The biological and physical properties of infectious particles have been studied intensively during the past fifteen years.

Chemical constitution and physical properties of pituitary tsh

The most active preparations obtained by these two groups of investigators appear to be similar in potency, composition and physical properties.

Crystallographic, physical, optical, and chemical properties.

The aim is to collect a very broad range of physical, chemical, morphological, and structural data for crystals on an encyclopedic scale and to seek all possible useful and revealing correlations of properties with internal structure.

Several companies also saw possibilities in using the technique for extruding or molding vinyl products with a slight cellular core that would reduce costs yet would not affect physical properties of the end product to any great extent.

Besides iodine and tellurium, later several other pairs of elements ( such as argon and potassium, cobalt and nickel ) were known to have nearly identical or reversed atomic weights, leaving their placement in the periodic table by chemical properties to be in violation of known physical properties.

The close similarity of physical and chemical properties of actinium and lanthanum makes separation of actinium from the ore impractical.

Most of the physical properties of astatine have been estimated ( by interpolation or extrapolation ), using various theoretically-grounded or empirically-derived methods.

The physical properties, such as density, reactivity, Young's modulus, and electrical and thermal conductivity, of an alloy may not differ greatly from those of its elements, but engineering properties such as tensile strength and shear strength may be substantially different from those of the constituent materials.

It can be defined as a difference, when measured along different axes, in a material's physical or mechanical properties ( absorbance, refractive index, conductivity, tensile strength, etc.

Its chemical and physical properties are so similar to that of natural amethyst that it can not be differentiated with absolute certainty without advanced gemnological testing ( which is often cost-prohibitive ).

* Modified Baltic amber – gemstone subjected only to thermal or high-pressure treatment, which changed its physical properties, including the degree of transparency and color, or shaped under similar conditions out of one nugget, previously cut to the required size.

Allotropes are different structural forms of the same element and can exhibit quite different physical properties and chemical behaviours.

These two isomers of butene are slightly different in their chemical and physical properties.

The physical properties of alkenes are comparable with those of alkanes.

* A basic physical understanding of the climate system: greenhouse gas concentrations have increased and their warming properties are well-established.

Determination of the exact resolution of the instrument is of limited use, as the resolution of the device is set by the physical properties of the material under analysis.

In the periodic table, it is located to the right of the actinide curium, to the left of the actinide californium and below the lanthanide terbium with which it shares many similarities in physical and chemical properties.

Copper and its alloys have a huge variety of uses that reflect their versatile physical, mechanical, and chemical properties.

The no-hair theorem states that, once it achieves a stable condition after formation, a black hole has only three independent physical properties: mass, charge, and angular momentum.

The content of membranes defines their physical and biological properties.

The physical properties of carbon vary widely with the allotropic form.

Gathering honey from wild bee colonies is usually done by subduing the bees with smoke and breaking open the tree or rocks where the colony is located, often resulting in the physical destruction of the nest location.

The Wichí were affected by the recession that lasted from 1999 to 2002, but their relative economic self-sufficiency, their physical isolation and the lack of recognition on the part of the authorities largely diminished the impact of the crisis, which was circumscribed on inflation in the price of certain goods they cannot produce ( such as sugar and red meat, replaceable by wild honey and fish ) and on problems with the supply of medicines and healthcare.

Other physical characteristics vary according to habitat.

By contrast, in a non-inertial reference frame the laws of physics vary depending on the acceleration of that frame with respect to an inertial frame, and the usual physical forces must be supplemented by fictitious forces.

The physical state and comprehensiveness of China's transport infrastructure tend to vary widely by geography.

Definitions and licensing requirements in the United States vary among jurisdictions, as each state has enacted its own physical therapy practice act defining the profession within its jurisdiction, but the American Physical Therapy Association ( APTA ) has also drafted a model definition in order to limit this variation, and the APTA is also responsible for accrediting physical therapy education curricula throughout the United States of America.

Educational criteria for physical therapy providers vary from state to state and from country to country, and among various levels of professional responsibility.

Some jurisdictions require physical therapy technicians or aides to be certified, and education and certification requirements vary among jurisdictions.

Most of the physical properties of superconductors vary from material to material, such as the heat capacity and the critical temperature, critical field, and critical current density at which superconductivity is destroyed.

Pipe tobacco can be purchased in several forms, which vary both in flavour ( leading to many blends and opportunities for smokers to blend their own tobaccos ) and in the physical shape and size to which the tobacco has been reduced.

Statics is the branch of mechanics that is concerned with the analysis of loads ( force and torque, or " moment ") on physical systems in static equilibrium, that is, in a state where the relative positions of subsystems do not vary over time, or where components and structures are at a constant velocity.

Scales usually vary in size, the stouter, larger scales cover parts that are often exposed to physical stress ( usually the feet, tail and head ), while scales are small around the joints for flexibility.

A crystal oscillator depends for its frequency on its physical dimensions, which vary with fabrication and environmental conditions.

The actual physical process leading to this SiO < sub > 2 </ sub > depletion may vary in a given metamorphic environment.

Almost everyone with Huntington's disease eventually exhibits similar physical symptoms, but the onset, progression and extent of cognitive and psychiatric symptoms vary significantly between individuals.

Other physical and chemical properties vary widely across the class.

Therefore the physical and optical properties of synthesized CZ vary, all values being ranges.

The physical exam will vary depending on severity and presence of internal bleeding.

Although practices will vary, most of the Orthodox use Unction not only for physical ailments, but for spiritual ailments as well, and the faithful may request Unction any number of times at will.

Bowser's physical size tends to vary from game to game.

The transition is usually accompanied by obvious physical changes, which can vary from a change in clothing to tattoos and scarification.

The psychosocial limitations of society may be more disabling than the physical symptoms, especially in childhood and adolescence, but people with dwarfism vary greatly in the degree to which social participation and emotional health are affected.

An analog recording is one where a property or characteristic of a physical recording medium is made to vary in a manner analogous to the variations in air pressure of the original sound.

Predictions vary, including race war or a Jewish-backed United Nations takeover of the USA and endorse physical struggle against what they see as the forces of evil.