48 research outputs found
Reference Management Software: Comparative Analysis of RefWorks and Zotero
No full textThis paper presents a comparison of reference
management software between RefWorks and Zotero. The results
were drawn by comparing two software and the novelty of this paper
is the comparative analysis of software and it has shown that
ReftWorks can import more information from the Google Scholar for
the researchers. This finding could help to know researchers to use
the reference management software
A Framework on the Critical Success Factors of E-Learning Implementation in Higher Education: A Review of the Literature
No full textThis paper presents a conceptual framework on the critical success factors of e-learning implementation in higher education, derived from an in-depth survey of literature review. The aim of this study was achieved by identifying critical success factors that affect for the successful implementation of e-learning. The findings help to articulate issues that are related to e-learning implementation in both formal and non-formal higher education and in this way contribute to the development of programs designed to address the relevant issues
EMPIRICAL EXAMINATION OF EXTENDING THE TECHNOLOGY ACCEPTANCE MODEL TO CONSUMER E-COMMERCE
No full textFeasibility Study of Alginate Polymer Electrolytes through Molecular Dynamics Simulations
No full textLarge scale stationary energy storage is becoming the need of the hour as the world transitions to a renewable economy. For this, there is a necessity of higher energy density batteries that can cope well both in storing excess energy and minimizing fluctuations on the grid. Solid polymer electrolyte batteries can be extremely safe and reduce packaging while also preventing dendrite formation in Lithium-ion batteries.Sodium ion movement is seen from one oxygen atom to another for an arbitrary Na+ ion. This thesis shows that MD simulations can be a promising method to study the mechanisms involved in alginate polymer electrolytes. Further work is necessary to enable rigorous analysis by incorporating both mannuronates and guluronates. Neutron Magnetic Resonance (NMR) can be carried out to validate the results obtained through MD simulations.MD simulations on sodium alginate (primarily of guluronate) as a solid polymer electrolyte appear to indicate the interaction of Na+ ion with O2 atom of the polyguluronate residue is in preference to interaction of Na+ ion with carboxylate oxygen atoms. Diffusion constant of Na+ ion is seen to drop in MD simulations with increase in Ca2+ ion concentrations both at temperatures 300 K and 373 K
Application of Pulse Calorimetry to Metal Systems
No full textThe pulse calorimeter developed as a part of the author\u27s masters thesis was used extensively in the doctoral research to determine the electrical resistivity and specific heat of Ni, Ni4Mo, Fe-A1 alloys and Ni-A1. The temperature range of measurements varied with different specimens but in general were between 375 K to 1300 K.
The pulse calorimeter essentially consists of a specimen in series with a standard resistor and a programmable power supply. The specimen is inside a vacuum chamber. The programmable power supply can be triggered from the computer to send a specific current to the specimen for a specific time. As the specimen heats, its temperature rises. Three signals - current, voltage and temperature (thermoelectric voltage) are acquired into the computer program to be processed later to determine the specific heat and electrical resistivity as functions of temperature. The specimen is allowed to cool from a high temperature and the temperature-time data are acquired as a function of time. This cooling data are used later to correct for the heat losses during heating.
A knife-edge apparatus was designed to determine the separation distance between the voltage taps on a specimen. This apparatus was also used to determine the room temperature electrical resistivity of specimens.
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Sorting live stem cells based on Sox2 mRNA expression.
No full textPMCID: PMC3507951This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.While cell sorting usually relies on cell-surface protein markers, molecular beacons (MBs) offer the potential to sort cells based on the presence of any expressed mRNA and in principle could be extremely useful to sort rare cell populations from primary isolates. We show here how stem cells can be purified from mixed cell populations by sorting based on MBs. Specifically, we designed molecular beacons targeting Sox2, a well-known stem cell marker for murine embryonic (mES) and neural stem cells (NSC). One of our designed molecular beacons displayed an increase in fluorescence compared to a nonspecific molecular beacon both in vitro and in vivo when tested in mES and NSCs. We sorted Sox2-MB(+)SSEA1(+) cells from a mixed population of 4-day retinoic acid-treated mES cells and effectively isolated live undifferentiated stem cells. Additionally, Sox2-MB(+) cells isolated from primary mouse brains were sorted and generated neurospheres with higher efficiency than Sox2-MB(-) cells. These results demonstrate the utility of MBs for stem cell sorting in an mRNA-specific manner
Cheap talk? Strategy presentations as a form of chief executive officer impression management
No full textResearch summary: We develop and test a set of hypotheses on investors' reactions to a specific form of impression management, public presentations of overall strategy by Chief Executive Officers (CEOs). Contrary to expectations from a “cheap talk” perspective, we suggest that such strategy presentations convey valuable information to investors, especially in conditions of heightened information asymmetry associated with varying types of new CEOs. Broad empirical support for our theoretical arguments is shown in a sample of strategy presentations carried out by NYSE and NASDAQ listed organizations over 10 years. Our research contributes to literature on new CEOs and impression management. We draw out implications both for management and for further research. Managerial summary: We examine the impact of public presentations on company strategy by Chief Executive Officers (CEOs) on company stock prices. Adjusting for market movements in general, on average stock prices rose by 1.6 percent following these strategy presentations. Strategy presentations received larger reactions the more the CEO was unfamiliar to investors. Thus, stock price gains for new CEOs in general were 5.3 percent; for external, within‐industry new CEOs, they were 9.3 percent; and for external, outside‐of‐industry new CEOs, they were 12.4 percent. Given that only 40 percent of new CEOs present on strategy in their first 200 days post‐appointment, we suggest that new CEOs pay more attention to this potential means of communicating, especially if they are unfamiliar to investors
Inkjet printing of flexible, stretchable and transparent resistance based sensor using innovative and low curing inkjet inks
No full textDrop-On-Demand inkjet printing is a fully digitized technology that can print conductive layers on a heat sensitive substrate. We develop a PEDOT:PSS ink that can be used as a resistor ink. Additionally, we develop metal organic decomposition (MOD) based silver (Ag) ink that can be used to print conductive pads. Both of these inks have comparable sinter temperatures of 60 to 70 degree Celsius.The author would like to thank the financial contribution from the SIM Soppom+ program and the support from BOF (Bijzonder Onderzoeks Fonds) of Hasselt University
