Prevalence of Vitamin D deficiency among individuals with Fontan palliation: A systematic review and meta-analysis.

Background: Children with one functional ventricle might receive the Fontan procedure as palliative management to prolong their lives. However, the heart remains functionally univentricular, which may result in disrupted absorption of nutrients, including Vitamin D. Individuals with Fontan circulation have limited physical activity and sun exposure, which might further contribute to Vitamin D deficiency.

The Relationship Between Decrease in Vision Aquity and Gadget Use During Online Lectures and COVID-19 Pandemic in Students of the Faculty of Medicine, Universitas Sumatera Utara.

Background: The use of gadgets for a long duration causes problems related to discomfort and causes various other eye complaints. Online lectures cause students to be more intense in using gadgets to support their learning. Therefore, it is necessary to conduct research on the relationship between decreased visual acuity and the use of gadgets during online lectures during the Covid-19 pandemic.

Multicolor PEGDA/LCNF Hydrogel in the Presence of Red Cabbage Anthocyanin Extract.

Colorimetric indicator gels were developed by incorporating anthocyanin (AC) obtained from red cabbage into poly (ethylene glycol) diacrylate (PEGDA)-based hydrogel containing lignocellulose nanofiber (LCNF). The PEGDA-based hydrogel was prepared by mixing all of the mentioned components at the specific composition, and the hydrogels were cured under UV light (245 nm) for 1 min. The pH-response, UV absorption, swelling ratio, and mechanical properties of PEGDA/LCNF were determined.