The COVID-19 pandemic and associated measures to restrict the spread of the virus correlated with limitations in healthcare and changes in depression-related lifestyle elements for depressed patients, both of which are known to negatively affect the course of depression. This paper examines, the reporting of a worsening state of illness as a result of COVID-19-related measures among individuals with depressive disorders; and whether this worsening was related to restrictions in healthcare for depression or changes in depression-related lifestyle. The analysis (...) was based on a population-representative survey of the German population aged 18–69 years. The key findings were: 49% of respondents with self-reported diagnosed depression reported that the measures against the pandemic had a negative impact on their depressive illness. Of those who reported impaired access to healthcare for their depressive illness, 70% also reported a worsening of their depressive illness. This was a significantly higher percentage than those who did not experience impaired access to healthcare. Of those who reported changes in depression-related lifestyle, 58% reported a worsening of their depressive illness. This was a significantly higher percentage than those who did not exhibit any of the outlined behaviours. Worsening of the depressive illness was most common among those who reported a lack of daily structure or extended bedtimes. People who mentioned a lack of exercise also reported a worsening of their depressive illness. These findings reinforce the need to consider the suffering and possible increased suicide risk to people suffering from depression induced by measures designed to constrain the COVID-19 pandemic; an important consideration in identifying the optimal risk-benefit ratio when setting pandemic measures. Our study highlighted the importance of maintaining healthcare, even in crisis situations, and ensuring access to guideline-based treatment for people who need urgent care. It also showed that political interventions can influence individual behaviours that can have negative effects on depressive illness. (shrink)

A modified version of the SEIR model with the effects of vaccination and inter-state movement is proposed to simulate the spread of COVID-19 in Malaysia. A mathematical analysis of the proposed model was performed to derive the basic reproduction number. To enhance the model’s forecasting capabilities, the model parameters were estimated using the Nelder–Mead simplex method by fitting the model outputs to the observed data. Our results showed a good fit between the model outputs and available data, where the (...) model was then able to perform short-term predictions. In line with the rapid vaccination program, our model predicted that the COVID-19 cases in the country would decrease by the end of August. Furthermore, our findings indicated that relaxing travel restrictions from a highly vaccinated region to a low vaccinated region would result in an epidemic outbreak. (shrink)

Attempts to influence people’s beliefs through misinformation have a long history. In the age of social media, however, there is a growing fear that the circulation of false or misleading claims will be more impactful than ever now that sophisticated technological means are available to those who desire to spread them. Should democratic societies worry about misinformation? If so, is it possible and desirable for them to control its spread by regulating it? This chapter offers an answer to (...) these questions. First, I propose a definition of misinformation and explain how it proliferates in online contexts. Second, I consider four reasons to worry about misinformation by discussing its likely impact on people’s political opinions, emotions, physical safety and personal autonomy. Third, I assess three strategies for regulating misinformation—individual self-regulation, platform-based innovations and governmental action—and suggest that the most effective ones are those that spare human agents from having to successively review individual pieces of content. (shrink)

Coronavirus disease cases and COVID-19-related deaths have been increasing worldwide since the outbreak in 2019. Before the mass vaccination campaign for COVID-19, the main methods for COVID-19 control in China were mass testing and quarantine. Based on the transmission mechanism of COVID-19, we constructed a dynamic model for COVID-19 transmission in two typical regions: Beijing and Xinjiang. We calculated the basic reproduction number R 0, proved the global stability of COVID-19 transmission via the Lyapunov function technique, and introduced the final (...) size. We assessed the effectiveness of mass testing and quarantine. Sensitivity analysis indicated that the more the people were tested per day, the larger is the quarantine proportionality coefficient, the earlier the source location was determined, and the better is the controlling effect. In addition, it was more effective to increase the coefficient of quarantine if the population density in the region was low. To eliminate the pandemic, the government has to expand testing and quarantine, requiring a large amount of continuous manpower, material, and financial resources. Therefore, new control measures should be developed. (shrink)

Since the outbreak of the novel coronavirus disease at the beginning of December 2019, there have been more than 28.69 million cumulative confirmed cases worldwide as of 12th September 2020, affecting over 200 countries and regions with more than 920,463 deaths. The COVID-19 pandemic has been sweeping worldwide with unexpected rapidity. In this paper, a hybrid modelling strategy based on tessellation structure- configured SEIR model is adopted to estimate the scale of the pandemic spread. Building on the data pertaining (...) to the global pandemic transmission over the last six months around the world, key impact factors in the transmission and control procedure have been analysed, including isolation rate, number of the infected cases before taking prevention measures, degree of contact scope, and medical level, so as to capture the fundamental factor influencing the pandemic. The quantitative evaluation allowed us to illustrate the magnitude of risks of pandemic and to recommend appropriate national health policy of prevention measures for effectively controlling both intra- and interregional pandemic spread. Our modelling results clearly indicate that the early-stage preventive measures are the most effective action to be taken to contain the pandemic spread of the highly contagious nature of the COVID-19. (shrink)

SummaryFrom 1996 to 2006, Nepal experienced a substantial fertility decline, with the total fertility rate dropping from 4.6 to 3.1 births per woman. This study examines the associations between progress towards universal primary and secondary schooling and fertility decline in rural Nepal. Several hypotheses regarding mechanisms through which education affects current fertility behaviour are tested, including: the school environment during women's childhood; current availability of schools; knowledge of educational costs; and women's own educational attainment. Data for the analysis come from (...) the 2003–04 Nepal Living Standards Survey, a nationally representative random sample of households, which includes detailed data on fertility, household expenditure, educational attainment, demographic characteristics and the use of social services. Census and administrative data are also used to construct district-level gross enrolment ratios for primary and secondary schools during the women's childhood. Discrete dependent variable modelling techniques are used to estimate the effects of the following variables on the probability of women giving birth in a given year: district-level gross enrolment ratios for primary and secondary schools during women's childhood; having had a child previously in school; women's own educational level; current school availability; and other covariates. Separate models are estimated for the overall sample of rural women of reproductive age, and for parity-specific sub-samples. The results suggest that district-level gross enrolment ratios for secondary schools and, in some instances, having had a previous child enrolled in school are significant determinants of fertility in rural areas. These results are highly independent of women's own educational levels. Overall, the results suggest that, in the rural Nepal context, mass schooling influences the fertility transition through both community- and household-level pathways. (shrink)

In this paper, we critically consider the analogy between “infodemic” and “pandemic”, i.e. the spread of fake news about COVID-19 as a medial virus and the infection with the biological virus itself from the perspective of cultural evolutionary theory (CET). After confronting three major shortcomings of the ‘infodemic’ concept, we use CET as a background framework to analyze this phenomenon. To do so, we summarize which bi-ases are crucial for transmission in terms of cultural selection and how transmission is (...) restricted by filter bubbles or echo chambers acting as TRIMS (transmission isolating mechanisms) post “infection”, which isolate false from trustworthy scientific information in the context of the Corona pandemic. This is followed by a demonstration of the threat to biological fitness posed by the effects of an infection with fake news, which leads to a reduced willingness to vaccinate and follow health measures. We identify fake news on Covid as pseudoscience, trying to immunize itself from external influences. We then address the question of how to combat the infodemic. Since debunking strategies, such as warnings by fact-checking, have proven relatively ineffective in combating fake news, the inoculation theory from psychology might offer an alternative solution. Through its underlying ‘prebunking strategy’, which educates individuals about the risks and tactics of fake news prior to a potential infection, they could be ‘immunized’ in advance, similar to a virological vaccination. Although we recognize that the pandemic/infodemic analogy is in fact far from perfect, we believe that CET could provide a theoretical underpinning in order to give much more semantic depth to the concept ‘infodemic’. (shrink)

The nineteenth century is often remembered as the age in which steamships and steam locomotives connected the globe with a speed and efficiency previously unseen. Although contemporaries frequently equated the use of these rapid-transportation technologies with the progress of civilization, their expansion also had some negative consequences. Among these was the more rapid and widespread diffusion of many diseases along transportation corridors as nonhuman stowaways on ships and trains. Most infamously, cholera extended its reach globally by appropriating and using modern (...) transportation routes in ways that were unintended and disastrous for their human creators. This article goes beyond the technological optimism of the time, and its now widely accepted pitfalls, and expands the scope of Anatolian provincial modernization to incorporate a complex web of interactions between human and nonhuman agents in the context of technological use and nonuse. It argues for a complex cocreation of modern conditions between these agents, rather than seeing these conditions as solely produced by human actions or environmental limits. Among the different human agents, interaction greatly increased between Ottomans and European states and their citizens. As the Ottoman Empire became increasingly integrated into global transportation and economic networks, it also experienced the spread of cholera. In the Anatolian interior, cholera epidemics spread along the railroad. I examine the 1893 cholera epidemic in Eskişehir, an important junction town on the Ottoman Anatolian Railroad, which had just begun operation the previous year. The railroad was widely celebrated for its intended uses: tremendously increasing the speed and transportable volume of cargo and enabling travel for military and nonmilitary purposes. The cholera epidemic, however, was enabled by the unwitting use of the railroad lines as conveyors of sickness and death. Furthermore, human attempts to stop cholera’s spread by interrupting train service undermined the technology’s intended uses but also demonstrated the availability and potential effectiveness of nonuse as an option. (shrink)

We present a novel model of individual people, online posts, and media platforms to explain the online spread of epistemically toxic content such as fake news and suggest possible responses. We argue that a combination of technical features, such as the algorithmically curated feed structure, and social features, such as the absence of stable social-epistemic norms of posting and sharing in social media, is largely responsible for the unchecked spread of epistemically toxic content online. Sharing constitutes a distinctive (...) communicative act, governed by a dedicated norm and motivated to a large extent by social identity maintenance. But confusion about this norm and its lack of inherent epistemic checks lead readers to misunderstand posts, attribute excess or insufficient credibility to posts, and allow posters to evade epistemic accountability—all contributing to the spread of epistemically toxic content online. This spread can be effectively addressed if people and platforms add significantly more context to shared posts and platforms nudge people to develop and follow recognized epistemic norms of posting and sharing. (shrink)

This article aims at answering the following questions: What is the influence of age structure on the spread of coronavirus disease 2019? What can be the impact of stringency policy on the spread of COVID-19? What might be the quantitative effect of development levelincome and number of hospital beds on the number of deaths due to the COVID-19 epidemic? By employing the methodologies of generalized linear model, generalized moments method, and quantile regression models, this article reveals that (...) the shares of median age, age 65, and age 70 and older population have significant positive impacts on the spread of COVID-19 and that the share of age 70 and older people in the population has a relatively greater influence on the spread of the pandemic. The second output of this research is the significant impact of stringency policy on diminishing COVID-19 total cases. The third finding of this paper reveals that the number of hospital beds appears to be vital in reducing the total number of COVID-19 deaths, while GDP per capita does not affect much the level of deaths of the COVID-19 pandemic. Finally, this article suggests some governmental health policies to control and decrease the spread of COVID-19. (shrink)

It is well documented that the effects of legal punishment tend to drift to the family members, friends, and larger communities of convicted offenders. Instead of conceiving of punishment drift as incidental to legal punishment, or as merely foreseen but not intended by state authorities and thus permissible, I argue that efforts ought to be undertaken to limit or ameliorate it. Failure to confine punishment drift comes perilously close to punishment of the innocent and is at odds with other legal (...) doctrines and broader penal practices that hold offenders, and offenders alone, responsible for their crimes. Numerous arguments urging tolerance of punishment drift, or more assertively defending it, are examined and found wanting. (shrink)

The spread of epidemics, especially COVID-19, is having a significant impact on the world. If an epidemic is not properly controlled at the beginning, it is likely to spread rapidly and widely through the coexistence relationship between natural and social systems. A university community is a special, micro-self-organized social system that is densely populated. However, university authorities in such an environment seem to be less cautious in the defence of an epidemic. Currently, there is almost no quantitative research (...) on epidemic spreading and response strategies in universities. In this paper, a case study of a university community is considered for a simulation of an infection evolving after an epidemic outbreak based on the method of system dynamics of the three stages. The results show the following: By improving the speed of the initial emergency response, the total number of patients can be effectively controlled. A quarantine policy helps to slow down the evolution of infection. The higher the isolation ratio, the higher the cost; therefore, the isolation ratio should be optimized. It is important to make emergency plans for controlling epidemic spreading and carry out emergency drills and assessments regularly. According to the results of this study, we suggest an emergency management framework for public health events in university communities. (shrink)

Passion plays a crucial role in entrepreneurial activity, while its positive spillover to the family and community domains is scant. We proposed an integrated enrichment framework of “work-family-community” based on the literature in the field. Drawing upon the matching samples of entrepreneurs' individuals, families, and communities in the China Labor-force Dynamics Survey database, we identified a significant positive spillover effect into the family and community domains and explored the moderating role of the entrepreneur's perceived personal control. The empirical results (...) indicate that entrepreneurs with higher passion experience higher subjective wellbeing related to family members and have a higher likelihood of engagement in prosocial behaviors. Perceived personal control positively moderates the spillover of passion to life and economic satisfaction. The spread of an entrepreneurial role model's peer effect and the contagion of entrepreneurial passion have a significant positive impact on entrepreneurial behavior in a cluster. Synthesizing our findings, we contribute to the literature concerning work-family enrichment, entrepreneurial passion, and the spillover-crossover model and offer important implications for entrepreneurs' role transition tension. (shrink)

Individuals with populist radical-right (PRR) attitudes seem particularly inclined to spread disinformation. However, it is unclear whether this is due to the large amount of disinformation with a PRR bias or a general tendency to perceive disinformation as credible and/or spread it further. This study explores (1) effects of a PRR bias on perceived message credibility and likelihood of spreading disinformation, (2) the extent to which perceived message credibility mediates the spread of disinformation, (3) effects of PRR (...) attitudes on the perceived message credibility of biased disinformation, and (4) whether a PRR bias of disinformation explains the spread of disinformation by individuals with PRR attitudes despite a lack of credibility. An online experimental study (N = 572) in Germany showed that the spread of disinformation is mediated by perceived message credibility of disinformation. PRR attitudes positively predict perceived message credibility regardless of whether it is biased or unbiased disinformation. (shrink)

The spread of Islam to a wide geography in a short time had an effect on the activities of notification and invitation rather than military success. While Muslims invite communities that have not yet converted to Islam, on the other hand, they have taken care to keep the Muslim community alive with sermons and guidance by not neglecting their own internal reforms. They encouraged people who are well-equipped in terms of religious knowledge and inclined to oratory to bring (...) religious love and enthusiasm to the new generations, especially to the new generations. This sermon expectation of society has encouraged the growth of powerful preachers throughout history in the Islamic community. One of the factors that make the sermon effective is the reinforcement of the speech content with the literary language. Human nature, which is inclined towards beauty by nature, values the word being spoken by considering aesthetic concerns. The way to make speeches that are concise in words, deep in meaning, declaratively clear and intelligible depends on the proper use of literary arts. Literary writers try to make the most of the possibilities of literature and make their works permanent. In this study, the work al-Mudhish of Ibn al-Jawzī, who is one of the preachers who made his sermons effective by taking advantage of the rich possibilities of Arabic literature, was examined within the framework of the relationship between literature and preaching. The prominent literary elements in the work were examined in titles, striking examples were selected and critiqued. As a result, it has been revealed what Ibn al-Jawzī’s bringing together his sermon language and his literary work has brought to the sermon text. (shrink)

Visual attentional processes have been an important topic in psychological research for years. Over the last few decades, new methods have been developed, aiming to explore the characteristics of the focus of attention in more detail. Studies that applied the “Attention-Window Task” quantified the maximum extent of the “Attention Window” along its horizontal, vertical, and diagonal meridians, when subjects were required to perceive two peripheral stimuli simultaneously. In three experiments using the AWT, we investigated the effects of cue validity, stimulus-onset (...) asynchrony, and target stimuli complexity on the size and shape of the AW. Results showed that the AW was greater under valid cue conditions compared to invalid conditions, when the locations of cue and target stimuli differed. Furthermore, the AW decreased when the SOA between the cue and targets was reduced and also when the task complexity was higher and more objects within the target stimuli had to be classified. Overall, it can be stated that the AWT with its possible task changes and adjustments can be considered as a potential standard tool to measure the maximum spread and shape of the spatial AW. (shrink)

Nigeria agriculture, food security and dietary intake have not been exempted from the disruptions in countless sectors around the world due to the outbreak of COVID-19. The country first experienced the outbreak on February 27, 2020, and the experience since then has shown negative effects not only on the socioeconomic conditions but also on agriculture, food security and dietary intake. Long term in-depth analysis of the effects of this pandemic on food security and dietary intake using quantitative data is still (...) very difficult due to paucity of data and the great level of the improbability of the trajectory of the spread of the Virus. This study is a rapid assessment of the short and long-term potential effects of the disease. It relied on a review of situation reports especially by the Nigeria Centre of Disease Control and other reports around the world on COVID-19, personal observations, and public opinion via mobile telephone survey of Lagos and Oyo States, Nigeria. Findings show that food demand and supply shocks caused by COVID-19 outbreak affect agriculture, food and dietary intake negatively through COVID-19 policies. It leads to a reduction in household income coupled with hike in food prices. Owing to the Nigeria’s crude farming practice, there was a scarcity of hired labour required for production process during 2020 farming season. This implies a high likelihood of low output and further surge in food prices in the future. Food access was also compromised with the accumulation of unsold fresh produce by the smallholder farmers and the low salary earners during movement restrictions and of loss income as a result of international border closure. Food and dietary intake is affected as people are shifting diets to more affordable and low quality foods, while food stability is not guaranteed due to market insecurity, prompting an extraordinary level of indecision. The study concludes that the shock of COVID-19 is not only a demand management problem but a multidimensional crisis requiring monetary, fiscal, and health policy responses with global collaboration and cooperation. (shrink)

Bankruptcy of listed companies or shareholders delisting usually causes the crisis spreading in stock markets. Based on the systematic analysis of the epidemic diseases and rumors spreading on the complex networks, the SIR model is introduced to research the crisis spreading in shareholding networks of listed companies and their main holders on the basis of the data about ownership structure in Chinese Stock Markets. The characteristics of shareholding networks are studied, and the parameters for the SIR model are obtained by (...) empirical approach. Then, the numerical computation method is successfully used to analyze the crisis spreading in the networks when the networks meet random failures or intentional attacks. We find the networks have good robustness against the random failures. However, the crisis will spread at a high speed and cause catastrophic damage if there are some failures or attacks on hub vertices in the networks. Under this condition, the networks show obvious vulnerability. Last but not least, the controllability of the networks under the condition of intentional attacks and random failures is studied. The results show that if the network is controlled globally, it is more reliable to allow a politically good new or an appropriate exciting economical policy to play the role in orienting markets under the control of public opinions as the crisis occurs. However, under normal circumstances, controlling a small part of driver vertices representing listed companies, applying appropriate control strategies, and using its characteristics of high efficiency of sending information can effectively control the stock market. Our research provides a new reference to further exploration about the transmission mechanism of the crisis based SIR model and further research on the controllability of crisis spreading in financial markets. (shrink)

More recent advancements in digital technologies have significantly alleviated the dissemination of new scientific ideas as well as the storing, searching and retrieval of large amounts of published research findings. While not denying the benefits of this novel ‘economy of memory,’ this paper endeavors to shed light on the ways in which the use of digital technologies may be linked to a distortion of the system of formal publications that facilitates the effective dissemination and collaborative building of scientific knowledge. Through (...) combining three different strands of discussion that are often left separate – those pertaining to the cognitive effects of new technological memory systems, those pertaining to citation and publishing practices, and those regarding the effects of formalizing modes of research governance – it is also shown that this distortion is not merely a consequence of technological developments alone. Rather, such a distortion is inseparable from and potentially aggravated by the spreading of increasingly dysfunctional, formalizing research governance mechanisms. It is argued that these mechanisms run the risk of fostering the proliferation of knowledge practices that are characterized by an increasing degree of superficiality as well as the strategic publication of research that is of a decreasing degree of originality. If left unaddressed, this may pose a serious threat to the efficiency and effectiveness of the formal record of scientific knowledge as a tool for the dissemination of original research. By extension, this may in the long run seriously undermine the capacity of the publicly funded research system more generally. (shrink)

We propose a framework for the description of the effects of vaccinations on the spreading of an epidemic disease. Different vaccines can be dosed, each providing different immunization times and immunization levels. Differences due to individuals’ ages are accounted for through the introduction of either a continuous age structure or a discrete set of age classes. Extensions to gender differences or to distinguish fragile individuals can also be considered. Within this setting, vaccination strategies can be simulated, tested and compared, as (...) is explicitly described through numerical integrations. (shrink)

An increasing body of evidence indicates that the response to genotoxic agents such as radiation or drugs is a group phenomenon, rather than the summed response of individual independent cells to injury. Thus, a complex contagion-like response may spread beyond the initial impact of an agent to enlarge its effect. This indirect effect, termed “Bystander Effect,” is multifaceted and may play a significant role in the therapy of tumors and in carcinogenesis. A better understanding of this (...) phenomenon is needed in order to modulate treatment protocols to therapeutic advantage and to provide more rational guidelines for the evaluation of environmental hazards. BioEssays 22:286–290, 2000. © 2000 John Wiley & Sons, Inc. (shrink)

The growing body of literature on partnerships has paid most attention to their implications at the macro level, for society, as well as the meso level, for the partnering organisations. While generating many valuable insights, what has remained underexposed is the micro level, i.e. the role of managers and employees in partnerships, and how their actions and interactions can have an effect on the spread and potential effectiveness of collaborative efforts. This article uses a case-study approach to empirically (...) explore the patterns and potential boundary conditions of so-called ‘trickle effects’ of partnerships among individual actors within and outside partnering companies, which have thus far only been proposed conceptually. Based on interviews with employees from three different companies, we found an evidence of trickle-down and trickle-up effects with higher and lower management, as well as trickle-round effects with colleagues, family, friends and customers. The article discusses several partnership characteristics that seem to play a role, and notes implications for research and practice. (shrink)

The reason which is generally given in the usage-based literature to account for the retention of irregularity in high frequency items during analogical change is entrenchment: a frequently occurring irregular linguistic unit resists analogical levelling because it is highly entrenched in speakers’ mental lexicons through its repeated use. Although previous research similarly suggests that the entrenchment of irregular and regularised forms competing during analogical levelling should be proportional to their frequency of use, evidence for this relation between frequency and entrenchment (...) comes exclusively from corpus-based studies; what is missing, therefore, are behavioural tests contrasting the competing innovative and conservative forms. The present paper aims to provide converging evidence for an entrenchment-based explanation of frequency patterns in analogical change on the basis of data obtained from an experiment in which participants are presented with traditional and analogical variants of a variable currently undergoing analogical levelling. Differences in processing latencies obtained during the experiment are interpreted as differences in entrenchment. The results provide i) evidence in favour of the prevalent entrenchment-based explanation of the conserving effect of frequency in analogical change, and ii) evidence of the current state and spread of the change under investigation. (shrink)

The issue of climate change poses an important problem that requires immediate collaboration from everyone, including individuals, governments, and businesses. While consumption culture constitutes a significant proportion of greenhouse gas emissions, most of these emissions are caused by the consumption of the wealthiest. In this article, we will explore the challenges that consumer culture has exacerbated regarding climate change and propose that transitioning to a simpler and more sustainable lifestyle could be an effective solution in the fight against climate change. (...) Such transitions can be leveraged through the inspiration of celebrities (e.g., Keanu Reeves, Chow Yun-fat, Kristen Bell, Leonardo DiCaprio) that pursue simple, non-glamorous lifestyles that do not promote excessive consumerism. (shrink)

Cooperative spreading dynamics on complex networks is a hot topic in the field of network science. In this paper, we propose a strategy to immunize some nodes based on their degrees. The immunized nodes disable the synergistic effect of cooperative spreading dynamics. We also develop a generalized percolation theory to study the final state of the spreading dynamics. By using the Monte Carlo method, numerical simulations reveal that immunizing nodes with a large degree cannot always be beneficial for containing (...) cooperative spreading. For small values of transmission probability, immunizing hubs can suppress the spreading, while the opposite situation happens for large values of transmission probability. Furthermore, numerical simulations show that immunizing hubs increase the cost of the system. Finally, all numerical simulations can be well predicted by the generalized percolation theory. (shrink)

In the real world, individual resources are crucial for patients when epidemics outbreak. Thus, the coupled dynamics of resource diffusion and epidemic spreading have been widely investigated when the recovery of diseases significantly depends on the resources from neighbors in static social networks. However, the social relationships of individuals are time-varying, which affects such coupled dynamics. For that, we propose a coupled resource-epidemic dynamic model on a time-varying multiplex network to synchronously simulate the resource diffusion and epidemic spreading in dynamic (...) social networks. The equilibrium analysis of the coupled model is conducted in a general scenario where the resource generation varies between susceptible and infected states and the recovery rate changes between resourceful and noresource states. By using the microscopic Markov chain approach and Monte Carlo simulations, we determine a probabilistic framework of the intralayer and interlayer dynamic processes of the coupled model and obtain the outbreak threshold of epidemic spreading. Meanwhile, the experimental results show the trivially asymmetric interactions between resource diffusion and epidemic spreading. They also indicate that the stronger activity heterogeneity and the larger contact capacity of individuals in the resource layer can more greatly promote resource diffusion, effectively suppressing epidemic spreading. However, these two individual characters in the epidemic layer can cause more resource depletion, which greatly promotes epidemic spreading. Furthermore, we also find that the contact capacity finitely impacts the coupled dynamics of resource diffusion and epidemic spreading. (shrink)

We use a cultural psychology approach to examine the relevance of the Health Belief Model for predicting a variety of behaviors that had been recommended by health officials during the initial stages of the COVID-19 lockdown for containing the spread of the virus and not overburdening the health system in Europe. Our study is grounded in the assumption that health behavior is activated based on locally relevant perceptions of threats, susceptibility and benefits in engaging in protective behavior, which requires (...) careful attention to how these perceptions might be structured and activated. We assess the validity of the HBM in two European countries that have been relatively understudied, using simultaneous measurements during acute periods of infection in Romania and Italy. An online questionnaire provided a total of valid answers from both countries. First, to understand individual difference patterns within and across populations, we fit a General Linear Model in which endorsement was predicted by behavior, country, their interaction, and a random effect for participants. Second, we assess the effect of demographics and health beliefs on prevention behaviors by fitting a multi-group path model across countries, in which each behavior was predicted by the observed health belief variables and demographics. Health beliefs showed stronger relationships with the recommended behaviors than demographics. Confirming previously reported relationships, self-efficacy, perceived severity, and perceived benefits were consistently related to the greater adoption of individual behaviors, whereas greater perceived barriers were related to lower adoption of health behaviors. However, we also point to important location specific effects that suggest that local norms shape protective behavior in highly contextualized ways. (shrink)

The authors study the impact of institutional corporate social responsibility —defined as CSR targeted at a borrowing firm’s secondary stakeholders—on bank loans. Findings suggest that higher levels of institutional CSR are associated with lower levels of interest rates and loan spreads. In addition, institutional CSR also tempers the positive impact of loan maturity and firm leverage on interest rates and loan spread. These effects were strongest among firms that demonstrated sustained performance, rather than among firms that showed mixed performance (...) in terms of their secondary stakeholder-related activities. This study indicates institutional CSR is valued by stakeholders for its risk mitigating and transaction cost reducing effects independent of technical CSR, defined as CSR targeted at primary stakeholders. (shrink)

The spreading of reputational information about group members through gossip represents a widespread, efficient, and low-cost form of punishment. Research shows that negative arousal states motivate individuals to gossip about the transgressions of group members. By sharing information in this way groups are better able to promote cooperation and maintain social control and order.

The experience of a reward appears to enhance memory for recent prior events, adaptively making that information more available to guide future decision-making. Here, we tested whether reward enhances memory for associative item-location information and also whether the effect of reward spreads to other categorically-related but unrewarded items. Participants earned either points (Experiment 1) or money (Experiment 2) through a time-estimation reward task, during which stimuli-location pairings around a 2D-ring were shown followed by either high-value or low-value rewards. All (...) stimuli were then tested for location memory or recognition (yes/no), immediately and after a 24-hour delay. Across both experiments (combined analysis), there was a robust improvement in location memory following high-value rewards, even though evidence supporting this effect was reliable in Experiment 2 but not in Experiment 1. The memory-enhancing effect of reward was observed on both the immediate and delayed location-memory tests. Reward-enhanced memory for both directly rewarded stimuli and categorically related stimuli that were not directly rewarded. No reliable effect of reward value on yes/no recognition-memory performance was observed in either experiment. We hypothesise that reward enhances the consolidation of recent experience and conceptually related memories to make these more available for future decisions. (shrink)

Cross-sector social partnerships are often studied from a macro and meso perspective, also in an attempt to assess effectiveness and societal impact. This article pays specific attention to the micro perspective, i.e. individual interactions between and within organizations related to partnerships that address the 'social good'. By focusing on the potential effects and mechanisms at the level of individuals and the organization(s) with which they interact, it aims to help fill a gap in research on partnerships, including more insight into (...) the process of interaction. We conceptually explore micro level interactions, and how partnership effects may 'trickle down' (e.g. from management to employees), or 'trickle up' (from employees to management) or 'trickle round' (e.g. between employees). Based on the literature from various disciplines, we discuss how more generic theories on social exchange and contagion, social learning and attraction-selection-attrition can help shed light on micro level interactions in a partnership, considering in particular transmission mechanisms via employees, top and middle management, and customers. In this way, partnerships can have wider benefits, as individuals have multiple roles and effects at the micro level can spread to the meso and macro levels as well. Implications for research and practice are outlined. (shrink)

There is growing worldwide concern that the rampant spread of digital fake news via new media technologies is detrimentally impacting Democratic elections. However, the actual influence of this recent Internet phenomenon on electoral decisions has not been directly examined. Accordingly, this study tested the effects of attention to DFN on readers’ Presidential candidate preferences via an experimental web-survey administered to a cross-sectional American sample. Results showed no main effect of exposure to DFN on participants’ candidate evaluations or vote (...) choice. However, the perceived believability of DFN about the Democratic candidate negatively mediated evaluations of that candidate—especially amongst far-right ideologues. These results suggest that DFN may at worst reinforce the partisan dispositions of mostly politically conservative Internet users, but does not cause or induce conversions in these dispositions. Overall, this study contributes novel experimental evidence, indicating that the potential electoral impact of DFN, although concerning, is strongly conditional on a reciprocal interaction between message receptibility and a pre-existing right-wing ideological orientation. The said impact is, therefore, likely narrow in scope. (shrink)

Nowadays, some of the things that are ḥarāmto be consumed, such as lard, its derivatives and alcohol are used as additives or additional nutrients in products, namely food and cosmetics that people use widely in daily life. The provision of these products, which are accepted as najis(impure), stands in front of us as one of the actual fiqh problems. In order to produce an accurate solution in this regard, the reaction condition and the level of dissolution in the product must (...) be determined. In this article, the level of mutanajjis (contamination) of the products that najisthings transforms through istihlāk(physical change) and the provision (hukm) of benefits from such things are examined. The research covers the discussions in the classical period regarding the provision of things, which included najāsah(impurity) and underwent physical change as well as the evaluations of contemporary Islamic jurists. The aim of this study is to contribute to the researches, which will be carried out to determine the provision of products containing ḥarāmelements. As the production is carried out on an industrial scale, such studies are important today in terms of the establishment of “ḥalāl” sensitivity and meeting the needs of people who have this sensitivity to learn the provision of such products.SummaryNowadays, in various sectors, especially food, feed, cosmetics, health and clothing industries, for the purposes of reducing the cost of the product, extending the shelf life, making the product more attractive in terms of color, consistency and aroma, many substances are added to the main material. The fact that some of the substances added are ḥarām(forbidden) such as blood, lard, pest, and ethyl alcohol require the subject to be considered in terms of fiqh. It is important to clarify two issues in order to reach a healthy result in the studies aiming to determine the provision (ḥukm) of the products that are mixed with najis(impure) substance. One of them is the determination of the level of istihlāk(physical change) in the mutanajjis(contamination) things. The second is the determination of the basic principles to be used in determining the provision of the things which najāsahhas undergone the physical change in. In this study conducted within the scope of this purpose and method, the hadīthsrelated to two different issues that are directly related to the subject have been evaluated as the basic textual basis. These are narrations about the cleanliness and pollution status of the contaminated water, and about the availability of fats and oils, which the dead mouse is seen in. It is stated in the narrations about the condition of the water that najāsah involved in, the water will not be najisunless its smell, taste or color changes because of the falling najāsahin it. According to this hadith, which shows the change of description as a measure, the fuqahāʾ(jurists) came to a consensus on the fact that water, which one of its characteristics changed because of najāsahwould be considered mutanajjis. When thishadithis evaluated together with the narrations that indicate the small amount of water is contaminated because of najāsah, in fact, it is seen that while the water is considered to be clean-najis, the situation of the water being affected from najāsahis taken as the basis and aimed to protect human health against the dirty water. At the time when there were not any one of today's microbiological analysis laboratories, the way to understand the pollution status of water was to see if the smell, color and taste of the water changed while taking the amount of the water into account. Since the rate of foreign matter in the water, the level of pollution and the health status of the water can be determined correctly in the laboratory today, operating the modern techniques as well as the measure of qualification change will be appropriate for the purpose of the hadīthsmentioned.In the narrations about the state of the fat, which the dead mouse is found in, it is seen that different operations are requested depending on the fat being solid or liquid. If the fat is liquid, different instructions have been made such as its being poured or used in lighting. Mālikīs, Shāfiʿīs, and Ḥanbalīfaqīhs (jurists) of the first period have ruled that liquids such as vinegar, milk and honey are mutanajjis, whether they are in little quantity or not, and whether their descriptions are changed or not, claiming that the amount of oil and the degree of impact on the dirt is not declared in the hadīths. The Ḥanafīs adopted the provision in the narrations mentioned pointing to a small amount of liquid oil and considered the measure of description change for a large amount of liquid valid. Ẓāhirīs, Ibn Taymiyyah and some of the faqīhsargued that the liquids which one cannot feel the color, taste or smell of the najāsahin are clean, regardless of the amount.These three approaches are open to criticism because the first is limited only to the literal meaning in the narrations and neglects the aims, and the second ignored the non-water fluids’ ability to hide the descriptions of the substance added to them, and the third evaluates the mustahlak substance (that has undergone a physical change) as if it had been istiḥālah(chemically changed). When the narrations related to the subject are examined, it is understood that while the usage of the liquid fat which the dead mouse was seen in as the food was prohibited, in fact, it was based on the foresight that all of the fat is affected by the mouse. It appears to have been ruled out that only the part polluted is the part affected by thenajāsahfor the fact that after the removal of the mouse and the environment from the solid oil exposed to the same contamination, the rest is allowed to be eaten. According to this, it is possible to say that the measure of mutanajjisin the things that affected by najāsahis in the degree of spreading of najāsah.Nowadays it is possible to determine the presence of najisthings in the main material, which is used as additive or addition, by the level of effect of these substances in the product, as well as by the assays. If the najissubstances used for purposes such as brightness, taste, consistency and extending shelf life, perform the expected functions, it means that they protect their presence in the product effectively. In fact, it should be acknowledged that these substances continue to exist effectively in the product, if they perform the targeted function without any chemical change, even the ratio in the product is low or the color, taste and odor are eliminated during the mixture.The faqīhswhile differed in opinion about the mutanajjisof things that the najāsahhad undergone physical changes in, they, in concert, considered the substances, which were not cleaned or could not be cleansed from which that they accept as mutanajjisby their own measurements, khabīs(disgusting), and have accepted the people’s eating of them as ḥarām. Likewise, they did not allow such things to be used in any way touching the body, clothing and containers. They have evaluated the narrations, which requires the spilth the fat that the dead mouse was seen in, as the main basis in this issue. On the other hand, about the use of the mutanajjisthings outside the human consumption area and in such a way that the clothes and body would not be contaminated; the majority of thefaqīhs preferred the mubāḥ provision. They have put forth the narrations as the basis that recommends the usage of the liquid oil in which the mouse was fallen in lighting. These approaches of the fuqahāʾabout the effect of the istihlākon the provision of making use of the things that affected by najāsahare of worth as the basic principles on the subject. It is possible to say that it is not permissible to consume food products containing lard or pork gelatin, and the chicken that has been torn apart while being left in hot water in order to pluck its feathers, and the egg which becomes mutanajjisfor it is boiled up with thenajāsahon, and the using of cosmetic products containing lard when today’s industrial products are evaluated in accordance with these principles. If taken the general opinion that defends that the ethyl alcohol is najis as the basis, the carbonated soft drinks, which are added to alcohol, can also be evaluated in this context. (shrink)

In social networks, individual heterogeneity is widely existed, and an individual often tends to contact more frequently with friends of similar status or opinion. It is worth noting that the contact preference characteristic among heterogeneous individuals will have a significant effect on social contagions. Thus, we propose a social contagion model which takes the heterogeneity of individual influence and contact preference into account, and make a theoretical analysis of the social spreading process by developing an edge-based compartmental theory. We (...) find that the competition between simple contagion and complex contagion leads to the emergence of crossover phase transition phenomena when the influence of ordinary individuals is low: it changes from being hybrid to continuous, then to hybrid, and eventually to continuous phase transition with the increase of the contact probability of homogeneous individuals. However, it changes from being first-order to continuous phase transition when the influence strength of ordinary individuals is relatively high. In addition, there is an optimal value or range of contact probability of homogeneous individuals which maximizes the spreading size, and the optimal value or lower bound of the optimal range decreases with the increase of transmission probability. Our theoretical prediction results are in good agreement with the simulation results. (shrink)

The spread of the COVID-19 virus shows that it is time to re-emphasize the ethical attitude of “awe of others, awe of nature, and awe of life.” It once again reveals the importance of green development. In this study, we introduce awe into the context of COVID-19 and construct an “emotion-motivation-behavior” framework, aiming to explore the relationship between the epidemic and green purchasing behavior from a psychological perspective. Study 1 demonstrates the effect of awe on green purchasing and (...) examines the mediating role of the motivation perspective, to reveal the potential different path. Specifically, prosocial motivation mediates the effect of positive awe evoked by COVID-19 on green purchasing; risk avoidance motivation mediates the effect of negative awe evoked by COVID-19 on green purchasing. Study 2 examined the moderating effect of self-construal. These findings have important management implications for enterprises to correctly use emotional guidance strategies and promote green marketing practices during the COVID-19. (shrink)

The seed system is a major component of traditional management of crop genetic diversity in developing countries. Seed flows are an important part of this system. They have been poorly studied for minor Andean crops, especially those that are propagated vegetatively. We examine the seed exchanges of Oxalis tuberosa Mol., a vegetatively propagated crop capable of sexual reproduction. We studied the seed exchanges of four rural communities in Candelaria district at the international and local levels, emphasizing the spread of (...) new sexually-produced genotypes through these exchanges. Interviews with 44 farmers generated socioeconomic, agronomic, crop diversity and seed exchange information, and data on the potential incorporation of new sexually-produced genotypes in the crop germplasm. We interviewed merchants to evaluate the input and output of genetic diversity in the communities studied. Results showed a positive effect of the farmers’ wealth on the diversity cultivated and on seed exchanges. Most seed exchanges occurred at market, creating a distinction between cash and self-consumption landraces. Cash landraces were intensively exchanged; self-consumption landraces were isolated at the farmer level and prone to genetic drift and complete loss. Merchants exported seeds of cash landraces across Bolivia and into Peru and Argentina. New sexually produced genotypes are less incorporated into cash landraces than in self-consumed landraces. However, new genotypes incorporated into cash landraces are diffused faster and better, being more intensively exchanged. We propose conservation strategies that can be applied to other vegetatively propagated and minor Andean crops. (shrink)

Horizontal gene transfer (HGT) is a major mechanism responsible for the spread of antibiotic resistance. Conversely, it is often assumed that antibiotics promote HGT. Careful dissection of the literature, however, suggests a lack of conclusive evidence supporting this notion in general. This is largely due to the lack of well‐defined quantitative experiments to address this question in an unambiguous manner. In this review, we discuss the extent to which HGT is responsible for the spread of antibiotic resistance and (...) examine what is known about the effect of antibiotics on the HGT dynamics. We focus on conjugation, which is the dominant mode of HGT responsible for spreading antibiotic resistance on the global scale. Our analysis reveals a need to design experiments to quantify HGT in such a way to facilitate rigorous data interpretation. Such measurements are critical for developing novel strategies to combat resistance spread through HGT. -/- . (shrink)

The novel coronavirus disease has become a global pandemic, causing substantial anxiety. One potential factor in the spread of anxiety in response to a pandemic threat is emotion contagion, the finding that emotional experiences can be socially spread through conscious and unconscious pathways. Some individuals are more susceptible to social contagion effects and may be more likely to experience anxiety and other mental health symptoms in response to a pandemic threat. Therefore, we studied the relationship between emotion contagion (...) and mental health symptoms during the COVID-19 pandemic. We administered the Emotion Contagion Scale along with a measure of anxiety in response to COVID-19 and secondary outcome measures of depression, anxiety, stress, and obsessive-compulsive disorder symptoms. These measures were completed by a large student sample in the United States. Data were collected in the months of April and May of 2020 when the fear of COVID-19 was widespread. Results revealed that greater susceptibility to emotion contagion was associated with greater concern about the spread of COVID-19, more depression, anxiety, stress, and OCD symptoms. Consumption of media about COVID-19 also predicted anxiety about COVID-19, though results were not moderated by emotion contagion. However, emotion contagion did moderate the relationship between COVID-19-related media consumption and elevated OCD symptoms. Although limited by a cross-sectional design that precludes causal inferences, the present results highlight the need for study of how illness fears may be transmitted socially during a pandemic. (shrink)

The epidemic spreading is closely related to the spread of information, and it will coevolve with the information transmission. Considering that the network structure has a significant impact on network dynamics and the virtual contact networks have obvious community structures in reality, in this article, we built a multiplex network, which contains a community structure to explore the interplay of the coupled spread dynamics. We first use a microscopic Markov chain approach to characterize the coupled disease-awareness dynamics and (...) then analyze the effect of different factors on the coevolution of information dissemination and epidemic spreading based on the Monte Carlo simulation. The simulation results show that promoting the dissemination of information is indeed conducive to suppressing the spread of disease, but changing the process of disease transmission has no obvious effect on the information dissemination. The analysis also reveals that increasing the information transmission rate or decreasing the information recovery rate can promote the spread of information and inhibit the spread of diseases. In addition, taking preventive behaviors or decreasing the long-distance jump also helps slow the epidemic spreading. (shrink)