There’s been nothing but trouble for much of Africa as the price of oil plummeted 55 percent during the past two and a half years. But there’s a brighter side to the sub-Saharan continent. Unlike Nigeria, where oil accounts for more than 90 percent of exports, or South Africa, which never recovered from the 2008 financial crisis amid weak global demand for commodities, Kenya, the No. 3 economy measured by gross domestic product, is turning the oil debacle into a bonanza. Growing Faster Than Africa's Giants Real GDP, year-over-year percentage change Source: Bloomberg Figures for 2016, 2017 and 2018 are…

NTRODUCTION Scientists and inventors can combine information from an ever-expanding knowledge base dispersed across documents, experiments, and data (1). The Web of Science (WOS) contains 28.4 million publications, including more than 1.5 million new articles published in 2014 alone, sextupling the 1970 rate. The U.S. Patent and Trademark Office (USPTO) issued 287,831 patents in 2013, quadrupling the 1970 rate. Although more knowledge enables more novel ideas to be combined (2, 3), scientists and inventors have limited time to search through the expanding base (4, 5). As the rate of knowledge expansion grows, but the time to search for new knowledge remains fixed,…

Commentary — Seriously, you always hear that we mustn’t deport people because it could break up families. Yet we are encouraging teenagers to run away from their families and try their luck on America’s streets! Latino Invasion Set for New Record More than 17,000 “unaccompanied alien minors” had invaded the US over the Mexican border in the past few months, and the number of “family units” has increased to 21,000, the US House Judiciary Subcommittee on Immigration and Border Security has been informed. The House was also told that if the present trends continue, there will be a 30 percent increase…

Interdiction de la transfusion sanguine aux malades, insistance sur le côté exceptionnel des membres du groupe... Aux yeux du ministère russe de la Justice, les actions des Témoins de Jéhovah sont incompatibles avec la loi sur la lutte contre l'extrémisme. Cependant, la prohibition du mouvement risque de favoriser son retrait dans la clandestinité. Le mouvement des Témoins de Jéhovah (TdJ) viole la loi « Sur la lutte contre l'extrémisme », interdisant notamment pour des motifs religieux toute transfusion sanguine aux membres de cette organisation, a déclaré le ministère russe de la Justice, cité par les médias locaux. En outre, les membres de…

Frederica Perera has stocked a dozen freezers with an unusual biological bounty over the past two decades. Inside are vials of umbilical-cord blood, urine and placentas from more than 700 pregnant women and their children from the Washington Heights, Harlem and South Bronx neighbourhoods of New York City. This biobank has proved invaluable in her efforts to understand how urban environments influence children’s health from birth through childhood. Now, Perera’s team is gearing up for another challenge: developing a tool that can test her bank of umbilical-cord blood samples for common pollutants and use the results to predict later impacts…