Seafloor holds 15 million years of monsoon history

: Clues about rainfall in the distant past — from river mud to tiny seashells — come to rest on the ocean floor. Sampling layers of sediment from the Indian Ocean will help researchers build an accurate picture of Indian monsoon activity going back 15 million years or more.

Mutation may cause early loss of sperm supply

Problems in a gene responsible for producing the protein TAF4b leave mice — and maybe men — unable to sustain sperm production. As embryos, mice lacking the protein failed to develop an adequate number of key cells in the sperm production process and as adults they quickly lost their initial fertility.
The 90th Ogden Lecture

Julia Gillard, former Australian PM, to discuss ‘Asian Century’

Julia Gillard, the first woman to serve as prime minister of Australia (2010-13), will deliver the 90th Stephen A. Ogden Jr. ’60 Memorial Lecture on International Affairs. The lecture will take place on Wednesday, March 4, 2015, at 5 p.m. in the Salomon Center for Teaching, De Ciccio Family Auditorium. The event is free and open to the public, but registration is required.

Study maps extroversion types in the brain’s anatomy

Brown University scientists have mapped the similarities and the differences in the brain between the two different kinds of extroverts: “agentic” go-getters and “affiliative” people persons.

‘Ecosystem services’ help assess ocean energy development

In a new paper, Brown University environmental scientists suggest that the way to fill vast gaps in knowledge about the ecological and socioeconomic impacts of ocean energy development is to consider how the benefits provided by ocean ecosystems change before and after the placement of ocean energy infrastructure. The authors examine the case of Muskeget Channel in Massachusetts as an example.
Commentary: Eli Adashi

Hospitals face growing active shooter threat

The number of active shooter incidents in U.S. hospitals has increased over the last decade to a frequency of more than one a month. In a new Viewpoint in JAMA, authors suggest that hospitals examine their security plans.

Tadpole model links drug exposure to autism-like effects

In utero exposure to the epilepsy drug VPA appears to elevate the risk to babies of developing an autism spectrum disorder. A new Brown University study used a tadpole model to investigate VPA’s effects on developing neural physiology and behavior. Researchers now hope to use the model to develop an intervention and to learn more about the underlying causes of neurodevelopmental disorders more broadly.
Beyond basic nutrition

Meal deliveries benefit seniors, report says

In a randomized, controlled trial commissioned by Meals on Wheels America, a Brown University public health researcher found that home-delivered meals provide health and psychological benefits to seniors beyond basic nutrition.

The Legacy of Louise Lamphere v. Brown University

In celebration of Brown University’s 250th anniversary, the Pembroke Center for Teaching and Research on Women is hosting two days of events re-examining Louise Lamphere v. Brown University, the landmark class action case that in 1975 charged Brown with sex discrimination and set in motion a chain of events that changed the University. Events include an exhibition, panel discussion, and symposium.

DNA ‘cage’ could improve nanopore technology

Scientists at Brown University have designed a nanoscale cage that can trap a single DNA strand and allow before-and-after sequencing of the same DNA strand in research trials.