Although more research is needed, deep-brain stimulation shows some promise for the treatment of

The question is incomplete. The complete question is as following:

A new therapeutic technique known as deep brain stimulation (DBS) is showing promise in the treatment of

a. anorexia nervosa where other treatments have failed

b. phobias.

c. personality disorders.

d. mania

a. anorexia nervosa where other treatments have failed

Explanation:

Deep brain stimulation (DBS) is a neurological technique that is used to treat many disorders with neurological symptoms such as Parkinson's disease (PD) including rigidity,  tremor, weakness, walking issues and slow processing.

It involves placing a medical device called a neurostimulator  with the ehlp of implanted electrodes, that sends electrical impulses to specific brain targets (brain nuclei) for the treatment of movement disorders.

Anorexia nervosa or anorexia is an eating disorder where a person feels self-starvation and excessive weight loss.

Deep brain stimulation (DBS) are use for the tratment of anorexia, as other treatments are failed for it.

Hence, the correct option is a.

hello there the answer is d

a fossil fuel is a fuel formed by natural processes, such as anaerobic decomposition of buried dead organisms, containing energy originating in ancient photosynthesis.[1] the age of the organisms and their resulting fossil fuels is typically millions of years, and sometimes exceeds 650 million years.[2] fossil fuels contain high percentages of carbon and include petroleum, coal, and natural gas.[3] other commonly used derivatives include kerosene and propane. fossil fuels range from volatile materials with low carbon to hydrogen ratios like methane, to liquids like petroleum, to nonvolatile materials composed of almost pure carbon, like anthracite coal. methane can be found in hydrocarbon fields either alone, associated with oil, or in the form of methane clathrates.

the theory that fossil fuels formed from the fossilized remains of dead plants by exposure to heat and pressure in the earth's crust over millions of years was first introduced by andreas libavius "in his 1597 alchemia [alchymia]" and later by mikhail lomonosov "as early as 1757 and certainly by 1763".[4] the first use of the term "fossil fuel" was by the german chemist caspar neumann, in english translation in 1759.[5]

in 2017 the world's primary energy sources consisted of petroleum (34%), coal (28%), natural gas (23%), amounting to an 85% share for fossil fuels in primary energy consumption in the world.[6] non-fossil sources in 2006 included nuclear (8.5%), hydroelectric (6.3%), and others (geothermal, solar, tidal, wind, wood, waste) amounting to 0.9%.[7] world energy consumption was growing at about 2.3% per year. in 2015 about 18% of worldwide consumption was from renewable sources.[8]