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Different colored cartoon viruses entering holes in a cartoon of a human brain.
A Journey Into the Brain
Danielle Gerhard, PhD | Mar 22, 2024 | 10+ min read
With the help of directed evolution, scientists inch closer to developing viral vectors that can cross the human blood-brain barrier to deliver gene therapy.
The Genetics of Society
Claire Asher and Seirian Sumner | Jan 1, 2015 | 10 min read
Researchers aim to unravel the molecular mechanisms by which a single genotype gives rise to diverse castes in eusocial organisms.
Hot-Vent Microbes: Looking Backward In Evolution For Future Uses
Myrna Watanabe | May 29, 1994 | 7 min read
They live--thrive, even--in boiling water! They feed on sulfur or hydrogen. They could be from one of the moons of Jupiter. In fact, their existence here on Earth has led scientists to realize that planets they hitherto assumed to be lifeless might support life. These thermophilic, or heat- loving, microbes--Archaea--are attracting a small but growing cadre of researchers and serious research funding from the United States governmen
Hot-Vent Microbes: Looking Backward In Evolution For Future Uses
Myrna Watanabe | May 29, 1994 | 7 min read
They live--thrive, even--in boiling water! They feed on sulfur or hydrogen. They could be from one of the moons of Jupiter. In fact, their existence here on Earth has led scientists to realize that planets they hitherto assumed to be lifeless might support life. These thermophilic, or heat- loving, microbes--Archaea--are attracting a small but growing cadre of researchers and serious research funding from the United States governmen
Elemental Shortage
Brendan Borrell | Nov 1, 2010 | 10+ min read
By Brendan Borrell ELEMENTAL SHORTAGE The world is running out of cheap phosphorus, the element that lies at the heart of great agricultural advances and thorny environmental problems. Biologists are only now beginning to understand what it means for evolution and human health. James Elser at a study site in southern Norway Although a limnologist in Phoenix and a molecular biologist in Atlanta have never met before, a single element ties them together.
Illuminating Behaviors
Douglas Steinberg | Jun 1, 2003 | 6 min read
Courtesy of Genevieve Anderson If not for Nobel laureates Thomas Hunt Morgan, Eric R. Kandel, and Sydney Brenner, the notion of a general behavioral model might seem odd. Behaviors, after all, are determined by an animal's evolutionary history and ecological niche. They are often idiosyncratic, shared in detail only by closely related species. But, thanks to Morgan's research in the early 20th century, and Kandel's and Brenner's work over the past 35 years, the fly Drosophila melanogaster, t
Notebook
The Scientist Staff | Aug 30, 1992 | 3 min read
Journals, Journals Everywhere A Who's Who of Persecuted Scientists It Gets Smaller and Smaller... Mars at Coach Prices Seven Eyes Better Than One Wellcome Funding Researchers in physics and in neuroscience have new outlets for showcasing their work, as two new journals make their debut. The American Vacuum Society unveiled its new quarterly, Surface Science Spectra, in June. Journal staff, led by editors Charles E. Bryson III of Surface/Interface Inc., Mountain View, Calif., and Gary E.
Articles Alert
Bernard Dixon | Mar 5, 1989 | 7 min read
LIFE SCIENCES BY BERNARD DIXON European Editorial Offices The Scientist Uxbrldge, U.K. " Positron emission tomography studies in 20 Swedish army officer cadets have revealed metabolic changes in the same regions of the brain during both tactile learning and tactile recognition. This exciting glimpse of brain metabolism accompanying conscious activity appears in a new journal launched by the European Neurosciences Association and designed to interest the entire universe of neuroscientists, fro
Chloroplast Studies Point to Crop Enhancements
Barry Palevitz | Apr 11, 1999 | 5 min read
With news about Dolly and embryonic stem cells the stuff of cocktail party conversation, cloning a transgenic sheep or cow seems like child's play. The recipe is simple: Insert a pet gene into the nucleus of a cultured cell, fuse it with an enucleated egg, and voilà--a cow with high-octane milk. But incorporating genes into nuclear chromosomes isn't the only road to fame and fortune. Animals and plants have other sources of genetic information--their respiratory mitochondria and photosy
Notebook
Eugene Russo | Jun 20, 1999 | 7 min read
WHY X Y? Cloning is not just for females anymore. The same University of Hawaii researchers that cloned 50 healthy female mice a year ago (T. Wakayama et al., "Full-term development of mice from enucleated oocytes injected with cumulus cell nuclei," Nature, 394:369-74, July 23, 1998) recently reported the first-ever cloning of an adult male mouse (T.W. Wakayama, R. Yanagimachi, "Cloning of male mice from adult tail-tip cells," Nature Genetics, 22:127-8, June 1999). Named "Fibro" after the fibro

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