Kinetics of element profile pattern during life cycle stage of morning-glory

1999 ◽  
Vol 239 (3) ◽  
pp. 489-493 ◽  
Author(s):  
T. M. Nakanishi ◽  
M. Tamada
Keyword(s):  
Life Cycle ◽  
Life Cycle Stage ◽  
Morning Glory ◽  
Element Profile ◽  
Kinetics Of

Urban Investors' Life Cycle Stage and Investment Pattern

2016 ◽  
Author(s):  
Vrushali Shah ◽  
Sarang Shankar Bhola
Keyword(s):  
Life Cycle ◽  
Life Cycle Stage ◽  
Investment Pattern

UNIVERSITY STUDIES AS A LIFE‐CYCLE STAGE

1988 ◽  
Vol 13 (4) ◽  
pp. 5-13 ◽  
Author(s):  
Tapio Aittola
Keyword(s):  
Life Cycle ◽  
Life Cycle Stage ◽  
University Studies

Identification of asset life cycle stage: case study in heavy-duty truck fleet

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Oscar Daniel Rivera Baena ◽  
Maria Valentina Clavijo Mesa ◽  
Carmen Elena Patino Rodriguez ◽  
Fernando Jesus Guevara Carazas
Keyword(s):  
Life Cycle ◽  
Design Methodology ◽  
Life Cycle Stage ◽  
Waste Collection ◽  
Content Type ◽  
Heavy Duty Truck ◽  
Maintenance Work ◽  
Operational Decision Making ◽  
The Moment

PurposeThis paper aims to determine the stage of the life cycle where the trucks of a waste collection fleet from a Colombian city are located through a reliability approach. The reliability analysis and the evaluation of curve of operational costs allow to know the moment in which it is necessary to make decisions regarding an asset, its maintenance or possible replacement.Design/methodology/approachFor a dataset presented as maintenance work orders, the time to failures (TTFs) for each vehicle in the fleet were calculated. Then, a probability density function for those TTFs was fitted to locate each vehicle in a region of the bathtub curve and to calculate the reliability of the whole fleet. A general functional analysis was also developed to understand the function of the vehicles.FindingsIt was possible to determine that the largest proportion of the fleet was in the final stage of the life cycle, in this sense, the entire fleet represent critical assets which in most of cases could be worth replacement or overhaul.Originality/valueIn this study, an address is exposed for the identification of critical equipment by reliability and statistical analysis. This analysis is also integrated with the maintenance management process. This is a broadly interested topic since it allows to support the maintenance and operational decision-making process, indicating the focus of resource allocation all over the entire asset life cycle.

Developmental gene expression in Leishmania donovani: differential cloning and analysis of an amastigote-stage-specific gene

1994 ◽  
Vol 14 (5) ◽  
pp. 2975-2984
Author(s):  
H Charest ◽  
G Matlashewski
Keyword(s):  
Life Cycle ◽  
Leishmania Donovani ◽  
Repetitive Sequences ◽  
Protozoan Parasite ◽  
Life Cycle Stage ◽  
Immune Serum ◽  
Sand Fly ◽  
Specific Gene ◽  
Reading Frame ◽  
Developmental Gene Expression

Leishmania protozoans are the causative agents of leishmaniasis, a major parasitic disease in humans. During their life cycle, Leishmania protozoans exist as flagellated promastigotes in the sand fly vector and as nonmotile amastigotes in the mammalian hosts. The promastigote-to-amastigote transformation occurs in the phagolysosomal compartment of the macrophage cell and is a critical step for the establishment of the infection. To study this cytodifferentiation process, we differentially screened an amastigote cDNA library with life cycle stage-specific cDNA probes and isolated seven cDNAs representing amastigote-specific transcripts. Five of these were closely related (A2 series) and recognized, by Northern (RNA) blot analyses, a 3.5-kb transcript in amastigotes and in amastigote-infected macrophages. Expression of the amastigote-specific A2 gene was induced in promastigotes when they were transferred from culture medium at 26 degrees C and pH 7.4 to medium at 37 degrees C and pH 4.5, conditions which mimic the macrophage phagolysosomal environment. A2 genes are clustered in tandem arrays, and a 6-kb fragment corresponding to a unit of the cluster was cloned and partially sequenced. An open reading frame found within the A2-transcribed region potentially encoded a 22-kDa protein containing repetitive sequences. The recombinant A2 protein produced in Escherichia coli cells was specifically recognized by immune serum from a patient with visceral leishmaniasis. The A2 protein repetitive element has strong homology with an S antigen of Plasmodium falciparum, the protozoan parasite responsible for malaria. Both the A2 protein of Leishmania donovani and the S antigen of P. falciparum are stage specific and developmentally expressed in mammalian hosts.

scholarly journals Effects of silver nanoparticles on the freshwater snailPhysa acuta: The role of test media and snails’ life cycle stage

2016 ◽  
Vol 36 (1) ◽  
pp. 243-253 ◽  
Author(s):  
Sandra F. Gonçalves ◽  
Maria D. Pavlaki ◽  
Rafael Lopes ◽  
Julia Hammes ◽  
Julián Alberto Gallego-Urrea ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Life Cycle ◽  
Life Cycle Stage

scholarly journals Environmental and Social Impact Assessment of Optimized Post-Tensioned Concrete Road Bridges

2020 ◽  
Vol 12 (10) ◽  
pp. 4265 ◽  
Author(s):  
Vicent Penadés-Plà ◽  
David Martínez-Muñoz ◽  
Tatiana García-Segura ◽  
Ignacio J. Navarro ◽  
Víctor Yepes
Keyword(s):  
Life Cycle ◽  
Impact Assessment ◽  
Social Impact ◽  
Sustainability Assessment ◽  
Life Cycle Stage ◽  
Social Impact Assessment ◽  
Weighting Method ◽  
Ecoinvent Database ◽  
The Social ◽  
Post Tensioned

Most of the definitions of sustainability include three basic pillars: economic, environmental, and social. The economic pillar has always been evaluated but not necessarily in the sense of economic sustainability. On the other hand, the environmental pillar is increasingly being considered, while the social pillar is weakly developed. Focusing on the environmental and social pillars, the use of methodologies to allow a wide assessment of these pillars and the integration of the assessment in a few understandable indicators is crucial. This article is structured into two parts. In the first part, a review of life cycle impact assessment methods, which allow a comprehensive assessment of the environmental and social pillars, is carried out. In the second part, a complete environmental and social sustainability assessment is made using the ecoinvent database and ReCiPe method, for the environmental pillar, and SOCA database and simple Social Impact Weighting method, for the social pillar. This methodology was used to compare three optimized bridges: two box-section post-tensioned concrete road bridges with a variety of initial and maintenance characteristics, and a pre-stressed concrete precast bridge. The results show that there is a high interrelation between the environmental and social impact for each life cycle stage.

scholarly journals The Open Innovation Model of Coaching Interaction in Organisations for Sustainable Performance within the Life Cycle

2018 ◽  
Vol 10 (10) ◽  
pp. 3516 ◽  
Author(s):  
Angelina Roša (Rosha) ◽  
Natalja Lace
Keyword(s):  
Life Cycle ◽  
Open Innovation ◽  
Growth And Development ◽  
Driving Forces ◽  
Life Cycle Stage ◽  
Sustainable Growth ◽  
Business World ◽  
Sustainable Performance ◽  
Life Cycle Stages ◽  
Innovation Model

Organizations need innovation to be competitive and sustainable on their marketplace. Sustainable performance is an important precondition for growth and development. In spite of a body of literature, non-financial factors of sustainable performance remain an open issue. Coaching has gained considerable attention in the business world for its impact on sustainable performance. The current research investigates the use of coaching interaction to facilitate organizational sustainable growth and development in the context of Miller and Friesen’s five stage life-cycle model. The expert opinion survey is chosen as a central method of research. The questionnaire is developed on the literature review that is focused on the drivers for sustainable development throughout the life cycle, and the features of coaching that accelerate these driving forces. Fifteen experts took part in the survey conducted from November 2017 to January 2018. The results are estimated by considering the competence coefficient for each expert. The findings led to creation of an open innovation model, which displays relationships between the appropriate coaching forms and types and the organizational life cycle stages. The developed model enables choosing the optimal way of coaching delivery at any life cycle stage. This model is particularly valuable for the coaching support programs.

scholarly journals Tools and mechanisms of universities innovative development

2020 ◽  
pp. 45-49
Author(s):  
Daria Bilenko
Keyword(s):  
Higher Education ◽  
Life Cycle ◽  
Research University ◽  
Life Cycle Stage ◽  
System Reform ◽  
Innovative Development ◽  
Higher Education System ◽  
Structure Selection ◽  
Conducting Research ◽  
Management Approaches

Relevance of research topic. In the begin to share their functions with other institutions. It requires the integration of education, science and industry through the universities innovative development, their transformation into research universities. Formulation of the problem.Despite the large number of the higher education system reform events, they do not give the expected results. Now, not only the goal of the universities innovative development remains unfulfilled, but the problems of reducing the quality of education and the lack of demand for graduates in the labor market are compounded. Analysis of recent research and publications. Studying modern approaches to managing the universities innovative development, it can be concluded that the methodological basis is the organization of educational and scientific activities, transformation of the organizational structure. Selection of unexplored parts of the general problem. However, the question of combining these methods, considering the universities life cycle stage is located, remains almost unresolved. Setting the task, the purpose of the study. The purpose of the study is to proposean interconnected tools and mechanisms system for the universities innovative development. Methodology for conducting research. Structuring and synthesis of the university’s innovative development methods. Presentation of the main material (results of work). The article suggests the tools and mechanisms of the university’s innovative development, the total of them allows to do innovative activities in all areas of universities work in accordance with its life cycle stage. The field of application of results. The results can be applied both by heads of universities and scientists who study innovative processes and phenomena in education. Conclusions according to the article. The deterioration of higher education in Ukraine requires the introduction of new management approaches. Creating a system of interconnected tools and mechanisms for the universities innovative development will contribute to its transformation into a research university.

Tightening the Life-Cycle Construct: A Taxonomic Study of Growth Stage Configurations in High-Technology Organizations

1994 ◽  
Vol 18 (2) ◽  
pp. 5-29 ◽  
Author(s):  
Steven H. Hanks ◽  
Collin J. Watson ◽  
Erik Jansen ◽  
Gaylen N. Chandler
Keyword(s):  
Cluster Analysis ◽  
Life Cycle ◽  
Growth Stage ◽  
High Technology ◽  
Life Cycle Stage ◽  
Growth Stages ◽  
Taxonomic Study ◽  
Organization Context ◽  
Organization Life Cycle

Over the years much has been written about the organization life cycle, yet there has been remarkably little attention given to the underlying construct of a life-cycle stage. It is proposed in this study that each life-cycle stage consists of a unique configuration of variables related to organization context and structure. Cluster analysis is used to derive a taxonomy of growth stage configurations in a sample of 126 high-technology organizations. The derived configurations suggest a sequence of four growth stages.

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