Assembly of fission yeast pericentromeric heterochromatin and generation of small interfering RNAs (siRNAs) from noncoding centromeric transcripts are mutually dependent processes. How this interdependent positive feedback loop is first triggered is a fundamental unanswered question. Here, we show that two distinct Argonaute (Ago1)-dependent pathways mediate small RNA generation. RNA-dependent ...

Abstract Theoretical approaches, computer modell methods and experimental studies analyse the state behaviour of machine parts to determine changes in their properties parameters from a single synergetic position. Development implementation integrated information systems for control technological processes manufacturing machines assembly is an essential mover economic growth industrialized coun...

Bionanotechnology is an emerging field with great promise in molecular science. The field is so new that it has yet to be formally defined. However, it can be characterized as a primitive technology that takes advantage of the properties of highly evolved natural products like nucleic acids and proteins by attempting to harness them to achieve new and useful functionalities on the nanoscale. It...

In the manufacture of certain products such as computers, turbines, and automobiles, various components and subassemblies must be combined in a specified assembly order over a period of time. Certain items must be on hand before others can be produced, and these requirements are determined by the product structure. Management's objective is to turn out timely products in the most economic ...

This paper studies the extent and variation in production cost pass-through for U.S. outsourcing imports. Data from 4,676 products imported through the U.S. overseas assembly program (OAP) show that outsourcing imports were characterized by incomplete pass-through of production and trade costs to import prices. Notably, passthrough was higher for products assembled in high education countries w...

Objective(s): In this work, pomegranate juice was used as a capping agent for self- assembly to form particles-like Au nanostructures in the presence of AuHCl4.3H2O as aurate source. Besides, to investigate the concentration effect of pomegranate juice as the green capping agent on the morphology and particle size of final products several experiments were...

Electromagnetic forming is a high energy rate forming process in which an electromagnetic Lorentz body force is used for deformation of products.  In this article, electromagnetic forming process was simulated for the assembly of parts as an innovative method.  The effect of important process parameters such as discharge energy, radius and width of rectangular groove on the strength of the asse...

Mixed model two-sided assembly lines (MM2SAL) are applied to assemble large product models, which is produced in high-volume. So, the sequence planning of products to reduce cost and increase productivity in this kind of lines is imperative. The presented problem is tackled in two steps. In step 1, a framework is developed to select and prioritize customer orders under the finite capacity of th...

Electromagnetic forming is a high energy rate forming process in which an electromagnetic Lorentz body force is used for deformation of products.  In this article, electromagnetic forming process was simulated for the assembly of parts as an innovative method.  The effect of important process parameters such as discharge energy, radius and width of rectangular groove on the strength of the asse...

The assembly quality of a complex product is the result combined effects multiple manufacturing stages, including design, machining and assembly, it influenced by associated elements with coupling mechanisms. These generate transmit deviations during process which are difficult to analyze express effectively. Current studies have focused on analysis optimization surface errors single or few com...