This paper attempts to ascertain the impacts of population density on the spread and severity of COVID-19 in Malaysia. Besides describing the spatio-temporal contagion risk of the virus, ultimately, it seeks to test the hypothesis that higher population density results in exacerbated COVID-19 virulence in the community. The population density of 143 districts in Malaysia, as per data from Malaysia’s 2010 population census, was plotted against cumulative COVID-19 cases and infection rates of COVID-19 cases, which were obtained from Malaysia’s Ministry of Health official website. The data of these three variables were collected between 19 January 2020 and 31 December 2020. Based on the observations, districts that have high population densities and are highly inter-connected with neighbouring districts, whether geographically, socio-economically, or infrastructurally, tend to experience spikes in COVID-19 cases within weeks of each other. Using a parametric approach of the Pearson correlation, population density was found to have a moderately strong relationship to cumulative COVID-19 cases (p-value of 0.000 and R2 of 0.415) and a weak relationship to COVID-19 infection rates (p-value of 0.005 and R2 of 0.047). Consequently, we provide several non-pharmaceutical lessons, including urban planning strategies, as passive containment measures that may better support disease interventions against future contagious diseases.

Little attention has been paid to the impacts of institutional–human–environment dimensions on the outcome of Coronavirus disease 2019 (COVID-19) abatement. Through the diagnostic social–ecological system (SES) framework, this review paper aimed to investigate what and how the multifaceted social, physical, and governance factors affected the success level of seven selected Asia-Pacific countries (namely, South Korea, Japan, Malaysia, Singapore, Vietnam, Indonesia, and New Zealand) in combatting COVID-19. Drawing on statistical data from the Our World In Data website, we measured the COVID-19 severity or abatement success level of the countries on the basis of cumulative positive cases, average daily cases, and mortality rates for the period of 1 February 2020 to 30 June 2020. A qualitative content analysis using three codes, i.e., present (P), partially present (PP), and absent (A) for each SES attribute, as well as score calculation and rank ordering for government response effectiveness and the abatement success level across the countries, was undertaken. Not only did the standard coding process ensure data comparability but the data were deemed substantially reliable with Cohen’s kappa of 0.76. Among 13 attributes of the SES factors, high facility adequacy, comprehensive COVID-19 testing policies, strict lockdown measures, imposition of penalty, and the high trust level towards the government seemed to be significant in determining the COVID-19 severity in a country. The results show that Vietnam (ranked first) and New Zealand (ranked second), with a high presence of attributes/design principles contributing to high-level government stringency and health and containment indices, successfully controlled the virus, while Indonesia (ranked seventh) and Japan (ranked sixth), associated with the low presence of design principles, were deemed least successful. Two lessons can be drawn: (i) having high number of P for SES attributes does not always mean a panacea for the pandemic; however, it would be detrimental to a country if it lacked them severely, and (ii) some attributes (mostly from the governance factor) may carry higher weightage towards explaining the success level. This comparative study providing an overview of critical SES attributes in relation to COVID-19 offers novel policy insights, thus helping policymakers devise more strategic, coordinated measures, particularly for effective country preparedness and response in addressing the current and the future health crisis.

In Malaysia, terraced housing hardly provides thermal comfort to the occupants. More often than not, mechanical cooling, which is an energy consuming component, contributes to outdoor heat dissipation that leads to an urban heat island effect. Alternatively, encouraging natural ventilation can eliminate heat from the indoor environment. Unfortunately, with static outdoor air conditioning and lack of windows in terraced houses, the conventional ventilation technique does not work well, even for houses with an air well. Hence, this research investigated ways to maximize natural ventilation in terraced housing by exploring the air well configurations. By adopting an existing single storey terraced house with an air well, located in Kuching, Sarawak, the existing indoor environmental conditions and thermal performance were investigated and monitored using scientific equipment, namely HOBO U12 air temperature and air humidity, the HOBO U12 anemometer and the Delta Ohm HD32.3 Wet Bulb Globe Temperature meter. For this parametric study, the DesignBuilder software was utilized. The field study illustrated that there is a need to improve indoor thermal comfort. Thus, the study further proposes improvement strategies to the existing case study house. The proposition was to turn the existing air well into a solar chimney taking into account advantages of constant and available solar radiation for stack ventilation. The results suggest that the enhanced air well was able to improve the indoor room air velocity and reduce air temperature. The enhanced air well with 3.5 m height, 1.0 m air gap width, 2.0 m length was able to induce higher air velocity. During the highest air temperature hour, the indoor air velocity in existing test room increased from 0.02 m/s in the existing condition to 0.29 m/s in the hottest day with 2.06 °C air temperature reduction. The findings revealed that the proposed air well could enhance the thermal and ventilation performance under the Malaysia tropical climate.

There are severe issues of public open space (POS) underinvestment and overexploitation. However, few studies have been conducted on the property rights structure and its impacts on rural commons governance, specifically concerning local neighbourhood residential POS quality and sustainability. The social-ecological system framework and the new institutional economics theory were employed to examine the local diverse property rights system and its effects on the emergence of POS dilemmas. Rural commons covering neighbourhood residential Country Lease (CL) and Native Title (NT) POS from the districts of Kota Kinabalu and Penampang, Sabah Malaysia were selected. A mixed-method phenomenological case study, involving multi-stakeholders’ perspectives across public-private-user sectors, was employed. This study revealed four main interconnected property rights issues, including attenuated rights, incomplete rights, maladaptive rights, and security-based de facto perceptive rights, under the complex state-private regime, which incentivise the opportunistic behaviour of individuals in externalising POS commons dilemmas. The findings further inferred that the local diverse property rights issues and POS dilemmas caused, and are associated with, other rights issues and dilemmas, forming a rights-dilemmas nexus. Not only do the institutional failures actuate POS dilemmas, but the former also engender other forms of property rights failures, while the latter cause other POS dilemmas. This paper suggests policy and management insights to public officials, in which the importance of the institutional-social-POS behavioural factor and the re-engineering of POS governance via adaptive property rights realignment are emphasised.

Little attention has been paid to the impacts of institutional–human–environment dimen-sions on the outcome of Coronavirus disease 2019 (COVID-19) abatement. Through the diagnosticsocial–ecological system (SES) framework, this review paper aimed to investigate what and howthe multifaceted social, physical, and governance factors affected the success level of seven selectedAsia-Pacific countries (namely, South Korea, Japan, Malaysia, Singapore, Vietnam, Indonesia, andNew Zealand) in combatting COVID-19. Drawing on statistical data from the Our World In Data web-site, we measured the COVID-19 severity or abatement success level of the countries on the basis ofcumulative positive cases, average daily cases, and mortality rates for the period of 1 February 2020to 30 June 2020. A qualitative content analysis using three codes, i.e., present (P), partially present(PP), and absent (A) for each SES attribute, as well as score calculation and rank ordering for govern-ment response effectiveness and the abatement success level across the countries, was undertaken.Not only did the standard coding process ensure data comparability but the data were deemedsubstantially reliable with Cohen’s kappa of 0.76. Among 13 attributes of the SES factors, highfacility adequacy, comprehensive COVID-19 testing policies, strict lockdown measures, imposition ofpenalty, and the high trust level towards the government seemed to be significant in determiningthe COVID-19 severity in a country. The results show that Vietnam (ranked first) and New Zealand(ranked second), with a high presence of attributes/design principles contributing to high-levelgovernment stringency and health and containment indices, successfully controlled the virus, whileIndonesia (ranked seventh) and Japan (ranked sixth), associated with the low presence of designprinciples, were deemed least successful. Two lessons can be drawn: (i) having high number of P forSES attributes does not always mean a panacea for the pandemic; however, it would be detrimentalto a country if it lacked them severely, and (ii) some attributes (mostly from the governance factor)may carry higher weightage towards explaining the success level. This comparative study providingan overview of critical SES attributes in relation to COVID-19 offers novel policy insights, thushelping policymakers devise more strategic, coordinated measures, particularly for effective countrypreparedness and response in addressing the current and the future health crisis.