Browse publications by year: 2021

  1. Ebekozien A, Aigbavboa C
    Sustain Cities Soc, 2021 Jun;69:102803.
    PMID: 36568854 DOI: 10.1016/j.scs.2021.102803
    Fourth industrial revolution (4IR) technologies have been proved as successful platforms to communicate and visualise construction projects within team meetings. These techniques possibly can enhance compliance with Covid-19 rules on sites. How far concerning Nigerian construction contractors in the use of 4IR technologies are yet to receive in-depth studies. Therefore, this paper offers a collective insight into the issues affecting construction firms from Covid-19 regarding lockdown rules and the role of 4IR technologies. Given the unexplored nature of the problem, a virtual face-to-face type of qualitative research method was employed. Twelve semi-structured interviews from selected construction firms and consultant experts were engaged and collated data analysed via a thematic approach. Findings group the 4IR technologies into smart construction site, simulation and modelling, and digitisation and virtualisation in Nigeria's context, and majority of the 4IR technologies can be useful to enhance Covid-19 compliance. Reluctant to adopt, high implementation cost, inadequate knowledge management, resistance to change, among others emerged as the factors hindering 4IR technologies usage. Findings will strengthen and provide a rich insight into the impact of Covid-19 on construction sites and contribute towards informing key stakeholders to create an enabling environment for the implementation of 4IR technologies on site.
  2. Sifat I, Ghafoor A, Ah Mand A
    J Behav Exp Finance, 2021 Jun;30:100498.
    PMID: 36570102 DOI: 10.1016/j.jbef.2021.100498
    We report new evidence that speculation in energy and precious metal futures are more prevalent in crisis periods and even more so during the COVID-19 pandemic. In contrast, agricultural futures attract more hedging pressure. Post-GFC patterns mirror the 1980s' recessions. Using quantile regression on a long-horizon sample we also find that speculative pressure generally coincides with abnormal returns in normal circumstances but not in the current pandemic. Instead, volatility is strongly and often non-linearly associated with speculation across instruments.
  3. Bassett HR, Lau J, Giordano C, Suri SK, Advani S, Sharan S
    World Dev, 2021 Jul;143:105473.
    PMID: 36567900 DOI: 10.1016/j.worlddev.2021.105473
    The ongoing COVID-19 pandemic and associated mitigation measures have disrupted global systems that support the health, food and nutrition security, and livelihoods of billions of people. These disruptions have likewise affected the small-scale fishery (SSF) sector, disrupting SSF supply chains and exposing weaknesses in the global seafood distribution system. To inform future development of adaptive capacity and resilience in the sector, it is important to understand how supply chain actors are responding in the face of a macroeconomic shock. Comparing across seven SSF case studies in four countries, we explore how actors are responding to COVID-19 disruptions, identify constraints to adaptive responses, and describe patterns of disruption and response across cases. In all cases examined, actors shifted focus to local and regional distribution channels and particularly drew on flexibility, organization, and learning to re-purpose pre-existing networks and use technology to their advantage. Key constraints to reaching domestic consumers included domestic restrictions on movement and labor, reduced spending power amongst domestic consumers, and lack of existing distribution channels. In addition, the lack of recognition of SSFs as essential food-producers and inequities in access to technology hampered efforts to continue local seafood supply. We suggest that the initial impacts from COVID-19 highlight the risks in of over-reliance on global trade networks. The SSFs that were able to change strategies most successfully had local organizations and connections in place that they leveraged in innovative ways. As such, supporting local and domestic networks and flexible organizations within the supply chain may help build resilience in the face of future macroeconomic shocks. Importantly, bolstering financial wellbeing and security within the domestic market both before and during such large-scale disruptions is crucial for supporting ongoing supply chain operations and continued food provision during macroeconomic crises.
  4. Ahmad NS, Hussain Z, Abd Hamid HS, Khairani AZ
    Int J Disaster Risk Reduct, 2021 Sep;63:102456.
    PMID: 36567870 DOI: 10.1016/j.ijdrr.2021.102456
    Covid-19 pandemic has created crises among some Malaysians. The crises have both opportunity and threat impacts. Without proper intervention, some people will develop stress, anxiety, and depression. This study aims to explore the emotional anxiety that exists in the society due to Covid-19 pandemic and the roles of social media and counselling support in reducing anxiety among Malaysians. This quantitative research involved online survey throughout the country. The online survey is administered during the First Phase and the Second Phase of Movement Control Order (MCO). The survey contains 13 items which cover three domain: i) anxiety, ii) roles of social media, and iii) roles of counselling support in reducing anxiety among members of the society. There were 8375 respondents from various age groups, locations, as well as economic and educational statuses involved in the study. Data were analysed using descriptive and inferential analysis. Majority of 7233 (86.6%) respondents felt anxious due to Covid-19 pandemic. A total of 7871 respondents (94%) followed the latest updates on Covid-19 to reduce their anxiety. They used social media such as Facebook, Instagram and Twitter to gather information and follow the updates through television and press conference. A total of 5251 respondents (62.7%) were aware of the counselling support provided during the MCO, and 4603 respondents (55%) felt comfortable to have counselling support by phone. The findings will contribute to knowledge on the society's emotional anxiety in facing Covid-19. It reflects the actual situation happened in Malaysia during Covid-19 and MCO.
  5. Adelodun B, Kareem KY, Kumar P, Kumar V, Choi KS, Yadav KK, et al.
    J Clean Prod, 2021 Oct 10;318:128451.
    PMID: 36570877 DOI: 10.1016/j.jclepro.2021.128451
    The existing finite natural resources have witnessed unsustainable usage in the past few years, especially for food production, with accompanying environmental devastation and ecosystem damage. Regrettably, the global population and consumption demands are increasing ceaselessly, leading to the need for more resources for food production, which could potentially aggravate the sustainability and ecosystem degradation issues, while stimulating drastic climate change. Meanwhile, the unexpected emergence of the COVID-19 pandemic and some implemented measures to combat its spread disrupted agricultural activities and the food supply chain, which also led to a reduction in ecosystem carbonization. This study sets out to explore policy framework and selected feasible actions that are being adopted during the COVID-19 pandemic, which could potentially reduce the emissions even after the pandemic to promote a resilient and sustainable agri-food system. In this study, we reviewed 27 articles that focus on the current state of the agri-food system in light of the COVID-19 pandemic and its impact on the decarbonization of the agroecosystem. This review has taken the form of a systematic methodology in analyzing the adoption and implementation of various measures to mitigate the spread of COVID-19 on the impact of the agri-food system and reduction in ecosystem degradation. Up to 0.3 Mt of CO2 reduction from the agri-food system alone was reportedly achieved during the first 6 months of the pandemic in 23 European countries. The various adopted measures indicate that the circular economy approach is a panacea to achieve the needed sustainability in the agri-food system. Also, it dictates a need for a paradigm change towards improvement on localized food production that promotes sustainable production and consumption.
  6. Okposo NI, Adewole MO, Okposo EN, Ojarikre HI, Abdullah FA
    Chaos Solitons Fractals, 2021 Nov;152:111427.
    PMID: 36569784 DOI: 10.1016/j.chaos.2021.111427
    In this work, a mathematical model consisting of a compartmentalized coupled nonlinear system of fractional order differential equations describing the transmission dynamics of COVID-19 is studied. The fractional derivative is taken in the Atangana-Baleanu-Caputo sense. The basic dynamic properties of the fractional model such as invariant region, existence of equilibrium points as well as basic reproduction number are briefly discussed. Qualitative results on the existence and uniqueness of solutions via a fixed point argument as well as stability of the model solutions in the sense of Ulam-Hyers are furnished. Furthermore, the model is fitted to the COVID-19 data circulated by Nigeria Centre for Disease Control and the two-step Adams-Bashforth method incorporating the noninteger order parameter is used to obtain an iterative scheme from which numerical results for the model can be generated. Numerical simulations for the proposed model using Adams-Bashforth iterative scheme are presented to describe the behaviors at distinct values of the fractional index parameter for of each of the system state variables. It was shown numerically that the value of fractional index parameter has a significant effect on the transmission behavior of the disease however, the infected population (the exposed, the asymptomatic infectious, the symptomatic infectious) shrinks with time when the basic reproduction number is less than one irrespective of the value of fractional index parameter.
  7. Teoh SP, Bustamam RS, Mustapha FI, Yip CH, Saad M, Somasundaram S, et al.
    J Cancer Policy, 2021 Dec;30:100300.
    PMID: 35559796 DOI: 10.1016/j.jcpo.2021.100300
    BACKGROUND: During periods of high community transmission of COVID-19, the public hospitals in Malaysia, an upper middle-income country, have been forced to scale down elective surgeries, prioritize cancer treatments based on treatment benefits, and postpone non-emergency imaging procedures. These inevitably led to disruptions in cancer care delivery within the public health care system. This study aims to explore the facilitators and barriers faced by healthcare providers and cancer survivors in cancer care, and to co-design a guideline to maintain the delivery of cancer care amid the disaster situations.

    METHOD: In-depth interviews (IDIs) will be conducted with Malaysian healthcare providers and cancer survivors and findings will be analysed thematically. The insights will be used in a subsequent phase to co-design a guideline to maintain the delivery of quality cancer care in Malaysia via a three-round modified Delphi survey with a broad range of cancer stakeholders.

    EXPECTED RESULTS: Findings derived from IDIs and existing literature will be included for rating across three rounds by the expert panel. Feedback provided will be refined until consensus on the best practises for cancer care continuity during crises is achieved.

    CONCLUSION: The output of the present study is not only expected to ensure the continuity of delivery of high-quality cancer care in Malaysia during the ongoing pandemic but also to be adapted during unforeseen crises in the near future.

    POLICY SUMMARY STATEMENT: Collaborative work between policy makers, public health physicians, members of the multidisciplinary oncology team as well as cancer survivors is vital in developing an evidenced- based contingency plan for maintaining access to cancer care.

    MeSH terms: Delivery of Health Care; Humans; Universal Coverage; Pandemics
  8. Radic A, Lück M, Al-Ansi A, Chua BL, Seeler S, Han H
    Int J Hosp Manag, 2021 May;95:102923.
    PMID: 36540687 DOI: 10.1016/j.ijhm.2021.102923
    The cruise dining experience is one of the core elements of the overall cruise travel experience as guests fulfill their cognitive and affective needs in this pleasant environment. Nonetheless, the cruise dining experience has been sparsely researched. There is also no holistic model conceptualizing the cruise ship dining experiencescape. This study explores how under the influence of the COVID-19 pandemic, cruise ship dining environment stimuli dimensions are evaluated by female cruise travelers. Female travelers are the major spenders and travel decision-makers. They are also the dominant customer group in the cruise sector. Their perception of cruise ship dining environment is leading to their positive emotional responses and approach behavior. More precisely, this study demonstrates the potency of the moderating role of a perceived health risk from COVID-19, which strengthens female travelers' perceptions of the dining atmosphere and interaction with other guests by evoking positive emotions and influencing their approach behavior.
  9. Balakrishnan V, Ng KS, Rahim HA
    Technol Soc, 2021 Aug;66:101676.
    PMID: 36540782 DOI: 10.1016/j.techsoc.2021.101676
    This study investigates the underlying motives for online fake news sharing during the COVID-19 pandemic, an unprecedented time that witnessed a spike in the spread of false content. Motives were identified based on a fake news sharing model developed using the SocioCultural-Psychological-Technology (SCulPT) model, Uses and Gratification (U&G) theory and Self-Determination Theory (SDT), and further extended using fake news predictors/gratifications from past studies. A self-administered survey resulted in 869 online Malaysian respondents aged between 18 and 59 years old (Mean = 22.6, Standard deviation = 6.13). Structured equation modelling revealed the fake news sharing model to collectively account for 49.2 % of the variance, with Altruism (β = 0.333; p 
  10. Disli M, Nagayev R, Salim K, Rizkiah SK, Aysan AF
    Res Int Bus Finance, 2021 Dec;58:101461.
    PMID: 36540341 DOI: 10.1016/j.ribaf.2021.101461
    This study assesses the role of gold, crude oil and cryptocurrency as a safe haven for traditional, sustainable, and Islamic investors during the COVID-19 pandemic crisis. Using Wavelet coherence analysis and spillover index methodologies in bivariate and multivariate settings, this study examines the correlation of these assets for different investment horizons. The findings suggest that gold, oil and Bitcoin exhibited low coherency with each stock index across almost all considered investment horizons until the onset of the COVID-19. Conversely, with the outbreak of the pandemic, the return spillover is more intense across financial assets, and a significant pairwise return connectedness between each equity index and hedging asset is observed. Hence, gold, oil, and Bitcoin do not exhibit safe-haven characteristics. However, by decomposing the time-varying co-movements into different investment horizons, we find that total and pairwise connectedness among the assets are primarily driven by a higher-frequency band (up to 4 days). It indicates that investors have diversification opportunities with gold, oil, and Bitcoin at longer horizons. The results are robust over different types of equity investors (traditional, sustainable, and Islamic) and various investment horizons.
  11. Rao P, Goyal N, Kumar S, Hassan MK, Shahimi S
    Res Int Bus Finance, 2021 Dec;58:101462.
    PMID: 36540343 DOI: 10.1016/j.ribaf.2021.101462
    This study aims to examine the impact of COVID-19 on financial markets, using emerging market data. Specifically, panel data regression is applied on 3200 observations for daily market returns during lockdown in India. The event study methodology is adopted to show abnormal returns registered in the lockdown period. A contrasting breakdown effect of COVID-19 on various Indian industries has been observed through sectoral analysis. The study also provides empirical evidence for lockdown measures taken by the government on stock market returns and post lockdown impact of COVID-19 on daily market returns for over 6550 observations.
  12. Alamri RD, Elmeligy MA, Albalawi GA, Alquayr SM, Alsubhi SS, El-Ghaiesh SH
    Int Immunopharmacol, 2021 Apr;93:107398.
    PMID: 33571819 DOI: 10.1016/j.intimp.2021.107398
    Leflunomide (LF) represents the prototype member of dihydroorotate dehydrogenase (DHODH) enzyme inhibitors. DHODH is a mitochondrial inner membrane enzyme responsible for catalytic conversion of dihydroorotate into orotate, a rate-limiting step in the de novo synthesis of the pyrimidine nucleotides. LF produces cellular depletion of pyrimidine nucleotides required for cell growth and proliferation. Based on the affected cells the outcome can be attainable as immunosuppression, antiproliferative, and/or the recently gained attention of the antiviral potentials of LF and its new congeners. Also, protein tyrosine kinase inhibition is an additional mechanistic benefit of LF, which inhibits immunological events such as cellular expansion and immunoglobulin production with an enhanced release of immunosuppressant cytokines. LF is approved for the treatment of autoimmune arthritis of rheumatoid and psoriatic pathogenesis. Also, LF has been used off-label for the treatment of relapsing-remitting multiple sclerosis. However, LF antiviral activity is repurposed and under investigation with related compounds under a phase-I trial as a SARS CoV-2 antiviral in cases with COVID-19. Despite success in improving patients' mobility and reducing joint destruction, reported events of LF-induced liver injury necessitated regulatory precautions. LF should not be used in patients with hepatic impairment or in combination with drugs elaborating a burden on the liver without regular monitoring of liver enzymes and serum bilirubin as safety biomarkers. This study aims to review the pharmacological and safety profile of LF with a focus on the LF-induced hepatic injury from the perspective of pathophysiology and possible protective agents.
    MeSH terms: Antineoplastic Agents/adverse effects; Antineoplastic Agents/pharmacology; Antineoplastic Agents/therapeutic use; Antiviral Agents/adverse effects; Antiviral Agents/pharmacology; Antiviral Agents/therapeutic use; Clinical Trials as Topic; Humans; Immunologic Factors/adverse effects; Immunologic Factors/pharmacology; Immunologic Factors/therapeutic use; Drug-Induced Liver Injury/drug therapy
  13. Ullah I, Khan KS, Tahir MJ, Ahmed A, Harapan H
    Vacunas, 2021;22(2):93-97.
    PMID: 33727904 DOI: 10.1016/j.vacun.2021.01.001
    The current coronavirus disease 2019 (COVID-19) pandemic is one of the international crises and researchers are working collaboratively to develop a safe and effective COVID-19 vaccine. The World Health Organization recognizes vaccine hesitancy as the world's top threat to public health safety, particularly in low middle-income countries. Vaccine hesitancy can be due to a lack of knowledge, false religious beliefs, or anti-vaccine misinformation. The current situation regarding anti-vaccine beliefs is pointing towards dreadful outcomes. It raises the concern that will people believe and accept the new COVID-19 vaccines despite all anti-vaccine movements and COVID-19-related myths and conspiracy theories. This review discusses the possible detrimental impacts of myths and conspiracy theories related to COVID-19 and vaccine on COVID-19 vaccine refusals as well as other vaccine programs.
  14. Faridi S, Yousefian F, Janjani H, Niazi S, Azimi F, Naddafi K, et al.
    Urban Clim, 2021 Jul;38:100888.
    PMID: 36536793 DOI: 10.1016/j.uclim.2021.100888
    We conducted this systematic review to identify and appraise studies investigating the coronavirus disease 2019 (COVID-19) effect on ambient air pollution status worldwide. The review of studies was conducted using determined search terms via three major electronic databases (PubMed, Web of Science, and Scopus) according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) approach. A total of 26 full-text studies were included in our analysis. The lockdown measures related to COVID-19 pandemic caused significant decreases in the concentrations of PM2.5, NO2, PM10, SO2 and CO globally in the range of 2.9%-76.5%, 18.0%-96.0%, 6.0%-75.0%, 6.8%-49.0% and 6.2%-64.8%, respectively. However, O3 concentration increased in the range of 2.4%-252.3%. The highest decrease of PM2.5 was found in 16 states of Malaysia (76.5%), followed by Zaragoza (Spain) with 58.0% and Delhi (India) with 53.1%. The highest reduction of NO2 was found in Salé city (Morocco) with 96.0%, followed by Mumbai (India) with 75.0%, India with 70.0%, Valencia (Spain) with 69.0%, and São Paulo (Brazil) with 68.0%, respectively. The highest increase of O3 was recorded for Milan (Italy) with 252.3% and 169.9% during the first and third phases of lockdown measures, and for Kolkata (India) with 87% at the second phase of lockdown measures. Owing to the lockdown restrictions in the studied countries and cities, driving and public transit as a proxy of human mobilities and the factors affecting emission sources of ambient air pollution decreased in the ranges of 30-88% and 45-94%, respectively. There was a considerable variation in the reduction of ambient air pollutants in the countries and cities as the degree of lockdown measures had varied there. Our results illustrated that the COVID-19 pandemic had provided lessons and extra motivations for comprehensive implementing policies to reduce air pollution and its health effects in the future.
  15. Tabatabaei M, Hosseinzadeh-Bandbafha H, Yang Y, Aghbashlo M, Lam SS, Montgomery H, et al.
    J Clean Prod, 2021 Sep 01;313:127880.
    PMID: 34131367 DOI: 10.1016/j.jclepro.2021.127880
    On January 30, 2020, the World Health Organization identified SARS-CoV-2 as a public health emergency of global concern. Accordingly, the demand for personal protective equipment (PPE), including medical face masks, has sharply risen compared with 2019. The new situation has led to a sharp increase in energy demand and the environmental impacts associated with these product systems. Hence, the pandemic's effects on the environmental consequences of various PPE types, such as medical face masks, should be assessed. In light of that, the current study aimed to identify the environmental hot-spots of medical face mask production and consumption by using life cycle assessment (LCA) and tried to provide solutions to mitigate the adverse impacts. Based on the results obtained, in 2020, medical face masks production using fossil-based plastics causes the loss of 2.03 × 103 disability-adjusted life years (DALYs); 1.63 × 108 PDF*m2*yr damage to ecosystem quality; the climate-damaging release of 2.13 × 109 kg CO2eq; and 5.65 × 1010 MJ damage to resources. Besides, annual medical face mask production results in 5.88 × 104 TJ demand for exergy. On the other hand, if used makes are not appropriately handled, they can lead to 4.99 × 105 Pt/yr additional damage to the environment in 2020 as determined by the EDIP 2003. Replacement of fossil-based plastics with bio-based plastics, at rates ranging from 10 to 100%, could mitigate the product's total yearly environmental damage by 4-43%, respectively. Our study calls attention to the environmental sustainability of PPE used to prevent virus transmission in the current and future pandemics.
  16. Nilashi M, Abumalloh RA, Alghamdi A, Minaei-Bidgoli B, Alsulami AA, Thanoon M, et al.
    Telemat Inform, 2021 Nov;64:101693.
    PMID: 34887617 DOI: 10.1016/j.tele.2021.101693
    The COVID-19 pandemic has caused major global changes both in the areas of healthcare and economics. This pandemic has led, mainly due to conditions related to confinement, to major changes in consumer habits and behaviors. Although there have been several studies on the analysis of customers' satisfaction through survey-based and online customers' reviews, the impact of COVID-19 on customers' satisfaction has not been investigated so far. It is important to investigate dimensions of satisfaction from the online customers' reviews to reveal their preferences on the hotels' services during the COVID-19 outbreak. This study aims to reveal the travelers' satisfaction in Malaysian hotels during the COVID-19 outbreak through online customers' reviews. In addition, this study investigates whether service quality during COVID-19 has an impact on hotel performance criteria and consequently customers' satisfaction. Accordingly, we develop a new method through machine learning approaches. The method is developed using text mining, clustering, and prediction learning techniques. We use Latent Dirichlet Allocation (LDA) for big data analysis to identify the voice-of-the-customer, Expectation-Maximization (EM) for clustering, and ANFIS for satisfaction level prediction. In addition, we use Higher-Order Singular Value Decomposition (HOSVD) for missing value imputation. The data was collected from TripAdvisor regarding the travelers' concerns in the form of online reviews on the COVID-19 outbreak and numerical ratings on hotel services from different perspectives. The results from the analysis of online customers' reviews revealed that service quality during COVID-19 has an impact on hotel performance criteria and consequently customers' satisfaction. In addition, the results showed that although the customers are always seeking hotels with better performance, they are also concerned with the quality of related services in the COVID-19 outbreak.
  17. Soon JM, Vanany I, Abdul Wahab IR, Hamdan RH, Jamaludin MH
    Food Control, 2021 Jul;125:107920.
    PMID: 35668872 DOI: 10.1016/j.foodcont.2021.107920
    The COVID-19 pandemic has altered consumers' relationship with food, whether through shopping, increased home cooking, taking pre-cautionary measures during food shopping, food delivery and whilst dining out. This study aims to examine the impact of COVID-19 pandemic on consumers' food safety knowledge, attitude and practices and to identify the predictors of food safety practices during COVID-19. An online survey was conducted and received valid responses from 987 respondents. Data were analysed using descriptive statistics, non-parametric tests, Spearman's rho correlation and multiple regression. The Theory of Planned Behaviour (TPB) model was used to investigate the intention to practice safe eating out measures during COVID-19. The mean food safety knowledge score was 6.37 ± 1.37 (9.00 = highest score) of which 91.3% of total respondents from Indonesia and Malaysia scored ≥5 points. Consumers also demonstrated positive food safety attitude (4.06 ± 0.99) and reported high frequencies in conducting food safety practices (4.03 ± 0.82) during COVID-19. The TPB has provided valuable framework for understanding consumers' intention to practice safe eating out measures during COVID-19. The multiple regression model explained 63% and 73% of the variance in adherence to safe eating out practices in Indonesia and Malaysia and (p 
  18. Dixon JM, Weerahewa J, Hellin J, Rola-Rubzen MF, Huang J, Kumar S, et al.
    Agric Syst, 2021 Oct;193:103168.
    PMID: 36284566 DOI: 10.1016/j.agsy.2021.103168
    CONTEXT: The COVID-19 pandemic has been affecting health and economies across the world, although the nature of direct and indirect effects on Asian agrifood systems and food security has not yet been well understood.

    OBJECTIVES: This paper assesses the initial responses of major farming and food systems to COVID-19 in 25 Asian countries, and considers the implications for resilience, food and nutrition security and recovery policies by the governments.

    METHODS: A conceptual systems model was specified including key pathways linking the direct and indirect effects of COVID-19 to the resilience and performance of the four principal Asian farming and food systems, viz, lowland rice based; irrigated wheat based; hill mixed; and dryland mixed systems. Based on this framework, a systematic survey of 2504 key informants (4% policy makers, 6% researchers or University staff, 6% extension workers, 65% farmers, and 19% others) in 20 Asian countries was conducted and the results assessed and analysed.

    RESULTS AND CONCLUSION: The principal Asian farming and food systems were moderately resilient to COVID-19, reinforced by government policies in many countries that prioritized food availability and affordability. Rural livelihoods and food security were affected primarily because of disruptions to local labour markets (especially for off-farm work), farm produce markets (notably for perishable foods) and input supply chains (i.e., seeds and fertilisers). The overall effects on system performance were most severe in the irrigated wheat based system and least severe in the hill mixed system, associated in the latter case with greater resilience and diversification and less dependence on external inputs and long market chains. Farming and food systems' resilience and sustainability are critical considerations for recovery policies and programmes, especially in relation to economic performance that initially recovered more slowly than productivity, natural resources status and social capital. Overall, the resilience of Asian farming and food systems was strong because of inherent systems characteristics reinforced by public policies that prioritized staple food production and distribution as well as complementary welfare programmes. With the substantial risks to plant- and animal-sourced food supplies from future zoonoses and the institutional vulnerabilities revealed by COVID-19, efforts to improve resilience should be central to recovery programmes.

    SIGNIFICANCE: This study was the first Asia-wide systems assessment of the effects of COVID-19 on agriculture and food systems, differentiating the effects of the pandemic across the four principal regional farming and food systems in the region.

  19. Noman M, Kaur A, Nafees N
    Child Youth Serv Rev, 2021 Jun;125:106001.
    PMID: 35990216 DOI: 10.1016/j.childyouth.2021.106001
    Covid-19 has impacted the lives of everyone around the world, including university students. The pandemic has wreaked havoc on all economies, resulting in a huge loss of employment. As a result, university students are anxious about their job prospects upon graduation. The purpose of this study was to identify the effects of two stressors - employment anxiety and financial anxiety and two supports - university support and lecturer support on dropout intention and academic performance on university students with well-being and purpose in life being the mediators. This quantitative was carried out in Malaysia using 436 final-year undergraduate students. The full mediation model indicated that the university and lecturer support mitigates the two stressors' effects through well-being and purpose in life. Students who reported better support systems reported lower academic concerns and were less likely to drop out than those who reported less support from their university and lectures. The significance of this study and its implications are discussed, along with the findings.
  20. Tsvetkov V, Varizhuk A, Kozlovskaya L, Shtro A, Lebedeva O, Komissarov A, et al.
    Biochimie, 2021 Dec;191:27-32.
    PMID: 34389380 DOI: 10.1016/j.biochi.2021.08.003
    In the search for anti-SARS-CoV-2 drugs, much attention is given to safe and widely available native compounds. The green tea component epigallocatechin 3 gallate (EGCG) is particularly promising because it reportedly inhibits viral replication and viral entry in vitro. However, conclusive evidence for its predominant activity is needed. We tested EGCG effects on the native virus isolated from COVID-19 patients in two independent series of experiments using VERO cells and two different treatment schemes in each series. The results confirmed modest cytotoxicity of EGCG and its substantial antiviral activity. The preincubation scheme aimed at infection prevention has proven particularly beneficial. We complemented that finding with a detailed investigation of EGCG interactions with viral S-protein subunits, including S2, RBD, and the RBD mutant harboring the N501Y mutation. Molecular modeling experiments revealed N501Y-specific stacking interactions in the RBD-ACE2 complex and provided insight into EGCG interference with the complex formation. Together, these findings provide a molecular basis for the observed EGCG effects and reinforce its prospects in COVID-19 prevention therapy.
    MeSH terms: Animals; Antiviral Agents/pharmacology*; Catechin/analogs & derivatives*; Catechin/pharmacology; Cercopithecus aethiops; Mutation*; Vero Cells; Viral Proteins/metabolism; Viral Proteins/chemistry; Virus Internalization/drug effects; Molecular Dynamics Simulation; Molecular Docking Simulation
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