According to a research, sclerosants in microfoam are the treatment of choice for ulcers of varicose origin. The study brings together the results of more than ten years of monitoring 116 patients affected by varicose ulcers being treated in Granada, Pamplona and Madrid. On comparing these with data from other novel therapies, it was shown that sclerotherapy with microfoam provided a more rapid and permanent healing with less complications.
Ulcers on the legs are chronic lesions that can be very painful and crippling for patients, and which are thus frequently reflected in medical certificates for inability to work. Of these ulcers, those with a varicose origin are the most frequent, reaching 80% of the total. The rest are of arterial and neurological origin. One of the clinical treatments for varicose ulcers of the leg is the compression bandage together with the use of new poultices, which favour healing but, on not dealing with the underlying cause, the problem resurfaces with time.
Varicose ulcers have their origin in venous hypertension, the result of varices or venous insufficiency in the patient. Treatment of this high blood pressure used to be dealt with surgically, either with open surgery - which is aggressive -, or by means of subfascial endoscopic surgery which, although a newer technique, has certain limitations such as, for example, access to the veins of the ankles, where 30% of ulcers occur. The microfoam offers the advantage of treating the venous hypertension in a less intrusive form, and so is the ideal therapeutic alternative for varicose ulcers.
Garazi Andonegi | alfa
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Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.
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At TU Wien, an alternative for resource intensive formwork for the construction of concrete domes was developed. It is now used in a test dome for the Austrian Federal Railways Infrastructure (ÖBB Infrastruktur).
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Many pathogens use certain sugar compounds from their host to help conceal themselves against the immune system. Scientists at the University of Bonn have now, in cooperation with researchers at the University of York in the United Kingdom, analyzed the dynamics of a bacterial molecule that is involved in this process. They demonstrate that the protein grabs onto the sugar molecule with a Pac Man-like chewing motion and holds it until it can be used. Their results could help design therapeutics that could make the protein poorer at grabbing and holding and hence compromise the pathogen in the host. The study has now been published in “Biophysical Journal”.
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Fiber-reinforced plastics (FRP) are frequently used in the aeronautic and automobile industry. However, the repair of workpieces made of these composite materials is often less profitable than exchanging the part. In order to increase the lifetime of FRP parts and to make them more eco-efficient, the Laser Zentrum Hannover e.V. (LZH) and the Apodius GmbH want to combine a new measuring device for fiber layer orientation with an innovative laser-based repair process.
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