bluuebunny/crossref_metadata_2025_split huggingface dataset:
Clinical management and mortality among COVID-19 cases in sub-Saharan Africa: A retrospective study from Burkina Faso and simulated case analysis
Authors: Skrip Laura , Derra Karim , Kaboré Mikaila , Noori Navideh , Gansané Adama , Valéa Innocent , Tinto Halidou , Brice Bicaba W. , Van Gordon Mollie , Hagedorn Brittany , Hien Hervé , Althouse Benjamin M. , Wenger Edward A. , Ouédraogo André Lin 
Published: June 2020

AbstractBackgroundAbsolute numbers of COVID-19 cases and deaths reported to date in the sub-Saharan Africa (SSA) region have been significantly lower than those across the Americas, Asia, and Europe. As a result, there has been limited information about the demographic and clinical characteristics of deceased cases in the region, as well as the impacts of different case management strategies.MethodsData from deceased cases reported across SSA through May 10, 2020 and from hospitalized cases in Burkina Faso through April 15, 2020 were analyzed. Demographic, epidemiological, and clinical information on deceased cases in SSA was derived through a line-list of publicly available information and, for cases in Burkina Faso, from aggregate records at the Center Hospitalier Universitaire de Tengandogo in Ouagadougou. A synthetic case population was derived probabilistically using distributions of age, sex, and underlying conditions from populations of West African countries to assess individual risk factors and treatment effect sizes. Logistic regression analysis was conducted to evaluate the adjusted odds of survival for patients receiving oxygen therapy or convalescent plasma, based on therapeutic effectiveness observed for other respiratory illnesses.ResultsAcross SSA, deceased cases for which demographic data are available have been predominantly male (63/103, 61.2%) and over 50 years of age (59/75, 78.7%). In Burkina Faso, specifically, the majority of deceased cases either did not seek care at all or were hospitalized for a single day (59.4%, 19/32); hypertension and diabetes were often reported as underlying conditions. After adjustment for sex, age, and underlying conditions in the synthetic case population, the odds of mortality for cases not receiving oxygen therapy was significantly higher than those receiving oxygen, such as due to disruptions to standard care (OR: 2.07; 95% CI: 1.56 – 2.75). Cases receiving convalescent plasma had 50% reduced odds of mortality than those who did not (95% CI: 0.24 – 0.93).ConclusionInvestment in sustainable production and maintenance of supplies for oxygen therapy, along with messaging around early and appropriate use for healthcare providers, caregivers, and patients could reduce COVID-19 deaths in SSA. Further investigation into convalescent plasma is warranted, as data on its effectiveness specifically in treating COVID-19 becomes available. The success of supportive or curative clinical interventions will depend on earlier treatment seeking, such that community engagement and risk communication will be critical components of the response.
Dynamics of COVID-19 under social distancing measures are driven by transmission network structure
Authors: Nande Anjalika , Adlam Ben , Sheen Justin , Levy Michael Z. , Hill Alison L. 
Published: June 2020

AbstractIn the absence of pharmaceutical interventions, social distancing is being used worldwide to curb the spread of COVID-19. The impact of these measures has been inconsistent, with some regions rapidly nearing disease elimination and others seeing delayed peaks or nearly flat epidemic curves. Here we build a stochastic epidemic model to examine the effects of COVID-19 clinical progression and transmission network structure on the outcomes of social distancing interventions. Our simulations show that long delays between the adoption of control measures and observed declines in cases, hospitalizations, and deaths occur in many scenarios. We find that the strength of within-household transmission is a critical determinant of success, governing the timing and size of the epidemic peak, the rate of decline, individual risks of infection, and the success of partial relaxation measures. The structure of residual external connections, driven by workforce participation and essential businesses, interacts to determine outcomes. We suggest limited conditions under which the formation of household “bubbles” can be safe. These findings can improve future predictions of the timescale and efficacy of interventions needed to control second waves of COVID-19 as well as other similar outbreaks, and highlight the need for better quantification and control of household transmission.Author SummarySocial distancing is the main tool used to control COVID-19, and involves reducing contacts that could potentially transmit infection with strategies like school closures, work-from-home policies, mask-wearing, or lockdowns. These measures have been applied around the world, but in situations where they have suppressed infections, the effect has not been immediate or consistent. In this study we use a mathematical model to simulate the spread and control of COVID-19, tracking the different settings of person-to-person contact (e.g. household, school, workplace) and the different clinical stages an infected individual may pass through before recovery or death. We find that there are often long delays between when strong social distancing policies are adopted and when cases, hospitalizations, and deaths peak and begin to decline. Moreover, we find that the amount of transmission that happens within versus outside the household is critical to determining when social distancing can be effective and the delay until the epidemic peak. We show how the interaction between unmitigated households spread and residual external connections due to essential activities impacts individual risk and population infection levels. These results can be used to better predict the impact of future interventions to control COVID-19 or similar outbreaks
Event- and self-triggered control of attitude coordination to multi-spacecraft system
Authors: Zhang Chengxi , Wu Jin , Dai Ming-Zhe , Li Bo , Wang Mingjiang 
Published: June 2020

Purpose
The purpose of this paper is to investigate the attitude cooperation control of multi-spacecraft with in-continuous communication.

Design/methodology/approach
A decentralized state-irrelevant event-triggered control policy is proposed to reduce control updating frequency and further achieve in-continuous communication by introducing a self-triggered mechanism.

Findings
Each spacecraft transmits data independently, without the requirement for the whole system to communicate simultaneously. The local predictions and self-triggered mechanism avoid continuous monitoring of the triggering condition.

Research limitations/implications
This investigation is suitable for small Euler angle conditions.

Practical implications
The control policy based on event-triggered communication can provide potential solutions for saving communication resources.

Originality/value
This investigation uses event- and self-triggered policy to achieve in-communication for the multi-spacecraft system.
JPEG 2000: guide for digital libraries
Authors: Barina David , Klima Ondrej 
Published: June 2020

Purpose
The joint photographic experts group (JPEG) 2000 image compression system is being used for cultural heritage preservation. The authors are aware of over a dozen of big memory institutions worldwide using this format. This paper aims to review and explain choices for end users to help resolve trade-offs that these users are likely to encounter in practice.

Design/methodology/approach
The JPEG 2000 format is quite complex and therefore sometimes considered as a preservation risk. A lossy compression is governed by a number of parameters that control compression speed and rate-distortion trade-off. Their inappropriate adjustment may fairly easily lead to sub-optimal compression performance. This paper provides general guidelines for selecting the most appropriate parameters for a specific application.

Findings
This paper serves as a guide for the preservation of digital heritage in cultural heritage institutions, including libraries, archives and museums.

Originality/value
This paper serves as a guide for the preservation of digital heritage in cultural heritage institutions, including libraries, archives and museums.
Barriers to adopting lean construction in the construction industry: a literature review
Authors: Albalkhy Wassim , Sweis Rateb 
Published: June 2020

Purpose
The purpose of this paper is to identify and theoretically explain the general barriers to adopting lean construction practices in the construction industry regardless of the country or the company size or specialization, and to suggest future research studies in this field.

Design/methodology/approach
Systematic literature review was conducted to identify and explain the list of the barriers from scientific sources that were published before May 2018.

Findings
Twenty-nine barriers were identified and explained, and a proposed model to classify the sources of the barriers was chosen. Seventeen barriers were classified as internal environment-related barriers, five were labor-related, three were materials-related and four were exogenous barriers. In addition, some directions for the future research studies were suggested.

Research limitations/implications
The barriers that are related to the advanced levels of lean construction (LC) implementations, to a specific location or to a specific LC tool were excluded.

Originality/value
This review will help to increase the understanding of the new concept of LC and might help to encourage the adoption of LC practices. Also, it might be useful for identifying the strategies to achieve successful application of these practices.
Team dynamics within activity-based working
Authors: Divett Megan 
Published: June 2020

Purpose
This paper aims to evaluate perceptions of leaders and team members on productivity, satisfaction and leader-led team dynamics within an activity-based, flexible environment compared to an open plan workplace.

Design/methodology/approach
This study uses cross-sectional (N = 1,275) and longitudinal survey data (N = 138) collected from three offices in Australia. Baseline responses were collected 3–12 months prior to the transition into a new environment and comparison responses were collected after at least three months of working in the new environment. Paired sample t-tests and linear regression were used.

Findings
Team members were more satisfied and felt more productive within the activity-based working (ABW) environment compared to the open plan workplace. Leaders were more satisfied and felt team productivity improved, yet individual productivity for leaders remained the same. Occupants felt the key drivers of productivity were team Interaction and decision-making.

Research limitations/implications
This study focused on one activity-based building based in Australia that was consciously designed for individual focus, team working and cross-team collaboration. This style of workplace may not be representative of all activity-based environments.

Originality/value
Most research into ABW has relied on cross-sectional data. This study also adopts a within group, longitudinal approach to directly compare the perceptions of the same individuals over time. Activity-based environments are changing the way we think of leaders and the way they encourage productivity. This study showed that despite relinquishing an office, leaders were more satisfied and equally productive within an activity-based environment. The study also showed that teams realise greater productivity by focussing on team interaction and effective decision-making.
Public health challenges during the COVID-19 outbreak in Nepal: a commentary
Authors: Sharma Sharmistha , Bhatta Jeevan 
Published: June 2020

PurposeThe purpose of this paper is to depict the current scenario of coronavirus diseases 2019 (COVID-19) in Nepal, how the government is tackling this pandemic as well as look at the public health challenges that Nepal is facing and might face in the future.Design/methodology/approachThis paper is a viewpoint of COVID-19 activities conducted in Nepal.FindingsNepal is vulnerable to COVID-19, as it shares borders with China and India. Cases have started to be seen in different parts of Nepal. Government of Nepal has started various measures to control the spread of the virus such as deploying health workers, information sharing via different mediums. However, there are still many challenges that the government and public health officials need to be concerned about as well.Originality/valueThis paper provides information about the situation of COVID-19 in Nepal, how the government is handling, and public health challenges that may arise. This paper can be beneficial for further public health interventions.
Exploring mental health carers’ caregiving experiences in France
Authors: De Jesus Nancy Santiago , Maurice Aurelie 
Published: June 2020

Purpose
France, once a pioneer in psychiatry, is now sinking as its population faces major mental health challenges. This includes the 12 Million French individuals with psychiatric conditions, the lack of appropriate structures and the shortage of skilled mental health professionals, but it also leaves families in critical situations. The purpose of this study is to explore the carers’ caregiving experiences and to suggest ways to organise educational programmes to support mental health carers in France.

Design/methodology/approach
The research was conducted from January 2018 to November 2019. It included French carers of patients with mental conditions. Recorded semi-structured interviews were used and findings were analysed through an inductive thematic analysis and regrouped into key themes.

Findings
Participants had overwhelming negative representations of “mental illness”. The fact that they were excluded from participating in the patient’s health management further added to their misconceptions around mental disability, it limited their communication with their family and amplified their burdens.

Research limitations/implications
There is an urgent need for carer empowerment; carers should be included in educational programmes, they should benefit from French Government subsidies and social-network assistance and receive quality assistance by trained mental health professionals. The critical situation of carers can only be addressed by combining these three steps and through the action of appropriate actors in the field of mental health, thus alleviating the current paradigm of psychiatric care in France.

Originality/value
Thousands of research papers regarding carers have been published in other countries. In addition yet, to the knowledge, only a few investigations on French mental health carers have been conducted to this day. The singularity of this research lies in the rare individual interviews, which provided us with first-hand testimonies of mental health carers in France. This data could be of vital aid for professionals and for policymakers when advocating for better support of carers in mental health.
Leader honesty/humility and subordinate organizational citizenship behavior: a case of too-much-of-a-good-thing?
Authors: Ete Ziya , Sosik John J. , Cheong Minyoung , Chun Jae Uk , Zhu Weichun , Arenas Fil J. , Scherer Joel A. 
Published: June 2020

PurposeOn the basis of theories of social cognition and moral identity and the meta-theoretical principle of “too-much-of-a-good-thing,” the purpose of this study is to develop and test a model that explains when and why leader honesty/humility promotes subordinate organizational citizenship behavior directed at individuals (OCBI) as mediated through subordinate moral identity centrality.Design/methodology/approachIn this field study, with online surveys, multisource data were collected from 218 United States Air Force officers and their subordinates. Data were analyzed with MEDCURVE SPSS macro tools.FindingsA nonlinear indirect effect of leader honesty/humility on subordinate OCBI through subordinate moral identity centrality was found. This conditional indirect effect occurred through a curvilinear (inverted U-shape) relationship between leader honesty/humility and subordinate moral identity centrality and a positive linear relationship between subordinate moral identity centrality and OCBI.Research limitations/implicationsCross-sectional data were collected. Future research might replicate findings using experimental and longitudinal designs.Practical implicationsRecruiting and selecting leaders who possess a moderate level of honesty/humility may serve as the first step in producing prosocial behavior during social interactions with subordinates.Originality/valueThis study extends the literature on character and leadership by applying the too-much-of-a-good-thing principle to empirically test the complex nature of the relationship between leader honesty/humility and subordinate OCBI as mediated through subordinate moral identity centrality.
The impact of service innovation on firm performance: a meta-analysis
Authors: Feng Changli , Ma Ruize , Jiang Lin 
Published: June 2020

PurposeWith the rise of service economy, many companies are attempting to gain a competitive advantage through service innovation. However, the existing research has not drawn consistent conclusions about the relationship between service innovation and firm performance. Hence, the purpose of this paper is to provide a quantitative review on the service innovation-performance relationship based on research findings reported in the extant literature.Design/methodology/approachStudies from 46 peer-reviewed articles were sampled and analyzed. A meta-analytic approach was adopted to conduct a quantitative review on the relationship between service innovation and firm performance, and the effects of any potential moderators were further explored.FindingsThe results found that service innovation has a significant positive impact on firm performance. Additionally, the relationship between service innovation and firm performance is influenced by measurement moderators (economic region and performance measurement), and contextual moderators (firm type, innovation type, customer factors and attitudes toward risk).Originality/valueThe meta-analysis has been used to explore the relationship between service innovation and firm performance, and the findings have contributed to the literature on service innovation, as well as providing future research directions.
Weak evidence for strong pandemic interventions: a 2019 WHO warning for the current COVID-19 crisis
Authors: Roth Steffen 
Published: June 2020

Purpose
Social distancing. Travel bans. Confinement. The purpose of this paper is to document that more than 50% of the world population is affected by World Health Organization (WHO) recommendations for the 2020 coronavirus crisis. The WHO admits that the evidence quality for the effectiveness of these recommendations is low or very low.

Design/methodology/approach
This self-contradiction is confirmed by a WHO document published in October 2019 as well as supporting documentation from the European Centre for Disease Prevention and Control.

Findings
This viewpoint concludes that an obvious resolution of this self-contradiction would be to limit restrictions and interventions to those for whose effectiveness the WHO’s document reported that there was at least moderate evidence.

Originality/value
A shift of focus is suggested from discussions on the commensurability and social costs of anti-COVID-19 interventions to their actual effectiveness.
Rethinking bibliographic utilities for library consortia
Authors: Odede Israel 
Published: June 2020

PurposeThe paper aims to critically examine the bibliographic utility as a roadmap to increase library consortia and provide an insight into a new library consortia strategy that integrates librarians into a system of sharing both resources and knowledge.Design/methodology/approachThis study adopted a literature review approach with a focus on bibliographic utility as a necessary prerequisite for effective library consortia, which is a paradigm shift from the concept of individual ownership to a collective access of distributed network resources and knowledge.FindingsThe reviewed literature indicated that significant bibliographic utilities and integrated library systems are factors that shaped and developed consortia activities in libraries.Originality/valueThe bibliographic utility has limited literature, and a few published scholarly studies have combined bibliographic utility and library consortia as strategies to share resources and knowledge
Genistein supplementation improves some cardiovascular risk factors in postmenopausal women with Type 2 diabetes mellitus
Authors: Braxas Hassan , Rafraf Maryam , Karimi Hasanabad Saadat , Asghari Jafarabadi Mohammad 
Published: June 2020

Purpose
Type 2 diabetes mellitus (T2DM) is a worldwide health problem. Blood pressure (BP) and inflammation are well-established risk factors for the cardiovascular complications of T2DM. Genistein is known to improve endothelial dysfunction. The purpose of this study is to investigate the effects of genistein supplementation on BP, high-sensitive C-reactive protein (hs-CRP) and homocysteine (Hcy) levels in postmenopausal women with T2DM.

Design/methodology/approach
This randomized, double-blind, placebo-controlled clinical trial is conducted on postmenopausal women with T2DM. A total of 54 subjects aged between 47 and 69 years are divided into two groups. Participants in the genistein group (n = 28) are given two genistein capsules (each capsule contained 54 mg genistein) and those in the placebo group (n = 26) received two placebo capsules (each capsule contained 54 mg maltodextrin) daily for 12 weeks. General characteristics, BP, hs-CRP and Hcy levels are measured at the baseline and at the end of the trial.

Findings
Genistein supplementation resulted in a significant reduction in systolic BP (SBP) (p < 0.001), diastolic BP (DBP) (p = 0.020), mean arterial pressure (MAP) (p < 0.001), serum levels of hs-CRP (p = 0.005) and Hcy (p = 0.001) in genistein group compared with placebo group at the end of the study. Significant decreases are also found in SBP by 5.4%, p < 0.001, DBP by 6.7%, p < 0.001, MAP by 6.2%, p < 0.001, serum levels of hs-CRP by 47.0%, p = 0.015 and Hcy by 18.4%, p < 0.001 in the genistein supplemented group. No significant changes are observed in terms of all post-intervention values in the placebo group.

Originality/value
Genistein administration improved BP, hs-CRP and Hcy levels in postmenopausal women with T2DM and may be useful in control of some CVD risk factors in these subjects.
Mandatory dividend and corporate investment: a multi-country analysis
Authors: Vancin Daniel , Kirch Guilherme 
Published: June 2020

Purpose
This paper aims to empirically verify the impact of the mandatory dividend law on the investment of publicly traded companies.

Design/methodology/approach
The sample includes 212,595 observations from publicly traded companies from 47 different countries over the period from 2000 to 2016. The authors estimated a regression model by panel data methods to show the impact of the mandatory dividend on firm’s investment, more specifically in their sensitivities of investment to cash flow and to growth opportunities. In addition, the average treatment effect on the treated was estimated through sample matching.

Findings
The results indicate that the mandatory dividend have a direct and indirect impact on corporate investment.

Originality/value
Legislators and economic agents can use the results of the present research to evaluate the continuity or implementation of this legal mechanism (mandatory dividend) to evaluate economic moments favorable to its use or to create different legal rules to smooth the impact of this mechanism on the investment of companies.