Publications by authors named "Hamed Yousefzadeh"
Despite their long evolutionary history, the genomic basis of adaptation and speciation in "living fossil" plants remain largely unexplored. Parrotia, a Tertiary relict tree genus with two extant species, P. subaequalis and P.
View Article and Find Full Text PDFUsing MOFs in powder form leads to mass transfer limitations and large pressure drops in packed bed adsorbers. Use of MOF/aerogel composites (called MOFACs) in bead form could overcome these challenges without compromising the MOF's adsorption performance, as observed with other shaping methods, such as the use of polymeric binders. In this study, Ca-alginate-aerogel-MIL-160(Al) MOFACs (AlgMIL160) were prepared via sol/gel-assisted direct mixing methods, followed by supercritical drying.
View Article and Find Full Text PDFAerogels are remarkable nanoporous materials with unique properties such as low density, high porosity, high specific surface area, and interconnected pore networks. In addition, their ability to be synthesized from various precursors such as inorganics, organics, or hybrid, and the tunability of their properties make them very attractive for many applications such as adsorption, thermal insulation, catalysts, tissue engineering, and drug delivery. The physical and chemical properties and pore structure of aerogels are crucial in determining their application areas.
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- The study examines the genetic divergence of apples in the Caucasus and Iran, focusing on wild and cultivated varieties using 26 microsatellite markers from 550 samples.
- Researchers identified two genetically distinct cultivated apple populations in Iran, which originated from specific domestication events of Malus orientalis, diverging from the standard domesticated apple (Malus domestica).
- The findings highlight Iran's significance in apple domestication history, the role of gene flow between wild and cultivated apples, and the influence of climate change on genetic diversity, setting the stage for future conservation and breeding efforts.
Chemical absorption of CO into aqueous amine solutions using a nonstirred bubble column was experimentally investigated. The performance of CO absorption of four different primary and secondary amines including monoethanolamine (MEA), piperazine (PZ), 2-piperidineethanol (2PE), and homopiperazine (HPZ) were compared. The effects of initial concentration of amine, the inlet mole fraction of CO, and solution temperature on the rate of CO absorption and CO loading (mol CO/mol amine) were studied in the range of 0.
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- The study focuses on a small tree species from the Rosaceae family, which is endangered in the Hyrcanian forest due to habitat degradation and poor management practices.
- Researchers analyzed genetic diversity across five populations using 10 SSR markers, finding a significant reduction in effective population size and defining two genetic clusters.
- To mitigate extinction risk, the study suggests improving habitat connectivity and facilitating genetic exchange among small, isolated populations in the Hyrcanian forest.
Article Synopsis
- Relict species are crucial for studying how plant and animal distributions differ across continents, particularly focusing on the unique patterns seen between East Asia and southern Europe/West Asia.
- This study presents the first detailed phylogenetic analysis using DNA sequencing, which includes all species within a specific relict genus, and clarifies taxonomic classifications by integrating morphological data.
- Findings indicate that two main sections of this genus emerged during the early Miocene and the formation of the Gobi Desert significantly contributed to the geographic separation observed today, with further diversification occurring in the late Miocene.