Publications by authors named "K Theissen"
Article Synopsis
- Pediatricians noted a significant number of diagnostic errors, with 35% reporting such errors monthly and 33% indicating these errors led to adverse events at least annually.
- The most pressing areas for improvement included missed diagnoses of hypertension, delayed referrals, and follow-up on abnormal lab results.
- Electronic health records (EHRs) were seen as helpful by some pediatricians in reducing specific diagnostic errors, though about 36% felt their EHR did not aid in reducing these errors at all.
Article Synopsis
- Shifts in shallow lakes from clear water to turbid water are often seen as quick changes, but sediment records show these shifts indicate long-term ecological stability shaped by previous big changes.
- Analyzing 11 lakes, findings reveal that historical sediment data suggest all lakes were once stable and clear-water lakes before significant changes occurred, with modern lakes exhibiting clear, turbid, or transitional states.
- Fish introductions have played a primary role in driving these shifts, rather than nutrient increases, and effective lake management strategies could help restore these lakes to clear-water states, though ongoing management will likely be necessary.
Article Synopsis
- * Short-term management strategies, like fish kills, can temporarily shift a turbid lake to a clear state, but these changes are unstable and often revert to turbid conditions within 5-10 years.
- * The regime shift in Lake Christina during the 1950s was driven by factors such as eutrophication from agricultural runoff, increased waterfowl, and dam construction, which collectively entrenched the turbid state despite management efforts.
Article Synopsis
- Researchers studied sediment cores and modern aquatic plants from Lake Christina in Minnesota to understand the lake's ecology before and after human settlement.
- The two sub-basins of the lake showed different responses to environmental changes: the larger western basin was more affected by internal processes, while the smaller eastern basin reflected changes due to external factors, especially from post-settlement land use.
- Evidence indicated an increase in organic carbon and shifts in nitrogen levels linked to agricultural practices, suggesting that human activities have significantly impacted the lake's ecology, especially in the last 50 years through management and chemical treatments that altered its water clarity.
[Sudden cardiac death and immediate defibrillation by trained lay persons].
Dtsch Med Wochenschr
April 1996