Hierarchy index

In the end, EDMS systems allow for most effective searching when the filing hierarchy, indexing attributes, and some combination of full-text index, synonyms, or relevancy criteria are used in concert to specify the context around a particular search. 

Finally, the fifth is the hierarchy index (h) [50], based on the out-degree of variables ... 

Network Indices Table 7.2 describes the system features. The whole network is made of 27 variables, which are classified into 5 senders, 11 receivers, and 11 transmitters. The low density of the network (0.048) can be explained by the fact that stakeholders identified only a small part of the possible connections. This means that, according to their perception, only some paths of interaction are activated among sender, receiver, and transmitter variables. The hierarchy index (0.12) denotes a wide democratic system with few hierarchical relations. This partly depends on the high proportion of transmitters that makes the whole system much more adaptable to context changes by means of their interactions. The insight is that local stakeholders perceive the situation to be easily changable, and may be affected by several variables. 

Hierarchy Index of General Subject Headings Qualifiers for Organs and Tissues General Subject Index... 

Cardiac arrest is not listed in the alphabetical Hierarchy Index either. However, heart is synonymous with cardiac, and this term is included in the list (Fig. 33). 

In a typical multivitamin-mineral combination product consisting of 10-15 ingredients, it is neither practical nor necessary to require in vitro demonstration of each and every vitamin and mineral. Consequently, in a unique approach to establishing in vitro dissolution for multivitamin-mineral combination products, an index vitamin and an index mineral are identified as markers for dissolution. In an attempt to account for the many different permutations of vitamins and mineral combinations, a hierarchy of index vitamins and index minerals was arrived at and specified (5). Table 1 shows the hierarchy of index vitamins and minerals specified for demonstration of dissolution requirement in the nutritional supplements monographs in USP 25-NF20. 

In view of the reported growing importance ascribed to folic acid deficiency in the prevention of various disease conditions, such as neural tube defects, megaloblastic anemia, colon cancer, and colorectal cancer, a dissolution requirement is specified for folic acid when it is present in multivitamin-mineral combination products. Currently, the dissolution standard required in the official articles of dietary supplements (including vitamin-mineral combination products) places folic acid outside the index vitamin hierarchy. Therefore, a mandatory dissolution test for folic acid is required that is independent of and in addition to the mandatory index vitamin test for multivitamin preparations containing folic acid. 

In contrast to the dissolution criteria used for water-soluble vitamins, the hierarchy for index minerals is based on their importance in public health. For example, iron was chosen as the number one index mineral because iron deficiency is the most prevalent condition in the United States and because iron is present in almost all the multivitamin-mineral combination products currently available on the... 

The simplest kind of formula is a compositional formula or empirical formula, which lists the constituent elements in the atomic proportions in which they are present in the compound. For such a formula to be useful in lists or indexes, an order of citation of symbols (hierarchy) must be agreed. Such hierarchies, often designated seniorities or priorities, are commonly used in nomenclature. For lists and indexes, the order is now generally recommended to be the alphabetical order of symbols, with one very important exception. Because carbon and hydrogen are always present in organic compounds, C is always cited first, H second and then the rest, in alphabetical order. In non-carbon-containing compounds, strict alphabetical order is adhered to. 

Web indexes such as Yahoo have two major advantages over undirected surfing. First, the structured hierarchy of topics makes it easy to find a particular topic or subtopic and then e.xplore its links. Second, Yahoo does not make an attempt to compile every possible link on the Internet (a task that is virtually impossible, given the size of the Web). Rather, sites are evaluated for usefulness and quality by Yahoo s indexers. This means that the... 

APIPAT. This is the patent database produced by the American Petroleum Institute and covers patents from 1964 of interest to the petrochemical industry, including petroleum refining, pollution control, uses of petrochemicals, and catalysts. Enhanced indexing includes terms applied from a hierarchical thesaurus with automatic posting to the broader terms in the hierarchy. Fragments called chemical aspects are linked to describe each compound, and the compounds are further linked to roles (eg, reactant or product) and use (eg, antioxidant or lubricant). ORBIT provides access to a merged APIPAT/WPI file, which allows searchers to draw on the strengths of both databases without the need to search them separately (95). 

For a molecule without symmetry reduction the sum-over-states expression for the hyperpolarizability yean often be modeled within the three level approximation (the ground state (index 0) and two excited states (indices 1,2 - not necessarily indicating the hierarchy of the energy eigenvalues)). If we assume po2 Poll f°r substituted molecules with a centrosymmetric backbone as described above, the number of terms reduces leaving only three terms to consider the negative term N > the dipolar term D , and the two-photon term TP, which includes the second excited state 2Ag. In the static limit one obtains for a one-dimensionally conjugated molecule... 

Appendix I Hierarchies of General Subject Headings lists the general and specific headings that have been developed by CAS for the General Subject Index and the hierarchies employed for these headings. 

In formulating hypotheses for the mechanism of a given complex reaction, and in using different procedures for the selection of one out of many hypotheses (discrimination of hypotheses), the question arises as to the hierarchy of the hypotheses. The intuitive principle of simplicity cannot play the role of a tool for the selection of hypotheses in the case of multiroute reactions because the number of vertices and cycles and the ways of linking cycles in the kinetic graph are already variables. Proceeding from linear mechanisms, we examine here possible approaches to the construction of a quantitative scale for mechanistic complexity or to the selection of a complexity index". 

In order to get some insight on how ELF works, we will analyse a number of parent molecules CeHsX (X = H, OH, F, Cl, Br and I). Their localization domains are displayed in Figure 14. Except for the substituent itself, all these molecules have 6 V(C, C), 5 V(C, H) and one V(C, X) basins. The differences are to be found in the hierarchy of the V(C, C) basins which is ruled by the nature of the substituent. In benzene, all the V(C, C) basins are equivalent and therefore the six critical points of index 1 between these basins have the same value, i.e. rj(rc) = 0.659. In the phenyl halides where the molecular symmetry is lowered from D h to C2v, the former critical points are then distributed in four sets according to the common carbon position ipso, ortho, meta and para. In phenol with a Cj symmetry, the two ortho and the two meta positions are not totally equivalent. In all studied molecules, the r) rc) values are enhanced in the ipso, ortho and para positions and decreased in the meta position. It has been remarked that the electrophilic substitution sites correspond to the carbon for which r) rc) is enhanced. Moreover, it is worthwhile to introduce electrophilic substitution positional indices defined by equation 26,... 

PhilChem Newsgroup. 1998. Discussion Thread "Theories, Models, Formulas, Hierarchies," Feb-Apr 1998. (For access to the archive, email to listserv vm.sc.edu the command "index philchem" for a catalogue. A command "get philchem log9802a" emailed to the same site will retrieve the first batch of messages from February 1998, etc.). 

Heat exchanger network Simultaneous minimization of both the total annual cost and the composite environmental index. Analytic hierarchy process Chen et al. (2002) smdied only one case, whereas Wen and Shonnard (2003) smdied three cases with different stream data. Chen et al (2002) Wen and Shonnard (2003)... 

Ethanol Production Simultaneous minimization of potential environmental impact, resource conservation and energy consumption. Analytic hierarchy process The three criteria were combined into a single objective integrated environmental index, which needs to be minimized. Ethanol production via two alternative routes was compared. Jiacto/. (2004)... 

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