Mcclanahanwilloughby0367

This radiation resulted not only in high species diversity, but also in the development of a diverse array of morphological traits and adaptation to different ecological niches. Pseudocorax kindlimanni sp. nov. was a small, active predator capable of fast swimming, and it occupied the lower trophic levels of the marine food web in the Late Cretaceous.At the onset of the novel coronavirus (COVID-19) pandemic, countries reported elevated rates of psychiatric symptoms. Previous research indicates that subclinical narcissism may reduce depression and stress through mental toughness. The researchers collected data from the United Kingdom (UK) and Greece (GR) on self-reported depression, anxiety, stress, COVID-19 related worry, subclinical narcissism, and mental toughness. Two samples, one cross-sectional (N = 1846) and one semi-longitudinal (N = 184), were used to compare rates of psychiatric symptoms pre and during COVID-19 across the UK and GR, and to test a path model in which subclinical narcissism reduced psychiatric symptoms through mental toughness. From pre to during COVID-19, UK participants exhibited increased depression, lower anxiety, and no change in stress, whereas GR participants showed a decrease in anxiety and stress and consistently low symptoms of depression. Subclinical narcissism exerted a negative indirect effect on psychiatric symptoms through mental toughness in both samples, but a negative total effect on anxiety and stress only in the UK sample. Findings indicate that exploring links between narcissism and prosocial traits can provide novel insights into differences in the adaptive use of personality traits in relation to mental health.During the COVID-19 pandemic, many individuals missed out on important life events, but it was also a chance for some to engage with new interests or values. This research examined how individuals higher in perfectionism experienced missed and gained events during the pandemic, and how their perceptions of these events influenced their mental health. University students (N = 350) were surveyed in September 2020, assessing perfectionism, depression, missed/gained events, and need satisfaction related to these events, and then followed up in December. A combined missed and gained event score was created to better understand overall need satisfaction from these changes. Individuals higher in self-critical perfectionism were more likely to experience need dissatisfaction overall and this partially explained why these individuals experienced more depressive symptoms over time during the pandemic. Conversely, those higher in personal standards perfectionism experienced more need satisfaction overall and this was related to reduced depressive symptoms. Results suggest that individuals higher in self-critical perfectionism were less flexible when things did not go according to their plan. This may be one reason these individuals had a more difficult time coping during the COVID-19 pandemic.Psychologists worldwide are becoming increasingly concerned about the negative impact of the novel coronavirus (COVID-19) pandemic on adolescents' mental health. However, compared to studies involving adults, research using a young population is limited. To further understand the mental health of older adolescents and young adults during the pandemic, the present study examined whether resilience, as a protective factor, buffers the relationship between the personality trait of environmental sensitivity and COVID-19-related distress. In total, 441 older adolescents and young adults (53.7% women, M age = 18.91 years, SD age = 0.82 years) living in urban Japan completed an online cross-sectional survey in October 2020. The results showed that sensitivity was positively, though weakly, correlated with COVID-19 stress and negatively correlated with resilience. Resilience was negatively correlated with COVID-19 stress. Mediation analysis showed that resilience buffered the negative relationship between sensitivity and COVID-19 stress, and its indirect effect was statistically significant, albeit close to zero. These results suggest that higher sensitivity is not necessarily a vulnerability factor, if resilience can be enhanced.Psychological reactions to pandemics and their constraints depend heavily on personality. Although perfectionism is consistently associated to depression, anxiety and stress, its role in the pandemics' psychological impact has not been yet empirically studied. Our aim was to analyze the role of perfectionism in psychological distress during the pandemic of COVID-19, testing whether it is mediated by fear of COVID-19 and repetitive negative thinking/RNT. Participants (N = 413 adults; 269.2% women) were recruited from September until December 2020, via social networks. They completed self-report validated questionnaires to evaluate perfectionism dimensions (self-critical, rigid and narcissistic perfectionism), fear of COVID-19, RNT and psychological distress (sum of anxiety, depression and stress symptoms). As women had significantly higher levels of self-critical perfectionism, RNT, fear of COVID-19 and psychological distress, gender was controlled in mediation analysis. The three perfectionism dimensions correlated with RNT, fear of COVID-19 and psychological distress. The effect of self-critical perfectionism on psychological distress was partially mediated by fear of COVID-19 and RNT whereas the effect of rigid and narcissistic perfectionism was fully mediated. Perfectionism influences emotional and cognitive responses to the COVID-19 and therefore should be considered both in the prevention and psychological consequences of the pandemic.Multivariate time-dependent data, where multiple features are observed over time for a set of individuals, are increasingly widespread in many application domains. To model these data, we need to account for relations among both time instants and variables and, at the same time, for subject heterogeneity. We propose a new co-clustering methodology for grouping individuals and variables simultaneously, designed to handle both functional and longitudinal data. Our approach borrows some concepts from the curve registration framework by embedding the shape invariant model in the latent block model, estimated via a suitable modification of the SEM-Gibbs algorithm. The resulting procedure allows for several user-defined specifications of the notion of cluster that can be chosen on substantive grounds and provides parsimonious summaries of complex time-dependent data by partitioning data matrices into homogeneous blocks. Along with the explicit modelling of time evolution, these aspects allow for an easy interpretation of the clusters, from which also low-dimensional settings may benefit.Since Kepler, Newton and Huygens in the seventeenth century, geodesy has been concerned with determining the figure, orientation and gravitational field of the Earth. With the beginning of the space age in 1957, a new branch of geodesy was created, satellite geodesy. Only with satellites did geodesy become truly global. Oceans were no longer obstacles and the Earth as a whole could be observed and measured in consistent series of measurements. Of particular interest is the determination of the spatial structures and finally the temporal changes of the Earth's gravitational field. The knowledge of the gravitational field represents the natural bridge to the study of the physics of the Earth's interior, the circulation of our oceans and, more recently, the climate. Today, key findings on climate change are derived from the temporal changes in the gravitational field on ice mass loss in Greenland and Antarctica, sea level rise and generally on changes in the global water cycle. This has only become possible with, and the plans for a next generation of gravity field missions are also discussed.In this paper, a model of mumps transmission with quarantine measure is proposed and then the control reproduction number ℛ c of the model is obtained. This model admits a unique endemic equilibrium P* if and only if R c > 1, while the disease-free equilibrium P 0 always exists. By using the technique of constructing Lyapunov functions and the generalized Lyapunov-LaSalle theorem, we first show that the equilibrium P 0 is globally asymptotically stable (GAS) if R c ≤ 1; second, we prove that the equilibrium P* is GAS if R c > 1. Our results reveal that mumps can be eliminated from the community for ℛ c ≤ 1 and it will be persistent for ℛ c > 1 , and quarantine measure can also effectively control the mumps transmission.We present experimental evidence on how pro-sociality, trust and attitudes towards risk and ambiguity evolved over the six weeks following the imposition of stringent Covid-19 related lockdown measures in the Hubei province of China. We compare incentivized economic decision-making in a baseline sample, collected pre-epidemic, with a series of repeated cross-sectional samples drawn from the same population between January and March, 2020. We find high rates of altruism, cooperation and aversion to risk taking under ambiguity in the immediate aftermath of the lockdown, while trust is significantly below its baseline level. Risk attitudes also differ in the post-lockdown sample, with decreased risk tolerance in the loss domain and lesser risk aversion in the gain domain. We further uncover significant transitory effects for trust and risk aversion around the date of a high-profile whistleblower's death from Covid-19. Our findings suggest that the onset of a public health crisis may have unintended consequences for economic preferences that determine population compliance with interventions designed to reduce the spread of a novel coronavirus.The COVID-19 pandemic has induced a process of digital acceleration and has likely changed the attitudes of local public managers toward information and communication technology (ICT). While this attitude change has been reasonably argued, it has not been systematically measured. This study narrows this gap by measuring the attitudes of public managers before and after the outbreak of the COVID-19 pandemic. Overall, this study finds that the pandemic has led public managers to be more confident in the capacity of ICT to help cities achieve their economic, social, and environmental goals and respond to challenges. Both explicit and implicit measures confirmed attitude changes. The explicit measures also indicated that the change in public managers' attitude toward ICT was similar to their change in attitude toward scientific progress and greater than their change in attitude toward other issues that have played a major role during the pandemic, namely, climate change, citizen participation, and privacy.The wide deployment of digital technologies for the management of the COVID-19 pandemic has triggered concerns about privacy and intrusion from government surveillance. This study investigates individual privacy and surveillance attitudes by developing a theoretical model to explain acceptance of government surveillance and privacy protection behaviours during health-crises, such as the COVID-19 pandemic. Results from a US sample reveal that people are concerned about the collection and use of their personal information via mobile applications and the monitoring of their online activities by authorities. Findings reveal the important roles of political trust and belief that governments' need to be proactive in protecting peoples' welfare during a crisis that can increase acceptance of surveillance and thus assist in the management of the health crisis. Implications for research and practice are discussed.