A5007958974- Energy Efficient Wireless Sensor Networks
- Social and Educational Sciences
- Real-Time Systems Scheduling
- Microbial Community Ecology and Physiology
- Distributed systems and fault tolerance
- Marine and coastal ecosystems
- Wireless Networks and Protocols
- Mobile Ad Hoc Networks
- Modular Robots and Swarm Intelligence
- Aquatic Ecosystems and Phytoplankton Dynamics
- Bacterial Identification and Susceptibility Testing
- Algal biology and biofuel production
- Petri Nets in System Modeling
- Diatoms and Algae Research
- Context-Aware Activity Recognition Systems
- Genomics and Phylogenetic Studies
- Youth Education and Societal Dynamics
- Environmental DNA in Biodiversity Studies
- Embedded Systems Design Techniques
- Youth Development and Social Support
- Security in Wireless Sensor Networks
- Software Engineering Research
- Homelessness and Social Issues
- Protist diversity and phylogeny
- Environmental Toxicology and Ecotoxicology
University of Gothenburg
2014-2025
Irras (Sweden)
2025
Uppsala University Hospital
2022
Swedish University of Agricultural Sciences
2020
Colorado State University
2018-2019
Polytechnic Institute of Porto
2005-2011
Instituto Superior de Engenharia do Porto
2007
Sahlgrenska University Hospital
2001
Laboratoire de Biochimie
1991
Umeå University
1991
In a prospective study of the etiology pneumonia 196 adult patients were included. One following criteria was required for diagnosis pneumococcal pneumonia: isolation pneumococci from blood; transtracheal aspirate; sputum or nasopharynx detection capsular antigen in combination with significant increase antibodies against at least one (type-specific polysaccharide, C-polysaccharide, pneumolysin); two antigens. Pneumococcal diagnosed 63 (32%). Other diagnoses nonencapsulated Haemophilus...
We propose a wireless medium access control (MAC) protocol that provides static-priority scheduling of messages in guaranteed collision-free manner. Our supports multiple broadcast domains, resolves the hidden node problem and allows for parallel transmissions across mesh network. Arbitration is achieved without notion master coordinating node, global clock synchronization or out-ofband signalling. The relies on bit-dominance similar to what used CAN bus except order operate physical layer,...
We analysed N2 - and carbon (C) fixation in individual cells of Baltic Sea cyanobacteria by combining stable isotope incubations with secondary ion mass spectrometry (SIMS). Specific growth rates based on C-fixation were higher for Dolichospermum spp. than Aphanizomenon sp. Nodularia spumigena. The cyanobacterial biomass, however, was dominated sp., which contributed most to total -fixation surface waters the Northern Proper. Pseudanabaena colonial picocyanobacteria not detectable. N....
Consider the problem of scheduling n sporadic tasks so as to meet deadlines on m identical processors. A task is characterised by its minimum interarrival time and worst-case execution time. Tasks are preemptible may migrate between We propose an algorithm with limited migration, configurable for a utilisation bound 88% few preemptions (and arbitrarily close 100% more preemptions).
ABSTRACT Evolutionary changes in populations of microbes, such as microalgae, cannot be traced using conventional metabarcoding loci they lack intraspecific resolution. Consequently, selection and competition processes among strains the same species resolved without elaborate isolation, culturing, genotyping efforts. Bamboozle, a new bioinformatic tool introduced here, scans entire genome identifies allele‐rich barcodes that enable direct identification different genetic from population...
Nitrogenase activity (NA) in shallow‐water (< 1 m) sediments was investigated at 60 randomly selected sites along a 150 km stretch on the brackish‐water Swedish west coast, without targeting any specific type of sediments, such as microbial mats. Benthic nitrogen (N) fixation and diazotrophs ( nifH genes) were found all sites, regardless presence cyanobacterial or The majority showed N rates between 0.03 mmol m −2 d −1 . These similar to those benthic denitrification previously measured...
Individual cells of cyanobacteria or algae are supplied with light in a highly irregular fashion when grown industrial-scale photobioreactors (PBRs). These conditions coincide significant reductions growth rate compared to the static environments commonly used laboratory experiments. We grew dense culture model cyanobacterium Synechocystis sp. PCC 6803 under sinusoidal regime bench-top PBR (the Phenometrics environmental [ePBR]). developed computational fluid dynamics ePBR, which predicted...
The availability of small inexpensive sensor elements enables the employment large wired or wireless networks for feeding control systems. Unfortunately, need to transmit a number measurements over network negatively affects timing parameters loop. This paper presents solution this problem by representing with an approximate representation-an interpolation as function space coordinates. A priority-based medium access (MAC) protocol is used select messages high information content. Thus, from...
Strains of microalgae vary in traits between species and populations due to adaptation or stochastic processes. Traits individual strains may also depending on the acclimatization state external forces, such as abiotic stress. In this study we tested how metal tolerance differs among marine diatoms at three organizational levels: species, populations, strains. At level compared two pelagic Baltic Sea (Skeletonema marinoi Thalassiosira baltica). We found that between-species differences...
We focus on large-scale and dense deeply embedded systems where, due to the large amount of information generated by all nodes, even simple aggregate computations such as minimum value (MIN) sensor readings become notoriously expensive obtain. Recent research has exploited a dominance-based medium access control(MAC) protocol, CAN bus, for computing aggregated quantities in wired systems. For example, MIN can be computed efficiently an interpolation function which approximates data area...
Bloodstream infections (BSIs), the presence of microorganisms in blood, are potentially serious conditions that can quickly develop into sepsis and life-threatening situations. When assessing proper treatment, rapid diagnosis is key; besides clinical judgement performed by attending physicians, supporting microbiological tests typically performed, often requiring microbial isolation culturing steps, which increases time required for confirming positive cases BSI. The additional waiting...
Abstract Modern equipment facilitates phenotyping of hundreds strains unicellular organisms by culturing and monitoring growth in microplates. However, the field phytoplankton ecology, automated is not often done this method has been tested for many species. To meet demand a high‐throughput technique chain‐forming species, we have assessed optimized commonly used other microorganisms. Skeletonema marinoi pelagic diatom, acquired patterns four different treatments (i.e., low high light,...
Consider the problem of designing an algorithm for acquiring sensor readings. specifically obtaining approximate representation readings where (i) originate from different nodes, (ii) number nodes is very large, (iii) all are deployed in a small area (dense network) and (iv) communicate over communication medium at most one node can transmit time (a single broadcast domain). We present efficient this problem, our novel has two desired properties: it obtains interpolation based on scalable,...
AME Aquatic Microbial Ecology Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsSpecials 77:37-50 (2016) - DOI: https://doi.org/10.3354/ame01785 Response of a coastal tropical pelagic microbial community changing salinity and temperature Gurpreet Kaur-Kahlon1, Sanjeev Kumar2, Ann-Sofi Rehnstam-Holm3, Ashwin Rai4, P. S. Bhavya2, Lars Edler5, Arvind Singh1,2, Björn Andersson1, Indrani Karunasagar4,6,...
Abstract Despite widespread metal pollution of coastal ecosystems, little is known its effect on marine phytoplankton. We designed a co-cultivation experiment to test if toxic dose–response relationships can be used predict the competitive outcome two species under stress. Specifically, we took into account intraspecific strain variation and selection. 72 h model how silver (Ag), cadmium (Cd), copper (Cu) affect both selection competition between taxa in diatoms (Skeletonema marinoi...
Background Molecular radiation biomarkers are an emerging tool in research with applications for cancer radiotherapy, risk assessment, and even human space travel. However, biomarker screening genome-wide expression datasets using conventional tools is time-consuming underlies analyst (human) bias. Machine Learning (ML) methods can improve the sensitivity specificity of identification, increase analytical speed, avoid multicollinearity Aim To develop a resource-efficient ML framework...
Fast and accurate identifications of pathogenic bacteria along with their associated antibiotic resistance proteins are paramount importance for patient treatments public health. To meet this goal from the mass spectrometry aspect, we have augmented previously published Microorganism Classification Identification (MiCId) workflow capability. evaluate performance workflow, used MS/MS datafiles samples 10 bacterial strains belonging to three different species: Escherichia coli, Klebsiella...
Consider the problem of scheduling sporadic message transmission requests with deadlines. For wired channels, this has been achieved successfully using CAN bus. wireless researchers have recently proposed a similar solution; collision-free medium access control (MAC) protocol that implements static-priority scheduling. Unfortunately no implementation reported, yet. We implement and evaluate it to find indeed is prioritized. This allows us develop schedulability analysis for implementation....
The vectored Ebola vaccine rVSVΔG-ZEBOV-GP elicits protection against Virus Disease (EVD). In a study of forty-eight healthy adult volunteers who received either the or placebo, we profiled intracellular microRNAs (miRNAs) from whole blood cells (WB) and circulating miRNAs serum-derived extracellular vesicles (EV) at baseline longitudinally following vaccination. Further, identified early miRNA signatures associated with ZEBOV-specific IgG antibody responses up to one year post-vaccination,...
We propose a schedulability analysis for particular class of time division multiple access (TDMA) networks, which we label as TDMA/SS. SS stands slot skipping, reflecting the fact that is skipped whenever it not used. Hence, next can start earlier in benefit hard real-time traffic. In proposed analysis, assume knowledge all message streams system, and each node schedules messages its output queue according to rate monotonic policy (as an example). present two steps. Firstly, address case...
Distributed real-time systems, such as factory automation require that computer nodes communicate with a known and low bound on the communication delay. This can be achieved traditional time division multiple access (TDMA). But improved flexibility simpler upgrades are possible through use of TDMA slot-skipping (TDMA/SS), meaning slot is skipped whenever it not used consequently after starts earlier. We propose schedulability analysis for TDMA/SS. assume knowledge all message streams in...