bluuebunny/crossref_metadata_2025 huggingface dataset:
Surcharge : enjeux intrapsychiques. Traitement de l’excès, traitement de l’intraitable
Authors: André Joanne
Published: September 2022

Cet article propose de penser l’éprouvé de surcharge au regard de l’approche psychodynamique. Comme expérience humaine, cet excès, ce trop de charge nécessite d’être pensé du point de vue des enjeux psychiques qu’il sous-tend. Si l’excès et la difficulté de son traitement sont repérables, la qualité de ce qui sature la Psyché, les modalités de défense du moi ainsi que les voies de traitement sont à interroger.
La surcharge des équipes de santé en temps de pandémie de Covid-19
Authors: Tourinho Moretto Maria Lívia
Published: September 2022

Cet article a pour objectif de présenter une partie du travail de chercheurs psychanalystes de l’université de São Paulo au sein des hôpitaux brésiliens, dans le contexte de la pandémie de Covid-19, en mettant l’accent sur l’approche psychanalytique de la souffrance des professionnels des équipes de santé, notamment dans les situations où la souffrance de ces professionnels se manifeste sous la forme d’une fatigue intense et d’une surcharge émotionnelle.
La surcharge des parents venus d’ailleurs
Authors: Mansouri Malika
Published: September 2022

Devenir parent, éloigné du monde connu, implique de devoir s’ajuster à un nouveau monde, empreint d’étrangeté. Mais lorsque ce nouveau monde rejette et exclut, la surcharge devient empêchement. Cela vient impacter le mode relationnel qui s’établit avec l’enfant et entraver les potentialités de son devenir.
Une fable sur le refus de l’histoire et le déni de la folie : l’inconscient et le pangolin
Authors: Rassat Philippe
Published: September 2022

À partir d’un comparatif entre la situation sanitaire liée au Covid et la crise du champ sanitaire et médico-social de la pédopsychiatrie en France, l’auteur cherche à démontrer que le « moindre coût » « quoi qu’il en coûte » a pour résultat la fin d’un réel soin psychique apporter aux enfants en difficulté. L’objectif des pouvoirs politiques et financiers étant d’éradiquer l’Inconscient comme le Pangolin.
Guerre d’Ukraine : un modèle coréen ?
Authors: Grosser Pierre
Published: September 2022

La guerre en Ukraine renouvelle les interrogations sur le triangle Washington/Pékin/Moscou, et sur la place de l'Europe dans le jeu des puissances. L'expérience de la guerre de Corée peut aider à mesurer les relations mouvantes entre les trois acteurs : importance relative des théâtres, risques d'escalade, guerre idéologique, jeu des alliances, dynamique de réarmement, débats internes aux États-Unis… Les leçons que tireront Washington et Pékin du conflit sont au coeur du débat, en particulier pour Taïwan.
La fragilité alimentaire mondiale et la guerre d’Ukraine
Authors: Abis Sébastien , Mordacq Diane
Published: September 2022

La guerre en Ukraine fragilise la sécurité alimentaire mondiale. La Russie et l'Ukraine sont en effet deux importants producteurs et exportateurs de produits agricoles, en particulier dans le domaine céréalier. En outre, ce conflit intervient dans un contexte déjà tendu. En effet, le secteur de l'alimentation est chamboulé depuis plusieurs années par la stratégie conquérante de la Chine, le changement climatique et la pandémie de Covid-19.
Guerre d’Ukraine : un embarras pour Pékin
Authors: Julienne Marc
Published: September 2022

Depuis le début de la guerre en Ukraine, Pékin adopte une neutralité de façade mais soutient en réalité Moscou. Les dirigeants chinois et russes louent la solidité des liens entre leurs pays. Cependant, la Russie est en train de se placer dans une situation de dépendance à l'égard de la Chine. Audelà des discours, Pékin refuse de s'engager dans le conflit ukrainien et fait preuve de retenue. Cette prudence s'explique notamment par la fragilisation de la position internationale de la Chine.
Évolution de la formation des psychologues
Authors: Bouvet Cyrille , Feldman Marion , Gay Marie Claire , Skandrani Sara , Vanwalleghem Stéphanie , Zebdi Rafika , Riazuelo Hélène
Published: September 2022

Volontairement écrit à plusieurs mains, cet article retrace l’histoire de la démarche des enseignants de l’université Paris-Nanterre qui ont fait le projet d’apporter à leurs étudiants une vision élargie de la psychologie clinique qui dépasse les traditionnelles « orientations » des universités en matière de pédagogie.
Long-Term Visual Outcomes in Exudative Age-Related Macular Degeneration Patients With Unanticipated Gaps in Therapy
Authors: Bui Yvonne T. , Starr Matthew R. , Kung Felix F. , Mejia Camilo A. , Bakri Sophie J.
Published: September 2022

BACKGROUND AND OBJECTIVES:

This study's objective was to describe long-term visual outcomes of patients with age-related macular degeneration (AMD) treated with intravitreal anti-vascular endothelial growth factor injections who were lost to follow-up and then resumed treatment with anti-vascular endothelial growth factor injections.

MATERIALS AND METHODS:

This was a retrospective cohort study of eyes with at least 7 years of follow-up following the initiation of treatment for wet AMD with and without gaps in therapy.

RESULTS:

The baseline mean logMAR visual acuity was 0.65 ± 0.5 (Snellen acuity 20/89) in eyes with gaps in therapy and 0.53 ± 0.3 (20/68) in eyes without gaps. In the initial 7-year follow-up period, the eyes with gaps in therapy had significantly worse visual acuity (
P
< .001) and this remained significant when accounting for baseline visual acuity (
P
< .001).

CONCLUSIONS:

Gaps in intravitreal injection therapy for exudative AMD were negatively associated with visual acuity. Adherence to therapy is important to address in the care of patients with exudative AMD.

[
Ophthalmic Surg Lasers Imaging Retina
2022;53:481–489.]
Finding travel proportion under COVID-19
Authors: Zhou Yong , Ding Yiming
Published: September 2022

Travel restrictions have become an important epidemic preventive measure, but there are few relevant quantitative studies. In this paper, travel proportion is introduced into a four-compartment model to quantify the spread of COVID-19 in Wuhan. It is found that decreasing the travel proportion can reduce the peak of infections and delay the peak time. When the travel proportion is less than 35%, transmission can be prevented. This method provides reference for other places.
La démocratie comme espace d’émergence utopique
Authors: Riba Jordi
Published: September 2022

Les crises généralisées exigent, au-delà des solutions immédiates, des éclaircissements sur la façon dont peut être renversée la situation à laquelle nous sommes arrivés. La démocratie en tant que forme de vie commune montre des faiblesses. Néanmoins, elle reste la meilleure forme de vie entre humains. Parmi les éléments qui peuvent aider à renforcer la démocratie se trouve l’utopie. Les liens entre la démocratie et l’utopie sont présentés par Miguel Abensour de sorte que, si l’une va sans l’autre, la vie en commun s’efface.
Plus que la « vie nue ». Vie biologique et vie sociale chez Jean-Marie Guyau
Authors: Contini Annamaria
Published: September 2022

Dans la philosophie de la vie de Jean-Marie Guyau, qui a influencé des auteurs comme Nietzsche et Bergson, seule une notion de la vie indissociablement biologique et esthétique peut synthétiser le fait et la valeur, ainsi que fonder un nouveau modèle de rationalité et une nouvelle éthique. L’article repère un fil rouge entre cette perspective, pour laquelle le faire artistique est l’« habit » que prend la vie lorsqu’elle répond pleinement à sa fonction, et la démarche utilisée par Foucault pour introduire le thème d’une esthétique de l’existence. On montre ainsi que Guyau préfigure une sorte de bio-éthique qui vise à concilier le self-government et la créativité de l’agent moral avec la solidarité sociale.
Effects of Logo Design toward Brand Personality Perception: A Study of Logo Elements in Real Estate Business
Authors: Leelayudthyothin Mittheera
Published: September 2022

The topics of logo design perceptions have been examined among academic scholars recently. However, elements of logo as one aspect of logo designs were rarely studied and required to be investigated. This research aimed to measure the effects of logo elements comprising type font, graphic form, and color toward brand personality perceptions, as well as to explore the relationship between business stakeholders and brand personality. In addition, logo design meaning and brand personality traits including sincerity, excitement, security, and up to date were evaluated toward logo elements. Two hundred and sixty-five samples were selected using convenience sampling from employees and residents of Thai property developers. The mix method approach was employed for the data collecting through interviewing and questionnaire survey and analyzed by Chi-square tests. The findings reveal that logo design transfers all-inclusive meaning to viewers, encompassing name, graphic, and color interpretation. Besides, there is a connection between logo elements and perception of brand personality, but in order to obtain one salient dimension of brand personality, exhibiting the whole logo was suggested rather than individual element of logo. Furthermore, brand personality was considered vital among market sharing property industry which personality of sincerity was chiefly perceived when stakeholders appreciate a logo of their real estate brands.
D-DAGNet: AN IMPROVED HYBRID DEEP NETWORK FOR AUTOMATED CLASSIFICATION OF GLAUCOMA FROM OCT IMAGES
Authors: Sunija A. P. , Gopi Varun P. , Krishna Adithya K.
Published: September 2022

The introduction of Optical Coherence Tomography (OCT) in ophthalmology has resulted in significant progress in the early detection of glaucoma. Traditional approaches to identifying retinal diseases comprise an analysis of medical history and manual assessment of retinal images. Manual diagnosis is time-consuming and requires considerable human expertise, without which, errors could be costly to human sight. The use of artificial intelligence such as machine learning techniques in image analysis has been gaining ground in recent years for accurate, fast and cost-effective diagnosis from retinal images. This work proposes a Directed Acyclic Graph (DAG) network that combines Depthwise Convolution (DC) to decisively recognize early-stage retinal glaucoma from OCT images. The proposed method leverages the benefits of both depthwise convolution and DAG. The Convolutional Neural Network (CNN) information obtained in the proposed architecture is processed as per the partial order over the nodes. The Grad-CAM method is adopted to quantify and visualize normal and glaucomatous OCT heatmaps to improve diagnostic interpretability. The experiments were performed on LFH_Glaucoma dataset composed of 1105 glaucoma and 1049 healthy OCT scans. The proposed faster hybrid Depthwise-Directed Acyclic Graph Network (D-DAGNet) achieved an accuracy of 0.9995, precision of 0.9989, recall of 1.0, F1-score of 0.9994 and AUC of 0.9995 with only 0.0047 M learnable parameters. Hybrid D-DAGNet enhances network training efficacy and significantly reduces learnable parameters required for identification of the features of interest. The proposed network overcomes the problems of overfitting and performance degradation due to accretion of layers in the deep network, and is thus useful for real-time identification of glaucoma features from retinal OCT images.
Breast Cancer Detection Using Different Classification and Ensemble Methods
Authors: Gupta Tanisha , Gupta Piyush , Pal Ved , Bhatia Komal Kumar
Published: September 2022

Breast cancer causes the cells in the breast to grow in an uncontrolled manner. Countless research has been conducted to enhance the timely diagnose of breast cancer, which expands the likelihood of survival and hence the survival rates. Mammography photographs were the focus of the majority of the investigation. Early detection of cancer is frequently delayed because symptoms are frequently not visible during the early stages of cancer. Mammography scans, on the other hand, can sometimes produce false positives, putting the patient health in danger. Different techniques, which are simpler to implement and perform better with different data sets, are needed to develop more reliable and safer forecasts. Healthcare data is huge and unstructured. Machine learning has long been the methodology of choice in breast cancer pattern classification and forecast modelling because of its distinct benefits based on feature identification from a comprehensive breast cancer dataset. The study evaluates and compares the results of seven different ML algorithms based on different performance metrics.
A Computational Model Approach for a Lifestyle Disorder
Authors: Arora Komal , Kumar Deepak , Khurana Pooja
Published: September 2022

Hypertension is known to be one of the most common medical and lifestyle disorders, signalized by the elevated levels of blood pressure, that is systolic and diastolic blood pressures more than 140 mm/Hg and 90 mm/Hg, respectively, associated with the various risk factors for cardiovascular diseases, chronic kidney disease, and some of the neurodegenerative diseases. Major lifestyle parameters such as lack of physical activity, high concentration of salt in diet, alcohol consumption, smoking, stress, and high weight are significantly related to this disease. Computational models of physiological frameworks can significantly help with our comprehension of the frameworks under study and can likewise be utilized in educating and examination apparatuses. Computational models can supplement exploratory and clinical investigations, yet additionally challenge flow standards, reclassify our comprehension of systems driving lifestyle, and shape future research.
Monitoring Supply Chain Management in Healthcare Using Wireless Sensor Networks
Authors: Chugh Amit , Panda Supriya P.
Published: September 2022

The healthcare system is transforming from traditional medication to smart healthcare. Smart healthcare plays a vital role in urban development. Medicines and injections are the key building blocks of the healthcare system. Environmental conditions like temperature, pressure, and humidity can adversely affect the quality of medicines and injections. So, maintaining proper temperature and humidity is a must to keep them safe. There is need of continuous monitoring of medicines and injections during their supply chain. The wireless sensor network (WSN) strives to detect surrounding parameters and relay sensed data to the base station without any human deployment. Supply chain management (SCM) in healthcare system is also one of the applications, which requires a different type of monitoring, supervision, and handling at different levels. WSN adds a contribution in the making of smart healthcare, as it uses the smart way (sensors) of monitoring the medicines and injections in the supply chain.
Design and Implementation of Smart and Safety Device for Women and Children
Authors: B. Vijayakumari , V. S. Benitha , R. M. Shabna , T. Siva Sundari , T. Manonmani
Published: September 2022

In modern India, with the government surveys, it is clearly agreed upon that still women are the major victims of violent crimes and harassment. Since most of the women employees are there in all the fields, women have to travel a long distance lonely and during late hours also. Thus, women's safety is a much desired need of this hour. This chapter focuses to provide safety for women and to reduce the number of crimes to some extent and provides security exclusively for women employees. The ultimate aim of the device is to transmit the emergency situation of the victim along with their current location to parents and the police for help. The location is traced using GPS and a message is sent via GSM to the predefined numbers. When women sense that they are in danger they can manually press the button so that their current location along with an alert message is sent to the predefined numbers. The device can involuntarily detect the emergency situation by fall detection sensor and heart rate sensor. This module can also send an alert using medical emergency.
Smart Interactive System for the Hearing and Speech Impaired
Authors: Saini Rohan , Gupta Sonali
Published: September 2022

The deaf face far more difficulties than normal people in day-to-day life, and sign language acts as the most important communication tool for them. Though a lot of books are available as a learning resource for this language, it's not common amongst a major section of the Indian population. An important area of concern is when they need to seek healthcare facilities. The doctors and other hospital staff struggle to understand their issues, and they themselves also put in much effort and time to communicate it to the doctors. Irrespective of joint efforts put in by both the communities, they are unable to get proper health benefits and the services of world-class doctors. In order to solve this problem, SISD, which is a smart interactive system for differently abled persons, based on Indian Sign Language has been proposed. It works similarly to the interactive voice response (IVR) system. SISD provides the user with choices (animations/videos of signs) and recognizes the user's choice via a sign language recognition system.
From Face-to-face to Online Foreign Language Teaching
Authors: Nikitaki Stavroula , Papadima-Sophocleous Salomi , Nicolaou Anna
Published: September 2022

The COVID-19 pandemic transformed the educational landscape overnight. Face-to-face instruction urgently gave its place to online teaching, forcing educators to adopt tools and techniques they had never used before and creating doubts regarding its effectiveness. However, it also improved teachers' and students' digital skills creating new perceptions towards technology-enhanced teaching. This study maps the use of technology in online FL teaching in Greek Primary Schools during the first COVID-19 lockdown. Using a mixed methods approach, an online questionnaire, and interviews, it records the tools and the ways they were used, the pedagogical choices made, the challenges and the factors that affected the quality of online teaching during the crisis. Based on the lessons learned and the literature, this chapter aims to contribute to sharing the knowledge gained and provide recommendations to the state, schools, and teachers for the preparation and delivery of quality online or blended learning in the future.
English Learners' Self-Regulated Learning Strategies
Authors: Vezir Merve , Erdem Cahit
Published: September 2022

This study investigates the relationship between self-regulated language learning strategies English learners use in online and traditional classrooms and their self-regulation experiences in both settings. An explanatory sequential design was used to make a comparison. A total of 106 students from a preparatory school at a Turkish state university took part in the study and seven students were interviewed to better understand their experiences. The results suggest that students had a higher mean of self-regulation in face-to-face classrooms than online. There is a significant positive relationship between their self-regulated learning in face-to-face and online classes. Language learners' self-regulation in face-to-face education accounts for 32% of their online self-regulated learning. The qualitative data supports quantitative data and reveals significant themes and categories to uncover students' self-regulation in face-to-face and online environments. The results are comparatively discussed. Implications and recommendations are provided.
Promoting Interaction for Language Learners in Blended Learning Environments Through OEIP
Authors: Lu Yi , Miyake-Trapp Jennifer , Wong Kevin M.
Published: September 2022

With the impact of COVID-19, the higher education sector was forced to shift classes to a flexible delivery method that was not limited by space. To provide equal learning opportunities to every student, universities turned to technology to support teaching and learning across the platforms. Drawing from Vygotsky's social, emotional, and cognitive interaction theories, this qualitative case study presents an innovative teaching and learning support system (OEIP) that blends technology with pedagogy. This study brings forth three critical perspectives to investigate how OEIP facilitates interaction for language learners in a blended learning environment. Findings demonstrate how inclusion, collaboration, and processing time are key components for teaching language learners in a blended learning environment.
Empowering School Leaders as Middle Executives in the Centralized Education System of Cyprus
Authors: Kafa Antonios
Published: September 2022

This chapter will provide information on the context of supporting and empowering school leaders in crisis management in the global pandemic crisis. Based on the contextual paradigm of the centralized education system in Cyprus, and in particular on school principals in Cyprus who acted as middle executives, this chapter will provide a guided theoretical perspective on how to lead in school organizations within a centralized education system during crises by focusing on the developmental framework of school leaders' skills capacity. In particular, through collecting evidence from the context of Cyprus during the pandemic crisis, a conceptual framework of empowering school leaders as middle executives is presented and analyzed. This framework could support policy experts on school leaders' professional training and capacity for handling uncertainty and crisis. Also, further empirical research could validate the proposed framework and examine to what extent this framework could be adopted by school leaders in school organizations both in centralized and decentralized education systems.
Religious Leaders Leading and Managing in Times of Crisis and Change
Authors: Thomas Oral A. W.
Published: September 2022

Within the church or other industries, leadership is a draining undertaking even for the strongest of personalities. It involves constant self-giving, and as such, burn out and disillusionment among church middle-tier leaders and managers are not uncommon because they are not invested and empowered with the kind of ownership and responsibility needed to launch the mission of the church in the society, normally, more so in a crisis. This work argues that it is the middle-tier leaders and managers of church organizations who are in crisis, not the organizations of which they are a part. Kenotic and martyrological models of leadership, alongside the use of wilderness as a metaphor for crisis, frames the argument. It emphasizes the necessity of leaders' presence, visibility, and availability during crises and proposes how they can flourish in their leadership roles by utilizing the synergistic capabilities of different leadership models. It also recommends strategies to motivate and empower those not invested with high office for greater leadership crisis efficiency.
Exploring a Hybrid Leadership Model in Higher Education Institutions in Times of Crisis
Authors: Colley Vanessa Ellis , Blair-Walcott Kenisha , Beckford Wilfred , Nelson Tenneisha , Palmer-Clarke Yolanda
Published: September 2022

This chapter presents a case for the adaptation of a hybrid model of leadership for mid-level executives in higher education institutions (HEIs) during times of crises. The authors propose the ACT framework, which is the hybridization of adaptive, collaborative, and transformative leadership theories, as a suitable model for HEIs' mid-level executives to use during times of crises. First, the authors explore the tenets of the theories and their application. Second, they examine their appropriateness for use by mid-level executives and ultimately propose a hybrid model. To illustrate the merits and potential of the model, the authors analyzed two cases to highlight the benefits of applying this model. The ACT framework benefits these leaders through crisis management training that facilitates capacity building in the formulation of equitable solutions, collaboration, and agility in responding to complex adaptive, wicked problems. The authors present the ACT framework as a suitable option for solving crises in HEIs through case studies.
Analysis of Performance From a Managerial Accounting Perspective
Authors: Yildirim Lavinia Essen
Published: September 2022

The results of scientific study and literature review indicate that new strategic transformations of entities are being examined for the adoption of a performance management system. This system has the responsibility of converting the strategic plan of long-term and medium-sized objectives into associated activities between the managerial plan and financial-accounting. An integrated system of performance indicators is implemented to properly estimate a company's worth in this chapter, which analyses the new research paths at the junction of accounting and management. The findings reveal that implementing performance management inside an entity satisfies a number of conditions that are directly connected to the level of achievement of the specified goals.
Haptic Interaction in Virtual Reality
Authors: Gallace Alberto
Published: September 2022

Touch is fundamental to create our perception of reality and to allow fulfilling social experiences, such as those at the basis of metaverses. In order to be accurately reproduced, a number of scientific and technological aspects should be considered. In this chapter, the authors highlight the relevance of the tactile modality in eliciting ‘presence' in virtual reality interactions. They also discuss the neuroscientific foundation of our bodily interactions and the fact that they are based on a number of receptors and neural circuits that contribute to the complexity of our perceptions. The available technological devices for the reproduction of touch in virtual environments and their limitations are also described. They suggest that virtual interactions should include more of this sensory modality and that attempts should be made to go beyond the actual approach to ‘mimicking reality'. In particular, future simulations should consider the perspective of creative ‘hyper-sensations' including ‘hyper-touch' on the basis of our psychological and neuroscientific knowledge.
Digital Transformation Stemming From a Business Assessment of Construction Industry 4.0
Authors: Montevidoni Edoardo , Mirarchi Claudio , Parisi Antonino Riccardo , Pavan Alberto
Published: September 2022

The methods, processes, and tools adopted according to the needs of the transition based on the Industry 4.0 should be based on the level of digitization of the companies, checking and monitoring their digitization over time, and considering the relation within the society. The study presented in this chapter starts from the work of the European community, directed to the assessment of the digital maturity of companies in the context of the European network of digital innovation hubs. Assessment that takes place through the compilation of questionnaires assessing the digital maturity of companies. Starting from what has been developed by the European community, the authors believe it is essential to develop specific focal points according to the peculiarities of the different sectors and in particular considering the construction one. This approach will open a new key to promote the digitalisation of the construction sector that is still lagging compared to the other industrial sectors.
Digital Twin for Amyotrophic Lateral Sclerosis
Authors: Del Giudice Matteo , Surian Roberta , Osello Anna
Published: September 2022

This chapter focuses on the context in which patients such as those with Amyotrophic Lateral Sclerosis (ALS) are placed and what possibilities information and communication technologies (ICTs) offer to keep them in touch with the world to reach Society 5.0. In particular, the authors intend to show how the healthcare sector can use digital twin (DT) through elements of augmented virtuality (AR) and building information modelling (BIM) to create interactive interfaces that can solve, in part, problems involving frail patients but at the same time allowing their monitoring. Interconnection is possible through a gamification approach. In addition, a solution that considers the user (patient) involvement and that aims at its increase through interaction with alternative places to their home so as to stimulate them to keep an active mind and the degree of fun in a limiting condition is proposed.
Working Women's Digital Inclusion (Exclusion) During the COVID-19 Pandemic and Beyond
Authors: Asi Aiza De Torres , Floris Michela , Argiolas Giuseppe
Published: September 2022

The COVID-19 crisis provides a novel perspective for studying a pre-existing issue of the gender digital divide. This chapter examines the literature on women's digital economic participation during the pandemic. A systematic literature review (SLR) of 20 peer-reviewed papers from various social sciences, encompassing the COVID-19 period of 2019 to early 2022, was conducted. The discussions surrounding the impact on women's migration to work from home are extended across the three key levels from which digital inequalities emerge: (1) digital accessibility, (2) digital literacy, and (3) family role. The prevailing narrative in the reviewed publications revolves around women's unpaid care labor during the pandemic, the primary cause of the remunerated time decrease and productivity. Overall, the findings suggest that digital inequality is embedded in societal structural inequalities; thus, it is crucial not to let the overemphasis on digital accelerations leave behind the deep-seated challenges of women's digital inclusion amidst diverse roles.
Impact of Occupational Stress and Job Burnout on the Health of University Teachers
Authors: Anadkat Krina , Joshi Meeta
Published: September 2022

It is observed that occupational strain and work stress directly affect the well-being of university educators. Burnout is one in which an individual feels an emotional, physical, and mental exhaustion carried by life-threatening and prolonged stress. As the stress continues, they start losing the interest and motivation, and it also causes illness to their body that makes them vulnerable. The authors wanted to present a thorough overview of research that looks at theoretical correlations among stress in addition extra variable quantity towards what remains recognized (in addition what isn't) around the reasons and effects of burnout among university professors, as well as how this connects to burnout theories. These findings repeatedly suggest that undesirable employment characteristics—such as a heavy workload—have a negative impact, and negative work environment, lower salary, and work intensity have a positive correlation with work stress.
Corporate Sustainability and Internet of Things (IoT)
Authors: Saini Himani
Published: September 2022

The internet of things (IoT) has become a vital component in the effort to achieve net-zero emissions. When it comes to transforming into sustainable resources, the combination of green technology and renewable energy are the reliable resources that are increasingly being acknowledged by global business leaders. The IoT is a trend that is shaping future innovations. Business from every industry is using IoT to create ways for sustainability and to reduce energy waste. IoT projects that are truly transformational can have a significant beneficial influence on sustainability in corporates. The most important purpose of IoT technologies is to make procedures simple in various domains in order to improve the efficiency of the system. Implementation of IoTs in corporates is not easy, but to achieve sustainability targets in business, IoT is a preferred choice. Through this chapter, the author will get to know how IoT technology drives sustainable development in corporate approaches to gaining user trust in internet-connected gadgets with the benefits and drawbacks of IoT.
Digital Transformation and Innovation Management
Authors: Chadha Priyanka , Gera Rajat
Published: September 2022

Digital innovation is the creation and commercialization of novel products and services while digital transformation indicates the combined effects of several digital innovations by novel actors (and actor constellations), structures, practices, values, and beliefs that change, threaten, replace, or complement existing rules of the game within organizations and fields. Since innovation processes themselves are subject to digitization, scholars have argued that accepted theories of innovation are no longer applicable, and hence, there is a significant need for novel theorizing and empirical research on digital innovation management.
HR 4.0 Exercise in the Post-COVID-19 Scenario
Authors: Sharma Deepa
Published: September 2022

The coronavirus pandemic has adversely affected the private sector in building the economy. And private organizations and the people working in them have been harshly affected both in the time and post COVID-19 with delicately facing conflicts in personal and professional life. The pandemic of COVID-19 has rapidly developed into a worldwide monetary emergency with the health of employees and is spreading to the real sector in addition to posing a developing threat to the monetary structure. In delicate and conflict-affected circumstances the difficulties related to the pandemic have to be faced on top of the significant difficulties currently working in the private sector. COVID-19 has affected the health of employees mentally and physically, socially, publicly, personally, and professionally.
Helicopter Rotor Blade Planform Optimization Using Parametric Design and Multi-Objective Genetic Algorithm
Authors:   U.S. Army ERDC, Wenren Yonghu ,   U.S. Army CCDC Av.&MC, Lim Joon , Allen Luke , Haehnel Robert , Dettwiller Ian
Published: September 2022

In this paper, an automated framework is presented to perform helicopter rotor blade planform optimization. This framework contains three elements, Dakota, ParBlade, and RCAS. These elements are integrated into an environment control tool, Galaxy Simulation Builder, which is used to carry out the optimization. The main objective of this work is to conduct rotor performance design optimizations for forward flight and hover. The blade design variables manipulated by ParBlade are twist, sweep, and anhedral. The multi-objective genetic algorithm method is used in this study to search for the optimum blade design; the optimization objective is to minimize the rotor power required. Following design parameter substitution, ParBlade generates the modified blade shape and updates the rotor blade properties in the RCAS script before running RCAS. After the RCAS simulations are complete, the desired performance metrics (objectives and constraints) are extracted and returned to the Dakota optimizer. Demonstrative optimization case studies were conducted using a UH-60A main rotor as the base case. Rotor power in hover and forward flight, at advance ratio = 0.3, are used as objective functions. The results of this study show improvement in rotor power of 6.13% and 8.52% in hover and an advance ratio of 0.3, respectively. This configuration also yields greater reductions in rotor power for high advance ratios, e.g., 12.42% reduction at advance ratio 0.4.
Modeling and Optimization of Propulsion Systems for eVTOL Aircraft
Authors:   DAR Corporation, Darrah Drew , Moorthamers Bruno , Anemaat Willem , Liu Wanbo
Published: September 2022

UAV platforms often use commercial off the shelf electric propulsion units for thrust generation. The manufacturers of these electric motors often only include the maximum efficiency or a list of efficiencies coupled with specific rotors. Taking into account the effect of the electronic speed control, many combinations are possible, making it hard to predict the final propulsion and efficiency of the complete propulsion unit. In this paper, a novel method of analysis is discussed to predict the flight endurance of any motor, battery, propeller combination. Using flight testing, the model is verified for four specific configurations. The model is then used to present some trends on flight endurance and cost as a function of vehicle weight using a total of 13 configurations. In future, the model could be used by UAV designers to better predict the performance of their aircraft using COTS components.
Accuracy Improvement Methods to a Deep Neural Network Model in Computer Vision
Authors:   The Boeing Company, Chrysilla Grace
Published: September 2022

This paper covers machine learning approaches to improve the accuracy of a Deep Neural Network (DNN) inference in computer vision, particularly in image segmentation. A few benefits of object recognition aided by computer vision is to help aircraft crew avoid adversaries in various weather conditions, to offload the crew's attention from finding desired objects as well as estimating the position of those objects throughout missions. Since DNN inference is trained without explicit programming, it is challenging to precisely locate its sub-optimality when it performs less accurate prediction. This paper explores three machine learning approaches that improve a DNN model prediction accuracy: 1) Prediction result analysis using the author's original work called Directional Pixel Delta as well as Jaccard's Intersection over Union (IoU) loss function 2) Bayesian optimization hyper-parameter tuning 3) Training data optimization via Bootstrap Aggregating.
Advanced Seat Belt System for Occupant Restraint
Authors:   Safe Inc., Richards Marv
Published: September 2022

Current passive occupant restraints do not adequately restrict upper torso/head motion during a crash, especially with a combined forward and vertical acceleration component. The belt geometry of conventional webbing restraints allows the upper torso to rotate forward, increasing the probability of secondary impacts. In addition to the suboptimal belt geometry issues, some occupants are not familiar with the current 4-point and 5-point restraints. Safe, Inc. has developed a passive restraint system with improved belt routing geometry to reduce the occupant's motion and resulting injury risk. The restraint supplements the familiar automotive 3-point restraint system with a second, mirror image diagonal shoulder belt to provide upper torso restraint in all directions. It is intuitive to don with minimal installation instruction to encourage more frequent and proper use. The restraint would be beneficial to all vehicle types and is well suited for the emerging Urban Air Mobility (UAM) platforms.
Test and Analysis Methodology for Validating Crashworthiness of AW609 Tiltrotor
Authors:   Leonardo Helicopters, Miller Ryan ,   Politecnico di Milano, Anghileri Marco , DiRenzo Andrea , Waterman Jim , Turconi Fabrizio
Published: September 2022

The AW609 tiltrotor is the first new class of air vehicle pursuing civil certification in over fifty years under FAA order 21.17B. The primary safety objective for crashworthiness for any aviation vehicle is to maximize the probability of survival and to minimize the probability of post-crash fires. A unique feature of the AW609 design is a high mounted wing above the fuselage, with nacelles at the end of the wing that contain heavy items of mass such as engines, rotor systems and transmissions. In order to create a viable aviation product with suitable empty weight fraction a controlled wing failure mechanism at the wing root is included to shed wing and nacelle mass in high g landing events. This allows for protection of the fuselage and the occupants up to the full regulatory vertical landing requirement of 12 g's. An analysis supported by test methodology is presented that includes explicit dynamic finite element modeling, coupon, element and full-scale drop testing of a full span AW609 wing. The objective of the testing is to characterize the equivalent quasi-static g level for damage initiation and progressive damage progression for the tested configuration, and to validate the associated analysis. The dynamic analysis, once validated by test, shall be used to analyze other weight and center of gravity combinations relevant to the anticipated AW609 mission profiles.
Individual Differences in Cueing Utilization in Rotary-Wing Aviators
Authors:   U.S. Army Aeromedical Research Laboratory, Feltman Kathryn , Baggs Jason , Wilson Michael
Published: September 2022

A preliminary qualitative review of participant comments from a series of three studies was completed. The three studies evaluated different aspects of multisensory cueing developed by the Army's Degraded Visual Environment Mitigation program. A Template Analysis was used to identify themes across the studies in which participants identified aspects of the cueing that they preferred or did not prefer. Outcomes suggest that individual differences in perceived usefulness of cueing may exist. Further research, including qualitative analysis of additional studies and experimental research with a larger sample, is recommended.
The Portable Helicopter Oxygen Delivery System (PHODS) in the Altitude Chamber: Cerebral and Peripheral Blood Oxygen and Perceptual Vigilance
Authors:   U.S. Army Aeromedical Research Lab, Temme Leonard ,   U.S. Army School of Aviation Medicine, Ard Dennis , Bowers Bobby , Hayes Amanda , St.Onge Paul , McAtee Aaron , Petrassi Frank
Published: September 2022

The Portable Helicopter Oxygen Delivery System (PHODS) provides supplemental oxygen (O2) to Army aircrew at altitudes up to 18,000 feet (ft) above mean sea level (MSL). Previous PHODS tests and evaluations (T&E) used conventional pulse oximetry to monitor peripheral blood O2 saturation (SpO2). The present T&E incorporates near infrared spectroscopic (NIRS) measures of regional cerebral blood O2 saturation (rSO2). Army aircrew (N = 22) assessed PHODS functionality and effectiveness in an altitude chamber during three challenges: 10 minutes of a visual reaction time test, 5 minutes of text reading, and 2 minutes of a physical workload challenge (self-paced squats). Throughout the T&E, SpO2 and rSO2 were measured continuously at ground level and at pressure altitudes of 14,000 and 17,800 ft MSL. Results indicate that the PHODS maintained constant SpO2 throughout all testing but not rSO2 in the presence of workload. The possible operational significance of this finding is discussed.
H145 New Comfort Experience: Upgrading From Four-Bladed HMR To Five-Bladed BMR
Authors:   Airbus Helicopters, Rammer Raphael , Priems Martijn , Dreher Stefan , Dieterich Oliver
Published: September 2022

In 2020, Airbus Helicopters achieved EASA type certification of the BK117 D-3 (branding name H145), which is the latest variant of the BK117 family. It entails a significant upgrade from the BK117 D-2. The major change, a new five bladed main rotor, required extensive investigations with respect to dynamics. This paper gives a short overview of the history of the BK117 family development from its beginnings up to now and on the investigations performed in the fields of structural dynamics, aeromechanics stability and equipment integration for its latest variant. A development and certification methodology, relying on the use of numerical tools validated by using the results of extensive laboratory, ground and flight testing was applied. It is shown that the upgrade of the H145 with the five bladed rotor allowed to reduce the helicopter's empty weight by omitting landing gear dampers and anti-vibration measures as well as thanks to the reduced weight of the rotor system itself.
The Inter-2-Blade Lead-Lag Damper Concept
Authors:   Politecnico di Milano, Masarati Pierangelo , Frison Leonardo , Zanoni Andrea
Published: September 2022

A novel concept of inter-blade damper rotor hub arrangement is proposed. Inter-blade lead-lag dampers currently used in some helicopters connect adjacent blades; their damping effect is associated with the relative lead-lag motion of the blades. In the proposed arrangement, called 'inter-2-blade,' dampers connect non-adjacent blades. The proposed arrangement improves ground-resonance stability and reduces harmonic components of the loads in the dampers. The Deutsch criterion for the sizing of lead-lag dampers is generalized to the inter-blade and inter-2-blade arrangements.
Development Of eVTOL Aircraft For Urban Air Mobility At Joby Aviation
Authors:   Joby Aviation, Stoll Alex , Bevirt JoeBen
Published: September 2022

Typical existing VTOL aircraft -- notably, helicopters -- are limited in their suitability to civil transportation due to high operating costs, high noise levels, and safety levels below other forms of commercial aviation. Modern electric propulsion technology offers potential solutions to these drawbacks and potentially allows for practical VTOL aircraft configurations less compromised than traditional solutions. Through a multiyear study of various configurations, Joby selected the tilt-propeller as the optimal approach to safely achieve relatively high speed, long range, and low noise in urban air mobility operations. Full-scale flight testing began with a demonstrator phase, demonstrating successful transition between thrustborne and wingborne flight in 2017, and proceeded to a pre-production prototype phase, demonstrating high performance, including a 249 km (134 nm) VTOL flight and a true airspeed of over 322 km/h (174 kt), as well as low noise, measuring 45 dB(A) at 500 m (1,640 ft) equivalent in flyover and under 65 dB(A) at 100 m (328 ft) equivalent in hover.
Power System Characterization and Flight Testing of a >55lb Hybrid-Electric Multirotor
Authors:   LaunchPoint EPS, Ricci Michael ,   Offshore Aviation, Hicks Robert , Varahamurthy Vishaal
Published: September 2022

Hybrid electric propulsion is a promising technology to enable new aircraft configurations with excellent overall vehicle performance. Electric propulsion enables new types and configurations of rotorcraft, but the poor energy density of batteries has limited the overall endurance of electrically propelled aircraft. A hybrid architecture can take advantage of the high energy density of chemical/liquid fuels; but also utilize the advantages of electric propulsion technology. This advantage of a hybrid system can only be realized if the hybrid system is light enough and efficient enough. If not done in a highly optimized way the hybrid system can end up being too heavy and too inefficient—the worst of both worlds instead of the best of both worlds. This paper presents details of the LaunchPoint EPS hybrid electric power system and results of flight tests showing aircraft endurance improvements of at least 4 times longer over a pure electric version of the same aircraft.