The recording, reporting, and use of school attendance data by school personnel in The Netherlands: toe the line or take a new path?

Research signals the importance of promptly identifying and responding to emerging absenteeism, to prevent severe and chronic absenteeism. Prompt identification and response relies upon a good system for recording, reporting, and using data related to students’ school attendance and absence. The current article provides an overview of law, policy, and practice in the Netherlands regarding the recording, reporting, and use of school attendance data. We then consider the ways in which current law, policy, and practice help and hinder the work of school personnel as they endeavour to promote attendance and reduce absenteeism. Thereafter, we propose modifications to current policy and practice that could enhance the prompt identification and response to emerging absenteeism. When school personnel have easy access to reliable attendance data, and when they become accustomed to using the data to inform their work to promote attendance and respond to absenteeism, they are in a stronger position to support positive developmental outcomes among young people.Pathways through Adolescenc

Photon Recycling in CsPbBr3All-Inorganic Perovskite Nanocrystals

Photon recycling, the iterative process of re-absorption and re-emission of photons in an absorbing medium, can play an important role in the power-conversion efficiency of photovoltaic cells. To date, several studies have proposed that this process may occur in bulk or thin films of inorganic lead-halide perovskites, but conclusive proof of the occurrence and magnitude of this effect is missing. Here, we provide clear evidence and quantitative estimation of photon recycling in CsPbBr3 nanocrystal suspensions by combining measurements of steady-state and time-resolved photoluminescence (PL) and PL quantum yield with simulations of photon diffusion through the suspension. The steady-state PL shows clear spectral modifications including red shifts and quantum yield decrease, while the time-resolved measurements show prolonged PL decay and rise times. These effects grow as the nanocrystal concentration and distance traveled through the suspension increase. Monte Carlo simulations of photons diffusing through the medium and exhibiting absorption and re-emission account quantitatively for the observed trends and show that up to five re-emission cycles are involved. We thus identify 4 quantifiable measures, PL red shift, PL QY, PL decay time, and PL rise time that together all point toward repeated, energy-directed radiative transfer between nanocrystals. These results highlight the importance of photon recycling for both optical properties and photovoltaic applications of inorganic perovskite nanocrystals.This research received funding from The Netherlands Organisation for Scientific Research (NWO) in the framework of the Materials for Sustainability Programme (MAT4SUS Project No. 739.017.011)

A VR-based visualization framework for effective information perception and cognition

An information visualization framework is proposed that considers key human factors for effective complex data perception and cognition. Virtual reality (VR) technology with data transformation heuristics are deployed in building the framework where an interactive VR-based 3-D information visualization platform is developed. The framework is applied to develop a visualization system for an express cargo handling centre where users is able to effectively perceive operation details and carry out timely decision making. ©2008 IEEE.link_to_subscribed_fulltex

A VR-based visualization framework for effective information perception and cognition

An information visualization framework is proposed that considers key human factors for effective complex data perception and cognition. Virtual reality (VR) technology with data transformation heuristics are deployed in building the framework where an interactive VR-based 3-D information visualization platform is developed. The framework is applied to develop a visualization system for an express cargo handling center where analysts are able to effectively perceive operation details and carry out timely decision making

Testing a global standard for quantifying species recovery and assessing conservation impact.

Recognizing the imperative to evaluate species recovery and conservation impact, in 2012 the International Union for Conservation of Nature (IUCN) called for development of a "Green List of Species" (now the IUCN Green Status of Species). A draft Green Status framework for assessing species' progress toward recovery, published in 2018, proposed 2 separate but interlinked components: a standardized method (i.e., measurement against benchmarks of species' viability, functionality, and preimpact distribution) to determine current species recovery status (herein species recovery score) and application of that method to estimate past and potential future impacts of conservation based on 4 metrics (conservation legacy, conservation dependence, conservation gain, and recovery potential). We tested the framework with 181 species representing diverse taxa, life histories, biomes, and IUCN Red List categories (extinction risk). Based on the observed distribution of species' recovery scores, we propose the following species recovery categories: fully recovered, slightly depleted, moderately depleted, largely depleted, critically depleted, extinct in the wild, and indeterminate. Fifty-nine percent of tested species were considered largely or critically depleted. Although there was a negative relationship between extinction risk and species recovery score, variation was considerable. Some species in lower risk categories were assessed as farther from recovery than those at higher risk. This emphasizes that species recovery is conceptually different from extinction risk and reinforces the utility of the IUCN Green Status of Species to more fully understand species conservation status. Although extinction risk did not predict conservation legacy, conservation dependence, or conservation gain, it was positively correlated with recovery potential. Only 1.7% of tested species were categorized as zero across all 4 of these conservation impact metrics, indicating that conservation has, or will, play a role in improving or maintaining species status for the vast majority of these species. Based on our results, we devised an updated assessment framework that introduces the option of using a dynamic baseline to assess future impacts of conservation over the short term to avoid misleading results which were generated in a small number of cases, and redefines short term as 10 years to better align with conservation planning. These changes are reflected in the IUCN Green Status of Species Standard