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Journal articles on the topic 'Pertuso Spring'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Giuseppe, Sappa*1 Flavia Ferranti2 &. Francesco Maria De Filippi3. "VULNERABILITY ASSESSMENT OF THE KARST AQUIFER FEEDING THE PERTUSO SPRING (CENTRAL ITALY): COMPARISON BETWEEN DIFFERENT APPLICATIONS OF COP METHOD." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 6, no. 6 (2017): 483–92. https://doi.org/10.5281/zenodo.817855.

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Karst aquifers vulnerability assessment and mapping are important tools for improved sustainable management and protection of karst groundwater resources. In this paper, in order to estimate the vulnerability degree of the karst aquifer feeding the Pertuso Spring in Central Italy, COP method has been applied starting from two different discretization approaches: using a polygonal layer and the Finite Square Elements (FSE). Therefore, the hydrogeological catchment basin has been divided into 72 polygons, related to the outcropping lithology and the karst features. COP method has been applied to

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Sappa, Giuseppe, Flavia Ferranti, Francesco De Filippi, and Giulia Cardillo. "Mg2+-Based Method for the Pertuso Spring Discharge Evaluation." Water 9, no. 1 (2017): 67. http://dx.doi.org/10.3390/w9010067.

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Filippi, Francesco Maria De, Silvia Iacurto, Gerardo Grelle, and Giuseppe Sappa. "Magnesium as Environmental Tracer for Karst Spring Baseflow/Overflow Assessment—A Case Study of the Pertuso Karst Spring (Latium Region, Italy)." Water 13, no. 1 (2021): 93. http://dx.doi.org/10.3390/w13010093.

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Following a previous research carried out on the same site, this paper presents the update of the Mg2+ based method for the estimation of Pertuso Spring discharge, located in Central Italy. New collected data confirmed the validity of the proposed model and the conservative behaviour of Mg2+ for groundwater related to the Pertuso Spring aquifer. Further analysis allowed to obtain a local linear relationship between magnesium concentration and total spring discharge (including exploitation rate), regardless of the mixing model proposed with the Aniene River. As regards two samples which fall ou

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Grisafi, S. "Bead–spring macromolecules that perturb the solvent." Journal of Applied Polymer Science 41, no. 78 (1990): 1723–35. http://dx.doi.org/10.1002/app.1990.070410730.

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Grisafi, S. "Bead-spring macromolecules that perturb the solvent: Scleronomic, monogenic, molecular forces." Journal of Applied Polymer Science 42, no. 8 (1991): 2337–48. http://dx.doi.org/10.1002/app.1991.070420825.

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Calvayrac, Lionel. "La source d’Usclats, une singularité dans le système karstique entre les pertes du Thoré et la source du Jaur (Hérault)." Karstologia : revue de karstologie et de spéléologie physique 78, no. 1 (2021): 19–28. https://doi.org/10.3406/karst.2021.3260.

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The Usclats spring, a strangeness in the karstic system between the Thoré losses and the Jaur spring (Hérault). In 1948, Bernard Gèze established that the waters of the Thoré stream, on the Atlantic side of the Montagne Noire, resurface at the Usclats spring on the Mediterranean side, thus highlighting a spectacular karstic piracy under the watershed. The Usclats waters then revert and finally resurface at the Jaur spring. B. Gèze had put this punctual resurgence at Usclats on the account of the intersection of the karstic circulation by the topographic surface. New fieldwork shows that the Us

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Dematteis, Antonio, Riccardo Torri, Bertrand Chereau, and Michel Ducrot. "Groundwater in the Perthus Tunnel: feedback after excavation." Acque Sotterranee - Italian Journal of Groundwater 10, no. 2 (2021): 65–71. http://dx.doi.org/10.7343/as-2021-518.

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This work presents the experiences gained during the construction of the Perthus high-speed railway tunnel (8.4 km long), as regards water inflow management, analysis of the impact on surface-waters and groundwater, monitoring of piezometers and water quality control, soil injections. The excavation met granodiorites, schists, diorites, gneisses, black schists and coarse river deposits (pebbles and blocks) near the north portal. Some important tectonic structures, and associated groundwater flow, were also crossed. Finally, a geothermal study on the hydrothermal springs Le Boulou, which were n

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Zheng, Fei, Jianping Li, Yanjie Li, Sen Zhao, and Difei Deng. "Influence of the Summer NAO on the Spring-NAO-Based Predictability of the East Asian Summer Monsoon." Journal of Applied Meteorology and Climatology 55, no. 7 (2016): 1459–76. http://dx.doi.org/10.1175/jamc-d-15-0199.1.

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AbstractThe dominant mode of atmospheric circulation over the North Atlantic region is the North Atlantic Oscillation (NAO). The boreal spring NAO may imprint its signal on contemporaneous sea surface temperature (SST), leading to a North Atlantic SST tripolar pattern (NAST). This pattern persists into the following summer and modulates the East Asian summer monsoon (EASM). Previous studies have shown that the summer NAST is caused mainly by the preceding spring NAO, whereas the contemporaneous summer NAO plays a secondary role. The results of this study illustrate that, even if the summer NAO

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Farris, Dominic James, Benjamin D. Robertson, and Gregory S. Sawicki. "Elastic ankle exoskeletons reduce soleus muscle force but not work in human hopping." Journal of Applied Physiology 115, no. 5 (2013): 579–85. http://dx.doi.org/10.1152/japplphysiol.00253.2013.

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Inspired by elastic energy storage and return in tendons of human leg muscle-tendon units (MTU), exoskeletons often place a spring in parallel with an MTU to assist the MTU. However, this might perturb the normally efficient MTU mechanics and actually increase active muscle mechanical work. This study tested the effects of elastic parallel assistance on MTU mechanics. Participants hopped with and without spring-loaded ankle exoskeletons that assisted plantar flexion. An inverse dynamics analysis, combined with in vivo ultrasound imaging of soleus fascicles and surface electromyography, was use

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Lin, M., T. Holloway, G. R. Carmichael, and A. M. Fiore. "Quantifying pollution inflow and outflow over East Asia in spring with regional and global models." Atmospheric Chemistry and Physics 10, no. 9 (2010): 4221–39. http://dx.doi.org/10.5194/acp-10-4221-2010.

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Abstract. Understanding the exchange processes between the atmospheric boundary layer and the free troposphere is crucial for estimating hemispheric transport of air pollution. Most studies of hemispheric air pollution transport have taken a large-scale perspective using global chemical transport models with fairly coarse spatial and temporal resolutions. In support of United Nations Task Force on Hemispheric Transport of Air Pollution (TF HTAP; www.htap.org), this study employs two high-resolution atmospheric chemistry models (WRF-Chem and CMAQ; 36×36 km) driven with chemical boundary conditi

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Xu, Liang, Xiaohuan Liu, Huiwang Gao, et al. "Long-range transport of anthropogenic air pollutants into the marine air: insight into fine particle transport and chloride depletion on sea salts." Atmospheric Chemistry and Physics 21, no. 23 (2021): 17715–26. http://dx.doi.org/10.5194/acp-21-17715-2021.

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Abstract. Long-range transport of anthropogenic air pollutants from East Asia can affect the downwind marine air quality during spring and winter. Long-range transport of continental air pollutants and their interaction with sea salt aerosol (SSA) significantly modify the radiative forcing of marine aerosols and influence ocean biogeochemical cycling. Previous studies poorly characterize variations of aerosol particles along with air mass transport from the continental edge to the remote ocean. Here, the research ship R/V Dongfanghong 2 traveled from the eastern China seas (ECS) to the northwe

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12

Jindrich, Devin L., and Robert J. Full. "Dynamic stabilization of rapid hexapedal locomotion." Journal of Experimental Biology 205, no. 18 (2002): 2803–23. http://dx.doi.org/10.1242/jeb.205.18.2803.

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SUMMARYTo stabilize locomotion, animals must generate forces appropriate to overcome the effects of perturbations and to maintain a desired speed or direction of movement. We studied the stabilizing mechanism employed by rapidly running insects by using a novel apparatus to perturb running cockroaches (Blaberus discoidalis). The apparatus used chemical propellants to accelerate a small projectile, generating reaction force impulses of less than 10 ms duration. The apparatus was mounted onto the thorax of the insect, oriented to propel the projectile laterally and loaded with propellant suffici

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Zhang, Daming, Zijian Wang, and Fangjin Sun. "Somersault Foraging and Elite Opposition-Based Learning Dung Beetle Optimization Algorithm." Applied Sciences 14, no. 19 (2024): 8624. http://dx.doi.org/10.3390/app14198624.

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To tackle the shortcomings of the Dung Beetle Optimization (DBO) Algorithm, which include slow convergence speed, an imbalance between exploration and exploitation, and susceptibility to local optima, a Somersault Foraging and Elite Opposition-Based Learning Dung Beetle Optimization (SFEDBO) Algorithm is proposed. This algorithm utilizes an elite opposition-based learning strategy as the method for generating the initial population, resulting in a more diverse initial population. To address the imbalance between exploration and exploitation in the algorithm, an adaptive strategy is employed to

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14

Meric, Engin, Niyazi Avsar, M. Baki Yokes, et al. "Morphological abnormalities in benthic foraminifers of the Antalya coast." Micropaleontology 54, no. 3-4 (2008): 241–76. http://dx.doi.org/10.47894/mpal.54.3.04.

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Many researchers report abnormal testmorphologies in benthic foraminifers and some suggest that anthropogenic pollutionmay be one of the causes for these anomalies. Some species are even used as bioindicators of anthropogenic pollution. However, environmental stress may be exerted by natural factors also, such as hypersalinity, periodical acidification and strong hydrodynamics. We observed large populations of morphologically abnormal foraminifer individuals in 227 recent sediment samples on the southwestern coast of Antalya (Turkey). In 117 of our samples we found morphologically abnormal Tex

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15

Zhang, Tuantuan, Bohua Huang, Song Yang, and James L. Kinter. "Predictable Patterns of the Atmospheric Low-Level Circulation over the Indo-Pacific Region in Project Minerva: Seasonal Dependence and Intraensemble Variability." Journal of Climate 31, no. 20 (2018): 8351–79. http://dx.doi.org/10.1175/jcli-d-17-0577.1.

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The predictable patterns and intraensemble variability of monthly 850-hPa zonal wind over the tropical Indo-Pacific region are investigated using 7-month hindcasts for 1983–2009 from Project Minerva. When applied to the ensemble hindcasts initialized on 1 May and 1 November, a maximum signal-to-noise empirical orthogonal function analysis identifies the patterns of high predictability as the hindcasts progress. For both initial months, the most predictable patterns are associated with El Niño–Southern Oscillation (ENSO). The second predictable patterns with May initialization reflect the anoma

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16

Nguyen, Thi Hue, and Quoc Tuan Do. "PREVALENCE OF SOME PATHOGENS DETECTED BY MULTIPLEX REAL-TIME PCR IN HOSPITALISED CHILDREN WITH ACUTE RESPIRATORY INFECTIONS IN BAC GIANG PROVINCIAL GENERAL HOSPITAL." Tạp chí Truyền nhiễm Việt Nam 4, no. 44 (2023): 9–16. http://dx.doi.org/10.59873/vjid.v4i44.323.

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Objectives: Investigate the infection rate of some microorganisms using multiplex real-time PCR techniques in inpatient children with acute respiratory infection (ARI) in Bac Giang Provincial General Hospital.Subjects and methods: A retrospective cross-sectional descriptive study. There were 450 cases ARI children treated at the Pediatrics Department in Bac Giang Provincial General Hospital though medical records with multiplex real-time PCR results of nasopharyngeal swab testing using both RP1 and RP4 kitswere included in the study.Results: Among 450 ARI children, the age group of under 60 mo

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17

Ma, D., Q. Jing, YP Xu, et al. "Using ensemble-mean climate scenarios for future crop yield projections: a stochastic weather generator approach." Climate Research 83 (May 6, 2021): 161–71. http://dx.doi.org/10.3354/cr01646.

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Using climate scenarios from only 1 or a small number of global climate models (GCMs) in climate change impact studies may lead to biased assessment due to large uncertainty in climate projections. Ensemble means in impact projections derived from a multi-GCM ensemble are often used as best estimates to reduce bias. However, it is often time consuming to run process-based models (e.g. hydrological and crop models) in climate change impact studies using numerous climate scenarios. It would be interesting to investigate if using a reduced number of climate scenarios could lead to a reasonable es

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18

Koutsikopoulos, Constantin, Didier Dorel, and Yves Desaunay. "Movement of Sole (Solea Solea) in the Bay of Biscay: Coastal Environment and Spawning Migration." Journal of the Marine Biological Association of the United Kingdom 75, no. 1 (1995): 109–26. http://dx.doi.org/10.1017/s002531540001523x.

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During the studies on sole recruitment in the Bay of Biscay, transport process attracted considerable attention and led to important research on migration and dispersal. The last step to complete the study of the spatial component of the life cycle of sole in the northern part of the Bay of Biscay is the offshore migration of young adults towards the spawning grounds. the present study deals with this pre-spawning migration. the main question concerns the kind of linkage between nurseries and spawning grounds. The principal results are based on extensive tagging experiments carried out in autu

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19

Dobler, C., G. Bürger, and J. Stötter. "Simulating future precipitation extremes in a complex Alpine catchment." Natural Hazards and Earth System Sciences 13, no. 2 (2013): 263–77. http://dx.doi.org/10.5194/nhess-13-263-2013.

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Abstract. The objectives of the present investigation are (i) to study the effects of climate change on precipitation extremes and (ii) to assess the uncertainty in the climate projections. The investigation is performed on the Lech catchment, located in the Northern Limestone Alps. In order to estimate the uncertainty in the climate projections, two statistical downscaling models as well as a number of global and regional climate models were considered. The downscaling models applied are the Expanded Downscaling (XDS) technique and the Long Ashton Research Station Weather Generator (LARS-WG).

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20

Jiang, Yiquan, Zheng Lu, Xiaohong Liu, et al. "Impacts of global open-fire aerosols on direct radiative, cloud and surface-albedo effects simulated with CAM5." Atmospheric Chemistry and Physics 16, no. 23 (2016): 14805–24. http://dx.doi.org/10.5194/acp-16-14805-2016.

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Abstract. Aerosols from open-land fires could significantly perturb the global radiation balance and induce climate change. In this study, Community Atmosphere Model version 5 (CAM5) with prescribed daily fire aerosol emissions is used to investigate the spatial and seasonal characteristics of radiative effects (REs, relative to the case of no fires) of open-fire aerosols including black carbon (BC) and particulate organic matter (POM) from 2003 to 2011. The global annual mean RE from aerosol–radiation interactions (REari) of all fire aerosols is 0.16 ± 0.01 W m−2 (1σ uncertainty), mainly due

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21

Tomlinson, R. D. "Combined eye-head gaze shifts in the primate. III. Contributions to the accuracy of gaze saccades." Journal of Neurophysiology 64, no. 6 (1990): 1873–91. http://dx.doi.org/10.1152/jn.1990.64.6.1873.

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1. The behavior of the combined eye-head gaze saccade mechanism was investigated in the rhesus monkey under both normal circumstances and in the presence of perturbations delivered to the head by a torque motor. Animals were trained to follow a target light that stepped at regular intervals through an angle of 68 degrees (+/- 34 degrees with respect to the midsagittal plane). Thus all primary saccades were center crossing. On randomly occurring trials the torque motor was pulsed so as to perturb the trajectory of the head, thus allowing us to assess both the functional state of the vestibulooc

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22

Sappa, Giuseppe, and Flavia Ferranti. "An integrated approach to the Environmental Monitoring Plan of the Pertuso spring (Upper Valley of Aniene River)." Acque Sotterranee - Italian Journal of Groundwater 3, no. 2 (2014). http://dx.doi.org/10.7343/as-073-14-0099.

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Quantitative assessment of groundwater and surface water is an important tool for sustainable management and protection of these important resources. This paper deals with the design of a multi-disciplinary monitoring plan related to the catchment project of the Pertuso spring, in the Upper Valley of Aniene River, which is going to be exploited to supply an important water network in the South part of Roma district. According to the Legislative Decree 152/2006, as modified by DM 260/2010, any infrastructure design should take in consideration an Environmental Monitoring Plan for the hydrogeolo

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23

Sappa, Giuseppe, Flavia Ferranti, and Francesco Maria De Filippi. "A proposal of conceptual model for Pertuso Spring discharge evaluation in the Upper Valley of Aniene River." Acque Sotterranee - Italian Journal of Groundwater, October 3, 2016. http://dx.doi.org/10.7343/as-2016-224.

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The Upper Aniene River basin is part of a large karst aquifer, which interacts with the river, and represents the most important water resource in the southeast part of Latium Region, Central Italy, used for drinking, agriculture and hydroelectric supplies. This work provides hydrogeochemical data and their interpretations for 1 spring and 2 cross section of Aniene River, monitored from July 2014 to December 2015, in the Upper Valley of Aniene River, to identify flow paths and hydrogeochemical processes governing groundwater-surface water interactions in this region. These activities deal with

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Kollipara, Keerthi Deepika, J. Vijay Kumar, Prasanthi R, Srinivasa Rao Sura, M. S. Pradeep Kumar Patnaik, and R. S. Ravi Sankar. "Energy Efficient Photovoltaic-Electric Spring for Real and Reactive Power Control in Demand-Side Management." Frontiers in Energy Research 10 (July 13, 2022). http://dx.doi.org/10.3389/fenrg.2022.762931.

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Photovoltaic-electric spring (PV-ES) is a promising topology to utilize widespread residential roof-top photovoltaic systems in demand-side management. Power control for an integrated configuration of photovoltaic-electric spring system to achieve dynamic supply-demand balance in power distribution networks is presented. Extraction of maximum power from PV panel using Perturb and Observe algorithm along with boost converter are designed. This power is given as input to the DC link of the Electric Spring. The modeling and design of the integrated system are detailed. Extensive simulations are c

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Yang, Ruizhi, Peng Liu, Yun Tian, et al. "Interannual variation in evapotranspiration in an urban forest reserve with respect to drought." Frontiers in Forests and Global Change 6 (September 1, 2023). http://dx.doi.org/10.3389/ffgc.2023.1218005.

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IntroductionA warming global climate is expected to perturb the hydrological cycle, resulting in deviations in both frequency and duration of drought and thus being hypothesized to lead to interannual variation in evapotranspiration (ET). Interannual variation in ET in urban forest ecosystems in response to drought remains poorly understood.MethodsHere, ET in an urban forest reserve in the megalopolis of Beijing was investigated using eddy-covariance measurements collected over six consecutive years (2012–2017).ResultsThe mean annual cumulative ET was 462 ± 83mm (±first standard deviation), wi

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26

Stone, Robert S., Ellsworth G. Dutton, Joyce M. Harris, and David Longenecker. "Earlier spring snowmelt in northern Alaska as an indicator of climate change: EARLY SNOWMELT AS AN INDICATOR OF CLIMATE CHANGE." May 22, 2002. https://doi.org/10.1029/2000jd000286.

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Predictions of global circulation models (GCMs) that account for increasing concentrations of greenhouse gases and aerosols in the atmosphere show that warming in the Arctic will be amplified in response to the melting of sea ice and snow cover. There is now conclusive evidence that much of the Arctic has warmed in recent decades. Northern Alaska is one region where significant warming has occurred, especially during winter and spring. We investigate how the changing climate of northern Alaska has influenced the annual cycle of snow cover there and in turn, how changes in snow cover perturb th

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Juel Larsen, Lasse, and Bo Kampmann Walther. "Fear of Monsters: Toward an Understanding of the Threat of the Computational Monster Read Through the Theoretical Lens of Game-Play." Games and Culture, November 13, 2023. http://dx.doi.org/10.1177/15554120231211376.

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This article analyzes the configuration of fear generated by the computational monster in computer games. We view the monster as a computational entity, which we approach through our theory of game-play coupled with the concepts of loss aversion and endowment effect. Of particular interest is player perception of the threat posed by monsters as they perturb the experience of progression and the sensation of control within the game. We scrutinize this aspect from a situational as well as an existential perspective. Furthermore, we advance an analytical scheme of the threat of the computational

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28

Chen, Lingle, Kerstin Schepanski, Anya J. Crocker, Chuang Xuan, and Paul A. Wilson. "Dust source activation frequency across East Asia." Environmental Research Letters, May 30, 2025. https://doi.org/10.1088/1748-9326/addee6.

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Abstract Plumes of mineral dust in East Asia deleteriously impact the health and livelihoods of hundreds of millions of people in Mongolia, China, Korea, and Japan and perturb Earth’s energy balance and climate. However, the sources of this dust are not well-documented, limiting understanding of dust emissions. Here, we systematically quantify dust source activation frequency (DSAF) across East Asia (80–130°E; 27–52°N) between January 2016 and December 2023. Our data reveal a vast dust-active area extending from the Tibetan Plateau in the southwest to the Huin Bair Sandy Land in the northeast,

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Decker, W. J., J. Henrickson, M. Mukherjee, C. J. Burcal, and A. B. Rosen. "Sensory organization during balance and gait in people with and without chronic ankle instability." Frontiers in Sports and Active Living 7 (July 2, 2025). https://doi.org/10.3389/fspor.2025.1569407.

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Lateral ankle sprains are the most common musculoskeletal injury and can develop into chronic ankle instability (CAI). People with CAI rely more on visual and somatosensory information to maintain stability in static and dynamic tasks. Researchers use the Sensory Organization Test (SOT) to systematically perturb the visual and somatosensory inputs to assess sensory reweighting through changes in double-leg balance in six increasingly difficult conditions. Similarly, the Locomotor Sensory Organization Test (LSOT) perturbs visual and somatosensory inputs to assess sensory reweighting during gait

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