The HSBC Climate Partnership (HCP) is a five-year partnership (2007-2011) between HSBC, The Smithsonian, The Climate Group, Earthwatch Institute and WWF to inspire action on climate change.
Working with these partners and engaging its employees around the world, HSBC hopes to tackle climate change impacts for people, forests, water, and cities. The HCP research of the Smithsonian's Center for Tropical Forest Science (CTFS) focuses on:
• Understanding the role of forests in the global carbon cycle
• Comparing temperate and tropical forests by establishing new plots in the temperate zone
• Quantifying the environmental services provided by tropical forests

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Animal care staff at the Smithsonian Conservation Biology Institute in Front Royal, Virginia, are hand-rearing the pair of clouded leopard cubs born on March 28, increasing the chances that the cubs will be more successful at breeding later in their life.

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It takes a Tlingit artist up to 2,000 hours, or 83 days, to weave just one ceremonial robe. Not surprisingly, this art form is practiced by a dedicated few including Tlingit artists Teri Rofkar and Shelly Laws of Alaska. In their presentation for the Smithsonian Spotlight series hosted by the Arctic Studies Center at the Anchorage Museum, Rofkar and Laws discuss the methods and cultural significance of robes, spruce root baskets and more.
For more information, go to http://www.mnh.si.edu/arctic/html/alaska.htm

The post The artistry of Tlingit weaving is practiced by a dedicated few including artists Teri Rofkar and Shelly Laws of Alaska appeared first on Smithsonian Insider.

Silent black & white archival film clip from "Japan: Promotional and Theatrical Footage, ca. 1927". The full film, which is 17 minutes long, includes segments from what are believed to be a theatrical film, a promotional film and, possibly, amateur film - all of unknown origin.

The post Geisha Hairstyling, ca. 1927, a silent black & white archival film clip from the Smithsonian’s Human Studies Film Archives appeared first on Smithsonian Insider.

The moon passed between the Earth and the sun on Thursday, Oct. 23. While avid stargazers in North America looked up to watch the spectacle, the […]

The post Polar-orbiting satellite captures amazing X-ray footage of solar eclipse appeared first on Smithsonian Insider.

Watch a keeper train the Zoo’s clouded leopard, Tai, for voluntary cheek swabs. The DNA from these cheek swabs is used to map the genealogy […]

The post Training a CLouded Leopard for Cheek Swabs appeared first on Smithsonian Insider.

On the morning of Monday, Jan. 30, 2017 a 25-pound female bobcat cat was discovered missing from its exhibit at the Smithsonian’s National Zoo in […]

The post Bobcat escapes National Zoo enclosure appeared first on Smithsonian Insider.

Jeopardy’s Clue Crew visits the Smithsonian’s National Zoo!

The post Jeopardy’s Clue Crew visits the National Zoo appeared first on Smithsonian Insider.

US Airways Flight 1549 crashed into the Hudson River on January 15, 2009. Learn how the events of that day unfolded and what happened to […]

The post Where is the Miracle on the Hudson Plane today? appeared first on Smithsonian Insider.

When Smithsonian Tropical Research Institute paleobotanist Carlos Jaramillo learned that Panama was expanding its canal in 2006 and blasting 100 million tons of rock to […]

The post Using Fossils in Panama to Model Future Climate Change appeared first on Smithsonian Insider.

Watch this video before the solar eclipse on August 21, 2017!

The post 7 Facts About Solar Eclipses appeared first on Smithsonian Insider.

We've been reporting on the city of Los Angeles approving major developments without seismic studies attached.

Steve Julian: Business analyst Mark Lacter, why is this?

Mark Lacter: Steve, this is a real gotcha moment for the L.A. Planning Department, the City Council, and everyone else at City Hall who signed off on these projects.  The latest revelation, which was reported by the L.A. Times, shows that a planned 39-story residential tower in Century City is just 300 feet from the active Santa Monica fault.  And, we're only learning about this because the Metropolitan Transportation Authority did its own seismic testing near the site when it was looking for potential subway stops, and officials decided that it was too close to the fault.  This also comes after three large-scale projects in Hollywood were found to be located quite close to the active Hollywood fault.

Julian: The concern is that if any faults were to rupture, the foundation of a building could be split apart.

Lacter: Kind of an inconvenient truth both for the developers, who have millions of dollars riding on these projects, and for L.A. city officials who are betting on a future that will include many more high rises.  And, we should note that more than two-dozen high rises are either in the process of going up, or are at least on the drawing board.  In case you're wondering why there aren't regulations that monitor this sort of thing, the answer is that there are regulations.  California has a law that requires state geologists to map active earthquake faults, and then set zones on either side of the fault line.

Julian: Has the state done this?

Lacter: The state says it hasn't had the time nor the money to map areas within the city of L.A., though the faults have been known to be in the general vicinity of these projects - and so, you'd think the city would want them tested extensively.  Of course, that would mean more delays, which the developers wouldn't be happy with.

Julian: Of course, seismic studies are not always definitive.

Lacter: They're not - and it's possible that different geologists would come up with different findings.  But so far, most of the information seems to be coming from the developers, and you have to wonder whether it's a great idea to rely on folks who have a financial interest in a project to tell us what's safe and what isn't.  Probably not.

Julian: Your article in the new issue of Los Angeles Magazine raises a broader point about the city's business climate.

Lacter: Steve, for many years, L.A. has been branded as a terrible place to do business because of government interference, but that's largely a myth.  If anything, city officials have been too accommodating.  Frankly, the anti-business rap never made much sense when you consider the thousands of companies that start up here each year.  A study by the accounting firm PricewaterhouseCoopers ranks L.A. particularly high when it comes to ease of doing business, which runs counter to the conventional wisdom.

Julian: You're not saying it's truly easy, are you?

Lacter: Easy, no.  There certainly are plenty of reasons for business owners to pull out their hair.  And those hassles, along with an unemployment rate that remains quite high, has given developers and others the leverage to ask for various giveaways.  All they have to do is say that their projects will generate more jobs, and city officials tend to respond favorably - no matter how questionable those proposals might be.  And, by the way, job creation doesn't always determine economic growth, certainly not in the short term.

Julian: We all remember during the mayoral campaign, candidates were talking about how their policies would lead to lower unemployment...

Lacter: ...right, almost like they could pick up jobs at Ralphs.  Well, it doesn't work that way.  Thing is, the city of L.A. doesn't need to cut so many deals - the local economy is rich enough and broad enough to keep prospering.  Which is why city officials would be much better off laying off the incentives, and focusing on the basics - public safety, transportation, the parks, and libraries.  Do that right, and the business climate will take care of itself.

Mark Lacter writes for Los Angeles Magazine and pens the business blog at LA Observed.com.

This content is from Southern California Public Radio. View the original story at SCPR.org.

The Encyclopedia of Life is an unprecedented global effort to document all 1.8 million named species of animals, plants and other forms of life on Earth. For the first time in the history of the planet, scientists, students, and citizens will have multi-media access to all known living species, even those that have just been discovered. The Field Museum of Natural History, Harvard University, Marine Biological Laboratory, Smithsonian Institution, and Biodiversity Heritage Library joined together to initiate the project, bringing together species and software experts from across the world. Lean more at www.eol.org

The post The Encyclopedia of Life is a global effort to document all 1.8 million named species of animals, plants and other life forms on Earth appeared first on Smithsonian Insider.

Smithsonian plant physiologist Bert Drake has studied one wetland's response to climate change for more than two decades. He gives a tour of the field experiment and explains some of the findings.

The post On the Chesapeake Bay, Smithsonian plant physiologist Bert Drake has been studying one wetland’s response to climate change for more than two decades. appeared first on Smithsonian Insider.

Ancient pollen and charcoal preserved in deeply buried sediments in Egypt’s Nile Delta document the region’s ancient droughts and fires, including a huge drought 4,200 years ago associated with the demise of Egypt’s Old Kingdom.

The post Fossil pollen used to augment climate record of Egypt’s Nile Delta appeared first on Smithsonian Insider.

A new genetic analysis has revealed that many Amazon tree species are likely to survive human-caused climate warming in the coming century, contrary to previous findings that temperature increases would cause them to die out.

The post Warming climate unlikely to cause near-term extinction of ancient Amazon trees, study says appeared first on Smithsonian Insider.

Despite many laws to protect it, a new survey reveals wild ginseng in Maryland is on the decline.

The post Wild ginseng in steep decline in Maryland, survey reveals: Q&A with Smithsonian botanist Christopher Puttock appeared first on Smithsonian Insider.

They’ve got no roots or veins and grow in hanging pendants or tightly packed mats attached to stones, soil and wood. Called by some “the […]

The post Mosses have strong potential to acclimate to global warming, study indicates appeared first on Smithsonian Insider.

Phragmites australis, the common reed, has been a component of North American marshes for thousands of years. However, a novel genetic lineage, Phragmites australis australis, […]

The post Climate change conundrum: Invasive reed makes much more methane appeared first on Smithsonian Insider.

Hidden in the thick foliage of tropical forests a subfamily of colorful beetles–the Chrysomelidae–may be hiding the secrets to the earliest stages of social behavior. […]

The post Beetle moms show clear signs of maternal instincts and care appeared first on Smithsonian Insider.

An ancient new player has entered the debate over global warming and it is pink. Labrador fishermen call them “red rocks” because underwater they resemble […]

The post Ancient algal ‘tree rings’ show dramatic decline in Arctic and sub-Arctic sea ice appeared first on Smithsonian Insider.

The hard rocklike material on which the living algae Clathromorphum compactum sits are layers of calcified crusts the algae deposit year after year. These “red […]

The post New climate ‘archive’ discovered in sub-Arctic appeared first on Smithsonian Insider.

What plant species has just been discovered but is almost gone? Bidens meyeri–a just discovered flowering plant from the small South Pacific island of Rapa, […]

The post New South Pacific cliff flower is critically endangered appeared first on Smithsonian Insider.

Although useful to Tarzan, vines endanger tropical forests’ capacity to store carbon. In a major experimental study in Panama, Smithsonian researchers showed that woody vines, […]

The post Climbing plants disturb carbon storage in tropical forests appeared first on Smithsonian Insider.

(A male golden-collared manakin cleans up his display area.) Few of us would find a marriage proposal made amidst dirty dishes and messy clutter particularly […]

The post Clean = Sexy for this Panamanian Bird appeared first on Smithsonian Insider.

The Earth’s changing climate could cause the extinction of up to a third of its parasite species by 2070, according to a global analysis reported […]

The post Study shows parasites may be among earliest victims of climate change appeared first on Smithsonian Insider.

It is shown how to reconstruct the stacking sequence from the pairwise correlation functions between layers in close-packed structures. First, of theoretical interest, the analytical formulation and solution of the problem are presented when the exact pairwise correlation counts are known. In the second part, the practical problem is approached. A simulated annealing procedure is developed to solve the problem using as initial guess approximate solutions from previous treatments. The robustness of the procedure is tested with synthetic data, followed by an experimental example. The developed approach performs robustly over different synthetic and experimental data, comparing favorably with the reported methods.

The positional change of nitro­gen-7 of the RNA constituent guanosine to the bridgehead position-5 leads to the base-modified nucleoside 5-aza-7-de­aza­guanosine. Contrary to guanosine, this mol­ecule cannot form Hoogsteen base pairs and the Watson–Crick proton donor site N3—H becomes a proton-acceptor site. This causes changes in nucleobase recognition in nucleic acids and has been used to construct stable `all-purine' DNA and DNA with silver-mediated base pairs. The present work reports the single-crystal X-ray structure of 7-iodo-5-aza-7-de­aza­guanosine, C10H12IN5O5 (1). The iodinated nucleoside shows an anti conformation at the glycosylic bond and an N conformation (O4'-endo) for the ribose moiety, with an anti­periplanar orientation of the 5'-hy­droxy group. Crystal packing is controlled by inter­actions between nucleobase and sugar moieties. The 7-iodo substituent forms a contact to oxygen-2' of the ribose moiety. Self-pairing of the nucleobases does not take place. A Hirshfeld surface analysis of 1 highlights the contacts of the nucleobase and sugar moiety (O—H⋯O and N—H⋯O). The concept of pK-value differences to evaluate base-pair stability was applied to purine–purine base pairing and stable base pairs were predicted for the construction of `all-purine' RNA. Furthermore, the 7-iodo substituent of 1 was functionalized with benzo­furan to detect motional constraints by fluorescence spectroscopy.

During evaporation of natural and synthetic K–Mg–Cl brines, the formation of almost square plate-like crystals of potassium carnallite (potassium chloride magnesium dichloride hexa­hydrate) was observed. A single-crystal structure analysis revealed a monoclinic cell [a = 9.251 (2), b = 9.516 (2), c = 13.217 (4) Å, β = 90.06 (2)° and space group C2/c]. The structure is isomorphous with other carnallite-type com­pounds, such as NH4Cl·MgCl2·6H2O. Until now, natural and synthetic carnallite, KCl·MgCl2·6H2O, was only known in its ortho­rhom­bic form [a = 16.0780 (3), b = 22.3850 (5), c = 9.5422 (2) Å and space group Pnna].

Entangled embedded periodic nets and crystal frameworks are defined, along with their dimension type, homogeneity type, adjacency depth and periodic isotopy type.

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UTLA says it is at an impasse with the Los Angeles Unified School District over a new contract for its 31,000 teachers. ; Credit: File photo by Letsdance Tonightaway/Flickr Creative Commons

The United Teachers Los Angeles declared an impasse Wednesday in its talks with the Los Angeles Unified School District.

The action opens the way for a mediator to be brought in to help bring about a settlement.

Contract talks have been ongoing since July, UTLA said on its website.

"There is still a significant gap between the two sides on compensation," the union stated. UTLA is seeking an 8.5 percent, one-year increase; LAUSD has offered a 5 percent increase. 

The union said the district is "refusing to bargain in good faith on student learning conditions, and threatening educator layoffs as a scare tactic."

LAUSD Superintendent Ramon Cortines said in a statement that the district agrees the talks are at an impasse.

"I've been disappointed and frustrated by the lack of progress toward an agreement," he said. "It's my hope that the appointment of a mediator will lead to an expeditious settlement that ultimately supports our students and the District at large."

UTLA represents 31,000 members, including teachers and health and human service professionals.

The differences between the two sides amount to more than $800 million, the district said in its statement. Cortines has maintained that the district is facing a deficit. The union insists the district has money.

Other issues dividing the two sides include class room size and teacher evaluations.

This content is from Southern California Public Radio. View the original story at SCPR.org.

File photo: Lorne Street Elementary students had to grab books from a book bin after their library was closed during the recession.; Credit: Annie Gilbertson/KPCC

More than 200 Los Angeles Unified School District elementary school libraries have reopened in just two months, according to district officials.

Recession-era budget cuts had left many libraries without staffing. The cuts persisted even when the economy began to improve: a year ago half of the district's 650,000 students were still without a librarian or library aide.

Without library workers, state law prohibits students from browsing collections, pulling reference materials or checking out books. 

“We have been living without libraries and, no, we don’t want to because they are essential for academic achievement and learning for our students," said Mark Bobrosky, a librarian at Walter Reed Middle School.

School board member Monica Ratliff created a task force to recommend ways to expand libraries after KPCC reported that Lorne Street Elementary in Northridge had a library full of books collecting dust.

"This idea of equity — we are trying to make sure we don't have library deserts," Ratliff said at the board's curriculum, instruction and assessment committee meeting on Tuesday.

Even when the board committed funds for elementary school libraries, the district found it hard to fill openings. Library aides worked just three hours a day, five days a week.

Members of the task force suggested assigning library aides to two schools, doubling their hours and providing benefits.  Elementary school libraries began to quickly reopen. 

But while conditions have improved for elementary students, middle school libraries are still hard hit, with nearly 65 percent of their campus libraries shuttered.

Bobrosky said reopening the libraries is vital for L.A. Unified's success in implementing the Common Core state standards, which require research projects incorporating a variety of texts.

This content is from Southern California Public Radio. View the original story at SCPR.org.

Simon L. Bullock
Apr 6, 2020; 133:jcs245134-jcs245134
Meeting Report

Full Text:

A new study shows that graphene sheets can block the signals mosquitoes use to identify a blood meal, potentially enabling a new chemical-free approach to mosquito bite prevention. Researchers showed that multilayer graphene can provide a twofold defense against mosquito bites. The ultra-thin yet strong material acts as a barrier that mosquitoes are unable to bite through. At the same time, experiments showed that graphene also blocks chemical signals mosquitoes use to sense that a blood meal is near, blunting their urge to bite in the first place. The findings suggest that clothing with a graphene lining could be an effective mosquito barrier.

Image credit: Hurt Lab/Brown University