Dark energy in its simplest formulation takes the form of the cosmological constant term in Einstein's field equations of general relativity, but its composition and mechanism are unknown and, more generally, the details of its equation of state and relationship with the Standard Model of particle physics continue to be investigated both observationally and theoretically.

Although its causes are still being investigated, El Niño events begin when trade winds, part of the Walker circulation, falter for many months.

In 1975, the activities of COINTELPRO were investigated by the United States Senate Select Committee to Study Governmental Operations with Respect to Intelligence Activities, called the Church Committee after its chairman, Senator Frank Church ( D-Idaho ), and these activities were declared illegal and contrary to the Constitution.

Anti-war sentiment rose across the world ; the First World War was described as " the war to end all wars ", and its possible causes were vigorously investigated.

In 2000, a report by the French parliamentarians, Arnaud Montebourg and Vincent Peillon, alleged that Monaco had lax policies with respect to money laundering, including within its famed casino, and that the government of Monaco had been placing political pressure on the judiciary, so that alleged crimes were not being properly investigated.

Neodymium compounds, as with all rare earth metals, are of low to moderate toxicity ; however its toxicity has not been thoroughly investigated.

It has investigated over 140, 000 aviation incidents since its establishment.

After Dharmakirti's excursions into the subject of what constitutes a valid cognition, Śāntarakṣita and his student Kamalaśīla thoroughly investigated the subject in the Tattvasamgraha and its commentary the Panjika.

The oil issue raised its head again in 1933 after an oil strike in Bahrain — Lees had already noted that, in such an eventuality, Qatar should be investigated again.

Modern regional structure is being investigated using seismic tomography and seismic reflection in three dimensions, providing unrivaled images of the Earth's interior, its faults and the deep crust.

Road traffic congestion has been identified as a key concern for the future prosperity of the United Kingdom, and policies and measures are being investigated and developed by the government to ameliorate its effects.

It can also tolerate high concentrations of salt and heavy metals, and is being investigated for its potential as a heavy metal biosorbent.

Erfurt returned the proceedings of the meeting to the Saxon duke without signifying its approval, while Paris, after repeated urging, gave an ambiguous decision limited to " the doctrine of Luther so far as investigated ".

A Brazilian gay blog has investigated a sample of 30 murders of gay people reported on the media in 2009 — including some of those used by the GGB in its national statistic report.

After the condemnation of the Templars by Pope Clement V ( 1312 ) an ecclesiastical commission investigated the charges against the Portuguese branch of the order, and found in its favor.

The UK National Audit Office investigated the contracts and has so far never released its conclusions-the only NAO report ever to be withheld.

Due to its subtle presentation, MAIS is not typically investigated except in the case of male infertility, and thus its true prevalence is unknown.

With Professor J. G. McKendrick, of Glasgow, he investigated the physiological action of light, and examined the changes which take place in the electrical condition of the retina under its influence.

Using numerical methods to simulate Solar System behavior, long-term changes in Earth's orbit, and hence its obliquity, have been investigated over a period of several million years.

This is primarily seen in reports on aircraft accidents, but the term is used for the conclusion of diverse types of transportation accidents investigated in the United States by the National Transportation Safety Board or its predecessor, the Civil Aeronautics Board.

Simply speaking, chemical properties cannot be determined just by viewing or touching the substance ; the substance's internal structure must be affected for its chemical properties to be investigated.

* Natural theology – the discussion of those aspects of theology that can be investigated without the help of revelation scriptures or tradition ( sometimes contrasted with " positive theology ")

Broadly speaking, the social scientific approach has concerned itself with the question of “ What do games do to people ?” Using tools and methods such as surveys and controlled laboratory experiments, researchers have investigated both the positive and negative impacts that playing games could have on people.

The current licensing procedure involves: positive verification of identity, two referees of verifiable good character who have known the applicant for at least two years ( and who may themselves be interviewed and / or investigated as part of the certification ), approval of the application by the applicant's own family doctor, an inspection of the premises and cabinet where firearms will be kept and a face-to-face interview by a Firearms Enquiry Officer ( FEO ) also known as a Firearms Liaison Officer ( FLO ).

Oxygen primary ions are often used to investigate electropositive elements due to an increase of the generation probability of positive secondary ions, while caesium primary ions often are used when electronegative elements are being investigated.

HIV positive man Ricky Dyer, who investigated the apparent bug chasing phenomenon for a 2006 BBC programme, I love being HIV +, said that an air of complacency about the realities of living with the virus may be one reason why infection rates have been rising.

Rosenfield investigated the numbers and discovered the positive earnings numbers Hipp had been touting were masking difficult quarters ahead.

Duddell, a student at London Technical College, investigated this effect.

Milgram later investigated the effect of the experiment's locale on obedience levels by holding an experiment in an unregistered, backstreet office in a bustling city, as opposed to at Yale, a respectable university.

In such stand-alone episodes, Mulder and Scully investigated strange crimes which often had no long-term effect on the mythology of the show, though the episodes contributed to the show's background.

The study investigated the effect of performing attention demanding tasks on the activity of 36 neurons located in the anterior cingulate cortex.

Another clinical study investigated the effect of bilateral cingulotomy for the treatment of refractory chronic pain.

This is referred to as a Bell-Bloom magnetometer, after the two scientists who first investigated the effect.

The effect was named after the scientist Luigi Galvani, who investigated the effect of electricity on dissected animals in the 1780s and 1790s.

Newman ( 1994 ) investigated this effect and found that suppliers in Japan charged JIT customers, on average, a 5 % price premium.

The effect was investigated in one study by NASA for use in space colonies.

The mechanisms of chemical reactions can be investigated by observing how the kinetics of a reaction is changed by making an isotopic modification of a substrate, known as the kinetic isotope effect.

Three other studies have investigated the effect of resveratrol on the risk of cancer in normal mice living out a normal lifespan ; all of them have found resveratrol supplementation has no significant effect on the burden of tumors, nor on the rate of cancer death.

Recent studies involving the hindsight bias have investigated the effect age has on the bias, how hindsight may impact interference and confusion, and how it may affect banking and investment strategies.

In the De motu cordis, Harvey investigated the effect of ligatures on blood flow.

Also the Lense – Thirring effect of the Sun has been recently investigated in view of a possible detection with the inner planets in the near future.

One such study investigated the effect of interjections that differed along the criteria of lexical index ( more or less " wordy ") as well as neutral or emotional pronunciation ; a higher hemodynamic response in auditory cortical gyri was found when more robust paralinguistic data was available.

Single ions can be investigated in a Penning trap held at a temperature of 4 K. For this the ring electrode is segmented and opposite electrodes are connected to a superconducting coil and the source and the gate of a field effect transistor.

To date, in those cases which the European Food Safety Authority has investigated health claims that are made about probiotic products, it states that the evidence provided is insufficient to establish a cause and effect relationship between the consumption of the products containing probiotics and the claimed health benefits.

A " reverse " Rijke effect — namely, that a Rijke tube will also produce audio oscillations if hot air flows through a cold screen — was first observed by Rijke's assistant Johannes Bosscha and subsequently investigated by German physicist Peter Theophil Rieß.

The effect has been investigated by NASA for use in spacecrafts.

Hard disk drive manufacturers have investigated magnetic sensors based on the colossal magnetoresistance effect ( CMR ) and the giant planar Hall effect.

How much of the effect is due to artifacts remains to be investigated.