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During the first half of the 20th century, several members of the Western surrealist movement traveled to Mexico with the intention of experiencing Mexican culture and gaining knowledge about the rituals and traditions of the Mexican indigenous population. They sought life experiences that could influence and confirm the surrealist’s ideological convictions. They wanted to internationalize their artistic movement by including successful Mexican artists. The ideology of Western surrealism connects ideas and practices from the human subconscious to situations of reality, where the subconscious is portrayed as a pure form of truth. The perception of reality positions it as the opposite of the dream. The dreamlike, irrational aspects depicted in the human subconscious become, according to logic, another version of reality and truth. The surrealist ideology identified with Sigmund Freud’s theory of psychoanalysis, which positions and portrays women in traditional gender roles in the history of arts, where femininity and the woman are seen as biased to male creativity. In works produced by male surrealists, there is an overrepresentation of sexualizing, idealizing and projecting erotic desires onto the female body.  This thesis aims to investigate how the artists Remedios Varo and Dorothea Tanning, who themselves identified with the surrealist movement, relate to the construction of femininity and the role of women within surrealism and society. The analysis is based on a selection of reproduced works by Remedios Varo and Dorothea Tanning where themes of marriage, motherhood and sexuality is explored. These three themes serve as points of reference for a feminist theoretical framework in a visual analysis. The results of the analysis serve as a starting point for a comparative analysis of the similarities and differences that arise between the visual languages of the artists from a transnational perspective. By examining the relationship between the Western surrealist movement and Mexico's art and cultural scene during the first half of the 20th century, the movement's social and political ideas are discussed in relation to Mexico's national and cultural traditions, with the intention of providing insight into the role of women in surrealism and society.  The result of the analysis indicates that Varo and Tanning oppose the idea of how surrealism portrayed femininity. Instead, they created an independent idea of femininity and identity in relation to surrealism's ideology of the subconscious, mystical, and dreamlike. This means that the representation of femininity in the works serves as a statement against surrealism's idea of the female artist, by emphasizing their artistic ideas and visual language. The analysis provides an understanding of how hybrid identities guide navigation in relation to multiple cultural identities, artistic practices, and challenge assumptions about nationality, gender roles, and artistic cultural belonging. From a theoretical perspective of transnational feminism, the results of the analysis are discussed in terms of how cultural hegemony and postcolonial factors affect cross-cultural artistic encounters and how the rolls of gender and female artists are shaped by patriarchal structures that transcend national borders.

The Society of Behavioral Medicine (SBM), an interdisciplinary professional organization focused on the science of health behavior joins the American Academy of Dermatology, the American Academy of Pediatrics, and a host of other national and international organizations in support of a total ban on indoor tanning for minors under the age of 18. According to the International Agency for Research on Cancer, artificial sources of ultraviolet radiation are in the highest category of carcinogens, joining tobacco and asbestos. Strong evidence links indoor tanning to increased risk for melanoma with repeated exposure during childhood being associated with the greatest increase in risk. Several countries and five US states have passed legislation banning indoor tanning in minors. We strongly encourage the remaining US states to do the same in an effort to protect children and prevent new cases of melanoma. SBM also strongly encourages research that explores the use of tanning beds in the home. Home-based indoor tanning has the potential to be especially dangerous given the complete absence of safety regulations. Children are currently protected from exposure to health-harming substances like tobacco and lead; thus, legislation protecting them from artificial sources of ultraviolet radiation is yet another important step forward in improving public health.

Importance: Indoor tanning is widespread among young adults in the United States despite evidence establishing it as a risk factor for skin cancer. The availability of tanning salons on or near college campuses has not been formally evaluated. Objective: To evaluate the availability of indoor tanning facilities on US college and university campuses (colleges) and in off-campus housing surrounding but not owned by the college. Design, Setting, and Participants: This observational study sampled the top 125 US colleges and universities listed in US News and World Report. Investigators searched websites of the colleges and nearby housing and contacted them by telephone inquiring about tanning services. Main Outcomes and Measures: Frequency of indoor tanning facilities on college campus and in off-campus housing facilities, as well as payment options for tanning. Results: Of the 125 colleges, 48.0% had indoor tanning facilities either on campus or in off-campus housing, and 14.4% of colleges allow campus cash cards to be used to pay for tanning. Indoor tanning was available on campus in 12.0% of colleges and in off-campus housing in 42.4% of colleges. Most off-campus housing facilities with indoor tanning (96%) provide it free to tenants. Midwestern colleges had the highest prevalence of indoor tanning on campus (26.9%), whereas Southern colleges had the highest prevalence of indoor tanning in off-campus housing facilities (67.7%). Presence of on-campus tanning facilities was significantly associated with enrollment (P=.01), region (P=.02), and presence of a school of public health (P=.01) but not private vs public status (P=.18) or presence of a tobacco policy (P=.16). Presence of tanning facilities in off-campus housing was significantly associated with region (P=.002) and private vs public status (P=.01) but not enrollment (P=.38), tobacco policy (P=.80), or presence of a school of public health (P=.69). Conclusions and Relevance: Reducing the availability of indoor tanning on and around college campuses is an important public health target.

Objective To evaluate the Structured Interview for Tanning Abuse and Dependence (SITAD). Design Longitudinal survey. Setting College campus. Participants A total of 296 adults. Main Outcome Measures The SITAD modified items from the Structured Clinical Interview for DSM-IV Axis I Disorders that focus on opiate abuse and dependence. Indoor tanning (IT) behavioral patterns and opiate-like reactions to tanning were measured, and IT behavior was measured 6 months later. Results Of 296 participants, 32 (10.8%) met the SITAD criteria for tanning abuse (maladaptive pattern of tanning as manifested by failure to fulfill role obligations, physically hazardous tanning, legal problems, or persistent social or interpersonal problems) and 16 (5.4%) for tanning dependence as defined by 3 or more of the following: loss of control, cut down, time, social problems, physical or psychological problems, tolerance, and withdrawal. The IT frequency in dependent tanners was more than 10 times the rate in participants who do not meet the SITAD criteria for tanning abuse or dependence. Tanning-dependent participants were more likely to report being regular tanners (75%; odds ratio, 7.0). Dependent tanners scored higher on the opiate-like reactions to tanning scale than did abuse tanners, who scored higher than those with no diagnosis. Conclusions The SITAD demonstrated some evidence of validity, with tanning-dependent participants reporting regular IT, higher IT frequency, and higher scores on an opiate-like reactions to tanning scale. A valid tanning dependence screening tool is essential for researchers and physicians as a tanning-dependent diagnosis may facilitate a better understanding of tanning motivations and aid in the development of efficacious intervention programs. Recent research has explored the idea that some patterns of tanning behavior may be dependent1- 7 by using a common alcohol screening questionnaire, the CAGE,8 or, alternatively, by adapting criteria for substance-related disorders from the Diagnostic and Statistical Manual of Mental Disorders (Fourth Edition, Text Revision) (DSM-IV-TR)9 modified to reflect UV light tanning (ie, sunbathing or indoor tanning [IT]).1,4,6,7Whereas data from the National Household Survey on Drug Abuse10 report prevalence rates for alcohol and any illicit drug combined as 2.6% to 9.3%, the modified CAGE and modified DSM report tanning dependence rates ranging from 12% to 55%.1,4,6,7,11Prevalence rates for dependence on alcohol and various drugs do differ. However, even in settings enriched for dependent behavior, such as bars,12 prevalence rates are not nearly as high as the tanning dependence rates reported. The high prevalence rates reported suggest that the current assessments tend to overidentify tanning dependence. Feldman and others suggest that the mechanism for tanning dependence is most likely the release of endogenous opioids when the skin is exposed to UV radiation (see Nolan and Feldman5 for a review). It is probable that exploring tanning behavior by following the approach used in the DSM-IV-TR to categorize opioid use behaviors will lead to improved accuracy in the categorization of tanning dependence. The Structured Interview for Tanning Abuse and Dependence (SITAD) is a tanning dependence assessment based on opioid use items adapted from the Structured Clinical Interview for DSM-IV Axis I Disorders (SCID).13 The use of modified opioid SCID items was chosen specifically for good content and face validity in the measure. The self-administered structured interview format was chosen because this format has been demonstrated to achieve valid psychiatric categorization for opioid dependence in a previous study.14 Evaluation of the SITAD involved exploring differences in variables (ie, IT frequency, IT behavioral patterns, and scores on a scale measuring opiate-like reactions to tanning) that would theoretically be expected to differ among individuals exhibiting tanning abuse, those with tanning dependence, and those who do not meet the SITAD criteria for tanning abuse or dependence. We also expect that use of the SITAD will result in lower prevalence rates for tanning dependence than have been reported in previous studies.1,6,7

<p>In this thesis, genetic methods for individual identification and sex determination of wolverines from non-invasive samples were developed and applied in genetic monitoring of Scandinavian wolverine populations. Paternity and mating system of wolverines were studied by combining genetic analysis with telemetry data. Moreover, the possibility to obtain DNA from claws left on tanned carnivore hides was investigated.</p><p>Non-invasive genetic sampling was effective in revealing important population parameters. For the subpopulation in southern Norway, a population size of approximately 90 individuals, an equal sex ratio and similar levels of genetic diversity as in the main Scandinavian population were revealed. Genetic erosion in this small population has likely been counteracted by immigration of individuals from the main population since its re-establishment around 1970.</p><p>During the 1990s, two areas in east-central Sweden were colonised by wolverines. In a survey comprising 400 non-invasive samples collected during five winters, a total of 22 wolverines were detected. Genetic data suggest that inbreeding has occurred in both areas and that the two populations were founded by as few as 2-4 individuals. These findings suggest that gene flow from the main population is crucial for their survival even in a short time perspective. The detection of occasional stray individuals from the main population shows that this is indeed feasible. </p><p>Paternity analysis of 145 wolverine offspring in northern Sweden and southern Norway confirmed a polygamous mating system in wolverines. Breeding pair formation was generally consistent with the territories held by males and females, i.e. breeding pairs had overlapping territories. In the majority of litters, siblings were assigned the same father, thus indicating that multiple paternity is rare. </p><p>Tanning is a common form of preservation of mammalian specimens that normally precludes genetic analysis. Nevertheless, I demonstrate the possibility to successfully extract and amplify DNA from claws left on tanned carnivore hides.</p>

In this thesis, genetic methods for individual identification and sex determination of wolverines from non-invasive samples were developed and applied in genetic monitoring of Scandinavian wolverine populations. Paternity and mating system of wolverines were studied by combining genetic analysis with telemetry data. Moreover, the possibility to obtain DNA from claws left on tanned carnivore hides was investigated. Non-invasive genetic sampling was effective in revealing important population parameters. For the subpopulation in southern Norway, a population size of approximately 90 individuals, an equal sex ratio and similar levels of genetic diversity as in the main Scandinavian population were revealed. Genetic erosion in this small population has likely been counteracted by immigration of individuals from the main population since its re-establishment around 1970. During the 1990s, two areas in east-central Sweden were colonised by wolverines. In a survey comprising 400 non-invasive samples collected during five winters, a total of 22 wolverines were detected. Genetic data suggest that inbreeding has occurred in both areas and that the two populations were founded by as few as 2-4 individuals. These findings suggest that gene flow from the main population is crucial for their survival even in a short time perspective. The detection of occasional stray individuals from the main population shows that this is indeed feasible. Paternity analysis of 145 wolverine offspring in northern Sweden and southern Norway confirmed a polygamous mating system in wolverines. Breeding pair formation was generally consistent with the territories held by males and females, i.e. breeding pairs had overlapping territories. In the majority of litters, siblings were assigned the same father, thus indicating that multiple paternity is rare. Tanning is a common form of preservation of mammalian specimens that normally precludes genetic analysis. Nevertheless, I demonstrate the possibility to successfully extract and amplify DNA from claws left on tanned carnivore hides.

Made available in DSpace on 2014-06-11T19:29:13Z (GMT). No. of bitstreams: 0 Previous issue date: 2008-02-22Bitstream added on 2014-06-13T18:58:46Z : No. of bitstreams: 1 pereira_els_me_ilha.pdf: 891055 bytes, checksum: 1f192c5619aab2493cb699997dee266a (MD5) / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / Os efluentes de curtume caracterizam-se por possuírem elevadas concentrações de compostos tóxicos, tais como: cromo, amônia, sulfatos e compostos orgânicos de baixa biodegradabilidade, por isso o tratamento desses efluentes é extremamente difícil. O presente trabalho tem como objetivo comparar a eficiência de tratamento de efluentes de curtume de duas linhas experimentais, em escala piloto, compostas por: reator UASB simplificado em forma de “Y” seguido de um Biofiltro Aerado Submerso (BF) e somente um BF, operadas simultaneamente, recebendo o mesmo efluente pré-tratado físico-quimicamente, por meio de um decantador de coluna e um floculador de manta de lodo. As linhas experimentais foram montadas junto à estação de tratamento de efluentes do curtume Fuga Couros Jales Ltda., na cidade de Jales-SP. O monitoramento das linhas de tratamento foi dividido em 4 etapas operacionais distintas: 1aetapa, a partida do sistema experimental, 2a etapa, adição do coagulante sulfato de alumino ferroso, 3a etapa, aumento da taxa de aeração nos BFs e 4a etapa, aumento do TDH nos reatores. Em cada etapa, foram analisados os seguintes parâmetros: alcalinidade total, acidez volátil, cromo total, DBObruta, DQObruta, fósforo total, nitrato e nitrito, nitrogênio total e amoniacal, oxigênio dissolvido, pH, sólidos, sulfato, sulfeto e temperatura. A eficiência média de remoção de DQO e DBO, na linha 1, foi de 66% e 73%, respectivamente. Na linha 2, a eficiência média de remoção de DQO foi de 47% e de DBO foi de 49%. A baixa eficiência de remoção de DQO, nas duas linhas, é devido as elevadas concentrações de sulfato afluentes ao tratamento biológico, resultando numa baixa relação DQO/SO4 2-, cerca de 1,2. Apesar da eficiência de remoção de DBO, na linha 1, estar próxima da porcentagem mínima estipulada na legislação estadual, cerca de 80%, o efluente das duas... / The tanning effluents are characterized for its have high concentrations of toxicity compounds, such as: chromium, ammonia, sulfates and organic compound of low biodegradability, the treatment for those effluents is extremely hard. The present work has as objective compared the tanning effluents treatment efficiency of two lines experimental devices on pilot scale, composed for: line 1 - simplified UASB reactor on “Y” form following the Submerged Aerated Biofilter (BF) and line 2, only the BF reactor were operated simultaneously, receiving the same effluent pre-treated by physic-chemical devices, through a column settler and a sludge blanket flocculator. The experimental devices were installed in the tanning effluents treatment plant of the Fuga Couros Jales Ltd., at the Jales-SP city of. The treatment lines was monitoring on four different operational steps: 1st.step, start-up of the experimental system, 2nd step, addition of the coagulant ferrous aluminum sulfate in the pre-treatment devices, 3rd step, increase of the aeration rate in BFs and 4th step, increase the reactors HDT. On each step, the following parameters were analyzed: total alkalinity, volatile acidity, total chrome, BOD, COD, total phosphorous, nitrate and nitrite, total nitrogen and ammonia, dissolved oxygen, pH, solids, sulfate, sulfide and temperature. The COD and BOD removal efficiency average, in the line 1, was 66% and 73%, respectively. In the line 2, the removal efficiency average of the COD was 47% and the BOD was 49%. This low removal efficiency of COD, at two lines, is due the high sulfate inlet concentrations to the biological treatment, that resulting in a low COD/SO4 2- rate, about 1.2. In spite of the removal BOD efficiency, at line 1, reach the minimum state legislation requisite, about 80%, the effluent of the two treatment lines doesn't attempt the effluents discharges patterns, established by the environmental legislation.

Content: Synchrotron small-angle X-ray scattering (SAXS) technique was applied to leather research to understand the changes in molecular-level collagen structure during tanning and denaturation (shrinkage), which can help reduce the environmental impact from the extensive chrome usage. Based on SAXS results from realtime denaturation experiments on leather samples, we established a mechanistic model of chrome tanning indicated by the structural changes of collagen. It suggests that only a low level of chromium species is effectively involved in the cross-linking with collagen, which highlights the overuse of chrome during conventional tanning processes. Any extra amount of chrome added, however, can support the stabilisation of collagen possibly via a non-covalent mechanism. Such mechanism points towards a more environment-friendly tanning method by using suitable supplementary reagents to benefit tanning effect non-covalently instead of chrome. By pre-treating with complexing agents such as sodium formate and disodium phthalate, as well as nanoclay (sodium montmorillonite), the uniformity through bovine hide collagen matrix were improved significantly. These pre-treatments effectively reduce the reactivity of chromium during its cross-linking reaction with collagen while retaining its bound water. However, collagen pre-treated with a covalent cross-linker (glutaraldehyde) results in a decrease in both chromium-collagen cross-linking and bound water while improving uniformity. These molecular-level insights can be developed into metrics to guide us towards a more sustainable future for the leather industry. The coating on collagen fibrils can provide a pseudo-stabilisation effect of increasing the heat resistance of collagen. A group of tanning experiments were also conducted in situ on the SAXS beamline to observe the different mechanisms of free-of-chrome alternative tannages as potential replacements. Overall, synchrotron SAXS provides valuable information about collagen structure changes that could lead to more efficient use of chrome (or other tanning agents) in the global leather tanning industry. Take-Away: 1. Kinetics of hydrothermal denaturation and collagen crosslinking mechanism proceed through different pathways 2. Alternative chemistries to enhance chrome uptake at low offers. 3. The role of collagen structure studies in understanding tanning mechanims

Content: With the development of China sports, researches related to sports leather should be paid attention because they usually required higher strength than commonly used leather. In this paper, we focus on the production of gymnastics leather. In gymnastics, the athlete's hand will have high intensity contact with the balance bar, so the gymnastics leather is required to have high intensity performance. At the same time, in order to comply with the ornamental function, gymnastics leather is required to be light color. In this research, glutaraldehyde was used as the main tanning agent, while acrylic polymer and synthetic were used for retanning, in order to obtain high strength, environmentally friendly white gym leather. The shrinkage temperature and mechanical properties of tanned leather were determined and analyzed to determine the suitable tanning agent. Besides, other properties including softness, gas permeability, water permeability, flexing resistance and yellowing-resistance were also measured for selecting proper production process. Therefore, gymnastics leather with ideal performance can be prepared by this method, and the leather conforms to the practical application standard. In addition, the research has guiding significance and application prospect for high strength chrome-free tanned leather. Take-Away: Aldehyde tanning agents and retanning agents, which can be used for gymnastics leather making, were evaluated and selected to achieve ideal effect of finish leather. This research is meaningful to produce not only gymnastics leather but also other sporty leather which require high strength.