Relevant bibliographies by topics / Barriers

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Barriers'

Author: Grafiati
Published: 4 June 2021
Last updated: 31 October 2024

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Journal articles on the topic "Barriers"

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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 noise-reducing barriers on the geometry and shape of the barrier, and to provide recommendations for the design and selection of noise barriers.
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Rezapour, Mahdi, and Khaled Ksaibati. "Trivariate Copula for Modeling Barriers Crash Severity, Accounting for Policy Endogeneity." Future Transportation 1, no. 3 (November 1, 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 accounting for the possible endogeneity in the dataset and ignoring correlation between regressors’ error terms might result in biased or erroneous coefficients’ estimates. That is especially true in the presence of strong correlations across models’ error terms. Thus, this study was conducted to model barriers’ crash severity by taking into consideration the endogeneity and correlations across the models’ error terms. Here, the trivariate copula-based method was implemented to simultaneously model traffic barrier crash severity, shoulder width and barrier’s types, while accounting for interrelationships across the models’ error terms. The results provide strong evidence of correlations between the unseen factors to the selections of barrier’s types, shoulder width installation, and crash injury levels. For instance, we found in the presence of accounting for endogeneity and correlation between unseen factors, concrete traffic barrier type and higher shoulder width installation are negatively correlated with unseen factors contributing to severe barriers’ crashes That is despite the fact that the observed factors of those predictors were found to have a reverse impact on the severity of barriers’ crashes.
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Ingole, Prof Ruchira S., Mr Pritesh R. Hage, Mr Sattyam V. Giri, Mr Manish G. Dhaye, Mr Vivek Kalamkar, Mr Nikhil Shinde, and Miss Bahgyashree Tumbade. "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 (May 31, 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 rotational energy to propel the vehicle forward rather than potentially breaking through an immovable barrier. When a car hits the barrier, the rotating barrel converts shock from the vehicle to rotational energy. Upper and lower frames adjust tires of large and small vehicles to prevent the steering system from a functional loss. The Rolling Barrier can be effectively used in curved roads sections, ramps, medians and entrance or exit ramps in parking garages. In this paper, the description and studies of Rolling Barriers are elaborated. The latest emerging technologies for safety of road is focusing on finding new ways/methods for reducing accidents and reducing damage due to accidents. In a study it has been revealed that many accidents occur at horizontal curves. By using rolling barriers on horizontal curve, number of deaths, damage to vehicle or injury to human body can be minimized. Use of these rolling barriers have proved to be effective. It has been used in many developed countries and it should be used in India to minimize accidents. Keywords: Rolling barriers system, rolling barriers, accidents, horizontal curve, rolling barriers on horizontal curve.
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Raut, Mr Abhijit. "Automotive Safety Rolling Barrier." International Journal for Research in Applied Science and Engineering Technology 9, no. VII (July 20, 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 energy to propel the vehicle forward rather than potentially breaking through an immovable barrier. When a car hits the barrier, the rotating barrel converts shock from the vehicle to rotational energy. Upper and lower frames adjust tires of large and small vehicles to prevent the steering system from a functional loss. The Rolling Barrier can be effectively used in curved roads sections, ramps, medians and entrance or exit ramps in parking garages. In this paper, the description and studies of Rolling Barriers are elaborated. In 2015, there were 63,805 traffic accidents over on the Maharashtra, India, with 54.2 % composed of vehicles that crashed into longitudinal barriers. Such accidents can be drastically reduced if more safe barriers are installed for traffic safety. A small Korean manufacturing company invented a new concept longitudinal barrier, the Rolling Barrier (RB), which has continuous pipes covered with urethane rings. This study aims to evaluate the effectiveness of the RB & to understand the RB’s characteristics of crash cushioning, how to correct the vehicle’s running direction & the required strength of barriers. Experiments with barriers performance & crashing vehicle behavior at curved sections using a 1.3-ton passenger car & a 3.5-ton truck showed satisfactory vehicle behavior as they ran parallel with the RB after crashing. The structural problem of the RB wasn’t found during the time of the crash. In the strength performance test using the 8-ton truck & in the passenger protection test using the 1.3-ton passenger car, the RB satisfied the Ministry of Construction & Transportation’s “ Guidelines for Installation & Management of Road Safety Facilities.” The differences between the RB & conventional barriers where crash cushioning & required strength of barriers were involved were verified by mathematical equations. The RB can be effectively used in curved road sections, ramps, medians & entrance/exit ramps in parking garages. Keywords: -accidents, longitudinal barrier, rolling barrier, traffic barrier, vehicle, collision
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Garcia, F., O. Rodriguez, J. Mesa, J. D. T. Arruda-Neto, V. P. Likhachev, E. Garrote, R. Capote, and F. Guzmán. "BARRIER code: Calculation of fission barriers." Computer Physics Communications 120, no. 1 (July 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 (January 27, 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, physicochemical (ion exchange) C, chemical D and biological E. Indicators of geochemical migration barriers. To assess the geochemical barriers to migration, A. I. Perelman suggested using barrier contrast indicators and the barrier gradient. Wherein, the barrier contrast is calculated as the ratio of the chemical element concentration on the barrier to its quantity up to the barrier. Barrier gradient is the ratio of soil differences before and after the barrier to its length. Indicators of pedogeochemical migration barriers. In soil science, as the analogue of the barrier contrast are: the contrast ratio, the coefficient of intra-profile differentiation, alluvial-accumulative coefficients. As an analogue of the gradient barriers, there are indices of absolute and relative gradients of pedogeochemical migration barriers. Indicators of Pedogeochemical migration barriers manifest that in the chernozems of ordinary and southern at Kryvyi Rih areas, the accumulation of heavy metals in the humus transition and humus accumulation horizons has been revealed. Wherein, the more intensive action of soil migration barriers is naturally revealed in chernozems of ordinary, in comparison with chernozems southern.
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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 (June 15, 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 for increasing the performance of concrete barriers purposely designed for tunnel installations. This research presents the new “NDBA Tunnel” concrete safety barrier designed and constructed by the Italian Road Operator ANAS indicated to be installed in road tunnel sections for safety improvements. In Europe, road safety barriers must be designed in compliance with the European Standard EN 1317. Therefore, the barrier “NDBA Tunnel” was subject to the TB11 and TB81 full-scale crash tests according to the European EN 1317 regulation. The results prove the barrier's ability to absorb impact loads of light and heavy vehicles with a working width W2. Therefore, the NDBA concrete barrier can be installed on existing or new tunnels at a distance less than or equal to 70 cm from the facing of the tunnel wall.
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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 roadside barrier. The best shape for inclined median barriers when erected inside parallel barriers was seen to be the tilted designed with 10 degrees slope.
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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 clinics. Methods: This study was conducted during the first cohort of a cluster randomized controlled trial testing the effectiveness of the Leadership and Organizational Change for Implementation (LOCI) strategy to implement motivational interviewing (MI) in substance use disorder treatment agencies and clinics. We used a modified nominal group technique (NGT) in which clinic leaders identified barriers faced during the implementation process. Barriers were categorized, then ranked and rated according to leaders’ perceptions of each barrier’s influence on implementation. The barriers were then contextualized through individual qualitative interviews. Results: Fifteen barriers were identified, grouped into staff-level barriers, management-level barriers, and implementation program barriers. Time and resistance to MI were rated as the most influential staff-level barriers. Among management-level barriers, time was also rated highest, followed by turnover and external contractual constraints. The most influential implementation barrier was client apprehension of recording for fidelity assessment and feedback. Individual interviews supported these findings and provided suggested adaptations for future implementation efforts. Conclusion: EBP implementation is an ongoing process whereby implementation strategies must be proactively and strategically tailored to address emergent barriers. This research described a process evaluation that was used to identify 15 emergent and/or persistent barriers related to staff, management, and the implementation program. Using implementation strategies that can be tailored and/or adapted to such emergent barriers is critical to implementation effectiveness. Plain Language Summary Unforeseen barriers often arise during the course of implementation. Conducting evaluations during implementation allows for tailoring the implementation strategy. As part of a larger study using the Leadership and Organizational Change for Implementation (LOCI) strategy to implement motivational interviewing (MI), we collected data from the first cohort of LOCI clinic leaders to identify barriers to MI implementation that persisted despite advanced planning and to understand unanticipated barriers that arose during implementation. Leaders identified 15 barriers faced during the implementation process that fell into three categories: staff-level barriers, management-level barriers, and implementation program barriers. The leaders ranked time as the most influential barrier at both the staff and management levels. Staff apprehension, resistance to MI implementation, and staff turnover were also of significant concern to leaders. Future implementation efforts may benefit from conducting a similar process evaluation during the implementation phase.
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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 (June 23, 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 sufficiently and insufficiently active gay men, (2) identify barrier limitation and self-regulatory efficacy for the reported barriers, and (3) examine the associations between meeting the current PA recommendation, barrier limitation, and self-regulatory efficacy. Participants were 108 self-identified gay males aged 21 to 64 years who completed a web-based survey. A total of 35 general barriers and no population-specific barriers were identified by the sufficiently and insufficiently active groups. The sufficiently active group reported higher self-regulatory efficacy and lower barrier limitation for nearly all reported barriers. A binary logistic regression used to examine the associations between PA, barrier limitation, and self-regulatory efficacy was statistically significant, χ2(2, N = 108) = 19.26, p < .0001, R2 = .16. Only barrier limitation significantly contributed to the model. Future research should continue to examine barriers to PA among gay men to determine whether an intervention needs to be designed specifically for gay men or whether a one-size-fits-all intervention would be effective in helping all men overcome common barriers to engaging in PA.
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Dissertations / Theses on the topic "Barriers"

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Jayasekera, Rasika. "Condoms behind bars barriers to barrier protection /." [New Haven, Conn. : s.n.], 2008. http://ymtdl.med.yale.edu/theses/available/etd-12022008-141338/.

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Fröjdh, Christer. "Schottky barriers and Schottky barrier based device on Si and SiC /." Sundsvall, 1998. http://www.lib.kth.se/abs98/froj0302.pdf.

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Cussler, Edward L. "Diffusion barriers." Universitätsbibliothek Leipzig, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-194127.

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Cussler, Edward L. "Diffusion barriers." Diffusion fundamentals 6 (2007) 72, S. 1-12, 2007. https://ul.qucosa.de/id/qucosa%3A14252.

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Friberg, Viktor, and Heléne Andersson. "Barriers to change." Thesis, Jönköping University, JIBS, Accounting and Finance, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-552.

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Introduktion – Ekonomistyrning innefattar färdigställandet och användandet av finansiell information och det hjälper företagsledare i sitt beslutsfattande. När det sätts i bruk bland människor har det ett dubbelriktat förhållande där systemet och människorna påverkar varandra. När man ser det så är det inte förvånande att många försök att byta styrsystem misslyckas. För att kunna förstå varför en del försök att byta system lyckas och andra misslyckas är det viktigt att veta var motstånd mot förändringar kommer ifrån och hur motståndet verkar. De flesta modeller som behandlar byte av ekonomistyrningssystem tar inte hänsyn till motståndet som finns och de som gör det underskattar dess betydelse. En forskare som går längre än så är Kasurinen. Han har utvecklat en modell i vilken han delar upp barriärerna mot förändring i tre kategorier för att öka förståelsen för dem. Modellen har dock än så länge bara blivit testad i ett sammanhang med ett balanserat styrkort. För att se om modellen är applicerbar även i andra sammanhang ska författarna testa den i ett annat fall.

Metod – Den här studien är genomförd med ett kvalitativt tillvägagångssätt. För att uppfylla syftet har en fallstudie genomförts i det svenska Alpha (fingerat namn), som under den senaste tiden har bytt sitt ekonomistyrsystem. Intervjuerna tog plats på företagets huvudkontor och de hade en semistrukturerad natur. Allt som allt har fem personer blivit intervjuade.

Teoriram – Både interna och externa faktorer kan framdriva en förändring. I modellen är de drivande faktorerna uppdelade i motivators, catalysts och facilities baserat på dess natur och timingen på deras influens. Modellen belyser även ledarnas roll i förändringen och även vad som kallas momentum of change, nämligen förväntningen att förändringen ska fortlöpa kontinuerligt. Sedan så finns det barriärer mot förändring, vilka är faktorer som hindrar, fördröjer och avstyr förändringen. Dessa är indelade i confusers, frustrators och delayers för att öka förståelsen för dem.

Slutsats – Den här fallstudien ger stöd åt Kasurinens model då bevis från alla tre kategorier av barriärer; confusers, frustrators och delayers hittades. De tog även samma form som Kasurinen skriver att de tar och hade samma ursprung. Vad författarna anser saknas i Kasurinens model är att ”oväntade faktorer” ignoreras. I Alphas fall tog dessa oväntade faktorer sig uttryck i form av en börsnotering som inträffade samtidigt som förändringen och som tog samma resurser i anspråk.


Introduction - Management accounting is contained by the preparation and use of financial information and it aids managers in their decision making. Put into a human context it is a two-way relationship where the accounting system and the people within the company influence each other. Seen to this it is not surprising that many attempts to change the management accounting system in a company fail. In order to understand why some implementations succeed and some fail it is important to know how the resistance to those changes works and where it comes from. Most models that deal with management accounting change are excluding this resistance and most of those that recognizes it, tends to give it too little thought. One researcher that has gone further is Kasurinen. He has developed a model in which he has divided these barriers to change into three categories, in order to understand them better. This model has however only been tested in a balanced scorecard context so far. In order to see if this model is applicable on other types of management accounting change the authors will test it in a different context.

Method - This study has been conducted with a qualitative approach. In order to fulfil the purpose a case-study has been carried out in the Swedish company Alpha (which is an assumed name), which lately has been undergoing a management accounting change. The interviews were carried out at Alpha’s head-office and they were of a semi-structured nature. All in all five people were interviewed.

Frame of reference – Both internal and external factors can be the driving forces of change. Firstly, in Kasurinen’s model, the driving factors are divided into motivators, catalysts and facilities depending on the nature and timing of their influence on change. The model also acknowledges the leaders’ role in the change and also what is called the momentum of change, which is the expectation that the change will proceed continuously. Then there are the barriers to change, which are factors that hinder, delay and prevent change. Those are divided into confusers, frustrators and delayers in order to understand them better.

Conclusion – This case-study support Kasurinen’s model in that evidence from all three categories of barriers; confusers, frustrators and delayers were found. They also took the same form as Kasurinen writes they take and had the similar roots. What the authors feel is missing in the model is the fact that “unexpected factors” is ignored. In this case those took the form of an IPO that took place at the same time as the implementation and which required the same resources as the change project.

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Bakker, Shawn Michael. "Barriers to employment." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/mq22701.pdf.

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Ponce, Barbaro Enrique. "Breaking down barriers." Thesis, Georgia Institute of Technology, 1995. http://hdl.handle.net/1853/23427.

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Fruth, Richard Douglas. "Barriers to closure." Virtual Press, 1998. http://liblink.bsu.edu/uhtbin/catkey/1074531.

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"Barriers to Closure" was a series of narratives specifically focusing on reoccurring thoughts, fears and anxieties within the artist's life. Instilled when he was younger, these anxieties were never resolved, thus creating additional fears as he grew into adolescence. Eventually they transformed into an intricate obstacle causing resolution to be a difficult task.These narratives are presented in thick bronze frames which constrain the content into a limited space. The pieces are purposefully small due to the artist's personal restriction of revealing what needs to be seen. Therefore, the viewer must draw closer to the piece in order to view the information presented and relate the body of work to their own hidden fears.This exhibition provided an outlet for the artist to deal with feelings that are difficult to explain/express. Communicating these anxieties through this series of visual narratives, assisted the artist in resolving many personal conflicts.
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Bondarchuk, Julia. "Intercultural communication barriers." Thesis, Київський національний університет технологій та дизайну, 2021. https://er.knutd.edu.ua/handle/123456789/18276.

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Graham, Keith A. "Boundaries and Barriers." Kent State University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=kent1417024422.

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Books on the topic "Barriers"

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Chomsky, Noam. Barriers. Cambridge, Mass: MIT Press, 1986.

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Mirza, Rehana. Barriers. Alexandria, VA: Alexander Street Press, 2004.

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Judith, Evans, and Christian Education Movement, eds. Barriers. London: Christian Education Movement, 1988.

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Chomsky, Noam. Barriers. Cambridge, Mass: MIT Press, 1986.

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Chomsky, Noam. Barriers. Cambridge, Mass: MIT Press, 1986.

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United States. Office of Disability Employment Policy., ed. Attitudinal barriers. Washington, DC: Office of Disability Employment [i.e. Policy], Dept. of Labor, 2002.

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Meunier, Pierre Eugène. Barriers: (comedy). Samaru, Zaria [Nigeria]: Space 2000, Pace Publishers, 1992.

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Verdin, Paul J. From barriers to entry to barriers to survival. Fontainebleau: INSEAD, 1992.

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Carlton, Dennis W. Why barriers to entry are barriers to understanding. Cambridge, MA: National Bureau of Economic Research, 2004.

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Grewendorf, Günther, and Wolfgang Sternefeld, eds. Scrambling and Barriers. Amsterdam: John Benjamins Publishing Company, 1990. http://dx.doi.org/10.1075/la.5.

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Book chapters on the topic "Barriers"

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Rausand, Marvin. "Barriers and Barrier Analysis." In Risk Assessment, 363–407. Hoboken, New Jersey: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118281116.ch12.

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Kielmann, Thilo, Sergei Gorlatch, Utpal Banerjee, Rocco De Nicola, Jack Dongarra, Piotr Luszczek, Paul Feautrier, et al. "Barriers." In Encyclopedia of Parallel Computing, 120. Boston, MA: Springer US, 2011. http://dx.doi.org/10.1007/978-0-387-09766-4_2005.

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Rérat, Patrick. "Barriers." In Cycling to Work, 89–96. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-62256-5_9.

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Balmer, Andrew S., Katie Bulpin, and Susan Molyneux-Hodgson. "Barriers." In Synthetic Biology, 41–79. London: Palgrave Macmillan UK, 2016. http://dx.doi.org/10.1057/9781137495426_2.

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Boström, Magnus, and Rolf Lidskog. "Barriers." In Environmental Sociology and Social Transformation, 122–56. London: Routledge, 2024. http://dx.doi.org/10.4324/9781032628189-5.

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Murphy, Joseph F. "Barriers." In Understanding Communities of School Leadership, 89–116. Cham: Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-23759-1_6.

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Mahbub, Tareq. "Barriers." In Encouraging Foreign Direct Investment (FDI) in Bangladesh’s Power Sector, 73–84. Cham: Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-27990-4_5.

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Taylor, Darby, and Patrick A. Reid. "Barriers." In Encyclopedia of Sport Management, 48–50. Edward Elgar Publishing, 2021. http://dx.doi.org/10.4337/9781800883284.barriers.

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Perrin, Ellen C., Sean M. Hurley, Kathryn Mattern, Lila Flavin, and Ellen E. Pinderhughes. "Barriers and Stigma Experienced by Gay Fathers and Their Children." In Pediatric Collections: LGBTQ+: Support and Care Part 1: Combatting Stigma and Discrimination, 82–90. American Academy of Pediatrics, 2021. http://dx.doi.org/10.1542/9781610024730-barriers.

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BACKGROUND Gay men have become fathers in the context of a heterosexual relationship, by adoption, by donating sperm to 1 or 2 lesbian women and subsequently sharing parenting responsibilities, and/or by engaging the services of a surrogate pregnancy carrier. Despite legal, medical, and social advances, gay fathers and their children continue to experience stigma and avoid situations because of fear of stigma. Increasing evidence reveals that stigma is associated with reduced well-being of children and adults, including psychiatric symptoms and suicidality. METHODS Men throughout the United States who identified as gay and fathers completed an online survey. Dissemination of the survey was enhanced via a “snowball” method, yielding 732 complete responses from 47 states. The survey asked how the respondent had become a father, whether he had encountered barriers, and whether he and his child(ren) had experienced stigma in various social contexts. RESULTS Gay men are increasingly becoming fathers via adoption and with assistance of an unrelated pregnancy carrier. Their pathways to fatherhood vary with socioeconomic class and the extent of legal protections in their state. Respondents reported barriers to becoming a father and stigma associated with fatherhood in multiple social contexts, most often in religious institutions. Fewer barriers and less stigma were experienced by fathers living in states with more legal protections. CONCLUSIONS Despite growing acceptance of parenting by same-gender adults, barriers and stigma persist. States’ legal and social protections for lesbian and gay individuals and families appear to be effective in reducing experiences of stigma for gay fathers.
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"“Noise Barriers” noise barriers." In Formulas of Acoustics, 503–6. Berlin, Heidelberg: Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-76833-3_149.

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Conference papers on the topic "Barriers"

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Zelikov, V., Yu Strukov, V. Razgonyaeva, S. Shiryaev, and Mariya Kazachek. "ANALYSIS OF THE APPLICATION OF ROAD BARRIERS." In Current issues and prospects for the development of modern science. FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov, 2022. http://dx.doi.org/10.34220/cipdms2022_59-67.

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The article presents an analysis of road barriers currently used on highways. The deformation of the road barrier, determined by the dynamic deflection and working width, is considered. The influence of the design of road barriers on the severity of the collision of motorcyclists with the barrier is described.
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Zhang, Yuan, and Evelyn Duesterwald. "Barrier matching for programs with textually unaligned barriers." In the 12th ACM SIGPLAN symposium. New York, New York, USA: ACM Press, 2007. http://dx.doi.org/10.1145/1229428.1229472.

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Aadnøy, Bernt S., Tron G. Kristiansen, and Mesfin A. Belayneh. "A Unified Model for Shale Barriers." In SPE/IADC International Drilling Conference and Exhibition. SPE, 2023. http://dx.doi.org/10.2118/212556-ms.

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Abstract Cement as barrier material have weaknesses because of inherent shrinkage and lack of robustness over time. In recent years shale barriers have become a likely alternative to cement in many instances. Shale is a natural material with an indefinite lifetime. There are, however, many aspects around using shale as well barriers, related for example to activation and qualification. This paper presents a unified approach from an operational perspective. Firstly the relevant models for shale barrier formation are established. Then the loading required to establish a shale barrier will be defined both from a well pressure perspective and a thermal heating perspective. A mechanistic elastic-plastic model for shale deformation will be derived and coupled to the wellbore situation. Hydration of the shale also help establishing the barrier. Several field cases are presented starting at defining potential shale barrier intervals from UCS logs coupled with an elastoplastic model to define barrier extent. The result is presented as a log showing radius to virgin formation. High MSE and drillability is another parameter identifying weak rocks. A drillability log will also be shown and correlated with the shale barrier extent from the UCS. Finally, after casing is set high end cement bond logs are used to confirm the barriers. The paper presents the field application, defining the optimal log and wellbore pressure conditions to establish an effective shale barrier.
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"Barriers." In 2022 IEEE Symposium on Visual Languages and Human-Centric Computing (VL/HCC). IEEE, 2022. http://dx.doi.org/10.1109/vl/hcc53370.2022.9833099.

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Blackburn, Stephen M., and Antony L. Hosking. "Barriers." In the 4th international symposium. New York, New York, USA: ACM Press, 2004. http://dx.doi.org/10.1145/1029873.1029891.

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TOMPSETT, KR. "OPTIMAL DESIGN OF HIGHWAY NOISE BARRIERS." In Barriers for Noise Control 1985. Institute of Acoustics, 2024. http://dx.doi.org/10.25144/22426.

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FLINDELL, IH, JG WALKER, and JB LARGE. "BARRIERS FOR AIRPORT GROUND NOISE CONTROL." In Barriers for Noise Control 1985. Institute of Acoustics, 2024. http://dx.doi.org/10.25144/22425.

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MACGREGOR, EA. "THE PROPAGATION OF ROAD TRAFFIC NOISE OVER EARTH MOUNDS." In Barriers for Noise Control 1985. Institute of Acoustics, 2024. http://dx.doi.org/10.25144/22424.

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GIBBS, BM, and RNS HAMMAD. "THE ACOUSTIC PROTECTION OF PERFORATED SCREENS FOR BUILDINGS IN HOT CLIMATES." In Barriers for Noise Control 1985. Institute of Acoustics, 2024. http://dx.doi.org/10.25144/22422.

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MARTENS, MJM, FGP CORTEN, and WHT HUISMAN. "A NEW TYPE OF NOISE SCREEN CONSTRUCTED FROM AND BY LIVING PLANTS." In Barriers for Noise Control 1985. Institute of Acoustics, 2024. http://dx.doi.org/10.25144/22427.

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Reports on the topic "Barriers"

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Jiao, Yang, and Shang-Jin Wei. Natural Barriers and Policy Barriers. Cambridge, MA: National Bureau of Economic Research, December 2020. http://dx.doi.org/10.3386/w28171.

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Freeman, H. D., and G. W. Gee. Hanford Protective Barriers Program asphalt barrier studies -- FY 1988. Office of Scientific and Technical Information (OSTI), May 1989. http://dx.doi.org/10.2172/6176115.

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Carlton, Dennis. Why Barriers to Entry are Barriers to Understanding. Cambridge, MA: National Bureau of Economic Research, June 2004. http://dx.doi.org/10.3386/w10577.

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Freeman, H. D., and G. W. Gee. Hanford protective barriers program: Status of asphalt barrier studies - FY 1989. Office of Scientific and Technical Information (OSTI), November 1989. http://dx.doi.org/10.2172/5450019.

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Abdou, Marwa, Ronald Butiong, Utsav Kumar, and Ben Shepherd. Borders without Barriers:. Manila, Philippines: Asian Development Bank, November 2019. http://dx.doi.org/10.22617/tcs190523-2.

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Carlton, Dennis. Barriers To Entry. Cambridge, MA: National Bureau of Economic Research, October 2005. http://dx.doi.org/10.3386/w11645.

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León, Gianmarco, and Alberto E. Chong. Barriers to Exit. Inter-American Development Bank, August 2006. http://dx.doi.org/10.18235/0010866.

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Unlike previous empirical studies that focus on barriers to entry in international trade, we focus on barriers to exit as measured by passport costs for a cross-section of countries. We test four common theories on the determinants of such exit barriers and find that macroeconomic and brain-drain explanations do explain high barriers to exit. However, institutional and cultural hypotheses do not appear to be empirically robust explanations of such high barriers. Our findings hold when applying instrumental variables, changes in specification, and changes in cross-country periods.
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Baldwin, Richard. Factor Market Barriers are Trade Barriers: Gains From Trade in 1992. Cambridge, MA: National Bureau of Economic Research, July 1988. http://dx.doi.org/10.3386/w2656.

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VAN Schilfgaarde, Mark. Investigation of Schottky Barriers. Fort Belvoir, VA: Defense Technical Information Center, October 1988. http://dx.doi.org/10.21236/ada204355.

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PAUL E. PIERCE. SUBSURFACE VENTILATION ISOLATION BARRIERS. Office of Scientific and Technical Information (OSTI), September 1997. http://dx.doi.org/10.2172/778589.

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