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Showing papers by "DePaul University published in 2021"


Journal ArticleDOI
TL;DR: In this Review, Connolly, Jardetzky and Longnecker discuss recent insights into herpesvirus entry by analysing the structures of entry glycoproteins, including the diverse receptor-binding glyCoproteins and conserved fusion proteins.
Abstract: Herpesviruses are ubiquitous, double-stranded DNA, enveloped viruses that establish lifelong infections and cause a range of diseases. Entry into host cells requires binding of the virus to specific receptors, followed by the coordinated action of multiple viral entry glycoproteins to trigger membrane fusion. Although the core fusion machinery is conserved for all herpesviruses, each species uses distinct receptors and receptor-binding glycoproteins. Structural studies of the prototypical herpesviruses herpes simplex virus 1 (HSV-1), HSV-2, human cytomegalovirus (HCMV) and Epstein–Barr virus (EBV) entry glycoproteins have defined the interaction sites for glycoprotein complexes and receptors, and have revealed conformational changes that occur on receptor binding. Recent crystallography and electron microscopy studies have refined our model of herpesvirus entry into cells, clarifying both the conserved features and the unique features. In this Review, we discuss recent insights into herpesvirus entry by analysing the structures of entry glycoproteins, including the diverse receptor-binding glycoproteins (HSV-1 glycoprotein D (gD), EBV glycoprotein 42 (gp42) and HCMV gH–gL–gO trimer and gH–gL–UL128–UL130–UL131A pentamer), as well gH–gL and the fusion protein gB, which are conserved in all herpesviruses. Recent crystallography and electron microscopy studies have refined our model of herpesvirus entry into cells. In this Review, Connolly, Jardetzky and Longnecker discuss recent insights into herpesvirus entry by analysing the structures of entry glycoproteins, including the diverse receptor-binding glycoproteins and conserved fusion proteins.

119 citations


Journal ArticleDOI
04 Jan 2021
TL;DR: It is suggested that CO VID-19 surveillance systems should take into account county-level income inequality to better understand the social patterning of COVID-19.
Abstract: Importance It is now established that across the United States, minoritized populations have borne a disproportionate burden from coronavirus disease 2019 (COVID-19). However, little is known about the interaction among a county’s racial/ethnic composition, its level of income inequality, political factors, and COVID-19 outcomes in the population. Objective To quantify the association of economic inequality, racial/ethnic composition, political factors, and state health care policy with the incidence and mortality burden associated with COVID-19. Design, Setting, and Participants This cross-sectional study used data from the 3142 counties in the 50 US states and for Washington, DC. Data on the first 200 days of the COVID-19 pandemic, from the first confirmed US case on January 22 to August 8, 2020, were gathered from the Centers for Disease Control and Prevention and USAFacts.org, the US Census Bureau, the American Community Survey, GitHub, the Kaiser Family Foundation, the Council of State Governments, and the National Governors Association. Exposures Racial/ethnic composition was determined as percentage of the population that is Black or Hispanic; income inequality, using the Gini index; politics, political affiliation and sex of the state governor, gubernatorial term limits, and percentage of the county’s population that voted Republican in 2016; and state health care policy, participation in the expansion of Medicaid under the Affordable Care Act. Six additional covariates were assessed. Main Outcomes and Measures Cumulative COVID-19 incidence and mortality rates for US counties during the first 200 days of the pandemic. Main measures include percentage Black and Hispanic population composition, income inequality, and a set of additional covariates. Results This study included 3141 of 3142 US counties. The mean Black population was 9.365% (range, 0-86.593%); the mean Hispanic population was 9.754% (range, 0.648%-96.353%); the mean Gini ratio was 44.538 (range, 25.670-66.470); the proportion of counties within states that implemented Medicaid expansion was 0.577 (range, 0-1); the mean number of confirmed COVID-19 cases per 100 000 population was 1093.882 (range, 0-14 019.852); and the mean number of COVID-19–related deaths per 100 000 population was 26.173 (range, 0-413.858). A 1.0% increase in a county’s income inequality corresponded to an adjusted risk ratio (RR) of 1.020 (95% CI, 1.012-1.027) for COVID-19 incidence and adjusted RR of 1.030 (95% CI, 1.012-1.047) for COVID-19 mortality. Inequality compounded the association of racial/ethnic composition through interaction, with higher income inequality raising the intercepts of the incidence curve RR by a factor of 1.041 (95% CI, 1.031-1.051) and that of the mortality curve RR by a factor of 1.068 (95% CI, 1.042-1.094) but slightly lowering their curvatures, especially for Hispanic composition. When state-level specificities were controlled, none of the state political factors were associated with COVID-19 incidence or mortality. However, a county in a state with Medicaid expansion implemented would see the incidence rate RR decreased by a multiplicative factor of 0.678 (95% CI, 0.501-0.918). Conclusions and Relevance This county-level ecological analysis suggests that COVID-19 surveillance systems should account for county-level income inequality to better understand the social patterning of COVID-19 incidence and mortality. High levels of income inequality may harm population health irrespective of racial/ethnic composition.

112 citations


Journal ArticleDOI
10 Mar 2021-PLOS ONE
TL;DR: In this article, the authors investigated individuals' willingness to engage in prescribed and discretionary behaviors, as well as country-level and individual-level factors that might drive such behavioral intentions, and found that the more people endorsed moral principles of fairness and care (vs. loyalty and authority), the more they were inclined to report trust in science, which, in turn, statistically predicted prescribed, discretionary behavioral intentions.
Abstract: The worldwide spread of a new coronavirus (SARS-CoV-2) since December 2019 has posed a severe threat to individuals’ well-being. While the world at large is waiting that the released vaccines immunize most citizens, public health experts suggest that, in the meantime, it is only through behavior change that the spread of COVID-19 can be controlled. Importantly, the required behaviors are aimed not only at safeguarding one’s own health. Instead, individuals are asked to adapt their behaviors to protect the community at large. This raises the question of which social concerns and moral principles make people willing to do so. We considered in 23 countries (N = 6948) individuals’ willingness to engage in prescribed and discretionary behaviors, as well as country-level and individual-level factors that might drive such behavioral intentions. Results from multilevel multiple regressions, with country as the nesting variable, showed that publicized number of infections were not significantly related to individual intentions to comply with the prescribed measures and intentions to engage in discretionary prosocial behaviors. Instead, psychological differences in terms of trust in government, citizens, and in particular toward science predicted individuals’ behavioral intentions across countries. The more people endorsed moral principles of fairness and care (vs. loyalty and authority), the more they were inclined to report trust in science, which, in turn, statistically predicted prescribed and discretionary behavioral intentions. Results have implications for the type of intervention and public communication strategies that should be most effective to induce the behavioral changes that are needed to control the COVID-19 outbreak.

111 citations


Journal ArticleDOI
TL;DR: Recent research on ecosystem disservices of urban trees, including infrastructure conflicts, health and safety impacts, aesthetic issues, and environmentally detrimental consequences, as well as management costs related to ecological disturbances and risk management are discussed.
Abstract: The provision of ecosystem services is a prominent rationale for urban greening, and there is a prevailing mantra that ‘trees are good’. However, understanding how urban trees contribute to sustainability must also consider disservices. In this perspective article, we discuss recent research on ecosystem disservices of urban trees, including infrastructure conflicts, health and safety impacts, aesthetic issues, and environmentally detrimental consequences, as well as management costs related to ecological disturbances and risk management. We also discuss tradeoffs regarding species selection and local conservation concerns, as well as the central role of human perception in the interpretation of ecosystem services and disservices, particularly the uncritical assertion that ‘everybody loves trees’. Urban forestry decision-making that fails to account for disservices can have unintended negative consequences for communities. Further research is needed regarding life cycle assessments, stakeholder decision-making, return-on-investment, and framings of services and disservices in urban forestry.

99 citations


Journal ArticleDOI
TL;DR: In this paper, the authors propose an agenda for adopting open science practices in communication, which includes the following seven suggestions: (1) publish materials, data, and code; (2) preregister studies and submit registered reports; (3) conduct replications; (4) collaborate; (5) foster open science skills; (6) implement Transparency and Openness Promotion Guidelines; and (7) incentivize open science practice.
Abstract: In the last 10 years, many canonical findings in the social sciences appear unreliable. This so-called “replication crisis” has spurred calls for open science practices, which aim to increase the reproducibility, replicability, and generalizability of findings. Communication research is subject to many of the same challenges that have caused low replicability in other fields. As a result, we propose an agenda for adopting open science practices in Communication, which includes the following seven suggestions: (1) publish materials, data, and code; (2) preregister studies and submit registered reports; (3) conduct replications; (4) collaborate; (5) foster open science skills; (6) implement Transparency and Openness Promotion Guidelines; and (7) incentivize open science practices. Although in our agenda we focus mostly on quantitative research, we also reflect on open science practices relevant to qualitative research. We conclude by discussing potential objections and concerns associated with open science practices.

92 citations


Proceedings ArticleDOI
06 May 2021
TL;DR: In this article, the authors examined the role of speculative design fictions in the imagined futures of youth participants of a Chicago summer design program and highlighted emerging themes and contributed an analysis of remote co-design through an Afrofuturism lens.
Abstract: The question of who gets to contribute to design futures and technology innovation has become a topic of conversation across HCI, CSCW, and other computing communities. This conversation has grave implications for communities that often find themselves an afterthought in technology design, and who coincidentally could benefit most from technological interventions in response to societal oppression. To explore this topic, we examined “futuring” through co-designed speculative design fictions as methods to envision utopian and dystopian futures. In a case study, we examined technology’s role in the imagined futures of youth participants of a Chicago summer design program. We highlight emerging themes and contribute an analysis of remote co-design through an Afrofuturism lens. Our analysis shows that concepts of utopian futures and technologies to support those futures are still heavily laden with dystopian realities of racism and poverty. We discuss ways that speculative design fictions and futuring can serve to address inclusivity in concept generation for new technologies, and we provide recommendations for conducting design techniques remotely with historically excluded populations.

62 citations


Journal ArticleDOI
TL;DR: Stenotrophomonas maltophilia is an opportunistic pathogen of significant concern to susceptible patient populations as mentioned in this paper, which can cause nosocomial and community-acquired respiratory and bloodstream infections and various other infections in humans.
Abstract: Stenotrophomonas maltophilia is an opportunistic pathogen of significant concern to susceptible patient populations. This pathogen can cause nosocomial and community-acquired respiratory and bloodstream infections and various other infections in humans. Sources include water, plant rhizospheres, animals, and foods. Studies of the genetic heterogeneity of S. maltophilia strains have identified several new genogroups and suggested adaptation of this pathogen to its habitats. The mechanisms used by S. maltophilia during pathogenesis continue to be uncovered and explored. S. maltophilia virulence factors include use of motility, biofilm formation, iron acquisition mechanisms, outer membrane components, protein secretion systems, extracellular enzymes, and antimicrobial resistance mechanisms. S. maltophilia is intrinsically drug resistant to an array of different antibiotics and uses a broad arsenal to protect itself against antimicrobials. Surveillance studies have recorded increases in drug resistance for S. maltophilia, prompting new strategies to be developed against this opportunist. The interactions of this environmental bacterium with other microorganisms are being elucidated. S. maltophilia and its products have applications in biotechnology, including agriculture, biocontrol, and bioremediation.

54 citations


Journal ArticleDOI
05 May 2021
TL;DR: Over time, the COVID-19 long haulers reported an overall reduction of most symptoms including unrefreshing sleep and post-exertional malaise, but an intensification of neurocognitive symptoms.
Abstract: Our objective was to determine which symptoms among long-hauler COVID-19 patients change over time, and how their symptoms compare to another chronic illness group.278 long-haulers completed two sy...

52 citations


Journal ArticleDOI
TL;DR: This article used repeated evolution in stickleback to identify a large set of genomic loci that change recurrently during colonization of freshwater habitats by marine fish, showing that the same loci used repeatedly in extant populations also show rapid allele frequency changes when new freshwater populations are experimentally established from marine ancestors.
Abstract: Similar forms often evolve repeatedly in nature, raising long-standing questions about the underlying mechanisms. Here, we use repeated evolution in stickleback to identify a large set of genomic loci that change recurrently during colonization of freshwater habitats by marine fish. The same loci used repeatedly in extant populations also show rapid allele frequency changes when new freshwater populations are experimentally established from marine ancestors. Marked genotypic and phenotypic changes arise within 5 years, facilitated by standing genetic variation and linkage between adaptive regions. Both the speed and location of changes can be predicted using empirical observations of recurrence in natural populations or fundamental genomic features like allelic age, recombination rates, density of divergent loci, and overlap with mapped traits. A composite model trained on these stickleback features can also predict the location of key evolutionary loci in Darwin's finches, suggesting that similar features are important for evolution across diverse taxa.

51 citations


Journal ArticleDOI
04 Jan 2021
TL;DR: In this paper, a cross-sectional study used mortality data from the National Vital Statistics System and American Community Survey population estimates to calculate city-level mortality rates for the non-Hispanic Black (Black) population, non- Hispanic White (White) population and total population from January 2016 to December 2018.
Abstract: Importance To address elevated mortality rates and historically entrenched racial inequities in mortality rates, the United States needs targeted efforts at all levels of government. However, few or no all-cause mortality data are available at the local level to motivate and guide city-level actions for health equity within the country’s biggest cities. Objectives To provide city-level data on all-cause mortality rates and racial inequities within cities and to determine whether these measures changed during the past decade. Design, Setting, and Participants This cross-sectional study used mortality data from the National Vital Statistics System and American Community Survey population estimates to calculate city-level mortality rates for the non-Hispanic Black (Black) population, non-Hispanic White (White) population, and total population from January 2016 to December 2018. Changes from January 2009 to December 2018 were examined with joinpoint regression. Data were analyzed for the United States and the 30 most populous US cities. Data analysis was conducted from February to November 2020. Exposure City of residence. Main Outcomes and Measures Total population and race-specific age-standardized mortality rates using 3-year averages, mortality rate ratios between Black and White populations, excess Black deaths, and annual average percentage change in mortality rates and rate ratios. Results The study included 26 295 827 death records. In 2016 to 2018, all-cause mortality rates ranged from 537 per 100 000 population in San Francisco to 1342 per 100 000 in Las Vegas compared with the overall US rate of 759 per 100 000. The all-cause mortality rate among Black populations was 24% higher than among White populations nationally (rate ratio, 1.236; 95% CI, 1.233 to 1.238), resulting in 74 402 excess Black deaths annually. At the city level, this ranged from 6 excess Black deaths in El Paso to 3804 excess Black deaths every year in Chicago. The US rate remained constant during the study period (average annual percentage change, −0.10%; 95% CI, −0.34% to 0.14%;P = .42). The racial inequities in rates for the US decreased between 2008 and 2019 (annual average percentage change, −0.51%; 95% CI, −0.92% to −0.09%;P =0.02). Only 14 of 30 cities (46.7%) experienced improvements in overall mortality rates during the past decade. Racial inequities increased in more cities (6 [20.0%]) than in which it decreased (2 [6.7%]). Conclusions and Relevance In this study, mortality rates and inequities between Black and White populations varied substantially among the largest US cities. City leaders and other health advocates can use these types of local data on the burden of death and health inequities in their jurisdictions to increase awareness and advocacy related to racial health inequities, to guide the allocation of local resources, to monitor trends over time, and to highlight effective population health strategies.

49 citations


Journal ArticleDOI
TL;DR: It is argued that the social constructionist perspective offers important opportunities for understanding the persistence and pervasiveness of generations and that, as an alternative to studying generations, the lifespan perspective represents a better model for understanding how age operates and development unfolds at work.
Abstract: Talk about generations is everywhere and particularly so in organizational science and practice. Recognizing and exploring the ubiquity of generations is important, especially because evidence for their existence is, at best, scant. In this article, we aim to achieve two goals that are targeted at answering the broad question: “What accounts for the ubiquity of generations despite a lack of evidence for their existence and impact?” First, we explore and “bust” ten common myths about the science and practice of generations and generational differences. Second, with these debunked myths as a backdrop, we focus on two alternative and complementary frameworks—the social constructionist perspective and the lifespan development perspective—with promise for changing the way we think about age, aging, and generations at work. We argue that the social constructionist perspective offers important opportunities for understanding the persistence and pervasiveness of generations and that, as an alternative to studying generations, the lifespan perspective represents a better model for understanding how age operates and development unfolds at work. Overall, we urge stakeholders in organizational science and practice (e.g., students, researchers, consultants, managers) to adopt more nuanced perspectives grounded in these models, rather than a generational perspective, to understand the influence of age and aging at work.

Proceedings ArticleDOI
TL;DR: In this paper, the authors proposed a new metric that can address the limitations of existing metrics to evaluate popularity bias mitigation when they want to assess these algorithms from the users' perspective and also presented an effective approach that mitigates popularity bias from the user-centered point of view.
Abstract: Recommendation and ranking systems are known to suffer from popularity bias; the tendency of the algorithm to favor a few popular items while under-representing the majority of other items. Prior research has examined various approaches for mitigating popularity bias and enhancing the recommendation of long-tail, less popular, items. The effectiveness of these approaches is often assessed using different metrics to evaluate the extent to which over-concentration on popular items is reduced. However, not much attention has been given to the user-centered evaluation of this bias; how different users with different levels of interest towards popular items are affected by such algorithms. In this paper, we show the limitations of the existing metrics to evaluate popularity bias mitigation when we want to assess these algorithms from the users' perspective and we propose a new metric that can address these limitations. In addition, we present an effective approach that mitigates popularity bias from the user-centered point of view. Finally, we investigate several state-of-the-art approaches proposed in recent years to mitigate popularity bias and evaluate their performances using the existing metrics and also from the users' perspective. Our experimental results using two publicly-available datasets show that existing popularity bias mitigation techniques ignore the users' tolerance towards popular items. Our proposed user-centered method can tackle popularity bias effectively for different users while also improving the existing metrics.

Journal ArticleDOI
TL;DR: The COVID-19 pandemic led to widespread use of telemedicine and highlighted its importance in improving access to sleep care and advocating for sleep health as discussed by the authors, and this update incorporates the lessons le...
Abstract: The COVID-19 pandemic led to widespread use of telemedicine and highlighted its importance in improving access to sleep care and advocating for sleep health. This update incorporates the lessons le...

Journal ArticleDOI
TL;DR: Subject to extensive stress testing, the results show that using any mixture of these resilience capabilities increases the retail network's resilience while considerably decreasing post-disruption costs.

Proceedings ArticleDOI
21 Jun 2021
TL;DR: In this paper, a new metric was proposed to evaluate the effectiveness of the existing popularity bias mitigation methods from the user-centered point of view, and the proposed method can tackle popularity bias effectively for different users.
Abstract: Recommendation and ranking systems are known to suffer from popularity bias; the tendency of the algorithm to favor a few popular items while under-representing the majority of other items. Prior research has examined various approaches for mitigating popularity bias and enhancing the recommendation of long-tail, less popular, items. The effectiveness of these approaches is often assessed using different metrics to evaluate the extent to which over-concentration on popular items is reduced. However, not much attention has been given to the user-centered evaluation of this bias; how different users with different levels of interest towards popular items are affected by such algorithms. In this paper, we show the limitations of the existing metrics to evaluate popularity bias mitigation when we want to assess these algorithms from the users’ perspective and we propose a new metric that can address these limitations. In addition, we present an effective approach that mitigates popularity bias from the user-centered point of view. Finally, we investigate several state-of-the-art approaches proposed in recent years to mitigate popularity bias and evaluate their performances using the existing metrics and also from the users’ perspective. Our experimental results using two publicly-available datasets show that existing popularity bias mitigation techniques ignore the users’ tolerance towards popular items. Our proposed user-centered method can tackle popularity bias effectively for different users while also improving the existing metrics.

Journal ArticleDOI
TL;DR: In this article, the authors investigate macro-societal state fragility and stability in the context of conflict, poverty and weak institutions, and show that conflicts, poverty, weak institutions create hardships for people, societies and economies on a global basis.
Abstract: Conflict, poverty and weak institutions create hardships for people, societies and economies on a global basis. We investigate macro-societal state fragility and stability. Within this context, and...

Journal ArticleDOI
TL;DR: The authors found from a synthesis of tree species in North America that climate-condition interactions dominate responses through two pathways: effects of growth that depend on climate, and effects of climate that depends on tree size.
Abstract: Indirect climate effects on tree fecundity that come through variation in size and growth (climate-condition interactions) are not currently part of models used to predict future forests. Trends in species abundances predicted from meta-analyses and species distribution models will be misleading if they depend on the conditions of individuals. Here we find from a synthesis of tree species in North America that climate-condition interactions dominate responses through two pathways, i) effects of growth that depend on climate, and ii) effects of climate that depend on tree size. Because tree fecundity first increases and then declines with size, climate change that stimulates growth promotes a shift of small trees to more fecund sizes, but the opposite can be true for large sizes. Change the depresses growth also affects fecundity. We find a biogeographic divide, with these interactions reducing fecundity in the West and increasing it in the East. Continental-scale responses of these forests are thus driven largely by indirect effects, recommending management for climate change that considers multiple demographic rates.

Journal ArticleDOI
TL;DR: In this article, the authors combined global fecundity data, including a substantial representation of large trees, and compared size-fecundity relationships against traditional allometric scaling with diameter and two models based on crown architecture.
Abstract: Despite its importance for forest regeneration, food webs, and human economies, changes in tree fecundity with tree size and age remain largely unknown. The allometric increase with tree diameter assumed in ecological models would substantially overestimate seed contributions from large trees if fecundity eventually declines with size. Current estimates are dominated by overrepresentation of small trees in regression models. We combined global fecundity data, including a substantial representation of large trees. We compared size-fecundity relationships against traditional allometric scaling with diameter and two models based on crown architecture. All allometric models fail to describe the declining rate of increase in fecundity with diameter found for 80% of 597 species in our analysis. The strong evidence of declining fecundity, beyond what can be explained by crown architectural change, is consistent with physiological decline. A downward revision of projected fecundity of large trees can improve the next generation of forest dynamic models.

Journal ArticleDOI
05 Jan 2021
TL;DR: In this paper, three Black women in HCI and CSCW share their experiences of being Black women academics enduring a global pandemic that is disportionately impacting the Black community while simultaneously experiencing the civil unrest due to racial injustice and police brutality.
Abstract: In this paper, three Black women in HCI and CSCW share their experiences of being Black women academics enduring a global pandemic that is disportionately impacting the Black community while simultaneously experiencing the civil unrest due to racial injustice and police brutality. Using Black feminist epistemologies as a theoretical framework and auto-ethnography and testimonial authority as both methodology and epistemic resistance, the authors exercise epistemic agency to testify to their lived intersectional experiences and the various fronts on which they fight to be seen, to be heard, and to live. Additionally, they advocate for more inclusionary policies of Black women and other marginalized populations within the CSCW and HCI communities. We conclude with a call to action for both communities to: 1) stand in solidarity with Blacks in computing; and 2) acknowledge, disavow, and dismantle Whiteness and oppressive power structures in the field of computing, specifically HCI and CSCW.


Journal ArticleDOI
TL;DR: In this paper, the authors evaluated the impact of didactic videos and service user testimonial videos on mental illness stigma among medical students in Nepal and found that didactic and service-user videos were associated with decreased stigma when content addressed only depression.
Abstract: This study evaluated the impact of didactic videos and service user testimonial videos on mental illness stigma among medical students. Two randomized controlled trials were conducted in Nepal. Study 1 examined stigma reduction for depression. Study 2 examined depression and psychosis. Participants were Nepali medical students (Study 1: n = 94, Study 2: n = 213) randomized to three conditions: a didactic video based on the mental health Gap Action Programme (mhGAP), a service user video about living with mental illness, or a control condition with no videos. In Study 1, videos only addressed depression. In Study 2, videos addressed depression and psychosis. In Study 1, both didactic and service user videos reduced stigma compared to the control. In Study 2 (depression and psychosis), there were no differences among the three arms. When comparing Study 1 and 2, there was greater stigma reduction in the service user video arm with only depression versus service user videos describing depression and psychosis. In summary, didactic and service user videos were associated with decreased stigma when content addressed only depression. However, no stigma reduction was seen when including depression and psychosis. This calls for considering different strategies to address stigma based on types of mental illnesses. ClinicalTrials.gov identifier: NCT03231761.

Journal ArticleDOI
28 Jan 2021
TL;DR: In this paper, the authors updated the US prevalence and economic impact estimates of the 2015 National Academy of Medicine report on myalgic encephalomyelitis / chronic fatigue syndrome (ME/CFS), taking into account growt...
Abstract: We update the US prevalence and economic impact estimates of the 2015 National Academy of Medicine report on myalgic encephalomyelitis / chronic fatigue syndrome (ME/CFS), taking into account growt...

Journal ArticleDOI
TL;DR: In this article, the authors present a perspective on the state of literature as well as suggestions for new contributions to entrepreneurship research in the area of crowd-funded opportunities in the field of entrepreneurship.
Abstract: This editorial outlines our perspective on the state of literature as well as suggestions for new contributions to entrepreneurship research in the area of crowd-funded opportunities. Our aim is, f...

Journal ArticleDOI
TL;DR: In this paper, the authors contribute to the resource dependence theory and corporate political activity literatures by distinguishing dependence from uncertainty and explaining how two different types of uncerta-tional uncertainty can be distinguished.
Abstract: This paper contributes to the resource dependence theory and corporate political activity literatures by distinguishing dependence from uncertainty and explaining how two different types of uncerta...

Journal ArticleDOI
TL;DR: In this paper, the authors contribute to the discussions on how COVID-19 affects the world of qualitative nursing research in irrefutable ways, and they also provide practical tips for qualitative researchers, including an exemplar of conducting qualitative research among vulnerable nurses.
Abstract: With COVID-19 affecting all types of research, the authors of this article contribute to the discussions on how COVID-19 affects the world of qualitative nursing research in irrefutable ways. Underrepresented and vulnerable populations are faced with higher rates and severity of COVID-19, heightening the need to better address their health needs, which require their voices to be heard. Moreover, nurses' perspectives on practicing during COVID-19 are needed. These nurses are vulnerable and their voices must be heard. Qualitative research methodology is advantageous to bringing attention to the lived experience of others as they unfold. Thus, we offer suggestions to aid in the collection and interpretation of qualitative data among vulnerable populations. We also provide practical tips for qualitative researchers, including an exemplar of conducting qualitative research among vulnerable nurses in light of COVID-19.

Journal ArticleDOI
TL;DR: In this article, the authors reconcile the growing college-for-all norm with the diverse needs of students in urban settings, and what is the impact on Black studi cation on urban areas.
Abstract: How do educators reconcile the growing college-for-all norm—the notion that all students should pursue college—with the diverse needs of students in urban settings? What is the impact on Black stud...

Journal ArticleDOI
Kenshu Shimada1
TL;DR: Otodus megalodon (Lamniformes: Otodontidae) is a gigantic late Neogene shark that lived nearly worldwide in tropical-temperate regions as discussed by the authors.
Abstract: Otodus megalodon (Lamniformes: Otodontidae) is a gigantic late Neogene shark that lived nearly worldwide in tropical-temperate regions. Its gigantic teeth have captivated imaginations of the scient...

Journal ArticleDOI
TL;DR: The findings suggest that IS engineers’ attitude towards PbD implementation significantly impacts both their behavioral intention and their implementing behavior, and for the first time that IS engineer’s attitude towardsPbD usage is the key factor for P bD implementation.

Journal ArticleDOI
TL;DR: The empirical study shows that the DMC-EVT model outperforms the alternative copula models and confirms the existence of financial contagion in the forex market during the 2007-2009 global financial crisis, and finds that wealth constraints are the contagion channel during the crisis.

Journal ArticleDOI
TL;DR: Investigation of differences in emotional experiences and coping strategies between younger and older adults during the 2019 pandemic indicated that older adults experienced less stress and less negative affect and used greater problem-focused coping and less avoidant coping in response to the pandemic than younger adults.
Abstract: BACKGROUND AND OBJECTIVES Advanced age is generally associated with improved emotional well-being, but the coronavirus 2019 pandemic unleashed a global stressor that gravely threatened the physical well-being and ostensibly challenged the emotional well-being of older adults disproportionately. The current study investigated differences in emotional experiences and coping strategies between younger and older adults during the pandemic, and whether these differences were accounted for by age differences in appraisal of the pandemic. RESEARCH DESIGN AND METHODS We asked younger (n = 181) and older (n = 176) adult participants to report their stress, appraisals of the pandemic, emotions, and the ways in which they were coping with the pandemic. RESULTS Results indicated that older adults experienced less stress and less negative affect and used greater problem-focused coping and less avoidant coping in response to the pandemic than younger adults. Furthermore, age differences in affect and coping were partially accounted for by age differences in appraisals of the pandemic. DISCUSSION AND IMPLICATIONS Despite their objectively higher risk of illness and death due to the pandemic, older adults experienced less negative affect and used more agentic coping strategies than younger adults.