89 research outputs found
ABOUT DIRECT SALES IN THE WORLD, EUROPE AND ROMANIA
No full textDirect sale represents a modern product distribution system directly to consumers, generally, directly to their homes, to their workplace or other places, beside retail shops. The best known type of direct sale, the Network Marketing or Multilevel Marketing implies the existence of a network of distributors which earn income from selling on commission, to which they add the trade markup. This paper is based upon the analysis of these types of sales starting with the study of specialized literature especially by foreign authors, mainly Americans, with the analysis of statistical data presented by several organizations such as SELDIA (The European Direct Selling Association), MLM International Romania, ACVD (Association of Direct Selling Companies in Romania), as well as the legal regulations within this field. In conclusion, the paper presents an interesting comparison of the sales and structure volume between the Europe and Romania
Interlayer stress absorbing composite (ISAC) for mitigating reflection cracking in asphalt concrete overlays
No full text"This study deals with the design of a composite material which could effectively alleviate/mitigate the problem of reflection cracking in an AC overlay. After reviewing various case histories and having identified the problem areas in the treatments currently in use, a composite material consisting of two geotextile layers containing a thin viscoelastic rubber asphalt layer named, ""Interlayer Stress Absorbing Composite (ISAC)"" was proposed."To approach the design problem of the ISAC system effectively properties of the materials intended to be used in the system were first identified. Various models and laboratory testing procedures were used for this purpose. A Climate-Materials-Structural (CMS) pavement model was used to establish the pavement temperature range in Northern Illinois. A number of geotextiles were selected and tested for their engineering properties. Several samples of rubber asphalt were prepared by blending various ratios of crumb rubber with different types and ratios of asphalt cements. These materials were tested at different temperatures and the effects of temperature and rate of deformation on stiffness were investigated."After having selected the materials suitable for the ISAC system, based on their properties, a prototype ISAC system was fabricated in the laboratory and was then checked against slippage under an overlay with a vehicle making a sharp turn or applying sudden brakes. The computer program ""CIRCLY"" was used for this purpose. Testing equipment was developed to evaluate the interfacial shear strength and laboratory testing was performed to determine the shear strength of the fabricated ISAC layer under an AC overlay. Required stiffens was achieved in the ISAC core material by adding hydrated lime in the rubber asphalt."After completion of the component property testing program, the ISAC layer was fabricated and prepared for laboratory evaluation. A testing device was developed in the laboratory that simulated field conditions to evaluate an AC overlay over a cracked PCC slab with and without an ISAC system. The performance of the ISAC system was evaluated by comparing crack growth in the overlay of a control pavement section with that in an overlay over the ISAC treated PCC slab.Made available in DSpace on 2011-05-07T12:29:42Z (GMT). No. of bitstreams: 2
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iSac: Intimacy based Access Control for Social Network Sites
No full textParticipation in social networking sites has dramatically increased in recent years. Users on social networking sites spend lots of time generating large quantities of various personal content items (eg. diaries, albums, and comments) and browsing these varieties of content everyday. However, existing social networking sites do not provide effective access control mechanisms to assure the privacy of user-generated content. A user's personal content on social networking sites may be exposed to other users without any access control. This paper presents iSac, a novel intimacy-based social access control mechanism on social networking sites. iSac allows a user to make his access control policy on social networking sites according to intimacy degrees of him with respect to other users. iSac will first outline a user's activity profile according to his atomic social activities with respect to his seed friends. Then we adopt Naive-Bayes algorithm to calculate the intimacy degrees and rankings of all the user's friends. A content owner can make his access control policy by assigning a range of intimacy degrees. Users whose intimacy degrees are in the acceptable range can visit the content owner's personal content. Our experiments which use data collected from RenRen in China prove that iSac can effectively differentiate a user's friends by intimacy degrees so as to provide a novel access control mechanism with an improved granularity.http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000310381500076&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701Computer Science, Theory & MethodsEngineering, Electrical & ElectronicEICPCI-S(ISTP)
A decision theory approach to standing order procurement of NASA reports
No full textExplains various package deal procurement methods including standing order method for library documents. Enumerates different standing order services of NTIS for technical reports. Describes the NASA information system. Discusses and analyses the economy of NASA FS service by applying decision theory approach and considering the various costs as well as saving aspects/advantages. Explains the non-economic factors to be considered in evaluating such a service. Suggests ways of making NASA FS service more beneficial to the library of ISRO Satellite Centre (ISAC)
USE OF MOBILE TECHNOLOGY IN BANKING SERVICES
No full textTechnology and applications of mobile phones offer many opportunities for businesses, they also presenting a continuous development and new challenges. Although this service is currently viewed with reluctance by customers, banks need to overcome this drawback and understand how this service can be combined with other alternative channels such as social media, to create value for customers. In this paper I presented information about present and perspectives in mobile applications industry, what can a mobile application do in banking, banking mobile applications in Romania, mobile banking applications worldwide
Allergic phenotypes in patients with respiratory allergy evaluated by microchip ISAC technique
No full textUniverzita Karlova Farmaceutická fakulta v Hradci Králové Katedra biologických a lékařských věd Autor: Bc. Petra Porubová Vedoucí práce: prof. RNDr. Ctirad Andrýs, Ph.D. Název diplomové práce: Senzibilizační profil u pacientů s respiračními formami alergického zánětu hodnocený pomocí multiplexové metody ISAC Klíčová slova: alergický zánět, specifické IgE protilátky, molekulární alergeny, multiplexová metoda, ISAC Cíl: Cílem práce bylo zhodnocení senzibilizačního profilu u pacientů s alergickou rhinitidou a/nebo s astmatem bronchiale a zjištění možných rozdílů mezi pacienty s různou závažností onemocnění. Metody: Pro stanovení specifických IgE protilátek proti 112 alergenním komponentám byla využita metoda ImmunoCAP ISAC. Hodnocený soubor zahrnoval 152 pacientů (57,9 % žen) z alergologické ambulance Ústavu klinické imunologie a alergologie Fakultní nemocnice Hradec Králové. Výsledky: Nejčastějšími alergeny v daném souboru pacientů s respiračními formami alergického zánětu byly komponenty Phl p 1 (68,4 %) a Bet v 1 (65,1 %). Rozdíly v počtu pozitivních a negativních reakcí byly prokázány mezi pacienty s různou závažností alergické rhinitidy. Byly nalezeny korelace mezi počty pozitivních/negativních reakcí a závažností astmatu bronchiale. Nejvyšší hladiny specifických IgE byly naměřeny u komponent...Charles University Faculty of Pharmacy in Hradec Králové Department of Biological and Medical Sciences Author: Bc. Petra Porubová Supervisor: prof. RNDr. Ctirad Andrýs, Ph.D. Title of diploma thesis: Allergic phenotypes in patients with respiratory allergy evaluated by microchip ISAC technique Key words: allergic inflammation, allergen specific IgE, component resolved diagnostics, microchip, ISAC Background: The aim of this diploma thesis was to evaluate the sensitization profile in the group of pacients with allergic rhinitis and/or bronhial asthma and to identify possible differences between patients with different disease severity. Methods: ImmunoCAP ISAC was used to determine specific IgE antibodies against 112 allergen components. The evaluated group included 152 patients (57.9 % women) from the allergology outpatient office of the Department of Clinical Immunology and Allergology, University Hospital Hradec Králové. Results: The most common allergens in this group of patients were the components Phl p 1 (68,4 %) and Bet v 1 (65,1 %). Differences in the number of positive and negative reactions were demonstrated between patients with different severity of allergic rhinitis. Correlations were found between the number of positive/negative reactions and the severity of bronchial asthma. And the...Department of Biological and Medical SciencesKatedra biologických a lékařských vědFaculty of Pharmacy in Hradec KrálovéFarmaceutická fakulta v Hradci Králov
THE PLACE OF FACEBOOK IN INTERNATIONAL SOCIAL NETWORK PORTFOLIO
No full textThe paper aims to present a structure for social networks by various criteria, such as: user types, informational technology used as support and developed applications. Based on these elements, we presented Facebook not only in terms of user numbers and their evolution but also regarding the Facebook business, starting from share listing on international markets
Secure ISAC MIMO systems: exploiting interference with Bayesian Cramér–Rao bound optimization
No full textIn this paper, we present a signaling design for secure integrated sensing and communication (ISAC) systems comprising a dual-functional multi-input multi-output base station that simultaneously communicates with multiple users while detecting targets present in their vicinity, which are regarded as potential eavesdroppers. In particular, assuming that the distribution of each parameter to be estimated is known a priori, we focus on optimizing the targets’ sensing performance. To this end, we derive and minimize the Bayesian Cramér–Rao bound, while ensuring certain communication quality of service by exploiting constructive interference. The latter scheme enforces that the received signals at the eavesdropping targets fall into the destructive region of the signal constellation, to deteriorate their decoding probability, thus enhancing the ISAC’s system physical layer security capability. To tackle the nonconvexity of the formulated problem, a tailored successive convex approximation method is proposed for its efficient solution. Our extensive numerical results verify the effectiveness of the proposed secure ISAC design showing that the proposed algorithm outperforms block-level precoding techniques. © The Author(s) 2025
Risk Management in Electronic Data Transmission
No full textInformation society development is possible using advanced computer infrastructure but also software such systems, particularly the Internet. The content of the work we have addressed some key elements for implementation of risk management in electronic data transmission operations of legal persons and / or individuals using the Internet, from the few elements that disrupt the activities of information such as computer viruses or attacks. An important part presents the necessity and effects of operations on the Internet standardization, the use of digital certificates and electronic signatures by default.risk management, electronic data transmission, computer viruses, electronic signature, digital certificate
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