Platelet-rich plasma treatment for chronic wounds: A case report and literature review.

Background: Wound healing is a complicated process that can be heavily influenced by patient comorbidities, in some cases leading to a chronic non-healing wound. Evidence presented in the medical literature supporting the clinical use of autologous platelet-rich plasma (PRP) in treatment of such wounds is becoming increasingly compelling. Mechanisms involved include complex interactions between the patient's thrombocytes, cytokines, and growth factors.

Drop Weight Testing of Samples Made of Different Building Materials Designed for the Protection of Classified Information.

Classified information is information of vital importance to the State, which must be protected against disclosure, misuse, damage, unauthorized reproduction, destruction, loss or theft in the interest of the State. At present, there are four levels of classification. For each classification level, precise requirements are laid down for the material of the walls, partitions and ceilings of the rooms in which classified information is stored.

New Possibilities for Testing the Service Life of Magnetic Contacts.

Magnetic contacts we could define as a switching device used in transport structures such as a tunnel, to which the manufacturer prescribes a certain number of closures within its lifetime, during which they should operate flawlessly. Verification of the data provided by the manufacturer is time-consuming and physically demanding due to the data being large in number. For this reason, we developed a test device using torque in the research of magnetic contacts, which greatly automates the whole process and thus eliminates human error.

Influence of the Environment on the Reliability of Security Magnetic Contacts.

Magnetic contacts are one of the basic components of an alarm system, providing access to buildings, especially windows and doors. From long-term reliability tests, it can be concluded that magnetic contacts show sufficient reliability. Due to global warming, we can measure high as well as low ambient temperatures in the vicinity of magnetic contacts, which can directly affect their reliability.