Organizational evolution: The American life cycle

1999 ◽  
Vol 18 (4) ◽  
pp. 29-36 ◽  
Author(s):  
Douglas S. Fletcher ◽  
Ian M. Taplin
Keyword(s):  
Life Cycle ◽  
Organizational Evolution ◽  
American Life

Organizational evolution: The American life cycle

2000 ◽  
Vol 19 (4) ◽  
pp. 41-48
Author(s):  
Douglas S. Fletcher ◽  
Ian M. Taplin
Keyword(s):  
Life Cycle ◽  
Organizational Evolution ◽  
American Life

Status of North American Life Cycle Inventory Data

2012 ◽  
Vol 16 (3) ◽  
pp. 287-289 ◽  
Author(s):  
Joyce Cooper ◽  
Jim Fava ◽  
Kathrina Simonen ◽  
Sarah Boyd ◽  
Steve Baer
Keyword(s):  
Life Cycle ◽  
North American ◽  
Life Cycle Inventory ◽  
Inventory Data ◽  
Life Cycle Inventory Data ◽  
American Life

E-Collaboration Media Use and Diversity Perceptions

2012 ◽  
Vol 8 (2) ◽  
pp. 28-46 ◽  
Author(s):  
Sherry M. B. Thatcher ◽  
Susan A. Brown ◽  
Jeffrey L. Jenkins
Keyword(s):  
Life Cycle ◽  
Spatial Dispersion ◽  
Media Use ◽  
Virtual Organization ◽  
Theoretical Framework ◽  
Virtual Organizations ◽  
Organizational Evolution ◽  
Media Synchronicity ◽  
Temporal And Spatial ◽  
Media Characteristics

Virtual organizations enable collaboration and interaction among a diverse set of people regardless of their temporal and spatial dispersion. Throughout the life of a virtual organization, diversity plays an influential role in determining outcomes that ultimately affect the longevity and success of the organization. The goal of this paper is to describe the role diversity plays during different organizational evolutionary approaches, and how e-collaboration media characteristics interact with diversity and organizational evolution to influence outcomes. The authors leverage media synchronicity theory to discuss how the characteristics of different e-collaboration media can reduce or enhance perceived diversity. The role that perceived diversity has in determining outcomes is a function of whether a virtual organization is evolving according to the life-cycle, telelogical, or dialectic evolutionary approaches. Guided by organizational evolution, diversity, attribution, and media theories, the authors propose a theoretical framework with a set of propositions. The authors also provide an illustration of how the framework may be implemented by managers of virtual organizations.

Ultrastructural analysis of “Sensory” surface nerve endings and “putative” neurotransmitter sites in Schistosoma mansoni Miracidia

1989 ◽  
Vol 47 ◽  
pp. 962-963
Author(s):  
Betty Ruth Jones ◽  
Steve Chi-Tang Pan
Keyword(s):  
Nervous System ◽  
Life Cycle ◽  
Schistosoma Mansoni ◽  
Snail Host ◽  
Complex Life Cycle ◽  
Rational Approach ◽  
Effective Control ◽  
The Social ◽  
Social And Economic Development ◽  
Basic Biology

INTRODUCTION: Schistosomiasis has been described as “one of the most devastating diseases of mankind, second only to malaria in its deleterious effects on the social and economic development of populations in many warm areas of the world.” The disease is worldwide and is probably spreading faster and becoming more intense than the overall research efforts designed to provide the basis for countering it. Moreover, there are indications that the development of water resources and the demands for increasing cultivation and food in developing countries may prevent adequate control of the disease and thus the number of infections are increasing.Our knowledge of the basic biology of the parasites causing the disease is far from adequate. Such knowledge is essential if we are to develop a rational approach to the effective control of human schistosomiasis. The miracidium is the first infective stage in the complex life cycle of schistosomes. The future of the entire life cycle depends on the capacity and ability of this organism to locate and enter a suitable snail host for further development, Little is known about the nervous system of the miracidium of Schistosoma mansoni and of other trematodes. Studies indicate that miracidia contain a well developed and complex nervous system that may aid the larvae in locating and entering a susceptible snail host (Wilson, 1970; Brooker, 1972; Chernin, 1974; Pan, 1980; Mehlhorn, 1988; and Jones, 1987-1988).

A freeze-fracture-etched study of the physarum polycephalum plasma membrane during early formation of the macroplasmodial stage

1993 ◽  
Vol 51 ◽  
pp. 346-347
Author(s):  
Randolph W. Taylor ◽  
Henrie Treadwell
Keyword(s):  
Plasma Membrane ◽  
Life Cycle ◽  
Growth Phase ◽  
Filter Paper ◽  
Physarum Polycephalum ◽  
Freeze Fracture ◽  
Petri Dish ◽  
Wire Screen ◽  
Wide Mouth ◽  
Sterile Filter

The plasma membrane of the Slime Mold, Physarum polycephalum, process unique morphological distinctions at different stages of the life cycle. Investigations of the plasma membrane of P. polycephalum, particularly, the arrangements of the intramembranous particles has provided useful information concerning possible changes occurring in higher organisms. In this report Freeze-fracture-etched techniques were used to investigate 3 hours post-fusion of the macroplasmodia stage of the P. polycephalum plasma membrane.Microplasmodia of Physarum polycephalum (M3C), axenically maintained, were collected in mid-expotential growth phase by centrifugation. Aliquots of microplasmodia were spread in 3 cm circles with a wide mouth pipette onto sterile filter paper which was supported on a wire screen contained in a petri dish. The cells were starved for 2 hrs at 24°C. After starvation, the cells were feed semidefined medium supplemented with hemin and incubated at 24°C. Three hours after incubation, samples were collected randomly from the petri plates, placed in plancettes and frozen with a propane-nitrogen jet freezer.

A Spreadsheet Life Cycle Cost Model for System Modernization Studies

1994 ◽  
Vol 11 (1) ◽  
pp. 47-56
Author(s):  
Virginia C. Day ◽  
Zachary F. Lansdowne ◽  
Richard A Moynihan ◽  
John A. Vitkevich
Keyword(s):  
Life Cycle ◽  
Life Cycle Cost ◽  
Cost Model

The Life-Cycle for the Student Physician

1978 ◽  
Vol 23 (2) ◽  
pp. 85-86
Author(s):  
BERTRAM J. COHLER
Keyword(s):  
Life Cycle ◽  
Student Physician
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