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Biomedical subjects

H Hopf

Publications and source records attributed to H Hopf.

22 records · Page 2Linked to original sources
PubMedDate not supplied

Physiology of wound healing.

Wound healing is a complicated process that recruits at least 4 distinct cell types. Though the process is continuous, it is commonly referred to as occurring in "phases." The main phases of wound healing include coagulation, which begins immediately after injury; inflammation, which initiates shortly thereafter; a migratory and proliferative process, which begins within days and includes the major processes of healing; and a remodeling process, which may last for up to a year and is responsible for scar tissue formation and development of new skin. Wound healing is affected by several factors. These include local factors (growth factors, edema and ischemia, low oxygen tension, and infection), regional factors (arterial insufficiency, venous insufficiency, and neuropathy), systemic factors (inadequate perfusion and metabolic disease), and other miscellaneous factors, such as nutritional state, preexisting illnesses, exposure to radiation therapy, and smoking. In general, chronic wounds may be managed by preventing or medically treating infections through debridement and occlusive dressings. For wounds that are unresponsive to such interventions, the use of skin replacements is becoming a viable option. In this regard, a product such as Graftskin (APLIGRAF, Organogenesis Inc, Canton, MA, and Novartis Pharmaceuticals Corporation, East Hanover, NJ), a bilayered living skin construct with allogeneic dermis and epidermis, is a positive development.

Blood Coagulation↗
PubMedDate not supplied

[Viewing of horror and violence videos by adolescence. A study of speech samples of video consumers with the Gottschalk-Gleser Speech Content analysis].

In 1990 pupils of different schools in Württemberg were interviewed about their television and video consumption. It turned out that a high percentage of mainly male pupils of Hauptschulen (upper division of elementary schools) and special schools excessively and regularly consumed films which were on the index (X-rated) or seized depicting horror and violence. Subsequent to the inquiry through questionnaires and different personality tests, speech samples of 51 test persons were recorded on tape. 5 speech samples had to be excluded from further investigation since they contained less than 70 words. The transcribed and anonymized records were examined according to the Gottschalk-Gleser content analysis of verbal behavior, and two groups of so-called seldom lookers (n = 22) and frequent lookers (n = 24) were compared to each other. The frequent lookers significantly often reported about film contents which presumably means that their imagination is more restricted and less productive than that of the other group. In addition, this group of frequent lookers had significantly higher scores concerning death anxiety and guilt anxiety. With regard to hostility affects, their scores were also significantly raised concerning outward-overt hostility, outward-covert hostility, and ambivalent hostility. Probably the group of frequent lookers comprised more test persons with relationship disorders, with borderline risks, dissocial personality features, and problems to cope with their aggressiveness. So they show on the one hand a raised affinity to watch such films, but simultaneously unconscious and conscious learning processes take place which stimulate further aggressive fantasies (and possibly also actions).

Adolescent↗