De invloed van koper, ijzer en mangaan bij het ontstaan van koelhuisgebreken van boter

It was found that the natural copper content of milk was high during the first weeks of lactation (up to 150 mμg/kg) after it had been low during the first days after calving. In about one or two months the copper content went down to the normal level of about 20-40 mμg/kg.The development of cold-storage defects of butter was not influenced by the natural copper content of milk. The addition of minute quantities of copper salts to the milk (e.g. 20 mμg/kg) caused pronounced oxidation defects in the resulting butter during storage. No effect resulted from addition of iron or manganese, nor did these metals interact with copper.In the manufacture of butter with good keeping quality, avoiding any contamination with copper appeared to be essential.</p

Drying colloidal systems: laboratory models for a wide range of applications

The drying of complex fluids provides a powerful insight into phenomena that take place on time and length scales not normally accessible. An important feature of complex fluids, colloidal dispersions and polymer solutions is their high sensitivity to weak external actions. Thus, the drying of complex fluids involves a large number of physical and chemical processes. The scope of this review is the capacity to tune such systems to reproduce and explore specific properties in a physics laboratory. A wide variety of systems are presented, ranging from functional coatings, food science, cosmetology, medical diagnostics and forensics to geophysics and art

De invloed van koper, ijzer en mangaan bij het ontstaan van koelhuisgebreken van boter

It was found that the natural copper content of milk was high during the first weeks of lactation (up to 150 mμg/kg) after it had been low during the first days after calving. In about one or two months the copper content went down to the normal level of about 20-40 mμg/kg.The development of cold-storage defects of butter was not influenced by the natural copper content of milk. The addition of minute quantities of copper salts to the milk (e.g. 20 mμg/kg) caused pronounced oxidation defects in the resulting butter during storage. No effect resulted from addition of iron or manganese, nor did these metals interact with copper.In the manufacture of butter with good keeping quality, avoiding any contamination with copper appeared to be essential

Kardiovaskuläre MRT: akute Myokarditis und myokardiale Mitbeteiligung bei Systemerkrankungen

Die kardiovaskuläre Magnetresonanztomografie (CMR) zeichnet sich als Bildgebungsmodalität zur nicht invasiven Myokarddifferenzierung aus. Myokarditiden zählen zu den wichtigsten Indikationen. Der folgende Beitrag zeigt, welche Möglichkeiten und Techniken die CMR zur Detektion einer akuten Myokarditis bietet, wie diese angewandt und ausgewertet werden und welche Fallstricke es gibt

Predictors of major atrial fibrillation endpoints in the National Heart, Lung, and Blood Institute HCMR

OBJECTIVES: This study sought to identify predictors of major clinically important atrial fibrillation endpoints in hypertrophic cardiomyopathy. BACKGROUND: Atrial fibrillation (AF) is a common morbidity associated with hypertrophic cardiomyopathy (HCM). The HCMR (Hypertrophic Cardiomyopathy Registry) trial is a prospective natural history study of 2,755 patients with HCM with comprehensive phenotyping. METHODS: All patients received yearly telephone follow-up. Major AF endpoints were defined as requiring electrical cardioversion, catheter ablation, hospitalization for >24 h, or clinical decisions to accept permanent AF. Penalized regression via elastic-net methodology identified the most important predictors of major AF endpoints from 46 variables. This was applied to 10 datasets, and the variables were ranked. Predictors that appeared in all 10 sets were then used in a Cox model for competing risks and analyzed as time to first event. RESULTS: Data from 2,631 (95.5%) patients were available for analysis after exclusions. A total of 127 major AF endpoints events occurred in 96 patients over 33.3 ± 12.4 months. In the final model, age, body mass index (BMI), left atrial (LA) volume index, LA contractile percent (active contraction), moderate or severe mitral regurgitation (MR), and history of arrhythmia the most important. BMI, LA volume index, and LA contractile percent were age-dependent. Obesity was a stronger risk factor in younger patients. Increased LA volume, reduced LA contractile percent, and moderate or severe MR put middle-aged and older adult patients at increased risk. CONCLUSIONS: The major predictors of major AF endpoints in HCM include older age, high BMI, moderate or severe MR, history of arrhythmia, increased LA volume, and reduced LA contractile percent. Prospective testing of a risk score based on these parameters may be warranted