scholarly journals The triose phosphate utilization limitation of photosynthetic rate: out of global models but important for leaf models

2021 ◽  
Author(s):  
Luke M. Gregory ◽  
Alan M. McClain ◽  
David M. Kramer ◽  
Jeremy D. Pardo ◽  
Kaila E. Smith ◽  
...  
Keyword(s):  
Photosynthetic Rate ◽  
Global Models ◽  
Triose Phosphate

scholarly journals The triose phosphate utilization limitation of photosynthetic rate: out of global models but important for leaf models

2021 ◽  
Author(s):  
Luke Gregory ◽  
Alan McClain ◽  
David Kramer ◽  
Jeremy Pardo ◽  
Kaila Smith ◽  
...  
Keyword(s):  
Photosynthetic Rate ◽  
Global Models ◽  
Triose Phosphate

scholarly journals The triose phosphate utilization limitation of photosynthetic rate: out of global models but important for leaf models

2021 ◽  
Author(s):  
Luke Gregory ◽  
Alan McClain ◽  
David Kramer ◽  
Jeremy Pardo ◽  
Kaila Smith ◽  
...  
Keyword(s):  
Photosynthetic Rate ◽  
Global Models ◽  
Triose Phosphate

Exploring the Futures of the Ummah

1998 ◽  
Vol 15 (1) ◽  
pp. 1-30
Author(s):  
Sohail Lnayatullah
Keyword(s):  
Turning Point ◽  
Ways Of Knowing ◽  
Global Models ◽  
Limits To Growth ◽  
Islamic World ◽  
Poststructural Theory ◽  
The Future

This article is both a critique of ways of approaching the future and a presentation of scenarios of the Islamic world a generation ahead. The critique covers various global models, including The Club of Rome's classic Limits to Growth (L TG), 1 Mankind at the Turning Point (MTP), and World 2000, and other approaches to the understanding of the future. Drawing from poststructural theory, we ask: What is missing, who does the analysis privilege, and what epistemological frames or ways of knowing are accentuated, are made primary, by the models used? What can the Islamic world learn from these models? We attempt to go a step further than merely asking the Marxist class question of who benefits financially. For us, the issue is deeper. We are concerned with what knowledge frames and (more appropriately, from an Islamic per­spective) what civilizational frames are privileged, are considered more important. An appendix presents recommendations focused on making the Islamic urrunah more future oriented. However, global models are only one way of approaching or under­standing the future. There are other ways of approaching the study of the future from which can be derived specific assertions about issues, trends, and scenarios as to the likely and possible shape of the future. We also inquire into the utility of these models for better understanding the future of the Islamic ummah. We conclude with visions of the future of the ummah ...

Diurnal variation in net photosynthetic rate and influencing environmentalfactors of Elaeagnus mollis Diels leaf

2009 ◽  
Vol 17 (3) ◽  
pp. 474-478
Author(s):  
Qun-Long LIU ◽  
Chan-Juan NING ◽  
Duo WANG ◽  
Guo-Liang WU ◽  
Hong-Mei ZHANG ◽  
...  
Keyword(s):  
Diurnal Variation ◽  
Net Photosynthetic Rate ◽  
Photosynthetic Rate ◽  
Elaeagnus Mollis

Spectral damping scaling factors for horizontal components of ground motions from subduction earthquakes using NGA-Subduction data

2021 ◽  
pp. 875529302110279
Author(s):  
Sanaz Rezaeian ◽  
Linda Al Atik ◽  
Nicolas M Kuehn ◽  
Norman Abrahamson ◽  
Yousef Bozorgnia ◽  
...  
Keyword(s):  
Ground Motions ◽  
Damping Ratio ◽  
Spectral Shape ◽  
Parametric Models ◽  
Scaling Factors ◽  
Global Models ◽  
Motion Models ◽  
Subduction Earthquakes ◽  
Crustal Earthquakes ◽  
Subduction Zone Earthquakes

This article develops global models of damping scaling factors (DSFs) for subduction zone earthquakes that are functions of the damping ratio, spectral period, earthquake magnitude, and distance. The Next Generation Attenuation for subduction earthquakes (NGA-Sub) project has developed the largest uniformly processed database of recorded ground motions to date from seven subduction regions: Alaska, Cascadia, Central America and Mexico, South America, Japan, Taiwan, and New Zealand. NGA-Sub used this database to develop new ground motion models (GMMs) at a reference 5% damping ratio. We worked with the NGA-Sub project team to develop an extended database that includes pseudo-spectral accelerations (PSA) for 11 damping ratios between 0.5% and 30%. We use this database to develop parametric models of DSF for both interface and intraslab subduction earthquakes that can be used to adjust any subduction GMM from a reference 5% damping ratio to other damping ratios. The DSF is strongly influenced by the response spectral shape and the duration of motion; therefore, in addition to the damping ratio, the median DSF model uses spectral period, magnitude, and distance as surrogate predictor variables to capture the effects of the spectral shape and the duration of motion. We also develop parametric models for the standard deviation of DSF. The models presented in this article are for the RotD50 horizontal component of PSA and are compared with the models for shallow crustal earthquakes in active tectonic regions. Some noticeable differences arise from the considerably longer duration of interface records for very large magnitude events and the enriched high-frequency content of intraslab records, compared with shallow crustal earthquakes. Regional differences are discussed by comparing the proposed global models with the data from each subduction region along with recommendations on the applicability of the models.

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