Repetitive negative thinking mediates the relationship between addictive Facebook use and suicide-related outcomes: A longitudinal study

Repetitive negative thinking (RNT) and addictive Facebook use have been shown to be associated with suicide ideation and suicidal behavior. The present longitudinal study aimed to investigate whether the association between addictive Facebook use and suicide-related outcomes is mediated by RNT. Data of 191 German Facebook users (Mage = 26.17, SDage = 6.63) were assessed at two measurement time points over a one-year period (first measurement = T1, second measurement = T2) via online surveys. The significant positive association between addictive Facebook use (T1) and suicide-related outcomes (T2) was significantly mediated by RNT (T1). In contrast, a check test that included RNT (T1) as predictor and addictive Facebook use (T1) as mediator revealed no significant mediation effect. The current results demonstrate that if addictive Facebook use leads to RNT suicide ideation and attempts become likely. Therefore, RNT and addictive Facebook use should be taken into account when assessing individuals for risk of suicide.

Managing BVDV at the herd level part 2

Bovine viral diarrhoea virus (BVDV) is a costly disease and its eradication is the focus of the English voluntary scheme, BVDFree. The process of identifying a farm as negative or not negative is broken down into four stages using ADAM: assess disease risk; define herd status; action plan for BVD control; monitor progress. This process is based on the long-established protocols defined by Cattle Health Certification Standards. The latter two stages are discussed in this article with the first two discussed in part 1 of this series. Initial testing will identify the farm as negative or not negative for BVDV. Herds that are not negative will require further testing, which will often take the form of screening for a persistently infected (PI) animal, or ‘PI hunt’, by testing every animal in the herd either directly or indirectly for the presence of virus. Maintaining and monitoring BVDV status will require ongoing testing, tag and test, or check test at the farmer's choice, and continued attention to biosecurity, especially in negative herds that are not vaccinated.

BVD Stamp It Out initiative

In 2018, Defra announced a project focused on controlling bovine viral diarrhoea (BVD) in the national breeding herd in England. The project has become known as Stamp It Out. Run by SAC Consulting alongside Duchy College, Stamp It Out offers funding through the Rural Development Programme for England (RDPE) for cattle keepers in England to draw up plans to control the disease. The headline target for Stamp It Out is to engage 50% of the breeding herd in England in active BVD control planning; this equates to 911 764 breeding cattle. The overall budget for Stamp It Out is £5.7 million, of which £1.2 million is ring fenced for testing costs. This testing money is split into two available pots: £61.80 per herd to undertake a check test; £440 per SBI number to undertake a persistently infected (PI) animal hunt if check test shows active infection. With delivery having started in August 2018, as of May 2019, the following successes can be reported: 4187 farmers enrolled, 3483 of which have agreed to join BVDFree England, and their details have been sent across.

ASSESSMENT OF RANGES OF POSSIBLE CHANGE OF TEMPORARY RESISTANCE OF CAST IRON WITH LAMELLAR AND FLAKED GRAPHITE ON THEIR HARDNESS

The analysis of ranges of possible change of temporary resistance of sB of castings from ductile and gray cast iron is carried out. The analytical description of ranges of change of sВ depending on casting BH hardness is developed. It is shown that the range of change of sВ of pig-iron castings, wider in comparison with steel, with the measured hardness of BH is caused variations of forms and the amount of graphite inclusions at the considered classes of cast iron and influence of thickness of a wall of casting from gray cast iron on dependence of sВ (HB). The result is intended for determination of the guaranteed casting size sВ without her destruction, when there is no information on sВ of check test pieces.

Development and Evaluation of a Logical Delta Check for Identifying Erroneous Blood Count Results in a Tertiary Care Hospital

Context Delta checks have been suggested to increase patient safety by identifying preanalytic and analytic errors, including wrong name mislabeling on the sample tube. Objective To implement an effective and practical complete blood cell count (CBC) delta check by optimizing specificity and sensitivity using weighted deltas of multiple parameters. Design The mean red blood cell volume (MCV) delta (>3.0 fL) check was retrospectively assessed. The composite CBC delta (CCD) test was formulated using serial same-patient CBC data and random interpatient CBCs. The logical delta check (LDC) ignores CCD failures due to platelet change only. The effect of LDC implementation was evaluated. Results The MCV delta check test recognized only 3 of 6 confessed mislabeled specimens in the initial review period, whereas all were identified using the CCD. The LDC flagged 2% (205 of 13 234) of eligible results, one-third as many as the MCV delta check. The CCD and LDC checks revealed 20 presumed or confirmed mislabeling events, only half of which were caught by the MCV delta check. Thirty-four percent of LDC failures not due to transfusion reflected problematic results, including presumed or confirmed wrongly labeled patient samples (36% of flags for real problems). Implementation of the LDC, requiring immediate verbal feedback to the caregivers, was associated with more retracted erroneous results in patients' medical records. Conclusions The MCV delta check test was found not to have led to correction of errors in our laboratory due to impractically low specificity and sensitivity. The LDC is a useful tool for identifying preanalytic and analytic specimen problems, including wrong name mislabeling on the sample tube.