المؤلفون: Kim, Hyoun S., Cassetta, Briana D., Hodgins, David C., McGrath, Daniel S., Tomfohr-Madsen, Lianne M., Tavares, Hermano

المصدر: Brazilian Journal of Psychiatry. December 2018 40(4)

مصطلحات موضوعية: Disordered gambling, psychosis, addictive behaviors, comorbidity

الوصف: Objective: While it has been shown that disordered gamblers with psychosis are at increased risk for comorbid psychopathology, it is unclear whether this dual-diagnosis population is also at greater risk of problematic engagement with comorbid addictive behaviors. Methods: We tested for association between disordered gambling with psychosis and comorbid addictive behaviors in a sample of 349 treatment-seeking disordered gamblers. Results: Twenty-five (7.2%) disordered gamblers met criteria for psychosis. Disordered gamblers with psychosis were no more likely to meet diagnostic criteria for current alcohol/substance use disorder than disordered gamblers without psychosis. However, this dual-disorder population reported greater misuse of shopping, food bingeing, caffeine, and prescription drugs. When controlling for multiple comparisons, binge eating was the only addictive behavior to remain significant. Conclusion: Given these findings, a comprehensive assessment of addictive behaviors – specifically food bingeing – in this population may be warranted.

وصف الملف: text/html

الوصول الحر: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-44462018000400441Test

المؤلفون: Bonnell, Randall, McGrath, Daniel, Tarricone, Jack, Marshall, Hans-Peter, Bump, Ella, Duncan, Caroline, Kampf, Stephanie, Lou, Yunling, Olsen-Mikitowicz, Alex, Sears, Megan, Williams, Keith, Zeller, Lucas, Zheng, Yang

مصطلحات موضوعية: article, Verlagsveröffentlichung

الوصف: Snow provides critical water resources for billions of people, making the remote sensing of snow water equivalent (SWE) a highly prioritized endeavor, particularly given current and projected climate change impacts. Synthetic Aperture Radar (SAR) is a promising method for remote sensing of SWE because radar penetrates snow and SAR interferometry (InSAR) can be used to estimate changes in SWE (ΔSWE) between SAR acquisitions. We calculated ΔSWE retrievals from 10 NASA L-band Uninhabited Aerial Vehicle SAR (UAVSAR) acquisitions in northern Colorado during the winters of 2020 and 2021 and evaluated the retrievals against measurements of SWE from ground-penetrating radar (GPR) and terrestrial lidar scans (TLS) collected as part of the NASA SnowEx 2020 and 2021 Time Series Campaigns. Next, we evaluated the full UAVSAR time series at the northern Colorado sites using SWE measured at seven automated stations and ascertained whether coherence can be used as an accuracy metric for ΔSWE retrievals. For single InSAR pairs, UAVSAR ΔSWE retrievals displayed high correlation with TLS and GPR ΔSWE retrievals (overall r = 0.72–0.79) and yielded an RMSE of 19–22 mm. When compared to SWE at seven automated stations, cumulative SWE from UAVSAR retrievals exhibited poor agreement in 2020, but high agreement in 2021. We found that SWE can be reliably retrieved, even for lower coherences, as RMSE values ranged by <10 mm from coherences of 0.10 to 0.90. The upcoming NASA-ISRO SAR satellite mission, with a 12-day revisit period, offers an exciting opportunity to apply this methodology globally, but further quantification of limitations is necessary, particularly in forested environments and as the snowpack begins to melt.

وصف الملف: electronic

العلاقة: https://doi.org/10.5194/egusphere-2024-236Test; https://noa.gwlb.de/receive/cop_mods_00071428Test; https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00069713/egusphere-2024-236.pdfTest; https://egusphere.copernicus.org/preprints/2024/egusphere-2024-236/egusphere-2024-236.pdfTest

الإتاحة: https://doi.org/10.5194/egusphere-2024-236Test
https://noa.gwlb.de/receive/cop_mods_00071428Test
https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00069713/egusphere-2024-236.pdfTest
https://egusphere.copernicus.org/preprints/2024/egusphere-2024-236/egusphere-2024-236.pdfTest

المؤلفون: Zeller, Lucas, McGrath, Daniel, McCoy, Scott W., Jacquet, Jonathan

مصطلحات موضوعية: article, Verlagsveröffentlichung

الوصف: Supraglacial lakes (SGLs) play an important role in debris-covered glacier (DCG) systems by enabling efficient interactions between the supraglacial, englacial, and subglacial environments. Developing a better understanding of the short-term and long-term development of these features is needed to constrain DCG evolution and the hazards posed to downstream communities, ecosystems, and infrastructure from rapid drainage. In this study, we present an analysis of supraglacial lakes on eight DCGs in the Khumbu region of Nepal by automating SGL identification in PlanetScope, Sentinel-2, and Landsat 5–9 images. We identify a regular annual cycle in SGL area, with lakes covering approximately twice as much area during their maximum annual extent (in the pre-monsoon season) than their minimum annual extent (in the post-monsoon season). The high spatiotemporal resolution of PlanetScope imagery (∼ daily, 3 m) shows that this cycle is driven by the appearance and expansion of small lakes in the upper debris-covered regions of these glaciers throughout the winter. Decadal-scale expansion of large, near-terminus lakes was identified on four of the glaciers (Khumbu, Lhotse, Nuptse, and Ambulapcha), while the remaining four showed no significant increases over the study period. The seasonal variation in SGL area is of comparable or greater magnitude as decadal-scale changes, highlighting the importance of accounting for this seasonality when interpreting long-term records of SGL changes from sparse observations. The complex spatiotemporal patterns revealed in our analysis are not captured in existing regional-scale glacial lake databases, suggesting that more targeted efforts are needed to capture the true variability of SGLs on large scales.

وصف الملف: electronic

العلاقة: The Cryosphere -- ˜Theœ Cryosphere -- http://www.bibliothek.uni-regensburg.de/ezeit/?2393169Test -- http://www.the-cryosphere.netTest/ -- 1994-0424; https://doi.org/10.5194/tc-18-525-2024Test; https://noa.gwlb.de/receive/cop_mods_00071499Test; https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00069779/tc-18-525-2024.pdfTest; https://tc.copernicus.org/articles/18/525/2024/tc-18-525-2024.pdfTest

الإتاحة: https://doi.org/10.5194/tc-18-525-2024Test
https://noa.gwlb.de/receive/cop_mods_00071499Test
https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00069779/tc-18-525-2024.pdfTest
https://tc.copernicus.org/articles/18/525/2024/tc-18-525-2024.pdfTest

المؤلفون: Byers, Alton C., Somos-Valenzuela, Marcelo, Shugar, Dan H., McGrath, Daniel, Chand, Mohan B., Avtar, Ram

مصطلحات موضوعية: article, Verlagsveröffentlichung

الوصف: Beginning in December 2020, a series of small to medium, torrent-like pulses commenced upon a historic debris cone located within the Nupchu Valley, Kanchenjunga Conservation Area (KCA), Nepal. Sometime between 16 and 21 August 2022 a comparatively large ice-debris avalanche event occurred, covering an area of 0.6 km2 with a total estimated volume of order 106 m3. The area of the debris cone left by the August 2022 event increased the historic debris cone area by 0.2 km2 (total area 0.6 km2). Although no human or livestock deaths occurred, the increase in torrent-like pulses of debris upon this historic debris cone since 2020 exemplifies a style of mass movement that may become increasingly common as air temperatures rise in the region. Although the magnitude of this event was small compared to events like the 2021 Chamoli avalanche, the widespread distribution and frequency of comparable events present a substantial, and potentially increasing, hazard across High Mountain Asia.

وصف الملف: electronic

العلاقة: The Cryosphere -- ˜Theœ Cryosphere -- http://www.bibliothek.uni-regensburg.de/ezeit/?2393169Test -- http://www.the-cryosphere.netTest/ -- 1994-0424; https://doi.org/10.5194/tc-18-711-2024Test; https://noa.gwlb.de/receive/cop_mods_00071671Test; https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00069939/tc-18-711-2024.pdfTest; https://tc.copernicus.org/articles/18/711/2024/tc-18-711-2024.pdfTest

الإتاحة: https://doi.org/10.5194/tc-18-711-2024Test
https://noa.gwlb.de/receive/cop_mods_00071671Test
https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00069939/tc-18-711-2024.pdfTest
https://tc.copernicus.org/articles/18/711/2024/tc-18-711-2024.pdfTest

المؤلفون: Vandecrux, Baptiste, Box, Jason E., Ahlstrøm, Andreas P., Andersen, Signe B., Bayou, Nicolas, Colgan, William T., Cullen, Nicolas J., Fausto, Robert S., Haas-Artho, Dominik, Heilig, Achim, Houtz, Derek A., How, Penelope, Iosifescu Enescu, Ionut, Karlsson, Nanna B., Kurup Buchholz, Rebecca, Mankoff, Kenneth D., McGrath, Daniel, Molotch, Noah P., Perren, Bianca, Revheim, Maiken K., Rutishauser, Anja, Sampson, Kevin, Schneebeli, Martin, Starkweather, Sandy, Steffen, Simon, Weber, Jeff, Wright, Patrick J., Zwally, Henry Jay, Steffen, Konrad

مصطلحات موضوعية: article, Verlagsveröffentlichung

الوصف: The Greenland Climate Network (GC-Net) consists of 31 automatic weather stations (AWSs) at 30 sites across the Greenland Ice Sheet. The first site was initiated in 1990, and the project has operated almost continuously since 1995 under the leadership of the late Konrad Steffen. The GC-Net AWS measured air temperature, relative humidity, wind speed, atmospheric pressure, downward and reflected shortwave irradiance, net radiation, and ice and firn temperatures. The majority of the GC-Net sites were located in the ice sheet accumulation area (17 AWSs), while 11 AWSs were located in the ablation area, and two sites (three AWSs) were located close to the equilibrium line altitude. Additionally, three AWSs of similar design to the GC-Net AWS were installed by Konrad Steffen's team on the Larsen C ice shelf, Antarctica. After more than 3 decades of operation, the GC-Net AWSs are being decommissioned and replaced by new AWSs operated by the Geological Survey of Denmark and Greenland (GEUS). Therefore, making a reassessment of the historical GC-Net AWS data is necessary. We present a full reprocessing of the historical GC-Net AWS dataset with increased attention to the filtering of erroneous measurements, data correction and derivation of additional variables: continuous surface height, instrument heights, surface albedo, turbulent heat fluxes, and 10 m ice and firn temperatures. This new augmented GC-Net level-1 (L1) AWS dataset is now available at https://doi.org/10.22008/FK2/VVXGUTTest (Steffen et al., 2023) and will continue to be refined. The processing scripts, latest data and a data user forum are available at https://github.com/GEUS-Glaciology-and-Climate/GC-Net-level-1-data-processingTest (last access: 30 November 2023). In addition to the AWS data, a comprehensive compilation of valuable metadata is provided: maintenance reports, yearly pictures of the stations and the station positions through time. This unique dataset provides more than 320 station years of high-quality atmospheric data and is available following ...

وصف الملف: electronic

العلاقة: Earth System Science Data -- http://www.earth-syst-sci-data.net/volumes_and_issues.htmlTest -- http://www.bibliothek.uni-regensburg.de/ezeit/?2475469Test -- 1866-3516; https://doi.org/10.5194/essd-15-5467-2023Test; https://noa.gwlb.de/receive/cop_mods_00070242Test; https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00068598/essd-15-5467-2023.pdfTest; https://essd.copernicus.org/articles/15/5467/2023/essd-15-5467-2023.pdfTest

الإتاحة: https://doi.org/10.5194/essd-15-5467-2023Test
https://noa.gwlb.de/receive/cop_mods_00070242Test
https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00068598/essd-15-5467-2023.pdfTest
https://essd.copernicus.org/articles/15/5467/2023/essd-15-5467-2023.pdfTest

المؤلفون: Zeller, Lucas, McGrath, Daniel, McCoy, Scott W., Jacquet, Jonathan

مصطلحات موضوعية: article, Verlagsveröffentlichung

الوصف: Supraglacial lakes (SGLs) play an important role in debris-covered glacier (DCG) systems by enabling efficient interactions between the subglacial, englacial, and supraglacial environments. Developing a better understanding of the short-term and long-term development of these features is needed to constrain DCG evolution and the hazards posed to downstream communities, ecosystems, and infrastructure from rapid drainage. In this study we present an analysis of supraglacial lakes on eight DCGs in the Khumbu region of Nepal by automating SGL identification in PlanetScope, Sentinel-2, and Landsat 5-9 images. We identify a regular annual cycle in SGL area, with lakes covering approximately twice as much area during their maximum annual extent (in the pre-monsoon) than their minimum (in the post-monsoon season). The high spatiotemporal resolution of PlanetScope imagery (~daily, 3 meter) shows that this cycle is driven by the appearance and expansion of small lakes in the upper debris-covered regions of these glaciers throughout the winter. Decadal-scale expansion of large, near-terminus lakes was identified on four of the glaciers (Khumbu, Lhotse, Nuptse, and Ambulapcha), while the remaining four showed no significant increases over the study period. The annual variation in SGL area is of comparable or greater magnitude as decadal-scale changes, highlighting the importance of accounting for this seasonality when interpreting long-term records of SGL changes from sparse observations. The complex spatiotemporal patterns revealed in our analysis are not captured in existing regional-scale glacial lake databases, suggesting that more targeted efforts are needed to capture the true variability of SGLs on large scales.

وصف الملف: electronic

العلاقة: https://doi.org/10.5194/egusphere-2023-1684Test; https://noa.gwlb.de/receive/cop_mods_00067990Test; https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00066427/egusphere-2023-1684.pdfTest; https://egusphere.copernicus.org/preprints/2023/egusphere-2023-1684/egusphere-2023-1684.pdfTest

الإتاحة: https://doi.org/10.5194/egusphere-2023-1684Test
https://noa.gwlb.de/receive/cop_mods_00067990Test
https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00066427/egusphere-2023-1684.pdfTest
https://egusphere.copernicus.org/preprints/2023/egusphere-2023-1684/egusphere-2023-1684.pdfTest

المؤلفون: Byers, Alton C., Somos-Valenzuela, Marcelo, Shugar, Dan H., McGrath, Daniel, Chand, Mohan B., Avtar, Ram

مصطلحات موضوعية: article, Verlagsveröffentlichung

الوصف: Beginning in December 2020, a series of small-to-medium, torrent-like pulses commenced upon a historic debris cone located within the Nupchu valley, Kanchenjunga Conservation Area (KCA), Nepal. Sometime between 16 and 21 August 2022 a comparatively large ice-debris avalanche event occurred, covering an area of 0.6 km2 with a total estimated volume of order 106 m3. Changing cryospheric conditions throughout the region suggest that the installation of preventative floodwater diversion mechanisms for vulnerable villages is warranted, improved reporting mechanisms to authorities, and early warning systems. More systematic monitoring via remote sensing platforms and hazard mapping by scientists is also indicated.

وصف الملف: electronic

العلاقة: https://doi.org/10.5194/egusphere-2023-624Test; https://noa.gwlb.de/receive/cop_mods_00066593Test; https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00065074/egusphere-2023-624.pdfTest; https://egusphere.copernicus.org/preprints/2023/egusphere-2023-624/egusphere-2023-624.pdfTest

الإتاحة: https://doi.org/10.5194/egusphere-2023-624Test
https://noa.gwlb.de/receive/cop_mods_00066593Test
https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00065074/egusphere-2023-624.pdfTest
https://egusphere.copernicus.org/preprints/2023/egusphere-2023-624/egusphere-2023-624.pdfTest

المؤلفون: Kim, Hyoun S., McGrath, Daniel S., Hodgins, David C.

مصطلحات موضوعية: BF Psychology / lélektan

الوصف: Objectives: When individuals recover from gambling disorder, their involvement in other potentially addictive substances and behaviors may also subsequently increase (substitution) or decrease (concurrent recovery). The objectives of this study were to identify and compare recovery processes associated with substitution and concurrent recovery in gambling disorder. Methods: A mixed-method study was conducted with 185 people who were recovered from gambling disorder. Semi-structured interviews were used to: (i) establish onset and recovery of gambling disorder as well as other substance and behavioral addictions; and (ii) assess processes (e.g., reasons, emotional state, helpfulness) associated with addiction substitution and concurrent recovery. Participants also completed a survey assessing demographic characteristics, gambling behaviors, and psychological characteristics to compare demographic and clinical differences between participants who engaged in addiction substitution, concurrent recovery, or neither (controls). Results: The most frequently reported reason for engaging in addiction substitution was as a substitute coping mechanism. The most reported reason for engaging in concurrent recovery was due to the addictions being mutually influenced. Negative emotional states were common when engaging in both addiction substitution and concurrent recovery. Although the three groups did not differ on gambling characteristics, addiction substitution was associated with greater underlying vulnerabilities including childhood adversity, impulsivity, emotion dysregulation, and, maladaptive coping skills. Conclusion: Transdiagnostic treatments that target the underlying mechanisms of addictions may reduce the likelihood of engaging in addiction substitution.

وصف الملف: text

العلاقة: https://real.mtak.hu/188917/1/2006-article-p682.pdfTest; Kim, Hyoun S. and McGrath, Daniel S. and Hodgins, David C. (2023) Addiction substitution and concurrent recovery in gambling disorder: Who substitutes and why? Journal of Behavioral Addictions, 12 (3). pp. 682-696. ISSN 2062-5871

الإتاحة: https://doi.org/10.1556/2006.2023.00046Test
https://real.mtak.hu/188917Test/
https://real.mtak.hu/188917/1/2006-article-p682.pdfTest

المؤلفون: Meehan, Tate G., Hojatimalekshah, Ahmad, Marshall, Hans-Peter, Deeb, Elias J., O'Neel, Shad, McGrath, Daniel, Webb, Ryan W., Bonnell, Randall, Raleigh, Mark S., Hiemstra, Christopher, Elder, Kelly

المصدر: eISSN: 1994-0424

الوصف: Spaceborne remote sensing of snow currently enables landscape-scale snow covered area, but estimating snow mass in the mountains remains a major challenge from space. Airborne LiDAR can retrieve snow depth, and some promising results have recently been shown from spaceborne platforms, yet density estimates are required to convert snow depth to snow water equivalent (SWE). However, the retrieval of snow bulk density remains unsolved, and limited data is available to evaluate model estimates of density in mountainous terrain. Knowledge of the spatial patterns and predictors of density is critical for accurate assessment of SWE and essential snow physics, such as energy balance and mechanics related to hazards and over-snow mobility. Toward the goal of landscape-scale retrievals of snow density, we estimated bulk density and length-scale variability by combining ground-penetrating radar (GPR) two-way travel-time observations and airborne LiDAR snow depths collected during the mid-winter NASA SnowEx 2020 campaign at Grand Mesa, Colorado, USA. Key advancements of our approach include an automated layer picking method that leverages co- and cross-polarization coherence and distributed LiDAR–GPR inferred bulk density with machine learning. The root-mean-square error between the distributed estimates is 12 cm for depth, 27 kg/m 3 for density, and 42 mm for SWE, and the median relative uncertainty in distributed SWE is 7 %. Wind, terrain, and vegetation interactions display corroborated controls on bulk density that show model and observation agreement. The spatially continuous snow density and SWE estimated over approximately 16 km 2 represents the next step towards broad-scale SWE retrieval.

وصف الملف: application/pdf

العلاقة: https://tc.copernicus.org/preprints/tc-2023-141Test/

الإتاحة: https://doi.org/10.5194/tc-2023-141Test
https://tc.copernicus.org/preprints/tc-2023-141Test/

المؤلفون: Iskin, Emily Paige, author, Wohl, Ellen, advisor, Morrison, Ryan, committee member, McGrath, Daniel, committee member, Ronayne, Michael, committee member

مصطلحات موضوعية: fluvial geomorphology, remote sensing, spatial heterogeneity, landscape ecology, floodplain, river

الوصف: Includes bibliographical references. ; 2023 Spring. ; With human degradation of natural river corridors, the number of natural, functional floodplains is rapidly decreasing due to dams, diversions, artificial levees, draining, development, agriculture, and invasive species. At the same time, small- to large-scale interest in and implementation of river restoration is expanding, with floodplain restoration soon to take a starring role. To properly manage and restore processes to floodplains, we first need a broad understanding of what they look like and why. A key component of natural river-floodplain systems is heterogeneity, defined as the spatial variation of geomorphic and vegetation classes and patches across a floodplain. Heterogeneity of floodplains both reflects and influences the fluvial processes acting on floodplains and can help shape our understanding of the form and function of floodplains. To begin characterizing floodplain spatial heterogeneity, I present in this dissertation: 1) the development of a method to combine field measurements and remote sensing data products to calculate integrative landscape-scale metrics of floodplain spatial heterogeneity, and the demonstration of which metrics from landscape ecology are likely to be useful for identifying qualities of natural floodplains at four case study sites; 2) a sensitivity analysis to determine whether and how the values of the heterogeneity metrics change when spatial and spectral resolution of the input data are increased, and the extraction of underlying data from the classification results to determine whether using higher resolution data allows identification of the resulting unsupervised classes in relation to field and remote data at four case study sites; and 3) quantification of floodplain spatial heterogeneity, evaluation of whether statistically significant patterns are present, and interpretation of the statistical analyses with respect to the influence of channel lateral mobility and valley-floor space available using a complete ...

وصف الملف: born digital; doctoral dissertations; application/pdf

العلاقة: 2020-; Iskin_colostate_0053A_17680.pdf; https://hdl.handle.net/10217/236679Test

الإتاحة: https://hdl.handle.net/10217/236679Test