66 research outputs found
Exploring cybersecurity-related emotions and finding that they are challenging to measure
This paper reports on a three-part investigation into peopleâs perceptions of cybersecurity, based on their lived experiences. We sought thereby to reveal issues located within the Johari gridâs âBlind Spotâ quadrant. We utilized research methodologies from both the Arts and Science in order firstly to identify blind spot issues, and secondly to explore their dimensions. Our investigation confirmed a number of aspects that we were indeed aware of, when it came to peopleâs lived cybersecurity experiences. We also identified one particular blind spot issue: widespread, but not universal, negativity towards cybersecurity. We then carried out an investigation using a recognized methodology from psychology, as a first attempt to assess the nature of this negativity and to get a sense of its roots. What our initial experiment revealed was that scoping cybersecurity-related emotions is nontrivial and will require the formulation of new measurement tools. We conclude by reporting on the challenges, to inform researchers who plan to extend the research reported in this paper
A method to reconstruct flood scenarios using field interviews and hydrodynamic modelling: application to the 2017 Suleja and Tafa, Nigeria flood
Abstract
The scarcity of model input and calibration data has limited efforts in reconstructing scenarios
of past floods in many regions globally. Recently, the number of studies that use
distributed post-flood observation data collected throughout flood-affected communities
(e.g. face-to-face interviews) are increasing. However, a systematic method that applies
such data for hydrodynamic modelling of past floods in locations without hydrological is
lacking. In this study, we developed a method for reconstructing plausible scenarios of past
flood events in data-scarce regions by applying flood observation data collected through
field interviews to a hydrodynamic model (CAESAR-Lisflood). We tested the method
using 300 spatially distributed flood depths and duration data collected using questionnaires
on five river reaches after the 2017 flood event in Suleja and Tafa region, Nigeria.
A stepwise process that aims to minimize the error between modelled and observed flood
depth and duration at the locations of interviewed households was implemented. Results
from the reconstructed flood depth scenario produced an error of ± 0.61 m for all observed
and modelled locations and lie in the range of error produced by studies using comparable
hydrodynamic models. The study demonstrates the potential of utilizing interview data
for hydrodynamic modelling applications in data-scarce regions to support regional flood
risk assessment. Furthermore, the method can provide flow depths and durations at houses
without observations, which is useful input data for physical vulnerability assessment to
complement disaster risk reduction efforts
Human isotypeâdependent inhibitory antibody responses against Mycobacterium tuberculosis
Accumulating evidence from experimental animal models suggests that antibodies
play a protective role against tuberculosis (TB). However, little is known
about the antibodies generated upon Mycobacterium tuberculosis (MTB) exposure
in humans. Here, we performed a molecular and functional characterization of
the human Bâcell response to MTB by generating recombinant monoclonal
antibodies from single isolated B cells of untreated adult patients with acute
pulmonary TB and from MTBâexposed healthcare workers. The data suggest that
the acute plasmablast response to MTB originates from reactivated memory B
cells and indicates a mucosal origin. Through functional analyses, we
identified MTB inhibitory antibodies against mycobacterial antigens including
virulence factors that play important roles in host cell infection. The
inhibitory activity of antiâMTB antibodies was directly linked to their
isotype. Monoclonal as well as purified serum IgA antibodies showed MTB
blocking activity independently of Fc alpha receptor expression, whereas IgG
antibodies promoted the host cell infection. Together, the data provide
molecular insights into the human antibody response to MTB and may thereby
facilitate the design of protective vaccination strategies
How to handle the Sympathetic Nervous System
Zimmermann E, Vobejda C, SchĂŒrmann C, Wienecke E. How to handle the Sympathetic Nervous System. Presented at the XXV FIMS World Congress, Athen
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