A behavioural and ERP investigation of the wearable camera photo review in autobiographical memory.

Wearable camera photo review has successfully been used to enhance memory, yet very little is known about the underlying mechanisms. Here, the sequential presentation of wearable camera photos - a key feature of wearable camera photo review - is examined using behavioural and EEG measures. Twelve female participants were taken on a walking tour, stopping at a series of predefined targets, while wearing a camera that captured photographs automatically. A sequence of four photos leading to these targets was selected (∼ 200 trials) and together with control photos, these were used in a recognition task one week later. Participants' recognition performance improved with the sequence of photos (measured in hit rates, correct rejections, & sensitivity), revealing for the first time, a positive effect of sequence of photos in wearable camera photo review. This has important implications for understanding the sequential and cumulative effects of cues on episodic remembering. An old-new ERP effect was also observed over visual regions for hits vs. correct rejections, highlighting the importance of visual processing not only for perception but also for the location of activated memory representations.

Measurements of δ13C in CH4 and using particle dispersion modeling to characterize sources of Arctic methane within an air mass.

A stratified air mass enriched in methane (CH4) was sampled at ~600 m to ~2000 m altitude, between the north coast of Norway and Svalbard as part of the Methane in the Arctic: Measurements and Modelling campaign on board the UK's BAe-146-301 Atmospheric Research Aircraft. The approach used here, which combines interpretation of multiple tracers with transport modeling, enables better understanding of the emission sources that contribute to the background mixing ratios of CH4 in the Arctic. Importantly, it allows constraints to be placed on the location and isotopic bulk signature of the emission source(s). Measurements of δ13C in CH4 in whole air samples taken while traversing the air mass identified that the source(s) had a strongly depleted bulk δ13C CH4 isotopic signature of -70 (±2.1)‰. Combined Numerical Atmospheric-dispersion Modeling Environment and inventory analysis indicates that the air mass was recently in the planetary boundary layer over northwest Russia and the Barents Sea, with the likely dominant source of methane being from wetlands in that region.

A controlled trial of parent initiated and conventional preschool health surveillance using personal child health records.

OBJECTIVES: A comparison of parent initiated preschool surveillance, using personal child health records, with the then current system of child health surveillance using child health records. DESIGN: Prospective, controlled trial with randomisation of five general practices into two groups. SETTING: Five general practices, a well baby clinic, and an orthoptic clinic at Yeovil District Hospital. SUBJECTS: 538 babies born between 1 April 1992 and 1 November 1994, from within the five general practices. MAIN OUTCOME MEASURES: The number of screenable abnormalities in the two groups that were missed in the first 3 years of a baby's life. RESULTS: 163 babies from the parent initiated preschool surveillance group and 107 from the conventional group completed the study. Although all the mothers from the parent initiated preschool surveillance group understood the concept of parent initiated surveillance, 117 stated their health visitor had made their appointments. Only 45 mothers made their own appointments. The abnormality rates were: 12 of 163 and eight of 107 at 1 year and nine of 163 and six of 107 at 3 years. No medically important conditions were missed. Most mothers did not want to make their own appointments because it was inconvenient. The system was unpopular with health visitors. CONCLUSION: Parent initiated preschool surveillance is as safe as the current system. Implementing the idea involved a small change in work practice and a large change conceptually for some of the primary health care team. It was not adopted in east Somerset.

Serial measurement of beta2 microglobulin, acute phase reactant proteins and the ESR in non-Hodgkin's lymphomas and chronic lymphocytic leukaemia.

Long-term observation of non-Hodgkin's lymphomas indicates they can be sub-divided into two groups with respect to changes in the plasma proteins. The first group has acute phase reactant proteins raised during active disease and sometimes a raised B2m, whilst in remission the protein profile is normal. The second group is typified by a chronic elevation of B2m and ESR but has normal C-RP levels. Chronic lymphocytic leukaemia usually has a raised B2 m level and normal acute phase proteins, a subset with low B2 m is described.

Biochemical markers in Hodgkin's disease and non-Hodgkin's lymphoma.

Vertical studies indicate that, in general, acute phase reactant proteins (APRP) reflect disease activity in both Hodgkin's disease and non-Hodgkin's lymphoma. Longitudinal studies of the selected APRP profile demonstrate the following: 1. The stable profile is characteristic of remission. 2. Considerable elevation of APRPs coincides with relapsed disease. 3. An unstable profile is a feature of relapsing disease and may give early warning of relapse. 4. Patients responding inadequately to treatment frequently have unstable APRP profiles.

Acute phase reactant proteins in chronic leukaemia.

The levels of haptoglobin, alpha1 antitrypsin and alpha1 acid glycoprotein are moderately raised in chronic leukaemias. In CGL the level of haptoglobin and acid glycoprotein show the highest correlation with cell number, whilst no such correlations occur in CLL or CMML. There does not appear to be a relation between blood lysozyme levels and the levels of antiprotease (alpha1 antitrypsin and alpha2 macroglobulin).