Qualifications of Instruction Sequence Failures, Faults and Defects: Dormant, Effective, Detected, Temporary, and Permanent

Starting out from the survey of instruction sequence faults from [6] program faults are classified according to the conventional criteria of being dormant, effective, detected, temporary, and permanent. Being retrospectively approved is introduced as an additional qualification. For this theoretical investigation the context is simplified by contemplating instruction sequences as a theoretical model for programs, and by assuming that instruction sequences are supposed to compute total transformations on finite bit sequences of a fixed length only. The main conclusion which can be drawn from this work concerns the notion of dormancy. First of all it is noticed that the unconventional notion of a dormant failure is both plausible and amenable to a straightforward and convincing definition. The conventional notion of a dormant fault, however, is much harder to grasp and the definition of a dormant fault which is provided in the paper may be disputed. The notion of a dormant fault seems to admit no convincing intuition. All faults are defects but not the other way around. The idea of a fault exclusively depends on an instruction sequence and a specification of which it is considered to be a candidate implementation. In the presence of a design, however, in addition to faults, the notion of a deviation from design (DFD) defect arises, which constitutes a class of defects many of which are not faults. For DFD defects the notion of dormancy admits a straightforward and convincing definition.

Nitrogen as an environmentally friendly suppression agent for aircraft cargo fire safety

Fire suppression systems in cargo compartments are a certification requirement for commercial aircraft safety. Halon production was banned and usage ends in 2040 according to Montreal Protocol for environmental reasons. This necessitates an alternative environmentally friendly agent. Quantitative analysis of nitrogen as agent established suitability of the suppression system. The Minimum Performance Standards specifies the qualification procedure of an agent through four scenarios – bulk load; containerised load; surface burning; and aerosol can explosion. Empirical sources from Airbus, independent computational fluid dynamics studies and small-scale cup-burner tests indicate suitability of nitrogen specific to aircraft cargo fire suppression. The nitrogen delivery system and the experimental apparatus are presented. Extensive commissioning tests verified instrumentation reliability. All the four scenarios were conducted at Cranfield University, in a replica of a wide-body aircraft cargo compartment. In a reduced oxygen environment (11%) obtained with nitrogen discharge, the aerosol can explosion tests were performed without any evidence of explosion or pressure increase beyond the expected baseline value. The surface burning scenario was completed successfully and passed the Minimum Performance Standard criteria. The maximum average temperature was found to be 220°C (limit – 293°C). All the scenarios passed the Minimum Performance Standard criteria for indicating successful prevention of Class B fire re-ignition. Similarly, the containerised and bulk-load scenarios obtained results that passed the Minimum Performance Standard criteria for successfully maintaining continued fire suppression for a specified period of time. The maximum average temperature in containerised-load fire scenario was found to be 210°C (limit – 343°C) and in bulk-load scenario was 255°C (limit – 377°C). Additional qualification criteria and system design are presented in this article according to the Minimum Performance Standard format. This work can be extended to introduce standard testing for safety critical systems, such as engine bay and lithium-ion fires.

Recommendations for statistical methods usage for processing data of pedagogical experiments

In some institutions of continuous education in the Republic of Moldova there is no course in Applied Statistics for Teacher taught. Because of this, the graduates encounter some difficulties in processing the experimental data. Through this article, the authors propose suggestions and models for data processing for additional qualification / requalification theses.

Use of telemedicine by practising allergists before and during the SARS-CoV-2 pandemic

Summary Background The severe acute respiratory syndrome coronavirus type 2 (SARS-CoV-2) pandemic presented unprecedented challenges to both inpatient and outpatient care. In order to maintain good care under necessary contact restrictions, especially in the outpatient sector, the use of telemedical applications was demanded and promoted. The exploratory survey among members of the Association of German Allergists (AeDA) was intended to show how these were received among allergists in private practice. Methods The survey was restricted to actively practising members of the AeDA who had previously given their consent to receive such surveys (n = 437). They were invited by email to participate in a survey on the topic of “Telemedicine in everyday clinical practice in allergology”. The survey included quantitative and qualitative questions on the use of telemedicine services before and during the pandemic and was conducted anonymously on the SoSci Survey platform. Participation was possible in the period from June to August 2020. Results In all, 76 specialists with additional qualification in allergology took part in the survey. Of these, 71 completed the full questionnaire. Before the start of the pandemic-related contact restrictions, 46.5% (33/71) stated that they had used telemedicine in their clinical practice. This number increased to 73.2% (52/71) after 31 January 2020. The largest increase (4.3% vs. 15.6%) was seen in the area of video consultations. Furthermore, 43/76 participants can imagine integrating telemedicine services into their daily clinical routine in the future. Conclusion The use of telemedical services, especially video consultations, increased significantly during the SARS-CoV‑2 pandemic in Germany. The majority of respondents perceive the implementation as positive and can imagine continuing to use telemedical methods after the end of the pandemic.

Assess the Knowledge and Practice among Cardiac Nurses about Patient Safety after Cardiac Catheterization, Tamilnadu

Background: Cardiac catheterization is an invasive procedure which is used in the diagnosis and treatment of several cardiac diseases. It may lead to several major and minor complications which may contribute to morbidity and mortality. Early recognition of complications and proper care is logically tied to taking action to receive prompt treatment and thus minimizing further complications. Objectives: (i) To find out the level of knowledge and practice level of cardiac nurses related to patient safety after cardiac catheterization. (ii) To find the association between selected demographic variables with level of knowledge and practice of cardiac nurses regarding patient safety after cardiac catheterization. Method: A survey was conducted in 30 convenient samples with a pre-validated questionnaire and an observational tool was also used in assessing the quality of care provided. The total period of the study was from January to February 2020. The study population was staff nurses from cardiology medical intensive care unit and cardiology medical ward. Result: The findings shows that in the level of knowledge among 30 samples the level of knowledge frequency and percentages. Adequate 22(73%), moderately adequate 06(20%), inadequate 02(7%). Mean 7.53, standard deviation 1.33. In the level of practice among 30 samples the level of practice frequency and percentages. Good 20(67%), average 08(27%), poor 02(6%). Mean 15.6, standard deviation 3.21. The findings shows that there is a significant association on knowledge level between demographic variables Additional qualification and Total year of experience at p<0.05. In practice there is a significant association on practice level between demographic total year of experience at p<0.05. Conclusion: The Study concluded that most of the Staff nurses has adequate knowledge and good practice regarding care of patients after cardiac catheterization and there is an association on level of knowledge with demographic variables like additional qualification and total year of experience and in practice there is association with total year of experience. Keywords: cardiac nurses, patient safety, cardiac catheterization.

Statement of the German Roentgen Society, German Society of Neuroradiology, and Society of German-speaking Pediatric Radiologists on Requirements for the Performance and Reporting of MR Imaging Examinations Outside of Radiology

Background Magnetic Resonance Imaging (MRI) is a very innovative, but at the same time complex and technically demanding diagnostic method in radiology. It plays an increasing role in high-quality and efficient patient management. Quality assurance in MRI is of utmost importance to avoid patient risks due to errors before and during the examination and when reporting the results. Therefore, MRI requires higher physician qualification and expertise than any other diagnostic imaging technique in medicine. This holds true for indication, performance of the examination itself, and in particular for image evaluation and writing of the report. In Germany, the radiologist is the only specialist who is systematically educated in all aspects of MRI during medical specialty training and who must document a specified, high number of examinations during this training. However, also non-radiologist physicians are increasingly endeavoring to conduct and bill MRI examinations on their own. Method In this position statement, the following aspects of quality assurance for MRI examinations and billing by radiologists and non-radiologist physician specialists are examined scientifically: Requirements for specialist physician training, MRI risks and contraindications, radiation protection in the case of non-ionizing radiation, application of MR contrast agents, requirements regarding image quality, significance of image artifacts and incidental findings, image evaluation and reporting, interdisciplinary communication and multiple-eyes principle, and impact on healthcare system costs. Conclusion The German Roentgen Society, German Society of Neuroradiology, and Society of German-speaking Pediatric Radiologists are critical with regard to MRI performance by non-radiologists in the interest of quality standards, patient welfare, and healthcare payers. The 24-month additional qualification in MRI as defined by the physician specialization regulations (Weiterbildungsordnung) through the German state medical associations (Landesärztekammern) is the only competence-based and quality-assured training program for board-certified specialist physicians outside radiology. This has to be required as the minimum standard for performance and reporting of MRI exams. Exclusively unstructured MRI training outside the physician specialization regulations has to be strictly rejected for reasons of patient safety. The performance and reporting of MRI examinations must be reserved for adequately trained and continuously educated specialist physicians. Key Points: Citation Format

Teacher efficacy for online teaching during the COVID-19 pandemic

The purpose of this study was to examine secondary teachers’ efficacy for teaching in a fully online teaching environment during the sudden transition to online teaching that happened due to the COVID-19 pandemic. This study was aimed at understanding how specific variables, teaching experience, professional development (PD) experience, and teaching supports might correlate with self-efficacy perceptions of teachers transitioning to online teaching during a pandemic in the domains of student engagement, instructional strategies, classroom management and computer skills. The instrument used to measure teacher efficacy for online teaching was a web based 32-item survey that was given to Ontario secondary teachers in a greater Toronto district school board. We argued that prior experience with online learning such as Additional Qualification (AQ) courses or online professional development would build greater self-efficacy amongst teachers as they transition to online learning. The results indicated that higher online teaching efficacy scores correlated with having taken online Additional Qualification (AQ) courses[1] and online professional development sessions. The highest online teaching efficacy scores correlated with having previously used the board provided learning management system (LMS) and using virtual technology supports. These indicators are correlated with higher scores of online teaching efficacy but require further investigation as to how they can better provide support for teachers in online learning environments.

Serious Consequences Caused by the Crime as an Aggravating Circumstance

The judicial practice of sentencing is analyzed in the case when a criminal offense has serious consequences that are outside the objective side of a certain socially dangerous act. Given the evaluative nature of this circumstance and the lack of legislative explanation of its content, there are typical mistakes that courts make in classifying the serious consequences of the crime as an aggravating circumstance. The order of sentencing in the case when the death of the victim was caused by a criminal offense, property damage in large or especially large amounts, etc. was investigated. The procedure for distinguishing serious consequences as an aggravating circumstance and as a mandatory feature of the objective side of the relevant criminal offense is analyzed. It is established that in some cases the task of a serious criminal offense requires additional qualification under other articles of the Criminal Code of Ukraine. The article proposes the criteria with serious consequences of the crime should be considered as an aggravating circumstance. It is established that the grave consequences caused by the crime as an aggravating circumstance do not form a new basis for criminal liability, as the court imposes punishment within the sanction of the article. Also, when the court decides the issue of criminal responsibility of the perpetrator, the signs of the composition of the criminal offense will be crucial, and not the presence of aggravating circumstances. After all, the court must impose a penalty within the limits provided by the sanction of the article containing the elements of a particular offense. It is argued that the main feature that distinguishes serious consequences from other criminal offenses and from other aggravating circumstances is the significance of these circumstances, i.e. the significant strength of influence compared to other circumstances that characterize the severity of the crime and the perpetrator. Recognition of certain consequences as grave and classifying them as aggravating circumstances belongs to the court, which must thoroughly examine the evidence of the occurrence of such consequences and make a final decision.

Computer simulation of overvoltages in 6–10 kV distribution networks for single-phase ground faults

Nowadays, when designing and operating electric power systems, special attention is paid to predicting emergency situations and minimizing losses in case they occur. The most common method of overvoltage investigations is the use of simulation models in specialized application packages, which imposes additional qualification requirements on the electrical engineer.The authors propose modeling technologies and a software tool for modeling and research of overvoltages that occur in 6–10 kV distribution networks at single-phase ground faults, including the method of visual design of the distribution network through the use of information technology and automated generation of mathematical model for its further study to analyze overvoltages.

Electromobility and Its Effects on Automotive Workshops

Due to stricter CO2 emission limits, new competitors and imminent driving bans, electromobility has registered high growth rates in Austria. The rising number of electric vehicles not only has an impact on automobile production and its suppliers, but also on the after-sales business with the focus on the repair market. In order to meet these requirements, automotive workshops have to redesign and realign their organizational structures and they have to compensate their decreasing service-revenues. Electromobility requires additional qualification and training of employees and the expansion of technical equipment. Small workshops especially are facing this challenge. In order to obtain an answer to the current status of service companies, a qualitative study was carried out and the status was determined based on expert interviews. Recommendations for action can be derived as a result and it can be shown that there is a big difference between the independent and authorised workshops.