197,389 research outputs found
Certain compositions of abstract polynomials and their pseudo-derivatives
No full textAbstractThe present study is motivated by some results due to N. Zaheer and M. Alam (Zeros of polar-composite polynomials in algebraically closed fields, Proc. London Math. Soc. (3) 40 (1980), 527–552) and to a classical result of M. Marden (Geometry of polynomials, in “Math. Surveys,” Vol. 3, Amer. Math. Soc., Providence, RI, 1966). In fact, we determine the location of null-sets of certain compositions of abstract polynomials and their pseudo-derivatives in vector spaces. Our main theorem generalizes simultaneously the corresponding results of Zaheer and Alam and of Marden, and furnishes several new interesting special cases, some being supported by the nice geometry of the complex plane
The importance of network goals for strategic chain management
No full textNowadays food products are increasingly produced in supply chain networks that involve numerous firms. Due to their pyramidal-hierarchical structure, such networks possess a focal company that coordinates the network. The managerial task of the focal company is to work out collective strategy that addresses cooperation and coordination problems at the firm, dyadic and network levels. These strategies must take into account that at each level specific goals must be achieved. Though the focal company is a strategy setting unit that sets network goals, other network actors may perceive these goals as firm-level goals of the focal company. Therefore, conflicts may occur in supply chain networks.Supply chain networks, focal company, network goals, Agribusiness,
N-(3-Nitrobenzylidene)aniline
No full textIn the title compound, C13H10N2O2, a Schiff base derivative, the dihedral angle between the two aromatic rings is 31.58 (3)°. The C=N double bond is essentially coplanar with the nitrophenyl ring. The torsion angle of the imine double bond is 175.97 (13)°, indicating that the C=N double bond is in a trans configuration. The crystal structure is stabilized by C-H...O contacts and [pi]-[pi] interactions (centroid-centroid distances of 3.807 and 3.808 Å). Key indicators: single-crystal X-ray study; T = 173 K; mean σ(C–C) = 0.002 Å; R factor = 0.034; wR factor = 0.093; data-to-parameter ratio = 10.3
Folio
No full textSajjad Sulaiman, Javed A. Kiyyani-Editorial. pp. 4-6; Sajjad Sulaiman-Interview-Our Man in India. pp. 9-19; Memories-Recollections of a Formanite. pp. 20-22; Plair, Jaffery K.-Memories-Those were the Year. pp. 23-24;Ashraf M. Khan-Article-Motivation for Change. pp. 25-28; Javed A. Kiyani-Article-Cultural Identity of Pakistan. pp. 29-33; Tariq Habib-The Delicious Art of Insult. pp. 30-36; Sulaiman Batalvi-Article-Writing about Films. pp. 37-43; Hussein Masood-Story-A Pledge is Honoured. pp. 44-45; Sajjad Sulaiman-Article-The Growing Menace of Political Terrorism. pp. 46-51; Muhammad Farooq-Strange but True. pp. 52-53; Shafiq Ahmad-Article-Helping Hands. pp. 54-57; Muhammad Zaheer Dogar-Poetry-Reveries, Ecstasy. pp. 58-59; Peter, Simon-Poetry-A Formanite in the Positive Sense. pp. 60-61; Asim Nabi-Essay-Justice in Society. pp. 62-63; Sajjad Sulaiman-Article-Development and Underdevelopment. pp. 64-67; Asif Nawaz-Essay-The Ends of the Earth. pp. 68-69; Essay-The Man Changing His View. pp. 70-72; Haroon-ur-Rasheed-Poetry-O �Mother, see me off. pp. 73-74; Rao Mohammad Zaheer Khan-Poetry-The Swan Song. pp. 75; Mohsin Sohail-A Character Certificate. pp. 76; Adnan-Cartoon. pp. 78-80; Folio 1981 [Urdu-Punjabi]. 176 p.Editorial Board. page 7; Students Union 1980-81. page 8; F.C. College Sports Association 1981-82. page 77; Cartoons. pp. 78-80; Students Union 1981-82. before page 9 (Urdu); Editorial Board. after Urdu Editoria
The design of the CASOH process pilot to test the decarbonisation of blast furnace gas using the Ca-Cu chemical loop
No full textWe present the design features of a TRL7 pilot under construction in the Arcelor Mittal´s Gas Lab site in Asturias (Spain), to demonstrate the viability of the Calcium Assisted Steel-mill Off-gas Hydrogen (CASOH) process to decarbonise Blast Furnace Gases [1,2,3]. The work is carried out within the EU C4U project (https://c4u-project.eu/, [3]). The CASOH process relies on high-temperature solid looping reactions, carried out in a number of packed-bed reactors that continuously switch between three reaction stages. In a first stage (also called CASOH), there is carbonation of CaO by capture the CO2, including the CO2 formed by the catalysed Water Gas Shift of the CO contained in the BFG. In a second reaction stage, there is oxidation of the WGS Cu catalyst with air. In a third and final stage, there is the exothermic reduction of the CuO with a fuel gas, to drive the decomposition of CaCO3 and generate a concentrated CO2 gas stream while regenerating the CaO used in the first reaction stage. The CASOH TRL7 pilot has been designed to have a single reactor (with a thermally insulated bed of functional Ca and Cu materials of 5 m height and 0.5 m inner diameter), capable to alternate between all three reaction stages. The pilot will be operated at close to atmospheric pressure within the C4U project, but has enhanced capabilities to accommodate pressure swings of up to 10 bar in the future. It can treat 300 Nm3/h of BFG (about 0.3 MWth) from the AM industrial site and generate an equivalent amount of decarbonised N2/H2 rich-gas and up to 0.7 MWth of sensitive heat at high temperature in heat removal stages. First experimental results at TRL7 are expected by the end of 2022, but successful set of results have been obtained at smaller scale (TRL3-4) with the chosen functional materials (a commercial Cu-catalyst and a commercial limestone with adequate mechanical and chemical properties) and presented in other communications at GHGT16 [4,5]
Straight from the horse's mouth: Founders’ perspectives on achieving ‘traction’ in digital start-ups
No full textFactors that contributed to the success of 12 digital start-ups are explored from the perspective of their founders. Key insights were drawn from narrations of their start-up journeys, along with interviews, public documents, and existing theories on entrepreneurship. The result is a rich tapestry of combined experiences and wisdoms on human and social capital, organisational and developmental processes and the priorities necessary to achieve early success – or traction – in digital start-ups. The founders emphasised having a vision and purpose based on solving customer problems; values that prioritise their customers’ needs over their own; focusing on a limited range of activities while pursuing iterative product development; and developing a customer base with an emphasis on quality and user experience. Each founder was part of a cohesive founding team comprising complementary business and technical competencies that pursued continual learning. And each founder demonstrated a digital start-up mindset – an entrepreneurial attitude combined with a deep understanding of the scalable, open, born-global, generative nature of digital technologies. These insights we derived from our analysis have been combined into a proposition for the TrAction framework, which contains the elements necessary to set a trajectory and the actions for achieving early success in digital ventures. The study provides practical learnings and applications for entrepreneurs and theoretical advances for academics in this nascent field of research through empirical insights across multiple aspects of digital start-up performance
Effectiveness of peer teaching in medical education: medical student’s perspective
No full textFarhiya Omar, Maryam Zaheer, Muna AhmedFaculty of Medicine, St George’s Hospital Medical School, London, UKAs three clinical-year medical students in the United Kingdom, we were particularly intrigued by Elhassan’s1 research into a weekly educational activity called the “hospitalist huddle” in the United States. It explored the concept of peer teaching among doctors and its effectiveness. In this letter, we will discuss the usefulness of peer teaching for medical students as well as the different educational opportunities similar to the “hospitalist huddle” that exist in UK hospitals.Author's replyMohammed ElhassanDepartment of Internal Medicine, Division of Hospital Medicine, UCSF/Fresno Center for Medical Education and Research, Fresno, CA, USAI read with interest and joy the letter written by Omar, Zaheer, and Ahmed, all clinical-year medical students in the United Kingdom, regarding their experience with peer and near-peer teaching in their institution. It is a delight to learn that their experience with this medical education tool is positive and affirmative. This adds support to the notion that teaching with flat hierarchy is truly appealing for medial learners at different educational levels and within different clinical settings, not only in the US, but also in other similar medical education systems.View the original paper by Elhassa
Dr. Duane M. Jackson, Morehouse College, July 2011
No full textThis video is a conversation with Dr. Duane M. Jackson. Dr. Jackson talks about his paper, "Recall and the Serial Position Effect: The Role of Primacy and Recency on Accounting Students' Performance." Jackie Daniel, AUC Woodruff Library, is the interviewer
"Reflections on the subject of Emigration from Europe with a view to Settlement in the United States" By M. Carey.
No full text"Reflections on the subject of Emigration from Europe with a view to Settlement in the United States: containing bried sketches of the moral and political character of those states.
By M. Carey, member of the American philosophical, and of the American Antiquarian Society, and author of The Olive Branch, Cindiciae Hibernicae, essays on banking, on political economy, and on internal improvement.
To which are now added the English editor's comments on the subject; together with Important Advice to Emigrants, and Cautions Against Impositions Practiced in the Outports
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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