cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.48577/jpl.tprj0t
title: Resolving the carbon-climate feedback potential of wetland CO2 and CH4 fluxes in Alaska

description: Boreal-Arctic regions are key stores of organic carbon (C) and play a major role in the greenhouse gas balance of high-latitude ecosystems. The carbon-climate (C-climate) feedback potential of northern high-latitude ecosystems remains poorly understood due to uncertainty in temperature and precipitation controls on carbon dioxide (CO2) uptake and the decomposition of soil C into CO2 and methane (CH4) fluxes. While CH4 fluxes account for a smaller component of the C balance, the climatic impact of CH4 outweighs CO2 (28-34 times larger Global Warming Potential on a 100-year scale), highlighting the need to jointly resolve the climatic sensitivities of both CO2 and CH4. Here we jointly constrain a terrestrial biosphere model with in situ CO2 and CH4 flux observations at seven eddy covariance sites using a data-model integration approach to resolve the integrated environmental controls on land-atmosphere CO2 and CH4 exchanges in Alaska. Based on the combined CO2 and CH4 flux responses to climate variables, we find that 1970-present climate trends will induce positive C-climate feedback at all tundra sites, and negative C-climate feedback at the boreal and shrub fen sites. The positive C-climate feedback at the tundra sites is predominantly driven by increased CH4 emissions while the negative C-climate feedback at the boreal site is predominantly driven by increased CO2 uptake (80% from decreased heterotrophic respiration, and 20% from increased photosynthesis). Our study demonstrates the need for joint observational constraints on CO2 and CH4 biogeochemical processes – and their associated climatic sensitivities – for resolving the sign and magnitude of high-latitude ecosystem C-climate feedback in the coming decades.
DOI: 10.48577/jpl.qxfcqa
title: Evidence of Sulfate-Rich Fluid Alteration in Jezero Crater Floor, Mars

description: Sulfur plays a major role in martian geochemistry and sulfate minerals are important repositories of water. However, their hydration states on Mars are poorly constrained. Therefore, understanding the hydration and distribution of sulfate minerals on Mars is important for understanding its geologic, hydrologic, and atmospheric evolution, as well as its habitability potential. NASA's Perseverance rover is currently exploring the Noachian-age Jezero crater, which hosts a fan-delta system associated with a paleolake. The crater floor includes two igneous units (the Séítah and Máaz formations), both of which contain evidence of later alteration by fluids including sulfate minerals. Results from the rover instruments SHERLOC (Scanning Habitable Environments with Raman and Luminescence for Organics and Chemistry) and PIXL (Planetary Instrument for X-ray Lithochemistry) reveal the presence of a mix of crystalline and amorphous hydrated Mg-sulfate minerals (both MgSO4⋅[3-5]H2O and possible MgSO4⋅H2O), and anhydrous Ca-sulfate minerals. The sulfate phases within each outcrop may have formed from a single or multiple episodes of water activity, although several depositional events seem likely for the different units in the crater floor. Textural and chemical evidence suggest the sulfate minerals most likely precipitated from a low temperature sulfate-rich fluid of moderate pH. The identification of approximately four waters puts a lower constraint on the hydration state of sulfate minerals in the shallow subsurface, which has implications for the martian hydrological budget. These sulfate minerals are key samples for future Mars sample return.
DOI: 10.48577/jpl.o3q2pj
title: Free Vibration of a Panel Supported by a Shear Compliant Tow Flexure Hinge

description: Elastically deformable hinges or deployable booms commonly follow architectures with face-skin layers only, cutting out the core to facilitate folding. This significantly reduces the shear stiffness of the hinge, which might reduce the first resonance frequency of the structure. We rationalize the free vibration of the system and the interplay between shearing and bending deformation by deriving an analytical formulation using Timoshenko’s beam theory. The framework is derived for a general beam, and applied to a case of two flexures of arbitrary geometry with no core. Investigating the specific geometry of flat flexures reveals the existence of two non-dimensional length ratios that control the inertia and bending to shear stiffness of the hinge. Our model explains the dependence of the frequency on the parameters of the system, as well as the dimensions that determine the transition between bending- and shear-dominated vibration modes. Comparison with finite element simulations show that Elastically deformable hinges or deployable booms commonly follow architectures with face-skin layers only, cutting out the core to facilitate folding. This significantly reduces the shear stiffness of the hinge, which might reduce the first resonance frequency of the structure. We rationalize the free vibration of the system and the interplay between shearing and bending deformation by deriving an analytical formulation using Timoshenko’s beam theory. The framework is derived for a general beam, and applied to a case of two flexures of arbitrary geometry with no core. Investigating the specific geometry of flat flexures reveals the existence of two non-dimensional length ratios that control the inertia and bending to shear stiffness of the hinge. Our model explains the dependence of the frequency on the parameters of the system, as well as the dimensions that determine the transition between bending- and shear-dominated vibration modes. Comparison with finite element simulations show that our analytic framework is able to predict the first natural frequency with less than 1% error. Additionally, an experimental validation was carried out using steel flexures and acrylic panels, showing good agreement with the predictions. Our analytic framework is able to predict the first natural frequency with less than 1% error. Additionally, an experimental validation was carried out using steel flexures and acrylic panels, showing good agreement with the predictions.
DOI: 10.48577/jpl.vkrhfq
title: Testing magnetospheric accretion as an H$\alpha$ emission mechanism of embedded giant planets: The case study for the disk exhibiting meridional flow around HD 163296

description: Recent high-sensitivity observations reveal that accreting giant planets embedded in their parentalcircumstellar disks can emit Hα at their final formation stages. While the origin of such emission isnot determined yet, magnetospheric accretion is currently a most plausible hypothesis. In order totest this hypothesis further, we develop a simplified, but physical-based model and apply it to ourobservations taken toward HD 163296 with Subaru/SCExAO+VAMPIRES. We specify under whatconditions, embedded giant planets can undergo magnetospheric accretion and emit hydrogen lines. Wefind that when stellar accretion rates are high, magnetospheric accretion becomes energetic enough toself-regulate the resulting emission. On the other hand, if massive planets are embedded in disks withlow accretion rates, earlier formation histories determine whether magnetospheric accretion occurs.We explore two different origins of hydrogen emission lines (magnetospheric accretion flow heated byaccretion-related processes vs planetary surfaces via accretion shock). The corresponding relationshipsbetween the accretion and line luminosities dictate that emission from accretion flow achieves higherline flux than that from accretion shock and the flux decreases with increasing wavelengths (i.e., fromHα to Paβ and up to Brγ). Our observations do not detect any point-like source emitting Hα and areused to derive the 5σ detection limit. The observations are therefore not sensitive enough, and reliableexamination of our model becomes possible if observational sensitivity will be improved by a factor often or more. Multi-band observations increase the possibility of efficiently detecting embedded giantplanets and carefully determining the origin of hydrogen emission lines.
DOI: 10.48577/jpl.iwtrxh
title: Effect of pH on the release of amino acids from microorganisms via subcritical water extraction

description: Distributions of amino acids, either based on enantiomeric excess or relative abundances of amino acid type, are key chemical measurements in the search for life on potential future astrobiology missions. This study investigates the impact of subcritical water extraction (SCWE) at different pH values on the measurement of these amino acid distributions, when the starting material contains microorganisms. Cells of Pseudoalteromonas haloplanktis at pH 2, 6, and 12 underwent SCWE at 200°C for 30 minutes, and the released amino acids were analyzed by capillary electrophoresis with laser-induced fluorescence detection. The overall extraction yield was improved under both acidic and alkaline conditions relative to neutral ones. The characteristic biotic distributions of amino acid types present in these samples were preserved under all 2 conditions, although some degradation was observed as a relative increase in the amount of simpler amino acids like glycine. Contrarily, while biotic enantiomeric excesses remained preserved under acidic conditions, racemization was observed under alkaline conditions. This work shows the power of SCWE for converting polypeptide biopolymers into amino acid monomers independent of the initial pH of the sample. However, it also highlights the need to understand the physiochemical properties of the sample to allow mitigation of undesirable changes to the native distributions of amino acids.
DOI: 10.48577/jpl.ld9hod
title: Searching for Planets Orbiting Fomalhaut with JWST

description: We report observations with the JWST/NIRCam coronagraph of the Fomalhaut (α PsA) system. This nearby A star hosts a complex debris disk system discovered by the IRAS satellite. Observations in F444W and F356W filters using the round 430R mask achieve a contrast ratio of ∼4 × 10−7 at 1′′ and ∼4 × 10−8 outside of 3′′. These observations reach a sensitivity limit of &lt;1 MJup across most of the disk region. Consistent with the hypothesis that Fomalhaut b is not a massive planet but is a dust cloud from a planetesimal collision, we do not detect it in either F356W or F444W (the latter band where a Jovian-sized planet should be bright). We have reliably detected 10 sources in and around Fomalhaut and its debris disk, all but one of which are coincident with Keck or Hubble Space Telescope sources seen in earlier coronagraphic imaging; we show them to be background objects, including the “Great Dust Cloud” identified in Mid-Infrared Instrument (MIRI) data. However, one of the objects, located at the edge of the inner dust disk seen in the MIRI images, has no obvious counterpart in imaging at earlier epochs and has a relatively red [F356W]–[F444W] &gt; 0.7 mag (Vega) color. Whether this object is a background galaxy, brown dwarf, or a Jovian-mass planet in the Fomalhaut system will be determined by an approved Cycle 2 follow- up program. Finally, we set upper limits to any scattered light from the outer ring, placing a weak limit on the dust albedo at F356W and F444W.
DOI: 10.48577/jpl.r6oant
title: A Primordial Origin for the Gas-Rich Debris Disks Around Intermediate-Mass Star

description: While most debris disks consist of dust with little or no gas, a fraction have significant amounts of gas detected via emission lines of CO, ionized carbon, and/or atomic oxygen. Almost all such gaseous debris disks known are around A-type stars with ages up to 50 Myr. We show using semi-analytic disk evolution modeling that this can be understood if the gaseous debris disks are remnant protoplanetary disks that have become depleted of fine dust. Photoelectric heating by the A-stars’ FUV radiation is then inefficient, while the stars’ EUV and X-ray emission is weak owing to a lack of surface convective zones capable of driving magnetic activity. In this picture, stars outside the range of spectral types from A through early B cannot have such long-lived gas disks. Less-massive stars have stronger magnetic activity in the chromosphere, transition region, and corona with resulting EUV and X-ray emission, while more-massive stars have photospheres hot enough to produce EUV radiation. In both cases, primordial disk gas is likely to photoevaporate well before 50 Myr. These results come from disk evolution models where we treat internal accretion stresses, MHD winds, and photoevaporation by EUV and X-ray photons at luminosities that are functions of the stellar mass and age. A key issue this work leaves open is how some disks become depleted in fine dust so that FUV photoevaporation slows. Candidates include grains’ growth, settling, radial drift, radiation force, and incorporation into planetary systems.
DOI: 10.6084/m9.figshare.24996389
title: Mean group size and number of groups in the Hastings population, 1973 - 2023

description: This file has the mean group size and number of groups within a defined area of Hastings Reservation (Monterey County, California) for the cooperatively breeding acorn woodpecker.
DOI: 10.6084/m9.figshare.24996389.v1
title: Mean group size and number of groups in the Hastings population, 1973 - 2023

description: This file has the mean group size and number of groups within a defined area of Hastings Reservation (Monterey County, California) for the cooperatively breeding acorn woodpecker.
DOI: 10.57967/hf/1555
title: human_ai_generated_text
DOI: 10.5281/zenodo.10469044
title: Computational Results: Algorithms for Robust Combinatorial Optimization with Budgeted Uncertainty

description: We provide computational results for robust combinatorial optimization problems with budgeted uncertainty described in the thesis "Algorithms for Robust Combinatorial Optimization with Budgeted Uncertainty and Fair Planning of the Out-of-Hours Service for Pharmacies" by Timo Gersing.
DOI: 10.5281/zenodo.10469045
title: Computational Results: Algorithms for Robust Combinatorial Optimization with Budgeted Uncertainty

description: We provide computational results for robust combinatorial optimization problems with budgeted uncertainty described in the thesis "Algorithms for Robust Combinatorial Optimization with Budgeted Uncertainty and Fair Planning of the Out-of-Hours Service for Pharmacies" by Timo Gersing.
DOI: 10.5281/zenodo.10500728
title: X-ray microcomputed tomography (μCT) datasets of hydrogen (H2) drainage and imbibition in a layered sandstone at reservoir pressure and temperature conditions.

description: This dataset contains raw (unfiltered), filtered, and segmented image stacks of the dry and wet scans (containing fluids) for two pore-scale X-ray H2 flow experiments in a layered Clashach sandstone sample at 50°C and 10 MPa. Please refer to the readme file '00_Readme.pdf' for details about the dataset.
DOI: 10.5281/zenodo.8375682
title: X-ray microcomputed tomography (μCT) datasets of hydrogen (H2) drainage and imbibition in a layered sandstone at reservoir pressure and temperature conditions.

description: This dataset contains raw (unfiltered), filtered, and segmented image stacks of the dry and wet scans (containing fluids) for two pore-scale X-ray H2 flow experiments in a layered Clashach sandstone sample at 50°C and 10 MPa. Please refer to the readme file '00_Readme.pdf' for details about the dataset.
DOI: 10.5281/zenodo.8375683
title: X-ray microcomputed tomography (μCT) datasets of hydrogen (H2) drainage and imbibition in a layered sandstone at reservoir pressure and temperature conditions.

description: This dataset contains raw (unfiltered), filtered, and segmented image stacks of the dry and wet scans (containing fluids) for two pore-scale X-ray H<sub>2</sub> flow experiments in a layered Clashach sandstone sample at 50°C and 10 MPa. Please refer to the readme file '00_Readme.pdf' for details about the dataset.
DOI: 10.34740/kaggle/dsv/7402580
title: Forex Exchange Rates Since 2004 (Updated Daily)
DOI: 10.6084/m9.figshare.24996407
title: Dataset (NVP Index)

description: Systemic immune inflammation index, systemic inflammatory response index and pan-immune inflammation value in predicting nausea and vomiting in pregnancy and the need for hospitalization Abstract Objective To investigate the role of the systemic immune-inflammation index (SII), systemic inflammatory response index (SIRI) and pan-immune inflammation value (PIV) in predicting nausea and vomiting in pregnancy (NVP). Study Design Women diagnosed and treated for NVP at a large tertiary hospital between 2016 and 2021 were retrospectively analyzed. After applying the inclusion criteria, a total of 278 eligible patients with NVP and 278 gestational age-matched healthy pregnant women were included. Patients with NVP were divided into mild (n=58), moderate (n=140) and severe NVP (n=80). Patients with moderate and/or severe NVP who were at high risk for hospitalization were pooled and assigned to an inpatient treatment group. The data from the first trimester of the groups were then compared. Results SII and PIV were significantly higher in the NVP group than in the control group, while SII, SIRI and PIV were significantly higher in the inpatient treatment group than in the mild NVP group. The comparison of overall performance in predicting the development of NVP showed that SII was better than PIV (p&lt;0.001), while there was no significant superiority between SII, SIRI and PIV in predicting the need for inpatient treatment. An SII with a cut-off value of &gt;1207x103/µL (47.48% sensitivity, 82.01% specificity) had the highest discriminatory power for predicting NVP. Conclusion Our results suggest an association between high SII and PIV and an increased risk of future NVP. These markers can be used as a first-trimester screening test to improve treatment planning of pregnancies at high risk of HG.
DOI: 10.34740/kaggle/dsv/7402605
title: Full TMDB Movies Dataset 2023 (930K Movies)
DOI: 10.34740/kaggle/dsv/7402615
title: Top Spotify Songs in 73 Countries (Daily Updated)
DOI: 10.5281/zenodo.10510046
title: Mitochondrial complex I activity in microglia  sustains neuroinflammation - CyTOF data and analysis

description:  

This repository documents the raw data and analysis of the CyTOF results reported in:



Mitochondrial reverse electron transport in myeloid cells perpetuates neuroinflammation


L. Peruzzotti-Jametti, C.M. Willis, R. Hamel, G. Krzak, J.A. Reisz, H.A. Prag, V. Wu, Y. Xiang, A.M.R. van den Bosch, A.M. Nicaise, L. Roth, G.R. Bates, H. Huang, A.E. Vincent, C. Frezza, C. Viscomi, J.C. Marioni, A. D’Alessandro, Z. Takats, M.P. Murphy, S. Pluchino bioRxiv 2024.01.03.574059; doi: https://doi.org/10.1101/2024.01.03.574059

 

Contents:

Ndufs4.zip

/Rcode/ --- notebooks used for the analysis and figure generation

/data/ndufs4_lymphoid/ --- fcs files for lymphoid gating

/data/ndufs4_myeloid/ --- fcs files for myeloid gating

/data/Ndufs4_metadata.xlsx --- metadata

/data/suspension_mass_cytometry_panel.xlsx --- CyTOF panel

small_molecule.zip

/Rcode/ --- notebooks used for the analysis and figure generation

/data/cleaned_and_gated/lymphoid/ --- fcs files for lymphoid gating (after Gd correction)

/data/cleaned_and_gated/myeloid/ --- fcs files for myeloid gating (after Gd correction)

/data/cleaned_and_gated/small_molecules_metadata_lymphoid.xlsx --- metadata

/data/cleaned_and_gated/small_molecules_metadata_myeloid.xlsx --- metadata

/data/cleaned_and_gated/suspension_mass_cytometry_panel.xlsx --- CyTOF panel

/data/raw/ --- fcs files (before Gd correction)
DOI: 10.5281/zenodo.10510047
title: Mitochondrial complex I activity in microglia  sustains neuroinflammation - CyTOF data and analysis

description:  

This repository documents the raw data and analysis of the CyTOF results reported in:



Mitochondrial reverse electron transport in myeloid cells perpetuates neuroinflammation


L. Peruzzotti-Jametti, C.M. Willis, R. Hamel, G. Krzak, J.A. Reisz, H.A. Prag, V. Wu, Y. Xiang, A.M.R. van den Bosch, A.M. Nicaise, L. Roth, G.R. Bates, H. Huang, A.E. Vincent, C. Frezza, C. Viscomi, J.C. Marioni, A. D’Alessandro, Z. Takats, M.P. Murphy, S. Pluchino bioRxiv 2024.01.03.574059; doi: https://doi.org/10.1101/2024.01.03.574059

 

Contents:

Ndufs4.zip

/Rcode/ --- notebooks used for the analysis and figure generation

/data/ndufs4_lymphoid/ --- fcs files for lymphoid gating

/data/ndufs4_myeloid/ --- fcs files for myeloid gating

/data/Ndufs4_metadata.xlsx --- metadata

/data/suspension_mass_cytometry_panel.xlsx --- CyTOF panel

small_molecule.zip

/Rcode/ --- notebooks used for the analysis and figure generation

/data/cleaned_and_gated/lymphoid/ --- fcs files for lymphoid gating (after Gd correction)

/data/cleaned_and_gated/myeloid/ --- fcs files for myeloid gating (after Gd correction)

/data/cleaned_and_gated/small_molecules_metadata_lymphoid.xlsx --- metadata

/data/cleaned_and_gated/small_molecules_metadata_myeloid.xlsx --- metadata

/data/cleaned_and_gated/suspension_mass_cytometry_panel.xlsx --- CyTOF panel

/data/raw/ --- fcs files (before Gd correction)
DOI: 10.25345/c5ft8dw2f
title: MassIVE MSV000093867 - Automated single-cell proteomics covering over four orders of magnitude at high throughput
title: Single-cell proteomics analysis of HEK293 and THP-1 cells on the timsTOF Ultra.
DOI: 10.34740/kaggle/dsv/7402624
title: Trending Youtube Video Statistics (113 Countries)
DOI: 10.34740/kaggle/dsv/7402642
title: CO Journey: 1994-2022
DOI: 10.6084/m9.figshare.24996464
title: Amac Morphology Raw Data

description: This dataset was used for the analyses reported in "Trait variation in patchy landscapes: morphology of spotted salamanders (Ambystoma maculatum) varies more within ponds than between ponds". Data were collected from photo images in 2016 by E. Green and D. Daversa. The data reports morphological traits of spotted salamanders collected in Eastern Missouri. Pond characteristics are also included in the data set. Specifically, the dataframe contains the following columns: ID: Unique identifier for individualsdate: date of capture yearday: day of the year that individual was capturedspecies: the Genus and species of the individual (all are A. maculatum)side_image: A unique ID for photo image taken of the side of the individual (we also took ventral photos that were not used in the analysis)stage: larval developmental stage as described by Harrison (1969). See main text for citation. pond: name of the pond where the individual was capturesite: name of the conservation property where the pond of capture was located dipnets: number of dipnets made at the pond where individual was captureddensity: estimated salamander density in ponds according to dipnet surveysdensity_key: a categorical variable describing the density of salamanders at the pond, relative to other survey pondsspecies_richness: Number of amphibian species captured during dipnet surveypredator_sum: the total number of predator individuals found at the pondpredator_richness: The number of predator species found at the pondpredator_density: estimated number of predators in the pond of capturepred_key: A categorical variable describing the density of predators in the pond of capture, relative to other survey pondsorigin: The age of the pond of capture (new vs. old)head_length: linear length of head (mm)head_height: Linear height of head (mm)tail_height: linear height of tail (mm)total length: linear body length, including head and tail (mm)mass: the weight of the individual (g)whole_shape: morphometric shape of individual, including all body segmentsbody_shape: morphometric shape of the body, excluding head and tailtail_shape: morphometric shape of the tailhead_shape: morphometric shape of the head