WASHINGTON, D.C., June 26, 2014 - First-grade teachers in the United States may need to change their instructional practices if they are to raise the mathematics achievement of students with mathematics difficulties (MD), according to new research published online today in Educational Evaluation and Policy Analysis, a peer-reviewed journal of the American Educational Research Association.

VIDEO: Co-author Paul L. Morgan discusses key findings https://www.youtube.com/watch?v=xCAzLGSZ6aM&feature=youtu.be

Chemists at Queen Mary University of London have discovered a new chemical to aid drug manufacturing processes, making it more environmentally-friendly and easier to scale up for industry.

Carbon-based molecules used in pharmaceuticals or agrochemicals can be prepared via a process called C-H activation, which requires the bonds in complex chemicals to be broken and reattached. This method can be expensive as precious metals like palladium or silver are needed to speed up the synthesis process, and can produce waste byproducts harmful to the environment.

A new paper in Science identifies the regulatory molecules involved in the genetic and developmental pathways that electric fish have used to convert a simple muscle into an organ capable of generating a potent electrical field.

The work establishes the genetic basis for the electric organ, an anatomical feature found only in fish.

The most shocking part to non-biologists? It evolved independently half a dozen times in environments ranging from the flooded forests of the Amazon to murky marine environments.

'Big data' means a lot of things to a lot of people but generally it is used to indicate huge amounts of information, like texts or keywords, in use at any time by billions of people.

Though it has many cultural upsides, tracking flu epidemics, monitoring road traffic in real time, or handling the emergency of natural disasters, those are all sunk costs, which means government and that means a lot of poorly-functioning government websites. Big data will be used by marketing people before it gets adopted by social services.

Complementing the five basic tastes of sweet, bitter, salty, sour and umami, a large variety of odors also contribute to the overall sensory impression of a foodstuff.

Taste is big business, and that means science is on the case.  In recent decades, approximately 10,000 volatile food compounds have been identified. Scientists from Technische Universität München (TUM) and the German Research Center for Food Chemistry (DFA) have carried out a meta-analysis on the odorant patterns of 227 food samples. 

How cognac gets its complex notes

The United States has the world's best medical care. Wealthy people from all over the planet abandon their country's government health plans and journey to the US for elite treatment.