Relevant bibliographies by topics / Pressures for thinness

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

Academic literature on the topic 'Pressures for thinness'

Author: Grafiati
Published: 4 June 2021
Last updated: 6 February 2022

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Journal articles on the topic "Pressures for thinness"

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Habashy, Jessica, and Kristen M. Culbert. "The Role of Distinct Facets of Perfectionism and Sociocultural Idealization of Thinness on Disordered Eating Symptoms." Journal of Social and Clinical Psychology 38, no. 4 (2019): 343–65. http://dx.doi.org/10.1521/jscp.2019.38.4.343.

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Introduction: Perfectionism is a multidimensional personality style implicated in risk for disordered eating (DE), yet the types of perfectionism most predictive of DE and how perfectionistic tendencies lead to the development of DE remains less clear. This study aimed to determine the types of perfectionism most strongly associated with DE and whether perceived pressures for thinness and thin-ideal internalization serve as intervening variables that explain associations between perfectionism and DE. Methods: An ethnically diverse sample of female college students (n = 154–292) completed well-
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You, Sukkyung, and Kyulee Shin. "Sociocultural Influences, Drive for Thinness, Drive for Muscularity, and Body Dissatisfaction among Korean Undergraduates." International Journal of Environmental Research and Public Health 17, no. 14 (2020): 5260. http://dx.doi.org/10.3390/ijerph17145260.

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For many years, body dissatisfaction was considered a western phenomenon, and was studied mostly in Caucasian women. Recent studies, however, suggest that these issues are also present in men and in other ethnic groups. This research investigated the differential effects of various sociocultural pressures transmitted from the media, one’s parents, and one’s peers on the drives for thinness and muscularity, and body dissatisfaction among 1125 Korean college students (56% male) using structural equation modeling. The results indicate that, after controlling for body mass index and exercise, medi
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Ordaz, D. Luis, Lauren M. Schaefer, Emily Choquette, Jordan Schueler, Lisa Wallace, and J. Kevin Thompson. "Thinness pressures in ethnically diverse college women in the United States." Body Image 24 (March 2018): 1–4. http://dx.doi.org/10.1016/j.bodyim.2017.11.004.

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Ross, Carl T. F., K. O. Okoto, and Andrew P. F. Little. "Buckling by General Instability of Cylindrical Components of Deep Sea Submersibles." Applied Mechanics and Materials 13-14 (July 2008): 289–96. http://dx.doi.org/10.4028/www.scientific.net/amm.13-14.289.

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This paper reports on theoretical and experimental investigations into the buckling characteristics of a series of six ring-stiffened circular cylinders that experienced general instability when subjected to external hydrostatic pressure. Each study used between 3-5 designs with the same internal and external diameters, but with different numbers and sizes of ring-stiffeners. Four used designs that were machined to a high degree of precision from steel, while the other two were machined from aluminium alloy. The theoretical investigations focused on obtaining critical buckling pressure values,
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Zucker, Alyssa N., Zaje A. Harrell, Kathi Miner-Rubino, Abigail J. Stewart, Cynthia S. Pomerleau, and Carol J. Boyd. "Smoking in College Women: The Role of Thinness Pressures, Media Exposure, and Critical Consciousness." Psychology of Women Quarterly 25, no. 3 (2001): 233–41. http://dx.doi.org/10.1111/1471-6402.00024.

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Bulik, Cynthia M., and Federica Tozzi. "Genetics in Eating Disorders: State of the Science." CNS Spectrums 9, no. 7 (2004): 511–15. http://dx.doi.org/10.1017/s1092852900009597.

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AbstractEating disorders have been viewed as psychiatric illnesses that are strongly influenced by societal pressures towards thinness and attractiveness. Although the environmental context of these disorders must not be neglected, recent research in the area of genetic epidemiology suggests a substantial influence of genetic factors on liability to eating disorders. This review presents a synthesis of current knowledge about genetic factors implicated in the etiology of eating disorders.
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Choate, Laura Hensley. "Counseling Adolescent Girls for Body Image Resilience: Strategies for School Counselors." Professional School Counseling 10, no. 3 (2007): 2156759X0701000. http://dx.doi.org/10.1177/2156759x0701000314.

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Because body image dissatisfaction is such a pervasive problem in adolescent girls, school counselors need to develop effective prevention programs in this area. In this article, a model to promote girls' body image resilience is presented. The model identifies five protective factors that contribute to girls' abilities to resist sociocultural pressures regarding thinness. Specific prevention and counseling strategies that school counselors can use to promote positive body image in adolescent girls are provided.
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Tylka, Tracy L., Hannah L. Russell, and Ashley A. Neal. "Self-compassion as a moderator of thinness-related pressures' associations with thin-ideal internalization and disordered eating." Eating Behaviors 17 (April 2015): 23–26. http://dx.doi.org/10.1016/j.eatbeh.2014.12.009.

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Hsu, Jane Lu, Rainbow Tsai-Ling Hung, and Melchior Antoine. "Investigating the Linkages between BMI, Body Image, and SATAQ among Young Asian Females." International Journal of Environmental Research and Public Health 18, no. 14 (2021): 7460. http://dx.doi.org/10.3390/ijerph18147460.

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Sociocultural attitudes toward appearance and its linkage to body mass index (BMI) and body image is a relationship worth studying, especially in Asia, where the idealization of thinness can be prominent. The Sociocultural Attitudes Toward Appearance Questionnaire (SATAQ) developed by Heinberg et al. in 1995 was used in this study to examine whether these beliefs have been internalized. Furthermore, the Body Esteem Scale (BES) was used to quantify body image. The formal in-person survey was administered in Taipei, Taiwan. There were 301 valid samples out of 330 surveyed respondents. To enhance
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West, John B. "Comparative physiology of the pulmonary blood-gas barrier: the unique avian solution." American Journal of Physiology-Regulatory, Integrative and Comparative Physiology 297, no. 6 (2009): R1625—R1634. http://dx.doi.org/10.1152/ajpregu.00459.2009.

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Two opposing selective pressures have shaped the evolution of the structure of the blood-gas barrier in air breathing vertebrates. The first pressure, which has been recognized for 100 years, is to facilitate diffusive gas exchange. This requires the barrier to be extremely thin and have a large area. The second pressure, which has only recently been appreciated, is to maintain the mechanical integrity of the barrier in the face of its extreme thinness. The most important tensile stress comes from the pressure within the pulmonary capillaries, which results in a hoop stress. The strength of th
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Dissertations / Theses on the topic "Pressures for thinness"

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Fung, Sze-wan Samantha, and 馮詩韻. "Sociocultural pressures for thinness, body dissatisfaction, and depressive symptoms in Hong Kong Chinese adolescents." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2010. http://hub.hku.hk/bib/B44544613.

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Hage, Rita. "The Relationship of Societal Pressures and Disordered Eating Among Lebanese Women." Antioch University / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=antioch1588508085247119.

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Mallin, Jill M. "Social Pressures and Body Image as Contributors to Eating Habits among Collegiate Women Athletes." University of Akron / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=akron1181163254.

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Wilcox, Jennifer Alice. "Toward an understanding of resilience: the relation between sociocultural pressures for thinness and eating disorder symptomatology-an analysis of potential moderating variables." The Ohio State University, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=osu1302191169.

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Chardi, Emma, and My Nilsson. "Sociala mediers inverkan på ungdomars självbild : En litteraturöversikt." Thesis, Högskolan i Skövde, Institutionen för hälsa och lärande, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-12560.

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Introduktion Majoriteten av alla ungdomar använder sociala medier för att kommunicera med sina vänner genom bilder, chatt och forum eller för informationsinhämtning. På dessa mötesplatser finns reklam och innehåll som är könsstereotypa. Många ungdomar känner press att leva upp till stereotyperna vilket gör att man lägger upp förskönande bilder för att efterlikna idealen. Syftet med denna litteraturöversikt var att beskriva hur självbilden hos ungdomar i åldrarna 13-25 kan påverkas av innehållet i sociala medier. Metod Vetenskapliga artiklar hittades i databaserna CINAHL och PubMed. Genom en li
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Mizevich, Jane. "Resilient Women: Resisting the Pressure to Be Thin." Thesis, 2012. http://hdl.handle.net/1807/34813.

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The purpose of this study was to explore protective factors that help women resist societal pressures for thinness. The present study used a qualitative life history methodology to examine the experiences of women who identified themselves as resilient to pressures to be thin and as liking their bodies regardless of size. In-depth semi-structured interviews were conducted with 14 women, ages 18 to 25, representing diverse social and ethno-cultural backgrounds and body physiques. In the interviews, the participants were inquired about their experiences related to anything they felt was helpf
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Liu, Yu-Ting, and 劉宇婷. "Destruction of Photoresist Thinner Adsorbed on Active Carbon by Using Atmospheric-Pressure Microwave Plasma." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/62636733900973192832.

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碩士<br>國立高雄應用科技大學<br>化學工程與材料工程系<br>99<br>The destruction process of volatile organic compounds (VOCs) can be carried out by non-destructive methods, such as condensation, adsorption, and absorption, as well as by destructive techniques, such as thermal oxidation, catalytic incineration, and biological process. In this study, an absorption-plasma hybrid destruction process was proposed for destructing low flash points of PGMEA, PGME, and Anone that are commonly used in photoelectric industry. An atmospheric-pressure microwave plasma torch is used. The effects of the operating variables, includin
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He, Shih-Yung, and 何世榮. "The evaluation of the wave pressure reduction acting on the vertical coast by using a horizontal,fixed and thinned plate submerged in the water." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/36055740621236554034.

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Books on the topic "Pressures for thinness"

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Lavigne, M. B. A spacing trial in a precommercially thinned stand of black spruce at North Pond: Stemwood production during the first five years after thinning. Newfoundland Forestry Centre, 1987.

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Hughes, Nancy S. Thinner in An Instant: Great-Tasting Dinners with 350 CALORIES OR FEWER from Your Instant Pot® or Other Electric Pressure Cooker. Harvard Common Press, 2018.

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Thinner in an Instant Cookbook Revised and Expanded Edition: Great-Tasting Dinners with 350 Calories or Fewer from the Instant Pot or Other Electric Pressure Cooker. Harvard Common Press, 2019.

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Book chapters on the topic "Pressures for thinness"

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Lelwica, Michelle M. "Losing Their Way to Salvation." In Religion and Popular Culture in America, Third Edition. University of California Press, 2017. http://dx.doi.org/10.1525/california/9780520291447.003.0014.

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This chapter considers the ways in which religion can be a form of social control. In particular, it looks at the societal pressures which encourage women to embrace a so-called religion of thinness. This concept is not meant to suggest that the pursuit of slenderness is, in fact, a religion. Rather, it aims to illuminate how this pursuit has become a profound source of meaning for many people today—especially women. The idea of the religion of thinness brings into focus aspects of our culture's devotion to slenderness that functionally resemble certain features of traditional religion, especially Christianity, which has had the most power to influence Western norms and attitudes regarding appetite and body size.
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Brüne, Martin. "Feeding and eating disorders." In Textbook of Evolutionary Psychiatry and Psychosomatic Medicine. Oxford University Press, 2015. http://dx.doi.org/10.1093/med:psych/9780198717942.003.0015.

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Feeding and eating disorders comprise syndromes occurring in childhood or in people with intellectual disability, as well as the classic eating disorders, namely anorexia nervosa, bulimia, and binge-eating disorder. Individuals with anorexia nervosa are preoccupied with body weight and shape. They engage in diverse activities aimed to reduce body weight. People with bulimia have normal body weight, and have episodes of uncontrolled intake of food (binge eating). Both anorexia and bulimia are associated with the desire to gain control over pressures to fulfil sociobiological role models. Paradoxically, these disorders occur more often in societies where food is abundant. Eating disorders are much more prevalent in females than males. It is unclear whether amenorrhoea is key to the control of one’s reproductive potential, and whether this behaviour is maternally induced to promote ‘help at the nest’. Alternatively, thinness, as in anorexia, may be a by-product of intrasexual competition for mates.
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Kılıç, Bayram. "Plate Heat Exchangers: Artificial Neural Networks for Their Design." In Heat Transfer - Design, Experimentation and Applications [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.95376.

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Heat exchangers are installation components in which two fluids with different temperatures are separated from each other with the help of plates and these plates make heat transfer between two fluids. The biggest advantage of plate heat exchangers over other type of heat exchangers is their heat transfer efficiency. The thinness of the plates separating the two fluids compared to other material alternatives increases the amount of heat transfer and thus reduces the heat losses that may occur during heat transfer. Plate heat exchangers are not only efficient but also prevent the formation of residue and dirt that can accumulate over time in the used applications. It also protects the system against excessive pressure that may occur in the installation. In this study, some information about plate heat exchangers is given such as classification, plate geometry, pressure losses, and thermal calculations. Also, the data obtained from the experimental work were used to obtain some relativity in order to use it in plate heat exchangers and artificial neural networks (ANN) method was used for this purpose. Artificial neural network method is used in many engineering applications. The most important advantages of this method are rapid formation, simple formation and high learning capacity.
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Prusak, Bernard G. "Religious Non-Affiliation and Objections of Conscience." In Empty Churches. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780197529317.003.0010.

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This chapter is concerned with the implications of growing religious non-affiliation for objections of conscience, which have proliferated lately in the culture wars of Western democracies. Through the eighteenth century, when the U.S. Constitution was framed, the concept of conscience was tightly bound to religion. This chapter’s leading question is: what force do claims of conscientious objection have in the context of growing religious non-affiliation? Underlying this question is a subtler one: what else might we lose when we lose religion? The chapter’s thesis is twofold. First, the public conception of conscience has changed under the pressure of both growing religious non-affiliation and growing religious pluralism. Second, the appeal to conscience is now much less powerful than it was when God figured more prominently in the picture. The buffer between citizen and state has become thinner, and the reasons to accommodate objections of conscience have become weaker.
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Johnson, Thomas E., and Jennifer I. Hui. "Management of Orbital Cellulitis." In Surgery of the Eyelid, Lacrimal System, and Orbit. Oxford University Press, 2011. http://dx.doi.org/10.1093/oso/9780195340211.003.0028.

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Orbital cellulitis is an acute infectious inflammation of the post-septal orbital tissues. This chapter outlines the medical and surgical management of bacterial orbital cellulitis. The paranasal sinus complex is the most common source of orbital bacterial infection. Over 50% of orbital cellulitis cases result from secondary extension from the paranasal sinuses. Other causes of orbital cellulitis include spread from ocular and periocular infections such as dacryoadenitis, dacryocystitis, and panophthalmitis; trauma, insect bites, or surgery; or endogenous sources in immunocompromised or septic patients. Orbital cellulitis resulting from sinusitis is believed to start with viral or allergic inflammation of the upper respiratory system. The inflammation decreases mucociliary clearance and causes obstruction of the sinus ostia. The sinus mucosa absorbs air, thereby creating negative pressure within the sinuses. Transudation occurs, creating a nutrient medium for bacteria. Aerobic and facultative organisms proliferate, and inflammatory products accumulate resulting in decreasing oxygen tension and pH. As inflammatory products are produced, sinus pressure increases, causing mucosal blood flow to decrease. A proliferation of obligate anaerobes occurs as aerobic bacteria consume the remaining oxygen. Young children are less likely to develop anaerobic conditions within their sinuses because their ratio of ostia size to sinus volume is much larger than that of adults. The sinus cavities enlarge markedly with age while the ostia remain approximately the same size. Thus, as children become adults, the decreased ratio of ostia size to total sinus volume increases the propensity for anaerobic sinus infections. The bony walls shared by the orbit and sinuses account for approximately half of the orbital surface area. Bacteria and inflammatory products from the sinuses may extend directly into the orbit through the neurovascular foramina, congenital bony dehiscences, anastomosing valveless venous channels, or compromised bony walls in cases of osteitis and necrosis secondary to sinusitis. An abscess may form in the subperiosteal area, a relatively avascular potential space. Subperiosteal abscesses most often involve the medial orbital wall, as it is the thinnest wall and is adjacent to the ethmoid sinuses.
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Sobecki, Sebastian. "Afterword." In Last Words. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780198790778.003.0006.

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Perhaps one way of understanding the textual ‘I’ in late medieval narratives is to think of it as the pragmatic self of the author. Never quite divorced from the porous indexical self of the writer, the textual ‘I’ is the authentic guise sociocentric persons assume in public contexts. To some extent, the public selves we ourselves project are real and certainly reliable, yet they are rarely exact extensions of our private selves. But unlike medieval persons, we can actively construct and use our public selves as means through which we influence and control our environment. For the indexical self such an operation is fraught with danger. Their identity is not self-contained or even clearly separated from the environment: they are at the mercy of the spiritual and politicized forces exerting pressure on them. Such persons construct pragmatic selves much less consciously than we do, and their textual selves are closely tied to themselves, so closely, in fact, that they are exposed to their surroundings, just as their authors were. To effect change through the textual ‘I’ asked of the premodern writer to invest much of their personal reality in their textual reflection. The thinner the membrane separating the respective personae of Thomas, George, and Geoffrey from those of Hoccleve, Ashby, and Chaucer, the more propitious the likely public consequences of their creative efforts....
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Mudumbai, Raghu C. "Management of Glaucoma Following Intraocular Procedures." In Glaucoma. Oxford University Press, 2012. http://dx.doi.org/10.1093/oso/9780199757084.003.0013.

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The development of glaucoma can occur postoperatively from corneal/refractive, cataract, and vitreoretinal surgery. Additionally, glaucoma may be noted after clinical procedures have been performed, including injections and laser procedures. This chapter is organized into two basic sections: postoperative and post-procedure glaucoma. Background: Currently little is known about the effect of refractive surgery in glaucoma patients or about patients who undergo refractive procedures and may go on to develop glaucoma. •IOP measurement •Measurement of IOP after refractive surgery can be challenging. Corneal properties that are altered after refractive surgery include corneal thickness, corneal curvature, the structural integrity (stiffness or hysteresis), as well as the overlying tear film that interacts with instruments that measure IOP. Photorefractive keratectomy (PRK) additionally ablates portions of Bowman’s layer, which may change corneal resistance. Nomograms have been developed to adjust for IOP change after corneal alteration but usually take only corneak thickness into account, which has led to little success in their use. •Goldmann applanation tonometry (GAT) assumes corneal thickness = 520 microns. Thicker corneas will overestimate IOP and thinner corneas, which result from refractive procedures such as PRK and LASIK, will underestimate IOP. Therefore, GAT may have limited value in measuring true IOP following refractive surgery. Other tonometric devices, like Pascal dynamic contour tonometry, pneumatonometry, and the Reichert ocular response analyzer, may be more accurate. There does not appear to be any simple conversion table that can be referenced in correcting measured IOP after the cornea is altered surgically. Preoperative IOP is probably the most important variable that should be recorded. •The intraoperative pressure spike associated with LASIK may occur in select patients, leading to the development of glaucomatous optic neuropathy. • Pressure-induced stromal keratitis (PISK) is a condition related to steroid-induced elevated IOP that may occur after LASIK. The clinical appearance is similar to diffuse lamellar keratitis (DLK), where there is a diffuse interlamellar haze covering the flap. DLK is an inflamatory response where IOP is not elevated and requires topical steroid treatment for resolution.
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Lewis, Richard A. "Complications Specifically Related to Canaloplasty Surgery." In Complications of Glaucoma Surgery. Oxford University Press, 2013. http://dx.doi.org/10.1093/oso/9780195382365.003.0076.

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Canaloplasty is a surgical approach for patients with open-angle glaucoma. The objective of the procedure is to enhance circumferential outflow of aqueous from Schlemm’s canal to the collector system, improving outflow without creating a filtering bleb. In the procedure, a microcatheter is threaded into the canal using a standard nonpenetrating approach and then passed for 360 degrees. A polypropylene suture is attached to the catheter. The catheter is then retracted 360 degrees during which time viscodilation is performed. The suture remains in the canal, and the ends of the suture are tied together to place constant tension upon the trabecular meshwork (TM). Theoretically, the tension results in opening of the TM, improving outflow and lowering intraocular pressure (IOP). The procedure has increased in popularity and may be a valuable option for patients with open-angle glaucoma who might be at high risk for filtering surgery complications, such as contact lens wearers, patients on blood thinners, and those patients who already failed filtering surgery in the other eye. With the increased popularity of canaloplasty, knowing how to prevent and manage complications of this procedure are crucial skills for today’s glaucoma surgeon. The notion of enhancing circumferential outflow arose from studies of an earlier nonpenetrating procedure, viscocanalostomy (see Chapter 52). In this procedure, a Descemet’s membrane window is created under a scleral flap, and the outflow system is dilated with viscoelastic for 1–2 clock hours. However, in canaloplasty, 360-degree viscodilation is performed, and a tensioning suture is left in Schlemm’s canal to promote canal distension and aqueous outflow. Passing the microcatheter and completing a successful canaloplasty requires specific steps and careful attention to detail. The procedure may be performed under local, regional, or general anesthesia. Fixation of the globe is the first step, using either a corneal or rectus suture. Then, a half-thickness, 4 mm limbus-based scleral flap is created, followed by a deeper scleral flap, which unroofs the canal. The dissection is then taken forward onto Descemet’s membrane to allow for creation of a Descemet’s window, and the deep flap is excised. Schlemm’s canal is next catheterized 360 degrees.
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Trinkaus, Erik, Alexandra P. Buzhilova, Maria B. Mednikova, and Maria V. Dobrovolskaya. "The Pelves of Sunghir 1, 2, and 3." In The People of Sunghir. Oxford University Press, 2014. http://dx.doi.org/10.1093/oso/9780199381050.003.0017.

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The pelvis forms the interface between the trunk and the lower limb, as well as supporting the pelvic viscera, and as such its size and morphology reflect a diversity of biological pressures. Aspects of the Sunghir pelvic remains relating to the assessment of sex (pubic morphology, greater sciatic notch shape) and age (auricular surface, epiphyses) are presented in chapter 6, and the features of the sacrum (and coccyx) that are more strictly axial are discussed in chapter 10. The discussion here is concerned with the overall configurations of the Sunghir pelvic remains and more detailed aspects related to function. Given the male sex of Sunghir 1 and the prepubescent ages of Sunghir 2 and 3, reproductive issues beyond those related to sex assessment are not relevant to these remains. Unfortunately, the pelvis for which comparative data and biomechanical models of function exist, that of the adult male Sunghir 1, is the least complete, sufficiently so as to prevent the articulation of the elements. In contrast, the two immature pelves are quite complete, despite problems with reassembly given their immature status. Yet assessing their proportions is inhibited by issues of growth and development. The pelvis of Sunghir 1, as with most of its trunk (chapter 10), suffered extensively from vertical compres­sion in situ. The pubic bones are absent, and the ilia and ischia sustained considerable damage, much of which has been restored in wax. For example, the left acetabular rim is largely intact, but the lunate surface and acetabular notch are blended together with wax, obscuring details. The sacrum retains neither of its alae intact to the auricular surface. The Sunghir 2 and 3 pelves, in contrast, are largely present, with varying degrees of edge damage and loss of the thinner cortical bone, especially within the iliac fossae of Sunghir 3. However, both pelves retain their more cranial sacra, at least one intact sacroiliac articulation, and variable portions of the ischia and pubic bones. The primary difficulties in assessing the Sunghir 2 and 3 pelves derive from their immature status.
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Freedman, Jeffrey. "Encysted Bleb." In Complications of Glaucoma Surgery. Oxford University Press, 2013. http://dx.doi.org/10.1093/oso/9780195382365.003.0057.

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The formation of a true pathologic encysted bleb is characterized by intraocular pressure (IOP) elevation that generally starts around 6 weeks postoperatively. An encysted bleb has lost the ability to adequately reduce IOP in the presence of a patent tube, implying that aqueous permeability of the bleb wall has decreased (Figure 36.1). Physiologic encapsulation around the tube shunt plate differs from that of the pathologic encysted bleb. The normal postoperative encapsulation develops through several steps. Initially, edema and inflammation occur around the shunt’s plate during the first 7 days postoperatively. Next the edema subsides, and the bleb begins to become defined by a fibrous wall. The connective tissue forming this wall thickens over the next 3 weeks. During wall thickening the IOP may rise for about 4–6 weeks. This expected physiologic change is sometimes referred to as the hypertensive phase; however, not all patients will have elevated IOP. After 6 weeks the bleb typically becomes pale, thinner, and less congested, while the IOP stabilizes at a lower level over the next 6 months. Understanding why pathologic encysted blebs develop and how they are identified is important in prevention of their occurrence and in management once they do occur. Prostaglandin E2 (PGE2) and transforming growth factor-beta (TGF- β ) have been shown to be present in glaucomatous aqueous. These proinflammatory substances stimulate a tissue reaction culminating in the production of excessive amounts of collagen and other contractile proteins. Excessive collagen and proteins may result in a thick and relatively impermeable bleb wall. Various predisposing factors are suspected to potentially enhance this excessive fibrotic tissue reaction. Black patients have been identified as having a more rigorous tissue reaction to glaucoma surgical procedures and are therefore at a higher risk of developing encysted blebs. A history of keloid formation may indicate a greater tendency for a bleb to encyst due to an overly aggressive healing process. Pediatric patients are likely to have a stronger tissue response to surgery than older patients, most likely due to a stronger wound healing response.
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Conference papers on the topic "Pressures for thinness"

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Iyer, San. "Stress Classification and Assessment of Locally Thinned Class 1 Piping Components." In ASME/JSME 2004 Pressure Vessels and Piping Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/pvp2004-2250.

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Carbon steel piping components, such as elbows, and bends are extensively used in the primary heat transport systems of nuclear power plants. During the design stage, a corrosion allowance of 1/32” to 1/8” is normally assumed for wall thickness calculations. The corrosion is assumed to occur uniformly around the circumference of the piping component. The Class 1 piping components are designed to ASME Section III rules. Flow Accelerated Corrosion (FAC) affects ‘local’ areas creating ‘patches’ or ‘pits’ of thinned wall in critical piping components. If a single thickness value corresponding to t
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Reinhardt, Wolf, and Nima Zobeiry. "Implications of Limit Analysis on the Evaluation of Locally Thinned Vessels and Pipes." In ASME 2009 Pressure Vessels and Piping Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/pvp2009-77896.

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The evaluation of locally thinned vessels and pipes by Design-by-Analysis is currently not well defined in Section III. The present paper uses limit analysis results to study plastic failure mechanisms in a locally thinned cylinder. Parameters studied include the axial and circumferential extent of the thinned region, the amount of available reinforcement outside the thinned region and the circumferential distribution of thinning. On this basis, the amount of thinning justifiable within Section III margins for limit analysis is studied. Implications for Code primary stress limits are discussed
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3

Kim, Jin-Weon, Yeon-Soo Na, Sung-Ho Lee, and Chi-Yong Park. "Evaluation of Failure Pressure of Locally Wall-Thinned Elbow by Real-Scale Pipe Tests." In ASME 2007 Pressure Vessels and Piping Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/pvp2007-26445.

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This study performed a series of burst tests using real-scale pipe elbows containing simulated wall-thinning defect, to evaluate the effects of local wall-thinning on the failure pressure of pipe elbows. The tests were conducted under simple internal pressure at room temperature. In the tests, various wall-thinning geometries, such as thinning depth, length, and circumferential angle, and thinning locations, extrados and intrados, were considered. From the results of tests, the effects of thinning geometries and locations on the failure pressure of local wall-thinned elbows were investigated.
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4

Kim, Sun-Hye, Yoon-Suk Chang, and Young-Jin Kim. "FSI-Based Assessment of FAC-Caused Wall Thinned Piping." In ASME 2009 Pressure Vessels and Piping Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/pvp2009-77353.

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Lots of investigations on failures of wall thinned piping have been carried out since the accident of Surry unit 2 in USA. From these preceding efforts, flow accelerated corrosion (FAC) which is a kind of wall thinning phenomenon is revealed main factor of failure of pipes in nuclear power plants. However, there are a few researches which directly take into account of flow characteristics and geometric changes for stress assessment of FAC-caused wall thinned piping. In this paper, structural integrity assessment employing a fluid-structure interaction (FSI) analysis scheme is performed on pipe
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5

Tsuji, Masataka, and Toshiyuki Meshii. "Proposal of Limit Moment Equation Applicable to Planar/Non-Planar Flaw in Wall Thinned Pipes Under Bending." In ASME 2011 Pressure Vessels and Piping Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/pvp2011-57479.

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In this paper, limit bending moment equation applicable to all types of planar and non-planar flaw in wall thinned straight pipes under bending was proposed. An idea to rationally classify planar/non-planar flaw in wall thinned pipes was proposed, based on the experimental observation focused on the fracture mode. The results point out the importance to distinguish axially and circumferentially long flaws in wall thinned pipes.
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6

Shim, D. J., J. B. Choi, Y. J. Kim, J. W. Kim, and C. Y. Park. "Assessment of Local Wall Thinned Pipeline Under Combined Bending and Pressure." In ASME 2002 Pressure Vessels and Piping Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/pvp2002-1318.

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Failure of a pipeline due to local wall thinning is getting more attention in the nuclear power plant industry. Although guidelines such as ANSI/ASME B31G are still useful for assessing the integrity of a wall thinned pipeline, there are some limitations in these guidelines. For instance, these guidelines consider only pressure loading and thus neglect bending loading. However, most pipelines in nuclear power plants are subjected to internal pressure and bending moment due to dead-weight loads and seismic loads. Therefore, an assessment procedure for locally wall thinned pipeline subjected to
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7

Shiratori, Masaki, Yoji Ochi, Izumi Nakamura, and Akihito Otani. "Failure Analysis of Thinned Wall Elbows Under Excessive Seismic Loading." In ASME 2002 Pressure Vessels and Piping Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/pvp2002-1391.

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A series of finite element analyses has been carried out in order to investigate the failure behaviors of degraded bent pipes with local thinning against seismic loading. The sensitivity of such parameters as the residual thickness, locations and width of the local thinning to the failure modes such as ovaling and local buckling and to the low cycle fatigue damage has been studied. It has been found that this approach is useful to make a reasonable experimental plan, which has to be carried out under the condition of limited cost and limited period.
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Lee, Sang-Min, Yoon-Suk Chang, and Young-Jin Kim. "Probabilistic Fracture Mechanics Assessment of Wall-Thinned Nuclear Piping System." In ASME 2005 Pressure Vessels and Piping Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/pvp2005-71284.

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The integrity of nuclear piping systems must be maintained during operation. In order to maintain the integrity, reliable assessment procedures including fracture mechanics analysis, etc, are required. Up to now, the integrity assessment has been performed using conventional deterministic approaches even though there are many uncertainties to hinder a rational evaluation. In this respect, probabilistic approach is considered as an appropriate method for piping system evaluation. The objectives of this paper are to develop a probabilistic assessment program using reliability index and simulatio
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9

Haq, Irfan, Mike Stojakovic, and Sandy Fabbri. "Detailed Finite Element Analysis of Darlington NGS Feeder Pipes With Locally Thinned Regions Below Pressure Minimum Thickness." In ASME 2012 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/pvp2012-78800.

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Feeder Pipes in CANDU nuclear stations are experiencing wall thinning due to flow accelerated corrosion (FAC) resulting in locally thinned regions in addition to general thinning. In Darlington NGS these locally thinned regions can be below pressure based minimum thickness (tmin) in the straight pipe region (STR1) between Grayloc and Bend 1. The (tmin) is required as per ASME Code Section III NB-3600 Equation (1). A methodology is presented to qualify the locally thinned regions under NB-3200 (NB-3213 &amp; NB-3221) using internal pressure loading only. Detailed finite element models are used
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10

Nakamura, Izumi, Akihito Otani, and Masaki Shiratori. "Failure Behavior of Elbows With Local Wall Thinning Under Cyclic Load." In ASME/JSME 2004 Pressure Vessels and Piping Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/pvp2004-2950.

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Pressurized piping systems used in nuclear power plants are supposed to be degraded by the effects of aging. Local wall thinning is one of the defects considered to be caused in piping systems due to the effects of aging, but the failure behavior of thinned wall pipes under seismic load is still not clear. Therefore an experimental and analytical study to clarify the failure behavior of thinned wall pipes is being conducted. In this paper, the experimental results of locally thinned wall elbows under cyclic bending load are described. Displacement-controlled cyclic bending tests were conducted
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