249,514 research outputs found
Editorial: Ethylene: A Key Regulatory Molecule in Plants
No full textEthylene is a simple gaseous phytohormone with multiple roles in regulation of metabolism at cellular, molecular, and whole plant level (Pierik et al., 2006; Lin et al., 2009; Schaller, 2012; Khan N. A. and Khan M. I. R., 2014). It influences performance of plants under optimal and stressful environments by interacting with other signaling molecules (Müller and Munné-Bosch, 2015; Thao et al., 2015). The action of ethylene depends on its concentration in cell and the sensitivity of plants to the hormone (Pierik et al., 2006; Habben et al., 2014; Arraes et al., 2015; Sun et al., 2016). In recent years, research on ethylene has been focused due to its dual action on the regulation of plant processes at physiological and molecular level. The aim of the current research topic was to explore and update our understanding on its regulatory role of ethylene in plant developmental mechanisms at cellular or whole plant level under optimal and changing environmental conditions. The present edited volume includes original research papers and reviews articles describing ethylene’s regulatory role in plant development during plant ontogeny and how it interacts with biotic and abiotic stress factors. For better understanding of the articles included in this volume, papers have been grouped into three categories
Life in lockdown: Diary of a Pakistani student in Beijing
No full textJournal #2 from Media Rise's Quarantined Across Borders Collection by Azmat Khan. From Pakistan. Quarantined in China, Beijing, Chaoyang district.Media Rise Publications. Quarantined Across Borders Collection. Edited by Dr. Srividya "Srivi" Ramasubramanian.The essay illustrates my initial state of disorientation but also my struggle and hope for new life during lockdow
The Folio: F. C. C. Magazine
No full textImtiaz Ahmad Khan-Editorial. pp. 1; Rice, C.H.-Speech-Books, Balls and Bells. pp. 2-4; Imtiaz Ahmad Khan-Article-Life and Art. pp. 4-6; Khan, M. Anwarullah-The Introduction week. pp. 6-7; Sports-Basket Ball. pp. 8; Moinuddin Ahmad-Story-A Night Among Pine Trees. pp. 9-13; Poetry-A Psalm of Wife. pp. 14; Ikramullah, M.-My First Impressions of the Forman Christian College. pp. 15-16; K. Habib Ullah-Divorce Your Parents. pp. 16-17; Mohd. Nasim-ur-Riaz-That was my First. pp. 17-19; Mohd. Naseer Butt-The Messenger of Hope and Light. pp. 19-20; Khan, T.F.S.-New Species. pp. 21; Jivanandham, N.J.-Words, Words, Words. pp. 21-22; Manry, J.C.-Article-Christmas in Modern American Poetry. pp. 22-24; Khan, Manawara Shadi-C's. pp. 25; The Folio [Urdu] 32 p
Market response to environmental social and governance performance: A global analysis
No full textMarket remediation of the cost of externalities depends on the market's ability to read and interpret environmental, social, and governance (ESG) reporting. This study is designed to estimate the market reaction to ESG performance using a comprehensive dataset of 5038 firms from 73 countries for 2016–2021. Overall, we found an asymmetric response highlighting ESG as a source of friction for market efficiency. We further conducted a geographical analysis and found that the results are biased toward different regions. The European Union market indicators exhibited a negative association, which is consistent for each model. This symmetric behavior authenticates EU initiatives for the internalization of ESG factors. In comparison, this behavior is asymmetric for the Americas, Asia, and the Oceanian and African capital markets. The results are robust to alternative econometric methodologies and each pillar of ESG disclosure
A study of a cooling tower with variable packing heights
No full textDue to the character of the original source materials and the nature of batch digitization, quality control issues may be present in this document. Please report any quality issues you encounter to [email protected], referencing the URI of the item.Not availabl
Simulation of thermal plant optimization and hydraulic aspects of thermal distribution loops for large campuses
No full textFollowing an introduction, the author describes Texas A&M University and its utilities system. After that, the author presents how to construct simulation models for chilled water and heating hot water distribution systems. The simulation model was used in a $2.3 million Ross Street chilled water pipe replacement project at Texas A&M University. A second project conducted at the University of Texas at San Antonio was used as an example to demonstrate how to identify and design an optimal distribution system by using a simulation model. The author found that the minor losses of these closed loop thermal distribution systems are significantly higher than potable water distribution systems. In the second part of the report, the author presents the latest development of software called the Plant Optimization Program, which can simulate cogeneration plant operation, estimate its operation cost and provide optimized operation suggestions. The author also developed detailed simulation models for a gas turbine and heat recovery steam generator and identified significant potential savings. Finally, the author also used a steam turbine as an example to present a multi-regression method on constructing simulation models by using basic statistics and optimization algorithms. This report presents a survey of the author??s working experience at the Energy Systems Laboratory (ESL) at Texas A&M University during the period of January 2002 through March 2004. The purpose of the above work was to allow the author to become familiar with the practice of engineering. The result is that the author knows how to complete a project from start to finish and understands how both technical and nontechnical aspects of a project need to be considered in order to ensure a quality deliverable and bring a project to successful completion. This report concludes that the objectives of the internship were successfully accomplished and that the requirements for the degree of Degree of Engineering have been satisfied
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