When the toads are threatened, their glands secrete a milky-white fluid known as bufotoxin.

When lying down, the cerebrospinal fluid as estimated by lumbar puncture is similar to the intracranial pressure.

When renin levels are elevated, the concentrations of angiotensin II and aldosterone increase, leading to increased sodium chloride reabsorption, expansion of the extracellular fluid compartment, and an increase in blood pressure.

When a fluid is flowing through a closed channel such as a pipe or between two flat plates, either of two types of flow may occur depending on the velocity of the fluid: laminar flow or turbulent flow.

When measuring liquid pressure, a loop filled with gas or a light fluid can isolate the liquids to prevent them from mixing but this can be unnecessary, for example when mercury is used as the manometer fluid to measure differential pressure of a fluid such as water.

When fluid flows are not in equilibrium, local pressures may be higher or lower than the average pressure in a medium.

When meconium staining of the amniotic fluid is present and the baby is born depressed, it is recommended by the guidelines that an individual trained in neonatal intubation use a laryngoscope and endotracheal tube to suction meconium from below the vocal cords.

When diluted in amniotic fluid, it may appear in various shades of green, brown, or yellow.

When fluid dissects into the surrounding white matter forming a cystic cavity or syrinx, the term syringomyelia is applied.

When Cole gives it to Kyra's father, the videotape shows Kyra's stepmother putting floor cleaner fluid in Kyra's food while she cared for Kyra during her illness.

When a designer, engineer, or user decides to use a valve for an application, he / she should ensure the rated maximum temperature and pressure are never exceeded and that the wetted materials are compatible with the fluid the valve interior is exposed to.

When this is not available ( e. g. because a court order may be needed and not obtainable ) other methods may need to be used to collect a sample of blood, saliva, semen, or other appropriate fluid or tissue from personal items ( e. g. toothbrush, razor, etc.

When the working fluid is a gas that is compressed and expanded but doesn't change phase, the refrigeration cycle is called a gas cycle.

When the bolus enters the mouth, the fluid is squeezed out with the tongue and reswallowed.

When a voltage is applied, the piezoelectric material changes shape, which generates a pressure pulse in the fluid forcing a droplet of ink from the nozzle.

When the Rayleigh number is below the critical value for that fluid, heat transfer is primarily in the form of conduction ; when it exceeds the critical value, heat transfer is primarily in the form of convection.

When the brakes are applied, brake fluid is forced under pressure from the master cylinder into the wheel cylinder, which in turn pushes the brake shoes into contact with the machined surface on the inside of the drum.

When one spins and stops suddenly, fluid in the inner ear continues to rotate causing a sense of continued spinning while one's visual system no longer detects motion.

When " playing possum ", the animal's lips are drawn back, the teeth are bared, saliva foams around the mouth, the eyes close or half-close, and a foul-smelling fluid is secreted from the anal glands.

When an object ( or disturbance ) moves faster than the information about it can be propagated into the surrounding fluid, fluid near the disturbance cannot react or " get out of the way " before the disturbance arrives.

When the Court was a part of the curia regis, the Officers were fluid ; they could include Doctors of Civil Law, members of the curia and " those who ought to be summoned ".

When the freezer gets too warm, the thermostat starts the refrigeration process and a fan circulates the air around the freezer.

When Joe identified himself, he nodded, unsmiling, and ushered him into a sedate living room.

When I asked, `` Why didn't you go into the living room to see how Mrs. Buck was ''??

When they evolved from lunged fish, amphibians had to make certain adaptations for living on land.

When he was staying in Nicaea, his cousins, who had been living there, made an unsuccessful attempt to take his life.

When dictator Franco died in 1975, his successor Juan Carlos I played his part as the living symbol of the transition of Spain to a democratic constitutional monarchy.

When he turned twenty-one, Danish artist Fritz Melbye, then living on St. Thomas, inspired Pissarro to take on painting as a full-time profession, becoming his teacher and friend.

When he moved to Salisbury, Allen met Thomas Young, a doctor living and practicing just across the provincial boundary in New York.

When the brook dries up, God sends him to a widow living in the town of Zarephatho in Phoenicia.

When they married his mother withdrew his allowance and he was forced to work for a living.

When they occurred, minimum wage adjustments generally did not keep up with cost of living increases.

When his mother returned to work as a lady's maid ( at Uppark, a country house in Sussex ), one of the conditions of work was that she would not be permitted to have living space for her husband and children.

When the living and working conditions of the laborers became known public opposition to the scheme grew and questions were asked in the British Parliament.

When released in 1803, from a brief time in prison, Rapp told his followers to pool their assets and follow him on a journey for safety to the " land of Israel " in the United States, and soon over 800 people were living with him there.

When the Germans threatened to overrun Paris in 1940, where she was then living, he arranged her escape to England.

When, in 1887, the French and Italian Governments agreed upon moving the mortal remains of Rossini into the Basilica di Santa Croce, in Florence, Alboni, then a sixty-one-year-old lady living in seclusion, wrote to the Italian Foreign Minister, Di Robilant, proposing that the Petite Messe Solennelle, " the last musical composition by Rossini ", be performed in Santa Croce the day of the funeral, and " demanding the honour, as an Italian and a pupil of the immortal Maestro ," of singing it herself in her " dear and beloved homeland ".

When he was resting from his extended journeys into Central Asia, he spent most of his time living in a tent in the spectacularly beautiful alpine meadow called Gulmarg ( or ' Meadow of Roses ').

When he was born, the family was living at the rectory at Finnøy.

When the Meldrews move house, they discover he is their neighbour, living on the other side of the Meldrews from the Trenches.

When they were offered $ 400 to play at a dance, Orbison realized that he could make a living in music.

When Paris succeeded in getting her to open up, she admitted that she's afraid her husband will find living with two Klingons too difficult and will leave her the way her father did.

When one is performing acts that harm the land or other living things, prayers and rituals are performed to placate the Kami of the area.

When Solomon suggested they should divide the living child in two with a sword, one woman said she would rather give up the child than see it killed.

When Ben finds a television, the emergency broadcaster reports that the recently deceased have become reanimated and are consuming the flesh of the living.

When Gestapo agents were at his door he turned to his wife, who was crying, and said " Don ´ t cry, we were living in fear, but from now on we will live in hope ".

When Mercadante returned to Italy after living in Spain and Portugal, Donizetti's music reigned supreme in Naples, an ascendancy which did not end until censorship problems with the latter's Poliuto caused a final break.