User profiles for H. Johansen

Helle Krogh Johansen

- Verified email at biosustain.dtu.dk - Cited by 19786

Håvard Dagenborg

- Håvard D. Johansen - Verified email at uit.no - Cited by 4702

Hans Johansen

- Verified email at lbl.gov - Cited by 1685

The clinical impact of bacterial biofilms

N Høiby, O Ciofu, HK Johansen, Z Song… - International journal of …, 2011 - nature.com
Bacteria survive in nature by forming biofilms on surfaces and probably most, if not all,
bacteria (and fungi) are capable of forming biofilms. A biofilm is a structured consortium of …

Adaptation of Pseudomonas aeruginosa to the cystic fibrosis airway: an evolutionary perspective

A Folkesson, L Jelsbak, L Yang, HK Johansen… - Nature Reviews …, 2012 - nature.com
The airways of patients with cystic fibrosis (CF) are nearly always infected with many different
microorganisms. This environment offers warm, humid and nutrient-rich conditions, but is …

Biofilms in chronic infections–a matter of opportunity–monospecies biofilms in multispecies infections

…, K Kirketerp-Møller, HK Johansen… - FEMS Immunology & …, 2010 - academic.oup.com
It has become evident that aggregation or biofilm formation is an important survival
mechanism for bacteria in almost any environment. In this review, we summarize recent …

Bacillus anthracis, Bacillus cereus, and Bacillus thuringiensis—One Species on the Basis of Genetic Evidence

…, OA Økstad, DA Caugant, HA Johansen… - Applied and …, 2000 - Am Soc Microbiol
Bacillus anthracis, Bacillus cereus, andBacillus thuringiensis are members of the Bacillus
cereus group of bacteria, demonstrating widely different phenotypes and pathological effects. B…

Kvasir-seg: A segmented polyp dataset

…, T De Lange, D Johansen, HD Johansen - … Conference, MMM 2020 …, 2020 - Springer
Pixel-wise image segmentation is a highly demanding task in medical-image analysis. In
practice, it is difficult to find annotated medical images with corresponding segmentation masks…

Resunet++: An advanced architecture for medical image segmentation

…, PH Smedsrud, MA Riegler, D Johansen… - … on multimedia (ISM), 2019 - ieeexplore.ieee.org
Accurate computer-aided polyp detection and segmentation during colonoscopy examinations
can help endoscopists resect abnormal tissue and thereby decrease chances of polyps …

Doubleu-net: A deep convolutional neural network for medical image segmentation

D Jha, MA Riegler, D Johansen… - 2020 IEEE 33rd …, 2020 - ieeexplore.ieee.org
… Schroff, and H. Adam, “Rethinking atrous convolution for semantic image segmentation,” …
Halvorsen, and HD Johansen, “Resunet++: An advanced architecture for medical image …

Hypertension prevalence, awareness, treatment and control in national surveys from England, the USA and Canada, and correlation with stroke and ischaemic heart …

…, F Loustalot, N Poulter, FA McAlister, H Johansen… - BMJ open, 2013 - bmjopen.bmj.com
Objective Comparison of recent national survey data on prevalence, awareness, treatment
and control of hypertension in England, the USA and Canada, and correlation of these …

A Cartesian grid embedded boundary method for Poisson's equation on irregular domains

H Johansen, P Colella - Journal of Computational Physics, 1998 - Elsevier
We present a numerical method for solving Poisson's equation, with variable coefficients
and Dirichlet boundary conditions, on two-dimensional regions. The approach uses a finite-…

Tolerance to the antimicrobial peptide colistin in Pseudomonas aeruginosa biofilms is linked to metabolically active cells, and depends on the pmr and mexAB‐oprM …

SJ Pamp, M Gjermansen, HK Johansen… - Molecular …, 2008 - Wiley Online Library
… Already after 4 h of exposure to colistin, some cells within the upper layer of the biofilm were
killed, and within 13 h of exposure almost all cells of the biofilm were eradicated (Fig. 6). To …