An alternative approach for compliance testing of food and skin contact silicone elastomers by specific determination of volatile cyclic siloxane oligomers via GC-FID.

To date, silicone elastomers intended for food and skin contact are considered compliant as long as their weight loss during a thermal treatment (200 °C, 4 h) is below 0.5 wt%. The common assumption is that this weight loss is caused almost entirely by potentially harmful volatile siloxane oligomers.

Use of Electronic Cigarettes as a Predictor of Cannabis Experimentation: A Longitudinal Study Among German Youth.

Introduction: Experimentation with e-cigarettes is rising among youth, and there are concerns that e-cigarettes could be a new risk factor for initiating substance use. This study aimed to investigate whether e-cigarette use longitudinally predicts experimentation with cannabis.

Aims And Methods: During 2017-2019, a prospective cohort study with an observation period of 18 months was conducted with 3040 students from Germany who had never used cannabis (mean age = 14.

The Effect of Hunger and Satiety on Mood-Related Food Craving.

In addition to hunger, which results from food deprivation, fasting, or restrained eating, food craving is thought to be one of the major factors influencing eating behavior. Although food craving occurs in healthy humans with normal eating behavior, research suggests pronounced food craving to be a risk factor for binging food, which in turn might cause weight gain and obesity. In addition, negative mood seems to induce binge eating, although the underlying processes are not clearly understood.

[Predictors and Effects of Cannabis-Related Legal Investigations].

Background And Objective: In 2018, 218,660 cases of cannabis-related legal investigations were registered by the German police. In the present study, predictors and effects of cannabis-related legal investigations are investigated.

Methods: Retrospective cohort study with 10,432 subjects between 15 and 46 years of age (M=22.

[Risk factors for risky cannabis use : A retrospective cohort study of 7671 cannabis users].

Background: Cannabis use is widespread in Germany. So far little is known about which factors are predictive for the development of risky cannabis use.

Methods: A retrospective cohort study was conducted.

Cessation of cannabis use: A retrospective cohort study.

Given recent findings of a worldwide increase in cannabis use, a better understanding of the factors associated with cannabis use is needed. Most previous studies have focused on factors that predict the initiation of cannabis use, but less is known about factors associated with cessation. The present study is a retrospective cohort study of 6467 current or former cannabis users aged 15 to 46 years (mean age 22.

The endocrine phenotype in silver-russell syndrome is defined by the underlying epigenetic alteration.

Context: Around 50% of children with Silver-Russell syndrome (SRS) carry a hypomethylation of the imprinting control region 1 at the IGF2/H19 locus on 11p15, the functional significance of which is unknown.

Objective: We aimed to compare the genotype in SRS with the endocrine phenotype.

Design: The retrospective study included all SRS children who were treated during the last 18 yr at our hospital and for comparison a cohort of GH treated nonsyndromic short children born small for gestational age (SGA).