scholarly journals A Vision-Based Method for Determining Aircraft State during Spin Recovery

Sensors ◽  
2020 ◽  
Vol 20 (8) ◽  
pp. 2401
Author(s):  
Tomasz Kapuscinski ◽  
Piotr Szczerba ◽  
Tomasz Rogalski ◽  
Pawel Rzucidlo ◽  
Zygmunt Szczerba
Keyword(s):  
Rotation Axis ◽  
Recovery Process ◽  
Jaccard Index ◽  
Multimedia Data ◽  
Correct Identification ◽  
Flight Tests ◽  
Data Annotation ◽  
Qualitative And Quantitative ◽  
Displacement Direction ◽  
The Right

This article proposes a vision-based method of determining in which of the three states, defined in the spin recovery process, is an aircraft. The correct identification of this state is necessary to make the right decisions during the spin recovery maneuver. The proposed solution employs a keypoints displacements analysis in consecutive frames taken from the on-board camera. The idea of voting on the temporary location of the rotation axis and dominant displacement direction was used. The decision about the state is made based on a proposed set of rules employing the histogram spread measure. To validate the method, experiments on flight simulator videos, recorded at varying altitudes and in different lighting, background, and visibility conditions, were carried out. For the selected conditions, the first flight tests were also performed. Qualitative and quantitative assessments were conducted using a multimedia data annotation tool and the Jaccard index, respectively. The proposed approach could be the basis for creating a solution supporting the pilot in the process of aircraft spin recovery and, in the future, the development of an autonomous method.

Neuropsychological Assessment of a Case of Early Right Hemiplegia: Qualitative and Quantitative Analysis

1984 ◽  
Vol 59 (3) ◽  
pp. 1007-1010 ◽  
Author(s):  
Daniela Brizzolara ◽  
Anna Maria Chilosi ◽  
Gianni Luigi De Nobili ◽  
Giovanni Ferretti
Keyword(s):  
Quantitative Analysis ◽  
Neuropsychological Assessment ◽  
Normal Development ◽  
Right Hemisphere ◽  
Qualitative And Quantitative Analysis ◽  
Qualitative And Quantitative ◽  
Perceptual Skills ◽  
Left Brain ◽  
Linguistic Functions ◽  
The Right

Evidence for normal development of linguistic but poor visuo-perceptual skills has been obtained with the neuropsychological assessment of a case of early left-brain injury. Data suggest the transfer of linguistic functions from the left to the right hemisphere at the expense of visuo-perceptual capacities for which the right hemisphere is potentially specialized.

scholarly journals The appropriacy of fluency tests in assessing epileptic seizure lateralization in children with partial epilepsy

Psihologija ◽  
2008 ◽  
Vol 41 (2) ◽  
pp. 195-211
Author(s):  
Jasmina Vuksanovic ◽  
Milena Djuric
Keyword(s):  
Left Hemisphere ◽  
Right Hemisphere ◽  
Partial Epilepsy ◽  
Quantitative Comparison ◽  
Control Group ◽  
Healthy Children ◽  
Healthy Controls ◽  
Seizure Focus ◽  
Qualitative And Quantitative ◽  
The Right

Fluency tests are frequently used in clinical practice to asses executive functions. The literature data are not unequivocal although in a great number of papers is pointed out the importance of the left hemisphere, specially of the left frontal lobes in the mediation of phonological fluency and the right hemisphere in the mediation of nonverbal fluency. This paper considers the suitability of fluency tests for the detection of left versus right seizure laterality. The sample consisted of thirty-two epilepsy patients divided into two groups: LHF-participants with the seizure focus in the left hemisphere (n=16), and DHF-participants with the seizure focus in the right hemisphere (n=16), and K-the control group of t age-matched healthy children (n=50) aged 7-11 years. The qualitative and quantitative comparison of the phonological and nonverbal fluency performance was carried out in consideration of the seizure laterality as well as compared to the healthy controls. The results of phonological fluency performance revealed that the performance of the LHF group was significantly reduced as compared to both DHF and K group. The analysis of nonverbal fluency performance revealed that the performance of the DHF group was significantly reduced as compared to both LHF and K group The qualitative analysis obtained valuable data, which could additionally contribute to the neuropsychological evaluation of the left versus right seizure laterality.

scholarly journals Bandung’s Image as a Tourist Destination: An Application of Quantitative and Qualitative Approach

2019 ◽  
Vol 1 (01) ◽  
Author(s):  
Agustinus Februadi ◽  
Nono Wibisono ◽  
Dewi Purnamasari
Keyword(s):  
Factor Analysis ◽  
Quantitative Analysis ◽  
Quantitative Method ◽  
Qualitative Approach ◽  
Tourist Destination ◽  
Nature Tourism ◽  
Scenic Beauty ◽  
Qualitative And Quantitative ◽  
The Right ◽  
Functional Attribute

Bandung is a popular tourist destination in Indonesia and a gateway for tourists who visit destinations around greater Bandung areas. Currently, Bandung is also known as a culinary, shopping, and nature tourism destination. Past studies have measured the image of Bandung as a tourist destination. However, the measurements were done partially due to the use of quantitative method only. Thus, the results were not comprehensive. To resolve the drawbacks of the previous studies, this study used both qualitative and quantitative approaches. Data were collected from 430 domestic tourists by ways of structured and unstructured interviews in 20 different destinations in Bandung and the surrounding. Data were processed by descriptive statistical methods, factor analysis and content analysis. The results of quantitative analysis show that, in term of functional-attribute, Bandung was positively perceived as a destination characterized with natural scenic beauty, many interesting places, and various exotic foods. In terms of the psychological-attribute, Bandung was perceived as the right place for shopping and culinary tourism. The results of qualitative analysis indicate that, functionally, Bandung was a destination with natural scenic beauty, pleasant weather and provide various exotic foods. Psychologically, the tourists experienced calm and tranquil atmosphere, happiness, and comfort.

Problems of forming the right to an insurance pension

2021 ◽  
pp. 795-801
Author(s):  
I.R. Mamatkazin
Keyword(s):  
Labor Relations ◽  
Qualitative And Quantitative ◽  
Legal Relationship ◽  
The Right ◽  
Quantitative Indicators

A peculiarity of pension relations is that the right to a pension should actually arise before the appointment of a pension, that is, before the emergence of a pension legal relationship. Insurance pensions are fully covered by this provision. This indicates not only the connection between pension and labor relations, but also that qualitative and quantitative indicators of labor should be reflected in the employee's pension rights.

Service failures as triggers of superior brand evaluations

2019 ◽  
Author(s):  
Clemens Hutzinger ◽  
Wolfgang Weitzl
Keyword(s):  
Word Of Mouth ◽  
Service Failure ◽  
Recovery Process ◽  
Electronic Word Of Mouth ◽  
Source Information ◽  
Brand Evaluations ◽  
Service Failures ◽  
Complaint Handling ◽  
The Right ◽  
Potential Customers

In pursuit of better purchasing decisions (e.g., choosing the right restaurant or hotel), prospective customers increasingly turn to social media, such as Facebook, to source information about new products, services and brands. On Facebook, a brand’s former, current and potential customers are not only exposed to marketer-created brand postings, but also to other customers’ subjective evaluations, personal thoughts and feelings regarding their consumption experiences (Hennig-Thurau et al., 2010). Research has shown that consumers strive for multifaceted goals when sharing consumption-related postings online. For instance, some satisfied customers want to help the company by posting favorable statements about a positive brand experiences, known as positive electronic word of mouth or PeWOM (Hennig-Thurau et al., 2004), while others want to help their fellow shoppers by giving a neutral description of a regular brand experience (ReWOM). However, many dissatisfied customers also use Facebook brand-pages as a public platform to express their unfavorable thoughts and negative emotions (e.g., anger) after a service failure by means of an online complaint or negative electronic word of mouth (NeWOM; Ward & Ostrom, 2006; Weitzl et al., 2018). Consumers that are directly affected by the service failure and involved in the recovery process are referred to as complainants. The reasons why customers spread NeWOM are diverse. They range from venting (i.e., lessening his/her frustration and reduce anger), via revenge (i.e., intentionally sabotaging and harming the company; Grégoire et al., 2009), warning others (Willemsen et al., 2011), to advice seeking (to acquire new skills/information to better use and/or repair the product; Willemsen et al, 2013). Earlier research demonstrates that online complaints can have strong and diverse detrimental effects, particularly on a brand’s potential customers (so-called online complaint bystanders), including unfavorable attitudes and an increased willingness to criticize the involved brand to others (e.g., Chevalier & Mayzlin, 2006; Sen & Lerman, 2007). However, evidence also exists that ‘webcare’, which is company’s online complaint handling response to a public complaint can repair negative reactions of these bystanders to some extent (e.g., Weitzl & Hutzinger, 2017). It remains, nevertheless, unclear how far such positive reactions can be stimulated with webcare among NeWOM bystanders.

scholarly journals Mobile Applications in Evaluations of Knee Joint Kinematics: A Pilot Study

Sensors ◽  
2019 ◽  
Vol 19 (17) ◽  
pp. 3675 ◽  
Author(s):  
Lisiński ◽  
Wareńczak ◽  
Hejdysz ◽  
Sip ◽  
Gośliński ◽  
...  
Keyword(s):  
Knee Joint ◽  
Mobile Devices ◽  
Home Environment ◽  
Mobile Applications ◽  
Inertial Sensors ◽  
Qualitative And Quantitative ◽  
Study Results ◽  
Left Lower Limb ◽  
Knee Joint Kinematics ◽  
The Right

Because medical professionals lack the means to monitor exercises performed by patients in their home environment directly, there is a strong case for introducing technological solutions into this domain. They include methods that use wireless inertial sensors, which emit signals recorded and processed by special applications that work with mobile devices. This paper’s aim is (a) to evaluate whether such sensors are suitable for qualitative and quantitative motion analysis, and (b) to determine the repeatability of results over a few recordings. Knee joint activity was analysed using a system of inertial sensors connected through a Wi-Fi network to mobile devices. The tested individuals did eight different activities, all of which engaged the knee joint. Each excercise was repeated three times. Study results did not reveal any statistically significant differences between the three measurements for most of the studied parameters. Furthermore, in almost every case, there were no statistically significant differences between the results of the right and left lower limb (p > 0.05). This study shows that easy use and repeatability of results combined with the feature of quantitative and qualitative analysis make the examined method useful for functional evaluations of the knee joint.

scholarly journals Evaluating the Psychosocial Impact of Indoor Public Spaces in Complex Healthcare Settings

2018 ◽  
Vol 12 (3) ◽  
pp. 11-30 ◽  
Author(s):  
Giuseppe Lacanna ◽  
Cor Wagenaar ◽  
Tom Avermaete ◽  
Viren Swami
Keyword(s):  
Public Space ◽  
Well Being ◽  
Space Environment ◽  
Factual Knowledge ◽  
Qualitative And Quantitative ◽  
Healthcare Settings ◽  
A Value ◽  
Quantitative Analyses ◽  
The Right ◽  
The Impact

Objective: This article describes an approach to a metrics-based evaluation of public space in hospitals using cross-disciplinary qualitative and quantitative analyses. The method, Indoor Public Space Measurement (IPSM), is well suited to researchers and designers who intend to evaluate user-centered spatial solutions in hospitals and similar facilities. Background: Healthcare is transiting toward a value-based policy at all levels. Choosing the right set of qualitative and quantitative analyses to support value-based design solutions is not always an easy journey for healthcare design consultants. This article seeks to pull together the key analyses to evaluate the impact of the hospital indoor public space on the psychosocial well-being of the hospital users. Method: A step-by step guide to performing key analyses to evaluate the impact of hospital indoor public space environment on the users’ psychosocial well-being is provided. A case study from the authors’ research is utilized to illustrate the application of the method. Results: Interpolating the results of all the analyses, the reader can identify where in the layout most of interactions among users occur, identify their typology and evaluate the contribution to the general psychosocial well-being, and know which group of users is more exposed to a specific typology of interaction. Conclusions: The IPSM method can help design consultants to measure the impact of the built environment of hospital public space on its occupants’ psychosocial well-being: factual knowledge about the users’ behavioral response with respect to wayfinding and social interaction. The application of the method is not limited to healthcare settings only.

scholarly journals Gaze Palsy as a Manifestation of Todd’s Phenomenon: Case Report and Review of the Literature

2020 ◽  
Vol 10 (5) ◽  
pp. 298
Author(s):  
Karmele Olaciregui Dague ◽  
Manuel Dafotakis ◽  
Jörg B. Schulz ◽  
Rainer Surges
Keyword(s):  
Subarachnoid Hemorrhage ◽  
Clonic Seizure ◽  
Frontal Eye Field ◽  
Correct Identification ◽  
Eye Field ◽  
Narrative Literature Review ◽  
Stroke Mimic ◽  
Therapeutic Decision Making ◽  
The Right ◽  
Gaze Palsy

Background: Though Todd’s phenomenon (TP) is a relatively rare occurrence, its correct identification is of key diagnostic and therapeutic importance as a stroke mimic. Here we describe a case of isolated gaze palsy as a manifestation of TP, discuss periictal gaze abnormalities as lateralizing sign involving the frontal eye field (FEF), and present a narrative literature review. Methods: We reviewed the main features of the case and conducted a structured literature search of TP and gaze palsy using PubMed. We restricted the search to publications in English, Spanish, French, and German. Case presentation: A 71-year-old male with a history of right frontotemporal subarachnoid hemorrhage was admitted to the Emergency Department of our institution after suffering a first unprovoked focal to bilateral tonic-clonic seizure with ictal gaze deviation to the left. Cranial imaging showed no signs of ischemia, intracerebral hemorrhage, or tumor. The patient presented the following postictal features: involuntary eye deviation to the right due to left-sided gaze palsy and disorientation in time with preserved responsiveness. Eye movements were normal three days later. We concluded that the patient suffered from new-onset epilepsy due to sequelae following the right frontotemporal subarachnoid hemorrhage, affecting the FEF with contralateral ictal gaze deviation, and postictal gaze palsy with ipsilateral eye deviation as an unusual Todd’s phenomenon. Conclusion: Unusual manifestations of TP are uncommon but clinically highly relevant, as they can mimic stroke or epileptic status and are decisive in the diagnostic and therapeutic decision-making process. Though postictal gaze palsy has been reported associated with other deficits, this constitutes, to our knowledge, the first report of isolated gaze palsy as a form of TP. Further research into the underlying causes is needed. Ictal contralateral gaze and head deviation, and probably postictal ipsilateral gaze deviation if present, are very helpful for the lateralization of the seizure-onset zone.

scholarly journals Quantifying the Effects of Visual Road Information on Drivers’ Speed Choices to Promote Self-Explaining Roads

2020 ◽  
Vol 17 (7) ◽  
pp. 2437
Author(s):  
Yuting Qin ◽  
Yuren Chen ◽  
Kunhui Lin
Keyword(s):  
Field Experiments ◽  
Prediction Models ◽  
Semantic Segmentation ◽  
Qualitative And Quantitative ◽  
Road Design ◽  
Driving Speed ◽  
Road Geometry ◽  
Controlling Variables ◽  
The Right ◽  
Road Characteristics

Roads should deliver appropriate information to drivers and thus induce safer driving behavior. This concept is also known as “self-explaining roads” (SERs). Previous studies have demonstrated that understanding how road characteristics affect drivers’ speed choices is the key to SERs. Thus, in order to reduce traffic casualties via engineering methods, this study aimed to establish a speed decision model based on visual road information and to propose an innovative method of SER design. It was assumed that driving speed is determined by road geometry and modified by the environment. Lane fitting and image semantic segmentation techniques were used to extract road features. Field experiments were conducted in Tibet, China, and 1375 typical road scenarios were picked out. By controlling variables, the driving speed stimulated by each piece of information was evaluated. Prediction models for geometry-determined speed and environment-modified speed were built using the random forest algorithm and convolutional neural network. Results showed that the curvature of the right boundary in “near scene” and “middle scene”, and the density of roadside greenery and residences play an important role in regulating driving speed. The findings of this research could provide qualitative and quantitative suggestions for the optimization of road design that would guide drivers to choose more reasonable driving speeds.

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