Results 161 to 170 of about 8,105,492 (290)

Enriched Soil Organic Carbon Underpins Long‐Term Stable Crop Productivity Across China's Croplands

open access: yesAdvanced Science, EarlyView.
Quantifying the nonlinear relationships and causal effects of soil organic carbon (SOC) on crop stability reveals specific critical thresholds and saturation points. This partitions the national SOC spectrum into three functional phases. Integrating these spatial delineations with high‐resolution maps of marginal gains pinpoints regions with the ...
Yuyang Huang   +11 more
wiley   +1 more source

Human Engineered Heart Tissues Reproduce Trigger‐ and Substrate‐Driven Mechanisms of Ventricular Tachycardia

open access: yesAdvanced Science, EarlyView.
Engineered heart tissues (EHTs) derived from human iPSCs replicate mechanisms of ventricular tachycardia at the tissue level. Acquired Long‐QT conditions cause early afterdepolarizations, wavebreak, and transient rotors; in contrast, focal cryoinjury forms a stable substrate that supports ongoing reentry.
Matthew Fiedler   +4 more
wiley   +1 more source

Nonparametric Tests for Treatment Effect Heterogeneity [PDF]

open access: yes
A large part of the recent literature on program evaluation has focused on estimation of the average effect of the treatment under assumptions of unconfoundedness or ignorability following the seminal work by Rubin (1974) and Rosenbaum and Rubin (1983 ...
Richard K. Crump   +3 more
core   +2 more sources

Disrupted Top‐Down Modulation as a Mechanism of Impaired Multisensory Processing in Autistic Children

open access: yesAdvanced Science, EarlyView.
In this work, we show that multisensory integration in autistic children is characterized by attenuated ERP responses and α‐band desynchronization, together with reduced theta‐band communication between parieto‐occipital and frontal regions. The intermediate neural profile observed in unaffected siblings raises the possibility that altered cortical ...
Theo Vanneau   +3 more
wiley   +1 more source

Steps Toward Vitrification and Banking of Coral Larvae Using Field‐Friendly Cryomesh Technology

open access: yesAdvanced Science, EarlyView.
Cryomesh enables a low‐tech cryopreservation method, adding a valuable option to the coral reef conservation toolkit. The approach reveals how size, toxicity, and developmental stage govern larval survival, while modeling links cooling and rewarming rates to a theoretical upper volume limit.
E. Michael Henley   +15 more
wiley   +1 more source

Loss of Lepr in Fibroblasts Drives Tumor Development by Promoting Macrophage Infiltration

open access: yesAdvanced Science, EarlyView.
TNFα and TGFβ signaling reprograms Lepr+ fibroblasts toward a LeprnegMmphigh inflammatory CAF (iCAF) state, with downregulation of the Tcf21‐Lepr axis contributing to this transition. Lepr loss induces Csf3, which contributes to the enhanced macrophage‐recruiting capacity of these iCAFs, thereby promoting tumor development. Thus, inflammatory signaling
Manyu Song   +13 more
wiley   +1 more source

Nonparametric Efficiency Estimation in Stochastic Environments (II) [PDF]

open access: yes
We consider the issues of noise-to-signal estimation, finite sample performance andhypothesis testing for the nonparametric efficiency estimation technique proposed inCherchye, L., T. Kuosmanen and G. T. Post (2001) 'Nonparametric efficiencyestimation in
Post, G.T., Cherchye, L.
core  

Home - About - Disclaimer - Privacy