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In this paper we develop a fully nonconforming virtual element method of arbitrary approximation order for the two dimensional Cahn–Hilliard equation. We carry out the error analysis for the semidiscrete (continuous-in-time) scheme and verify the theoretical convergence result via numerical experiments. We present a fully discrete scheme which uses a convex splitting Runge–Kutta method to discretize in the temporal variable alongside the virtual element spatial discretization. [ABSTRACT FROM AUTHOR]

The machinic moving image has the power to engage with a larger audience than a drawing. It often strips away ambiguity, getting its message across fast and indelibly, coupled with the troubles of our age – particularly the mitigation of climate change, the need for profound international cooperation, and the sheer scale of the intervention required to ease these problems. Marissa Lindquist evokes Australian artist and filmmaker Liam Young's Great Endeavor film project that relishes a new technological sublime – long a preoccupation in his work. [ABSTRACT FROM AUTHOR]

The article contends that storytelling is not merely a supplementary aspect of law but integral to its very essence. By examining popular culture and literary works like Frank Herbert’s Dune, the article illustrates how storytelling reveals and critiques the underlying violence and ambitions within legal systems. Structured in three acts, the article first examines legal scholars’ use of storytelling to unmask violence, then juxtaposes literary and legal critiques, and ends by demonstrating law as a unique form of storytelling, essential for understanding and critiquing legal practices. [ABSTRACT FROM AUTHOR]

This essay examines the history of space opera and melodrama through the lens of science fiction and especially Frank Herbert’s 1965 novel Dune, with recent film adaptations by Denis Villeneuve (2021, 2024). Drawing on scholarship that explores the imperial and energy imaginary of science fiction, it argues that space opera is a subgenre of science fiction which amplifies melodrama’s ideological and structural critique of domestic and colonial power and the energetic regimes that produce them. As an energodrama, Dune deploys contemporary ecosystem science, with its tracing of energetic flows and circuits of resource interdependence, to detail the impact of resource extraction on ecologies and colonial territories, reading this pattern across a range of contested histories, from the guano wars of Peru, to the first Arab Revolt of WWI, to the nuclear brinksmanship of the cold war. Recent film adaptations of Dune restore the visual and sonic texture of this critique, amplifying the melodramatic texture of the novel and providing new sonic and visual ecologies that bring the viewer and auditor into visceral contact with those histories and the territories they remade. [ABSTRACT FROM AUTHOR]

Further global warming is projected to increase coastal erosion. Therefore, coastal protection is being intensified with a strong emphasis placed on environmental biotechniques. One such activity is anti-erosion planting using alien plant species. The aliens penetrate from the plant species into the natural ecosystems, reducing their biodiversity and ecosystem services. Parallel to coastal protection, measures for nature conservation are undertaken to eliminate invasive aliens from the natural ecosystems that take over. Such actions are featured in the master plans drafted for the Natura 2000 sites on the south Baltic coast. Although there is no sufficient scientific evidence, Salix acutifolia willow used in anti-erosion plantings was considered a neophyte invading white and grey dune habitats and reducing their biodiversity. The master plans mandated the elimination of the willow without considering the role of its spontaneous locations in providing erosion-control services. In 2017–2023, research was undertaken on the south Baltic coast (Wolin Island) on the arguments behind such a radical conservation action. We present the results of these studies. We consider the elimination of S. acutifolia from its spontaneous locations as a reduction in both its erosion-control services and the willow's role in nature conservation. We present some principles for action in case of a conflict between coast protection and nature conservation. [ABSTRACT FROM AUTHOR]

Plant traits and connectivity influence habitat usage, but fine‐scale ecological characteristics that determine fossorial animal movement patterns remain unclear. To understand the influence of landscape connectivity on movement behaviour, we examined vegetation characteristics relative to tracks between vegetation hummocks left by the short blind dart skink, Typhlacontias brevipes, a fossorial lizard inhabiting dunes of the Namib Desert. We measured characteristics of >700 plant hummocks and 293 T. brevipes tracks. Tracks were relatively direct from hummock to hummock (median straightness = 0.94). Vegetation hummocks with tracks were significantly larger than hummocks without tracks, indicating that vegetation size was the most important factor we measured in predicting track occurrence and was more important to skinks than the distances between hummocks, with only 24% of tracks occurring between nearest neighbouring vegetation hummocks. Network clusters consisting of as many as 15 vegetation hummocks were connected by tracks. Skink tracks had a median length of 815 cm and were oriented primarily from 0° to 30°. Our study highlights the importance of vegetation size to fossorial skinks and raises questions regarding other vegetation features that might influence the movement and ecology of fossorial lizards. [ABSTRACT FROM AUTHOR]

DUNE is a next-generation long-baseline neutrino oscillation experiment. It is expected to measure, with unprecedented precision, the atmospheric oscillation parameters, including the CP-violating phase δ C P . Moreover, several studies have suggested that its unique features should allow DUNE to probe several new physics scenarios. In this work, we explore the performances of the DUNE far detector in constraining new physics if a high-energy neutrino flux is employed (HE-DUNE). We take into account three different scenarios: Lorentz Invariance Violation (LIV), Long-Range Forces (LRFs) and Large Extra Dimensions (LEDs). Our results show that HE-DUNE should be able to set bounds competitive to the current ones and, in particular, it can outperform the standard DUNE capabilities in constraining CPT-even LIV parameters and the compactification radius R E D of the LED model. [ABSTRACT FROM AUTHOR]

The Module-0 Demonstrator is a single-phase 600 kg liquid argon time projection chamber operated as a prototype for the DUNE liquid argon near detector. Based on the ArgonCube design concept, Module-0 features a novel 80k-channel pixelated charge readout and advanced high-coverage photon detection system. In this paper, we present an analysis of an eight-day data set consisting of 25 million cosmic ray events collected in the spring of 2021. We use this sample to demonstrate the imaging performance of the charge and light readout systems as well as the signal correlations between the two. We also report argon purity and detector uniformity measurements and provide comparisons to detector simulations. [ABSTRACT FROM AUTHOR]

Two ichnofacies have been named to encompass inland eolian depositional systems, the Octopodichnus and the Entradichnus ichnofacies, and are often combined into a single, Octopodichnus–Entradichnus ichnofacies. In contrast, coastal dune fields are characterized by a mixture of traces produced by marine and nonmarine organisms attributed to a single, Psilonichnus ichnofacies. However, inland eolian depositional systems lack marine organisms and encompass multiple lithofacies, the most extensive and broadly defined as being dunal and interdunal (includes many water laid deposits). The two lithofacies host generally different ichnoassemblages. Dunes are dominated by arthropod and tetrapod walking traces, whereas interdunes are dominated by shallow burrows, though there is some overlap in the ichnoassemblages of both lithofacies. A re-evaluation of the three ichnotaxa unique to the Entradichnus ichnofacies indicates they are invalid: Entradichnus = Taenidium, Pustulichnus = Skolithos, and Digitichnus is not based on a biogenic structure. The Entradichnus ichnofacies is characterized by abundant horizontal, backfilled traces of mobile deposit feeders and other ichnotaxa that indicate it is a synonym of the Scoyenia ichnofacies. I advocate subsuming the Laoporus, Brasilichnium, and Chelichnus ichnofacies of earlier workers under the Octopodichnus ichnofacies. Thus, the two principal ichnofacies of eolian depositional systems are the Octopodichnus and Scoyenia ichnofacies, though several other ichnofacies have been identified. No single ichnofacies characterizes eolian depositional systems. [ABSTRACT FROM AUTHOR]

Aeolian concentration of iron-titanium oxides (black sand) is a common phenomenon on coasts around the world but associated aeolian detrital gold is relatively rare. In contrast, Holocene and active dunes at Waipapa beach on the coast of the southern South Island of New Zealand host aeolian black sand layers with locally abundant finely particulate (<200 µm) gold and platinum, some of which have been mined historically. Aeolian concentration of black sand, gold and platinum is driven by strong prevailing westerly winds (gusts >100 km/h) on annual or decadal time scales. Holocene fluvial recycling of aeolian sands has been important in upgrading the black sand, gold, and platinum contents. Surf concentration of black sand on the beach is minor and merely feeds the aeolian system, and this differs from other beach gold deposits around the world, which are surf-dominated. Most of the Waipapa beach gold (>90%) has flaky morphology with abundant superficial transport-related deformation reflective of fluvial transport, probably down the nearby Mataura River (∼200 km transport) between Miocene and Holocene. Minor distinctive wind-sculpted toroidal gold, and the platinum, arrived from the west (∼300 km transport) via the Waiau River and Foveaux Strait. [ABSTRACT FROM AUTHOR]

An overview of modern bed load measurement methods in rivers with fine alluvium is performed. Four groups of the methods are identified: measuring with bed load samplers, dune-tracking with a single-beam echo-sounder, dune-tracking with a multi-beam echo-sounder and measurement using acoustic Doppler current profilers. Strengths and weaknesses of each method are considered. Due to the fact that bed load transport occurs in the form of dunes the most promising methods seem to be based on the use of echo-sounders since they make it possible to take into account the integrity of bed forms directly. [ABSTRACT FROM AUTHOR]

We introduce a novel analytical model of the growth of barchan dunes in terms of their two flanks, from which we derive expressions for the size‐dependence of the bilateral asymmetry of these bedforms in three cases where different mechanisms dominate the growth process. Analysis of the morphology of barchans on Mars and Earth suggest that there may exist two distinct attractor states for the asymmetry distribution. By comparing our analytical results with the observations, we show that the growth of barchan dunes appears to be dominated by processes, which are proportional to the basal area or volume of the bedforms, rather than being linear to their width as is typically assumed. We propose hypotheses explaining area‐dominated growth as a result of variable wind regimes and volume‐dominated growth from collisions. These predictions appear to be in line with the available data for the terrestrial swarms and barchan‐like submarine bedforms and offer the potential of predicting patterns in inaccessible wind regimes from data on the morphology of the dunes. [ABSTRACT FROM AUTHOR]

Geometric characteristics of subaqueous bedforms, such as height, length and leeside angle, are crucial for determining hydraulic form roughness and interpreting sedimentary records. Traditionally, bedform existence and geometry predictors are primarily based on uniform, cohesionless sediments. However, mixtures of sand, silt and clay are common in deltaic, estuarine, and lowland river environments, where bedforms are ubiquitous. Therefore, we investigate the impact of fine sand and silt in sand‐silt mixtures on bedform geometry, based on laboratory experiments conducted in a recirculating flume. We systematically varied the fraction of sand and silt for different discharges, and utilized an acoustic Doppler velocimeter to measure flow velocity profiles. The final bed geometry was captured using a line laser scanner. Our findings reveal that the response of bedforms to an altered fine sediment percentage is ambiguous, and likely depends on, among others, bimodality‐driven bed mobility and sediment cohesiveness. When fine, non‐cohesive material (fine sand or coarse silt) is mixed with the base material (medium sand), an increased dune height and length is observed, possibly caused by the hiding‐exposure effect, resulting in enhanced mobility of the coarser material. However, weakly cohesive fine silt suppresses dune height and length, possibly caused by reduced sediment mobility. Finally, in the transition from dunes to upper stage plane bed, there are indications that the bed becomes unstable and dune heights vary over time. The composition of the bed material does not significantly impact the hydraulic roughness, but mainly affects roughness via the bed morphology, especially the leeside angle. Plain Language Summary: Underwater bedforms, such as dunes, are often found on the bed of rivers and deltas. These rhythmic undulations have specific shapes and sizes, and they affect how water flows. When the bed of the river is made up of sand, we can predict the dune height and length. However, mixtures of different‐sized sediments are common in rivers, and it is unknown how this impacts the geometry of the dunes. Therefore, we did experiments in a flume, a laboratory facility to simulate a river, and we tested different sediment bed mixtures. We found that replacing part of the base material with non‐cohesive fine particles leads to longer dunes, likely caused by increased mobility of the base material. However, for weakly cohesive fine particles, the effect was the opposite, and the dunes became shorter, probably due to the limited mobility of the sediment. Finally, we observed that under high flow conditions, the bed became unstable and different dune shapes occurred. We found that the friction the water experiences is not directly impacted by the sediment bed mixtures, but is mostly affected by the shape of the bedforms. Key Points: An increased dune length due to a larger fraction of finer, non‐cohesive material in a sand bed, implies an increased mobility of the sandA decreased dune size due to a larger fraction of finer, weakly cohesive silt in a sand bed, implies a decreased mobility of the sandSediment bed composition indirectly affects hydraulic roughness by altering bedform geometry [ABSTRACT FROM AUTHOR]

Invertebrates play a critical role in beach ecosystems, and seasonal variation in their occurrence and abundance likely influences food webs. We examine and characterise seasonal patterns in invertebrate activity on a temperate, southern sandy dune and beach ecosystem at Venus Bay, Victoria, Australia. We index invertebrate abundance, diversity and assemblage composition at fixed-site pitfall traps which were deployed in four transects from the lower dunes to the beach. Seasonal differences occurred in assemblage composition (foredunes only), richness and abundance. Insects dominated assemblages in summer, spring and autumn; crustaceans dominated winter assemblages. Morphospecies richness was lowest in winter (139% higher in summer and 169% higher in autumn). Our results contrast with other studies from temperate beaches in that (1) richness was higher on beaches compared to in foredunes across all seasons and (2) abundance differed significantly such that winter abundance was higher than for all other seasons. Possible explanations include the exposed nature of the study foredunes, marine ecological subsides in the form of beach wrack in winter and/or between-site variations in such factors. Further studies would usefully examine between-beach variation in seasonality in invertebrate activity in foredunes and dunes. [ABSTRACT FROM AUTHOR]

In this paper we present a framework for the construction and implementation of general virtual element spaces based on projections built from constrained least squares problems. Building on the triples used for finite element spaces, we introduce the concept of a virtual element method (VEM) tuple which encodes the necessary building blocks to construct these projections. Using this approach, a wide range of virtual element spaces can be defined. We discuss Hk-conforming spaces for k = 1, 2 as well as divergence and curl free spaces. This general framework has the advantage of being easily integrated into any existing finite element package, and we demonstrate this within the open source software package Dune. [ABSTRACT FROM AUTHOR]

Sand dunes are supported by the extensive root systems of dune plants that anchor the dune and protect it from erosion. While all plants that grow on the dunes support their structure, invasive plants can outcompete the native and non‐native dune plants for resources such as nutrients, sunlight, and space to grow. During the summer, sea turtles lay nests on beaches and near dunes; however, their eggs and hatchlings are at risk of destruction and entrapment by dune plant root penetration. Dune plant roots can penetrate sea turtle nest cavities, thus decreasing hatch success of the eggs and emergence success of the hatchlings. We aimed to determine how plant roots impact threatened loggerhead sea turtle (Caretta caretta) nests on Casey Key, Sarasota County, Florida, USA and to assess the factors affecting plant root invasion. Specifically, we determined the effect of plant roots on loggerhead sea turtle nest success, the extent of the impact of invasive plants over non‐invasive plants on nests, and if the distance from the dune (barrier) affects whether roots will penetrate the nest. From July to August 2022, we excavated 93 nests to determine the extent of root penetration and identify associated plant species. This field campaign was supported by a long‐term dataset (1987–2022) on loggerhead sea turtle nesting across the region. We found that root presence decreased hatch success by 21% and emergence success by 18%, compared to nests that lacked roots within the nest chamber. Nests closer to the dune were more likely to have a higher proportion of root damage and lower hatch and emergence success. This study helps advance understanding of how native and non‐native plants affect sea turtle reproductive success and helps inform coastal management aimed at conserving threatened loggerhead populations. [ABSTRACT FROM AUTHOR]

Characterizing morphological features in shallow streams such as dunes and ripples is vital to studies on fluvial geomorphology and in-stream habitat assessments of stream ecology. The paper aimed to examine the feasibility of a conventional hyperspectral method called linear optimal band ratio analysis for capturing the detailed morphologies in shallow small streams, allowing the identification of ripples and dunes. The present study involved a dedicated field experiment at the Gam stream, which is a tributary of the Nakdong River, South Korea. An unmanned aerial vehicle based hyperspectral image was obtained with a spatial resolution of <10 cm and developed an optimal depth-band ratio rating by densely scattered in situ bathymetry measurements with a portable Real Time Kinematic Global Positioning System. The derived hyperspectral bathymetric map with a 7 cm spatial resolution successfully captured the detailed bed morphology, where dunes with sizes of 1.5 m were clearly identifiable. The correlation with depth measured by RTK-GPS was found to be 0.956, with Root Mean Square Error of 0.033 meter. The research confirmed that the conventional linear OBRA used for low-altitude UAV-based hyperspectral images can capture morphological features in shallow streams with a high spatial resolution. [ABSTRACT FROM AUTHOR]

Debris upstream of the bridge pier and through the flow variations, changes scour hole and river morphology. Dune forms downstream of the pier as a result of sediment movement in the pier scour phenomenon. The present study investigates the dune characteristics and geometrical parameters in experimental models. Experimental models are categorized into four cases including the pier, pier with buried debris, pier with free debris, and pier with free debris which was protected by bed sill at four various distances from the pier downstream face. It was concluded that debris submergence, densimetric particle Froude number, flow intensity, and bed sill affect dune geometrical parameters such as dune height (hd), dune crest position (xd), and dune length (ld). Results show dune height increases with debris accumulation up to almost 150% and its crest distance from the pier reduces up to approximately 100%. Also, in higher Fd, the dune height and its crest distance reduce with bed sill up to 50%, and in lower Fd, hd, and xd increase by up to 80% by using bed sill. Based on these effective parameters, three separate equations were proposed for hd, xd, and ld in pier scour with debris accumulation protected by bed sill.

The interest in understanding how information is controlled and circulated has recently increased exponentially, mostly due to the spread of disinformation from those in power (those looking to attain it or increase it). Seemingly widespread -- though by no means a recent occurrence -- during the 2016 American Presidential Campaign, the reliance on disinformation to steer public opinion has also characterized, for example, the rise of farright legend are weaponized by different entities to oppress those with less power in Frank Herbert's Dune (1965) and Ursula K. Le Guin's City of Illusions (1967), and also consider the presence, in both novels, of elements of hope and liberation from oppression through the unveiling of truth, whatever it may be. To achieve this, key and representative moments in both novels are contemplated briefly and then compared, establishing a sort of dialogue between Herbert and Le Guin's respective imaginaria. political parties such as Chega (Portugal) and Vox (Spain) across Europe as well as how the conflicts in Ukraine and Gaza are presented on social media. It has become, thus, mandatory to rely on fact-checking platforms but, above all, on our own critical thinking and ability to scrutinize information and its sources. As a result, it seems relevant to also analyze this subject matter in literature, as a way of attempting to obtain some insight into how to navigate and mitigate the problem. This article aims to examine how information, history and legend are weaponized by different entities to oppress those with less power in Frank Herbert's Dune (1965) and Ursula K. Le Guin's City of Illusions (1967), and also consider the presence, in both novels, of elements of hope and liberation from oppression through the unveiling of truth, whatever it may be. To achieve this, key and representative moments in both novels are contemplated briefly and then compared, establishing a sort of dialogue between Herbert and Le Guin's respective imaginaria. [ABSTRACT FROM AUTHOR]

Understanding flow behavior over bedforms is one of the most complex topics in sedimentary engineering. Despite numerous studies that have been conducted on river beds, the understanding of the interaction between flow and bed in turbid and clear waters is still impoverished. The present study mainly focused on simulating clear and turbid flows using SSIIM software. This study modeled the flow through a 12-meter channel with nine consecutive dunes of 1-meter length and 4 cm height. Nine simulations were performed to investigate the effects of flow velocity and flow separation zone in clear and turbid water. Finally, the results were compared with the experimental results of previous researchers using the PIV. The modeling results showed that the length of the flow separation zone increases with increasing velocity, and the highest probability of flow separation occurs at the highest velocity. In turbid flow, flow separation is less than the same flow condition in clear flow, and as fluid density increases, the length of the flow separation zone decreases. This study demonstrates the acceptable functionality of the SSIIM software and its accuracy in estimating flow behavior with and without sediment. [ABSTRACT FROM AUTHOR]

Debris upstream of the bridge pier and through the flow variations, changes scour hole and river morphology. Dune forms downstream of the pier as a result of sediment movement in the pier scour phenomenon. The present study investigates the dune characteristics and geometrical parameters in experimental models. Experimental models are categorized into four cases including the pier, pier with buried debris, pier with free debris, and pier with free debris which was protected by bed sill at four various distances from the pier downstream face. It was concluded that debris submergence, densimetric particle Froude number, flow intensity, and bed sill affect dune geometrical parameters such as dune height (hd), dune crest position (xd), and dune length (ld). Results show dune height increases with debris accumulation up to almost 150% and its crest distance from the pier reduces up to approximately 100%. Also, in higher Fd, the dune height and its crest distance reduce with bed sill up to 50%, and in lower Fd, hd, and xd increase by up to 80% by using bed sill. Based on these effective parameters, three separate equations were proposed for hd, xd, and ld in pier scour with debris accumulation protected by bed sill. [ABSTRACT FROM AUTHOR]

Abstract Sand dunes are supported by the extensive root systems of dune plants that anchor the dune and protect it from erosion. While all plants that grow on the dunes support their structure, invasive plants can outcompete the native and non‐native dune plants for resources such as nutrients, sunlight, and space to grow. During the summer, sea turtles lay nests on beaches and near dunes; however, their eggs and hatchlings are at risk of destruction and entrapment by dune plant root penetration. Dune plant roots can penetrate sea turtle nest cavities, thus decreasing hatch success of the eggs and emergence success of the hatchlings. We aimed to determine how plant roots impact threatened loggerhead sea turtle (Caretta caretta) nests on Casey Key, Sarasota County, Florida, USA and to assess the factors affecting plant root invasion. Specifically, we determined the effect of plant roots on loggerhead sea turtle nest success, the extent of the impact of invasive plants over non‐invasive plants on nests, and if the distance from the dune (barrier) affects whether roots will penetrate the nest. From July to August 2022, we excavated 93 nests to determine the extent of root penetration and identify associated plant species. This field campaign was supported by a long‐term dataset (1987–2022) on loggerhead sea turtle nesting across the region. We found that root presence decreased hatch success by 21% and emergence success by 18%, compared to nests that lacked roots within the nest chamber. Nests closer to the dune were more likely to have a higher proportion of root damage and lower hatch and emergence success. This study helps advance understanding of how native and non‐native plants affect sea turtle reproductive success and helps inform coastal management aimed at conserving threatened loggerhead populations.

Understanding flow behavior over bedforms is one of the most complex topics in sedimentary engineering. Despite numerous studies that have been conducted on river beds, the understanding of the interaction between flow and bed in turbid and clear waters is still impoverished. The present study mainly focused on simulating clear and turbid flows using SSIIM software. This study modeled the flow through a 12-meter channel with nine consecutive dunes of 1-meter length and 4 cm height. Nine simulations were performed to investigate the effects of flow velocity and flow separation zone in clear and turbid water. Finally, the results were compared with the experimental results of previous researchers using the PIV. The modeling results showed that the length of the flow separation zone increases with increasing velocity, and the highest probability of flow separation occurs at the highest velocity. In turbid flow, flow separation is less than the same flow condition in clear flow, and as fluid density increases, the length of the flow separation zone decreases. This study demonstrates the acceptable functionality of the SSIIM software and its accuracy in estimating flow behavior with and without sediment.

DUNE is a next-generation long-baseline neutrino oscillation experiment. It is expected to measure, with unprecedented precision, the atmospheric oscillation parameters, including the CP-violating phase δCP. Moreover, several studies have suggested that its unique features should allow DUNE to probe several new physics scenarios. In this work, we explore the performances of the DUNE far detector in constraining new physics if a high-energy neutrino flux is employed (HE-DUNE). We take into account three different scenarios: Lorentz Invariance Violation (LIV), Long-Range Forces (LRFs) and Large Extra Dimensions (LEDs). Our results show that HE-DUNE should be able to set bounds competitive to the current ones and, in particular, it can outperform the standard DUNE capabilities in constraining CPT-even LIV parameters and the compactification radius RED of the LED model.

Two ichnofacies have been named to encompass inland eolian depositional systems, the Octopodichnus and the Entradichnus ichnofacies, and are often combined into a single, Octopodichnus–Entradichnus ichnofacies. In contrast, coastal dune fields are characterized by a mixture of traces produced by marine and nonmarine organisms attributed to a single, Psilonichnus ichnofacies. However, inland eolian depositional systems lack marine organisms and encompass multiple lithofacies, the most extensive and broadly defined as being dunal and interdunal (includes many water laid deposits). The two lithofacies host generally different ichnoassemblages. Dunes are dominated by arthropod and tetrapod walking traces, whereas interdunes are dominated by shallow burrows, though there is some overlap in the ichnoassemblages of both lithofacies. A re-evaluation of the three ichnotaxa unique to the Entradichnus ichnofacies indicates they are invalid: Entradichnus = Taenidium, Pustulichnus = Skolithos, and Digitichnus is not based on a biogenic structure. The Entradichnus ichnofacies is characterized by abundant horizontal, backfilled traces of mobile deposit feeders and other ichnotaxa that indicate it is a synonym of the Scoyenia ichnofacies. I advocate subsuming the Laoporus, Brasilichnium, and Chelichnus ichnofacies of earlier workers under the Octopodichnus ichnofacies. Thus, the two principal ichnofacies of eolian depositional systems are the Octopodichnus and Scoyenia ichnofacies, though several other ichnofacies have been identified. No single ichnofacies characterizes eolian depositional systems.

The Module-0 Demonstrator is a single-phase 600 kg liquid argon time projection chamber operated as a prototype for the DUNE liquid argon near detector. Based on the ArgonCube design concept, Module-0 features a novel 80k-channel pixelated charge readout and advanced high-coverage photon detection system. In this paper, we present an analysis of an eight-day data set consisting of 25 million cosmic ray events collected in the spring of 2021. We use this sample to demonstrate the imaging performance of the charge and light readout systems as well as the signal correlations between the two. We also report argon purity and detector uniformity measurements and provide comparisons to detector simulations.

El presente artículo analiza los distintos y variados elementos que hacen de la novela de Frank Herbert Dune (1965) no solo la primera novela de ciencia ficción ecológica, sino una obra clave en seno de los environmental studies y la ecología en la década de 1960 en Estados Unidos. Bajo este parámetro, este artículo académico aborda su reconceptualización en clave ecofeminista a través del tropo del desierto y los elementos naturales del agua y la especia como símbolos que critican el comportamiento antropocentrista del ser humano sobre el medio y fomentan la concienciación medioambiental en la población. Para este desarrollo, serán claves el estudio sobre el desierto de Catrin Gersdorf y las consideraciones sobre el agua de Gaston Bachelard y Vandana Shiva, abogando por la creación de una política de acción-reflexión a través del compromiso ético, la solidaridad con el medio y la conservación de los diferentes sistemas y ciclos naturales. En última instancia, la metodología empleada pretende hallar un punto de encuentro en el análisis filosófico de Gilles Deleuze y Félix Guattari sobre el sujeto nómade como forma de resistencia a la dominación socioeconómica y agente activo y reactivo con el territorio a través del segundo volumen de su obra colaborativa Capitalismo y esquizofrenia (1972). De esta forma, se busca reformular este pensamiento a la luz de la teoría ecofeminista contemporánea llevada a cabo por Rosi Braidotti y Carolina Meloni, con el objetivo de rescatar la corriente de pensamiento deleuze-guattariana hacia una nueva teoría nómada feminista aplicada al espacio fronterizo, desarrollando así una concienciación política, ética y ecológica sostenible e inclusiva para todo grupo social y especie.

Searching the key words' wave-beach-dune interactions' in Web of Science, nearly 100 domestical and overseas publications since the 1980s have been analyzed and reviewed. This stuyd summarizes major advances at different temporal-spatial scales. The issues of integration between them are clarified by sorting the conceptual models and categorizing development stages. Additionally, research opportunities and challenges are identified. Studies on wave-beach-dune interactions have been initiated since 1980s and developed through the following three stages: theory proposed and improved, expansion of study areas, and in-depth exploration. The conceptual models have been developed from simple to reliable models across a range of micro-, meso-, and macro-scales. Studies were initially conducted by taking advantage of only field survey and bathymetry maps. Nowadays, collaborated technology and methods have been applied in studying coastal landforms through in-situ field monitoring, wind tunnel trial, 3S technologies, and numerical simulation. Study areas extended and expanded from southeast Australian coasts to Europe, South and North America, and Asian coasts. Although plenty of relevant reports have been published, some issues exist. Owing to their highly temporal-spatial heterogeneity, it is difficult to find a universal conceptual model for the worldwide coastal dune systems. At the micro-scale, as the complex process of wave-tide hydrological and aeolian dynamic imposed on surfzone-beach-dune and limitation of monitoring data utility, the existing theoretical model cannot completely reveal the mechanism of the terrestrial-marine interface and beach-dune landform response and feedback to wind dynamics. At the mesoscale, many mechanisms of dune response to storm surges have been proposed, but few are from the perspective of the surfzone-beach-dune as a whole system. More case studies based on observation are needed, which will benefit in-depth exploration. Furthermore, more long-term monitoring and refined models are required to build the bridge between fundamental process-response dynamics (events scale) and medium-long-term landforms topography changes and evolution. At the macroscale, given the alongshore sediment transport and supply, sea level rise rate, and landward and seaward sediment transport, prediction models of coastal geomorphological changes induced by sea level rise should be tested and supported by multi-temporal-spatial observation and monitoring data. Future studies will continue collaborating the historical reports and site monitoring techniques with high-resolution images interpretation to comprehensively understand the relationships between dynamic-response process and landforms geomorphology evolution by integration of environmental variables and surfzone, beach, and dune landforms investigation. The numerical simulation will reveal the mechanisms of wave-beach-dune interactions across micro-, meso-, and macro-scales and redefine theoretical concepts.

This article provides a reconsideration of Frank Herbert's dystopic perspective, through the careful analysis of Dune and Dune Messiah, the best-selling science fiction novels. Narratively unveiling the detrimental impact of colonizing imperialism motivated by religious doctrine, Dune and Dune Messiah compel their readers to denounce conceptions of the religious and the spiritual preventing the respectful formation of the human body, mind, and spirit and opposed to evolutionary understandings of the universe, biosphere, and human history. Dune and Dune Messiah offer critical principles and resources to produce emancipating notions of the human and spiritual practices contributing to the emergence of a more ethically and ecologically sustainable society and world. [ABSTRACT FROM AUTHOR]

The notion of portals to alternative multispaces where normalcy is subverted into magical situations has been a feature of fiction for centuries. Architects and educators Lara Lesmes and Fredrik Hellberg have catalogued some of these fictive realms and mechanisms, and developed their own augmented‐reality portal to show the results of their research. [ABSTRACT FROM AUTHOR]

The formation of bed form in alluvial rivers due to sediment transport has a significant effect on the hydraulic parameters of the flow such as bed shear stress. The formation of the bed form and its shape and geometry depends on the bed shear stress. Therefore, the relationship between bed form and flow parameters (such as bed shear stress) is complicated. In the present study; the effect of dune bed forms with different heights on bed shear stress has been investigated. Artificial dunes made by sand-cement mortar with a length of 25 cm and heights of 1, 2, 3, and 4 cm were used. In the tests of this research, flow discharge of 10, 15, 20, 25, and 30 l/s and bed slopes of 0, 0.0001, 0.0005, 0.001, and 0.0015 were used. The results showed that with increasing the relative submergence and Δ/λ, the bed shear stress increased in dune-covered beds. The formation of the dune bed form and the increase in its height leads to an increase in the bed shear stress. The bed shear stress in dunes with a height of 1, 2, 3, and 4 cm was, on average, 39, 80, 141, and 146% more than in plane beds, respectively. Moreover, form shear stress for dunes with a height of 1, 2, 3, and 4 cm was, on average, 27.37, 43, 57.11, and 58.74% of the total shear stress, respectively.

Background: Inland sand dunes are expanding and increasing mobility. Knowledge on the plants growing on them is keystone for their management. One of the largest inland dune systems in Mexico is the Médanos de Samalayuca area. Questions: How many and which species of vascular plants are in Samalayuca? Which is the distribution pattern of that flora? Are there endemisms? Are there species of conservation concern? Studied species: Vascular plants. Study site and dates: Médanos de Samalayuca protected area, northern Chihuahua, Mexico; 2017-2022. Methods: A database was generated based on literature, electronic sources, herbarium specimens, photographing, and collection and identification of materials. Distribution, endemism level and conservation status were recorded. Results: The updated checklist of vascular plants for Samalayuca includes 400 species of 246 genera and 65 families. Most species grow in Mixed desert scrub and in Sand dune vegetation. Almost a half are restricted to the Megamexico 1 region, followed by the North American element. One species is Threatened according to the Mexican Official Norm NOM-059, while two are Vulnerable and one is Almost threatened according to the IUCN. Ribes fontinale appears to be extinct. Conclusions: Considering the arid, extreme climate and the low stability of the psammophilous vegetation, the flora of Samalayuca is richer than expected. The area is home to regional and local endemics. The data and information generated here is baseline for further management programs and action planning to protect these fragile ecosystems and the adjacent communities.

The demand for oceanic resource exploration and development is increasing, and autonomous underwater vehicles (AUVs) have emerged as potential tools for ocean exploration. To meet specific operational requirements, AUVs are required to operate in close proximity to the seafloor. However, complex and changeable seafloor terrains have complex spatiotemporal characteristics, which produce unsteady hydrodynamic interference on AUVs, affecting their safety and stability. In order to investigate the hydrodynamic characteristics of AUVs in turbulent flow fields near seafloor terrains, this study selects a typical dune terrain. Based on the computational fluid dynamics (CFD) method, the flow field around an AUV near the seafloor is simulated, and the flow field is solved using the large eddy simulation (LES) method, calculating the AUV's hydrodynamic instantaneous and average characteristics, as well as flow field characteristics at different inflow velocities and distances from the seafloor. The results indicate that when the AUV is situated within the turbulent flow field caused by the terrain, its drag, lift, and pitch moment performance present significant fluctuations. Variations in total resistance are primarily caused by variations in pressure resistance. Variations in lift and pitch moment are more sensitive to variations in the flow field structure. The AUV also affects the development of the turbulent flow field near the terrain. When the AUV is in close proximity to the seafloor, it hampers the development of vortices below it. These results will offer guidance for the maneuverability and control of AUVs in practical engineering applications. [ABSTRACT FROM AUTHOR]

Searching the key words' wave-beach-dune interactions' in Web of Science, nearly 100 domestical and overseas publications since tlie 1980s have been analyzed and reviewed. This stuyd summarizes major advances at different temporal-spatial scales. The issues of integration between tliem are clarified by sorting the conceptual models and categorizing development stages. Additionally, research opportunities and challenges are identified. Studies on wave-beach-dune interactions have been initiated since 1980s and developed tlirough tlie following tliree stages: theory proposed and improved, expansion of study areas, and in-deptli exploration. The conceptual models have been developed from simple to reliable models across a range of micro-, meso-, and macro-scales. Studies were initially conducted by taking advantage of only field survey and batliyinetry maps. Nowadays, collaborated technology and metliods have been applied in studying coastal landfbnus tlirougli in-situ field monitoring, wind tunnel trial, 3S teclmologies, and numerical simulation. Study areas extended and expanded from southeast Australian coasts to Europe, South and North America, and Asian coasts. Altliougli plenty of relevant reports have been published, some issues exist. Owing to tlieir higlily temporal-spatial heterogeneity, it is difficult to find a universal conceptual model for the worldwide coastal dune systems. At the micro-scale, as the complex process of wave-tide hydrological and aeolian dynamic imposed on surfzone-beach-dune and limitation of monitoring data utility, the existing theoretical model cannot completely reveal tlie mechanism of the terrestri al -marine interface and beach-dune landfbmi response and feedback to wind dynamics. At tlie mesoscale, many mechanisms of dune response to stonn surges have been proposed, but few are from the perspective of the surfzone-beach-dune as a whole system. More case studies based on observation are needed, which will benefit in-depth exploration. Furtliennore, more long-tenn monitoring and refined models are required to build tlie bridge between fundamental process-response dynamics (events scale) and medium-long-tenn landfonns topography changes and evolution. At the macroscale, given the alongshore sediment transport and supply, sea level rise rate, and landward and seaward sediment transport, prediction models of coastal geomorphological changes induced by sea level rise should be tested and supported by multi-temporal-spatial observation and monitoring data. Future studies will continue collaborating tlie historical reports and site monitoring tecliniques with higli-resolution images interpretation to comprehensively understand the relationships between dynamic-response process and landfonns geomorphology evolution by integration of environmental variables and surfzone, beach, and dune landfonns investigation. The numerical simulation will reveal the mechanisms of wave-beach-dune interactions across micro-, meso-, and macro-scales and redefine tlieoretical concepts. [ABSTRACT FROM AUTHOR]

Facies of the Permian Lyons Sandstone are described and interpreted based on analyses of 23 cores from Larimer and Weld counties, Colorado. Here, the Lyons Sandstone consists of very fine- to medium-grained sandstone with minor silt and mudstone interbeds. The unit has five recurrent siliciclastic facies that can be grouped into two facies associations (FA). FA1 consists of (1) high-angle, cross-laminated sandstone (Facies 1; interpreted as eolian dune remnants); (2) low-angle, crosslaminated and horizontally laminated sandstone (Facies 2; interdune); and (3) chaotically bedded to folded sandstone (Facies 3; lower dune flanks). FA2, in contrast, is mainly (4) wavy- to irregularly laminated silty sandstone (Facies 4; wet to damp interdune); and (5) massive to wavy-laminated silt-rich mudstone (Facies 5; ponded water areas between dunes) with minor amounts of high-angle, cross-laminated sandstone (Facies 1) and low-angle, cross-laminated and horizontally laminated sandstone (Facies 2). FA1 is hypothesized to have been produced in an eolian system akin to those that might exist in the dunedominated portion of an erg, whereas FA2 was deposited in the intermittently wet portion of this eolian system, perhaps along erg margins or in flat dune-adjacent settings that were impacted by the water table. Isopach data suggests that the study area is on the fringe of a larger Lyons system that spans > 100,000 km², and was deposited close to the Ancestral Rockies--a paleogeography consistent with deposition in erg to erg-margin paleoenvironments. Detrital zircon populations from nearby Colorado Front Range outcrops and from 12 correlative eolian units are dominated by small, well-rounded Paleoproterozoic and Mesoproterozoic grain populations that are remarkably similar between units, signaling a well-mixed system that also received an influx of distally sourced sediment from the Appalachian orogen. Detrital zircon-based maximum depositional ages of the Lyons Sandstone and its equivalents are internally consistent with deposition of the unit during the latest Artinskian to Kungurian. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Archaeological Studies / Mutaliat-i Bastanshinasi is the property of University of Tehran and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Most restoration projects involving invasive plant eradication tend to focus on plant removal with little consideration given to how these invasives change soil microbial communities. However, soil microorganisms can determine invasibility of habitats and, in turn, be altered by invasives once established, potentially inhibiting native plant establishment. We studied soil microbial communities in coastal dunes with varying invasion intensity and different restoration approaches (herbicide, mechanical excavation) at Point Reyes National Seashore. Overall, we found evidence of a strong link between bacterial and fungal soil communities and the presence of invasives and restoration approach. Heavily invaded sites were characterized by a lower abundance of putatively identified nitrifiers, fermentative bacteria, fungal parasites, and fungal dung saprotrophs and a higher abundance of cellulolytic bacteria and a class of arbuscular mycorrhizal fungi (Archaeosporomycetes). Changes in soil microbiota did not fully dissipate following removal of invasives using herbicide, with exception of reductions in cellulolytic bacteria and Archaeosporomycetes abundance. Mechanical restoration effectively removed both invasives and soil legacy effects by inverting or “flipping” rhizome-contaminated surface soils with soils from below and may have inadvertently induced other adverse effects on soils that impeded reestablishment of native dune plants. Land managers should consider additional measures to counteract lingering legacy effects and/or focus restoration efforts in areas where legacy effects are less pronounced.

Background. The author analyzes the texts of the Dune cycle in contexts of the achievements of interdisciplinary historiography, which proposed universal methods that allow analyzing “Oriental” images in literature through the prism of constructing and deconstructing the narratives that form the image of Islam. Purpose. The purpose of the article is an “Orientalist” reinterpretation of Islamic images in the novels belonging to the Dune cycle, including the texts of the original cycle and prequels presented by Dune, Dune Messiah, Dune. Butlerian Jihad and Dune. Paul. Materials and methods. The author uses the methodological tools offered in intellectual history and studies of nationalism, including the concept of the invention of traditions, which allows us to analyze the images of Islam in science fiction as one of the invented traditions of American mass literature using the texts of the Dune cycle as sources corpus. Orientalism as a method is used to analyze Muslim motifs in the prose of F. Herbert, B. Herbert and K. Anderson, which, as the author believes, were inspired by political, ideological and religious stimuli. The author believes that the orientalist approach is an effective interpretative model for an interdisciplinary analysis of American science fiction as a space for the development of Islamic images. Results. The texts of the Dune cycle are reinterpreted as attempts to assimilate and imitate the images of Islam in popular culture. Oriental political and ideological backgrounds for the development of Muslim images in American science fiction are studied. Particular attention is paid to the analysis of the political message broadcast by the novels of the Dune cycle with the help of images of Islam. The author analyzes Muslim images through the prism of their imitation and simulation in the novels that form the Dune cycle. The author believes that the analyzed texts, being part of the wide discourse of Western cultural and political Orientalism, form the image of Islam accessible for understanding and consumption in the mass culture of modern society.

Background. The author analyzes the texts of the Dune cycle in contexts of contemporary historiography, which proposed universal methods that allow analyzing “oriental” images in literature through the prism of constructing and deconstructing the narratives that form the image of Islam. Purpose. The purpose of the article is an “orientalist” reinterpretation of Islamic images in the novels belonging to the Dune cycle, including the texts of the original cycle and prequels presented by Dune, Dune Messiah, Dune. Butlerian Jihad and Dune. Paul. Materials and methods. The author uses the methodological tools offered in intellectual history and studies of nationalism, including the concept of the invention of traditions, which allows us to analyze the images of Islam in science fiction as one of the invented traditions of American mass literature using the texts of the Dune cycle as sources corpus. Orientalism as a method is used to analyze Muslim motifs in the prose of F. Herbert, B. Herbert and K. Anderson, which, as the author believes, were inspired by political, ideological and religious stimuli. The author believes that the orientalist approach is an effective interpretative model for an interdisciplinary analysis of American science fiction as a space for the development of Islamic images. Results. It is shown that the novels through the prism of images of Islam actualize and promote a unique ideological discourse and political message. The features and forms of political protest under religious Muslim slogans are analyzed. It is studied how the mobilization potential of political Islam is perceived as a form of legitimization of social and economic protest. An expanded understanding of jihad as both a religious war and a social class conflict is analyzed. It is shown that 1) the actualization of Muslim images in American science fiction was the result of the political activation of the East, 2) the authors of the texts actualized the anti-authoritarian and emancipatory potential of Islam.

Background. The author analyzes the texts of the Dune cycle in contexts of modern historiography, including its universal methods that allow analyzing “oriental” images in literature through the prism of constructing and deconstructing narratives that form the image of Jihad as a form of political, social and religious struggle of oppressed communities and minorities. Purpose. The purpose of the article is an “orientalist” reinterpretation of the images of Jihad in the novels belonging to the Dune cycle including the prequel text presented by Dune. Butlerian Jihad and Dune. Paul. Materials and methods. The author uses the methodological tools of intellectual history and studies of nationalism, including the concept of the invention of traditions, which allows to analyze the images of Jihad in science fiction as one of the invented traditions of mass US science fiction literature using the texts of the Dune cycle. Orientalism as a method is used to analyze Muslim motifs in the prose of F. Herbert, B. Herbert and K. Anderson, which, as the author of the article presumes, were inspired by political, ideological and religious stimuli. The author states that the orientalist approach can be an effective interpretative model for an interdisciplinary analysis of American science fiction as a cultural landscape for the development of Jihad images in the Western intellectual tradition of the consumer society. Results. The ideological and political foundations for the development of images of Jihad as a social concept of American science fiction are studied in the article. The article analyzes the ideological origins, as well as the political prototypes and archetypes of the Muslim radicals of the Dune cycle. The author analyzes the ideological discourse of radical Islamism, presented in American mass culture through the prism of religious war images as attempts to implement the doctrine and social liberation. The article analyzes the attempts of American writers to form a positive and attractive image of a radical political protest under religious Muslim slogans. Therefore, it is shown that American science fiction prose actualized the mobilization potential of Islamism, imagining and inventing it as a form of legitimate social and economic protest of the oppressed masses against discrimination. The author presumes that some American authors revised the images of Jihad, offering its interpretation as a radical social and class protest based on religious legitimation.

Copyright of Journal of Communication Theory & Research / Iletisim Kuram ve Arastirma Dergisi is the property of Gazi University, Faculty of Communication and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The formation of bed form in alluvial rivers due to sediment transport has a significant effect on the hydraulic parameters of the flow such as bed shear stress. The formation of the bed form and its shape and geometry depends on the bed shear stress. Therefore, the relationship between bed form and flow parameters (such as bed shear stress) is complicated. In the present study; the effect of dune bed forms with different heights on bed shear stress has been investigated. Artificial dunes made by sand-cement mortar with a length of 25 cm and heights of 1, 2, 3, and 4 cm were used. In the tests of this research, flow discharge of 10, 15, 20, 25, and 30 l/s and bed slopes of 0, 0.0001, 0.0005, 0.001, and 0.0015 were used. The results showed that with increasing the relative submergence and Δ/λ, the bed shear stress increased in dune-covered beds. The formation of the dune bed form and the increase in its height leads to an increase in the bed shear stress. The bed shear stress in dunes with a height of 1, 2, 3, and 4 cm was, on average, 39, 80, 141, and 146% more than in plane beds, respectively. Moreover, form shear stress for dunes with a height of 1, 2, 3, and 4 cm was, on average, 27.37, 43, 57.11, and 58.74% of the total shear stress, respectively. [ABSTRACT FROM AUTHOR]

Liquid argon time projection chambers (LArTPCs) are widely used in particle detection for their tracking and calorimetric capabilities. The particle physics community actively builds and improves high-quality simulators for such detectors in order to develop physics analyses in a realistic setting. The ability of these simulators to mimic real, measured data is limited by the modeling of the physical detectors used for data collection. This modeling can be improved by performing dedicated calibration measurements. Conventional approaches calibrate individual detector parameters or processes one at a time. However, the impact of detector processes is entangled, making this a poor description of the underlying physics. We introduce a differentiable simulator that enables a gradient-based optimization, allowing for the first time a simultaneous calibration of all detector parameters. We describe the procedure of making a differentiable simulator, highlighting the challenges of retaining the physics quality of the standard, non-differentiable version while providing meaningful gradient information. We further discuss the advantages and drawbacks of using our differentiable simulator for calibration. Finally, we provide a starting point for extensions to our approach, including applications of the differentiable simulator to physics analysis pipelines.