PRESS-NEWS.org - Press Release Distribution
PRESS RELEASES DISTRIBUTION

Ancient Maya blessed their ballcourts

Researchers find evidence of ceremonial offerings beneath ballcourt in Mexico

Ancient Maya blessed their ballcourts
2024-04-26
(Press-News.org) For sports fans, places like Fenway Park, Wembley Stadium or Wimbledon's Centre Court are practically hallowed ground.

Archaeologists at the University of Cincinnati found evidence of similar reverence at ballcourts built by the ancient Maya in Mexico.

Using environmental DNA analysis, researchers were able to identify a collection of plants used in ceremonial rituals in the ancient Maya city of Yaxnohcah. The plants, known for their religious associations and medicinal properties, were discovered beneath a plaza floor upon which a ballcourt was built.

Researchers said the ancient Maya likely made a ceremonial offering during the ballcourt’s construction.

“When they erected a new building, they asked the goodwill of the gods to protect the people inhabiting it,” UC Professor David Lentz said. “Some people call it an ensouling ritual, to get a blessing from and appease the gods.”

The study was published in the journal PLOS ONE.

The research was carried out through Mexico's National Institute of Anthropology and History in collaboration with researchers from the University of Calgary, the Autonomous University of Campeche and the National Autonomous University of Mexico.

Researchers from 2016 to 2022 worked at Yaxnohcah in Campeche about 9 miles north of the border of Guatemala, where they excavated a small area of a ballcourt.

The ancient Maya played several ball games, including pok-a-tok, which has rules similar to soccer and basketball. Players tried to get a ball through a ring or hoop on a wall.

UC Professor Emeritus Nicholas Dunning said when buildings were expanded or repurposed, as with the ballcourt, the ancient Maya made offerings to bless the site. Archaeologists sometimes find ceramics or jewelry in these offerings along with plants of cultural significance.

“We have known for years from ethnohistorical sources that the Maya also used perishable materials in these offerings, but it is almost impossible to find them archaeologically, which is what makes this discovery using eDNA so extraordinary,” Dunning said.

Ancient plant remains are rarely discovered in tropical climates, where they decompose quickly. But using environmental DNA, researchers were able to identify several types known for their ritual significance.

They discovered evidence of a morning glory called xtabentun, known for its hallucinogenic properties, lancewood, chili peppers and jool, the leaves of which were used to wrap ceremonial offerings.

Botanist and UC Associate Professor Eric Tepe said finding evidence of these plants together in the same tiny sediment sample is telling. He has studied modern plants in the same forests once traveled by the ancient Maya.

“I think the fact that these four plants which have a known cultural importance to the Maya were found in a concentrated sample tells us it was an intentional and purposeful collection under this platform,” Tepe said.

Researchers noted the challenge of trying to interpret a collection of plants through the opaque lens of 2,000 years of prehistory. But Lentz said the findings help add to the story of this sophisticated culture.

Researchers believe the ancient Maya devised water filtration systems and employed conservation-minded forestry practices. But they were helpless against years-long droughts and also are believed to have deforested vast tracts for agriculture.

“We see the yin and yang of human existence in the ancient Maya,” Lentz said. “To me that’s why they’re so fascinating.”

END

[Attachments] See images for this press release:
Ancient Maya blessed their ballcourts Ancient Maya blessed their ballcourts 2

ELSE PRESS RELEASES FROM THIS DATE:

Curran named Fellow of SAE, ASME

Curran named Fellow of SAE, ASME
2024-04-26
Scott Curran, group leader for Fuel Science and Engine Technologies Research at the Department of Energy’s Oak Ridge National Laboratory, has been named a Fellow of SAE International and the American Society of Mechanical Engineers, or ASME.  Curran is one of only 24 fellows selected from the more than 128,000 SAE members and one of only 3,336 fellows selected out of the 69,247 ASME members. SAE recognized Curran for his distinguished contributions to transportation science, including advancing real-world advanced combustion strategies, alternative fuels utilization, and next-generation vehicle technologies for a more sustainable mobility future. ...

Computer scientists unveil novel attacks on cybersecurity

Computer scientists unveil novel attacks on cybersecurity
2024-04-26
Researchers have found two novel types of attacks that target the conditional branch predictor found in high-end Intel processors, which could be exploited to compromise billions of processors currently in use.  The multi-university and industry research team led by computer scientists at University of California San Diego will present their work at the 2024 ACM ASPLOS Conference that begins tomorrow. The paper, "Pathfinder: High-Resolution Control-Flow Attacks Exploiting the Conditional Branch Predictor," is based on findings from scientists from UC San ...

Florida International University graduate student selected for inaugural IDEA2 public policy fellowship

Florida International University graduate student selected for inaugural IDEA2 public policy fellowship
2024-04-26
The American Institute of Biological Sciences (AIBS) and the Southeastern Universities Research Association (SURA) are pleased to announce that Kristine Zikmanis has been selected for the 2024 Inclusive, Diverse, Equitable, Accepting, and Accessible (IDEA2) Public Policy Fellowship. This new professional development opportunity provides young scientists with valuable first-hand experience in science policy. Kristine Zikmanis is a Ph.D. candidate in the Department of Biological Sciences at Florida International University. As an ecologist, Zikmanis studies animal behavior and has a strong interest in research at the intersection of ecology and ...

Gene linked to epilepsy, autism decoded in new study

2024-04-26
SCN2A related-disorders, although rare in the general population, are one of the more common single-gene neurodevelopmental conditions characterized by infantile seizures, autism spectrum disorder and intellectual disabilities Severity of these disorders varies widely from person to person Findings should help better identify patients who are most appropriate for clinical trials of new precision medicines and gene therapies CHICAGO --- A genetic change or variant in a gene called SCN2A is a known cause of infantile seizures, autism spectrum disorder and intellectual disability, as well as a wide range of other moderate-to-profound impairments in mobility, ...

OHSU study finds big jump in addiction treatment at community health clinics

2024-04-26
The number of health care professionals able to write a prescription for a key medication to treat addiction quadrupled at community health clinics from 2016 to 2021, according to a new study by researchers at Oregon Health & Science University. The findings, published online today in the journal JAMA Health Forum, provides a glimmer of hope amid a national overdose epidemic that has claimed more than 100,000 lives in the United States in each of the past few years. The study examined community health centers serving low-income people primarily in West Coast states. Researchers ...

Location, location, location

Location, location, location
2024-04-26
Riverside, Calif. -- In unincorporated communities in the United States-Mexico borderlands, historically and socially marginalized populations become invisible to the healthcare system, showing that geography acts as a structural determinant of health for low-income populations. So concludes a study by a University of California, Riverside, team that focused its attention on the borderland in Southern California, specifically, eastern Coachella Valley. From September to December 2020, the team, led by Ann Cheney, an associate professor of social medicine, population, and public health in the School of Medicine, conducted interviews in collaboration with ...

Getting dynamic information from static snapshots

Getting dynamic information from static snapshots
2024-04-26
Imagine predicting the exact finishing order of the Kentucky Derby from a still photograph taken 10 seconds into the race. That challenge pales in comparison to what researchers face when using single-cell RNA-sequencing (scRNA-seq) to study how embryos develop, cells differentiate, cancers form, and the immune system reacts. In a paper published today in Proceedings of the National Academy of Sciences, researchers from the UChicago Pritzker School of Molecular Engineering and the Chemistry ...

Food insecurity is significant among inhabitants of the region affected by the Belo Monte dam in Brazil

Food insecurity is significant among inhabitants of the region affected by the Belo Monte dam in Brazil
2024-04-26
The social and environmental impact of the Belo Monte dam and hydroelectric power plant in Pará state, Brazil, has been called a “disaster” by researchers, environmentalists and several media outlets. The damage has again been highlighted recently in an inspection report issued by the Brazilian Institute for the Environment and Renewable Natural Resources (IBAMA), an agency of the Ministry for the Environment and Climate Change. The inspectors detected silting and erosion of the Xingu River, obstacles to river navigation, a significant ...

The Society of Thoracic Surgeons launches new valve surgery risk calculators

2024-04-26
CHICAGO (April 26, 2024) ─ The expanding use of transcatheter technologies has changed the landscape in the treatment of valvular disease in adult cardiac patients, with valve surgery rapidly shifting to more complex interventions frequently involving other concomitant procedures. To inform heart team and patient decision-making on valve surgery, The Society of Thoracic Surgeons (STS) has launched new risk calculators for isolated tricuspid valve repair and replacement; surgical aortic valve replacement (SAVR) after ...

Component of keto diet plus immunotherapy may reduce prostate cancer

Component of keto diet plus immunotherapy may reduce prostate cancer
2024-04-26
Adding a pre-ketone supplement — a component of a high-fat, low-carb ketogenic diet — to a type of cancer therapy in a laboratory setting was highly effective for treating prostate cancer, researchers from the University of Notre Dame found. Recently published online in the journal Cancer Research, the study from Xin Lu, the John M. and Mary Jo Boler Collegiate Associate Professor in the Department of Biological Sciences, and collaborators tackled a problem oncologists have battled: Prostate cancer is resistant to a type of immunotherapy called immune checkpoint blockade (ICB) ...

LAST 30 PRESS RELEASES:

Jeonbuk National University study shows positive parenting can protect adolescents against self-harm

Surface-engineered ZnO nanocrystals to tackle perfluoroalkyl substance contamination

This new understanding of T cell receptors may improve cancer immunotherapies

A new fossil face sheds light on early migrations of ancient human ancestor

A new immunotherapy approach could work for many types of cancer

A new way to diagnose deadly lung infections and save lives

40 percent of MRI signals do not correspond to actual brain activity

How brain-inspired algorithms could drive down AI energy costs

Gum disease may be linked to plaque buildup in arteries, higher risk of major CVD events

Contrails are a major driver of aviation’s climate impact

Structure of dopamine-releasing neurons relates to the type of circuits they form for smell-processing

Reducing social isolation protects the brain in later life   

Keeping the heart healthy increases longevity even after cancer

Young adults commonly mix cannabis with nicotine and tobacco

Comprehensive review illuminates tau protein's dual nature in brain health, disease, and emerging psychiatric connections

Book prepares K-12 leaders for the next public health crisis

Storms in the Southern Ocean mitigates global warming

Seals on the move: Research reveals key data for offshore development and international ecology

Sports injuries sustained during your period might be more severe

World's first successful 2 Tbit/s free-space optical communication using small optical terminals mountable on satellites and HAPS

Can intimate relationships affect your heart? New study says ‘yes’

Scalable and healable gradient textiles for multi‑scenario radiative cooling via bicomponent blow spinning

Research shows informed traders never let a good climate crisis go to waste

Intelligent XGBoost framework enhances asphalt pavement skid resistance assessment

Dual-function biomaterials for postoperative osteosarcoma: Tumor suppression and bone regeneration

New framework reveals where transport emissions concentrate in Singapore

NTP-enhanced lattice oxygen activation in Ce-Co catalysts for low-temperature soot combustion

Synergistic interface engineering in Cu-Zn-Ce catalysts for efficient CO2 hydrogenation to methanol

COVID-19 leaves a lasting mark on the human brain

Scientists use ultrasound to soften and treat cancer tumors without damaging healthy tissue

[Press-News.org] Ancient Maya blessed their ballcourts
Researchers find evidence of ceremonial offerings beneath ballcourt in Mexico