Results 51 to 60 of about 346,059 (309)

Increased salinity decreases annual gross primary productivity at a Northern California brackish tidal marsh

Environmental Research Letters, 2023
Tidal marshes sequester 11.4–87.0 Tg C yr ^−1 globally, but climate change impacts can threaten the carbon capture potential of these ecosystems. Tidal marshes occur across a wide range of salinity, with brackish marshes (0.5–18 ppt (parts per thousand))
Sarah J Russell, Lisamarie Windham-Myers, Ellen J Stuart-Haëntjens, Brian A Bergamaschi, Frank Anderson, Patty Oikawa, Sara H Knox   +6 more
doaj   +1 more source

Stratospheric sulfate geoengineering enhances terrestrial gross primary productivity [PDF]

, 2015
Abstract. Stratospheric sulfate geoengineering could impact the terrestrial carbon cycle by enhancing the carbon sink. With an 8 Tg yr−1 injection of SO2 to balance a Representative Concentration Pathway 6.0 (RCP6.0) scenario, we conducted climate model simulations with the Community Earth System Model, with the Community Atmospheric Model 4 fully ...
L. Xia, A. Robock, S. Tilmes, R. R. Neely   +3 more
openaire   +1 more source

Low‐Temperature Fabrication of Thymosin β4‐Loaded Soluble Microneedles to Promote Wound Healing by Specific Binding to Downregulated Immune Regulators Vsig4 and IL22rɑ2

Advanced Healthcare Materials, EarlyView.
Schematic diagram depicting the fabrication and application of thymosin β4 (Tβ4)‐loaded microneedle patches for wound treatment. The Tβ4 was loaded into chitosan (CS) and sucrose MNs under mild conditions (4°C, 65% relative humidity). The Tβ4 MN patch specifically binds to the downregulated immune regulators Vsig4 and IL22rα2, thereby accelerating ...
Shilong He, Mei Yuan, Changkang Feng, Yixuan Zhang, Jinjing Che   +4 more
wiley   +1 more source

Gross primary productivity is more sensitive to accelerated flash droughts

Communications Earth & Environment
Flash droughts, characterized by their rapid onset, substantially affect terrestrial ecosystems. However, the sensitivity of ecosystem productivity to the rapid development of flash droughts under varying vegetation conditions remains poorly understood ...
Yangyang Jing, Shuo Wang, Pak Wai Chan, Zong-Liang Yang   +3 more
doaj   +1 more source

Lattice Structures for Bone Replacement: The Intersection of Bone Biomechanics, Lattice Design, and Additive Manufacturing

Advanced Materials Technologies, EarlyView.
This review outlines how understanding bone's biology, hierarchical architecture, and mechanical anisotropy informs the design of lattice structures that replicate bone morphology and mechanical behavior. Additive manufacturing enables the fabrication of orthopedic implants that incorporate such structures using a range of engineering materials ...
Stylianos Kechagias, Maxwell J. Munford, Frederik C.H. Masure, Richard J. van Arkel, Reece N Oosterbeek   +4 more
wiley   +1 more source

Estimating hourly variation in photosynthetically active radiation across the UK using MSG SEVIRI data

, 2014
The amount of photosynthetically active radiation (PAR) reaching the Earth’s surface is a key input variable in most gross primary productivity models. However, poor representation of PAR due to large pixel size or limited temporal sampling is one of the
Dash, J., Milton, E., Pankaew, P.
core   +1 more source

Metabolic compensation constrains the temperature dependence of gross primary production [PDF]

Ecology Letters, 2017
Abstract Gross primary production ( GPP ) is the largest flux in the carbon cycle, yet its response to global warming is highly uncertain. The temperature dependence of GPP is directly linked to photosynthetic physiology, but the ...
Padfield, D, Lowe, C, Buckling, A, Ffrench-Constant, R, Schaum, E, Jennings, S, Shelley, F, Ólafsson, JS, Yvon-Durocher, G   +8 more
openaire   +4 more sources

Different Satellite Products Revealing Variable Trends in Global Gross Primary Production

Journal of Geophysical Research: Biogeosciences, 2023
AbstractCapturing the spatial and temporal dynamics of global gross primary production (GPP) and its underlying mechanisms is important for understanding the global carbon cycle and climate change. Satellite remote sensing enables continuous observation of vegetation dynamics over large regions, providing valuable opportunities for investigating ...
Yu Bai, Shunlin Liang, Aolin Jia, Shenggong Li   +3 more
openaire   +1 more source

A Lung‐Immune Dual‐Humanized Mouse Using Cryopreserved Tissue Enables Infection and Immune Profiling of Human Common Cold Coronaviruses

Advanced Science, EarlyView.
Cryopreserved lung‐humanized mice overcome the dependency to fresh tissues and permit head‐to‐head profiling of all four human common cold coronaviruses versus SARS‐CoV‐2 infection; the model validates Paxlovid efficacy against HKU1 and, when coupled with human immune‐system engraftment, enables interrogation of lung‐resident human immunity and HKU1 ...
Chunyu Cheng, Jing Sun, Chun Lu, Qian Yu, Yiyun He, Bingqing Wu, Deshan Ren, Shuai Ding, Jincun Zhao, Yan Li   +9 more
wiley   +1 more source

Interactions between carbon and nitrogen dynamics in estimating net primary productivity for potential vegetation in North America [PDF]

, 1992
We use the terrestrial ecosystem model (TEM), a process-based model, to investigate how interactions between carbon (C) and nitrogen (N) dynamics affect predictions of net primary productivity (NPP) for potential vegetation in North America. Data on pool
Joyce, L. A., Kicklighter, David W., McGuire, A. David, Melillo, Jerry M., Moore, Berrien, III, Schloss, Annette L., Vorosmarty, Charles J.   +6 more
core   +2 more sources