A photo of a sleeping baby.

UCLA-led team of scientists discovers why we need sleep

A photo of a sleeping baby.

A UCLA-led team of scientists explains why sleep is so vital to our health and shows for the first time that a dramatic change in the purpose of sleep occurs at the age of about 2-and-a-half. (Photo Credit: Shutterstock.com)

Prolonged sleep deprivation can lead to severe health problems in humans and other animals. But why is sleep so vital to our health? A UCLA-led team of scientists has made a major advance in answering this question and has shown for the first time that a dramatic change in the purpose of sleep occurs at the age of about 2-and-a-half.

Before that age, the brain grows very rapidly. During REM sleep, when vivid dreams occur, the young brain is busy building and strengthening synapses — the structures that connect neurons to one another and allow them to communicate.

“Don’t wake babies up during REM sleep — important work is being done in their brains as they sleep,” said senior study author Gina Poe, a UCLA professor of integrative biology and physiology who has conducted sleep research for more than 30 years.

After 2-and-a-half years, however, sleep’s primary purpose switches from brain building to brain maintenance and repair, a role it maintains for the rest of our lives, the scientists report Sept. 18 in the journal Science Advances. This transition, the researchers say, corresponds to changes in brain development.

All animals naturally experience a certain amount of neurological damage during waking hours, and the resulting debris, including damaged genes and proteins within neurons, can build up and cause brain disease. Sleep helps repair this damage and clear the debris — essentially decluttering the brain and taking out the trash that can lead to serious illness.

Nearly all of this brain repair occurs during sleep, according to senior author Van Savage, a UCLA professor of ecology and evolutionary biology and of computational medicine, and his colleagues.

“I was shocked how huge a change this is over a short period of time, and that this switch occurs when we’re so young,” Savage said. “It’s a transition that is analogous to when water freezes to ice.”

The research team, which included scientists with expertise in neuroscience, biology, statistics and physics, conducted the most comprehensive statistical analysis of sleep to date, using data from more than 60 sleep studies involving humans and other mammals. They examined data on sleep throughout development — including total sleep time, REM sleep time, brain size and body size — and built and tested a mathematical model to explain how sleep changes with brain and body size.

The data were remarkably consistent: All species experienced a dramatic decline in REM sleep when they reached the human developmental equivalent of about 2-and-half years of age. The fraction of time spent in REM sleep before and after that point was roughly the same, whether the researchers studied rabbits, rats, pigs or humans.

REM sleep decreases with the growth in brain size throughout development, the scientists found. While newborns spend about 50% of their sleep time in REM sleep, that falls to about 25% by the age of 10 and continues to decrease with age. Adults older than 50 spend approximately 15% of their time asleep in REM. The significant dropoff in REM sleep at about 2-and-a-half happens just as the major change in the function of sleep occurs, Poe said.

“Sleep is as important as food,” Poe said. “And it’s miraculous how well sleep matches the needs of our nervous system. From jellyfish to birds to whales, everyone sleeps. While we sleep, our brains are not resting.”

A chronic lack of sleep likely contributes to long-term health problems such as dementia and other cognitive disorders, diabetes, and obesity, to name a few, Poe said. When you start to feel tired, she said, don’t fight it — go to bed.

“I fought sleep and pulled all-nighters when I was in college, and now think that was a mistake,” Savage said. “I would have been better off with a good night’s sleep. Now when I feel tired, I don’t have any guilt about sleeping.”

For most adults, a regular seven-and-a-half hours of sleep a night is normal — and time lying awake doesn’t count, Poe says. While children need more sleep, babies need much more, roughly twice as much as adults. The large percentage of REM sleep in babies is in stark contrast to the amount of REM sleep observed in adult mammals across an enormous range of brain sizes and body sizes. Adult humans have five REM cycles during a full night of sleep and can have a few dreams in each cycle.

A good night’s sleep is excellent medicine, Poe says. And it’s free.

Co-authors of the study are Junyu Cao, who conducted research in Savage’s laboratory and is now an assistant professor at the University of Texas at Austin; Alexander Herman, an assistant professor of psychiatry at the University of Minnesota, Twin Cities; and Geoffrey West, a physicist who is the Shannan Distinguished Professor at the Santa Fe Institute.

Funding sources included the National Science Foundation and the Eugene and Clare Thaw Charitable Trust.

This article originally appeared in the UCLA Newsroom.

Images from the four episodes of Earth Focus

Faculty, students co-produce documentary on bipartisan environmental solutions

Images from the four episodes of Earth Focus

Earth Focus Collage
Images from the four episodes of Earth Focus. Top Left: “The New West and the Politics of the Environment,” image courtesy of KCET and LENS at UCLA; remaining images courtesy of Thomson Reuters Foundation. (Photos Courtesy of KCET, LENS and Thomson Reuters Foundation)

Anew documentary exploring environmental politics, which was researched, reported and produced by UCLA faculty and students in conjunction with the Southern California public media channel KCET, is slated to air in September as part of the locally produced environmental series “Earth Focus.”

This is the third season of “Earth Focus” that UCLA’s Laboratory for Environmental Narrative Strategies has worked on. LENS advised on three of the episodes in this year’s series and co-produced the fourth, a feature-length documentary. Launched in 2007, the series is the longest-running investigative environmental news program on U.S. television and features reports about the changing environment and how it affects people around the world.

The 90-minute documentary, “The New West and the Politics of the Environment,” focuses on Nevada Sen. Harry Reid’s work on sustainability. The film looks at topics like bipartisan solutions to water wars and land conservation, compromises between progressive urban areas and conservative rural areas, and equitable energy transitions from coal to renewable energy.

LENS co-founder Jon Christensen, a UCLA adjunct assistant professor and member of the Institute of the Environment and Sustainability, served as executive producer on the documentary. In collaboration with the filmmaking team at KCET, Christensen’s work included researching and shaping the story, interviewing subjects, and overseeing UCLA students working as researchers, reporters and writers on the series.

UCLA fourth-year political science student Lucas Holtz investigated environmental initiatives emerging in the western United States, while Spencer Robins, a graduate student in English, delved into Reid’s archived congressional papers, many of which were fortunately digitized before the pandemic quarantine.

Shouhei Tanaka, also a graduate student in English, researched the history of California’s reliance on coal and fossil fuels and turned it into an online article that will run with an “Earth Focus” episode about coal mining in South Africa. Geography grad student Alexandria Herr researched and wrote an article for the website about the environmental legacy of mercury used in the California gold rush, which will run as a companion piece to an episode about illegal gold mines in Peru.

“In a political season that’s as polarized as we’ve ever seen, we want to tell these stories showing that environmental politics are complicated and nuanced, and there are different paths being forged on the ground,” Christensen said. “Even among politicians who are opposed to funding climate change research, in the Midwest for example, there are many who care deeply about how changing weather patterns, drought and flooding affect farming.”

KCET partnered with the Thomson Reuters Foundation for the international filmmaking. While LENS’ work focused on the feature-length documentary, all the partners gathered for weekly calls on story development, providing Christensen and the UCLA students a voice in the development of the other three episodes in the series.

“Earth Focus” airs on KCET and Link TV beginning on Sept. 8 at 8 p.m. with “The Youth Climate Movement around the World,” and culminates with “The New West and the Politics of the Environment” on Sept. 29.

This article originally appeared in the UCLA Newsroom.

A photo of two N95 respirators.

Single-use N95 respirators can be decontaminated and used again, study finds

A photo of two N95 respirators.

N95 respirators reduce exposure to airborne infectious agents, including SARS-CoV-2, the virus that causes COVID-19. (Photo Credit: CDC/Debora Cartagena)

N95 respirators, which are widely worn by health care workers treating patients with COVID-19 and are designed to be used only once, can be decontaminated effectively and used up to three times, according to research by UCLA scientists and colleagues.

An early-release version of their study has been published online, with the full study to appear in September in the journal Emerging Infectious Diseases.

N95 respirators reduce exposure to airborne infectious agents, including SARS-CoV-2, the virus that causes COVID-19, and are one of the key pieces of personal protective equipment used by clinical workers in preventing the spread of the virus. Critical shortages of these masks have driven efforts to find new decontamination methods that can extend their use.

“Although N95 respirators are designed for just one use before disposal, in times of shortage, N95 respirators can be decontaminated and reused up to three times,” said James Lloyd-Smith, a co-author of the study and a UCLA professor of ecology and evolutionary biology. “But the integrity of the respirator’s fit and seal must be maintained.”

In a controlled laboratory setting, the researchers tested several decontamination methods on small sections of N95 filter fabric that had been exposed to SARS-CoV-2. The methods included vaporized hydrogen peroxide, dry heat at 70 degrees Celsius (158 degrees Fahrenheit), ultraviolet light and a 70% ethanol spray. All four methods eliminated detectable viable virus traces from the N95 fabric test samples.

The investigators then treated fully intact, clean respirators with the same decontamination methods to test their reuse durability. Employees with the National Institutes of Health’s Rocky Mountain Laboratories in Montana volunteered to wear the masks for two hours to determine if they maintained a proper fit and seal over the face. The scientists decontaminated each mask three times, using the same procedure with each.

The masks treated with vaporized hydrogen peroxide experienced no failures, suggesting they potentially could be reused three times, Lloyd-Smith said. Those treated with ultraviolet light and dry heat began showing fit and seal problems after three decontaminations, suggesting these respirators potentially could be reused twice.

The study authors concluded that vaporized hydrogen peroxide was the most effective method because no traces of the virus could be detected after only a 10-minute treatment. They found that ultraviolet light and dry heat are also acceptable decontamination procedures, as long as the methods are applied for at least 60 minutes.

The ethanol spray, the scientists discovered, damaged the integrity of the respirator’s fit and seal after two sessions, and they do not recommend it for decontaminating N95 respirators.

The researchers stressed that anyone decontaminating an N95 respirator should closely check the fit and seal over the face before each reuse.

Co-authors of the study include Amandine Gamble, a UCLA postdoctoral researcher in Lloyd-Smith’s laboratory, as well as researchers with Rocky Mountain Laboratories, part of the NIH’s National Institute of Allergy and Infectious Diseases.

Funding sources included the National Institute of Allergy and Infectious Diseases, the Defense Advanced Research Projects Agency, and the National Science Foundation.

In a widely cited study, Lloyd-Smith and colleagues reported in March that the virus that causes COVID-19 remains for several hours to days on surfaces and in aerosols.

This article originally appeared in the UCLA Newsroom.

 

A photo of Lynn Vavreck and Miguel García-Garibay.

Two elected to American Academy of Arts and Sciences

A photo of Lynn Vavreck and Miguel García-Garibay.

From left: Lynn Vavreck, Miguel García-Garibay

Six exceptional UCLA professors and leaders — including the UCLA College’s Physical Sciences Dean Miguel García-Garibay and Political Science Professor Lynn Vavreck — were elected April 23 to the American Academy of Arts and Sciences, one of the nation’s most prestigious honorary societies. The other honorees include School of Law Dean Jennifer Mnookin, Education Professor Pedro Noguera, environmental champion Mary Nichols and Hammer Museum Director Ann Philbin.

“I am delighted to congratulate each of this year’s UCLA inductees, who are all deserving of this wonderful honor,” UCLA Chancellor Gene Block said. “Election to the American Academy of Arts and Sciences is a testament to the exceptional work of our scholars and leaders. The entire campus community can take pride in this news and their many accomplishments.”

A total of 276 artists, scholars, scientists and leaders in the public, nonprofit and private sectors who were elected to the Academy today. More about UCLA’s honorees:

Miguel García-Garibay, dean of the UCLA Division of Physical Sciences and professor of chemistry and biochemistry, has earned worldwide recognition in the fields of artificial molecular machines, organic photochemistry, solid-state organic chemistry and physical organic chemistry. He studies the interaction of light and molecules in crystals. Light can have enough energy to break and make bonds in molecules, and García-Garibay’s research team has shown that crystals offer an opportunity to control the outcome of these chemical reactions.

His research has applications for green chemistry — the design of chemical products and processes that reduce or eliminate the generation of hazardous substances — and it could lead to the production of specialty chemicals that would be very difficult to produce using traditional methods. Among his many honors, he was elected a fellow of the American Chemical Society in 2019.

Lynn Vavreck is UCLA’s Marvin Hoffenberg Professor of American Politics and Public Policy, a contributing columnist to the Upshot at the New York Times, and a recipient of many awards and honors, including the Andrew F. Carnegie Prize in the Humanities and Social Sciences. She is the author of five books, including “Identity Crisis: The 2016 Presidential Campaign and the Battle for the Meaning of America” and “The Gamble: Choice and Chance in the 2012 Presidential Election,” which has been described as the “definitive account” of that election.

Consultants in both political parties refer to her work on political messaging in “The Message Matters” as required reading for presidential candidates. “Identity Crisis” was awarded the 2019 Richard E. Neustadt Prize for the Best Book on Executive Politics by the Presidents and Executive Politics Section of the American Political Science Association.

Vavreck’s 2020 election project, Nationscape, is the largest study of presidential elections ever conducted in the United States. Interviewing more than 6,000 people a week, Nationscape will complete 500,000 interviews before next January’s inauguration.

► Read more about the Nationscape election project.

“The members of the class of 2020 have excelled in laboratories and lecture halls, they have amazed on concert stages and in surgical suites, and they have led in board rooms and courtrooms,” said David Oxtoby, president of the Academy. “With [the] election announcement, these new members are united by a place in history and by an opportunity to shape the future through the Academy’s work to advance the public good.”

The American Academy of Arts and Sciences was founded in 1780 by John Adams, John Hancock and others who believed the new republic should honor exceptionally accomplished individuals. Previous fellows have included George Washington, Benjamin Franklin, Alexander Hamilton, Ralph Waldo Emerson, Albert Einstein, Charles Darwin, Winston Churchill, Martin Luther King Jr. and Nelson Mandela.

It also is an independent policy research center that undertakes studies of complex and emerging problems. Current academy members represent today’s innovative thinkers in many fields and professions, including more than 250 Nobel and Pulitzer Prize winners.

This article originally appeared in the UCLA Newsroom.

A photo of a valley oak tree.

UCLA College Celebrates Earth Day

A photo of a Griffith Park vista; the view of the Los Angeles skyline from Griffith Park.

Los Angeles County is home to more than 4,000 distinct species of plants and animals, and the sustainability plan aims for “no loss of native biodiversity.” (Photo Credit: Jake Dobkin)

Not only does this mark its 50th anniversary, this Earth Day is unlike any other we have seen as the global pandemic continues to impact the way we live our lives. Yes, it has disrupted our daily routines but it has also benefited the environment in myriad ways. For example, freeways once clogged with traffic have opened up, clearing the air and making way for bright blue skies and views for miles. Even before COVID-19, UCLA College faculty members and teams were out in the field and in their labs, working on groundbreaking research and advising on county and statewide plans. In honor of Earth Day, we are highlighting stories about conservation, sustainability, global warming, solar geoengineering and protecting our precious ecosystems.

 

A photo of vegetation and mountains in California's Anza-Borrego State Park.

Vegetation and mountains in California’s Anza-Borrego State Park. (Photo Credit: Sean Brenner/UCLA)

UCLA to lead $10 million California conservation project

UCLA scientists are leading a $10 million project to help California officials make ecologically wise decisions as the state continues to confront the effects of climate change. The initiative will give California officials scientific data they can use to make decisions about conserving the state’s ecosystems.

A photo of a valley oak tree.

The valley oak, the largest oak in California, grows to over 100 feet tall and provides habitat and food for a variety of animals. (Photo Credit: Victoria Sork/UCLA)

One of California’s iconic tree species offers lessons for conservation

New research led by UCLA evolutionary biologist Victoria Sork examines whether the trees being replanted in the wake of California’s fires will be able to survive a climate that is continuing to warm. The study, which is published in the Proceedings of the Natural Academy of Sciences, focuses on California’s iconic valley oak.

A photo of a Griffith Park vista; the view of the Los Angeles skyline from Griffith Park.

Los Angeles County is home to more than 4,000 distinct species of plants and animals, and the sustainability plan aims for “no loss of native biodiversity.” (Photo Credit: Jake Dobkin)

L.A. County taps UCLA to help create first-ever sustainability plan

The Los Angeles County Board of Supervisors unanimously approved an ambitious sustainability plan that calls for phasing out fossil fuels to address climate change and improve quality of life in the region. Sixteen UCLA researchers contributed to the OurCounty plan, which was created by the county’s Chief Sustainability Office.

A photo of the Santa Monica Pier at night.

The Santa Monica Pier at night. Artificial light can cause problems for a range of species that live and breed in coastal environments. (Photo Credit: William Chen/Pexels)

Study draws Southern California coastal light pollution into focus

Artificial light is known to disrupt mating cycles in species along the Southern California coast. A team of UCLA and University of Southern California researchers led by Travis Longcore, UCLA adjunct professor of urban conservation biology, has mapped light pollution conditions that will be used to inform decisions about future infrastructure and construction plans.

A photo of members of the UCLA Center for Diverse Leadership in Science, which was founded by Aradhna Tripati, associate professor in the UCLA Institute of the Environment and Sustainability.

Members of the Center for Diverse Leadership in Science, which was founded by Professor Aradhna Tripati, third row, far right, and their colleagues. (Photo: Courtesy of Aradhna Tripati)

Professor pays it forward by promoting diversity and environmental justice

When she was appointed in 2009, Aradhna Tripati was the first woman of color out of 50 faculty in UCLA’s Institute of the Environment and Sustainability. Along with colleagues in UCLA’s Anthropology department and American Indian Studies Center, she conducts community engaged research on water in the context of global warming in the southwestern United States. She also formed the first university-based center for diversity in environmental science, with the goal of inspiring a generation of leaders that matches the demographics of the U.S. population.

A photo of students on the UCLA campus, with the Janss Steps and Royce Hall in the background.

UCLA raises $5.49 billion in one of most ambitious campaigns ever by a public university

A photo of students on the UCLA campus, with the Janss Steps and Royce Hall in the background.

Nearly 220,000 donors from all 50 U.S. states and 98 additional countries gave to advance causes across the UCLA campus and in communities in Southern California and around the world. Photo Credit: Patricia Marroquin/UCLA

The Centennial Campaign for UCLA, one of the most ambitious fundraising campaigns ever by a public university, has raised $5.49 billion. As UCLA enters its second century, the funds are already supporting a broad array of priorities, including student scholarships and fellowships, faculty research, and programs that enrich communities in Los Angeles and beyond.

The campaign launched publicly in May 2014 and closed in December 2019, in the midst of UCLA’s 100th year. During the initiative, nearly 220,000 donors from all 50 U.S. states and 98 additional countries gave more than 574,000 gifts to advance causes across campus and in communities in Southern California and around the world.

Approximately 95% of those gifts were less than $10,000, and 81% were less than $1,000, indicating the broad-based support for UCLA’s mission.

UCLA also received transformative philanthropic commitments of more than $100 million, including Marion Anderson’s giving for students, faculty and facilities at the UCLA Anderson School of Management; David Geffen’s gifts for medical student scholarships and the Geffen Academy at UCLA; Meyer and Renee Luskin’s giving to name the school of public affairs and build a campus conference center; and Henry and Susan Samueli’s gifts to expand engineering education and research.

“As we celebrate UCLA’s first hundred years, the Centennial Campaign for UCLA has exceeded its goals and engaged students, faculty, friends and leaders in setting up the university for an even more remarkable second century,” UCLA Chancellor Gene Block said. “We are so grateful to each and every person who has participated in this extraordinary effort.”

Campaign gifts cross campus, causes and communities

Funds raised through the campaign already are making a difference across the campus, including supporting students in a diverse range of fields. Such support includes humanities fellowships established by Jordan and Christine Kaplan and Ken Panzer; scholarships created by the cast and crew of hit television show “The Big Bang Theory” for students in science, technology, engineering and math fields; scholarships for dentistry students created by Bob and Marion Wilson; and scholarships for public health students established by Jonathan and Karin Fielding.

Steve Tisch and Shirley and Walter Wang both established scholarships for students from middle-income families; faculty member Ellen Carol DuBois donated to support transfer students; and the family of the late Bill Steinmetz, a UCLA alumnus and World War II veteran, gave to support student veterans.

Campaign giving for scholarships leveraged funds through matching challenges, such as those initiated by Miguel García-Garibay, dean of the UCLA College division of physical sciences, and Block, who designated student support as a campaign and continuing priority. Every new scholarship will help make a high-quality education affordable for high-achieving students of all backgrounds. UCLA already ranks No. 1 among the nation’s top-tier universities for enrolling low- to middle-income students, and more of its graduates move up two or more income levels, according to The Equality of Opportunity Project. During the Centennial Campaign, UCLA raised $665 million for student support.

Many other campaign gifts created endowed chairs to recruit and retain stellar faculty: Iris Cantor established the university’s 500th chair with a gift to the Iris Cantor–UCLA Women’s Health Center, and the Ralph and Shirley Shapiro family established several faculty chairs during the campaign — in dentistry, disability studies, law, nursing, pediatrics and other areas — bringing the total number of chairs they have established at UCLA to more than 20.

Other donors enhanced the campus with lead gifts for state-of-the-art facilities. With the Eugene & Maxine Rosenfeld Hall for medical education, the Evelyn and Mo Ostin Music Center, the Mo Ostin Basketball Center and the Wasserman Football Center, construction has transformed UCLA during the course of the campaign. In Westwood and beyond, the arts have benefited from Marcy Carsey’s and Stewart and Lynda Resnick’s gifts to renovate the Hammer Museum at UCLA and Margo Leavin’s gift to refurbish graduate art studios in Culver City.

Throughout the campaign, philanthropists supported UCLA initiatives in a wide array of fields with real-world relevance:

  • Brain health: A gift from James L. and Phyllis Easton advanced research on the prevention and treatment of neurodegeneration, and concussion and traumatic brain injury. Wendy and Leonard Goldberg endowed a migraine research program, and Laurie and Steven Gordon funded faculty chairs, a new lab and research dedicated to curing Parkinson’s disease. Gifts to the UCLA Depression Grand Challenge made UCLA the first university to offer depression and anxiety screening for students and immediate connection to appropriate levels of care.
  • Cancer: Agi Hirshberg’s campaign gift created a center dedicated to, and supported seed grants for, pancreatic cancer research. Eli and Edythe Broad made a major new gift to their eponymous stem cell research center at UCLA, which will help researchers translate findings into clinical applications for cancer and other diseases. And Dr. Victoria Mann Simms and Ronald Simms gave to support the expansion of integrative psychosocial care for people with cancer and for their families at UCLA clinics throughout Los Angeles.
  • Humanities, culture and entertainment: Tadashi Yanai’s gift endowed an initiative for globalizing Japanese humanities, which supports students, faculty, international exchanges and public events. Jeff Skoll’s gift established a center for promoting social change through entertainment, and Kenneth Ziffren gave multiple gifts to establish an institute in entertainment law. The Patricia Mitchell Trusts not only partnered with Ziffren to support that institute, but also created endowments to support UCLA School of Theater, Film and Television students and the UCLA Film & Television Archive.
  • Environment and sustainability: Dan and Rae Emmett added a matching gift for their namesake institute for climate change and environmental law, whose research regularly informs policy leaders and the media. Morton La Kretz has helped the UCLA College renovate its botany building and the Mildred E. Mathias Botanical Garden, both in support of conservation education and research. Gifts to UCLA’s Sustainable LA Grand Challenge helped produce valuable research and policy recommendations for the region.
  • Public outreach and service: The Anthony and Jeanne Pritzker Family Foundation established an interdisciplinary center for strengthening foster youth and families, and Matthew and Jennifer Harris established the UCLA Bedari Kindness Institute. Campaign commitments enabled UCLA to found the Promise Institute for Human Rights and the Promise Armenian Institute, and many donors gave to UCLA Operation Mend, which provides medical and psychological treatment for service members, veterans and their family members.
  • Well-being for all ages: A major gift from Mattel Inc. advanced the local and international work of UCLA Mattel Children’s Hospital. Jane and Terry Semel endowed the Semel Healthy Campus Initiative Center at UCLA, spreading activities, resources and healthier habits across campus and encouraging similar initiatives at college campuses and other institutions across the nation. James and Carol Collins have advanced research and programs serving older adults, including creating a chair in geriatric medicine and supporting fellowships, residencies and training for medical students and physicians.

Alumni and friends invest in UCLA

The Centennial Campaign, which was co-chaired by Tony Pritzker and UCLA alumnus Garen Staglin, counted the contributions of nearly 220,000 donors, including nearly 127,000 first-time donors and more than 108,000 alumni donors.

“I truly believe in UCLA as a unique public research institution that benefits students from every walk of life, the city of Los Angeles and the world at large,” said Pritzker, who is not a UCLA alumnus but serves as a tireless benefactor and champion of the campus. “Ensuring a successful start to its second century is an investment not only in the university and its students but in everyone’s future.”

Staglin and his wife, Shari, launched the organization One Mind, which bridges gaps in mental health research and patient support, and they have been strong advocates for the UCLA Depression Grand Challenge. “UCLA is leading the way in so many areas, and it has been a privilege to see alumni and friends come together to support causes close to their hearts while advancing education, research and service that change lives,” he said.

UCLA makes its mark in higher education fundraising

At the time of its launch, the Centennial Campaign’s $4.2 billion goal was the most ambitious fundraising goal ever announced by a U.S. public university, and UCLA surpassed that target 18 months ahead of schedule. Since then, the higher education sector has continued to see an upturn in fundraising and campaigns. According to the Voluntary Support of Education survey, giving to colleges and universities grew 6.1% in 2018–19.

The same survey ranked UCLA the No. 1 public university in philanthropic funds raised for 2017–18, and the campus was included in the Chronicle of Philanthropy’s special report on multiyear campaigns in April 2019. The feature highlighted the proliferation of such fundraising drives across the country, including at several other high-profile institutions across Los Angeles.

“In a philanthropic landscape overflowing with opportunities to give, the success of the Centennial Campaign for UCLA speaks to donors’ generosity and their belief in UCLA’s mission,” said Rhea Turteltaub, UCLA’s vice chancellor for external affairs. “We take the responsibility to steward their trust very seriously, and we will continue working to ensure students’ access to education, secure resources for research and deliver on our commitment to public service every day.”

To view campaign results, read stories about gifts and beneficiaries or learn more about giving to UCLA, visit the Centennial Campaign for UCLA site and UCLA Newsroom.

This article originally appeared in the UCLA Newsroom.

Image of Kabuki actor performing

UCLA receives $25 million from Uniqlo founder for Japanese literature and culture studies

Image of Kabuki actor performing

Renowned Kabuki actor Nakamura Kyozo performing the role of a lion in “Shujaku jishi” at the Glorya Kaufman Dance Theater in an event for students co-sponsored by the Yanai Initiative and the Japanese Ministry of Culture (November 14, 2019). (Credit: Ning Wong Studios)

UCLA has received a $25 million gift from Tadashi Yanai, the chair, president and CEO of Japan-based Fast Retailing and founder of clothing company Uniqlo. The funds will endow the Tadashi Yanai Initiative for Globalizing Japanese Humanities, which will bolster UCLA’s status as a leading center for the study of Japanese literature, language and culture.

The gift is the largest from an individual donor in the history of the UCLA College’s humanities division. A previous donation of $2.5 million from Yanai in 2014 created the Yanai Initiative, a collaboration between UCLA and Waseda University, one of Japan’s most prestigious universities. The program supports academic and cultural programming and enables student and faculty exchanges between the two universities. This latest gift will ensure the initiative’s long-term future.

“Mr. Yanai’s extraordinary gifts are a testament to UCLA’s long-standing commitment to educate global citizens who can thrive in careers — and cultures — anywhere in the world,” said UCLA Chancellor Gene Block. “The Tadashi Yanai Initiative for Globalizing Japanese Humanities will have a profound and lasting impact on this campus.”

Photo of Tadashi Yanai

UCLA has received a $25 million gift from Tadashi Yanai, the chair, president and CEO of Japan-based Fast Retailing and founder of clothing company Uniqlo. (Credit: Fast Retailing Co., Ltd.)

The Yanai Initiative is housed in the UCLA College department of Asian languages and cultures and directed by Professor Michael Emmerich. The latest gift will fund and establish an endowed chair in Japanese literature and will fund conferences, public lectures, faculty research, cultural performances and community outreach. It will support graduate and postdoctoral fellowships and undergraduate awards.

“It has been inspiring to see all of the creative, innovative programming — both academic and cultural — that this project has realized over the past five years,” Yanai said. “Now that we are making it permanent, I’m excited to see how it will continue to transform the Japanese humanities in a global context. At the same time, I hope this gift will give others a chance to remember how crucial the humanities are, and, in their own way, to recommit.”

The gift also triggers matching funds from the Humanities Centennial Match and the UCLA Centennial Scholars Match to support UCLA graduate students in Japanese humanities and other areas of study.

“Mr. Yanai’s gift is a visionary investment in a field of increasing interest to humanities scholars, students and people everywhere,” said David Schaberg, UCLA’s dean of humanities. “Thanks to his generosity, UCLA will lead the way in research and teaching in Japanese humanities, bringing new attention to a rich culture that has captured people’s imaginations for centuries.”

Schaberg said another benefit of the gift is that it will deepen UCLA’s partnership with Waseda.

In addition to funding fellowships, symposia, lectures and academic workshops, Yanai’s previous donation supported a range of cultural programs, including a five-day series of events featuring actor Nomura Mansaku, who was designated a “living national treasure” by the Japanese government; a retrospective of films by Palme d’Or recipient Hirokazu Kore-eda; and “The Art of the Benshi,” which introduced Los Angeles audiences to the early 20th century performance art in which narrators bring silent movies to life with live music accompaniment.

“During the past five years, Mr. Yanai’s generosity has enabled us to do so much for students and for the Japanese humanities not just at UCLA, but across the country and around the world,” Emmerich said. “We’ve been able to organize major cultural events across Los Angeles, drawing thousands of participants. I never imagined I would be able to say that all this was only the beginning. I can’t express how grateful we all are to Mr. Yanai for his generosity, his incisive advice and his commitment.”

The gift was facilitated through a designated donations program run by the Japan Foundation, which is dedicated to promoting cultural and intellectual exchange with Japan. Over the past three decades, the foundation has helped advance and fund numerous cultural programs at UCLA.

View this release in Japanese

That Supermassive Black Hole in our Galaxy? It has a Friend.

Two black holes are entwined in a gravitational tango in this artist’s conception. Photo Credit: NASA/JPL-Caltech/SwRI/MSSS/Christopher Go

Smadar Naoz is an associate professor of physics and astronomy in the UCLA College. She wrote this article for The Conversation.

Do supermassive black holes have friends? The nature of galaxy formation suggests that the answer is yes, and in fact, pairs of supermassive black holes should be common in the universe.

I am an astrophysicist and am interested in a wide range of theoretical problems in astrophysics, from the formation of the very first galaxies to the gravitational interactions of black holes, stars and even planets. Black holes are intriguing systems, and supermassive black holes and the dense stellar environments that surround them represent one of the most extreme places in our universe.

The supermassive black hole that lurks at the center of our galaxy, called Sgr A*, has a mass of about 4 million times that of our sun. A black hole is a place in space where gravity is so strong that neither particles or light can escape from it. Surrounding Sgr A* is a dense cluster of stars. Precise measurements of the orbits of these stars allowed astronomers to confirm the existence of this supermassive black hole and to measure its mass. For more than 20 years, scientists have been monitoring the orbits of these stars around the supermassive black hole. Based on what we’ve seen, my colleagues and I show that if there is a friend there, it might be a second black hole nearby that is at least 100,000 times the mass of the sun.

Supermassive black holes and their friends

Almost every galaxy, including our Milky Way, has a supermassive black hole at its heart, with masses of millions to billions of times the mass of the sun. Astronomers are still studying why the heart of galaxies often hosts a supermassive black hole. One popular idea connects to the possibility that supermassive holes have friends.

To understand this idea, we need to go back to when the universe was about 100 million years old, to the era of the very first galaxies. They were much smaller than today’s galaxies, about 10,000 or more times less massive than the Milky Way. Within these early galaxies the very first stars that died created black holes, of about tens to thousand the mass of the sun. These black holes sank to the center of gravity, the heart of their host galaxy. Since galaxies evolve by merging and colliding with one another, collisions between galaxies will result in supermassive black hole pairs – the key part of this story. The black holes then collide and grow in size as well. A black hole that is more than a million times the mass of our sun is considered supermassive.

If indeed the supermassive black hole has a friend revolving around it in close orbit, the center of the galaxy is locked in a complex dance. The partners’ gravitational tugs will also exert its own pull on the nearby stars disturbing their orbits. The two supermassive black holes are orbiting each other, and at the same time, each is exerting its own pull on the stars around it.

The gravitational forces from the black holes pull on these stars and make them change their orbit; in other words, after one revolution around the supermassive black hole pair, a star will not go exactly back to the point at which it began.

Using our understanding of the gravitational interaction between the possible supermassive black hole pair and the surrounding stars, astronomers can predict what will happen to stars. Astrophysicists like my colleagues and me can compare our predictions to observations, and then can determine the possible orbits of stars and figure out whether the supermassive black hole has a companion that is exerting gravitational influence.

Using a well-studied star, called S0-2, which orbits the supermassive black hole that lies at the center of the galaxy every 16 years, we can already rule out the idea that there is a second supermassive black hole with mass above 100,000 times the mass of the sun and farther than about 200 times the distance between the sun and the Earth. If there was such a companion, then I and my colleagues would have detected its effects on the orbit of SO-2.

But that doesn’t mean that a smaller companion black hole cannot still hide there. Such an object may not alter the orbit of SO-2 in a way we can easily measure.

The physics of supermassive black holes

Supermassive black holes have gotten a lot of attention lately. In particular, the recent image of such a giant at the center of the galaxy M87 opened a new window to understanding the physics behind black holes.

The proximity of the Milky Way’s galactic center – a mere 24,000 light-years away – provides a unique laboratory for addressing issues in the fundamental physics of supermassive black holes. For example, astrophysicists like myself would like to understand their impact on the central regions of galaxies and their role in galaxy formation and evolution. The detection of a pair of supermassive black holes in the galactic center would indicate that the Milky Way merged with another, possibly small, galaxy at some time in the past.

That’s not all that monitoring the surrounding stars can tell us. Measurements of the star S0-2 allowed scientists to carry out a unique test of Einstein’s general theory of relativity. In May 2018, S0-2 zoomed past the supermassive black hole at a distance of only about 130 times the Earth’s distance from the sun. According to Einstein’s theory, the wavelength of light emitted by the star should stretch as it climbs from the deep gravitational well of the supermassive black hole.

The stretching wavelength that Einstein predicted – which makes the star appear redder – was detected and proves that the theory of general relativity accurately describes the physics in this extreme gravitational zone. I am eagerly awaiting the second closest approach of S0-2, which will occur in about 16 years, because astrophysicists like myself will be able to test more of Einstein’s predictions about general relativity, including the change of the orientation of the stars’ elongated orbit. But if the supermassive black hole has a partner, this could alter the expected result.

Finally, if there are two massive black holes orbiting each other at the galactic center, as my team suggests is possible, they will emit gravitational waves. Since 2015, the LIGO-Virgo observatories have been detecting gravitational wave radiation from merging stellar-mass black holes and neutron stars. These groundbreaking detections have opened a new way for scientists to sense the universe.

Any waves emitted by our hypothetical black hole pair will be at low frequencies, too low for the LIGO-Virgo detectors to sense. But a planned space-based detector known as LISA may be able to detect these waves which will help astrophysicists figure out whether our galactic center black hole is alone or has a partner.

This article originally appeared in the UCLA Newsroom.

Image of interstellar comet.

New NASA image provides more details about first observed interstellar comet

Image of interstellar comet.

The interstellar comet Comet 2I/Borisov (blueish image at right) near a spiral galaxy (left), in an image taken Nov. 16. Photo credit: NASA, ESA and David Jewitt/UCLA

A new image from NASA’s Hubble Space Telescope provides important new details about the first interstellar comet astronomers have seen in our solar system.

The comet, called Comet 2I/Borisov (the “I” stands for interstellar), was spotted near a spiral galaxy known as 2MASX J10500165-0152029. It was approximately 203 million miles from Earth when the image was taken on Nov. 16.

“Data from the Hubble Space Telescope give us the best measure of the size of comet 2I/Borisov’s nucleus, which is the really important part of the comet,” said David Jewitt, a UCLA professor of planetary science and astronomy who analyzed and interpreted the data from the new image.

Jewitt collaborated on the new analysis with colleagues from the University of Hawaii, Germany’s Max Planck Institute for Solar System Research, the Space Telescope Science Institute in Baltimore and Johns Hopkins University’s Applied Physics Laboratory. The scientists were surprised to learn that the nucleus has a radius measuring only about half of a kilometer — or less than one-fifteenth the size that earlier investigations suggested it might be.

“That is important because knowing its size helps us to determine the total number, and mass, of other similar objects in the solar system and the Milky Way,” Jewitt said. “2I/Borisov is the first known interstellar comet, and we would like to learn how many others there are.”

The comet is traveling at a breathtaking speed of 110,000 miles per hour — one of the fastest comets ever seen, Jewitt said. More commonly, comets travel at about half that speed.

Crimean astronomer Gennady Borisov discovered the comet on Aug. 30, using a telescope he built. Based on precise measurements of its changing position, the International Astronomical Union’s Minor Planet Center calculated a likely orbit for the comet, which shows that it came from elsewhere in the galaxy. Jewitt said its precise point of origin is unknown.

A second Hubble Space Telescope image of the comet, taken on Dec. 9, shows the comet even closer to Earth, approximately 185 million miles from Earth, he said.

Comets are icy bodies thought to be fragments left behind when planets form in the outer parts of planetary systems.

Observations by numerous telescopes show that the comet’s chemical composition is similar to that of comets previously observed in our solar system, which provides evidence that comets also form around other stars, Jewitt said. By mid-2020, the comet will have zoomed past Jupiter on its way back into interstellar space, where it will drift for billions of years, Jewitt said.

This article originally appeared in the UCLA Newsroom.