James M. Russell
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View article: Fecal Biomarkers in Soils Record Landscape‐Scale Wild Herbivore Abundance
Fecal Biomarkers in Soils Record Landscape‐Scale Wild Herbivore Abundance Open
In Earth history, our understanding of how large‐bodied herbivores shape a variety of ecosystem processes is limited by the quality of paleoecological proxies for herbivore composition and abundance. Fecal stanols are lipids that can be pr…
View article: Arctic‐Boreal Bryophyte Dynamics Since the Last Glacial Inferred From Ancient DNA Metabarcoding
Arctic‐Boreal Bryophyte Dynamics Since the Last Glacial Inferred From Ancient DNA Metabarcoding Open
Aim This study investigates the main changes in bryophyte diversity and composition during the last 30,000 years in arctic and boreal ecosystems. Turnover in biological and ecological trait compositions of recorded bryophytes is assessed t…
View article: Significant Statistics: An Introduction to Statistics
Significant Statistics: An Introduction to Statistics Open
View article: Increased North African Dust Fluxes and Higher Productivity in the Eastern Equatorial Atlantic Ocean Linked to Stronger Trade Winds From About 2.7 Million Years ago
Increased North African Dust Fluxes and Higher Productivity in the Eastern Equatorial Atlantic Ocean Linked to Stronger Trade Winds From About 2.7 Million Years ago Open
For at least the last 11 million years, the North African landscape has repeatedly oscillated on astronomical timescales between the dry dusty conditions of today and more humid, vegetated conditions such as those documented for the mid‐Ho…
View article: Comparative clumped isotope temperature relationships in freshwater carbonates
Comparative clumped isotope temperature relationships in freshwater carbonates Open
Lacustrine, riverine and spring carbonates represent archives of terrestrial climates and their geochemistry has been used to study palaeoenvironments. Clumped isotope thermometry is an emerging tool that has been applied to freshwater car…
View article: Seasonal Distribution of Gravity Waves Near the Stratopause in 2019–2022
Seasonal Distribution of Gravity Waves Near the Stratopause in 2019–2022 Open
The cloud imaging and particle size (CIPS) instrument onboard the Aeronomy of Ice in the Mesosphere satellite provides images of gravity waves (GWs) near the stratopause and lowermost mesosphere (altitudes of 50–55 km). GW identification i…
View article: Sounding of the Atmosphere Using Broadband Emission Radiometry (SABER): Instrument and Science Measurement Description
Sounding of the Atmosphere Using Broadband Emission Radiometry (SABER): Instrument and Science Measurement Description Open
SABER (Sounding of the Atmosphere using Broadband Emission Radiometry) is a 10‐channel infrared radiometer that is one of four instruments on the NASA TIMED (Thermosphere‐Ionosphere‐Mesosphere Energetics and Dynamics) satellite mission to …
View article: WACCM6 Projections of Polar Mesospheric Cloud Abundance Over the 21st Century
WACCM6 Projections of Polar Mesospheric Cloud Abundance Over the 21st Century Open
Polar mesospheric clouds (PMC), or noctilucent clouds, can be observed over high latitudes with the naked eye from the ground or from space near the summer solstice. PMC are considered a direct and sensitive indicator of climate change and…
View article: Activation of STING in Response to Partial-Tumor Radiation Exposure
Activation of STING in Response to Partial-Tumor Radiation Exposure Open
View article: Sounding of the Atmosphere using Broadband Emission Radiometry (SABER): Instrument and Science Measurement Description
Sounding of the Atmosphere using Broadband Emission Radiometry (SABER): Instrument and Science Measurement Description Open
SABER (Sounding of the Atmosphere using Broadband Emission Radiometry) is a 10-channel infrared radiometer that is one of four instruments on the NASA TIMED (Thermosphere-Ionosphere-Mesosphere Energetics and Dynamics) satellite mission to …
View article: Sounding of the Atmosphere using Broadband Emission Radiometry (SABER): Instrument and Science Measurement Description
Sounding of the Atmosphere using Broadband Emission Radiometry (SABER): Instrument and Science Measurement Description Open
SABER (Sounding of the Atmosphere using Broadband Emission Radiometry) is a 10-channel infrared radiometer that is one of four instruments on the NASA TIMED (Thermosphere-Ionosphere-Mesosphere Energetics and Dynamics) satellite mission to …
View article: Algorithm Stability and the Long‐Term Geospace Data Record From TIMED/SABER
Algorithm Stability and the Long‐Term Geospace Data Record From TIMED/SABER Open
The ability of satellite instruments to accurately observe long‐term changes in atmospheric temperature depends on many factors including the absolute accuracy of the measurement, the stability of the calibration of the instrument, the sta…
View article: Gauging Gerrymandering in Pennsylvania
Gauging Gerrymandering in Pennsylvania Open
There is currently no widely accepted standard method to determine whether gerrymandering has occurred. To determine a cutoff for unreasonable gerrymandering, simulating collections of districting plans in the absence of partisan bias has …
View article: A Case of Tachycardia-Induced Cardiomyopathy During Pregnancy: Clinical Presentation and Management
A Case of Tachycardia-Induced Cardiomyopathy During Pregnancy: Clinical Presentation and Management Open
A 28-year-old G2P0010 woman with a history of COVID infection during her current pregnancy treated with monoclonal antibodies and benign gestational thrombocytopenia presented for routine prenatal care at 33 weeks' gestation. The patient w…
View article: Algorithm Stability and the Long-Term Geospace Data Record from TIMED/SABER
Algorithm Stability and the Long-Term Geospace Data Record from TIMED/SABER Open
The ability of satellite instruments to accurately observe long-term changes in atmospheric temperature depends on many factors including the absolute accuracy of the measurement, the stability of the calibration of the instrument, the sta…
View article: Cooling and Contraction of the Mesosphere and Lower Thermosphere From 2002 to 2021
Cooling and Contraction of the Mesosphere and Lower Thermosphere From 2002 to 2021 Open
We examine the thermal structure of the mesosphere and lower thermosphere (MLT) using observations from 2002 through 2021 from the SABER instrument on the NASA TIMED satellite. These observations show that the MLT has significantly cooled …
View article: Small Molecule Sorting: A Fluorescence Study of Microemulsions
Small Molecule Sorting: A Fluorescence Study of Microemulsions Open
The application of microemulsions to a wide range of industries relies on their ability to solubilize small molecules with vastly different structures. Herein, we use multiple fluorescence techniques to probe ionic (rhodamine 6g, r6g), pol…
View article: Variability of Water Vapor in the Tropical Middle Atmosphere Observed From Satellites and Interpreted Using SD‐WACCM Simulations
Variability of Water Vapor in the Tropical Middle Atmosphere Observed From Satellites and Interpreted Using SD‐WACCM Simulations Open
Water vapor in the middle atmosphere plays an essential role in global warming, ozone depletion, and the formation of polar stratospheric and mesospheric clouds. We show that tropical middle atmospheric water vapor simulated with the speci…
View article: Suppressed migrating diurnal tides in the mesosphere and lower thermosphere region during El Niño in northern winter and its possible mechanism
Suppressed migrating diurnal tides in the mesosphere and lower thermosphere region during El Niño in northern winter and its possible mechanism Open
As observed by the Sounding of the Atmosphere using Broadband Emission Radiometry (SABER), the migrating diurnal tide (DW1) in the upper mesosphere and lower thermosphere (MLT) region decreased by ∼ 10 % during El Niño in the Northern Hemi…
View article: Physical and Mental Fatigue Reduce Psychomotor Vigilance in Professional Football Players
Physical and Mental Fatigue Reduce Psychomotor Vigilance in Professional Football Players Open
Purpose : Professional football players experience both physical and mental fatigue (MF). The main aims of this randomized crossover study were to investigate the effect of MF on repeated-sprint ability (RSA) and the effects of both physic…
View article: A case study of a ducted gravity wave event over northern Germany using simultaneous airglow imaging and wind-field observations
A case study of a ducted gravity wave event over northern Germany using simultaneous airglow imaging and wind-field observations Open
An intriguing and rare gravity wave event was recorded on the night of 25 April 2017 using a multiwavelength all-sky airglow imager over northern Germany. The airglow imaging observations at multiple altitudes in the mesosphere and lower t…
View article: Assessment of the quality of ACE-FTS stratospheric ozone data
Assessment of the quality of ACE-FTS stratospheric ozone data Open
For the past 17 years, the Atmospheric Chemistry Experiment Fourier Transform Spectrometer (ACE-FTS) instrument on the Canadian SCISAT satellite has been measuring profiles of atmospheric ozone. The latest operational versions of the level…
View article: Comment on acp-2021-884
Comment on acp-2021-884 Open
Abstract. Previous observations and simulations are controversial as to whether El Niño will increase or decrease the diurnal tide (DW1) in the upper mesosphere and lower thermosphere (MLT) region. This study revisited the…
View article: Comment on acp-2021-884
Comment on acp-2021-884 Open
Abstract. As observed by the Sounding of the Atmosphere using Broadband Emission Radiometry (SABER), the migrating diurnal tide (DW1) in the upper mesosphere and lower thermosphere (MLT) region decreased by â¼
View article: Comment on acp-2021-884
Comment on acp-2021-884 Open
Abstract. As observed by the Sounding of the Atmosphere using Broadband Emission Radiometry (SABER), the migrating diurnal tide (DW1) in the upper mesosphere and lower thermosphere (MLT) region decreased by ∼ …
View article: Global balanced wind derived from SABER temperature and pressure observations and its validations
Global balanced wind derived from SABER temperature and pressure observations and its validations Open
Zonal winds in the stratosphere and mesosphere play important roles in atmospheric dynamics and aeronomy. However, the direct measurement of winds in this height range is difficult. We present a dataset of the monthly mean zonal wind in th…
View article: Would El Niño enhance or suppress the migrating diurnal tide in the MLT region?
Would El Niño enhance or suppress the migrating diurnal tide in the MLT region? Open
Previous observations and simulations are controversial as to whether El Niño will increase or decrease the diurnal tide (DW1) in the upper mesosphere and lower thermosphere (MLT) region. This study revisited the linear response of the MLT…
View article: Comment on angeo-2021-48
Comment on angeo-2021-48 Open
Abstract. An intriguing and rare gravity wave event was recorded on the night of 25 April 2017 using a multiwavelength all-sky airglow imager over northern Germany. The airglow imaging observations at multiple altitudes in…
View article: Comment on angeo-2021-48
Comment on angeo-2021-48 Open
Abstract. An intriguing and rare gravity wave event was recorded on the night of 25Â April 2017 using a multiwavelength all-sky airglow imager over northern Germany. The airglow imaging observations at multiple altitudes i…
View article: Senescence-Induced Vascular Remodeling Creates Therapeutic Vulnerabilities in Pancreas Cancer
Senescence-Induced Vascular Remodeling Creates Therapeutic Vulnerabilities in Pancreas Cancer Open