1,829 research outputs found
Scientists, engineers and managers - Partners in space
Management practices in aerospace industr
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Information technology and performance management for build-to-order supply chains
The IT performance evaluation in the construction industry
To date there has been limited published work in
the construction management and engineering
literature that has provided empirical evidence to
demonstrate that IT can improve organizational
performance. Without an explicit understanding
about how IT can be effectively used to improve
organizational performance, its justification will
remain to be weak for managers. To ensure the
continuous increase in IT based applications in the
construction industry, sufficient evidence has to be
provided for management in various professions of
the construction industry to evaluate, allocate and
utilize appropriate IT systems. In an attempt to
explore the relationship between IT and
productivity, an empirical investigation of 60
Professional Consulting Firms (PCF) from the
Hong Kong construction industry was undertaken.
A model for determining the organizational
productivity of IT is proposed, and the
methodology used to test the model is described.
The findings are analyzed and a cross-profession
comparison of the results indicated the differences
in the use of IT. The research findings are discussed
with similarities being drawn. The limitations of the
research are then presented and discussed. The
implications of the findings and conclusions then
fully presented
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A supplier selection strategy within the Malaysian telecommunications industry
The telecommunication industry in Malaysia has grown rapidly over the last 15 years, with effective supply chain management becoming increasing important within the sector. A multitude of providers and part owned Malaysian government companies, vendors and suppliers are involved in generating and creating value-adding products and services within this sector (across wireless, wireline, broadband business and consumer lines of business). This paper describes key challenges facing a major telecoms service provider in Malaysia with regards to drivers involved in the overall procurement and supplier selection with regards to components of performance management, decision-making, selection techniques, quality and cost management, procurement policy and procurement ethics. This paper further focuses on defining and detailing research currently being undertaken to develop a framework for identifying supplier selection drivers that are inherent within the sector and suggests a research approach to investigate and develop strategies for supplier selection for the telecommunications industry in Malaysia
Analysis of rs7526084 polymorphism in 3′ downstream of the sestrin 2 gene as an informative marker for molecular diagnosis of kidney stone disease
Background: Kidney stone disease is one of the most common disorders of urinary tract, manifesting with high clinical and genetic heterogeneity in population. Sestrin 2 is involved in many essential processes, especially oxidative and genotoxic stress. Regarding the importance of oxidative stress pathway deregulation in systemic diseases such as kidney disorders, this study was conducted to investigate the association between rs7526084 3′ downstream polymorphism of the sestrin 2 gene and risk of kidney stone in south Iranian patients. Materials and Methods: In this case-control study, 150 patients with kidney stone disease and 180 age- and gender-matched healthy individuals were participated from March to December 2015. Genotyping of the rs7526084 polymorphism was performed using the T-ARMS PCR method. Results: Frequency of the G allele was higher in controls than in cases, and a reduced risk of the disease was shown in the presence of this allele (OR: 0.66, 95CI: 0.48-0.91, P=0.01). Also, the risk of the disease was reduced in the presence of heterozygote CG (OR: 0.49, 95CI: 0.30-0.80, P=0.004) and homozygote GG (OR: 0.47, 95CI: 0.23-0.96, P=0.04) genotypes. Under the dominant genetic model for the G allele (GG+GC vs. CC), this allele significantly reduced the risk of the disease (OR: 0.49, 95CI: 0.31- 0.78, P= 0.002). Conclusion: Reduced risk of kidney stone in the presence of the G allele of the sestrin 2 gene polymorphism might provide the evidence in favor of the involvement of the oxidative stress pathway in the pathogenesis of kidney stone disease
Entanglement vs. gap for one-dimensional spin systems
We study the relationship between entanglement and spectral gap for local
Hamiltonians in one dimension. The area law for a one-dimensional system states
that for the ground state, the entanglement of any interval is upper-bounded by
a constant independent of the size of the interval. However, the possible
dependence of the upper bound on the spectral gap Delta is not known, as the
best known general upper bound is asymptotically much larger than the largest
possible entropy of any model system previously constructed for small Delta. To
help resolve this asymptotic behavior, we construct a family of one-dimensional
local systems for which some intervals have entanglement entropy which is
polynomial in 1/Delta, whereas previously studied systems, such as free fermion
systems or systems described by conformal field theory, had the entropy of all
intervals bounded by a constant times log(1/Delta).Comment: 16 pages. v2 is final published version with slight clarification
Voter Confidence in the Agricultural Industry
Social scientists tend to agree that public opinion influences public policy. As the agricultural industry faces increased scrutiny from public officials and citizen advocacy groups, agricultural communication professionals are faced with the challenge of targeting messages that encourage public confidence in the industry. Research-based marketing segmentation may hold the key to effective political marketing for the industry. While some consumer research has been conducted to better understand food purchasing decisions, more is needed to better understand public attitudes toward the larger agricultural industry and to better recognize any segmentation in public opinion. This study’s findings—drawn from the Agriculture Institute of Florida’s 2006 survey, the 2000 United States Census of Population and Housing, and the 2002 United States Department of Agriculture Census of Agriculture—may help guide future industry messages toward the public
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