70 results found

Search Results for: demonstration


Demonstration 1. The act of demonstrating; an exhibition; proof; especially, proof beyond the possibility of doubt;... Read More

How left-handed amino acids got ahead: a demonstration of the evolution of biological homochirality in the lab

A chemical reaction that demonstrates how key molecules in the biological world might have come to be predominately left or... Read More


proof 1. Any effort, process, or operation designed to establish or discover a fact or truth; an act of testing; a test; a... Read More

With Daily Alcohol Use, Male Fruit Flies Court Other Males

A team of researchers at Penn Sate has used an animal model to reveal, for the first time, a physiological basis for the... Read More

Phytoremediation – A Green Solution to Pollution

Plants may be the raw material of the future for everything from fibers to fuels, but in the meantime they're busy mending... Read More

A tradeoff between immunocompetence and sexual ornamentation in domestic fowl

A tradeoff between immunocompetence and sexual ornamentation in domestic fowl   S. Verhulst,*† S. J. Dieleman,‡ and H.... Read More

Actions of Caffeine in the Brain with Special Reference to Factors That Contribute to Its Widespread Use

IV. Actions of Caffeine on Brain Functions and Behavior Having discussed the molecular and neuronal actions of caffeine,... Read More

Bumblebee See, Bumblebee Do

Just as travelers figure out which restaurant is good by the numbers of cars in the parking lot, bumblebees decide which... Read More

Big brains arose twice in higher primates

After taking a fresh look at an old fossil, John Flynn, Frick Curator of Paleontology at the American Museum of Natural... Read More

Hope for patients with COPD

For the first time, a drug therapy appears to reduce lung function loss in patients with moderate to severe chronic... Read More

New on-off “switch” triggers and reverses paralysis in animals with a beam of light

In an advance with overtones of Star Trek phasers and other sci-fi ray guns, scientists in Canada are reporting... Read More

Molecular Motor Works By Detecting Minute Changes In Force

Researchers at the University of Pennsylvania School of Medicine discovered that the activity of a specific family of... Read More

Urban Trees Enhance Water Infiltration

MADISON, WI, NOVEMBER 17, 2008– Global land use patterns and increasing pressures on water resources demand creative... Read More

Microscopic “hands” for building tomorrow’s machines

Engineers have developed tiny, robotic hands — also known as microgrippers (above) — that could be... Read More

Case biologists show that what a neuron can do is a function of mechanical context

The brain as command center for bodily movement was too simple an idea, thought the Russian physiologist Nicolas Bernstein... Read More

Successful initial safety tests for genetically-modified rice that fights allergy

In a first-of-its-kind advance toward the next generation of genetically modified foods — intended to improve... Read More

Technology Gives 3-D View Of Human Coronary Arteries

November 18, 2008 — For the first time researchers are getting a detailed look at the interior of human coronary... Read More

Chronic Pain Harms The Brain

Comparison of brains. These images show the brain from the left side, demonstrating striking differences... Read More

Beyond Biology: Simple System Yields Custom-designed Proteins

The diversity of nature may be enormous, but for Michael Hecht it is just a starting point. Hecht, a Princeton professor... Read More

Emergency Medicine: A Comprehensive Study Guide 6th Ed by J.E. Tintinalli et al.

Emergency Medicine: A Comprehensive Study Guide 6th edition   ... Read More

What Really Prompts The Dog’s ‘Guilty Look’

June 14, 2009 — What dog owner has not come home to a broken vase or other valuable items and a guilty-looking... Read More

Conservation Of Freshwater Fish Biodiversity: A Challenge For The Countries Of The South

Scientists at the Institut de Recherche Pour le Développement (IRD) and colleagues* have made the first global-scale... Read More


Definition noun The production of offspring by organized bodies verb: reproduce To produce again; to... Read More


Logic The science that investigates the principles governing correct or reliable inference and deals with the canons and... Read More


Acquisition in psychology, the empirical demonstration of an increase in the strength of the conditioned response in... Read More


salutation The act of saluting, or paying respect or reverence, by the customary words or actions; the act of greeting, or... Read More


Diagram 1. (Science: geometry) a figure or drawing made to illustrate a statement, or facilitate a demonstration; a plan. 2.... Read More


speculative 1. Given to speculation; contemplative. The mind of man being by nature speculative. (hooker) 2. Involving, or... Read More

Passive agglutination

Definition noun An agglutination reaction of inert particles coated with soluble antigen through an antiserum specific for... Read More


Knave 1. A boy; especially, a boy servant. O murderous slumber, Lay'st thou thy leaden mace upon my boy That plays thee... Read More


salutation The act of saluting, or paying respect or reverence, by the customary words or actions; the act of greeting, or... Read More


Definition noun The process of creating an exact copy of a biological unit (e.g. a DNA sequence, cell, or organism) from... Read More

Chloroplast DNA

Definition noun plural: chloroplast DNAs DNA in the chloroplast that carries the code for proteins and RNAs essential to... Read More

Wild dolphins learn to “tail-walk” on the water, yet it’s just a fad

Dolphins performing acrobatic tricks have, time and again, fascinated and mesmerized people. As early as 1860s, capturers... Read More

SELFISH GENE – selfish to persist

What is a selfish gene? A selfish gene is not a gene that makes an individual selfish. In fact, it may even be involved in... Read More

Artificial sweeteners linked to weight gain

Cutting the connection between sweets and calories may confuse the body, making it harder to regulate intake WASHINGTON —... Read More

Electrostatics of nanosystems: Application to microtubules and the ribosome

Chemistry / Biophysics Electrostatics of nanosystems: Application to microtubules and the ribosome Nathan A. Baker*,,,... Read More

Shared Gene Switch For All Plants Found

A gene-switching mechanism dating back 400 million years to the very first plants that made it onto land has been found by... Read More

Modifications render carbon nanotubes nontoxic

Rice team mitigates toxicity of tiny cylinders with chemical changes HOUSTON, Oct. 26, 2005 -- In follow-on work to last... Read More

PaleoBase: Macrofossils, Part 3 (Single User)

PaleoBase: Macrofossils, Part 3 (Single User)     ... Read More