Issue 2: Reimagining Child Welfare Systems in Canada

Contributions to volume 28:1 of the JLSP offered poignant insights into the root sources of the overrepresentation of Indigenous and African Canadian children and families in state child welfare systems, highlighting the role of poverty, racism, discrimination, and ongoing colonial violence. The contributions to this volume, 28:2, offer insights to deepen our understanding of the roots of overrepresentation, as well as concrete strategies with the potential to dramatically improve outcomes for children, families, and communities. As with volume 28:1, the contributions here arise from a symposium, Reimagining Child Welfare Systems in Canada, held 21 October 2016 and co-hosted by the JLSP, the First Nations Child and Family Caring Society of Canada, the African Canadian Legal Clinic, and The Action Group on Access to Justice (TAG) of the Law Society of Ontario. The symposium brought together community members, practitioners, academics, and students to explore how state child welfare systems have failed Indigenous and African Canadian communities and to share alternatives that communities have implemented, planned, and/or imagined

Pairing craft-making with Mandarin eBooks: An investigation into the use of craft for language learning by pre-schoolers

Bilingual ethnic Chinese parents are concerned about their preschoolers’ learning of their mother tongue. Many allow their children to learn Mandarin by accessing language applications on mobile devices. However the effectiveness of solely using mobile devices as a learning tool for preschoolers is debatable. This paper presents a field investigation on how adult-facilitated craft-making, generates greater interest the reading of Mandarin eBooks and retention of the stories. The data suggests pairing of activities may be useful to children from across language abilities. This also highlights a need for designers and educators to formulate a holistic design approach in the development of preschool mobile learning content

Use of a Novel Oleaginous Microorganism As a Potential Source of Lipids For Weanling Pigs

Weanling pigs are at risk of succumbing to illness due to an immature immune system and insufficient supply of available energy at the time of weaning. This study was aimed at determining whether oleaginous bacteria could serve as a source of lipids to weanling pigs. Weanling pigs were provided a daily dose of 1×109 colony fomring unit (CFU) = kg−1 of the novel oleaginous Enterobacter cloacae strain JD6301 or JD8715 (which is a variant form of JD6301 capable of producing extracellular triglycerides) via oral gavage for 5 d. Serum was collected every 6 h and intestinal samples were collected at 6 d. Providing pigs with JD6301 or JD8715 significantly increased serum concentrations of triglycerides and non-esterified fatty acids (NEFA) within 72 h. Additionally, the JD6301 and JD8715 strains were able to survive within the gastrointestinal tract throughout the duration of the study. These results suggest that providing Enterobacter cloacae can increase the serum lipids in the pigs, thus potentially providing an additional source of energy to animals during times of stress. This could potentially help improve the metabolic response of animals during times of stress

Trematode Parasite Infection Affects Temperature Selection in Aquatic Host Snails

Animals infected by parasites or pathogens can exhibit altered behaviors that may reduce the costs of infection to the host or represent manipulations that benefit the parasite. Given that temperature affects many critical physiological processes, changes in thermoregulatory behaviors are an important consideration for infected hosts, especially ectotherms. Here we examined the temperature choices of freshwater snails (Helisoma trivolvis) that were or were not infected by a trematode (flatworm) parasite (Echinostoma trivolvis). Active snails that explored the experimental temperature gradient differed in their thermal preference based on their infection status, as parasitized snails chose to position themselves at a significantly higher temperature (mean: 25.4°C) compared to those that were uninfected (mean: 23.3°C). Given that snails rarely eliminate established trematode infections, we suggest that this altered thermal preference shown by infected hosts likely benefits the parasite by increasing the odds of successful transmission, either through enhanced production and emergence of infectious stages or by increasing spatial overlap with the next hosts of the complex life cycle. Further studies that employ experimental infections to examine temperature selection at different time points will be needed to understand the extent of altered host thermal preferences, as well as the possible benefits to both host and parasite

Hybrid prevalence estimation: Method to improve intervention coverage estimations

Delivering excellent health services requires accurate health information systems (HIS) data. Poor-quality data can lead to poor judgments and outcomes. Unlike probability surveys, which are representative of the population and carry accuracy estimates, HIS do not, but in many countries the HIS is the primary source of data used for administrative estimates. However, HIS are not structured to detect gaps in service coverage and leave communities exposed to unnecessary health risks. Here we propose a method to improve informatics by combining HIS and probability survey data to construct a hybrid estimator. This technique provides a more accurate estimator than either data source alone and facilitates informed decision-making. We use data from vitamin A and polio vaccination campaigns in children from Madagascar and Benin to demonstrate the effect. The hybrid estimator is a weighted average of two measurements and produces SEs and 95% confidence intervals (CIs) for the hybrid and HIS estimators. The estimates of coverage proportions using the combined data and the survey estimates differ by no more than 3%, while decreasing the SE by 1-6%; the administrative estimates from the HIS and combined data estimates are very different, with 3-25 times larger CI, questioning the value of administrative estimates. Estimators of unknown accuracy may lead to poorly formulated policies and wasted resources. The hybrid estimator technique can be applied to disease prevention services for which population coverages are measured. This methodology creates more accurate estimators, alongside measured HIS errors, to improve tracking the public's health