The broiler chicken as a signal of a human reconfigured biosphere

Author: Bennett, C. E., Thomas, R., Williams, M., Zalasiewicz, J., Edgeworth, M., Miller, H., Coles, B., Foster, A., Burton, E. J., & Marume, U. Description: Changing patterns of human resource use and food consumption have profoundly impacted the Earth’s biosphere. Until now, no individual taxa have been suggested as distinct and characteristic new morphospecies representing this change. Here we show that the domestic broiler chicken is one such potential marker. Human-directed changes in breeding, diet and farming practices demonstrate at least a doubling in body size from the late medieval…

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Termites mitigate the effects of drought in tropical rainforest

Author: Ashton, L. A., Griffiths, H. M., Parr, C. L., Evans, T. A., Didham, R. K., Hasan, F., Teh, Y. A., Tin, H. S., Vairappan, C. S., & Eggleton, P. Description: Termites perform key ecological functions in tropical ecosystems, are strongly affected by variation in rainfall, and respond negatively to habitat disturbance. However, it is not known how the projected increase in frequency and severity of droughts in tropical rainforests will alter termite communities and the maintenance of ecosystem processes. Using a large-scale termite suppression experiment, we found that termite…

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Association Between Generalized Anxiety Disorder Scores and Online Activity Among US Adults During the COVID-19 Pandemic: Cross-Sectional Analysis

Author: Singh, P., Cumberland, W. G., Ugarte, D., Bruckner, T.-A., & Young, S. D. Description: BACKGROUND: Evidence from past pandemics suggests that fear, uncertainty, and loss of control during large-scale public health crises may lead to increased pandemic-related information seeking, particularly among persons predisposed to high anxiety. In such groups, a greater consumption of information pertaining to the COVID-19 pandemic may increase anxiety. OBJECTIVE: In this study, we examine the association between online activity and Generalized Anxiety Disorder 7 (GAD-7) scores in the United States. METHODS: We recruited participants for…

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Psychological and pharmacological treatments for generalized anxiety disorder (GAD): a meta-analysis of randomized controlled trials

Author: Carl, E., Witcraft, S. M., Kauffman, B. Y., Gillespie, E. M., Becker, E. S., Cuijpers, P., Ameringen, M. V., Smits, J. A. J., & Powers, M. B. Description: The purpose of this meta-analysis was to provide updated pooled effect sizes of evidence-based psychotherapies and medications for generalized anxiety disorder (GAD) and to investigate potential moderators of outcomes. Seventy-nine randomized controlled trials (RCT) including 11,002 participants with a diagnosis of GAD were included in a meta-analysis that tested the efficacy of psychotherapies or medications for GAD. Psychotherapy showed a medium…

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The vermiform appendix impacts the risk of developing Parkinson’s disease

Author: Killinger, B. A., Madaj, Z., Sikora, J. W., Rey, N., Haas, A. J., Vepa, Y., Lindqvist, D., Chen, H., Thomas, P. M., Brundin, P., Brundin, L., & Labrie, V. Description: The pathogenesis of Parkinson’s disease (PD) involves the accumulation of aggregated a-synuclein, which has been suggested to begin in the gastrointestinal tract. Here, we determined the capacity of the appendix to modify PD risk and influence pathogenesis. In two independent epidemiological datasets, involving more than 1.6 million individuals and over 91 million person-years, we observed that removal of the…

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A dual-motive model of scapegoating: displacing blame to reduce guilt or increase control

Author: Rothschild, Z. K., Landau, M. J., Sullivan, D., & Keefer, L. A. Description: The authors present a model that specifies 2 psychological motives underlying scapegoating, defined as attributing inordinate blame for a negative outcome to a target individual or group, (a) maintaining perceived personal moral value by minimizing feelings of guilt over one’s responsibility for a negative outcome and (b) maintaining perceived personal control by obtaining a clear explanation for a negative outcome that otherwise seems inexplicable. Three studies supported hypotheses derived from this dual-motive model. Framing a negative…

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The forest and the trees: relational and specific factors in addiction treatment

Author: Miller, W. R., & Moyers, T. B. Description: AIMS: Increased expectations for the use of evidence-based methods in addiction treatment have fueled a debate regarding the relative importance of ‘specific’ versus ‘common’ factors in treatment outcome. This review explores the influence of these factors on addiction treatment outcome. METHODS: The authors review and link findings from four decades of research on specific and general factors in addiction treatment outcome research. FINDINGS: Although few would argue that what one does in addiction treatment is immaterial, outcome studies tend to find…

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Options for keeping the food system within environmental limits

Author: Springmann, M., Clark, M., Mason-D’Croz, D., Wiebe, K., Bodirsky, B. L., Lassaletta, L., de Vries, W., Vermeulen, S. J., Herrero, M., Carlson, K. M., Jonell, M., Troell, M., DeClerck, F., Gordon, L. J., Zurayk, R., Scarborough, P., Rayner, M., Loken, B., Fanzo, J., Godfray, H. C. J., Tilman, D., Rockström, J., & Willett, W. Description: The food system is a major driver of climate change, changes in land use, depletion of freshwater resources, and pollution of aquatic and terrestrial ecosystems through excessive nitrogen and phosphorus inputs. Here we show…

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Quantifying the influence of global warming on unprecedented extreme climate events

Author: Diffenbaugh, N. S., Singh, D., Mankin, J. S., Horton, D. E., Swain, D. L., Touma, D., Charland, A., Liu, Y., Haugen, M., Tsiang, M., & Rajaratnam, B. Description: Efforts to understand the influence of historical global warming on individual extreme climate events have increased over the past decade. However, despite substantial progress, events that are unprecedented in the local observational record remain a persistent challenge. Leveraging observations and a large climate model ensemble, we quantify uncertainty in the influence of global warming on the severity and probability of the…

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Undervaluing Gratitude: Expressers Misunderstand the Consequences of Showing Appreciation

Author: Kumar, A., & Epley, N. Description: Expressing gratitude improves well-being for both expressers and recipients, but we suggest that an egocentric bias may lead expressers to systematically undervalue its positive impact on recipients in a way that could keep people from expressing gratitude more often in everyday life. Participants in three experiments wrote gratitude letters and then predicted how surprised, happy, and awkward recipients would feel. Recipients then reported how receiving an expression of gratitude actually made them feel. Expressers significantly underestimated how surprised recipients would be about why…

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