262 research outputs found
Gender Bias and Stereotypes in Dystopian Young Adult Literature
The research published on gender roles in young adult fiction is more limited than that of children's literature, but no less important to study for its potential impact on adolescence. Dystopian literature for young adults is growing increasingly popular. This study used content analysis to examine fifteen dystopian novels for young adults for the presence of gender bias and stereotypes based on sixteen predefined characteristics. Gender Schema Theory, the idea that children learn gender roles from society, is used as a basis for defining gender stereotypes. Results were coded to detect trends in gender stereotypes present in the sample. No gender bias was identified in the sample. Characters of both genders displayed traits against their stereotypical norm. An analysis of these observations will hopefully illuminate how gender roles are portrayed in dystopian fiction for young adults
Wiener algebra for the quaternions
We define and study the counterpart of the Wiener algebra in the quaternionic
setting, both for the discrete and continuous case. We prove a Wiener-L\'evy
type theorem and a factorization theorem. We give applications to Toeplitz and
Wiener-Hopf operators
How Do You Feel? Intentions to Use Embodied Interaction in Video-Based Psychotherapy
The use of video consultations to deliver healthcare has increased spectacularly since the onset of the Covid-19 pandemic, with applications in psychotherapy proving particularly useful. While generally perceived as an adequate substitute for face-to-face interactions, video consultations have proven to aggravate problems related to maintaining strong therapeutic relationships. We build on psychology and IS literature to present an embodied interaction system that can contribute to mitigating the derogatory effects that occur when the potential for nonverbal communication is reduced. Based on an analysis of behavioral intentions, we present initial empirical evidence that potential users are indeed willing to engage with embodied interaction systems in a clinical context. Our results also suggest that potential users expect the adoption of the system to be more arduous relative to traditional interaction systems. We derive implications for research and practice that can be used to improve interaction system designs and quality of care
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Do Slasher Films Breed Violence Against Women?
A topic of concern for feminists, film critics, media researchers, and film scholars
alike who believe in a causal connection between film violence and real life violence have
found an enemy in the slasher film. Critics of slasher films, a subgenre of horror, often
charge these films are uniquely violent toward women and feature violence juxtaposed with
sexual images. According to research, "non-pornographic" images of violence against
women, such as those found in slasher films, provoke negative responses that var from
"changes in rape related attitudes to instances of aggressive behavior" among men (Linz &
Donnerstein, 1986, p. 601). The purpose of this paper will be to explore the research that
supports a link between slasher film violence and violence towards women. The first chapter
of this paper will provide an introduction to the overall issue at hand, i.e. slasher film
violence including definitions and statistics. The second chapter will provide a selective
history of the slasher film. The third chapter will review the empirical research that shows a
casual connection between media violence and violence against women exists and also
theories explaining the effects of media violence on viewers. The four and final chapter
will provide a discussion and conclusion on the information included in the previous
chapters. It is the position of this paper that there is indeed cause for concern
Nontarget Effects of the Mosquito Adulticide Pyrethrin Applied Aerially During a West Nile Virus Outbreak in an Urban California Environment
In August 2006, a pyrethrin insecticide synergized with piperonyl butoxide (EverGreen Crop Protection EC 60-6, McLaughlin Gormley King Company, Golden Valley, MN) was sprayed in ultralow volumes over the city of Davis, CA, by the Sacramento-Yolo Mosquito and Vector Control District to control mosquitoes transmitting West Nile virus. Concurrently, we evaluated the impact of the insecticide on nontarget arthropods by 1) comparing mortality of treatment and control groups of sentinel arthropods, and 2) measuring the diversity and abundance of dead arthropods found on treatment and control tarps placed on the ground. We found no effect of spraying on nontarget sentinel species including dragonflies (Sympetrum corruptum), spiders (Argiope aurantia), butterflies (Colias eurytheme), and honeybees (Apis mellifera). In contrast, significantly higher diversity and numbers of nontarget arthropods were found on ground tarps placed in sprayed versus unsprayed areas. All of the dead nontarget species were small-bodied arthropods as opposed to the large-bodied sentinels that were not affected. The mortality of sentinel mosquitoes placed at the same sites as the nontarget sentinels and ground tarps ranged from 0% to 100%. Dead mosquitoes were not found on the ground tarps. We conclude that aerial spraying with pyrethrins had no impact on the large-bodied arthropods placed in the spray zone, but did have a measurable impact on a wide range of small-bodied organisms
Prevalence of Physical Activity in the United States: Behavioral Risk Factor Surveillance System, 2001
INTRODUCTION: The health benefits of regular cardiovascular exercise are well-known. Such exercise, however, has traditionally been defined as vigorous physical activity, such as jogging, swimming, or aerobic dance. Exercise of moderate intensity also promotes health, and many U.S. adults may be experiencing the health benefits of exercise through lifestyle activities of moderate intensity, such as yard work, housework, or walking for transportation. Until recently, public health surveillance systems have not included assessments of this type of physical activity, focusing on exercise of vigorous intensity. We used an enhanced surveillance tool to describe the prevalence and amount of both moderate-intensity and vigorous-intensity physical activity among U.S. adults. METHODS: We analyzed data from the 2001 Behavioral Risk Factor Surveillance System, a state-based, random-digit–dialed telephone survey administered to U.S. adults aged 18 years and older (n = 82,834 men and 120,286 women). Physical activity behavior was assessed using questions designed to quantify the frequency of participation in moderate- or vigorous-intensity physical activities performed during leisure time or for household chores and transportation. RESULTS: Overall, 45% of adults (48% of men and 43% of women) were active at recommended levels during nonworking hours (at least 30 minutes five or more days per week in moderate-intensity activities, equivalent to brisk walking, or at least 20 minutes three or more days per week in vigorous activities, equivalent to running, heavy yard work, or aerobic dance). Less than 16% of adults (15% of men and 17% of women) reported no moderate or vigorous activity in a usual week. CONCLUSION: Integrating surveillance of lifestyle activities into national systems is possible, and doing so may provide a more accurate representation of the prevalence of recommended levels of physical activity. These results, however, suggest that the majority of U.S. adults are not active at levels associated with the promotion and maintenance of health
Reemergence of Epidemic Vibrio cholerae O139, Bangladesh
During March and April 2002, a resurgence of Vibrio cholerae O139 occurred in Dhaka and adjoining areas of Bangladesh with an estimated 30,000 cases of cholera. Patients infected with O139 strains were much older than those infected with O1 strains (p<0.001). The reemerged O139 strains belong to a single ribotype corresponding to one of two ribotypes that caused the initial O139 outbreak in 1993. Unlike the strains of 1993, the recent strains are susceptible to trimethoprim, sulphamethoxazole, and streptomycin but resistant to nalidixic acid. The new O139 strains carry a copy of the Calcutta type CTXCalc prophage in addition to the CTXET prophage carried by the previous strains. Thus, the O139 strains continue to evolve, and the adult population continues to be more susceptible to O139 cholera, which suggests a lack of adequate immunity against this serogroup. These findings emphasize the need for continuous monitoring of the new epidemic strains
Hamiltonian purification
The problem of Hamiltonian purification introduced by Burgarth et al. [D. K.
Burgarth et al., Nat. Commun. 5, 5173 (2014)] is formalized and discussed.
Specifically, given a set of non-commuting Hamiltonians {h1, . . ., hm}
operating on a d-dimensional quantum system Hd, the problem consists in
identifying a set of commuting Hamiltonians {H1,...,Hm} operating on a larger
dE-dimensional system H_{dE} which embeds H_d as a proper subspace, such that
hj = PHjP with P being the projection which allows one to recover Hd from HdE .
The notions of spanning-set purification and generator purification of an
algebra are also introduced and optimal solutions for u(d) are provided.Comment: 13 pages, 3 figure
First record of Eufriesea laniventris (Ducke, 1902) (Hymenoptera, Apidae, Euglossini) in the state of Amazonas, Brazil
The first record of Eufriesea laniventris in the state of Amazonas is here reported. Attracted to 1.8 cineole and methyl salicylate fragrances, six specimens were colected in the region of Manaus (2º 36' S 60º 02' W) during the year 2000.", 'enÉ registrada pela primeira vez a ocorrência de Eufriesea laniventris no Amazonas. No ano 2000, foram coletados seis exemplares na região de Manaus (2º 36' S e 60º 02' W) atraídos pelas substâncias odoríferas 1,8 cineol e salicilato de metila
Cutaneous Head and Neck Squamous Cell Carcinoma with Regional Metastases: The Prognostic Importance of Soft Tissue Metastases and Extranodal Spread
Extranodal spread (ENS) is an established adverse prognostic factor in metastatic cutaneous squamous cell carcinoma (cSCC); however, the clinical significance of soft tissue metastases (STM) is unknown. The aim of this study was to evaluate the prognosis of patients with STM from head and neck cSCC, and to compare this with that of node metastases with and without ENS. Patients with cSCC metastatic to the parotid and/or neck treated by primary surgical resection between 1987 and 2007 were included. Metastatic nodes > 3 cm in size were an exclusion criterion. A Cox proportional hazard model was used to determine the effect of STM adjusting for other relevant prognostic factors. The population included 164 patients with a median follow-up of 26 months. There were 8 distant and 37 regional recurrences. There were 22 were cancer-specific deaths, and 29 patients died. STM was a significant predictor of reduced overall (hazard ratio 3.3; 95% confidence interval 1.6-6.4; P = 0.001) and disease-free survival (hazard ratio 2.4; 95% confidence interval 1.4-4.1; P = 0.001) when compared to patients with node disease with or without ENS. After adjusting for covariates, STM and number of involved nodes were significant independent predictors of overall and disease-free survival. In metastatic cSCC of the head and neck, the presence of STM is an independent predictor of reduced survival and is associated with a greater adverse effect than ENS alone
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