Chemists Take Gold, Mass-produce Beijing Olympic Logo Aug 16, 2008
Polymer Pen Lithography uses arrays of tiny pens made of polymers to print over large areas with nanoscopic through macroscopic resolution. By simply changing contact pressure (and the amount the pens deform), as well as the time of delivery, dots of various diameters can be produced. (Science Daily)
First Indication For Embalming In Roman Greece Jul 31, 2008
In addition to macroscopic and anthropological analyses, electron microscopy and gas chromatography-mass spectrometry examinations were also performed. These showed the presence of various embalming substances including myrrh, fats and resins, but could not demonstrate clearly a conservatory influence of the surrounding lead coffin from Roman period. (Science Daily)
Melanoma Drug Boosts Recurrence-Free Survival Jul 15, 2008
"For the large group of patients with melanoma found in their sentinel node, we believe this regimen will be an attractive alternative to high-dose interferon. Some patients with macroscopic nodal disease who would not tolerate or accept high-dose interferon will also want to consider this approach," wrote Vernon Sondak, of the University of South Florida College of Medicine in Tampa, and Lawrence Flaherty, of the Wayne State University School of Medicine in Michigan. HealthDay. (MEDLINEplus)
Novel hydrogel systems for dentin regeneration Jul 5, 2008
Short peptides can be designed to self-assemble into nanofibers, form macroscopic gels, and entrap living cells. With single amino acids as building blocks, the resulting materials are non-toxic, non-inflammatory, and biodegradable. (EurekAlert!)
Asking and Answering Hard Questions Jun 22, 2008
I've had plenty of patients with recent unremarkable coronary arterial cath results who have gone on to sudden cardiac death because the catheterization procedures show only macroscopic structural and functional anomalies, and not microscopic myocardial abnormalities that might predispose to potentially fatal ventricular arrhythmias. Indeed, resting electrocardiograms (EKGs) and even cardiac stress tests augmented by roentgenographic and ultrasonographic techniques will screen for these kinds of... (Townhall.com)
Book on Ghanaian timber launched Jun 13, 2008
"The trees were selected from the forests of Ghana and also those found in other tropical countries of Africa." He said the book provided a quick reference guide for identifying trees based on taxonomical features and bark characteristics and for wood identification based on macroscopic and physical features. Dr. Oteng-Amoako said the data the book provided could also be used by decision makers in determining availability of species for commercial exploitation. (Ghana Web, Ghana)
Skin Defects Set Off Alarm With Widespread And Potentially Harmful Effects Jun 2, 2008
Macroscopic examination of a P14 mutant (N1N2CKO) compared to its wild-type littermate reveals the mutant's smaller body size yet significantly larger spleen and lymph nodes. (Credit: Notch-Deficient Skin Induces a Lethal Systemic B-Lymphoproliferative Disorder by Secreting TSLP, a Sentinel for Epidermal Integrity Demehri S, Liu Z, Lee J, Lin MH, Crosby SD, et al. PLoS Biology Vol. 6, No. 5, e123 doi:10. (Science Daily)
Nexavar Significantly Improves Overall Survival by 47 Percent in Asia-Pacific Liver Cancer Study May 16, 2008
The survival benefit was seen across multiple patient subsets analyzed, including age, extrahepatic spread and/or macroscopic vascular invasion. "Liver cancer in the Asia-Pacific region continues to grow because of a high incidence of chronic hepatitis B viral infections, which now impact approximately 275 million people in the region," said Ann-Lii Cheng, MD, PhD, Department of Internal Medicine and Department of Oncology, National Taiwan University Hospital, Taipei, Taiwan and principal... (PR Newswire)
Is God Particle the right term for massive mystery in physics? Apr 10, 2008
It seems, one thing that everyone may be overlooking is scale - macroscopic or microscopic. What is being discussed is at entirely different scales, and that will affect the truth of what is being discussed. (Reuters)
Self-assembled Mini Stem Cell Lab Mar 28, 2008
Using the right chemistry, the thick membrane structure could be designed to get conduits of charge in solar cells or nanoscale columns of catalytic nanostructures that would extend over arbitrary macroscopic dimensions. While the underlying, highly ordered structure of the sacs and membranes has dimensions on the nanoscale, the sacs and membranes themselves can be of any dimension and are visible to the naked eye. (Science Daily)
Nanomaterials Show Unexpected Strength Under Stress Mar 18, 2008
"The terms 'brittle' and 'ductile' are macroscopic terminology," Kim says ... Crystalline structures exhibited greater strength when stressed and deformed long after the critical yield point observed macroscopically. (Science Daily)
Growth Of Replacement Blood Vessels Controlled Mar 10, 2008
Characterization of nanospheres and nanosphere incorporated nano-fibrous scaffolds (A) Scanning electron micrograph of nanospheres; (B) macroscopic photographs of scaffolds before (left) and after (right) nanosphere incorporation; (C, D) scanning electron micrographs of nano-fibrous scaffolds before nanosphere incorporation at 100_ (C) and 10,000_ (D); (E, F) scanning electron micrographs of PLLA nano-fibrous scaffolds after nanosphere incorporation at 100_ (E) and10,000. (Credit: Jin et al.). (Science Daily)
Scientists Measure Force Required To Move Individual Atoms Feb 29, 2008
The problem is akin to what scientists and engineers needed to learn about construction at macroscopic sizes many decades ago. For example, building a modern bridge would be impossible without first measuring the strength of different materials, understanding the relevant forces, and comprehending how everything interacts. (Science Daily)
What Sparked Complex Life In Ancient Oceans? Feb 26, 2008
Following this second oxidation event, between 550 and 542 million years ago, there was a worldwide increase of Ediacara organisms, complex macroscopic life forms, an event recently dubbed as the Avalon Explosion. "This was when we see the first burrowing animals and biomineralizing animals in the fossil record," McFadden said. (Science Daily)
New Method For Creating Self-Assembling, Nanoscale Materials Feb 3, 2008
"You can think about this really in engineering terms using macroscopic analogs such as baskets, or lids, or holes.". To add to the list of potential applications, the team has already begun exploring additional materials that might be created using the basic phage construction scheme. (Science Daily)
Artificial Viral Shells Could Be Useful Nano-Containers Jan 23, 2008
"Although intellectually we knew that this type of self-organization occurs spontaneously, watching it happen from random shaking on the macroscopic scale was inspirational," Keinan and colleagues write in their paper. The researchers then turned to computer simulations of capsid construction, working with the dish-shaped chemical compound called corannulene. (Science Daily)
Distortion-Free Lens Technology Puts Things in a Negative Light Jan 19, 2008
Although these types of "two-dimensional metamaterials" have been around for a few years, the -led study offers researchers the ability to work with "something optically thick that could achieve a macroscopic effect," says Claire Gmachl, a Princeton electrical engineering professor and director of the Mid-Infrared Technologies for Health and the Environment (MIRTHE), a research center formed last year by the National Science Foundation. The initial reason for conducting the research was... (Scientific American)
Nanotechnology Innovation May Revolutionize Gene Detection In A Single Cell Jan 16, 2008
"In this work, we developed a water soluble nanoarray that can take advantage of the DNA self-assembling process and also have benefits that the macroscopic DNA microchip arrays do not have," said Yan. "The arrays themselves are reagents, instead of solid surface chips.". (Science Daily)
Silver-rich Lumps: Large Cluster Complexes With Almost 500 Silver Atoms Synthesized Jan 12, 2008
Tiny as they are, to some degree clusters have completely properties to those of normal sized (macroscopic) solid particles. This difference is caused by the high surface-to-volume ratio. (Science Daily)
Caught in the act: The dynamic dance of enzymes Dec 12, 2007
If one of the constants of life is change over time, implicit in this truth is how macroscopic change, such as the growth of a child, is ultimately rooted in microscopic change, such as atoms moving in a protein. Kerns study is remarkable in its ability to document the tiny flutterings of enzymes just before they do their all important catalytic work. (EurekAlert!)
Beyond A 'Speed Limit' On Mutations, Species Risk Extinction Oct 5, 2007
"We've made an important step toward finally bridging the gap between macroscopic and microscopic biology.". According to Shakhnovich, crucial aspects of an organism's evolutionary fitness can be directly inferred by inspecting its DNA sequences and analyzing how the proteins encoded by those sequences fold. (Science Daily)
New Ways to Map How the Face Ages Aug 15, 2007
Its pretty unusual to see something this new at the macroscopic, anatomical level. . (MSNBC -- Health)
Using a magnet to tune a magnet Aug 2, 2007
In the process, we demonstrate a new route to applications of magnets at higher temperatures and show how chemical disorder at the nanometre (one billionth of a meter) scale can have a huge effect on the properties of a macroscopic (centimetre scale) magnet. . (EurekAlert!)
One Cannabis Joint Equals Smoking Up to Five Cigarettes Aug 1, 2007
But unlike cigarette smoking, cannabis was rarely associated with macroscopic emphysema ... Long-term use is known to cause chronic bronchitis and airflow obstruction, but the prevalence of macroscopic emphysema, the dose-response, and the dose equivalence of cannabis with tobacco had not been determined, Dr. Beasley said ... On the other hand, macroscopic emphysema was seen in only those who smoked tobacco, either alone or in combination with cannabis. (MedPage Today)
Scientists Synthesize Brightest Fluorescent Particles Ever Apr 14, 2007
These nanostructured macroscopic silica particles have potential applications in medicine, forensic science and environmental protection, among many other uses. Sokolov's research is published in the March 5 issue of the scientific journal Small. (Science Daily)
Boron Nitride Characterized On A Nanometric Scale Mar 26, 2007
Moreover, it forms macroscopic structures (nanostructured molecular solids) through weak, van der Waals-type interactions, which, fundamentally, are in other fields of knowledge, particularly biology and supramolecular chemistry, where molecular self-assembly is dictated by these type of interactions. The UPV/EHU team has shown, on the one hand, the role played by these weak (van der Waals-type) interactions in the stability of these BN nanostructures [1] and, on the other, the properties of... (Science Daily)
'A New Theory of the Universe' article Mar 12, 2007
New experiments carried out with huge molecules called buckyballs show that quantum reality extends into the macroscopic world as well. Experiments make it clear that another weird quantum phenomenon known as entanglement, which is usually associated with the micro world, is also relevant on macro scales. (USA Today -- Tech)
Turning An Axel-Mounted Molecular Wheel Jan 25, 2007
This experiment enabled an approach to understanding at the mono-molecular scale the functionalities that are already known at a macroscopic scale. Without a wheel, some technological advances could not function. (Science Daily)
Oldest Animal Fossils May Have Been Bacteria Dec 22, 2006
The oldest-known animal eggs and embryos, whose first pictures made the cover of Nature in 1998, were so small they looked like bugs -- which, it now appears, they may have been. Lead author Jake Bailey, a graduate student in earth sciences at USC College. (Science Daily)
Antibody Extends Life Of Mice With Breast Cancer Dec 13, 2006
"In addition to providing a survival advantage," said Rittenhouse-Olson, "JAA-F11 immunotherapy reduced the metastatic tumor burden significantly, reflected by both a dramatic decline in the overall incidence of spontaneous metastasis to the lung -- 88 percent to 47 percent -- and fewer macroscopic metastatic lesions.". The research group currently is determining if JAA-F11 could increase the effectiveness of existing cancer drugs, she said, as well as studying the possibility of using the... (Science Daily)
US experts call for tighter controls on nanotechology Nov 30, 2006
"Nanomaterials are fundamentally different from their macroscopic counterparts." ... The silver would clearly flow into the environment, and the NRDC points out that silver in its macroscopic form is already known to damage aquatic organisms. (Yahoo News -- Nanotechnology)
A Walk Along An Interface Yields Its Mobility Nov 7, 2006
"Just as their study related the dance of macroscopic particles to their diffusivity, the microscopic thermal fluctuations result in interface forces that conspire towards a one-dimensional dance of the average interface position, which in turn yields its mobility in the zero driving force limit," said Alain Karma, also a co-author in the study. "The technique is remarkably efficient," noted Upmanyu. (Science Daily)
Extra Points Mailbag Oct 28, 2006
And I am talking here on a big-picture, macroscopic view. Any email landing in my box with all caps and exclamation points asserting that all would be right with the world if hadn't called two quick out-passes at Virginia is a nanosecond from the delete key. (Tarheelblue.com)
First Quantum Teleportation Between Light And Matter Oct 7, 2006
Eugene Polzik at Niels Bohr Institute in Copenhagen has now shown that the quantum states of a light pulse can also be transferred to a macroscopic object, an ensemble of 10 to the power of 12 atoms (Nature, 4 October 2006). This is the first case of successful teleportation between objects of a different nature - the one representing a "flying" medium (light), the other a "stationary" medium (atoms). (Science Daily)
Information teleported from light to matter Oct 7, 2006
The experiment involved for the first time a macroscopic atomic object containing thousands of billions of atoms. They also teleported the information a distance of half a meter but believe it can be extended further. (India Times, India -- Health/Science)
War and Embryos: Oct 4, 2006
On a macroscopic level, embryos don't look a lot like 6 month old infants, but neither does a 30 year old who has been in a terrible accident or a 99 year old man. Despite this, they are all still human and alive. (Slate)
Go to article Sep 17, 2006
In this case, the consequence of one death hasn't led to macroscopic reasoning so much as prevented it. Nick is a loss, but not a lesson. (Pittsburgh Post-Gazette, PA)
Famed architect Moneo to design Neuroscience building Sep 14, 2006
"The lab facilities will range from traditional neurophysiological setups where one is recording the activity of single neurons to brain imaging scanners that map brain activity on a macroscopic level," he added. Green Hall currently houses a four-ton, $1. (The Daily Princetonian, NJ)
Physicists Trap, Map Tiny Magnetic Vortex: Cell-sized 3-D Structure Could Hold Key For Next-gen Hard Drives Sep 10, 2006
In a research first that could lead to a new generation of hard drives capable of storing thousands of movies per square inch, physicists at Rice University have decoded the three-dimensional structure of a tornado-like magnetic vortex no larger than a red blood cell. "Understanding the nuances and functions of magnetic vortices is likely going to be a key in creating next-generation magnetic storage devices," said lead researcher Carl Rau, professor of physics and astronomy. (Science Daily)
Practice made perfect: Swans reap the rewards of doctor's train ofthought Sep 8, 2006
" Perhaps Melbourne AFL clubs are equally hidebound to history, where physiotherapy equipment is treated with the same derision as hair-dryers. The Swans concentrate on DOMS, which some may confuse with Dirty Old Man Syndrome, but in medical terms stands for Delayed Onset Muscle Soreness. Push a muscle to the limit and it adapts to the higher level, experiencing only microscopic tearing. Push it too hard and it suffers macroscopic damage. The Swans believe they have found the balance between... (Sydney Morning Herald -- Sport)
Nanoscientists Create Biological Switch From Spinach Molecule Sep 7, 2006
-- Absolute zero is a fundamental lower bound on the temperature of any macroscopic system. It is a temperature of 0 K, 273. (Science Daily)
Unusual Rods Get Thicker When Stretched, Thinner When Compressed Aug 26, 2006
In the auxetic materials known to date, the unusual behavior is a macroscopic property that stems from a special arrangement of the particles within the material, such as a particular weblike structure. Nanoscale auxetic materials are so far unknown. (Science Daily)
Scientists Succeed In Cooling Solid Material With Laser Jul 27, 2006
It is characterised by the property of a macroscopic amount of the particles of the material pass to the level of minimum energy, known as the fundamental state. (2) Rare Earths: these are elements known as Lantanides and Actinides and have an electronic structure in which the f orbitals are incomplete. (Science Daily)
Add Nanotubes And Stir -- With The Right Force Jul 24, 2006
Images show the evolution from solid-like nanotube networks (a) to macroscopically shear banded fluids (b) to small isolated nanotube aggregates (c) to individually dispersed and aligned carbon nanotubes (d) ... -- A phase is a set of states of a macroscopic physical system that have relatively uniform chemical composition and physical properties (i. (Science Daily)
Purple Haze: Ancient Pigment Reveals Secrets About Unusual State Of Matter Jul 13, 2006
-- A phase is a set of states of a macroscopic physical system that have relatively uniform chemical composition and physical properties (i ... -- Absolute zero is a fundamental lower bound on the temperature of any macroscopic system. (Science Daily)
Eighty Below And Loving It: Montana State University Scientists To Get New Cold Lab Jun 30, 2006
Posted: June 29, 2006. Half-million-year-old Antarctic ice, avalanche triggers, frost heaves in roads and the possibility of life in Martian ice caps are just a few of the research projects expected to find a home in a new cluster of labs planned for Montana State University. (Science Daily)
Team Invents Way To Mass Produce Microscopic Plastic Components Jun 6, 2006
-- Thermodynamics is a branch of physics that studies the effects of changes in temperature, pressure, and volume on physical systems at the macroscopic scale by analyzing the collective motion of their. . (Science Daily)
Evolution Reveals An Independent Route For Diversity In Animal Form May 6, 2006
(September 30, 2002) -- The traces left behind by ancient animals may hold the key to determining when macroscopic bilaterians -- animals that are symmetric about a central axis, with a body divided into equivalent right. . (Science Daily)
Scientists Precisely Measure Subtle Dance Between Matter And Antimatter Apr 13, 2006
-- A phase is a set of states of a macroscopic physical system that have relatively uniform chemical composition and physical properties (i. e. density, crystal structure, index of refraction, and so. (Science Daily)
Gold Nanoparticles Emit Intense Heat, Study Finds Apr 4, 2006
What s amazing is that we re taking particles that you can t even image with a light microscope, and all of the sudden they cause a huge change in a macroscopic system, said Richardson, whose project was funded by Ohio University s NanoBioTechnology Initiative, one of three major research priorities of the institution. The scientists will collaborate with other researchers to continue to test and design efficient nanoscale heaters in more complicated systems, such as in the cells from living... (Science Daily)
Measuring Electrical Arcs At The Micrometer Scale Apr 4, 2006
Engineers can accurately predict how this happens on the macroscopic scale--when electricity from a downed power line, for example, jumps to a nearby metal object--but less is known about the process at the micro scale. A new device and technique have been developed at the National Institute of Standards and Technology for measuring "breakdown" voltage -- the voltage required to produce electrical arcs when electrodes are 400 nanometers to 45 micrometers apart. (Science Daily)
Nanocrystals could boost photovoltaic solar energy technologies Jan 7, 2006
Such a process has never been observed in macroscopic materials and it explicitly relies on the unique physics of the nanoscale size regime. According to Richard Schaller, a Los Alamos scientist on the team, "Our research of carrier multiplication in previous years was really focused on analyzing the response of lead selenide nanocrystals to very short laser pulses. We discovered that the absorption of a single photon could produce two or even three excited electrons. We knew, somewhat... (Mongabay)
