Sentences with phrase «controlled by a molecule»

Testing each of the roughly 22,000 mammalian genes against miRNAs one by one, to see which ones are controlled by the molecules, is inordinately painstaking and costly.

MN: Every part of our body is controlled by molecules, so you have to explain on a molecular level.

However, once opiate addiction had developed, the scientists observed a functional switch to a separate molecular memory pathway, controlled by a molecule called calmodulin - dependent kinase II or «CaMKII.»

Electron ejection from multiple N2 orbitals, controlled by the molecule's orientation relative to a laser, produces attosecond light spectra that can reveal molecular dynamics.

Not exact matches

And in any such case, it then becomes the interactions which experience has shown will have an impact on the molecule which controls the shape it takes and not anything intrinsic to the molecule considered in itself, or explained simply by the quantum mechanics of its constituents.

The objects of his study range from a class of molecules that have the basic self - duplicating property of living things, through cells which suggest purely physical systems, through animals which give increasing evidence of having minds, to human beings in whom streams of consciousness seem to involve continual choices of action, at the opposite pole from control by impersonal laws of nature.

Scientists Elizabeth D. Prescott and David Julius of the University of California, San Francisco, announced they had identified a lipid molecule called PIP2 that plays a crucial role in controlling the strength of the burning sensation caused by capsaicin.

«We now need to identify how this effect is pass through multiple generations by investigating the effects alcohol has on the genome and epigenome (molecules that control gene translation),» said Cameron.

«This means that one can control at will in which electrode the heat is released by simply using the proper molecule.»

Taken together, these findings show that puberty, fertility, attraction and sex are all controlled by a single molecule; kisspeptin.

But it's only because it's on the microscopic level that this structure can overcome the problem of maintenance: the molecules that control the wheel and axle reach it by diffusing through the cell's cytoplasm.

Now research in rodents suggests that gut microbes may alter the inventory of microRNAs — molecules that help keep cells in working order by managing protein production — in brain regions involved in controlling anxiety.

Varghese and her team showed that they could control the differentiation of human pluripotent stem cells into functional osteoblasts — bone - building cells — simply by adding the molecule adenosine to their growth medium.

Furthermore, the researchers found that by altering the size of the ripples, and the type of molecules on the surface, they could achieve fast and controlled motion of molecules other than water..

Fashioning individual molecules atom by atom could allow researchers to study atomic collisions in the most controlled environment possible, as well as to observe how molecules behave in isolation.

The Princeton researchers posited that they could control the light that bounces off a molecule or any substance by controlling the light shone on it, which would allow them to alter how it looks.

«Molecules for controlling bacterial behavior designed by chemists.»

By tweaking the smallest units of life, scientists are making bigger gains in producing alternative and renewable energy, with recent efforts aimed at molecule - level controls and promoting fractal growth patterns to create different fuels and improve efficiencies.

MicroRNAs are short RNA molecules that typically bind to complementary sequences in messenger RNAs, thereby controlling the amounts of specific proteins produced by cells.

«The synthetic molecules made by our lab don't exactly look like rhamnolipids, but they can control bioactivities, such as swarming movements, surface adhesion and biofilm formation.»

Using an innovative crystallization technique for studying three - dimensional structures of gene transcription machinery, an international team of researchers, led by scientists at Penn State, has revealed new insights into the long debated action of the «magic spot» — a molecule that controls gene expression in Eschericahia coli and many other bacteria when the bacteria are stressed.

First, it is a quality control mechanism used by cells to eliminate faulty messenger RNA (mRNA)-- molecules that are essential for transcribing genetic information into the construction of proteins critical for life.

Nitrogen helps plants produce proteins, including the key molecules that control photosynthesis, the process by which the sun's energy is captured and converted into the carbon compounds that are the raw material for growth.

By controlling the alignment of these molecules, scientists can literally tie them in a knot.

By varying the arrangement of molecules in the supporting layers, the scientists were able to control how often the introduced molecules switched.

Advances in understanding the cells and molecules that transmit pain signals are providing new targets for drugs that could relieve various kinds of pain — including those poorly controlled by existing therapies

A normal cell has chemical receptors on its surface that link up with specific molecules generated by the body and control the timing of such functions as eating and sleeping.

«In step toward controlling chemistry, physicists create a new molecule, atom by atom: Study paves the way for creating on, off buttons for chemical reactions.»

The team then went a step further, putting the rock and soil samples in a controlled combustion chamber that released carbon at different temperatures, allowing the carbon molecules to be sorted by their latent energy, an indicator of their chemical structure, and the amount of radiocarbon they contain.

«By integrating a light - activated molecule into the traditional picture of latent heat, we add a new kind of control knob for properties such as melting, solidification, and supercooling,» says Grossman, who is the Morton and Claire Goulder and Family Professor in Environmental Systems as well as professor of materials science and engineering.

The researchers found that the expression of a clock gene named frequency (frq) is controlled by a long non-coding RNA named qrf (frq backwards) − an RNA molecule that is complementary, or antisense, to frq.

The researchers make changes in the model such as computationally adding a potential drug or virtually knocking out the gene for a molecule produced by the immune system to search for changes that cause the granuloma to move toward a controlled state.

We were able to replicate this process in a biologically - reasonable way in the lab by controlling the electrostatic charge of the molecules that form our synthetic liquid organelles.

Molecules produced on demand by the host's genes have lots of different jobs that might help or hurt the bugs: immune responses, digestive enzymes, physiological «climate control» and metabolism, among others.

«Knowledge of the 3 - D structure of these channels is required to understand the molecular basis of channel opening and closing, and how this process is controlled by a wide variety of endogenous molecules and pharmacological modifiers,» said Rodney Kellems, Ph.D., professor and chair of the Department of Biochemistry and Molecular Biology at UTHealth Medical School.

A research team led by Shunsuke Yoshizawa, ICYS researcher, NIMS, Takashi Uchihashi, leader of the Surface Quantum Phase Materials Group, MANA, NIMS, Emi Minamitani, assistant professor, School of Engineering, University of Tokyo, Toshihiko Yokoyama, professor, IMS, NINS, and Kazuyuki Sakamoto, professor, Graduate School of Advanced Integration Science, Chiba University, succeeded in precisely controlling the transition temperature of atomic - scale - thick superconductors using magnetic organic molecules.

«In addition, we can precisely control how many molecules bind to the graphene by adjusting an applied voltage,» explains Dr. Jörg Rappich from the HZB Institute for Silicon Photovoltaics, Rösicke's advisor.

Multicomponent reactions are methods which are superior in economy and efficiency to methods of bonding molecules by repeating reactions, but it was necessary to control the number of molecules to be bonded and locations of the bonds, so their applications were limited.

This can be accomplished in part by precisely controlling the orientation of dye molecules and their distance from each other.

They form a pore with a filter that selectively allows the passage of potassium ions, and which is controlled by the signaling molecule cAMP.

Instead of slowly adding material molecule by molecule, the coral animal actively constructs large chunks of minerals that it adds to its growing skeleton, helping it grow much faster than it otherwise could, and with greater control.

These predictions, which were verified by comparisons with high - resolution microscopic images of real molecules on metal surfaces, may lead to controlled, large - scale fabrication of tiny electrical wires and other nanomaterials for future devices.

They identified signals that white blood cells use to control their behaviour, then one by one disabled those signals — discovering that one particular molecule called ERK5 could be manipulated to encourage white blood cells either to throw out pathogens better or to keep them inside and try to kill them for longer.

They now hope to create worms with artificial amino acids that can be controlled by light or specific chemicals: a toolkit that would allow researchers to switch specific cells or molecules on and off.

By applying varying amounts of ethanol and APS to paper that is coated with copolymers, the researchers were able to control the swelling and shrinking of the molecules and generate the colors and patterns needed to create a picture.

In other words, they varied the strength of chemical control by changing the molecule under study.

Scientists at the Centers for Disease Control and Prevention (CDC) also contributed by performing initial screening of the Gilead Sciences compound library to find molecules with promising antiviral activity.

Using a powerful microscope that lets researchers see the formation of crystals in real time, a team led by the Pacific Northwest National Laboratory found that negatively charged molecules — such as carbohydrates found in the shells of mollusks — control where, when, and how calcium carbonate forms.

In 1998 Aizenberg joined Bell Labs as a member of the Technical Staff where she has made several pioneering contributions including developing new biomimetic approaches for the synthesis of ordered mineral films with highly controlled shapes and orientations, and discovering unique optical systems formed by organisms (microlenses and optical fibers) that outshine technological analogs, and characterized the associated organic molecules.

Regulating cell surface glycosylation by small molecule control of enzyme localization.