De werkvloer van een Kennisnetwerk Vitaal Platteland; Kennis maken met regionale kennisarrangementen

Op welke wijze kan het samen leren doen bij gebiedsontwikkeling worden ondersteund en wat kan een landelijk kennisnetwerk vitaal platteland daaraan toevoegen? Dit was het vertrekpunt voor een aantal werkbezoeken van de werkgroep kennisnetwerk vitaal platteland aan enkele regionale kennisarrangementen als onderdeel van een gezamenlijk leertraject. Dit verslag presenteert de bevindingen en komt met aanbevelingen voor een kennisnetwerk vitaal in wording. What support can be provided to joint learning in area development and what can a national knowledge network for a vital countryside add? This was the starting point for visits to various regional knowledge arrangements by the work group involved in the knowledge network for a vital countryside project as part of a joint learning programme. This report presents the findings and presents recommendations for a vital knowledge network for a vital countryside in the making

Use of Dynamic Risk Instruments to Assess Sexual Violence Risk in a Community-Supervised Sample of Men with Sexual Offense Convictions

The present study examined the predictive validity and psychometric properties of several actuarial risk measures developed to estimate likelihood of sexual recidivism, and one protective factor measure developed to assess protective factors related to desistance from sexual offending. Each of Static-99R (Helmus et al., 2012), Violence Risk Scale - Sexual Offense Version (VRS-SO; Wong et al., 2003-2017), STABLE-2007 (Hanson et al., 2007), Sex Offender Treatment Intervention Progress Scale (SOTIPS; McGrath et al., 2012), and Structured Assessment of Protective Factors for Violence Risk- Sexual Offence version (SAPROF-SO; Willis et al., 2017-2020) was rated based on file information of 200 community-supervised men with sexual offense convictions who were court mandated to receive assessments (and often treatment) at an outpatient forensic clinic in Edmonton, Alberta. Recidivism information was available for 172 men; mean follow-up time was 8.6 years. Nine percent of the sample was charged or convicted of a new sexual offense, 18.5% for any new violent (including sexual) charge or conviction, and 33% for any new charge or conviction. Predictive validity for all tools was obtained with respect to sexual, violent (including sexual), and general recidivism. All measures significantly predicted sexual (AUC = .65- .72) recidivism and dynamic measures were sometimes incremental to static measures in the prediction of sexual recidivism, depending on the pairing of predictors. An exploration of the structural properties of the VRS-SO dynamic items revealed a three-factor solution isomorphic to previous research (Olver et al., 2007; Olver & Eher, 2019). Further discrimination and calibration findings will be discussed, including implications for assessment and treatment of men convicted of sexual offenses

Multiphoton Coincidence Spectroscopy

We extend the analysis of photon coincidence spectroscopy beyond bichromatic excitation and two-photon coincidence detection to include multichromatic excitation and multiphoton coincidence detection. Trichromatic excitation and three-photon coincidence spectroscopy are studied in detail, and we identify an observable signature of a triple resonance in an atom-cavity system.Comment: 6 page, REVTeXs, 6 Postscript figures. The abstract appeared in the Proceedings of ACOLS9

Quantum nonlocality and applications in quantum-information processing of hybrid entangled states

The hybrid entangled states generated, e.g., in a trapped-ion or atom-cavity system, have exactly one ebit of entanglement, but are not maximally entangled. We demonstrate this by showing that they violate, but in general do not maximally violate, Bell's inequality due to Clauser, Horne, Shimony and Holt. These states are interesting in that they exhibit the entanglement between two distinct degrees of freedom (one is discrete and another is continuous). We then demonstrate these entangled states as a valuable resource in quantum information processing including quantum teleportation, entanglement swapping and quantum computation with "parity qubits". Our work establishes an interesting link between quantum information protocols of discrete and continuous variables.Comment: 5 pages, no figur

Nonclassical Fields and the Nonlinear Interferometer

We demonstrate several new results for the nonlinear interferometer, which emerge from a formalism which describes in an elegant way the output field of the nonlinear interferometer as two-mode entangled coherent states. We clarify the relationship between squeezing and entangled coherent states, since a weak nonlinear evolution produces a squeezed output, while a strong nonlinear evolution produces a two-mode, two-state entangled coherent state. In between these two extremes exist superpositions of two-mode coherent states manifesting varying degrees of entanglement for arbitrary values of the nonlinearity. The cardinality of the basis set of the entangled coherent states is finite when the ratio $\chi / \pi$ is rational, where $\chi$ is the nonlinear strength. We also show that entangled coherent states can be produced from product coherent states via a nonlinear medium without the need for the interferometric configuration. This provides an important experimental simplification in the process of creating entangled coherent states.Comment: 21 pages, 2 figure