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Quantum Approximate Optimization Algorithm (QAOA) is a promising hybrid quantum-classical algorithm for solving combinatorial optimization problems. However, it cannot overcome qubit limitation for large-scale problems. Furthermore, the execution time of QAOA scales exponentially with the problem size. We propose a Divide-and-Conquer QAOA (DC-QAOA) to address the above challenges for graph maximum cut (MaxCut) problem. The algorithm works by recursively partitioning a larger graph into smaller ones whose MaxCut solutions are obtained with small-size NISQ computers. The overall solution is retrieved from the sub-solutions by applying the combination policy of quantum state reconstruction. Multiple partitioning and reconstruction methods are proposed/ compared. DC-QAOA achieves 97.14% approximation ratio (20.32% higher than classical counterpart), and 94.79% expectation value (15.80% higher than quantum annealing). DC-QAOA also reduces the time complexity of conventional QAOA from exponential to quadratic.

Introduction: Background: Constipation is a symptom, not a disease, every person in this world experiences constipation at some point in their real life. However, the prevalence of constipation in childhood is more but it is still under-appreciated in paediatric age group. Considering childhood constipation being one of the underappreciated and mismanaged health problems, the faculty members of paediatric surgery department, BSMMU approved a consensus of guideline of management of childhood constipation. It thus assists health care workers in the management of all of the children with constipation in all the level of care i.e. primary, secondary, and tertiary care. Methods: The faculty members of paediatric surgery department of BSMMU addressed the problem of constipation in infants and children who had no previously established medical condition. To develop the initial evidence-based guideline, articles on constipation published in English were found using Medline, Embase and Cochrane Database of Systematic Reviews. Result: The guidelines provide recommendations for the diagnostic evaluation of children presenting with constipation and treatment of children with functional constipation to standardize and improve their quality of care. In this study, two guidelines were developed, the first guideline for the evaluation and treatment of infants 6 months of age. Conclusion: Constipation is globally underappreciated problem and should be evaluated thoroughly. Constipation due to functional or organic cause should be identified. Management protocol should be adapted as per the guideline shown in fig. 1 and fig. 2. Emphasis should be laid on toilet-training, feeding habit and importantly in counselling particularly related to long term usage of medical therapy.

Background: Globally, neurologic disorders are very common and describe a significant public health problem. Innovative strategies are needed to cease the progression of the neurologic epidemic in resource-poor settings in Bangladesh. Clear concept of socio-demographic and clinical profile of neurological patients may be helpful in the management of such patients. But in Bangladesh, we have very limited research-based data regarding these issues. aThe aim of this study was to form the socio-demographic and clinical profile of neurological patients. Methods: This was a prospective observational study which was conducted from January 2021 to June 2021 by consecutive sampling technique on the patients admitted to the adult Neurology unit of Chittagong Medical College & Hospital, Bangladesh. For this intervention, the ethical clearance was obtained from BMRC. Data were collected and recorded from appropriately consented cases by maintaining confidentiality by face-to-face interviews (or from attendants if the patient cannot respond appropriately), laboratory data from hospital records and pre-hospital treatment from previous records with the patient. All data were cleaned and analyzed by SPSS version 22.0 and presented in tables. Results: In this current study, among total participants, 53% were male and 47% were female. Most of our participants were educated up to SSC level (50%) and the majority of them were Muslims (84%). The mean ±SD age of the participants was 55±0.73 years and most of them were from rural areas (74%). Among total acute confusional state patients (6%), the most common presenting symptom was decreased alertness: 88%. Among 74% stroke patients, 5% cases with CNS infections and among 15% patients with other diseases, the most frequent presenting symptoms were muscle weakness in 90%, decreased alertness in 68% and again decreased alertness in 52% respectively. In this study, majority of the patients had a stroke (74%), followed by others: 58 (10%), ...

Background: Neurological disorders are a common and significant public health problem globally, and innovative strategies are needed to address the epidemic in resource-poor settings in Bangladesh. The aim of this study was to evaluate the burden and features of neurological diseases requiring hospitalization in a tertiary care hospital in Chittagong, Bangladesh. Methods: This study was a prospective observational study conducted from January to June 2021 on patients admitted to the adult neurology unit of a hospital in Chittagong, Bangladesh. Data was collected through face-to-face interviews, laboratory data, and previous medical records, and in-hospital complications and outcomes were recorded. The data was cleaned and analysed using SPSS and presented in tables. Results: In this study, stroke was the most common neurological condition requiring hospitalization, accounting for 74% of cases and leading to death in 73% of cases. The most frequent in-hospital complication was urinary tract infection (26%), mostly in stroke patients. Of stroke patients, 88% had incomplete recoveries at discharge, while 7% died. Hypertension was the most common risk factor present in both acute confusional state and stroke cases. The median duration of hospital stay was longest among patients with central nervous system infections. Conclusions: Stroke dominates the burden of neurological diseases requiring hospitalization in tertiary care hospitals in Bangladesh. The most frequent in-hospital complication was urinary tract infections, mostly in stroke cases. The overall in-hospital mortality was 7%, most patients recovered incompletely at discharge (82%).

PurposeThe purpose of this study is to examine the antecedents of consumer engagement with supermarkets' social media accounts. Drawing on regulatory fit theory and social sharing of emotions theory, the authors test if the content posted on the social media brand pages of supermarkets dealing with a topic of high social relevance, such as the COVID-19 pandemic, stimulates social media consumer engagement and if and how the engagement is mediated by the arousal of positive and negative emotions.Design/methodology/approachThe authors retrieved data from the Facebook accounts of the top 20 European supermarkets identified in the Deloitte 2020 Global Powers of Retailing report during the first wave of the pandemic from 1 March to 30 June 2020, collecting a sample of 2,524 posts from 8 different countries. After a content analysis to classify COVID-19 content, the authors applied the Baron and Kenny (1986) methodology to verify the hypothesised relationships.FindingsThe findings highlight a positive direct relationship between the social relevance of a topic (COVID-19) and social media consumer engagement mediated by the arousal of positive and negative emotions.Originality/valueTo the best of the authors’ knowledge, this is one of the earliest empirical research using Facebook data to investigate the role of the social relevance of content as an antecedent of social media consumer engagement with a specific focus on supermarkets. The paper contributes to the stream of social media literature investigating the antecedents of social media engagement behaviour, exploring the role of topics' choice and aroused emotions, which to date are both under-investigated.

Chest CT scans of 200 symptomatic patients infected with COVID 19 from different health facilities and home were reviewed for common CT findings in relationship with their clinical symptoms, comorbidities and the time between symptom onset and the initial CT scan was studied in this cross-sectional study. Cases were categorized into three groups according to the timing of HRCT, 10 cases were in early (0-2days), 56 cases in intermediate (3-5days) and 110 cases were in late (6-12days) groups. Chest CT scan images showed bilateral peripheral ground glass opacities 96.63%, pulmonary consolidations 15.9%. Notably 29.54% patient had normal CT scan chest and 60% of them were imaged at early phase. With a longer duration of symptoms, chest CT findings were more typical including GGO, consolidation with greater total lung involvement. Bilateral peripheral GGO was observed in 20% patients at early phase while 53.57% and 64.54% were observed at intermediate and late phase of illness. Among the symptoms cough and dyspnea were observed more related with typical CT changes (95%). Diabetes and Hypertension (58% of patients) were the leading comorbidities that were found related with GGO and other typical CT findings. Mean time duration between symptom onset and positive RT PCR, CT scan changes were 4.79 and 7.55 respectively. Central Medical College Journal Vol 5 No 2 Jul 2021 PP 70-75

Purpose Building on the social marketing theory, this study aims to examine the relationship between family units and obesity in Nigeria; and the social marketing interventions used to reduce and prevent obesity in the Nigerian society. Design/methodology/approach This study adopted a semi-structured interview research design with 42 obese individuals in Nigeria. Findings The study findings show that the family unit an individual grows up in influences their consumption behaviour, which drives their obesity. The findings reveal that obese Nigerian citizens are willing to live a healthier lifestyle due to the direct and indirect medical costs associated with obesity. Furthermore, the findings disclose the social marketing interventions – local celebrity endorsements, healthy lifestyle promotions, reduced gym membership and affordable access to healthy foods and services – used to prevent and reduce the rising obesity rates in the Nigerian society. Research limitations/implications The findings have important theoretical implication given the focus on consumption behaviour and obesity. Practical implications The study findings provide an avenue to guide government officials, policymakers and social marketers in shaping their public policy and social marketing interventions to encourage healthier consumption and lifestyle behaviours among families and individuals in the Nigerian society. Originality/value To the best of the authors’ knowledge, this is the first research study to investigate how family units in the emerging market of sub-Saharan Africa drive obesity and the social marketing interventions used to reduce and prevent obesity. Theoretical and practical implications are discussed.

Purpose The organizations focus on environmental factors as stakeholders exert pressure to reduce the environmental influence arising from production tasks. This study aims to see the influence of the environmental management control system (MCS) package and perceived environmental uncertainty on green performance with the mediating role of green dynamic capabilities in Pakistani manufacturing organizations. Moreover, this study aims to see the moderating role of investment in environmental management between green dynamic capabilities and green performance. Design/methodology/approach The partial least square structural equation modeling technique is used to test hypotheses. The data was collected through questionnaires using simple random sampling, and a total of 404 questionnaires were used in the final analysis. The data was collected from September 2021 to November 2021. Multiple regression analysis followed to see the influence of environmental MCS package, perceived environmental uncertainty, green dynamic capabilities and investment in environmental management on green performance. Findings Environmental MCS package, green dynamic capabilities and investment in environmental management are positively related to green performance. Despite this, perceived environmental uncertainty is negatively related to green performance. Moreover, green dynamic capabilities significantly mediate between environmental MCS package, perceived environmental uncertainty and green performance. Finally, investment in environmental management significantly moderates between green dynamic capabilities and green performance. Practical implications This research covers vital issues that how top management uses the environmental MCS package, perceived environmental uncertainty, green dynamic capabilities and investment in environmental management in determining green performance. Originality/value This research adds value to the existing literature by focusing on predictors that determine green performance. This pioneering study observes the influence of environmental MCS package and perceived environmental uncertainty on green performance and green dynamic capabilities as mediators by applying natural resource-based view theory. Moreover, investment in environmental management is used as a moderator between green dynamic capabilities and green performance. Finally, this study can benefit management, industrial policymakers and academicians.

It is widely accepted that administrative staff, as important components of a university’s workforce, play a critical role in realizing the United Nations’ Sustainable Development Goals (SDGs). The worth of administrative staff is based on their productivity, and this has a significant impact on the viability of universities. Based on the job demands–resources model, this study investigates the antecedents of job burnout among administrative staff from both emotional and interpersonal perspectives, taking into account SDGs 3, 4, and 8. In this paper, a quantitative research method using descriptive and inferential analyses explores the complex interplay between job autonomy, emotional job demands, colleague support, and job burnout, with a particular emphasis on the role of emotion regulation. A questionnaire was answered anonymously by 1009 administrative staff members in China, and the results conclude that job autonomy was negatively associated with job burnout, while emotional job demands were positively linked to burnout. Moreover, leader support emerged as more beneficial to workers than colleague support. Emotion regulation strategies such as reappraisal function as an important personal resource that buffers the negative effects of job demands and enhances job resources, leading to lower levels of burnout. Furthermore, this study examines how the SDGs can be achieved through reducing job burnout. The important implications for university administrative staff and policymakers, as well as the sustainable development of universities, are discussed.

PurposeThe main aim of this research was to investigate whether and how digitalization affects sustainability and performance in wine tourism.Design/methodology/approachBased on the data emerging from the 2019 National Report on Wine Tourism from the National Association of “Wine Cities” in Italy (the most extreme case in the world of wine), three macro-agglomerates were investigated: digitalization, sustainability and performance, adopting descriptive and inferential statistics.FindingsAlthough rigorous correlation between adopted digitalization and performed sustainability on one side and performed sustainability and market performance on the other cannot be verified for the 92 wineries under investigation, there is visible evidence that the more digitalized wineries are, the more sustainable they become and the better their performance. Evidence was not found to support the idea that the more sustainable wineries are, the more they are digitalized and the better their performance. Research implications and limitations to theoretical and practical application have been discussed.Originality/valueWine tourism, which is naturally associated with rural tourism, is a form of tourism in which sustainability has strong relevance, particularly considering the future needs/desires of post-pandemic tourists. At the same time, digitalization, especially in pandemic and post-pandemic tourism, is credited with developing a huge impact in this business, although wine tourism is most probably conceivable as a meta-market, with a strong cultural essence. In this respect, a digitalization > sustainability > performance approach seems practicable and globally profitable.

Mungbean [Vigna radiata (L.) Wilczek] is an important food, feed, and cash crop in rice-based agricultural ecosystems in Southeast Asia and other continents. It has the potential to enhance livelihoods due to its palatability, nutritional content, and digestibility. We evaluated 166 diverse mungbean genotypes in two seasons using multivariate and multi-traits index approaches to identify superior genotypes. The total Shannon diversity index (SDI) for qualitative traits ranged from moderate for terminal leaflet shape (0.592) to high for seed colour (1.279). The analysis of variances (ANOVA) indicated a highly significant difference across the genotypes for most of the studied traits. Descriptive analyses showed high diversity among genotypes for all morphological traits. Six components with eigen values larger than one contributed 76.50% of the variability in the principal component analysis (PCA). The first three PCs accounted for the maximum 29.90%, 15.70%, and 11.20% of the total variances, respectively. Yield per plant, pod weight, hundred seed weight, pod length, days to maturity, pods per plant, harvest index, biological yield per plant, and pod per cluster contributed more to PC1 and PC2 and showed a positive association and positive direct effect on seed yield. The genotypes were grouped into seven clusters with the maximum in cluster II (34) and the minimum in cluster VII (10) along with a range of intra-cluster and inter-cluster distances of 5.15 (cluster II) to 3.60 (cluster VII) and 9.53 (between clusters II and VI) to 4.88 (clusters I and VII), suggesting extreme divergence and the possibility for use in hybridization and selection. Cluster III showed the highest yield and yield-related traits. Yield per plant positively and significantly correlated with pod traits and hundred seed weight. Depending on the multi-trait stability index (MTSI), clusters I, III, and VII might be utilized as parents in the hybridization program to generate high-yielding, disease-resistant, and small-seeded mungbean. Based on all multivariate-approaches, G45, G5, G22, G55, G143, G144, G87, G138, G110, G133, and G120 may be considered as the best parents for further breeding programs.

PurposeThis study examines whether students graduating from SSC-VOC perform better in diploma engineering programs.Design/methodology/approachThis study uses quantitative and qualitative methods to examine how secondary school certificate-vocational (SSC-VOC) graduates perform in their subsequent vocational programs.FindingsDespite having vocational training orientation, this study finds that graduates from SSC-VOC receive lower grades than their public counterparts by 0.109 cumulative grade points average (CGPA).Social implicationsFindings imply that policymakers should increase teachers' numbers, salaries and laboratory facilities. In addition, collaboration between SSC-VOC institutions and polytechnics would allow them to offer a quality engineering education. In such a way, technical and vocational education and training (TVET) programs prepare human resources to promote economic development and employment, expand production opportunities and improve employment quality.Originality/valueThis is the first piece of work conducted in Bangladesh that has examined the quality of VET graduates for furthering their studies. This study added value by providing some pragmatic suggestions for practical implications.

This study examines the effect of remittances on selected recipient countries’ financial development. Using weights for bilateral remittances from 1990 to 2015, this study calculates the weighted gross national income per capita of remittance-sending countries. This study then uses the weighted gross national income as an instrument to address the endogeneity between remittance and financial development. Using the instrument variable (IV) model, this study finds that remittances from low-skilled migrant-abundant sending countries have different effects than the highly skilled labor-abundant sending countries. Assuming the Gulf Cooperation Council (GCC) countries as a source of low-skilled and the Group of Seven (G7) as the source of high-skilled labor-abundant sending countries, remittance from relatively low-skilled emigrants has a greater impact on financial inclusion in the recipient countries than their high-skilled counterparts. In contrast, remittance from high-skilled countries has a greater impact on the development of the stock market. Similar types of effects of remittance on financial development have also been observed during the COVID-19 pandemic. The results suggest that policymakers should provide better foreign employment opportunities and improved transaction and investment policies in the home financial markets.

Purpose This study aims to observe the influence of environmental management accounting (EMA) and environmental knowledge management (KM) practices on environmental performance with mediating role of top management support (TMS). Moreover, green work climate perception (GWCP) is used as a moderator between TMS and environmental performance. Design/methodology/approach Partial least square-structural equation modeling is used to test research hypotheses. Data was collected to distribute questionnaires in light of the purposive sampling technique; a total of 329 questionnaires were used for final analysis. This study is correlational and cross-sectional. Multiple regression analysis was used to see the influence of EMA, environmental KM practices, TMS and GWCP on environmental performance. Findings The results reveal that EMA, environmental KM practices and TMS are positively related to environmental performance. Moreover, TMS significantly mediates between EMA, environmental KM practices and environmental performance. GWCP is positively associated with environmental performance. Finally, GWCP significantly strengthens the positive relationship between TMS and environmental performance. Practical implications This study highlighted a significant issue that of how top management uses EMA, environmental KM practices, TMS and GWCP in examining environmental performance. Moreover, this study covers the gap and supports top management to concentrate on exogenous variables to examine environmental performance. Originality/value This study adds value to literature to focus on factors that influence environmental performance. This initial research observes the influence of EMA and environmental KM practices on environmental performance with TMS as a mediator in light of the knowledge-based view. Besides, GWCP is used as a moderator between TMS and environmental performance. Finally, our research can provide benefits to researchers, students and managers.