A structure is an arrangement and organization of interrelated elements in a material object or system , or the object or system so organized. Material structures include man-made objects such as buildings and machines and natural objects such as biological organisms , minerals and chemicals . Abstract structures include data structures in computer science and musical form . Types of structure include a hierarchy (a cascade of one-to-many relationships), a network featuring many-to-many links , or a lattice featuring connections between components that are neighbors in space.
29-612: The Quirino Grandstand, formerly known as the Independence Grandstand , is a grandstand located at Rizal Park , Manila , Philippines . Contrary to popular belief, the first Independence Grandstand was not originally located on the present site of the Quirino Grandstand but on the area close to Dewey Boulevard right across the Rizal Monument and the flagpole. It was completed in 1946 for
58-415: A hierarchical organization , but hierarchy makes it easier for a listener to understand and remember the music. In analogy to linguistic terminology, motifs and phrases can be combined to make complete musical ideas such as sentences and phrases . A larger form is known as the period . One such form that was widely used between 1600 and 1900 has two phrases, an antecedent and a consequent , with
87-417: A pointer that links them together in a particular order. Out of these any number of other data structures can be created such as stacks , queues , trees and hash tables . In solving a problem, a data structure is generally an integral part of the algorithm . In modern programming style, algorithms and data structures are encapsulated together in an abstract data type . Software architecture
116-468: A roof , but are open on the front. They are often multi-tiered. Grandstands are found at places like Epsom Downs Racecourse and Atlanta Motor Speedway . They may also be found at fairgrounds , circuses , and outdoor arenas used for rodeos . In the United States , smaller stands are called bleachers , and are usually far more basic and typically single-tiered (hence the difference from
145-700: A "grand stand"). Early baseball games were often staged at fairgrounds, and the term "grandstand" came along when standalone baseball parks began to be built. A covered bleacher may be called a " pavilion ", also to distinguish from the main "grandstand". The term grandstanding , from the notion of playing to the people in the grandstands, is often used as a pejorative to describe someone intent on drawing attention to themself. Structure Buildings , aircraft , skeletons , anthills , beaver dams , bridges and salt domes are all examples of load -bearing structures. The results of construction are divided into buildings and non-building structures , and make up
174-461: A Filipino and a Filipina, that stood about 10 meters (33 ft) tall behind the stage and the central gallery. The grandstand was later demolished and a new one was built further away from the old site towards near the breakwater and Manila Bay where it stands to this day. Designed by Federico Ilustre , supervising architect for the Bureau of Public Works , the new Independence Grandstand's design
203-506: A crystal have a structure that involves repetition of a basic unit called a unit cell . The atoms can be modeled as points on a lattice , and one can explore the effect of symmetry operations that include rotations about a point, reflections about a symmetry planes, and translations (movements of all the points by the same amount). Each crystal has a finite group, called the space group , of such operations that map it onto itself; there are 230 possible space groups. By Neumann's law ,
232-404: A half cadence in the middle and a full cadence at the end providing punctuation. On a larger scale are single-movement forms such as the sonata form and the contrapuntal form , and multi-movement forms such as the symphony . A social structure is a pattern of relationships. They are social organizations of individuals in various life situations. Structures are applicable to people in how
261-457: A multilevel hierarchy of structures employing biominerals and proteins , at the bottom of which are collagen fibrils . In biology , one of the properties of life is its highly ordered structure, which can be observed at multiple levels such as in cells , tissues , organs , and organisms . In another context, structure can also observed in macromolecules , particularly proteins and nucleic acids . The function of these molecules
290-461: A redundant structure is needed so that if a component fails it has backups. A high redundancy is an essential part of the design of several systems in the Space Shuttle . As a branch of philosophy, logic is concerned with distinguishing good arguments from poor ones. A chief concern is with the structure of arguments. An argument consists of one or more premises from which a conclusion
319-434: A society is as a system organized by a characteristic pattern of relationships. This is known as the social organization of the group. Sociologists have studied the changing structure of these groups. Structure and agency are two confronted theories about human behaviour. The debate surrounding the influence of structure and agency on human thought is one of the central issues in sociology. In this context, agency refers to
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#1732783914329348-399: A special episode celebrating GMA Network 's ratings victory at the grandstand on October 10, 2004. Eight years later on January 22, 2012, ASAP of the rival TV network ABS-CBN also held a special episode at the grandstand to celebrate Chinese New Year . The grandstand grounds was also the site of the 2010 Manila hostage crisis , which strained relations between Manila and Hong Kong for
377-631: A time. From 2020 to 2022, during the COVID-19 pandemic , the grandstand was made as a make-shift drive-thru COVID-19 testing facility and later as a drive-thru vaccination site by the Manila city government. In 2024, the Bagong Pilipinas launch took place in a venue where 3100 attendees, including members of Congress, government employees, heads of government agencies, and P30K club members, were present. Grandstand A grandstand
406-471: A variety of diagrams called structural formulas . Lewis structures use a dot notation to represent the valence electrons for an atom; these are the electrons that determine the role of the atom in chemical reactions. Bonds between atoms can be represented by lines with one line for each pair of electrons that is shared. In a simplified version of such a diagram, called a skeletal formula , only carbon-carbon bonds and functional groups are shown. Atoms in
435-408: Is inferred . The steps in this inference can be expressed in a formal way and their structure analyzed. Two basic types of inference are deduction and induction . In a valid deduction, the conclusion necessarily follows from the premises, regardless of whether they are true or not. An invalid deduction contains some error in the analysis. An inductive argument claims that if the premises are true,
464-435: Is a normally permanent structure for seating spectators, typically at sports stadiums and including both auto racing and horse racing . The grandstand is in essence like a single section of a stadium , but differs from a stadium in that it does not wrap all or most of the way around. Grandstands may have basic bench seating, but usually have individual chairs like a stadium. Grandstands are also usually covered with
493-434: Is determined by their shape as well as their composition, and their structure has multiple levels. Protein structure has a four-level hierarchy. The primary structure is the sequence of amino acids that make it up. It has a peptide backbone made up of a repeated sequence of a nitrogen and two carbon atoms. The secondary structure consists of repeated patterns determined by hydrogen bonding . The two basic types are
522-489: Is the specific choices made between possible alternatives within a framework. For example, a framework might require a database and the architecture would specify the type and manufacturer of the database. The structure of software is the way in which it is partitioned into interrelated components. A key structural issue is minimizing dependencies between these components. This makes it possible to change one component without requiring changes in others. The purpose of structure
551-420: Is to optimise for (brevity, readability, traceability, isolation and encapsulation, maintainability, extensibility, performance and efficiency), examples being: language choice , code , functions , libraries , builds , system evolution , or diagrams for flow logic and design . Structural elements reflect the requirements of the application: for example, if the system requires a high fault tolerance, then
580-467: The 1949 Quirino inaugural . In addition, the grandstand has also been a site for many civic, religious, sporting, and political gatherings. It served as the main venue of the World Youth Day 1995 closing liturgy, the 2000 Gregorian Millennium New Year Celebrations in the country, the 2005 Southeast Asian Games Opening and Closing Ceremonies, and the concluding mass of Pope Francis 's visit to
609-648: The infrastructure of a human society. Built structures are broadly divided by their varying design approaches and standards, into categories including building structures, architectural structures , civil engineering structures and mechanical structures. The effects of loads on physical structures are determined through structural analysis , which is one of the tasks of structural engineering . The structural elements can be classified as one-dimensional ( ropes , struts , beams , arches ), two-dimensional ( membranes , plates, slab , shells , vaults ), or three-dimensional (solid masses). Three-dimensional elements were
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#1732783914329638-415: The α-helix and the β-pleated sheet . The tertiary structure is a back and forth bending of the polypeptide chain, and the quaternary structure is the way that tertiary units come together and interact. Structural biology is concerned with biomolecular structure of macromolecules. Chemical structure refers to both molecular geometry and electronic structure. The structure can be represented by
667-469: The Philippines in 2015. It is also used yearly for Jesus Is Lord Church Worldwide 's anniversaries since 1989. It is also the main venues of El Shaddai (movement) during its early years and yearly used during their anniversaries from 1988, 1993-1994, 1998-2001, 2003-2009 and 2023. Since 2006, every January 9. The Traslación of the replica of Black Nazarene starts at the grandstand. SOP held
696-440: The ceremony of the declaration of Philippine independence from the United States on July 4, 1946. Juan Arellano designed the original grandstand in the neoclassical design with ornate elements added to the structure such as a triumphal arch at the top with two "wings" that shaded the main galleries, a stage in the form of a ship's bow with a carved figurehead of a maiden representing freedom, and two other figures, representing
725-661: The individual human capacity to act independently and make free choices. Structure here refers to factors such as social class , religion , gender , ethnicity , customs, etc. that seem to limit or influence individual opportunities. In computer science , a data structure is a way of organizing information in a computer so that it can be used efficiently. Data structures are built out of two basic types: An array has an index that can be used for immediate access to any data item (some programming languages require array size to be initialized ). A linked list can be reorganized, grown or shrunk, but its elements must be accessed with
754-996: The main option available to early structures such as Chichen Itza . A one-dimensional element has one dimension much larger than the other two, so the other dimensions can be neglected in calculations; however, the ratio of the smaller dimensions and the composition can determine the flexural and compressive stiffness of the element. Two-dimensional elements with a thin third dimension have little of either but can resist biaxial traction. The structure elements are combined in structural systems . The majority of everyday load-bearing structures are section-active structures like frames, which are primarily composed of one-dimensional (bending) structures. Other types are Vector-active structures such as trusses , surface-active structures such as shells and folded plates, form-active structures such as cable or membrane structures, and hybrid structures. Load-bearing biological structures such as bones, teeth, shells, and tendons derive their strength from
783-557: The symmetry of a crystal determines what physical properties, including piezoelectricity and ferromagnetism , the crystal can have. A large part of numerical analysis involves identifying and interpreting the structure of musical works. Structure can be found at the level of part of a work, the entire work, or a group of works. Elements of music such as pitch , duration and timbre combine into small elements like motifs and phrases , and these in turn combine in larger structures. Not all music (for example, that of John Cage ) has
812-412: Was expanded over the years to accommodate more people, and the triumphal arch was eventually gone. Work in the 1990s brought about a return to the structure's neoclassical roots with the addition of some neoclassical elements in the expansion area. The Quirino Grandstand has been the traditional venue for annual Independence Day activities as well as that of many Philippine presidential inaugurations since
841-478: Was patterned after the Arellano-designed grandstand, (including the triumphal arch) with a simpler design (without the ship bow stage and the statues) and some Art Deco influence in the canopy compared to the original. The structure was completed in 1949, in time for the inauguration of President Elpidio Quirino . Years later after his death, the grandstand was renamed in his honor. Quirino Grandstand
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