Solidification under zero gravity: A Long Duration Exposure Facility (LDEF) experiment for an early space shuttle mission

The preliminary design of two series of simple experiments the objectives of which are to determine the effect of an absence of gravity on (1) the general morphology of the structure, (2) location of ullage space, and (3) magnitude of surface tension driven convection, during the solidification of several metallic and nonmetallic systems is described. Details of the investigative approach, experimental procedure, experimental hardware, data reduction and analysis, and anticipated results are given

Design requirements for laminar airflow clean rooms and devices

Laminar airflow and airborne contamination control concepts with clean room specifications and laminar flow facility design

Offender and offence characteristics of school shooting incidents

School shootings are a concern due to their impact in the local community. This paper aimed to (a) establish frequent characteristics of the offender and offence, (b) explore the differences between offenders who are over the age of 18 years and those who are younger, and (c) consider the underlying themes of the offence characteristics. Data were collected on 28 cases through accessing resources such as West Law and case studies. The majority of the offenders were Caucasian and US citizens and suffered from depression. Their offences were primarily well planned, involved more than three deaths, and resulted in the offender committing suicide. Pearson’s chi-square test and Fisher’s exact test identified significant differences between the two age groups. Offenders who were 18 years of age or under were more likely to experience depression, be US citizens and be linked to the school. Additionally, offenders who were 18 years of age or under were more likely to have stolen their weapons and made threats prior to the incident. Smallest space analysis revealed four thematic regions in relation to the offence characteristics: making an impact, delivering a message, doing unrestrained activity, and targeting specific individuals. These findings have implications for risk assessment and furthering understanding. Keywrods : school shooting; juvenile; offence characteristics; multidimensional scaling; school violenc

Neuronal human BACE1 knock-in induces systemic diabetes in mice

Acknowledgements The authors thank S. Tammireddy (Diabetes and Cardiovascular Science, University of the Highlands and Islands, Inverness, UK) for technical support with the lipidomics component. Funding We would like to thank R. Simcox, Romex Oilfield Chemicals, for financial support for KP, and acknowledge additional contributions from the Scottish Alzheimer’s Research UK network for the lipidomics work. The College of Life Science and Medicine, University of Aberdeen, sponsored the imaging study. MD was funded by British Heart Foundation and Diabetes UK; NM was funded by a British Heart Foundation Intermediate Fellowship; KS was funded by a European Foundation for the Study of Diabetes/Lilly programme grant; and RD was funded by an Institute of Medical Sciences PhD studentship.Peer reviewedPublisher PDFPublisher PD

Support for Green Conferences only Lip Service - So what can be done?

Although support for making conferences more green and sustainable have grown over the years, such philanthropic considerations are overshadowed by the hard factors ultimately determining attendance to conferences. These include factors such as time and distance, the nature of the conference, and destination attractiveness. Environmental sustainability of the conference or the venue remains a poor influencing factor. This study therefore examines to what extent various ‘conference green attributes’ or sustainable interventions are related to hard factors and if so determine ways of influencing attendees to be more selective toward green conferences. The study explores this relationship in a sample of German conference attendees, with results indicating support for the status quo but also reveals some potential avenues for changing attendees’ preference for green conferences