Just as they were marking the end of their undergraduate careers, 33 graduating seniors had something else to celebrate. They were recipients of the 2015 Firestone and Robert M. Golden medals and the David M. Kennedy Honors Thesis Prize.

Four of the Firestone winners had FSI scholars as their advisers, and one of those students was also awarded the Kennedy honor.

The Firestone Medal for Excellence in Undergraduate Research recognizes theses written in the social sciences, natural sciences, and engineering and applied sciences. The medalists each received an engraved bronze medal, citation and a monetary award at a ceremony in June, hosted by Harry J. Elam Jr., vice provost for undergraduate education.

The Kennedy Thesis Prize is awarded annually to the single best thesis in each of the four divisions of humanities, social sciences, natural sciences, and engineering and applied sciences. Recipients of this award have accomplished significantly advanced research in the field and have shown strong potential for publication in peer-reviewed scholarly works.

The prize was established in 2008 in recognition of David M. Kennedy, professor emeritus of history, well known for mentoring undergraduate writers. Each Kennedy winner received an engraved plaque and a monetary award, and the historian was on hand to present the prizes.

Jeremy Majerovitz was advised by Pascaline Dupas, an FSI senior fellow, for "Does Ethnic Fractionalization Matter for Development?"

Taylor Grossman was advised by Amy Zegart, an FSI senior fellow and co-director of CISAC, for "The Problem of Warning: Homeland Security and the Evolution of Terrorism Advisory Systems."

Stefan Norgaard, was advised by Larry Diamond and Francis Fukuyama for "Rainbow Junction: South Africa's Born Free Generation and the Future of Democracy." Both are FSI senior fellows, and Fukuyama is soon to take Diamond’s place as director of CDDRL. James Campbell, a history professor, also advised Norgaard.

Sanjana Parikh was advised by Phillip Lipscy, a center fellow at APARC, for "Constitutional Promises and Environmental Protection: An Assessment of National Legal Rights to Nature," international relations; advised by Phillip Lipscy, assistant professor of political science.

Laurie Rumker was advised by David Relman, an FSI senior fellow and co-director of CISAC for "Before and After the Flood: Stability and Resilience of the Human Gut Microbiota." Rumker was also advised by Stanley Falkow, professor emeritus of microbiology and immunology; and Les Dethlefsen, research associate in microbiology and immunology.

The United Nations has thus far fulfilled its charter to prevent a third world war, but with 60 million refugees, continued bloodshed with unresolved civil conflicts and terrorism spreading like cancer, the world's leading peacekeeping organization must spearhead global action, U.N. Secretary-General Ban Ki-moon said Friday at Stanford on the 70th anniversary of the international organization.

Ban, the U.N.'s eighth secretary-general, did not rest on any laurels during his speech at a public event sponsored by the Walter H. Shorenstein Asia-Pacific Research Center (APARC). "I humbly accept criticism that the U.N. is not doing enough," he said. 

However, the situation could have been worse if not for the United Nations, he continued. "Without peacekeepers, or without the U.N.'s continued humanitarian assistance and advocacy of human rights, I'm afraid to tell you that this world would have been poorer, more dangerous and even bloodier without the United Nations."

Ban's visit to Stanford – his second to the university in less than three years – was part of a trip to the Bay Area to commemorate the signing of the U.N. charter. In 1945, representatives from 50 nations gathered in San Francisco to create the United Nations – an international organization aimed at saving future generations from the "scourge of war."

Today, the United Nations has grown to 193 member nations. Its challenges – from climate change and poverty to civil wars and terrorism – have never been greater, Ban said.

"This is a critical year; 2015 is a year of global action," he said. "The U.N. cannot do it alone. We need strong solidarity among government, business communities and civil societies, from each and every citizen."

The fact that so many young people around the globe are drawn to violent narratives is worrisome, Ban said. "Violent terrorism is spreading like cancer around the world."

The rise in terrorist activities stems from "a failure of leadership," he said. That's why the United Nations needs to develop a comprehensive plan of action to address extremism, he maintained.

The U.N.'s 70th anniversary coincidentally fell on a momentous day of tragedy and celebration around the world. Dozens were killed when terrorists launched horrific attacks across three continents – in France, Tunisia and Kuwait – fueling anger, sadness and fear of more violence.

But in the United States, celebrations rang out in response to a landmark U.S. Supreme Court ruling that legalizes same-sex marriages nationwide.

Ban, who has long advocated for equality and last year pushed the United Nations to recognize same-sex marriages of its staff, drew a round of applause when he heralded the court ruling as "a great step forward for human rights."

The June 26 event was co-sponsored by Shorenstein APARC and the Freeman Spogli Institute for International Studies at Stanford University, with promotional co-sponsors Asia Society, Asia Foundation and the World Affairs Council of Northern California. 

May Wong is a freelance writer for the Stanford News Service.

Coverage and related multimedia links:

Remarks at Stanford University by Ban Ki-moon (U.N. News Centre, 6/26/15)

Photos of Ban Ki-moon at Stanford University (U.N. Photo, 6/26/15)

At Stanford University, Ban says U.N. ready to build a better future for all (U.N. News Centre, 6/27/2015)

U.N. Secretary-General Ban Ki-moon welcomes growing engagement of India, China (NDTV, 6/27/2015)

U.N. Secretary-General Ban Ki-moon speaks at Stanford, celebrates U.N.'s 70th anniversary (Stanford Daily, 6/29/15)

Hoover archival photographs featured at lecture delivered by U.N. Secretary-General Ban Ki-moon (Hoover Institution, 6/29/2015)

Bad weather in sub-Saharan Africa increases the spread of HIV, according to a study published in the June 2015 issue of the Economic Journal, co-authored by Stanford professor and FSE fellow Marshall Burke.

When the rains fail, farmers in rural areas often see their incomes fall dramatically and will try to make up for it however they can, including through sex work. Analysing data on more than 200,000 individuals across 19 African countries, the research team finds that by changing sexual behaviour, a year of very low rainfall can increase local infection rates by more than 10%.

The results have important policy implications for fighting the spread of the epidemic, as co-author Erick Gong of Middlebury College notes:

‘Existing approaches to stopping the spread of HIV – such as promoting condom use and the use of anti-retrovirals – remain critically important. But our results suggest that other policy approaches could be very useful too – in particular, approaches that provide safety nets to rural households when the weather turns bad.’

Policies and investments seemingly unrelated to HIV – such as the promotion of rural insurance or household savings schemes, or the development of drought-tolerant crops – might have surprising benefits in slowing the HIV epidemic. Co-author Kelly Jones of the International Food Policy Research Institute says:

‘The HIV/AIDS epidemic remains one of the world’s greatest health challenges, with over a million new infections per year in Africa alone. Our results expand the menu of options for addressing the epidemic, and highlight some surprising options that are not at the forefront of people’s minds.’

The research sheds valuable light on why HIV continues to spread in Africa. Previous studies have documented in limited settings that poor women often alter their sexual behaviour in response to an income shortfall. But until now, there has been little evidence that this response is big enough to affect the trajectory of the HIV epidemic.

To fill this gap, the researchers combined data on the HIV status of thousands of people across sub-Saharan Africa with data on the recent rainfall history in each individual’s location.

Because years of low rainfall can lead to much lower incomes in these locations, particularly in rural areas where people depend more heavily on agriculture for their livelihoods, variation in rainfall provides a way to study how changes in local economic conditions affect infection rates. Co-author Marshall Burke comments:

‘We were surprised by how strong the relationship is between recent rainfall fluctuations and local infection rates. As expected, the relationship is much stronger in rural areas, and particularly for women who report working in agriculture. These are the people who really suffer when the rains fail, and who are forced to turn to more desperate measures to make ends meet.’

Notes for editors: ‘Income Shocks and HIV in Africa’ by Marshall Burke, Erick Gong and Kelly Jones is published in the June 2015 issue of the Economic Journal.

Marshall Burke is an assistant professor of Earth System Science at Stanford University. Erick Gong is an assistant professor of economics at Middlebury College. Kelly Jones is a research fellow at the International Food Policy Research Institute (IFPRI).

For further information: contact Marshall Burke on +1-650-736-8571 (email: mburke@stanford.edu); Erick Gong on +1-802-443-5553 (email: egong@middlebury.edu); Kelly Jones on +1-202-862-4641 (email: k.jones@cgiar.org); or Romesh Vaitilingam on +44-7768-661095 (email: romesh@vaitilingam.com; Twitter: @econromesh).