science newsletter: Science News SciGuru.com

Δευτέρα 16 Ιουνίου 2014

Science News SciGuru.com

Researchers chart cellular complexity of brain tumors
Emotional contagion sweeps Facebook, finds new study
A new study investigates the role of cells’ alignment in shaping biological tissue

Researchers chart cellular complexity of brain tumors

Posted: 15 Jun 2014 06:00 PM PDT

Scientists from the Broad Institute and Massachusetts General Hospital (MGH) have conducted a first-of-its-kind study that characterizes the cellular diversity within glioblastoma tumors from patients. The study, which looked at the expression of thousands of genes in individual cells from patient tumors, revealed that the cellular makeup of each tumor is more heterogeneous than previously suspected. The findings, which appear online in Science Express, will help guide future investigations into potential treatments for this devastating disease.

Emotional contagion sweeps Facebook, finds new study

Posted: 15 Jun 2014 05:44 PM PDT

When it hasn't been your day – your week, your month, or even your year – it might be time to turn to Facebook friends for a little positive reinforcement. According to a new study by social scientists at Cornell University, the University of California, San Francisco (UCSF), and Facebook, emotions can spread among users of online social networks.

A new study investigates the role of cells’ alignment in shaping biological tissue

Posted: 15 Jun 2014 05:31 PM PDT

A team of European scientists has now extended a previous biophysical model to investigate elongated growth within biological tissues by describing the evolution over time of the shape of a fruit fly’s wing. They found the aspect ratio of the typical biological shapes may exhibit a maximum at finite time and then decrease. For sufficiently large tissues, the shape is expected to approach that of a disk or sphere. These findings have been reported by Carles Blanch-Mercader from the University of Barcelona, Spain, and colleagues, in a paper published in EPJ E.