scholarly journals Technology agnostic frequency characterization methodology for memristors

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Vasileios Manouras ◽  
Spyros Stathopoulos ◽  
Alex Serb ◽  
Themis Prodromakis
Keyword(s):  
Data Representation ◽  
Nyquist Plot ◽  
Physical Processes ◽  
Measuring Process ◽  
Characterization Methods ◽  
The Past ◽  
Starting Point ◽  
Measurement Protocol ◽  
Good Starting Point ◽  
Dc Characterization

AbstractOver the past decade, memristors have been extensively studied for a number of applications, almost exclusively with DC characterization techniques. Studies of memristors in AC circuits are sparse, with only a few examples found in the literature, and characterization methods with an AC input are also sparingly used. However, publications concerning the usage of memristors in this working regime are currently on the rise. Here we propose a "technology agnostic" methodology for memristor testing in certain frequency bands. A measurement process is initially proposed, with specific instructions on sample preparation, followed by an equipment calibration and measurement protocol. This article is structured in a way which aims to facilitate the usage of any available measurement equipment and it can be applied on any type of memristive technology. The second half of this work is centered around the representation of data received from following this process. Bode plot and Nyquist plot representations are considered and the information received from them is evaluated. Finally, examples of expected behaviors are given, characterizing simulated scenarios which represent different internal device models and different switching behaviors, such as capacitive or inductive switching. This study aims at providing a cohesive way for memristor characterization, to be used as a good starting point for frequency applications, and for understanding physical processes inside the devices, by streamlining the measuring process and providing a frame in which data representation and comparison will be facilitated.

Studying the Political Problems of French-speaking Tropical Africa in Paris

1962 ◽  
Vol 1 (01) ◽  
pp. 7-9
Author(s):  
J. Hymans
Keyword(s):  
The Political ◽  
Tropical Africa ◽  
Document Collections ◽  
The Past ◽  
Starting Point ◽  
French Speaking ◽  
Good Starting Point ◽  
Card Catalog

Among the principal Parisian libraries with African document collections are: (1) Library of the Institut d'Etudes Politiques, 27 Rue St. Guillaume, Paris VIeme (metro: St. Germain des Prés). These facilities are a good starting point for the foreign Africanist visiting Paris. Of particular interest are the “dossiers” of the “Centre de Documentation” (third floor of the library) where under various headings (such as “French relations with Africa”) one may find press clippings from about 100 of the major French newspapers and periodicals. The dossiers of clippings are kept up to date and extend back for several years. In the same third floor library there exists a special card catalog in which thousands of articles which have appeared in French periodicals for the past ten years are listed and briefly analyzed; there are several hundred cards dealing with French-speaking Africa. This special catalog is kept up to date and has trays devoted to each of the new African nations.

scholarly journals Editorial: Ireland’s Online Learning Call

2021 ◽  
Vol 5 (1) ◽  
pp. 1-6
Author(s):  
Fiona Concannon ◽  
Tom Farrelly ◽  
Eamon Costello ◽  
Steve Welsh
Keyword(s):  
Critical Incident ◽  
Teaching And Learning ◽  
Technology Enhanced Learning ◽  
The Past ◽  
Online Mode ◽  
Starting Point ◽  
Good Starting Point ◽  
Enhanced Learning ◽  
Rapid Shift

The editorial board of the Irish Journal of Technology Enhanced Learning (IJTEL) would like to use this opportunity to thank each and every one of you working through a very challenging time over the past twelve months of the pandemic. It is a significant event, a critical incident, that will take some time to document and reflect upon in future journal editions.  So many words have already been written about this past year that try to capture the disruption and change. However, to summarise even a scintilla of what has happened across Irish higher education is a slightly daunting prospect. We have seen various terms used to describe the rapid shift to teaching and learning online, such as milestone, pivot, emergency remote teaching. None of these fully encompass the myriad of ways that those of us working in education have had to become resilient, responsive and supportive of colleagues during this period.  Considering the response from members of the educational technology community within Ireland, one could argue that the term overwhelming is a good starting point. For a start, a tsunami of work ensued, that at times threatened to engulf individuals.  Education ‘pivoted’ from a position where online was generally a supplementary or complementary activity to one where in an online mode, we became the campus. Systems and processes were hastily altered, modified or expanded far beyond anybody’s expectations. While some of those have creaked and groaned, we have managed to teach classes, run meetings and carry out assessments; run on-campus labs and social distanced teaching; in short, we have kept going. People have been inventive, innovative and extremely hard working. But above all else, they have been generous; generous with their time, their expertise and generous in spirit. 

Consent for treatment in mental handicap hospitals in Scotland

1992 ◽  
Vol 16 (5) ◽  
pp. 266-267
Author(s):  
Steven C. Young
Keyword(s):  
Handicapped Person ◽  
Mentally Handicapped ◽  
Consent Forms ◽  
Mental Handicap ◽  
The Past ◽  
Consent Procedure ◽  
Starting Point ◽  
Good Starting Point ◽  
Handicapped People ◽  
Do So

Consent for operation/treatment of a mentally handicapped person has been an issue stimulating much discussion. Generally, in the past, relatives or consultants responsible for their care have given ‘consent’ for treatment when mentally handicapped people were unable to do so. It was appreciated that legally this was not valid once the person was over the age of 16 and so we felt that the ‘consent’ procedure operating at our hospital should be reviewed. We were unsure of the practices in other areas, apart from Lothian Area where we knew new ‘consent’ forms had been devised, and felt that a good starting point would be to contact mental handicap hospitals in Scotland to gather information regarding the present ‘consent’ practices overall.

Holism, Chinese Medicine and Systems Ideologies: Rewriting the Past to Imagine the Future

2018 ◽  
Author(s):  
Volker Scheid
Keyword(s):  
Eighteenth Century ◽  
Chinese Medicine ◽  
Medical Humanities ◽  
Science And Technology Studies ◽  
Human Beings ◽  
The Past ◽  
Starting Point ◽  
The Us ◽  
Shared Objective ◽  
Definition Of

This chapter explores the articulations that have emerged over the last half century between various types of holism, Chinese medicine and systems biology. Given the discipline’s historical attachments to a definition of ‘medicine’ that rather narrowly refers to biomedicine as developed in Europe and the US from the eighteenth century onwards, the medical humanities are not the most obvious starting point for such an inquiry. At the same time, they do offer one advantage over neighbouring disciplines like medical history, anthropology or science and technology studies for someone like myself, a clinician as well as a historian and anthropologist: their strong commitment to the objective of facilitating better medical practice. This promise furthermore links to the wider project of critique, which, in Max Horkheimer’s definition of the term, aims at change and emancipation in order ‘to liberate human beings from the circumstances that enslave them’. If we take the critical medical humanities as explicitly affirming this shared objective and responsibility, extending the discipline’s traditional gaze is not a burden but becomes, in fact, an obligation.

Cyber Peacekeeping: Critical Evaluation of Digital Blue Helmets Program

2020 ◽  
pp. 17-27
Author(s):  
Fahad Nabeel
Keyword(s):  
United Nations ◽  
Critical Evaluation ◽  
Threat Detection ◽  
Information And Communications Technologies ◽  
The Past ◽  
Research Article ◽  
Un Peacekeeping ◽  
Starting Point ◽  
Communications Technologies ◽  
Future Potential

In 2016, the United Nations (UN) launched the Digital Blue Helmets (DBH) program under its Office of Information and Communications Technologies (OICT). The launching of DBH was a continuation of a series of steps that the UN and its related agencies and departments have undertaken over the past decade to incorporate cyberspace within their working methodologies. At the time of inception, DBH was envisioned as a team capacitated to act as a replica of a physical peacekeeping force but for the sole purpose of overseeing cyberspace(s). Several research studies have been published in the past few years, which have conceptualized cyber peacekeeping in various ways. Some scholars have mentioned DBH as a starting point of cyber peacekeeping while some have proposed models for integration of cyber peacekeeping within the current UN peacekeeping architecture. However, no significant study has attempted to look at how DBH has evolved since its inception. This research article aims to examine the progress of DBH since its formation. It argues that despite four years since its formation, DBH is still far away from materializing its declared objectives. The article also discusses the future potential roles of DBH, including its collaboration with UN Global Pulse for cyber threat detection and prevention, and embedding the team along with physical peacekeepers.

scholarly journals Discovery and Optimization of Selective Inhibitors of Meprin α (Part I)

2021 ◽  
Vol 14 (3) ◽  
pp. 203 ◽  
Author(s):  
Shurong Hou ◽  
Juan Diez ◽  
Chao Wang ◽  
Christoph Becker-Pauly ◽  
Gregg B. Fields ◽  
...  
Keyword(s):  
Inhibitory Activity ◽  
De Novo ◽  
Selective Inhibitors ◽  
Preclinical Development ◽  
Starting Point ◽  
Good Starting Point ◽  
Parallel Screening ◽  
Low Cytotoxicity

Meprin α and β are zinc-dependent proteinases implicated in multiple diseases including cancers, fibrosis, and Alzheimer’s. However, until recently, only a few inhibitors of either meprin were reported and no inhibitors are in preclinical development. Moreover, inhibitors of other metzincins developed in previous years are not effective in inhibiting meprins suggesting the need for de novo discovery effort. To address the paucity of tractable meprin inhibitors we developed ultrahigh-throughput assays and conducted parallel screening of >650,000 compounds against each meprin. As a result of this effort, we identified five selective meprin α hits belonging to three different chemotypes (triazole-hydroxyacetamides, sulfonamide-hydroxypropanamides, and phenoxy-hydroxyacetamides). These hits demonstrated a nanomolar to micromolar inhibitory activity against meprin α with low cytotoxicity and >30-fold selectivity against meprin β and other related metzincincs. These selective inhibitors of meprin α provide a good starting point for further optimization.

‘I AM’: Indigenous consciousness for authenticity and leadership

Leadership ◽  
2021 ◽  
pp. 174271502199959
Author(s):  
Chellie Spiller
Keyword(s):  
True Self ◽  
The Past ◽  
Starting Point ◽  
The Future

This article encourages a move away from the excessively inward gaze of ‘to thine own self be true’ and explores ‘I AM’ consciousness as a starting point. An I AM approach encourages a move from the measurable self to the immeasurable expansiveness and mystery of our own becoming. It is to step beyond the lines drawn around the ‘true self’ or the lines that others would have us draw. I AM consciousness reflects an ancient Indigenous thread that echoes through millennia and reminds humans that we are a movement through time, and each person is a present link to the past and the future, woven into a fabric of belonging.

scholarly journals Advances on the Implementation of Circular Economy Techniques in Rural Areas in Colombia under a Sustainable Development Framework

2021 ◽  
Vol 13 (7) ◽  
pp. 3816
Author(s):  
Javier Rodrigo-Ilarri ◽  
Camilo-A. Vargas-Terranova ◽  
María-Elena Rodrigo-Clavero ◽  
Paula-A. Bustos-Castro
Keyword(s):  
Sustainable Development ◽  
Waste Management ◽  
Circular Economy ◽  
Rural Areas ◽  
Development Framework ◽  
Starting Point ◽  
Management Plans ◽  
Good Starting Point ◽  
Depressed Regions ◽  
First Time

For the first time in the scientific literature, this research shows an analysis of the implementation of circular economy techniques under sustainable development framework in six municipalities with a depressed economy in Colombia. The analysis is based on solid waste data production at a local scale, the valuation of the waste for subsequent recycling, and the identification and quantification of the variables associated with the treatment and final disposal of waste, in accordance with the Colombian regulatory framework. Waste generation data are obtained considering three different scenarios, in which a comparison between the simulated values and those established in the management plans are compared. Important differences have been identified between the waste management programs of each municipality, specifically regarding the components of waste collection, transportation and disposal, participation of environmental reclaimers, and potential use of materials. These differences are fundamentally associated with the different administrative processes considered for each individual municipality. This research is a good starting point for the development of waste management models based on circular economy techniques, through the subsequent implementation of an office tool in depressed regions such as those studied.

Industry-Sponsored Medical Education — In the Quest for Professional Integrity and Legal Certainty

2007 ◽  
Vol 14 (4) ◽  
pp. 313-319
Author(s):  
Benedikt Buchner
Keyword(s):  
Medical Education ◽  
Self Regulation ◽  
State Regulation ◽  
General Question ◽  
Legal Certainty ◽  
European Directive ◽  
Starting Point ◽  
Good Starting Point ◽  
Advertising Law ◽  
The Right

AbstractIndustry-sponsored medical education is a much disputed issue. So far, there has been no regulatory framework which provides clear and definite rules as to whether and under what circumstances the sponsorship of medical education is acceptable. State regulation does not exist, or confines itself to a very general principle. Professional regulation, even though applied frequently, is rather vague and indefinite, raising the general question as to whether self-regulation is the right approach at all. Certainly, self-regulation by industry cannot and should not replace other regulatory approaches. Ultimately, advertising law in general and the European Directive 2001/83/EC specifically, might be a good starting point in providing legal certainty and ensuring the independence of medical education. Swiss advertising law illustrates how the principles of the European Directive could be implemented clearly and unambiguously.

scholarly journals Quality and Operations Management in Food Supply Chains: A Literature Review

2018 ◽  
Vol 2018 ◽  
pp. 1-14 ◽  
Author(s):  
Yong He ◽  
Hongfu Huang ◽  
Dong Li ◽  
Chunming Shi ◽  
Sarah J. Wu
Keyword(s):  
Literature Review ◽  
Supply Chains ◽  
Operations Research ◽  
Operations Management ◽  
Food Supply ◽  
Research Field ◽  
Food Supply Chains ◽  
The Past ◽  
Starting Point

We present a literature review on quality and operations management problems in food supply chains. In food industry, the quality of the food products declines over time and should be addressed in the supply chain operations management. Managing food supply chains with operations management methods not only generates economic benefit, but also contributes to environmental and social benefits. The literature on this topic has been burgeoning in the past few years. Since 2005, more than 100 articles have been published on this topic in major operations research and management science journals. In this literature review, we concentrate on the quantitative models in this research field and classify the related articles into four categories, that is, storage problems, distribution problems, marketing problems, and food traceability and safety problems. We hope that this review serves as a reference for interested researchers and a starting point for those who wish to explore it further.

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