101,483 research outputs found
Does Economic Optimisation Explain LAI and Leaf Trait Distributions Across an Amazon Soil Moisture Gradient?
No full textModel outputs presented in Flack-Prain, S., Meir, P., Malhi, Y., Smallman, T. L., & Williams, M. (2020).Does Economic Optimisation Explain LAI and Leaf Trait Distributions Across an Amazon Soil Moisture Gradient?. Global Change Biology
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
Letter, [Author unclear] to Paulina T. Merritt
No full textHandwritten letter to Paulina Merritt from an unknown author, October 1, 1876.
Pengaruh Content Marketing, E-WOM dan Brand Image Terhadap Keputusan Pembelian (Studi Pada Konsumen Flack Shield Your Shoes)
No full textPenelitian ini dilakukan untuk mengetahui dan menjelaskan pengaruh content
marketing, Electronic Word of Mouth dan Brand Image terhadap keputusan pembelian
konsumen Flack Shield Your Shoes. Jenis penelitian pada skripsi ini menggunakan
jenis penelitian eksplanatori (explanatory research) dengan pendekatan kuantitatif.
Populasi penelitian ini adalah pengguna jasa cuci sepatu Flack yang juga mengikuti
Instagram Flack dan sampel dalam penelitian ini diperoleh 96 orang melalui
perhitungan rumus Cochran dengan teknik purposive sampling. Sumber data ini
menggunakan analisis regresi linear berganda dengan bantuan software SPSS 20.
Hasil penelitian ini menunjukkan Content Marketing berpengaruh positif
signifikan terhadap Keputusan Pembelian, dengan nilai t hitung 2,307 > t table 1,986
dan sig. < 0,05. Electronic Word of Mouth berpengaruh positif signifikan terhadap
Keputusan Pembelian, dengan nilai t hitung 4,104 > t table 1,986 dan sig. < 0,05. Brand
Image berpengaruh positif signifikan terhadap Keputusan Pembelian, dengan nilai t
hitung 4,530 > t table 1,986 dan sig. < 0,05. Content Marketing, Electronic Word of
Mouth dan Brand Image secara Bersama-sama berpengaruh positif signifikan terhadap
Keputusan Pembelian dengan nilai f hitung 56,789 > f table 2,704 dan nilai sig. <0,05.
Nilai koefisien determinasi (R2) pada penelitian ini adalah 0,638 yang menunjukkan
bahwa proporsi pengaruh dari Content Marketing (X1), Electronic Word Of Mouth
(X2), dan Brand Image (X3) dengan Keputusan Pembelian sebanyak 63,8%.
Sedangkan sisanya 36,2% dipengaruh oleh variabel lain yang tidak diperhatikan dalam
penelitian ini
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
Handwritten biographical information on Paulina T. McClung Merritt
No full textA handwritten biography of Paulina T. McClung Merritt by an unknown author, 1892.
Heterogeneous and tissue-specific regulation of effector T cell responses by IFN-gamma during Plasmodium berghei ANKA infection.
No full textIFN-γ and T cells are both required for the development of experimental cerebral malaria during Plasmodium berghei ANKA infection. Surprisingly, however, the role of IFN-γ in shaping the effector CD4(+) and CD8(+) T cell response during this infection has not been examined in detail. To address this, we have compared the effector T cell responses in wild-type and IFN-γ(-/-) mice during P. berghei ANKA infection. The expansion of splenic CD4(+) and CD8(+) T cells during P. berghei ANKA infection was unaffected by the absence of IFN-γ, but the contraction phase of the T cell response was significantly attenuated. Splenic T cell activation and effector function were essentially normal in IFN-γ(-/-) mice; however, the migration to, and accumulation of, effector CD4(+) and CD8(+) T cells in the lung, liver, and brain was altered in IFN-γ(-/-) mice. Interestingly, activation and accumulation of T cells in various nonlymphoid organs was differently affected by lack of IFN-γ, suggesting that IFN-γ influences T cell effector function to varying levels in different anatomical locations. Importantly, control of splenic T cell numbers during P. berghei ANKA infection depended on active IFN-γ-dependent environmental signals--leading to T cell apoptosis--rather than upon intrinsic alterations in T cell programming. To our knowledge, this is the first study to fully investigate the role of IFN-γ in modulating T cell function during P. berghei ANKA infection and reveals that IFN-γ is required for efficient contraction of the pool of activated T cells
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Pelevin’s Trinity in the novel “t”: author – protagonist – reader
No full textThe article attempts to interpret Pelevin's artistic strategy in the novel "T" by exploring its subject organization and addressing the key problems of the author, the protagonist, and the reader as they are seen by the researcher. The article analyzes the peculiarities of constructing the narrative reality in the novel "T", and goes on to discuss Pelevin's philosophic models of the development of the humankind, and the emergence of his new anthropology
"Le médecin qui trie les malades n’est pas là pour dire qui aura ou non droit à la vie, mais pour sauver le plus de vies possible": tribune dans LeMonde 16 mars 2020
No full textInternational audienceLa question du tri des malades est un enjeu éthique et démocratique majeur, selon Frédérique Leichter-Flack, spécialiste de l’éthique, qui détaille pourquoi.Faudra-t-il choisir qui tenter de soigner et qui laisser mourir ? Avec les témoignages venus d’Italie du Nord et d’Alsace, avec l’appel martelé à un sursaut de responsabilité de chacun pour éviter la saturation totale des services de réanimation, la sidération grandit face à cette hypothèse d’une pénurie des ressources de survie. Trier entre les vies à sauver fait horreur : c’est la quintessence même du choix tragique.L’heure n’est pourtant pas à dramatiser davantage, mais à comprendre ce qu’on appelle le tri, afin que la société en prenne conscience et en discute pour la part qui lui revient
- …
