1,113 research outputs found
The importance of physiological, structural and trait responses to drought stress in driving spatial and temporal variation in GPP across Amazon forests
No full textFolders contain experimental model runs outlined in Flack-Prain et al., 2019, whereby the (i) LAI, (ii) meteorology, (iii) rooting properties, (iv) soil, and (v) leaf photosynthetic capacity for each plot were alternated to that of all other plots.
Plots included in analysis are CAX04, CAX06, TAM05, TAM06, KEN01, KEN02, TAN05 (Tanguro).
File names are ordered PLOT1_PLOT2 where PLOT1 is focal plot, and PLOT2 is the plot of the alternated factor.
"_down" and "_up" are model runs under upper and lower LAI standard error.
file headers are as follows
Daily:
mod_ET(mm/d) Modelled evapotranspiration
mod_LE(MJ/m2/d) Modelled latent energy (latent heat flux)
mod_SoilE(mm/d) Modelled soil evaporation
mod_can_evap(mm/d) Modelled canopy evaporation (evaporated intercepted rainfall)
Soil_WP(MPa) Weighted soil water ptential
plant_resistance Plant resistance to waterflow
canopy_soil_resistance Canopy weighted soil+root hydraulic resistance to water flow
LSC(mmol/m2/s/Mpa) Leaf-soil conductance
sapflow(mm/d) Amount of water that moves through LSC continuum
mean-LAI(m2m-2) Mean Leaf Area Index
Flux:
Ra Autotrophic respiration
Af Carbon allocated to foliage
Aw Carbon alloacted to stem
Ar Carbon allocated to roots
Acr Carbon allocated to coarse roots
Lf Litterfall from foliage
Lw Litterfall from stem
Lr Litterfall from roots
Lcr Litterfall from coarse roots
Rh1 Heterotrophic respiration (litter)
Rh2 Heterotrophic respiration (soil)
D Decomposition
G Gross Primary Productivity
neesum Net Ecosystem Exchange
sumresp total_ET(mm/d)
resp_main Maintenance respiration
resp_growth Growth respiration
resp_l Leaf maintenance respiration
resp_s Stem maintenance respiration
resp_r Root maintenance respiration
resp_cr Coarse root maintenance respiration
resp_l_g Leaf growth respiration
resp_s_g Stem growth respiration
resp_r_g Root growth respiration
resp_cr_g Coarse root growth respiration
alloc_to_labile Carbon allocated to labile
Field data used in model calibration and validation can be accessed via Doughty et al., 2015.
Flack-Prain, S., Meir, P., Malhi, Y., Smallman, T. L., & Williams, M. The importance of physiological, structural and trait responses to drought stress in driving spatial and temporal variation in GPP across Amazon forests.
https://doi.org/10.5194/bg-2019-175
Doughty, C. E., Metcalfe, D. B., Girardin, C. A. J., Amézquita, F. F., Cabrera, D. G., Huasco, W. H., ... & Feldpausch, T. R. (2015). Drought impact on forest carbon dynamics and fluxes in Amazonia. Nature, 519(7541), 78.
doi:10.1038/nature1421
The Impact of Climate Change and Climate Extremes on Sugarcane Production
No full textWe combine the Soil-Plant-Atmosphere model with detailed timeseries measurements from experimental sugarcane plots in Guangxi, China, and São Paulo State, Brazil. We first calibrated and validated modelled carbon and water cycling against field flux and biometric data. Second, we simulated sugarcane growth under the historical climate (1980-2018), and 6 future climate projections (2015-2100). From these simulations we retrieved modelled sugarcane yield, days to reach maturity, gross primary productivity (GPP), evapotranspiration, PAR incident on the canopy, leaf area index (LAI), and soil water potential (SWP).
Next, to quantify the impact of individual climate drivers on sugarcane yield, we generated synthetic climate forcings. Within the historical climate dataset (1980-2018) we computed the mean value for each climate driver, for each year (i.e. temperature, CO2, precipitation, PAR and VPD). For each climate driver, we calculated the median of the annual means. We identified the annual timeseries corresponding to the median for each climate driver. For each climate projection, we substituted, one by one, the temperature, CO2, precipitation, PAR and VPD, with that of the median timeseries.
We then ran the model with the new synthetic climate forcings and retrieved the yield, carbon, and water flux estimates for each alternation. For each year, under each climate projection, at each site, we calculated the difference between yield, carbon, and water flux estimates under the projected and alternated-synthetic climate to compute a ‘climate effect’ of each individual climate driver.The dataset contains a file for each site (Guangxi, China and São Paulo Brazil). For each climate scenario, and each year we include model estimates of sugarcane yield, days taken to reach maturity, gross primary productivity (GPP), evapotranspiration, PAR incident on the canopy, leaf area index (LAI), and soil water potential (SWP). Estimates labelled nominal, are those simulated under the projected climate. Estimates labelled airt, CO2, precipitation, PAR and VPD, are those generated under synthetic climate forcings where the air temperature, atmospheric CO¬2, precipitation, photosynthetically active radiation, and vapor pressure deficit were alternated to the median of the historical timeseries
(r,r)-disynephrine ether bis(hydrogen sulfate)
No full textThe asymmetric unit of the title compound [systematic name: (R, R)-2,4-bis(4-hydroxyphenyl)-N,N'-dimethyl-3-oxapentane-1,5- diammonium bis(hydrogen sulfate)], C18H26N2O32+center dot-2HSO(4)(-), contains one half-cation and one hydrogen sulfate anion. The cation has crystallographically imposed twofold symmetry with the rotation axis passing through the central ether O atom. Hydrogen bonds between the hydroxy group and amine H atoms of the cation to two hydrogen sulfate anions link the three ions in a ring motif. A three-dimensional network is accomplished by additional O-H center dot center dot center dot O hydrogen bonds between the anions and by N-H center dot center dot center dot O hydrogen bonds between the cations. Disorder with equally occupied sites affects the H-atom position in the anio
sj-docx-1-pec-10.1177_03010066221096987 - Supplemental material for The pairs training effect in unfamiliar face matching
No full textSupplemental material, sj-docx-1-pec-10.1177_03010066221096987 for The pairs training effect in unfamiliar face matching by Kay L. Ritchie, Tessa R. Flack, Elizabeth A. Fuller, Charlotte Cartledge and Robin S. S. Kramer in Perception</p
sj-pdf-2-jps-10.1177_24755303221079814 - Supplemental Material for The Disease Burden of Generalized Pustular Psoriasis: Real-World Evidence From CorEvitas' Psoriasis Registry
No full textSupplemental Material, sj-pdf-2-jps-10.1177_24755303221079814 for The Disease Burden of Generalized Pustular Psoriasis: Real-World Evidence From CorEvitas' Psoriasis Registry by Lebwohl M, Medeiros R A, Mackey R H, Harrold L R, Valdecantos W C, Flack M, Golembesky A K, Kotowsky N and Strober B in Journal of Psoriasis and Psoriatic Arthritis</p
sj-pdf-1-jps-10.1177_24755303221079814 - Supplemental Material for The Disease Burden of Generalized Pustular Psoriasis: Real-World Evidence From CorEvitas’ Psoriasis Registry
No full textSupplemental Material, sj-pdf-1-jps-10.1177_24755303221079814 for The Disease Burden of Generalized Pustular Psoriasis: Real-World Evidence From CorEvitas’ Psoriasis Registry by Lebwohl M, Medeiros R A, Mackey R H, Harrold L R, Valdecantos W C, Flack M, Golembesky A K, Kotowsky N and Strober B in Journal of Psoriasis and Psoriatic Arthritis</p
Charge transfer complexes and radical cation salts of chiral methylated organosulfur donors
No full textThe single crystal X-ray structure of the all-axial conformer of the (R,R,R,R) enantiomer of the chiral donor tetramethyl-BEDT-TTF (TM-BEDT-TTF) was described and compared to the all-equatorial conformer. (S,S,S,S)-Tetramethyl-BEDT-TTF formed crystalline 1 : 1 complexes with TCNQ and TCNQ-F4, as well as a THF solvate of the TCNQ complex. Donors bis((2S,4S)-pentane-2,4-dithio)tetrathiafulvalene and (ethylenedithio)((2S,4S)-pentane-2,4-dithio)tetrathiafulvalene, which contain seven-membered rings bearing chirally oriented methyl groups, only formed complexes with TCNQ-F4. The TCNQ-F4 complexes contain planar organosulfur systems, in contrast to the TCNQ complexes in which there is minimal charge transfer. A variety of crystal packing modes were observed. Electrocrystallization experiments with both enantiomers and the racemic form of tetramethyl-BEDT-TTF afforded mixed valence radical cation salts with the AsF6 and SbF6 anions formulated as (TM-BEDT-TTF)2XF6 (X = As, Sb). Electrical conductivity was only found in one charge transfer complex, while the radical cation salts are all semiconducting
Novel enantiopure bis(pyrrolo)tetrathiafulvalene donors exhibiting chiral crystal packing arrangements
No full textTwo novel enantiopure bis(pyrrolo[3,4-d])tetrathiafulvalene derivatives, substrates for preparing chiral conducting materials, show chiral crystal packing arrangements in which successive layers are rotated in accordance with an exact or approximate 43 axis. The corresponding donors containing fused dihydropyrrolegroups, and thus four more hydrogen atoms, form stacks along a crystal axis
Future Secretaries of America, 1973-1974 Members 1
No full textThese students were members of Future Secretaries of America at Jacksonville State University in 1973-1974. Shown from left are, first row, C. Grant, A. Johnson, A. Horton, L. Flack, B. Mackey, M. Riddle, second row, J. Morrison, B. Franz, D. Nelson, O. J. Sligh, M. Porritz, J. Pope, Mrs. Willodean Collins (faculty advisor), third row, L. Harris, E. Limbaugh, D. Ripple, L. Smith, J.E. Quisouet, R. White, C. Cooke.https://digitalcommons.jsu.edu/lib-ac-histimg/45326/thumbnail.jp
Grangeville crew portrait, 1971
No full textA group portrait of the crew for the Grangeville Smokejumper base.
Front Row L-R: BILL ALLRED, BILL WOOLWORTH, JOE DELANEY, ED LERTZ, STEVE WILLIAMS, JOHN CRUZ, TOM COLEMAN, JIM CYR (SQ. LEADER), DEAN LOGAN (PILOT).
Back Row: L-R: WAYNE HUGHES RET. PILOT, GARY MOLSNESS, PAUL MAY, CHUCH FLACK, GEORGE GLETM, LEE DEEDS, MIKE SMITH, FRED AXELROD, BUD CLARK (SQ. LEADER), HOMER COURVILLE (FORMAN).
MISSING BILL REED RET. PILOT.https://dc.ewu.edu/nsa_crewpics/1363/thumbnail.jp
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