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The Slot-Die Coating of Self-Healing Dielectric Materials for the Next Generation of Smart Sensors.
No full textPrinted electronics (PEs) have attracted a lot of attention over the past decades. The ability to formulate inorganic or organic materials into functional inks with the capacity to be printed onto various substrates presents many advantages, including the capability to be stretchable and conformable, and the potential to be cheaper than current electronics. Therefore, PEs have an enormous promise for enabling novel technologies in a broad range of applications. In a short time, many major advances have been made in this field, including, through the synthesis of conductive polymers, preparation of materials with self-healing properties, and synthesis of stretchable conductors. This project focuses on the printing of a new self-healing dielectric material, previously developed in our group, on a polyethylene terephthalate (PET) substrate through slot-die coating. By paying special attention to environmental impact and compatibility for industrial production, the deposition of this new electroactive material was performed through the control of numerous variables to develop a robust and reliable procedure for the printing of future electronics. Each parameter was individually adjusted, and the resulting films were completely characterized using multiple techniques. This paper will focus on the importance of printed electronics for the development of new technologies, and results from an in-depth characterization will be presented. Moreover, the utilization of the self-healing dielectric materials in fully printed sensors will also be discussed
Assumption College Review: Vol. 2: no. 11 (1909: Nov.)
No full text54 numbered pagesTo view online at the Internet Archive: https://archive.org/details/assumptioncollegereview19091
Self-Destructing Polymers: Creating Thermally Sensitive End-Caps
Full text linkSelf-Destructing Polymers: Creating Thermally Sensitive End-Caps Trant Team Rose Anne Fayoumi A broad and booming field of research and innovation, polymer science blends chemistry, physics and engineering and breeds countless modern materials and devices. Likewise, the degradation of these polymers is a field of interest due to the consideration of environmental, medical and economical factors. Nowadays, conventional biodegradable polymers degrade, but require an enzyme to cleave every single connection between monomers before complete disintegration. Numerous stimulus events are thus necessary, promoting inefficient and slow environmental degradation that can take weeks to years. To address this, the Trant Team is developing a new class of polymers that self-destruct on-demand using organic chemistry. Only one stimulus event, removing the end, destabilizes the polymer, which leads it to quickly disintegrate in only a few hours. These self-immolative polymers hence need ends with a functionality that can be triggered, as the push required to initiate the domino-like effect. In our case, this push is an elevated temperature that causes the end-cap to destabilize and degrade. Elevated temperatures can be induced via intersecting laser beams or magnetic fields to create heat in desired areas. In addition, the optimal temperature for the degradation of each end-cap will be determined through kinetic studies. Ultimately, specific reversible chemical reactions will be exploited to create such thermally-sensitive end-caps, allowing on-demand degradation of the polymer's constituents by elevated temperatures. Accordingly, this innovation could potentially lead to endless possibilities and applications, including therapeutic, pharmaceutical, and biomedical applications. At this stage, however, it is too early to report findings as research and data collection are currently in progress. In spite of this, the presentation will review our preliminary results with this technology as well as shed light on its various potential applications
Escaping Regress: Conventionalism and Hale.
No full textConventionalism about logical necessity has, since Quine, been criticised for falling into a vicious regress. The conventionalist model involves a base class of directly stipulated necessary truths, and all other logical necessities are taken to follow from this base. The essentialist model described by Hale (in, amongst other places, his monograph Necessary Beings) is constructed in a broadly similar fashion: there is a class of those necessities which hold directly in virtue of the natures of things (objects, properties and the like), and other necessities are from this class derivative. Hale expresses a concern that the similarity of the two models might leave the essentialist position prey to a similar regress, but argues that such a situation will not arise. This should prompt a question: if the models are similar, could the solution not be also? In other words, can the conventionalist follow the essentialist to escape regress? This paper will offer a negative answer to this question. We will assume that Hale’s attempt to avert disaster for the essentialist was successful, but argue that the route taken by Hale is not open to the conventionalist, and that in attempting to take it the conventionalist fails to avoid regress. The paper will end with an attempt to generalise what we have seen to the conclusion that conventionalism about logical necessity cannot ever avoid regress.
Keywords: Modality, essentialism, conventionalism, regress, Hal
Mindfulness: A Systematic Review
Full text linkA systematic review of the mindfulness literature is conducted. A sample of 54 academic articles was created and an analysis of the empirical evidence on the effects of mindfulness on work-related outcomes and processes—such as employee performance, leadership, and ethical decision making—was conducted. The sample was analyzed to address four underlying issues in the literature: (1) the need for a complete definition of mindfulness, (2) the need for more developed theory, (3) the difficulties associated with operationalizing mindfulness, and (4) to identify gaps in the literature and areas for future research. We conclude that: (1) there may be different forms of mindfulness practice in organizations that impact varying aspects of organizational effectiveness and (2) the study and application of mindfulness in organizations offers promising directions; however, more research is needed to create a basis of evidence for successful mindfulness training programs. Further, a deeper understanding of the theories used to understand the mechanisms, consequences, and conditions of mindfulness would benefit organizational effectiveness
Immediate Feedback Assessment Technique (IF-AT) Testing in Undergraduate Political Science Education
No full textEmploying a poster format, student centered learning and learning centered teaching benefits of Immediate Feedback Assessment Technique (IF-AT) testing models will be showcased. Within University of Windsor undergraduate political science classes, as in all major disciplines and on college and university campuses elsewhere, multiple choice testing is a common form of student testing/assessment. While multiple choice testing holds an accepted place in academia, traditional multiple-choice testing has been found to be problematic and in some instances a contradiction to student learning. Research however reveals that IF-AT testing provides a learning centered teaching alternative that offers both the benefits of traditional multiple-choice testing without the negative aspects that can result from using such. This presentation aims to highlight how employing IF-AT testing methods can support instructors in creating courses that accommodate a student-centered learning perspective. An emphasis will be placed on showcasing and comparing the benefits and drawbacks of IF-AT testing relative to multiple choice testing techniques. Care will also be taken to detailing how the IF-AT model's answer-until-correct format leads to: higher reported clarity and ease of completing response requirements, concentration and logical thinking during testing, perceived fairness of and learning during testing and retention of learning, and reduced perceived potential for academic dishonesty to the benefit of post-secondary students and faculty. How IF-AT testing has been effectively employed within UofW political science courses on campus will also be described
Disagreement and Faith: Ockham on Faith as an Intellectual Virtue.
Full text linkAt the beginning of Chapter III, Book VI of the Nicomachean Ethics, Aristotle lists five intellectual virtues or veridical habits: art, scientific knowledge, prudence, intellectual intuition, and wisdom (1139b14–1139b19). The intellectual virtues are habitual powers of the mind to act that promote certainty and true belief, and Aristotle distinguishes them from opinion, in which “we may be mistaken” (1139b19). Unlike beliefs attributable to the veridical habits, which altogether exclude falsity and doubt, it is recognized even by those who hold them that opinions are less than certain, and that they could be either true or false. Regarding faith, however, it is unclear from Aristotle’s discussion in the Nicomachean Ethics whether it is opinion or veridical habit. Beliefs held on the basis of faith, such as my belief about who my parents are, have the unwavering certainty that mere opinions lack, yet they lack the evidence that would rule out error and make for knowledge. Should faith be considered an intellectual virtue or a species of opinion? Or, is faith a category unto itself? This paper examines a late-medieval debate about the position of faith in the framework of the veridical habits. William of Ockham (c. 1287–1347) makes faith an intellectual virtue on par with the other five. While we cannot have evident knowledge on the basis of faith in the way that we can through the other five veridical habits, beliefs held through faith are nevertheless certain and true. For this reason faith should be considered a veridical habit distinguishable from opinion. Ockham’s confrère and student, Adam Wodeham (c. 1298–1358), rejects faith as a veridical habit. If faith were a veridical habit, then an increase in degree should eliminate disagreement. But an equal increase in faith on both sides of a dispute does not reduce disagreement. If anything, it intensifies it. So faith cannot be a veridical habit. Several counter-arguments in support of Ockham’s position that stem from his epistemological externalism are also discussed, but I claim that in the final analysis Wodeham is correct. According to Ockham’s own epistemology and psychology faith cannot be an intellectual virtue
Disagreement and Faith: Ockham on Faith as an Intellectual Virtue.
Full text linkAt the beginning of Chapter III, Book VI of the Nicomachean Ethics, Aristotle lists five intellectual virtues or veridical habits: art, scientific knowledge, prudence, intellectual intuition, and wisdom (1139b14–1139b19). The intellectual virtues are habitual powers of the mind to act that promote certainty and true belief, and Aristotle distinguishes them from opinion, in which “we may be mistaken” (1139b19). Unlike beliefs attributable to the veridical habits, which altogether exclude falsity and doubt, it is recognized even by those who hold them that opinions are less than certain, and that they could be either true or false. Regarding faith, however, it is unclear from Aristotle’s discussion in the Nicomachean Ethics whether it is opinion or veridical habit. Beliefs held on the basis of faith, such as my belief about who my parents are, have the unwavering certainty that mere opinions lack, yet they lack the evidence that would rule out error and make for knowledge. Should faith be considered an intellectual virtue or a species of opinion? Or, is faith a category unto itself? This paper examines a late-medieval debate about the position of faith in the framework of the veridical habits. William of Ockham (c. 1287–1347) makes faith an intellectual virtue on par with the other five. While we cannot have evident knowledge on the basis of faith in the way that we can through the other five veridical habits, beliefs held through faith are nevertheless certain and true. For this reason faith should be considered a veridical habit distinguishable from opinion. Ockham’s confrère and student, Adam Wodeham (c. 1298–1358), rejects faith as a veridical habit. If faith were a veridical habit, then an increase in degree should eliminate disagreement. But an equal increase in faith on both sides of a dispute does not reduce disagreement. If anything, it intensifies it. So faith cannot be a veridical habit. Several counter-arguments in support of Ockham’s position that stem from his epistemological externalism are also discussed, but I claim that in the final analysis Wodeham is correct. According to Ockham’s own epistemology and psychology faith cannot be an intellectual virtue
Anomalies and Curiosities of Medicine
No full textWe posed the research question: can the physical connection, developed through the method of contact, strengthen the psychological relationship between two actors
Temporal Analysis of Conditions in the Great Lakes using Data from Buoys in Lake Erie
No full textHealthy Great LakesClimate change will have an impact on regional winds in Southern Ontario, which in turn will impact waves and currents in the Great Lakes. Additional impacts of these changes can include increased coastal erosion, degradation of nearshore ecology, damage to local fisheries and increased natural hazards such as heavy flooding and increased intensity of rip currents. Through analyses of wind speed and wind direction data from fourteen NOAA buoys in Lake Erie, average monthly northerly and easterly vector data was generated for each year a buoy had been in operation. The monthly vector data was transformed into charts to display the temporal patterns of the buoys in the lake. Temporal ranges of some of the buoys date back to 1980, providing long-term data to compare with conditions of today. The data in conjunction with spatial analysis tools such as GIS could give us insights into locations in the Lakes that are at highest risk for consequences of climate such as coastal erosion and flooding. The temporal data can also help us pinpoint times and areas of extreme events. This analysis can help inform what we may see in the future of climate change and provide a basis for policy decisions and protective actions along the Great Lakes and other large fresh water bodies in the world