scholarly journals An evaluation of the Kemtek 1000 sample processor

1988 ◽  
Vol 10 (1) ◽  
pp. 37-42 ◽  
Author(s):  
M. J. Wheeler ◽  
Linzi Waiters
Keyword(s):  
Probe System ◽  
Carry Over ◽  
Set Up ◽  
Accuracy Speed ◽  
Better Than ◽  
The Way

The Kemtek 1000 Sample Processor has been evaluated for precision, accuracy, speed and reliability. Precision was better than 1.0% at all volumes tested and accuracy within ±5%. A l00-tube assay could be set up within 15 min when patient specimens plus two reagents were sampled using a two probe system. Carry-over could be reduced to <0.01% by using a sufficient number of wash steps, the latter being related to the assay requirements. Evidence was found for adsorption of protein to the probe tubing but inaccuracies due to this could be reduced by introducing wash steps between samples. Problems over 12 months have been minor and quickly resolved. The authors were pleased with the way the processor performed and their staffhave confidence in leaving it to set up their assays.

Teacher digital competence: bringing education to the next level

2020 ◽  
Vol 11 (1) ◽  
pp. 22-26
Author(s):  
S.V. Tsymbal ◽  
Keyword(s):  
Deep Learning ◽  
Learning Experiences ◽  
Digital Competence ◽  
Digital Revolution ◽  
Access Information ◽  
Set Up ◽  
Insight Into ◽  
The Way

The digital revolution has transformed the way people access information, communicate and learn. It is teachers' responsibility to set up environments and opportunities for deep learning experiences that can uncover and boost learners’ capacities. Twentyfirst century competences can be seen as necessary to navigate contemporary and future life, shaped by technology that changes workplaces and lifestyles. This study explores the concept of digital competence and provide insight into the European Framework for the Digital Competence of Educators.

Determination of trace concentrations of copper by FIA-FAAS after preconcentration on chelating sorbents

1989 ◽  
Vol 54 (7) ◽  
pp. 1785-1794 ◽  
Author(s):  
Vlastimil Kubáň ◽  
Josef Komárek ◽  
Zbyněk Zdráhal
Keyword(s):  
Sampling Frequency ◽  
Copper Determination ◽  
Flow Rates ◽  
Sample Injection ◽  
Injection Flow ◽  
Chelating Sorbents ◽  
Set Up ◽  
Trace Concentrations ◽  
Better Than

A FIA-FAAS apparatus containing a six-channel sorption equipment with five 3 x 26 mm microcolumns packed with Spheron Oxin 1 000, Ostsorb Oxin and Ostsorb DTTA was set up. Combined with sorption from 0.002M acetate buffer at pH 4.2 and desorption with 2M-HCl, copper can be determined at concentrations up to 100, 150 and 200 μg l-1, respectively. For sample and eluent flow rates of 5.0 and 4.0 ml min-1, respectively, and a sample injection time of 5 min, the limit of copper determination is LQ = 0.3 μg l-1, repeatability sr is better than 2% and recovery is R = 100 ± 2%. The enrichment factor is on the order of 102 and is a linear function of time (volume) of sample injection up to 5 min and of the sample injection flow rate up to 11 ml min-1 for Spheron Oxin 1 000 and Ostsorb DTTA. For times of sorption of 60 and 300 s, the sampling frequency is 70 and 35 samples/h, respectively. The parameters of the FIA-FAAS determination (acetylene-air flame) are comparable to or better than those achieved by ETA AAS. The method was applied to the determination of traces of copper in high-purity water.

scholarly journals Civil Religion or Nationalism? The National Day Celebrations in Norway

Religions ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 206
Author(s):  
Pål Ketil Botvar
Keyword(s):  
National Identity ◽  
General Population ◽  
Civil Religion ◽  
Religious Nationalism ◽  
Theoretical Concepts ◽  
Role Of Religion ◽  
Better Than ◽  
The Way

The Norwegian National Day (17 May, also referred to as Constitution Day) stands out as one of the most popular National Day celebrations in Europe. According to surveys, around seven out of every 10 Norwegians take part in a public celebration during this day. This means that the National Day potentially has an impact on the way people reflect upon national identity and its relationship to the Lutheran heritage. In this paper, I will focus on the role religion plays in the Norwegian National Day rituals. Researchers have described these rituals as both containing a significant religious element and being rather secularized. In this article, I discuss the extent to which the theoretical concepts civil religion and religious nationalism can help us understand the role of religion, or the absence of religion, in these rituals. Based on surveys of the general population, I analyze both indicators of civil religion and religious nationalism. The two phenomena are compared by looking at their relation to such items as patriotism, chauvinism, and xenophobia. The results show that civil religion explains participation in the National Day rituals better than religious nationalism.

Historic city, tourism performance and development: The balance of social behaviours in the city of Santiago de Compostela (Spain)

2016 ◽  
Vol 16 (3) ◽  
pp. 282-293 ◽  
Author(s):  
Belén Mª Castro Fernández ◽  
Rubén Camilo Lois González ◽  
Lucrezia Lopez
Keyword(s):  
Numerical Data ◽  
City Centre ◽  
City Development ◽  
Santiago De Compostela ◽  
Final Destination ◽  
City Tourism ◽  
Set Up ◽  
Historic City ◽  
The City ◽  
The Way

Santiago de Compostela is an iconic place. From the 9th century through to the present day the city has acted as the final destination of a major pilgrimage route named after it. In the article we ask ourselves how the contemporary reinvention of the pilgrimage and pilgrimages on the Way of St. James has boosted tourism development in the city. Development has been concentrated in the historic city centre and in the area around the cathedral. The importance of tourism has transformed the significance of the city itself, which acquires a magical component as a place of arrival and encounter for all kinds of visitors. The historic city has been set up in the 20th century as a destination for the Way and for cultural tourism. The buildings, particularly those connected with the pilgrimage route, become highly attractive and symbolic places and tourists carry out a number of rituals in them. They travel and enjoy Santiago as a unique experience. The study of tourism and of the tourist transformation of Santiago de Compostela is undertaken using a qualitative and quantitative method. The article analyses the heritage and symbolic value of the historic centre, together with the growth of its tourism activities. Numerical data are also provided on the perceptions and behaviour of visitors using surveys carried out by the city's Tourism Observatory.

scholarly journals Towards the very nature of career, career guidance and counselling

2005 ◽  
Vol 31 (3) ◽  
Author(s):  
C W T Joubert ◽  
F Crous
Keyword(s):  
Career Guidance ◽  
The World ◽  
Set Up ◽  
The Way

The literature on career calls for a transformation and redefinition of career. In this paper we take a step back and ask: ‘what is a career?’. Careers as works are presented; those entities that set up and formed the world in which humans live and have their being. In describing the characteristics of works and the way in which they set up and formed a world, we explicate the very nature of career guidance and counselling. In conclusion, we propose an approach by which practitioners can engage the world that is set up by a work. Opsomming Die literatuur betreffende loopbaan vra vir ’n tranformasie en herdefinisie daarvan. In hierdie artikel neem ons ’n stap terug met die vraag: "Wat is ’n loopbaan?" Loopbane as werke word voorgehou; daardie entiteite wat gestalte gee aan en die wêreld konfigureer waarin menswees uitgeleef word. Deur die eienskappe van werke en die manier waarop hulle ’n wêreld konfigureer en vorm, voor te hou, verduidelik ons die werklike aard van loopbaanleiding en -voorligting. Ter sluiting stel ons ’n benadering voor waarvolgens praktisyns hulle kan besig hou met die wêreld wat deur ‘n werk tot stand gebring word.

scholarly journals How can expert knowledge increase the realism of conceptual hydrological models? A case study based on the concept of dominant runoff process in the Swiss Pre-Alps

2018 ◽  
Vol 22 (8) ◽  
pp. 4425-4447 ◽  
Author(s):  
Manuel Antonetti ◽  
Massimiliano Zappa
Keyword(s):  
Spatial Distribution ◽  
Expert Knowledge ◽  
Hydrological Models ◽  
Top Down ◽  
Bottom Up ◽  
Process Maps ◽  
Uncertainty Sources ◽  
Simulation Results ◽  
Set Up ◽  
Better Than

Abstract. Both modellers and experimentalists agree that using expert knowledge can improve the realism of conceptual hydrological models. However, their use of expert knowledge differs for each step in the modelling procedure, which involves hydrologically mapping the dominant runoff processes (DRPs) occurring on a given catchment, parameterising these processes within a model, and allocating its parameters. Modellers generally use very simplified mapping approaches, applying their knowledge in constraining the model by defining parameter and process relational rules. In contrast, experimentalists usually prefer to invest all their detailed and qualitative knowledge about processes in obtaining as realistic spatial distribution of DRPs as possible, and in defining narrow value ranges for each model parameter.Runoff simulations are affected by equifinality and numerous other uncertainty sources, which challenge the assumption that the more expert knowledge is used, the better will be the results obtained. To test for the extent to which expert knowledge can improve simulation results under uncertainty, we therefore applied a total of 60 modelling chain combinations forced by five rainfall datasets of increasing accuracy to four nested catchments in the Swiss Pre-Alps. These datasets include hourly precipitation data from automatic stations interpolated with Thiessen polygons and with the inverse distance weighting (IDW) method, as well as different spatial aggregations of Combiprecip, a combination between ground measurements and radar quantitative estimations of precipitation. To map the spatial distribution of the DRPs, three mapping approaches with different levels of involvement of expert knowledge were used to derive so-called process maps. Finally, both a typical modellers' top-down set-up relying on parameter and process constraints and an experimentalists' set-up based on bottom-up thinking and on field expertise were implemented using a newly developed process-based runoff generation module (RGM-PRO). To quantify the uncertainty originating from forcing data, process maps, model parameterisation, and parameter allocation strategy, an analysis of variance (ANOVA) was performed.The simulation results showed that (i) the modelling chains based on the most complex process maps performed slightly better than those based on less expert knowledge; (ii) the bottom-up set-up performed better than the top-down one when simulating short-duration events, but similarly to the top-down set-up when simulating long-duration events; (iii) the differences in performance arising from the different forcing data were due to compensation effects; and (iv) the bottom-up set-up can help identify uncertainty sources, but is prone to overconfidence problems, whereas the top-down set-up seems to accommodate uncertainties in the input data best. Overall, modellers' and experimentalists' concept of model realism differ. This means that the level of detail a model should have to accurately reproduce the DRPs expected must be agreed in advance.

scholarly journals No news is better than evil news. Clearing up the way to face Alternative Archaeologies

2016 ◽  
Vol 2 ◽  
pp. 122
Author(s):  
Jaime Almansa Sánchez
Keyword(s):  
Everyday Life ◽  
Public Archaeology ◽  
The Political ◽  
The Public ◽  
Professional Discipline ◽  
The Past ◽  
Political Interpretation ◽  
Better Than ◽  
The Way

While Archaeology started to take form as a professional discipline, Alternative Archaeologies grew in several ways. As the years went by, the image of Archaeology started being corrupted by misconceptions and a lot of imagination, and those professionals that were claiming to be scientists forgot one of their first responsibilities; the public. This lack of interest is one of the reasons why today, a vast majority of society believes in many clichés of the past that alternative archaeologists have used to build a fictitious History that is not innocent at all. From UFOs and the mysteries of great civilizations to the political interpretation of the past, the dangers of Alternative Archaeologies are clear and under our responsibility. This paper analyzes this situation in order to propose a strategy that may make us the main characters of the popular imagery in the mid-term. Since confrontation and communication do not seem to be effective approaches, we need a change in the paradigm based on Public Archaeology and the increase of our presence in everyday life.

scholarly journals Enhancement the stability of power system using optimal location of FACTS devices

2020 ◽  
Vol 18 (2) ◽  
pp. 648
Author(s):  
Ali Najim Abdullah ◽  
Ahmed Majeed Ghadhban ◽  
Hayder Salim Hameed ◽  
Husham Idan Hussein
Keyword(s):  
Power Network ◽  
Performance Factors ◽  
Facts Devices ◽  
Clearing Time ◽  
Thyristor Controlled Series Capacitor ◽  
Overall Performance ◽  
Set Up ◽  
The Stability ◽  
And Control ◽  
Better Than

<p><span>This paper proposes a steady-state of the Static Var Compensator (SVC) &amp; Thyristor Controlled Series Capacitor (TCSC) set up for enhancing the damping overall performance and growing the integral clearing time (CCT) of a power network. The indispensable clearing time is carried out through increasing the time fault interval until the gadget loses stability. Increasing the CCT can be contribute to reliability of the safety gadget, decrease the protection machine ranking and cost. In order to attain most enhancement of machine stability via optimizing location, sizing and control modes of SVC and TCSC. Models and methodology for putting and designing shunt FACT’s units SVC (injected reactive strength Q) and series FACT’s devices TCSC (chose capacitive region) are examined in a 6-bus system. Performance factors are described to show validation of SVC and TCSC on extraordinary conditions. It is proven that the SVC is better than TCSC. </span></p>

scholarly journals THE SCORPIONS LOSE THEIR STING: Challenges to incorporation of the DSO into the SAPS

2016 ◽  
Author(s):  
Anthony Minnaar
Keyword(s):  
South African ◽  
New South ◽  
Modus Operandi ◽  
Special Operations ◽  
South African Police Service ◽  
Direct Contrast ◽  
South African Police ◽  
Effective Use ◽  
Better Than ◽  
The Way

While it would appear that the motivations to incorporate the Directorate of Special Operations (DSO) or Scorpions into a new South African Police Service directorate are largely politically driven, there are a number of practical obstacles standing in the way of a ‘smooth’ incorporation. Foremost among these is the manner of operations of the Scorpions, the way that they investigate certain crimes by means of prosecution-led teams, and their more effective use of intelligence-driven crime information. This is diametrically opposed to the SAPS investigation modus operandi, which is largely reactive. Furthermore, many of the Scorpions investigators, representing as they do a vast pool of built up experience and expertise, do not want to serve in the SAPS under the latter’s investigating regime. Other sticking points would be the fact that they are paid infinitely better than SAPS detectives, are better funded and resourced, have a far lighter case load (and one shared in a team) – all in direct contrast to members of the SAPS.

scholarly journals Controlling and the Use of UAVs as Important Components of Smart Logistical Operations

2021 ◽  
Vol 12 (1) ◽  
pp. 192-203
Author(s):  
Martin Holubčík ◽  
Jakub Soviar
Keyword(s):  
Decision Making ◽  
Internal State ◽  
Good Decision ◽  
Interdisciplinary Field ◽  
Different Types ◽  
Way Of Thinking ◽  
Set Up ◽  
Controlling Measures ◽  
A Company ◽  
The Way

Abstract Modern controlling is an interdisciplinary field that allows management to manage properly, thereby creating the basis for good decision-making. Logistics operations in smart companies need to be not only properly set up, but also properly controlled and improved. The purpose of the article is to analyze the controlling environment in a selected company and point out possible improvements in logistics activities and devices, with a view to preventing different types of problems. For this purpose, observations of the internal logistics processes in a selected company were used and quantified to assess its internal state. On the basis of the data, controlling measures are put forward to improve the management of the company’s logistics activities. The results of the research highlight the opportunities that exist through controlling activities to collect and analyze information about the logistics activities of a company. By doing so, employees can be given greater responsibility for the fulfilment of their tasks and contribute to the streamlining of logistics processes. For managers, the implementation of controlling represents a change in the way of thinking and managing a company.

Sign in / Sign up

Export Citation Format

Share Document