scholarly journals Control and indicating equipment communicating via the peripheral component interconnect express bus

2020 ◽  
Vol 9 (2) ◽  
pp. 729-738
Author(s):  
Vaclav Mach ◽  
Milan Adámek ◽  
Jan Valouch ◽  
Karla Barčová
Keyword(s):  
Alarm System ◽  
Main Function ◽  
General Packet Radio Service ◽  
Universal Serial Bus ◽  
External Communication ◽  
Current State ◽  
Smart Control ◽  
Peripheral Component Interconnect ◽  
Audio System ◽  
Service Interface

Nowadays, the Intruder Alarm system is commonly used to protect the life, health and the possession of people in big companies. However, these systems have limited options for managing and remote control. This lack is very often criticized by big companies which want to use the Intruder Alarm System with other applications like Access and Attendance control. The aim of this article is to design a Control and Indicating Equipment which can be implemented into commercially made Personal Computer as expansion card. The designed card provides the main function of the Intruder Alarm system which can be further extended by other applications. The system consists of external communication like Universal Serial Bus, Ethernet and General Packet Radio Service interface. Each individual part of the system is driven by a single microcontroller ATmega328P which can handle communication and evaluation of the current state obtained by devices connected to it. The design can offer all alarm and non-alarm visualization of smart control like irrigation, lights control, audio system, etc. The whole design is driven by the proper standardization and the design consists of every schematic which comes with the explanation

scholarly journals Syndecans: multifunctional cell-surface co-receptors

1997 ◽  
Vol 327 (1) ◽  
pp. 1-16 ◽  
Author(s):  
David J. CAREY
Keyword(s):  
Cell Surface ◽  
Heparan Sulphate ◽  
Biochemical Properties ◽  
Main Function ◽  
Cellular Functions ◽  
Structural Domains ◽  
Cell Matrix ◽  
Current State ◽  
Core Proteins ◽  
Membrane Compartment

This review will summarize our current state of knowledge of the structure, biochemical properties and functions of syndecans, a family of transmembrane heparan sulphate proteoglycans. Syndecans bind a variety of extracellular ligands via their covalently attached heparan sulphate chains. Syndecans have been proposed to play a role in a variety of cellular functions, including cell proliferation and cell–matrix and cell–cell adhesion. Syndecan expression is highly regulated and is cell-type- and developmental-stage-specific. The main function of syndecans appears to be to modulate the ligand-dependent activation of primary signalling receptors at the cell surface. Principal functions of the syndecan core proteins are to target the heparan sulphate chains to the appropriate plasma-membrane compartment and to interact with components of the actin-based cytoskeleton. Several functions of the syndecans, including syndecan oligomerization and actin cytoskeleton association, have been localized to specific structural domains of syndecan core proteins.

scholarly journals Effect of nanoparticles on the expression and activity of matrix metalloproteinases

2018 ◽  
Vol 7 (6) ◽  
pp. 541-553 ◽  
Author(s):  
Magdalena Matysiak-Kucharek ◽  
Magdalena Czajka ◽  
Krzysztof Sawicki ◽  
Marcin Kruszewski ◽  
Lucyna Kapka-Skrzypczak
Keyword(s):  
Matrix Metalloproteinases ◽  
Proteolytic Enzymes ◽  
Main Function ◽  
Inhibitory Effects ◽  
Current State ◽  
Cancer Metastases ◽  
The Impact ◽  
Matrix Metallopeptidases

AbstractMatrix metallopeptidases, commonly known as matrix metalloproteinases (MMPs), are a group of proteolytic enzymes whose main function is the remodeling of the extracellular matrix. Changes in the activity of these enzymes are observed in many pathological states, including cancer metastases. An increasing body of evidence indicates that nanoparticles (NPs) can lead to the deregulation of MMP expression and/or activity both in vitro and in vivo. In this work, we summarized the current state of knowledge on the impact of NPs on MMPs. The literature analysis showed that the impact of NPs on MMP expression and/or activity is inconclusive. NPs exhibit both stimulating and inhibitory effects, which might be dependent on multiple factors, such as NP size and coating or a cellular model used in the research.

scholarly journals Wing magnetohydrodynamic facility of aircraft propulsion system

2021 ◽  
Author(s):  
Pavol Miča ◽  
◽  
Jozef Čerňan
Keyword(s):  
Future Research ◽  
Main Function ◽  
Electrically Conductive ◽  
Advantages And Disadvantages ◽  
Current State ◽  
Primary Drive ◽  
Harmful Emissions ◽  
Technical Issues ◽  
Aircraft Propulsion System ◽  
Aircraft Propulsion

Magnetohydrodynamics is one of the relatively new fields of physics studying the dynamics of magnetic fields in electrically conductive fluids. The implementation using magnetohydrodynamic principles applied to aircraft propulsion systems is so far only in a range of experiments. So far, real applications have occurred only a few times and always only at the level of experiments and prototypes. In my paper, I deal with the application of a magnetohydrodynamic device built into the wing of an airplane. This means should work as a secondary type of drive in cooperation with the primary drive, which is represented by a turbofan motor. The device´s main function is to reduce the fuel requirements of the primary drive and reduce noise and other harmful emissions. The work also includes drawings created in the program AutoCAD, where I designed the location and implementation of a wing magnetohydrodynamic device in the wing of general construction. In this work, I also explore the advantages and disadvantages of using different tips of the primary drive. I am also researching the current state of the problem where I am analyzing the Japanese project of the YAMATO-1 semi-catamaran with magnetohydronymous propulsion and a prototype of an ion-powered crawler from IMT scientists. I also examine in detail all the theoretical knowledge concerning magnetohydrodynamics and wing design. Finally, I compare the advantages and disadvantages of using this tool as well as other technical issues related to construction. This work can serve as a basis for further future research into the application of magnetohydrodynamic principles in aviation

River City Tile Company: External Communication Plan

2015 ◽  
Vol 2 (1) ◽  
Author(s):  
Kaylee Robyn Haynes
Keyword(s):  
Marketing Strategy ◽  
Careful Analysis ◽  
Communication Strategy ◽  
Marketing Campaign ◽  
Communication Plan ◽  
External Communication ◽  
Current State ◽  
Initial Implementation ◽  
River City ◽  
External Communications

River City Tile Company has experienced a successful first three years in business and shows potential for even more growth. An area of focus that has been identified by the owners and staff to expedite this growth is a marketing campaign. The overarching objective of the marketing campaign is to increase monthly sales.Through a careful analysis of the current state of the company’s external communications, and a review of current research, and audience demographics, a marketing strategy has been developed to be carried out immediately. This plan outlines the audience segments we have discovered, their needs and concerns, and appropriate messaging. Two specific tactics are outlined for initial implementation of River City Tile Company’s external communication strategy, with recommendations for future focuses. 

scholarly journals Technique smart control soil moisture system to watering plant based on IoT with arduino uno

2020 ◽  
Vol 9 (5) ◽  
pp. 2038-2044
Author(s):  
Mohanad Ali Meteab Al-Obaidi ◽  
Muna Abdul Hussain Radhi ◽  
Rasha Shaker Ibrahim ◽  
Tole Sutikno
Keyword(s):  
Soil Moisture ◽  
Water Resources ◽  
Agricultural Production ◽  
Voltage Difference ◽  
Current State ◽  
Program Library ◽  
The World ◽  
Smart Control ◽  
Important Challenge ◽  
Arduino Uno

Water scarcity has become the most important challenge facing the world and a source of fear to the global community from the spread of famines due to the lack of agricultural production. For this reason, researchers seek to optimize the use of food resources, including water wealth. This project contributes to the legalization of the use of water resources. One of these methods is to solve the problem of a decrease in water resources, is drip irrigation systems. An affordable system was developed using soil moisture FC-28 hygrometer sensor compatible with arduino uno R3 and sending electrical signals based on voltage difference due to increased or decreased water in the soil to the monitor through the arduino for decision to operate irrigation pumps. The system is controlled by a software that allows the user to know the current state of the soil to choose the type of plant to determine the amount of water and the possibility of adding new types of plants to the program library and other features.

scholarly journals The structure, functions and degradation of pigment-binding proteins of photosystem II.

2006 ◽  
Vol 53 (4) ◽  
pp. 693-708 ◽  
Author(s):  
Robert Luciński ◽  
Grzegorz Jackowski
Keyword(s):  
Photosystem Ii ◽  
Photosynthetic Pigments ◽  
Binding Proteins ◽  
Protein Complexes ◽  
Structure Functions ◽  
Main Function ◽  
Core Complex ◽  
Current State ◽  
Pigment Protein Complexes ◽  
Psii Core Complex

Eleven proteins belonging to photosystem II (PSII) bind photosynthetic pigments in the form of thylakoid membrane-associated pigment-protein complexes. Five of them (PsbA, PsbB, PsbC, PsbD and PsbS) are assigned to PSII core complex while the remaining six (Lhcb1, Lhcb2, Lhcb3, Lhcb4, Lhcb5 and Lhcb6) constitute, along with their pigments, functional complexes situated more distantly with regard to P680 - the photochemical center of PSII. The main function of the pigment-binding proteins is to harvest solar energy and deliver it, in the form of excitation energy, ultimately to P680 although individual pigment-proteins may be engaged in other photosynthesis-related processes as well. The aim of this review is to present the current state of knowledge regarding the structure, functions and degradation of this family of proteins.

scholarly journals THE EFFETENESS OF SOCIAL MEDIA

2018 ◽  
Vol 1 (1) ◽  
Author(s):  
Reni Yankova
Keyword(s):  
Social Media ◽  
Knowledge Transfer ◽  
New Media ◽  
Well Being ◽  
Main Function ◽  
Digital Era ◽  
Current State ◽  
Sign Systems ◽  
Charles Peirce ◽  
Transfer Of Information

Social media are a new phenomenon attracting the interest of researchers from different fields–marketing experts, sociologists, anthropologists, even philosophers and semioticians. The problems related to them vary and many remain unanswered. The current paper analyzes the level of social media habituation, taking Charles Peirce`s evolutionary cosmology, and more specifically the concept of effete mind, as its milestones. Other important studies considered here are from the fields of anthropology and media studies. Communication and the transfer of information have always been vital for living creatures, not only humans but animals, plants and even microorganisms. During the centuries of our existence and evolution we have developed complicated sign systems to satisfy the need for knowledge transfer among the members of our social groups. In the digital era many questions about the new forms of communication arise. Here I will analyze one of them: are these new media something totally new or do they follow some kind of universal tendency and predisposition? To answer this question I will consider Charles Peirce`s ideas of habit and habit-taking tendency, his concepts of living and effete mind, together with the studies of Robin Dunbar and Tom Standage. In his book Writing on the wall. Social media–the first 2, 000 years (2013) Standage examines the question of writing on the walls as one of the oldest methods of communication and knowledge transfer. It dates back to the age of cavemen, long before any of societyЎЇs modern tools were even considered possible. Over the centuries these methods evolved and became more sophisticated but it kept their essence and main function–to transfer information for the well-being of the group and its members. Centuries ago at the dawn of human kind, the necessity of survival shaped our predisposition for communication. Since then, the tools have changed but the necessity and the reasons for it remain the same. As such, the current state of well-developed digital social media could be considered a manifestation of the Peircean concept of habit-taking tendency, combined with human natural need of communication and information sharing stated by Standage and also by the evolutionary anthropologist Robin Dunbar.

ESEM - A multipurpose surface Electron Microscope

1986 ◽  
Vol 44 ◽  
pp. 632-633 ◽  
Author(s):  
G.D. Danilatos
Keyword(s):  
Electron Microscope ◽  
Room Temperature ◽  
Environmental Scanning ◽  
Gas Composition ◽  
Saturated Water Vapor ◽  
Surface Electron ◽  
Current State ◽  
Saturated Water ◽  
New Type ◽  
Temperature And Pressure

Over recent years a new type of electron microscope - the environmental scanning electron microscope (ESEM) - has been developed for the examination of specimen surfaces in the presence of gases. A detailed series of reports on the system has appeared elsewhere. A review summary of the current state and potential of the system is presented here.The gas composition, temperature and pressure can be varied in the specimen chamber of the ESEM. With air, the pressure can be up to one atmosphere (about 1000 mbar). Environments with fully saturated water vapor only at room temperature (20-30 mbar) can be easily maintained whilst liquid water or other solutions, together with uncoated specimens, can be imaged routinely during various applications.

Recent applications of TEM to the study of interfaces

1990 ◽  
Vol 48 (4) ◽  
pp. 308-309
Author(s):  
C. Barry Carter
Keyword(s):  
High Resolution ◽  
Sample Preparation ◽  
Grain Boundaries ◽  
Diffuse Scattering ◽  
Imaging Techniques ◽  
Amorphous Material ◽  
Contrast Imaging ◽  
Current State ◽  
Actual Nature ◽  
High Resolution Images

This paper will review the current state of understanding of interface structure and highlight some of the future needs and problems which must be overcome. The study of this subject can be separated into three different topics: 1) the fundamental electron microscopy aspects, 2) material-specific features of the study and 3) the characteristics of the particular interfaces. The two topics which are relevant to most studies are the choice of imaging techniques and sample preparation. The techniques used to study interfaces in the TEM include high-resolution imaging, conventional diffraction-contrast imaging, and phase-contrast imaging (Fresnel fringe images, diffuse scattering). The material studied affects not only the characteristics of the interfaces (through changes in bonding, etc.) but also the method used for sample preparation which may in turn have a significant affect on the resulting image. Finally, the actual nature and geometry of the interface must be considered. For example, it has become increasingly clear that the plane of the interface is particularly important whenever at least one of the adjoining grains is crystalline.A particularly productive approach to the study of interfaces is to combine different imaging techniques as illustrated in the study of grain boundaries in alumina. In this case, the conventional imaging approach showed that most grain boundaries in ion-thinned samples are grooved at the grain boundary although the extent of this grooving clearly depends on the crystallography of the surface. The use of diffuse scattering (from amorphous regions) gives invaluable information here since it can be used to confirm directly that surface grooving does occur and that the grooves can fill with amorphous material during sample preparation (see Fig. 1). Extensive use of image simulation has shown that, although information concerning the interface can be obtained from Fresnel-fringe images, the introduction of artifacts through sample preparation cannot be lightly ignored. The Fresnel-fringe simulation has been carried out using a commercial multislice program (TEMPAS) which was intended for simulation of high-resolution images.

Proteasome inhibitors as therapeutics

2005 ◽  
Vol 41 ◽  
pp. 205-218
Author(s):  
Constantine S. Mitsiades ◽  
Nicholas Mitsiades ◽  
Teru Hideshima ◽  
Paul G. Richardson ◽  
Kenneth C. Anderson
Keyword(s):  
Multiple Myeloma ◽  
Drug Class ◽  
Proteasome Inhibitors ◽  
Cell Cycle Regulators ◽  
Current State ◽  
Intracellular Mechanism ◽  
Ubiquitin Proteasome ◽  
Proteasome Pathway ◽  
Hodgkin's Lymphomas ◽  
Clinical Research Data

The ubiquitin–proteasome pathway is a principle intracellular mechanism for controlled protein degradation and has recently emerged as an attractive target for anticancer therapies, because of the pleiotropic cell-cycle regulators and modulators of apoptosis that are controlled by proteasome function. In this chapter, we review the current state of the field of proteasome inhibitors and their prototypic member, bortezomib, which was recently approved by the U.S. Food and Drug Administration for the treatment of advanced multiple myeloma. Particular emphasis is placed on the pre-clinical research data that became the basis for eventual clinical applications of proteasome inhibitors, an overview of the clinical development of this exciting drug class in multiple myeloma, and a appraisal of possible uses in other haematological malignancies, such non-Hodgkin's lymphomas.

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