Self-Reported Executive Functioning in Young Adult Survivors of Childhood Bacterial Meningitis

Objective:This study investigated executive functions (EFs) in young adult survivors of childhood bacterial meningitis (BM). These skills are important for normal development, and their potential vulnerability in early years suggests that childhood BM could affect executive functions in the longer term.Method: The adult self-report Behavior Rating Inventory of Executive Function was administered to 474 young adult survivors of childhood BM who participated in the 20|30 Dutch Postmeningitis study. Average scores were compared to population-norm group scores. Subgroup scores were compared according to causative pathogen and age at onset.Results:Young adult survivors of childhood BM scored lower on overall metacognition than the age-matched population norm group. Young adult survivors of childhood BM caused by Streptococcus pneumoniae, S. agalactiae, or Escherichia coli had lower scores than cases caused by Neisseria meningitidis. Survivors with age-at-onset below 12 months had a higher (worse) overall EF score than survivors with age-at-onset above 12 months.Conclusions:Young adult survivors of childhood BM experience difficulties in EF. However, most of the self-reported EF scores were within the norm. Future studies need to additionally assess EF in adult survivors of childhood BM using performance-based tests

Sedimentary pigment, sterol and stanol data for the Holocene record of Lake Uddelermeer (The Netherlands)

This dataset provides geochemistry data for the Holocene sediment sequence retrieved from Lake Uddelermeer (The Netherlands) in 2012. Concentrations of sedimentary pigments, fossil sterols and stanols as well as elemental (C, N) measurements are presented against both depth (cm) and age (cal yr. BP). A total of 92 samples were analysed for C, N and sedimentary pigment content; a subset of 30 samples was analysed for sterol and stanol compounds. The data provides an insight in the natural variability of the lake ecosystem and has been used to identify the anthropogenic drivers of the change to the turbid conditions that currently characterize this lake. Cores were retrieved from the centre of the lake using a 3-m long handheld piston corer deployed from a floating coring platform during field work in April and May 2012. Samples were obtained from splits of the core and processed in the laboratory of the University of Amsterdam (the Netherlands) using standard protocols, including the use of high performance liquid chromatography (HPLC) to determine sedimentary pigment concentrations and full scan as well as selective ion monitoring (SIM) gas chromatography-mass spectrometry (GC–MS) analysis to determine sterol and stanol concentrations. Name of the Campaign: UDD Event Label: UDD-E Method: Uwitec piston corer Latitude: 52.24652778 Longitude: 5.76097222 Elevation: 24m asl Date/Time of event: 2012-05-01T14:00:00 Further information about event: Lake sediment sequence retrieved using a 60 mm piston corer deployed from a floating platform

Lake Uddelermeer: Late-glacial and Holocene pollen, chironomid & loss-on-ignition data

This dataset provides palaeoecological and sedimentological data for the Late-glacial and Holocene sediment sequence retrieved from Lake Uddelermeer (The Netherlands) in 2012. Counts of pollen and chironomids are presented against both depth (cm) and age (cal yr. BP), and a loss-on ignition record is presented against depth. A total of 110 samples were analysed for their pollen content; a subset of 32 samples was analysed for sterol and stanol compounds. A total of 1412 samples were analysed for their organic content, approximated through loss-on-ignition. The data provides information on changes in the local and regional vegetation, changes in the within-lake ecosystem and changes in minerogenic input into the lake. The dataset has been used to identify Holocene lake level changes at the site. Cores were retrieved from the centre of the lake using a 3-m long handheld piston corer deployed from a floating coring platform during field work in April and May 2012. Samples were obtained from splits of the core and processed in the laboratory of the University of Amsterdam (the Netherlands) using standard protocols. Individual pollen grains and chironomid head capsules were identified using high-power microscopy, and loss-on-ignition was determined using combustion in a 550C oven. Name of the Campaign: UDD Event Label: UDD-E Method: Uwitec piston corer Latitude: 52.24652778 Longitude: 5.76097222 Elevation: 24m asl Date/Time of event: 2012-05-01T14:00:00 Further information about event: Lake sediment sequence retrieved using a 60 mm piston corer deployed from a floating platform. Pollen classification as used by Engels et al. (2016) is provided: TS = Trees and Shrubs Hea = Heathland taxa HI = Upland herbaceous taxa SP = Spore plants SA = Swamp and Aquatic plants Alg = Algae Fun = Fungi Oth = Other (/unclassified