scholarly journals Corrigendum: 
Simple do-it-yourself experimental set-up for electron charge qe measurement 
(2018 Eur. J. Phys. 39 065202)

2021 ◽  
Author(s):  
Todor M Mishonov ◽  
Emil G. Petkov ◽  
Neli Zh. Mihailova ◽  
Aleksander A. Stefanov ◽  
Iglika M. Dimitrova ◽  
...  
Keyword(s):  
Electron Charge ◽  
Do It Yourself ◽  
Set Up

Abstract This is a correction for 2018 Eur. J. Phys. 39 065202.

scholarly journals Simple do-it-yourself experimental set-up for electron charge qe measurement

2018 ◽  
Vol 39 (6) ◽  
pp. 065202 ◽  
Author(s):  
T M Mishonov ◽  
E G Petkov ◽  
N Zh Mihailova ◽  
A A Stefanov ◽  
I M Dimitrova ◽  
...  
Keyword(s):  
Electron Charge ◽  
Do It Yourself ◽  
Set Up

Music Then and Now: Using Technology to Build a Lyric Animation Module

2019 ◽  
Vol 65 (2) ◽  
pp. 264-276 ◽  
Author(s):  
Wayne Geerling ◽  
G. Dirk Mateer ◽  
Brian O’Roark
Keyword(s):  
Student Group ◽  
Group Project ◽  
The Everyday ◽  
The Creation ◽  
Do It Yourself ◽  
Set Up ◽  
Jel Classifications

This article describes a student group project (Music for Econ) which synthesizes music with economics and is a great way to connect with your audience. We trace the journey of Music for Econ from its inception as a Pop-Up video in the early 2000s through to the creation of a Music for Econ library on Critical Commons. Music for Econ is a pedagogical device which can be used to demonstrate the everyday application of economics and help unlock student creativity. Consequently, we provide the instructor with a do it yourself (DIY) manual, which shows them how to set up the project, customize it depending on the size of their class, and how to avoid common pitfalls. We also include an end of project survey template for reference and future use in an appendix. More broadly, Music for Econ is simply fun to watch if you like music and enjoy leaning about economics. JEL Classifications: A20, A21, A22

scholarly journals Compromised Agency: The Case of BabyLegs

2017 ◽  
Vol 3 ◽  
pp. 499 ◽  
Author(s):  
Max Liboiron
Keyword(s):  
Intellectual Property ◽  
Gender Roles ◽  
Open Source ◽  
Power Relations ◽  
Ways Of Knowing ◽  
Monitoring Tool ◽  
Traditional Gender Roles ◽  
Asymmetrical Power ◽  
Do It Yourself ◽  
Set Up

The concept of agency is ubiquitous in STS, particularly regarding cases of alternative ways of knowing and doing science such as civic, citizen, and feminist sciences, among others. Yet the focus on agency often glosses over the constraints placed on agents, particularly within asymmetrical power relations. This article follows the case of BabyLegs, a do-it-yourself monitoring tool for marine microplastic pollution, and the attempt to keep the technology open source within an intellectual property (IP) system set up to privatize it. The tactics used to design BabyLegs as a feminine, silly, doll-tool to discredit the device in the eyes of an IP system that valued traditional gender roles lead to the eventual success of keeping the device open source. Yet, those same tactics also reinforced and reproduced the structures of power and essentialism they were designed to resist. I characterize this technological ambivalence as compromise, and argue that all agency exercised within asymmetrical power relations is compromised. This is not to say resistance is futile, but that agency is never pure, and this recognition lets us be more intentional in how we might compromise as practitioners of diverse scientific knowledges. 

Anaesthesia Equipment and Utilities

2020 ◽  
pp. 39-54
Author(s):  
Michael Dobson ◽  
Robert Neighbour ◽  
Matt Wilkes
Keyword(s):  
Medical Team ◽  
Practical Advice ◽  
Anaesthetic Practice ◽  
Anaesthetic Equipment ◽  
High Resource ◽  
Anaesthesia Equipment ◽  
Resource Poor ◽  
Adults And Children ◽  
Do It Yourself ◽  
Set Up

The chapter covers anaesthetic equipment that may not be familiar to anaesthetists practising in high-resource settings. Primarily this means draw-over anaesthesia equipment—recognition, set-up, usage in adults and children, and practical tips. How to maintain your equipment yourself so that it continues to function safely is covered. The chapter also considers the two basic utilities of anaesthetic practice that are often taken for granted in high-resource settings—oxygen and electricity—and how to cope with an unpredictable supply of both. Hygiene and sterilization, a responsibility that often falls to the medical team in resource-poor settings, is also covered with practical advice on how to do it yourself.

Hoger kunstonderwijs in vloeibare tijden? Do It Yourself!

Forum+ ◽  
2018 ◽  
Vol 25 (3) ◽  
pp. 14-20
Author(s):  
Guy Bovyn
Keyword(s):  
Learning Communities ◽  
Royal Academy ◽  
Fine Arts ◽  
Artistic Practice ◽  
Educational Project ◽  
Self Sufficiency ◽  
Do It Yourself ◽  
Set Up ◽  
Art Collectives ◽  
The Way

Begin 2019 wordt in de Koninklijke Academie voor Schone Kunsten een onderwijsvernieuwend project opgestart dat het traditionele ateliermodel kritisch moet bevragen. Geïnspireerd door de D.I.Y.-attitude van de historische punkbeweging worden een aantal kunstenaarscollectieven uitgenodigd om met de studenten en docenten horizontaal georganiseerde leergemeenschappen te vormen. Met dit initiatief wil de academie inzicht verwerven in de manier waarop een bijsturing van haar werking (1) kan bijdragen tot een verdere emancipatie van de student en (2) de autonomie en zelfredzaamheid van de jonge kunstenaar bij het uitbouwen en beoefenen van een artistieke praktijk kan versterken.An innovative educational project aimed at interrogating the traditional studio model is due to start in the Royal Academy for Fine Arts in early 2019. Inspired by the DIY ethos of the punk movement a number of art collectives were invited to set up learning communities together with students and teachers. The Academy hopes this initiative will give it insights into the way its functioning can a) contribute to the further emancipation of the student and b) foster the independence and self-sufficiency of the young artist when developing and carrying on an artistic practice.

The Effects of Drying Techniques on Clay-Rich Soil Texture

1974 ◽  
Vol 32 ◽  
pp. 466-467
Author(s):  
T. G. Naymik
Keyword(s):  
Critical Point ◽  
Liquid Nitrogen ◽  
Liquid Nitrogen Temperature ◽  
Drying Methods ◽  
Air Drying ◽  
Freeze Dried ◽  
Critical Point Drying ◽  
Set Up ◽  
The Relationship ◽  
Quartz Grains

Three techniques were incorporated for drying clay-rich specimens: air-drying, freeze-drying and critical point drying. In air-drying, the specimens were set out for several days to dry or were placed in an oven (80°F) for several hours. The freeze-dried specimens were frozen by immersion in liquid nitrogen or in isopentane at near liquid nitrogen temperature and then were immediately placed in the freeze-dry vacuum chamber. The critical point specimens were molded in agar immediately after sampling. When the agar had set up the dehydration series, water-alcohol-amyl acetate-CO2 was carried out. The objectives were to compare the fabric plasmas (clays and precipitates), fabricskeletons (quartz grains) and the relationship between them for each drying technique. The three drying methods are not only applicable to the study of treated soils, but can be incorporated into all SEM clay soil studies.

Evaluation of Freezing Methods by Low Temperature X-Ray Diffraction

1977 ◽  
Vol 35 ◽  
pp. 330-333
Author(s):  
T. Gulik-Krzywicki ◽  
M.J. Costello
Keyword(s):  
Biological Materials ◽  
Molecular Organization ◽  
X Ray Diffraction ◽  
Glass Capillary ◽  
X Ray ◽  
Rate Dependent ◽  
Before And After ◽  
Freeze Etching ◽  
Diffraction Patterns ◽  
Set Up

Freeze-etching electron microscopy is currently one of the best methods for studying molecular organization of biological materials. Its application, however, is still limited by our imprecise knowledge about the perturbations of the original organization which may occur during quenching and fracturing of the samples and during the replication of fractured surfaces. Although it is well known that the preservation of the molecular organization of biological materials is critically dependent on the rate of freezing of the samples, little information is presently available concerning the nature and the extent of freezing-rate dependent perturbations of the original organizations. In order to obtain this information, we have developed a method based on the comparison of x-ray diffraction patterns of samples before and after freezing, prior to fracturing and replication.Our experimental set-up is shown in Fig. 1. The sample to be quenched is placed on its holder which is then mounted on a small metal holder (O) fixed on a glass capillary (p), whose position is controlled by a micromanipulator.

Eels Under Standing Wave Conditions

1982 ◽  
Vol 40 ◽  
pp. 492-495
Author(s):  
O.L. Krivanek ◽  
J. TaftØ
Keyword(s):  
Standing Wave ◽  
Wave Conditions ◽  
Set Up ◽  
A Site ◽  
Complex Crystal

It is well known that a standing electron wavefield can be set up in a crystal such that its intensity peaks at the atomic sites or between the sites or in the case of more complex crystal, at one or another type of a site. The effect is usually referred to as channelling but this term is not entirely appropriate; by analogy with the more established particle channelling, electrons would have to be described as channelling either through the channels or through the channel walls, depending on the diffraction conditions.

Low-Loss Images in a Stem/Tem Microscope

1976 ◽  
Vol 34 ◽  
pp. 496-497 ◽  
Author(s):  
David C. Joy ◽  
Dennis M. Maher
Keyword(s):  
High Resolution ◽  
Surface Topography ◽  
Beam Direction ◽  
Low Loss ◽  
Specimen Holder ◽  
Glancing Angle ◽  
High Resolution Images ◽  
Set Up ◽  
Conventional Manner ◽  
Objective Type

High-resolution images of the surface topography of solid specimens can be obtained using the low-loss technique of Wells. If the specimen is placed inside a lens of the condenser/objective type, then it has been shown that the lens itself can be used to collect and filter the low-loss electrons. Since the probeforming lenses in TEM instruments fitted with scanning attachments are of this type, low-loss imaging should be possible.High-resolution, low-loss images have been obtained in a JEOL JEM 100B fitted with a scanning attachment and a thermal, fieldemission gun. No modifications were made to the instrument, but a wedge-shaped, specimen holder was made to fit the side-entry, goniometer stage. Thus the specimen is oriented initially at a glancing angle of about 30° to the beam direction. The instrument is set up in the conventional manner for STEM operation with all the lenses, including the projector, excited.

UHV-TEM studies of laser-induced damage

1991 ◽  
Vol 49 ◽  
pp. 632-633
Author(s):  
T.S. Savage ◽  
R. Ai ◽  
D. Dunn ◽  
L.D. Marks
Keyword(s):  
Surface Science ◽  
Rapid Heating ◽  
Local Heating ◽  
Routine Practice ◽  
Transmission Electron ◽  
Northwestern University ◽  
Laser Induced Damage ◽  
Set Up ◽  
Focusing Lens ◽  
Diffusion Of Impurities

The use of lasers for surface annealing, heating and/or damage has become a routine practice in the study of materials. Lasers have been closely looked at as an annealing technique for silicon and other semiconductors. They allow for local heating from a beam which can be focused and tuned to different wavelengths for specific tasks. Pulsed dye lasers allow for short, quick bursts which can allow the sample to be rapidly heated and quenched. This short, rapid heating period may be important for cases where diffusion of impurities or dopants may not be desirable.At Northwestern University, a Candela SLL - 250 pulsed dye laser, with a maximum power of 1 Joule/pulse over 350 - 400 nanoseconds, has been set up in conjunction with a Hitachi UHV-H9000 transmission electron microscope. The laser beam is introduced into the surface science chamber through a series of mirrors, a focusing lens and a six inch quartz window.

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