نتایج جستجو برای: a database meta
تعداد نتایج: 13478240 فیلتر نتایج به سال:
in this study, we aimed to conduct a meta-analysis on the results of eligible studies to estimate the prevalence of asthma, copd, and chronic bronchitis in iran. international and iranian databases including pubmed, scopus, web of science, iranmedex, and scientific information database (sid) were searched for population–based studies that had reported the prevalence of asthma and copd from 1990...
Background :Cytotoxic T lymphocyte-associated antigen-4 (CTLA-4) is an important negative regulator of T-cell responses. The -1722TC polymorphism of the CTLA-4 gene may be associated with systemic lupus erythematosus (SLE) risk, but related results from previous studies have been inconsistent. We carried out a meta-analysis to assess this association more precisely. Methods : A systematic s...
Background & Objectives: Breast cancer is the most common cancer among women and one of the leading causes of death in the productivity ages. Mammography screening is the main method for the diagnosis of breast cancer. While analog mammography counts as the standard method of screening, the digital one can be an alternative. This review compared the effectiveness and safety of these technologie...
A meta-answer is a set of statements that assert various properties of an answer to a database uery. These statements may qualify the validity or the completeness o 1 the answer, or they may characterize the answer abstractly. Meta-answers add meaning and insight to standard database answers. We describe an extension to the relational database model for representing properties of the stored dat...
background: these findings from several observational studies, investigated the association between red meat consumption and gliomas, were inconsistent. we conducted a systematic review and meta-analysis of observational studies to summarize available date on the relation between meat intake and risk of glioma. materials and methods: a systematic literature search of relevant reports published ...
Wireless technology is an extension and adaptation of existing applications on laptop computers. This research aims to build a prototype system that supports the transference of existing Web-based database applications into the wireless handheld environment. The system uses a meta specification approach to eliminate programming work. The user need only define the application interface and dataf...
the association between β2-adrenergic receptor (adrb2) -16arg/gly polymorphism (rs1042713) and chronic obstructive pulmonary disease (copd) risk has been investigated in many published studies. however, the results were inconclusive. a meta-analysis was performed to make a more precise estimation of the relationship.the pubmed, embase, isi web of science, the cochrane database of systematic rev...
Graph simulation (using graph schemata or data guides) has been successfully proposed as a technique for adding structure to semistructured data. Design patterns for description (such as meta-classes and homomorphisms between schema layers), which are prominent in the object-oriented programming community, constitute a generalization of this graph simulation approach. In this paper, we show des...
abstract: research purpose: the purpose of this research is to identify academic databases assessment factors and criteria at law and political science majors. the necessity of this research is to distinguish academic databases assessment factors and criteria and to identify the most important ones and rank them in order to select an appropriate database according to students’ and faculty memb...
Background: Recipients of healthcare services have rights, which must be acknowledged and protected. Such rights include observance of acceptable patient physical, mental, spiritual, and social needs guided by commonly accepted rules and regulations. The objective of this study was to conduct a systematic review and meta-analysis of awareness rates and observance of patient rights in Iran from ...
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