Since conference and of the Food and Agriculture Organization's publication World Festival of Trees, and a resolution of the United Nations in 1954: " The Conference, recognising the need of arousing mass consciousness of the aesthetic, physical and economic value of trees, recommends a World Festival of Trees to be celebrated annually in each member country on a date suited to local conditions "; it has been adopted by the Netherlands.

Since commercial signage usually has limited physical space, signage is normally in French alone.

Since the dawn of Newtonian science with its vision of simple mechanical principles governing the entire universe, some philosophers have been tempted by the idea that consciousness could be explained in purely physical terms.

Since the advent of the Internet, the concept of community has less geographical limitation, as people can now gather virtually in an online community and share common interests regardless of physical location.

Since the physical behavior of singularities is unknown, if singularities can be observed from the rest of spacetime, causality may break down, and physics may lose its predictive power.

Since capital goods and labor are highly heterogeneous ( i. e. they have different characteristics that pertain to physical productivity ), economic calculation requires a common basis for comparison for all forms of capital and labour.

Since these decisions Ethiopia has refused to permit the physical demarcation of the border while Eritrea insists the border must be demarcated as defined by the Commission.

Since the early twentieth century, quantum theory has proved to be successful in describing accurately the physical reality of the mesoscopic and microscopic world, in multiple reproducible physics experiments.

Since the live operators are cutting from one live feed to another, the physical action of the shots matches very closely.

Since many insurgents rely on the population for recruits, food, shelter, financing, and other materials, the counter-insurgent force must focus its efforts on providing physical and economic security for that population and defending it against insurgent attacks and propaganda.

Since the 1950s, hydrology has been approached with a more theoretical basis than in the past, facilitated by advances in the physical understanding of hydrological processes and by the advent of computers and especially geographic information systems ( GIS ).

Since the actual physical surface of the Earth is too complex for mathematical analysis two levels of abstraction are employed in the definition of these coordinates.

Since the amount of physical capital affects MRP, and since financial capital flows can affect the amount of physical capital available, MRP and thus wages can be affected by financial capital flows within and between countries, and the degree of capital mobility within and between countries.

Since the cultural revolution of the 17th century in England, which spread to France and the rest of Europe, society has been considered subject to natural laws akin to the physical world.

Since the early 2000s calling card service providers have introduced calling accounts not associated with a physical card.

Brill criticised physical treatments for homosexuality such as bladder washing, rectal massage, and castration, along with hypnosis, but referred approvingly to Freud and Sadger's use of psychoanalysis, calling its results “ very gratifying .“ Since Brill understood cure of homosexuality to mean restoring heterosexual potency, he claimed that he had cured his patients in several cases, even though many remained homosexual.

Since the Laplace operator appears in the heat equation, one physical interpretation of this problem is as follows: fix the temperature on the boundary of the domain according to the given specification of the boundary condition.

Since 1988, the International Olympic Committee have chosen to validate Disabled Sports ( physical disabilities ) and incorporate it as a part of the Games: the staging of the Paralympic Games immediately follows the Olympic Games.

Since lugers have very little protection other than a visor and helmet, they must be able to endure the physical pounding administered by the track when mistakes are made.

Since the handsets were all supplied by the telephone company, most had the same shape, simplifying the physical interface.

Since E and P are defined separately, this equation can be used to define D. The physical interpretation of D is not as clear as E ( effectively the field applied to the material ) or P ( induced field due to the dipoles in the material ), but still serves as a convenient mathematical simplification, since Maxwell's equations can be simplified in terms of free charges and currents.

Since nimbus was classified separately from the cumulus, stratus, and cirrus categories during that time, it was usual to refer to it as a nimbiform cloud that comprised its own physical category.

Since the boundary is not a well-defined physical entity, there are various non-equivalent definitions of atomic radius.

Since Fire Temple was at least partially built to conform to the dimensions of the cliff alcove in which it was built, it is neither round in form nor truly subterranean like other structures defined as kivas

Since they are polymers, biopolymers contain monomeric units that are covalently bonded to form larger structures.

Since database structures are complex, in most cases, and especially for not-very-simple queries, the needed data for a query can be collected from a database by accessing it in different ways, through different data-structures, and in different orders.

Since database structures are complex, in most cases, and especially for not-very-simple queries, the needed data for a query can be collected from a database by accessing it in different ways, through different data-structures, and in different orders.

Since then, other variant designs involving building an artificial structure or series of structures to encompass a star have been proposed in exploratory engineering or described in science fiction under the name " Dyson sphere.

Since the late 19th century, differential geometry has grown into a field concerned more generally with the geometric structures on differentiable manifolds.

Since ortho derivatives of benzene were never actually found in more than one isomeric form, Kekulé modified his proposal in 1872 and suggested that the benzene molecule oscillates between two equivalent structures, in such a way that the single and double bonds continually interchange positions .< ref >

Since lyotropic liquid crystals rely on a subtle balance of intermolecular interactions, it is more difficult to analyze their structures and properties than those of thermotropic liquid crystals.

Since these concepts are formally defined in the article on structures, the present article can content itself with an informal introduction which consists in examples of how these terms are used.

Since RNA is charged, metal ions such as Mg < sup > 2 +</ sup > are needed to stabilise many secondary and tertiary structures.

Since 1959, most ideas for space elevators have focused on purely tensile structures, with the weight of the system held up from above.

Since that success, over 73761 X-ray crystal structures of proteins, nucleic acids and other biological molecules have been determined.

Since the establishment of America ’ s first historic site at Washington ’ s Revolutionary headquarters at Hasbrouck House in New York State, Americans have found a penchant for preserving similar historical structures.

Since then, most of the Hanford reactors have been entombed (" cocooned ") to allow the radioactive materials to decay, and the surrounding structures have been removed and buried.

Since these weapons delivered lighter munitions ( thus delivering less energy on impact ) it is a widely held opinion that they were used more as an anti-personnel role, or to destroy lighter structures.

Since the administrative reforms of 1996, the régions of Senegal, which until then were merely local administrative structures of the central state, have been turned into full-fledged political units, with democratically elected regional councils, and regional presidents.

Since fungi are often classified according to their spore-producing structures, these spores are often characteristic of a particular taxon of the fungi.

Since its formation, the group had been preparing their first multimedia project " Rdeči revirji " (" Red District "), aiming to provoke the current political structures in Trbovje.

Since the 1960s, artist William Christenberry, born in Tuscaloosa, has been photographing various structures in Hale County as part of his multi-media artistic investigations.

Since the mid 20th century chemical fluorescent stains, such as DAPI which binds to DNA, have been used to label specific structures within the cell.

Since the mid-1970s, the building has housed the Rochester Community Schools Board of Education offices and occasional related events, and is certainly one of the largest and noteworthy structures in the city.

Since then several million dollars have been spent rehabilitating and restoring the castle and surrounding structures.

Since the late 19th century, means of reaching tall structures have been devised.

Since 2004 these structures are protected as Scheduled Monuments.