These oils develop hard, smooth films when they dry and form resinlike substances.

These chemicals are styrene, acetophenone and brominated substances.

These other types of substances, such as ionic compounds and network solids, are organized in such a way as to lack the existence of identifiable molecules per se.

These are semisynthetic derivatives of epipodophyllotoxins, substances naturally occurring in the root of American Mayapple ( Podophyllum peltatum ).

These were lists, prepared by collating observations on the actions of substances one upon another, showing the varying degrees of affinity exhibited by analogous bodies for different reagents, and they retained their vogue for the rest of the century, until displaced by the profounder conceptions introduced by Claude Berthollet.

These laws regulated public drinking water systems, toxic substances, pesticides, and ocean dumping ; and protected wildlife, wilderness, and wild and scenic rivers.

These successes were followed by the enactment of a whole series of laws regulating waste ( Resource Conservation and Recovery Act ), toxic substances ( Toxic Substances Control Act ), pesticides ( FIFRA: Federal Insecticide, Fungicide, and Rodenticide Act ), clean-up of polluted sites ( Superfund ), protection of endangered species ( Endangered Species Act ), and more.

These range from a symbolic pricking or piercing of the clitoris or labia, to cauterization of the clitoris, cutting into the vagina to widen it ( gishiri cutting ), and introducing corrosive substances to tighten it.

These plant-derived substances are more similar to pectin and other gelling plant carbohydrates than to gelatin proteins ; their physical properties are slightly different, creating different constraints for the preparation and storage conditions.

These substances, major constituents of bauxite, are known as laterites and are formed by leeching from rocks of most of the ions other than aluminium and iron and subsequent hydrolysis of the remaining aluminium and iron.

These combinations are considered C-III substances, prescriptions for which are generally valid for 6 months, including any refills.

These finds, some of which have been preserved practically intact due to the special conditions of the peat bogs, have included wooden arrows with microliths attached to the tip by resinous substances and cords.

These substances are generally more recent discoveries that have not yet been recognized as vitamins or as required.

These volatile substances impart their properties temporarily — once the solvent has evaporated, the remaining paint is fixed to the surface.

These generally involve pre-coating the chamber with any of a variety of substances, or by gently smoking a new pipe to build up a cake ( a mixture of ash, unburned tobacco, oils, sugars, and other residue ) on the walls.

These rules include such things as regulation ski sizes, sidecuts, boot heights, binding risers and other regulations such as limitations to chemical substances found in winning racers as well as many other things which all ensure one particular skier has no advantage over another.

These substances are naturally occurring, but nonetheless psychoactive, and are compounds identified through the work of ethnobotanists and ethnomycologists ( and others who study the native use of naturally occurring psychoactive drugs ).

These and various other substances that have an effect on the brain are still used as remedies in many cultures.

These temperatures cannot be reached with conventional black powder fuses, nitrocellulose rods, detonators, pyrotechnic initiators, or other common igniting substances.

These substances would become neutralized in the cooking process, but using the leftover ( un-cooked ) marinade later as a sauce holds the risk of reapplication.

These hybridized glasses have a very low level of optical dispersion ; only two compiled lenses made of these substances can yield a high level of correction.

These substances are cathartic and laxative, which explains the sporadic use of rhubarb as a dieting aid.

These later substances are hormones, and so the pancreas is also an endocrine gland.

These microvessels, measuring 5-10 μm in diameter, connect arterioles and venules, and enable the exchange of water, oxygen, carbon dioxide, and many other nutrients and waste chemical substances between blood and surrounding tissues.

These seem about the only two ways in which the `` unhappy incident '' can now be closed.

These engines can be removed from a boat with relative ease, wherein lies their greatest advantage.

These can also move a short distance but at right angles to the tappets.

These are beginnings, but correctly learned they prepare for satisfying and exciting stunts that can be performed by a strong, flexible body ( we are not talking of eccentric extremes ).

These frequencies are amplified and detected by the FM receiver after each burst of transmitted energy and, after the `` pill '' has been calibrated, precise internal pressure indications can be obtained.

These factors can make the difference between waste and efficiency in any benefit program.

These experiments can be considered exploratory only.

These societies can expect to face difficult times.

These records, when systematically maintained, provide much information about the children, which the teacher can use in guidance, instruction, grouping, and reporting to parents.

These can be referred to as operational intelligence and environmental intelligence.

These theoretical relationships are more clearly illustrated in Fig. 7 and their sum can be seen to correlate in form with practical measurements made with the Hesiometer as illustrated in the first portion of Fig. 5 for the cutting mechanism.

These dynamic relationships, between what can be observed on the ground, as opposed to what can be observed by compiling many local observations remain fundamental in any kind of anthropology, whether cultural, biological, linguistic or archaeological.

These are not used in amoeboid movement, but are stiff skeletons on which organelles are supported or can move on.

These can range from simple spelling changes and word forms to switching the entire writing system itself, as when Turkey switched from the Arabic alphabet to a Turkish alphabet of Latin origin.

These finishes protect the adobe wall from water damage, but need to be reapplied periodically, or the walls can be finished with other nontraditional plasters providing longer protection.

These deficits can vary depending on which cerebellar structures have been damaged, and whether the lesion is bilateral or unilateral.

These include all quadratic surds, all rational numbers, and all numbers that can be formed from these using the basic arithmetic operations and the extraction of square roots.

These frequencies can be used to study geological phenomena such as earthquakes.

These are naturally in a ground state but can be excited

These constructions can convey shape, size, motion, location, movement, stative-descriptive, and / or handling information.

These particles continue to decay, emitting alpha particles which can damage cells in the lung tissue.

These conditions can be used to handle unusual situations.

These antigens can sometimes be presented by tumor cells and never by the normal ones.

These can be as simple as a searchlight for a police helicopter or as complicated as the tactical system for an airborne early warning platform.