjauan ini adalah untuk merinci Determinan Perilaku Seksual Remaja di Provinsi Sumatera Utara berdasarkan data SKAP Remaja 2019. Bahan dan metode, Penelitian ini menggunakan data sekunder dengan desain analitik cross sectional. Populasi penelitian ini adalah remaja berusia 10-24 tahun dan belum menikah. Sampel penelitian berjumlah 1.833 remaja. Teknik analisis data menggunakan distribusi frekuensi, pemeriksaan hubungan antara variabel bebas dan variabel terikat menggunakan uji chi-squar . Tujuan Penelitian, Untuk menganalisis determinan perilaku seksual remaja di provinsi sumatera utara berdasarkan data SKAP remaja tahun 2019. Hasil/temuan, berdasarkan data SKAP remaja 2019 ditemukan determinan perilaku seksual pada remaja di Provinsi Sumatera Utara sebanyak 26,7% remaja. Kesimpulan, Berdasarkan data SKAP 2019 yang menjadi determinan perilaku seksual adalah jenis kelamin, usia, pendidikan, tempat tinggal, perilaku berpacaran. Kata Kunci : Perilaku seksual, Remaja, Determinan
Profil Kandungan Nutrisi dalam Buah Nanas Kota Kotamobagu Sulawesi Utara: Kajian Komprehensif untuk Potensi Kesehatan
Authors: Jumu La , Warouw Nouvy Helda , Krisanty Paula , Istyanto Febry
Published: February 2024

ABSTRAKPendahuluan, Nanas adalah buah tropis yang memiliki aspek botani yang menarik, kaya akan nutrisi, memiliki manfaat kesehatan potensial, serta memiliki potensi ekonomi yang signifikan. Salah satu kota penghasil nanas terbaik adalah Kotamobagu yang berada di Sulawesi Utara. Alasan dilakukanya kajian ini adalah untuk mengetahui kandungan nutrisi dalam buah nanas Kotamobagu. Bahan dan Metode, Pemeriksaan kandungan dengan menggunakan nanas segar asal Kotamobagu yang selanjutnya pemeriksaan kimia berbasis laboratorium. Tujuan Penelitian, Untuk mengetahui gambaran profil kandungan nutrisi buah nanas Kotamobagu. Hasil, berdasarkan hasil pemeriksaan laboratorium berbasis spektrofotometri didapatkan 29 zat gizi yang baik untuk kesehatan mulai dai multivitamin dan mineral. Kesimpulan, buah nanas Kotamobagu kaya akan nutrisi mulai dari vitamin dan mineral yang baik untuk menunjang kesehatan. Kata kunci: Nanas, kotamobagu, nutrisi, multivitamin, mineral