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Journal articles on the topic 'Barriers'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Strazdas, Edgaras, and Tomas Januševičius. "NOISE BARRIERS EFFICIENCY DEPENDENCE ON THEIR SHAPE AND GEOMETRY." Mokslas - Lietuvos ateitis 15 (September 18, 2023): 1–5. http://dx.doi.org/10.3846/mla.2023.19430.

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The work examines noise barriers and evaluates their effectiveness when changing their geometry and shape. Noise barriers are one of the most effective and widely used methods of reducing noise caused by road and railway transport. The effectiveness of the barrier depends on the materials used in the construction, the barrier’s height, geometry, shape, and the acoustic properties of the additional elements installed on top of the barriers. The aim of the work is to review and analyze the scientific literature, which would allow to evaluate the dependence of the acoustic characteristics of nois

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2

Rezapour, Mahdi, and Khaled Ksaibati. "Trivariate Copula for Modeling Barriers Crash Severity, Accounting for Policy Endogeneity." Future Transportation 1, no. 3 (2021): 601–14. http://dx.doi.org/10.3390/futuretransp1030032.

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Studies have been implemented in the literature to enhance the safety of traffic barriers by identification of the contributory factors to those crashes. However, almost all those past studies are subject to potential pitfalls of just answering the cause-and-effect question by traditional statistical methods, which fail to account for possible endogeneity. Modeling traffic barrier crash severity with traditional statistical methods might be biased as many parameters such as barrier’s types is endogenous to unseen factors including policy makers’ decisions in allocating those barriers. Not acco

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Ingole, Prof Ruchira S., Mr Pritesh R. Hage, Mr Sattyam V. Giri, et al. "Analysis of Traffic Volume and Accidents for Rolling Barrier System at NH06 Khamgaon." International Journal for Research in Applied Science and Engineering Technology 10, no. 5 (2022): 1144–49. http://dx.doi.org/10.22214/ijraset.2022.42462.

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Abstract: The government is always looking at the latest technology that can ensure safety of road users, as outlined in the construction industry transformation plan. A small Korean manufacturing company invented a new concept longitudinal barrier, (The Rolling Barrier) which had continuous pipes covered with urethane rings. This study aims to evaluate the effectiveness of the “Rolling Barrier” and to understand the Rolling Barrier’s characteristics of crash cushioning, how to correct the vehicles running direction and the required strength of barriers. They convert that impact energy into ro

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Raut, Mr Abhijit. "Automotive Safety Rolling Barrier." International Journal for Research in Applied Science and Engineering Technology 9, no. VII (2021): 1684–705. http://dx.doi.org/10.22214/ijraset.2021.36250.

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The government is always looking at the latest technology that can ensure safety of road users, as outlined in the construction industry transformation plan. A small Korean manufacturing company invented a new concept longitudinal barrier, (The Rolling Barrier) which had continuous pipes covered with urethane rings. This study aims to evaluate the effectiveness of the “Rolling Barrier” and to understand the Rolling Barrier’s characteristics of crash cushioning, how to correct the vehicles running direction and the required strength of barriers. They convert that impact energy into rotational e

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5

Garcia, F., O. Rodriguez, J. Mesa, et al. "BARRIER code: Calculation of fission barriers." Computer Physics Communications 120, no. 1 (1999): 57–70. http://dx.doi.org/10.1016/s0010-4655(99)00199-x.

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Savosko, V. M. "Indicators for pedogeochemical barriers of heavy metals’ migration." Fundamental and Applied Soil Science 19, no. 1 (2019): 15–21. http://dx.doi.org/10.15421/041903.

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The aims of this study were to substantiate indicators for pedogeochemical barriers of heavy metals’s migration. The concept of pedogeochemical barriers of heavy metals’migration. Pedogeochemical migration barrier is part of the soil horizon or soil profile, where, as a result of special pedosubstantsiya availability and certain pedogeochemical reactions percolation, there is a significant accumulation of some chemical elements. These barriers act as a «substation-reactionary phenomenon». Pedogeochemical migration barrier grouped into five types: mechanical A, physical (sorption) B, physicoche

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Guerrieri, Marco, and Nicola Dinnella. "Improving Traffic Safety in Existing and New Road Tunnels with the Novel NDBA Concrete Safety Barrier." Transport and Telecommunication Journal 25, no. 3 (2024): 251–65. http://dx.doi.org/10.2478/ttj-2024-0018.

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Abstract Two main elements are essential in terms of road traffic safety. The first element is accident prevention and the second is the minimization of accident severity once a crash has occurred. Concrete safety barriers have very good anti-collision performance against roadside obstacles, relatively modest construction and maintenance costs, and low dynamic deflection and therefore are widely used in tunnels. Thanks to their characteristic redirective profile these barriers can redirect errant vehicles into their original lane after collisions. However insufficient research has been done fo

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8

Monazzam, M. R., and Samaneh M. B. Fard. "A Study on the Effect of Different Median Barrier Shapes in Presence of Single or Parallel Noise Screens." Advanced Materials Research 383-390 (November 2011): 5432–37. http://dx.doi.org/10.4028/www.scientific.net/amr.383-390.5432.

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In most mega cities roadside barriers are used to protect receivers from noise pollution during recent years. Median noise barriers, like roadside noise barriers, can be employed to reduce the impact of traffic on roadside communities. In this study, a 2D boundary element method (BEM) is used to predict the insertion loss of different barrier models. It was shown that the performance of a median barrier along with a roadside barrier is affected if another road side barrier will be erected. However, it is possible to apply some new barrier designs to decline the negative effect of the extra roa

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Hatch, Melissa R., Kristine Carandang, Joanna C. Moullin, Mark G. Ehrhart, and Gregory A. Aarons. "Barriers to implementing motivational interviewing in addiction treatment: A nominal group technique process evaluation." Implementation Research and Practice 2 (January 2021): 263348952110184. http://dx.doi.org/10.1177/26334895211018400.

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Background: The successful implementation of evidence-based practices (EBPs) in real-world settings requires an adaptive approach and ongoing process evaluation and tailoring. Although conducting a needs assessment during the preparation phase of implementation is beneficial, it is challenging to predict all barriers to EBP implementation that may arise over the course of implementation and sustainment. This article describes a process evaluation that identified emergent and persistent barriers that impacted the implementation of an EBP across multiple behavioral health organizations and clini

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Cary, Miranda A., Danielle R. Brittain, Mary K. Dinger, Melissa L. Ford, Meagan Cain, and Teresa A. Sharp. "Barriers to Physical Activity Among Gay Men." American Journal of Men's Health 10, no. 5 (2016): 408–17. http://dx.doi.org/10.1177/1557988315569297.

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Gay men may not be physically active at recommended levels to achieve health benefits. Thus, a need exists to identify general (i.e., common across populations) and population-specific barriers that hinder or stop gay men from participating in physical activity (PA). Salient barriers may be identified through the extent each barrier limits PA (i.e., barrier limitation) and the level of one’s confidence to overcome barriers and engage in PA (i.e., self-regulatory efficacy). The purposes of this study were to (1) provide a description of general and population-specific barriers to PA among suffi

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Reid, John D., Robert W. Bielenberg, Ronald K. Faller, Karla A. Lechtenberg, and Dean L. Sicking. "Racetrack SAFER barrier on temporary concrete barriers." International Journal of Crashworthiness 18, no. 4 (2013): 343–55. http://dx.doi.org/10.1080/13588265.2013.794321.

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12

SKALSKI, JANUSZ. "SELFCONSISTENT FUSION BARRIERS AT NEAR BARRIER ENERGIES." International Journal of Modern Physics E 13, no. 01 (2004): 305–8. http://dx.doi.org/10.1142/s0218301304002090.

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Fusion potentials are calculated for a number of reactions within the static Hartree-Fock method with the Skyrme force SkM*. Fusion barriers agree with the data considerably better than reaction Q values. This suggests some error cancellation, possibly with the relative kinetic energy term. Our results are consistent with the idea of fusion hindrance in tip collisions. Some comparison to results of the frozen density method is made.

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Jannah, Muhvidatul, and Nanang Tri Haryadi. "The Effect of Barrier Use on Population Development and Attacks of B.tabaci Genn. on Soybean Plantations." JURNAL AGRI-TEK : Jurnal Penelitian Ilmu-Ilmu Eksakta 25, no. 2 (2024): 1–8. https://doi.org/10.33319/agtek.v25i2.120.

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Soybean (Glycine max (L) Merrill) is one of the food crop commodities in Indonesia. Soybean crop productivity decreased due to one of them being attack of B. tabaci Genn. One of the ways for controlling B. tabaci Genn. pests in soybean cultivation is by using a barrier. Barrier is an integrated pest management (IPM) which is based on ecological balance in nature. Pests are prevented from coming and attacking crops by using various forms of barriers that can slow down the movement of pests. The use of barriers can be a useful tool to reduce the development of B. tabaci Genn. on planting. This s

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14

Gabauer, Douglas J. "Real-World Performance of Longitudinal Barriers Struck by Large Trucks." Transportation Research Record: Journal of the Transportation Research Board 2309, no. 1 (2012): 127–34. http://dx.doi.org/10.3141/2309-13.

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Very little is known about the real-world performance of traffic barriers when subjected to impacts by large trucks. This study investigated real-world impacts of large trucks into traffic barriers to determine barrier crash involvement rates, the impact performance of barriers not specifically designed to redirect large trucks, and the real-world performance of barriers specifically designed for large trucks. Data sources included the Fatality Analysis Reporting System (2000 to 2009), the General Estimates System (2000 to 2009), and the Large Truck Crash Causation Study (155 in-depth crashes

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Erickson-DiRenzo, Elizabeth. "Barrier Function of the Laryngeal Mucosa." Perspectives of the ASHA Special Interest Groups 1, no. 3 (2016): 54–62. http://dx.doi.org/10.1044/persp1.sig3.54.

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The larynx is exposed to nearly continuous insults from the airway, digestive tract, and through the mechanical stresses of vocal fold vibration. The protection from these insults offered by laryngeal mucosa is called barrier function. Two essential mucosal barriers include the epithelial barrier and the mucus barrier. The purpose of this article is to provide an introduction to our current knowledge of the laryngeal epithelial and mucus barriers. Specifically, the composition of these barriers will be discussed. Research generating novel model systems to study the epithelial and mucus barrier

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Potter, Trevor, and Marianne Viray. "Barriers to Participation." University of Michigan Journal of Law Reform, no. 36.3 (2025): 547. https://doi.org/10.36646/mjlr.36.3.barriers.

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Despite the nation's founding commitment to participatory democracy, many barriers to candidate and public participation in the electoral process are damaging the public's confidence that our elections are fair and open to full participation by candidates and voters. The nominating processes created by the two major parties mainly serve the goals of party "insiders" and the more politically extreme factions, at the expense of competition and public confidence in the two-party system. At the same time, barriers to minor party and independent candidates-closed primaries, excessive early-voter re

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Maggi, Maria Rita, and Claudia Adduce. "Laboratory Experiments on Reflected Gravity Currents and Implications for Mixing." Water 17, no. 7 (2025): 1062. https://doi.org/10.3390/w17071062.

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When a gravity current encounters a barrier, it is reflected as a moving hydraulic jump or bore. These reflected flows, which play a significant role in estuarine mixing and sediment transport, are often simplified in theoretical models as purely advective processes with no mixing and dilution effects. This study explores the dynamics of gravity currents fully blocked by various inclined barriers, focusing on the resulting mixing behavior. Using an image analysis technique based on light attenuation to capture instantaneous density fields, we reveal how the presence of a barrier influences the

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18

Garip, Belkıs, and Mustafa Şahin Bülbül. "A Blind Student’s Outdoor Science Learning Experience: Barrier Hunting at METU Science and Technology Museum." International Journal of Physics and Chemistry Education 6, no. 2 (2014): 100–109. http://dx.doi.org/10.51724/ijpce.v6i2.59.

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The aim of this study is about how to adapt the science centers to blind students. For this purpose a barrier hunting methodology is used. This methodology includes seven steps such as selecting the group and place, recording the barriers during the visit and evaluating the recorded barriers. According to the barrier hunting with a blind student at METU Science and Technology Museum, barriers are categorized in six dimensions; access barriers to the area, access barriers to the material, access barriers to the information, safety barriers around the area, safety barriers around the material, a

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Kušar, Domen, and Blaž Komac. "Barriers Everyone: A New Method for Multiscale Analysis of Barriers Using the Barrier Index." Moravian Geographical Reports 29, no. 4 (2021): 292–305. http://dx.doi.org/10.2478/mgr-2021-0021.

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Abstract The Barrier Index is presented in this contribution. The index shows the extent to which spatial units of different sizes are closed off by barriers, influencing society by the different “thickness” and “thinness” of boundaries. The article defines the Index and compares land units with barriers in various details. The calculations were made for spatial units from the scale of parcels to one-hectare areas in selected types of regions, selected geographic regions, and border barriers in selected countries. The Index is useful for crossscale analysis and for identifying the underlying c

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20

Cadnum, Jennifer, Annette Jencson, Samir Memic, et al. "Real-World Evidence on the Effectiveness of Plexiglass Barriers in Reducing Aerosol Exposure." Pathogens and Immunity 7, no. 2 (2022): 66–77. http://dx.doi.org/10.20411/pai.v7i2.533.

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Reprinted with permission, Cleveland Clinic Foundation ©2022. All Rights Reserved Background: Barriers are commonly installed in workplace situations where physical distancing cannot be maintained to reduce the risk for transmission of respiratory viruses. Although some types of barriers have been shown to reduce exposure to aerosols in laboratory-based testing, limited information is available on the efficacy of barriers in real-world settings. Methods: In an acute care hospital, we tested the effectiveness of in-use plexiglass barriers in reducing exposure of staff to aerosolized particles.

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Redondo, Javier, Pau Gaja-Silvestre, Luis Godinho, and Paulo Amado-Mendes. "A Simple Method to Estimate the In Situ Performance of Noise Barriers." Applied Sciences 12, no. 14 (2022): 7027. http://dx.doi.org/10.3390/app12147027.

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Noise barriers are usually classified attending to their intrinsic acoustic characteristics. This is standardized by the European Standards EN 1793, parts 2 and 6, in which a single parameter, DLR or DLSI, is defined in order to quantify the sound insulation performance of noise barriers. However, the final performance of a noise barrier, quantified by the so-called insertion loss, IL is not only dependent on the insulation provided by the noise barrier, but it is as well affected by geometrical aspects and the acoustic characteristics of the environment where these noise-reducing devices are

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22

Rabaai, Ahmad A., Shereef Abu Al Maati, Nooh Bany Muhammad, and Enas M. Eljamal. "Barriers to invest in NFTs: An innovation resistance theory perspective." Uncertain Supply Chain Management 12, no. 1 (2024): 601–14. http://dx.doi.org/10.5267/j.uscm.2023.8.011.

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Investment in non-fungible tokens (NFTs) has decreased dramatically over the past two years, despite the financial value and potential importance of NFTs for the future of the economy and the current decentralized marketplaces. This study investigated the barriers influencing customers' resistance to investing in NFTs using the innovation resistance theory (IRT) components such as usage barriers, value barriers, risk barriers, tradition barriers, and image barriers. The data was gathered from 375 investors via an online questionnaire. To assess and evaluate the suggested model and its hypothes

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Gong, Liyuan, and Xiuling Wang. "Numerical Study of Noise Barriers’ Side Edge Effects on Pollutant Dispersion near Roadside under Various Thermal Stability Conditions." Fluids 3, no. 4 (2018): 105. http://dx.doi.org/10.3390/fluids3040105.

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Roadside noise barrier helps to reduce downwind pollutant concentrations from vehicle emission. This positive characteristic of the construction feature can be explained by its interaction with flow distribution and species dispersion. In this paper, a three-dimensional numerical model has been developed to simulate highway pollutant dispersion—a realizable k-ε model was employed to model turbulent flow, and a non-reaction species dispersion model was applied to simulate species transport. First, numerical models were validated with experimental data, and good agreement was observed. Then, det

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Zaets, Vitaly. "Influence estimation of the inclination angle of the top of the noise protection barrier on its efficiency." Technology audit and production reserves 1, no. 1(57) (2021): 12–16. http://dx.doi.org/10.15587/2706-5448.2021.225474.

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The object of research is the sound field from linear sound sources around a rounded noise barrier of the same height and different angles of inclination of the top part of the barrier. It is known that the effectiveness of noise protection barriers depends primarily on the geometric dimensions of the barrier and the relative position of the sound source, barrier and area of noise protection. A large number of publications have been devoted to the study of the influence of these factors and some others, such as the influence of the earth's surface, sound absorption, sound insulation of the bar

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Vitaly, Zaets. "Influence estimation of the inclination angle of the top of the noise protection barrier on its efficiency." Technology audit and production reserves 1, no. 1(57) (2021): 12–16. https://doi.org/10.15587/2706-5448.2021.225474.

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<em>The object of research is the sound field from linear sound sources around a rounded noise barrier of the same height and different angles of inclination of the top part of the barrier. It is known that the effectiveness of noise protection barriers depends primarily on the geometric dimensions of the barrier and the relative position of the sound source, barrier and area of noise protection. A large number of publications have been devoted to the study of the influence of these factors and some others, such as the influence of the earth's surface, sound absorption, sound insulation of

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Ponomarov, Viktor, Mukola Korchagin, and Yurii Kostenko. "Assessment of the psychological barriers level in the training process of Martial Arts and methods of their neutralization." Scientific Journal of National Pedagogical Dragomanov University. Series 15. Scientific and pedagogical problems of physical culture (physical culture and sports), no. 6(179) (June 21, 2024): 191–95. http://dx.doi.org/10.31392/udu-nc.series15.2024.6(179).35.

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Psychological barriers in sports activities, as in any socio- professional sphere, are a subjective refraction of a problematic situation from the point of view of its potential threat in the form of a syndrome of fear of the unpredictable result of one's actions in this situation. Two conditions are necessary for the emergence of any psychological barrier: the presence of a suitable (unfavorable) external environment and the subject's internal readiness to form a barrier. There are certain limitations in the ability to overcome psychological barriers depending on their qualitative (type, natu

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Zaets, Vitaly, and Dmytro Bida. "Influence of sound-absorping properties of noise protection barriers on road traffic participants." Technology audit and production reserves 6, no. 1(62) (2021): 14–18. http://dx.doi.org/10.15587/2706-5448.2021.244597.

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The object of research is the sound field from linear sound sources between two parallel impedance noise barriers. The presence of barriers changes the structure of the sound field, as a result of which the sound pressure level in the area between the barriers increases. An increase in sound levels leads to both a decrease in the effectiveness of noise barriers and an increase in the negative impact on road users. One of the ways out of this situation is the construction of barriers with sound-absorbing properties. In this paper, the influence of the impedance properties of the barriers at the

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Yuan, Zhenmin, Guodong Ni, Linxiu Wang, et al. "Research on the Barrier Analysis and Strength Measurement of a Prefabricated Building Design." Sustainability 12, no. 7 (2020): 2994. http://dx.doi.org/10.3390/su12072994.

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As a sustainable and cleaner type of facility, prefabricated buildings face more design barriers than traditional non-prefabricated buildings. Identifying and managing these barriers is key to improving the success rate of prefabricated building design. However, direct studies on these design barriers are extremely rare. The present study solved this problem by combining multiple methods, including grounded theory (GT), structured self-intersection matrix (SSIM), analytic network process (ANP), and the linear weighted sum method (LWSM). GT was adopted to identify the barriers to prefabricated

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Gupta, Anchal, Pradeep Kumar Suri, and Rajesh Kumar Singh. "Analyzing the Interaction of Barriers in E-Governance Implementation for Effective Service Quality: Interpretive Structural Modeling Approach." Business Perspectives and Research 7, no. 1 (2018): 59–75. http://dx.doi.org/10.1177/2278533718800562.

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E-Governance is being encouraged in most of the countries of the world for providing effective e-services to their citizens. In India, many planned e-governance projects under the National e-Governance Plan (NeGP) could not be implemented effectively due to various implementation barriers. In this study, the objective is to identify and analyze the key barriers which impede effective implementation of Indian e-governance projects. Based on literature review and experts’ opinion, 14 key barriers in the implementation of e-governance are identified. This is the first type of article where the ca

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T. Raja Ramanna, Dr. M.P. Venkatesh, and Dr. G. Manohar. "Critical barriers to sustainable construction technology adoption in developing countries – A case study in India." International Research Journal on Advanced Engineering Hub (IRJAEH) 2, no. 02 (2024): 271–86. http://dx.doi.org/10.47392/irjaeh.2024.0043.

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Sustainability of the construction is one of the important sector to improve the economy of developing countries. To improve sustainability, precast buildings are adopted in developing countries. Since the sustainability of the precast buildings is affected by various barriers it is essential to determine the barriers that affect their sustainability. Hence the novel Relative Factor Reliable Index framework is utilized to identify the most critical barrier while constructing precast buildings. Thus a survey is conducted with various participants by creating an online questionnaire using Likert

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Lobão, Júlio, and João G. Lopes. "Exploring the psychology of price barriers in Baltic stock markets." Baltic Journal of Management 19, no. 6 (2024): 94–110. http://dx.doi.org/10.1108/bjm-10-2023-0407.

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PurposeThe purpose of this study is to investigate the presence of psychological barriers both in the main stock market indices of the Baltic states and the most actively traded individual stocks. A psychological barrier refers to a specific price point, often at round numbers (i.e. powers of 10), that investors believe is challenging to breach, influencing their behavior and trading decisions.Design/methodology/approachWe conduct uniformity tests and barrier tests, such as barrier proximity tests and barrier hump tests, to evaluate the presence of psychological barriers. Additionally, we expl

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Mayberry, Lindsay S., Shelagh A. Mulvaney, Kevin B. Johnson, and Chandra Y. Osborn. "The MEssaging for Diabetes Intervention Reduced Barriers to Medication Adherence Among Low-Income, Diverse Adults With Type 2." Journal of Diabetes Science and Technology 11, no. 1 (2016): 92–99. http://dx.doi.org/10.1177/1932296816668374.

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Background: Nonadherence to diabetes medication is prevalent and costly. MEssaging for Diabetes (MED), a mobile health (mHealth) intervention, identified and addressed user-specific barriers to medication adherence. We assessed whether MED reduced users’ targeted barriers and if barrier reductions were associated with within-participant improvements in adherence or glycemic control (HbA1c). Methods: Adults (N = 80) with type 2 diabetes completed self-report measures identifying barriers to adherence at baseline and monthly for 3 months. At each assessment, 17 barriers were assessed and ranked

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Muhammad Shaikh, Faiz, Dr Anwar Ali Shah G.Syed, and Zahid Hussain kazi. "ISSURES OF TEXTILE EXPORTERS IN THE CONTEXT OF PAK-INDIA TRADE." INTERNATIONAL JOURNAL OF MANAGEMENT & INFORMATION TECHNOLOGY 10, no. 5 (2015): 2168–76. http://dx.doi.org/10.24297/ijmit.v10i5.620.

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This research investigates the issues of Textile exporters in the context of PAK-India trade relation. Data were collected from 100 exporters by using simple random technique. Data were analyzed by using SPSS-20 version, A structural questionnaire was developed for the reliability and validity of the data. It was revealed that respondents regard governmental regulations, customs procedure and licensing, technical standards and health regulations, sanitary and phytosanitary measures and certification as the major barriers to export. The anti-dumping and tariff barrier are not the major barriers

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Grana, Anna, Nicola Dinnella, and Sandro Chiappone. "Enhancing road safety with the infrastructure-adaptable NDBA 2.0 concrete median barrier: An Italian experience." Archives of Transport 71, no. 3 (2024): 147–68. http://dx.doi.org/10.61089/aot2024.1bp10d20.

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Road safety is a crucial global concern because of the high number of fatalities and injuries resulting from road crashes each year. Median crossover collisions are among the most dangerous crashes that happen on highways, frequently leading to serious or fatal injuries. The main approach to decreasing the occurrence of these types of crashes is the installation of median barriers. When the need for such installations arises, road agencies must choose from various options, including concrete barriers, cable barriers, or metal-beam guardrails. This paper is dedicated to the New Dynamic Barrier

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Dillenhoefer, Stefanie, Florian Stehling, Matthias Welsner, et al. "Barriers for Sports and Exercise Participation and Corresponding Barrier Management in Cystic Fibrosis." International Journal of Environmental Research and Public Health 19, no. 20 (2022): 13150. http://dx.doi.org/10.3390/ijerph192013150.

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Background: Nowadays physical activity (PA)/exercise is an important component of cystic fibrosis (CF) therapy. The aim of the study was to assess the barriers to PA and the barrier management and to explore the effect of supervision on the barriers and barrier management during an exercise program. Methods: In total, 88 people with CF (pwCF) of the ages 6 to 50 years old (mean 24.2 ± 7.9 yrs) participated in the partially supervised 12-month exercise program and filled in a structured and validated questionnaire about barriers to sports and barrier management at baseline. Additionally, 23 pwC

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Vitaly, Zaets, and Bida Dmytro. "Influence of sound-absorping properties of noise protection barriers on road traffic participants." Technology Audit and Production Reserves 6, no. 1(62) (2021): 14–18. https://doi.org/10.15587/2706-5448.2021.244597.

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<em>The object of research is the sound field from linear sound sources between two parallel impedance noise barriers. The presence of barriers changes the structure of the sound field, as a result of which the sound pressure level in the area between the barriers increases. An increase in sound levels leads to both a decrease in the effectiveness of noise barriers and an increase in the negative impact on road users. One of the ways out of this situation is the construction of barriers with sound-absorbing properties. In this paper, the influence of the impedance properties of the barriers at

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Grubeša, Sanja, Hrvoje Domitrović, and Kristijan Jambrošić. "Performance of Traffic Noise Barriers with Varying Cross-Section." PROMET - Traffic&Transportation 23, no. 3 (2011): 161–68. http://dx.doi.org/10.7307/ptt.v23i3.119.

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The efficiency of noise barriers largely depends on their geometry. In this paper, the performance of noise barriers was simulated using the numerical Boundary Element Method (BEM). Traffic noise was particularly considered with its standardized noise spectrum adapted to human hearing. The cross-section of the barriers was varied with the goal of finding the optimum shape in comparison to classical rectangular barriers. The barrier performance was calculated at different receiver points for a fixed barrier height and source position. The magnitude of the insertion loss parameter was used to ev

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Dijkstra, S. Coosje, Judith E. Neter, Maartje M. van Stralen, et al. "The role of perceived barriers in explaining socio-economic status differences in adherence to the fruit, vegetable and fish guidelines in older adults: a mediation study." Public Health Nutrition 18, no. 5 (2014): 797–808. http://dx.doi.org/10.1017/s1368980014001487.

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AbstractObjectiveWe aimed to identify barriers for meeting the fruit, vegetable and fish guidelines in older Dutch adults and to investigate socio-economic status (SES) differences in these barriers. Furthermore, we examined the mediating role of these barriers in the association between SES and adherence to these guidelines.DesignCross-sectional.SettingLongitudinal Aging Study Amsterdam (LASA), the Netherlands.SubjectsWe used data from 1057 community-dwelling adults, aged 55–85 years. SES was measured by level of education and household income. An FFQ was used to assess dietary intake and bar

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Zlot, Amy I., John Librett, David Buchner, and Tom Schmid. "Environmental, Transportation, Social, and Time Barriers to Physical Activity." Journal of Physical Activity and Health 3, no. 1 (2006): 15–21. http://dx.doi.org/10.1123/jpah.3.1.15.

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Purpose:This study examines environmental, transportation, social, and time barriers to physical activity.Methods:Survey questions from the nationally representative Greenstyles survey (N = 2181) were summed to create environmental, transportation, social, and time barrier variables. Logistic regression was used to determine if the barrier variables had a significant association with physical activity levels.Results:Those who have low barriers to physical activity are more likely to meet the recommended physical activity levels compared with those with medium and high barriers. In addition, tr

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Liu, Ruhao, Yu Sun, Xinrui Wang, Baiquan Yan, and Haitao Yu. "Characteristics of Seepage Barriers in Fluvial Reservoirs of Meandering Rivers and Their Impacts on Water Injection Development: A Case Study of Neogene Guantao Formation in Block M, Gudao Oilfield." Geofluids 2022 (April 15, 2022): 1–14. http://dx.doi.org/10.1155/2022/8782179.

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To deepen our understanding of reservoir heterogeneity, seepage barriers in the study area were divided into interlayer, intralayer, and planar levels based on their spatial distribution characteristics and then investigated by taking the third member of the Neogene Guantao Formation in the block M of the Gudao oilfield as an example. Based on their genesis characteristics, the interlayer seepage barriers were divided into the overbank sand-overbank sand type, overbank sand-channel type, isolated channel superposition type, and channel shallow-cut type. The planar seepage barriers were categor

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Anila, Solangi, Iqbal Mirani Jawaid, Ali Jarah Ayaz, Memon Misbah, and Razaque Lanjwani Abdul. "An Analysis: The Effect of Different Barriers in Effective Communication." International Journal of Management Sciences and Business Research 10, no. 09 (2021): 32–35. https://doi.org/10.5281/zenodo.5588281.

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<em>Sharing of ideas, thoughts, and information is considered as communication. In addition, when there is no sharing, there is no communication it means that sharing is necessary for every sort of communication. In communication process a barrier is which creates hurdle in conveying the message from the sender to the receiver. Further, the effective communication becomes flop due to different barriers at college, university and workplace. The purpose of this article is to discuss and understand various types of barriers which create problems in communication like Attitudinal Barriers, Behavio

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Jin, Gao. "Suggestions for Construction of Chinese Green Barrier." Advanced Materials Research 664 (February 2013): 240–44. http://dx.doi.org/10.4028/www.scientific.net/amr.664.240.

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Green barriers of western countries restrict the product export of developing countries. This is a new problem on international trade recent years. After China s entry into WTO, green barriers have become a biggest barrier in Chinese foreign trade. This paper provides the system shortage about Chinese green barriers. So China should launch a campaign to construct the system of green barriers according to Chinese Economic backgrounds. This paper also proposes some law countermeasures to set up and improve the Chinese green barrier system.

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Alfauzy, Muhamad Naufal, and Arfenia Nita. "Determining Barriers Factors That Affecting Indonesian Young Customer Purchase Intention of Sustainable Fashion." Malaysian Journal of Social Sciences and Humanities (MJSSH) 6, no. 8 (2021): 509–17. http://dx.doi.org/10.47405/mjssh.v6i8.938.

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This research aims to generate the correlation between several barrier factors: product design barrier, knowledge barrier, cost barrier, and supply source barrier towards Gen-Y customer purchase intention of sustainable fashion in Indonesia. This research is using the theory that stated barrier factors are directly influencing customer purchase intention. A total of 226 respondents all across Indonesia are selected through the non-probability purposive sampling technique. This study's instrument uses questionnaires that have been adjusted in terms of language and evaluated by using validity an

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Prosviryakov, Alexey, Mikhail Sainov, Andrei Zverev, and Roman Lukichev. "Strength and deformability of different types of geosynthetic barriers." Stroitel stvo nauka i obrazovanie [Construction Science and Education], no. 2 (June 30, 2020): 4. http://dx.doi.org/10.22227/2305-5502.2020.2.4.

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Introduction. Water engineering facilities utilize geosynthetic barriers of various materials, but the most common are polyvinylchloride (PVC) and polyethylene (PE) considered to be the most efficient. However, the utilization of thermoset geosynthetics (PVC and PE) as watertight elements of the geosynthetic barriers of earth dams has also a number of drawbacks. In the course of time, PVC can lose its properties due to plasticizer loss, whereas PE is susceptible to cracking at thermal impacts. That is why it is necessary to consider geosynthetic barriers of other types as alternatives. For thi

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Wardani, Sherly Ayu, Naniek Utami Handayani, and Mochamad Agung Wibowo. "Barriers for implementing reverse logistics in the construction sectors." Journal of Industrial Engineering and Management 15, no. 3 (2022): 385. http://dx.doi.org/10.3926/jiem.3539.

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Purpose: This paper aims to identify the barriers for implementing Reverse Logistics in the construction sector and to rank the barriers between the barrier and the stakeholder, the phase in the project life cycle, and the relevant issues on the emergence of barriers in implementing reverse logisticsDesign/methodology/approach: This research began by identifying barriers re- verse logistics through a systematic literature review. The method used in the systematic literature review was the PRISMA method. The identification of barriers was assessed for their influence on reverse logistics’ succe

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Jeon, Junkee, and Ji-Hun Yoon. "PRICING EXTERNAL-CHAINED BARRIER OPTIONS WITH EXPONENTIAL BARRIERS." Bulletin of the Korean Mathematical Society 53, no. 5 (2016): 1497–530. http://dx.doi.org/10.4134/bkms.b150789.

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Osbaldestin, A. H., and L. N. C. Adamson. "Chaotic correlations in barrier billiards with arbitrary barriers." Journal of Physics A: Mathematical and Theoretical 46, no. 24 (2013): 245101. http://dx.doi.org/10.1088/1751-8113/46/24/245101.

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Pandey, Lakshmi N., and Thomas F. George. "Dynamics of double-barrier heterostructures with doped barriers." Superlattices and Microstructures 13, no. 4 (1993): 417. http://dx.doi.org/10.1006/spmi.1993.1082.

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Sytsma, Terin T., Kate P. Zimmerman, Jennifer B. Manning, et al. "Perceived Barriers to Exercise in the First Trimester of Pregnancy." Journal of Perinatal Education 27, no. 4 (2018): 198–206. http://dx.doi.org/10.1891/1058-1243.27.4.198.

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Regular physical activity has been shown to improve pregnancy outcomes. We sought to identify barriers to exercise during the first trimester of pregnancy. Five hundred forty-nine pregnant women in their first trimester rated barriers to exercise on a scale of 1 (not a barrier) to 5 (a huge barrier) and recorded physical activity (minutes/week). Women were placed into one of three classifications, nonexercisers (zero exercise), infrequent exercisers (<150 minutes/week), or exercisers (≥150 minutes/week). The greatest barriers (mean) were nausea/fatigue (3.0) and lack of time (2.6). Exercise

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Sheikh, Nauman M., Dean C. Alberson, and Linda S. Chatham. "State of the Practice of Cable Barrier Systems." Transportation Research Record: Journal of the Transportation Research Board 2060, no. 1 (2008): 84–91. http://dx.doi.org/10.3141/2060-10.

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This paper presents the state of the practice of the use of cable barrier systems in the United States. A literature review was conducted to identify the types of cable barriers systems being used. The scope of this review included benefits of using cable barriers, available guidelines, policies or procedures related to barrier placement, and issues related to the maintenance and in-service performance of the cable barriers. A comprehensive survey was conducted to identify experiences, practices, and design and construction standards for the use of cable barrier systems. To improve survey qual

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