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showing 10 items of 2715 documents
Estimation of the Time-Variant Velocity of a Single Walking Person in Two-Dimensional Non-Stationary Indoor Environments Using Radio-Frequency Techni…
2020
Accurate estimation of the time-variant (TV) velocity of moving persons/objects in indoor spaces is of crucial importance for numerous wireless indoor applications. This article introduces a novel iterative procedure to estimate the TV velocity, i.e., TV speed and TV angle-of-motion (AOM), of a single moving person in 2D indoor environments by using radio-frequency (RF) techniques. The indoor area is equipped with a distributed 2 × 2 multiple-input multiple-output (MIMO) system. The proposed method is divided into two parts. In the first part, we estimate the path gains and the instantaneous Doppler frequencies by fitting the exact spectrograms of the complex channel gains of a 2D no…
Hvilke faktorer påvirker IPLOS registreringen i primærhelsetjeneste?
2019
Masteroppgave helse- og sosialinformatikk HSI500 - Universitetet i Agder 2019 Background: According to the «Regulations on pseudonymous register for individual health and care statistics»the municipality sector commits itself to registertheir services and patients in the municipalities. Based on this, a registration system was developed which is integrated into the EPR systems used in the municipal sectors. IPLOS is the registry where all data is collected and used for statistics and distribution of earmarked funds. Reporting to the IPLOS registry is an imposed task that can pose a number of challenges for the health personnel who perform the registrations.Purpose:The purpose of the assignm…
Er sluttbrukere forberedt på elektronisk kurve? : Sluttbrukeres erfaring med opplæring i elektronisk kurve og medikasjon
2019
Masteroppgave helse- og sosialinformatikk HSI500 - Universitetet i Agder 2019 BackgroundAs part of the digitalisation of health Norway, a newdigital system is introduced for the documentation of clinical protocolsand medication throughout the Helse Sør-ØstRHF. The system MetaVision replaces today's paper solutions and a few cases of other electronic systems on all health establishments. In that context, there are thousands of employees who needs to be trained. While large sums of money are being used on clinical-ICT in health care, there is little evidence of what works and what doesn't work when it comes to training. The purpose of the project is to look at this. The following issue is the…
Stationary, Second Use Battery Energy Storage Systems and Their Applications: A Research Review
2021
The global demand for electricity is rising due to the increased electrification of multiple sectors of economic activity and an increased focus on sustainable consumption. Simultaneously, the share of cleaner electricity generated by transient, renewable sources such as wind and solar energy is increasing. This has made additional buffer capacities for electrical grids necessary. Battery energy storage systems have been investigated as storage solutions due to their responsiveness, efficiency, and scalability. Storage systems based on the second use of discarded electric vehicle batteries have been identified as cost-efficient and sustainable alternatives to first use battery storage syste…
Kan mobile applikasjoner bidra til livsstilsendring? : en kvalitativ studie av treningsapplikasjonen Styrk!
2016
Masteroppgave i helse- og sosialinformatikk- Universitetet i Agder, 2016 Smartphones and mobile applications has gradually become an integrated part of everyday life for many people. There are applications for most areas of life, and an increasing amount of new apps are related to health and fitness. At the same time the developed countries of the world, including Norway, struggles within activity and the health problems that comes with it. It is a fact that most non-communicable diseases are related to inactivity, and increasing the level of physical activity among the population is important for prevention of these diseases. For those already affected by a noncomunicable disease a change …
Dipeptidyl Enoates As Potent Rhodesain Inhibitors That Display a Dual Mode of Action
2015
Dipeptidyl enoates were prepared through a high-yielding two-step synthetic route. They have a dipeptidic structure with a 4-oxoenoate moiety as a warhead with multiple reactive sites. Dipeptidyl enoates were screened against rhodesain and human cathepsins B and L, and were found to be potent and selective inhibitors of rhodesain. Among them (S,E)-ethyl 5-((S)-2-{[(benzyloxy)carbonyl]amino}-3-phenylpropanamido)-7-methyl-4-oxooct-2-enoate (6) was the most potent, with an IC50 value of 16.4 nm and kinact/Ki=1.6×106 m−1 s−1 against rhodesain. These dipeptidyl enoates display a reversible mode of inhibition at very low concentrations and an irreversible mode at higher concentrations. Inhibition…
A Computationally Efficient Online/Offline Signature Scheme for Underwater Wireless Sensor Networks
2022
Underwater wireless sensor networks (UWSNs) have emerged as the most widely used wireless network infrastructure in many applications. Sensing nodes are frequently deployed in hostile aquatic environments in order to collect data on resources that are severely limited in terms of transmission time and bandwidth. Since underwater information is very sensitive and unique, the authentication of users is very important to access the data and information. UWSNs have unique communication and computation needs that are not met by the existing digital signature techniques. As a result, a lightweight signature scheme is required to meet the communication and computation requirements. In this researc…
IEA EBC Annex83 Positive Energy Districts
2021
At a global level, the need for energy efficiency and an increased share of renewable energy sources is evident, as is the crucial role of cities due to the rapid urbanization rate. As a consequence of this, the research work related to Positive Energy Districts (PED) has accelerated in recent years. A common shared definition, as well as technological approaches or methodological issues related to PEDs are still unclear in this development and a global scientific discussion is needed. The International Energy Agency’s Energy in Buildings and Communities Programme (IEA EBC) Annex 83 is the main platform for this international scientific debate and research. This paper describes the challeng…
Antibacterial activity and cytotoxicity of selected Egyptian medicinal plants.
2011
Medicinal plants have been used as a source of remedies since ancient times in Egypt. The present study was designed to investigate the antibacterial activity and the cytotoxicity of the organic extracts from 16 selected medicinal plants of Egypt. The study was also extended to the isolation of the antiproliferative compound jaeschkeanadiol p-hydroxybenzoate (FH-25) from Ferula hermonis. The microbroth dilution was used to determine the minimal inhibitory concentration (MIC) of the samples against twelve bacterial strains belonging to four species, Providencia stuartii, Pseudomonas aeruginosa, Klebsiella pneumoniae, and Escherichia coli, while a resazurin assay was used to assess the cytoto…
Meme marketing: How marketers can drive better engagement using viral memes?
2022
Scholars and industry stakeholders have exhibited an interest in identifying the underlying dimensions of viral memes. However, the recipe for creating a viral meme remains obscure. This study makes a phenomenological contribution by examining viral memes, exploring the antecedents (i.e., content-related factors, customer-related factors, and media-related factors), consequences, and moderating factors using a mixed-method approach. The study presents a holistic framework for creating viral memes based on the perceptions of customers and industry stakeholders. Four quantitative studies (i.e., a lab experiment, an online quasi-experiment, an event study, and a brand recall study) validate th…