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Search Results: 1 - 10 of 6426 matches for " Sarah Samadi "
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The Relationship between IT and Supply Chain Performance: A Systematic Review and Future Research  [PDF]
Elnouaman Samadi, Ismail Kassou
American Journal of Industrial and Business Management (AJIBM) , 2016, DOI: 10.4236/ajibm.2016.64044
Abstract: Many firms have spent large investments in developing and implementing information technologies and systems to enhance their supply chain performance with little benefit, while others have spent similar amount of money with great success [1]. The IT productivity paradox in supply chain performance is widely cited as a polemic that needs more investigation. This work reviews the body of knowledge related to the relationship between IT and supply chain performance through a systematic literature review study, following a pre-defined search protocol that can be used by other researchers to review other subjects in the area of information technology, to provide an overview of the state of the art and identify research challenges and gaps. 33 papers are finally selected, in which three main themes of research, nineteen IT-relates characteristics, and seventeen mediator factors to enhance supply chain performance are identified. The indirect effect of IT in SCP is the major findings in the literature. This work presents some new guidelines of research.
Evaluation of Infill Development Potential in Zone 8 of Tabriz by Analysis Network Process Method  [PDF]
Mohammadtaghi Razavian, Roghayeh Samadi
Current Urban Studies (CUS) , 2016, DOI: 10.4236/cus.2016.42009
Abstract: One of the most important issues in the development of modern cities is the dispersed and horizontal expansion of cities. Due to a substantial effect of the form of a city on its stability, it is necessary to know, study and understand its different dimensions and guide it to achieve sustainable development. Thus, infill development that is the simplest interpretation of urban endogenous development is considered as one of the urban smart growth strategies. Focusing on the vacant and abandoned lands in cities, infill development tries to load development on these lands. This study aimed to use infill development approach to achieve future development of Zone 8 of Tabriz and identify its potentials, in which several indicators have been used including quality of buildings, access and permeability, compressibility and granularity. In order to determine the final capacity of development and the effect of each indicator, the indicators were weighted by analytic network process (ANP) approach. The results of the study indicated that 38 hectares of the area under study had very high potential of development that accounted for 12.14%. Therefore, Zone 8 of Tabriz has much potential in the infill development. It could be said that half of the total area within the study area is prone to the internal development that requires formulating a suitable planning based on the principles of smart growth.
Deep-Sea Origin and In-Situ Diversification of Chrysogorgiid Octocorals
Eric Pante, Scott C. France, Arnaud Couloux, Corinne Cruaud, Catherine S. McFadden, Sarah Samadi, Les Watling
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0038357
Abstract: The diversity, ubiquity and prevalence in deep waters of the octocoral family Chrysogorgiidae Verrill, 1883 make it noteworthy as a model system to study radiation and diversification in the deep sea. Here we provide the first comprehensive phylogenetic analysis of the Chrysogorgiidae, and compare phylogeny and depth distribution. Phylogenetic relationships among 10 of 14 currently-described Chrysogorgiidae genera were inferred based on mitochondrial (mtMutS, cox1) and nuclear (18S) markers. Bathymetric distribution was estimated from multiple sources, including museum records, a literature review, and our own sampling records (985 stations, 2345 specimens). Genetic analyses suggest that the Chrysogorgiidae as currently described is a polyphyletic family. Shallow-water genera, and two of eight deep-water genera, appear more closely related to other octocoral families than to the remainder of the monophyletic, deep-water chrysogorgiid genera. Monophyletic chrysogorgiids are composed of strictly (Iridogorgia Verrill, 1883, Metallogorgia Versluys, 1902, Radicipes Stearns, 1883, Pseudochrysogorgia Pante & France, 2010) and predominantly (Chrysogorgia Duchassaing & Michelotti, 1864) deep-sea genera that diversified in situ. This group is sister to gold corals (Primnoidae Milne Edwards, 1857) and deep-sea bamboo corals (Keratoisidinae Gray, 1870), whose diversity also peaks in the deep sea. Nine species of Chrysogorgia that were described from depths shallower than 200 m, and mtMutS haplotypes sequenced from specimens sampled as shallow as 101 m, suggest a shallow-water emergence of some Chrysogorgia species.
Integrative Biology of Idas iwaotakii (Habe, 1958), a ‘Model Species’ Associated with Sunken Organic Substrates
Justine Thubaut, Laure Corbari, Olivier Gros, Sébastien Duperron, Arnaud Couloux, Sarah Samadi
PLOS ONE , 2013, DOI: 10.1371/journal.pone.0069680
Abstract: The giant bathymodioline mussels from vents have been studied as models to understand the adaptation of organisms to deep-sea chemosynthetic environments. These mussels are closely related to minute mussels associated to organic remains decaying on the deep-sea floor. Whereas biological data accumulate for the giant mussels, the small mussels remain poorly studied. Despite this lack of data for species living on organic remains it has been hypothesized that during evolution, contrary to their relatives from vents or seeps, they did not acquire highly specialized biological features. We aim at testing this hypothesis by providing new biological data for species associated with organic falls. Within Bathymodiolinae a close phylogenetic relationship was revealed between the Bathymodiolus sensu stricto lineage (i.e. “thermophilus” lineage) which includes exclusively vent and seep species, and a diversified lineage of small mussels, attributed to the genus Idas, that includes mostly species from organic falls. We selected Idas iwaotakii (Habe, 1958) from this latter lineage to analyse population structure and to document biological features. Mitochondrial and nuclear markers reveal a north-south genetic structure at an oceanic scale in the Western Pacific but no structure was revealed at a regional scale or as correlated with the kind of substrate or depth. The morphology of larval shells suggests substantial dispersal abilities. Nutritional features were assessed by examining bacterial diversity coupled by a microscopic analysis of the digestive tract. Molecular data demonstrated the presence of sulphur-oxidizing bacteria resembling those identified in other Bathymodiolinae. In contrast with most Bathymodiolus s.s. species the digestive tract of I. iwaotakii is not reduced. Combining data from literature with the present data shows that most of the important biological features are shared between Bathymodiolus s.s. species and its sister-lineage. However Bathymodiolus s.s. species are ecologically more restricted and also display a lower species richness than Idas species.
Open Innovation Business Model in the Food Industry: Exploring the Link with Academia and SMEs
Saeed Samadi
Journal of Economics, Business and Management , 2014, DOI: 10.7763/joebm.2014.v2.126
Abstract: The aim of this paper is to provide an overview of the recent developments that have been made in the area of innovation management in the food industry. The paper tackles particularly open innovation and how it has been applied in the food industry. Open innovation is the strategy adopted by companies where they get to share certain levels of technology up to some levels as a way of continued and improved productivity in the food sector. The continued research by companies has made them realize that it would be cheaper to share some of the knowledge and skills that have already been made in the food industry, and in order to do so, certain rules have been made to govern the sharing of the particular skills and knowledge. This has involved measures such as companies licensing their set of research skills and sharing them or selling them when they see it necessary. This paper also highlights how various bodies contribute to creativity and innovations being carried out in the food industry.
Cochlear Implant in Adults
Jaleh Samadi
Audiology , 2003,
Abstract: Cochlear implant is the result of a great combination and collaboration of engineering and medicine. It is mainly because it has the most conflict with the human nervous system among all prosthesis. Cochlear implant helps a child with profound hearing loss to understand and articulate speech and let an adult person with hearing loss communicate with people by phone. Although these wonderful results could not be seen in all patients, will let us know about the great scientific findings.
Stochastic excitation of acoustic modes in stars
R. Samadi
Physics , 2009, DOI: 10.1007/978-3-642-19928-8_11
Abstract: For more than ten years, solar-like oscillations have been detected and frequencies measured for a growing number of stars with various characteristics (e.g. different evolutionary stages, effective temperatures, gravities, metal abundances ...). Excitation of such oscillations is attributed to turbulent convection and takes place in the uppermost part of the convective envelope. Since the pioneering work of Goldreich & Keely (1977), more sophisticated theoretical models of stochastic excitation were developed, which differ from each other both by the way turbulent convection is modeled and by the assumed sources of excitation. We review here these different models and their underlying approximations and assumptions. We emphasize how the computed mode excitation rates crucially depend on the way turbulent convection is described but also on the stratification and the metal abundance of the upper layers of the star. In turn we will show how the seismic measurements collected so far allow us to infer properties of turbulent convection in stars.
Stochastic excitation of stellar oscillations
Reza Samadi
Physics , 2001,
Abstract: Excitation of solar oscillations is attribued to turbulent motions in the solar convective zone. It is also currently believed that oscillations of low massive stars (M <2 Mo) - which possess an upper convective zone - are stochastically excited by turbulent convection in their outer layers. A recent theoretical work (Samadi & Goupil, 2001 ; Samadi et al, 2001) supplements and reinforces this theory. This allows the use of any available model of turbulence and emphasizes some recent unsolved problems which are brought up by these new theoretical developments.
A solution to an open problem on lower against number in graphs
Babak Samadi
Mathematics , 2014,
Abstract: In [1] the problem of finding a sharp lower bound on lower against number of a general graph is mentioned as an open question. We solve the problem by establishing a tight lower bound on lower against number of a general graph in terms of order and maximum degree.
On domination and packing in graphs with emphasis on trees
Babak Samadi
Mathematics , 2015,
Abstract: We investigate (lower) packing and (lower) open packing numbers in graphs. We bound these two parameters from below in terms of order, maximum degree and the number of support vertices. These sharp lower bounds can be applied for trees, appropriately. Also, we give upper bounds on (total) domination number of trees.
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