The Mars Desert Research Station uses greywater recycling, and might be used on trips to Mars to reduce water consumption and increase oxygen generation.

As a result of the effect of the barrier, there has been a marked increase in the number of people trying to illegally cross the Sonoran Desert and crossing over the Baboquivari Mountain in Arizona.

The Professional Darts Corporation has continued to increase its annual UK televised tournaments in recent years: The World Championship, The Premier League, Las Vegas Desert Classic, UK Open, World Grand Prix and World Matchplay are all covered live via Sky Sports.

Epidemiological studies of wild desert tortoises in the western Mojave Desert from 1992 to 1995 shows a 37 % increase in M. agassizii ( Brown et al.

The proposal has also generated some concern in Egypt, which believes that the canal will increase seismic activity in the region ; provide Israel with water for cooling its nuclear reactor near Dimona ; turn the Negev Desert into a settlement area and increase well salinity ..

Botanists also study how plants produce food we can eat and how to increase yields and therefore their work is important in mankind's ability to feed the world and provide food security for future generations, for example, through plant breeding.

Furthermore, modern breeding management and technologies can increase the rate of conception, a healthy pregnancy, and successful foaling.

Research in biosalinity includes studies of the biochemical and physiological mechanisms of salt tolerance in plants, breeding and selection for salt tolerance ( halotolerance ), discovery of periods in a crop plant's life cycle when it may be less sensitive to salt, use of saline irrigation water to increase desirable traits ( such as sugar concentration in a fruit ) or to control the ripening process, study of the interaction between salinity and soil properties, and development of naturally salt-tolerant plant species ( halophytes ) into useful agricultural crops.

It is thought that male and female rats have similar sized home ranges during the winter, but male rats increase the size of their home range during the breeding season.

Some mammals which have seasonal breeding cycles keep their testes internal until the breeding season at which point their testes descend and increase in size and become external.

To breed neon tetras, hobbyists place a pair of the species in a breeding tank without any light, and gradually increase the lighting until spawning occurs.

On September 6, 2007, RSPB Scotland and the Scottish Natural Heritage ( SNH ) stated that it was surprised by an increase in the last 12 years in the breeding figures in the UK for the Red-throated Diver and the rarer Black-throated Diver of 16 % and 34 % respectively due to the anchoring of 58 man-made rafts in lochs.

In recent decades, the number of birds remaining on the breeding grounds all year has been noted to increase e. g. in Fennoscandia, whereas for example borealis seems to be as rare a winter visitor in northern Ohio as it was a century ago.

The breeding population of the Lesser Snow Goose exceeds 5 million birds, an increase of more than 300 percent since the mid-1970s.

Coho salmon ( Oncorhynchus kisutch ) increase in weight was found to be more than 60 % after four generations of selective breeding ( Hershberger et al.

A selective breeding program for Litopenaeus stylirostris saw an 18 % increase in growth after the fourth generation and 21 % growth after the fifth generation ( Goyard et al.

With stallions, double registration may also increase their breeding value by widening the set of interested mare owners.

Movements of black-footed ferrets have been shown to increase during the breeding season ; however, snow-tracking from December to March over a 4-year period near Meeteetse, Wyoming revealed that factors other than breeding were responsible for movement distances.

Within western Europe, there has been a marked southward spread from Scandinavia in the breeding range since about 1850, colonising Scotland in 1871, England in 1941, and also a strong increase in the population in the Alps.

However, due to the extensive breeding with Siamese cats that had been used to increase the population, the original type was overwhelmed.

The population increase has been rapid subsequently, with over 750 pairs breeding in nearly 70 colonies in 2008, and a post-breeding total of 4, 540 birds in September 2008.

These helpers are important in breeding success, so much so that White-winged Choughs have been reported to kidnap nearly fledged chicks from other groups in order to increase the size of the kidnapping group.

Results from this study showed that an increase of hydrocarbon exploration resulted in a decreased success rate for breeding.

In 1998 the UK Government agreed to a biodiversity action plan ( BAP ) for the Common Scoter to increase the breeding population to 100 pairs by 2008.

It has declined in some areas, particularly at the western end of its breeding range in Denmark ( where it is now extinct as a breeding bird ) and Germany, due to habitat loss from agricultural intensification ; conversely, some increase has occurred in Ukraine and southern Finland.

The benefits of allofeeding may include " lightening the load " for the breeding pair, which may possibly increase longevity, reducing the probability of starvation of nestlings, and detecting and mobbing predators near the nest.

The species has declined in much of North America but appears to be doing well in Washington, with a small ( not significant ) increase on the state's breeding bird survey since 1966.

The great increase in the amount of archaeological activity, and therefore information, in the years immediately preceeding and following the Second World War has brought to light data which has changed the complection of the Saxon Shore dispute.

At the present time we do not know by what biochemical mechanism TSH acts on the thyroid, but for bio-assay of the hormone there are a number of properties by which its activity may be estimated, including release of iodine from the thyroid, increase in thyroid weight, increase in mean height of the follicular cells and increase in the thyroidal uptake of Af.

Another extrinsic pathway for initiation identified in several toxin studies is an increase in calcium concentration within a cell caused by drug activity, which also can cause apoptosis via a calcium binding protease calpain.

This is a useful technique for researchers in neuroscience because it allows them to quickly increase the intracellular cAMP levels in particular neurons, and to study the effect of that increase in neural activity on the behavior of the organism.

Regulation is the complex orchestration of events starting with an extracellular signal such as a hormone and leading to an increase or decrease in the activity of one or more proteins.

More oxygenated blood in a particular region is assumed to correlate with an increase in neural activity in that part of the brain.

Substances that increase the activity of catalysts are called promoters, and substances that deactivate catalysts are called catalytic poisons.

Promoters are substances that increase the catalytic activity, even though they are not catalysts by themselves.

Increases in greenhouse gases, such as by volcanic activity, can increase the global temperature and produce an interglacial.

Substances that increase the activity of catalysts are called promoters, and substances that deactivate catalysts are called catalytic poisons.

Service personnel on the western arm of the island reported only a minor increase in wave activity.

Inhibitors are molecules that decrease enzyme activity ; activators are molecules that increase activity.

As human population and industrial activity continue to increase, environmentalists often find themselves in serious conflict with those who believe that human and industrial activities should not be overly regulated or restricted, such as some libertarians.

In the background, however, Sweden was concerned about the possibility of expansion of Bolshevist influence in northern Europe, and an increase of radical leftist political activity and social unrest in Sweden.

The accelerating ice flow has been accompanied by a dramatic increase in seismic activity.

Moreover, with the widespread decentralization of economic activity that is being proposed by the government, and with the corresponding development of the interior regions of the country, the demand for water transport might, perhaps paradoxically, increase rather than diminish.

This increase in radiative forcing from human activity is attributable mainly to increased atmospheric carbon dioxide levels.

Circumstantial evidence indicates whaling could have contributed to this population's decline, as the increase in whaling activity in the 17th and 18th centuries coincided with the population's disappearance.

They have a higher basal metabolic rate, and also a greater capacity to increase their metabolic rate when engaged in strenuous activity.

In response to the court decision, in 2007 the SEC adopted Rule 206 ( 4 )- 8, which unlike the earlier challenged rule, " does not impose additional filing, reporting or disclosure obligations " but does potentially increase " the risk of enforcement action " for negligent or fraudulent activity.

Another function of interferons is to upregulate major histocompatibility complex molecules, MHC I and MHC II, and increase immunoproteasome activity.