Does electrification spur the fertility transition? evidence from Indonesia

We analyze various pathways through which access to electricity affects fertility in Indonesia, using a district difference-in-difference approach. The electrification rate increased by 65 % over the study period, and our results suggest that the subsequent effects on fertility account for about 18 % to 24 % of the overall decline in fertility. A key channel is increased exposure to television. Using in addition several waves of Demographic and Health Surveys, we find suggestive evidence that increased exposure to TV affects, in particular, fertility preferences and increases the effective use of contraception. Reduced child mortality seems to be another important pathway

Rod photoreceptors drive circadian photoentrainment across a wide range of light intensities

In mammals, synchronization of the circadian pacemaker in the hypothalamus is achieved through direct input from the eyes conveyed by intrinsically photosensitive retinal ganglion cells (ipRGCs). Circadian photoentrainment can be maintained by rod and cone photoreceptors, but their functional contributions and their retinal circuits that impinge on ipRGCs are not well understood. Using mice that lack functional rods or in which rods are the only functional photoreceptors, we found that rods were solely responsible for photoentrainment at scotopic light intensities. Rods were also capable of driving circadian photoentrainment at photopic intensities at which they were incapable of supporting a visually guided behavior. Using mice in which cone photoreceptors were ablated, we found that rods signal through cones at high light intensities, but not at low light intensities. Thus, rods use two distinct retinal circuits to drive ipRGC function to support circadian photoentrainment across a wide range of light intensities

Digital and social media in anatomy education

The use of images in various forms (drawing, photography, digital applications) has always been intrinsically associated with anatomy, however the way in which anatomy educators and students create, access, view and interact with images has changed dramatically over the last twenty years. The method that anatomy educators use to engage with students and the wider public and how students engage with each other and faculty has also changed since the turn of the century, largely due to the emergence of social media. These two facets; the move towards digital images and the use of social media are now intricately interlinked because social media enables anatomy educators to share digital learning resources easily and instantly to a global audience. This new trend of using social media to share digital images has created some ethical dilemmas that anatomy educators are researching and seeking guidance on to ensure that they are representing the potential conflicting needs and/or requirements of different stakeholders including; donors, donors families, students, the public, regulators and anatomy educators themselves. Meeting the various needs of stakeholders is complex, however this chapter suggests an ethical approach for how digital images and social media can continue to be part of anatomy education