1,204 research outputs found

    Hey y'all : the disappearing southerner

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    Federal Reserve District, 5th ; Population

    A new foundation : manufactured housing flourishes in South Carolina

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    Housing ; Federal Reserve District, 5th

    The Ethics of Troubled Images

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    This special issue of Cultural Studies Review brings together an interdisciplinary range of scholarship to investigate the ethical implications of troubled images

    Deterioration of various cartridge case compositions in selective environments.

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    Firearm and toolmark analysis has, as its primary function, to determine if a particular ammunition component was fired in, by, or from a particular firearm. Examiners in this discipline can be presented with components that have deteriorated over a period of time. This research sought to determine the likelihood of identification over time, the possibility of establishing a timeline based on different variables, and effectiveness of three restorative techniques, to aid examiners when dealing with corroded cartridge cases. This study includes several variables not tested in previous studies to add to the existing literature. Results indicate that the likelihood of identification is affected by time, firearm used, and cartridge case composition. Scanning electron microscope (SEM) data analysis suggests that a timeline may be possible, but a more extensive study is needed. In addition, the effectiveness of the three restorative techniques appear to be dependent on cartridge case composition, but statistical analysis indicates that Aqua Regia was the most effective reagent for steel cartridge cases

    Differentiated Spelling Instruction: A Theoretical Approach to Instruction

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    Research has been conducted to determine the best method of teaching spelling instruction. Several studies have concluded that differentiated spelling instruction is the best method to teach spelling. In this type of instruction, the teacher determines the students\u27 spelling level and then delivers spelling instruction based on their spelling level. To test this theory of instruction I conducted my own study using fourth grade students. I determined that differentiated instruction improves students\u27 spelling by providing instruction that is specific to students\u27 ability level and needs while offering high-quality instruction. I compared two groups of students in my study. With the intervention group I delivered standard spelling instruction as well as differentiated spelling instruction using Words Their Way, an instruction manual and guide. The other group, or control group, was given only the standard spelling instruction. I worked with the intervention group for a seven-week period. At the end of the seven weeks I delivered a post-assessment to determine if the differentiated spelling instruction increased the intervention group\u27s spelling level. The results showed that the intervention group advanced further in spelling levels than the control group

    Conservation Conundrum: At-risk Bumble Bees (Bombus spp.) Show Preference for Invasive Tufted Vetch (Vicia cracca) While Foraging in Protected Areas

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    In recent decades, some bumble bee species have declined, including in North America. Declines have been reported in species of bumble bees historically present in Ontario, including: yellow bumble bee (Bombus fervidus) (Fabricus, 1798), American bumble bee (Bombus pensylvanicus) (DeGeer, 1773), and yellow-banded bumble bee (Bombus terricola) (Kirby, 1837). Threats contributing to bumble bee population declines include: land-use changes, habitat loss, climate change, pathogen spillover, and pesticide use. A response to the need for action on pollinator preservation in North America has been to encourage ‘bee-friendly’ plantings. Previous studies show differences in common and at-risk bumble bee foraging; however, similar data are unavailable for Ontario. Our research question is whether there is a difference in co-occurring at-risk and common bumble bee (Bombus spp.) floral use (including nectar and pollen collection) in protected areas in southern Ontario. We hypothesize that common and at-risk species forage differently, predicting that at-risk species forage on a limited selection of host plants. We conducted a field survey of sites in southern Ontario, using observational methods to determine bumble bee foraging by species. The results of a redundancy analysis show a difference in foraging between common and at-risk bumblebee species. At-risk bumble bee species show a preference for foraging on invasive, naturalized Vicia cracca (tufted vetch). This finding raises the question of how to preserve or provide forage for at-risk bumble bees, when they show an association with an invasive species often subject to control in protected areas.York University Librarie

    Evaluation of Real-time Feedback to Train Caregivers to Conduct Early Intensive Behavioral Interventions

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    Mounting empirical support for early intensive behavioral intervention (EIBI) has increased demand for these types of treatments for children diagnosed with autism spectrum disorder (ASD). Many caregivers are now learning EIBI techniques and becoming active agents in their child’s ASD treatment. Behavioral skills training (BST) has been frequently used to teach individuals to perform a variety of skills correctly, including discrete-trial instruction (DTI; Lafasakis & Sturmey, 2007). In this study, caregivers were trained to conduct a DTI procedure. A single-component BST method (i.e., real-time feedback) was examined. A concurrent, multiple baseline across caregivers design was used to demonstrate experimental control. Results showed that a single-component BST was associated with short training time and few sessions to mastery. In addition, caregivers expressed high satisfaction with the real-time feedback training method

    Son of Saul and the ethics of representation: troubling the figure of the child

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    Taking László Nemes’ film Son of Saul (2015) as both an aesthetic intervention into the public remembering of the Holocaust and as a critical/creative essay on representations of the horrors of war and violence more generally, this paper considers its use of the image and idea of the dead child—the child victim—and its ability to move, to communicate, to galvanise action, to seemingly cut through the chaos of communication. A figure presented as tangible and mournable in a way that the many anonymous, barely-glimpsed and largely ignored dead of the film are not, we consider it in relation to previous representations of the child in Holocaust film, but also, importantly, in relation to contemporary photographic examples of the child victim-as-icon, whose images seemingly require no caption to communicate and which inspire deeply-felt responses across cultures, organising structures of public feeling. As Nemes’ film makes clear, the claim of the child victim on the witness is profound, immediate, and potentially transformative. We will consider how the image of the child operates as a fluid signifier of both hope and despair, shared desires and fears, a not-unproblematic image through which the obscene and the unthinkable are mediated and made visible

    Increased Perchlorate in the Environment Following the 1600 C.E. Huaynaputina Volcanic Eruption

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    Perchlorate is an environmental contaminant that can have adverse health effects on humans. Although our knowledge about how natural perchlorate is formed is very limited, volcanic eruptions are believed to play an important role. An ice core obtained from Summit Station, Greenland was used to study the effects of the Huaynaputina eruption on the amount of perchlorate in the environment. The section of ice core sampled was determined to span the years 1594 through 1610. The results indicate that the Huaynaputina eruption caused a temporary but significant increase in the amount of perchlorate in the atmosphere
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