Consideration of Legacy Structures Enabling a Double Helix Development of Production Systems and Products

2013 ◽  
pp. 21-32 ◽  
Author(s):  
Magnus Wiktorsson
Keyword(s):  
Production Systems ◽  
Double Helix

Protamine-DNA interaction

1978 ◽  
Vol 36 (2) ◽  
pp. 200-201
Author(s):  
D.P. Bazett-Jones ◽  
F.P. Ottensmeyer
Keyword(s):  
Small Volume ◽  
Double Helix ◽  
Dna Interaction ◽  
Dark Field ◽  
Sperm Head ◽  
Nuclear Proteins ◽  
Field Electron Microscopy ◽  
Dark Field Electron ◽  
Dna Double Helix ◽  
Positively Charged

Dark field electron microscopy has been used for the study of the structure of individual macromolecules with a resolution to at least the 5Å level. The use of this technique has been extended to the investigation of structure of interacting molecules, particularly the interaction between DNA and fish protamine, a class of basic nuclear proteins of molecular weight 4,000 daltons.Protamine, which is synthesized during spermatogenesis, binds to chromatin, displaces the somatic histones and wraps up the DNA to fit into the small volume of the sperm head. It has been proposed that protamine, existing as an extended polypeptide, winds around the minor groove of the DNA double helix, with protamine's positively-charged arginines lining up with the negatively-charged phosphates of DNA. However, viewing protamine as an extended protein is inconsistent with the results obtained in our laboratory.

Electron microscopic assays of restriction endonuclease cutting, exonuclease digestion, and hybridization

1984 ◽  
Vol 42 ◽  
pp. 686-687
Author(s):  
Mark Hannibal ◽  
Jacob Varkey ◽  
Michael Beer
Keyword(s):  
Electron Microscope ◽  
Low Temperature ◽  
Restriction Endonuclease ◽  
Double Helix ◽  
Test Material ◽  
Electron Microscopic ◽  
Exonuclease Iii ◽  
Dna Molecule ◽  
Linear Molecules ◽  
Exonuclease Digestion

Workman and Langmore have recently proposed a procedure for isolating particular chromatin fragments. The method requires restriction endonuclease cutting of the chromatin and a probe, their digestion with two exonucleases which leave complimentary single strand termini and low temperature hybridization of these. We here report simple electron microscopic monitoring of the four reactions involved.Our test material was ϕX-174 RF DNA which is cut once by restriction endonuclease Xho I. The conversion of circles to linear molecules was followed in Kleinschmidt spreads. Plate I shows a circular and a linear DNA molecule. The rate of cutting is shown in Figure 1.After completion of the endonuclease cutting, one portion of the DNA was treated with exonuclease III, an enzyme known to digest the 3' terminals of double helical DNA. Aliquots when examined in the electron microscope reveal a decreasing length of double helix and increasing bushes at the ends.

Component flow analysis — an effective approach to production systems' design

1972 ◽  
Vol 51 (5) ◽  
pp. 165 ◽  
Author(s):  
I.G.K. Ei-Essawy ◽  
J. Torrance
Keyword(s):  
Production Systems ◽  
Flow Analysis ◽  
Systems Design

2020–2021 Florida Citrus Production Guide: Citrus Under Protective Screen (CUPS) Production Systems

EDIS ◽  
2020 ◽  
Author(s):  
Arnold W. Schumann ◽  
Ariel Singerman ◽  
Alan L. Wright ◽  
Rhuanito S. Ferrarezi
Keyword(s):  
Production Systems ◽  
Citrus Production ◽  
Florida Citrus ◽  
Protective Screen

Analysis and Simulation Methods of the Mechanisms for the Innovational Development

2019 ◽  
pp. 16-33
Author(s):  
Marta K. Isaeva
Keyword(s):  
Production Systems ◽  
Technological Development ◽  
Computer Experiment ◽  
Simulation Models ◽  
Construction Simulation ◽  
Technological Structure ◽  
Research Sector ◽  
Practical Trial ◽  
Construction Model ◽  
Computation Analysis

The paper dedicates in commemoration of K.A. Bagrinovsky, known scientist, doctor of economic sciences, professor. His thesis was theoretic problems of mathematical modeling and operation of economy. His works in the operations research, the methods making decision, the simulation were received in scientific world. The analysis and the modeling of the mechanisms for scientific and technological development for the production systems of different level in economic hierarchic both centrally controlled economy and making mechanism were conduced by Bagrinovsky in CEMI RAS. The paper presents the investigations (2001–2015) of the analysis and the simulation of the different mechanisms of the innovational activity. It also discusses the methods of the development the complex of the simulation models. In a sense simulation modeling is the science and the art as the selection of the salient parameters for the construction model, intake simplification, the computer experiment and the making decision based on scarcity of accuracy models rest on the heuristic power of men: the practical trial, the intelligence and the intuition. K.A. Bagrinovsky introduced the considerable endowment in the development of this direction for economic and mathematical investigation.The principal object was to show that the relationship between the innovational policy and the technological structure, scientific research sector and the introducing of the progressive production and the organizational structure is obtainable by the models. The character of these relationships may be to use in control of the parameters for the modernization economic. The construction simulation models and the experimental computation analysis were presented the investigations the different mechanisms of the innovational development ant the variants of the estimation have been accomplished on the modeling level by the computer experiment.

Does basic education students know the importance of agroecology production systems for the conservation of biodiversity?

2020 ◽  
Vol 9 (4) ◽  
pp. e04942784
Author(s):  
Andrea Aline Mombach ◽  
Carla Grasiele Zanin Hegel ◽  
Rogério Luis Cansian ◽  
Sônia Beatris Balvedi Zakrzevski
Keyword(s):  
Student Perceptions ◽  
Rural Areas ◽  
Water Conservation ◽  
Social Transformation ◽  
Basic Education ◽  
Production Systems ◽  
Agricultural Systems ◽  
Education Students ◽  
Chi Square ◽  
Conservation Of Biodiversity

The perception of a basic education of the importance of agroecological agricultural systems for human and environmental health is fundamental for changes in consumption habits, the conservation of local biodiversity and long-term social transformation. We analyzed, by utilizing a questionnaire consisting of open and closed questions, the perceptions about agroecological and conventional agricultural production systems in 360 final students of basic education residing in nine Functional Planning Regions of southern Brazil. We used classification categories for answers within thematic axes, expressed in percentages and analyzed by means of Chi-square and Kruskal-Wallis tests. In general, students recognize agroecological systems as healthier for their families and for soil and water conservation, largely because they do not use agrochemicals. However, they demonstrated difficulties when arguing their importance for the conservation of biodiversity, ecosystems and for ensuring the food security of populations. Television was the main source of information related to agroecology, mainly for students residing in rural areas, thus pointing out shortcomings in basic education regarding the approach of the theme in schools. Our results show the need to build a complex network of knowledge and discussions on agroecological agricultural systems in basic education, involving changes in student perceptions, behaviors and sustainable choices.

THE CONCEPT OF COMPETITIVE VALUE CHAINS IN PRODUCTION SYSTEMS AS AN INSTITUTIONAL STRUCTURE OPERATING ON NETWORK PRINCIPLES

2019 ◽  
Vol 6 (3) ◽  
pp. 61-67
Author(s):  
Niyaz Mustjakimovich Abdikeev ◽  
Anton Alekseevich Losev ◽  
Andrey Ivanovich Gaydamaka
Keyword(s):  
Business Processes ◽  
Production Systems ◽  
Institutional Structure ◽  
Cognitive Models ◽  
Value Chains ◽  
High Tech ◽  
Practical Implementation ◽  
Digital Platform ◽  
Software Product ◽  
The Creation

The Concept of competitive value chains in production systems, as an institutional structure operating on network principles, was the impetus for the development of a system of models of inter-industry digital platform for the management and optimization of cooperation of high-tech network production systems. The article describes the ways of integration into business processes of production systems of simulation and cognitive models. The practical implementation of the system of these models is a separate software product - an interdisciplinary digital platform for participants in the creation of new high-tech products and their components.

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