472 research outputs found

    William Appleman Williams| Progressive, consensus, New Left historian

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    Post-Divorce Adjustment and Social Relationships

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    A meta-analysis was conducted on the role of social relationships in adults\u27 post-divorce adjustment. Twenty-one studies were coded and rich information was gained by comparing “specific relationships” (one-on-one contact with a specific person, such as a friend) with “network relationships” (being part of a group, such as a support group or church community), and by taking into account positive adjustment versus maladjustment, as well as other components of post-divorce adjustment (well-being, affect, psychopathology, and physiological symptoms). The findings indicated that social relationships during the post-divorce period are associated with higher levels of positive adjustment and lower levels of maladjustment. In particular, network relationshipsare important in promoting positive adjustment, while specific relationshipsare important for buffering against maladjustment. This has specific implications for therapists\u27 work with divorcing clients and for the conducting of future research

    A mixed methods study on the impact of the perceived aesthetics of a workplace

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    Interventions which change the visual appearance of the work environment to positively impact employee and organizational outcomes are becoming increasingly common. For example, environmental interventions such as adding indoor plants, changing the color of the walls, and increasing the amount of artwork within a workplace can lead to reduced stress levels, anxiety, fatigue, and sick leave (Dijsktra, Pieterse, & Pruyn, 2008a; Dijkstra, Pieterse & Pruyn, 2008b; Nejati, Rodiek, & Shepley, 2016). However, more research is needed to discover exactly why changing the appearance of work environments have a positive effect and what factors may influence the effectiveness of these interventions. There is theoretical and empirical support for the notion that the benefits of these interventions are in part due to the increased aesthetics of the environment. For example, Maslow (1954) wrote of a need for aesthetics, Kaplan & Kaplan (1989) argued that the aesthetic component of an environment can help individuals recover from mentally draining experiences, and Dijstrka, Pieterse, & Pruyn (2008) found that adding indoor plants to a room had positive psychological benefits due to the increase in the perceived attractiveness of the room. In this study, we seek to examine the impact that the perceived aesthetics of a workplace and the prevalence of aesthetic elements have on full time adult employees’ post work recovery needs, turnover intention, and job satisfaction. Additionally, we seek to examine if individual’s need for an aesthetically pleasing workplace and mindfulness levels moderate these relationships. Our ultimate goal with this work is to offer a model and methodological approach that can be useful to those interested in studying the impacts of the appearance of a workplace on employee job satisfaction, stress, and intention to stay at their job. A better understanding of this relationship will allow organizations to more effectively change the workplace to have greater positive impacts on employees’ health and happiness. This research comprises of two phases. First, participants complete a survey that measures relevant variables such as mindfulness levels, need for an aesthetically pleasing workplace, individual differences (e.g., personality), and asks them to identify any aesthetically pleasing visual elements that are present in their workplace (e.g., plants, artwork, colorful walls). If participants consent to continue to phase two, they will be asked to upload three photos of their workplace. These photos will be thematically coded to identify what elements are frequently present in environments that are rated as aesthetically pleasing

    Melanopsin-Containing ipRGCs Are Resistant to Excitotoxic Injury and Maintain Functional Non-Image Forming Behaviors After Insult in a Diurnal Rodent Model

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    Intrinsically photosensitive retinal ganglion cells (ipRGCs) are critical for the light signaling properties of non-image forming vision. Melanopsin-expressing ipRGCs project to retinorecipient brain regions involved in modulating circadian rhythms. Melanopsin has been shown to play an important role in how animals respond to light, including photoentrainment, masking (i.e., acute behavioral responses to light), and the pupillary light reflex (PLR). Importantly, ipRGCs are resistant to various forms of damage, including ocular hypertension, optic nerve crush, and excitotoxicity via N-methyl-D-aspartic acid (NMDA) administration. Although these cells are resistant to various forms of injury, the question still remains whether or not these cells remain functional following injury. Here we tested the hypothesis that ipRGCs would be resistant to excitotoxic damage in a diurnal rodent model, the Nile grass rat (Arvicanthis niloticus). In addition, we hypothesized that following insult, grass rats would maintain normal circadian entrainment and masking to light. In order to test these hypotheses, we injected NMDA intraocularly and examined its effect on the survivability of ipRGCs and RGCs, along with testing behavioral and functional consequences. Similar to findings in nocturnal rodents, ipRGCs were spared from significant damage but RGCs were not. Importantly, whereas image-forming vision was significantly impaired, non-image forming vision (i.e, photoentrainment, masking, and PLR) remained functional. The present study aims to characterize the resistance of ipRGCs to excitotoxicity in a diurnal rodent model

    The Effects of Ambient Temperature and Lighting Intensity on Wheel-running Behavior in a Diurnal Rodent, the Nile Grass Rat (Arvicanthis niloticus)

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    Environmental conditions, such as the light-dark cycle and temperature, affect the display of circadian rhythmicity and locomotor activity patterns in mammals. Here, we tested the hypothesis that manipulating these environmental conditions would affect wheel-running activity patterns in a diurnal rodent, the Nile grass rat (Arvicanthis niloticus). Grass rats are diurnal in the field, however, a subset switch from a day-active pattern to a night-active pattern of activity after the introduction of a running wheel. The mechanism of this chronotype switch remains largely unknown. In the present study, grass rats were presented with running wheels in 12:12 light-dark conditions. First, subjects were exposed to 25 °C during the day and 21 °C at night, which resulted in 100% of grass rats expressing diurnal behavior. Subjects were then exposed to manipulations of elevated ambient temperature, which resulted in a significant reduction in wheel-running activity. Reducing ambient temperature below 21 °C, however, did not disrupt the expression of diurnality or overall activity. Next, lighting intensity was reduced, which resulted in a switch from a diurnal to a nocturnal chronotype in a subset of animals and reduced overall wheel-running activity. Upon return to baseline lighting intensity, patterns of diurnal activity were restored. Altogether, increases in ambient temperature and decreases in lighting intensity significantly reduced overall wheel-running activity. Importantly, dim light resulted in a temporal niche switch in a subset of grass rats, suggesting a critical role for lighting intensity on the expression of wheel-running activity patterns

    A influĂȘncia do exercĂ­cio em esteira em joelhos de coelhos inflamados

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    Scoring system for renal pathology in Fabry disease: report of the International Study Group of Fabry Nephropathy (ISGFN)

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    Background. In Fabry nephropathy, alpha-galactosidase deficiency leads to accumulation of glycosphingolipids in all kidney cell types, proteinuria and progressive loss of kidney function. Methods. An international working group of nephrologists from 11 Fabry centres identified adult Fabry patients, and pathologists scored histologic changes on renal biopsies. A standardized scoring system was developed with a modified Delphi technique assessing 59 Fabry nephropathy cases. Each case was scored independently of clinical information by at least three pathologists with an average final score reported. Results. We assessed 35 males (mean age 36.4 years) and 24 females (43.9 years) who mostly had clinically mild Fabry nephropathy. The average serum creatinine was 1.3mg/dl (114.9 ÎŒmol/l); estimated glomerular filtration rate was 81.7 ml/min/1.73 m2 and urine protein to creatinine ratio was 1.08 g/g (122.0 mg/mmol). Males had greater podocyte vacuolization on light microscopy (mean score) and glycosphingolipid inclusions on semi-thin sections than females. Males also had significantly more proximal tubule, peritubular capillary and vascular intimal inclusions. Arteriolar hyalinosis was similar, but females had significantly more arterial hyalinosis. Chronic kidney disease stage correlated with arterial and glomerular sclerosis scores. Significant changes, including segmental and global sclerosis, and interstitial fibrosis were seen even in patients with stage 1-2 chronic kidney disease with minimal proteinuria. Conclusions. The development of a standardized scoring system of both disease-specific lesions, i.e. lipid deposition related, and general lesions of progression, i.e. fibrosis and sclerosis, showed a spectrum of histologic appearances even in early clinical stage of Fabry nephropathy. These findings support the role of kidney biopsy in the baseline evaluation of Fabry nephropathy, even with mild clinical disease. The scoring system will be useful for longitudinal assessment of prognosis and responses to therapy for Fabry nephropath
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