The scope of this paper is to outline, in a general way, the safety philosophy inherent in present road- and street design, trace the origin of this philosophy, and to present the principles for a ...new design of streets and roads. It will be argued that deficiencies in the present road design philosophy are the main cause of the global road safety crisis, clearly indicating its man-made nature. A brief description is made of the decision process leading to the establishment of Vision Zero as Sweden’s Traffic Safety Policy in 1997.
Following an analysis of the problem, suggestions are made for finding solutions. The solutions are based on some of the principles in Vision Zero. They include a new basic mechanism for creating error-tolerance in the road system, and new design principles for road- and street design.
The tradition of “blaming the victim” is hereby questioned and focus is put on the need for professionals to act based on these new standards. During the last 10 years the fatalities in Sweden have dropped from approximately 550/year to 450/year. Roads redesigned with median barriers have an 80% reduction in fatalities. Streets with 30
km/h design speed show similar results. This indicates that measures derived from Vision Zero strategy are effective but that large scale implementation has not yet been done.
•Episodic memory builds up across eye movements to event elements.•Co-registered eye-tracking and EEG reveal the underlying neural mechanisms.•Deconvolution modeling corrected for the spurious ...effects of saccades on EEG.•Fixation-related theta and alpha activity predicts subsequent episodic memory performance.
The brain systems of episodic memory and oculomotor control are tightly linked, suggesting a crucial role of eye movements in memory. But little is known about the neural mechanisms of memory formation across eye movements in unrestricted viewing behavior. Here, we leverage simultaneous eye tracking and EEG recording to examine episodic memory formation in free viewing. Participants memorized multi-element events while their EEG and eye movements were concurrently recorded. Each event comprised elements from three categories (face, object, place), with two exemplars from each category, in different locations on the screen. A subsequent associative memory test assessed participants’ memory for the between-category associations that specified each event. We used a deconvolution approach to overcome the problem of overlapping EEG responses to sequential saccades in free viewing. Brain activity was time-locked to the fixation onsets, and we examined EEG power in the theta and alpha frequency bands, the putative oscillatory correlates of episodic encoding mechanisms. Three modulations of fixation-related EEG predicted high subsequent memory performance: (1) theta increase at fixations after between-category gaze transitions, (2) theta and alpha increase at fixations after within-element gaze transitions, (3) alpha decrease at fixations after between-exemplar gaze transitions. Thus, event encoding with unrestricted viewing behavior was characterized by three neural mechanisms, manifested in fixation-locked theta and alpha EEG activity that rapidly turned on and off during the unfolding eye movement sequences. These three distinct neural mechanisms may be the essential building blocks that subserve the buildup of coherent episodic memories during unrestricted viewing behavior.
Display omitted
•First attempt to use machine learning to estimate estuarine NPP from satellite data.•Machine learning algorithm greatly outperformed VGPM for NPP estimation.•Tampa Bay NPP shows seasonality and an ...increasing trend from 2003 to 2020.•Seasonality and long-term increasing trend are largely driven by water temperature.•NPP shows a spatial pattern that likely reflects differences in river discharge.
Net primary production (NPP) plays an important role in estuarine carbon cycling, which has been increasingly impacted by human activities and global climate change. Spatiotemporal trends of NPP in the open ocean have been well studied using satellite data and standard primary production algorithms such as the Vertically Generalized Production Model (VGPM), but these algorithms are generally not suitable for estuarine and coastal waters. Previous remote sensing studies on estuarine NPP mainly focused on the tuning of the standard VGPM based on extensive local in situ data. Here we make a first attempt to use machine learning algorithms to estimate NPP in an estuarine environment from satellite measurements. Tampa Bay, the largest estuary in Florida (United States), has abundant in situ measurements of NPP, although the spatiotemporal variability of NPP within the bay remains unrevealed. Combining these data with concurrent MODIS/Aqua image data, we developed and evaluated seven machine learning algorithms (support vector regression, random forest, decision tree, bagging, adaptive boosting, gradient tree boosting, and neural network), and applied the one with the least root mean square error (RMSE) and highest correlation coefficient to establish a time-series NPP record for Tampa Bay from 2002 to 2020. Results of the best performing algorithm (Pearson’s r = 0.82, RMSE = 151.0 mgC m−2 d−1) showed substantial improvement over the standard or tuned VGPM (Pearson’s r = 0.51, RMSE = 364.9 mgC m−2 d−1), using the same independent variables for NPP ranging from 157.5 to 1368.8 mgC m−2 d−1. MODIS NPP shows temporal variations that are largely driven by temperature: lowest values in winter, highest values in summer, and an increasing trend from 2003 to 2020, highlighting the impact of global warming on estuarine NPP. The spatial distribution of MODIS NPP shows higher values in Hillsborough Bay, Middle Tampa Bay and Lower Tampa Bay, and relatively lower values in Old Tampa Bay, a pattern that likely reflects differences in river discharge. The long-term NPP product derived from machine learning algorithms and satellite data can complement existing field-based monitoring programs and help to understand estuarine responses to climate changes and human impacts, and design relevant mitigation strategies.
This study aims to establish a methodological framework for investigating deception in both spoken and written language production. A foundational premise is that the production of deceitful ...narratives induces a heightened cognitive load that has a discernable influence on linguistic processes during real-time language production. This study includes meticulous analysis of spoken and written data from two participants who told truthful and deceitful narratives. Spoken processes were captured through audio recordings and subsequently transcribed, while written processes were recorded using keystroke logging, resulting in final texts and corresponding linear representations of the writing activity. By grounding our study in a linguistic approach for understanding cognitive load indicators in language production, we demonstrate how linguistic processes, such as text length, pauses, fluency, revisions, repetitions, and reformulations can be used to capture instances of deception in both speaking and writing. Additionally, our findings underscore that markers of cognitive load are likely to be more discernible and more automatically measured in the written modality. This suggests that the collection and examination of writing processes have substantial potential for forensic applications. By highlighting the efficacy of analyzing both spoken and written modalities, this study provides a versatile methodological framework for studying deception during language production, which significantly enriches the existing forensic toolkit.
Research on episodic memory has established that spontaneous eye movements occur to spaces associated with retrieved information even if those spaces are blank at the time of retrieval. Although it ...has been claimed that such looks to "nothing" can function as facilitatory retrieval cues, there is currently no conclusive evidence for such an effect. In the present study, we addressed this fundamental issue using four direct eye manipulations in the retrieval phase of an episodic memory task: (a) free viewing on a blank screen, (b) maintaining central fixation, (c) looking inside a square congruent with the location of the to-be-recalled objects, and (d) looking inside a square incongruent with the location of the to-be-recalled objects. Our results provide novel evidence of an active and facilitatory role of gaze position during memory retrieval and demonstrate that memory for the spatial relationship between objects is more readily affected than memory for intrinsic object features.
Anton Nilsson (1887-1989) est l’une des plus célèbres figures du mouvement ouvrier suédois, un militant de premier plan élevé au statut d’icône. Membre du Mouvement des jeunes socialistes dans la ...ville ouvrière de Malmö, il place une bombe sur le navire Amalthea, qui abritait 73 briseurs de grève anglais, dans le cadre d’un vaste conflit du travail impliquant les dockers des ports suédois. Il est condamné à mort, mais à la suite de nombreuses protestations, y compris internationales, sa peine est commuée en prison à vie. En 1917, après les troubles de la « révolution des pommes de terre » et l’élection du premier gouvernement social-démocrate/libéral, il est libéré à la faveur d’une amnistie. À la veille de la Saint-Jean 1919, Anton Nilsson décroche un permis international de piloter des avions et rejoint le jeune État soviétique, où il devient pilote dans l’Armée rouge. Toute sa vie il est resté un militant et, centenaire, il participait encore à la manifestation du 1er mai à Stockholm, où il s’était installé et où il est enterré.
Anton Nilsson (1887–1989) is one of the most famous people in the Swedish labour movement and a prominent activist with the status of an icon. He was a member of the Young Socialist movement in the working-class city of Malmö, he placed a bomb on the ship Amalthea, which housed 73 English strike breakers, in connection with an extensive dock worker conflict in the Swedish ports. Anton Nilsson was sentenced to death in a subsequent trial, but after extensive protests, also abroad, the death sentence was converted to life imprisonment. Following the “potato revolution” and as the first Social Democratic / Liberal government was elected, he was granted an amnesty in 1917 and released from captivity. On Midsummer's Eve 1919, Anton Nilsson took an international flight certificate and went to the young Soviet state to become a pilot in the Red Army. He remained an agitator throughout his life and participated as a centenarian in the First of May demonstration in Stockholm, where he then lived and later was also buried.
Time series of environmental measurements are essential for detecting, measuring and understanding changes in the Earth system and its biological communities. Observational series have accumulated ...over the past 2–5 decades from measurements across the world's estuaries, bays, lagoons, inland seas and shelf waters influenced by runoff. We synthesize information contained in these time series to develop a global view of changes occurring in marine systems influenced by connectivity to land. Our review is organized around four themes: (i) human activities as drivers of change; (ii) variability of the climate system as a driver of change; (iii) successes, disappointments and challenges of managing change at the sea‐land interface; and (iv) discoveries made from observations over time. Multidecadal time series reveal that many of the world's estuarine–coastal ecosystems are in a continuing state of change, and the pace of change is faster than we could have imagined a decade ago. Some have been transformed into novel ecosystems with habitats, biogeochemistry and biological communities outside the natural range of variability. Change takes many forms including linear and nonlinear trends, abrupt state changes and oscillations. The challenge of managing change is daunting in the coastal zone where diverse human pressures are concentrated and intersect with different responses to climate variability over land and over ocean basins. The pace of change in estuarine–coastal ecosystems will likely accelerate as the human population and economies continue to grow and as global climate change accelerates. Wise stewardship of the resources upon which we depend is critically dependent upon a continuing flow of information from observations to measure, understand and anticipate future changes along the world's coastlines.
This study provides evidence that eye movements reflect the positions of objects while participants listen to a spoken description, retell a previously heard spoken description, and describe a ...previously seen picture. This effect is equally strong in retelling from memory, irrespective of whether the original elicitation was spoken or visual. In addition, this effect occurs both while watching a blank white board and while sitting in complete darkness. This study includes 4 experiments. The first 2 experiments measured eye movements of participants looking at a blank white board. Experiment 1 monitors eye movements of participants on 2 occasions: first, when participants listened to a prerecorded spoken scene description; second, when participants were later retelling it from memory. Experiment 2 first monitored eye movements of participants as they studied a complex picture visually, and then later as they described it from memory. The second pair of experiments (Experiments 3 and 4) replicated Experiments 1 and 2 with the only difference being that they were executed in complete darkness. This method of analysis differentiated between eye movements that are categorically correct relative to the positions of the whole eye gaze pattern (global correspondence) and eye movements that are only locally correct (local correspondence). The discussion relates the findings to the current debate on mental imagery.
It is shown that the conversion of ethanol-to-gasoline over an HZSM-5 catalyst yields essentially the same product distribution as for methanol-to-gasoline performed over the same catalyst. ...Interestingly, there is a significant difference between the identity of the hydrocarbon molecules trapped inside the HZSM-5 catalyst when ethanol is used as a feed instead of methanol. In particular, the hydrocarbon pool contains a significant amount of ethylsubstituted aromatics when ethanol is used as feedstock, but there remains only methyl-substituted aromatics in the product slate.
While previous research has demonstrated that gaze position can increase the accessibility of previous memories when reconstructing the past (Johansson & Johansson, 2014), the present study tested ...whether such gaze behavior can assist in selecting target memories in the face of competing memories. An adapted retrieval practice paradigm was used, where participants were engaged in selective retrieval while looking at locations that overlapped with the encoding location of either the target item or the competing item. Replicating previous findings, we show that encoding-retrieval compatibility in gaze positions increases the likelihood of successful remembering. We furthermore provide novel evidence that looking at locations where competing items were encoded during retrieval practice induces forgetting of the competitors during subsequent tests of memory. Corroborating evidence from changes in pupil size suggests that such gaze induced forgetting is modulated by the increased demands to successfully resolve interference from competing memories. This study represents the first demonstration that gaze position can both up- and downregulate memory accessibility during competitive memory retrieval and offers novel insights into the underlying dynamics.
PDF
