Teaching Recursive Thinking using Unplugged Activities

Traditionally, recursion is primarily taught using coding activities, presenting a high cognitive load for novice programmers. A possible method to teach recursion to novice programmers is the use of unplugged activities, engaging tasks not involving coding. Despite having been shown to improve students’ understanding of computational thinking, it has been argued that unplugged activities alone are not effective to teach recursion. In response, the authors engaged novice programmers who are non-computer science students by utilising unplugged visual activities to illustrate basic recursion concepts. Thereafter, the students were shown how to implement the activities with coding. The authors created three activities that illustrate recursion using breadth-first search (BFS) and depth-first search (DFS) algorithms. An evaluation study with 19 students was conducted in an on-line teaching environment. Empirical results show that most students learned the covered activities. Further, the students reported that the activities were engaging, and helped them learn how to think recursively

Two cases of Pentalogy of Cantrell diagnosed antenatally at Korle Bu Teaching Hospital, Accra

Pentalogy of Cantrell is a rare congenital malformation syndrome that may be associated with other congenital anomalies. The syndrome is said to affect males and females in equal numbers and the prognosis is generally poor. We report two cases of Cantrell’s Pentalogy diagnosed antenatally at the Korle Bu teaching Hospital. The 2 cases described in this report demonstrate the complete and incomplete variant of the syndrome. The cases were referred as an omphalocoele and a detailed anomaly scan confirmed the diagnosis of Pentalogy of Cantrell. Both cases were females and neither survived beyond 24 hours. Although this condition is associated with a poor prognosis, there have been some reported cases of survival in the literature. Thus, accurate prenatal diagnosis and a multidisciplinary approach to the management may offer improved outcomes.Keywords: Foetal Anomaly, Ventral wall defect, Obstetric ultrasound, Prenatal diagnosis, Thoraco-abdominalsyndrom

Clinic visits and cervical cancer screening in Accra

Objective: To determine the factors that increase the chances of a woman in Accra having a Pap smear and whether women who have recently visited clinics have higher chances of having had Pap smears.Design: A cross-sectional studyMethods: A representative sample of women in Accra, Ghana was interviewed and the clinical and demographic factors influencing cervical cancer screening was assessed.Results: Out of 1193 women with complete data, only 25 (2.1%) had ever had a Pap smear performed though 171 (14.3%) had their last outpatient clinic visit for either a gynaecological consultation or a regular checkup. Simple logistic regression showed that a high educational level, high socioeconomic status and a history over the past month of postmenopausal or intermenstrual bleeding significantly increased the odds of ever having a pap smear. Neither monthly income nor lastclinic visit for a gynaecological consultation or regular check up increased the odds of having a pap smear. Multiple logistic regression showed that a high educational level and experiencing postmenopausal or intermenstrualbleeding were the most important determinants of ever having a Pap smear.Conclusion: While we wait for a national program for cervical cancer screening, there is a need for clinicians to put more individual effort into ensuring that asymptomatic women are screened for cervical cancer

Interest in healthy living outweighs presumed cultural norms for obesity for Ghanaian women

BACKGROUND: Cultural norms indicate that obesity reflects increased wealth and prosperity. Yet obesity is linked to serious medical illnesses. The purpose of this study was to determine if Ghanaian women would change their body image if it meant a healthier life. METHODS: A questionnaire was administered to 305 Ghanaian women waiting for clinic appointments at Korle Bu Teaching Hospital, Accra Ghana. This survey included questions on current health, selection of figural stimuli, decision making on health and social determinants and 5 questions on self-perception of health from SF-36. Anthropometric measures were taken and body mass index calculated. Women were also provided with health related information at the conclusion of the interview. RESULTS: The majority of all women surveyed would reduce their current body image if it meant that they would have an overall healthier life and reduce the risks of obesity-linked illnesses and complications. Currently obese women were significantly more likely than non-obese women to reduce their body image to reduce the risk of hypertension (OR 2.03 [1.64 – 2.51],<0.001); cardiovascular accident (OR 1.96 [1.61 – 2.38],<0.001); diabetes (OR 2.00 [1.63 – 2.44],<0.001); myocardial infarction (OR 2.27 [1.80 – 2.86],<0.001); if requested by a spouse(OR 2.64 [1.98 – 3.52],<0.001); and to improve overall health (OR 1.95 [1.60 – 2.37], <0.001). There was no association with current body image and responses to SF-36. The decision to select a new body image was not influenced by education, income, marital status or parity. Age 50 years old and less was significantly associated with the body image size reduction to reduce the risk of hypertension, diabetes, and a cardiovascular accident. CONCLUSION: The Ghanaian women interviewed in this study are interested in living a healthy life and are willing to reduce their body size to reduce the risk of obesity-linked illnesses. The target group for any interventional studies and measures to reduce obesity appears to be women age 50 and younger