Author: WeWorldMedia-admin

Solid or liquid? Scientists accurately predict complex tissue changes in fruit fly embryos

Published: 9 April 2025
Categories: National Science Foundation

RSS feed source: National Science Foundation

Funded by the U.S. National Science Foundation, scientists have accurately modeled particular cellular changes in Drosophila melanogaster, or the fruit fly, during embryonic development. When certain tissue shrinks dramatically to close a gap during the fruit fly embryo’s growth, the cells remain elastically solid rather than turning into a liquid form as expected. The model created by the researchers shows how this phenomenon happens and may lead to a new form of condensed matter physics with potential applications in neuroscience, biology and artificial intelligence.

The findings, published in Proceedings of the National Academy of Sciences, also revealed a surprising connection to the work that earned the 2024 Nobel Prize in physics.

“During the dorsal closure process, tissue, called amnioserosa, is shrinking like mad, and by all accounts, it should turn into a fluid,” says Andrea Liu, University of Pennsylvania theoretical physicist and author on the research. “But it doesn’t. The cells stay locked in place with their neighbors, and we wanted to understand why.”

Time-lapse video of fruit fly dorsal closure

Credit: I. Tah, D. Haertter, J.M. Crawford, D.P. Kiehart, C.F. Schmidt, A.J. Liu, PNAS.

Time-lapse video showing the microscopic dorsal closure process in a fruit fly embryo. The superimposed yellow dots represent the cellular movements predicted by the researchers’ model.

The researchers used a method introduced

Click this link to continue reading the article on the source website.

Seven Days Left to Submit Your Right of Entry (ROE) Form to LA County

Published: 9 April 2025
Categories: FEMA News

RSS feed source: National Science Foundation

LOS ANGELES – Property owners have seven days left to submit a Right of Entry (ROE) form to LA County. In order to have debris removed by the U.S. Army Corps of Engineers (USACE), property owners affected by the Los Angeles Wildfires must submit a ROE form by April 15, 2025. 

Federally funded debris removal is available to residents of single family and owner-occupied multi-family units. 

All disaster impacted property owners should submit a ROE form by April 15, 2025, to opt-in or opt-out of the debris removal program. 

If a property owner opts out of the USACE debris removal program, they become responsible for all permits, inspections and other associated debris removal requirements and costs. 

There is no out-of-pocket cost to have debris removed by USACE, however the program is unable to duplicate other forms of funding specific to debris removal. If a property owner has insurance for debris removal, residual funds not used by the property owner may be remitted to the county to offset the cost of debris removal at a later date.

Submit a ROE form to LA County:Contact Los Angeles County for more information about debris removal: 

Follow FEMA online, on X @FEMA or @FEMAEspanol, on FEMA’s Facebook page or Espanol page and at FEMA’s YouTube account. For preparedness information follow the Ready Campaign on X at @Ready.gov, on Instagram @Ready.gov or on the Ready Facebook page.

California is committed to supporting

Click this link to continue reading the article on the source website.