Search results for "STIGMA"

ChemInform Abstract: Two New Sesquiterpene Derivatives from the Tunisian Endemic Ferula tunetana Pom.

2010

A new sesquiterpene ester, tunetanin A (1), a new sesquiterpene coumarin, tunetacoumarin A (2), together with eight known compounds, i.e., coladin (3), coladonin (4), isosmarcandin (5), 13-hydroxyfeselol (6), umbelliprenin (7) propiophenone (8), beta-sitosterol (9), and stigmasterol (10), were isolated from the roots of Ferula tunetana. Their structures were elucidated on the basis of extensive spectroscopic methods, including 1D- and 2D-NMR experiments and MS analysis, as well as by comparison with published data. The cytotoxicity of compounds 1-7 towards two human colon cancer cell lines, HT-29 and HCT 116, was evaluated. Compounds 3, 4, and 6 showed weak cytotoxic activities.

The tangible common denominator of substance use disorders: a reply to commentaries to Rehm et al. (2013a)

2014

In response to our suggestion to define substance use disorders via ‘heavy use over time’, theoretical and conceptual issues, measurement problems and implications for stigma and clinical practice were raised. With respect to theoretical and conceptual issues, no other criterion has been shown, which would improve the definition. Moreover, heavy use over time is shown to be highly correlated with number of criteria in current DSM-5. Measurement of heavy use over time is simple and while there will be some underestimation or misrepresentation of actual levels in clinical practice, this is not different from the status quo and measurement of current criteria. As regards to stigma, research ha…

Era se una vez el género y el VIH

2002

El SIDA como cualquier enfermedad necesita no solo ser curada, necesita ser com¬prendida. Para poder entender cuales son los elementos que conforman una epidemia como el Sida, es importante identificar y analizar los aspectos más relevantes; uno de ellos es el género. El género se establece como generador de situaciones de vulnera¬ción de los derechos humanos, este hecho hace que se reproduzcan situaciones que pone a las personas en situaciones de riesgo para su vida, entre ellas el hecho de poderse infectar deVIH. El análisis desde perspectiva de género contribuye a identificar y a cambiar la mirada con la que nos acercamos al SIDA y a los hombres y a las mujeres que lo sufren.

From a Barrio Chino Urban Stigma to the Raval Cultural Brand: Urban Memory and Cultural Policies in the Renewal of Central Barcelona

2020

Barcelona, and especially, its historic center, has undergone a profound transformation from an industrial city to a global tourism and services center. Some authors insist on the destructive nature of the urban regeneration of the historic Barcelona district of Raval as a process of de-identification of the city center or as an intentional falsification of its identity to turn it into a tourist space. However, as we discuss in this article, urban branding and urban change projects should address not only the infrastructural issues of transformation, but also the development of new urban branding based on recreating a memory of the place. Thus, in the case of Raval, the urban and cultural …

Peer support in an outpatient clinic for people living with human immunodeficiency virus: a qualitative study of service users’ experiences

2022

Abstract Background Although human immunodeficiency virus (HIV) has become a manageable condition with increasing life expectancy, people living with HIV (PLHIV) are still often isolated from society due to stigma and discrimination. Peer support provides one avenue for increased social support. Given the limited research on peer support from the perspective of PLHIV, this study explored their experiences of peer support organised by healthcare professionals in an outpatient clinical setting. Methods The study used a qualitative, descriptive research design for an in-depth understanding of peer support provided to PLHIV in the context of outpatient clinics. Healthcare professionals contribu…

Los excluidos, ciudadanos

1998

Influencia de los diferentes tipos de astigmatismo en la agudeza visual

2017

[EN] Purpose To investigate the change in visual acuity (VA) produced by different types of astigmatism (on the basis of the refractive power and position of the principal meridians) on normal accommodating eyes. Methods The lens induced method was employed to simulate a set of 28 astigmatic blur conditions on different healthy emmetropic eyes. Additionally, 24 values of spherical defocus were also simulated on the same eyes for comparison. VA was measured in each case and the results, expressed in logMAR units, were represented against of the modulus of the dioptric power vector (blur strength). Results LogMAR VA varies in a linear fashion with increasing astigmatic blur, being the slope o…

Visual acuity with computer simulated and lens-induced astigmatism

2014

[EN] The relationship between spherical and astigmatic refractive errors and their associated visual acuity is investigated in this work by means of two different approaches. In the first one, different refractive errors were induced in normal subjects by trial lenses. In the second one, defocused images were simulated numerically by the optical transfer function of a model eye and then judged by the same subjects. The amount of defocus (measured in terms of the modulus of the dioptric power vector) necessary to reduce the visual acuity to 0.1 logMAR and to 0.4 logMAR was computed with each method and then compared. We found that the visual system is clearly more tolerant to lens-induced de…

Objective and subjective evaluation of photic phenomena after monofocal and multifocal intraocular lens implantation11The authors have no commercial …

1999

Abstract Objective To objectively measure and compare halo, flicker, and glare disability in pseudophakic eyes with monofocal (MONO) and multifocal (MULTI) intraocular lenses (IOLs) with respect to the influence of corneal surface quality, astigmatism, and age. Design Prospective case series. Participants This clinical trial involved 28 eyes of 28 patients after small-incision cataract surgery with a MONO silicone IOL and 28 eyes of 28 patients with zonal-progressive silicone IOL. Intervention A computer program objectively determined halo, glare, and flicker. Corneal surface quality and astigmatism were measured using computerized videokeratography. Ray-tracing analysis was performed based…

Identification of bound alcohols in soil humic acids by gas chromatography-mass spectrometry

2000

International audience; Humic acids are complex, partly macromolecular, yellow-brownish substances occurring in soils, waters and sediments. In order to shed some light on their molecular structure, crop humic acids were cleaved by alkaline hydrolysis (KOH). The products were fractionated by thin layer chromatography to give mono-alcohols which were analysed as acetate derivatives by gas chromatography coupled to mass spectrometry. Linear alcohols, sterols, stanols and plant-derived triterpenoid alcohols were identified by co-injection of pure standards and by comparison with literature data. These findings imply that alcohols could have been incorporated into the humic matrix by esterifica…