Browse publications by year: 2022

  1. Zheng JC
    Research (Wash D C), 2022;2022:9867639.
    PMID: 39816932 DOI: 10.34133/2022/9867639
    How to achieve high thermoelectric figure of merit is still a scientific challenge. By solving the Boltzmann transport equation, thermoelectric properties can be written as integrals of a single function, the transport distribution function (TDF). In this work, the shape effects of transport distribution function in various typical functional forms on thermoelectric properties of materials are systematically investigated. It is found that the asymmetry of TDF, characterized by skewness, can be used to describe universally the trend of thermoelectric properties. By defining symmetric and asymmetric TDF functions, a novel skewness is then constructed for thermoelectric applications. It is demonstrated, by comparison with ab initio calculations and experiments, that the proposed thermoelectric skewness not only perfectly captures the main feature of conventional skewness but also is able to predict the thermoelectric power accurately. This comparison confirms the unique feature of our proposed thermoelectric skewness, as well as its special role of connection between the statistics of TDF and thermoelectric properties of materials. It is also found that the thermoelectric performance can be enhanced by increasing the asymmetry of TDF. Finally, it is also interesting to find that the thermoelectric transport properties based on typical quantum statistics (Fermi-Dirac distributions) can be well described by typical shape parameter (skewness) for classical statistics.
  2. Shamsah A, Aburezq M, Abdullah Z, Khamissi F, Almaateeq B, AlAlban F, et al.
    PMID: 39817277 DOI: 10.3389/frcha.2022.1034492
    BACKGROUND: COVID-19 is an infectious disease that was declared as a pandemic and public health emergency in late 2019 and has impacted children's mental health worldwide. This study aimed to assess the general and mental health status of children during different stages of COVID-19 pandemic, and to identify the associated factors.

    METHODS: A cross-sectional study conducted on children aging 3 to 12 years in Kuwait during three different stages of COVID19 pandemic (pre-total curfew, during total curfew, and post-total curfew). The psychological status was assessed using the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders criteria.

    RESULTS: Of 2157 children between the age of 3 to 12 years old, 853 (39.5%) reported increased level of aggression, 789 (36.6%) over-crying, 749 (34.7%) sadness, 493 (22.9%) anxiety, 429 (19.9%) anhedonia, 383 (17.8%) confusion, 274 (12.7%) nightmares, 177 (8.2%) avoidance, 174 (8.1%) physical symptoms and 121 (5.6%) bedwetting during the pandemic. General health status was also affected with reported disturbed sleeping pattern (84.6%), altered appetite (50.9%) and weight changes (36.9%), mainly weight gain. Risk factors included being non-national, as well as having lower parental educational level and lower socioeconomic status; while protective factors involved meeting classmates, indoor and outdoor activities, and less screen time.

    CONCLUSIONS: COVID19 crisis had drastic impact on children's mental and general health, requiring serious action regarding evaluating this generation and intervening accordingly.

  3. Akash S, Sivaprakash B, Rajamohan N, Pandiyan CM, Vo DN
    Chemosphere, 2022 Aug;301:134754.
    PMID: 35490750 DOI: 10.1016/j.chemosphere.2022.134754
    The excessive and unorganised utilisation of pesticides have posed negative impacts on soil and water at higher levels. Pesticides are a major class of persistent organic compounds with high resistance to natural biodegradation and enhanced tendency to bio accumulate. The severe health hazards imposed on the living organisms hinder the ecosystem and lead to chronic and irreversible health issues. Photocatalytic method is reported as a potential alternative with a variety of techniques and materials that are safer, easier, durable, cost-effective and efficient. Nanomaterials play a key role in this domain due to their versatility. In particular, nanostructured materials of organized shapes and morphological properties have gained enormous attention in research and real-time applications. Specifically, nanomaterials like nanotubes, nanorods and nanowires have unique properties and anisotropic structure that make them more suitable for treating pesticide wastes with photocatalysis. Variety of tuning methods and materials are emerging to enhance the activity of titanium and zinc based nanocatalysts in remediation methods. In the present article, four pesticides, namely, atrazine, chlorpyrifos, paraquat and naphthalene are chosen due to their common occurrence and usage in agricultural applications. These pesticides are highly toxic and need special attention to explore appropriate remediation methods. The report also details the latest innovations reported by several research studies in exploring the potential of specially synthesised nanoparticles for photocatalytic removal of pesticide pollutants from environment. For zinc-based hybrid nanomaterials, the maximum disintegration reported were 99%, 98%, 73.3% and 92.3% for atrazine, chlorpyrifos, paraquat and naphthalene, respectively.
    MeSH terms: Atrazine*; Chlorpyrifos*; Environmental Pollutants*; Naphthalenes; Organic Chemicals; Paraquat; Zinc; Ecosystem
  4. Yap JX, Leo CP, Chan DJC, Mohd Yasin NH, Show PL
    Chemosphere, 2022 Nov;307(Pt 1):135625.
    PMID: 35820481 DOI: 10.1016/j.chemosphere.2022.135625
    Microalgae cultivation in open ponds requires a large footprint, while most photobioreactors need improvement in the ratio of surface to volume and energy consumption. In this study, polyethersulfone (PES) and poly(vinylidene fluoride) (PVDF) hollow fiber membranes with a large surface area were rearranged into open-ended and dead-ended configurations to improve the air-liquid interface cultivation of Navicula incerta. N. incerta were successfully grown on the porous membrane surface with the nutrients circulating inside the lumen. Fourier-transform infrared spectra showed the accumulation of polysaccharides, proteins and humic acids. Hydrophilic polysaccharides reduced water contact angles on PES and PVDF membranes to 37.2 ± 2.6° and 55.7 ± 3.3°, respectively. However, the porosity of PES (80.1 ± 1.1%) and PVDF (61.3 ± 4.5%) membranes were not significantly affected even after cultivation and harvesting of N. incerta. Scanning electron images further confirmed that N. incerta, cell debris and extracellular organic matter accumulated on the membrane. With large pores and a hydrophobic surface, PVDF hollow fiber membranes offered a greater improvement in N. incerta cell growth rate compared to PES hollow fiber membranes despite using different configurations. In the dead-ended configuration, they even attained the greatest improvement in N. incerta growth rate, up to 54.0%. However, PES hollow fiber membranes only achieved improvement in harvesting efficiency within the range of 18.7-38.0% due to weak cell adhesion. PVDF hollow fiber membranes significantly promoted the growth of microalgae N. incerta through the air-liquid interface system, leading to potential applications in wastewater treatment.
    MeSH terms: Fluorocarbon Polymers; Humic Substances*; Membranes, Artificial*; Polymers; Polyvinyls/chemistry; Sulfones; Water
  5. Li M, Wang Y, Shen Z, Chi M, Lv C, Li C, et al.
    Chemosphere, 2022 Nov;307(Pt 2):135774.
    PMID: 35921888 DOI: 10.1016/j.chemosphere.2022.135774
    The objective of this study was to visualize trends and current research status of hydrothermal biochar research through a bibliometric analysis by using CiteSpace software. The original article data were collected from the Web of Science core database published between 2009 and 2020. A visual analysis network of national co-authored, institutional co-authored and author co-authored articles was created, countries, institutions and authors were classified accordingly. By visualizing the cited literature and journal co-citation networks, the main subject distribution and core journals were identified respectively. By visualizing journal co-citations, the main research content was identified. Further the cluster analysis revealed the key research directions of knowledge structure. Keyword co-occurrence analysis and key occurrence analysis demonstrate current research hotspots and new research frontiers. Through the above analysis, the cooperation and contributions of hydrothermal biochar research at different levels, from researchers to institutions to countries to macro levels, were explored, the disciplinary areas of knowledge and major knowledge sources of hydrothermal biochar were discovered, and the development lineage, current status, hotspots and trends of hydrothermal biochar were clarified. The results obtained from the study can provide a reference for scholars to gain a deeper understanding of hydrothermal biochar.
    MeSH terms: Charcoal; Software*; Bibliometrics*
  6. Harel D, Levis B, Sun Y, Fischer F, Ioannidis JPA, Cuijpers P, et al.
    Methods, 2022 Aug;204:300-311.
    PMID: 34780986 DOI: 10.1016/j.ymeth.2021.11.005
    Shortened versions of self-reported questionnaires may be used to reduce respondent burden. When shortened screening tools are used, it is desirable to maintain equivalent diagnostic accuracy to full-length forms. This manuscript presents a case study that illustrates how external data and individual participant data meta-analysis can be used to assess the equivalence in diagnostic accuracy between a shortened and full-length form. This case study compares the Patient Health Questionnaire-9 (PHQ-9) and a 4-item shortened version (PHQ-Dep-4) that was previously developed using optimal test assembly methods. Using a large database of 75 primary studies (34,698 participants, 3,392 major depression cases), we evaluated whether the PHQ-Dep-4 cutoff of ≥ 4 maintained equivalent diagnostic accuracy to a PHQ-9 cutoff of ≥ 10. Using this external validation dataset, a PHQ-Dep-4 cutoff of ≥ 4 maximized the sum of sensitivity and specificity, with a sensitivity of 0.88 (95% CI 0.81, 0.93), 0.68 (95% CI 0.56, 0.78), and 0.80 (95% CI 0.73, 0.85) for the semi-structured, fully structured, and MINI reference standard categories, respectively, and a specificity of 0.79 (95% CI 0.74, 0.83), 0.85 (95% CI 0.78, 0.90), and 0.83 (95% CI 0.80, 0.86) for the semi-structured, fully structured, and MINI reference standard categories, respectively. While equivalence with a PHQ-9 cutoff of ≥ 10 was not established, we found the sensitivity of the PHQ-Dep-4 to be non-inferior to that of the PHQ-9, and the specificity of the PHQ-Dep-4 to be marginally smaller than the PHQ-9.
    MeSH terms: Humans; Mass Screening/methods; Sensitivity and Specificity; Reproducibility of Results; Tool Use Behavior*
  7. Krishnamurthy K, Selvaraj N, Gupta P, Cyriac B, Dhurairaj P, Abdullah A, et al.
    Clin Anat, 2022 Sep;35(6):795-807.
    PMID: 35637557 DOI: 10.1002/ca.23916
    Medical education is changing at a fast pace. Students attend medical school with a high degree of technological literacy and a desire for a diverse educational experience. As a result, a growing number of medical schools are incorporating technology-enhanced active learning and multimedia education tools into their curriculum. Gamified training platforms include educational games, mobile medical apps, and virtual patient scenarios. We provide a systematic review of what is meant by gamification in this era. Specific educational games, mobile apps, and virtual simulations that may be used for preclinical and clinical training have been discovered and classified. The available data were presented in terms of the recognized platforms for medical education's possible benefits. Virtual patient simulations have been shown to enhance learning results in general. Gamification could improve learning, engagement, and cooperation by allowing for real-world application. They may also help with promoting risk-free healthcare decision-making, remote learning, learning analytics, and quick feedback. We account for Preclinical training which included 5 electronic games and 4 mobile apps, while clinical training included 5 electronic games, 10 mobile applications, and 12 virtual patient simulation tools. There were additionally nine more gamified virtual environment training products that were not commercially accessible. Many of these studies have shown that utilizing gamified media in medical education may confer advantages. This collection of hyperlinked resources may be utilized by medical students, practitioners, and instructors at all levels.
    MeSH terms: Curriculum; Education, Medical*; Humans; Schools, Medical; Students, Medical*
  8. Liu JW, Supandi F, Dhillon SK
    Folia Biol (Praha), 2022;68(1):1-15.
    PMID: 36201853
    Clear cell renal cell carcinoma (ccRCC) is very common and accounts for most kidney cancer deaths. While many studies are being conducted in finding the prognostic signatures of ccRCC, we believe that ferroptosis, which involves programmed cell death dependent on iron accumulation, has therapeutic potential in ccRCC. Recent research has shown that long noncoding RNAs (lncRNAs) are involved in ferroptosis-related tumour processes and are closely related to survival in patients with ccRCC. Hence, in this study we aim to further explore the role of ferroptosis-related lncRNAs (FRLs) in ccRCC, hoping to establish a signature to predict the survival outcome of ccRCC. We analysed transcriptome data from The Cancer Genome Atlas database (TCGA) and ferroptosis-related genes (FRGs) from FerrDb to identify FRLs using Pearson's correlation. Lasso Cox regression analysis and multivariate Cox proportional hazards models screened seventeen optimal FRLs for developing prognostic signatures. Kaplan-Meier survival curves and ROC curves were then plotted for validating the sensitivity, specificity, and accuracy of the identified signatures. Gene Set Enrichment Analysis and CIBERSORT algorithm were deployed to explore the role of these FRLs in the tumour microenvironment. It was concluded that these models demonstrate excellent performance in predicting prognosis among patients with ccRCC, also indicating association with the clinicopathologic parameters such as tumour grade, tumour stage and tumour immune infiltration. In conclusion, our findings provide novel insights into ferroptosis-related lncRNAs in ccRCC, which are important targets for investigating the tumorigenesis of ccRCC.
    MeSH terms: Humans; Iron; Biomarkers, Tumor/genetics; Biomarkers, Tumor/metabolism; Tumor Microenvironment
  9. Fahrni ML, Priyanka, Choudhary OP
    Int J Surg, 2022 Sep;105:106832.
    PMID: 35963577 DOI: 10.1016/j.ijsu.2022.106832
    MeSH terms: Humans; Monkeypox virus*; Infectious Disease Transmission, Vertical*; Monkeypox
  10. Lee-Ling C, Hui Yan T, Saupi N, Nazamid S, Sarbini SR
    J Sci Food Agric, 2022 Dec;102(15):7231-7238.
    PMID: 35760587 DOI: 10.1002/jsfa.12088
    BACKGROUND: Edible palm hearts (EPH), known as palmito, chonta or swamp cabbage in America or umbut in Malaysia, is a type of vegetable harvested from palm tree species. EPH is firm and smooth and described as having a flavor resembling artichoke. It has underlying prebiotic potential that selectively stimulates the growth and activity of beneficial colonic microbiota, thus enhancing the host's health. This study is the first to present results of EPH from local species such as oil palm (Elaeis guineensis), sago palm (Metroxylon sagu) and coconut (Cocos nucifera) using in vitro colonic fermentation with human fecal slurry. Samples obtained at 0, 6, 12 and 24 h were evaluated by bacterial enumeration using fluorescent in situ hybridization (FISH), and short-chain fatty acids (SCFA) were analyzed by high-performance liquid chromatography (HPLC).

    RESULTS: All EPH samples revealed induction effects towards Bifidobacterium spp., Lactobacillus-Enterococcus and Bacteroidaceae/Prevotellaceae populations similar to those in inulin fermentation. A significant decrease (P ≤ 0.05) in pathogenic Clostridium histolyticum group was observed in the response of raw sago palm hearts. In general, all samples stimulate the production of SCFA. Particularly in the colonic fermentation of sago palm heart, acetate and propionate revealed the highest concentrations of 286.18 and 284.83 mmol L-1 in raw and cooked form, respectively.

    CONCLUSION: This study concluded that edible palm hearts can be a potential prebiotic ingredient that promotes human gastrointestinal health, as well as discovering a new direction towards an alternative source of functional foods. © 2022 Society of Chemical Industry.

    MeSH terms: Bifidobacterium; Cocos; Fatty Acids, Volatile; Feces/microbiology; Fermentation; Humans; In Situ Hybridization, Fluorescence; Arecaceae*; Prebiotics*
  11. Omar IS, Abd Jamil AH, Mat Adenan NA, Chung I
    PLoS One, 2022;17(7):e0270830.
    PMID: 35816477 DOI: 10.1371/journal.pone.0270830
    Obese women have a higher risk of developing endometrial cancer (EC) than lean women. Besides affecting EC progression, obesity also affects sensitivity of patients to treatment including medroxprogesterone acetate (MPA). Obese women have a lower response to MPA with an increased risk for tumor recurrence. While MPA inhibits the growth of normal fibroblasts, human endometrial cancer-associated fibroblasts (CAFs) were reported to be less responsive to MPA. However, it is still unknown how CAFs from obese women respond to progesterone. CAFs from the EC tissues of obese (CO) and non-obese (CN) women were established as primary cell models. MPA increased cell proliferation and downregulated stromal differentiation genes, including BMP2 in CO than in CN. Induction of IRS2 (a BMP2 regulator) mRNA expression by MPA led to activation of glucose metabolism in CO, with evidence of greater mRNA levels of GLUT6, GAPDH, PKM2, LDHA, and increased in GAPDH enzymatic activity. Concomitantly, MPA increased the mRNA expression of a fatty acid transporter, CD36 and lipid droplet formation in CO. MPA-mediated increase in glucose metabolism genes in CO was reversed with a progesterone receptor inhibitor, mifepristone (RU486), leading to a decreased proliferation. Our data suggests that PR signaling is aberrantly activated by MPA in CAFs isolated from endometrial tissues of obese women, leading to activation of IRS2 and glucose metabolism, which may lead to lower response and sensitivity to progesterone in obese women.
    MeSH terms: Acetates; Female; Glucose; Humans; Neoplasm Recurrence, Local; Obesity/complications; Obesity/genetics; Obesity/metabolism; Phenotype; Progesterone/metabolism; Progesterone/pharmacology; Receptors, Progesterone/metabolism; RNA, Messenger/genetics; Mifepristone/pharmacology; Medroxyprogesterone Acetate; Insulin Receptor Substrate Proteins/genetics
  12. Sreeramareddy CT, Manoharan A
    Nicotine Tob Res, 2022 Jun 15;24(7):1095-1103.
    PMID: 35596725 DOI: 10.1093/ntr/ntab269
    INTRODUCTION: E-cigarette (EC) use is seldom reported from low- and middle-income countries (LMICs). We report the prevalence of "awareness" about EC, its use, and distribution of EC use by sociodemographic factors and cigarette smoking (CS) status.

    AIMS AND METHODS: We analyzed Global Adult Tobacco Survey data in Bangladesh, China, Costa Rica, Ethiopia, India, Kazakhstan, Mexico, Philippines, Romania, Russia, Senegal, Ukraine, Turkey, Uruguay, and Viet Nam during 2014-2018. The weighted prevalence of "awareness" (heard about), "ever" (even once), and "current" (daily/nondaily) EC use among never, current, and former cigarette smokers and quit ratios (past smokers/ever smokers) was estimated. Association of EC use with sociodemographic, and CS, was explored by multilevel regression.

    RESULTS: Overall, prevalence of "awareness," "ever," and "current" ECs use was 19.3% (95% confidence interval [CI] 27.4, 31.1), 2.6% (95% CI 2.4, 2.8), and 0.7% (95% CI 0.6, 0.8), respectively. In most countries, "ever use" <10%, and "current use" was about 1% except Romania (4.4%) and Russia (3.5%). "Current use" was 0.1%, 2.9%, and 3.1% among never, current, and former smokers, respectively. "Current" and "ever" EC use was higher among current and former than never smokers (2.8% and 3.1% vs. 0.1%; 9.9% and 10.9% vs. 0.7%), respectively. Current EC use was associated with male sex, urban residence and younger age, higher education, and wealth. "Quit attempts" (aOR 1.3, 95% CI 1.2, 1.5) and cigarettes smoked per day (aOR 1.6, 95% CI 1.4, 1.9) were associated with "ever use."

    CONCLUSIONS: EC use was low in most countries. "Dual use" was common among current smokers and the quit ratio was higher among ECs users.

    IMPLICATIONS: EC use is increasing in high-income countries (HICs) where regulations on ECs are usually permissive. Evidence on the individual- or population-level impact of ECs on CS cessation is inconclusive. Little is known about the prevalence of EC use in LMICs where regulations are nonexistent or less restrictive. Studying the distribution of EC use rates by population subgroups, CS status, and quit ratios for CS among EC users will assist the formulation of EC regulatory policies. We provide comparable nationally representative prevalence estimates of "awareness" about and, use of ECs to serve as a benchmark for future monitoring. EC use was associated with the attempt to quit CS and smoking >10 cigarettes per day. However, "dual use" was common, and the quit ratio for CS was higher among EC users. EC use was very low relative to HICs. Nevertheless, comprehensive EC regulatory policies should be implemented to prevent the escalation of EC use by targeting population subgroups such as young adults, educated and wealthier individuals.

    MeSH terms: Developing Countries; Humans; Male; Surveys and Questionnaires; Young Adult; Tobacco Products*; Electronic Cigarettes*
  13. Ahsan A, Handika R, Qureshi F, Martokoesoemo DRS, Hindriyani M, Amalia N, et al.
    Asian Pac J Cancer Prev, 2022 Jun 01;23(6):1873-1878.
    PMID: 35763626 DOI: 10.31557/APJCP.2022.23.6.1873
    OBJECTIVE: The still debatable contribution of tobacco to the economy demands further discussion as tobacco remains controversial commodity due to its adverse health impacts. This paper aims to investigate the relationship between tobacco and the economy using macroeconomics indicators such as unemployment, inflation, and GDP growth. As a comparison, we include the tobacco price bands in USA because the sector is one of dominant affecting the economy and the price in some main areas in America is incredibly competitive.

    METHODS: This paper use tobacco data and Macroeconomics Indicators from Euromonitor International and World Bank Data. We extend linear regression models by controlling both the serial correlation and endogeneity bias problems. We also observe the properties in the ARMA(2,2) data generating process.

    RESULTS: We document that tobacco tends to affect the USA's future economy but not Indonesia. In our robustness check, we conduct a SUR analysis to control the contemporaneous correlations among Asian markets. We further document that tobacco variables tend not to affect the economy in the Asian markets.

    CONCLUSION: Our results show that the contribution of tobacco commodity to the economy is overstated. Therefore, the comprehensive and massive tobacco control implementations should be undertaken hence is relevant to put into actions.

    MeSH terms: Humans; Indonesia; Tobacco Industry*; Tobacco Use/adverse effects; Tobacco Use/epidemiology
  14. Khan S, Saleh T, Dorasamy M, Khan N, Tan Swee Leng O, Gale Vergara R
    F1000Res, 2022;11:971.
    PMID: 39258289 DOI: 10.12688/f1000research.123098.1
    Background: Cybercrime is a fast-growing digital crime and legislation falling behind with the fast-moving advancement of technology. One important factor projected by literature in combating cybercrime is legislation. In order to combat cybercrime, the role of cybercrime legislation is a challenge that has not been clearly studied before. This paper thus aims to recapitulate the literature on cybercrime legislation in combating cybercrime. The literature in this context emphasises on existing studies relating to cybercrime legislation and addressing the importance of adequate and efficient responses in place in order to combat cybercrime efficiently. Methods: This paper finds an extensive literature review using the "Preferred Reporting Items for Systematic Review and Meta-Analysis" method based on legislation to combat cybercrime and explains a systematic analysis of the legislation in most advanced countries in both technology and legal framework. The study was done by selecting keywords, validated by the experts to discover research trends of cybercrime legislation. A search was then run across seven academic databases, including the ACM Digital Library, Emerald, Hein Online, ProQuest, ScienceDirect, Scopus, and Westlaw Asia. Initially, five hundred and forty-eight articles were retrieved and out of which seventy-two studies met the inclusion criteria and were fully reviewed. Results: The findings of the study revealed that comprehensive cybercrime legislation plays a vital role in combating cybercrime and cybercrime legislation should be strengthened, enhanced, and made up to date with the rapid advancement of technology in order to address the rising number of cybercrime. Discussion: This systematic review is timely and highlights future research directions to improve a comprehensive legal framework to combat the rising of cybercrime effectively. To fill the research gap, the findings also have fundamental practical implications for the policy makers, in enacting an up to date cybercrime legislation by highlighting the role of legislation in combating cybercrime.
  15. Khan S, Mishra J, Ahmed N, Onyige CD, Lin KE, Siew R, et al.
    Int J Disaster Risk Reduct, 2022 May;74:102903.
    PMID: 35313476 DOI: 10.1016/j.ijdrr.2022.102903
    In today's information age, both excess and lack of information can cause a disaster. COVID-19 pandemic not only highlighted the significance of risk communication but also pointed out several unintended and distressing consequences due to information gaps and miscommunications. Despite facing a common threat, the local communities suffered differential impacts during the pandemic. This paper classifies the nature of risk communications experienced across different countries into three categories, namely: inadequate, ideal, and infodemic risk communication that influenced the local perceptions and responses. It further argues that inadequately planned risk communications tend to create new risks and compromise the efforts towards managing a disaster. As global risks are responded locally, there is a need for more inclusive and engaging risk communication that involves communities as responsible stakeholders who understand, plan, and respond to risks to increase their propensity for resilience during disasters and crisis situations.
  16. Soon JM, Vanany I, Abdul Wahab IR, Abdullah Sani N, Hamdan RH, Jamaludin MH
    Food Control, 2022 Aug;138:109029.
    PMID: 35449723 DOI: 10.1016/j.foodcont.2022.109029
    The threat of COVID-19 has altered consumers shopping behaviour and increased consumers' willingness to purchase food using online food delivery services. Consumers were more likely to practice strict hand hygiene measures and were concerned with food safety. Such behaviours were likely driven by the fear and threat of contracting COVID-19. This study aims to use Protective Motivation Theory (PMT) to investigate how COVID-19 affects food shopping and food safety behaviour. An online, cross-sectional study was conducted in Indonesia and Malaysia to determine the protective motivation to engage in three food shopping and hygiene practices such as i) Safe food shopping behaviour; ii) Hand hygiene and avoiding cross contamination; and iii) Use of online food delivery services. Data were analysed using descriptive statistics, Spearman rho's correlation and binary logistic regression. A total of 1180 responses were received of which 1129 were valid. Gender was identified as a significant predictor across all food safety behaviours during COVID-19. Response efficacy and self-efficacy were significant predictors for food shopping behaviour while perceived severity significantly predicted hand hygiene practices after shopping. Age, frequency of food preparation and shopping, perceived severity, perceived vulnerability, response efficacy and self-efficacy were significant predictors for use of online food delivery services. Our findings suggest that women were more likely to engage in protective measures during food shopping, carry out hand hygiene practices after shopping and use online food delivery services during COVID-19. Participants with higher response and self-efficacy scores were more likely to shop from markets or shops with high hygiene standards while participants who perceived COVID-19 as a serious threat were more likely to clean and sanitise their hands after shopping. Participants also believed that the use of online food delivery services helps to reduce the risk of COVID-19 infection. However, foods should be purchased from trusted restaurants or takeaways. This is the first study to use Protection Motivation Theory to explore consumers' food shopping, hand hygiene and online food delivery practices during COVID-19.
  17. Balakrishnan V, Ng WZ, Soo MC, Han GJ, Lee CJ
    Int J Disaster Risk Reduct, 2022 Aug;78:103144.
    PMID: 35791376 DOI: 10.1016/j.ijdrr.2022.103144
    The spread of fake news increased dramatically during the COVID-19 pandemic worldwide. This study aims to synthesize the extant literature to understand the magnitude of this phenomenon in the wake of the pandemic in 2021, focusing on the motives and sociodemographic profiles, Artificial Intelligence (AI)-based tools developed, and the top trending topics related to fake news. A scoping review was adopted targeting articles published in five academic databases (January 2021-November 2021), resulting in 97 papers. Most of the studies were empirical in nature (N = 69) targeting the general population (N = 26) and social media users (N = 13), followed by AI-based detection tools (N = 27). Top motives for fake news sharing include low awareness, knowledge, and health/media literacy, Entertainment/Pass Time/Socialization, Altruism, and low trust in government/news media, whilst the phenomenon was more prominent among those with low education, males and younger. Machine and deep learning emerged to be the widely explored techniques in detecting fake news, whereas top topics were related to vaccine, virus, cures/remedies, treatment, and prevention. Immediate intervention and prevention efforts are needed to curb this anti-social behavior considering the world is still struggling to contain the spread of the COVID-19 virus.
  18. Rusli R, Mohammad MZ, Azreena Kamaluddin N, Bakar H, Hafzi Md Isa M
    Case Stud Transp Policy, 2022 Dec;10(4):2244-2250.
    PMID: 36268008 DOI: 10.1016/j.cstp.2022.10.006
    The rapid development of e-commerce and the spread of the COVID-19 virus created many new jobs opportunity including food delivery riders known as P-Hailing riders. The number of food delivery riders has increased drastically, especially in Malaysia. Consequently, the number of food delivery riders involved in traffic crashes also increased. This study aimed to examine the characteristics of food delivery riders involved in traffic crashes during delivery and to compare with the characteristics of food delivery riders without any traffic crash history. This paper explores and compares general characteristics, previous experience of working and receiving traffic tickets, and knowledge of road safety. Due to unavailable official records about the number of active food delivery riders in Malaysia, this study focuses on riders who registered as members of the Malaysian P-Hailing Association, PENGHANTAR. A total of 225 food delivery riders participated in the online survey conducted through Google Form. Categorical data analysis techniques were used to examine the different characteristics of food delivery riders with and without traffic crash experiences. Results show that the odds ratio of young and full-time riders are respectively about 2.05 times and 1.79 times higher than being involved in traffic crashes. Other factors that increase the odds of being involved in traffic crashes include having more than two years of experience in delivery, an average distance travelled of>100 km a day, working previously in the food and grocery sector, and without working experience. The findings from this study will help related agencies to design and develop awareness programs targeting this group of riders.
  19. Chopra H, Dhawan M, Bibi S, Baig AA, Kushwah AS, Kaur M, et al.
    Int J Surg, 2022 Sep;105:106896.
    PMID: 36089263 DOI: 10.1016/j.ijsu.2022.106896
    MeSH terms: Humans; Vaccines*; Monkeypox*
  20. Mohd Ariff NS, Abdul Halim Zaki I, Mohd Noordin Z, Md Hussin NS, Goh KW, Ming LC, et al.
    J Clin Med, 2022 Oct 08;11(19).
    PMID: 36233801 DOI: 10.3390/jcm11195934
    Background: Thrombotic conditions triggered by SARS-CoV-2 virus can result in high mortality, especially in pregnant women as they are already in a hypercoagulability state. This thereby leads to excessive inflammation that will increase the risk of thromboembolic (TE) complications. Objective: The aim of this study is to review the prevalence of thromboembolic complications such as deep venous thrombosis, pulmonary embolism, and intervillous thrombosis, and their preventive strategies among pregnant women infected with COVID-19. Method: The articles were retrieved from online databases PubMed and ScienceDirect published from February 2020 to April 2022. Findings: A total of 5249 participants including 5128 pregnant women and 121 placentas from 19 studies were identified for having TE complications after being infected with COVID-19. The types of TE complications that developed within pregnant women were disseminated intravascular coagulation (DIC) (n = 44, 0.86%), unmentioned thromboembolic complications (TE) (n = 14, 0.27%), intervillous thrombosis (IVT) (n = 9, 0.18%), pulmonary embolism (PE) (n = 6, 0.12%), COVID-19 associated coagulopathy (CAC) (n = 5, 0.10%), and deep venous thrombosis (DVT) (n = 2, 0.04%). Whereas the prevalence of TE complications reported from studies focusing on placenta were IVT (n = 27, 22.3%), subchorionic thrombus (SCT) (n = 9, 7.44%), and placental thrombosis (n = 5, 4.13%). Thromboprophylaxis agent used among pregnant women include low molecular weight heparin (LMWH) at prophylactic dose (n = 9). Conclusions: The prevalence of thromboembolic complications among pregnant women infected by COVID-19 is low with DIC being the most common form and placental thrombosis being the least common form of TE complications that occurred within pregnant women infected with COVID-19. Anticoagulation, in particular LMWH (variable dose), is frequently used to prevent TE complications.
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