2,357 research outputs found

    Cyber bullying in Higher Education: Implications and Solutions

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    Cyberbullying exists in all levels of education, from kindergarten to postsecondary. Few studies have been conducted to examine the impact of cyberbullying in higher education. Minor, Smith, and Brashen (2013) identified the need for colleges and universities to set policies and standards on how to handle faculty being cyberbullying by students. Their study revealed that the majority of respondents were unaware of a policy in existence and/or the proper steps to take when bullying occurs. Six steps have been designed to assist college administrators when creating an antibullying policy and setting standards

    The effect of limited cognitive resources on communication disturbances in serious mental illness

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    Semantically incoherent speech is a pernicious clinical feature of serious mental illness (SMI). The precise mechanisms underlying this deficit remain unclear. Prior studies have found that arousal of negative emotion exaggerates the severity of these communication disturbances; this has been coined "affective reactivity". Recent research suggests that "cognitive reactivity" may also occur, namely reflecting reduced "on-line" cognitive resources in SMI. We tested the hypothesis that communication disturbances manifest as a function of limited cognitive resources in SMI above and beyond that associated with state affectivity. We also investigated individual differences in symptoms, cognitive ability, and trait affect that may be related to cognitive reactivity. We compared individuals with SMI (n=52) to nonpsychiatric controls (n=27) on a behavioral-based coding of communication disturbances during separate baseline and experimentally-manipulated high cognitive-load dual tasks. Controlling for state affective reactivity, a significant interaction was observed such that communication disturbances decreased in the SMI group under high cognitive-load. Furthermore, a reduction in communication disturbances was related to lower trait and state positive affectivity in the SMI group. Contrary to our expectations, limited cognitive resources temporarily relieved language dysfunction. Implications, particularly with respect to interventions, are discussed

    Mild recessive epidermolytic hyperkeratosis associated with a novel keratin 10 donor splice-site mutation in a family of Norfolk terrier dogs

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    Background  Epidermolytic hyperkeratosis in humans is caused by dominant-negative mutations in suprabasal epidermal keratins 1 and 10. However, spontaneous keratin mutations have not been confirmed in a species other than human. Objectives  To describe an autosomal recessive, mild, nonpalmar/plantar epidermolytic ichthyosis segregating in an extended pedigree of Norfolk terrier dogs due to a splice-site mutation in the gene encoding keratin 10 (KRT10). Methods  Dogs were evaluated clinically, and skin samples were examined by light and electron microscopy. Genomic DNA samples and cDNA from skin RNA were sequenced and defined a mutation in KRT10. Consequences of the mutation were evaluated by assessing protein expression with immunohistochemistry and Western blotting and gene expression with real-time RT-PCR (reverse transcriptase-polymerase chain reaction). Results  Adult dogs with the disease had generalized, pigmented hyperkeratosis with epidermal fragility. Light microscopic examination defined epidermolysis with hyperkeratosis; ultrastructural changes included a decrease in tonofilaments and abnormal filament aggregation in upper spinous and granular layer keratinocytes. Affected dogs were homozygous for a single base GT→TT change in the consensus donor splice site of intron 5 in KRT10. Keratin 10 protein was not detected with immunoblotting in affected dogs. Heterozygous dogs were normal based on clinical and histological appearance and keratin 10 protein expression. The mutation caused activation of at least three cryptic or alternative splice sites. Use of the cryptic sites resulted in transcripts containing premature termination codons. One transcript could result in shortening of the proximal portion of the 2B domain before the stutter region. Quantitative real-time PCR indicated a significant decrease in KRT10 mRNA levels in affected dogs compared with wild-type dogs. Conclusions  This disease is the first confirmed spontaneous keratin mutation in a nonhuman species and is the first reported recessive form of epidermolytic hyperkeratosis.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/74670/1/j.1365-2133.2005.06735.x.pd

    Stress: The Insidious Leveler of good, Unsuspecting, Online Instructors of Higher Education

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    This study was undertaken to determine the effects of stress on faculty in higher education teaching online classes. Few studies have been conducted to examine the impact of stress on faculty in online higher education. An anonymous survey of faculty was conducted at an online institution of higher learning to determine how prevalent stress was in their jobs, how stress impacted performance and morale, and what the symptoms were. The findings showed 67.6% of the 100 participants who completed the survey identified either a very high or high level of stress. The biggest stressors included time constraints, technical issues, and large class sizes. The top symptoms identified included sleep disturbances, impatience, tense, tight muscles, irritability, and the feeling of being overwhelmed. Recommendations were made to alleviate stress including physical activity, constructive self-talk, relaxation exercises, meditation, networking, quick and effective coping skills, and techniques for saying “no.” A certain amount of stress is desirable, but when stress is not addressed, it can lead to burnout, poor performance, and low morale

    The Role of Landscape Connectivity in Assembling Exotic Plant Communities: A Network Analysis

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    Landscape fragmentation and exotic species invasions are two modern-day forces that have strong and largely irreversible effects on native diversity worldwide. The spatial arrangement of habitat fragments is critical in affecting movement of individuals through a landscape, but little is known about how invasive species respond to landscape configuration relative to native species. This information is crucial for managing the global threat of invasive species spread. Using network analysis and partial Mantel tests to control for covarying environmental conditions, we show that forest plant communities in a fragmented landscape have spatial structure that is best captured by a network representation of landscape connectivity. This spatial structure is less pronounced in invasive species and exotic species dispersed by animals. Our research suggests that invasive species can spread more easily in fragmented landscapes than native species, which may. make communities more homogeneous over time

    Reproductive strategies of Diaeretiella rapae (Hymenoptera: Aphidiinae) during fluctuating temperatures of spring season in New Zealand

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    Reproductive activities of naturally occurring population of Diaeretiella rapae (M’Intosh) (Hymenoptera: Aphidiinae) on Myzus persicae were studied during spring season in New Zealand. The cabbage seedlings were highly infested with the aphids (272+-25 individuals/plant) with about 30% on average parasitised by D. rapae. Rate of parasitism was positively correlated with the aphid density(R2-�0.64). Adult emergence from aphid mummies was 90%, with a higher frequency of females than males. Increase in female/male sex ratio was found between early and late spring (1.1 vs. 1.8). Mating in D. rapae occurred throughout the day. Nearly half of the mating pairs collected were male�-male pairs, which were especially prevalent during morning and evening while more male-�female mating pairs were found during midday. Male�-male mounting was probably because of low number of virgin females in morning and evening populations. About 80% females were mounted by smaller size males. Male�-male mounting is discussed in correlation with operational sex ratio of D. rapae population
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