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With this work we have investigated how the air in the air cylinders of portable breathing apparatuses is heated during work in hot environments equal to those of interior fire extinguishing. The laws, regulations and standards concerning breathing apparatuses have been reviewed. We describe the theoretical relationships between heating and cooling as a result of air outtake and compare these to e

Popular Abstract in English Improving irrigation practices and optimal exploitation of available water resources are vital issues facing water scarcity and similar problems in arid and semiarid countries (e.g., Egypt and Tunisia). In these countries, the use of saline and low quality irrigation water (i.e., brackish irrigation water) is often associated by soil salinization risk and soil degradatiModern irrigation techniques are becoming increasingly important in water-scarce countries especially in arid and semiarid regions. Higher crop production and better water use efficiency are usually achieved by drip irrigation as compared to other irrigation methods. Furthermore, by using drip irrigation simultaneously with brackish irrigation water, some of the water stress due to shortage of fre

The invention of computers revolutionized the way of doing science and in particular the field of mathematics. Computers were faster than any human mind in doing calculations and they did not make mistakes opening a wide range of possibilities that earlier where in practice uncomputable. Scientists observe the behavior of nature and find mathematical equations that model the different phenomena. IThe efficient simulation of thermal interaction between fluids and structures is crucial in the design of many industrial products, e.g. turbine blades or rocket nozzles. The main goal of this work is to present a high order time adaptive multirate parallel partitioned coupled method for the efficient numerical solution of two parabolic problems with strong jumps in the material coefficients that

The Swedish policy response to Covid-19 is exceptional by international comparison. This column explains how the approach is decided by three articles in the Swedish constitution. The first guarantees the freedom of movement for Swedish citizens, ruling out nationwide lockdowns. The second establishes unique independence for public agencies, allowing them to design the policy response to the pande

Urinary tract infections (UTIs) are among the most common infectious diseases in humans, with a subset of sus- ceptible individuals who experience recurrent episodes. e increase in antibiotic resistance in gram-negative uropathogens, due to antibiotic overuse, is a strong rationale for developing therapeutic alternatives and to improve diagnostics. In patients with incomplete bladder emptying (e.g

In radiological diagnostics and therapy, it is important that practitioners, referrers, (i.e. radiologists, radiation oncologists and others in health-care) are aware of how much radiation a patient may receive from the various procedures used and associated health risk. The profession has a duty to inform patients or their representatives of the advantages and disadvantages of specific investigatIn radiological diagnostics and therapy, it is important that practitioners, referrers, (i.e. radiologists, radiation oncologists and others in healthcare) are aware of how much radiation a patient may receive from the various procedures used and associated health risk. The profession has a duty to inform patients or their representatives of the advantages and disadvantages of specific investigati

Muller cells are the principle glia cells of the retina that maintain the integrity and function of the retina and are thought to support and protect neurons during various insults. α2-adrenergic receptor agonists have been shown to be neuroprotective and Mu[[unable to display character: ̈]]ller cells are suggested to take part in these effects. The purpose of this project was to study thMuller cells are the principle glia cells of the retina that maintain the integrity and function of the retina and are thought to support and protect neurons during various insults. α2-adrenergic receptor agonists have been shown to be neuroprotective and Mu[[unable to display character: ̈]]ller cells are suggested to take part in these effects. The purpose of this project was to study th

Using a dislocation simulation approach, the basic equation for a crack perpendicular to a bimaterial interface is formulated in this paper. A novel expansion method is proposed for solving the problem. The complete solution for the problem, including the T stress ahead of the crack tip and the stress intensity factors are presented. The stress field characteristics are analyzed in detail. It is f

Increasingly, scholarly debates and policy developments on citizen participation in energy transitions have included calls for ‘energy democracy’ and active forms of ‘energy citizenship’. The concepts are tightly connected to the debate on energy transition, and the need for a decentralised energy system, based on renewable energy and increased local energy ownership. The two concepts exist in par

In Krisis, and in many of the preparatory papers for his last published work, Edmund Husserl repeatedly declares his allegiance to the Enlightenment, but, at the same time, always expresses his misgivings about its concrete purport. Like Horkheimer and Adorno, but for somewhat different reasons, he thus succumbs to what Ferrone has termed the philosopher’s conception of the Enlightenment, as oppos

This essay explores the lived experiences of parents of children with neurodevelopmental disabilities in relation to institutional interactions. Using a narrative inquiry approach (Clandinin & Connelly, 2000), 13 semi-structured interviews were conducted and analysed to investigate emotional and moral dimensions of the participants' stories. Drawing on Kittays (1999) ethic of care, the