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Covid-19 pandemic was a stress test to Pakistan’s healthcare systems, social policies, and political stability. This study explores Pakistanis’ lived experiences during the advent of the Covid-19 pandemic, including the impacts of Covid-19 on their livelihood, as well as their perceptions and opinions of their government’s policy measures. Through a questionnaire survey of 1000 participants living in the cities of Islamabad and Rawalpindi, this study found that livelihood, including food supply and household finance were main challenges facing many Pakistanis during the Covid-19 pandemic; and the level of vulnerabilities were tightly related to socio-demographic characteristics like gender, living arrangement, and sector of employment. Men are more likely to suffer from hunger, and men work in the informal sector and living in a multigeneration (or multi-nuclear household) tend to be more vulnerable than others. Almost all employed respondents reported income deduction and most of them reported the increase of household expenditure during the pandemic. The mixed opinions on the government’s Covid-19 measures and policies were associated to respondents’ socio-demographic characteristics. There were sharp gender differences as well. Men were more in agreement with the government’s policies than women, which implies a gender based information access disparity.

The voltage-source grid-supporting inverters (GSIs) are important to establish and support the frequency and voltage of a microgrid (MG) in both islanded and grid-connected modes. Traditionally, a cascaded control strategy that includes an external droop-based control loop and an inner proportional-integral (PI) based voltage and current control loop is adopted to control a GSI, which shows barely inertia and limited control performance. In this paper, a novel cascaded control strategy is proposed for a GSI. In the external loop, a VSG-based control strategy is adopted to increase the frequency stability of the MG, and a novel synchronization control method that does not use a complex PLL unit is proposed to satisfy the plug-and-play requirements of a GSI. In the inner voltage and current control loop, the paper proposes an SMC-based vector control strategy which uses the fixed switching frequency and inherits the robustness and fast response speed of the SMC control. Both simulation and experiments demonstrate the effectiveness and improved performance of the proposed control strategy.

In order to improve the accuracy and performance of traditional image threshold segmentation algorithm, this paper proposes a multithreshold segmentation method named improved Harris hawk optimization (IMHHO). Firstly, IMHHO adopts Tent map and elite opposition-based learning to initialize population and enhance the diversity. Secondly, IMHHO uses quadratic interpolation to generate new individuals and enhance the local search ability. Finally, IMHHO adopts improved Gaussian disturbance method to disturb optimal solution, which coordinates the local and global search ability. Then, the performance of IMHHO is tested based on 14 benchmark functions. In image segmentation, different algorithms are tested to compare the comprehensive performance based on Otsu and Renyi entropy. Experiments show that IMHHO performs better in the three kinds of benchmark functions; the segmentation effect is directly proportional to the number of thresholds; compared with other algorithms, IMHHO has better comprehensive performance.

Objectives: Adult Day Programs (ADPs) have been playing an important role providing services to community dwelling elders and their families in health-related prevention, intervention, and family caregiver support. At the time when there is a high prevalence of dementia among older elders, demand for such services will grow. Learn the experiences of ADPs can help identifying service gaps, which are crucial for developing measures to improve such programs’ effectiveness. Methods: This is a case study on the ADPs at the Toronto Geriatric Centre with qualitative research strategy. Interviews and focus group discussions were the data collection methods employed to gather feedbacks from its staff members, clients, and family caregivers. Results: The ADPs at the TGC are helpful to their clients and their families, but have issues in language accessibility, physical accessibility (programs’ schedule and transportation), financial accessibility (affordability), and care accessibility-there is a lack of professional caregivers for those participants who need onsite care. Discussion: The high prevalence of dementia among ADPs’ clients and the resource shortage are the main difficulties facing the TGC. If it was to achieve its intended goal, more resources are needed for their improvements in accessibility, which would involve a user-friendly operation schedule, free or minor-cost transportation, and sufficient program staffing that include professional caregivers. Covid-19 pandemic poses challenges to the entire eldercare sector. ADPs’ post-pandemic arrangements should address emerging needs of the elders they serve. Community elders, especially those persons with dementia, and their families need ADPs for aging at home.

More than eight million Canadians are providing care for their aging family members, relatives, neighbours, or friends. Due to staff shortage, eldercare facilities are also relying on their residents’ families to fill the gap of the care needs. Caregiving responsibilities have forced many employees to take time-off from work or take early retirement, which is a heavy loss of productivity of Canada’s national economy. This study employed a mixed method strategy, and with both qualitative and quantitative data collection methods: interview, focus group discussion, and a questionnaire survey. It shows that Canadians must take time off from work or to leave jobs for providing care to their loved ones, even when they are residing in a long-term care setting. This seemingly private matter is a very public one in the other side of the coin: family caregivers’ lost time in employment is affecting Canada’s national economy significantly. Government should work with stakeholders to develop a national strategy to tackle the issue. COVID-19 outbreak has revealed long-term care institutions’ struggle with severe staff shortage in Canada.