scholarly journals Influence of different types of loads on quality of spatial orientation and operator activity of operators of an aviation profile

2018 ◽  
Vol 20 (2) ◽  
pp. 99-104
Author(s):  
A A Blaginin ◽  
S N Sinelnikov ◽  
S P Lyashed’ko
Keyword(s):  
Spatial Orientation ◽  
Current Problem ◽  
Flight Safety ◽  
Sustainable Improvement ◽  
Different Types ◽  
Main Input ◽  
The Impact ◽  
Operator Activity ◽  
A Current

The positive experience of using modern aviation complexes is repeatedly confirmed by their increasing participation in the solution of many combat and transport tasks. The aircraft equipment in system «pilot - plane - environment», continues to be improved, and possibilities of operators of an aviation profile remain at the same level. This discrepancy requires the experts of aviation medicine to search for new approaches to rising of fastness of a human body to the impact of aggressive air flight factors. It is known that the violation of spatial orientation continues to remain a current problem of flight safety and it accounts for 5 to 14% of all aviation incidents. The preventive events held within the last several decades do not lead to a qualitative solution to this problem. The process of spatial orientation is a complex multi-sensory type of perception, the main input channels of information for which are vestibular and visual analyzers. Research is quality of a training of spatial orientation lasting 10 days at the statokinetic, optokinetic and combined types of influence is investigated. It is established that the most effective type of a training is the combined stato-optokinetic influence, leading to the greatest improvement, as qualities of spatial orientation, so and qualities of performance of operator activity. To achieve sustainable improvement of these qualities it is necessary to conduct training for at least 9 days.

scholarly journals Threat or Corrective? Assessing the Impact of Populist Parties in Government on the Qualities of Democracy: A 19-Country Comparison

2021 ◽  
pp. 1-21
Author(s):  
Davide Vittori
Keyword(s):  
Negative Impact ◽  
Quality Of Democracy ◽  
Clear Cut ◽  
Liberal Democratic ◽  
Country Comparison ◽  
Democratic Regimes ◽  
Different Types ◽  
The Impact

Abstract Scholars have long debated whether populism harms or improves the quality of democracy. This article contributes to this debate by focusing on the impact of populist parties in government. In particular, it inquires: (1) whether populists in government are more likely than non-populists to negatively affect the quality of democracies; (2) whether the role of populists in government matters; and (3) which type of populism is expected to negatively affect the quality of liberal-democratic regimes. The results find strong evidence that the role of populists in government affects several qualities of democracy. While robust, the findings related to (2) are less clear-cut than those pertaining to (1). Finally, regardless of their role in government, different types of populism have different impacts on the qualities of democracy. The results show that exclusionary populist parties in government tend to have more of a negative impact than other forms of populism.

scholarly journals A comparative study of the voice-related quality of life among Egyptian elderly with and without voice complaints

2020 ◽  
Vol 36 (1) ◽  
Author(s):  
Nesreen Fathi Mahmoud ◽  
Huda Zahran ◽  
Sherif Abdelmonam
Keyword(s):  
Quality Of Life ◽  
Elderly Population ◽  
Life Quality ◽  
Voice Disorders ◽  
The Elderly ◽  
Different Types ◽  
Related Quality ◽  
The Impact ◽  
The Voice

Abstract Background This study focuses on the self-perception of the voice in the elderly as assessed by the Voice-Related Quality of Life (V-RQOL) questionnaire. This work aimed to compare differences in the voice-related quality of life outcomes between (1) elderly with and without voice disorders, (2) female and male elderly with voice disorders, and (3) different types of voice disorders, and to explore the correlation between the V-RQOL and perceptual analysis done by the clinician. Forty-three dysphonic and 44 non-dysphonic elderly filled out the Voice-Related Quality of Life (V-RQOL) protocol that analyzes the impact of dysphonia on life quality. Vocal perceptual assessment of each subject with dysphonia was made by three voice therapists, followed by a flexible nasofibrolaryngoscope. Results A significant statistical difference was found between the means of total V-RQOL scores and its subdomains for each group (dysphonic and non-dysphonic). No significant differences were found between male and female elderly with dysphonia. The statistical analysis showed a significant correlation with the vocal assessment made by the clinicians and the V-RQOL self-assessment made by the subjects. Conclusions This study provides valuable information regarding the risk factors that contribute to vocal quality in the elderly population. Our results revealed that different types of voice disorders are common among the elderly population with significant negative effects on quality of life. It was observed that the poorest score on the V-RQOL was for functional voice disorders, followed by neoplastic lesions, whereas MAPLs had the best score on the V-RQOL.

scholarly journals Investigating the impact of maximum residue limit standards on the vegetable trade in Japan

2017 ◽  
Vol 20 (1) ◽  
pp. 159-173 ◽  
Author(s):  
Jong Woo Choi ◽  
Chengyan Yue
Keyword(s):  
Leafy Vegetables ◽  
Gravity Models ◽  
Maximum Residue Limit ◽  
The World ◽  
Different Types ◽  
Imported Food ◽  
The Impact ◽  
Root Vegetables

Countries have become increasingly concerned about the safety of their food. Many countries have imposed standards on both domestically produced and imported food. In particular, countries have implemented regulations to control the quantity and quality of vegetable imports. Maximum Residue Limit (MRL) standards are one of the main restrictions adopted by numerous countries. Japan has one of the strictest MRL standards in the world. This study builds on previous studies to explore the impact of MRL standards on Japanese vegetable imports. Gravity models are used to analyze how MRL standards influence the Japanese imports of different types of vegetables (fruit vegetables, leafy vegetables, bulb vegetable, and root vegetables). The results reveal that the trade impacts of MRL standards are different for different types of vegetables, with the most significant impact on imports of leafy and fruit vegetables and the least significant impact on imports of bulb vegetables.

scholarly journals Student Quality Evaluation amongst Tahfiz Science Schools in Malaysia

2018 ◽  
pp. 319-324
Keyword(s):  
Self Efficacy ◽  
Labour Force ◽  
Science Students ◽  
Leadership Qualities ◽  
Self Confidence ◽  
Different Types ◽  
Science School ◽  
Education Model ◽  
The Impact

At present, there are three streams of Tahfiz Science School (TSS) in Malaysia, namely TSS wholly owned by the federal government, private, and private-state. Therefore, each TSS provider will implement its own Islamic education model. The objective of the study was to assess the impact of TSS education on students’ self-efficacy, self-confidence, and leadership qualities. Overall, the findings of the survey carried out revealed that students have high self-efficacy, self-confidence, and leadership. Nevertheless, there is a difference in self-efficacy among the different types of TSS. Such differences in the quality of students are partly due to differences in quality of teachers, curriculum, financial resources, and facilities and infrastructure of the TSS. These differences also reflect that there is no uniform tahfiz science education (including curricula). Therefore, a uniform education policy of TSS is necessary to sustain the quality of tahfiz science students and provide Islamic technocrats for the labour force.

scholarly journals Network Performance Criteria for Telecommunication Traffic Types driven by Quality of Experience

2019 ◽  
Vol 15 (3) ◽  
pp. 233-244 ◽  
Author(s):  
Ines Ramadža ◽  
Vesna Pekić ◽  
Julije Ožegović
Keyword(s):  
Network Performance ◽  
Quality Of Experience ◽  
Performance Criteria ◽  
Live Streaming ◽  
Traffic Routing ◽  
Different Types ◽  
Telecom Operator ◽  
The Impact ◽  
The Given

A common reason for changing the chosen service provider is the users' perception of service. Quality of Experience (QoE) describes the end user's perception of service while using it. A frequent cause of QoE degradation is inadequate traffic routing, where, other than throughput, selected routes do not satisfy minimum network requirements for the given service or services. In order to enable QoE-driven routing, per traffic type defined routing criteria are required. Our goal was to obtain those criteria for relevant services of a telecom operator. For the purpose of identifying services of interest, we first provide short results of user traffic analysis within the telecom operator network. Next, our work presents testbed measurements which explore the impact of packet loss and delay on user QoE for video, voice, and management traffic. For video services, we investigated separately multicast delivery, unicast HTTP Live Streaming (HLS), and unicast Real Time Streaming Protocol (RTSP) traffic. Applying a threshold to QoE values, from the measured dependencies we extracted minimum network performance criteria for the investigated different types of traffic. Finally, we provide a comparison with results available in the literature on the topic.

scholarly journals The Impact of Autoantibodies on IVF Treatment and Outcome: A Systematic Review

2019 ◽  
Vol 20 (4) ◽  
pp. 892 ◽  
Author(s):  
Mara Simopoulou ◽  
Konstantinos Sfakianoudis ◽  
Evangelos Maziotis ◽  
Sokratis Grigoriadis ◽  
Polina Giannelou ◽  
...  
Keyword(s):  
Systematic Review ◽  
Inclusion Criteria ◽  
Vitro Fertilization ◽  
Different Types ◽  
Significant Research ◽  
Central Database ◽  
The Impact

The role of autoantibodies in in vitro fertilization (IVF) has been discussed for almost three decades. Nonetheless, studies are still scarce and widely controversial. The aim of this study is to provide a comprehensive systematic review on the possible complications associated to autoantibodies (AA) impeding the chances of a successful IVF cycle. An Embase, PubMed/Medline and Cochrane Central Database search was performed on 1 December 2018, from 2006 until that date. From the 598 articles yielded in the search only 44 relevant articles ultimately fulfilled the inclusion criteria and were qualitatively analyzed. Five subsets of results were identified, namely, thyroid related AA, anti-phospholipid antibodies, anti-nuclear antibodies, AA affecting the reproductive system and AA related to celiac disease. It may be implied that the majority of auto-antibodies exert a statistically significant effect on miscarriage rates, whereas the effects on clinical pregnancy and live birth rates differ according to the type of auto-antibodies. While significant research is performed in the field, the quality of evidence provided is still low. The conduction of well-designed prospective cohort studies is an absolute necessity in order to define the impact of the different types of autoantibodies on IVF outcome.

scholarly journals An evaluation of adhesive sample holders for advanced crystallographic experiments

2014 ◽  
Vol 70 (9) ◽  
pp. 2390-2400 ◽  
Author(s):  
Marco Mazzorana ◽  
Juan Sanchez-Weatherby ◽  
James Sandy ◽  
Carina M. C. Lobley ◽  
Thomas Sorensen
Keyword(s):  
Three Dimensional ◽  
X Ray Diffraction ◽  
Porous Support ◽  
Step Procedure ◽  
Alternative Approach ◽  
Hydration State ◽  
Different Types ◽  
One Step ◽  
The Impact

The hydration state of macromolecular crystals often affects their overall order and, ultimately, the quality of the X-ray diffraction pattern that they produce. Post-crystallization techniques that alter the solvent content of a crystal may induce rearrangement within the three-dimensional array making up the crystal, possibly resulting in more ordered packing. The hydration state of a crystal can be manipulated by exposing it to a stream of air at controlled relative humidity in which the crystal can equilibrate. This approach provides a way of exploring crystal hydration space to assess the diffraction capabilities of existing crystals. A key requirement of these experiments is to expose the crystal directly to the dehydrating environment by having the minimum amount of residual mother liquor around it. This is usually achieved by placing the crystal on a flat porous support (Kapton mesh) and removing excess liquid by wicking. Here, an alternative approach is considered whereby crystals are harvested using adhesives that capture naked crystals directly from their crystallization drop, reducing the process to a one-step procedure. The impact of using adhesives to ease the harvesting of different types of crystals is presented together with their contribution to background scattering and their usefulness in dehydration experiments. It is concluded that adhesive supports represent a valuable tool for mounting macromolecular crystals to be used in humidity-controlled experiments and to improve signal-to-noise ratios in diffraction experiments, and how they can protect crystals from modifications in the sample environment is discussed.

scholarly journals Impact of industrial effluent on macrobenthic diversity: A case study of Thannirbhavi and Chitrapur coastal area of Mangalore

2020 ◽  
pp. 51-61
Author(s):  
Madhu kumari Alok kumar
Keyword(s):  
Industrial Effluent ◽  
Industrial Effluents ◽  
Oil Refinery ◽  
Benthic Organism ◽  
Different Types ◽  
Abundance And Diversity ◽  
The Impact ◽  
Dye Industry

In view of understanding the impact of effluents and on the occurrence and distribution of macrobenthic organisms, an investigation has been carried out for a period of 8 months from October 2006 to May 2007 in the nearshore water of Thannirbhavi and Chitrapur receiving treated industrial effluents and Bengre coast having estuarine influences. The quality composition of benthic organism revealed the presence of hydroids such as Obeliasp,Cordylophorasp and companularia sp. Polychaetes belonging to 15 diferent families have been identified and their distribution revealed variation with respect to the type of  the effluents.  24 different types of molluscss have been identified and their occurrence and distribution was found to be related to type of sediment and the quality of the effluents. Bulks of crustaceans were formed mainly due to species of Gammarus, Caprellids and Tanaidaceans. The great abundance and diversity of benthic organisms was observed in the Thannirbhavi receiving effluents from a fertilizer industry, when compare to the Chitrapur receiving treated effluents from a dye industry and an oil refinery industry. Silty-clayey sediment harbored higher density of polychaetes where as sandy-silty sediment supported greater abundance of molluscs.

scholarly journals IDENTIFICATION OF SECTORAL LOGISTICS SERVICE QUALITY GAPS BY APPLYING SERVQUAL METHOD

Transport ◽  
2020 ◽  
Vol 35 (4) ◽  
pp. 419-434
Author(s):  
Ieva Meidutė-Kavaliauskienė ◽  
Virgilija Vasilienė-Vasiliauskienė ◽  
Aidas Vasilis Vasiliauskas
Keyword(s):  
Service Quality ◽  
Competitive Edge ◽  
Logistics Service ◽  
Logistics Services ◽  
Different Types ◽  
Business Entities ◽  
The Right ◽  
Logistics Service Quality ◽  
The Impact

Today, simply delivering a product to the right place at the right time is no longer enough. Customers demand more; they demand the full suite of logistics services. Customers thus seek higher-value and additional services, and more, which enable them to compete. Thus, the problem underlying analysis is customers’ growing dissatisfaction with existing services and their quality. Quality of service no longer gives business entities a competitive edge. It is vital for companies to have different activities, to operate in different branches of the economy, and to work with different types of goods. However, despite these differences, they all want to obtain maximum satisfaction from logistics services. With this in mind, the purpose of this article is to present a study examining the impact of logistics service quality on the satisfaction of companies working with different categories of goods Results indicated that different logistics service users do not have the same requirements for logistics service quality. Moreover, it was proved that SERVQUAL method is suitable for identification of sectoral value gaps, which can be applied in practice assuring competitive advantage.

Supporting Requirements to Code Traceability Creation by Code Comments

2021 ◽  
Vol 31 (08) ◽  
pp. 1099-1118
Author(s):  
Guohua Shen ◽  
Haijuan Wang ◽  
Zhiqiu Huang ◽  
YaoShen Yu ◽  
Kai Chen
Keyword(s):  
Empirical Study ◽  
Software Maintenance ◽  
Source Code ◽  
The Other ◽  
Different Types ◽  
The Creation ◽  
The Impact ◽  
Code Tracing

Requirements-to-code tracing is an important and costly task that creates trace links from requirements to source code. These trace links help engineers reduce the time and complexity of software maintenance. Code comments play an important role in software maintenance tasks. However, few studies have focused intensively on the impact of code comments on requirements-to-code trace links creation. Different types of comments have different purposes, so how different types of code comments provide different improvements for requirements-to-code trace links creation? We focus on learning whether code comments and different types of comments can improve the quality of trace links creation. This paper presents a study to evaluate the contribution of code comments and different types of code comments to the creation of trace links. More specifically, this paper first experimentally evaluates the impact of code comments on requirements-to-code trace links creation, and then divides code comments into six categories to evaluate its impact on trace links creation. The results show that the precision increases by an average of 15% (based on the same recall) after adding code comments (even for different trace links creation techniques), and the type of Purpose comments contributes more to the tracing task than the other five. This empirical study provides evidence that code comments are effective in tracing links creation, and different types of code comments contribute differently. Purpose comments can be used to improve the accuracy of requirements-to-code trace links creation.

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