Sentences with phrase «polyclad flatworm»

As the embryo and then fetus grow we move through levels of potential consciousness that start out lower than a flatworm.

Inspired by flatworm memory experiments from the 1950s, researchers are on the hunt for the elusive engram — the physical mark that a memory leaves on the brain — Laura Sanders reported in «Somewhere in the brain is a storage device for memories» (SN: 2/3/18, p. 22).

One of those ideas comes from the work of James Vernon McConnell, who reported some six decades ago that memories could somehow be transferred from one flatworm to another.

Flatworm experiments that showed worms could retain a memory after losing and regrowing their heads reminded reader Will Juncosa of a similar science fair experiment that he and his brother attempted.

«Additionally, the field study indicated that the diversity of these predators was a better predictor of flatworm infections than nutrients, frog immunity or the diversity and abundance of hosts.»

In the study, which included a series of laboratory experiments, field surveys and mathematical modeling, the presence of various species of dragonfly larvae reduced the infections in frogs caused by parasitic flatworms called trematodes, said Val Beasley, professor and head of the department of veterinary and biomedical sciences, Penn State, who worked with Rohr and whose research group collaborated with Lucinda Johnson, senior research associate and director of the Center for Water and the Environment, University of Minnesota Duluth, to complete the field study.

«In our wetland survey, our microcosms and disease models, we discovered that there were fewer flatworms in frogs where there were more species of flatworm predators,» said Rohr.

Near the top of that list is the New Zealand flatworm, a relative newcomer to Ireland's shores, which feeds on native earthworms that provide important ecosystem services as well as currying favor with farmers for enhancing the fertility and drainage of agricultural soils.

There are enough troublesome pests in Ireland today, such as the introduced New Zealand flatworm, which people would like to send on its merry way with some modern - day St. Patrick - style sorcery.

It was classified as a flatworm, then, in the 1990s as a simplified mollusk.

They sequenced the first whole animal, the flatworm, in 1998, and then pushed the systems to handle big chunks of bigger genomes — billions of base pairs.

And all of this has been developed for the first time in the flatworm model system.»

The authors believe that these tools and methods will lay the foundation for crucial breakthroughs in the flatworm model system and in our understanding of stem cell biology and the process of regeneration.

Now, a team of scientists from the Institute for Stem Cell Biology and Regenerative Medicine (inStem) and the National Centre for Biological Sciences (NCBS) have found that many messenger molecules in the flatworm Schmidtea mediterranea have alternate forms that vary in the lengths and positions of their tails.

Levin is now studying flatworms as obsessively as tadpoles.

They are flatworms, among the simplest of animals, without even a circulatory or digestive system.

Himasthla species B is the first flatworm ever seen dividing into castes.

Postdoctoral Research Associate Chris Arnold, Ph.D., his advisor Alejandro Sánchez Alvarado, Ph.D., and their collaborators find that ailing flatworms experience a dramatic expansion of pathogenic Proteobacteria that closely mirrors changes associated with human ailments.

Other types of plant, insects and flatworms were also found.

As flatworms age, or should they encounter cellular damage, they have the ability to renew their cells.

This flatworm investigation does not require power or interaction from the station crew.

The Persian carpet flatworm, the cuttlefish and the black ghost knifefish look nothing like each other — their last common ancestor lived 550 million years ago, before the Cambrian period — but a new study uses a combination of computer simulations, a robotic fish and video footage of real fish to show that all three aquatic creatures have evolved to swim with elongated fins using the same mechanical motion that optimizes their speed, helping to ensure their survival.

So, it's funny to think of returning to flatness aboard the International Space Station, but this outpost currently houses flatworms for research.

A team of researchers from Kentucky Space LLC and the Center for Regenerative and Developmental Biology at Tufts University in Medford, Massachusetts, will use the worms to observe repair processes and wound - healing done by cells in space during the Flatworm Regeneration investigation.

The results obtained in this first flatworm study between Kentucky Space and Tufts University will become the basis for their next phase of research in regenerative medicine.

Flatworms with amputated heads or tails are contained inside sealed test tubes for this study.

A new study launched aboard SpaceX's fifth commercial resupply services (CRS) mission to the space station examines the reparative processes of flatworms in microgravity.

Schistosomiasis infects people when they wade in freshwater containing the parasitic flatworms.

The research plan stipulates that the flatworms return alive upon landing.

When these chemicals enter streams and ponds, they increase the amount of algae, which is then eaten by snails that serve as a host for the flatworms.

Barely the length of a fingernail, the Southeast Asian liver fluke is a flatworm that thrives in the freshwater lakes and rivers of the Mekong basin.

Each flatworm has both male and female sex organs, so a mating pair throws down to decide who will give and who will receive.

The researchers launched a set of flatworms into space via SpaceX Commercial Resupply Service Mission 5 on Jan. 10, 2015.

Researchers led by the Allen Discovery Center at Tufts University sought to determine how microgravity and micro-geomagnetic fields would affect the growth and regeneration of planarian flatworms (D. japonica) and whether any changes would persist after the worms returned to earth.

Flatworms that spent five weeks aboard the International Space Station are helping researchers led by Tufts University scientists to study how an absence of normal gravity and geomagnetic fields can have anatomical, behavioral, and bacteriological consequences, according to a paper to be published June 13 in Regeneration.

Tourists spending a recuperative holiday on the Italian coast may be envious of the regenerative abilities of locally found flatworm Macrostomum lignano.

The flatworm is ideal for studying stem cells, says lead author Kaja Wasik, who conducted the work as a PhD student in Hannon's lab along with co-lead author James Gurtowski from Schatz's lab.

Platydemus manokwari, the New Guinea flatworm, consumes land snails and thus endangers endemic species.

«This flatworm can regenerate every part of its body except the brain,» says Hannon.

In addition to their natural spread, flatworms can easily be passively spread with infested plants, plant parts and soil.

Hannon says detailed analyses will be needed to figure out how the flatworm's stem cells are able to develop into a variety of different cell types.

The land planarian Platydemus manokwari, or New Guinea flatworm, is a highly invasive species, already reported in many territories in the Pacific area, and as well as in France.

The New Guinea flatworm, which has helped decimate some snail populations on certain Pacific islands, is now rearing its head in Florida.

«Discovery in the US of the New Guinea flatworm, one of the worst known invasive species.»

About 15 international research groups on three continents are actively working on Macrostomum flatworms, says co-author Lukas Schärer from the University of Basel.

The planarian flatworm Schmidtea mediterranea is an extraordinary animal.

Murty has since died — though his name lives on in a namesake flatworm, Pseudodiplodiscoides murtyi — and Rao could not be located to confirm the theory.

Strausfeld and Wolff looked at both the neuroanatomy and chemical composition of mushroom bodies in numerous species belonging to two major groups of invertebrates: Ecdysozoa, which includes insects, crustaceans and other arthropods such as scorpions and horseshoe crabs; and Lophotrochozoa, which includes mollusks, flatworms and segmented worms.

At least in the case of flatworms,» summarizes Rink.

These curious green flatworms — found along much of Europe's Atlantic coast — run on inbuilt solar power, meaning they never have to worry about eating.