29 research outputs found

    Gaze behaviour, body image in women and online apparel shopping

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    Online apparel shopping is popular among women, with possible negative body image consequences, particularly when the website imagery is body-focused. We investigated both correlational and experimental effects of online apparel shopping on women\u27s (N = 113) explicitly and implicitly measured self-worth, appearance attitudes and body gaze behaviour. Self-reported online apparel shopping behaviour positively correlated with self-objectification and a tendency to value and compare one\u27s appearance. Following a simulated online shopping activity, women who browsed a body-focused activewear website felt worse about their looks, when compared with women who browsed a non-body-focused casualwear website. The activewear condition also primed lower subsequent visual attention towards female bodies in a gaze task, when compared with the casualwear condition. Given that women tend to naturally gaze at faces, the deprivation of facial stimuli in the activewear condition presumably led to a compensatory gaze effect, whereby subsequent attention towards bodies was comparably low. Importantly, dollars spent in the activewear condition correlated positively with appearance comparison and body shame attitudes. These results suggest that online apparel imagery exposure may negatively impact women\u27s well-being. We also find evidence suggesting that gaze behaviour plays a role in how apparel marketing influences subsequent attention

    Accelerated partial breast irradiation using 3D conformal radiotherapy: Toxicity and cosmetic outcome

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    Purpose: The aim of this paper is to analyze the incidence of acute and late toxicity and cosmetic outcome in breast cancer patients submitted to breast conserving surgery and three-dimensional conformal radiotherapy (3D-CRT) to deliver accelerated partial breast irradiation (APBI). Methods and materials: 84 patients were treated with 3D-CRT for APBI. This technique was assessed in patients with low risk stage I breast cancer enrolled from September 2005 to July 2011. The prescribed dose was 34/38.5 Gy delivered in 10 fractions twice daily over 5 consecutive days. Four to five nocoplanar 6 MV beams were used. In all CT scans Gross Tumor Volume (GTV) was defined around the surgical clips. A 1.5 cm margin was added by defining a Clinical Target Volume (CTV). A margin of 1 cm was added to CTV to define the planning target volume (PTV). The doseevolume constraints were followed in accordance with the NSABP/RTOG protocol. Late toxicity was evaluated according to the RTOG grading schema. The cosmetic assessment was performed using the Harvard scale. Results: Median patient age was 66 years (range 51e87). Median follow-up was 36.5 months (range 13 e83). The overall incidence of acute skin toxicities was 46.4% for grade 1 and 1% for grade 2. The incidence of late toxicity was 16.7% for grade 1, 2.4% for grade 2 and 3.6% for grade 3. No grade 4 toxicity was observed. The most pronounced grade 2 late toxicity was telangiectasia, developed in three patients. Cosmetics results were excellent for 52%, good for 42%, fair for 5% and poor for 1% of the patients. There was no statistical correlation between toxicity rates and prescribed doses (p ¼ 0.33) or irradiated volume (p ¼ 0.45). Conclusions: APBI using 3D-CRT is technically feasible with very low acute and late toxicity. Long-term results are needed to assess its efficacy in reducing the incidence of breast relapse

    Trabajo, empleo, calificaciones profesionales, relaciones de trabajo e identidades laborales. Vol. I

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    CLACSO ha apoyado desde sus inicios la constitución y desarrollo de grupos de reflexión centrados en la problemática del mundo del trabajo. Los temas abordados sucesivamente han sido el empleo y el desempleo, los movimientos laborales, las relaciones de trabajo, las condiciones y medio ambiente de trabajo. Las reuniones y seminarios se han desarrollado en las principales ciudades del continente: México DF, La Habana, Medellín, Santiago de Chile, Río de Janeiro, San Pablo, Buenos Aires y Montevideo. Los objetivos son facilitar los encuentros, el debate y las acciones de cooperación entre los especialistas mas reconocidos y con los jóvenes investigadores, becarios, maestrandos y doctorandos y nutrir una comunidad muy diversa, y pluralista de científicos sociales que no han cesado de crecer. Los grupos han reunido a destacados especialistas de la casi totalidad de países de la región, con una composición multidisciplinaria y pluralista que abarca a sociólogos del trabajo y de la educación, cientistas políticos, economístas del trabajo y del desarrollo, abogados laboralistas y psicólogos del trabajo, entre otras. Sus estudios han dado lugar a numerosas publicaciones editadas por CLACSO, la UAM, el PREALC de la OIT, el CEIL PIETTE del CONICET y Trabajo y Sociedad de Argentina, y forman parte de las bibliografías de aquellas disciplinas. Desde 2007 se constituyó el actual grupo "Trabajo, empleo, calificaciones profesionales, relaciones de trabajo e identidades laborales" con sede en la UNAM, sede Iztapalapa y en el CEIL-PIETTE del CONICET. Los dos volúmenes que ofrecemos a la comunidad académica y a los actores sociales contienen la mayoría de las ponencias presentadas en el Seminario de Buenos Aires, realizado en noviembre de 2007.INDICE Presentación del Grupo de Trabajo: Trabajo, empleo, calificaciones profesionales, relaciones de trabajo e identidades laborales Julio César Neffa y Enrique de la Garza Toledo 11 Presentación de la obra: Nuevos y viejos escenarios en el mundo laboral latinoamericano: distintas miradas para su estudio Leticia Muñiz Terra 15 Primera parte Dimensiones teóricas y metodológicas Diez tesis sobre el trabajo del presente (y el futuro del trabajo) Ricardo Antunes 29 Aportes a una teoría del cambio: gubernamentalidad, fuerzas productivas y praxis de sujetos colectivos en nueva época Alberto L. Bialakowsky, María Ignacia Costa y M. Mercedes Patrouilleau 45 um ensaio sobre inércia social Adalberto Cardoso 83 Hacia un concepto ampliado de trabajo Enrique de la Garza Toledo 111 Comentarios: Del trabajo esclavo a las nuevas formas de esclavitud en el trabajo Irene Vasilachis de Gialdino 141 Segunda parte Trabajo, identidad y subjetividad Cuando el trabajo informal es espacio para la construcción de identificaciones colectivas. Un estudio sobre ferias comerciales urbanas Mariana Busso 159 Construcción del sujeto de trabajo en la condición de precariedad Karina Arellano, Diego Baccarelli, Cecilia Dallacia, Lucía De Gennaro, Soraya Giradles y Emilio Sadier 193 Comentarios: Comentarios críticos de las ponencias presentadas en la Mesa Trabajo, identidad y subjetividad Juan Montes Cató 203 Tercera parte Educación, calificación profesional, productividad y salarios Fuentes de la valorización del capital: la relación entre productividad y salarios. Argentina 1993-2006 Javier Lindenboim, Juan M. Graña y Damián Kennedy 215 Demandas empresariales en las estrategias de formación de los ingenieros en dos zonas argentinas Marta Panaia 243 Saberes, intervenciones profesionales y clasificaciones profesionales: nuevos requerimientos a idóneos, técnicos e ingenieros Julio Testa; Claudia Figari y Martín Spinosa 275 Pautas de desigualdad en el mundo social productivo uruguayo. Aportes para el debate en torno a la gestión por competencias Mariela Quiñones Montoro 309 Cuarta parte La nueva dinámica empresarial. Innovación y flexibilización en la industria Trabajo de organización y cadenas de valor. El caso de la vestimenta uruguaya Marcos Supervielle y Emiliano Rojido 337 Potencialidades y limitaciones de sectores dinámicos de alto valor agregado: la industria aeroespacial en México, Jorge Carrillo y Alfredo Hualde 373 La industria del salmón en Chile: ¿crecimiento social o explotación laboral?, Antonio Aravena 397 Rasgos posfordistas en el paisaje laboral de la gran industria del Valle del Cauca colombiano Carlos Mejía Sanabria 42

    Identification of good quality, viable seeds: An essential step towards induction of somatic embryogenesis of a sedge species important for land rehabilitation

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    Introduction: Sedges (Cyperaceae) are key species comprising a significant ground cover component of pre-mined ecosystems in the jarrah (Eucalyptus marginata) forests of Western Australia. Re•establishment of sedges into disturbed sites is often problematic because many are impossible to grow from cuttings Of divisions, and are extremely difficult to propagate from seed due to difficulty in collecting large numbers of seed, poor seed viability and complex dormancy mechanisms (Meney et al. 1990). Propagation by conventional techniques is often labour-intensive and time-consuming, hence the development of in vitro propagation methods including somatic embryogenesis (Panaia 2006). Initial efforts to extract seed embryos for somatic embryogenesis in several species have been thwarted by what appears to be erratic seed quality. We report here investigations undertaken on the sedge species Lepidosperma squama tum to develop a method to identify good quality, viable seed and determine to what extent somatic embryogenesis is dependent on seed quality

    Primary and repetitive secondary somatic embryogenesis of Lepidosperma drummondii (Cyperaceae) and Baloskion tetraphyllum (Restionaceae) for land restoration and horticulture

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    Somatic embryogenesis was developed as a method of mass propagation for Lepidosperma drummondii (Cyperaceae), a difficult to propagate but important species for post-mining restoration in a region of high plant biodiversity, in the southwest of Western Australia. Cultures were initiated from excised zygotic embryos, shoot cultures to rhizomes. Only zygotic embryos of L. drummondii developed somatic embryos, with half strength Murashige and Skoog basal medium (BM) and 1 mu M 2,4-dichlorophenoxyacetic acid (2,4-D) being the most effective combination. The first culture cycle yielded a mean of 30 somatic embryos per excised zygotic embryo forming an embryo cluster. After a further 6 wk in culture (on fresh BM with 1 mu M 2,4-D), approximately 350 somatic embryos per starting embryo cluster were recorded. Following regular sub-culturing of primary somatic embryo clusters onto fresh media (every 4 wk), more than 74,000 secondary somatic embryos were estimated to have been produced after eight subculture periods. This translates to between 1,000 and 2,000 somatic embryos produced from an estimated 45 mg of starting tissue per culture plate or potentially 22,0000-44,000 somatic embryos per gram of tissue. This is a significant improvement over all previous methods used to propagate L. drummondii, in which typical in vitro shoot multiplication rates are as low as 1.43 per 8 wk. This also compared favourably with published data and concurrent experiments undertaken in this study (as an extra control measure) on somatic embryo production for a related species Baloskion tetraphyllum (using the same BM with 1 mu M 2,4-D and coleoptile segments as explants). Various media combinations were investigated for efficacy in converting somatic embryos into plants with best results ranging from 86% to 100% conversion for B. tetraphyllum on BM without plant growth regulators. Development of L. drummondii somatic embryos into plants was not observed on BM without plant growth regulators. However, a best result of 39% conversion to plants was observed on BM with 1 mu M thidiazuron. This is the first report of successful development of somatic embryogenesis and conversion of somatic embryos into plants using thidiazuron for the Australian cyperale L. drummondii

    In vitro research with difficult to propagate Cyperaceae spp for ecological restoration of post-mined landscapes in a biodiverse region (south-west Western Australia)

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    Restoration of native vegetation in species rich regions such as Western Australia is often hampered by extreme difficulties in securing sufficient viable seed and dealing with various types of intractable dormancy. Similarly vegetative propagation can be very difficult or virtually impossible with some species and direct transplanting poses unacceptable risks with spread of serious soil-borne diseases (e.g. Phytophthora cinnamomi). Not surprisingly options for propagation and restoration of many species are very limited, hence aspirations for full restoration of original plant biodiversity after mining for example are often thwarted. We report on research undertaken at Kings Park and Botanic Garden into in vitro propagation (featuring somatic embryogenesis) as a valuable tool for mass propagation of highly recalcitrant native plants (with applications to threatened and horticultural taxa), illustrated by evidence for successful translocation of study species to restoration sites. Somatic embryogenesis has been highly successful with Baloskyon tetraphyllum (Restionaceae) and Lepidosperma drummondii (Cyperaceae) and significant progress achieved with micropropagation and somatic embryogenesis of L. squamatum, Tetraria octandra and T. capillaris (Cyperaceae). Whole plants of all four species have been successfully grown from in vitro cultured shoots derived from either shoot cultures and/or somatic embryos. Plants of L. drummondii, T. capillaris and T. octandra derived from somatic embryos have been successfully planted and have survived in field sites, indicating that mass propagation in vitro is a feasible alternative system for production of difficult-to-propagate Cyperaceae spp. for restoration in biodiverse ecosystems following mining activities

    The contribution of in vitro technology and cryogenic storage to conservation of indigenous plants (Review)

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    In vitro culture has enabled a variety of recalcitrant and threatened plant taxa to be micropropagated in the absence of viable conventional propagation methods. Cryogenic storage research has provided alternative protocols for efficient long-term germplasm storage for many plant species. Recent advances in tissue-culture methods such as somatic embryogenesis have enabled the production of >20 000 somatic embryos of a recalcitrant native Australian rush in a few months, far higher than other in vitro methods for these types of plants. Cryogenic protocols are reported for >30 species of Australian vascular plants, seed and numerous mycorrhizal fungi (mainly orchid spp.), greatly extending the range and type of material that can be stored through the application of cryogenic methods. The role of in vitro and cryogenic research initiatives in botanic gardens for plant biodiversity conservation and restoration is discussed, using examples of successful ex situ conservation through tissue-culture and cryogenic-storage research

    Incubation temperature critical to successful stimulation of in vitro zygotic embryo growth in four Australian native Cyperaceae species

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    Many species of Western Australian Cyperaceae (sedges) are vital components of the indigenous flora but commonly display low seed set, poor seed quality and intractable seed dormancy. We report the effects of incubation temperature and in vitro growth media on whole seed germination compared with extracted zygotic embryo growth in Tetraria capillaris, T. octandra, Lepidosperma drummondii and L. tenue. No germination was observed from intact whole seeds of all test species regardless of the treatment evaluated. In contrast, excised zygotic embryos of all study species exhibited significant increases in growth when cultured at 15°C compared to embryos incubated at 25°C; however, optimal media for embryo growth were genera specific. Extracted embryos of T. capillaris and T. octandra exhibited maximum percentage growth (30 and 40%, respectively) at 15°C on 1/2 MS medium with no plant growth regulators required. In the case of L. drummondii and L. tenue 1 μM thidiazuron was a necessary addition to the 1/2 MS medium resulting in 40 and 77% growth of embryos (at 15°C), respectively. Incubation of extracted embryos at 25°C (regardless of medium treatment) resulted in <10% embryo growth for T. octandra and L. tenue, while the remaining two species (L. drummondii, T. capillaris) showed no embryo growth at 25°C on any medium treatment
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