Biodiversity Informatics
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Who does this benefit? A consideration of demographics in the access and impact of retirement from college sport programming
No full textSport retirement can reveal a host of difficulties for college athletes including minimal career preparation, mental health struggles, and identity foreclosure. While college athletes almost always note the challenges of leaving their sport behind, these challenges can be mitigated through transition programming. However, what types of programming are more useful, and for whom, is understudied. Through a mixed method survey, this study explored differences in access and impact of retirement from sport programming based on athletes’ (n = 707) demographic differences (e.g., race, division), through the lens of Goodman and colleagues’ (2006) three phases of transition. Findings revealed that Black athletes and those from working class backgrounds found programs to be more impactful than other demographic groups, supporting the argument for personalized retirement support. Additionally, Division II athletes not only had the greatest access to retirement programming, but also found programming to have more impact than other divisions. However, athletes noted that more programs are needed for every division. 
Coexistence of Amyotrophic Lateral Sclerosis and Lymphoproliferative Disorders – Analysis from a Tertiary Center
Get PDFBackground: The coexistence of motor neuron diseases (MNDs) and lymphoproliferative disorders (LPDs) has been documented historically in a few small retrospective studies but an update is lacking.
Objective: The goal of this study is to expand the database of patients with these coexisting diseases, and to describe the natural history and overall outcomes including presumed or identified cause of mortality (neurologic versus oncologic).
Materials and methods: A retrospective analysis of all patients within the Cleveland Clinic diagnosed with one or more LPDs between January 1, 2012 and June 30, 2021, was performed to identify patients with a diagnosis of MND.
Results: A total of 20 patients with one MND diagnosis and one coexisting LPD were included in the final analysis. Their clinical features are characterized. In 17 patients, the diagnosis of LPD was made prior to the MND diagnosis. Eighteen patients passed away with a mean survival of 49.1 (range: 6 to 128) months from the MND onset. In 16 patients, the cause of death was MND related. The incidence rates of MNDs and myasthenia gravis were examined in a group of 6,169 patients with LPDs. The incidence rate of MNDs in LPDs seems to be higher than those of the general population, appeared over-represented when comparing to the occurrence of myasthenia gravis in LPDs.
Conclusion: Coexisting MND and LPD continue to occur. There seems to be an over representation of MND in patients with LPDs
First record of the Tibetan Rock Agama (Laudakia papenfussi Zhao 1998) from India and a new lowest elevation record.
Get PDFIndian Bullfrogs (Hoplobatrachus tigerinus): Observations of predation and cannibalism in Hapure, Dang District, Nepal
Get PDFA Cat-eyed Snake, Leptodeira sp.(Squamata: Dipsadidae), scavenging a road-killed Frog in northern Costa Rica
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The Role of the Cedar Hills/Lyons Sandstone Aquifer in the Dissolution of Halite Cement from Siliciclastic Sediments of the Permian Nippewalla Group in the Syracuse Basin in Western Kansas and Eastern Colorado
Get PDFThe Syracuse Basin presents a rare opportunity to study a salt- and salt-cement-dissolution system over an extremely large area. Abundant geophysical well-log control spanning the salt- bearing interior sediments and their lateral salt-dissolved equivalents is available to define and characterize this salt-dissolution phenomenon. Detailed regional mapping using this abundant well-log database reveals a broad salt-cement-dissolution halo around the entire perimeter of the Syracuse Basin in Nippewalla Group siliciclastic sediments radiating outward from the central salt-preserved interior of the basin.
Five areas around the perimeter of the basin were selected for detailed study to illustrate the dominant role of the Cedar Hills/Lyons Sandstone aquifer in the salt-dissolution system. The Cedar Hills/Lyons Sandstone stands out as the most prominent and regionally widespread aquifer within Permian sediments of the Syracuse Basin and surrounding region. Detailed regional subsurface mapping and cross sections presented in this paper clearly show that this high-quality confined aquifer delivered (and is still delivering) groundwater that is unsaturated with respect to sodium chloride and is responsible for this major regional phenomenon of dissolution of halite in salt-cemented siliciclastics.
We will show that water unsaturated with sodium chloride encroaches on salt-bearing siliciclastic units of the Nippewalla Group in the Syracuse Basin by first invading the Cedar Hills/Lyons Sandstone, where the water is under hydrostatic pressure. Unsaturated water then is forced down into the underlying Salt Plain Formation and Harper Sandstone, dissolving interstitial salt in those formations, and may then go deeper and dissolve the Stone Corral salt. Unsaturated water in the Cedar Hills/Lyons is locally forced upward to dissolve some or all of the overlying Flowerpot salt—mainly where the overlying Y-anhydrite aquitard is absent.
A preliminary semi-regional resistivity map is presented for the Cedar Hills/Lyons Sandstone aquifer. Dramatic resistivity contrasts between fresher unsaturated recharge groundwaters (with higher resistivity readings of 10 to 20+ ohm-meters) and highly saline brines (with ultra-low resistivity readings of less than 0.1 to 0.5 ohm-meters) associated with salt-dissolution events can reveal clues about modern- and paleo-hydrologic history as well as about the dissolution and flushing history of the highly saline brines created by this process.
Semi-regional dissolution “halo” maps and resistivity (water-salinity) maps are herein generated by well-log studies of the Nippewalla Group evaporitic sediments in the Syracuse Basin region. Oil and gas regulatory agencies may use these maps in well permitting, plugging, and underground injection control (UIC) activities (saltwater-disposal permitting). Industry personnel can use these maps in well planning and design in the areas affected by salt and salt-cement dissolution. Additionally, oil and gas seismic surveys could benefit by consulting the regional dissolution “halo” maps to assist in avoiding seismic-velocity pitfalls that could interfere with data interpretation.
Although Permian aquifers in close association with evaporitic sediments are not typically developed for domestic use because of their poor water quality, hydrologists may be interested in mapping these saline aquifers to gain an understanding of their potential to cross contaminate nearby freshwater aquifers. This is particularly true when underlying highly saline confined aquifers could discharge upward into a shallower, overlying freshwater aquifer
The ratio of Ψ(2S) and J/Ψ exclusive photoproduction cross-sections as a tool to detect non-linear QCD evolution
Get PDFWe study the proposal that the rise with energy of the ratio of Ψ(2s) and J/Ψ exclusive photoproduction cross-sections might serve as an indicator of the presence of non-linear QCD evolution, related to the presence of high and potentially saturated gluon densities in both the proton and a lead nucleus. Our study employs recent fits of the GBW and BGK dipole models and provides predictions for both exclusive photoproduction on a proton and on a lead nucleus. While the cross-sections for photoproduction on a proton depend only weakly on non-linear low x corrections, we find an increased sensitivity for the cross-section ratio, which is directly related to the node in the Ψ(2s) wave function. We further give a description of recent ALICE data for exclusive J/Ψ photoproduction on a lead nucleus and provide predictions for Ψ(2s) photoproduction on a lead nucleus as well as for the corresponding cross-section ratio
Inclusive and Diffractive Dijet Photoproduction in Ultraperipheral Pb-Pb Collisions at the LHC
Get PDFIn this contribution, we summarize NLO pQCD predictions for inclusive and diffractive dijet photoproduction in Pb-Pb UPCs at the LHC. We demonstrate that the theory describes well the preliminary ATLAS data on the inclusive cross section, which probes nuclear parton distributions (PDFs) down to x_A ~ 0.005 and which can reduce current uncertainties of the small-x nuclear gluon distribution by approximately a factor of 2. Employing predictions of the leading twist approach to nuclear shadowing for nuclear diffractive PDFs, we calculate the cross section of diffractive dijet photoproduction and show that its x_gamma} dependence is sensitive to the effect of nuclear shadowing and the mechanism of QCD factorization breaking in hard diffraction. We also find that due to large leading twist nuclear shadowing and restricted kinematics, the diffractive contribution to the inclusive cross section of dijet photoproduction does not exceed 5-10%, which helps with an ambiguous interpretation of the ATLAS data
Collision geometry in UPC dijet production
Get PDFWe present a comprehensive NLO pQCD study on inclusive dijet photoproduction in ultraperipheral nucleus-nucleus collisions (UPCs). Our analysis takes into account the finite size of both the photon-emitting and the target nucleus, estimated using the Wood-Saxon nuclear density profile. We show that a significant part of the measured dijets at large z_\gamma in UPC Pb+Pb collisions at 5.02 TeV come from events with relatively small impact parameters of the order of a few nuclear radii, and the cross section predictions thus become sensitive to the modelling of the collision geometry and photon flux near the source nucleus. In addition, we include the modelling of electromagnetic breakup survival factor needed for a direct comparison with the experimental data and study the resolution power of this process in terms of the impact-parameter dependent nuclear parton distribution functions