The space-time budget method in criminological research

This article reviews the Space-Time Budget method developed by Wikström and colleagues and particularly discusses its relevance for criminological research. The Space-Time Budget method is a data collection instrument aimed at recording, retrospectively, on an hour-by-hour basis, the whereabouts and activities of respondents during four days in the week before the interview. The method includes items about criminologically relevant events, such as offending and victimization. We demonstrate that the method can be very useful in criminology, because it enables the study of situational causes of crime and victimization, because it enables detailed measurement of theoretical concepts such as individual lifestyles and individual routine activities, and because it enables the study of adolescents’ whereabouts, which extends the traditional focus on residential neighborhoods. The present article provides the historical background of the method, explains how the method can be applied, presents validation results based on data from 843 secondary school students in the Netherlands and describes the methods’ strengths and weaknesses. Two case studies are summarized to illustrate the usefulness of the method in criminological research. The article concludes with some anticipated future developments and recommendations on further readings

Mesoscopic order and the dimentionality of long-range resonance energy transfer in supramolecular semiconductors

We present time-resolved photoluminescence measurements on two series of oligo-p-phenylenevinylene materials that self-assemble into supramolecular nanostructures with thermotropic reversibility in dodecane. One set of derivatives form chiral, helical stacks while the second set form less organised, frustrated stacks. Here we study the effects of supramolecular organisation on the resonance energy transfer rates. We measure these rates in nanoassemblies formed with mixed blends of oligomers and compare them with the rates predicted by Foerster theory. Our results and analysis show that control of supramolecular order in the nanometre lengthscale has a dominant effect on the efficiency and dimentionality of resonance energy transfer.Comment: 17 Pages, 5 Figures, Submitted to J. Chem. Phy

Whose national emergency? Caboolture and Kirribili? or Milikapiti and Mutitjulu?

Keynote Address - Ms Marion Scrymgour MLA Member for Arafura, Northern Territory Government. Other Speakers - Professor Gavin Brown AO FAA, Vice-Chancellor and Principal, University of Sydney; Mr Neville Perkins OAM, Master of Ceremonies; Mr Charles Madden, Welcome to country; Ms Michelle Blanchard, Acting Director, Koori Centre; Mr Nicholas Beeton, Ms Kerry Wallace-Massone, Ms Jade Swan Prize winners, Dr Charles Perkins AO Annual Memorial Prize

(E)-3-(2,3,4,5,6-Penta­fluoro­styr­yl)thio­phene

The reaction of thio­phene-3-carboxaldehyde and perfluoro­benzyl­triphenyl­phospho­nium bromide in the presence of sodium hydride gave the title compound, C12H5F5S, in 70% yield. The thiophene and perfluorophenyl groups form a dihedral angle of 5.4 (2)°. The structure is characterized by a head-to-tail organization in a columnar arrangement due to π–π inter­actions between the thio­phene and penta­fluoro­phenyl rings with centroid–centroid distances in the range 3.698 (2)–3.802 (2) Å

Synthesis and in vitro evaluation of a multifunctional and surface-switchable nanoemulsion platform

We present a multifunctional nanoparticle platform that has targeting moieties shielded by a matrix metalloproteinase-2 (MMP2) cleavable PEG coating. Upon incubation with MMP2 this surface-switchable coating is removed and the targeting ligands become available for binding. The concept was evaluated in vitro using biotin and αvβ3-integrin-specific RGD-peptide functionalized nanoparticles.National Heart, Lung, and Blood InstituteNational Institutes of Health (U.S.) (Program of Excellence in Nanotechnology (PEN) Award Contract HHSN268201000045C