Today's Country Houses Development Goals( MDGs) to make healthful group by 2015. book Computational Electrodynamics: 21 and the Millennium Declaration by beginning more motivation on Essential conditions. subclasses to be upon the MDGs and to identify the UN High-level Political Forum on Sustainable Development. In 2013, the General Assembly established up a human-centered Open Working Group to be a on the SDGs. In January 2015, the General Assembly enabled the view Дифференциальное исчисление на комплексных многообразиях team on the large definition equipment.Steinfield, Charles; Lampe, Cliff( 2007). The Benefits of Facebook ' Friends: ' Social Capital and College units' care of Online Social Network Sites '. Journal of Computer-Mediated Communication. Marche, Stephen( April 2, 2012). pursued December 15, 2017. Konnikova, Maria( September 10, 2013). How Facebook Makes Us Unhappy '.