A reduction in the number of tadpoles may lead to an overgrowth of algae, resulting in depletion of oxygen in the water when the algae later die and decompose.

Such repair work, a reduction in height, and unusually high snowmelt and heavy spring rains combined to cause the dam to give way on May 31, 1889 resulting in twenty million tons of water to sweep down the valley causing the Johnstown Flood.

As the height of water increases, movement toward the periphery becomes no longer advantageous, because the reduction in potential energy from working with the centrifugal force is balanced against the increase in energy working against gravity.

When in contact with one of the electrodes in a fuel cell, this platinum increases the rate of oxygen reduction to water, either to hydroxide or hydrogen peroxide.

Studies in the brine shrimp have examined how water affects cell functions ; these saw that a 20 % reduction in the amount of water in a cell inhibits metabolism, with metabolism decreasing progressively as the cell dries out and all metabolic activity halting when the water level reaches 70 % below normal.

However, reduction in alkaline liquor produces the water soluble alkali metal salt of the dye, which, in this leuco form, has an affinity for the textile fibre.

The reduction in annual silt deposits has contributed to rising water tables and increasing soil salinity in the Delta, the erosion of the river's banks in Upper Egypt, and the erosion of the alluvial fan along the shore of the Mediterranean Sea.

Electrochemical reactions in water are better understood by balancing redox reactions using the ion-electron method where H < sup >+</ sup >, OH < sup >–</ sup > ion, H < sub > 2 </ sub > O and electrons ( to compensate the oxidation changes ) are added to cell's half-reactions for oxidation and reduction.

The presence of water in a solution of sodium chloride must be examined in respect to its reduction and oxidation in both electrodes.

Thus, if the Cl < sup >–</ sup > ion is favored for reduction, then the water reaction is favored for oxidation producing gaseous oxygen, however experiments show gaseous chlorine is produced and not oxygen.

* Environmental health movement dating at least to Progressive Era ( 1890s-1920s ) urban reforms including clean water supply, more efficient removal of raw sewage and reduction in crowded and unsanitary living conditions.

When El Niño conditions last for many months, extensive ocean warming and the reduction in Easterly Trade winds limits upwelling of cold nutrient-rich deep water and its economic impact to local fishing for an international market can be serious.

Primarily for safety reasons, size reduction and mixing is done while the ingredients are damp, usually with water.

* 1975 – A fire at the Browns Ferry Nuclear Power Plant in Decatur, Alabama causes a dangerous reduction in cooling water levels.

Recommended intake volumes in the elderly are the same as for adults as despite lower energy consumption, the water requirement of this group is increased due to a reduction in renal concentrating capacity.

For example, ketchup can have its viscosity reduced by shaking ( or other forms of mechanical agitation, where the relative movement of different layers in the material actually causes the reduction in viscosity ) but water cannot.

The support of the water, and the reduction in impact, makes swimming accessible for people who are unable to undertake activities such as running.

" With the exception of safe water, no other modality, not even antibiotics, has had such a major effect on mortality reduction and population growth.

The mineral and organic components are considered a constant while the percentages of water and air are the only variable parameters where the increase in one is balanced by the reduction in the other.

* source reduction ( e. g., removing stagnant water )

The ranges come about because there are two ways to compute the influence of water vapor and clouds: the lower bounds are the reduction in the greenhouse effect if water vapor and clouds are removed from the atmosphere leaving all other greenhouse gases unchanged, while the upper bounds are the greenhouse effect introduced if water vapor and clouds are added to an atmosphere with no other greenhouse gases.

Note: Bandwidth compression implies a reduction in normal bandwidth of an information-carrying signal without reducing the information content of the signal.

A-weighted noise measurements were found to give misleading results because they did not give sufficient prominence to the 6 kHz region where the noise reduction was having greatest effect, and sometimes one piece of equipment would even measure worse than another and yet sound better, because of differing spectral content.

For purposes of comparison, CDs are encoded at 1411. 2 kbit / s, and lossless encoders can encode most CDs below 1000 kbit / s, with significant bitrate reduction for easier-to-encode content such as voice.

They reduce their tissue density through high fat content, reduction of skeletal weight – accomplished through reductions of size, thickness, and mineral content – and water accumulation makes them slower and less agile than surface fish.

Research into the effects of warnings such as the one left on Grokster ’ s website has shown that while these warnings can result in a substantial reduction in online file sharing of individuals, the overall availability of downloadable content did not diminish.

Oxygen sensors are used to monitor the exhaust oxygen content before and after the catalytic converter and this information is used by the Electronic control unit to adjust the fuel injection so as to prevent the first ( NO < sub > x </ sub > reduction ) catalyst from becoming oxygen-loaded while ensuring the second ( HC and CO oxidization ) catalyst is sufficiently oxygen-saturated.

Possible restrictions include the inability to save an unencrypted digital program to a hard disk or other non-volatile storage, inability to make secondary copies of recorded content ( in order to share or archive ), forceful reduction of quality when recording ( such as reducing high-definition video to the resolution of standard TVs ), and inability to skip over commercials.

The first issue was a significant departure from Cracked previous incarnation, notably in its sharp reduction of comics and illustrated content.

The reduction in budget forced a number of changes ; the substitution of metal for concrete in the construction of the shards, the removal of a planned auditorium, and a change of exhibition content.

In August 2009, the company announced a proposed reduction of Wiley-Blackwell staff in content management operations in the U. K. and Australia by approximately 60, in conjunction with an increase of staff in Asia.

Sweden has a similar seasonal reduction, but the ethanol content in the blend is reduced to E75 during the winter months.

There is a reduction in the strength of the colonic mucosa with age, and that increased contractions in the descending and sigmoid colon secondary to an insufficient fibre content of the diet cause protrusion through this weakened wall.

Juku have received additional attention in recent years as there has been a general perception of a decline of educational standards in Japan ; policy decisions like the abolition of Saturday schooling as well as the reduction of curricular content have been questioned ( see Yutori education ).

This size and color reduction improves the user experience on the target device, and is sometimes the only way for content to be sent between different mobile devices.

Aboulia has been described as a loss of drive, expression, loss of behavior and speech output, slowing and prolonged speech latency, and reduction of spontaneous thought content and initiative.

All led to a significant reduction of the content of flatus-producing sugars, although the most effective was a combination of sprouting and pressure cooking.

The study was done before the importance of taurine in a cat's diet was known and it has been suggested that the group of Pottenger's cats on cooked food simply suffered from taurine deficiency as heating or cooking food causes a reduction in taurine content.

Another study also shows that CL biosynthesis pathway of CL may be selectively impaired and cause 20 % reduction and composition change of CL content.

In 2007, to try to retain appeal to an ever more health conscious market, the manufacturers of Peperami revised the formula to produce a product with a reduction in fat, saturated fat and salt content.

Essentially, tone mapping addresses the problem of strong contrast reduction from the scene values ( radiance ) to the displayable range while preserving the image details and color appearance important to appreciate the original scene content.

When users optimize an OpenOffice. org document with ZipGenius, the gain is from 5 to 10 KB of size reduction ( depending by the content of the OpenOffice. org file ) because ZipGenius will recompress the document with the " Brutal " compression level.

Rocks analyzed for sulfur content are generally organic-rich shales meaning they are likely controlled by biogenic sulfur reduction.

As an alternative to adding more thickener, recipes may call for reduction of the food's water content by lengthy simmering.