Experiments are in progress to develop ultraviolet spectrophotometric techniques for assaying these enzymes and for studying their sensitivity to metal ions.

Experiments carried out over long periods of time in order to allow establishment of a steady state have shown that the onset of contraction and its completion are confined to an interval of several degrees Centigrade and to a concentration range of only several per cent.

Experiments have been conducted to attempt the synthesis of ununennium ( Uue ), which is likely to be the next member of the group, but they have all met with failure .< ref name =" link "> However, ununennium may not be an alkali metal due to relativistic effects, which are predicted to have a large influence on the chemical properties of superheavy elements.

Experiments are consistent with the number of quarks in the universe being a constant and, to be more specific, the number of baryons being a constant ; in technical language, the total baryon number appears to be conserved.

Experiments are under way to allow factory managers to fire underperforming workers and give bonuses.

Experiments show that radiographs taken with a < sup > 169 </ sup > Yb source are roughly equivalent to those taken with X-rays having energies between 250 and 350 keV.

Experiments with genetic engineering of a vaccine based on F1 and V antigens are underway and show promise.

Experiments are ongoing to cross-breed various desirable traits of wild cotton species into the principal commercial species, such as resistance to insects and diseases, and drought tolerance.

Experiments are being conducted at LLNL and elsewhere to measure the structural, electrical and chemical properties of plutonium and its alloys and to determine how these materials change over time.

Experiments on the decay and compaction of onychophora demonstrate difficulties in interpreting fossils ; certain parts of living onychophora are only visible in certain conditions.

Experiments are still underway to find an opening position, which neither devolves into a draw nor gives too great an advantage to the first player.

Instead, many philosophers prefer to consider ' Thought Experiments ' to be merely the use of a hypothetical scenario to help understand the way things actually are.

Experiments that reproduce Fitts's results and / or that demonstrate the applicability of Fitts's law in somewhat different situations are not difficult to perform.

Additionally, several pioneering nineteenth century European experimental knappers are also known and in the late 1960s and early 1970s experimental archaeologist Don Crabtree published texts such as " Experiments in Flintworking ".

Experiments have shown that administration of stress hormones to mice immediately after they learn something enhances their retention when they are tested two days later.

Among the more unusual of his papers are his Experiments and Observations on the Singing of Birds, and his Essay on the Language of Birds.

Experiments in large tanks with wave generating machines are used with model ships to study rogue waves.

Experiments in 1975 and 1982 produced candidate events that were initially interpreted as monopoles, but are now regarded as inconclusive.

* Experiments into behavior, to understand how organisms detect and interact with each other and their environment, in which fruit flies, worms, mice, and rats are all widely used.

Experiments have shown that strikes are not only guided by visual and chemical cues, but also by heat, with warmer targets being struck more frequently than colder ones.

Experiments have shown that bumblebees are able to use a combination of colour and spatial relationships in learning which flowers to forage from.

Experiments have been done that suggest that the early encoding phase, in which words are identified, is the source of the word frequency effect.

These events are described in his books Programming and Metaprogramming in the Human Biocomputer: Theory and Experiments and The Center of the Cyclone, both published in 1972.

Experiments have shown the importance of temperature but the trigger event, especially in arid regions, is often a storm.

Experiments on hereditary material during the time of the Hershey-Chase Experiment often used bacteriophages as a model organism.

Experiments were often conducted without the subjects ' knowledge or consent.

Experiments on bilayers often require advanced techniques like electron microscopy and atomic force microscopy.

Experiments on human gene function can often be carried out on other species if a homolog to a human gene can be found in the genome of that species, but only if the homolog is orthologous.

Experiments in atomic physics are often done with a laser of a specific frequency ( meaning the photons have a specific energy ), so they only couple one set of states with a particular energy to another set of states with an energy.

Experiments have indicated that the greatest amount of toxin is produced between the fifth and seventh day of attachment ( often initiating or increasing the severity of symptoms ), although the timing may vary depending on the species of tick.

" Lenski viewed the Marxist societies of the last century as important, but too often neglected, social experiments that put Marx's view of human nature to the test and found it wanting ( Lenski ," Marxist Experiments in Destratification: An Appraisal ," Social Forces, 1978 ; Gerhard Lenski, Patrick Nolan, Jean Lenski, Human Societies, 7th ed., 1995, chapter 15 ).

These results were published on February 1, 2004, by a team composed of Russian scientists at Dubna ( Joint Institute for Nuclear Research ), and American scientists at the Lawrence Livermore National Laboratory .< ref name = 03Og01 >" Experiments on the synthesis of element 115 in the reaction < sup > 243 </ sup > Am (< sup > 48 </ sup > Ca, xn )< sup > 291-x </ sup > 115 ", Oganessian et al., JINR Preprints, 2003.

Except for Apollo 11, all of the missions carried an Apollo Lunar Surface Experiments Package ( ALSEP ), composed of equipment for seven scientific experiments plus a central control station ( they were controlled from the Earth ) with a radioisotope thermoelectric generator ( RTG ).

Between 1913 and 1916, he composed his Proeven van Stijlkunst ( Experiments in Artistic Style ), inspired mainly by Mondrian's paintings.

Experiments in the UK during the 1970s and 1980s ( including outdoor CCTV in Bournemouth in 1985 ), led to several larger trial programs later that decade.

Experiments showed that males with heterosocial anxiety perceived less anxiety with females after several sessions of therapy in which they engaged in a 12-minute, purposefully biased dyadic social interactions with a separate females.

During the mission the crew deployed the communications satellites, conducted two six hour spacewalks to demonstrate space station construction techniques with the EASE / ACCESS experiments, operated the Continuous Flow Electrophoresis ( CRFES ) experiment for McDonnell Douglas and a Getaway Special ( GAS ) container for Telesat, Canada, conducted several Mexican Payload Specialists Experiments for the Mexican Government and tested the Orbiter Experiments Digital Autopilot ( OEX DAP ).

During the mission, the crew deployed the MORELOS-B, AUSSAT II, and SATCOM K-2 communications satellites, conducted 2 six-hour spacewalks to demonstrate space station construction techniques with the EASE / ACCESS experiments, operated the Continuous Flow Electrophoresis ( CFES ) experiment for McDonnell Douglas and a Getaway Special ( GAS ) container for Telesat, Canada, conducted several Mexican Payload Specialist Experiments for the Mexican Government, and tested the Orbiter Experiments Digital Autopilot ( OEX DAP ).

During the mission the crew deployed the MORELOS-B, AUSSATT II, and SATCOM K-2 communications satellites, conducted two six-hour spacewalks to demonstrate space station construction techniques with the EASE / ACCESS experiments, operated the Continuous Flow Electrophoresis ( CRFES ) experiment for McDonell Douglas and a Getaway Special ( GAS ) container for Telesat, Canada, conducted several Mexican Payload Specialists Experiments for the Mexican government, and tested the Orbiter Experiments Digital Autopilot ( OEX DAP ).

Experiments aimed at ablating neurogenesis have proven inconclusive, but several studies have proposed neurogenic-dependence in some types of learning, and others seeing no effect.

Experiments and observations show that Einstein's description of gravitation accounts for several effects that are unexplained by Newton's law, such as minute anomalies in the orbits of Mercury and other planets.

The project included several reactor experiments including high temperature reactor and engine tests collectively called the Heat Transfer Reactor Experiments: HTRE-1, HTRE-2, and HTRE-3 at the National Reactor Test Station ( now Idaho National Laboratory ) as well as an experimental high-temperature molten salt reactor at Oak Ridge National Laboratory-the ARE.

STS-119 also carried several experiments, including the Shuttle Ionospheric Modification with Pulsed Local EXhaust ( SIMPLEX ), Shuttle Exhaust Ion Turbulence Experiments ( SEITE ), and Maui Analysis of Upper Atmospheric Injections ( MAUI ).