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Categories: Biology: Developmental, Mathematics: General

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Biology: Biotechnology Biology: Developmental Biology: Genetics Biology: Molecular
Published

Cells avoid multitasking      (via sciencedaily.com) 

Textbooks will tell you that in dividing cells, production of new DNA peaks during the S-phase, while production of other macromolecules, such as proteins, lipids, and polysaccharides, continues at more or less the same level. Molecular biologists have now discovered that this is not true: protein synthesis shows two peaks and lipid synthesis peaks once.

Biology: Biotechnology Biology: Developmental Biology: Genetics Biology: Microbiology Biology: Molecular
Published

Successful cure of HIV infection after stem cell transplantation, study suggests      (via sciencedaily.com) 

Haematopoietic stem cell transplantation for the treatment of severe blood cancers is the only medical intervention that has cured two people living with HIV in the past. An international group of physicians and researchers has now identified another case in which HIV infection has been shown to be cured in the same way. The successful healing process of this third patient was for the first time characterized in great detail virologically and immunologically over a time span of ten years.

Engineering: Robotics Research Mathematics: General Mathematics: Modeling Offbeat: Computers and Math Offbeat: Plants and Animals
Published

Reaching like an octopus: A biology-inspired model opens the door to soft robot control      (via sciencedaily.com) 

Octopus arms coordinate nearly infinite degrees of freedom to perform complex movements such as reaching, grasping, fetching, crawling, and swimming. How these animals achieve such a wide range of activities remains a source of mystery, amazement, and inspiration. Part of the challenge comes from the intricate organization and biomechanics of the internal muscles.

Biology: Developmental
Published

Using the power of artificial intelligence, new open-source tool simplifies animal behavior analysis      (via sciencedaily.com) 

A team has developed a new software tool to help researchers across the life sciences more efficiently analyze animal behaviors.

Chemistry: Organic Chemistry Computer Science: General Computer Science: Quantum Computers Mathematics: General Mathematics: Modeling Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

Theory can sort order from chaos in complex quantum systems      (via sciencedaily.com) 

Theoretical chemists have developed a theory that can predict the threshold at which quantum dynamics switches from 'orderly' to 'random,' as shown through research using large-scale computations on photosynthesis models.

Biology: Developmental Biology: Evolutionary Biology: Marine Biology: Molecular Ecology: Sea Life
Published

Single gene causes sea anemone's stinging cell to lose its sting      (via sciencedaily.com) 

When scientists disabled a single regulatory gene in a species of sea anemone, a stinging cell that shoots a venomous miniature harpoon for hunting and self-defense shifted to shoot a sticky thread that entangles prey instead, according to a new study.

Biology: Developmental
Published

Rewiring blood cells to give rise to precursors of sperm      (via sciencedaily.com) 

Scientists transform blood cells to regain a flexible fate, growing into a precursor of sperm cells.

Biology: Developmental Biology: Microbiology Ecology: Animals
Published

First stem cells from a bat species known to harbor SARS-CoV-2 could shed light on virus survival and molecular adaptability      (via sciencedaily.com) 

Researchers have generated the first induced pluripotent stem cells (iPSCs) from bats, gaining valuable insights into the close relationship between bats and viruses.

Biology: Developmental
Published

Scientists make stunning discovery, find new protein activity in telomeres      (via sciencedaily.com) 

Researchers made the stunning discovery that telomeres contain genetic information to produce two small proteins, one of which they found is elevated in some human cancer cells, as well as cells from patients suffering from telomere-related defects.

Biology: Developmental Mathematics: General Mathematics: Modeling
Published

AI analyzes cell movement under the microscope      (via sciencedaily.com) 

Using artificial intelligence (AI), researchers can now follow cell movement across time and space. The method could be very helpful for developing more effective cancer medications.

Biology: Developmental
Published

Drug alleviates autism-associated behavior in mice      (via sciencedaily.com) 

The behavioral disorders observed in autism are associated with a multitude of genetic alterations. Scientists have now found another molecular cause for this condition. The transcription factor MYT1L normally protects the molecular identity of nerve cells. If it is genetically switched off in human nerve cells or in mice, the functional changes and symptoms typical of autism occur. A drug that blocks sodium channels in the cell membrane can reverse the consequences of MYT1L failure and alleviate the functional and behavioral abnormalities in mice.

Mathematics: General Mathematics: Modeling
Published

Scientific AI's 'black box' is no match for 200-year-old method      (via sciencedaily.com) 

A new study finds that a 200-year-old technique called Fourier analysis can reveal crucial information about how the form of artificial intelligence called deep neural networks (DNN) learn to perform tasks involving complex physics. Researchers discovered the technique can directly connect what a DNN has learned to the physics of the complex system the DNN is modeling.

Biology: Developmental Offbeat: Plants and Animals Physics: Acoustics and Ultrasound
Published

Creating 3D objects with sound      (via sciencedaily.com) 

Scientists have created a new technology to assemble matter in 3D. Their concept uses multiple acoustic holograms to generate pressure fields with which solid particles, gel beads and even biological cells can be printed. These results pave the way for novel 3D cell culture techniques with applications in biomedical engineering.

Biology: Developmental Biology: Evolutionary
Published

Genetic switch makes the eyes of male bees large and of female bees small      (via sciencedaily.com) 

Bee researchers have identified a new gene in honeybees, which is responsible for the dimorphic eye differentiation between males and females of the species. The researchers have now presented this gene and the evolutionary genetic conclusions they have drawn from it.

Biology: Developmental
Published

Previously unknown cell mechanism could help counter cancer and aging      (via sciencedaily.com) 

In a new study, researchers discovered an unknown mechanism of how cells 'remember' their identity when they divide -- the cells' so-called epigenetic memory.

Biology: Developmental Computer Science: General Mathematics: Modeling
Published

Computer model IDs roles of individual genes in early embryonic development      (via sciencedaily.com) 

Computer software can predict what happens to complex gene networks when individual genes are missing or dialed up more than usual. Mapping the roles of single genes in these networks is key to understanding healthy development and finding ways to regrow damaged cells and tissues. Understanding genetic errors could provide insight into birth defects, miscarriage or even cancer.

Biology: Developmental Biology: Microbiology Offbeat: Plants and Animals
Published

Human brain organoids respond to visual stimuli when transplanted into adult rats      (via sciencedaily.com) 

Researchers show that brain organoids -- clumps of lab-grown neurons -- can integrate with rat brains and respond to visual stimulation like flashing lights.

Computer Science: General Computer Science: Quantum Computers Mathematics: General Mathematics: Modeling Physics: Quantum Computing Physics: Quantum Physics
Published

Researchers take a step toward novel quantum simulators      (via sciencedaily.com) 

If scaled up successfully, the team's new system could help answer questions about certain kinds of superconductors and other unusual states of matter.