Faster, safer target prep

New method could improve production of cancer-targeting isotopes

2023-06-29

(Press-News.org) Oak Ridge National Laboratory researchers have developed a method to simplify one step of radioisotope production — and it’s faster and safer.

ORNL produces several radionuclides from irradiated radium-226 targets, including actinium-227 and thorium-228, both used in cancer treatments. Continuously improving isotopes for human health is one of the lab’s missions.

Currently, it takes workers two weeks to prepare radium-226 targets for irradiation in the High Flux Isotope Reactor. The targets are exposed to radiation throughout the process, which involves pressing radium carbonate aluminum composite into 10 pellets — one each day — and sealing them into an aluminum capsule.

The new method uses a single, seamless aluminum liner with aluminum powder caps to press and seal the radium carbonate. This minimizes the time required to prepare targets, significantly decreasing radiation doses to workers, and also reduces the targets’ failure rate.

Researchers plan to test the new targets in an upcoming HFIR cycle. — Kristi L. Bumpus

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Health care utilization following interventions to improve social well-being

2023-06-29

About The Study: This systematic review and meta-analysis including 41 studies and 7,800 participants found that psychosocial interventions were associated with decreased health care use in most health services and increased use of outpatient care. The greatest health care decrease was among caregivers and individuals with mental illnesses and in interventions delivered 1-on-1 by health professionals. Authors: Neta HaGani, M.S.W., of the University of Sydney in Sydney, Australia, is the corresponding author. To ...

Transferring data with many colors of light simultaneously

2023-06-29

New York, NY—June 29, 2023—The data centers and high-performance computers that run artificial intelligence programs, such as large language models, aren’t limited by the sheer computational power of their individual nodes. It’s another problem — the amount of data they can transfer among the nodes — that underlies the “bandwidth bottleneck” that currently limits the performance and scaling of these systems. The nodes in these systems can be separated by more than one kilometer. Since metal wires dissipate electrical signals as heat when transferring data at high speeds, these systems transfer data via fiber-optic ...

An early predictor of cognitive decline in Parkinson’s disease

2023-06-29

Have you ever felt the strong sensation that someone is behind you, so intense that you turn around, only to see that no-one is there? This is a 'presence hallucination’. Presence hallucinations are particularly frequent but underreported in patients with Parkinson’s disease and may appear early on in the course of the disease. They are sometimes ignored by the patient, by clinicians, or brushed off as a simple side-effect of medication. Now, EPFL scientists have found that patients recently diagnosed with Parkinson’s disease and who have early hallucinations are ...

Cracking the tubulin code

2023-06-29

Tubulin is a protein that plays a crucial role in the structure and function of cells. It is the main component of microtubules, which are long, hollow fibers that provide structural support, help the cell divide, give it its shape, and act as tracks for moving molecular cargo around inside the cell. There are two types of tubulin: alpha-tubulin and beta-tubulin. Together, they form dimeric (two-part) building blocks, spontaneously assembling into microtubules that undergo further continuous cycles of assembly and disassembly. The tubulin code To fine-tune microtubules, the dimers undergo various post-translational modifications (PTMs), which are chemical modifications that occur ...

Amander T. Clark takes on new role as President of the ISSCR

2023-06-29

Skokie, IL – The ISSCR is pleased to announce Amander T. Clark, PhD, Professor of Molecular, Cell and Developmental Biology, University of California, Los Angeles (UCLA), USA, as its President. Dr. Clark’s one-year term of office leading the global society begins 1 July 2023. “I will work to ensure that the society continues to defend stem cell science and the researchers working to transform lives,” Dr. Clark said at the ISSCR 2023 Annual Meeting in Boston this month. “We will expand our engagement with the public ...

New AI tool beats standard approaches for detecting heart attacks

2023-06-29

A new machine learning model uses electrocardiogram (ECG) readings to diagnose and classify heart attacks faster and more accurately than current approaches, according to a study led by University of Pittsburgh researchers that published today in Nature Medicine. “When a patient comes into the hospital with chest pain, the first question we ask is whether the patient is having a heart attack or not. It seems like that should be straightforward, but when it’s not clear from the ECG, it can take ...

Proteins predict significant step toward development of diabetes

2023-06-29

RICHLAND, Wash.—Scientists have taken an important step forward in predicting who will develop Type 1 diabetes months before symptoms appear. In a paper published online on June 29 in Cell Reports Medicine, researchers at the Department of Energy’s Pacific Northwest National Laboratory and their colleagues identify a set of altered proteins that predict a condition known as islet autoimmunity, a precursor for everyone who will ultimately develop Type 1 diabetes. The scientists caution that the work marks a beginning, not the end, of a search for a way to predict who will develop the disease. More work needs to be done ...

Sociogenomics: The intricate science of how genetics influences sociology

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City of Hope appoints David W. Craig, Ph.D., as founding chair of its new Department of Integrative Translational Sciences within its Beckman Research Institute

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A seed survival story: How trees keep ‘friends’ close and ‘enemies’ guessing

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Turning agricultural waste into advanced materials: Review highlights how torrefaction could power a sustainable carbon future

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Honey bee "dance floors" can be accurately located with a new method, mapping where in the hive forager bees perform waggle dances to signal the location of pollen and nectar for their nestmates

Faster, safer target prep

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