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

Re-creating the original colors of treasured ivory carvings from the ancient past

2013-05-29
(Press-News.org) The fabled ivory carvings from the ancient Phoenician city of Arslan Tash — literally meaning "Stone Lion" — may appear a dull monochrome in museums today, but they glittered with brilliant blue, red, gold and other colors 2,800 years ago, a new study has confirmed after decades of speculation. It appears in the ACS journal Analytical Chemistry.

Ina Reiche and colleagues explain that these carvings are rare, housed in museums like the Louvre, and art experts regard them as the most beautiful ivory carvings of the era. Experts long believed that the lion heads, amulets and other objects were brightly colored, rather than the bland beiges and whites that remain today. But until recently, there was no adequate way to test the ivories for traces of pigment without damaging these priceless objects.

The scientists describe how a non-destructive testing technology brought to life traces of red, blue and other pigments — and gold gilding — allowing re-creation of the long-vanished colors that decorated the original ivories. In addition to contributing to a new understanding of the Phoenician carvings, the technology could be used to glimpse the original paintings on other objects, the authors note. Those include the Elgin Marbles, the classical Greek marble sculptures that originally were part of the Parthenon and other buildings on the Acropolis in Athens.

### The authors acknowledge funding from a doctoral grant from the Université Pierre et Marie Curie (UPMC).

The American Chemical Society is a nonprofit organization chartered by the U.S. Congress. With more than 163,000 members, ACS is the world's largest scientific society and a global leader in providing access to chemistry-related research through its multiple databases, peer-reviewed journals and scientific conferences. Its main offices are in Washington, D.C., and Columbus, Ohio.

To automatically receive news releases from the American Chemical Society, contact newsroom@acs.org.

Follow us: Twitter Facebook END


ELSE PRESS RELEASES FROM THIS DATE:

Nordic diet lowers cholesterol, study finds

2013-05-29
A healthy Nordic diet lowers cholesterol levels, and therefore the risk of cardiovascular disease, a pan-Nordic study where Lund University participated has found. There was also decreased inflammation associated with pre-diabetes. - The subjects who ate a Nordic diet had lower levels of harmful LDL cholesterol and higher levels of "good" HDL cholesterol. The amount of harmful fat particles in the blood also declined, says Lieselotte Cloetens, a biomedical nutrition researcher at Lund University. The 'healthy Nordic diet' used in the study contains local produce such ...

Radiotherapy remains the treatment of first choice for high-risk low-grade glioma

2013-05-29
In a large, international, randomized trial, initial radiotherapy was compared to temozolomide chemotherapy. A statistically significant difference between the two treatment strategies was not observed for progression-free survival, although radiotherapy was numerically favored. However, molecular tumor characterization may allow the treatment approach to be personalized and one or the other treatment modality to be selected. The results of EORTC trial 22033-26033 will be presented Saturday, 01 June 2013 at an ASCO 2013 Oral Abstract Session by the coordinator of the ...

Is YouTube an effective research tool?

2013-05-29
New Rochelle, NY, May 29, 2013—YouTube has more than 10 million unique users a month who are younger than 18 years of age, making it an ideal online environment in which to study the impact of various media content and peer feedback on adolescents. A series of experiments were designed to test the effectiveness of using YouTube to present controlled media content and peer comments to teens, and to measure their preferences and moral judgments. The results are presented in Cyberpsychology, Behavior, and Social Networking, a peer-reviewed journal from Mary Ann Liebert, Inc., ...

Human scabs serve as inspiration for new bandage to speed healing

2013-05-29
Human scabs have become the model for development of an advanced wound dressing material that shows promise for speeding the healing process, scientists are reporting. Their study appears in the journal ACS Applied Materials & Interfaces. Shutao Wang and colleagues explain that scabs are a perfect natural dressing material for wounds. In addition to preventing further bleeding, scabs protect against infection and recruit the new cells needed for healing. Existing bandages and other dressings for wounds generally are intended to prevent bleeding and infections. Wang's ...

EORTC study identifies patients with anaplastic oligodendroglioma that benefit from adjuvant PCV

2013-05-29
A further report on the results of EORTC trial 26951 indicates that CpG island methylator phenotype (CIMP) status and O 6-methylguanine-DNA methyltransferase (MGMT) promoter methylation as assessed by MGMT-STP27 are the most informative for identifying grade III glioma patients who might benefit from the addition of procarbazine, CCNU and vincristine (PCV) chemotherapy to radiation therapy. Prior results had shown that PCV chemotherapy following standard radiation therapy delayed tumor growth and extended the lives of patients with anaplastic oligodendroglial tumors, a ...

Charred micro-bunny sculpture shows promise of new material for 3-D shaping

2013-05-29
Though its surface has been turned to carbon, the bunny-like features can still be easily observed with a microscope. This rabbit sculpture, the size of a typical bacterium, is one of several whimsical shapes created by a team of Japanese scientists using a new material that can be molded into complex, highly conductive 3-D structures with features just a few micrometers across. Combined with state-of-the-art micro-sculpting techniques, the new resin holds promise for making customized electrodes for fuel cells or batteries, as well as biosensor interfaces for medical uses. ...

Despite safety and other concerns, nuclear power saves lives, greenhouse gas emissions

2013-05-29
Global use of nuclear power has prevented about 1.84 million air pollution-related deaths and release of 64 billion tons of greenhouse gases that would have resulted from burning coal and other fossil fuels, a new study concludes. It appears in the ACS journal Environmental Science & Technology. Pushker A. Kharecha and James E. Hansen state that nuclear power has the potential to help control both global climate change and illness and death associated with air pollution. That potential exists, they say, despite serious questions about safety, disposal of radioactive waste ...

A new addition to the Hall of Fame of science venues

2013-05-29
A building that helped launch generations of scientists, including Nobel laureates, on their careers of discovery has joined the Hall of Fame of notable venues, being named a National Historic Chemical Landmark by the American Chemical Society (ACS). That's the topic of an article in the current edition of Chemical & Engineering News (C&EN), the weekly newsmagazine of the ACS, the world's largest scientific society. Susan J. Ainsworth, C&EN senior editor, explains that the ACS recognized the R.B. Wetherill Laboratory of Chemistry building on the Purdue University's ...

New Mayo Clinic approach could lead to blood test to diagnose Alzheimer's in earliest stage

2013-05-29
ROCHESTER, Minn. -- Blood offers promise as a way to detect Alzheimer's disease at its earliest onset, Mayo Clinic researchers say. They envision a test that would detect distinct metabolic signatures in blood plasma that are synonymous with the disease -- years before patients begin showing cognitive decline. Their study was recently published online in the journal PLOS ONE. Researchers analyzed cerebrospinal fluid and plasma samples from 45 people in the Mayo Clinic Study on Aging and Mayo Clinic Alzheimer's Disease Center (15 with no cognitive decline, 15 with mild ...

Study shows longer treatment for children with langerhans cell hystiocytosis improves survival rates

2013-05-29
Washington, DC—A new international study finds that prolonged, intense initial treatment in children with multi-system Langerhans cell histiocytosis (MS-LCH) can achieve survival rates as high as 84 percent—a full 15 percent improvement over the previous clinical trial in this series. The study, LCH-III, is published in Blood, the journal of the American Society of Hematology. It is the third in a series of international randomized clinical trials for LCH that spans twenty years initiated and coordinated by the Histiocyte Society, a group of more than 200 physicians and ...

LAST 30 PRESS RELEASES:

More than 1,000 institutions worldwide now partner with MDPI on open access

Chronic alcohol use reshapes gene expression in key human brain regions linked to relapse vulnerability and neural damage

Have associations between historical redlining and breast cancer survival changed over time?

Brief, intensive exercise helps patients with panic disorder more than standard care

How to “green” operating rooms: new guideline advises reduce, reuse, recycle, and rethink

What makes healthy boundaries – and how to implement them – according to a psychotherapist

UK’s growing synthetic opioid problem: Nitazene deaths could be underestimated by a third

How rice plants tell head from toe during early growth

Scientists design solar-responsive biochar that accelerates environmental cleanup

Construction of a localized immune niche via supramolecular hydrogel vaccine to elicit durable and enhanced immunity against infectious diseases

Deep learning-based discovery of tetrahydrocarbazoles as broad-spectrum antitumor agents and click-activated strategy for targeted cancer therapy

DHL-11, a novel prieurianin-type limonoid isolated from Munronia henryi, targeting IMPDH2 to inhibit triple-negative breast cancer

Discovery of SARS-CoV-2 PLpro inhibitors and RIPK1 inhibitors with synergistic antiviral efficacy in a mouse COVID-19 model

Neg-entropy is the true drug target for chronic diseases

Oxygen-boosted dual-section microneedle patch for enhanced drug penetration and improved photodynamic and anti-inflammatory therapy in psoriasis

Early TB treatment reduced deaths from sepsis among people with HIV

Palmitoylation of Tfr1 enhances platelet ferroptosis and liver injury in heat stroke

Structure-guided design of picomolar-level macrocyclic TRPC5 channel inhibitors with antidepressant activity

Therapeutic drug monitoring of biologics in inflammatory bowel disease: An evidence-based multidisciplinary guidelines

New global review reveals integrating finance, technology, and governance is key to equitable climate action

New study reveals cyanobacteria may help spread antibiotic resistance in estuarine ecosystems

Around the world, children’s cooperative behaviors and norms converge toward community-specific norms in middle childhood, Boston College researchers report

How cultural norms shape childhood development

University of Phoenix research finds AI-integrated coursework strengthens student learning and career skills

Next generation genetics technology developed to counter the rise of antibiotic resistance

Ochsner Health hospitals named Best-in-State 2026

A new window into hemodialysis: How optical sensors could make treatment safer

High-dose therapy had lasting benefits for infants with stroke before or soon after birth

‘Energy efficiency’ key to mountain birds adapting to changing environmental conditions

Scientists now know why ovarian cancer spreads so rapidly in the abdomen

[Press-News.org] Re-creating the original colors of treasured ivory carvings from the ancient past