227,379 research outputs found
Chao Phraya Monthly Streamflow Reconstruction
No full textData and code to reproduce the paper:
Nguyen, H. T. T., Galelli, S., Xu, C., & Buckley, B. M. (2022). Droughts, Pluvials, and Wet Season Timing across the Chao Phraya River Basin: A 254-Year Monthly Reconstruction from Tree Rings and δ18O. Geophysical Research Letters. https://doi.org/10.1029/2022GL10044
Shou-Ching Chao, Ph.D., Named Coordinator of the Writing Center at the U of M Crookston
No full textChao, Shou-ching; Tollefson, Elizabeth. (2007). Shou-Ching Chao, Ph.D., Named Coordinator of the Writing Center at the U of M Crookston. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/221462
Discosea Cavalier-Smith, Chao et Oates 2004
No full textClassDISCOSEA Cavalier-Smith, Chao et Oates, 2004 SubclassLONGAMOEBIA Smirnov, Nassonova, Chao et Cavalier-Smith, 2011 OrderTHECAMOEBIDA Smirnov, Nassonova, Chao et Cavalier-Smith, 2011Published as part of Patsyuk, M. K., 2015, Species Of Naked Amoebae (Protista) New For The Fauna Of Ukraine, pp. 387-392 in Vestnik Zoologii 49 (5) on page 389, DOI: 10.1515/vzoo-2015-0043, http://zenodo.org/record/644921
Vulnerability and Resilience of the Bang Luang Community to Flooding from the Chao Phraya River
No full textFlooding is a natural phenomenon and in the past Thai people have adapted to flood events. However over the years land degradation, deforestation and bad urban practices have exacerbated the impact of flood disasters. This study of flood management in Thailand shows how human activities and interventions have impacted on the river basin system. This research focuses on the vulnerability to flood hazard of the people living or working near the Chao Phraya River. The case study is of the community living or working in the proximity of Wat Bang Luang (Bang Luang Temple) of the Pathum Thani Province, Thailand.
This research explores the capacity of communities to live with or cope with floods. Their adaptations to changes in flood regimes will depend on several factors: political (especially when Thailand has a long history of preoccupation with engineering and technological solutions as the main approach to disaster response), economic, ecological (human modification to flood plains), social (kin-based networks) and cultural factors.
The data collected from the target community showed a power struggle between Thai culture and the dominant hazard management paradigm. This research put a human face on natural disaster and looked at the issue of flooding from the experiences of ordinary people. The findings showed that some members of the community are resilient while others are passive and are more vulnerable to floods. However, it is important not to label any individual or group as either vulnerable or resilient as people can be both at the same time and policy makers need to build on the strengths, rather than focus on the weaknesses and on offering emergency relief
Perspective:Sign Epistasis and Genetic Constraint on Evolutionary Trajectories
No full textEpistasis for fitness means that the selective effect of a mutation is conditional on the genetic background in which it appears. Although epistasis is widely observed in nature, our understanding of its consequences for evolution by natural selection remains incomplete. In particular, much attention focuses only on its influence on the instantaneous rate of changes in frequency of selected alleles via epistatic contribution to the additive genetic variance for fitness. Thus, in this framework epistasis only has evolutionary importance if the interacting loci are simultaneously segregating in the population. However, the selective accessibility of mutational trajectories to high fitness genotypes may depend on the genetic background in which novel mutations appear, and this effect is independent of population polymorphism at other loci. Here we explore this second influence of epistasis on evolution by natural selection. We show that it is the consequence of a particular form of epistasis, which we designate sign epistasis. Sign epistasis means that the sign of the fitness effect of a mutation is under epistatic control; thus, such a mutation is beneficial on some genetic backgrounds and deleterious on others. Recent experimental innovations in microbial systems now permit assessment of the fitness effects of individual mutations on multiple genetic backgrounds. We review this literature and identify many examples of sign epistasis, and we suggest that the implications of these results may generalize to other organisms. These theoretical and empirical considerations imply that strong genetic constraint on the selective accessibility of trajectories to high fitness genotypes may exist and suggest specific areas of investigation for future research
Villa, Fierro, and Chao
No full textGen.Caption: Villa talking with soldiers.Caption: Left to right: Gen. Villa, Gen. Fierro, Gen. Chao (Gov. of Chihuahua).Photograph taken probably 1910-192
Elements for a political ecology of river basins development: The case of the Chao Phraya River Basin, Thailand
No full textRiver basin developmentHistory
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